diff --git a/static/chart.js b/static/chart.js new file mode 100644 index 0000000..5899061 --- /dev/null +++ b/static/chart.js @@ -0,0 +1,13269 @@ +/*! + * Chart.js v3.7.1 + * https://www.chartjs.org + * (c) 2022 Chart.js Contributors + * Released under the MIT License + */ +(function (global, factory) { +typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : +typeof define === 'function' && define.amd ? define(factory) : +(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.Chart = factory()); +})(this, (function () { 'use strict'; + +function fontString(pixelSize, fontStyle, fontFamily) { + return fontStyle + ' ' + pixelSize + 'px ' + fontFamily; +} +const requestAnimFrame = (function() { + if (typeof window === 'undefined') { + return function(callback) { + return callback(); + }; + } + return window.requestAnimationFrame; +}()); +function throttled(fn, thisArg, updateFn) { + const updateArgs = updateFn || ((args) => Array.prototype.slice.call(args)); + let ticking = false; + let args = []; + return function(...rest) { + args = updateArgs(rest); + if (!ticking) { + ticking = true; + requestAnimFrame.call(window, () => { + ticking = false; + fn.apply(thisArg, args); + }); + } + }; +} +function debounce(fn, delay) { + let timeout; + return function(...args) { + if (delay) { + clearTimeout(timeout); + timeout = setTimeout(fn, delay, args); + } else { + fn.apply(this, args); + } + return delay; + }; +} +const _toLeftRightCenter = (align) => align === 'start' ? 'left' : align === 'end' ? 'right' : 'center'; +const _alignStartEnd = (align, start, end) => align === 'start' ? start : align === 'end' ? end : (start + end) / 2; +const _textX = (align, left, right, rtl) => { + const check = rtl ? 'left' : 'right'; + return align === check ? right : align === 'center' ? (left + right) / 2 : left; +}; + +class Animator { + constructor() { + this._request = null; + this._charts = new Map(); + this._running = false; + this._lastDate = undefined; + } + _notify(chart, anims, date, type) { + const callbacks = anims.listeners[type]; + const numSteps = anims.duration; + callbacks.forEach(fn => fn({ + chart, + initial: anims.initial, + numSteps, + currentStep: Math.min(date - anims.start, numSteps) + })); + } + _refresh() { + if (this._request) { + return; + } + this._running = true; + this._request = requestAnimFrame.call(window, () => { + this._update(); + this._request = null; + if (this._running) { + this._refresh(); + } + }); + } + _update(date = Date.now()) { + let remaining = 0; + this._charts.forEach((anims, chart) => { + if (!anims.running || !anims.items.length) { + return; + } + const items = anims.items; + let i = items.length - 1; + let draw = false; + let item; + for (; i >= 0; --i) { + item = items[i]; + if (item._active) { + if (item._total > anims.duration) { + anims.duration = item._total; + } + item.tick(date); + draw = true; + } else { + items[i] = items[items.length - 1]; + items.pop(); + } + } + if (draw) { + chart.draw(); + this._notify(chart, anims, date, 'progress'); + } + if (!items.length) { + anims.running = false; + this._notify(chart, anims, date, 'complete'); + anims.initial = false; + } + remaining += items.length; + }); + this._lastDate = date; + if (remaining === 0) { + this._running = false; + } + } + _getAnims(chart) { + const charts = this._charts; + let anims = charts.get(chart); + if (!anims) { + anims = { + running: false, + initial: true, + items: [], + listeners: { + complete: [], + progress: [] + } + }; + charts.set(chart, anims); + } + return anims; + } + listen(chart, event, cb) { + this._getAnims(chart).listeners[event].push(cb); + } + add(chart, items) { + if (!items || !items.length) { + return; + } + this._getAnims(chart).items.push(...items); + } + has(chart) { + return this._getAnims(chart).items.length > 0; + } + start(chart) { + const anims = this._charts.get(chart); + if (!anims) { + return; + } + anims.running = true; + anims.start = Date.now(); + anims.duration = anims.items.reduce((acc, cur) => Math.max(acc, cur._duration), 0); + this._refresh(); + } + running(chart) { + if (!this._running) { + return false; + } + const anims = this._charts.get(chart); + if (!anims || !anims.running || !anims.items.length) { + return false; + } + return true; + } + stop(chart) { + const anims = this._charts.get(chart); + if (!anims || !anims.items.length) { + return; + } + const items = anims.items; + let i = items.length - 1; + for (; i >= 0; --i) { + items[i].cancel(); + } + anims.items = []; + this._notify(chart, anims, Date.now(), 'complete'); + } + remove(chart) { + return this._charts.delete(chart); + } +} +var animator = new Animator(); + +/*! + * @kurkle/color v0.1.9 + * https://github.com/kurkle/color#readme + * (c) 2020 Jukka Kurkela + * Released under the MIT License + */ +const map$1 = {0: 0, 1: 1, 2: 2, 3: 3, 4: 4, 5: 5, 6: 6, 7: 7, 8: 8, 9: 9, A: 10, B: 11, C: 12, D: 13, E: 14, F: 15, a: 10, b: 11, c: 12, d: 13, e: 14, f: 15}; +const hex = '0123456789ABCDEF'; +const h1 = (b) => hex[b & 0xF]; +const h2 = (b) => hex[(b & 0xF0) >> 4] + hex[b & 0xF]; +const eq = (b) => (((b & 0xF0) >> 4) === (b & 0xF)); +function isShort(v) { + return eq(v.r) && eq(v.g) && eq(v.b) && eq(v.a); +} +function hexParse(str) { + var len = str.length; + var ret; + if (str[0] === '#') { + if (len === 4 || len === 5) { + ret = { + r: 255 & map$1[str[1]] * 17, + g: 255 & map$1[str[2]] * 17, + b: 255 & map$1[str[3]] * 17, + a: len === 5 ? map$1[str[4]] * 17 : 255 + }; + } else if (len === 7 || len === 9) { + ret = { + r: map$1[str[1]] << 4 | map$1[str[2]], + g: map$1[str[3]] << 4 | map$1[str[4]], + b: map$1[str[5]] << 4 | map$1[str[6]], + a: len === 9 ? (map$1[str[7]] << 4 | map$1[str[8]]) : 255 + }; + } + } + return ret; +} +function hexString(v) { + var f = isShort(v) ? h1 : h2; + return v + ? '#' + f(v.r) + f(v.g) + f(v.b) + (v.a < 255 ? f(v.a) : '') + : v; +} +function round(v) { + return v + 0.5 | 0; +} +const lim = (v, l, h) => Math.max(Math.min(v, h), l); +function p2b(v) { + return lim(round(v * 2.55), 0, 255); +} +function n2b(v) { + return lim(round(v * 255), 0, 255); +} +function b2n(v) { + return lim(round(v / 2.55) / 100, 0, 1); +} +function n2p(v) { + return lim(round(v * 100), 0, 100); +} +const RGB_RE = /^rgba?\(\s*([-+.\d]+)(%)?[\s,]+([-+.e\d]+)(%)?[\s,]+([-+.e\d]+)(%)?(?:[\s,/]+([-+.e\d]+)(%)?)?\s*\)$/; +function rgbParse(str) { + const m = RGB_RE.exec(str); + let a = 255; + let r, g, b; + if (!m) { + return; + } + if (m[7] !== r) { + const v = +m[7]; + a = 255 & (m[8] ? p2b(v) : v * 255); + } + r = +m[1]; + g = +m[3]; + b = +m[5]; + r = 255 & (m[2] ? p2b(r) : r); + g = 255 & (m[4] ? p2b(g) : g); + b = 255 & (m[6] ? p2b(b) : b); + return { + r: r, + g: g, + b: b, + a: a + }; +} +function rgbString(v) { + return v && ( + v.a < 255 + ? `rgba(${v.r}, ${v.g}, ${v.b}, ${b2n(v.a)})` + : `rgb(${v.r}, ${v.g}, ${v.b})` + ); +} +const HUE_RE = /^(hsla?|hwb|hsv)\(\s*([-+.e\d]+)(?:deg)?[\s,]+([-+.e\d]+)%[\s,]+([-+.e\d]+)%(?:[\s,]+([-+.e\d]+)(%)?)?\s*\)$/; +function hsl2rgbn(h, s, l) { + const a = s * Math.min(l, 1 - l); + const f = (n, k = (n + h / 30) % 12) => l - a * Math.max(Math.min(k - 3, 9 - k, 1), -1); + return [f(0), f(8), f(4)]; +} +function hsv2rgbn(h, s, v) { + const f = (n, k = (n + h / 60) % 6) => v - v * s * Math.max(Math.min(k, 4 - k, 1), 0); + return [f(5), f(3), f(1)]; +} +function hwb2rgbn(h, w, b) { + const rgb = hsl2rgbn(h, 1, 0.5); + let i; + if (w + b > 1) { + i = 1 / (w + b); + w *= i; + b *= i; + } + for (i = 0; i < 3; i++) { + rgb[i] *= 1 - w - b; + rgb[i] += w; + } + return rgb; +} +function rgb2hsl(v) { + const range = 255; + const r = v.r / range; + const g = v.g / range; + const b = v.b / range; + const max = Math.max(r, g, b); + const min = Math.min(r, g, b); + const l = (max + min) / 2; + let h, s, d; + if (max !== min) { + d = max - min; + s = l > 0.5 ? d / (2 - max - min) : d / (max + min); + h = max === r + ? ((g - b) / d) + (g < b ? 6 : 0) + : max === g + ? (b - r) / d + 2 + : (r - g) / d + 4; + h = h * 60 + 0.5; + } + return [h | 0, s || 0, l]; +} +function calln(f, a, b, c) { + return ( + Array.isArray(a) + ? f(a[0], a[1], a[2]) + : f(a, b, c) + ).map(n2b); +} +function hsl2rgb(h, s, l) { + return calln(hsl2rgbn, h, s, l); +} +function hwb2rgb(h, w, b) { + return calln(hwb2rgbn, h, w, b); +} +function hsv2rgb(h, s, v) { + return calln(hsv2rgbn, h, s, v); +} +function hue(h) { + return (h % 360 + 360) % 360; +} +function hueParse(str) { + const m = HUE_RE.exec(str); + let a = 255; + let v; + if (!m) { + return; + } + if (m[5] !== v) { + a = m[6] ? p2b(+m[5]) : n2b(+m[5]); + } + const h = hue(+m[2]); + const p1 = +m[3] / 100; + const p2 = +m[4] / 100; + if (m[1] === 'hwb') { + v = hwb2rgb(h, p1, p2); + } else if (m[1] === 'hsv') { + v = hsv2rgb(h, p1, p2); + } else { + v = hsl2rgb(h, p1, p2); + } + return { + r: v[0], + g: v[1], + b: v[2], + a: a + }; +} +function rotate(v, deg) { + var h = rgb2hsl(v); + h[0] = hue(h[0] + deg); + h = hsl2rgb(h); + v.r = h[0]; + v.g = h[1]; + v.b = h[2]; +} +function hslString(v) { + if (!v) { + return; + } + const a = rgb2hsl(v); + const h = a[0]; + const s = n2p(a[1]); + const l = n2p(a[2]); + return v.a < 255 + ? `hsla(${h}, ${s}%, ${l}%, ${b2n(v.a)})` + : `hsl(${h}, ${s}%, ${l}%)`; +} +const map$1$1 = { + x: 'dark', + Z: 'light', + Y: 're', + X: 'blu', + W: 'gr', + V: 'medium', + U: 'slate', + A: 'ee', + T: 'ol', + S: 'or', + B: 'ra', + C: 'lateg', + D: 'ights', + R: 'in', + Q: 'turquois', + E: 'hi', + P: 'ro', + O: 'al', + N: 'le', + M: 'de', + L: 'yello', + F: 'en', + K: 'ch', + G: 'arks', + H: 'ea', + I: 'ightg', + J: 'wh' +}; +const names = { + OiceXe: 'f0f8ff', + antiquewEte: 'faebd7', + aqua: 'ffff', + aquamarRe: '7fffd4', + azuY: 'f0ffff', + beige: 'f5f5dc', + bisque: 'ffe4c4', + black: '0', + blanKedOmond: 'ffebcd', + Xe: 'ff', + XeviTet: '8a2be2', + bPwn: 'a52a2a', + burlywood: 'deb887', + caMtXe: '5f9ea0', + KartYuse: '7fff00', + KocTate: 'd2691e', + cSO: 'ff7f50', + cSnflowerXe: '6495ed', + cSnsilk: 'fff8dc', + crimson: 'dc143c', + cyan: 'ffff', + xXe: '8b', + xcyan: '8b8b', + xgTMnPd: 'b8860b', + xWay: 'a9a9a9', + xgYF: '6400', + xgYy: 'a9a9a9', + xkhaki: 'bdb76b', + xmagFta: '8b008b', + xTivegYF: '556b2f', + xSange: 'ff8c00', + xScEd: '9932cc', + xYd: '8b0000', + xsOmon: 'e9967a', + xsHgYF: '8fbc8f', + xUXe: '483d8b', + xUWay: '2f4f4f', + xUgYy: '2f4f4f', + xQe: 'ced1', + xviTet: '9400d3', + dAppRk: 'ff1493', + dApskyXe: 'bfff', + dimWay: '696969', + dimgYy: '696969', + dodgerXe: '1e90ff', + fiYbrick: 'b22222', + flSOwEte: 'fffaf0', + foYstWAn: '228b22', + fuKsia: 'ff00ff', + gaRsbSo: 'dcdcdc', + ghostwEte: 'f8f8ff', + gTd: 'ffd700', + gTMnPd: 'daa520', + Way: '808080', + gYF: '8000', + gYFLw: 'adff2f', + gYy: '808080', + honeyMw: 'f0fff0', + hotpRk: 'ff69b4', + RdianYd: 'cd5c5c', + Rdigo: '4b0082', + ivSy: 'fffff0', + khaki: 'f0e68c', + lavFMr: 'e6e6fa', + lavFMrXsh: 'fff0f5', + lawngYF: '7cfc00', + NmoncEffon: 'fffacd', + ZXe: 'add8e6', + ZcSO: 'f08080', + Zcyan: 'e0ffff', + ZgTMnPdLw: 'fafad2', + ZWay: 'd3d3d3', + ZgYF: '90ee90', + ZgYy: 'd3d3d3', + ZpRk: 'ffb6c1', + ZsOmon: 'ffa07a', + ZsHgYF: '20b2aa', + ZskyXe: '87cefa', + ZUWay: '778899', + ZUgYy: '778899', + ZstAlXe: 'b0c4de', + ZLw: 'ffffe0', + lime: 'ff00', + limegYF: '32cd32', + lRF: 'faf0e6', + magFta: 'ff00ff', + maPon: '800000', + VaquamarRe: '66cdaa', + VXe: 'cd', + VScEd: 'ba55d3', + VpurpN: '9370db', + VsHgYF: '3cb371', + VUXe: '7b68ee', + VsprRggYF: 'fa9a', + VQe: '48d1cc', + VviTetYd: 'c71585', + midnightXe: '191970', + mRtcYam: 'f5fffa', + mistyPse: 'ffe4e1', + moccasR: 'ffe4b5', + navajowEte: 'ffdead', + navy: '80', + Tdlace: 'fdf5e6', + Tive: '808000', + TivedBb: '6b8e23', + Sange: 'ffa500', + SangeYd: 'ff4500', + ScEd: 'da70d6', + pOegTMnPd: 'eee8aa', + pOegYF: '98fb98', + pOeQe: 'afeeee', + pOeviTetYd: 'db7093', + papayawEp: 'ffefd5', + pHKpuff: 'ffdab9', + peru: 'cd853f', + pRk: 'ffc0cb', + plum: 'dda0dd', + powMrXe: 'b0e0e6', + purpN: '800080', + YbeccapurpN: '663399', + Yd: 'ff0000', + Psybrown: 'bc8f8f', + PyOXe: '4169e1', + saddNbPwn: '8b4513', + sOmon: 'fa8072', + sandybPwn: 'f4a460', + sHgYF: '2e8b57', + sHshell: 'fff5ee', + siFna: 'a0522d', + silver: 'c0c0c0', + skyXe: '87ceeb', + UXe: '6a5acd', + UWay: '708090', + UgYy: '708090', + snow: 'fffafa', + sprRggYF: 'ff7f', + stAlXe: '4682b4', + tan: 'd2b48c', + teO: '8080', + tEstN: 'd8bfd8', + tomato: 'ff6347', + Qe: '40e0d0', + viTet: 'ee82ee', + JHt: 'f5deb3', + wEte: 'ffffff', + wEtesmoke: 'f5f5f5', + Lw: 'ffff00', + LwgYF: '9acd32' +}; +function unpack() { + const unpacked = {}; + const keys = Object.keys(names); + const tkeys = Object.keys(map$1$1); + let i, j, k, ok, nk; + for (i = 0; i < keys.length; i++) { + ok = nk = keys[i]; + for (j = 0; j < tkeys.length; j++) { + k = tkeys[j]; + nk = nk.replace(k, map$1$1[k]); + } + k = parseInt(names[ok], 16); + unpacked[nk] = [k >> 16 & 0xFF, k >> 8 & 0xFF, k & 0xFF]; + } + return unpacked; +} +let names$1; +function nameParse(str) { + if (!names$1) { + names$1 = unpack(); + names$1.transparent = [0, 0, 0, 0]; + } + const a = names$1[str.toLowerCase()]; + return a && { + r: a[0], + g: a[1], + b: a[2], + a: a.length === 4 ? a[3] : 255 + }; +} +function modHSL(v, i, ratio) { + if (v) { + let tmp = rgb2hsl(v); + tmp[i] = Math.max(0, Math.min(tmp[i] + tmp[i] * ratio, i === 0 ? 360 : 1)); + tmp = hsl2rgb(tmp); + v.r = tmp[0]; + v.g = tmp[1]; + v.b = tmp[2]; + } +} +function clone$1(v, proto) { + return v ? Object.assign(proto || {}, v) : v; +} +function fromObject(input) { + var v = {r: 0, g: 0, b: 0, a: 255}; + if (Array.isArray(input)) { + if (input.length >= 3) { + v = {r: input[0], g: input[1], b: input[2], a: 255}; + if (input.length > 3) { + v.a = n2b(input[3]); + } + } + } else { + v = clone$1(input, {r: 0, g: 0, b: 0, a: 1}); + v.a = n2b(v.a); + } + return v; +} +function functionParse(str) { + if (str.charAt(0) === 'r') { + return rgbParse(str); + } + return hueParse(str); +} +class Color { + constructor(input) { + if (input instanceof Color) { + return input; + } + const type = typeof input; + let v; + if (type === 'object') { + v = fromObject(input); + } else if (type === 'string') { + v = hexParse(input) || nameParse(input) || functionParse(input); + } + this._rgb = v; + this._valid = !!v; + } + get valid() { + return this._valid; + } + get rgb() { + var v = clone$1(this._rgb); + if (v) { + v.a = b2n(v.a); + } + return v; + } + set rgb(obj) { + this._rgb = fromObject(obj); + } + rgbString() { + return this._valid ? rgbString(this._rgb) : this._rgb; + } + hexString() { + return this._valid ? hexString(this._rgb) : this._rgb; + } + hslString() { + return this._valid ? hslString(this._rgb) : this._rgb; + } + mix(color, weight) { + const me = this; + if (color) { + const c1 = me.rgb; + const c2 = color.rgb; + let w2; + const p = weight === w2 ? 0.5 : weight; + const w = 2 * p - 1; + const a = c1.a - c2.a; + const w1 = ((w * a === -1 ? w : (w + a) / (1 + w * a)) + 1) / 2.0; + w2 = 1 - w1; + c1.r = 0xFF & w1 * c1.r + w2 * c2.r + 0.5; + c1.g = 0xFF & w1 * c1.g + w2 * c2.g + 0.5; + c1.b = 0xFF & w1 * c1.b + w2 * c2.b + 0.5; + c1.a = p * c1.a + (1 - p) * c2.a; + me.rgb = c1; + } + return me; + } + clone() { + return new Color(this.rgb); + } + alpha(a) { + this._rgb.a = n2b(a); + return this; + } + clearer(ratio) { + const rgb = this._rgb; + rgb.a *= 1 - ratio; + return this; + } + greyscale() { + const rgb = this._rgb; + const val = round(rgb.r * 0.3 + rgb.g * 0.59 + rgb.b * 0.11); + rgb.r = rgb.g = rgb.b = val; + return this; + } + opaquer(ratio) { + const rgb = this._rgb; + rgb.a *= 1 + ratio; + return this; + } + negate() { + const v = this._rgb; + v.r = 255 - v.r; + v.g = 255 - v.g; + v.b = 255 - v.b; + return this; + } + lighten(ratio) { + modHSL(this._rgb, 2, ratio); + return this; + } + darken(ratio) { + modHSL(this._rgb, 2, -ratio); + return this; + } + saturate(ratio) { + modHSL(this._rgb, 1, ratio); + return this; + } + desaturate(ratio) { + modHSL(this._rgb, 1, -ratio); + return this; + } + rotate(deg) { + rotate(this._rgb, deg); + return this; + } +} +function index_esm(input) { + return new Color(input); +} + +const isPatternOrGradient = (value) => value instanceof CanvasGradient || value instanceof CanvasPattern; +function color(value) { + return isPatternOrGradient(value) ? value : index_esm(value); +} +function getHoverColor(value) { + return isPatternOrGradient(value) + ? value + : index_esm(value).saturate(0.5).darken(0.1).hexString(); +} + +function noop() {} +const uid = (function() { + let id = 0; + return function() { + return id++; + }; +}()); +function isNullOrUndef(value) { + return value === null || typeof value === 'undefined'; +} +function isArray(value) { + if (Array.isArray && Array.isArray(value)) { + return true; + } + const type = Object.prototype.toString.call(value); + if (type.substr(0, 7) === '[object' && type.substr(-6) === 'Array]') { + return true; + } + return false; +} +function isObject(value) { + return value !== null && Object.prototype.toString.call(value) === '[object Object]'; +} +const isNumberFinite = (value) => (typeof value === 'number' || value instanceof Number) && isFinite(+value); +function finiteOrDefault(value, defaultValue) { + return isNumberFinite(value) ? value : defaultValue; +} +function valueOrDefault(value, defaultValue) { + return typeof value === 'undefined' ? defaultValue : value; +} +const toPercentage = (value, dimension) => + typeof value === 'string' && value.endsWith('%') ? + parseFloat(value) / 100 + : value / dimension; +const toDimension = (value, dimension) => + typeof value === 'string' && value.endsWith('%') ? + parseFloat(value) / 100 * dimension + : +value; +function callback(fn, args, thisArg) { + if (fn && typeof fn.call === 'function') { + return fn.apply(thisArg, args); + } +} +function each(loopable, fn, thisArg, reverse) { + let i, len, keys; + if (isArray(loopable)) { + len = loopable.length; + if (reverse) { + for (i = len - 1; i >= 0; i--) { + fn.call(thisArg, loopable[i], i); + } + } else { + for (i = 0; i < len; i++) { + fn.call(thisArg, loopable[i], i); + } + } + } else if (isObject(loopable)) { + keys = Object.keys(loopable); + len = keys.length; + for (i = 0; i < len; i++) { + fn.call(thisArg, loopable[keys[i]], keys[i]); + } + } +} +function _elementsEqual(a0, a1) { + let i, ilen, v0, v1; + if (!a0 || !a1 || a0.length !== a1.length) { + return false; + } + for (i = 0, ilen = a0.length; i < ilen; ++i) { + v0 = a0[i]; + v1 = a1[i]; + if (v0.datasetIndex !== v1.datasetIndex || v0.index !== v1.index) { + return false; + } + } + return true; +} +function clone(source) { + if (isArray(source)) { + return source.map(clone); + } + if (isObject(source)) { + const target = Object.create(null); + const keys = Object.keys(source); + const klen = keys.length; + let k = 0; + for (; k < klen; ++k) { + target[keys[k]] = clone(source[keys[k]]); + } + return target; + } + return source; +} +function isValidKey(key) { + return ['__proto__', 'prototype', 'constructor'].indexOf(key) === -1; +} +function _merger(key, target, source, options) { + if (!isValidKey(key)) { + return; + } + const tval = target[key]; + const sval = source[key]; + if (isObject(tval) && isObject(sval)) { + merge(tval, sval, options); + } else { + target[key] = clone(sval); + } +} +function merge(target, source, options) { + const sources = isArray(source) ? source : [source]; + const ilen = sources.length; + if (!isObject(target)) { + return target; + } + options = options || {}; + const merger = options.merger || _merger; + for (let i = 0; i < ilen; ++i) { + source = sources[i]; + if (!isObject(source)) { + continue; + } + const keys = Object.keys(source); + for (let k = 0, klen = keys.length; k < klen; ++k) { + merger(keys[k], target, source, options); + } + } + return target; +} +function mergeIf(target, source) { + return merge(target, source, {merger: _mergerIf}); +} +function _mergerIf(key, target, source) { + if (!isValidKey(key)) { + return; + } + const tval = target[key]; + const sval = source[key]; + if (isObject(tval) && isObject(sval)) { + mergeIf(tval, sval); + } else if (!Object.prototype.hasOwnProperty.call(target, key)) { + target[key] = clone(sval); + } +} +function _deprecated(scope, value, previous, current) { + if (value !== undefined) { + console.warn(scope + ': "' + previous + + '" is deprecated. Please use "' + current + '" instead'); + } +} +const emptyString = ''; +const dot = '.'; +function indexOfDotOrLength(key, start) { + const idx = key.indexOf(dot, start); + return idx === -1 ? key.length : idx; +} +function resolveObjectKey(obj, key) { + if (key === emptyString) { + return obj; + } + let pos = 0; + let idx = indexOfDotOrLength(key, pos); + while (obj && idx > pos) { + obj = obj[key.substr(pos, idx - pos)]; + pos = idx + 1; + idx = indexOfDotOrLength(key, pos); + } + return obj; +} +function _capitalize(str) { + return str.charAt(0).toUpperCase() + str.slice(1); +} +const defined = (value) => typeof value !== 'undefined'; +const isFunction = (value) => typeof value === 'function'; +const setsEqual = (a, b) => { + if (a.size !== b.size) { + return false; + } + for (const item of a) { + if (!b.has(item)) { + return false; + } + } + return true; +}; +function _isClickEvent(e) { + return e.type === 'mouseup' || e.type === 'click' || e.type === 'contextmenu'; +} + +const overrides = Object.create(null); +const descriptors = Object.create(null); +function getScope$1(node, key) { + if (!key) { + return node; + } + const keys = key.split('.'); + for (let i = 0, n = keys.length; i < n; ++i) { + const k = keys[i]; + node = node[k] || (node[k] = Object.create(null)); + } + return node; +} +function set(root, scope, values) { + if (typeof scope === 'string') { + return merge(getScope$1(root, scope), values); + } + return merge(getScope$1(root, ''), scope); +} +class Defaults { + constructor(_descriptors) { + this.animation = undefined; + this.backgroundColor = 'rgba(0,0,0,0.1)'; + this.borderColor = 'rgba(0,0,0,0.1)'; + this.color = '#666'; + this.datasets = {}; + this.devicePixelRatio = (context) => context.chart.platform.getDevicePixelRatio(); + this.elements = {}; + this.events = [ + 'mousemove', + 'mouseout', + 'click', + 'touchstart', + 'touchmove' + ]; + this.font = { + family: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif", + size: 12, + style: 'normal', + lineHeight: 1.2, + weight: null + }; + this.hover = {}; + this.hoverBackgroundColor = (ctx, options) => getHoverColor(options.backgroundColor); + this.hoverBorderColor = (ctx, options) => getHoverColor(options.borderColor); + this.hoverColor = (ctx, options) => getHoverColor(options.color); + this.indexAxis = 'x'; + this.interaction = { + mode: 'nearest', + intersect: true + }; + this.maintainAspectRatio = true; + this.onHover = null; + this.onClick = null; + this.parsing = true; + this.plugins = {}; + this.responsive = true; + this.scale = undefined; + this.scales = {}; + this.showLine = true; + this.drawActiveElementsOnTop = true; + this.describe(_descriptors); + } + set(scope, values) { + return set(this, scope, values); + } + get(scope) { + return getScope$1(this, scope); + } + describe(scope, values) { + return set(descriptors, scope, values); + } + override(scope, values) { + return set(overrides, scope, values); + } + route(scope, name, targetScope, targetName) { + const scopeObject = getScope$1(this, scope); + const targetScopeObject = getScope$1(this, targetScope); + const privateName = '_' + name; + Object.defineProperties(scopeObject, { + [privateName]: { + value: scopeObject[name], + writable: true + }, + [name]: { + enumerable: true, + get() { + const local = this[privateName]; + const target = targetScopeObject[targetName]; + if (isObject(local)) { + return Object.assign({}, target, local); + } + return valueOrDefault(local, target); + }, + set(value) { + this[privateName] = value; + } + } + }); + } +} +var defaults = new Defaults({ + _scriptable: (name) => !name.startsWith('on'), + _indexable: (name) => name !== 'events', + hover: { + _fallback: 'interaction' + }, + interaction: { + _scriptable: false, + _indexable: false, + } +}); + +const PI = Math.PI; +const TAU = 2 * PI; +const PITAU = TAU + PI; +const INFINITY = Number.POSITIVE_INFINITY; +const RAD_PER_DEG = PI / 180; +const HALF_PI = PI / 2; +const QUARTER_PI = PI / 4; +const TWO_THIRDS_PI = PI * 2 / 3; +const log10 = Math.log10; +const sign = Math.sign; +function niceNum(range) { + const roundedRange = Math.round(range); + range = almostEquals(range, roundedRange, range / 1000) ? roundedRange : range; + const niceRange = Math.pow(10, Math.floor(log10(range))); + const fraction = range / niceRange; + const niceFraction = fraction <= 1 ? 1 : fraction <= 2 ? 2 : fraction <= 5 ? 5 : 10; + return niceFraction * niceRange; +} +function _factorize(value) { + const result = []; + const sqrt = Math.sqrt(value); + let i; + for (i = 1; i < sqrt; i++) { + if (value % i === 0) { + result.push(i); + result.push(value / i); + } + } + if (sqrt === (sqrt | 0)) { + result.push(sqrt); + } + result.sort((a, b) => a - b).pop(); + return result; +} +function isNumber(n) { + return !isNaN(parseFloat(n)) && isFinite(n); +} +function almostEquals(x, y, epsilon) { + return Math.abs(x - y) < epsilon; +} +function almostWhole(x, epsilon) { + const rounded = Math.round(x); + return ((rounded - epsilon) <= x) && ((rounded + epsilon) >= x); +} +function _setMinAndMaxByKey(array, target, property) { + let i, ilen, value; + for (i = 0, ilen = array.length; i < ilen; i++) { + value = array[i][property]; + if (!isNaN(value)) { + target.min = Math.min(target.min, value); + target.max = Math.max(target.max, value); + } + } +} +function toRadians(degrees) { + return degrees * (PI / 180); +} +function toDegrees(radians) { + return radians * (180 / PI); +} +function _decimalPlaces(x) { + if (!isNumberFinite(x)) { + return; + } + let e = 1; + let p = 0; + while (Math.round(x * e) / e !== x) { + e *= 10; + p++; + } + return p; +} +function getAngleFromPoint(centrePoint, anglePoint) { + const distanceFromXCenter = anglePoint.x - centrePoint.x; + const distanceFromYCenter = anglePoint.y - centrePoint.y; + const radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter); + let angle = Math.atan2(distanceFromYCenter, distanceFromXCenter); + if (angle < (-0.5 * PI)) { + angle += TAU; + } + return { + angle, + distance: radialDistanceFromCenter + }; +} +function distanceBetweenPoints(pt1, pt2) { + return Math.sqrt(Math.pow(pt2.x - pt1.x, 2) + Math.pow(pt2.y - pt1.y, 2)); +} +function _angleDiff(a, b) { + return (a - b + PITAU) % TAU - PI; +} +function _normalizeAngle(a) { + return (a % TAU + TAU) % TAU; +} +function _angleBetween(angle, start, end, sameAngleIsFullCircle) { + const a = _normalizeAngle(angle); + const s = _normalizeAngle(start); + const e = _normalizeAngle(end); + const angleToStart = _normalizeAngle(s - a); + const angleToEnd = _normalizeAngle(e - a); + const startToAngle = _normalizeAngle(a - s); + const endToAngle = _normalizeAngle(a - e); + return a === s || a === e || (sameAngleIsFullCircle && s === e) + || (angleToStart > angleToEnd && startToAngle < endToAngle); +} +function _limitValue(value, min, max) { + return Math.max(min, Math.min(max, value)); +} +function _int16Range(value) { + return _limitValue(value, -32768, 32767); +} +function _isBetween(value, start, end, epsilon = 1e-6) { + return value >= Math.min(start, end) - epsilon && value <= Math.max(start, end) + epsilon; +} + +function toFontString(font) { + if (!font || isNullOrUndef(font.size) || isNullOrUndef(font.family)) { + return null; + } + return (font.style ? font.style + ' ' : '') + + (font.weight ? font.weight + ' ' : '') + + font.size + 'px ' + + font.family; +} +function _measureText(ctx, data, gc, longest, string) { + let textWidth = data[string]; + if (!textWidth) { + textWidth = data[string] = ctx.measureText(string).width; + gc.push(string); + } + if (textWidth > longest) { + longest = textWidth; + } + return longest; +} +function _longestText(ctx, font, arrayOfThings, cache) { + cache = cache || {}; + let data = cache.data = cache.data || {}; + let gc = cache.garbageCollect = cache.garbageCollect || []; + if (cache.font !== font) { + data = cache.data = {}; + gc = cache.garbageCollect = []; + cache.font = font; + } + ctx.save(); + ctx.font = font; + let longest = 0; + const ilen = arrayOfThings.length; + let i, j, jlen, thing, nestedThing; + for (i = 0; i < ilen; i++) { + thing = arrayOfThings[i]; + if (thing !== undefined && thing !== null && isArray(thing) !== true) { + longest = _measureText(ctx, data, gc, longest, thing); + } else if (isArray(thing)) { + for (j = 0, jlen = thing.length; j < jlen; j++) { + nestedThing = thing[j]; + if (nestedThing !== undefined && nestedThing !== null && !isArray(nestedThing)) { + longest = _measureText(ctx, data, gc, longest, nestedThing); + } + } + } + } + ctx.restore(); + const gcLen = gc.length / 2; + if (gcLen > arrayOfThings.length) { + for (i = 0; i < gcLen; i++) { + delete data[gc[i]]; + } + gc.splice(0, gcLen); + } + return longest; +} +function _alignPixel(chart, pixel, width) { + const devicePixelRatio = chart.currentDevicePixelRatio; + const halfWidth = width !== 0 ? Math.max(width / 2, 0.5) : 0; + return Math.round((pixel - halfWidth) * devicePixelRatio) / devicePixelRatio + halfWidth; +} +function clearCanvas(canvas, ctx) { + ctx = ctx || canvas.getContext('2d'); + ctx.save(); + ctx.resetTransform(); + ctx.clearRect(0, 0, canvas.width, canvas.height); + ctx.restore(); +} +function drawPoint(ctx, options, x, y) { + let type, xOffset, yOffset, size, cornerRadius; + const style = options.pointStyle; + const rotation = options.rotation; + const radius = options.radius; + let rad = (rotation || 0) * RAD_PER_DEG; + if (style && typeof style === 'object') { + type = style.toString(); + if (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') { + ctx.save(); + ctx.translate(x, y); + ctx.rotate(rad); + ctx.drawImage(style, -style.width / 2, -style.height / 2, style.width, style.height); + ctx.restore(); + return; + } + } + if (isNaN(radius) || radius <= 0) { + return; + } + ctx.beginPath(); + switch (style) { + default: + ctx.arc(x, y, radius, 0, TAU); + ctx.closePath(); + break; + case 'triangle': + ctx.moveTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius); + rad += TWO_THIRDS_PI; + ctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius); + rad += TWO_THIRDS_PI; + ctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius); + ctx.closePath(); + break; + case 'rectRounded': + cornerRadius = radius * 0.516; + size = radius - cornerRadius; + xOffset = Math.cos(rad + QUARTER_PI) * size; + yOffset = Math.sin(rad + QUARTER_PI) * size; + ctx.arc(x - xOffset, y - yOffset, cornerRadius, rad - PI, rad - HALF_PI); + ctx.arc(x + yOffset, y - xOffset, cornerRadius, rad - HALF_PI, rad); + ctx.arc(x + xOffset, y + yOffset, cornerRadius, rad, rad + HALF_PI); + ctx.arc(x - yOffset, y + xOffset, cornerRadius, rad + HALF_PI, rad + PI); + ctx.closePath(); + break; + case 'rect': + if (!rotation) { + size = Math.SQRT1_2 * radius; + ctx.rect(x - size, y - size, 2 * size, 2 * size); + break; + } + rad += QUARTER_PI; + case 'rectRot': + xOffset = Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + ctx.moveTo(x - xOffset, y - yOffset); + ctx.lineTo(x + yOffset, y - xOffset); + ctx.lineTo(x + xOffset, y + yOffset); + ctx.lineTo(x - yOffset, y + xOffset); + ctx.closePath(); + break; + case 'crossRot': + rad += QUARTER_PI; + case 'cross': + xOffset = Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + ctx.moveTo(x - xOffset, y - yOffset); + ctx.lineTo(x + xOffset, y + yOffset); + ctx.moveTo(x + yOffset, y - xOffset); + ctx.lineTo(x - yOffset, y + xOffset); + break; + case 'star': + xOffset = Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + ctx.moveTo(x - xOffset, y - yOffset); + ctx.lineTo(x + xOffset, y + yOffset); + ctx.moveTo(x + yOffset, y - xOffset); + ctx.lineTo(x - yOffset, y + xOffset); + rad += QUARTER_PI; + xOffset = Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + ctx.moveTo(x - xOffset, y - yOffset); + ctx.lineTo(x + xOffset, y + yOffset); + ctx.moveTo(x + yOffset, y - xOffset); + ctx.lineTo(x - yOffset, y + xOffset); + break; + case 'line': + xOffset = Math.cos(rad) * radius; + yOffset = Math.sin(rad) * radius; + ctx.moveTo(x - xOffset, y - yOffset); + ctx.lineTo(x + xOffset, y + yOffset); + break; + case 'dash': + ctx.moveTo(x, y); + ctx.lineTo(x + Math.cos(rad) * radius, y + Math.sin(rad) * radius); + break; + } + ctx.fill(); + if (options.borderWidth > 0) { + ctx.stroke(); + } +} +function _isPointInArea(point, area, margin) { + margin = margin || 0.5; + return !area || (point && point.x > area.left - margin && point.x < area.right + margin && + point.y > area.top - margin && point.y < area.bottom + margin); +} +function clipArea(ctx, area) { + ctx.save(); + ctx.beginPath(); + ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top); + ctx.clip(); +} +function unclipArea(ctx) { + ctx.restore(); +} +function _steppedLineTo(ctx, previous, target, flip, mode) { + if (!previous) { + return ctx.lineTo(target.x, target.y); + } + if (mode === 'middle') { + const midpoint = (previous.x + target.x) / 2.0; + ctx.lineTo(midpoint, previous.y); + ctx.lineTo(midpoint, target.y); + } else if (mode === 'after' !== !!flip) { + ctx.lineTo(previous.x, target.y); + } else { + ctx.lineTo(target.x, previous.y); + } + ctx.lineTo(target.x, target.y); +} +function _bezierCurveTo(ctx, previous, target, flip) { + if (!previous) { + return ctx.lineTo(target.x, target.y); + } + ctx.bezierCurveTo( + flip ? previous.cp1x : previous.cp2x, + flip ? previous.cp1y : previous.cp2y, + flip ? target.cp2x : target.cp1x, + flip ? target.cp2y : target.cp1y, + target.x, + target.y); +} +function renderText(ctx, text, x, y, font, opts = {}) { + const lines = isArray(text) ? text : [text]; + const stroke = opts.strokeWidth > 0 && opts.strokeColor !== ''; + let i, line; + ctx.save(); + ctx.font = font.string; + setRenderOpts(ctx, opts); + for (i = 0; i < lines.length; ++i) { + line = lines[i]; + if (stroke) { + if (opts.strokeColor) { + ctx.strokeStyle = opts.strokeColor; + } + if (!isNullOrUndef(opts.strokeWidth)) { + ctx.lineWidth = opts.strokeWidth; + } + ctx.strokeText(line, x, y, opts.maxWidth); + } + ctx.fillText(line, x, y, opts.maxWidth); + decorateText(ctx, x, y, line, opts); + y += font.lineHeight; + } + ctx.restore(); +} +function setRenderOpts(ctx, opts) { + if (opts.translation) { + ctx.translate(opts.translation[0], opts.translation[1]); + } + if (!isNullOrUndef(opts.rotation)) { + ctx.rotate(opts.rotation); + } + if (opts.color) { + ctx.fillStyle = opts.color; + } + if (opts.textAlign) { + ctx.textAlign = opts.textAlign; + } + if (opts.textBaseline) { + ctx.textBaseline = opts.textBaseline; + } +} +function decorateText(ctx, x, y, line, opts) { + if (opts.strikethrough || opts.underline) { + const metrics = ctx.measureText(line); + const left = x - metrics.actualBoundingBoxLeft; + const right = x + metrics.actualBoundingBoxRight; + const top = y - metrics.actualBoundingBoxAscent; + const bottom = y + metrics.actualBoundingBoxDescent; + const yDecoration = opts.strikethrough ? (top + bottom) / 2 : bottom; + ctx.strokeStyle = ctx.fillStyle; + ctx.beginPath(); + ctx.lineWidth = opts.decorationWidth || 2; + ctx.moveTo(left, yDecoration); + ctx.lineTo(right, yDecoration); + ctx.stroke(); + } +} +function addRoundedRectPath(ctx, rect) { + const {x, y, w, h, radius} = rect; + ctx.arc(x + radius.topLeft, y + radius.topLeft, radius.topLeft, -HALF_PI, PI, true); + ctx.lineTo(x, y + h - radius.bottomLeft); + ctx.arc(x + radius.bottomLeft, y + h - radius.bottomLeft, radius.bottomLeft, PI, HALF_PI, true); + ctx.lineTo(x + w - radius.bottomRight, y + h); + ctx.arc(x + w - radius.bottomRight, y + h - radius.bottomRight, radius.bottomRight, HALF_PI, 0, true); + ctx.lineTo(x + w, y + radius.topRight); + ctx.arc(x + w - radius.topRight, y + radius.topRight, radius.topRight, 0, -HALF_PI, true); + ctx.lineTo(x + radius.topLeft, y); +} + +function _lookup(table, value, cmp) { + cmp = cmp || ((index) => table[index] < value); + let hi = table.length - 1; + let lo = 0; + let mid; + while (hi - lo > 1) { + mid = (lo + hi) >> 1; + if (cmp(mid)) { + lo = mid; + } else { + hi = mid; + } + } + return {lo, hi}; +} +const _lookupByKey = (table, key, value) => + _lookup(table, value, index => table[index][key] < value); +const _rlookupByKey = (table, key, value) => + _lookup(table, value, index => table[index][key] >= value); +function _filterBetween(values, min, max) { + let start = 0; + let end = values.length; + while (start < end && values[start] < min) { + start++; + } + while (end > start && values[end - 1] > max) { + end--; + } + return start > 0 || end < values.length + ? values.slice(start, end) + : values; +} +const arrayEvents = ['push', 'pop', 'shift', 'splice', 'unshift']; +function listenArrayEvents(array, listener) { + if (array._chartjs) { + array._chartjs.listeners.push(listener); + return; + } + Object.defineProperty(array, '_chartjs', { + configurable: true, + enumerable: false, + value: { + listeners: [listener] + } + }); + arrayEvents.forEach((key) => { + const method = '_onData' + _capitalize(key); + const base = array[key]; + Object.defineProperty(array, key, { + configurable: true, + enumerable: false, + value(...args) { + const res = base.apply(this, args); + array._chartjs.listeners.forEach((object) => { + if (typeof object[method] === 'function') { + object[method](...args); + } + }); + return res; + } + }); + }); +} +function unlistenArrayEvents(array, listener) { + const stub = array._chartjs; + if (!stub) { + return; + } + const listeners = stub.listeners; + const index = listeners.indexOf(listener); + if (index !== -1) { + listeners.splice(index, 1); + } + if (listeners.length > 0) { + return; + } + arrayEvents.forEach((key) => { + delete array[key]; + }); + delete array._chartjs; +} +function _arrayUnique(items) { + const set = new Set(); + let i, ilen; + for (i = 0, ilen = items.length; i < ilen; ++i) { + set.add(items[i]); + } + if (set.size === ilen) { + return items; + } + return Array.from(set); +} + +function _isDomSupported() { + return typeof window !== 'undefined' && typeof document !== 'undefined'; +} +function _getParentNode(domNode) { + let parent = domNode.parentNode; + if (parent && parent.toString() === '[object ShadowRoot]') { + parent = parent.host; + } + return parent; +} +function parseMaxStyle(styleValue, node, parentProperty) { + let valueInPixels; + if (typeof styleValue === 'string') { + valueInPixels = parseInt(styleValue, 10); + if (styleValue.indexOf('%') !== -1) { + valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty]; + } + } else { + valueInPixels = styleValue; + } + return valueInPixels; +} +const getComputedStyle = (element) => window.getComputedStyle(element, null); +function getStyle(el, property) { + return getComputedStyle(el).getPropertyValue(property); +} +const positions = ['top', 'right', 'bottom', 'left']; +function getPositionedStyle(styles, style, suffix) { + const result = {}; + suffix = suffix ? '-' + suffix : ''; + for (let i = 0; i < 4; i++) { + const pos = positions[i]; + result[pos] = parseFloat(styles[style + '-' + pos + suffix]) || 0; + } + result.width = result.left + result.right; + result.height = result.top + result.bottom; + return result; +} +const useOffsetPos = (x, y, target) => (x > 0 || y > 0) && (!target || !target.shadowRoot); +function getCanvasPosition(evt, canvas) { + const e = evt.native || evt; + const touches = e.touches; + const source = touches && touches.length ? touches[0] : e; + const {offsetX, offsetY} = source; + let box = false; + let x, y; + if (useOffsetPos(offsetX, offsetY, e.target)) { + x = offsetX; + y = offsetY; + } else { + const rect = canvas.getBoundingClientRect(); + x = source.clientX - rect.left; + y = source.clientY - rect.top; + box = true; + } + return {x, y, box}; +} +function getRelativePosition$1(evt, chart) { + const {canvas, currentDevicePixelRatio} = chart; + const style = getComputedStyle(canvas); + const borderBox = style.boxSizing === 'border-box'; + const paddings = getPositionedStyle(style, 'padding'); + const borders = getPositionedStyle(style, 'border', 'width'); + const {x, y, box} = getCanvasPosition(evt, canvas); + const xOffset = paddings.left + (box && borders.left); + const yOffset = paddings.top + (box && borders.top); + let {width, height} = chart; + if (borderBox) { + width -= paddings.width + borders.width; + height -= paddings.height + borders.height; + } + return { + x: Math.round((x - xOffset) / width * canvas.width / currentDevicePixelRatio), + y: Math.round((y - yOffset) / height * canvas.height / currentDevicePixelRatio) + }; +} +function getContainerSize(canvas, width, height) { + let maxWidth, maxHeight; + if (width === undefined || height === undefined) { + const container = _getParentNode(canvas); + if (!container) { + width = canvas.clientWidth; + height = canvas.clientHeight; + } else { + const rect = container.getBoundingClientRect(); + const containerStyle = getComputedStyle(container); + const containerBorder = getPositionedStyle(containerStyle, 'border', 'width'); + const containerPadding = getPositionedStyle(containerStyle, 'padding'); + width = rect.width - containerPadding.width - containerBorder.width; + height = rect.height - containerPadding.height - containerBorder.height; + maxWidth = parseMaxStyle(containerStyle.maxWidth, container, 'clientWidth'); + maxHeight = parseMaxStyle(containerStyle.maxHeight, container, 'clientHeight'); + } + } + return { + width, + height, + maxWidth: maxWidth || INFINITY, + maxHeight: maxHeight || INFINITY + }; +} +const round1 = v => Math.round(v * 10) / 10; +function getMaximumSize(canvas, bbWidth, bbHeight, aspectRatio) { + const style = getComputedStyle(canvas); + const margins = getPositionedStyle(style, 'margin'); + const maxWidth = parseMaxStyle(style.maxWidth, canvas, 'clientWidth') || INFINITY; + const maxHeight = parseMaxStyle(style.maxHeight, canvas, 'clientHeight') || INFINITY; + const containerSize = getContainerSize(canvas, bbWidth, bbHeight); + let {width, height} = containerSize; + if (style.boxSizing === 'content-box') { + const borders = getPositionedStyle(style, 'border', 'width'); + const paddings = getPositionedStyle(style, 'padding'); + width -= paddings.width + borders.width; + height -= paddings.height + borders.height; + } + width = Math.max(0, width - margins.width); + height = Math.max(0, aspectRatio ? Math.floor(width / aspectRatio) : height - margins.height); + width = round1(Math.min(width, maxWidth, containerSize.maxWidth)); + height = round1(Math.min(height, maxHeight, containerSize.maxHeight)); + if (width && !height) { + height = round1(width / 2); + } + return { + width, + height + }; +} +function retinaScale(chart, forceRatio, forceStyle) { + const pixelRatio = forceRatio || 1; + const deviceHeight = Math.floor(chart.height * pixelRatio); + const deviceWidth = Math.floor(chart.width * pixelRatio); + chart.height = deviceHeight / pixelRatio; + chart.width = deviceWidth / pixelRatio; + const canvas = chart.canvas; + if (canvas.style && (forceStyle || (!canvas.style.height && !canvas.style.width))) { + canvas.style.height = `${chart.height}px`; + canvas.style.width = `${chart.width}px`; + } + if (chart.currentDevicePixelRatio !== pixelRatio + || canvas.height !== deviceHeight + || canvas.width !== deviceWidth) { + chart.currentDevicePixelRatio = pixelRatio; + canvas.height = deviceHeight; + canvas.width = deviceWidth; + chart.ctx.setTransform(pixelRatio, 0, 0, pixelRatio, 0, 0); + return true; + } + return false; +} +const supportsEventListenerOptions = (function() { + let passiveSupported = false; + try { + const options = { + get passive() { + passiveSupported = true; + return false; + } + }; + window.addEventListener('test', null, options); + window.removeEventListener('test', null, options); + } catch (e) { + } + return passiveSupported; +}()); +function readUsedSize(element, property) { + const value = getStyle(element, property); + const matches = value && value.match(/^(\d+)(\.\d+)?px$/); + return matches ? +matches[1] : undefined; +} + +function getRelativePosition(e, chart) { + if ('native' in e) { + return { + x: e.x, + y: e.y + }; + } + return getRelativePosition$1(e, chart); +} +function evaluateAllVisibleItems(chart, handler) { + const metasets = chart.getSortedVisibleDatasetMetas(); + let index, data, element; + for (let i = 0, ilen = metasets.length; i < ilen; ++i) { + ({index, data} = metasets[i]); + for (let j = 0, jlen = data.length; j < jlen; ++j) { + element = data[j]; + if (!element.skip) { + handler(element, index, j); + } + } + } +} +function binarySearch(metaset, axis, value, intersect) { + const {controller, data, _sorted} = metaset; + const iScale = controller._cachedMeta.iScale; + if (iScale && axis === iScale.axis && axis !== 'r' && _sorted && data.length) { + const lookupMethod = iScale._reversePixels ? _rlookupByKey : _lookupByKey; + if (!intersect) { + return lookupMethod(data, axis, value); + } else if (controller._sharedOptions) { + const el = data[0]; + const range = typeof el.getRange === 'function' && el.getRange(axis); + if (range) { + const start = lookupMethod(data, axis, value - range); + const end = lookupMethod(data, axis, value + range); + return {lo: start.lo, hi: end.hi}; + } + } + } + return {lo: 0, hi: data.length - 1}; +} +function optimizedEvaluateItems(chart, axis, position, handler, intersect) { + const metasets = chart.getSortedVisibleDatasetMetas(); + const value = position[axis]; + for (let i = 0, ilen = metasets.length; i < ilen; ++i) { + const {index, data} = metasets[i]; + const {lo, hi} = binarySearch(metasets[i], axis, value, intersect); + for (let j = lo; j <= hi; ++j) { + const element = data[j]; + if (!element.skip) { + handler(element, index, j); + } + } + } +} +function getDistanceMetricForAxis(axis) { + const useX = axis.indexOf('x') !== -1; + const useY = axis.indexOf('y') !== -1; + return function(pt1, pt2) { + const deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0; + const deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0; + return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2)); + }; +} +function getIntersectItems(chart, position, axis, useFinalPosition) { + const items = []; + if (!_isPointInArea(position, chart.chartArea, chart._minPadding)) { + return items; + } + const evaluationFunc = function(element, datasetIndex, index) { + if (element.inRange(position.x, position.y, useFinalPosition)) { + items.push({element, datasetIndex, index}); + } + }; + optimizedEvaluateItems(chart, axis, position, evaluationFunc, true); + return items; +} +function getNearestRadialItems(chart, position, axis, useFinalPosition) { + let items = []; + function evaluationFunc(element, datasetIndex, index) { + const {startAngle, endAngle} = element.getProps(['startAngle', 'endAngle'], useFinalPosition); + const {angle} = getAngleFromPoint(element, {x: position.x, y: position.y}); + if (_angleBetween(angle, startAngle, endAngle)) { + items.push({element, datasetIndex, index}); + } + } + optimizedEvaluateItems(chart, axis, position, evaluationFunc); + return items; +} +function getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition) { + let items = []; + const distanceMetric = getDistanceMetricForAxis(axis); + let minDistance = Number.POSITIVE_INFINITY; + function evaluationFunc(element, datasetIndex, index) { + const inRange = element.inRange(position.x, position.y, useFinalPosition); + if (intersect && !inRange) { + return; + } + const center = element.getCenterPoint(useFinalPosition); + const pointInArea = _isPointInArea(center, chart.chartArea, chart._minPadding); + if (!pointInArea && !inRange) { + return; + } + const distance = distanceMetric(position, center); + if (distance < minDistance) { + items = [{element, datasetIndex, index}]; + minDistance = distance; + } else if (distance === minDistance) { + items.push({element, datasetIndex, index}); + } + } + optimizedEvaluateItems(chart, axis, position, evaluationFunc); + return items; +} +function getNearestItems(chart, position, axis, intersect, useFinalPosition) { + if (!_isPointInArea(position, chart.chartArea, chart._minPadding)) { + return []; + } + return axis === 'r' && !intersect + ? getNearestRadialItems(chart, position, axis, useFinalPosition) + : getNearestCartesianItems(chart, position, axis, intersect, useFinalPosition); +} +function getAxisItems(chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + const items = []; + const axis = options.axis; + const rangeMethod = axis === 'x' ? 'inXRange' : 'inYRange'; + let intersectsItem = false; + evaluateAllVisibleItems(chart, (element, datasetIndex, index) => { + if (element[rangeMethod](position[axis], useFinalPosition)) { + items.push({element, datasetIndex, index}); + } + if (element.inRange(position.x, position.y, useFinalPosition)) { + intersectsItem = true; + } + }); + if (options.intersect && !intersectsItem) { + return []; + } + return items; +} +var Interaction = { + modes: { + index(chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + const axis = options.axis || 'x'; + const items = options.intersect + ? getIntersectItems(chart, position, axis, useFinalPosition) + : getNearestItems(chart, position, axis, false, useFinalPosition); + const elements = []; + if (!items.length) { + return []; + } + chart.getSortedVisibleDatasetMetas().forEach((meta) => { + const index = items[0].index; + const element = meta.data[index]; + if (element && !element.skip) { + elements.push({element, datasetIndex: meta.index, index}); + } + }); + return elements; + }, + dataset(chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + const axis = options.axis || 'xy'; + let items = options.intersect + ? getIntersectItems(chart, position, axis, useFinalPosition) : + getNearestItems(chart, position, axis, false, useFinalPosition); + if (items.length > 0) { + const datasetIndex = items[0].datasetIndex; + const data = chart.getDatasetMeta(datasetIndex).data; + items = []; + for (let i = 0; i < data.length; ++i) { + items.push({element: data[i], datasetIndex, index: i}); + } + } + return items; + }, + point(chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + const axis = options.axis || 'xy'; + return getIntersectItems(chart, position, axis, useFinalPosition); + }, + nearest(chart, e, options, useFinalPosition) { + const position = getRelativePosition(e, chart); + const axis = options.axis || 'xy'; + return getNearestItems(chart, position, axis, options.intersect, useFinalPosition); + }, + x(chart, e, options, useFinalPosition) { + return getAxisItems(chart, e, {axis: 'x', intersect: options.intersect}, useFinalPosition); + }, + y(chart, e, options, useFinalPosition) { + return getAxisItems(chart, e, {axis: 'y', intersect: options.intersect}, useFinalPosition); + } + } +}; + +const LINE_HEIGHT = new RegExp(/^(normal|(\d+(?:\.\d+)?)(px|em|%)?)$/); +const FONT_STYLE = new RegExp(/^(normal|italic|initial|inherit|unset|(oblique( -?[0-9]?[0-9]deg)?))$/); +function toLineHeight(value, size) { + const matches = ('' + value).match(LINE_HEIGHT); + if (!matches || matches[1] === 'normal') { + return size * 1.2; + } + value = +matches[2]; + switch (matches[3]) { + case 'px': + return value; + case '%': + value /= 100; + break; + } + return size * value; +} +const numberOrZero = v => +v || 0; +function _readValueToProps(value, props) { + const ret = {}; + const objProps = isObject(props); + const keys = objProps ? Object.keys(props) : props; + const read = isObject(value) + ? objProps + ? prop => valueOrDefault(value[prop], value[props[prop]]) + : prop => value[prop] + : () => value; + for (const prop of keys) { + ret[prop] = numberOrZero(read(prop)); + } + return ret; +} +function toTRBL(value) { + return _readValueToProps(value, {top: 'y', right: 'x', bottom: 'y', left: 'x'}); +} +function toTRBLCorners(value) { + return _readValueToProps(value, ['topLeft', 'topRight', 'bottomLeft', 'bottomRight']); +} +function toPadding(value) { + const obj = toTRBL(value); + obj.width = obj.left + obj.right; + obj.height = obj.top + obj.bottom; + return obj; +} +function toFont(options, fallback) { + options = options || {}; + fallback = fallback || defaults.font; + let size = valueOrDefault(options.size, fallback.size); + if (typeof size === 'string') { + size = parseInt(size, 10); + } + let style = valueOrDefault(options.style, fallback.style); + if (style && !('' + style).match(FONT_STYLE)) { + console.warn('Invalid font style specified: "' + style + '"'); + style = ''; + } + const font = { + family: valueOrDefault(options.family, fallback.family), + lineHeight: toLineHeight(valueOrDefault(options.lineHeight, fallback.lineHeight), size), + size, + style, + weight: valueOrDefault(options.weight, fallback.weight), + string: '' + }; + font.string = toFontString(font); + return font; +} +function resolve(inputs, context, index, info) { + let cacheable = true; + let i, ilen, value; + for (i = 0, ilen = inputs.length; i < ilen; ++i) { + value = inputs[i]; + if (value === undefined) { + continue; + } + if (context !== undefined && typeof value === 'function') { + value = value(context); + cacheable = false; + } + if (index !== undefined && isArray(value)) { + value = value[index % value.length]; + cacheable = false; + } + if (value !== undefined) { + if (info && !cacheable) { + info.cacheable = false; + } + return value; + } + } +} +function _addGrace(minmax, grace, beginAtZero) { + const {min, max} = minmax; + const change = toDimension(grace, (max - min) / 2); + const keepZero = (value, add) => beginAtZero && value === 0 ? 0 : value + add; + return { + min: keepZero(min, -Math.abs(change)), + max: keepZero(max, change) + }; +} +function createContext(parentContext, context) { + return Object.assign(Object.create(parentContext), context); +} + +const STATIC_POSITIONS = ['left', 'top', 'right', 'bottom']; +function filterByPosition(array, position) { + return array.filter(v => v.pos === position); +} +function filterDynamicPositionByAxis(array, axis) { + return array.filter(v => STATIC_POSITIONS.indexOf(v.pos) === -1 && v.box.axis === axis); +} +function sortByWeight(array, reverse) { + return array.sort((a, b) => { + const v0 = reverse ? b : a; + const v1 = reverse ? a : b; + return v0.weight === v1.weight ? + v0.index - v1.index : + v0.weight - v1.weight; + }); +} +function wrapBoxes(boxes) { + const layoutBoxes = []; + let i, ilen, box, pos, stack, stackWeight; + for (i = 0, ilen = (boxes || []).length; i < ilen; ++i) { + box = boxes[i]; + ({position: pos, options: {stack, stackWeight = 1}} = box); + layoutBoxes.push({ + index: i, + box, + pos, + horizontal: box.isHorizontal(), + weight: box.weight, + stack: stack && (pos + stack), + stackWeight + }); + } + return layoutBoxes; +} +function buildStacks(layouts) { + const stacks = {}; + for (const wrap of layouts) { + const {stack, pos, stackWeight} = wrap; + if (!stack || !STATIC_POSITIONS.includes(pos)) { + continue; + } + const _stack = stacks[stack] || (stacks[stack] = {count: 0, placed: 0, weight: 0, size: 0}); + _stack.count++; + _stack.weight += stackWeight; + } + return stacks; +} +function setLayoutDims(layouts, params) { + const stacks = buildStacks(layouts); + const {vBoxMaxWidth, hBoxMaxHeight} = params; + let i, ilen, layout; + for (i = 0, ilen = layouts.length; i < ilen; ++i) { + layout = layouts[i]; + const {fullSize} = layout.box; + const stack = stacks[layout.stack]; + const factor = stack && layout.stackWeight / stack.weight; + if (layout.horizontal) { + layout.width = factor ? factor * vBoxMaxWidth : fullSize && params.availableWidth; + layout.height = hBoxMaxHeight; + } else { + layout.width = vBoxMaxWidth; + layout.height = factor ? factor * hBoxMaxHeight : fullSize && params.availableHeight; + } + } + return stacks; +} +function buildLayoutBoxes(boxes) { + const layoutBoxes = wrapBoxes(boxes); + const fullSize = sortByWeight(layoutBoxes.filter(wrap => wrap.box.fullSize), true); + const left = sortByWeight(filterByPosition(layoutBoxes, 'left'), true); + const right = sortByWeight(filterByPosition(layoutBoxes, 'right')); + const top = sortByWeight(filterByPosition(layoutBoxes, 'top'), true); + const bottom = sortByWeight(filterByPosition(layoutBoxes, 'bottom')); + const centerHorizontal = filterDynamicPositionByAxis(layoutBoxes, 'x'); + const centerVertical = filterDynamicPositionByAxis(layoutBoxes, 'y'); + return { + fullSize, + leftAndTop: left.concat(top), + rightAndBottom: right.concat(centerVertical).concat(bottom).concat(centerHorizontal), + chartArea: filterByPosition(layoutBoxes, 'chartArea'), + vertical: left.concat(right).concat(centerVertical), + horizontal: top.concat(bottom).concat(centerHorizontal) + }; +} +function getCombinedMax(maxPadding, chartArea, a, b) { + return Math.max(maxPadding[a], chartArea[a]) + Math.max(maxPadding[b], chartArea[b]); +} +function updateMaxPadding(maxPadding, boxPadding) { + maxPadding.top = Math.max(maxPadding.top, boxPadding.top); + maxPadding.left = Math.max(maxPadding.left, boxPadding.left); + maxPadding.bottom = Math.max(maxPadding.bottom, boxPadding.bottom); + maxPadding.right = Math.max(maxPadding.right, boxPadding.right); +} +function updateDims(chartArea, params, layout, stacks) { + const {pos, box} = layout; + const maxPadding = chartArea.maxPadding; + if (!isObject(pos)) { + if (layout.size) { + chartArea[pos] -= layout.size; + } + const stack = stacks[layout.stack] || {size: 0, count: 1}; + stack.size = Math.max(stack.size, layout.horizontal ? box.height : box.width); + layout.size = stack.size / stack.count; + chartArea[pos] += layout.size; + } + if (box.getPadding) { + updateMaxPadding(maxPadding, box.getPadding()); + } + const newWidth = Math.max(0, params.outerWidth - getCombinedMax(maxPadding, chartArea, 'left', 'right')); + const newHeight = Math.max(0, params.outerHeight - getCombinedMax(maxPadding, chartArea, 'top', 'bottom')); + const widthChanged = newWidth !== chartArea.w; + const heightChanged = newHeight !== chartArea.h; + chartArea.w = newWidth; + chartArea.h = newHeight; + return layout.horizontal + ? {same: widthChanged, other: heightChanged} + : {same: heightChanged, other: widthChanged}; +} +function handleMaxPadding(chartArea) { + const maxPadding = chartArea.maxPadding; + function updatePos(pos) { + const change = Math.max(maxPadding[pos] - chartArea[pos], 0); + chartArea[pos] += change; + return change; + } + chartArea.y += updatePos('top'); + chartArea.x += updatePos('left'); + updatePos('right'); + updatePos('bottom'); +} +function getMargins(horizontal, chartArea) { + const maxPadding = chartArea.maxPadding; + function marginForPositions(positions) { + const margin = {left: 0, top: 0, right: 0, bottom: 0}; + positions.forEach((pos) => { + margin[pos] = Math.max(chartArea[pos], maxPadding[pos]); + }); + return margin; + } + return horizontal + ? marginForPositions(['left', 'right']) + : marginForPositions(['top', 'bottom']); +} +function fitBoxes(boxes, chartArea, params, stacks) { + const refitBoxes = []; + let i, ilen, layout, box, refit, changed; + for (i = 0, ilen = boxes.length, refit = 0; i < ilen; ++i) { + layout = boxes[i]; + box = layout.box; + box.update( + layout.width || chartArea.w, + layout.height || chartArea.h, + getMargins(layout.horizontal, chartArea) + ); + const {same, other} = updateDims(chartArea, params, layout, stacks); + refit |= same && refitBoxes.length; + changed = changed || other; + if (!box.fullSize) { + refitBoxes.push(layout); + } + } + return refit && fitBoxes(refitBoxes, chartArea, params, stacks) || changed; +} +function setBoxDims(box, left, top, width, height) { + box.top = top; + box.left = left; + box.right = left + width; + box.bottom = top + height; + box.width = width; + box.height = height; +} +function placeBoxes(boxes, chartArea, params, stacks) { + const userPadding = params.padding; + let {x, y} = chartArea; + for (const layout of boxes) { + const box = layout.box; + const stack = stacks[layout.stack] || {count: 1, placed: 0, weight: 1}; + const weight = (layout.stackWeight / stack.weight) || 1; + if (layout.horizontal) { + const width = chartArea.w * weight; + const height = stack.size || box.height; + if (defined(stack.start)) { + y = stack.start; + } + if (box.fullSize) { + setBoxDims(box, userPadding.left, y, params.outerWidth - userPadding.right - userPadding.left, height); + } else { + setBoxDims(box, chartArea.left + stack.placed, y, width, height); + } + stack.start = y; + stack.placed += width; + y = box.bottom; + } else { + const height = chartArea.h * weight; + const width = stack.size || box.width; + if (defined(stack.start)) { + x = stack.start; + } + if (box.fullSize) { + setBoxDims(box, x, userPadding.top, width, params.outerHeight - userPadding.bottom - userPadding.top); + } else { + setBoxDims(box, x, chartArea.top + stack.placed, width, height); + } + stack.start = x; + stack.placed += height; + x = box.right; + } + } + chartArea.x = x; + chartArea.y = y; +} +defaults.set('layout', { + autoPadding: true, + padding: { + top: 0, + right: 0, + bottom: 0, + left: 0 + } +}); +var layouts = { + addBox(chart, item) { + if (!chart.boxes) { + chart.boxes = []; + } + item.fullSize = item.fullSize || false; + item.position = item.position || 'top'; + item.weight = item.weight || 0; + item._layers = item._layers || function() { + return [{ + z: 0, + draw(chartArea) { + item.draw(chartArea); + } + }]; + }; + chart.boxes.push(item); + }, + removeBox(chart, layoutItem) { + const index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1; + if (index !== -1) { + chart.boxes.splice(index, 1); + } + }, + configure(chart, item, options) { + item.fullSize = options.fullSize; + item.position = options.position; + item.weight = options.weight; + }, + update(chart, width, height, minPadding) { + if (!chart) { + return; + } + const padding = toPadding(chart.options.layout.padding); + const availableWidth = Math.max(width - padding.width, 0); + const availableHeight = Math.max(height - padding.height, 0); + const boxes = buildLayoutBoxes(chart.boxes); + const verticalBoxes = boxes.vertical; + const horizontalBoxes = boxes.horizontal; + each(chart.boxes, box => { + if (typeof box.beforeLayout === 'function') { + box.beforeLayout(); + } + }); + const visibleVerticalBoxCount = verticalBoxes.reduce((total, wrap) => + wrap.box.options && wrap.box.options.display === false ? total : total + 1, 0) || 1; + const params = Object.freeze({ + outerWidth: width, + outerHeight: height, + padding, + availableWidth, + availableHeight, + vBoxMaxWidth: availableWidth / 2 / visibleVerticalBoxCount, + hBoxMaxHeight: availableHeight / 2 + }); + const maxPadding = Object.assign({}, padding); + updateMaxPadding(maxPadding, toPadding(minPadding)); + const chartArea = Object.assign({ + maxPadding, + w: availableWidth, + h: availableHeight, + x: padding.left, + y: padding.top + }, padding); + const stacks = setLayoutDims(verticalBoxes.concat(horizontalBoxes), params); + fitBoxes(boxes.fullSize, chartArea, params, stacks); + fitBoxes(verticalBoxes, chartArea, params, stacks); + if (fitBoxes(horizontalBoxes, chartArea, params, stacks)) { + fitBoxes(verticalBoxes, chartArea, params, stacks); + } + handleMaxPadding(chartArea); + placeBoxes(boxes.leftAndTop, chartArea, params, stacks); + chartArea.x += chartArea.w; + chartArea.y += chartArea.h; + placeBoxes(boxes.rightAndBottom, chartArea, params, stacks); + chart.chartArea = { + left: chartArea.left, + top: chartArea.top, + right: chartArea.left + chartArea.w, + bottom: chartArea.top + chartArea.h, + height: chartArea.h, + width: chartArea.w, + }; + each(boxes.chartArea, (layout) => { + const box = layout.box; + Object.assign(box, chart.chartArea); + box.update(chartArea.w, chartArea.h, {left: 0, top: 0, right: 0, bottom: 0}); + }); + } +}; + +function _createResolver(scopes, prefixes = [''], rootScopes = scopes, fallback, getTarget = () => scopes[0]) { + if (!defined(fallback)) { + fallback = _resolve('_fallback', scopes); + } + const cache = { + [Symbol.toStringTag]: 'Object', + _cacheable: true, + _scopes: scopes, + _rootScopes: rootScopes, + _fallback: fallback, + _getTarget: getTarget, + override: (scope) => _createResolver([scope, ...scopes], prefixes, rootScopes, fallback), + }; + return new Proxy(cache, { + deleteProperty(target, prop) { + delete target[prop]; + delete target._keys; + delete scopes[0][prop]; + return true; + }, + get(target, prop) { + return _cached(target, prop, + () => _resolveWithPrefixes(prop, prefixes, scopes, target)); + }, + getOwnPropertyDescriptor(target, prop) { + return Reflect.getOwnPropertyDescriptor(target._scopes[0], prop); + }, + getPrototypeOf() { + return Reflect.getPrototypeOf(scopes[0]); + }, + has(target, prop) { + return getKeysFromAllScopes(target).includes(prop); + }, + ownKeys(target) { + return getKeysFromAllScopes(target); + }, + set(target, prop, value) { + const storage = target._storage || (target._storage = getTarget()); + target[prop] = storage[prop] = value; + delete target._keys; + return true; + } + }); +} +function _attachContext(proxy, context, subProxy, descriptorDefaults) { + const cache = { + _cacheable: false, + _proxy: proxy, + _context: context, + _subProxy: subProxy, + _stack: new Set(), + _descriptors: _descriptors(proxy, descriptorDefaults), + setContext: (ctx) => _attachContext(proxy, ctx, subProxy, descriptorDefaults), + override: (scope) => _attachContext(proxy.override(scope), context, subProxy, descriptorDefaults) + }; + return new Proxy(cache, { + deleteProperty(target, prop) { + delete target[prop]; + delete proxy[prop]; + return true; + }, + get(target, prop, receiver) { + return _cached(target, prop, + () => _resolveWithContext(target, prop, receiver)); + }, + getOwnPropertyDescriptor(target, prop) { + return target._descriptors.allKeys + ? Reflect.has(proxy, prop) ? {enumerable: true, configurable: true} : undefined + : Reflect.getOwnPropertyDescriptor(proxy, prop); + }, + getPrototypeOf() { + return Reflect.getPrototypeOf(proxy); + }, + has(target, prop) { + return Reflect.has(proxy, prop); + }, + ownKeys() { + return Reflect.ownKeys(proxy); + }, + set(target, prop, value) { + proxy[prop] = value; + delete target[prop]; + return true; + } + }); +} +function _descriptors(proxy, defaults = {scriptable: true, indexable: true}) { + const {_scriptable = defaults.scriptable, _indexable = defaults.indexable, _allKeys = defaults.allKeys} = proxy; + return { + allKeys: _allKeys, + scriptable: _scriptable, + indexable: _indexable, + isScriptable: isFunction(_scriptable) ? _scriptable : () => _scriptable, + isIndexable: isFunction(_indexable) ? _indexable : () => _indexable + }; +} +const readKey = (prefix, name) => prefix ? prefix + _capitalize(name) : name; +const needsSubResolver = (prop, value) => isObject(value) && prop !== 'adapters' && + (Object.getPrototypeOf(value) === null || value.constructor === Object); +function _cached(target, prop, resolve) { + if (Object.prototype.hasOwnProperty.call(target, prop)) { + return target[prop]; + } + const value = resolve(); + target[prop] = value; + return value; +} +function _resolveWithContext(target, prop, receiver) { + const {_proxy, _context, _subProxy, _descriptors: descriptors} = target; + let value = _proxy[prop]; + if (isFunction(value) && descriptors.isScriptable(prop)) { + value = _resolveScriptable(prop, value, target, receiver); + } + if (isArray(value) && value.length) { + value = _resolveArray(prop, value, target, descriptors.isIndexable); + } + if (needsSubResolver(prop, value)) { + value = _attachContext(value, _context, _subProxy && _subProxy[prop], descriptors); + } + return value; +} +function _resolveScriptable(prop, value, target, receiver) { + const {_proxy, _context, _subProxy, _stack} = target; + if (_stack.has(prop)) { + throw new Error('Recursion detected: ' + Array.from(_stack).join('->') + '->' + prop); + } + _stack.add(prop); + value = value(_context, _subProxy || receiver); + _stack.delete(prop); + if (needsSubResolver(prop, value)) { + value = createSubResolver(_proxy._scopes, _proxy, prop, value); + } + return value; +} +function _resolveArray(prop, value, target, isIndexable) { + const {_proxy, _context, _subProxy, _descriptors: descriptors} = target; + if (defined(_context.index) && isIndexable(prop)) { + value = value[_context.index % value.length]; + } else if (isObject(value[0])) { + const arr = value; + const scopes = _proxy._scopes.filter(s => s !== arr); + value = []; + for (const item of arr) { + const resolver = createSubResolver(scopes, _proxy, prop, item); + value.push(_attachContext(resolver, _context, _subProxy && _subProxy[prop], descriptors)); + } + } + return value; +} +function resolveFallback(fallback, prop, value) { + return isFunction(fallback) ? fallback(prop, value) : fallback; +} +const getScope = (key, parent) => key === true ? parent + : typeof key === 'string' ? resolveObjectKey(parent, key) : undefined; +function addScopes(set, parentScopes, key, parentFallback, value) { + for (const parent of parentScopes) { + const scope = getScope(key, parent); + if (scope) { + set.add(scope); + const fallback = resolveFallback(scope._fallback, key, value); + if (defined(fallback) && fallback !== key && fallback !== parentFallback) { + return fallback; + } + } else if (scope === false && defined(parentFallback) && key !== parentFallback) { + return null; + } + } + return false; +} +function createSubResolver(parentScopes, resolver, prop, value) { + const rootScopes = resolver._rootScopes; + const fallback = resolveFallback(resolver._fallback, prop, value); + const allScopes = [...parentScopes, ...rootScopes]; + const set = new Set(); + set.add(value); + let key = addScopesFromKey(set, allScopes, prop, fallback || prop, value); + if (key === null) { + return false; + } + if (defined(fallback) && fallback !== prop) { + key = addScopesFromKey(set, allScopes, fallback, key, value); + if (key === null) { + return false; + } + } + return _createResolver(Array.from(set), [''], rootScopes, fallback, + () => subGetTarget(resolver, prop, value)); +} +function addScopesFromKey(set, allScopes, key, fallback, item) { + while (key) { + key = addScopes(set, allScopes, key, fallback, item); + } + return key; +} +function subGetTarget(resolver, prop, value) { + const parent = resolver._getTarget(); + if (!(prop in parent)) { + parent[prop] = {}; + } + const target = parent[prop]; + if (isArray(target) && isObject(value)) { + return value; + } + return target; +} +function _resolveWithPrefixes(prop, prefixes, scopes, proxy) { + let value; + for (const prefix of prefixes) { + value = _resolve(readKey(prefix, prop), scopes); + if (defined(value)) { + return needsSubResolver(prop, value) + ? createSubResolver(scopes, proxy, prop, value) + : value; + } + } +} +function _resolve(key, scopes) { + for (const scope of scopes) { + if (!scope) { + continue; + } + const value = scope[key]; + if (defined(value)) { + return value; + } + } +} +function getKeysFromAllScopes(target) { + let keys = target._keys; + if (!keys) { + keys = target._keys = resolveKeysFromAllScopes(target._scopes); + } + return keys; +} +function resolveKeysFromAllScopes(scopes) { + const set = new Set(); + for (const scope of scopes) { + for (const key of Object.keys(scope).filter(k => !k.startsWith('_'))) { + set.add(key); + } + } + return Array.from(set); +} + +const EPSILON = Number.EPSILON || 1e-14; +const getPoint = (points, i) => i < points.length && !points[i].skip && points[i]; +const getValueAxis = (indexAxis) => indexAxis === 'x' ? 'y' : 'x'; +function splineCurve(firstPoint, middlePoint, afterPoint, t) { + const previous = firstPoint.skip ? middlePoint : firstPoint; + const current = middlePoint; + const next = afterPoint.skip ? middlePoint : afterPoint; + const d01 = distanceBetweenPoints(current, previous); + const d12 = distanceBetweenPoints(next, current); + let s01 = d01 / (d01 + d12); + let s12 = d12 / (d01 + d12); + s01 = isNaN(s01) ? 0 : s01; + s12 = isNaN(s12) ? 0 : s12; + const fa = t * s01; + const fb = t * s12; + return { + previous: { + x: current.x - fa * (next.x - previous.x), + y: current.y - fa * (next.y - previous.y) + }, + next: { + x: current.x + fb * (next.x - previous.x), + y: current.y + fb * (next.y - previous.y) + } + }; +} +function monotoneAdjust(points, deltaK, mK) { + const pointsLen = points.length; + let alphaK, betaK, tauK, squaredMagnitude, pointCurrent; + let pointAfter = getPoint(points, 0); + for (let i = 0; i < pointsLen - 1; ++i) { + pointCurrent = pointAfter; + pointAfter = getPoint(points, i + 1); + if (!pointCurrent || !pointAfter) { + continue; + } + if (almostEquals(deltaK[i], 0, EPSILON)) { + mK[i] = mK[i + 1] = 0; + continue; + } + alphaK = mK[i] / deltaK[i]; + betaK = mK[i + 1] / deltaK[i]; + squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2); + if (squaredMagnitude <= 9) { + continue; + } + tauK = 3 / Math.sqrt(squaredMagnitude); + mK[i] = alphaK * tauK * deltaK[i]; + mK[i + 1] = betaK * tauK * deltaK[i]; + } +} +function monotoneCompute(points, mK, indexAxis = 'x') { + const valueAxis = getValueAxis(indexAxis); + const pointsLen = points.length; + let delta, pointBefore, pointCurrent; + let pointAfter = getPoint(points, 0); + for (let i = 0; i < pointsLen; ++i) { + pointBefore = pointCurrent; + pointCurrent = pointAfter; + pointAfter = getPoint(points, i + 1); + if (!pointCurrent) { + continue; + } + const iPixel = pointCurrent[indexAxis]; + const vPixel = pointCurrent[valueAxis]; + if (pointBefore) { + delta = (iPixel - pointBefore[indexAxis]) / 3; + pointCurrent[`cp1${indexAxis}`] = iPixel - delta; + pointCurrent[`cp1${valueAxis}`] = vPixel - delta * mK[i]; + } + if (pointAfter) { + delta = (pointAfter[indexAxis] - iPixel) / 3; + pointCurrent[`cp2${indexAxis}`] = iPixel + delta; + pointCurrent[`cp2${valueAxis}`] = vPixel + delta * mK[i]; + } + } +} +function splineCurveMonotone(points, indexAxis = 'x') { + const valueAxis = getValueAxis(indexAxis); + const pointsLen = points.length; + const deltaK = Array(pointsLen).fill(0); + const mK = Array(pointsLen); + let i, pointBefore, pointCurrent; + let pointAfter = getPoint(points, 0); + for (i = 0; i < pointsLen; ++i) { + pointBefore = pointCurrent; + pointCurrent = pointAfter; + pointAfter = getPoint(points, i + 1); + if (!pointCurrent) { + continue; + } + if (pointAfter) { + const slopeDelta = pointAfter[indexAxis] - pointCurrent[indexAxis]; + deltaK[i] = slopeDelta !== 0 ? (pointAfter[valueAxis] - pointCurrent[valueAxis]) / slopeDelta : 0; + } + mK[i] = !pointBefore ? deltaK[i] + : !pointAfter ? deltaK[i - 1] + : (sign(deltaK[i - 1]) !== sign(deltaK[i])) ? 0 + : (deltaK[i - 1] + deltaK[i]) / 2; + } + monotoneAdjust(points, deltaK, mK); + monotoneCompute(points, mK, indexAxis); +} +function capControlPoint(pt, min, max) { + return Math.max(Math.min(pt, max), min); +} +function capBezierPoints(points, area) { + let i, ilen, point, inArea, inAreaPrev; + let inAreaNext = _isPointInArea(points[0], area); + for (i = 0, ilen = points.length; i < ilen; ++i) { + inAreaPrev = inArea; + inArea = inAreaNext; + inAreaNext = i < ilen - 1 && _isPointInArea(points[i + 1], area); + if (!inArea) { + continue; + } + point = points[i]; + if (inAreaPrev) { + point.cp1x = capControlPoint(point.cp1x, area.left, area.right); + point.cp1y = capControlPoint(point.cp1y, area.top, area.bottom); + } + if (inAreaNext) { + point.cp2x = capControlPoint(point.cp2x, area.left, area.right); + point.cp2y = capControlPoint(point.cp2y, area.top, area.bottom); + } + } +} +function _updateBezierControlPoints(points, options, area, loop, indexAxis) { + let i, ilen, point, controlPoints; + if (options.spanGaps) { + points = points.filter((pt) => !pt.skip); + } + if (options.cubicInterpolationMode === 'monotone') { + splineCurveMonotone(points, indexAxis); + } else { + let prev = loop ? points[points.length - 1] : points[0]; + for (i = 0, ilen = points.length; i < ilen; ++i) { + point = points[i]; + controlPoints = splineCurve( + prev, + point, + points[Math.min(i + 1, ilen - (loop ? 0 : 1)) % ilen], + options.tension + ); + point.cp1x = controlPoints.previous.x; + point.cp1y = controlPoints.previous.y; + point.cp2x = controlPoints.next.x; + point.cp2y = controlPoints.next.y; + prev = point; + } + } + if (options.capBezierPoints) { + capBezierPoints(points, area); + } +} + +const atEdge = (t) => t === 0 || t === 1; +const elasticIn = (t, s, p) => -(Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * TAU / p)); +const elasticOut = (t, s, p) => Math.pow(2, -10 * t) * Math.sin((t - s) * TAU / p) + 1; +const effects = { + linear: t => t, + easeInQuad: t => t * t, + easeOutQuad: t => -t * (t - 2), + easeInOutQuad: t => ((t /= 0.5) < 1) + ? 0.5 * t * t + : -0.5 * ((--t) * (t - 2) - 1), + easeInCubic: t => t * t * t, + easeOutCubic: t => (t -= 1) * t * t + 1, + easeInOutCubic: t => ((t /= 0.5) < 1) + ? 0.5 * t * t * t + : 0.5 * ((t -= 2) * t * t + 2), + easeInQuart: t => t * t * t * t, + easeOutQuart: t => -((t -= 1) * t * t * t - 1), + easeInOutQuart: t => ((t /= 0.5) < 1) + ? 0.5 * t * t * t * t + : -0.5 * ((t -= 2) * t * t * t - 2), + easeInQuint: t => t * t * t * t * t, + easeOutQuint: t => (t -= 1) * t * t * t * t + 1, + easeInOutQuint: t => ((t /= 0.5) < 1) + ? 0.5 * t * t * t * t * t + : 0.5 * ((t -= 2) * t * t * t * t + 2), + easeInSine: t => -Math.cos(t * HALF_PI) + 1, + easeOutSine: t => Math.sin(t * HALF_PI), + easeInOutSine: t => -0.5 * (Math.cos(PI * t) - 1), + easeInExpo: t => (t === 0) ? 0 : Math.pow(2, 10 * (t - 1)), + easeOutExpo: t => (t === 1) ? 1 : -Math.pow(2, -10 * t) + 1, + easeInOutExpo: t => atEdge(t) ? t : t < 0.5 + ? 0.5 * Math.pow(2, 10 * (t * 2 - 1)) + : 0.5 * (-Math.pow(2, -10 * (t * 2 - 1)) + 2), + easeInCirc: t => (t >= 1) ? t : -(Math.sqrt(1 - t * t) - 1), + easeOutCirc: t => Math.sqrt(1 - (t -= 1) * t), + easeInOutCirc: t => ((t /= 0.5) < 1) + ? -0.5 * (Math.sqrt(1 - t * t) - 1) + : 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1), + easeInElastic: t => atEdge(t) ? t : elasticIn(t, 0.075, 0.3), + easeOutElastic: t => atEdge(t) ? t : elasticOut(t, 0.075, 0.3), + easeInOutElastic(t) { + const s = 0.1125; + const p = 0.45; + return atEdge(t) ? t : + t < 0.5 + ? 0.5 * elasticIn(t * 2, s, p) + : 0.5 + 0.5 * elasticOut(t * 2 - 1, s, p); + }, + easeInBack(t) { + const s = 1.70158; + return t * t * ((s + 1) * t - s); + }, + easeOutBack(t) { + const s = 1.70158; + return (t -= 1) * t * ((s + 1) * t + s) + 1; + }, + easeInOutBack(t) { + let s = 1.70158; + if ((t /= 0.5) < 1) { + return 0.5 * (t * t * (((s *= (1.525)) + 1) * t - s)); + } + return 0.5 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2); + }, + easeInBounce: t => 1 - effects.easeOutBounce(1 - t), + easeOutBounce(t) { + const m = 7.5625; + const d = 2.75; + if (t < (1 / d)) { + return m * t * t; + } + if (t < (2 / d)) { + return m * (t -= (1.5 / d)) * t + 0.75; + } + if (t < (2.5 / d)) { + return m * (t -= (2.25 / d)) * t + 0.9375; + } + return m * (t -= (2.625 / d)) * t + 0.984375; + }, + easeInOutBounce: t => (t < 0.5) + ? effects.easeInBounce(t * 2) * 0.5 + : effects.easeOutBounce(t * 2 - 1) * 0.5 + 0.5, +}; + +function _pointInLine(p1, p2, t, mode) { + return { + x: p1.x + t * (p2.x - p1.x), + y: p1.y + t * (p2.y - p1.y) + }; +} +function _steppedInterpolation(p1, p2, t, mode) { + return { + x: p1.x + t * (p2.x - p1.x), + y: mode === 'middle' ? t < 0.5 ? p1.y : p2.y + : mode === 'after' ? t < 1 ? p1.y : p2.y + : t > 0 ? p2.y : p1.y + }; +} +function _bezierInterpolation(p1, p2, t, mode) { + const cp1 = {x: p1.cp2x, y: p1.cp2y}; + const cp2 = {x: p2.cp1x, y: p2.cp1y}; + const a = _pointInLine(p1, cp1, t); + const b = _pointInLine(cp1, cp2, t); + const c = _pointInLine(cp2, p2, t); + const d = _pointInLine(a, b, t); + const e = _pointInLine(b, c, t); + return _pointInLine(d, e, t); +} + +const intlCache = new Map(); +function getNumberFormat(locale, options) { + options = options || {}; + const cacheKey = locale + JSON.stringify(options); + let formatter = intlCache.get(cacheKey); + if (!formatter) { + formatter = new Intl.NumberFormat(locale, options); + intlCache.set(cacheKey, formatter); + } + return formatter; +} +function formatNumber(num, locale, options) { + return getNumberFormat(locale, options).format(num); +} + +const getRightToLeftAdapter = function(rectX, width) { + return { + x(x) { + return rectX + rectX + width - x; + }, + setWidth(w) { + width = w; + }, + textAlign(align) { + if (align === 'center') { + return align; + } + return align === 'right' ? 'left' : 'right'; + }, + xPlus(x, value) { + return x - value; + }, + leftForLtr(x, itemWidth) { + return x - itemWidth; + }, + }; +}; +const getLeftToRightAdapter = function() { + return { + x(x) { + return x; + }, + setWidth(w) { + }, + textAlign(align) { + return align; + }, + xPlus(x, value) { + return x + value; + }, + leftForLtr(x, _itemWidth) { + return x; + }, + }; +}; +function getRtlAdapter(rtl, rectX, width) { + return rtl ? getRightToLeftAdapter(rectX, width) : getLeftToRightAdapter(); +} +function overrideTextDirection(ctx, direction) { + let style, original; + if (direction === 'ltr' || direction === 'rtl') { + style = ctx.canvas.style; + original = [ + style.getPropertyValue('direction'), + style.getPropertyPriority('direction'), + ]; + style.setProperty('direction', direction, 'important'); + ctx.prevTextDirection = original; + } +} +function restoreTextDirection(ctx, original) { + if (original !== undefined) { + delete ctx.prevTextDirection; + ctx.canvas.style.setProperty('direction', original[0], original[1]); + } +} + +function propertyFn(property) { + if (property === 'angle') { + return { + between: _angleBetween, + compare: _angleDiff, + normalize: _normalizeAngle, + }; + } + return { + between: _isBetween, + compare: (a, b) => a - b, + normalize: x => x + }; +} +function normalizeSegment({start, end, count, loop, style}) { + return { + start: start % count, + end: end % count, + loop: loop && (end - start + 1) % count === 0, + style + }; +} +function getSegment(segment, points, bounds) { + const {property, start: startBound, end: endBound} = bounds; + const {between, normalize} = propertyFn(property); + const count = points.length; + let {start, end, loop} = segment; + let i, ilen; + if (loop) { + start += count; + end += count; + for (i = 0, ilen = count; i < ilen; ++i) { + if (!between(normalize(points[start % count][property]), startBound, endBound)) { + break; + } + start--; + end--; + } + start %= count; + end %= count; + } + if (end < start) { + end += count; + } + return {start, end, loop, style: segment.style}; +} +function _boundSegment(segment, points, bounds) { + if (!bounds) { + return [segment]; + } + const {property, start: startBound, end: endBound} = bounds; + const count = points.length; + const {compare, between, normalize} = propertyFn(property); + const {start, end, loop, style} = getSegment(segment, points, bounds); + const result = []; + let inside = false; + let subStart = null; + let value, point, prevValue; + const startIsBefore = () => between(startBound, prevValue, value) && compare(startBound, prevValue) !== 0; + const endIsBefore = () => compare(endBound, value) === 0 || between(endBound, prevValue, value); + const shouldStart = () => inside || startIsBefore(); + const shouldStop = () => !inside || endIsBefore(); + for (let i = start, prev = start; i <= end; ++i) { + point = points[i % count]; + if (point.skip) { + continue; + } + value = normalize(point[property]); + if (value === prevValue) { + continue; + } + inside = between(value, startBound, endBound); + if (subStart === null && shouldStart()) { + subStart = compare(value, startBound) === 0 ? i : prev; + } + if (subStart !== null && shouldStop()) { + result.push(normalizeSegment({start: subStart, end: i, loop, count, style})); + subStart = null; + } + prev = i; + prevValue = value; + } + if (subStart !== null) { + result.push(normalizeSegment({start: subStart, end, loop, count, style})); + } + return result; +} +function _boundSegments(line, bounds) { + const result = []; + const segments = line.segments; + for (let i = 0; i < segments.length; i++) { + const sub = _boundSegment(segments[i], line.points, bounds); + if (sub.length) { + result.push(...sub); + } + } + return result; +} +function findStartAndEnd(points, count, loop, spanGaps) { + let start = 0; + let end = count - 1; + if (loop && !spanGaps) { + while (start < count && !points[start].skip) { + start++; + } + } + while (start < count && points[start].skip) { + start++; + } + start %= count; + if (loop) { + end += start; + } + while (end > start && points[end % count].skip) { + end--; + } + end %= count; + return {start, end}; +} +function solidSegments(points, start, max, loop) { + const count = points.length; + const result = []; + let last = start; + let prev = points[start]; + let end; + for (end = start + 1; end <= max; ++end) { + const cur = points[end % count]; + if (cur.skip || cur.stop) { + if (!prev.skip) { + loop = false; + result.push({start: start % count, end: (end - 1) % count, loop}); + start = last = cur.stop ? end : null; + } + } else { + last = end; + if (prev.skip) { + start = end; + } + } + prev = cur; + } + if (last !== null) { + result.push({start: start % count, end: last % count, loop}); + } + return result; +} +function _computeSegments(line, segmentOptions) { + const points = line.points; + const spanGaps = line.options.spanGaps; + const count = points.length; + if (!count) { + return []; + } + const loop = !!line._loop; + const {start, end} = findStartAndEnd(points, count, loop, spanGaps); + if (spanGaps === true) { + return splitByStyles(line, [{start, end, loop}], points, segmentOptions); + } + const max = end < start ? end + count : end; + const completeLoop = !!line._fullLoop && start === 0 && end === count - 1; + return splitByStyles(line, solidSegments(points, start, max, completeLoop), points, segmentOptions); +} +function splitByStyles(line, segments, points, segmentOptions) { + if (!segmentOptions || !segmentOptions.setContext || !points) { + return segments; + } + return doSplitByStyles(line, segments, points, segmentOptions); +} +function doSplitByStyles(line, segments, points, segmentOptions) { + const chartContext = line._chart.getContext(); + const baseStyle = readStyle(line.options); + const {_datasetIndex: datasetIndex, options: {spanGaps}} = line; + const count = points.length; + const result = []; + let prevStyle = baseStyle; + let start = segments[0].start; + let i = start; + function addStyle(s, e, l, st) { + const dir = spanGaps ? -1 : 1; + if (s === e) { + return; + } + s += count; + while (points[s % count].skip) { + s -= dir; + } + while (points[e % count].skip) { + e += dir; + } + if (s % count !== e % count) { + result.push({start: s % count, end: e % count, loop: l, style: st}); + prevStyle = st; + start = e % count; + } + } + for (const segment of segments) { + start = spanGaps ? start : segment.start; + let prev = points[start % count]; + let style; + for (i = start + 1; i <= segment.end; i++) { + const pt = points[i % count]; + style = readStyle(segmentOptions.setContext(createContext(chartContext, { + type: 'segment', + p0: prev, + p1: pt, + p0DataIndex: (i - 1) % count, + p1DataIndex: i % count, + datasetIndex + }))); + if (styleChanged(style, prevStyle)) { + addStyle(start, i - 1, segment.loop, prevStyle); + } + prev = pt; + prevStyle = style; + } + if (start < i - 1) { + addStyle(start, i - 1, segment.loop, prevStyle); + } + } + return result; +} +function readStyle(options) { + return { + backgroundColor: options.backgroundColor, + borderCapStyle: options.borderCapStyle, + borderDash: options.borderDash, + borderDashOffset: options.borderDashOffset, + borderJoinStyle: options.borderJoinStyle, + borderWidth: options.borderWidth, + borderColor: options.borderColor + }; +} +function styleChanged(style, prevStyle) { + return prevStyle && JSON.stringify(style) !== JSON.stringify(prevStyle); +} + +var helpers = /*#__PURE__*/Object.freeze({ +__proto__: null, +easingEffects: effects, +color: color, +getHoverColor: getHoverColor, +noop: noop, +uid: uid, +isNullOrUndef: isNullOrUndef, +isArray: isArray, +isObject: isObject, +isFinite: isNumberFinite, +finiteOrDefault: finiteOrDefault, +valueOrDefault: valueOrDefault, +toPercentage: toPercentage, +toDimension: toDimension, +callback: callback, +each: each, +_elementsEqual: _elementsEqual, +clone: clone, +_merger: _merger, +merge: merge, +mergeIf: mergeIf, +_mergerIf: _mergerIf, +_deprecated: _deprecated, +resolveObjectKey: resolveObjectKey, +_capitalize: _capitalize, +defined: defined, +isFunction: isFunction, +setsEqual: setsEqual, +_isClickEvent: _isClickEvent, +toFontString: toFontString, +_measureText: _measureText, +_longestText: _longestText, +_alignPixel: _alignPixel, +clearCanvas: clearCanvas, +drawPoint: drawPoint, +_isPointInArea: _isPointInArea, +clipArea: clipArea, +unclipArea: unclipArea, +_steppedLineTo: _steppedLineTo, +_bezierCurveTo: _bezierCurveTo, +renderText: renderText, +addRoundedRectPath: addRoundedRectPath, +_lookup: _lookup, +_lookupByKey: _lookupByKey, +_rlookupByKey: _rlookupByKey, +_filterBetween: _filterBetween, +listenArrayEvents: listenArrayEvents, +unlistenArrayEvents: unlistenArrayEvents, +_arrayUnique: _arrayUnique, +_createResolver: _createResolver, +_attachContext: _attachContext, +_descriptors: _descriptors, +splineCurve: splineCurve, +splineCurveMonotone: splineCurveMonotone, +_updateBezierControlPoints: _updateBezierControlPoints, +_isDomSupported: _isDomSupported, +_getParentNode: _getParentNode, +getStyle: getStyle, +getRelativePosition: getRelativePosition$1, +getMaximumSize: getMaximumSize, +retinaScale: retinaScale, +supportsEventListenerOptions: supportsEventListenerOptions, +readUsedSize: readUsedSize, +fontString: fontString, +requestAnimFrame: requestAnimFrame, +throttled: throttled, +debounce: debounce, +_toLeftRightCenter: _toLeftRightCenter, +_alignStartEnd: _alignStartEnd, +_textX: _textX, +_pointInLine: _pointInLine, +_steppedInterpolation: _steppedInterpolation, +_bezierInterpolation: _bezierInterpolation, +formatNumber: formatNumber, +toLineHeight: toLineHeight, +_readValueToProps: _readValueToProps, +toTRBL: toTRBL, +toTRBLCorners: toTRBLCorners, +toPadding: toPadding, +toFont: toFont, +resolve: resolve, +_addGrace: _addGrace, +createContext: createContext, +PI: PI, +TAU: TAU, +PITAU: PITAU, +INFINITY: INFINITY, +RAD_PER_DEG: RAD_PER_DEG, +HALF_PI: HALF_PI, +QUARTER_PI: QUARTER_PI, +TWO_THIRDS_PI: TWO_THIRDS_PI, +log10: log10, +sign: sign, +niceNum: niceNum, +_factorize: _factorize, +isNumber: isNumber, +almostEquals: almostEquals, +almostWhole: almostWhole, +_setMinAndMaxByKey: _setMinAndMaxByKey, +toRadians: toRadians, +toDegrees: toDegrees, +_decimalPlaces: _decimalPlaces, +getAngleFromPoint: getAngleFromPoint, +distanceBetweenPoints: distanceBetweenPoints, +_angleDiff: _angleDiff, +_normalizeAngle: _normalizeAngle, +_angleBetween: _angleBetween, +_limitValue: _limitValue, +_int16Range: _int16Range, +_isBetween: _isBetween, +getRtlAdapter: getRtlAdapter, +overrideTextDirection: overrideTextDirection, +restoreTextDirection: restoreTextDirection, +_boundSegment: _boundSegment, +_boundSegments: _boundSegments, +_computeSegments: _computeSegments +}); + +class BasePlatform { + acquireContext(canvas, aspectRatio) {} + releaseContext(context) { + return false; + } + addEventListener(chart, type, listener) {} + removeEventListener(chart, type, listener) {} + getDevicePixelRatio() { + return 1; + } + getMaximumSize(element, width, height, aspectRatio) { + width = Math.max(0, width || element.width); + height = height || element.height; + return { + width, + height: Math.max(0, aspectRatio ? Math.floor(width / aspectRatio) : height) + }; + } + isAttached(canvas) { + return true; + } + updateConfig(config) { + } +} + +class BasicPlatform extends BasePlatform { + acquireContext(item) { + return item && item.getContext && item.getContext('2d') || null; + } + updateConfig(config) { + config.options.animation = false; + } +} + +const EXPANDO_KEY = '$chartjs'; +const EVENT_TYPES = { + touchstart: 'mousedown', + touchmove: 'mousemove', + touchend: 'mouseup', + pointerenter: 'mouseenter', + pointerdown: 'mousedown', + pointermove: 'mousemove', + pointerup: 'mouseup', + pointerleave: 'mouseout', + pointerout: 'mouseout' +}; +const isNullOrEmpty = value => value === null || value === ''; +function initCanvas(canvas, aspectRatio) { + const style = canvas.style; + const renderHeight = canvas.getAttribute('height'); + const renderWidth = canvas.getAttribute('width'); + canvas[EXPANDO_KEY] = { + initial: { + height: renderHeight, + width: renderWidth, + style: { + display: style.display, + height: style.height, + width: style.width + } + } + }; + style.display = style.display || 'block'; + style.boxSizing = style.boxSizing || 'border-box'; + if (isNullOrEmpty(renderWidth)) { + const displayWidth = readUsedSize(canvas, 'width'); + if (displayWidth !== undefined) { + canvas.width = displayWidth; + } + } + if (isNullOrEmpty(renderHeight)) { + if (canvas.style.height === '') { + canvas.height = canvas.width / (aspectRatio || 2); + } else { + const displayHeight = readUsedSize(canvas, 'height'); + if (displayHeight !== undefined) { + canvas.height = displayHeight; + } + } + } + return canvas; +} +const eventListenerOptions = supportsEventListenerOptions ? {passive: true} : false; +function addListener(node, type, listener) { + node.addEventListener(type, listener, eventListenerOptions); +} +function removeListener(chart, type, listener) { + chart.canvas.removeEventListener(type, listener, eventListenerOptions); +} +function fromNativeEvent(event, chart) { + const type = EVENT_TYPES[event.type] || event.type; + const {x, y} = getRelativePosition$1(event, chart); + return { + type, + chart, + native: event, + x: x !== undefined ? x : null, + y: y !== undefined ? y : null, + }; +} +function nodeListContains(nodeList, canvas) { + for (const node of nodeList) { + if (node === canvas || node.contains(canvas)) { + return true; + } + } +} +function createAttachObserver(chart, type, listener) { + const canvas = chart.canvas; + const observer = new MutationObserver(entries => { + let trigger = false; + for (const entry of entries) { + trigger = trigger || nodeListContains(entry.addedNodes, canvas); + trigger = trigger && !nodeListContains(entry.removedNodes, canvas); + } + if (trigger) { + listener(); + } + }); + observer.observe(document, {childList: true, subtree: true}); + return observer; +} +function createDetachObserver(chart, type, listener) { + const canvas = chart.canvas; + const observer = new MutationObserver(entries => { + let trigger = false; + for (const entry of entries) { + trigger = trigger || nodeListContains(entry.removedNodes, canvas); + trigger = trigger && !nodeListContains(entry.addedNodes, canvas); + } + if (trigger) { + listener(); + } + }); + observer.observe(document, {childList: true, subtree: true}); + return observer; +} +const drpListeningCharts = new Map(); +let oldDevicePixelRatio = 0; +function onWindowResize() { + const dpr = window.devicePixelRatio; + if (dpr === oldDevicePixelRatio) { + return; + } + oldDevicePixelRatio = dpr; + drpListeningCharts.forEach((resize, chart) => { + if (chart.currentDevicePixelRatio !== dpr) { + resize(); + } + }); +} +function listenDevicePixelRatioChanges(chart, resize) { + if (!drpListeningCharts.size) { + window.addEventListener('resize', onWindowResize); + } + drpListeningCharts.set(chart, resize); +} +function unlistenDevicePixelRatioChanges(chart) { + drpListeningCharts.delete(chart); + if (!drpListeningCharts.size) { + window.removeEventListener('resize', onWindowResize); + } +} +function createResizeObserver(chart, type, listener) { + const canvas = chart.canvas; + const container = canvas && _getParentNode(canvas); + if (!container) { + return; + } + const resize = throttled((width, height) => { + const w = container.clientWidth; + listener(width, height); + if (w < container.clientWidth) { + listener(); + } + }, window); + const observer = new ResizeObserver(entries => { + const entry = entries[0]; + const width = entry.contentRect.width; + const height = entry.contentRect.height; + if (width === 0 && height === 0) { + return; + } + resize(width, height); + }); + observer.observe(container); + listenDevicePixelRatioChanges(chart, resize); + return observer; +} +function releaseObserver(chart, type, observer) { + if (observer) { + observer.disconnect(); + } + if (type === 'resize') { + unlistenDevicePixelRatioChanges(chart); + } +} +function createProxyAndListen(chart, type, listener) { + const canvas = chart.canvas; + const proxy = throttled((event) => { + if (chart.ctx !== null) { + listener(fromNativeEvent(event, chart)); + } + }, chart, (args) => { + const event = args[0]; + return [event, event.offsetX, event.offsetY]; + }); + addListener(canvas, type, proxy); + return proxy; +} +class DomPlatform extends BasePlatform { + acquireContext(canvas, aspectRatio) { + const context = canvas && canvas.getContext && canvas.getContext('2d'); + if (context && context.canvas === canvas) { + initCanvas(canvas, aspectRatio); + return context; + } + return null; + } + releaseContext(context) { + const canvas = context.canvas; + if (!canvas[EXPANDO_KEY]) { + return false; + } + const initial = canvas[EXPANDO_KEY].initial; + ['height', 'width'].forEach((prop) => { + const value = initial[prop]; + if (isNullOrUndef(value)) { + canvas.removeAttribute(prop); + } else { + canvas.setAttribute(prop, value); + } + }); + const style = initial.style || {}; + Object.keys(style).forEach((key) => { + canvas.style[key] = style[key]; + }); + canvas.width = canvas.width; + delete canvas[EXPANDO_KEY]; + return true; + } + addEventListener(chart, type, listener) { + this.removeEventListener(chart, type); + const proxies = chart.$proxies || (chart.$proxies = {}); + const handlers = { + attach: createAttachObserver, + detach: createDetachObserver, + resize: createResizeObserver + }; + const handler = handlers[type] || createProxyAndListen; + proxies[type] = handler(chart, type, listener); + } + removeEventListener(chart, type) { + const proxies = chart.$proxies || (chart.$proxies = {}); + const proxy = proxies[type]; + if (!proxy) { + return; + } + const handlers = { + attach: releaseObserver, + detach: releaseObserver, + resize: releaseObserver + }; + const handler = handlers[type] || removeListener; + handler(chart, type, proxy); + proxies[type] = undefined; + } + getDevicePixelRatio() { + return window.devicePixelRatio; + } + getMaximumSize(canvas, width, height, aspectRatio) { + return getMaximumSize(canvas, width, height, aspectRatio); + } + isAttached(canvas) { + const container = _getParentNode(canvas); + return !!(container && container.isConnected); + } +} + +function _detectPlatform(canvas) { + if (!_isDomSupported() || (typeof OffscreenCanvas !== 'undefined' && canvas instanceof OffscreenCanvas)) { + return BasicPlatform; + } + return DomPlatform; +} + +var platforms = /*#__PURE__*/Object.freeze({ +__proto__: null, +_detectPlatform: _detectPlatform, +BasePlatform: BasePlatform, +BasicPlatform: BasicPlatform, +DomPlatform: DomPlatform +}); + +const transparent = 'transparent'; +const interpolators = { + boolean(from, to, factor) { + return factor > 0.5 ? to : from; + }, + color(from, to, factor) { + const c0 = color(from || transparent); + const c1 = c0.valid && color(to || transparent); + return c1 && c1.valid + ? c1.mix(c0, factor).hexString() + : to; + }, + number(from, to, factor) { + return from + (to - from) * factor; + } +}; +class Animation { + constructor(cfg, target, prop, to) { + const currentValue = target[prop]; + to = resolve([cfg.to, to, currentValue, cfg.from]); + const from = resolve([cfg.from, currentValue, to]); + this._active = true; + this._fn = cfg.fn || interpolators[cfg.type || typeof from]; + this._easing = effects[cfg.easing] || effects.linear; + this._start = Math.floor(Date.now() + (cfg.delay || 0)); + this._duration = this._total = Math.floor(cfg.duration); + this._loop = !!cfg.loop; + this._target = target; + this._prop = prop; + this._from = from; + this._to = to; + this._promises = undefined; + } + active() { + return this._active; + } + update(cfg, to, date) { + if (this._active) { + this._notify(false); + const currentValue = this._target[this._prop]; + const elapsed = date - this._start; + const remain = this._duration - elapsed; + this._start = date; + this._duration = Math.floor(Math.max(remain, cfg.duration)); + this._total += elapsed; + this._loop = !!cfg.loop; + this._to = resolve([cfg.to, to, currentValue, cfg.from]); + this._from = resolve([cfg.from, currentValue, to]); + } + } + cancel() { + if (this._active) { + this.tick(Date.now()); + this._active = false; + this._notify(false); + } + } + tick(date) { + const elapsed = date - this._start; + const duration = this._duration; + const prop = this._prop; + const from = this._from; + const loop = this._loop; + const to = this._to; + let factor; + this._active = from !== to && (loop || (elapsed < duration)); + if (!this._active) { + this._target[prop] = to; + this._notify(true); + return; + } + if (elapsed < 0) { + this._target[prop] = from; + return; + } + factor = (elapsed / duration) % 2; + factor = loop && factor > 1 ? 2 - factor : factor; + factor = this._easing(Math.min(1, Math.max(0, factor))); + this._target[prop] = this._fn(from, to, factor); + } + wait() { + const promises = this._promises || (this._promises = []); + return new Promise((res, rej) => { + promises.push({res, rej}); + }); + } + _notify(resolved) { + const method = resolved ? 'res' : 'rej'; + const promises = this._promises || []; + for (let i = 0; i < promises.length; i++) { + promises[i][method](); + } + } +} + +const numbers = ['x', 'y', 'borderWidth', 'radius', 'tension']; +const colors = ['color', 'borderColor', 'backgroundColor']; +defaults.set('animation', { + delay: undefined, + duration: 1000, + easing: 'easeOutQuart', + fn: undefined, + from: undefined, + loop: undefined, + to: undefined, + type: undefined, +}); +const animationOptions = Object.keys(defaults.animation); +defaults.describe('animation', { + _fallback: false, + _indexable: false, + _scriptable: (name) => name !== 'onProgress' && name !== 'onComplete' && name !== 'fn', +}); +defaults.set('animations', { + colors: { + type: 'color', + properties: colors + }, + numbers: { + type: 'number', + properties: numbers + }, +}); +defaults.describe('animations', { + _fallback: 'animation', +}); +defaults.set('transitions', { + active: { + animation: { + duration: 400 + } + }, + resize: { + animation: { + duration: 0 + } + }, + show: { + animations: { + colors: { + from: 'transparent' + }, + visible: { + type: 'boolean', + duration: 0 + }, + } + }, + hide: { + animations: { + colors: { + to: 'transparent' + }, + visible: { + type: 'boolean', + easing: 'linear', + fn: v => v | 0 + }, + } + } +}); +class Animations { + constructor(chart, config) { + this._chart = chart; + this._properties = new Map(); + this.configure(config); + } + configure(config) { + if (!isObject(config)) { + return; + } + const animatedProps = this._properties; + Object.getOwnPropertyNames(config).forEach(key => { + const cfg = config[key]; + if (!isObject(cfg)) { + return; + } + const resolved = {}; + for (const option of animationOptions) { + resolved[option] = cfg[option]; + } + (isArray(cfg.properties) && cfg.properties || [key]).forEach((prop) => { + if (prop === key || !animatedProps.has(prop)) { + animatedProps.set(prop, resolved); + } + }); + }); + } + _animateOptions(target, values) { + const newOptions = values.options; + const options = resolveTargetOptions(target, newOptions); + if (!options) { + return []; + } + const animations = this._createAnimations(options, newOptions); + if (newOptions.$shared) { + awaitAll(target.options.$animations, newOptions).then(() => { + target.options = newOptions; + }, () => { + }); + } + return animations; + } + _createAnimations(target, values) { + const animatedProps = this._properties; + const animations = []; + const running = target.$animations || (target.$animations = {}); + const props = Object.keys(values); + const date = Date.now(); + let i; + for (i = props.length - 1; i >= 0; --i) { + const prop = props[i]; + if (prop.charAt(0) === '$') { + continue; + } + if (prop === 'options') { + animations.push(...this._animateOptions(target, values)); + continue; + } + const value = values[prop]; + let animation = running[prop]; + const cfg = animatedProps.get(prop); + if (animation) { + if (cfg && animation.active()) { + animation.update(cfg, value, date); + continue; + } else { + animation.cancel(); + } + } + if (!cfg || !cfg.duration) { + target[prop] = value; + continue; + } + running[prop] = animation = new Animation(cfg, target, prop, value); + animations.push(animation); + } + return animations; + } + update(target, values) { + if (this._properties.size === 0) { + Object.assign(target, values); + return; + } + const animations = this._createAnimations(target, values); + if (animations.length) { + animator.add(this._chart, animations); + return true; + } + } +} +function awaitAll(animations, properties) { + const running = []; + const keys = Object.keys(properties); + for (let i = 0; i < keys.length; i++) { + const anim = animations[keys[i]]; + if (anim && anim.active()) { + running.push(anim.wait()); + } + } + return Promise.all(running); +} +function resolveTargetOptions(target, newOptions) { + if (!newOptions) { + return; + } + let options = target.options; + if (!options) { + target.options = newOptions; + return; + } + if (options.$shared) { + target.options = options = Object.assign({}, options, {$shared: false, $animations: {}}); + } + return options; +} + +function scaleClip(scale, allowedOverflow) { + const opts = scale && scale.options || {}; + const reverse = opts.reverse; + const min = opts.min === undefined ? allowedOverflow : 0; + const max = opts.max === undefined ? allowedOverflow : 0; + return { + start: reverse ? max : min, + end: reverse ? min : max + }; +} +function defaultClip(xScale, yScale, allowedOverflow) { + if (allowedOverflow === false) { + return false; + } + const x = scaleClip(xScale, allowedOverflow); + const y = scaleClip(yScale, allowedOverflow); + return { + top: y.end, + right: x.end, + bottom: y.start, + left: x.start + }; +} +function toClip(value) { + let t, r, b, l; + if (isObject(value)) { + t = value.top; + r = value.right; + b = value.bottom; + l = value.left; + } else { + t = r = b = l = value; + } + return { + top: t, + right: r, + bottom: b, + left: l, + disabled: value === false + }; +} +function getSortedDatasetIndices(chart, filterVisible) { + const keys = []; + const metasets = chart._getSortedDatasetMetas(filterVisible); + let i, ilen; + for (i = 0, ilen = metasets.length; i < ilen; ++i) { + keys.push(metasets[i].index); + } + return keys; +} +function applyStack(stack, value, dsIndex, options = {}) { + const keys = stack.keys; + const singleMode = options.mode === 'single'; + let i, ilen, datasetIndex, otherValue; + if (value === null) { + return; + } + for (i = 0, ilen = keys.length; i < ilen; ++i) { + datasetIndex = +keys[i]; + if (datasetIndex === dsIndex) { + if (options.all) { + continue; + } + break; + } + otherValue = stack.values[datasetIndex]; + if (isNumberFinite(otherValue) && (singleMode || (value === 0 || sign(value) === sign(otherValue)))) { + value += otherValue; + } + } + return value; +} +function convertObjectDataToArray(data) { + const keys = Object.keys(data); + const adata = new Array(keys.length); + let i, ilen, key; + for (i = 0, ilen = keys.length; i < ilen; ++i) { + key = keys[i]; + adata[i] = { + x: key, + y: data[key] + }; + } + return adata; +} +function isStacked(scale, meta) { + const stacked = scale && scale.options.stacked; + return stacked || (stacked === undefined && meta.stack !== undefined); +} +function getStackKey(indexScale, valueScale, meta) { + return `${indexScale.id}.${valueScale.id}.${meta.stack || meta.type}`; +} +function getUserBounds(scale) { + const {min, max, minDefined, maxDefined} = scale.getUserBounds(); + return { + min: minDefined ? min : Number.NEGATIVE_INFINITY, + max: maxDefined ? max : Number.POSITIVE_INFINITY + }; +} +function getOrCreateStack(stacks, stackKey, indexValue) { + const subStack = stacks[stackKey] || (stacks[stackKey] = {}); + return subStack[indexValue] || (subStack[indexValue] = {}); +} +function getLastIndexInStack(stack, vScale, positive, type) { + for (const meta of vScale.getMatchingVisibleMetas(type).reverse()) { + const value = stack[meta.index]; + if ((positive && value > 0) || (!positive && value < 0)) { + return meta.index; + } + } + return null; +} +function updateStacks(controller, parsed) { + const {chart, _cachedMeta: meta} = controller; + const stacks = chart._stacks || (chart._stacks = {}); + const {iScale, vScale, index: datasetIndex} = meta; + const iAxis = iScale.axis; + const vAxis = vScale.axis; + const key = getStackKey(iScale, vScale, meta); + const ilen = parsed.length; + let stack; + for (let i = 0; i < ilen; ++i) { + const item = parsed[i]; + const {[iAxis]: index, [vAxis]: value} = item; + const itemStacks = item._stacks || (item._stacks = {}); + stack = itemStacks[vAxis] = getOrCreateStack(stacks, key, index); + stack[datasetIndex] = value; + stack._top = getLastIndexInStack(stack, vScale, true, meta.type); + stack._bottom = getLastIndexInStack(stack, vScale, false, meta.type); + } +} +function getFirstScaleId(chart, axis) { + const scales = chart.scales; + return Object.keys(scales).filter(key => scales[key].axis === axis).shift(); +} +function createDatasetContext(parent, index) { + return createContext(parent, + { + active: false, + dataset: undefined, + datasetIndex: index, + index, + mode: 'default', + type: 'dataset' + } + ); +} +function createDataContext(parent, index, element) { + return createContext(parent, { + active: false, + dataIndex: index, + parsed: undefined, + raw: undefined, + element, + index, + mode: 'default', + type: 'data' + }); +} +function clearStacks(meta, items) { + const datasetIndex = meta.controller.index; + const axis = meta.vScale && meta.vScale.axis; + if (!axis) { + return; + } + items = items || meta._parsed; + for (const parsed of items) { + const stacks = parsed._stacks; + if (!stacks || stacks[axis] === undefined || stacks[axis][datasetIndex] === undefined) { + return; + } + delete stacks[axis][datasetIndex]; + } +} +const isDirectUpdateMode = (mode) => mode === 'reset' || mode === 'none'; +const cloneIfNotShared = (cached, shared) => shared ? cached : Object.assign({}, cached); +const createStack = (canStack, meta, chart) => canStack && !meta.hidden && meta._stacked + && {keys: getSortedDatasetIndices(chart, true), values: null}; +class DatasetController { + constructor(chart, datasetIndex) { + this.chart = chart; + this._ctx = chart.ctx; + this.index = datasetIndex; + this._cachedDataOpts = {}; + this._cachedMeta = this.getMeta(); + this._type = this._cachedMeta.type; + this.options = undefined; + this._parsing = false; + this._data = undefined; + this._objectData = undefined; + this._sharedOptions = undefined; + this._drawStart = undefined; + this._drawCount = undefined; + this.enableOptionSharing = false; + this.$context = undefined; + this._syncList = []; + this.initialize(); + } + initialize() { + const meta = this._cachedMeta; + this.configure(); + this.linkScales(); + meta._stacked = isStacked(meta.vScale, meta); + this.addElements(); + } + updateIndex(datasetIndex) { + if (this.index !== datasetIndex) { + clearStacks(this._cachedMeta); + } + this.index = datasetIndex; + } + linkScales() { + const chart = this.chart; + const meta = this._cachedMeta; + const dataset = this.getDataset(); + const chooseId = (axis, x, y, r) => axis === 'x' ? x : axis === 'r' ? r : y; + const xid = meta.xAxisID = valueOrDefault(dataset.xAxisID, getFirstScaleId(chart, 'x')); + const yid = meta.yAxisID = valueOrDefault(dataset.yAxisID, getFirstScaleId(chart, 'y')); + const rid = meta.rAxisID = valueOrDefault(dataset.rAxisID, getFirstScaleId(chart, 'r')); + const indexAxis = meta.indexAxis; + const iid = meta.iAxisID = chooseId(indexAxis, xid, yid, rid); + const vid = meta.vAxisID = chooseId(indexAxis, yid, xid, rid); + meta.xScale = this.getScaleForId(xid); + meta.yScale = this.getScaleForId(yid); + meta.rScale = this.getScaleForId(rid); + meta.iScale = this.getScaleForId(iid); + meta.vScale = this.getScaleForId(vid); + } + getDataset() { + return this.chart.data.datasets[this.index]; + } + getMeta() { + return this.chart.getDatasetMeta(this.index); + } + getScaleForId(scaleID) { + return this.chart.scales[scaleID]; + } + _getOtherScale(scale) { + const meta = this._cachedMeta; + return scale === meta.iScale + ? meta.vScale + : meta.iScale; + } + reset() { + this._update('reset'); + } + _destroy() { + const meta = this._cachedMeta; + if (this._data) { + unlistenArrayEvents(this._data, this); + } + if (meta._stacked) { + clearStacks(meta); + } + } + _dataCheck() { + const dataset = this.getDataset(); + const data = dataset.data || (dataset.data = []); + const _data = this._data; + if (isObject(data)) { + this._data = convertObjectDataToArray(data); + } else if (_data !== data) { + if (_data) { + unlistenArrayEvents(_data, this); + const meta = this._cachedMeta; + clearStacks(meta); + meta._parsed = []; + } + if (data && Object.isExtensible(data)) { + listenArrayEvents(data, this); + } + this._syncList = []; + this._data = data; + } + } + addElements() { + const meta = this._cachedMeta; + this._dataCheck(); + if (this.datasetElementType) { + meta.dataset = new this.datasetElementType(); + } + } + buildOrUpdateElements(resetNewElements) { + const meta = this._cachedMeta; + const dataset = this.getDataset(); + let stackChanged = false; + this._dataCheck(); + const oldStacked = meta._stacked; + meta._stacked = isStacked(meta.vScale, meta); + if (meta.stack !== dataset.stack) { + stackChanged = true; + clearStacks(meta); + meta.stack = dataset.stack; + } + this._resyncElements(resetNewElements); + if (stackChanged || oldStacked !== meta._stacked) { + updateStacks(this, meta._parsed); + } + } + configure() { + const config = this.chart.config; + const scopeKeys = config.datasetScopeKeys(this._type); + const scopes = config.getOptionScopes(this.getDataset(), scopeKeys, true); + this.options = config.createResolver(scopes, this.getContext()); + this._parsing = this.options.parsing; + this._cachedDataOpts = {}; + } + parse(start, count) { + const {_cachedMeta: meta, _data: data} = this; + const {iScale, _stacked} = meta; + const iAxis = iScale.axis; + let sorted = start === 0 && count === data.length ? true : meta._sorted; + let prev = start > 0 && meta._parsed[start - 1]; + let i, cur, parsed; + if (this._parsing === false) { + meta._parsed = data; + meta._sorted = true; + parsed = data; + } else { + if (isArray(data[start])) { + parsed = this.parseArrayData(meta, data, start, count); + } else if (isObject(data[start])) { + parsed = this.parseObjectData(meta, data, start, count); + } else { + parsed = this.parsePrimitiveData(meta, data, start, count); + } + const isNotInOrderComparedToPrev = () => cur[iAxis] === null || (prev && cur[iAxis] < prev[iAxis]); + for (i = 0; i < count; ++i) { + meta._parsed[i + start] = cur = parsed[i]; + if (sorted) { + if (isNotInOrderComparedToPrev()) { + sorted = false; + } + prev = cur; + } + } + meta._sorted = sorted; + } + if (_stacked) { + updateStacks(this, parsed); + } + } + parsePrimitiveData(meta, data, start, count) { + const {iScale, vScale} = meta; + const iAxis = iScale.axis; + const vAxis = vScale.axis; + const labels = iScale.getLabels(); + const singleScale = iScale === vScale; + const parsed = new Array(count); + let i, ilen, index; + for (i = 0, ilen = count; i < ilen; ++i) { + index = i + start; + parsed[i] = { + [iAxis]: singleScale || iScale.parse(labels[index], index), + [vAxis]: vScale.parse(data[index], index) + }; + } + return parsed; + } + parseArrayData(meta, data, start, count) { + const {xScale, yScale} = meta; + const parsed = new Array(count); + let i, ilen, index, item; + for (i = 0, ilen = count; i < ilen; ++i) { + index = i + start; + item = data[index]; + parsed[i] = { + x: xScale.parse(item[0], index), + y: yScale.parse(item[1], index) + }; + } + return parsed; + } + parseObjectData(meta, data, start, count) { + const {xScale, yScale} = meta; + const {xAxisKey = 'x', yAxisKey = 'y'} = this._parsing; + const parsed = new Array(count); + let i, ilen, index, item; + for (i = 0, ilen = count; i < ilen; ++i) { + index = i + start; + item = data[index]; + parsed[i] = { + x: xScale.parse(resolveObjectKey(item, xAxisKey), index), + y: yScale.parse(resolveObjectKey(item, yAxisKey), index) + }; + } + return parsed; + } + getParsed(index) { + return this._cachedMeta._parsed[index]; + } + getDataElement(index) { + return this._cachedMeta.data[index]; + } + applyStack(scale, parsed, mode) { + const chart = this.chart; + const meta = this._cachedMeta; + const value = parsed[scale.axis]; + const stack = { + keys: getSortedDatasetIndices(chart, true), + values: parsed._stacks[scale.axis] + }; + return applyStack(stack, value, meta.index, {mode}); + } + updateRangeFromParsed(range, scale, parsed, stack) { + const parsedValue = parsed[scale.axis]; + let value = parsedValue === null ? NaN : parsedValue; + const values = stack && parsed._stacks[scale.axis]; + if (stack && values) { + stack.values = values; + value = applyStack(stack, parsedValue, this._cachedMeta.index); + } + range.min = Math.min(range.min, value); + range.max = Math.max(range.max, value); + } + getMinMax(scale, canStack) { + const meta = this._cachedMeta; + const _parsed = meta._parsed; + const sorted = meta._sorted && scale === meta.iScale; + const ilen = _parsed.length; + const otherScale = this._getOtherScale(scale); + const stack = createStack(canStack, meta, this.chart); + const range = {min: Number.POSITIVE_INFINITY, max: Number.NEGATIVE_INFINITY}; + const {min: otherMin, max: otherMax} = getUserBounds(otherScale); + let i, parsed; + function _skip() { + parsed = _parsed[i]; + const otherValue = parsed[otherScale.axis]; + return !isNumberFinite(parsed[scale.axis]) || otherMin > otherValue || otherMax < otherValue; + } + for (i = 0; i < ilen; ++i) { + if (_skip()) { + continue; + } + this.updateRangeFromParsed(range, scale, parsed, stack); + if (sorted) { + break; + } + } + if (sorted) { + for (i = ilen - 1; i >= 0; --i) { + if (_skip()) { + continue; + } + this.updateRangeFromParsed(range, scale, parsed, stack); + break; + } + } + return range; + } + getAllParsedValues(scale) { + const parsed = this._cachedMeta._parsed; + const values = []; + let i, ilen, value; + for (i = 0, ilen = parsed.length; i < ilen; ++i) { + value = parsed[i][scale.axis]; + if (isNumberFinite(value)) { + values.push(value); + } + } + return values; + } + getMaxOverflow() { + return false; + } + getLabelAndValue(index) { + const meta = this._cachedMeta; + const iScale = meta.iScale; + const vScale = meta.vScale; + const parsed = this.getParsed(index); + return { + label: iScale ? '' + iScale.getLabelForValue(parsed[iScale.axis]) : '', + value: vScale ? '' + vScale.getLabelForValue(parsed[vScale.axis]) : '' + }; + } + _update(mode) { + const meta = this._cachedMeta; + this.update(mode || 'default'); + meta._clip = toClip(valueOrDefault(this.options.clip, defaultClip(meta.xScale, meta.yScale, this.getMaxOverflow()))); + } + update(mode) {} + draw() { + const ctx = this._ctx; + const chart = this.chart; + const meta = this._cachedMeta; + const elements = meta.data || []; + const area = chart.chartArea; + const active = []; + const start = this._drawStart || 0; + const count = this._drawCount || (elements.length - start); + const drawActiveElementsOnTop = this.options.drawActiveElementsOnTop; + let i; + if (meta.dataset) { + meta.dataset.draw(ctx, area, start, count); + } + for (i = start; i < start + count; ++i) { + const element = elements[i]; + if (element.hidden) { + continue; + } + if (element.active && drawActiveElementsOnTop) { + active.push(element); + } else { + element.draw(ctx, area); + } + } + for (i = 0; i < active.length; ++i) { + active[i].draw(ctx, area); + } + } + getStyle(index, active) { + const mode = active ? 'active' : 'default'; + return index === undefined && this._cachedMeta.dataset + ? this.resolveDatasetElementOptions(mode) + : this.resolveDataElementOptions(index || 0, mode); + } + getContext(index, active, mode) { + const dataset = this.getDataset(); + let context; + if (index >= 0 && index < this._cachedMeta.data.length) { + const element = this._cachedMeta.data[index]; + context = element.$context || + (element.$context = createDataContext(this.getContext(), index, element)); + context.parsed = this.getParsed(index); + context.raw = dataset.data[index]; + context.index = context.dataIndex = index; + } else { + context = this.$context || + (this.$context = createDatasetContext(this.chart.getContext(), this.index)); + context.dataset = dataset; + context.index = context.datasetIndex = this.index; + } + context.active = !!active; + context.mode = mode; + return context; + } + resolveDatasetElementOptions(mode) { + return this._resolveElementOptions(this.datasetElementType.id, mode); + } + resolveDataElementOptions(index, mode) { + return this._resolveElementOptions(this.dataElementType.id, mode, index); + } + _resolveElementOptions(elementType, mode = 'default', index) { + const active = mode === 'active'; + const cache = this._cachedDataOpts; + const cacheKey = elementType + '-' + mode; + const cached = cache[cacheKey]; + const sharing = this.enableOptionSharing && defined(index); + if (cached) { + return cloneIfNotShared(cached, sharing); + } + const config = this.chart.config; + const scopeKeys = config.datasetElementScopeKeys(this._type, elementType); + const prefixes = active ? [`${elementType}Hover`, 'hover', elementType, ''] : [elementType, '']; + const scopes = config.getOptionScopes(this.getDataset(), scopeKeys); + const names = Object.keys(defaults.elements[elementType]); + const context = () => this.getContext(index, active); + const values = config.resolveNamedOptions(scopes, names, context, prefixes); + if (values.$shared) { + values.$shared = sharing; + cache[cacheKey] = Object.freeze(cloneIfNotShared(values, sharing)); + } + return values; + } + _resolveAnimations(index, transition, active) { + const chart = this.chart; + const cache = this._cachedDataOpts; + const cacheKey = `animation-${transition}`; + const cached = cache[cacheKey]; + if (cached) { + return cached; + } + let options; + if (chart.options.animation !== false) { + const config = this.chart.config; + const scopeKeys = config.datasetAnimationScopeKeys(this._type, transition); + const scopes = config.getOptionScopes(this.getDataset(), scopeKeys); + options = config.createResolver(scopes, this.getContext(index, active, transition)); + } + const animations = new Animations(chart, options && options.animations); + if (options && options._cacheable) { + cache[cacheKey] = Object.freeze(animations); + } + return animations; + } + getSharedOptions(options) { + if (!options.$shared) { + return; + } + return this._sharedOptions || (this._sharedOptions = Object.assign({}, options)); + } + includeOptions(mode, sharedOptions) { + return !sharedOptions || isDirectUpdateMode(mode) || this.chart._animationsDisabled; + } + updateElement(element, index, properties, mode) { + if (isDirectUpdateMode(mode)) { + Object.assign(element, properties); + } else { + this._resolveAnimations(index, mode).update(element, properties); + } + } + updateSharedOptions(sharedOptions, mode, newOptions) { + if (sharedOptions && !isDirectUpdateMode(mode)) { + this._resolveAnimations(undefined, mode).update(sharedOptions, newOptions); + } + } + _setStyle(element, index, mode, active) { + element.active = active; + const options = this.getStyle(index, active); + this._resolveAnimations(index, mode, active).update(element, { + options: (!active && this.getSharedOptions(options)) || options + }); + } + removeHoverStyle(element, datasetIndex, index) { + this._setStyle(element, index, 'active', false); + } + setHoverStyle(element, datasetIndex, index) { + this._setStyle(element, index, 'active', true); + } + _removeDatasetHoverStyle() { + const element = this._cachedMeta.dataset; + if (element) { + this._setStyle(element, undefined, 'active', false); + } + } + _setDatasetHoverStyle() { + const element = this._cachedMeta.dataset; + if (element) { + this._setStyle(element, undefined, 'active', true); + } + } + _resyncElements(resetNewElements) { + const data = this._data; + const elements = this._cachedMeta.data; + for (const [method, arg1, arg2] of this._syncList) { + this[method](arg1, arg2); + } + this._syncList = []; + const numMeta = elements.length; + const numData = data.length; + const count = Math.min(numData, numMeta); + if (count) { + this.parse(0, count); + } + if (numData > numMeta) { + this._insertElements(numMeta, numData - numMeta, resetNewElements); + } else if (numData < numMeta) { + this._removeElements(numData, numMeta - numData); + } + } + _insertElements(start, count, resetNewElements = true) { + const meta = this._cachedMeta; + const data = meta.data; + const end = start + count; + let i; + const move = (arr) => { + arr.length += count; + for (i = arr.length - 1; i >= end; i--) { + arr[i] = arr[i - count]; + } + }; + move(data); + for (i = start; i < end; ++i) { + data[i] = new this.dataElementType(); + } + if (this._parsing) { + move(meta._parsed); + } + this.parse(start, count); + if (resetNewElements) { + this.updateElements(data, start, count, 'reset'); + } + } + updateElements(element, start, count, mode) {} + _removeElements(start, count) { + const meta = this._cachedMeta; + if (this._parsing) { + const removed = meta._parsed.splice(start, count); + if (meta._stacked) { + clearStacks(meta, removed); + } + } + meta.data.splice(start, count); + } + _sync(args) { + if (this._parsing) { + this._syncList.push(args); + } else { + const [method, arg1, arg2] = args; + this[method](arg1, arg2); + } + this.chart._dataChanges.push([this.index, ...args]); + } + _onDataPush() { + const count = arguments.length; + this._sync(['_insertElements', this.getDataset().data.length - count, count]); + } + _onDataPop() { + this._sync(['_removeElements', this._cachedMeta.data.length - 1, 1]); + } + _onDataShift() { + this._sync(['_removeElements', 0, 1]); + } + _onDataSplice(start, count) { + if (count) { + this._sync(['_removeElements', start, count]); + } + const newCount = arguments.length - 2; + if (newCount) { + this._sync(['_insertElements', start, newCount]); + } + } + _onDataUnshift() { + this._sync(['_insertElements', 0, arguments.length]); + } +} +DatasetController.defaults = {}; +DatasetController.prototype.datasetElementType = null; +DatasetController.prototype.dataElementType = null; + +class Element { + constructor() { + this.x = undefined; + this.y = undefined; + this.active = false; + this.options = undefined; + this.$animations = undefined; + } + tooltipPosition(useFinalPosition) { + const {x, y} = this.getProps(['x', 'y'], useFinalPosition); + return {x, y}; + } + hasValue() { + return isNumber(this.x) && isNumber(this.y); + } + getProps(props, final) { + const anims = this.$animations; + if (!final || !anims) { + return this; + } + const ret = {}; + props.forEach(prop => { + ret[prop] = anims[prop] && anims[prop].active() ? anims[prop]._to : this[prop]; + }); + return ret; + } +} +Element.defaults = {}; +Element.defaultRoutes = undefined; + +const formatters = { + values(value) { + return isArray(value) ? value : '' + value; + }, + numeric(tickValue, index, ticks) { + if (tickValue === 0) { + return '0'; + } + const locale = this.chart.options.locale; + let notation; + let delta = tickValue; + if (ticks.length > 1) { + const maxTick = Math.max(Math.abs(ticks[0].value), Math.abs(ticks[ticks.length - 1].value)); + if (maxTick < 1e-4 || maxTick > 1e+15) { + notation = 'scientific'; + } + delta = calculateDelta(tickValue, ticks); + } + const logDelta = log10(Math.abs(delta)); + const numDecimal = Math.max(Math.min(-1 * Math.floor(logDelta), 20), 0); + const options = {notation, minimumFractionDigits: numDecimal, maximumFractionDigits: numDecimal}; + Object.assign(options, this.options.ticks.format); + return formatNumber(tickValue, locale, options); + }, + logarithmic(tickValue, index, ticks) { + if (tickValue === 0) { + return '0'; + } + const remain = tickValue / (Math.pow(10, Math.floor(log10(tickValue)))); + if (remain === 1 || remain === 2 || remain === 5) { + return formatters.numeric.call(this, tickValue, index, ticks); + } + return ''; + } +}; +function calculateDelta(tickValue, ticks) { + let delta = ticks.length > 3 ? ticks[2].value - ticks[1].value : ticks[1].value - ticks[0].value; + if (Math.abs(delta) >= 1 && tickValue !== Math.floor(tickValue)) { + delta = tickValue - Math.floor(tickValue); + } + return delta; +} +var Ticks = {formatters}; + +defaults.set('scale', { + display: true, + offset: false, + reverse: false, + beginAtZero: false, + bounds: 'ticks', + grace: 0, + grid: { + display: true, + lineWidth: 1, + drawBorder: true, + drawOnChartArea: true, + drawTicks: true, + tickLength: 8, + tickWidth: (_ctx, options) => options.lineWidth, + tickColor: (_ctx, options) => options.color, + offset: false, + borderDash: [], + borderDashOffset: 0.0, + borderWidth: 1 + }, + title: { + display: false, + text: '', + padding: { + top: 4, + bottom: 4 + } + }, + ticks: { + minRotation: 0, + maxRotation: 50, + mirror: false, + textStrokeWidth: 0, + textStrokeColor: '', + padding: 3, + display: true, + autoSkip: true, + autoSkipPadding: 3, + labelOffset: 0, + callback: Ticks.formatters.values, + minor: {}, + major: {}, + align: 'center', + crossAlign: 'near', + showLabelBackdrop: false, + backdropColor: 'rgba(255, 255, 255, 0.75)', + backdropPadding: 2, + } +}); +defaults.route('scale.ticks', 'color', '', 'color'); +defaults.route('scale.grid', 'color', '', 'borderColor'); +defaults.route('scale.grid', 'borderColor', '', 'borderColor'); +defaults.route('scale.title', 'color', '', 'color'); +defaults.describe('scale', { + _fallback: false, + _scriptable: (name) => !name.startsWith('before') && !name.startsWith('after') && name !== 'callback' && name !== 'parser', + _indexable: (name) => name !== 'borderDash' && name !== 'tickBorderDash', +}); +defaults.describe('scales', { + _fallback: 'scale', +}); +defaults.describe('scale.ticks', { + _scriptable: (name) => name !== 'backdropPadding' && name !== 'callback', + _indexable: (name) => name !== 'backdropPadding', +}); + +function autoSkip(scale, ticks) { + const tickOpts = scale.options.ticks; + const ticksLimit = tickOpts.maxTicksLimit || determineMaxTicks(scale); + const majorIndices = tickOpts.major.enabled ? getMajorIndices(ticks) : []; + const numMajorIndices = majorIndices.length; + const first = majorIndices[0]; + const last = majorIndices[numMajorIndices - 1]; + const newTicks = []; + if (numMajorIndices > ticksLimit) { + skipMajors(ticks, newTicks, majorIndices, numMajorIndices / ticksLimit); + return newTicks; + } + const spacing = calculateSpacing(majorIndices, ticks, ticksLimit); + if (numMajorIndices > 0) { + let i, ilen; + const avgMajorSpacing = numMajorIndices > 1 ? Math.round((last - first) / (numMajorIndices - 1)) : null; + skip(ticks, newTicks, spacing, isNullOrUndef(avgMajorSpacing) ? 0 : first - avgMajorSpacing, first); + for (i = 0, ilen = numMajorIndices - 1; i < ilen; i++) { + skip(ticks, newTicks, spacing, majorIndices[i], majorIndices[i + 1]); + } + skip(ticks, newTicks, spacing, last, isNullOrUndef(avgMajorSpacing) ? ticks.length : last + avgMajorSpacing); + return newTicks; + } + skip(ticks, newTicks, spacing); + return newTicks; +} +function determineMaxTicks(scale) { + const offset = scale.options.offset; + const tickLength = scale._tickSize(); + const maxScale = scale._length / tickLength + (offset ? 0 : 1); + const maxChart = scale._maxLength / tickLength; + return Math.floor(Math.min(maxScale, maxChart)); +} +function calculateSpacing(majorIndices, ticks, ticksLimit) { + const evenMajorSpacing = getEvenSpacing(majorIndices); + const spacing = ticks.length / ticksLimit; + if (!evenMajorSpacing) { + return Math.max(spacing, 1); + } + const factors = _factorize(evenMajorSpacing); + for (let i = 0, ilen = factors.length - 1; i < ilen; i++) { + const factor = factors[i]; + if (factor > spacing) { + return factor; + } + } + return Math.max(spacing, 1); +} +function getMajorIndices(ticks) { + const result = []; + let i, ilen; + for (i = 0, ilen = ticks.length; i < ilen; i++) { + if (ticks[i].major) { + result.push(i); + } + } + return result; +} +function skipMajors(ticks, newTicks, majorIndices, spacing) { + let count = 0; + let next = majorIndices[0]; + let i; + spacing = Math.ceil(spacing); + for (i = 0; i < ticks.length; i++) { + if (i === next) { + newTicks.push(ticks[i]); + count++; + next = majorIndices[count * spacing]; + } + } +} +function skip(ticks, newTicks, spacing, majorStart, majorEnd) { + const start = valueOrDefault(majorStart, 0); + const end = Math.min(valueOrDefault(majorEnd, ticks.length), ticks.length); + let count = 0; + let length, i, next; + spacing = Math.ceil(spacing); + if (majorEnd) { + length = majorEnd - majorStart; + spacing = length / Math.floor(length / spacing); + } + next = start; + while (next < 0) { + count++; + next = Math.round(start + count * spacing); + } + for (i = Math.max(start, 0); i < end; i++) { + if (i === next) { + newTicks.push(ticks[i]); + count++; + next = Math.round(start + count * spacing); + } + } +} +function getEvenSpacing(arr) { + const len = arr.length; + let i, diff; + if (len < 2) { + return false; + } + for (diff = arr[0], i = 1; i < len; ++i) { + if (arr[i] - arr[i - 1] !== diff) { + return false; + } + } + return diff; +} + +const reverseAlign = (align) => align === 'left' ? 'right' : align === 'right' ? 'left' : align; +const offsetFromEdge = (scale, edge, offset) => edge === 'top' || edge === 'left' ? scale[edge] + offset : scale[edge] - offset; +function sample(arr, numItems) { + const result = []; + const increment = arr.length / numItems; + const len = arr.length; + let i = 0; + for (; i < len; i += increment) { + result.push(arr[Math.floor(i)]); + } + return result; +} +function getPixelForGridLine(scale, index, offsetGridLines) { + const length = scale.ticks.length; + const validIndex = Math.min(index, length - 1); + const start = scale._startPixel; + const end = scale._endPixel; + const epsilon = 1e-6; + let lineValue = scale.getPixelForTick(validIndex); + let offset; + if (offsetGridLines) { + if (length === 1) { + offset = Math.max(lineValue - start, end - lineValue); + } else if (index === 0) { + offset = (scale.getPixelForTick(1) - lineValue) / 2; + } else { + offset = (lineValue - scale.getPixelForTick(validIndex - 1)) / 2; + } + lineValue += validIndex < index ? offset : -offset; + if (lineValue < start - epsilon || lineValue > end + epsilon) { + return; + } + } + return lineValue; +} +function garbageCollect(caches, length) { + each(caches, (cache) => { + const gc = cache.gc; + const gcLen = gc.length / 2; + let i; + if (gcLen > length) { + for (i = 0; i < gcLen; ++i) { + delete cache.data[gc[i]]; + } + gc.splice(0, gcLen); + } + }); +} +function getTickMarkLength(options) { + return options.drawTicks ? options.tickLength : 0; +} +function getTitleHeight(options, fallback) { + if (!options.display) { + return 0; + } + const font = toFont(options.font, fallback); + const padding = toPadding(options.padding); + const lines = isArray(options.text) ? options.text.length : 1; + return (lines * font.lineHeight) + padding.height; +} +function createScaleContext(parent, scale) { + return createContext(parent, { + scale, + type: 'scale' + }); +} +function createTickContext(parent, index, tick) { + return createContext(parent, { + tick, + index, + type: 'tick' + }); +} +function titleAlign(align, position, reverse) { + let ret = _toLeftRightCenter(align); + if ((reverse && position !== 'right') || (!reverse && position === 'right')) { + ret = reverseAlign(ret); + } + return ret; +} +function titleArgs(scale, offset, position, align) { + const {top, left, bottom, right, chart} = scale; + const {chartArea, scales} = chart; + let rotation = 0; + let maxWidth, titleX, titleY; + const height = bottom - top; + const width = right - left; + if (scale.isHorizontal()) { + titleX = _alignStartEnd(align, left, right); + if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + titleY = scales[positionAxisID].getPixelForValue(value) + height - offset; + } else if (position === 'center') { + titleY = (chartArea.bottom + chartArea.top) / 2 + height - offset; + } else { + titleY = offsetFromEdge(scale, position, offset); + } + maxWidth = right - left; + } else { + if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + titleX = scales[positionAxisID].getPixelForValue(value) - width + offset; + } else if (position === 'center') { + titleX = (chartArea.left + chartArea.right) / 2 - width + offset; + } else { + titleX = offsetFromEdge(scale, position, offset); + } + titleY = _alignStartEnd(align, bottom, top); + rotation = position === 'left' ? -HALF_PI : HALF_PI; + } + return {titleX, titleY, maxWidth, rotation}; +} +class Scale extends Element { + constructor(cfg) { + super(); + this.id = cfg.id; + this.type = cfg.type; + this.options = undefined; + this.ctx = cfg.ctx; + this.chart = cfg.chart; + this.top = undefined; + this.bottom = undefined; + this.left = undefined; + this.right = undefined; + this.width = undefined; + this.height = undefined; + this._margins = { + left: 0, + right: 0, + top: 0, + bottom: 0 + }; + this.maxWidth = undefined; + this.maxHeight = undefined; + this.paddingTop = undefined; + this.paddingBottom = undefined; + this.paddingLeft = undefined; + this.paddingRight = undefined; + this.axis = undefined; + this.labelRotation = undefined; + this.min = undefined; + this.max = undefined; + this._range = undefined; + this.ticks = []; + this._gridLineItems = null; + this._labelItems = null; + this._labelSizes = null; + this._length = 0; + this._maxLength = 0; + this._longestTextCache = {}; + this._startPixel = undefined; + this._endPixel = undefined; + this._reversePixels = false; + this._userMax = undefined; + this._userMin = undefined; + this._suggestedMax = undefined; + this._suggestedMin = undefined; + this._ticksLength = 0; + this._borderValue = 0; + this._cache = {}; + this._dataLimitsCached = false; + this.$context = undefined; + } + init(options) { + this.options = options.setContext(this.getContext()); + this.axis = options.axis; + this._userMin = this.parse(options.min); + this._userMax = this.parse(options.max); + this._suggestedMin = this.parse(options.suggestedMin); + this._suggestedMax = this.parse(options.suggestedMax); + } + parse(raw, index) { + return raw; + } + getUserBounds() { + let {_userMin, _userMax, _suggestedMin, _suggestedMax} = this; + _userMin = finiteOrDefault(_userMin, Number.POSITIVE_INFINITY); + _userMax = finiteOrDefault(_userMax, Number.NEGATIVE_INFINITY); + _suggestedMin = finiteOrDefault(_suggestedMin, Number.POSITIVE_INFINITY); + _suggestedMax = finiteOrDefault(_suggestedMax, Number.NEGATIVE_INFINITY); + return { + min: finiteOrDefault(_userMin, _suggestedMin), + max: finiteOrDefault(_userMax, _suggestedMax), + minDefined: isNumberFinite(_userMin), + maxDefined: isNumberFinite(_userMax) + }; + } + getMinMax(canStack) { + let {min, max, minDefined, maxDefined} = this.getUserBounds(); + let range; + if (minDefined && maxDefined) { + return {min, max}; + } + const metas = this.getMatchingVisibleMetas(); + for (let i = 0, ilen = metas.length; i < ilen; ++i) { + range = metas[i].controller.getMinMax(this, canStack); + if (!minDefined) { + min = Math.min(min, range.min); + } + if (!maxDefined) { + max = Math.max(max, range.max); + } + } + min = maxDefined && min > max ? max : min; + max = minDefined && min > max ? min : max; + return { + min: finiteOrDefault(min, finiteOrDefault(max, min)), + max: finiteOrDefault(max, finiteOrDefault(min, max)) + }; + } + getPadding() { + return { + left: this.paddingLeft || 0, + top: this.paddingTop || 0, + right: this.paddingRight || 0, + bottom: this.paddingBottom || 0 + }; + } + getTicks() { + return this.ticks; + } + getLabels() { + const data = this.chart.data; + return this.options.labels || (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels || []; + } + beforeLayout() { + this._cache = {}; + this._dataLimitsCached = false; + } + beforeUpdate() { + callback(this.options.beforeUpdate, [this]); + } + update(maxWidth, maxHeight, margins) { + const {beginAtZero, grace, ticks: tickOpts} = this.options; + const sampleSize = tickOpts.sampleSize; + this.beforeUpdate(); + this.maxWidth = maxWidth; + this.maxHeight = maxHeight; + this._margins = margins = Object.assign({ + left: 0, + right: 0, + top: 0, + bottom: 0 + }, margins); + this.ticks = null; + this._labelSizes = null; + this._gridLineItems = null; + this._labelItems = null; + this.beforeSetDimensions(); + this.setDimensions(); + this.afterSetDimensions(); + this._maxLength = this.isHorizontal() + ? this.width + margins.left + margins.right + : this.height + margins.top + margins.bottom; + if (!this._dataLimitsCached) { + this.beforeDataLimits(); + this.determineDataLimits(); + this.afterDataLimits(); + this._range = _addGrace(this, grace, beginAtZero); + this._dataLimitsCached = true; + } + this.beforeBuildTicks(); + this.ticks = this.buildTicks() || []; + this.afterBuildTicks(); + const samplingEnabled = sampleSize < this.ticks.length; + this._convertTicksToLabels(samplingEnabled ? sample(this.ticks, sampleSize) : this.ticks); + this.configure(); + this.beforeCalculateLabelRotation(); + this.calculateLabelRotation(); + this.afterCalculateLabelRotation(); + if (tickOpts.display && (tickOpts.autoSkip || tickOpts.source === 'auto')) { + this.ticks = autoSkip(this, this.ticks); + this._labelSizes = null; + } + if (samplingEnabled) { + this._convertTicksToLabels(this.ticks); + } + this.beforeFit(); + this.fit(); + this.afterFit(); + this.afterUpdate(); + } + configure() { + let reversePixels = this.options.reverse; + let startPixel, endPixel; + if (this.isHorizontal()) { + startPixel = this.left; + endPixel = this.right; + } else { + startPixel = this.top; + endPixel = this.bottom; + reversePixels = !reversePixels; + } + this._startPixel = startPixel; + this._endPixel = endPixel; + this._reversePixels = reversePixels; + this._length = endPixel - startPixel; + this._alignToPixels = this.options.alignToPixels; + } + afterUpdate() { + callback(this.options.afterUpdate, [this]); + } + beforeSetDimensions() { + callback(this.options.beforeSetDimensions, [this]); + } + setDimensions() { + if (this.isHorizontal()) { + this.width = this.maxWidth; + this.left = 0; + this.right = this.width; + } else { + this.height = this.maxHeight; + this.top = 0; + this.bottom = this.height; + } + this.paddingLeft = 0; + this.paddingTop = 0; + this.paddingRight = 0; + this.paddingBottom = 0; + } + afterSetDimensions() { + callback(this.options.afterSetDimensions, [this]); + } + _callHooks(name) { + this.chart.notifyPlugins(name, this.getContext()); + callback(this.options[name], [this]); + } + beforeDataLimits() { + this._callHooks('beforeDataLimits'); + } + determineDataLimits() {} + afterDataLimits() { + this._callHooks('afterDataLimits'); + } + beforeBuildTicks() { + this._callHooks('beforeBuildTicks'); + } + buildTicks() { + return []; + } + afterBuildTicks() { + this._callHooks('afterBuildTicks'); + } + beforeTickToLabelConversion() { + callback(this.options.beforeTickToLabelConversion, [this]); + } + generateTickLabels(ticks) { + const tickOpts = this.options.ticks; + let i, ilen, tick; + for (i = 0, ilen = ticks.length; i < ilen; i++) { + tick = ticks[i]; + tick.label = callback(tickOpts.callback, [tick.value, i, ticks], this); + } + } + afterTickToLabelConversion() { + callback(this.options.afterTickToLabelConversion, [this]); + } + beforeCalculateLabelRotation() { + callback(this.options.beforeCalculateLabelRotation, [this]); + } + calculateLabelRotation() { + const options = this.options; + const tickOpts = options.ticks; + const numTicks = this.ticks.length; + const minRotation = tickOpts.minRotation || 0; + const maxRotation = tickOpts.maxRotation; + let labelRotation = minRotation; + let tickWidth, maxHeight, maxLabelDiagonal; + if (!this._isVisible() || !tickOpts.display || minRotation >= maxRotation || numTicks <= 1 || !this.isHorizontal()) { + this.labelRotation = minRotation; + return; + } + const labelSizes = this._getLabelSizes(); + const maxLabelWidth = labelSizes.widest.width; + const maxLabelHeight = labelSizes.highest.height; + const maxWidth = _limitValue(this.chart.width - maxLabelWidth, 0, this.maxWidth); + tickWidth = options.offset ? this.maxWidth / numTicks : maxWidth / (numTicks - 1); + if (maxLabelWidth + 6 > tickWidth) { + tickWidth = maxWidth / (numTicks - (options.offset ? 0.5 : 1)); + maxHeight = this.maxHeight - getTickMarkLength(options.grid) + - tickOpts.padding - getTitleHeight(options.title, this.chart.options.font); + maxLabelDiagonal = Math.sqrt(maxLabelWidth * maxLabelWidth + maxLabelHeight * maxLabelHeight); + labelRotation = toDegrees(Math.min( + Math.asin(_limitValue((labelSizes.highest.height + 6) / tickWidth, -1, 1)), + Math.asin(_limitValue(maxHeight / maxLabelDiagonal, -1, 1)) - Math.asin(_limitValue(maxLabelHeight / maxLabelDiagonal, -1, 1)) + )); + labelRotation = Math.max(minRotation, Math.min(maxRotation, labelRotation)); + } + this.labelRotation = labelRotation; + } + afterCalculateLabelRotation() { + callback(this.options.afterCalculateLabelRotation, [this]); + } + beforeFit() { + callback(this.options.beforeFit, [this]); + } + fit() { + const minSize = { + width: 0, + height: 0 + }; + const {chart, options: {ticks: tickOpts, title: titleOpts, grid: gridOpts}} = this; + const display = this._isVisible(); + const isHorizontal = this.isHorizontal(); + if (display) { + const titleHeight = getTitleHeight(titleOpts, chart.options.font); + if (isHorizontal) { + minSize.width = this.maxWidth; + minSize.height = getTickMarkLength(gridOpts) + titleHeight; + } else { + minSize.height = this.maxHeight; + minSize.width = getTickMarkLength(gridOpts) + titleHeight; + } + if (tickOpts.display && this.ticks.length) { + const {first, last, widest, highest} = this._getLabelSizes(); + const tickPadding = tickOpts.padding * 2; + const angleRadians = toRadians(this.labelRotation); + const cos = Math.cos(angleRadians); + const sin = Math.sin(angleRadians); + if (isHorizontal) { + const labelHeight = tickOpts.mirror ? 0 : sin * widest.width + cos * highest.height; + minSize.height = Math.min(this.maxHeight, minSize.height + labelHeight + tickPadding); + } else { + const labelWidth = tickOpts.mirror ? 0 : cos * widest.width + sin * highest.height; + minSize.width = Math.min(this.maxWidth, minSize.width + labelWidth + tickPadding); + } + this._calculatePadding(first, last, sin, cos); + } + } + this._handleMargins(); + if (isHorizontal) { + this.width = this._length = chart.width - this._margins.left - this._margins.right; + this.height = minSize.height; + } else { + this.width = minSize.width; + this.height = this._length = chart.height - this._margins.top - this._margins.bottom; + } + } + _calculatePadding(first, last, sin, cos) { + const {ticks: {align, padding}, position} = this.options; + const isRotated = this.labelRotation !== 0; + const labelsBelowTicks = position !== 'top' && this.axis === 'x'; + if (this.isHorizontal()) { + const offsetLeft = this.getPixelForTick(0) - this.left; + const offsetRight = this.right - this.getPixelForTick(this.ticks.length - 1); + let paddingLeft = 0; + let paddingRight = 0; + if (isRotated) { + if (labelsBelowTicks) { + paddingLeft = cos * first.width; + paddingRight = sin * last.height; + } else { + paddingLeft = sin * first.height; + paddingRight = cos * last.width; + } + } else if (align === 'start') { + paddingRight = last.width; + } else if (align === 'end') { + paddingLeft = first.width; + } else { + paddingLeft = first.width / 2; + paddingRight = last.width / 2; + } + this.paddingLeft = Math.max((paddingLeft - offsetLeft + padding) * this.width / (this.width - offsetLeft), 0); + this.paddingRight = Math.max((paddingRight - offsetRight + padding) * this.width / (this.width - offsetRight), 0); + } else { + let paddingTop = last.height / 2; + let paddingBottom = first.height / 2; + if (align === 'start') { + paddingTop = 0; + paddingBottom = first.height; + } else if (align === 'end') { + paddingTop = last.height; + paddingBottom = 0; + } + this.paddingTop = paddingTop + padding; + this.paddingBottom = paddingBottom + padding; + } + } + _handleMargins() { + if (this._margins) { + this._margins.left = Math.max(this.paddingLeft, this._margins.left); + this._margins.top = Math.max(this.paddingTop, this._margins.top); + this._margins.right = Math.max(this.paddingRight, this._margins.right); + this._margins.bottom = Math.max(this.paddingBottom, this._margins.bottom); + } + } + afterFit() { + callback(this.options.afterFit, [this]); + } + isHorizontal() { + const {axis, position} = this.options; + return position === 'top' || position === 'bottom' || axis === 'x'; + } + isFullSize() { + return this.options.fullSize; + } + _convertTicksToLabels(ticks) { + this.beforeTickToLabelConversion(); + this.generateTickLabels(ticks); + let i, ilen; + for (i = 0, ilen = ticks.length; i < ilen; i++) { + if (isNullOrUndef(ticks[i].label)) { + ticks.splice(i, 1); + ilen--; + i--; + } + } + this.afterTickToLabelConversion(); + } + _getLabelSizes() { + let labelSizes = this._labelSizes; + if (!labelSizes) { + const sampleSize = this.options.ticks.sampleSize; + let ticks = this.ticks; + if (sampleSize < ticks.length) { + ticks = sample(ticks, sampleSize); + } + this._labelSizes = labelSizes = this._computeLabelSizes(ticks, ticks.length); + } + return labelSizes; + } + _computeLabelSizes(ticks, length) { + const {ctx, _longestTextCache: caches} = this; + const widths = []; + const heights = []; + let widestLabelSize = 0; + let highestLabelSize = 0; + let i, j, jlen, label, tickFont, fontString, cache, lineHeight, width, height, nestedLabel; + for (i = 0; i < length; ++i) { + label = ticks[i].label; + tickFont = this._resolveTickFontOptions(i); + ctx.font = fontString = tickFont.string; + cache = caches[fontString] = caches[fontString] || {data: {}, gc: []}; + lineHeight = tickFont.lineHeight; + width = height = 0; + if (!isNullOrUndef(label) && !isArray(label)) { + width = _measureText(ctx, cache.data, cache.gc, width, label); + height = lineHeight; + } else if (isArray(label)) { + for (j = 0, jlen = label.length; j < jlen; ++j) { + nestedLabel = label[j]; + if (!isNullOrUndef(nestedLabel) && !isArray(nestedLabel)) { + width = _measureText(ctx, cache.data, cache.gc, width, nestedLabel); + height += lineHeight; + } + } + } + widths.push(width); + heights.push(height); + widestLabelSize = Math.max(width, widestLabelSize); + highestLabelSize = Math.max(height, highestLabelSize); + } + garbageCollect(caches, length); + const widest = widths.indexOf(widestLabelSize); + const highest = heights.indexOf(highestLabelSize); + const valueAt = (idx) => ({width: widths[idx] || 0, height: heights[idx] || 0}); + return { + first: valueAt(0), + last: valueAt(length - 1), + widest: valueAt(widest), + highest: valueAt(highest), + widths, + heights, + }; + } + getLabelForValue(value) { + return value; + } + getPixelForValue(value, index) { + return NaN; + } + getValueForPixel(pixel) {} + getPixelForTick(index) { + const ticks = this.ticks; + if (index < 0 || index > ticks.length - 1) { + return null; + } + return this.getPixelForValue(ticks[index].value); + } + getPixelForDecimal(decimal) { + if (this._reversePixels) { + decimal = 1 - decimal; + } + const pixel = this._startPixel + decimal * this._length; + return _int16Range(this._alignToPixels ? _alignPixel(this.chart, pixel, 0) : pixel); + } + getDecimalForPixel(pixel) { + const decimal = (pixel - this._startPixel) / this._length; + return this._reversePixels ? 1 - decimal : decimal; + } + getBasePixel() { + return this.getPixelForValue(this.getBaseValue()); + } + getBaseValue() { + const {min, max} = this; + return min < 0 && max < 0 ? max : + min > 0 && max > 0 ? min : + 0; + } + getContext(index) { + const ticks = this.ticks || []; + if (index >= 0 && index < ticks.length) { + const tick = ticks[index]; + return tick.$context || + (tick.$context = createTickContext(this.getContext(), index, tick)); + } + return this.$context || + (this.$context = createScaleContext(this.chart.getContext(), this)); + } + _tickSize() { + const optionTicks = this.options.ticks; + const rot = toRadians(this.labelRotation); + const cos = Math.abs(Math.cos(rot)); + const sin = Math.abs(Math.sin(rot)); + const labelSizes = this._getLabelSizes(); + const padding = optionTicks.autoSkipPadding || 0; + const w = labelSizes ? labelSizes.widest.width + padding : 0; + const h = labelSizes ? labelSizes.highest.height + padding : 0; + return this.isHorizontal() + ? h * cos > w * sin ? w / cos : h / sin + : h * sin < w * cos ? h / cos : w / sin; + } + _isVisible() { + const display = this.options.display; + if (display !== 'auto') { + return !!display; + } + return this.getMatchingVisibleMetas().length > 0; + } + _computeGridLineItems(chartArea) { + const axis = this.axis; + const chart = this.chart; + const options = this.options; + const {grid, position} = options; + const offset = grid.offset; + const isHorizontal = this.isHorizontal(); + const ticks = this.ticks; + const ticksLength = ticks.length + (offset ? 1 : 0); + const tl = getTickMarkLength(grid); + const items = []; + const borderOpts = grid.setContext(this.getContext()); + const axisWidth = borderOpts.drawBorder ? borderOpts.borderWidth : 0; + const axisHalfWidth = axisWidth / 2; + const alignBorderValue = function(pixel) { + return _alignPixel(chart, pixel, axisWidth); + }; + let borderValue, i, lineValue, alignedLineValue; + let tx1, ty1, tx2, ty2, x1, y1, x2, y2; + if (position === 'top') { + borderValue = alignBorderValue(this.bottom); + ty1 = this.bottom - tl; + ty2 = borderValue - axisHalfWidth; + y1 = alignBorderValue(chartArea.top) + axisHalfWidth; + y2 = chartArea.bottom; + } else if (position === 'bottom') { + borderValue = alignBorderValue(this.top); + y1 = chartArea.top; + y2 = alignBorderValue(chartArea.bottom) - axisHalfWidth; + ty1 = borderValue + axisHalfWidth; + ty2 = this.top + tl; + } else if (position === 'left') { + borderValue = alignBorderValue(this.right); + tx1 = this.right - tl; + tx2 = borderValue - axisHalfWidth; + x1 = alignBorderValue(chartArea.left) + axisHalfWidth; + x2 = chartArea.right; + } else if (position === 'right') { + borderValue = alignBorderValue(this.left); + x1 = chartArea.left; + x2 = alignBorderValue(chartArea.right) - axisHalfWidth; + tx1 = borderValue + axisHalfWidth; + tx2 = this.left + tl; + } else if (axis === 'x') { + if (position === 'center') { + borderValue = alignBorderValue((chartArea.top + chartArea.bottom) / 2 + 0.5); + } else if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + borderValue = alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value)); + } + y1 = chartArea.top; + y2 = chartArea.bottom; + ty1 = borderValue + axisHalfWidth; + ty2 = ty1 + tl; + } else if (axis === 'y') { + if (position === 'center') { + borderValue = alignBorderValue((chartArea.left + chartArea.right) / 2); + } else if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + borderValue = alignBorderValue(this.chart.scales[positionAxisID].getPixelForValue(value)); + } + tx1 = borderValue - axisHalfWidth; + tx2 = tx1 - tl; + x1 = chartArea.left; + x2 = chartArea.right; + } + const limit = valueOrDefault(options.ticks.maxTicksLimit, ticksLength); + const step = Math.max(1, Math.ceil(ticksLength / limit)); + for (i = 0; i < ticksLength; i += step) { + const optsAtIndex = grid.setContext(this.getContext(i)); + const lineWidth = optsAtIndex.lineWidth; + const lineColor = optsAtIndex.color; + const borderDash = grid.borderDash || []; + const borderDashOffset = optsAtIndex.borderDashOffset; + const tickWidth = optsAtIndex.tickWidth; + const tickColor = optsAtIndex.tickColor; + const tickBorderDash = optsAtIndex.tickBorderDash || []; + const tickBorderDashOffset = optsAtIndex.tickBorderDashOffset; + lineValue = getPixelForGridLine(this, i, offset); + if (lineValue === undefined) { + continue; + } + alignedLineValue = _alignPixel(chart, lineValue, lineWidth); + if (isHorizontal) { + tx1 = tx2 = x1 = x2 = alignedLineValue; + } else { + ty1 = ty2 = y1 = y2 = alignedLineValue; + } + items.push({ + tx1, + ty1, + tx2, + ty2, + x1, + y1, + x2, + y2, + width: lineWidth, + color: lineColor, + borderDash, + borderDashOffset, + tickWidth, + tickColor, + tickBorderDash, + tickBorderDashOffset, + }); + } + this._ticksLength = ticksLength; + this._borderValue = borderValue; + return items; + } + _computeLabelItems(chartArea) { + const axis = this.axis; + const options = this.options; + const {position, ticks: optionTicks} = options; + const isHorizontal = this.isHorizontal(); + const ticks = this.ticks; + const {align, crossAlign, padding, mirror} = optionTicks; + const tl = getTickMarkLength(options.grid); + const tickAndPadding = tl + padding; + const hTickAndPadding = mirror ? -padding : tickAndPadding; + const rotation = -toRadians(this.labelRotation); + const items = []; + let i, ilen, tick, label, x, y, textAlign, pixel, font, lineHeight, lineCount, textOffset; + let textBaseline = 'middle'; + if (position === 'top') { + y = this.bottom - hTickAndPadding; + textAlign = this._getXAxisLabelAlignment(); + } else if (position === 'bottom') { + y = this.top + hTickAndPadding; + textAlign = this._getXAxisLabelAlignment(); + } else if (position === 'left') { + const ret = this._getYAxisLabelAlignment(tl); + textAlign = ret.textAlign; + x = ret.x; + } else if (position === 'right') { + const ret = this._getYAxisLabelAlignment(tl); + textAlign = ret.textAlign; + x = ret.x; + } else if (axis === 'x') { + if (position === 'center') { + y = ((chartArea.top + chartArea.bottom) / 2) + tickAndPadding; + } else if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + y = this.chart.scales[positionAxisID].getPixelForValue(value) + tickAndPadding; + } + textAlign = this._getXAxisLabelAlignment(); + } else if (axis === 'y') { + if (position === 'center') { + x = ((chartArea.left + chartArea.right) / 2) - tickAndPadding; + } else if (isObject(position)) { + const positionAxisID = Object.keys(position)[0]; + const value = position[positionAxisID]; + x = this.chart.scales[positionAxisID].getPixelForValue(value); + } + textAlign = this._getYAxisLabelAlignment(tl).textAlign; + } + if (axis === 'y') { + if (align === 'start') { + textBaseline = 'top'; + } else if (align === 'end') { + textBaseline = 'bottom'; + } + } + const labelSizes = this._getLabelSizes(); + for (i = 0, ilen = ticks.length; i < ilen; ++i) { + tick = ticks[i]; + label = tick.label; + const optsAtIndex = optionTicks.setContext(this.getContext(i)); + pixel = this.getPixelForTick(i) + optionTicks.labelOffset; + font = this._resolveTickFontOptions(i); + lineHeight = font.lineHeight; + lineCount = isArray(label) ? label.length : 1; + const halfCount = lineCount / 2; + const color = optsAtIndex.color; + const strokeColor = optsAtIndex.textStrokeColor; + const strokeWidth = optsAtIndex.textStrokeWidth; + if (isHorizontal) { + x = pixel; + if (position === 'top') { + if (crossAlign === 'near' || rotation !== 0) { + textOffset = -lineCount * lineHeight + lineHeight / 2; + } else if (crossAlign === 'center') { + textOffset = -labelSizes.highest.height / 2 - halfCount * lineHeight + lineHeight; + } else { + textOffset = -labelSizes.highest.height + lineHeight / 2; + } + } else { + if (crossAlign === 'near' || rotation !== 0) { + textOffset = lineHeight / 2; + } else if (crossAlign === 'center') { + textOffset = labelSizes.highest.height / 2 - halfCount * lineHeight; + } else { + textOffset = labelSizes.highest.height - lineCount * lineHeight; + } + } + if (mirror) { + textOffset *= -1; + } + } else { + y = pixel; + textOffset = (1 - lineCount) * lineHeight / 2; + } + let backdrop; + if (optsAtIndex.showLabelBackdrop) { + const labelPadding = toPadding(optsAtIndex.backdropPadding); + const height = labelSizes.heights[i]; + const width = labelSizes.widths[i]; + let top = y + textOffset - labelPadding.top; + let left = x - labelPadding.left; + switch (textBaseline) { + case 'middle': + top -= height / 2; + break; + case 'bottom': + top -= height; + break; + } + switch (textAlign) { + case 'center': + left -= width / 2; + break; + case 'right': + left -= width; + break; + } + backdrop = { + left, + top, + width: width + labelPadding.width, + height: height + labelPadding.height, + color: optsAtIndex.backdropColor, + }; + } + items.push({ + rotation, + label, + font, + color, + strokeColor, + strokeWidth, + textOffset, + textAlign, + textBaseline, + translation: [x, y], + backdrop, + }); + } + return items; + } + _getXAxisLabelAlignment() { + const {position, ticks} = this.options; + const rotation = -toRadians(this.labelRotation); + if (rotation) { + return position === 'top' ? 'left' : 'right'; + } + let align = 'center'; + if (ticks.align === 'start') { + align = 'left'; + } else if (ticks.align === 'end') { + align = 'right'; + } + return align; + } + _getYAxisLabelAlignment(tl) { + const {position, ticks: {crossAlign, mirror, padding}} = this.options; + const labelSizes = this._getLabelSizes(); + const tickAndPadding = tl + padding; + const widest = labelSizes.widest.width; + let textAlign; + let x; + if (position === 'left') { + if (mirror) { + x = this.right + padding; + if (crossAlign === 'near') { + textAlign = 'left'; + } else if (crossAlign === 'center') { + textAlign = 'center'; + x += (widest / 2); + } else { + textAlign = 'right'; + x += widest; + } + } else { + x = this.right - tickAndPadding; + if (crossAlign === 'near') { + textAlign = 'right'; + } else if (crossAlign === 'center') { + textAlign = 'center'; + x -= (widest / 2); + } else { + textAlign = 'left'; + x = this.left; + } + } + } else if (position === 'right') { + if (mirror) { + x = this.left + padding; + if (crossAlign === 'near') { + textAlign = 'right'; + } else if (crossAlign === 'center') { + textAlign = 'center'; + x -= (widest / 2); + } else { + textAlign = 'left'; + x -= widest; + } + } else { + x = this.left + tickAndPadding; + if (crossAlign === 'near') { + textAlign = 'left'; + } else if (crossAlign === 'center') { + textAlign = 'center'; + x += widest / 2; + } else { + textAlign = 'right'; + x = this.right; + } + } + } else { + textAlign = 'right'; + } + return {textAlign, x}; + } + _computeLabelArea() { + if (this.options.ticks.mirror) { + return; + } + const chart = this.chart; + const position = this.options.position; + if (position === 'left' || position === 'right') { + return {top: 0, left: this.left, bottom: chart.height, right: this.right}; + } if (position === 'top' || position === 'bottom') { + return {top: this.top, left: 0, bottom: this.bottom, right: chart.width}; + } + } + drawBackground() { + const {ctx, options: {backgroundColor}, left, top, width, height} = this; + if (backgroundColor) { + ctx.save(); + ctx.fillStyle = backgroundColor; + ctx.fillRect(left, top, width, height); + ctx.restore(); + } + } + getLineWidthForValue(value) { + const grid = this.options.grid; + if (!this._isVisible() || !grid.display) { + return 0; + } + const ticks = this.ticks; + const index = ticks.findIndex(t => t.value === value); + if (index >= 0) { + const opts = grid.setContext(this.getContext(index)); + return opts.lineWidth; + } + return 0; + } + drawGrid(chartArea) { + const grid = this.options.grid; + const ctx = this.ctx; + const items = this._gridLineItems || (this._gridLineItems = this._computeGridLineItems(chartArea)); + let i, ilen; + const drawLine = (p1, p2, style) => { + if (!style.width || !style.color) { + return; + } + ctx.save(); + ctx.lineWidth = style.width; + ctx.strokeStyle = style.color; + ctx.setLineDash(style.borderDash || []); + ctx.lineDashOffset = style.borderDashOffset; + ctx.beginPath(); + ctx.moveTo(p1.x, p1.y); + ctx.lineTo(p2.x, p2.y); + ctx.stroke(); + ctx.restore(); + }; + if (grid.display) { + for (i = 0, ilen = items.length; i < ilen; ++i) { + const item = items[i]; + if (grid.drawOnChartArea) { + drawLine( + {x: item.x1, y: item.y1}, + {x: item.x2, y: item.y2}, + item + ); + } + if (grid.drawTicks) { + drawLine( + {x: item.tx1, y: item.ty1}, + {x: item.tx2, y: item.ty2}, + { + color: item.tickColor, + width: item.tickWidth, + borderDash: item.tickBorderDash, + borderDashOffset: item.tickBorderDashOffset + } + ); + } + } + } + } + drawBorder() { + const {chart, ctx, options: {grid}} = this; + const borderOpts = grid.setContext(this.getContext()); + const axisWidth = grid.drawBorder ? borderOpts.borderWidth : 0; + if (!axisWidth) { + return; + } + const lastLineWidth = grid.setContext(this.getContext(0)).lineWidth; + const borderValue = this._borderValue; + let x1, x2, y1, y2; + if (this.isHorizontal()) { + x1 = _alignPixel(chart, this.left, axisWidth) - axisWidth / 2; + x2 = _alignPixel(chart, this.right, lastLineWidth) + lastLineWidth / 2; + y1 = y2 = borderValue; + } else { + y1 = _alignPixel(chart, this.top, axisWidth) - axisWidth / 2; + y2 = _alignPixel(chart, this.bottom, lastLineWidth) + lastLineWidth / 2; + x1 = x2 = borderValue; + } + ctx.save(); + ctx.lineWidth = borderOpts.borderWidth; + ctx.strokeStyle = borderOpts.borderColor; + ctx.beginPath(); + ctx.moveTo(x1, y1); + ctx.lineTo(x2, y2); + ctx.stroke(); + ctx.restore(); + } + drawLabels(chartArea) { + const optionTicks = this.options.ticks; + if (!optionTicks.display) { + return; + } + const ctx = this.ctx; + const area = this._computeLabelArea(); + if (area) { + clipArea(ctx, area); + } + const items = this._labelItems || (this._labelItems = this._computeLabelItems(chartArea)); + let i, ilen; + for (i = 0, ilen = items.length; i < ilen; ++i) { + const item = items[i]; + const tickFont = item.font; + const label = item.label; + if (item.backdrop) { + ctx.fillStyle = item.backdrop.color; + ctx.fillRect(item.backdrop.left, item.backdrop.top, item.backdrop.width, item.backdrop.height); + } + let y = item.textOffset; + renderText(ctx, label, 0, y, tickFont, item); + } + if (area) { + unclipArea(ctx); + } + } + drawTitle() { + const {ctx, options: {position, title, reverse}} = this; + if (!title.display) { + return; + } + const font = toFont(title.font); + const padding = toPadding(title.padding); + const align = title.align; + let offset = font.lineHeight / 2; + if (position === 'bottom' || position === 'center' || isObject(position)) { + offset += padding.bottom; + if (isArray(title.text)) { + offset += font.lineHeight * (title.text.length - 1); + } + } else { + offset += padding.top; + } + const {titleX, titleY, maxWidth, rotation} = titleArgs(this, offset, position, align); + renderText(ctx, title.text, 0, 0, font, { + color: title.color, + maxWidth, + rotation, + textAlign: titleAlign(align, position, reverse), + textBaseline: 'middle', + translation: [titleX, titleY], + }); + } + draw(chartArea) { + if (!this._isVisible()) { + return; + } + this.drawBackground(); + this.drawGrid(chartArea); + this.drawBorder(); + this.drawTitle(); + this.drawLabels(chartArea); + } + _layers() { + const opts = this.options; + const tz = opts.ticks && opts.ticks.z || 0; + const gz = valueOrDefault(opts.grid && opts.grid.z, -1); + if (!this._isVisible() || this.draw !== Scale.prototype.draw) { + return [{ + z: tz, + draw: (chartArea) => { + this.draw(chartArea); + } + }]; + } + return [{ + z: gz, + draw: (chartArea) => { + this.drawBackground(); + this.drawGrid(chartArea); + this.drawTitle(); + } + }, { + z: gz + 1, + draw: () => { + this.drawBorder(); + } + }, { + z: tz, + draw: (chartArea) => { + this.drawLabels(chartArea); + } + }]; + } + getMatchingVisibleMetas(type) { + const metas = this.chart.getSortedVisibleDatasetMetas(); + const axisID = this.axis + 'AxisID'; + const result = []; + let i, ilen; + for (i = 0, ilen = metas.length; i < ilen; ++i) { + const meta = metas[i]; + if (meta[axisID] === this.id && (!type || meta.type === type)) { + result.push(meta); + } + } + return result; + } + _resolveTickFontOptions(index) { + const opts = this.options.ticks.setContext(this.getContext(index)); + return toFont(opts.font); + } + _maxDigits() { + const fontSize = this._resolveTickFontOptions(0).lineHeight; + return (this.isHorizontal() ? this.width : this.height) / fontSize; + } +} + +class TypedRegistry { + constructor(type, scope, override) { + this.type = type; + this.scope = scope; + this.override = override; + this.items = Object.create(null); + } + isForType(type) { + return Object.prototype.isPrototypeOf.call(this.type.prototype, type.prototype); + } + register(item) { + const proto = Object.getPrototypeOf(item); + let parentScope; + if (isIChartComponent(proto)) { + parentScope = this.register(proto); + } + const items = this.items; + const id = item.id; + const scope = this.scope + '.' + id; + if (!id) { + throw new Error('class does not have id: ' + item); + } + if (id in items) { + return scope; + } + items[id] = item; + registerDefaults(item, scope, parentScope); + if (this.override) { + defaults.override(item.id, item.overrides); + } + return scope; + } + get(id) { + return this.items[id]; + } + unregister(item) { + const items = this.items; + const id = item.id; + const scope = this.scope; + if (id in items) { + delete items[id]; + } + if (scope && id in defaults[scope]) { + delete defaults[scope][id]; + if (this.override) { + delete overrides[id]; + } + } + } +} +function registerDefaults(item, scope, parentScope) { + const itemDefaults = merge(Object.create(null), [ + parentScope ? defaults.get(parentScope) : {}, + defaults.get(scope), + item.defaults + ]); + defaults.set(scope, itemDefaults); + if (item.defaultRoutes) { + routeDefaults(scope, item.defaultRoutes); + } + if (item.descriptors) { + defaults.describe(scope, item.descriptors); + } +} +function routeDefaults(scope, routes) { + Object.keys(routes).forEach(property => { + const propertyParts = property.split('.'); + const sourceName = propertyParts.pop(); + const sourceScope = [scope].concat(propertyParts).join('.'); + const parts = routes[property].split('.'); + const targetName = parts.pop(); + const targetScope = parts.join('.'); + defaults.route(sourceScope, sourceName, targetScope, targetName); + }); +} +function isIChartComponent(proto) { + return 'id' in proto && 'defaults' in proto; +} + +class Registry { + constructor() { + this.controllers = new TypedRegistry(DatasetController, 'datasets', true); + this.elements = new TypedRegistry(Element, 'elements'); + this.plugins = new TypedRegistry(Object, 'plugins'); + this.scales = new TypedRegistry(Scale, 'scales'); + this._typedRegistries = [this.controllers, this.scales, this.elements]; + } + add(...args) { + this._each('register', args); + } + remove(...args) { + this._each('unregister', args); + } + addControllers(...args) { + this._each('register', args, this.controllers); + } + addElements(...args) { + this._each('register', args, this.elements); + } + addPlugins(...args) { + this._each('register', args, this.plugins); + } + addScales(...args) { + this._each('register', args, this.scales); + } + getController(id) { + return this._get(id, this.controllers, 'controller'); + } + getElement(id) { + return this._get(id, this.elements, 'element'); + } + getPlugin(id) { + return this._get(id, this.plugins, 'plugin'); + } + getScale(id) { + return this._get(id, this.scales, 'scale'); + } + removeControllers(...args) { + this._each('unregister', args, this.controllers); + } + removeElements(...args) { + this._each('unregister', args, this.elements); + } + removePlugins(...args) { + this._each('unregister', args, this.plugins); + } + removeScales(...args) { + this._each('unregister', args, this.scales); + } + _each(method, args, typedRegistry) { + [...args].forEach(arg => { + const reg = typedRegistry || this._getRegistryForType(arg); + if (typedRegistry || reg.isForType(arg) || (reg === this.plugins && arg.id)) { + this._exec(method, reg, arg); + } else { + each(arg, item => { + const itemReg = typedRegistry || this._getRegistryForType(item); + this._exec(method, itemReg, item); + }); + } + }); + } + _exec(method, registry, component) { + const camelMethod = _capitalize(method); + callback(component['before' + camelMethod], [], component); + registry[method](component); + callback(component['after' + camelMethod], [], component); + } + _getRegistryForType(type) { + for (let i = 0; i < this._typedRegistries.length; i++) { + const reg = this._typedRegistries[i]; + if (reg.isForType(type)) { + return reg; + } + } + return this.plugins; + } + _get(id, typedRegistry, type) { + const item = typedRegistry.get(id); + if (item === undefined) { + throw new Error('"' + id + '" is not a registered ' + type + '.'); + } + return item; + } +} +var registry = new Registry(); + +class PluginService { + constructor() { + this._init = []; + } + notify(chart, hook, args, filter) { + if (hook === 'beforeInit') { + this._init = this._createDescriptors(chart, true); + this._notify(this._init, chart, 'install'); + } + const descriptors = filter ? this._descriptors(chart).filter(filter) : this._descriptors(chart); + const result = this._notify(descriptors, chart, hook, args); + if (hook === 'afterDestroy') { + this._notify(descriptors, chart, 'stop'); + this._notify(this._init, chart, 'uninstall'); + } + return result; + } + _notify(descriptors, chart, hook, args) { + args = args || {}; + for (const descriptor of descriptors) { + const plugin = descriptor.plugin; + const method = plugin[hook]; + const params = [chart, args, descriptor.options]; + if (callback(method, params, plugin) === false && args.cancelable) { + return false; + } + } + return true; + } + invalidate() { + if (!isNullOrUndef(this._cache)) { + this._oldCache = this._cache; + this._cache = undefined; + } + } + _descriptors(chart) { + if (this._cache) { + return this._cache; + } + const descriptors = this._cache = this._createDescriptors(chart); + this._notifyStateChanges(chart); + return descriptors; + } + _createDescriptors(chart, all) { + const config = chart && chart.config; + const options = valueOrDefault(config.options && config.options.plugins, {}); + const plugins = allPlugins(config); + return options === false && !all ? [] : createDescriptors(chart, plugins, options, all); + } + _notifyStateChanges(chart) { + const previousDescriptors = this._oldCache || []; + const descriptors = this._cache; + const diff = (a, b) => a.filter(x => !b.some(y => x.plugin.id === y.plugin.id)); + this._notify(diff(previousDescriptors, descriptors), chart, 'stop'); + this._notify(diff(descriptors, previousDescriptors), chart, 'start'); + } +} +function allPlugins(config) { + const plugins = []; + const keys = Object.keys(registry.plugins.items); + for (let i = 0; i < keys.length; i++) { + plugins.push(registry.getPlugin(keys[i])); + } + const local = config.plugins || []; + for (let i = 0; i < local.length; i++) { + const plugin = local[i]; + if (plugins.indexOf(plugin) === -1) { + plugins.push(plugin); + } + } + return plugins; +} +function getOpts(options, all) { + if (!all && options === false) { + return null; + } + if (options === true) { + return {}; + } + return options; +} +function createDescriptors(chart, plugins, options, all) { + const result = []; + const context = chart.getContext(); + for (let i = 0; i < plugins.length; i++) { + const plugin = plugins[i]; + const id = plugin.id; + const opts = getOpts(options[id], all); + if (opts === null) { + continue; + } + result.push({ + plugin, + options: pluginOpts(chart.config, plugin, opts, context) + }); + } + return result; +} +function pluginOpts(config, plugin, opts, context) { + const keys = config.pluginScopeKeys(plugin); + const scopes = config.getOptionScopes(opts, keys); + return config.createResolver(scopes, context, [''], {scriptable: false, indexable: false, allKeys: true}); +} + +function getIndexAxis(type, options) { + const datasetDefaults = defaults.datasets[type] || {}; + const datasetOptions = (options.datasets || {})[type] || {}; + return datasetOptions.indexAxis || options.indexAxis || datasetDefaults.indexAxis || 'x'; +} +function getAxisFromDefaultScaleID(id, indexAxis) { + let axis = id; + if (id === '_index_') { + axis = indexAxis; + } else if (id === '_value_') { + axis = indexAxis === 'x' ? 'y' : 'x'; + } + return axis; +} +function getDefaultScaleIDFromAxis(axis, indexAxis) { + return axis === indexAxis ? '_index_' : '_value_'; +} +function axisFromPosition(position) { + if (position === 'top' || position === 'bottom') { + return 'x'; + } + if (position === 'left' || position === 'right') { + return 'y'; + } +} +function determineAxis(id, scaleOptions) { + if (id === 'x' || id === 'y') { + return id; + } + return scaleOptions.axis || axisFromPosition(scaleOptions.position) || id.charAt(0).toLowerCase(); +} +function mergeScaleConfig(config, options) { + const chartDefaults = overrides[config.type] || {scales: {}}; + const configScales = options.scales || {}; + const chartIndexAxis = getIndexAxis(config.type, options); + const firstIDs = Object.create(null); + const scales = Object.create(null); + Object.keys(configScales).forEach(id => { + const scaleConf = configScales[id]; + if (!isObject(scaleConf)) { + return console.error(`Invalid scale configuration for scale: ${id}`); + } + if (scaleConf._proxy) { + return console.warn(`Ignoring resolver passed as options for scale: ${id}`); + } + const axis = determineAxis(id, scaleConf); + const defaultId = getDefaultScaleIDFromAxis(axis, chartIndexAxis); + const defaultScaleOptions = chartDefaults.scales || {}; + firstIDs[axis] = firstIDs[axis] || id; + scales[id] = mergeIf(Object.create(null), [{axis}, scaleConf, defaultScaleOptions[axis], defaultScaleOptions[defaultId]]); + }); + config.data.datasets.forEach(dataset => { + const type = dataset.type || config.type; + const indexAxis = dataset.indexAxis || getIndexAxis(type, options); + const datasetDefaults = overrides[type] || {}; + const defaultScaleOptions = datasetDefaults.scales || {}; + Object.keys(defaultScaleOptions).forEach(defaultID => { + const axis = getAxisFromDefaultScaleID(defaultID, indexAxis); + const id = dataset[axis + 'AxisID'] || firstIDs[axis] || axis; + scales[id] = scales[id] || Object.create(null); + mergeIf(scales[id], [{axis}, configScales[id], defaultScaleOptions[defaultID]]); + }); + }); + Object.keys(scales).forEach(key => { + const scale = scales[key]; + mergeIf(scale, [defaults.scales[scale.type], defaults.scale]); + }); + return scales; +} +function initOptions(config) { + const options = config.options || (config.options = {}); + options.plugins = valueOrDefault(options.plugins, {}); + options.scales = mergeScaleConfig(config, options); +} +function initData(data) { + data = data || {}; + data.datasets = data.datasets || []; + data.labels = data.labels || []; + return data; +} +function initConfig(config) { + config = config || {}; + config.data = initData(config.data); + initOptions(config); + return config; +} +const keyCache = new Map(); +const keysCached = new Set(); +function cachedKeys(cacheKey, generate) { + let keys = keyCache.get(cacheKey); + if (!keys) { + keys = generate(); + keyCache.set(cacheKey, keys); + keysCached.add(keys); + } + return keys; +} +const addIfFound = (set, obj, key) => { + const opts = resolveObjectKey(obj, key); + if (opts !== undefined) { + set.add(opts); + } +}; +class Config { + constructor(config) { + this._config = initConfig(config); + this._scopeCache = new Map(); + this._resolverCache = new Map(); + } + get platform() { + return this._config.platform; + } + get type() { + return this._config.type; + } + set type(type) { + this._config.type = type; + } + get data() { + return this._config.data; + } + set data(data) { + this._config.data = initData(data); + } + get options() { + return this._config.options; + } + set options(options) { + this._config.options = options; + } + get plugins() { + return this._config.plugins; + } + update() { + const config = this._config; + this.clearCache(); + initOptions(config); + } + clearCache() { + this._scopeCache.clear(); + this._resolverCache.clear(); + } + datasetScopeKeys(datasetType) { + return cachedKeys(datasetType, + () => [[ + `datasets.${datasetType}`, + '' + ]]); + } + datasetAnimationScopeKeys(datasetType, transition) { + return cachedKeys(`${datasetType}.transition.${transition}`, + () => [ + [ + `datasets.${datasetType}.transitions.${transition}`, + `transitions.${transition}`, + ], + [ + `datasets.${datasetType}`, + '' + ] + ]); + } + datasetElementScopeKeys(datasetType, elementType) { + return cachedKeys(`${datasetType}-${elementType}`, + () => [[ + `datasets.${datasetType}.elements.${elementType}`, + `datasets.${datasetType}`, + `elements.${elementType}`, + '' + ]]); + } + pluginScopeKeys(plugin) { + const id = plugin.id; + const type = this.type; + return cachedKeys(`${type}-plugin-${id}`, + () => [[ + `plugins.${id}`, + ...plugin.additionalOptionScopes || [], + ]]); + } + _cachedScopes(mainScope, resetCache) { + const _scopeCache = this._scopeCache; + let cache = _scopeCache.get(mainScope); + if (!cache || resetCache) { + cache = new Map(); + _scopeCache.set(mainScope, cache); + } + return cache; + } + getOptionScopes(mainScope, keyLists, resetCache) { + const {options, type} = this; + const cache = this._cachedScopes(mainScope, resetCache); + const cached = cache.get(keyLists); + if (cached) { + return cached; + } + const scopes = new Set(); + keyLists.forEach(keys => { + if (mainScope) { + scopes.add(mainScope); + keys.forEach(key => addIfFound(scopes, mainScope, key)); + } + keys.forEach(key => addIfFound(scopes, options, key)); + keys.forEach(key => addIfFound(scopes, overrides[type] || {}, key)); + keys.forEach(key => addIfFound(scopes, defaults, key)); + keys.forEach(key => addIfFound(scopes, descriptors, key)); + }); + const array = Array.from(scopes); + if (array.length === 0) { + array.push(Object.create(null)); + } + if (keysCached.has(keyLists)) { + cache.set(keyLists, array); + } + return array; + } + chartOptionScopes() { + const {options, type} = this; + return [ + options, + overrides[type] || {}, + defaults.datasets[type] || {}, + {type}, + defaults, + descriptors + ]; + } + resolveNamedOptions(scopes, names, context, prefixes = ['']) { + const result = {$shared: true}; + const {resolver, subPrefixes} = getResolver(this._resolverCache, scopes, prefixes); + let options = resolver; + if (needContext(resolver, names)) { + result.$shared = false; + context = isFunction(context) ? context() : context; + const subResolver = this.createResolver(scopes, context, subPrefixes); + options = _attachContext(resolver, context, subResolver); + } + for (const prop of names) { + result[prop] = options[prop]; + } + return result; + } + createResolver(scopes, context, prefixes = [''], descriptorDefaults) { + const {resolver} = getResolver(this._resolverCache, scopes, prefixes); + return isObject(context) + ? _attachContext(resolver, context, undefined, descriptorDefaults) + : resolver; + } +} +function getResolver(resolverCache, scopes, prefixes) { + let cache = resolverCache.get(scopes); + if (!cache) { + cache = new Map(); + resolverCache.set(scopes, cache); + } + const cacheKey = prefixes.join(); + let cached = cache.get(cacheKey); + if (!cached) { + const resolver = _createResolver(scopes, prefixes); + cached = { + resolver, + subPrefixes: prefixes.filter(p => !p.toLowerCase().includes('hover')) + }; + cache.set(cacheKey, cached); + } + return cached; +} +const hasFunction = value => isObject(value) + && Object.getOwnPropertyNames(value).reduce((acc, key) => acc || isFunction(value[key]), false); +function needContext(proxy, names) { + const {isScriptable, isIndexable} = _descriptors(proxy); + for (const prop of names) { + const scriptable = isScriptable(prop); + const indexable = isIndexable(prop); + const value = (indexable || scriptable) && proxy[prop]; + if ((scriptable && (isFunction(value) || hasFunction(value))) + || (indexable && isArray(value))) { + return true; + } + } + return false; +} + +var version = "3.7.1"; + +const KNOWN_POSITIONS = ['top', 'bottom', 'left', 'right', 'chartArea']; +function positionIsHorizontal(position, axis) { + return position === 'top' || position === 'bottom' || (KNOWN_POSITIONS.indexOf(position) === -1 && axis === 'x'); +} +function compare2Level(l1, l2) { + return function(a, b) { + return a[l1] === b[l1] + ? a[l2] - b[l2] + : a[l1] - b[l1]; + }; +} +function onAnimationsComplete(context) { + const chart = context.chart; + const animationOptions = chart.options.animation; + chart.notifyPlugins('afterRender'); + callback(animationOptions && animationOptions.onComplete, [context], chart); +} +function onAnimationProgress(context) { + const chart = context.chart; + const animationOptions = chart.options.animation; + callback(animationOptions && animationOptions.onProgress, [context], chart); +} +function getCanvas(item) { + if (_isDomSupported() && typeof item === 'string') { + item = document.getElementById(item); + } else if (item && item.length) { + item = item[0]; + } + if (item && item.canvas) { + item = item.canvas; + } + return item; +} +const instances = {}; +const getChart = (key) => { + const canvas = getCanvas(key); + return Object.values(instances).filter((c) => c.canvas === canvas).pop(); +}; +function moveNumericKeys(obj, start, move) { + const keys = Object.keys(obj); + for (const key of keys) { + const intKey = +key; + if (intKey >= start) { + const value = obj[key]; + delete obj[key]; + if (move > 0 || intKey > start) { + obj[intKey + move] = value; + } + } + } +} +function determineLastEvent(e, lastEvent, inChartArea, isClick) { + if (!inChartArea || e.type === 'mouseout') { + return null; + } + if (isClick) { + return lastEvent; + } + return e; +} +class Chart { + constructor(item, userConfig) { + const config = this.config = new Config(userConfig); + const initialCanvas = getCanvas(item); + const existingChart = getChart(initialCanvas); + if (existingChart) { + throw new Error( + 'Canvas is already in use. Chart with ID \'' + existingChart.id + '\'' + + ' must be destroyed before the canvas can be reused.' + ); + } + const options = config.createResolver(config.chartOptionScopes(), this.getContext()); + this.platform = new (config.platform || _detectPlatform(initialCanvas))(); + this.platform.updateConfig(config); + const context = this.platform.acquireContext(initialCanvas, options.aspectRatio); + const canvas = context && context.canvas; + const height = canvas && canvas.height; + const width = canvas && canvas.width; + this.id = uid(); + this.ctx = context; + this.canvas = canvas; + this.width = width; + this.height = height; + this._options = options; + this._aspectRatio = this.aspectRatio; + this._layers = []; + this._metasets = []; + this._stacks = undefined; + this.boxes = []; + this.currentDevicePixelRatio = undefined; + this.chartArea = undefined; + this._active = []; + this._lastEvent = undefined; + this._listeners = {}; + this._responsiveListeners = undefined; + this._sortedMetasets = []; + this.scales = {}; + this._plugins = new PluginService(); + this.$proxies = {}; + this._hiddenIndices = {}; + this.attached = false; + this._animationsDisabled = undefined; + this.$context = undefined; + this._doResize = debounce(mode => this.update(mode), options.resizeDelay || 0); + this._dataChanges = []; + instances[this.id] = this; + if (!context || !canvas) { + console.error("Failed to create chart: can't acquire context from the given item"); + return; + } + animator.listen(this, 'complete', onAnimationsComplete); + animator.listen(this, 'progress', onAnimationProgress); + this._initialize(); + if (this.attached) { + this.update(); + } + } + get aspectRatio() { + const {options: {aspectRatio, maintainAspectRatio}, width, height, _aspectRatio} = this; + if (!isNullOrUndef(aspectRatio)) { + return aspectRatio; + } + if (maintainAspectRatio && _aspectRatio) { + return _aspectRatio; + } + return height ? width / height : null; + } + get data() { + return this.config.data; + } + set data(data) { + this.config.data = data; + } + get options() { + return this._options; + } + set options(options) { + this.config.options = options; + } + _initialize() { + this.notifyPlugins('beforeInit'); + if (this.options.responsive) { + this.resize(); + } else { + retinaScale(this, this.options.devicePixelRatio); + } + this.bindEvents(); + this.notifyPlugins('afterInit'); + return this; + } + clear() { + clearCanvas(this.canvas, this.ctx); + return this; + } + stop() { + animator.stop(this); + return this; + } + resize(width, height) { + if (!animator.running(this)) { + this._resize(width, height); + } else { + this._resizeBeforeDraw = {width, height}; + } + } + _resize(width, height) { + const options = this.options; + const canvas = this.canvas; + const aspectRatio = options.maintainAspectRatio && this.aspectRatio; + const newSize = this.platform.getMaximumSize(canvas, width, height, aspectRatio); + const newRatio = options.devicePixelRatio || this.platform.getDevicePixelRatio(); + const mode = this.width ? 'resize' : 'attach'; + this.width = newSize.width; + this.height = newSize.height; + this._aspectRatio = this.aspectRatio; + if (!retinaScale(this, newRatio, true)) { + return; + } + this.notifyPlugins('resize', {size: newSize}); + callback(options.onResize, [this, newSize], this); + if (this.attached) { + if (this._doResize(mode)) { + this.render(); + } + } + } + ensureScalesHaveIDs() { + const options = this.options; + const scalesOptions = options.scales || {}; + each(scalesOptions, (axisOptions, axisID) => { + axisOptions.id = axisID; + }); + } + buildOrUpdateScales() { + const options = this.options; + const scaleOpts = options.scales; + const scales = this.scales; + const updated = Object.keys(scales).reduce((obj, id) => { + obj[id] = false; + return obj; + }, {}); + let items = []; + if (scaleOpts) { + items = items.concat( + Object.keys(scaleOpts).map((id) => { + const scaleOptions = scaleOpts[id]; + const axis = determineAxis(id, scaleOptions); + const isRadial = axis === 'r'; + const isHorizontal = axis === 'x'; + return { + options: scaleOptions, + dposition: isRadial ? 'chartArea' : isHorizontal ? 'bottom' : 'left', + dtype: isRadial ? 'radialLinear' : isHorizontal ? 'category' : 'linear' + }; + }) + ); + } + each(items, (item) => { + const scaleOptions = item.options; + const id = scaleOptions.id; + const axis = determineAxis(id, scaleOptions); + const scaleType = valueOrDefault(scaleOptions.type, item.dtype); + if (scaleOptions.position === undefined || positionIsHorizontal(scaleOptions.position, axis) !== positionIsHorizontal(item.dposition)) { + scaleOptions.position = item.dposition; + } + updated[id] = true; + let scale = null; + if (id in scales && scales[id].type === scaleType) { + scale = scales[id]; + } else { + const scaleClass = registry.getScale(scaleType); + scale = new scaleClass({ + id, + type: scaleType, + ctx: this.ctx, + chart: this + }); + scales[scale.id] = scale; + } + scale.init(scaleOptions, options); + }); + each(updated, (hasUpdated, id) => { + if (!hasUpdated) { + delete scales[id]; + } + }); + each(scales, (scale) => { + layouts.configure(this, scale, scale.options); + layouts.addBox(this, scale); + }); + } + _updateMetasets() { + const metasets = this._metasets; + const numData = this.data.datasets.length; + const numMeta = metasets.length; + metasets.sort((a, b) => a.index - b.index); + if (numMeta > numData) { + for (let i = numData; i < numMeta; ++i) { + this._destroyDatasetMeta(i); + } + metasets.splice(numData, numMeta - numData); + } + this._sortedMetasets = metasets.slice(0).sort(compare2Level('order', 'index')); + } + _removeUnreferencedMetasets() { + const {_metasets: metasets, data: {datasets}} = this; + if (metasets.length > datasets.length) { + delete this._stacks; + } + metasets.forEach((meta, index) => { + if (datasets.filter(x => x === meta._dataset).length === 0) { + this._destroyDatasetMeta(index); + } + }); + } + buildOrUpdateControllers() { + const newControllers = []; + const datasets = this.data.datasets; + let i, ilen; + this._removeUnreferencedMetasets(); + for (i = 0, ilen = datasets.length; i < ilen; i++) { + const dataset = datasets[i]; + let meta = this.getDatasetMeta(i); + const type = dataset.type || this.config.type; + if (meta.type && meta.type !== type) { + this._destroyDatasetMeta(i); + meta = this.getDatasetMeta(i); + } + meta.type = type; + meta.indexAxis = dataset.indexAxis || getIndexAxis(type, this.options); + meta.order = dataset.order || 0; + meta.index = i; + meta.label = '' + dataset.label; + meta.visible = this.isDatasetVisible(i); + if (meta.controller) { + meta.controller.updateIndex(i); + meta.controller.linkScales(); + } else { + const ControllerClass = registry.getController(type); + const {datasetElementType, dataElementType} = defaults.datasets[type]; + Object.assign(ControllerClass.prototype, { + dataElementType: registry.getElement(dataElementType), + datasetElementType: datasetElementType && registry.getElement(datasetElementType) + }); + meta.controller = new ControllerClass(this, i); + newControllers.push(meta.controller); + } + } + this._updateMetasets(); + return newControllers; + } + _resetElements() { + each(this.data.datasets, (dataset, datasetIndex) => { + this.getDatasetMeta(datasetIndex).controller.reset(); + }, this); + } + reset() { + this._resetElements(); + this.notifyPlugins('reset'); + } + update(mode) { + const config = this.config; + config.update(); + const options = this._options = config.createResolver(config.chartOptionScopes(), this.getContext()); + const animsDisabled = this._animationsDisabled = !options.animation; + this._updateScales(); + this._checkEventBindings(); + this._updateHiddenIndices(); + this._plugins.invalidate(); + if (this.notifyPlugins('beforeUpdate', {mode, cancelable: true}) === false) { + return; + } + const newControllers = this.buildOrUpdateControllers(); + this.notifyPlugins('beforeElementsUpdate'); + let minPadding = 0; + for (let i = 0, ilen = this.data.datasets.length; i < ilen; i++) { + const {controller} = this.getDatasetMeta(i); + const reset = !animsDisabled && newControllers.indexOf(controller) === -1; + controller.buildOrUpdateElements(reset); + minPadding = Math.max(+controller.getMaxOverflow(), minPadding); + } + minPadding = this._minPadding = options.layout.autoPadding ? minPadding : 0; + this._updateLayout(minPadding); + if (!animsDisabled) { + each(newControllers, (controller) => { + controller.reset(); + }); + } + this._updateDatasets(mode); + this.notifyPlugins('afterUpdate', {mode}); + this._layers.sort(compare2Level('z', '_idx')); + const {_active, _lastEvent} = this; + if (_lastEvent) { + this._eventHandler(_lastEvent, true); + } else if (_active.length) { + this._updateHoverStyles(_active, _active, true); + } + this.render(); + } + _updateScales() { + each(this.scales, (scale) => { + layouts.removeBox(this, scale); + }); + this.ensureScalesHaveIDs(); + this.buildOrUpdateScales(); + } + _checkEventBindings() { + const options = this.options; + const existingEvents = new Set(Object.keys(this._listeners)); + const newEvents = new Set(options.events); + if (!setsEqual(existingEvents, newEvents) || !!this._responsiveListeners !== options.responsive) { + this.unbindEvents(); + this.bindEvents(); + } + } + _updateHiddenIndices() { + const {_hiddenIndices} = this; + const changes = this._getUniformDataChanges() || []; + for (const {method, start, count} of changes) { + const move = method === '_removeElements' ? -count : count; + moveNumericKeys(_hiddenIndices, start, move); + } + } + _getUniformDataChanges() { + const _dataChanges = this._dataChanges; + if (!_dataChanges || !_dataChanges.length) { + return; + } + this._dataChanges = []; + const datasetCount = this.data.datasets.length; + const makeSet = (idx) => new Set( + _dataChanges + .filter(c => c[0] === idx) + .map((c, i) => i + ',' + c.splice(1).join(',')) + ); + const changeSet = makeSet(0); + for (let i = 1; i < datasetCount; i++) { + if (!setsEqual(changeSet, makeSet(i))) { + return; + } + } + return Array.from(changeSet) + .map(c => c.split(',')) + .map(a => ({method: a[1], start: +a[2], count: +a[3]})); + } + _updateLayout(minPadding) { + if (this.notifyPlugins('beforeLayout', {cancelable: true}) === false) { + return; + } + layouts.update(this, this.width, this.height, minPadding); + const area = this.chartArea; + const noArea = area.width <= 0 || area.height <= 0; + this._layers = []; + each(this.boxes, (box) => { + if (noArea && box.position === 'chartArea') { + return; + } + if (box.configure) { + box.configure(); + } + this._layers.push(...box._layers()); + }, this); + this._layers.forEach((item, index) => { + item._idx = index; + }); + this.notifyPlugins('afterLayout'); + } + _updateDatasets(mode) { + if (this.notifyPlugins('beforeDatasetsUpdate', {mode, cancelable: true}) === false) { + return; + } + for (let i = 0, ilen = this.data.datasets.length; i < ilen; ++i) { + this.getDatasetMeta(i).controller.configure(); + } + for (let i = 0, ilen = this.data.datasets.length; i < ilen; ++i) { + this._updateDataset(i, isFunction(mode) ? mode({datasetIndex: i}) : mode); + } + this.notifyPlugins('afterDatasetsUpdate', {mode}); + } + _updateDataset(index, mode) { + const meta = this.getDatasetMeta(index); + const args = {meta, index, mode, cancelable: true}; + if (this.notifyPlugins('beforeDatasetUpdate', args) === false) { + return; + } + meta.controller._update(mode); + args.cancelable = false; + this.notifyPlugins('afterDatasetUpdate', args); + } + render() { + if (this.notifyPlugins('beforeRender', {cancelable: true}) === false) { + return; + } + if (animator.has(this)) { + if (this.attached && !animator.running(this)) { + animator.start(this); + } + } else { + this.draw(); + onAnimationsComplete({chart: this}); + } + } + draw() { + let i; + if (this._resizeBeforeDraw) { + const {width, height} = this._resizeBeforeDraw; + this._resize(width, height); + this._resizeBeforeDraw = null; + } + this.clear(); + if (this.width <= 0 || this.height <= 0) { + return; + } + if (this.notifyPlugins('beforeDraw', {cancelable: true}) === false) { + return; + } + const layers = this._layers; + for (i = 0; i < layers.length && layers[i].z <= 0; ++i) { + layers[i].draw(this.chartArea); + } + this._drawDatasets(); + for (; i < layers.length; ++i) { + layers[i].draw(this.chartArea); + } + this.notifyPlugins('afterDraw'); + } + _getSortedDatasetMetas(filterVisible) { + const metasets = this._sortedMetasets; + const result = []; + let i, ilen; + for (i = 0, ilen = metasets.length; i < ilen; ++i) { + const meta = metasets[i]; + if (!filterVisible || meta.visible) { + result.push(meta); + } + } + return result; + } + getSortedVisibleDatasetMetas() { + return this._getSortedDatasetMetas(true); + } + _drawDatasets() { + if (this.notifyPlugins('beforeDatasetsDraw', {cancelable: true}) === false) { + return; + } + const metasets = this.getSortedVisibleDatasetMetas(); + for (let i = metasets.length - 1; i >= 0; --i) { + this._drawDataset(metasets[i]); + } + this.notifyPlugins('afterDatasetsDraw'); + } + _drawDataset(meta) { + const ctx = this.ctx; + const clip = meta._clip; + const useClip = !clip.disabled; + const area = this.chartArea; + const args = { + meta, + index: meta.index, + cancelable: true + }; + if (this.notifyPlugins('beforeDatasetDraw', args) === false) { + return; + } + if (useClip) { + clipArea(ctx, { + left: clip.left === false ? 0 : area.left - clip.left, + right: clip.right === false ? this.width : area.right + clip.right, + top: clip.top === false ? 0 : area.top - clip.top, + bottom: clip.bottom === false ? this.height : area.bottom + clip.bottom + }); + } + meta.controller.draw(); + if (useClip) { + unclipArea(ctx); + } + args.cancelable = false; + this.notifyPlugins('afterDatasetDraw', args); + } + getElementsAtEventForMode(e, mode, options, useFinalPosition) { + const method = Interaction.modes[mode]; + if (typeof method === 'function') { + return method(this, e, options, useFinalPosition); + } + return []; + } + getDatasetMeta(datasetIndex) { + const dataset = this.data.datasets[datasetIndex]; + const metasets = this._metasets; + let meta = metasets.filter(x => x && x._dataset === dataset).pop(); + if (!meta) { + meta = { + type: null, + data: [], + dataset: null, + controller: null, + hidden: null, + xAxisID: null, + yAxisID: null, + order: dataset && dataset.order || 0, + index: datasetIndex, + _dataset: dataset, + _parsed: [], + _sorted: false + }; + metasets.push(meta); + } + return meta; + } + getContext() { + return this.$context || (this.$context = createContext(null, {chart: this, type: 'chart'})); + } + getVisibleDatasetCount() { + return this.getSortedVisibleDatasetMetas().length; + } + isDatasetVisible(datasetIndex) { + const dataset = this.data.datasets[datasetIndex]; + if (!dataset) { + return false; + } + const meta = this.getDatasetMeta(datasetIndex); + return typeof meta.hidden === 'boolean' ? !meta.hidden : !dataset.hidden; + } + setDatasetVisibility(datasetIndex, visible) { + const meta = this.getDatasetMeta(datasetIndex); + meta.hidden = !visible; + } + toggleDataVisibility(index) { + this._hiddenIndices[index] = !this._hiddenIndices[index]; + } + getDataVisibility(index) { + return !this._hiddenIndices[index]; + } + _updateVisibility(datasetIndex, dataIndex, visible) { + const mode = visible ? 'show' : 'hide'; + const meta = this.getDatasetMeta(datasetIndex); + const anims = meta.controller._resolveAnimations(undefined, mode); + if (defined(dataIndex)) { + meta.data[dataIndex].hidden = !visible; + this.update(); + } else { + this.setDatasetVisibility(datasetIndex, visible); + anims.update(meta, {visible}); + this.update((ctx) => ctx.datasetIndex === datasetIndex ? mode : undefined); + } + } + hide(datasetIndex, dataIndex) { + this._updateVisibility(datasetIndex, dataIndex, false); + } + show(datasetIndex, dataIndex) { + this._updateVisibility(datasetIndex, dataIndex, true); + } + _destroyDatasetMeta(datasetIndex) { + const meta = this._metasets[datasetIndex]; + if (meta && meta.controller) { + meta.controller._destroy(); + } + delete this._metasets[datasetIndex]; + } + _stop() { + let i, ilen; + this.stop(); + animator.remove(this); + for (i = 0, ilen = this.data.datasets.length; i < ilen; ++i) { + this._destroyDatasetMeta(i); + } + } + destroy() { + this.notifyPlugins('beforeDestroy'); + const {canvas, ctx} = this; + this._stop(); + this.config.clearCache(); + if (canvas) { + this.unbindEvents(); + clearCanvas(canvas, ctx); + this.platform.releaseContext(ctx); + this.canvas = null; + this.ctx = null; + } + this.notifyPlugins('destroy'); + delete instances[this.id]; + this.notifyPlugins('afterDestroy'); + } + toBase64Image(...args) { + return this.canvas.toDataURL(...args); + } + bindEvents() { + this.bindUserEvents(); + if (this.options.responsive) { + this.bindResponsiveEvents(); + } else { + this.attached = true; + } + } + bindUserEvents() { + const listeners = this._listeners; + const platform = this.platform; + const _add = (type, listener) => { + platform.addEventListener(this, type, listener); + listeners[type] = listener; + }; + const listener = (e, x, y) => { + e.offsetX = x; + e.offsetY = y; + this._eventHandler(e); + }; + each(this.options.events, (type) => _add(type, listener)); + } + bindResponsiveEvents() { + if (!this._responsiveListeners) { + this._responsiveListeners = {}; + } + const listeners = this._responsiveListeners; + const platform = this.platform; + const _add = (type, listener) => { + platform.addEventListener(this, type, listener); + listeners[type] = listener; + }; + const _remove = (type, listener) => { + if (listeners[type]) { + platform.removeEventListener(this, type, listener); + delete listeners[type]; + } + }; + const listener = (width, height) => { + if (this.canvas) { + this.resize(width, height); + } + }; + let detached; + const attached = () => { + _remove('attach', attached); + this.attached = true; + this.resize(); + _add('resize', listener); + _add('detach', detached); + }; + detached = () => { + this.attached = false; + _remove('resize', listener); + this._stop(); + this._resize(0, 0); + _add('attach', attached); + }; + if (platform.isAttached(this.canvas)) { + attached(); + } else { + detached(); + } + } + unbindEvents() { + each(this._listeners, (listener, type) => { + this.platform.removeEventListener(this, type, listener); + }); + this._listeners = {}; + each(this._responsiveListeners, (listener, type) => { + this.platform.removeEventListener(this, type, listener); + }); + this._responsiveListeners = undefined; + } + updateHoverStyle(items, mode, enabled) { + const prefix = enabled ? 'set' : 'remove'; + let meta, item, i, ilen; + if (mode === 'dataset') { + meta = this.getDatasetMeta(items[0].datasetIndex); + meta.controller['_' + prefix + 'DatasetHoverStyle'](); + } + for (i = 0, ilen = items.length; i < ilen; ++i) { + item = items[i]; + const controller = item && this.getDatasetMeta(item.datasetIndex).controller; + if (controller) { + controller[prefix + 'HoverStyle'](item.element, item.datasetIndex, item.index); + } + } + } + getActiveElements() { + return this._active || []; + } + setActiveElements(activeElements) { + const lastActive = this._active || []; + const active = activeElements.map(({datasetIndex, index}) => { + const meta = this.getDatasetMeta(datasetIndex); + if (!meta) { + throw new Error('No dataset found at index ' + datasetIndex); + } + return { + datasetIndex, + element: meta.data[index], + index, + }; + }); + const changed = !_elementsEqual(active, lastActive); + if (changed) { + this._active = active; + this._lastEvent = null; + this._updateHoverStyles(active, lastActive); + } + } + notifyPlugins(hook, args, filter) { + return this._plugins.notify(this, hook, args, filter); + } + _updateHoverStyles(active, lastActive, replay) { + const hoverOptions = this.options.hover; + const diff = (a, b) => a.filter(x => !b.some(y => x.datasetIndex === y.datasetIndex && x.index === y.index)); + const deactivated = diff(lastActive, active); + const activated = replay ? active : diff(active, lastActive); + if (deactivated.length) { + this.updateHoverStyle(deactivated, hoverOptions.mode, false); + } + if (activated.length && hoverOptions.mode) { + this.updateHoverStyle(activated, hoverOptions.mode, true); + } + } + _eventHandler(e, replay) { + const args = { + event: e, + replay, + cancelable: true, + inChartArea: _isPointInArea(e, this.chartArea, this._minPadding) + }; + const eventFilter = (plugin) => (plugin.options.events || this.options.events).includes(e.native.type); + if (this.notifyPlugins('beforeEvent', args, eventFilter) === false) { + return; + } + const changed = this._handleEvent(e, replay, args.inChartArea); + args.cancelable = false; + this.notifyPlugins('afterEvent', args, eventFilter); + if (changed || args.changed) { + this.render(); + } + return this; + } + _handleEvent(e, replay, inChartArea) { + const {_active: lastActive = [], options} = this; + const useFinalPosition = replay; + const active = this._getActiveElements(e, lastActive, inChartArea, useFinalPosition); + const isClick = _isClickEvent(e); + const lastEvent = determineLastEvent(e, this._lastEvent, inChartArea, isClick); + if (inChartArea) { + this._lastEvent = null; + callback(options.onHover, [e, active, this], this); + if (isClick) { + callback(options.onClick, [e, active, this], this); + } + } + const changed = !_elementsEqual(active, lastActive); + if (changed || replay) { + this._active = active; + this._updateHoverStyles(active, lastActive, replay); + } + this._lastEvent = lastEvent; + return changed; + } + _getActiveElements(e, lastActive, inChartArea, useFinalPosition) { + if (e.type === 'mouseout') { + return []; + } + if (!inChartArea) { + return lastActive; + } + const hoverOptions = this.options.hover; + return this.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions, useFinalPosition); + } +} +const invalidatePlugins = () => each(Chart.instances, (chart) => chart._plugins.invalidate()); +const enumerable = true; +Object.defineProperties(Chart, { + defaults: { + enumerable, + value: defaults + }, + instances: { + enumerable, + value: instances + }, + overrides: { + enumerable, + value: overrides + }, + registry: { + enumerable, + value: registry + }, + version: { + enumerable, + value: version + }, + getChart: { + enumerable, + value: getChart + }, + register: { + enumerable, + value: (...items) => { + registry.add(...items); + invalidatePlugins(); + } + }, + unregister: { + enumerable, + value: (...items) => { + registry.remove(...items); + invalidatePlugins(); + } + } +}); + +function abstract() { + throw new Error('This method is not implemented: Check that a complete date adapter is provided.'); +} +class DateAdapter { + constructor(options) { + this.options = options || {}; + } + formats() { + return abstract(); + } + parse(value, format) { + return abstract(); + } + format(timestamp, format) { + return abstract(); + } + add(timestamp, amount, unit) { + return abstract(); + } + diff(a, b, unit) { + return abstract(); + } + startOf(timestamp, unit, weekday) { + return abstract(); + } + endOf(timestamp, unit) { + return abstract(); + } +} +DateAdapter.override = function(members) { + Object.assign(DateAdapter.prototype, members); +}; +var _adapters = { + _date: DateAdapter +}; + +function getAllScaleValues(scale, type) { + if (!scale._cache.$bar) { + const visibleMetas = scale.getMatchingVisibleMetas(type); + let values = []; + for (let i = 0, ilen = visibleMetas.length; i < ilen; i++) { + values = values.concat(visibleMetas[i].controller.getAllParsedValues(scale)); + } + scale._cache.$bar = _arrayUnique(values.sort((a, b) => a - b)); + } + return scale._cache.$bar; +} +function computeMinSampleSize(meta) { + const scale = meta.iScale; + const values = getAllScaleValues(scale, meta.type); + let min = scale._length; + let i, ilen, curr, prev; + const updateMinAndPrev = () => { + if (curr === 32767 || curr === -32768) { + return; + } + if (defined(prev)) { + min = Math.min(min, Math.abs(curr - prev) || min); + } + prev = curr; + }; + for (i = 0, ilen = values.length; i < ilen; ++i) { + curr = scale.getPixelForValue(values[i]); + updateMinAndPrev(); + } + prev = undefined; + for (i = 0, ilen = scale.ticks.length; i < ilen; ++i) { + curr = scale.getPixelForTick(i); + updateMinAndPrev(); + } + return min; +} +function computeFitCategoryTraits(index, ruler, options, stackCount) { + const thickness = options.barThickness; + let size, ratio; + if (isNullOrUndef(thickness)) { + size = ruler.min * options.categoryPercentage; + ratio = options.barPercentage; + } else { + size = thickness * stackCount; + ratio = 1; + } + return { + chunk: size / stackCount, + ratio, + start: ruler.pixels[index] - (size / 2) + }; +} +function computeFlexCategoryTraits(index, ruler, options, stackCount) { + const pixels = ruler.pixels; + const curr = pixels[index]; + let prev = index > 0 ? pixels[index - 1] : null; + let next = index < pixels.length - 1 ? pixels[index + 1] : null; + const percent = options.categoryPercentage; + if (prev === null) { + prev = curr - (next === null ? ruler.end - ruler.start : next - curr); + } + if (next === null) { + next = curr + curr - prev; + } + const start = curr - (curr - Math.min(prev, next)) / 2 * percent; + const size = Math.abs(next - prev) / 2 * percent; + return { + chunk: size / stackCount, + ratio: options.barPercentage, + start + }; +} +function parseFloatBar(entry, item, vScale, i) { + const startValue = vScale.parse(entry[0], i); + const endValue = vScale.parse(entry[1], i); + const min = Math.min(startValue, endValue); + const max = Math.max(startValue, endValue); + let barStart = min; + let barEnd = max; + if (Math.abs(min) > Math.abs(max)) { + barStart = max; + barEnd = min; + } + item[vScale.axis] = barEnd; + item._custom = { + barStart, + barEnd, + start: startValue, + end: endValue, + min, + max + }; +} +function parseValue(entry, item, vScale, i) { + if (isArray(entry)) { + parseFloatBar(entry, item, vScale, i); + } else { + item[vScale.axis] = vScale.parse(entry, i); + } + return item; +} +function parseArrayOrPrimitive(meta, data, start, count) { + const iScale = meta.iScale; + const vScale = meta.vScale; + const labels = iScale.getLabels(); + const singleScale = iScale === vScale; + const parsed = []; + let i, ilen, item, entry; + for (i = start, ilen = start + count; i < ilen; ++i) { + entry = data[i]; + item = {}; + item[iScale.axis] = singleScale || iScale.parse(labels[i], i); + parsed.push(parseValue(entry, item, vScale, i)); + } + return parsed; +} +function isFloatBar(custom) { + return custom && custom.barStart !== undefined && custom.barEnd !== undefined; +} +function barSign(size, vScale, actualBase) { + if (size !== 0) { + return sign(size); + } + return (vScale.isHorizontal() ? 1 : -1) * (vScale.min >= actualBase ? 1 : -1); +} +function borderProps(properties) { + let reverse, start, end, top, bottom; + if (properties.horizontal) { + reverse = properties.base > properties.x; + start = 'left'; + end = 'right'; + } else { + reverse = properties.base < properties.y; + start = 'bottom'; + end = 'top'; + } + if (reverse) { + top = 'end'; + bottom = 'start'; + } else { + top = 'start'; + bottom = 'end'; + } + return {start, end, reverse, top, bottom}; +} +function setBorderSkipped(properties, options, stack, index) { + let edge = options.borderSkipped; + const res = {}; + if (!edge) { + properties.borderSkipped = res; + return; + } + const {start, end, reverse, top, bottom} = borderProps(properties); + if (edge === 'middle' && stack) { + properties.enableBorderRadius = true; + if ((stack._top || 0) === index) { + edge = top; + } else if ((stack._bottom || 0) === index) { + edge = bottom; + } else { + res[parseEdge(bottom, start, end, reverse)] = true; + edge = top; + } + } + res[parseEdge(edge, start, end, reverse)] = true; + properties.borderSkipped = res; +} +function parseEdge(edge, a, b, reverse) { + if (reverse) { + edge = swap(edge, a, b); + edge = startEnd(edge, b, a); + } else { + edge = startEnd(edge, a, b); + } + return edge; +} +function swap(orig, v1, v2) { + return orig === v1 ? v2 : orig === v2 ? v1 : orig; +} +function startEnd(v, start, end) { + return v === 'start' ? start : v === 'end' ? end : v; +} +function setInflateAmount(properties, {inflateAmount}, ratio) { + properties.inflateAmount = inflateAmount === 'auto' + ? ratio === 1 ? 0.33 : 0 + : inflateAmount; +} +class BarController extends DatasetController { + parsePrimitiveData(meta, data, start, count) { + return parseArrayOrPrimitive(meta, data, start, count); + } + parseArrayData(meta, data, start, count) { + return parseArrayOrPrimitive(meta, data, start, count); + } + parseObjectData(meta, data, start, count) { + const {iScale, vScale} = meta; + const {xAxisKey = 'x', yAxisKey = 'y'} = this._parsing; + const iAxisKey = iScale.axis === 'x' ? xAxisKey : yAxisKey; + const vAxisKey = vScale.axis === 'x' ? xAxisKey : yAxisKey; + const parsed = []; + let i, ilen, item, obj; + for (i = start, ilen = start + count; i < ilen; ++i) { + obj = data[i]; + item = {}; + item[iScale.axis] = iScale.parse(resolveObjectKey(obj, iAxisKey), i); + parsed.push(parseValue(resolveObjectKey(obj, vAxisKey), item, vScale, i)); + } + return parsed; + } + updateRangeFromParsed(range, scale, parsed, stack) { + super.updateRangeFromParsed(range, scale, parsed, stack); + const custom = parsed._custom; + if (custom && scale === this._cachedMeta.vScale) { + range.min = Math.min(range.min, custom.min); + range.max = Math.max(range.max, custom.max); + } + } + getMaxOverflow() { + return 0; + } + getLabelAndValue(index) { + const meta = this._cachedMeta; + const {iScale, vScale} = meta; + const parsed = this.getParsed(index); + const custom = parsed._custom; + const value = isFloatBar(custom) + ? '[' + custom.start + ', ' + custom.end + ']' + : '' + vScale.getLabelForValue(parsed[vScale.axis]); + return { + label: '' + iScale.getLabelForValue(parsed[iScale.axis]), + value + }; + } + initialize() { + this.enableOptionSharing = true; + super.initialize(); + const meta = this._cachedMeta; + meta.stack = this.getDataset().stack; + } + update(mode) { + const meta = this._cachedMeta; + this.updateElements(meta.data, 0, meta.data.length, mode); + } + updateElements(bars, start, count, mode) { + const reset = mode === 'reset'; + const {index, _cachedMeta: {vScale}} = this; + const base = vScale.getBasePixel(); + const horizontal = vScale.isHorizontal(); + const ruler = this._getRuler(); + const firstOpts = this.resolveDataElementOptions(start, mode); + const sharedOptions = this.getSharedOptions(firstOpts); + const includeOptions = this.includeOptions(mode, sharedOptions); + this.updateSharedOptions(sharedOptions, mode, firstOpts); + for (let i = start; i < start + count; i++) { + const parsed = this.getParsed(i); + const vpixels = reset || isNullOrUndef(parsed[vScale.axis]) ? {base, head: base} : this._calculateBarValuePixels(i); + const ipixels = this._calculateBarIndexPixels(i, ruler); + const stack = (parsed._stacks || {})[vScale.axis]; + const properties = { + horizontal, + base: vpixels.base, + enableBorderRadius: !stack || isFloatBar(parsed._custom) || (index === stack._top || index === stack._bottom), + x: horizontal ? vpixels.head : ipixels.center, + y: horizontal ? ipixels.center : vpixels.head, + height: horizontal ? ipixels.size : Math.abs(vpixels.size), + width: horizontal ? Math.abs(vpixels.size) : ipixels.size + }; + if (includeOptions) { + properties.options = sharedOptions || this.resolveDataElementOptions(i, bars[i].active ? 'active' : mode); + } + const options = properties.options || bars[i].options; + setBorderSkipped(properties, options, stack, index); + setInflateAmount(properties, options, ruler.ratio); + this.updateElement(bars[i], i, properties, mode); + } + } + _getStacks(last, dataIndex) { + const meta = this._cachedMeta; + const iScale = meta.iScale; + const metasets = iScale.getMatchingVisibleMetas(this._type); + const stacked = iScale.options.stacked; + const ilen = metasets.length; + const stacks = []; + let i, item; + for (i = 0; i < ilen; ++i) { + item = metasets[i]; + if (!item.controller.options.grouped) { + continue; + } + if (typeof dataIndex !== 'undefined') { + const val = item.controller.getParsed(dataIndex)[ + item.controller._cachedMeta.vScale.axis + ]; + if (isNullOrUndef(val) || isNaN(val)) { + continue; + } + } + if (stacked === false || stacks.indexOf(item.stack) === -1 || + (stacked === undefined && item.stack === undefined)) { + stacks.push(item.stack); + } + if (item.index === last) { + break; + } + } + if (!stacks.length) { + stacks.push(undefined); + } + return stacks; + } + _getStackCount(index) { + return this._getStacks(undefined, index).length; + } + _getStackIndex(datasetIndex, name, dataIndex) { + const stacks = this._getStacks(datasetIndex, dataIndex); + const index = (name !== undefined) + ? stacks.indexOf(name) + : -1; + return (index === -1) + ? stacks.length - 1 + : index; + } + _getRuler() { + const opts = this.options; + const meta = this._cachedMeta; + const iScale = meta.iScale; + const pixels = []; + let i, ilen; + for (i = 0, ilen = meta.data.length; i < ilen; ++i) { + pixels.push(iScale.getPixelForValue(this.getParsed(i)[iScale.axis], i)); + } + const barThickness = opts.barThickness; + const min = barThickness || computeMinSampleSize(meta); + return { + min, + pixels, + start: iScale._startPixel, + end: iScale._endPixel, + stackCount: this._getStackCount(), + scale: iScale, + grouped: opts.grouped, + ratio: barThickness ? 1 : opts.categoryPercentage * opts.barPercentage + }; + } + _calculateBarValuePixels(index) { + const {_cachedMeta: {vScale, _stacked}, options: {base: baseValue, minBarLength}} = this; + const actualBase = baseValue || 0; + const parsed = this.getParsed(index); + const custom = parsed._custom; + const floating = isFloatBar(custom); + let value = parsed[vScale.axis]; + let start = 0; + let length = _stacked ? this.applyStack(vScale, parsed, _stacked) : value; + let head, size; + if (length !== value) { + start = length - value; + length = value; + } + if (floating) { + value = custom.barStart; + length = custom.barEnd - custom.barStart; + if (value !== 0 && sign(value) !== sign(custom.barEnd)) { + start = 0; + } + start += value; + } + const startValue = !isNullOrUndef(baseValue) && !floating ? baseValue : start; + let base = vScale.getPixelForValue(startValue); + if (this.chart.getDataVisibility(index)) { + head = vScale.getPixelForValue(start + length); + } else { + head = base; + } + size = head - base; + if (Math.abs(size) < minBarLength) { + size = barSign(size, vScale, actualBase) * minBarLength; + if (value === actualBase) { + base -= size / 2; + } + head = base + size; + } + if (base === vScale.getPixelForValue(actualBase)) { + const halfGrid = sign(size) * vScale.getLineWidthForValue(actualBase) / 2; + base += halfGrid; + size -= halfGrid; + } + return { + size, + base, + head, + center: head + size / 2 + }; + } + _calculateBarIndexPixels(index, ruler) { + const scale = ruler.scale; + const options = this.options; + const skipNull = options.skipNull; + const maxBarThickness = valueOrDefault(options.maxBarThickness, Infinity); + let center, size; + if (ruler.grouped) { + const stackCount = skipNull ? this._getStackCount(index) : ruler.stackCount; + const range = options.barThickness === 'flex' + ? computeFlexCategoryTraits(index, ruler, options, stackCount) + : computeFitCategoryTraits(index, ruler, options, stackCount); + const stackIndex = this._getStackIndex(this.index, this._cachedMeta.stack, skipNull ? index : undefined); + center = range.start + (range.chunk * stackIndex) + (range.chunk / 2); + size = Math.min(maxBarThickness, range.chunk * range.ratio); + } else { + center = scale.getPixelForValue(this.getParsed(index)[scale.axis], index); + size = Math.min(maxBarThickness, ruler.min * ruler.ratio); + } + return { + base: center - size / 2, + head: center + size / 2, + center, + size + }; + } + draw() { + const meta = this._cachedMeta; + const vScale = meta.vScale; + const rects = meta.data; + const ilen = rects.length; + let i = 0; + for (; i < ilen; ++i) { + if (this.getParsed(i)[vScale.axis] !== null) { + rects[i].draw(this._ctx); + } + } + } +} +BarController.id = 'bar'; +BarController.defaults = { + datasetElementType: false, + dataElementType: 'bar', + categoryPercentage: 0.8, + barPercentage: 0.9, + grouped: true, + animations: { + numbers: { + type: 'number', + properties: ['x', 'y', 'base', 'width', 'height'] + } + } +}; +BarController.overrides = { + scales: { + _index_: { + type: 'category', + offset: true, + grid: { + offset: true + } + }, + _value_: { + type: 'linear', + beginAtZero: true, + } + } +}; + +class BubbleController extends DatasetController { + initialize() { + this.enableOptionSharing = true; + super.initialize(); + } + parsePrimitiveData(meta, data, start, count) { + const parsed = super.parsePrimitiveData(meta, data, start, count); + for (let i = 0; i < parsed.length; i++) { + parsed[i]._custom = this.resolveDataElementOptions(i + start).radius; + } + return parsed; + } + parseArrayData(meta, data, start, count) { + const parsed = super.parseArrayData(meta, data, start, count); + for (let i = 0; i < parsed.length; i++) { + const item = data[start + i]; + parsed[i]._custom = valueOrDefault(item[2], this.resolveDataElementOptions(i + start).radius); + } + return parsed; + } + parseObjectData(meta, data, start, count) { + const parsed = super.parseObjectData(meta, data, start, count); + for (let i = 0; i < parsed.length; i++) { + const item = data[start + i]; + parsed[i]._custom = valueOrDefault(item && item.r && +item.r, this.resolveDataElementOptions(i + start).radius); + } + return parsed; + } + getMaxOverflow() { + const data = this._cachedMeta.data; + let max = 0; + for (let i = data.length - 1; i >= 0; --i) { + max = Math.max(max, data[i].size(this.resolveDataElementOptions(i)) / 2); + } + return max > 0 && max; + } + getLabelAndValue(index) { + const meta = this._cachedMeta; + const {xScale, yScale} = meta; + const parsed = this.getParsed(index); + const x = xScale.getLabelForValue(parsed.x); + const y = yScale.getLabelForValue(parsed.y); + const r = parsed._custom; + return { + label: meta.label, + value: '(' + x + ', ' + y + (r ? ', ' + r : '') + ')' + }; + } + update(mode) { + const points = this._cachedMeta.data; + this.updateElements(points, 0, points.length, mode); + } + updateElements(points, start, count, mode) { + const reset = mode === 'reset'; + const {iScale, vScale} = this._cachedMeta; + const firstOpts = this.resolveDataElementOptions(start, mode); + const sharedOptions = this.getSharedOptions(firstOpts); + const includeOptions = this.includeOptions(mode, sharedOptions); + const iAxis = iScale.axis; + const vAxis = vScale.axis; + for (let i = start; i < start + count; i++) { + const point = points[i]; + const parsed = !reset && this.getParsed(i); + const properties = {}; + const iPixel = properties[iAxis] = reset ? iScale.getPixelForDecimal(0.5) : iScale.getPixelForValue(parsed[iAxis]); + const vPixel = properties[vAxis] = reset ? vScale.getBasePixel() : vScale.getPixelForValue(parsed[vAxis]); + properties.skip = isNaN(iPixel) || isNaN(vPixel); + if (includeOptions) { + properties.options = this.resolveDataElementOptions(i, point.active ? 'active' : mode); + if (reset) { + properties.options.radius = 0; + } + } + this.updateElement(point, i, properties, mode); + } + this.updateSharedOptions(sharedOptions, mode, firstOpts); + } + resolveDataElementOptions(index, mode) { + const parsed = this.getParsed(index); + let values = super.resolveDataElementOptions(index, mode); + if (values.$shared) { + values = Object.assign({}, values, {$shared: false}); + } + const radius = values.radius; + if (mode !== 'active') { + values.radius = 0; + } + values.radius += valueOrDefault(parsed && parsed._custom, radius); + return values; + } +} +BubbleController.id = 'bubble'; +BubbleController.defaults = { + datasetElementType: false, + dataElementType: 'point', + animations: { + numbers: { + type: 'number', + properties: ['x', 'y', 'borderWidth', 'radius'] + } + } +}; +BubbleController.overrides = { + scales: { + x: { + type: 'linear' + }, + y: { + type: 'linear' + } + }, + plugins: { + tooltip: { + callbacks: { + title() { + return ''; + } + } + } + } +}; + +function getRatioAndOffset(rotation, circumference, cutout) { + let ratioX = 1; + let ratioY = 1; + let offsetX = 0; + let offsetY = 0; + if (circumference < TAU) { + const startAngle = rotation; + const endAngle = startAngle + circumference; + const startX = Math.cos(startAngle); + const startY = Math.sin(startAngle); + const endX = Math.cos(endAngle); + const endY = Math.sin(endAngle); + const calcMax = (angle, a, b) => _angleBetween(angle, startAngle, endAngle, true) ? 1 : Math.max(a, a * cutout, b, b * cutout); + const calcMin = (angle, a, b) => _angleBetween(angle, startAngle, endAngle, true) ? -1 : Math.min(a, a * cutout, b, b * cutout); + const maxX = calcMax(0, startX, endX); + const maxY = calcMax(HALF_PI, startY, endY); + const minX = calcMin(PI, startX, endX); + const minY = calcMin(PI + HALF_PI, startY, endY); + ratioX = (maxX - minX) / 2; + ratioY = (maxY - minY) / 2; + offsetX = -(maxX + minX) / 2; + offsetY = -(maxY + minY) / 2; + } + return {ratioX, ratioY, offsetX, offsetY}; +} +class DoughnutController extends DatasetController { + constructor(chart, datasetIndex) { + super(chart, datasetIndex); + this.enableOptionSharing = true; + this.innerRadius = undefined; + this.outerRadius = undefined; + this.offsetX = undefined; + this.offsetY = undefined; + } + linkScales() {} + parse(start, count) { + const data = this.getDataset().data; + const meta = this._cachedMeta; + if (this._parsing === false) { + meta._parsed = data; + } else { + let getter = (i) => +data[i]; + if (isObject(data[start])) { + const {key = 'value'} = this._parsing; + getter = (i) => +resolveObjectKey(data[i], key); + } + let i, ilen; + for (i = start, ilen = start + count; i < ilen; ++i) { + meta._parsed[i] = getter(i); + } + } + } + _getRotation() { + return toRadians(this.options.rotation - 90); + } + _getCircumference() { + return toRadians(this.options.circumference); + } + _getRotationExtents() { + let min = TAU; + let max = -TAU; + for (let i = 0; i < this.chart.data.datasets.length; ++i) { + if (this.chart.isDatasetVisible(i)) { + const controller = this.chart.getDatasetMeta(i).controller; + const rotation = controller._getRotation(); + const circumference = controller._getCircumference(); + min = Math.min(min, rotation); + max = Math.max(max, rotation + circumference); + } + } + return { + rotation: min, + circumference: max - min, + }; + } + update(mode) { + const chart = this.chart; + const {chartArea} = chart; + const meta = this._cachedMeta; + const arcs = meta.data; + const spacing = this.getMaxBorderWidth() + this.getMaxOffset(arcs) + this.options.spacing; + const maxSize = Math.max((Math.min(chartArea.width, chartArea.height) - spacing) / 2, 0); + const cutout = Math.min(toPercentage(this.options.cutout, maxSize), 1); + const chartWeight = this._getRingWeight(this.index); + const {circumference, rotation} = this._getRotationExtents(); + const {ratioX, ratioY, offsetX, offsetY} = getRatioAndOffset(rotation, circumference, cutout); + const maxWidth = (chartArea.width - spacing) / ratioX; + const maxHeight = (chartArea.height - spacing) / ratioY; + const maxRadius = Math.max(Math.min(maxWidth, maxHeight) / 2, 0); + const outerRadius = toDimension(this.options.radius, maxRadius); + const innerRadius = Math.max(outerRadius * cutout, 0); + const radiusLength = (outerRadius - innerRadius) / this._getVisibleDatasetWeightTotal(); + this.offsetX = offsetX * outerRadius; + this.offsetY = offsetY * outerRadius; + meta.total = this.calculateTotal(); + this.outerRadius = outerRadius - radiusLength * this._getRingWeightOffset(this.index); + this.innerRadius = Math.max(this.outerRadius - radiusLength * chartWeight, 0); + this.updateElements(arcs, 0, arcs.length, mode); + } + _circumference(i, reset) { + const opts = this.options; + const meta = this._cachedMeta; + const circumference = this._getCircumference(); + if ((reset && opts.animation.animateRotate) || !this.chart.getDataVisibility(i) || meta._parsed[i] === null || meta.data[i].hidden) { + return 0; + } + return this.calculateCircumference(meta._parsed[i] * circumference / TAU); + } + updateElements(arcs, start, count, mode) { + const reset = mode === 'reset'; + const chart = this.chart; + const chartArea = chart.chartArea; + const opts = chart.options; + const animationOpts = opts.animation; + const centerX = (chartArea.left + chartArea.right) / 2; + const centerY = (chartArea.top + chartArea.bottom) / 2; + const animateScale = reset && animationOpts.animateScale; + const innerRadius = animateScale ? 0 : this.innerRadius; + const outerRadius = animateScale ? 0 : this.outerRadius; + const firstOpts = this.resolveDataElementOptions(start, mode); + const sharedOptions = this.getSharedOptions(firstOpts); + const includeOptions = this.includeOptions(mode, sharedOptions); + let startAngle = this._getRotation(); + let i; + for (i = 0; i < start; ++i) { + startAngle += this._circumference(i, reset); + } + for (i = start; i < start + count; ++i) { + const circumference = this._circumference(i, reset); + const arc = arcs[i]; + const properties = { + x: centerX + this.offsetX, + y: centerY + this.offsetY, + startAngle, + endAngle: startAngle + circumference, + circumference, + outerRadius, + innerRadius + }; + if (includeOptions) { + properties.options = sharedOptions || this.resolveDataElementOptions(i, arc.active ? 'active' : mode); + } + startAngle += circumference; + this.updateElement(arc, i, properties, mode); + } + this.updateSharedOptions(sharedOptions, mode, firstOpts); + } + calculateTotal() { + const meta = this._cachedMeta; + const metaData = meta.data; + let total = 0; + let i; + for (i = 0; i < metaData.length; i++) { + const value = meta._parsed[i]; + if (value !== null && !isNaN(value) && this.chart.getDataVisibility(i) && !metaData[i].hidden) { + total += Math.abs(value); + } + } + return total; + } + calculateCircumference(value) { + const total = this._cachedMeta.total; + if (total > 0 && !isNaN(value)) { + return TAU * (Math.abs(value) / total); + } + return 0; + } + getLabelAndValue(index) { + const meta = this._cachedMeta; + const chart = this.chart; + const labels = chart.data.labels || []; + const value = formatNumber(meta._parsed[index], chart.options.locale); + return { + label: labels[index] || '', + value, + }; + } + getMaxBorderWidth(arcs) { + let max = 0; + const chart = this.chart; + let i, ilen, meta, controller, options; + if (!arcs) { + for (i = 0, ilen = chart.data.datasets.length; i < ilen; ++i) { + if (chart.isDatasetVisible(i)) { + meta = chart.getDatasetMeta(i); + arcs = meta.data; + controller = meta.controller; + break; + } + } + } + if (!arcs) { + return 0; + } + for (i = 0, ilen = arcs.length; i < ilen; ++i) { + options = controller.resolveDataElementOptions(i); + if (options.borderAlign !== 'inner') { + max = Math.max(max, options.borderWidth || 0, options.hoverBorderWidth || 0); + } + } + return max; + } + getMaxOffset(arcs) { + let max = 0; + for (let i = 0, ilen = arcs.length; i < ilen; ++i) { + const options = this.resolveDataElementOptions(i); + max = Math.max(max, options.offset || 0, options.hoverOffset || 0); + } + return max; + } + _getRingWeightOffset(datasetIndex) { + let ringWeightOffset = 0; + for (let i = 0; i < datasetIndex; ++i) { + if (this.chart.isDatasetVisible(i)) { + ringWeightOffset += this._getRingWeight(i); + } + } + return ringWeightOffset; + } + _getRingWeight(datasetIndex) { + return Math.max(valueOrDefault(this.chart.data.datasets[datasetIndex].weight, 1), 0); + } + _getVisibleDatasetWeightTotal() { + return this._getRingWeightOffset(this.chart.data.datasets.length) || 1; + } +} +DoughnutController.id = 'doughnut'; +DoughnutController.defaults = { + datasetElementType: false, + dataElementType: 'arc', + animation: { + animateRotate: true, + animateScale: false + }, + animations: { + numbers: { + type: 'number', + properties: ['circumference', 'endAngle', 'innerRadius', 'outerRadius', 'startAngle', 'x', 'y', 'offset', 'borderWidth', 'spacing'] + }, + }, + cutout: '50%', + rotation: 0, + circumference: 360, + radius: '100%', + spacing: 0, + indexAxis: 'r', +}; +DoughnutController.descriptors = { + _scriptable: (name) => name !== 'spacing', + _indexable: (name) => name !== 'spacing', +}; +DoughnutController.overrides = { + aspectRatio: 1, + plugins: { + legend: { + labels: { + generateLabels(chart) { + const data = chart.data; + if (data.labels.length && data.datasets.length) { + const {labels: {pointStyle}} = chart.legend.options; + return data.labels.map((label, i) => { + const meta = chart.getDatasetMeta(0); + const style = meta.controller.getStyle(i); + return { + text: label, + fillStyle: style.backgroundColor, + strokeStyle: style.borderColor, + lineWidth: style.borderWidth, + pointStyle: pointStyle, + hidden: !chart.getDataVisibility(i), + index: i + }; + }); + } + return []; + } + }, + onClick(e, legendItem, legend) { + legend.chart.toggleDataVisibility(legendItem.index); + legend.chart.update(); + } + }, + tooltip: { + callbacks: { + title() { + return ''; + }, + label(tooltipItem) { + let dataLabel = tooltipItem.label; + const value = ': ' + tooltipItem.formattedValue; + if (isArray(dataLabel)) { + dataLabel = dataLabel.slice(); + dataLabel[0] += value; + } else { + dataLabel += value; + } + return dataLabel; + } + } + } + } +}; + +class LineController extends DatasetController { + initialize() { + this.enableOptionSharing = true; + super.initialize(); + } + update(mode) { + const meta = this._cachedMeta; + const {dataset: line, data: points = [], _dataset} = meta; + const animationsDisabled = this.chart._animationsDisabled; + let {start, count} = getStartAndCountOfVisiblePoints(meta, points, animationsDisabled); + this._drawStart = start; + this._drawCount = count; + if (scaleRangesChanged(meta)) { + start = 0; + count = points.length; + } + line._chart = this.chart; + line._datasetIndex = this.index; + line._decimated = !!_dataset._decimated; + line.points = points; + const options = this.resolveDatasetElementOptions(mode); + if (!this.options.showLine) { + options.borderWidth = 0; + } + options.segment = this.options.segment; + this.updateElement(line, undefined, { + animated: !animationsDisabled, + options + }, mode); + this.updateElements(points, start, count, mode); + } + updateElements(points, start, count, mode) { + const reset = mode === 'reset'; + const {iScale, vScale, _stacked, _dataset} = this._cachedMeta; + const firstOpts = this.resolveDataElementOptions(start, mode); + const sharedOptions = this.getSharedOptions(firstOpts); + const includeOptions = this.includeOptions(mode, sharedOptions); + const iAxis = iScale.axis; + const vAxis = vScale.axis; + const {spanGaps, segment} = this.options; + const maxGapLength = isNumber(spanGaps) ? spanGaps : Number.POSITIVE_INFINITY; + const directUpdate = this.chart._animationsDisabled || reset || mode === 'none'; + let prevParsed = start > 0 && this.getParsed(start - 1); + for (let i = start; i < start + count; ++i) { + const point = points[i]; + const parsed = this.getParsed(i); + const properties = directUpdate ? point : {}; + const nullData = isNullOrUndef(parsed[vAxis]); + const iPixel = properties[iAxis] = iScale.getPixelForValue(parsed[iAxis], i); + const vPixel = properties[vAxis] = reset || nullData ? vScale.getBasePixel() : vScale.getPixelForValue(_stacked ? this.applyStack(vScale, parsed, _stacked) : parsed[vAxis], i); + properties.skip = isNaN(iPixel) || isNaN(vPixel) || nullData; + properties.stop = i > 0 && (parsed[iAxis] - prevParsed[iAxis]) > maxGapLength; + if (segment) { + properties.parsed = parsed; + properties.raw = _dataset.data[i]; + } + if (includeOptions) { + properties.options = sharedOptions || this.resolveDataElementOptions(i, point.active ? 'active' : mode); + } + if (!directUpdate) { + this.updateElement(point, i, properties, mode); + } + prevParsed = parsed; + } + this.updateSharedOptions(sharedOptions, mode, firstOpts); + } + getMaxOverflow() { + const meta = this._cachedMeta; + const dataset = meta.dataset; + const border = dataset.options && dataset.options.borderWidth || 0; + const data = meta.data || []; + if (!data.length) { + return border; + } + const firstPoint = data[0].size(this.resolveDataElementOptions(0)); + const lastPoint = data[data.length - 1].size(this.resolveDataElementOptions(data.length - 1)); + return Math.max(border, firstPoint, lastPoint) / 2; + } + draw() { + const meta = this._cachedMeta; + meta.dataset.updateControlPoints(this.chart.chartArea, meta.iScale.axis); + super.draw(); + } +} +LineController.id = 'line'; +LineController.defaults = { + datasetElementType: 'line', + dataElementType: 'point', + showLine: true, + spanGaps: false, +}; +LineController.overrides = { + scales: { + _index_: { + type: 'category', + }, + _value_: { + type: 'linear', + }, + } +}; +function getStartAndCountOfVisiblePoints(meta, points, animationsDisabled) { + const pointCount = points.length; + let start = 0; + let count = pointCount; + if (meta._sorted) { + const {iScale, _parsed} = meta; + const axis = iScale.axis; + const {min, max, minDefined, maxDefined} = iScale.getUserBounds(); + if (minDefined) { + start = _limitValue(Math.min( + _lookupByKey(_parsed, iScale.axis, min).lo, + animationsDisabled ? pointCount : _lookupByKey(points, axis, iScale.getPixelForValue(min)).lo), + 0, pointCount - 1); + } + if (maxDefined) { + count = _limitValue(Math.max( + _lookupByKey(_parsed, iScale.axis, max).hi + 1, + animationsDisabled ? 0 : _lookupByKey(points, axis, iScale.getPixelForValue(max)).hi + 1), + start, pointCount) - start; + } else { + count = pointCount - start; + } + } + return {start, count}; +} +function scaleRangesChanged(meta) { + const {xScale, yScale, _scaleRanges} = meta; + const newRanges = { + xmin: xScale.min, + xmax: xScale.max, + ymin: yScale.min, + ymax: yScale.max + }; + if (!_scaleRanges) { + meta._scaleRanges = newRanges; + return true; + } + const changed = _scaleRanges.xmin !== xScale.min + || _scaleRanges.xmax !== xScale.max + || _scaleRanges.ymin !== yScale.min + || _scaleRanges.ymax !== yScale.max; + Object.assign(_scaleRanges, newRanges); + return changed; +} + +class PolarAreaController extends DatasetController { + constructor(chart, datasetIndex) { + super(chart, datasetIndex); + this.innerRadius = undefined; + this.outerRadius = undefined; + } + getLabelAndValue(index) { + const meta = this._cachedMeta; + const chart = this.chart; + const labels = chart.data.labels || []; + const value = formatNumber(meta._parsed[index].r, chart.options.locale); + return { + label: labels[index] || '', + value, + }; + } + update(mode) { + const arcs = this._cachedMeta.data; + this._updateRadius(); + this.updateElements(arcs, 0, arcs.length, mode); + } + _updateRadius() { + const chart = this.chart; + const chartArea = chart.chartArea; + const opts = chart.options; + const minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top); + const outerRadius = Math.max(minSize / 2, 0); + const innerRadius = Math.max(opts.cutoutPercentage ? (outerRadius / 100) * (opts.cutoutPercentage) : 1, 0); + const radiusLength = (outerRadius - innerRadius) / chart.getVisibleDatasetCount(); + this.outerRadius = outerRadius - (radiusLength * this.index); + this.innerRadius = this.outerRadius - radiusLength; + } + updateElements(arcs, start, count, mode) { + const reset = mode === 'reset'; + const chart = this.chart; + const dataset = this.getDataset(); + const opts = chart.options; + const animationOpts = opts.animation; + const scale = this._cachedMeta.rScale; + const centerX = scale.xCenter; + const centerY = scale.yCenter; + const datasetStartAngle = scale.getIndexAngle(0) - 0.5 * PI; + let angle = datasetStartAngle; + let i; + const defaultAngle = 360 / this.countVisibleElements(); + for (i = 0; i < start; ++i) { + angle += this._computeAngle(i, mode, defaultAngle); + } + for (i = start; i < start + count; i++) { + const arc = arcs[i]; + let startAngle = angle; + let endAngle = angle + this._computeAngle(i, mode, defaultAngle); + let outerRadius = chart.getDataVisibility(i) ? scale.getDistanceFromCenterForValue(dataset.data[i]) : 0; + angle = endAngle; + if (reset) { + if (animationOpts.animateScale) { + outerRadius = 0; + } + if (animationOpts.animateRotate) { + startAngle = endAngle = datasetStartAngle; + } + } + const properties = { + x: centerX, + y: centerY, + innerRadius: 0, + outerRadius, + startAngle, + endAngle, + options: this.resolveDataElementOptions(i, arc.active ? 'active' : mode) + }; + this.updateElement(arc, i, properties, mode); + } + } + countVisibleElements() { + const dataset = this.getDataset(); + const meta = this._cachedMeta; + let count = 0; + meta.data.forEach((element, index) => { + if (!isNaN(dataset.data[index]) && this.chart.getDataVisibility(index)) { + count++; + } + }); + return count; + } + _computeAngle(index, mode, defaultAngle) { + return this.chart.getDataVisibility(index) + ? toRadians(this.resolveDataElementOptions(index, mode).angle || defaultAngle) + : 0; + } +} +PolarAreaController.id = 'polarArea'; +PolarAreaController.defaults = { + dataElementType: 'arc', + animation: { + animateRotate: true, + animateScale: true + }, + animations: { + numbers: { + type: 'number', + properties: ['x', 'y', 'startAngle', 'endAngle', 'innerRadius', 'outerRadius'] + }, + }, + indexAxis: 'r', + startAngle: 0, +}; +PolarAreaController.overrides = { + aspectRatio: 1, + plugins: { + legend: { + labels: { + generateLabels(chart) { + const data = chart.data; + if (data.labels.length && data.datasets.length) { + const {labels: {pointStyle}} = chart.legend.options; + return data.labels.map((label, i) => { + const meta = chart.getDatasetMeta(0); + const style = meta.controller.getStyle(i); + return { + text: label, + fillStyle: style.backgroundColor, + strokeStyle: style.borderColor, + lineWidth: style.borderWidth, + pointStyle: pointStyle, + hidden: !chart.getDataVisibility(i), + index: i + }; + }); + } + return []; + } + }, + onClick(e, legendItem, legend) { + legend.chart.toggleDataVisibility(legendItem.index); + legend.chart.update(); + } + }, + tooltip: { + callbacks: { + title() { + return ''; + }, + label(context) { + return context.chart.data.labels[context.dataIndex] + ': ' + context.formattedValue; + } + } + } + }, + scales: { + r: { + type: 'radialLinear', + angleLines: { + display: false + }, + beginAtZero: true, + grid: { + circular: true + }, + pointLabels: { + display: false + }, + startAngle: 0 + } + } +}; + +class PieController extends DoughnutController { +} +PieController.id = 'pie'; +PieController.defaults = { + cutout: 0, + rotation: 0, + circumference: 360, + radius: '100%' +}; + +class RadarController extends DatasetController { + getLabelAndValue(index) { + const vScale = this._cachedMeta.vScale; + const parsed = this.getParsed(index); + return { + label: vScale.getLabels()[index], + value: '' + vScale.getLabelForValue(parsed[vScale.axis]) + }; + } + update(mode) { + const meta = this._cachedMeta; + const line = meta.dataset; + const points = meta.data || []; + const labels = meta.iScale.getLabels(); + line.points = points; + if (mode !== 'resize') { + const options = this.resolveDatasetElementOptions(mode); + if (!this.options.showLine) { + options.borderWidth = 0; + } + const properties = { + _loop: true, + _fullLoop: labels.length === points.length, + options + }; + this.updateElement(line, undefined, properties, mode); + } + this.updateElements(points, 0, points.length, mode); + } + updateElements(points, start, count, mode) { + const dataset = this.getDataset(); + const scale = this._cachedMeta.rScale; + const reset = mode === 'reset'; + for (let i = start; i < start + count; i++) { + const point = points[i]; + const options = this.resolveDataElementOptions(i, point.active ? 'active' : mode); + const pointPosition = scale.getPointPositionForValue(i, dataset.data[i]); + const x = reset ? scale.xCenter : pointPosition.x; + const y = reset ? scale.yCenter : pointPosition.y; + const properties = { + x, + y, + angle: pointPosition.angle, + skip: isNaN(x) || isNaN(y), + options + }; + this.updateElement(point, i, properties, mode); + } + } +} +RadarController.id = 'radar'; +RadarController.defaults = { + datasetElementType: 'line', + dataElementType: 'point', + indexAxis: 'r', + showLine: true, + elements: { + line: { + fill: 'start' + } + }, +}; +RadarController.overrides = { + aspectRatio: 1, + scales: { + r: { + type: 'radialLinear', + } + } +}; + +class ScatterController extends LineController { +} +ScatterController.id = 'scatter'; +ScatterController.defaults = { + showLine: false, + fill: false +}; +ScatterController.overrides = { + interaction: { + mode: 'point' + }, + plugins: { + tooltip: { + callbacks: { + title() { + return ''; + }, + label(item) { + return '(' + item.label + ', ' + item.formattedValue + ')'; + } + } + } + }, + scales: { + x: { + type: 'linear' + }, + y: { + type: 'linear' + } + } +}; + +var controllers = /*#__PURE__*/Object.freeze({ +__proto__: null, +BarController: BarController, +BubbleController: BubbleController, +DoughnutController: DoughnutController, +LineController: LineController, +PolarAreaController: PolarAreaController, +PieController: PieController, +RadarController: RadarController, +ScatterController: ScatterController +}); + +function clipArc(ctx, element, endAngle) { + const {startAngle, pixelMargin, x, y, outerRadius, innerRadius} = element; + let angleMargin = pixelMargin / outerRadius; + ctx.beginPath(); + ctx.arc(x, y, outerRadius, startAngle - angleMargin, endAngle + angleMargin); + if (innerRadius > pixelMargin) { + angleMargin = pixelMargin / innerRadius; + ctx.arc(x, y, innerRadius, endAngle + angleMargin, startAngle - angleMargin, true); + } else { + ctx.arc(x, y, pixelMargin, endAngle + HALF_PI, startAngle - HALF_PI); + } + ctx.closePath(); + ctx.clip(); +} +function toRadiusCorners(value) { + return _readValueToProps(value, ['outerStart', 'outerEnd', 'innerStart', 'innerEnd']); +} +function parseBorderRadius$1(arc, innerRadius, outerRadius, angleDelta) { + const o = toRadiusCorners(arc.options.borderRadius); + const halfThickness = (outerRadius - innerRadius) / 2; + const innerLimit = Math.min(halfThickness, angleDelta * innerRadius / 2); + const computeOuterLimit = (val) => { + const outerArcLimit = (outerRadius - Math.min(halfThickness, val)) * angleDelta / 2; + return _limitValue(val, 0, Math.min(halfThickness, outerArcLimit)); + }; + return { + outerStart: computeOuterLimit(o.outerStart), + outerEnd: computeOuterLimit(o.outerEnd), + innerStart: _limitValue(o.innerStart, 0, innerLimit), + innerEnd: _limitValue(o.innerEnd, 0, innerLimit), + }; +} +function rThetaToXY(r, theta, x, y) { + return { + x: x + r * Math.cos(theta), + y: y + r * Math.sin(theta), + }; +} +function pathArc(ctx, element, offset, spacing, end) { + const {x, y, startAngle: start, pixelMargin, innerRadius: innerR} = element; + const outerRadius = Math.max(element.outerRadius + spacing + offset - pixelMargin, 0); + const innerRadius = innerR > 0 ? innerR + spacing + offset + pixelMargin : 0; + let spacingOffset = 0; + const alpha = end - start; + if (spacing) { + const noSpacingInnerRadius = innerR > 0 ? innerR - spacing : 0; + const noSpacingOuterRadius = outerRadius > 0 ? outerRadius - spacing : 0; + const avNogSpacingRadius = (noSpacingInnerRadius + noSpacingOuterRadius) / 2; + const adjustedAngle = avNogSpacingRadius !== 0 ? (alpha * avNogSpacingRadius) / (avNogSpacingRadius + spacing) : alpha; + spacingOffset = (alpha - adjustedAngle) / 2; + } + const beta = Math.max(0.001, alpha * outerRadius - offset / PI) / outerRadius; + const angleOffset = (alpha - beta) / 2; + const startAngle = start + angleOffset + spacingOffset; + const endAngle = end - angleOffset - spacingOffset; + const {outerStart, outerEnd, innerStart, innerEnd} = parseBorderRadius$1(element, innerRadius, outerRadius, endAngle - startAngle); + const outerStartAdjustedRadius = outerRadius - outerStart; + const outerEndAdjustedRadius = outerRadius - outerEnd; + const outerStartAdjustedAngle = startAngle + outerStart / outerStartAdjustedRadius; + const outerEndAdjustedAngle = endAngle - outerEnd / outerEndAdjustedRadius; + const innerStartAdjustedRadius = innerRadius + innerStart; + const innerEndAdjustedRadius = innerRadius + innerEnd; + const innerStartAdjustedAngle = startAngle + innerStart / innerStartAdjustedRadius; + const innerEndAdjustedAngle = endAngle - innerEnd / innerEndAdjustedRadius; + ctx.beginPath(); + ctx.arc(x, y, outerRadius, outerStartAdjustedAngle, outerEndAdjustedAngle); + if (outerEnd > 0) { + const pCenter = rThetaToXY(outerEndAdjustedRadius, outerEndAdjustedAngle, x, y); + ctx.arc(pCenter.x, pCenter.y, outerEnd, outerEndAdjustedAngle, endAngle + HALF_PI); + } + const p4 = rThetaToXY(innerEndAdjustedRadius, endAngle, x, y); + ctx.lineTo(p4.x, p4.y); + if (innerEnd > 0) { + const pCenter = rThetaToXY(innerEndAdjustedRadius, innerEndAdjustedAngle, x, y); + ctx.arc(pCenter.x, pCenter.y, innerEnd, endAngle + HALF_PI, innerEndAdjustedAngle + Math.PI); + } + ctx.arc(x, y, innerRadius, endAngle - (innerEnd / innerRadius), startAngle + (innerStart / innerRadius), true); + if (innerStart > 0) { + const pCenter = rThetaToXY(innerStartAdjustedRadius, innerStartAdjustedAngle, x, y); + ctx.arc(pCenter.x, pCenter.y, innerStart, innerStartAdjustedAngle + Math.PI, startAngle - HALF_PI); + } + const p8 = rThetaToXY(outerStartAdjustedRadius, startAngle, x, y); + ctx.lineTo(p8.x, p8.y); + if (outerStart > 0) { + const pCenter = rThetaToXY(outerStartAdjustedRadius, outerStartAdjustedAngle, x, y); + ctx.arc(pCenter.x, pCenter.y, outerStart, startAngle - HALF_PI, outerStartAdjustedAngle); + } + ctx.closePath(); +} +function drawArc(ctx, element, offset, spacing) { + const {fullCircles, startAngle, circumference} = element; + let endAngle = element.endAngle; + if (fullCircles) { + pathArc(ctx, element, offset, spacing, startAngle + TAU); + for (let i = 0; i < fullCircles; ++i) { + ctx.fill(); + } + if (!isNaN(circumference)) { + endAngle = startAngle + circumference % TAU; + if (circumference % TAU === 0) { + endAngle += TAU; + } + } + } + pathArc(ctx, element, offset, spacing, endAngle); + ctx.fill(); + return endAngle; +} +function drawFullCircleBorders(ctx, element, inner) { + const {x, y, startAngle, pixelMargin, fullCircles} = element; + const outerRadius = Math.max(element.outerRadius - pixelMargin, 0); + const innerRadius = element.innerRadius + pixelMargin; + let i; + if (inner) { + clipArc(ctx, element, startAngle + TAU); + } + ctx.beginPath(); + ctx.arc(x, y, innerRadius, startAngle + TAU, startAngle, true); + for (i = 0; i < fullCircles; ++i) { + ctx.stroke(); + } + ctx.beginPath(); + ctx.arc(x, y, outerRadius, startAngle, startAngle + TAU); + for (i = 0; i < fullCircles; ++i) { + ctx.stroke(); + } +} +function drawBorder(ctx, element, offset, spacing, endAngle) { + const {options} = element; + const {borderWidth, borderJoinStyle} = options; + const inner = options.borderAlign === 'inner'; + if (!borderWidth) { + return; + } + if (inner) { + ctx.lineWidth = borderWidth * 2; + ctx.lineJoin = borderJoinStyle || 'round'; + } else { + ctx.lineWidth = borderWidth; + ctx.lineJoin = borderJoinStyle || 'bevel'; + } + if (element.fullCircles) { + drawFullCircleBorders(ctx, element, inner); + } + if (inner) { + clipArc(ctx, element, endAngle); + } + pathArc(ctx, element, offset, spacing, endAngle); + ctx.stroke(); +} +class ArcElement extends Element { + constructor(cfg) { + super(); + this.options = undefined; + this.circumference = undefined; + this.startAngle = undefined; + this.endAngle = undefined; + this.innerRadius = undefined; + this.outerRadius = undefined; + this.pixelMargin = 0; + this.fullCircles = 0; + if (cfg) { + Object.assign(this, cfg); + } + } + inRange(chartX, chartY, useFinalPosition) { + const point = this.getProps(['x', 'y'], useFinalPosition); + const {angle, distance} = getAngleFromPoint(point, {x: chartX, y: chartY}); + const {startAngle, endAngle, innerRadius, outerRadius, circumference} = this.getProps([ + 'startAngle', + 'endAngle', + 'innerRadius', + 'outerRadius', + 'circumference' + ], useFinalPosition); + const rAdjust = this.options.spacing / 2; + const _circumference = valueOrDefault(circumference, endAngle - startAngle); + const betweenAngles = _circumference >= TAU || _angleBetween(angle, startAngle, endAngle); + const withinRadius = _isBetween(distance, innerRadius + rAdjust, outerRadius + rAdjust); + return (betweenAngles && withinRadius); + } + getCenterPoint(useFinalPosition) { + const {x, y, startAngle, endAngle, innerRadius, outerRadius} = this.getProps([ + 'x', + 'y', + 'startAngle', + 'endAngle', + 'innerRadius', + 'outerRadius', + 'circumference', + ], useFinalPosition); + const {offset, spacing} = this.options; + const halfAngle = (startAngle + endAngle) / 2; + const halfRadius = (innerRadius + outerRadius + spacing + offset) / 2; + return { + x: x + Math.cos(halfAngle) * halfRadius, + y: y + Math.sin(halfAngle) * halfRadius + }; + } + tooltipPosition(useFinalPosition) { + return this.getCenterPoint(useFinalPosition); + } + draw(ctx) { + const {options, circumference} = this; + const offset = (options.offset || 0) / 2; + const spacing = (options.spacing || 0) / 2; + this.pixelMargin = (options.borderAlign === 'inner') ? 0.33 : 0; + this.fullCircles = circumference > TAU ? Math.floor(circumference / TAU) : 0; + if (circumference === 0 || this.innerRadius < 0 || this.outerRadius < 0) { + return; + } + ctx.save(); + let radiusOffset = 0; + if (offset) { + radiusOffset = offset / 2; + const halfAngle = (this.startAngle + this.endAngle) / 2; + ctx.translate(Math.cos(halfAngle) * radiusOffset, Math.sin(halfAngle) * radiusOffset); + if (this.circumference >= PI) { + radiusOffset = offset; + } + } + ctx.fillStyle = options.backgroundColor; + ctx.strokeStyle = options.borderColor; + const endAngle = drawArc(ctx, this, radiusOffset, spacing); + drawBorder(ctx, this, radiusOffset, spacing, endAngle); + ctx.restore(); + } +} +ArcElement.id = 'arc'; +ArcElement.defaults = { + borderAlign: 'center', + borderColor: '#fff', + borderJoinStyle: undefined, + borderRadius: 0, + borderWidth: 2, + offset: 0, + spacing: 0, + angle: undefined, +}; +ArcElement.defaultRoutes = { + backgroundColor: 'backgroundColor' +}; + +function setStyle(ctx, options, style = options) { + ctx.lineCap = valueOrDefault(style.borderCapStyle, options.borderCapStyle); + ctx.setLineDash(valueOrDefault(style.borderDash, options.borderDash)); + ctx.lineDashOffset = valueOrDefault(style.borderDashOffset, options.borderDashOffset); + ctx.lineJoin = valueOrDefault(style.borderJoinStyle, options.borderJoinStyle); + ctx.lineWidth = valueOrDefault(style.borderWidth, options.borderWidth); + ctx.strokeStyle = valueOrDefault(style.borderColor, options.borderColor); +} +function lineTo(ctx, previous, target) { + ctx.lineTo(target.x, target.y); +} +function getLineMethod(options) { + if (options.stepped) { + return _steppedLineTo; + } + if (options.tension || options.cubicInterpolationMode === 'monotone') { + return _bezierCurveTo; + } + return lineTo; +} +function pathVars(points, segment, params = {}) { + const count = points.length; + const {start: paramsStart = 0, end: paramsEnd = count - 1} = params; + const {start: segmentStart, end: segmentEnd} = segment; + const start = Math.max(paramsStart, segmentStart); + const end = Math.min(paramsEnd, segmentEnd); + const outside = paramsStart < segmentStart && paramsEnd < segmentStart || paramsStart > segmentEnd && paramsEnd > segmentEnd; + return { + count, + start, + loop: segment.loop, + ilen: end < start && !outside ? count + end - start : end - start + }; +} +function pathSegment(ctx, line, segment, params) { + const {points, options} = line; + const {count, start, loop, ilen} = pathVars(points, segment, params); + const lineMethod = getLineMethod(options); + let {move = true, reverse} = params || {}; + let i, point, prev; + for (i = 0; i <= ilen; ++i) { + point = points[(start + (reverse ? ilen - i : i)) % count]; + if (point.skip) { + continue; + } else if (move) { + ctx.moveTo(point.x, point.y); + move = false; + } else { + lineMethod(ctx, prev, point, reverse, options.stepped); + } + prev = point; + } + if (loop) { + point = points[(start + (reverse ? ilen : 0)) % count]; + lineMethod(ctx, prev, point, reverse, options.stepped); + } + return !!loop; +} +function fastPathSegment(ctx, line, segment, params) { + const points = line.points; + const {count, start, ilen} = pathVars(points, segment, params); + const {move = true, reverse} = params || {}; + let avgX = 0; + let countX = 0; + let i, point, prevX, minY, maxY, lastY; + const pointIndex = (index) => (start + (reverse ? ilen - index : index)) % count; + const drawX = () => { + if (minY !== maxY) { + ctx.lineTo(avgX, maxY); + ctx.lineTo(avgX, minY); + ctx.lineTo(avgX, lastY); + } + }; + if (move) { + point = points[pointIndex(0)]; + ctx.moveTo(point.x, point.y); + } + for (i = 0; i <= ilen; ++i) { + point = points[pointIndex(i)]; + if (point.skip) { + continue; + } + const x = point.x; + const y = point.y; + const truncX = x | 0; + if (truncX === prevX) { + if (y < minY) { + minY = y; + } else if (y > maxY) { + maxY = y; + } + avgX = (countX * avgX + x) / ++countX; + } else { + drawX(); + ctx.lineTo(x, y); + prevX = truncX; + countX = 0; + minY = maxY = y; + } + lastY = y; + } + drawX(); +} +function _getSegmentMethod(line) { + const opts = line.options; + const borderDash = opts.borderDash && opts.borderDash.length; + const useFastPath = !line._decimated && !line._loop && !opts.tension && opts.cubicInterpolationMode !== 'monotone' && !opts.stepped && !borderDash; + return useFastPath ? fastPathSegment : pathSegment; +} +function _getInterpolationMethod(options) { + if (options.stepped) { + return _steppedInterpolation; + } + if (options.tension || options.cubicInterpolationMode === 'monotone') { + return _bezierInterpolation; + } + return _pointInLine; +} +function strokePathWithCache(ctx, line, start, count) { + let path = line._path; + if (!path) { + path = line._path = new Path2D(); + if (line.path(path, start, count)) { + path.closePath(); + } + } + setStyle(ctx, line.options); + ctx.stroke(path); +} +function strokePathDirect(ctx, line, start, count) { + const {segments, options} = line; + const segmentMethod = _getSegmentMethod(line); + for (const segment of segments) { + setStyle(ctx, options, segment.style); + ctx.beginPath(); + if (segmentMethod(ctx, line, segment, {start, end: start + count - 1})) { + ctx.closePath(); + } + ctx.stroke(); + } +} +const usePath2D = typeof Path2D === 'function'; +function draw(ctx, line, start, count) { + if (usePath2D && !line.options.segment) { + strokePathWithCache(ctx, line, start, count); + } else { + strokePathDirect(ctx, line, start, count); + } +} +class LineElement extends Element { + constructor(cfg) { + super(); + this.animated = true; + this.options = undefined; + this._chart = undefined; + this._loop = undefined; + this._fullLoop = undefined; + this._path = undefined; + this._points = undefined; + this._segments = undefined; + this._decimated = false; + this._pointsUpdated = false; + this._datasetIndex = undefined; + if (cfg) { + Object.assign(this, cfg); + } + } + updateControlPoints(chartArea, indexAxis) { + const options = this.options; + if ((options.tension || options.cubicInterpolationMode === 'monotone') && !options.stepped && !this._pointsUpdated) { + const loop = options.spanGaps ? this._loop : this._fullLoop; + _updateBezierControlPoints(this._points, options, chartArea, loop, indexAxis); + this._pointsUpdated = true; + } + } + set points(points) { + this._points = points; + delete this._segments; + delete this._path; + this._pointsUpdated = false; + } + get points() { + return this._points; + } + get segments() { + return this._segments || (this._segments = _computeSegments(this, this.options.segment)); + } + first() { + const segments = this.segments; + const points = this.points; + return segments.length && points[segments[0].start]; + } + last() { + const segments = this.segments; + const points = this.points; + const count = segments.length; + return count && points[segments[count - 1].end]; + } + interpolate(point, property) { + const options = this.options; + const value = point[property]; + const points = this.points; + const segments = _boundSegments(this, {property, start: value, end: value}); + if (!segments.length) { + return; + } + const result = []; + const _interpolate = _getInterpolationMethod(options); + let i, ilen; + for (i = 0, ilen = segments.length; i < ilen; ++i) { + const {start, end} = segments[i]; + const p1 = points[start]; + const p2 = points[end]; + if (p1 === p2) { + result.push(p1); + continue; + } + const t = Math.abs((value - p1[property]) / (p2[property] - p1[property])); + const interpolated = _interpolate(p1, p2, t, options.stepped); + interpolated[property] = point[property]; + result.push(interpolated); + } + return result.length === 1 ? result[0] : result; + } + pathSegment(ctx, segment, params) { + const segmentMethod = _getSegmentMethod(this); + return segmentMethod(ctx, this, segment, params); + } + path(ctx, start, count) { + const segments = this.segments; + const segmentMethod = _getSegmentMethod(this); + let loop = this._loop; + start = start || 0; + count = count || (this.points.length - start); + for (const segment of segments) { + loop &= segmentMethod(ctx, this, segment, {start, end: start + count - 1}); + } + return !!loop; + } + draw(ctx, chartArea, start, count) { + const options = this.options || {}; + const points = this.points || []; + if (points.length && options.borderWidth) { + ctx.save(); + draw(ctx, this, start, count); + ctx.restore(); + } + if (this.animated) { + this._pointsUpdated = false; + this._path = undefined; + } + } +} +LineElement.id = 'line'; +LineElement.defaults = { + borderCapStyle: 'butt', + borderDash: [], + borderDashOffset: 0, + borderJoinStyle: 'miter', + borderWidth: 3, + capBezierPoints: true, + cubicInterpolationMode: 'default', + fill: false, + spanGaps: false, + stepped: false, + tension: 0, +}; +LineElement.defaultRoutes = { + backgroundColor: 'backgroundColor', + borderColor: 'borderColor' +}; +LineElement.descriptors = { + _scriptable: true, + _indexable: (name) => name !== 'borderDash' && name !== 'fill', +}; + +function inRange$1(el, pos, axis, useFinalPosition) { + const options = el.options; + const {[axis]: value} = el.getProps([axis], useFinalPosition); + return (Math.abs(pos - value) < options.radius + options.hitRadius); +} +class PointElement extends Element { + constructor(cfg) { + super(); + this.options = undefined; + this.parsed = undefined; + this.skip = undefined; + this.stop = undefined; + if (cfg) { + Object.assign(this, cfg); + } + } + inRange(mouseX, mouseY, useFinalPosition) { + const options = this.options; + const {x, y} = this.getProps(['x', 'y'], useFinalPosition); + return ((Math.pow(mouseX - x, 2) + Math.pow(mouseY - y, 2)) < Math.pow(options.hitRadius + options.radius, 2)); + } + inXRange(mouseX, useFinalPosition) { + return inRange$1(this, mouseX, 'x', useFinalPosition); + } + inYRange(mouseY, useFinalPosition) { + return inRange$1(this, mouseY, 'y', useFinalPosition); + } + getCenterPoint(useFinalPosition) { + const {x, y} = this.getProps(['x', 'y'], useFinalPosition); + return {x, y}; + } + size(options) { + options = options || this.options || {}; + let radius = options.radius || 0; + radius = Math.max(radius, radius && options.hoverRadius || 0); + const borderWidth = radius && options.borderWidth || 0; + return (radius + borderWidth) * 2; + } + draw(ctx, area) { + const options = this.options; + if (this.skip || options.radius < 0.1 || !_isPointInArea(this, area, this.size(options) / 2)) { + return; + } + ctx.strokeStyle = options.borderColor; + ctx.lineWidth = options.borderWidth; + ctx.fillStyle = options.backgroundColor; + drawPoint(ctx, options, this.x, this.y); + } + getRange() { + const options = this.options || {}; + return options.radius + options.hitRadius; + } +} +PointElement.id = 'point'; +PointElement.defaults = { + borderWidth: 1, + hitRadius: 1, + hoverBorderWidth: 1, + hoverRadius: 4, + pointStyle: 'circle', + radius: 3, + rotation: 0 +}; +PointElement.defaultRoutes = { + backgroundColor: 'backgroundColor', + borderColor: 'borderColor' +}; + +function getBarBounds(bar, useFinalPosition) { + const {x, y, base, width, height} = bar.getProps(['x', 'y', 'base', 'width', 'height'], useFinalPosition); + let left, right, top, bottom, half; + if (bar.horizontal) { + half = height / 2; + left = Math.min(x, base); + right = Math.max(x, base); + top = y - half; + bottom = y + half; + } else { + half = width / 2; + left = x - half; + right = x + half; + top = Math.min(y, base); + bottom = Math.max(y, base); + } + return {left, top, right, bottom}; +} +function skipOrLimit(skip, value, min, max) { + return skip ? 0 : _limitValue(value, min, max); +} +function parseBorderWidth(bar, maxW, maxH) { + const value = bar.options.borderWidth; + const skip = bar.borderSkipped; + const o = toTRBL(value); + return { + t: skipOrLimit(skip.top, o.top, 0, maxH), + r: skipOrLimit(skip.right, o.right, 0, maxW), + b: skipOrLimit(skip.bottom, o.bottom, 0, maxH), + l: skipOrLimit(skip.left, o.left, 0, maxW) + }; +} +function parseBorderRadius(bar, maxW, maxH) { + const {enableBorderRadius} = bar.getProps(['enableBorderRadius']); + const value = bar.options.borderRadius; + const o = toTRBLCorners(value); + const maxR = Math.min(maxW, maxH); + const skip = bar.borderSkipped; + const enableBorder = enableBorderRadius || isObject(value); + return { + topLeft: skipOrLimit(!enableBorder || skip.top || skip.left, o.topLeft, 0, maxR), + topRight: skipOrLimit(!enableBorder || skip.top || skip.right, o.topRight, 0, maxR), + bottomLeft: skipOrLimit(!enableBorder || skip.bottom || skip.left, o.bottomLeft, 0, maxR), + bottomRight: skipOrLimit(!enableBorder || skip.bottom || skip.right, o.bottomRight, 0, maxR) + }; +} +function boundingRects(bar) { + const bounds = getBarBounds(bar); + const width = bounds.right - bounds.left; + const height = bounds.bottom - bounds.top; + const border = parseBorderWidth(bar, width / 2, height / 2); + const radius = parseBorderRadius(bar, width / 2, height / 2); + return { + outer: { + x: bounds.left, + y: bounds.top, + w: width, + h: height, + radius + }, + inner: { + x: bounds.left + border.l, + y: bounds.top + border.t, + w: width - border.l - border.r, + h: height - border.t - border.b, + radius: { + topLeft: Math.max(0, radius.topLeft - Math.max(border.t, border.l)), + topRight: Math.max(0, radius.topRight - Math.max(border.t, border.r)), + bottomLeft: Math.max(0, radius.bottomLeft - Math.max(border.b, border.l)), + bottomRight: Math.max(0, radius.bottomRight - Math.max(border.b, border.r)), + } + } + }; +} +function inRange(bar, x, y, useFinalPosition) { + const skipX = x === null; + const skipY = y === null; + const skipBoth = skipX && skipY; + const bounds = bar && !skipBoth && getBarBounds(bar, useFinalPosition); + return bounds + && (skipX || _isBetween(x, bounds.left, bounds.right)) + && (skipY || _isBetween(y, bounds.top, bounds.bottom)); +} +function hasRadius(radius) { + return radius.topLeft || radius.topRight || radius.bottomLeft || radius.bottomRight; +} +function addNormalRectPath(ctx, rect) { + ctx.rect(rect.x, rect.y, rect.w, rect.h); +} +function inflateRect(rect, amount, refRect = {}) { + const x = rect.x !== refRect.x ? -amount : 0; + const y = rect.y !== refRect.y ? -amount : 0; + const w = (rect.x + rect.w !== refRect.x + refRect.w ? amount : 0) - x; + const h = (rect.y + rect.h !== refRect.y + refRect.h ? amount : 0) - y; + return { + x: rect.x + x, + y: rect.y + y, + w: rect.w + w, + h: rect.h + h, + radius: rect.radius + }; +} +class BarElement extends Element { + constructor(cfg) { + super(); + this.options = undefined; + this.horizontal = undefined; + this.base = undefined; + this.width = undefined; + this.height = undefined; + this.inflateAmount = undefined; + if (cfg) { + Object.assign(this, cfg); + } + } + draw(ctx) { + const {inflateAmount, options: {borderColor, backgroundColor}} = this; + const {inner, outer} = boundingRects(this); + const addRectPath = hasRadius(outer.radius) ? addRoundedRectPath : addNormalRectPath; + ctx.save(); + if (outer.w !== inner.w || outer.h !== inner.h) { + ctx.beginPath(); + addRectPath(ctx, inflateRect(outer, inflateAmount, inner)); + ctx.clip(); + addRectPath(ctx, inflateRect(inner, -inflateAmount, outer)); + ctx.fillStyle = borderColor; + ctx.fill('evenodd'); + } + ctx.beginPath(); + addRectPath(ctx, inflateRect(inner, inflateAmount)); + ctx.fillStyle = backgroundColor; + ctx.fill(); + ctx.restore(); + } + inRange(mouseX, mouseY, useFinalPosition) { + return inRange(this, mouseX, mouseY, useFinalPosition); + } + inXRange(mouseX, useFinalPosition) { + return inRange(this, mouseX, null, useFinalPosition); + } + inYRange(mouseY, useFinalPosition) { + return inRange(this, null, mouseY, useFinalPosition); + } + getCenterPoint(useFinalPosition) { + const {x, y, base, horizontal} = this.getProps(['x', 'y', 'base', 'horizontal'], useFinalPosition); + return { + x: horizontal ? (x + base) / 2 : x, + y: horizontal ? y : (y + base) / 2 + }; + } + getRange(axis) { + return axis === 'x' ? this.width / 2 : this.height / 2; + } +} +BarElement.id = 'bar'; +BarElement.defaults = { + borderSkipped: 'start', + borderWidth: 0, + borderRadius: 0, + inflateAmount: 'auto', + pointStyle: undefined +}; +BarElement.defaultRoutes = { + backgroundColor: 'backgroundColor', + borderColor: 'borderColor' +}; + +var elements = /*#__PURE__*/Object.freeze({ +__proto__: null, +ArcElement: ArcElement, +LineElement: LineElement, +PointElement: PointElement, +BarElement: BarElement +}); + +function lttbDecimation(data, start, count, availableWidth, options) { + const samples = options.samples || availableWidth; + if (samples >= count) { + return data.slice(start, start + count); + } + const decimated = []; + const bucketWidth = (count - 2) / (samples - 2); + let sampledIndex = 0; + const endIndex = start + count - 1; + let a = start; + let i, maxAreaPoint, maxArea, area, nextA; + decimated[sampledIndex++] = data[a]; + for (i = 0; i < samples - 2; i++) { + let avgX = 0; + let avgY = 0; + let j; + const avgRangeStart = Math.floor((i + 1) * bucketWidth) + 1 + start; + const avgRangeEnd = Math.min(Math.floor((i + 2) * bucketWidth) + 1, count) + start; + const avgRangeLength = avgRangeEnd - avgRangeStart; + for (j = avgRangeStart; j < avgRangeEnd; j++) { + avgX += data[j].x; + avgY += data[j].y; + } + avgX /= avgRangeLength; + avgY /= avgRangeLength; + const rangeOffs = Math.floor(i * bucketWidth) + 1 + start; + const rangeTo = Math.min(Math.floor((i + 1) * bucketWidth) + 1, count) + start; + const {x: pointAx, y: pointAy} = data[a]; + maxArea = area = -1; + for (j = rangeOffs; j < rangeTo; j++) { + area = 0.5 * Math.abs( + (pointAx - avgX) * (data[j].y - pointAy) - + (pointAx - data[j].x) * (avgY - pointAy) + ); + if (area > maxArea) { + maxArea = area; + maxAreaPoint = data[j]; + nextA = j; + } + } + decimated[sampledIndex++] = maxAreaPoint; + a = nextA; + } + decimated[sampledIndex++] = data[endIndex]; + return decimated; +} +function minMaxDecimation(data, start, count, availableWidth) { + let avgX = 0; + let countX = 0; + let i, point, x, y, prevX, minIndex, maxIndex, startIndex, minY, maxY; + const decimated = []; + const endIndex = start + count - 1; + const xMin = data[start].x; + const xMax = data[endIndex].x; + const dx = xMax - xMin; + for (i = start; i < start + count; ++i) { + point = data[i]; + x = (point.x - xMin) / dx * availableWidth; + y = point.y; + const truncX = x | 0; + if (truncX === prevX) { + if (y < minY) { + minY = y; + minIndex = i; + } else if (y > maxY) { + maxY = y; + maxIndex = i; + } + avgX = (countX * avgX + point.x) / ++countX; + } else { + const lastIndex = i - 1; + if (!isNullOrUndef(minIndex) && !isNullOrUndef(maxIndex)) { + const intermediateIndex1 = Math.min(minIndex, maxIndex); + const intermediateIndex2 = Math.max(minIndex, maxIndex); + if (intermediateIndex1 !== startIndex && intermediateIndex1 !== lastIndex) { + decimated.push({ + ...data[intermediateIndex1], + x: avgX, + }); + } + if (intermediateIndex2 !== startIndex && intermediateIndex2 !== lastIndex) { + decimated.push({ + ...data[intermediateIndex2], + x: avgX + }); + } + } + if (i > 0 && lastIndex !== startIndex) { + decimated.push(data[lastIndex]); + } + decimated.push(point); + prevX = truncX; + countX = 0; + minY = maxY = y; + minIndex = maxIndex = startIndex = i; + } + } + return decimated; +} +function cleanDecimatedDataset(dataset) { + if (dataset._decimated) { + const data = dataset._data; + delete dataset._decimated; + delete dataset._data; + Object.defineProperty(dataset, 'data', {value: data}); + } +} +function cleanDecimatedData(chart) { + chart.data.datasets.forEach((dataset) => { + cleanDecimatedDataset(dataset); + }); +} +function getStartAndCountOfVisiblePointsSimplified(meta, points) { + const pointCount = points.length; + let start = 0; + let count; + const {iScale} = meta; + const {min, max, minDefined, maxDefined} = iScale.getUserBounds(); + if (minDefined) { + start = _limitValue(_lookupByKey(points, iScale.axis, min).lo, 0, pointCount - 1); + } + if (maxDefined) { + count = _limitValue(_lookupByKey(points, iScale.axis, max).hi + 1, start, pointCount) - start; + } else { + count = pointCount - start; + } + return {start, count}; +} +var plugin_decimation = { + id: 'decimation', + defaults: { + algorithm: 'min-max', + enabled: false, + }, + beforeElementsUpdate: (chart, args, options) => { + if (!options.enabled) { + cleanDecimatedData(chart); + return; + } + const availableWidth = chart.width; + chart.data.datasets.forEach((dataset, datasetIndex) => { + const {_data, indexAxis} = dataset; + const meta = chart.getDatasetMeta(datasetIndex); + const data = _data || dataset.data; + if (resolve([indexAxis, chart.options.indexAxis]) === 'y') { + return; + } + if (meta.type !== 'line') { + return; + } + const xAxis = chart.scales[meta.xAxisID]; + if (xAxis.type !== 'linear' && xAxis.type !== 'time') { + return; + } + if (chart.options.parsing) { + return; + } + let {start, count} = getStartAndCountOfVisiblePointsSimplified(meta, data); + const threshold = options.threshold || 4 * availableWidth; + if (count <= threshold) { + cleanDecimatedDataset(dataset); + return; + } + if (isNullOrUndef(_data)) { + dataset._data = data; + delete dataset.data; + Object.defineProperty(dataset, 'data', { + configurable: true, + enumerable: true, + get: function() { + return this._decimated; + }, + set: function(d) { + this._data = d; + } + }); + } + let decimated; + switch (options.algorithm) { + case 'lttb': + decimated = lttbDecimation(data, start, count, availableWidth, options); + break; + case 'min-max': + decimated = minMaxDecimation(data, start, count, availableWidth); + break; + default: + throw new Error(`Unsupported decimation algorithm '${options.algorithm}'`); + } + dataset._decimated = decimated; + }); + }, + destroy(chart) { + cleanDecimatedData(chart); + } +}; + +function getLineByIndex(chart, index) { + const meta = chart.getDatasetMeta(index); + const visible = meta && chart.isDatasetVisible(index); + return visible ? meta.dataset : null; +} +function parseFillOption(line) { + const options = line.options; + const fillOption = options.fill; + let fill = valueOrDefault(fillOption && fillOption.target, fillOption); + if (fill === undefined) { + fill = !!options.backgroundColor; + } + if (fill === false || fill === null) { + return false; + } + if (fill === true) { + return 'origin'; + } + return fill; +} +function decodeFill(line, index, count) { + const fill = parseFillOption(line); + if (isObject(fill)) { + return isNaN(fill.value) ? false : fill; + } + let target = parseFloat(fill); + if (isNumberFinite(target) && Math.floor(target) === target) { + if (fill[0] === '-' || fill[0] === '+') { + target = index + target; + } + if (target === index || target < 0 || target >= count) { + return false; + } + return target; + } + return ['origin', 'start', 'end', 'stack', 'shape'].indexOf(fill) >= 0 && fill; +} +function computeLinearBoundary(source) { + const {scale = {}, fill} = source; + let target = null; + let horizontal; + if (fill === 'start') { + target = scale.bottom; + } else if (fill === 'end') { + target = scale.top; + } else if (isObject(fill)) { + target = scale.getPixelForValue(fill.value); + } else if (scale.getBasePixel) { + target = scale.getBasePixel(); + } + if (isNumberFinite(target)) { + horizontal = scale.isHorizontal(); + return { + x: horizontal ? target : null, + y: horizontal ? null : target + }; + } + return null; +} +class simpleArc { + constructor(opts) { + this.x = opts.x; + this.y = opts.y; + this.radius = opts.radius; + } + pathSegment(ctx, bounds, opts) { + const {x, y, radius} = this; + bounds = bounds || {start: 0, end: TAU}; + ctx.arc(x, y, radius, bounds.end, bounds.start, true); + return !opts.bounds; + } + interpolate(point) { + const {x, y, radius} = this; + const angle = point.angle; + return { + x: x + Math.cos(angle) * radius, + y: y + Math.sin(angle) * radius, + angle + }; + } +} +function computeCircularBoundary(source) { + const {scale, fill} = source; + const options = scale.options; + const length = scale.getLabels().length; + const target = []; + const start = options.reverse ? scale.max : scale.min; + const end = options.reverse ? scale.min : scale.max; + let i, center, value; + if (fill === 'start') { + value = start; + } else if (fill === 'end') { + value = end; + } else if (isObject(fill)) { + value = fill.value; + } else { + value = scale.getBaseValue(); + } + if (options.grid.circular) { + center = scale.getPointPositionForValue(0, start); + return new simpleArc({ + x: center.x, + y: center.y, + radius: scale.getDistanceFromCenterForValue(value) + }); + } + for (i = 0; i < length; ++i) { + target.push(scale.getPointPositionForValue(i, value)); + } + return target; +} +function computeBoundary(source) { + const scale = source.scale || {}; + if (scale.getPointPositionForValue) { + return computeCircularBoundary(source); + } + return computeLinearBoundary(source); +} +function findSegmentEnd(start, end, points) { + for (;end > start; end--) { + const point = points[end]; + if (!isNaN(point.x) && !isNaN(point.y)) { + break; + } + } + return end; +} +function pointsFromSegments(boundary, line) { + const {x = null, y = null} = boundary || {}; + const linePoints = line.points; + const points = []; + line.segments.forEach(({start, end}) => { + end = findSegmentEnd(start, end, linePoints); + const first = linePoints[start]; + const last = linePoints[end]; + if (y !== null) { + points.push({x: first.x, y}); + points.push({x: last.x, y}); + } else if (x !== null) { + points.push({x, y: first.y}); + points.push({x, y: last.y}); + } + }); + return points; +} +function buildStackLine(source) { + const {scale, index, line} = source; + const points = []; + const segments = line.segments; + const sourcePoints = line.points; + const linesBelow = getLinesBelow(scale, index); + linesBelow.push(createBoundaryLine({x: null, y: scale.bottom}, line)); + for (let i = 0; i < segments.length; i++) { + const segment = segments[i]; + for (let j = segment.start; j <= segment.end; j++) { + addPointsBelow(points, sourcePoints[j], linesBelow); + } + } + return new LineElement({points, options: {}}); +} +function getLinesBelow(scale, index) { + const below = []; + const metas = scale.getMatchingVisibleMetas('line'); + for (let i = 0; i < metas.length; i++) { + const meta = metas[i]; + if (meta.index === index) { + break; + } + if (!meta.hidden) { + below.unshift(meta.dataset); + } + } + return below; +} +function addPointsBelow(points, sourcePoint, linesBelow) { + const postponed = []; + for (let j = 0; j < linesBelow.length; j++) { + const line = linesBelow[j]; + const {first, last, point} = findPoint(line, sourcePoint, 'x'); + if (!point || (first && last)) { + continue; + } + if (first) { + postponed.unshift(point); + } else { + points.push(point); + if (!last) { + break; + } + } + } + points.push(...postponed); +} +function findPoint(line, sourcePoint, property) { + const point = line.interpolate(sourcePoint, property); + if (!point) { + return {}; + } + const pointValue = point[property]; + const segments = line.segments; + const linePoints = line.points; + let first = false; + let last = false; + for (let i = 0; i < segments.length; i++) { + const segment = segments[i]; + const firstValue = linePoints[segment.start][property]; + const lastValue = linePoints[segment.end][property]; + if (_isBetween(pointValue, firstValue, lastValue)) { + first = pointValue === firstValue; + last = pointValue === lastValue; + break; + } + } + return {first, last, point}; +} +function getTarget(source) { + const {chart, fill, line} = source; + if (isNumberFinite(fill)) { + return getLineByIndex(chart, fill); + } + if (fill === 'stack') { + return buildStackLine(source); + } + if (fill === 'shape') { + return true; + } + const boundary = computeBoundary(source); + if (boundary instanceof simpleArc) { + return boundary; + } + return createBoundaryLine(boundary, line); +} +function createBoundaryLine(boundary, line) { + let points = []; + let _loop = false; + if (isArray(boundary)) { + _loop = true; + points = boundary; + } else { + points = pointsFromSegments(boundary, line); + } + return points.length ? new LineElement({ + points, + options: {tension: 0}, + _loop, + _fullLoop: _loop + }) : null; +} +function resolveTarget(sources, index, propagate) { + const source = sources[index]; + let fill = source.fill; + const visited = [index]; + let target; + if (!propagate) { + return fill; + } + while (fill !== false && visited.indexOf(fill) === -1) { + if (!isNumberFinite(fill)) { + return fill; + } + target = sources[fill]; + if (!target) { + return false; + } + if (target.visible) { + return fill; + } + visited.push(fill); + fill = target.fill; + } + return false; +} +function _clip(ctx, target, clipY) { + const {segments, points} = target; + let first = true; + let lineLoop = false; + ctx.beginPath(); + for (const segment of segments) { + const {start, end} = segment; + const firstPoint = points[start]; + const lastPoint = points[findSegmentEnd(start, end, points)]; + if (first) { + ctx.moveTo(firstPoint.x, firstPoint.y); + first = false; + } else { + ctx.lineTo(firstPoint.x, clipY); + ctx.lineTo(firstPoint.x, firstPoint.y); + } + lineLoop = !!target.pathSegment(ctx, segment, {move: lineLoop}); + if (lineLoop) { + ctx.closePath(); + } else { + ctx.lineTo(lastPoint.x, clipY); + } + } + ctx.lineTo(target.first().x, clipY); + ctx.closePath(); + ctx.clip(); +} +function getBounds(property, first, last, loop) { + if (loop) { + return; + } + let start = first[property]; + let end = last[property]; + if (property === 'angle') { + start = _normalizeAngle(start); + end = _normalizeAngle(end); + } + return {property, start, end}; +} +function _getEdge(a, b, prop, fn) { + if (a && b) { + return fn(a[prop], b[prop]); + } + return a ? a[prop] : b ? b[prop] : 0; +} +function _segments(line, target, property) { + const segments = line.segments; + const points = line.points; + const tpoints = target.points; + const parts = []; + for (const segment of segments) { + let {start, end} = segment; + end = findSegmentEnd(start, end, points); + const bounds = getBounds(property, points[start], points[end], segment.loop); + if (!target.segments) { + parts.push({ + source: segment, + target: bounds, + start: points[start], + end: points[end] + }); + continue; + } + const targetSegments = _boundSegments(target, bounds); + for (const tgt of targetSegments) { + const subBounds = getBounds(property, tpoints[tgt.start], tpoints[tgt.end], tgt.loop); + const fillSources = _boundSegment(segment, points, subBounds); + for (const fillSource of fillSources) { + parts.push({ + source: fillSource, + target: tgt, + start: { + [property]: _getEdge(bounds, subBounds, 'start', Math.max) + }, + end: { + [property]: _getEdge(bounds, subBounds, 'end', Math.min) + } + }); + } + } + } + return parts; +} +function clipBounds(ctx, scale, bounds) { + const {top, bottom} = scale.chart.chartArea; + const {property, start, end} = bounds || {}; + if (property === 'x') { + ctx.beginPath(); + ctx.rect(start, top, end - start, bottom - top); + ctx.clip(); + } +} +function interpolatedLineTo(ctx, target, point, property) { + const interpolatedPoint = target.interpolate(point, property); + if (interpolatedPoint) { + ctx.lineTo(interpolatedPoint.x, interpolatedPoint.y); + } +} +function _fill(ctx, cfg) { + const {line, target, property, color, scale} = cfg; + const segments = _segments(line, target, property); + for (const {source: src, target: tgt, start, end} of segments) { + const {style: {backgroundColor = color} = {}} = src; + const notShape = target !== true; + ctx.save(); + ctx.fillStyle = backgroundColor; + clipBounds(ctx, scale, notShape && getBounds(property, start, end)); + ctx.beginPath(); + const lineLoop = !!line.pathSegment(ctx, src); + let loop; + if (notShape) { + if (lineLoop) { + ctx.closePath(); + } else { + interpolatedLineTo(ctx, target, end, property); + } + const targetLoop = !!target.pathSegment(ctx, tgt, {move: lineLoop, reverse: true}); + loop = lineLoop && targetLoop; + if (!loop) { + interpolatedLineTo(ctx, target, start, property); + } + } + ctx.closePath(); + ctx.fill(loop ? 'evenodd' : 'nonzero'); + ctx.restore(); + } +} +function doFill(ctx, cfg) { + const {line, target, above, below, area, scale} = cfg; + const property = line._loop ? 'angle' : cfg.axis; + ctx.save(); + if (property === 'x' && below !== above) { + _clip(ctx, target, area.top); + _fill(ctx, {line, target, color: above, scale, property}); + ctx.restore(); + ctx.save(); + _clip(ctx, target, area.bottom); + } + _fill(ctx, {line, target, color: below, scale, property}); + ctx.restore(); +} +function drawfill(ctx, source, area) { + const target = getTarget(source); + const {line, scale, axis} = source; + const lineOpts = line.options; + const fillOption = lineOpts.fill; + const color = lineOpts.backgroundColor; + const {above = color, below = color} = fillOption || {}; + if (target && line.points.length) { + clipArea(ctx, area); + doFill(ctx, {line, target, above, below, area, scale, axis}); + unclipArea(ctx); + } +} +var plugin_filler = { + id: 'filler', + afterDatasetsUpdate(chart, _args, options) { + const count = (chart.data.datasets || []).length; + const sources = []; + let meta, i, line, source; + for (i = 0; i < count; ++i) { + meta = chart.getDatasetMeta(i); + line = meta.dataset; + source = null; + if (line && line.options && line instanceof LineElement) { + source = { + visible: chart.isDatasetVisible(i), + index: i, + fill: decodeFill(line, i, count), + chart, + axis: meta.controller.options.indexAxis, + scale: meta.vScale, + line, + }; + } + meta.$filler = source; + sources.push(source); + } + for (i = 0; i < count; ++i) { + source = sources[i]; + if (!source || source.fill === false) { + continue; + } + source.fill = resolveTarget(sources, i, options.propagate); + } + }, + beforeDraw(chart, _args, options) { + const draw = options.drawTime === 'beforeDraw'; + const metasets = chart.getSortedVisibleDatasetMetas(); + const area = chart.chartArea; + for (let i = metasets.length - 1; i >= 0; --i) { + const source = metasets[i].$filler; + if (!source) { + continue; + } + source.line.updateControlPoints(area, source.axis); + if (draw) { + drawfill(chart.ctx, source, area); + } + } + }, + beforeDatasetsDraw(chart, _args, options) { + if (options.drawTime !== 'beforeDatasetsDraw') { + return; + } + const metasets = chart.getSortedVisibleDatasetMetas(); + for (let i = metasets.length - 1; i >= 0; --i) { + const source = metasets[i].$filler; + if (source) { + drawfill(chart.ctx, source, chart.chartArea); + } + } + }, + beforeDatasetDraw(chart, args, options) { + const source = args.meta.$filler; + if (!source || source.fill === false || options.drawTime !== 'beforeDatasetDraw') { + return; + } + drawfill(chart.ctx, source, chart.chartArea); + }, + defaults: { + propagate: true, + drawTime: 'beforeDatasetDraw' + } +}; + +const getBoxSize = (labelOpts, fontSize) => { + let {boxHeight = fontSize, boxWidth = fontSize} = labelOpts; + if (labelOpts.usePointStyle) { + boxHeight = Math.min(boxHeight, fontSize); + boxWidth = Math.min(boxWidth, fontSize); + } + return { + boxWidth, + boxHeight, + itemHeight: Math.max(fontSize, boxHeight) + }; +}; +const itemsEqual = (a, b) => a !== null && b !== null && a.datasetIndex === b.datasetIndex && a.index === b.index; +class Legend extends Element { + constructor(config) { + super(); + this._added = false; + this.legendHitBoxes = []; + this._hoveredItem = null; + this.doughnutMode = false; + this.chart = config.chart; + this.options = config.options; + this.ctx = config.ctx; + this.legendItems = undefined; + this.columnSizes = undefined; + this.lineWidths = undefined; + this.maxHeight = undefined; + this.maxWidth = undefined; + this.top = undefined; + this.bottom = undefined; + this.left = undefined; + this.right = undefined; + this.height = undefined; + this.width = undefined; + this._margins = undefined; + this.position = undefined; + this.weight = undefined; + this.fullSize = undefined; + } + update(maxWidth, maxHeight, margins) { + this.maxWidth = maxWidth; + this.maxHeight = maxHeight; + this._margins = margins; + this.setDimensions(); + this.buildLabels(); + this.fit(); + } + setDimensions() { + if (this.isHorizontal()) { + this.width = this.maxWidth; + this.left = this._margins.left; + this.right = this.width; + } else { + this.height = this.maxHeight; + this.top = this._margins.top; + this.bottom = this.height; + } + } + buildLabels() { + const labelOpts = this.options.labels || {}; + let legendItems = callback(labelOpts.generateLabels, [this.chart], this) || []; + if (labelOpts.filter) { + legendItems = legendItems.filter((item) => labelOpts.filter(item, this.chart.data)); + } + if (labelOpts.sort) { + legendItems = legendItems.sort((a, b) => labelOpts.sort(a, b, this.chart.data)); + } + if (this.options.reverse) { + legendItems.reverse(); + } + this.legendItems = legendItems; + } + fit() { + const {options, ctx} = this; + if (!options.display) { + this.width = this.height = 0; + return; + } + const labelOpts = options.labels; + const labelFont = toFont(labelOpts.font); + const fontSize = labelFont.size; + const titleHeight = this._computeTitleHeight(); + const {boxWidth, itemHeight} = getBoxSize(labelOpts, fontSize); + let width, height; + ctx.font = labelFont.string; + if (this.isHorizontal()) { + width = this.maxWidth; + height = this._fitRows(titleHeight, fontSize, boxWidth, itemHeight) + 10; + } else { + height = this.maxHeight; + width = this._fitCols(titleHeight, fontSize, boxWidth, itemHeight) + 10; + } + this.width = Math.min(width, options.maxWidth || this.maxWidth); + this.height = Math.min(height, options.maxHeight || this.maxHeight); + } + _fitRows(titleHeight, fontSize, boxWidth, itemHeight) { + const {ctx, maxWidth, options: {labels: {padding}}} = this; + const hitboxes = this.legendHitBoxes = []; + const lineWidths = this.lineWidths = [0]; + const lineHeight = itemHeight + padding; + let totalHeight = titleHeight; + ctx.textAlign = 'left'; + ctx.textBaseline = 'middle'; + let row = -1; + let top = -lineHeight; + this.legendItems.forEach((legendItem, i) => { + const itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width; + if (i === 0 || lineWidths[lineWidths.length - 1] + itemWidth + 2 * padding > maxWidth) { + totalHeight += lineHeight; + lineWidths[lineWidths.length - (i > 0 ? 0 : 1)] = 0; + top += lineHeight; + row++; + } + hitboxes[i] = {left: 0, top, row, width: itemWidth, height: itemHeight}; + lineWidths[lineWidths.length - 1] += itemWidth + padding; + }); + return totalHeight; + } + _fitCols(titleHeight, fontSize, boxWidth, itemHeight) { + const {ctx, maxHeight, options: {labels: {padding}}} = this; + const hitboxes = this.legendHitBoxes = []; + const columnSizes = this.columnSizes = []; + const heightLimit = maxHeight - titleHeight; + let totalWidth = padding; + let currentColWidth = 0; + let currentColHeight = 0; + let left = 0; + let col = 0; + this.legendItems.forEach((legendItem, i) => { + const itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width; + if (i > 0 && currentColHeight + itemHeight + 2 * padding > heightLimit) { + totalWidth += currentColWidth + padding; + columnSizes.push({width: currentColWidth, height: currentColHeight}); + left += currentColWidth + padding; + col++; + currentColWidth = currentColHeight = 0; + } + hitboxes[i] = {left, top: currentColHeight, col, width: itemWidth, height: itemHeight}; + currentColWidth = Math.max(currentColWidth, itemWidth); + currentColHeight += itemHeight + padding; + }); + totalWidth += currentColWidth; + columnSizes.push({width: currentColWidth, height: currentColHeight}); + return totalWidth; + } + adjustHitBoxes() { + if (!this.options.display) { + return; + } + const titleHeight = this._computeTitleHeight(); + const {legendHitBoxes: hitboxes, options: {align, labels: {padding}, rtl}} = this; + const rtlHelper = getRtlAdapter(rtl, this.left, this.width); + if (this.isHorizontal()) { + let row = 0; + let left = _alignStartEnd(align, this.left + padding, this.right - this.lineWidths[row]); + for (const hitbox of hitboxes) { + if (row !== hitbox.row) { + row = hitbox.row; + left = _alignStartEnd(align, this.left + padding, this.right - this.lineWidths[row]); + } + hitbox.top += this.top + titleHeight + padding; + hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(left), hitbox.width); + left += hitbox.width + padding; + } + } else { + let col = 0; + let top = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height); + for (const hitbox of hitboxes) { + if (hitbox.col !== col) { + col = hitbox.col; + top = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - this.columnSizes[col].height); + } + hitbox.top = top; + hitbox.left += this.left + padding; + hitbox.left = rtlHelper.leftForLtr(rtlHelper.x(hitbox.left), hitbox.width); + top += hitbox.height + padding; + } + } + } + isHorizontal() { + return this.options.position === 'top' || this.options.position === 'bottom'; + } + draw() { + if (this.options.display) { + const ctx = this.ctx; + clipArea(ctx, this); + this._draw(); + unclipArea(ctx); + } + } + _draw() { + const {options: opts, columnSizes, lineWidths, ctx} = this; + const {align, labels: labelOpts} = opts; + const defaultColor = defaults.color; + const rtlHelper = getRtlAdapter(opts.rtl, this.left, this.width); + const labelFont = toFont(labelOpts.font); + const {color: fontColor, padding} = labelOpts; + const fontSize = labelFont.size; + const halfFontSize = fontSize / 2; + let cursor; + this.drawTitle(); + ctx.textAlign = rtlHelper.textAlign('left'); + ctx.textBaseline = 'middle'; + ctx.lineWidth = 0.5; + ctx.font = labelFont.string; + const {boxWidth, boxHeight, itemHeight} = getBoxSize(labelOpts, fontSize); + const drawLegendBox = function(x, y, legendItem) { + if (isNaN(boxWidth) || boxWidth <= 0 || isNaN(boxHeight) || boxHeight < 0) { + return; + } + ctx.save(); + const lineWidth = valueOrDefault(legendItem.lineWidth, 1); + ctx.fillStyle = valueOrDefault(legendItem.fillStyle, defaultColor); + ctx.lineCap = valueOrDefault(legendItem.lineCap, 'butt'); + ctx.lineDashOffset = valueOrDefault(legendItem.lineDashOffset, 0); + ctx.lineJoin = valueOrDefault(legendItem.lineJoin, 'miter'); + ctx.lineWidth = lineWidth; + ctx.strokeStyle = valueOrDefault(legendItem.strokeStyle, defaultColor); + ctx.setLineDash(valueOrDefault(legendItem.lineDash, [])); + if (labelOpts.usePointStyle) { + const drawOptions = { + radius: boxWidth * Math.SQRT2 / 2, + pointStyle: legendItem.pointStyle, + rotation: legendItem.rotation, + borderWidth: lineWidth + }; + const centerX = rtlHelper.xPlus(x, boxWidth / 2); + const centerY = y + halfFontSize; + drawPoint(ctx, drawOptions, centerX, centerY); + } else { + const yBoxTop = y + Math.max((fontSize - boxHeight) / 2, 0); + const xBoxLeft = rtlHelper.leftForLtr(x, boxWidth); + const borderRadius = toTRBLCorners(legendItem.borderRadius); + ctx.beginPath(); + if (Object.values(borderRadius).some(v => v !== 0)) { + addRoundedRectPath(ctx, { + x: xBoxLeft, + y: yBoxTop, + w: boxWidth, + h: boxHeight, + radius: borderRadius, + }); + } else { + ctx.rect(xBoxLeft, yBoxTop, boxWidth, boxHeight); + } + ctx.fill(); + if (lineWidth !== 0) { + ctx.stroke(); + } + } + ctx.restore(); + }; + const fillText = function(x, y, legendItem) { + renderText(ctx, legendItem.text, x, y + (itemHeight / 2), labelFont, { + strikethrough: legendItem.hidden, + textAlign: rtlHelper.textAlign(legendItem.textAlign) + }); + }; + const isHorizontal = this.isHorizontal(); + const titleHeight = this._computeTitleHeight(); + if (isHorizontal) { + cursor = { + x: _alignStartEnd(align, this.left + padding, this.right - lineWidths[0]), + y: this.top + padding + titleHeight, + line: 0 + }; + } else { + cursor = { + x: this.left + padding, + y: _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - columnSizes[0].height), + line: 0 + }; + } + overrideTextDirection(this.ctx, opts.textDirection); + const lineHeight = itemHeight + padding; + this.legendItems.forEach((legendItem, i) => { + ctx.strokeStyle = legendItem.fontColor || fontColor; + ctx.fillStyle = legendItem.fontColor || fontColor; + const textWidth = ctx.measureText(legendItem.text).width; + const textAlign = rtlHelper.textAlign(legendItem.textAlign || (legendItem.textAlign = labelOpts.textAlign)); + const width = boxWidth + halfFontSize + textWidth; + let x = cursor.x; + let y = cursor.y; + rtlHelper.setWidth(this.width); + if (isHorizontal) { + if (i > 0 && x + width + padding > this.right) { + y = cursor.y += lineHeight; + cursor.line++; + x = cursor.x = _alignStartEnd(align, this.left + padding, this.right - lineWidths[cursor.line]); + } + } else if (i > 0 && y + lineHeight > this.bottom) { + x = cursor.x = x + columnSizes[cursor.line].width + padding; + cursor.line++; + y = cursor.y = _alignStartEnd(align, this.top + titleHeight + padding, this.bottom - columnSizes[cursor.line].height); + } + const realX = rtlHelper.x(x); + drawLegendBox(realX, y, legendItem); + x = _textX(textAlign, x + boxWidth + halfFontSize, isHorizontal ? x + width : this.right, opts.rtl); + fillText(rtlHelper.x(x), y, legendItem); + if (isHorizontal) { + cursor.x += width + padding; + } else { + cursor.y += lineHeight; + } + }); + restoreTextDirection(this.ctx, opts.textDirection); + } + drawTitle() { + const opts = this.options; + const titleOpts = opts.title; + const titleFont = toFont(titleOpts.font); + const titlePadding = toPadding(titleOpts.padding); + if (!titleOpts.display) { + return; + } + const rtlHelper = getRtlAdapter(opts.rtl, this.left, this.width); + const ctx = this.ctx; + const position = titleOpts.position; + const halfFontSize = titleFont.size / 2; + const topPaddingPlusHalfFontSize = titlePadding.top + halfFontSize; + let y; + let left = this.left; + let maxWidth = this.width; + if (this.isHorizontal()) { + maxWidth = Math.max(...this.lineWidths); + y = this.top + topPaddingPlusHalfFontSize; + left = _alignStartEnd(opts.align, left, this.right - maxWidth); + } else { + const maxHeight = this.columnSizes.reduce((acc, size) => Math.max(acc, size.height), 0); + y = topPaddingPlusHalfFontSize + _alignStartEnd(opts.align, this.top, this.bottom - maxHeight - opts.labels.padding - this._computeTitleHeight()); + } + const x = _alignStartEnd(position, left, left + maxWidth); + ctx.textAlign = rtlHelper.textAlign(_toLeftRightCenter(position)); + ctx.textBaseline = 'middle'; + ctx.strokeStyle = titleOpts.color; + ctx.fillStyle = titleOpts.color; + ctx.font = titleFont.string; + renderText(ctx, titleOpts.text, x, y, titleFont); + } + _computeTitleHeight() { + const titleOpts = this.options.title; + const titleFont = toFont(titleOpts.font); + const titlePadding = toPadding(titleOpts.padding); + return titleOpts.display ? titleFont.lineHeight + titlePadding.height : 0; + } + _getLegendItemAt(x, y) { + let i, hitBox, lh; + if (_isBetween(x, this.left, this.right) + && _isBetween(y, this.top, this.bottom)) { + lh = this.legendHitBoxes; + for (i = 0; i < lh.length; ++i) { + hitBox = lh[i]; + if (_isBetween(x, hitBox.left, hitBox.left + hitBox.width) + && _isBetween(y, hitBox.top, hitBox.top + hitBox.height)) { + return this.legendItems[i]; + } + } + } + return null; + } + handleEvent(e) { + const opts = this.options; + if (!isListened(e.type, opts)) { + return; + } + const hoveredItem = this._getLegendItemAt(e.x, e.y); + if (e.type === 'mousemove') { + const previous = this._hoveredItem; + const sameItem = itemsEqual(previous, hoveredItem); + if (previous && !sameItem) { + callback(opts.onLeave, [e, previous, this], this); + } + this._hoveredItem = hoveredItem; + if (hoveredItem && !sameItem) { + callback(opts.onHover, [e, hoveredItem, this], this); + } + } else if (hoveredItem) { + callback(opts.onClick, [e, hoveredItem, this], this); + } + } +} +function isListened(type, opts) { + if (type === 'mousemove' && (opts.onHover || opts.onLeave)) { + return true; + } + if (opts.onClick && (type === 'click' || type === 'mouseup')) { + return true; + } + return false; +} +var plugin_legend = { + id: 'legend', + _element: Legend, + start(chart, _args, options) { + const legend = chart.legend = new Legend({ctx: chart.ctx, options, chart}); + layouts.configure(chart, legend, options); + layouts.addBox(chart, legend); + }, + stop(chart) { + layouts.removeBox(chart, chart.legend); + delete chart.legend; + }, + beforeUpdate(chart, _args, options) { + const legend = chart.legend; + layouts.configure(chart, legend, options); + legend.options = options; + }, + afterUpdate(chart) { + const legend = chart.legend; + legend.buildLabels(); + legend.adjustHitBoxes(); + }, + afterEvent(chart, args) { + if (!args.replay) { + chart.legend.handleEvent(args.event); + } + }, + defaults: { + display: true, + position: 'top', + align: 'center', + fullSize: true, + reverse: false, + weight: 1000, + onClick(e, legendItem, legend) { + const index = legendItem.datasetIndex; + const ci = legend.chart; + if (ci.isDatasetVisible(index)) { + ci.hide(index); + legendItem.hidden = true; + } else { + ci.show(index); + legendItem.hidden = false; + } + }, + onHover: null, + onLeave: null, + labels: { + color: (ctx) => ctx.chart.options.color, + boxWidth: 40, + padding: 10, + generateLabels(chart) { + const datasets = chart.data.datasets; + const {labels: {usePointStyle, pointStyle, textAlign, color}} = chart.legend.options; + return chart._getSortedDatasetMetas().map((meta) => { + const style = meta.controller.getStyle(usePointStyle ? 0 : undefined); + const borderWidth = toPadding(style.borderWidth); + return { + text: datasets[meta.index].label, + fillStyle: style.backgroundColor, + fontColor: color, + hidden: !meta.visible, + lineCap: style.borderCapStyle, + lineDash: style.borderDash, + lineDashOffset: style.borderDashOffset, + lineJoin: style.borderJoinStyle, + lineWidth: (borderWidth.width + borderWidth.height) / 4, + strokeStyle: style.borderColor, + pointStyle: pointStyle || style.pointStyle, + rotation: style.rotation, + textAlign: textAlign || style.textAlign, + borderRadius: 0, + datasetIndex: meta.index + }; + }, this); + } + }, + title: { + color: (ctx) => ctx.chart.options.color, + display: false, + position: 'center', + text: '', + } + }, + descriptors: { + _scriptable: (name) => !name.startsWith('on'), + labels: { + _scriptable: (name) => !['generateLabels', 'filter', 'sort'].includes(name), + } + }, +}; + +class Title extends Element { + constructor(config) { + super(); + this.chart = config.chart; + this.options = config.options; + this.ctx = config.ctx; + this._padding = undefined; + this.top = undefined; + this.bottom = undefined; + this.left = undefined; + this.right = undefined; + this.width = undefined; + this.height = undefined; + this.position = undefined; + this.weight = undefined; + this.fullSize = undefined; + } + update(maxWidth, maxHeight) { + const opts = this.options; + this.left = 0; + this.top = 0; + if (!opts.display) { + this.width = this.height = this.right = this.bottom = 0; + return; + } + this.width = this.right = maxWidth; + this.height = this.bottom = maxHeight; + const lineCount = isArray(opts.text) ? opts.text.length : 1; + this._padding = toPadding(opts.padding); + const textSize = lineCount * toFont(opts.font).lineHeight + this._padding.height; + if (this.isHorizontal()) { + this.height = textSize; + } else { + this.width = textSize; + } + } + isHorizontal() { + const pos = this.options.position; + return pos === 'top' || pos === 'bottom'; + } + _drawArgs(offset) { + const {top, left, bottom, right, options} = this; + const align = options.align; + let rotation = 0; + let maxWidth, titleX, titleY; + if (this.isHorizontal()) { + titleX = _alignStartEnd(align, left, right); + titleY = top + offset; + maxWidth = right - left; + } else { + if (options.position === 'left') { + titleX = left + offset; + titleY = _alignStartEnd(align, bottom, top); + rotation = PI * -0.5; + } else { + titleX = right - offset; + titleY = _alignStartEnd(align, top, bottom); + rotation = PI * 0.5; + } + maxWidth = bottom - top; + } + return {titleX, titleY, maxWidth, rotation}; + } + draw() { + const ctx = this.ctx; + const opts = this.options; + if (!opts.display) { + return; + } + const fontOpts = toFont(opts.font); + const lineHeight = fontOpts.lineHeight; + const offset = lineHeight / 2 + this._padding.top; + const {titleX, titleY, maxWidth, rotation} = this._drawArgs(offset); + renderText(ctx, opts.text, 0, 0, fontOpts, { + color: opts.color, + maxWidth, + rotation, + textAlign: _toLeftRightCenter(opts.align), + textBaseline: 'middle', + translation: [titleX, titleY], + }); + } +} +function createTitle(chart, titleOpts) { + const title = new Title({ + ctx: chart.ctx, + options: titleOpts, + chart + }); + layouts.configure(chart, title, titleOpts); + layouts.addBox(chart, title); + chart.titleBlock = title; +} +var plugin_title = { + id: 'title', + _element: Title, + start(chart, _args, options) { + createTitle(chart, options); + }, + stop(chart) { + const titleBlock = chart.titleBlock; + layouts.removeBox(chart, titleBlock); + delete chart.titleBlock; + }, + beforeUpdate(chart, _args, options) { + const title = chart.titleBlock; + layouts.configure(chart, title, options); + title.options = options; + }, + defaults: { + align: 'center', + display: false, + font: { + weight: 'bold', + }, + fullSize: true, + padding: 10, + position: 'top', + text: '', + weight: 2000 + }, + defaultRoutes: { + color: 'color' + }, + descriptors: { + _scriptable: true, + _indexable: false, + }, +}; + +const map = new WeakMap(); +var plugin_subtitle = { + id: 'subtitle', + start(chart, _args, options) { + const title = new Title({ + ctx: chart.ctx, + options, + chart + }); + layouts.configure(chart, title, options); + layouts.addBox(chart, title); + map.set(chart, title); + }, + stop(chart) { + layouts.removeBox(chart, map.get(chart)); + map.delete(chart); + }, + beforeUpdate(chart, _args, options) { + const title = map.get(chart); + layouts.configure(chart, title, options); + title.options = options; + }, + defaults: { + align: 'center', + display: false, + font: { + weight: 'normal', + }, + fullSize: true, + padding: 0, + position: 'top', + text: '', + weight: 1500 + }, + defaultRoutes: { + color: 'color' + }, + descriptors: { + _scriptable: true, + _indexable: false, + }, +}; + +const positioners = { + average(items) { + if (!items.length) { + return false; + } + let i, len; + let x = 0; + let y = 0; + let count = 0; + for (i = 0, len = items.length; i < len; ++i) { + const el = items[i].element; + if (el && el.hasValue()) { + const pos = el.tooltipPosition(); + x += pos.x; + y += pos.y; + ++count; + } + } + return { + x: x / count, + y: y / count + }; + }, + nearest(items, eventPosition) { + if (!items.length) { + return false; + } + let x = eventPosition.x; + let y = eventPosition.y; + let minDistance = Number.POSITIVE_INFINITY; + let i, len, nearestElement; + for (i = 0, len = items.length; i < len; ++i) { + const el = items[i].element; + if (el && el.hasValue()) { + const center = el.getCenterPoint(); + const d = distanceBetweenPoints(eventPosition, center); + if (d < minDistance) { + minDistance = d; + nearestElement = el; + } + } + } + if (nearestElement) { + const tp = nearestElement.tooltipPosition(); + x = tp.x; + y = tp.y; + } + return { + x, + y + }; + } +}; +function pushOrConcat(base, toPush) { + if (toPush) { + if (isArray(toPush)) { + Array.prototype.push.apply(base, toPush); + } else { + base.push(toPush); + } + } + return base; +} +function splitNewlines(str) { + if ((typeof str === 'string' || str instanceof String) && str.indexOf('\n') > -1) { + return str.split('\n'); + } + return str; +} +function createTooltipItem(chart, item) { + const {element, datasetIndex, index} = item; + const controller = chart.getDatasetMeta(datasetIndex).controller; + const {label, value} = controller.getLabelAndValue(index); + return { + chart, + label, + parsed: controller.getParsed(index), + raw: chart.data.datasets[datasetIndex].data[index], + formattedValue: value, + dataset: controller.getDataset(), + dataIndex: index, + datasetIndex, + element + }; +} +function getTooltipSize(tooltip, options) { + const ctx = tooltip.chart.ctx; + const {body, footer, title} = tooltip; + const {boxWidth, boxHeight} = options; + const bodyFont = toFont(options.bodyFont); + const titleFont = toFont(options.titleFont); + const footerFont = toFont(options.footerFont); + const titleLineCount = title.length; + const footerLineCount = footer.length; + const bodyLineItemCount = body.length; + const padding = toPadding(options.padding); + let height = padding.height; + let width = 0; + let combinedBodyLength = body.reduce((count, bodyItem) => count + bodyItem.before.length + bodyItem.lines.length + bodyItem.after.length, 0); + combinedBodyLength += tooltip.beforeBody.length + tooltip.afterBody.length; + if (titleLineCount) { + height += titleLineCount * titleFont.lineHeight + + (titleLineCount - 1) * options.titleSpacing + + options.titleMarginBottom; + } + if (combinedBodyLength) { + const bodyLineHeight = options.displayColors ? Math.max(boxHeight, bodyFont.lineHeight) : bodyFont.lineHeight; + height += bodyLineItemCount * bodyLineHeight + + (combinedBodyLength - bodyLineItemCount) * bodyFont.lineHeight + + (combinedBodyLength - 1) * options.bodySpacing; + } + if (footerLineCount) { + height += options.footerMarginTop + + footerLineCount * footerFont.lineHeight + + (footerLineCount - 1) * options.footerSpacing; + } + let widthPadding = 0; + const maxLineWidth = function(line) { + width = Math.max(width, ctx.measureText(line).width + widthPadding); + }; + ctx.save(); + ctx.font = titleFont.string; + each(tooltip.title, maxLineWidth); + ctx.font = bodyFont.string; + each(tooltip.beforeBody.concat(tooltip.afterBody), maxLineWidth); + widthPadding = options.displayColors ? (boxWidth + 2 + options.boxPadding) : 0; + each(body, (bodyItem) => { + each(bodyItem.before, maxLineWidth); + each(bodyItem.lines, maxLineWidth); + each(bodyItem.after, maxLineWidth); + }); + widthPadding = 0; + ctx.font = footerFont.string; + each(tooltip.footer, maxLineWidth); + ctx.restore(); + width += padding.width; + return {width, height}; +} +function determineYAlign(chart, size) { + const {y, height} = size; + if (y < height / 2) { + return 'top'; + } else if (y > (chart.height - height / 2)) { + return 'bottom'; + } + return 'center'; +} +function doesNotFitWithAlign(xAlign, chart, options, size) { + const {x, width} = size; + const caret = options.caretSize + options.caretPadding; + if (xAlign === 'left' && x + width + caret > chart.width) { + return true; + } + if (xAlign === 'right' && x - width - caret < 0) { + return true; + } +} +function determineXAlign(chart, options, size, yAlign) { + const {x, width} = size; + const {width: chartWidth, chartArea: {left, right}} = chart; + let xAlign = 'center'; + if (yAlign === 'center') { + xAlign = x <= (left + right) / 2 ? 'left' : 'right'; + } else if (x <= width / 2) { + xAlign = 'left'; + } else if (x >= chartWidth - width / 2) { + xAlign = 'right'; + } + if (doesNotFitWithAlign(xAlign, chart, options, size)) { + xAlign = 'center'; + } + return xAlign; +} +function determineAlignment(chart, options, size) { + const yAlign = size.yAlign || options.yAlign || determineYAlign(chart, size); + return { + xAlign: size.xAlign || options.xAlign || determineXAlign(chart, options, size, yAlign), + yAlign + }; +} +function alignX(size, xAlign) { + let {x, width} = size; + if (xAlign === 'right') { + x -= width; + } else if (xAlign === 'center') { + x -= (width / 2); + } + return x; +} +function alignY(size, yAlign, paddingAndSize) { + let {y, height} = size; + if (yAlign === 'top') { + y += paddingAndSize; + } else if (yAlign === 'bottom') { + y -= height + paddingAndSize; + } else { + y -= (height / 2); + } + return y; +} +function getBackgroundPoint(options, size, alignment, chart) { + const {caretSize, caretPadding, cornerRadius} = options; + const {xAlign, yAlign} = alignment; + const paddingAndSize = caretSize + caretPadding; + const {topLeft, topRight, bottomLeft, bottomRight} = toTRBLCorners(cornerRadius); + let x = alignX(size, xAlign); + const y = alignY(size, yAlign, paddingAndSize); + if (yAlign === 'center') { + if (xAlign === 'left') { + x += paddingAndSize; + } else if (xAlign === 'right') { + x -= paddingAndSize; + } + } else if (xAlign === 'left') { + x -= Math.max(topLeft, bottomLeft) + caretSize; + } else if (xAlign === 'right') { + x += Math.max(topRight, bottomRight) + caretSize; + } + return { + x: _limitValue(x, 0, chart.width - size.width), + y: _limitValue(y, 0, chart.height - size.height) + }; +} +function getAlignedX(tooltip, align, options) { + const padding = toPadding(options.padding); + return align === 'center' + ? tooltip.x + tooltip.width / 2 + : align === 'right' + ? tooltip.x + tooltip.width - padding.right + : tooltip.x + padding.left; +} +function getBeforeAfterBodyLines(callback) { + return pushOrConcat([], splitNewlines(callback)); +} +function createTooltipContext(parent, tooltip, tooltipItems) { + return createContext(parent, { + tooltip, + tooltipItems, + type: 'tooltip' + }); +} +function overrideCallbacks(callbacks, context) { + const override = context && context.dataset && context.dataset.tooltip && context.dataset.tooltip.callbacks; + return override ? callbacks.override(override) : callbacks; +} +class Tooltip extends Element { + constructor(config) { + super(); + this.opacity = 0; + this._active = []; + this._eventPosition = undefined; + this._size = undefined; + this._cachedAnimations = undefined; + this._tooltipItems = []; + this.$animations = undefined; + this.$context = undefined; + this.chart = config.chart || config._chart; + this._chart = this.chart; + this.options = config.options; + this.dataPoints = undefined; + this.title = undefined; + this.beforeBody = undefined; + this.body = undefined; + this.afterBody = undefined; + this.footer = undefined; + this.xAlign = undefined; + this.yAlign = undefined; + this.x = undefined; + this.y = undefined; + this.height = undefined; + this.width = undefined; + this.caretX = undefined; + this.caretY = undefined; + this.labelColors = undefined; + this.labelPointStyles = undefined; + this.labelTextColors = undefined; + } + initialize(options) { + this.options = options; + this._cachedAnimations = undefined; + this.$context = undefined; + } + _resolveAnimations() { + const cached = this._cachedAnimations; + if (cached) { + return cached; + } + const chart = this.chart; + const options = this.options.setContext(this.getContext()); + const opts = options.enabled && chart.options.animation && options.animations; + const animations = new Animations(this.chart, opts); + if (opts._cacheable) { + this._cachedAnimations = Object.freeze(animations); + } + return animations; + } + getContext() { + return this.$context || + (this.$context = createTooltipContext(this.chart.getContext(), this, this._tooltipItems)); + } + getTitle(context, options) { + const {callbacks} = options; + const beforeTitle = callbacks.beforeTitle.apply(this, [context]); + const title = callbacks.title.apply(this, [context]); + const afterTitle = callbacks.afterTitle.apply(this, [context]); + let lines = []; + lines = pushOrConcat(lines, splitNewlines(beforeTitle)); + lines = pushOrConcat(lines, splitNewlines(title)); + lines = pushOrConcat(lines, splitNewlines(afterTitle)); + return lines; + } + getBeforeBody(tooltipItems, options) { + return getBeforeAfterBodyLines(options.callbacks.beforeBody.apply(this, [tooltipItems])); + } + getBody(tooltipItems, options) { + const {callbacks} = options; + const bodyItems = []; + each(tooltipItems, (context) => { + const bodyItem = { + before: [], + lines: [], + after: [] + }; + const scoped = overrideCallbacks(callbacks, context); + pushOrConcat(bodyItem.before, splitNewlines(scoped.beforeLabel.call(this, context))); + pushOrConcat(bodyItem.lines, scoped.label.call(this, context)); + pushOrConcat(bodyItem.after, splitNewlines(scoped.afterLabel.call(this, context))); + bodyItems.push(bodyItem); + }); + return bodyItems; + } + getAfterBody(tooltipItems, options) { + return getBeforeAfterBodyLines(options.callbacks.afterBody.apply(this, [tooltipItems])); + } + getFooter(tooltipItems, options) { + const {callbacks} = options; + const beforeFooter = callbacks.beforeFooter.apply(this, [tooltipItems]); + const footer = callbacks.footer.apply(this, [tooltipItems]); + const afterFooter = callbacks.afterFooter.apply(this, [tooltipItems]); + let lines = []; + lines = pushOrConcat(lines, splitNewlines(beforeFooter)); + lines = pushOrConcat(lines, splitNewlines(footer)); + lines = pushOrConcat(lines, splitNewlines(afterFooter)); + return lines; + } + _createItems(options) { + const active = this._active; + const data = this.chart.data; + const labelColors = []; + const labelPointStyles = []; + const labelTextColors = []; + let tooltipItems = []; + let i, len; + for (i = 0, len = active.length; i < len; ++i) { + tooltipItems.push(createTooltipItem(this.chart, active[i])); + } + if (options.filter) { + tooltipItems = tooltipItems.filter((element, index, array) => options.filter(element, index, array, data)); + } + if (options.itemSort) { + tooltipItems = tooltipItems.sort((a, b) => options.itemSort(a, b, data)); + } + each(tooltipItems, (context) => { + const scoped = overrideCallbacks(options.callbacks, context); + labelColors.push(scoped.labelColor.call(this, context)); + labelPointStyles.push(scoped.labelPointStyle.call(this, context)); + labelTextColors.push(scoped.labelTextColor.call(this, context)); + }); + this.labelColors = labelColors; + this.labelPointStyles = labelPointStyles; + this.labelTextColors = labelTextColors; + this.dataPoints = tooltipItems; + return tooltipItems; + } + update(changed, replay) { + const options = this.options.setContext(this.getContext()); + const active = this._active; + let properties; + let tooltipItems = []; + if (!active.length) { + if (this.opacity !== 0) { + properties = { + opacity: 0 + }; + } + } else { + const position = positioners[options.position].call(this, active, this._eventPosition); + tooltipItems = this._createItems(options); + this.title = this.getTitle(tooltipItems, options); + this.beforeBody = this.getBeforeBody(tooltipItems, options); + this.body = this.getBody(tooltipItems, options); + this.afterBody = this.getAfterBody(tooltipItems, options); + this.footer = this.getFooter(tooltipItems, options); + const size = this._size = getTooltipSize(this, options); + const positionAndSize = Object.assign({}, position, size); + const alignment = determineAlignment(this.chart, options, positionAndSize); + const backgroundPoint = getBackgroundPoint(options, positionAndSize, alignment, this.chart); + this.xAlign = alignment.xAlign; + this.yAlign = alignment.yAlign; + properties = { + opacity: 1, + x: backgroundPoint.x, + y: backgroundPoint.y, + width: size.width, + height: size.height, + caretX: position.x, + caretY: position.y + }; + } + this._tooltipItems = tooltipItems; + this.$context = undefined; + if (properties) { + this._resolveAnimations().update(this, properties); + } + if (changed && options.external) { + options.external.call(this, {chart: this.chart, tooltip: this, replay}); + } + } + drawCaret(tooltipPoint, ctx, size, options) { + const caretPosition = this.getCaretPosition(tooltipPoint, size, options); + ctx.lineTo(caretPosition.x1, caretPosition.y1); + ctx.lineTo(caretPosition.x2, caretPosition.y2); + ctx.lineTo(caretPosition.x3, caretPosition.y3); + } + getCaretPosition(tooltipPoint, size, options) { + const {xAlign, yAlign} = this; + const {caretSize, cornerRadius} = options; + const {topLeft, topRight, bottomLeft, bottomRight} = toTRBLCorners(cornerRadius); + const {x: ptX, y: ptY} = tooltipPoint; + const {width, height} = size; + let x1, x2, x3, y1, y2, y3; + if (yAlign === 'center') { + y2 = ptY + (height / 2); + if (xAlign === 'left') { + x1 = ptX; + x2 = x1 - caretSize; + y1 = y2 + caretSize; + y3 = y2 - caretSize; + } else { + x1 = ptX + width; + x2 = x1 + caretSize; + y1 = y2 - caretSize; + y3 = y2 + caretSize; + } + x3 = x1; + } else { + if (xAlign === 'left') { + x2 = ptX + Math.max(topLeft, bottomLeft) + (caretSize); + } else if (xAlign === 'right') { + x2 = ptX + width - Math.max(topRight, bottomRight) - caretSize; + } else { + x2 = this.caretX; + } + if (yAlign === 'top') { + y1 = ptY; + y2 = y1 - caretSize; + x1 = x2 - caretSize; + x3 = x2 + caretSize; + } else { + y1 = ptY + height; + y2 = y1 + caretSize; + x1 = x2 + caretSize; + x3 = x2 - caretSize; + } + y3 = y1; + } + return {x1, x2, x3, y1, y2, y3}; + } + drawTitle(pt, ctx, options) { + const title = this.title; + const length = title.length; + let titleFont, titleSpacing, i; + if (length) { + const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width); + pt.x = getAlignedX(this, options.titleAlign, options); + ctx.textAlign = rtlHelper.textAlign(options.titleAlign); + ctx.textBaseline = 'middle'; + titleFont = toFont(options.titleFont); + titleSpacing = options.titleSpacing; + ctx.fillStyle = options.titleColor; + ctx.font = titleFont.string; + for (i = 0; i < length; ++i) { + ctx.fillText(title[i], rtlHelper.x(pt.x), pt.y + titleFont.lineHeight / 2); + pt.y += titleFont.lineHeight + titleSpacing; + if (i + 1 === length) { + pt.y += options.titleMarginBottom - titleSpacing; + } + } + } + } + _drawColorBox(ctx, pt, i, rtlHelper, options) { + const labelColors = this.labelColors[i]; + const labelPointStyle = this.labelPointStyles[i]; + const {boxHeight, boxWidth, boxPadding} = options; + const bodyFont = toFont(options.bodyFont); + const colorX = getAlignedX(this, 'left', options); + const rtlColorX = rtlHelper.x(colorX); + const yOffSet = boxHeight < bodyFont.lineHeight ? (bodyFont.lineHeight - boxHeight) / 2 : 0; + const colorY = pt.y + yOffSet; + if (options.usePointStyle) { + const drawOptions = { + radius: Math.min(boxWidth, boxHeight) / 2, + pointStyle: labelPointStyle.pointStyle, + rotation: labelPointStyle.rotation, + borderWidth: 1 + }; + const centerX = rtlHelper.leftForLtr(rtlColorX, boxWidth) + boxWidth / 2; + const centerY = colorY + boxHeight / 2; + ctx.strokeStyle = options.multiKeyBackground; + ctx.fillStyle = options.multiKeyBackground; + drawPoint(ctx, drawOptions, centerX, centerY); + ctx.strokeStyle = labelColors.borderColor; + ctx.fillStyle = labelColors.backgroundColor; + drawPoint(ctx, drawOptions, centerX, centerY); + } else { + ctx.lineWidth = labelColors.borderWidth || 1; + ctx.strokeStyle = labelColors.borderColor; + ctx.setLineDash(labelColors.borderDash || []); + ctx.lineDashOffset = labelColors.borderDashOffset || 0; + const outerX = rtlHelper.leftForLtr(rtlColorX, boxWidth - boxPadding); + const innerX = rtlHelper.leftForLtr(rtlHelper.xPlus(rtlColorX, 1), boxWidth - boxPadding - 2); + const borderRadius = toTRBLCorners(labelColors.borderRadius); + if (Object.values(borderRadius).some(v => v !== 0)) { + ctx.beginPath(); + ctx.fillStyle = options.multiKeyBackground; + addRoundedRectPath(ctx, { + x: outerX, + y: colorY, + w: boxWidth, + h: boxHeight, + radius: borderRadius, + }); + ctx.fill(); + ctx.stroke(); + ctx.fillStyle = labelColors.backgroundColor; + ctx.beginPath(); + addRoundedRectPath(ctx, { + x: innerX, + y: colorY + 1, + w: boxWidth - 2, + h: boxHeight - 2, + radius: borderRadius, + }); + ctx.fill(); + } else { + ctx.fillStyle = options.multiKeyBackground; + ctx.fillRect(outerX, colorY, boxWidth, boxHeight); + ctx.strokeRect(outerX, colorY, boxWidth, boxHeight); + ctx.fillStyle = labelColors.backgroundColor; + ctx.fillRect(innerX, colorY + 1, boxWidth - 2, boxHeight - 2); + } + } + ctx.fillStyle = this.labelTextColors[i]; + } + drawBody(pt, ctx, options) { + const {body} = this; + const {bodySpacing, bodyAlign, displayColors, boxHeight, boxWidth, boxPadding} = options; + const bodyFont = toFont(options.bodyFont); + let bodyLineHeight = bodyFont.lineHeight; + let xLinePadding = 0; + const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width); + const fillLineOfText = function(line) { + ctx.fillText(line, rtlHelper.x(pt.x + xLinePadding), pt.y + bodyLineHeight / 2); + pt.y += bodyLineHeight + bodySpacing; + }; + const bodyAlignForCalculation = rtlHelper.textAlign(bodyAlign); + let bodyItem, textColor, lines, i, j, ilen, jlen; + ctx.textAlign = bodyAlign; + ctx.textBaseline = 'middle'; + ctx.font = bodyFont.string; + pt.x = getAlignedX(this, bodyAlignForCalculation, options); + ctx.fillStyle = options.bodyColor; + each(this.beforeBody, fillLineOfText); + xLinePadding = displayColors && bodyAlignForCalculation !== 'right' + ? bodyAlign === 'center' ? (boxWidth / 2 + boxPadding) : (boxWidth + 2 + boxPadding) + : 0; + for (i = 0, ilen = body.length; i < ilen; ++i) { + bodyItem = body[i]; + textColor = this.labelTextColors[i]; + ctx.fillStyle = textColor; + each(bodyItem.before, fillLineOfText); + lines = bodyItem.lines; + if (displayColors && lines.length) { + this._drawColorBox(ctx, pt, i, rtlHelper, options); + bodyLineHeight = Math.max(bodyFont.lineHeight, boxHeight); + } + for (j = 0, jlen = lines.length; j < jlen; ++j) { + fillLineOfText(lines[j]); + bodyLineHeight = bodyFont.lineHeight; + } + each(bodyItem.after, fillLineOfText); + } + xLinePadding = 0; + bodyLineHeight = bodyFont.lineHeight; + each(this.afterBody, fillLineOfText); + pt.y -= bodySpacing; + } + drawFooter(pt, ctx, options) { + const footer = this.footer; + const length = footer.length; + let footerFont, i; + if (length) { + const rtlHelper = getRtlAdapter(options.rtl, this.x, this.width); + pt.x = getAlignedX(this, options.footerAlign, options); + pt.y += options.footerMarginTop; + ctx.textAlign = rtlHelper.textAlign(options.footerAlign); + ctx.textBaseline = 'middle'; + footerFont = toFont(options.footerFont); + ctx.fillStyle = options.footerColor; + ctx.font = footerFont.string; + for (i = 0; i < length; ++i) { + ctx.fillText(footer[i], rtlHelper.x(pt.x), pt.y + footerFont.lineHeight / 2); + pt.y += footerFont.lineHeight + options.footerSpacing; + } + } + } + drawBackground(pt, ctx, tooltipSize, options) { + const {xAlign, yAlign} = this; + const {x, y} = pt; + const {width, height} = tooltipSize; + const {topLeft, topRight, bottomLeft, bottomRight} = toTRBLCorners(options.cornerRadius); + ctx.fillStyle = options.backgroundColor; + ctx.strokeStyle = options.borderColor; + ctx.lineWidth = options.borderWidth; + ctx.beginPath(); + ctx.moveTo(x + topLeft, y); + if (yAlign === 'top') { + this.drawCaret(pt, ctx, tooltipSize, options); + } + ctx.lineTo(x + width - topRight, y); + ctx.quadraticCurveTo(x + width, y, x + width, y + topRight); + if (yAlign === 'center' && xAlign === 'right') { + this.drawCaret(pt, ctx, tooltipSize, options); + } + ctx.lineTo(x + width, y + height - bottomRight); + ctx.quadraticCurveTo(x + width, y + height, x + width - bottomRight, y + height); + if (yAlign === 'bottom') { + this.drawCaret(pt, ctx, tooltipSize, options); + } + ctx.lineTo(x + bottomLeft, y + height); + ctx.quadraticCurveTo(x, y + height, x, y + height - bottomLeft); + if (yAlign === 'center' && xAlign === 'left') { + this.drawCaret(pt, ctx, tooltipSize, options); + } + ctx.lineTo(x, y + topLeft); + ctx.quadraticCurveTo(x, y, x + topLeft, y); + ctx.closePath(); + ctx.fill(); + if (options.borderWidth > 0) { + ctx.stroke(); + } + } + _updateAnimationTarget(options) { + const chart = this.chart; + const anims = this.$animations; + const animX = anims && anims.x; + const animY = anims && anims.y; + if (animX || animY) { + const position = positioners[options.position].call(this, this._active, this._eventPosition); + if (!position) { + return; + } + const size = this._size = getTooltipSize(this, options); + const positionAndSize = Object.assign({}, position, this._size); + const alignment = determineAlignment(chart, options, positionAndSize); + const point = getBackgroundPoint(options, positionAndSize, alignment, chart); + if (animX._to !== point.x || animY._to !== point.y) { + this.xAlign = alignment.xAlign; + this.yAlign = alignment.yAlign; + this.width = size.width; + this.height = size.height; + this.caretX = position.x; + this.caretY = position.y; + this._resolveAnimations().update(this, point); + } + } + } + draw(ctx) { + const options = this.options.setContext(this.getContext()); + let opacity = this.opacity; + if (!opacity) { + return; + } + this._updateAnimationTarget(options); + const tooltipSize = { + width: this.width, + height: this.height + }; + const pt = { + x: this.x, + y: this.y + }; + opacity = Math.abs(opacity) < 1e-3 ? 0 : opacity; + const padding = toPadding(options.padding); + const hasTooltipContent = this.title.length || this.beforeBody.length || this.body.length || this.afterBody.length || this.footer.length; + if (options.enabled && hasTooltipContent) { + ctx.save(); + ctx.globalAlpha = opacity; + this.drawBackground(pt, ctx, tooltipSize, options); + overrideTextDirection(ctx, options.textDirection); + pt.y += padding.top; + this.drawTitle(pt, ctx, options); + this.drawBody(pt, ctx, options); + this.drawFooter(pt, ctx, options); + restoreTextDirection(ctx, options.textDirection); + ctx.restore(); + } + } + getActiveElements() { + return this._active || []; + } + setActiveElements(activeElements, eventPosition) { + const lastActive = this._active; + const active = activeElements.map(({datasetIndex, index}) => { + const meta = this.chart.getDatasetMeta(datasetIndex); + if (!meta) { + throw new Error('Cannot find a dataset at index ' + datasetIndex); + } + return { + datasetIndex, + element: meta.data[index], + index, + }; + }); + const changed = !_elementsEqual(lastActive, active); + const positionChanged = this._positionChanged(active, eventPosition); + if (changed || positionChanged) { + this._active = active; + this._eventPosition = eventPosition; + this._ignoreReplayEvents = true; + this.update(true); + } + } + handleEvent(e, replay, inChartArea = true) { + if (replay && this._ignoreReplayEvents) { + return false; + } + this._ignoreReplayEvents = false; + const options = this.options; + const lastActive = this._active || []; + const active = this._getActiveElements(e, lastActive, replay, inChartArea); + const positionChanged = this._positionChanged(active, e); + const changed = replay || !_elementsEqual(active, lastActive) || positionChanged; + if (changed) { + this._active = active; + if (options.enabled || options.external) { + this._eventPosition = { + x: e.x, + y: e.y + }; + this.update(true, replay); + } + } + return changed; + } + _getActiveElements(e, lastActive, replay, inChartArea) { + const options = this.options; + if (e.type === 'mouseout') { + return []; + } + if (!inChartArea) { + return lastActive; + } + const active = this.chart.getElementsAtEventForMode(e, options.mode, options, replay); + if (options.reverse) { + active.reverse(); + } + return active; + } + _positionChanged(active, e) { + const {caretX, caretY, options} = this; + const position = positioners[options.position].call(this, active, e); + return position !== false && (caretX !== position.x || caretY !== position.y); + } +} +Tooltip.positioners = positioners; +var plugin_tooltip = { + id: 'tooltip', + _element: Tooltip, + positioners, + afterInit(chart, _args, options) { + if (options) { + chart.tooltip = new Tooltip({chart, options}); + } + }, + beforeUpdate(chart, _args, options) { + if (chart.tooltip) { + chart.tooltip.initialize(options); + } + }, + reset(chart, _args, options) { + if (chart.tooltip) { + chart.tooltip.initialize(options); + } + }, + afterDraw(chart) { + const tooltip = chart.tooltip; + const args = { + tooltip + }; + if (chart.notifyPlugins('beforeTooltipDraw', args) === false) { + return; + } + if (tooltip) { + tooltip.draw(chart.ctx); + } + chart.notifyPlugins('afterTooltipDraw', args); + }, + afterEvent(chart, args) { + if (chart.tooltip) { + const useFinalPosition = args.replay; + if (chart.tooltip.handleEvent(args.event, useFinalPosition, args.inChartArea)) { + args.changed = true; + } + } + }, + defaults: { + enabled: true, + external: null, + position: 'average', + backgroundColor: 'rgba(0,0,0,0.8)', + titleColor: '#fff', + titleFont: { + weight: 'bold', + }, + titleSpacing: 2, + titleMarginBottom: 6, + titleAlign: 'left', + bodyColor: '#fff', + bodySpacing: 2, + bodyFont: { + }, + bodyAlign: 'left', + footerColor: '#fff', + footerSpacing: 2, + footerMarginTop: 6, + footerFont: { + weight: 'bold', + }, + footerAlign: 'left', + padding: 6, + caretPadding: 2, + caretSize: 5, + cornerRadius: 6, + boxHeight: (ctx, opts) => opts.bodyFont.size, + boxWidth: (ctx, opts) => opts.bodyFont.size, + multiKeyBackground: '#fff', + displayColors: true, + boxPadding: 0, + borderColor: 'rgba(0,0,0,0)', + borderWidth: 0, + animation: { + duration: 400, + easing: 'easeOutQuart', + }, + animations: { + numbers: { + type: 'number', + properties: ['x', 'y', 'width', 'height', 'caretX', 'caretY'], + }, + opacity: { + easing: 'linear', + duration: 200 + } + }, + callbacks: { + beforeTitle: noop, + title(tooltipItems) { + if (tooltipItems.length > 0) { + const item = tooltipItems[0]; + const labels = item.chart.data.labels; + const labelCount = labels ? labels.length : 0; + if (this && this.options && this.options.mode === 'dataset') { + return item.dataset.label || ''; + } else if (item.label) { + return item.label; + } else if (labelCount > 0 && item.dataIndex < labelCount) { + return labels[item.dataIndex]; + } + } + return ''; + }, + afterTitle: noop, + beforeBody: noop, + beforeLabel: noop, + label(tooltipItem) { + if (this && this.options && this.options.mode === 'dataset') { + return tooltipItem.label + ': ' + tooltipItem.formattedValue || tooltipItem.formattedValue; + } + let label = tooltipItem.dataset.label || ''; + if (label) { + label += ': '; + } + const value = tooltipItem.formattedValue; + if (!isNullOrUndef(value)) { + label += value; + } + return label; + }, + labelColor(tooltipItem) { + const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex); + const options = meta.controller.getStyle(tooltipItem.dataIndex); + return { + borderColor: options.borderColor, + backgroundColor: options.backgroundColor, + borderWidth: options.borderWidth, + borderDash: options.borderDash, + borderDashOffset: options.borderDashOffset, + borderRadius: 0, + }; + }, + labelTextColor() { + return this.options.bodyColor; + }, + labelPointStyle(tooltipItem) { + const meta = tooltipItem.chart.getDatasetMeta(tooltipItem.datasetIndex); + const options = meta.controller.getStyle(tooltipItem.dataIndex); + return { + pointStyle: options.pointStyle, + rotation: options.rotation, + }; + }, + afterLabel: noop, + afterBody: noop, + beforeFooter: noop, + footer: noop, + afterFooter: noop + } + }, + defaultRoutes: { + bodyFont: 'font', + footerFont: 'font', + titleFont: 'font' + }, + descriptors: { + _scriptable: (name) => name !== 'filter' && name !== 'itemSort' && name !== 'external', + _indexable: false, + callbacks: { + _scriptable: false, + _indexable: false, + }, + animation: { + _fallback: false + }, + animations: { + _fallback: 'animation' + } + }, + additionalOptionScopes: ['interaction'] +}; + +var plugins = /*#__PURE__*/Object.freeze({ +__proto__: null, +Decimation: plugin_decimation, +Filler: plugin_filler, +Legend: plugin_legend, +SubTitle: plugin_subtitle, +Title: plugin_title, +Tooltip: plugin_tooltip +}); + +const addIfString = (labels, raw, index, addedLabels) => { + if (typeof raw === 'string') { + index = labels.push(raw) - 1; + addedLabels.unshift({index, label: raw}); + } else if (isNaN(raw)) { + index = null; + } + return index; +}; +function findOrAddLabel(labels, raw, index, addedLabels) { + const first = labels.indexOf(raw); + if (first === -1) { + return addIfString(labels, raw, index, addedLabels); + } + const last = labels.lastIndexOf(raw); + return first !== last ? index : first; +} +const validIndex = (index, max) => index === null ? null : _limitValue(Math.round(index), 0, max); +class CategoryScale extends Scale { + constructor(cfg) { + super(cfg); + this._startValue = undefined; + this._valueRange = 0; + this._addedLabels = []; + } + init(scaleOptions) { + const added = this._addedLabels; + if (added.length) { + const labels = this.getLabels(); + for (const {index, label} of added) { + if (labels[index] === label) { + labels.splice(index, 1); + } + } + this._addedLabels = []; + } + super.init(scaleOptions); + } + parse(raw, index) { + if (isNullOrUndef(raw)) { + return null; + } + const labels = this.getLabels(); + index = isFinite(index) && labels[index] === raw ? index + : findOrAddLabel(labels, raw, valueOrDefault(index, raw), this._addedLabels); + return validIndex(index, labels.length - 1); + } + determineDataLimits() { + const {minDefined, maxDefined} = this.getUserBounds(); + let {min, max} = this.getMinMax(true); + if (this.options.bounds === 'ticks') { + if (!minDefined) { + min = 0; + } + if (!maxDefined) { + max = this.getLabels().length - 1; + } + } + this.min = min; + this.max = max; + } + buildTicks() { + const min = this.min; + const max = this.max; + const offset = this.options.offset; + const ticks = []; + let labels = this.getLabels(); + labels = (min === 0 && max === labels.length - 1) ? labels : labels.slice(min, max + 1); + this._valueRange = Math.max(labels.length - (offset ? 0 : 1), 1); + this._startValue = this.min - (offset ? 0.5 : 0); + for (let value = min; value <= max; value++) { + ticks.push({value}); + } + return ticks; + } + getLabelForValue(value) { + const labels = this.getLabels(); + if (value >= 0 && value < labels.length) { + return labels[value]; + } + return value; + } + configure() { + super.configure(); + if (!this.isHorizontal()) { + this._reversePixels = !this._reversePixels; + } + } + getPixelForValue(value) { + if (typeof value !== 'number') { + value = this.parse(value); + } + return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange); + } + getPixelForTick(index) { + const ticks = this.ticks; + if (index < 0 || index > ticks.length - 1) { + return null; + } + return this.getPixelForValue(ticks[index].value); + } + getValueForPixel(pixel) { + return Math.round(this._startValue + this.getDecimalForPixel(pixel) * this._valueRange); + } + getBasePixel() { + return this.bottom; + } +} +CategoryScale.id = 'category'; +CategoryScale.defaults = { + ticks: { + callback: CategoryScale.prototype.getLabelForValue + } +}; + +function generateTicks$1(generationOptions, dataRange) { + const ticks = []; + const MIN_SPACING = 1e-14; + const {bounds, step, min, max, precision, count, maxTicks, maxDigits, includeBounds} = generationOptions; + const unit = step || 1; + const maxSpaces = maxTicks - 1; + const {min: rmin, max: rmax} = dataRange; + const minDefined = !isNullOrUndef(min); + const maxDefined = !isNullOrUndef(max); + const countDefined = !isNullOrUndef(count); + const minSpacing = (rmax - rmin) / (maxDigits + 1); + let spacing = niceNum((rmax - rmin) / maxSpaces / unit) * unit; + let factor, niceMin, niceMax, numSpaces; + if (spacing < MIN_SPACING && !minDefined && !maxDefined) { + return [{value: rmin}, {value: rmax}]; + } + numSpaces = Math.ceil(rmax / spacing) - Math.floor(rmin / spacing); + if (numSpaces > maxSpaces) { + spacing = niceNum(numSpaces * spacing / maxSpaces / unit) * unit; + } + if (!isNullOrUndef(precision)) { + factor = Math.pow(10, precision); + spacing = Math.ceil(spacing * factor) / factor; + } + if (bounds === 'ticks') { + niceMin = Math.floor(rmin / spacing) * spacing; + niceMax = Math.ceil(rmax / spacing) * spacing; + } else { + niceMin = rmin; + niceMax = rmax; + } + if (minDefined && maxDefined && step && almostWhole((max - min) / step, spacing / 1000)) { + numSpaces = Math.round(Math.min((max - min) / spacing, maxTicks)); + spacing = (max - min) / numSpaces; + niceMin = min; + niceMax = max; + } else if (countDefined) { + niceMin = minDefined ? min : niceMin; + niceMax = maxDefined ? max : niceMax; + numSpaces = count - 1; + spacing = (niceMax - niceMin) / numSpaces; + } else { + numSpaces = (niceMax - niceMin) / spacing; + if (almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) { + numSpaces = Math.round(numSpaces); + } else { + numSpaces = Math.ceil(numSpaces); + } + } + const decimalPlaces = Math.max( + _decimalPlaces(spacing), + _decimalPlaces(niceMin) + ); + factor = Math.pow(10, isNullOrUndef(precision) ? decimalPlaces : precision); + niceMin = Math.round(niceMin * factor) / factor; + niceMax = Math.round(niceMax * factor) / factor; + let j = 0; + if (minDefined) { + if (includeBounds && niceMin !== min) { + ticks.push({value: min}); + if (niceMin < min) { + j++; + } + if (almostEquals(Math.round((niceMin + j * spacing) * factor) / factor, min, relativeLabelSize(min, minSpacing, generationOptions))) { + j++; + } + } else if (niceMin < min) { + j++; + } + } + for (; j < numSpaces; ++j) { + ticks.push({value: Math.round((niceMin + j * spacing) * factor) / factor}); + } + if (maxDefined && includeBounds && niceMax !== max) { + if (ticks.length && almostEquals(ticks[ticks.length - 1].value, max, relativeLabelSize(max, minSpacing, generationOptions))) { + ticks[ticks.length - 1].value = max; + } else { + ticks.push({value: max}); + } + } else if (!maxDefined || niceMax === max) { + ticks.push({value: niceMax}); + } + return ticks; +} +function relativeLabelSize(value, minSpacing, {horizontal, minRotation}) { + const rad = toRadians(minRotation); + const ratio = (horizontal ? Math.sin(rad) : Math.cos(rad)) || 0.001; + const length = 0.75 * minSpacing * ('' + value).length; + return Math.min(minSpacing / ratio, length); +} +class LinearScaleBase extends Scale { + constructor(cfg) { + super(cfg); + this.start = undefined; + this.end = undefined; + this._startValue = undefined; + this._endValue = undefined; + this._valueRange = 0; + } + parse(raw, index) { + if (isNullOrUndef(raw)) { + return null; + } + if ((typeof raw === 'number' || raw instanceof Number) && !isFinite(+raw)) { + return null; + } + return +raw; + } + handleTickRangeOptions() { + const {beginAtZero} = this.options; + const {minDefined, maxDefined} = this.getUserBounds(); + let {min, max} = this; + const setMin = v => (min = minDefined ? min : v); + const setMax = v => (max = maxDefined ? max : v); + if (beginAtZero) { + const minSign = sign(min); + const maxSign = sign(max); + if (minSign < 0 && maxSign < 0) { + setMax(0); + } else if (minSign > 0 && maxSign > 0) { + setMin(0); + } + } + if (min === max) { + let offset = 1; + if (max >= Number.MAX_SAFE_INTEGER || min <= Number.MIN_SAFE_INTEGER) { + offset = Math.abs(max * 0.05); + } + setMax(max + offset); + if (!beginAtZero) { + setMin(min - offset); + } + } + this.min = min; + this.max = max; + } + getTickLimit() { + const tickOpts = this.options.ticks; + let {maxTicksLimit, stepSize} = tickOpts; + let maxTicks; + if (stepSize) { + maxTicks = Math.ceil(this.max / stepSize) - Math.floor(this.min / stepSize) + 1; + if (maxTicks > 1000) { + console.warn(`scales.${this.id}.ticks.stepSize: ${stepSize} would result generating up to ${maxTicks} ticks. Limiting to 1000.`); + maxTicks = 1000; + } + } else { + maxTicks = this.computeTickLimit(); + maxTicksLimit = maxTicksLimit || 11; + } + if (maxTicksLimit) { + maxTicks = Math.min(maxTicksLimit, maxTicks); + } + return maxTicks; + } + computeTickLimit() { + return Number.POSITIVE_INFINITY; + } + buildTicks() { + const opts = this.options; + const tickOpts = opts.ticks; + let maxTicks = this.getTickLimit(); + maxTicks = Math.max(2, maxTicks); + const numericGeneratorOptions = { + maxTicks, + bounds: opts.bounds, + min: opts.min, + max: opts.max, + precision: tickOpts.precision, + step: tickOpts.stepSize, + count: tickOpts.count, + maxDigits: this._maxDigits(), + horizontal: this.isHorizontal(), + minRotation: tickOpts.minRotation || 0, + includeBounds: tickOpts.includeBounds !== false + }; + const dataRange = this._range || this; + const ticks = generateTicks$1(numericGeneratorOptions, dataRange); + if (opts.bounds === 'ticks') { + _setMinAndMaxByKey(ticks, this, 'value'); + } + if (opts.reverse) { + ticks.reverse(); + this.start = this.max; + this.end = this.min; + } else { + this.start = this.min; + this.end = this.max; + } + return ticks; + } + configure() { + const ticks = this.ticks; + let start = this.min; + let end = this.max; + super.configure(); + if (this.options.offset && ticks.length) { + const offset = (end - start) / Math.max(ticks.length - 1, 1) / 2; + start -= offset; + end += offset; + } + this._startValue = start; + this._endValue = end; + this._valueRange = end - start; + } + getLabelForValue(value) { + return formatNumber(value, this.chart.options.locale, this.options.ticks.format); + } +} + +class LinearScale extends LinearScaleBase { + determineDataLimits() { + const {min, max} = this.getMinMax(true); + this.min = isNumberFinite(min) ? min : 0; + this.max = isNumberFinite(max) ? max : 1; + this.handleTickRangeOptions(); + } + computeTickLimit() { + const horizontal = this.isHorizontal(); + const length = horizontal ? this.width : this.height; + const minRotation = toRadians(this.options.ticks.minRotation); + const ratio = (horizontal ? Math.sin(minRotation) : Math.cos(minRotation)) || 0.001; + const tickFont = this._resolveTickFontOptions(0); + return Math.ceil(length / Math.min(40, tickFont.lineHeight / ratio)); + } + getPixelForValue(value) { + return value === null ? NaN : this.getPixelForDecimal((value - this._startValue) / this._valueRange); + } + getValueForPixel(pixel) { + return this._startValue + this.getDecimalForPixel(pixel) * this._valueRange; + } +} +LinearScale.id = 'linear'; +LinearScale.defaults = { + ticks: { + callback: Ticks.formatters.numeric + } +}; + +function isMajor(tickVal) { + const remain = tickVal / (Math.pow(10, Math.floor(log10(tickVal)))); + return remain === 1; +} +function generateTicks(generationOptions, dataRange) { + const endExp = Math.floor(log10(dataRange.max)); + const endSignificand = Math.ceil(dataRange.max / Math.pow(10, endExp)); + const ticks = []; + let tickVal = finiteOrDefault(generationOptions.min, Math.pow(10, Math.floor(log10(dataRange.min)))); + let exp = Math.floor(log10(tickVal)); + let significand = Math.floor(tickVal / Math.pow(10, exp)); + let precision = exp < 0 ? Math.pow(10, Math.abs(exp)) : 1; + do { + ticks.push({value: tickVal, major: isMajor(tickVal)}); + ++significand; + if (significand === 10) { + significand = 1; + ++exp; + precision = exp >= 0 ? 1 : precision; + } + tickVal = Math.round(significand * Math.pow(10, exp) * precision) / precision; + } while (exp < endExp || (exp === endExp && significand < endSignificand)); + const lastTick = finiteOrDefault(generationOptions.max, tickVal); + ticks.push({value: lastTick, major: isMajor(tickVal)}); + return ticks; +} +class LogarithmicScale extends Scale { + constructor(cfg) { + super(cfg); + this.start = undefined; + this.end = undefined; + this._startValue = undefined; + this._valueRange = 0; + } + parse(raw, index) { + const value = LinearScaleBase.prototype.parse.apply(this, [raw, index]); + if (value === 0) { + this._zero = true; + return undefined; + } + return isNumberFinite(value) && value > 0 ? value : null; + } + determineDataLimits() { + const {min, max} = this.getMinMax(true); + this.min = isNumberFinite(min) ? Math.max(0, min) : null; + this.max = isNumberFinite(max) ? Math.max(0, max) : null; + if (this.options.beginAtZero) { + this._zero = true; + } + this.handleTickRangeOptions(); + } + handleTickRangeOptions() { + const {minDefined, maxDefined} = this.getUserBounds(); + let min = this.min; + let max = this.max; + const setMin = v => (min = minDefined ? min : v); + const setMax = v => (max = maxDefined ? max : v); + const exp = (v, m) => Math.pow(10, Math.floor(log10(v)) + m); + if (min === max) { + if (min <= 0) { + setMin(1); + setMax(10); + } else { + setMin(exp(min, -1)); + setMax(exp(max, +1)); + } + } + if (min <= 0) { + setMin(exp(max, -1)); + } + if (max <= 0) { + setMax(exp(min, +1)); + } + if (this._zero && this.min !== this._suggestedMin && min === exp(this.min, 0)) { + setMin(exp(min, -1)); + } + this.min = min; + this.max = max; + } + buildTicks() { + const opts = this.options; + const generationOptions = { + min: this._userMin, + max: this._userMax + }; + const ticks = generateTicks(generationOptions, this); + if (opts.bounds === 'ticks') { + _setMinAndMaxByKey(ticks, this, 'value'); + } + if (opts.reverse) { + ticks.reverse(); + this.start = this.max; + this.end = this.min; + } else { + this.start = this.min; + this.end = this.max; + } + return ticks; + } + getLabelForValue(value) { + return value === undefined + ? '0' + : formatNumber(value, this.chart.options.locale, this.options.ticks.format); + } + configure() { + const start = this.min; + super.configure(); + this._startValue = log10(start); + this._valueRange = log10(this.max) - log10(start); + } + getPixelForValue(value) { + if (value === undefined || value === 0) { + value = this.min; + } + if (value === null || isNaN(value)) { + return NaN; + } + return this.getPixelForDecimal(value === this.min + ? 0 + : (log10(value) - this._startValue) / this._valueRange); + } + getValueForPixel(pixel) { + const decimal = this.getDecimalForPixel(pixel); + return Math.pow(10, this._startValue + decimal * this._valueRange); + } +} +LogarithmicScale.id = 'logarithmic'; +LogarithmicScale.defaults = { + ticks: { + callback: Ticks.formatters.logarithmic, + major: { + enabled: true + } + } +}; + +function getTickBackdropHeight(opts) { + const tickOpts = opts.ticks; + if (tickOpts.display && opts.display) { + const padding = toPadding(tickOpts.backdropPadding); + return valueOrDefault(tickOpts.font && tickOpts.font.size, defaults.font.size) + padding.height; + } + return 0; +} +function measureLabelSize(ctx, font, label) { + label = isArray(label) ? label : [label]; + return { + w: _longestText(ctx, font.string, label), + h: label.length * font.lineHeight + }; +} +function determineLimits(angle, pos, size, min, max) { + if (angle === min || angle === max) { + return { + start: pos - (size / 2), + end: pos + (size / 2) + }; + } else if (angle < min || angle > max) { + return { + start: pos - size, + end: pos + }; + } + return { + start: pos, + end: pos + size + }; +} +function fitWithPointLabels(scale) { + const orig = { + l: scale.left + scale._padding.left, + r: scale.right - scale._padding.right, + t: scale.top + scale._padding.top, + b: scale.bottom - scale._padding.bottom + }; + const limits = Object.assign({}, orig); + const labelSizes = []; + const padding = []; + const valueCount = scale._pointLabels.length; + const pointLabelOpts = scale.options.pointLabels; + const additionalAngle = pointLabelOpts.centerPointLabels ? PI / valueCount : 0; + for (let i = 0; i < valueCount; i++) { + const opts = pointLabelOpts.setContext(scale.getPointLabelContext(i)); + padding[i] = opts.padding; + const pointPosition = scale.getPointPosition(i, scale.drawingArea + padding[i], additionalAngle); + const plFont = toFont(opts.font); + const textSize = measureLabelSize(scale.ctx, plFont, scale._pointLabels[i]); + labelSizes[i] = textSize; + const angleRadians = _normalizeAngle(scale.getIndexAngle(i) + additionalAngle); + const angle = Math.round(toDegrees(angleRadians)); + const hLimits = determineLimits(angle, pointPosition.x, textSize.w, 0, 180); + const vLimits = determineLimits(angle, pointPosition.y, textSize.h, 90, 270); + updateLimits(limits, orig, angleRadians, hLimits, vLimits); + } + scale.setCenterPoint( + orig.l - limits.l, + limits.r - orig.r, + orig.t - limits.t, + limits.b - orig.b + ); + scale._pointLabelItems = buildPointLabelItems(scale, labelSizes, padding); +} +function updateLimits(limits, orig, angle, hLimits, vLimits) { + const sin = Math.abs(Math.sin(angle)); + const cos = Math.abs(Math.cos(angle)); + let x = 0; + let y = 0; + if (hLimits.start < orig.l) { + x = (orig.l - hLimits.start) / sin; + limits.l = Math.min(limits.l, orig.l - x); + } else if (hLimits.end > orig.r) { + x = (hLimits.end - orig.r) / sin; + limits.r = Math.max(limits.r, orig.r + x); + } + if (vLimits.start < orig.t) { + y = (orig.t - vLimits.start) / cos; + limits.t = Math.min(limits.t, orig.t - y); + } else if (vLimits.end > orig.b) { + y = (vLimits.end - orig.b) / cos; + limits.b = Math.max(limits.b, orig.b + y); + } +} +function buildPointLabelItems(scale, labelSizes, padding) { + const items = []; + const valueCount = scale._pointLabels.length; + const opts = scale.options; + const extra = getTickBackdropHeight(opts) / 2; + const outerDistance = scale.drawingArea; + const additionalAngle = opts.pointLabels.centerPointLabels ? PI / valueCount : 0; + for (let i = 0; i < valueCount; i++) { + const pointLabelPosition = scale.getPointPosition(i, outerDistance + extra + padding[i], additionalAngle); + const angle = Math.round(toDegrees(_normalizeAngle(pointLabelPosition.angle + HALF_PI))); + const size = labelSizes[i]; + const y = yForAngle(pointLabelPosition.y, size.h, angle); + const textAlign = getTextAlignForAngle(angle); + const left = leftForTextAlign(pointLabelPosition.x, size.w, textAlign); + items.push({ + x: pointLabelPosition.x, + y, + textAlign, + left, + top: y, + right: left + size.w, + bottom: y + size.h + }); + } + return items; +} +function getTextAlignForAngle(angle) { + if (angle === 0 || angle === 180) { + return 'center'; + } else if (angle < 180) { + return 'left'; + } + return 'right'; +} +function leftForTextAlign(x, w, align) { + if (align === 'right') { + x -= w; + } else if (align === 'center') { + x -= (w / 2); + } + return x; +} +function yForAngle(y, h, angle) { + if (angle === 90 || angle === 270) { + y -= (h / 2); + } else if (angle > 270 || angle < 90) { + y -= h; + } + return y; +} +function drawPointLabels(scale, labelCount) { + const {ctx, options: {pointLabels}} = scale; + for (let i = labelCount - 1; i >= 0; i--) { + const optsAtIndex = pointLabels.setContext(scale.getPointLabelContext(i)); + const plFont = toFont(optsAtIndex.font); + const {x, y, textAlign, left, top, right, bottom} = scale._pointLabelItems[i]; + const {backdropColor} = optsAtIndex; + if (!isNullOrUndef(backdropColor)) { + const padding = toPadding(optsAtIndex.backdropPadding); + ctx.fillStyle = backdropColor; + ctx.fillRect(left - padding.left, top - padding.top, right - left + padding.width, bottom - top + padding.height); + } + renderText( + ctx, + scale._pointLabels[i], + x, + y + (plFont.lineHeight / 2), + plFont, + { + color: optsAtIndex.color, + textAlign: textAlign, + textBaseline: 'middle' + } + ); + } +} +function pathRadiusLine(scale, radius, circular, labelCount) { + const {ctx} = scale; + if (circular) { + ctx.arc(scale.xCenter, scale.yCenter, radius, 0, TAU); + } else { + let pointPosition = scale.getPointPosition(0, radius); + ctx.moveTo(pointPosition.x, pointPosition.y); + for (let i = 1; i < labelCount; i++) { + pointPosition = scale.getPointPosition(i, radius); + ctx.lineTo(pointPosition.x, pointPosition.y); + } + } +} +function drawRadiusLine(scale, gridLineOpts, radius, labelCount) { + const ctx = scale.ctx; + const circular = gridLineOpts.circular; + const {color, lineWidth} = gridLineOpts; + if ((!circular && !labelCount) || !color || !lineWidth || radius < 0) { + return; + } + ctx.save(); + ctx.strokeStyle = color; + ctx.lineWidth = lineWidth; + ctx.setLineDash(gridLineOpts.borderDash); + ctx.lineDashOffset = gridLineOpts.borderDashOffset; + ctx.beginPath(); + pathRadiusLine(scale, radius, circular, labelCount); + ctx.closePath(); + ctx.stroke(); + ctx.restore(); +} +function createPointLabelContext(parent, index, label) { + return createContext(parent, { + label, + index, + type: 'pointLabel' + }); +} +class RadialLinearScale extends LinearScaleBase { + constructor(cfg) { + super(cfg); + this.xCenter = undefined; + this.yCenter = undefined; + this.drawingArea = undefined; + this._pointLabels = []; + this._pointLabelItems = []; + } + setDimensions() { + const padding = this._padding = toPadding(getTickBackdropHeight(this.options) / 2); + const w = this.width = this.maxWidth - padding.width; + const h = this.height = this.maxHeight - padding.height; + this.xCenter = Math.floor(this.left + w / 2 + padding.left); + this.yCenter = Math.floor(this.top + h / 2 + padding.top); + this.drawingArea = Math.floor(Math.min(w, h) / 2); + } + determineDataLimits() { + const {min, max} = this.getMinMax(false); + this.min = isNumberFinite(min) && !isNaN(min) ? min : 0; + this.max = isNumberFinite(max) && !isNaN(max) ? max : 0; + this.handleTickRangeOptions(); + } + computeTickLimit() { + return Math.ceil(this.drawingArea / getTickBackdropHeight(this.options)); + } + generateTickLabels(ticks) { + LinearScaleBase.prototype.generateTickLabels.call(this, ticks); + this._pointLabels = this.getLabels() + .map((value, index) => { + const label = callback(this.options.pointLabels.callback, [value, index], this); + return label || label === 0 ? label : ''; + }) + .filter((v, i) => this.chart.getDataVisibility(i)); + } + fit() { + const opts = this.options; + if (opts.display && opts.pointLabels.display) { + fitWithPointLabels(this); + } else { + this.setCenterPoint(0, 0, 0, 0); + } + } + setCenterPoint(leftMovement, rightMovement, topMovement, bottomMovement) { + this.xCenter += Math.floor((leftMovement - rightMovement) / 2); + this.yCenter += Math.floor((topMovement - bottomMovement) / 2); + this.drawingArea -= Math.min(this.drawingArea / 2, Math.max(leftMovement, rightMovement, topMovement, bottomMovement)); + } + getIndexAngle(index) { + const angleMultiplier = TAU / (this._pointLabels.length || 1); + const startAngle = this.options.startAngle || 0; + return _normalizeAngle(index * angleMultiplier + toRadians(startAngle)); + } + getDistanceFromCenterForValue(value) { + if (isNullOrUndef(value)) { + return NaN; + } + const scalingFactor = this.drawingArea / (this.max - this.min); + if (this.options.reverse) { + return (this.max - value) * scalingFactor; + } + return (value - this.min) * scalingFactor; + } + getValueForDistanceFromCenter(distance) { + if (isNullOrUndef(distance)) { + return NaN; + } + const scaledDistance = distance / (this.drawingArea / (this.max - this.min)); + return this.options.reverse ? this.max - scaledDistance : this.min + scaledDistance; + } + getPointLabelContext(index) { + const pointLabels = this._pointLabels || []; + if (index >= 0 && index < pointLabels.length) { + const pointLabel = pointLabels[index]; + return createPointLabelContext(this.getContext(), index, pointLabel); + } + } + getPointPosition(index, distanceFromCenter, additionalAngle = 0) { + const angle = this.getIndexAngle(index) - HALF_PI + additionalAngle; + return { + x: Math.cos(angle) * distanceFromCenter + this.xCenter, + y: Math.sin(angle) * distanceFromCenter + this.yCenter, + angle + }; + } + getPointPositionForValue(index, value) { + return this.getPointPosition(index, this.getDistanceFromCenterForValue(value)); + } + getBasePosition(index) { + return this.getPointPositionForValue(index || 0, this.getBaseValue()); + } + getPointLabelPosition(index) { + const {left, top, right, bottom} = this._pointLabelItems[index]; + return { + left, + top, + right, + bottom, + }; + } + drawBackground() { + const {backgroundColor, grid: {circular}} = this.options; + if (backgroundColor) { + const ctx = this.ctx; + ctx.save(); + ctx.beginPath(); + pathRadiusLine(this, this.getDistanceFromCenterForValue(this._endValue), circular, this._pointLabels.length); + ctx.closePath(); + ctx.fillStyle = backgroundColor; + ctx.fill(); + ctx.restore(); + } + } + drawGrid() { + const ctx = this.ctx; + const opts = this.options; + const {angleLines, grid} = opts; + const labelCount = this._pointLabels.length; + let i, offset, position; + if (opts.pointLabels.display) { + drawPointLabels(this, labelCount); + } + if (grid.display) { + this.ticks.forEach((tick, index) => { + if (index !== 0) { + offset = this.getDistanceFromCenterForValue(tick.value); + const optsAtIndex = grid.setContext(this.getContext(index - 1)); + drawRadiusLine(this, optsAtIndex, offset, labelCount); + } + }); + } + if (angleLines.display) { + ctx.save(); + for (i = labelCount - 1; i >= 0; i--) { + const optsAtIndex = angleLines.setContext(this.getPointLabelContext(i)); + const {color, lineWidth} = optsAtIndex; + if (!lineWidth || !color) { + continue; + } + ctx.lineWidth = lineWidth; + ctx.strokeStyle = color; + ctx.setLineDash(optsAtIndex.borderDash); + ctx.lineDashOffset = optsAtIndex.borderDashOffset; + offset = this.getDistanceFromCenterForValue(opts.ticks.reverse ? this.min : this.max); + position = this.getPointPosition(i, offset); + ctx.beginPath(); + ctx.moveTo(this.xCenter, this.yCenter); + ctx.lineTo(position.x, position.y); + ctx.stroke(); + } + ctx.restore(); + } + } + drawBorder() {} + drawLabels() { + const ctx = this.ctx; + const opts = this.options; + const tickOpts = opts.ticks; + if (!tickOpts.display) { + return; + } + const startAngle = this.getIndexAngle(0); + let offset, width; + ctx.save(); + ctx.translate(this.xCenter, this.yCenter); + ctx.rotate(startAngle); + ctx.textAlign = 'center'; + ctx.textBaseline = 'middle'; + this.ticks.forEach((tick, index) => { + if (index === 0 && !opts.reverse) { + return; + } + const optsAtIndex = tickOpts.setContext(this.getContext(index)); + const tickFont = toFont(optsAtIndex.font); + offset = this.getDistanceFromCenterForValue(this.ticks[index].value); + if (optsAtIndex.showLabelBackdrop) { + ctx.font = tickFont.string; + width = ctx.measureText(tick.label).width; + ctx.fillStyle = optsAtIndex.backdropColor; + const padding = toPadding(optsAtIndex.backdropPadding); + ctx.fillRect( + -width / 2 - padding.left, + -offset - tickFont.size / 2 - padding.top, + width + padding.width, + tickFont.size + padding.height + ); + } + renderText(ctx, tick.label, 0, -offset, tickFont, { + color: optsAtIndex.color, + }); + }); + ctx.restore(); + } + drawTitle() {} +} +RadialLinearScale.id = 'radialLinear'; +RadialLinearScale.defaults = { + display: true, + animate: true, + position: 'chartArea', + angleLines: { + display: true, + lineWidth: 1, + borderDash: [], + borderDashOffset: 0.0 + }, + grid: { + circular: false + }, + startAngle: 0, + ticks: { + showLabelBackdrop: true, + callback: Ticks.formatters.numeric + }, + pointLabels: { + backdropColor: undefined, + backdropPadding: 2, + display: true, + font: { + size: 10 + }, + callback(label) { + return label; + }, + padding: 5, + centerPointLabels: false + } +}; +RadialLinearScale.defaultRoutes = { + 'angleLines.color': 'borderColor', + 'pointLabels.color': 'color', + 'ticks.color': 'color' +}; +RadialLinearScale.descriptors = { + angleLines: { + _fallback: 'grid' + } +}; + +const INTERVALS = { + millisecond: {common: true, size: 1, steps: 1000}, + second: {common: true, size: 1000, steps: 60}, + minute: {common: true, size: 60000, steps: 60}, + hour: {common: true, size: 3600000, steps: 24}, + day: {common: true, size: 86400000, steps: 30}, + week: {common: false, size: 604800000, steps: 4}, + month: {common: true, size: 2.628e9, steps: 12}, + quarter: {common: false, size: 7.884e9, steps: 4}, + year: {common: true, size: 3.154e10} +}; +const UNITS = (Object.keys(INTERVALS)); +function sorter(a, b) { + return a - b; +} +function parse(scale, input) { + if (isNullOrUndef(input)) { + return null; + } + const adapter = scale._adapter; + const {parser, round, isoWeekday} = scale._parseOpts; + let value = input; + if (typeof parser === 'function') { + value = parser(value); + } + if (!isNumberFinite(value)) { + value = typeof parser === 'string' + ? adapter.parse(value, parser) + : adapter.parse(value); + } + if (value === null) { + return null; + } + if (round) { + value = round === 'week' && (isNumber(isoWeekday) || isoWeekday === true) + ? adapter.startOf(value, 'isoWeek', isoWeekday) + : adapter.startOf(value, round); + } + return +value; +} +function determineUnitForAutoTicks(minUnit, min, max, capacity) { + const ilen = UNITS.length; + for (let i = UNITS.indexOf(minUnit); i < ilen - 1; ++i) { + const interval = INTERVALS[UNITS[i]]; + const factor = interval.steps ? interval.steps : Number.MAX_SAFE_INTEGER; + if (interval.common && Math.ceil((max - min) / (factor * interval.size)) <= capacity) { + return UNITS[i]; + } + } + return UNITS[ilen - 1]; +} +function determineUnitForFormatting(scale, numTicks, minUnit, min, max) { + for (let i = UNITS.length - 1; i >= UNITS.indexOf(minUnit); i--) { + const unit = UNITS[i]; + if (INTERVALS[unit].common && scale._adapter.diff(max, min, unit) >= numTicks - 1) { + return unit; + } + } + return UNITS[minUnit ? UNITS.indexOf(minUnit) : 0]; +} +function determineMajorUnit(unit) { + for (let i = UNITS.indexOf(unit) + 1, ilen = UNITS.length; i < ilen; ++i) { + if (INTERVALS[UNITS[i]].common) { + return UNITS[i]; + } + } +} +function addTick(ticks, time, timestamps) { + if (!timestamps) { + ticks[time] = true; + } else if (timestamps.length) { + const {lo, hi} = _lookup(timestamps, time); + const timestamp = timestamps[lo] >= time ? timestamps[lo] : timestamps[hi]; + ticks[timestamp] = true; + } +} +function setMajorTicks(scale, ticks, map, majorUnit) { + const adapter = scale._adapter; + const first = +adapter.startOf(ticks[0].value, majorUnit); + const last = ticks[ticks.length - 1].value; + let major, index; + for (major = first; major <= last; major = +adapter.add(major, 1, majorUnit)) { + index = map[major]; + if (index >= 0) { + ticks[index].major = true; + } + } + return ticks; +} +function ticksFromTimestamps(scale, values, majorUnit) { + const ticks = []; + const map = {}; + const ilen = values.length; + let i, value; + for (i = 0; i < ilen; ++i) { + value = values[i]; + map[value] = i; + ticks.push({ + value, + major: false + }); + } + return (ilen === 0 || !majorUnit) ? ticks : setMajorTicks(scale, ticks, map, majorUnit); +} +class TimeScale extends Scale { + constructor(props) { + super(props); + this._cache = { + data: [], + labels: [], + all: [] + }; + this._unit = 'day'; + this._majorUnit = undefined; + this._offsets = {}; + this._normalized = false; + this._parseOpts = undefined; + } + init(scaleOpts, opts) { + const time = scaleOpts.time || (scaleOpts.time = {}); + const adapter = this._adapter = new _adapters._date(scaleOpts.adapters.date); + mergeIf(time.displayFormats, adapter.formats()); + this._parseOpts = { + parser: time.parser, + round: time.round, + isoWeekday: time.isoWeekday + }; + super.init(scaleOpts); + this._normalized = opts.normalized; + } + parse(raw, index) { + if (raw === undefined) { + return null; + } + return parse(this, raw); + } + beforeLayout() { + super.beforeLayout(); + this._cache = { + data: [], + labels: [], + all: [] + }; + } + determineDataLimits() { + const options = this.options; + const adapter = this._adapter; + const unit = options.time.unit || 'day'; + let {min, max, minDefined, maxDefined} = this.getUserBounds(); + function _applyBounds(bounds) { + if (!minDefined && !isNaN(bounds.min)) { + min = Math.min(min, bounds.min); + } + if (!maxDefined && !isNaN(bounds.max)) { + max = Math.max(max, bounds.max); + } + } + if (!minDefined || !maxDefined) { + _applyBounds(this._getLabelBounds()); + if (options.bounds !== 'ticks' || options.ticks.source !== 'labels') { + _applyBounds(this.getMinMax(false)); + } + } + min = isNumberFinite(min) && !isNaN(min) ? min : +adapter.startOf(Date.now(), unit); + max = isNumberFinite(max) && !isNaN(max) ? max : +adapter.endOf(Date.now(), unit) + 1; + this.min = Math.min(min, max - 1); + this.max = Math.max(min + 1, max); + } + _getLabelBounds() { + const arr = this.getLabelTimestamps(); + let min = Number.POSITIVE_INFINITY; + let max = Number.NEGATIVE_INFINITY; + if (arr.length) { + min = arr[0]; + max = arr[arr.length - 1]; + } + return {min, max}; + } + buildTicks() { + const options = this.options; + const timeOpts = options.time; + const tickOpts = options.ticks; + const timestamps = tickOpts.source === 'labels' ? this.getLabelTimestamps() : this._generate(); + if (options.bounds === 'ticks' && timestamps.length) { + this.min = this._userMin || timestamps[0]; + this.max = this._userMax || timestamps[timestamps.length - 1]; + } + const min = this.min; + const max = this.max; + const ticks = _filterBetween(timestamps, min, max); + this._unit = timeOpts.unit || (tickOpts.autoSkip + ? determineUnitForAutoTicks(timeOpts.minUnit, this.min, this.max, this._getLabelCapacity(min)) + : determineUnitForFormatting(this, ticks.length, timeOpts.minUnit, this.min, this.max)); + this._majorUnit = !tickOpts.major.enabled || this._unit === 'year' ? undefined + : determineMajorUnit(this._unit); + this.initOffsets(timestamps); + if (options.reverse) { + ticks.reverse(); + } + return ticksFromTimestamps(this, ticks, this._majorUnit); + } + initOffsets(timestamps) { + let start = 0; + let end = 0; + let first, last; + if (this.options.offset && timestamps.length) { + first = this.getDecimalForValue(timestamps[0]); + if (timestamps.length === 1) { + start = 1 - first; + } else { + start = (this.getDecimalForValue(timestamps[1]) - first) / 2; + } + last = this.getDecimalForValue(timestamps[timestamps.length - 1]); + if (timestamps.length === 1) { + end = last; + } else { + end = (last - this.getDecimalForValue(timestamps[timestamps.length - 2])) / 2; + } + } + const limit = timestamps.length < 3 ? 0.5 : 0.25; + start = _limitValue(start, 0, limit); + end = _limitValue(end, 0, limit); + this._offsets = {start, end, factor: 1 / (start + 1 + end)}; + } + _generate() { + const adapter = this._adapter; + const min = this.min; + const max = this.max; + const options = this.options; + const timeOpts = options.time; + const minor = timeOpts.unit || determineUnitForAutoTicks(timeOpts.minUnit, min, max, this._getLabelCapacity(min)); + const stepSize = valueOrDefault(timeOpts.stepSize, 1); + const weekday = minor === 'week' ? timeOpts.isoWeekday : false; + const hasWeekday = isNumber(weekday) || weekday === true; + const ticks = {}; + let first = min; + let time, count; + if (hasWeekday) { + first = +adapter.startOf(first, 'isoWeek', weekday); + } + first = +adapter.startOf(first, hasWeekday ? 'day' : minor); + if (adapter.diff(max, min, minor) > 100000 * stepSize) { + throw new Error(min + ' and ' + max + ' are too far apart with stepSize of ' + stepSize + ' ' + minor); + } + const timestamps = options.ticks.source === 'data' && this.getDataTimestamps(); + for (time = first, count = 0; time < max; time = +adapter.add(time, stepSize, minor), count++) { + addTick(ticks, time, timestamps); + } + if (time === max || options.bounds === 'ticks' || count === 1) { + addTick(ticks, time, timestamps); + } + return Object.keys(ticks).sort((a, b) => a - b).map(x => +x); + } + getLabelForValue(value) { + const adapter = this._adapter; + const timeOpts = this.options.time; + if (timeOpts.tooltipFormat) { + return adapter.format(value, timeOpts.tooltipFormat); + } + return adapter.format(value, timeOpts.displayFormats.datetime); + } + _tickFormatFunction(time, index, ticks, format) { + const options = this.options; + const formats = options.time.displayFormats; + const unit = this._unit; + const majorUnit = this._majorUnit; + const minorFormat = unit && formats[unit]; + const majorFormat = majorUnit && formats[majorUnit]; + const tick = ticks[index]; + const major = majorUnit && majorFormat && tick && tick.major; + const label = this._adapter.format(time, format || (major ? majorFormat : minorFormat)); + const formatter = options.ticks.callback; + return formatter ? callback(formatter, [label, index, ticks], this) : label; + } + generateTickLabels(ticks) { + let i, ilen, tick; + for (i = 0, ilen = ticks.length; i < ilen; ++i) { + tick = ticks[i]; + tick.label = this._tickFormatFunction(tick.value, i, ticks); + } + } + getDecimalForValue(value) { + return value === null ? NaN : (value - this.min) / (this.max - this.min); + } + getPixelForValue(value) { + const offsets = this._offsets; + const pos = this.getDecimalForValue(value); + return this.getPixelForDecimal((offsets.start + pos) * offsets.factor); + } + getValueForPixel(pixel) { + const offsets = this._offsets; + const pos = this.getDecimalForPixel(pixel) / offsets.factor - offsets.end; + return this.min + pos * (this.max - this.min); + } + _getLabelSize(label) { + const ticksOpts = this.options.ticks; + const tickLabelWidth = this.ctx.measureText(label).width; + const angle = toRadians(this.isHorizontal() ? ticksOpts.maxRotation : ticksOpts.minRotation); + const cosRotation = Math.cos(angle); + const sinRotation = Math.sin(angle); + const tickFontSize = this._resolveTickFontOptions(0).size; + return { + w: (tickLabelWidth * cosRotation) + (tickFontSize * sinRotation), + h: (tickLabelWidth * sinRotation) + (tickFontSize * cosRotation) + }; + } + _getLabelCapacity(exampleTime) { + const timeOpts = this.options.time; + const displayFormats = timeOpts.displayFormats; + const format = displayFormats[timeOpts.unit] || displayFormats.millisecond; + const exampleLabel = this._tickFormatFunction(exampleTime, 0, ticksFromTimestamps(this, [exampleTime], this._majorUnit), format); + const size = this._getLabelSize(exampleLabel); + const capacity = Math.floor(this.isHorizontal() ? this.width / size.w : this.height / size.h) - 1; + return capacity > 0 ? capacity : 1; + } + getDataTimestamps() { + let timestamps = this._cache.data || []; + let i, ilen; + if (timestamps.length) { + return timestamps; + } + const metas = this.getMatchingVisibleMetas(); + if (this._normalized && metas.length) { + return (this._cache.data = metas[0].controller.getAllParsedValues(this)); + } + for (i = 0, ilen = metas.length; i < ilen; ++i) { + timestamps = timestamps.concat(metas[i].controller.getAllParsedValues(this)); + } + return (this._cache.data = this.normalize(timestamps)); + } + getLabelTimestamps() { + const timestamps = this._cache.labels || []; + let i, ilen; + if (timestamps.length) { + return timestamps; + } + const labels = this.getLabels(); + for (i = 0, ilen = labels.length; i < ilen; ++i) { + timestamps.push(parse(this, labels[i])); + } + return (this._cache.labels = this._normalized ? timestamps : this.normalize(timestamps)); + } + normalize(values) { + return _arrayUnique(values.sort(sorter)); + } +} +TimeScale.id = 'time'; +TimeScale.defaults = { + bounds: 'data', + adapters: {}, + time: { + parser: false, + unit: false, + round: false, + isoWeekday: false, + minUnit: 'millisecond', + displayFormats: {} + }, + ticks: { + source: 'auto', + major: { + enabled: false + } + } +}; + +function interpolate(table, val, reverse) { + let lo = 0; + let hi = table.length - 1; + let prevSource, nextSource, prevTarget, nextTarget; + if (reverse) { + if (val >= table[lo].pos && val <= table[hi].pos) { + ({lo, hi} = _lookupByKey(table, 'pos', val)); + } + ({pos: prevSource, time: prevTarget} = table[lo]); + ({pos: nextSource, time: nextTarget} = table[hi]); + } else { + if (val >= table[lo].time && val <= table[hi].time) { + ({lo, hi} = _lookupByKey(table, 'time', val)); + } + ({time: prevSource, pos: prevTarget} = table[lo]); + ({time: nextSource, pos: nextTarget} = table[hi]); + } + const span = nextSource - prevSource; + return span ? prevTarget + (nextTarget - prevTarget) * (val - prevSource) / span : prevTarget; +} +class TimeSeriesScale extends TimeScale { + constructor(props) { + super(props); + this._table = []; + this._minPos = undefined; + this._tableRange = undefined; + } + initOffsets() { + const timestamps = this._getTimestampsForTable(); + const table = this._table = this.buildLookupTable(timestamps); + this._minPos = interpolate(table, this.min); + this._tableRange = interpolate(table, this.max) - this._minPos; + super.initOffsets(timestamps); + } + buildLookupTable(timestamps) { + const {min, max} = this; + const items = []; + const table = []; + let i, ilen, prev, curr, next; + for (i = 0, ilen = timestamps.length; i < ilen; ++i) { + curr = timestamps[i]; + if (curr >= min && curr <= max) { + items.push(curr); + } + } + if (items.length < 2) { + return [ + {time: min, pos: 0}, + {time: max, pos: 1} + ]; + } + for (i = 0, ilen = items.length; i < ilen; ++i) { + next = items[i + 1]; + prev = items[i - 1]; + curr = items[i]; + if (Math.round((next + prev) / 2) !== curr) { + table.push({time: curr, pos: i / (ilen - 1)}); + } + } + return table; + } + _getTimestampsForTable() { + let timestamps = this._cache.all || []; + if (timestamps.length) { + return timestamps; + } + const data = this.getDataTimestamps(); + const label = this.getLabelTimestamps(); + if (data.length && label.length) { + timestamps = this.normalize(data.concat(label)); + } else { + timestamps = data.length ? data : label; + } + timestamps = this._cache.all = timestamps; + return timestamps; + } + getDecimalForValue(value) { + return (interpolate(this._table, value) - this._minPos) / this._tableRange; + } + getValueForPixel(pixel) { + const offsets = this._offsets; + const decimal = this.getDecimalForPixel(pixel) / offsets.factor - offsets.end; + return interpolate(this._table, decimal * this._tableRange + this._minPos, true); + } +} +TimeSeriesScale.id = 'timeseries'; +TimeSeriesScale.defaults = TimeScale.defaults; + +var scales = /*#__PURE__*/Object.freeze({ +__proto__: null, +CategoryScale: CategoryScale, +LinearScale: LinearScale, +LogarithmicScale: LogarithmicScale, +RadialLinearScale: RadialLinearScale, +TimeScale: TimeScale, +TimeSeriesScale: TimeSeriesScale +}); + +Chart.register(controllers, scales, elements, plugins); +Chart.helpers = {...helpers}; +Chart._adapters = _adapters; +Chart.Animation = Animation; +Chart.Animations = Animations; +Chart.animator = animator; +Chart.controllers = registry.controllers.items; +Chart.DatasetController = DatasetController; +Chart.Element = Element; +Chart.elements = elements; +Chart.Interaction = Interaction; +Chart.layouts = layouts; +Chart.platforms = platforms; +Chart.Scale = Scale; +Chart.Ticks = Ticks; +Object.assign(Chart, controllers, scales, elements, plugins, platforms); +Chart.Chart = Chart; +if (typeof window !== 'undefined') { + window.Chart = Chart; +} + +return Chart; + +})); diff --git a/static/chartjs-adapter-date-fns.bundle.js b/static/chartjs-adapter-date-fns.bundle.js new file mode 100644 index 0000000..f9dbd84 --- /dev/null +++ b/static/chartjs-adapter-date-fns.bundle.js @@ -0,0 +1,6313 @@ +(function (global, factory) { +typeof exports === 'object' && typeof module !== 'undefined' ? factory(require('chart.js')) : +typeof define === 'function' && define.amd ? define(['chart.js'], factory) : +(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.Chart)); +}(this, (function (chart_js) { 'use strict'; + +function toInteger(dirtyNumber) { + if (dirtyNumber === null || dirtyNumber === true || dirtyNumber === false) { + return NaN; + } + + var number = Number(dirtyNumber); + + if (isNaN(number)) { + return number; + } + + return number < 0 ? Math.ceil(number) : Math.floor(number); +} + +function requiredArgs(required, args) { + if (args.length < required) { + throw new TypeError(required + ' argument' + (required > 1 ? 's' : '') + ' required, but only ' + args.length + ' present'); + } +} + +/** + * @name toDate + * @category Common Helpers + * @summary Convert the given argument to an instance of Date. + * + * @description + * Convert the given argument to an instance of Date. + * + * If the argument is an instance of Date, the function returns its clone. + * + * If the argument is a number, it is treated as a timestamp. + * + * If the argument is none of the above, the function returns Invalid Date. + * + * **Note**: *all* Date arguments passed to any *date-fns* function is processed by `toDate`. + * + * @param {Date|Number} argument - the value to convert + * @returns {Date} the parsed date in the local time zone + * @throws {TypeError} 1 argument required + * + * @example + * // Clone the date: + * const result = toDate(new Date(2014, 1, 11, 11, 30, 30)) + * //=> Tue Feb 11 2014 11:30:30 + * + * @example + * // Convert the timestamp to date: + * const result = toDate(1392098430000) + * //=> Tue Feb 11 2014 11:30:30 + */ + +function toDate(argument) { + requiredArgs(1, arguments); + var argStr = Object.prototype.toString.call(argument); // Clone the date + + if (argument instanceof Date || typeof argument === 'object' && argStr === '[object Date]') { + // Prevent the date to lose the milliseconds when passed to new Date() in IE10 + return new Date(argument.getTime()); + } else if (typeof argument === 'number' || argStr === '[object Number]') { + return new Date(argument); + } else { + if ((typeof argument === 'string' || argStr === '[object String]') && typeof console !== 'undefined') { + // eslint-disable-next-line no-console + console.warn("Starting with v2.0.0-beta.1 date-fns doesn't accept strings as date arguments. Please use `parseISO` to parse strings. See: https://git.io/fjule"); // eslint-disable-next-line no-console + + console.warn(new Error().stack); + } + + return new Date(NaN); + } +} + +/** + * @name addDays + * @category Day Helpers + * @summary Add the specified number of days to the given date. + * + * @description + * Add the specified number of days to the given date. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the date to be changed + * @param {Number} amount - the amount of days to be added. Positive decimals will be rounded using `Math.floor`, decimals less than zero will be rounded using `Math.ceil`. + * @returns {Date} the new date with the days added + * @throws {TypeError} 2 arguments required + * + * @example + * // Add 10 days to 1 September 2014: + * const result = addDays(new Date(2014, 8, 1), 10) + * //=> Thu Sep 11 2014 00:00:00 + */ + +function addDays(dirtyDate, dirtyAmount) { + requiredArgs(2, arguments); + var date = toDate(dirtyDate); + var amount = toInteger(dirtyAmount); + + if (isNaN(amount)) { + return new Date(NaN); + } + + if (!amount) { + // If 0 days, no-op to avoid changing times in the hour before end of DST + return date; + } + + date.setDate(date.getDate() + amount); + return date; +} + +/** + * @name addMonths + * @category Month Helpers + * @summary Add the specified number of months to the given date. + * + * @description + * Add the specified number of months to the given date. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the date to be changed + * @param {Number} amount - the amount of months to be added. Positive decimals will be rounded using `Math.floor`, decimals less than zero will be rounded using `Math.ceil`. + * @returns {Date} the new date with the months added + * @throws {TypeError} 2 arguments required + * + * @example + * // Add 5 months to 1 September 2014: + * const result = addMonths(new Date(2014, 8, 1), 5) + * //=> Sun Feb 01 2015 00:00:00 + */ + +function addMonths(dirtyDate, dirtyAmount) { + requiredArgs(2, arguments); + var date = toDate(dirtyDate); + var amount = toInteger(dirtyAmount); + + if (isNaN(amount)) { + return new Date(NaN); + } + + if (!amount) { + // If 0 months, no-op to avoid changing times in the hour before end of DST + return date; + } + + var dayOfMonth = date.getDate(); // The JS Date object supports date math by accepting out-of-bounds values for + // month, day, etc. For example, new Date(2020, 1, 0) returns 31 Dec 2019 and + // new Date(2020, 13, 1) returns 1 Feb 2021. This is *almost* the behavior we + // want except that dates will wrap around the end of a month, meaning that + // new Date(2020, 13, 31) will return 3 Mar 2021 not 28 Feb 2021 as desired. So + // we'll default to the end of the desired month by adding 1 to the desired + // month and using a date of 0 to back up one day to the end of the desired + // month. + + var endOfDesiredMonth = new Date(date.getTime()); + endOfDesiredMonth.setMonth(date.getMonth() + amount + 1, 0); + var daysInMonth = endOfDesiredMonth.getDate(); + + if (dayOfMonth >= daysInMonth) { + // If we're already at the end of the month, then this is the correct date + // and we're done. + return endOfDesiredMonth; + } else { + // Otherwise, we now know that setting the original day-of-month value won't + // cause an overflow, so set the desired day-of-month. Note that we can't + // just set the date of `endOfDesiredMonth` because that object may have had + // its time changed in the unusual case where where a DST transition was on + // the last day of the month and its local time was in the hour skipped or + // repeated next to a DST transition. So we use `date` instead which is + // guaranteed to still have the original time. + date.setFullYear(endOfDesiredMonth.getFullYear(), endOfDesiredMonth.getMonth(), dayOfMonth); + return date; + } +} + +/** + * @name addMilliseconds + * @category Millisecond Helpers + * @summary Add the specified number of milliseconds to the given date. + * + * @description + * Add the specified number of milliseconds to the given date. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the date to be changed + * @param {Number} amount - the amount of milliseconds to be added. Positive decimals will be rounded using `Math.floor`, decimals less than zero will be rounded using `Math.ceil`. + * @returns {Date} the new date with the milliseconds added + * @throws {TypeError} 2 arguments required + * + * @example + * // Add 750 milliseconds to 10 July 2014 12:45:30.000: + * const result = addMilliseconds(new Date(2014, 6, 10, 12, 45, 30, 0), 750) + * //=> Thu Jul 10 2014 12:45:30.750 + */ + +function addMilliseconds(dirtyDate, dirtyAmount) { + requiredArgs(2, arguments); + var timestamp = toDate(dirtyDate).getTime(); + var amount = toInteger(dirtyAmount); + return new Date(timestamp + amount); +} + +var MILLISECONDS_IN_HOUR$3 = 3600000; +/** + * @name addHours + * @category Hour Helpers + * @summary Add the specified number of hours to the given date. + * + * @description + * Add the specified number of hours to the given date. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the date to be changed + * @param {Number} amount - the amount of hours to be added. Positive decimals will be rounded using `Math.floor`, decimals less than zero will be rounded using `Math.ceil`. + * @returns {Date} the new date with the hours added + * @throws {TypeError} 2 arguments required + * + * @example + * // Add 2 hours to 10 July 2014 23:00:00: + * const result = addHours(new Date(2014, 6, 10, 23, 0), 2) + * //=> Fri Jul 11 2014 01:00:00 + */ + +function addHours(dirtyDate, dirtyAmount) { + requiredArgs(2, arguments); + var amount = toInteger(dirtyAmount); + return addMilliseconds(dirtyDate, amount * MILLISECONDS_IN_HOUR$3); +} + +/** + * @name startOfWeek + * @category Week Helpers + * @summary Return the start of a week for the given date. + * + * @description + * Return the start of a week for the given date. + * The result will be in the local timezone. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the original date + * @param {Object} [options] - an object with options. + * @param {Locale} [options.locale=defaultLocale] - the locale object. See [Locale]{@link https://date-fns.org/docs/Locale} + * @param {0|1|2|3|4|5|6} [options.weekStartsOn=0] - the index of the first day of the week (0 - Sunday) + * @returns {Date} the start of a week + * @throws {TypeError} 1 argument required + * @throws {RangeError} `options.weekStartsOn` must be between 0 and 6 + * + * @example + * // The start of a week for 2 September 2014 11:55:00: + * var result = startOfWeek(new Date(2014, 8, 2, 11, 55, 0)) + * //=> Sun Aug 31 2014 00:00:00 + * + * @example + * // If the week starts on Monday, the start of the week for 2 September 2014 11:55:00: + * var result = startOfWeek(new Date(2014, 8, 2, 11, 55, 0), { weekStartsOn: 1 }) + * //=> Mon Sep 01 2014 00:00:00 + */ + +function startOfWeek(dirtyDate, dirtyOptions) { + requiredArgs(1, arguments); + var options = dirtyOptions || {}; + var locale = options.locale; + var localeWeekStartsOn = locale && locale.options && locale.options.weekStartsOn; + var defaultWeekStartsOn = localeWeekStartsOn == null ? 0 : toInteger(localeWeekStartsOn); + var weekStartsOn = options.weekStartsOn == null ? defaultWeekStartsOn : toInteger(options.weekStartsOn); // Test if weekStartsOn is between 0 and 6 _and_ is not NaN + + if (!(weekStartsOn >= 0 && weekStartsOn <= 6)) { + throw new RangeError('weekStartsOn must be between 0 and 6 inclusively'); + } + + var date = toDate(dirtyDate); + var day = date.getDay(); + var diff = (day < weekStartsOn ? 7 : 0) + day - weekStartsOn; + date.setDate(date.getDate() - diff); + date.setHours(0, 0, 0, 0); + return date; +} + +/** + * Google Chrome as of 67.0.3396.87 introduced timezones with offset that includes seconds. + * They usually appear for dates that denote time before the timezones were introduced + * (e.g. for 'Europe/Prague' timezone the offset is GMT+00:57:44 before 1 October 1891 + * and GMT+01:00:00 after that date) + * + * Date#getTimezoneOffset returns the offset in minutes and would return 57 for the example above, + * which would lead to incorrect calculations. + * + * This function returns the timezone offset in milliseconds that takes seconds in account. + */ +function getTimezoneOffsetInMilliseconds(date) { + var utcDate = new Date(Date.UTC(date.getFullYear(), date.getMonth(), date.getDate(), date.getHours(), date.getMinutes(), date.getSeconds(), date.getMilliseconds())); + utcDate.setUTCFullYear(date.getFullYear()); + return date.getTime() - utcDate.getTime(); +} + +/** + * @name startOfDay + * @category Day Helpers + * @summary Return the start of a day for the given date. + * + * @description + * Return the start of a day for the given date. + * The result will be in the local timezone. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the original date + * @returns {Date} the start of a day + * @throws {TypeError} 1 argument required + * + * @example + * // The start of a day for 2 September 2014 11:55:00: + * const result = startOfDay(new Date(2014, 8, 2, 11, 55, 0)) + * //=> Tue Sep 02 2014 00:00:00 + */ + +function startOfDay(dirtyDate) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate); + date.setHours(0, 0, 0, 0); + return date; +} + +var MILLISECONDS_IN_DAY$1 = 86400000; +/** + * @name differenceInCalendarDays + * @category Day Helpers + * @summary Get the number of calendar days between the given dates. + * + * @description + * Get the number of calendar days between the given dates. This means that the times are removed + * from the dates and then the difference in days is calculated. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} dateLeft - the later date + * @param {Date|Number} dateRight - the earlier date + * @returns {Number} the number of calendar days + * @throws {TypeError} 2 arguments required + * + * @example + * // How many calendar days are between + * // 2 July 2011 23:00:00 and 2 July 2012 00:00:00? + * var result = differenceInCalendarDays( + * new Date(2012, 6, 2, 0, 0), + * new Date(2011, 6, 2, 23, 0) + * ) + * //=> 366 + * // How many calendar days are between + * // 2 July 2011 23:59:00 and 3 July 2011 00:01:00? + * var result = differenceInCalendarDays( + * new Date(2011, 6, 3, 0, 1), + * new Date(2011, 6, 2, 23, 59) + * ) + * //=> 1 + */ + +function differenceInCalendarDays(dirtyDateLeft, dirtyDateRight) { + requiredArgs(2, arguments); + var startOfDayLeft = startOfDay(dirtyDateLeft); + var startOfDayRight = startOfDay(dirtyDateRight); + var timestampLeft = startOfDayLeft.getTime() - getTimezoneOffsetInMilliseconds(startOfDayLeft); + var timestampRight = startOfDayRight.getTime() - getTimezoneOffsetInMilliseconds(startOfDayRight); // Round the number of days to the nearest integer + // because the number of milliseconds in a day is not constant + // (e.g. it's different in the day of the daylight saving time clock shift) + + return Math.round((timestampLeft - timestampRight) / MILLISECONDS_IN_DAY$1); +} + +var MILLISECONDS_IN_MINUTE$3 = 60000; +/** + * @name addMinutes + * @category Minute Helpers + * @summary Add the specified number of minutes to the given date. + * + * @description + * Add the specified number of minutes to the given date. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the date to be changed + * @param {Number} amount - the amount of minutes to be added. Positive decimals will be rounded using `Math.floor`, decimals less than zero will be rounded using `Math.ceil`. + * @returns {Date} the new date with the minutes added + * @throws {TypeError} 2 arguments required + * + * @example + * // Add 30 minutes to 10 July 2014 12:00:00: + * const result = addMinutes(new Date(2014, 6, 10, 12, 0), 30) + * //=> Thu Jul 10 2014 12:30:00 + */ + +function addMinutes(dirtyDate, dirtyAmount) { + requiredArgs(2, arguments); + var amount = toInteger(dirtyAmount); + return addMilliseconds(dirtyDate, amount * MILLISECONDS_IN_MINUTE$3); +} + +/** + * @name addQuarters + * @category Quarter Helpers + * @summary Add the specified number of year quarters to the given date. + * + * @description + * Add the specified number of year quarters to the given date. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the date to be changed + * @param {Number} amount - the amount of quarters to be added. Positive decimals will be rounded using `Math.floor`, decimals less than zero will be rounded using `Math.ceil`. + * @returns {Date} the new date with the quarters added + * @throws {TypeError} 2 arguments required + * + * @example + * // Add 1 quarter to 1 September 2014: + * const result = addQuarters(new Date(2014, 8, 1), 1) + * //=> Mon Dec 01 2014 00:00:00 + */ + +function addQuarters(dirtyDate, dirtyAmount) { + requiredArgs(2, arguments); + var amount = toInteger(dirtyAmount); + var months = amount * 3; + return addMonths(dirtyDate, months); +} + +/** + * @name addSeconds + * @category Second Helpers + * @summary Add the specified number of seconds to the given date. + * + * @description + * Add the specified number of seconds to the given date. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the date to be changed + * @param {Number} amount - the amount of seconds to be added. Positive decimals will be rounded using `Math.floor`, decimals less than zero will be rounded using `Math.ceil`. + * @returns {Date} the new date with the seconds added + * @throws {TypeError} 2 arguments required + * + * @example + * // Add 30 seconds to 10 July 2014 12:45:00: + * const result = addSeconds(new Date(2014, 6, 10, 12, 45, 0), 30) + * //=> Thu Jul 10 2014 12:45:30 + */ + +function addSeconds(dirtyDate, dirtyAmount) { + requiredArgs(2, arguments); + var amount = toInteger(dirtyAmount); + return addMilliseconds(dirtyDate, amount * 1000); +} + +/** + * @name addWeeks + * @category Week Helpers + * @summary Add the specified number of weeks to the given date. + * + * @description + * Add the specified number of week to the given date. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the date to be changed + * @param {Number} amount - the amount of weeks to be added. Positive decimals will be rounded using `Math.floor`, decimals less than zero will be rounded using `Math.ceil`. + * @returns {Date} the new date with the weeks added + * @throws {TypeError} 2 arguments required + * + * @example + * // Add 4 weeks to 1 September 2014: + * const result = addWeeks(new Date(2014, 8, 1), 4) + * //=> Mon Sep 29 2014 00:00:00 + */ + +function addWeeks(dirtyDate, dirtyAmount) { + requiredArgs(2, arguments); + var amount = toInteger(dirtyAmount); + var days = amount * 7; + return addDays(dirtyDate, days); +} + +/** + * @name addYears + * @category Year Helpers + * @summary Add the specified number of years to the given date. + * + * @description + * Add the specified number of years to the given date. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the date to be changed + * @param {Number} amount - the amount of years to be added. Positive decimals will be rounded using `Math.floor`, decimals less than zero will be rounded using `Math.ceil`. + * @returns {Date} the new date with the years added + * @throws {TypeError} 2 arguments required + * + * @example + * // Add 5 years to 1 September 2014: + * const result = addYears(new Date(2014, 8, 1), 5) + * //=> Sun Sep 01 2019 00:00:00 + */ + +function addYears(dirtyDate, dirtyAmount) { + requiredArgs(2, arguments); + var amount = toInteger(dirtyAmount); + return addMonths(dirtyDate, amount * 12); +} + +/** + * @name compareAsc + * @category Common Helpers + * @summary Compare the two dates and return -1, 0 or 1. + * + * @description + * Compare the two dates and return 1 if the first date is after the second, + * -1 if the first date is before the second or 0 if dates are equal. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} dateLeft - the first date to compare + * @param {Date|Number} dateRight - the second date to compare + * @returns {Number} the result of the comparison + * @throws {TypeError} 2 arguments required + * + * @example + * // Compare 11 February 1987 and 10 July 1989: + * const result = compareAsc(new Date(1987, 1, 11), new Date(1989, 6, 10)) + * //=> -1 + * + * @example + * // Sort the array of dates: + * const result = [ + * new Date(1995, 6, 2), + * new Date(1987, 1, 11), + * new Date(1989, 6, 10) + * ].sort(compareAsc) + * //=> [ + * // Wed Feb 11 1987 00:00:00, + * // Mon Jul 10 1989 00:00:00, + * // Sun Jul 02 1995 00:00:00 + * // ] + */ + +function compareAsc(dirtyDateLeft, dirtyDateRight) { + requiredArgs(2, arguments); + var dateLeft = toDate(dirtyDateLeft); + var dateRight = toDate(dirtyDateRight); + var diff = dateLeft.getTime() - dateRight.getTime(); + + if (diff < 0) { + return -1; + } else if (diff > 0) { + return 1; // Return 0 if diff is 0; return NaN if diff is NaN + } else { + return diff; + } +} + +/** + * @name isValid + * @category Common Helpers + * @summary Is the given date valid? + * + * @description + * Returns false if argument is Invalid Date and true otherwise. + * Argument is converted to Date using `toDate`. See [toDate]{@link https://date-fns.org/docs/toDate} + * Invalid Date is a Date, whose time value is NaN. + * + * Time value of Date: http://es5.github.io/#x15.9.1.1 + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * - Now `isValid` doesn't throw an exception + * if the first argument is not an instance of Date. + * Instead, argument is converted beforehand using `toDate`. + * + * Examples: + * + * | `isValid` argument | Before v2.0.0 | v2.0.0 onward | + * |---------------------------|---------------|---------------| + * | `new Date()` | `true` | `true` | + * | `new Date('2016-01-01')` | `true` | `true` | + * | `new Date('')` | `false` | `false` | + * | `new Date(1488370835081)` | `true` | `true` | + * | `new Date(NaN)` | `false` | `false` | + * | `'2016-01-01'` | `TypeError` | `false` | + * | `''` | `TypeError` | `false` | + * | `1488370835081` | `TypeError` | `true` | + * | `NaN` | `TypeError` | `false` | + * + * We introduce this change to make *date-fns* consistent with ECMAScript behavior + * that try to coerce arguments to the expected type + * (which is also the case with other *date-fns* functions). + * + * @param {*} date - the date to check + * @returns {Boolean} the date is valid + * @throws {TypeError} 1 argument required + * + * @example + * // For the valid date: + * var result = isValid(new Date(2014, 1, 31)) + * //=> true + * + * @example + * // For the value, convertable into a date: + * var result = isValid(1393804800000) + * //=> true + * + * @example + * // For the invalid date: + * var result = isValid(new Date('')) + * //=> false + */ + +function isValid(dirtyDate) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate); + return !isNaN(date); +} + +/** + * @name differenceInCalendarMonths + * @category Month Helpers + * @summary Get the number of calendar months between the given dates. + * + * @description + * Get the number of calendar months between the given dates. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} dateLeft - the later date + * @param {Date|Number} dateRight - the earlier date + * @returns {Number} the number of calendar months + * @throws {TypeError} 2 arguments required + * + * @example + * // How many calendar months are between 31 January 2014 and 1 September 2014? + * var result = differenceInCalendarMonths( + * new Date(2014, 8, 1), + * new Date(2014, 0, 31) + * ) + * //=> 8 + */ + +function differenceInCalendarMonths(dirtyDateLeft, dirtyDateRight) { + requiredArgs(2, arguments); + var dateLeft = toDate(dirtyDateLeft); + var dateRight = toDate(dirtyDateRight); + var yearDiff = dateLeft.getFullYear() - dateRight.getFullYear(); + var monthDiff = dateLeft.getMonth() - dateRight.getMonth(); + return yearDiff * 12 + monthDiff; +} + +/** + * @name differenceInCalendarYears + * @category Year Helpers + * @summary Get the number of calendar years between the given dates. + * + * @description + * Get the number of calendar years between the given dates. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} dateLeft - the later date + * @param {Date|Number} dateRight - the earlier date + * @returns {Number} the number of calendar years + * @throws {TypeError} 2 arguments required + * + * @example + * // How many calendar years are between 31 December 2013 and 11 February 2015? + * var result = differenceInCalendarYears( + * new Date(2015, 1, 11), + * new Date(2013, 11, 31) + * ) + * //=> 2 + */ + +function differenceInCalendarYears(dirtyDateLeft, dirtyDateRight) { + requiredArgs(2, arguments); + var dateLeft = toDate(dirtyDateLeft); + var dateRight = toDate(dirtyDateRight); + return dateLeft.getFullYear() - dateRight.getFullYear(); +} + +// for accurate equality comparisons of UTC timestamps that end up +// having the same representation in local time, e.g. one hour before +// DST ends vs. the instant that DST ends. + +function compareLocalAsc(dateLeft, dateRight) { + var diff = dateLeft.getFullYear() - dateRight.getFullYear() || dateLeft.getMonth() - dateRight.getMonth() || dateLeft.getDate() - dateRight.getDate() || dateLeft.getHours() - dateRight.getHours() || dateLeft.getMinutes() - dateRight.getMinutes() || dateLeft.getSeconds() - dateRight.getSeconds() || dateLeft.getMilliseconds() - dateRight.getMilliseconds(); + + if (diff < 0) { + return -1; + } else if (diff > 0) { + return 1; // Return 0 if diff is 0; return NaN if diff is NaN + } else { + return diff; + } +} +/** + * @name differenceInDays + * @category Day Helpers + * @summary Get the number of full days between the given dates. + * + * @description + * Get the number of full day periods between two dates. Fractional days are + * truncated towards zero. + * + * One "full day" is the distance between a local time in one day to the same + * local time on the next or previous day. A full day can sometimes be less than + * or more than 24 hours if a daylight savings change happens between two dates. + * + * To ignore DST and only measure exact 24-hour periods, use this instead: + * `Math.floor(differenceInHours(dateLeft, dateRight)/24)|0`. + * + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} dateLeft - the later date + * @param {Date|Number} dateRight - the earlier date + * @returns {Number} the number of full days according to the local timezone + * @throws {TypeError} 2 arguments required + * + * @example + * // How many full days are between + * // 2 July 2011 23:00:00 and 2 July 2012 00:00:00? + * var result = differenceInDays( + * new Date(2012, 6, 2, 0, 0), + * new Date(2011, 6, 2, 23, 0) + * ) + * //=> 365 + * // How many full days are between + * // 2 July 2011 23:59:00 and 3 July 2011 00:01:00? + * var result = differenceInDays( + * new Date(2011, 6, 3, 0, 1), + * new Date(2011, 6, 2, 23, 59) + * ) + * //=> 0 + * // How many full days are between + * // 1 March 2020 0:00 and 1 June 2020 0:00 ? + * // Note: because local time is used, the + * // result will always be 92 days, even in + * // time zones where DST starts and the + * // period has only 92*24-1 hours. + * var result = differenceInDays( + * new Date(2020, 5, 1), + * new Date(2020, 2, 1) + * ) +//=> 92 + */ + + +function differenceInDays(dirtyDateLeft, dirtyDateRight) { + requiredArgs(2, arguments); + var dateLeft = toDate(dirtyDateLeft); + var dateRight = toDate(dirtyDateRight); + var sign = compareLocalAsc(dateLeft, dateRight); + var difference = Math.abs(differenceInCalendarDays(dateLeft, dateRight)); + dateLeft.setDate(dateLeft.getDate() - sign * difference); // Math.abs(diff in full days - diff in calendar days) === 1 if last calendar day is not full + // If so, result must be decreased by 1 in absolute value + + var isLastDayNotFull = compareLocalAsc(dateLeft, dateRight) === -sign; + var result = sign * (difference - isLastDayNotFull); // Prevent negative zero + + return result === 0 ? 0 : result; +} + +/** + * @name differenceInMilliseconds + * @category Millisecond Helpers + * @summary Get the number of milliseconds between the given dates. + * + * @description + * Get the number of milliseconds between the given dates. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} dateLeft - the later date + * @param {Date|Number} dateRight - the earlier date + * @returns {Number} the number of milliseconds + * @throws {TypeError} 2 arguments required + * + * @example + * // How many milliseconds are between + * // 2 July 2014 12:30:20.600 and 2 July 2014 12:30:21.700? + * var result = differenceInMilliseconds( + * new Date(2014, 6, 2, 12, 30, 21, 700), + * new Date(2014, 6, 2, 12, 30, 20, 600) + * ) + * //=> 1100 + */ + +function differenceInMilliseconds(dirtyDateLeft, dirtyDateRight) { + requiredArgs(2, arguments); + var dateLeft = toDate(dirtyDateLeft); + var dateRight = toDate(dirtyDateRight); + return dateLeft.getTime() - dateRight.getTime(); +} + +var MILLISECONDS_IN_HOUR$2 = 3600000; +/** + * @name differenceInHours + * @category Hour Helpers + * @summary Get the number of hours between the given dates. + * + * @description + * Get the number of hours between the given dates. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} dateLeft - the later date + * @param {Date|Number} dateRight - the earlier date + * @returns {Number} the number of hours + * @throws {TypeError} 2 arguments required + * + * @example + * // How many hours are between 2 July 2014 06:50:00 and 2 July 2014 19:00:00? + * var result = differenceInHours( + * new Date(2014, 6, 2, 19, 0), + * new Date(2014, 6, 2, 6, 50) + * ) + * //=> 12 + */ + +function differenceInHours(dirtyDateLeft, dirtyDateRight) { + requiredArgs(2, arguments); + var diff = differenceInMilliseconds(dirtyDateLeft, dirtyDateRight) / MILLISECONDS_IN_HOUR$2; + return diff > 0 ? Math.floor(diff) : Math.ceil(diff); +} + +var MILLISECONDS_IN_MINUTE$2 = 60000; +/** + * @name differenceInMinutes + * @category Minute Helpers + * @summary Get the number of minutes between the given dates. + * + * @description + * Get the signed number of full (rounded towards 0) minutes between the given dates. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} dateLeft - the later date + * @param {Date|Number} dateRight - the earlier date + * @returns {Number} the number of minutes + * @throws {TypeError} 2 arguments required + * + * @example + * // How many minutes are between 2 July 2014 12:07:59 and 2 July 2014 12:20:00? + * var result = differenceInMinutes( + * new Date(2014, 6, 2, 12, 20, 0), + * new Date(2014, 6, 2, 12, 7, 59) + * ) + * //=> 12 + * + * @example + * // How many minutes are from 10:01:59 to 10:00:00 + * var result = differenceInMinutes( + * new Date(2000, 0, 1, 10, 0, 0), + * new Date(2000, 0, 1, 10, 1, 59) + * ) + * //=> -1 + */ + +function differenceInMinutes(dirtyDateLeft, dirtyDateRight) { + requiredArgs(2, arguments); + var diff = differenceInMilliseconds(dirtyDateLeft, dirtyDateRight) / MILLISECONDS_IN_MINUTE$2; + return diff > 0 ? Math.floor(diff) : Math.ceil(diff); +} + +/** + * @name endOfDay + * @category Day Helpers + * @summary Return the end of a day for the given date. + * + * @description + * Return the end of a day for the given date. + * The result will be in the local timezone. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the original date + * @returns {Date} the end of a day + * @throws {TypeError} 1 argument required + * + * @example + * // The end of a day for 2 September 2014 11:55:00: + * const result = endOfDay(new Date(2014, 8, 2, 11, 55, 0)) + * //=> Tue Sep 02 2014 23:59:59.999 + */ + +function endOfDay(dirtyDate) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate); + date.setHours(23, 59, 59, 999); + return date; +} + +/** + * @name endOfMonth + * @category Month Helpers + * @summary Return the end of a month for the given date. + * + * @description + * Return the end of a month for the given date. + * The result will be in the local timezone. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the original date + * @returns {Date} the end of a month + * @throws {TypeError} 1 argument required + * + * @example + * // The end of a month for 2 September 2014 11:55:00: + * const result = endOfMonth(new Date(2014, 8, 2, 11, 55, 0)) + * //=> Tue Sep 30 2014 23:59:59.999 + */ + +function endOfMonth(dirtyDate) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate); + var month = date.getMonth(); + date.setFullYear(date.getFullYear(), month + 1, 0); + date.setHours(23, 59, 59, 999); + return date; +} + +/** + * @name isLastDayOfMonth + * @category Month Helpers + * @summary Is the given date the last day of a month? + * + * @description + * Is the given date the last day of a month? + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the date to check + * @returns {Boolean} the date is the last day of a month + * @throws {TypeError} 1 argument required + * + * @example + * // Is 28 February 2014 the last day of a month? + * var result = isLastDayOfMonth(new Date(2014, 1, 28)) + * //=> true + */ + +function isLastDayOfMonth(dirtyDate) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate); + return endOfDay(date).getTime() === endOfMonth(date).getTime(); +} + +/** + * @name differenceInMonths + * @category Month Helpers + * @summary Get the number of full months between the given dates. + * + * @description + * Get the number of full months between the given dates. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} dateLeft - the later date + * @param {Date|Number} dateRight - the earlier date + * @returns {Number} the number of full months + * @throws {TypeError} 2 arguments required + * + * @example + * // How many full months are between 31 January 2014 and 1 September 2014? + * var result = differenceInMonths(new Date(2014, 8, 1), new Date(2014, 0, 31)) + * //=> 7 + */ + +function differenceInMonths(dirtyDateLeft, dirtyDateRight) { + requiredArgs(2, arguments); + var dateLeft = toDate(dirtyDateLeft); + var dateRight = toDate(dirtyDateRight); + var sign = compareAsc(dateLeft, dateRight); + var difference = Math.abs(differenceInCalendarMonths(dateLeft, dateRight)); + var result; // Check for the difference of less than month + + if (difference < 1) { + result = 0; + } else { + if (dateLeft.getMonth() === 1 && dateLeft.getDate() > 27) { + // This will check if the date is end of Feb and assign a higher end of month date + // to compare it with Jan + dateLeft.setDate(30); + } + + dateLeft.setMonth(dateLeft.getMonth() - sign * difference); // Math.abs(diff in full months - diff in calendar months) === 1 if last calendar month is not full + // If so, result must be decreased by 1 in absolute value + + var isLastMonthNotFull = compareAsc(dateLeft, dateRight) === -sign; // Check for cases of one full calendar month + + if (isLastDayOfMonth(toDate(dirtyDateLeft)) && difference === 1 && compareAsc(dirtyDateLeft, dateRight) === 1) { + isLastMonthNotFull = false; + } + + result = sign * (difference - isLastMonthNotFull); + } // Prevent negative zero + + + return result === 0 ? 0 : result; +} + +/** + * @name differenceInQuarters + * @category Quarter Helpers + * @summary Get the number of full quarters between the given dates. + * + * @description + * Get the number of full quarters between the given dates. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} dateLeft - the later date + * @param {Date|Number} dateRight - the earlier date + * @returns {Number} the number of full quarters + * @throws {TypeError} 2 arguments required + * + * @example + * // How many full quarters are between 31 December 2013 and 2 July 2014? + * var result = differenceInQuarters(new Date(2014, 6, 2), new Date(2013, 11, 31)) + * //=> 2 + */ + +function differenceInQuarters(dirtyDateLeft, dirtyDateRight) { + requiredArgs(2, arguments); + var diff = differenceInMonths(dirtyDateLeft, dirtyDateRight) / 3; + return diff > 0 ? Math.floor(diff) : Math.ceil(diff); +} + +/** + * @name differenceInSeconds + * @category Second Helpers + * @summary Get the number of seconds between the given dates. + * + * @description + * Get the number of seconds between the given dates. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} dateLeft - the later date + * @param {Date|Number} dateRight - the earlier date + * @returns {Number} the number of seconds + * @throws {TypeError} 2 arguments required + * + * @example + * // How many seconds are between + * // 2 July 2014 12:30:07.999 and 2 July 2014 12:30:20.000? + * var result = differenceInSeconds( + * new Date(2014, 6, 2, 12, 30, 20, 0), + * new Date(2014, 6, 2, 12, 30, 7, 999) + * ) + * //=> 12 + */ + +function differenceInSeconds(dirtyDateLeft, dirtyDateRight) { + requiredArgs(2, arguments); + var diff = differenceInMilliseconds(dirtyDateLeft, dirtyDateRight) / 1000; + return diff > 0 ? Math.floor(diff) : Math.ceil(diff); +} + +/** + * @name differenceInWeeks + * @category Week Helpers + * @summary Get the number of full weeks between the given dates. + * + * @description + * Get the number of full weeks between two dates. Fractional weeks are + * truncated towards zero. + * + * One "full week" is the distance between a local time in one day to the same + * local time 7 days earlier or later. A full week can sometimes be less than + * or more than 7*24 hours if a daylight savings change happens between two dates. + * + * To ignore DST and only measure exact 7*24-hour periods, use this instead: + * `Math.floor(differenceInHours(dateLeft, dateRight)/(7*24))|0`. + * + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} dateLeft - the later date + * @param {Date|Number} dateRight - the earlier date + * @returns {Number} the number of full weeks + * @throws {TypeError} 2 arguments required + * + * @example + * // How many full weeks are between 5 July 2014 and 20 July 2014? + * var result = differenceInWeeks(new Date(2014, 6, 20), new Date(2014, 6, 5)) + * //=> 2 + * + * // How many full weeks are between + * // 1 March 2020 0:00 and 6 June 2020 0:00 ? + * // Note: because local time is used, the + * // result will always be 8 weeks (54 days), + * // even if DST starts and the period has + * // only 54*24-1 hours. + * var result = differenceInWeeks( + * new Date(2020, 5, 1), + * new Date(2020, 2, 6) + * ) + * //=> 8 + */ + +function differenceInWeeks(dirtyDateLeft, dirtyDateRight) { + requiredArgs(2, arguments); + var diff = differenceInDays(dirtyDateLeft, dirtyDateRight) / 7; + return diff > 0 ? Math.floor(diff) : Math.ceil(diff); +} + +/** + * @name differenceInYears + * @category Year Helpers + * @summary Get the number of full years between the given dates. + * + * @description + * Get the number of full years between the given dates. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} dateLeft - the later date + * @param {Date|Number} dateRight - the earlier date + * @returns {Number} the number of full years + * @throws {TypeError} 2 arguments required + * + * @example + * // How many full years are between 31 December 2013 and 11 February 2015? + * var result = differenceInYears(new Date(2015, 1, 11), new Date(2013, 11, 31)) + * //=> 1 + */ + +function differenceInYears(dirtyDateLeft, dirtyDateRight) { + requiredArgs(2, arguments); + var dateLeft = toDate(dirtyDateLeft); + var dateRight = toDate(dirtyDateRight); + var sign = compareAsc(dateLeft, dateRight); + var difference = Math.abs(differenceInCalendarYears(dateLeft, dateRight)); // Set both dates to a valid leap year for accurate comparison when dealing + // with leap days + + dateLeft.setFullYear('1584'); + dateRight.setFullYear('1584'); // Math.abs(diff in full years - diff in calendar years) === 1 if last calendar year is not full + // If so, result must be decreased by 1 in absolute value + + var isLastYearNotFull = compareAsc(dateLeft, dateRight) === -sign; + var result = sign * (difference - isLastYearNotFull); // Prevent negative zero + + return result === 0 ? 0 : result; +} + +/** + * @name startOfQuarter + * @category Quarter Helpers + * @summary Return the start of a year quarter for the given date. + * + * @description + * Return the start of a year quarter for the given date. + * The result will be in the local timezone. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the original date + * @returns {Date} the start of a quarter + * @throws {TypeError} 1 argument required + * + * @example + * // The start of a quarter for 2 September 2014 11:55:00: + * const result = startOfQuarter(new Date(2014, 8, 2, 11, 55, 0)) + * //=> Tue Jul 01 2014 00:00:00 + */ + +function startOfQuarter(dirtyDate) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate); + var currentMonth = date.getMonth(); + var month = currentMonth - currentMonth % 3; + date.setMonth(month, 1); + date.setHours(0, 0, 0, 0); + return date; +} + +/** + * @name startOfMonth + * @category Month Helpers + * @summary Return the start of a month for the given date. + * + * @description + * Return the start of a month for the given date. + * The result will be in the local timezone. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the original date + * @returns {Date} the start of a month + * @throws {TypeError} 1 argument required + * + * @example + * // The start of a month for 2 September 2014 11:55:00: + * const result = startOfMonth(new Date(2014, 8, 2, 11, 55, 0)) + * //=> Mon Sep 01 2014 00:00:00 + */ + +function startOfMonth(dirtyDate) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate); + date.setDate(1); + date.setHours(0, 0, 0, 0); + return date; +} + +/** + * @name startOfYear + * @category Year Helpers + * @summary Return the start of a year for the given date. + * + * @description + * Return the start of a year for the given date. + * The result will be in the local timezone. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the original date + * @returns {Date} the start of a year + * @throws {TypeError} 1 argument required + * + * @example + * // The start of a year for 2 September 2014 11:55:00: + * const result = startOfYear(new Date(2014, 8, 2, 11, 55, 00)) + * //=> Wed Jan 01 2014 00:00:00 + */ + +function startOfYear(dirtyDate) { + requiredArgs(1, arguments); + var cleanDate = toDate(dirtyDate); + var date = new Date(0); + date.setFullYear(cleanDate.getFullYear(), 0, 1); + date.setHours(0, 0, 0, 0); + return date; +} + +/** + * @name endOfYear + * @category Year Helpers + * @summary Return the end of a year for the given date. + * + * @description + * Return the end of a year for the given date. + * The result will be in the local timezone. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the original date + * @returns {Date} the end of a year + * @throws {TypeError} 1 argument required + * + * @example + * // The end of a year for 2 September 2014 11:55:00: + * var result = endOfYear(new Date(2014, 8, 2, 11, 55, 00)) + * //=> Wed Dec 31 2014 23:59:59.999 + */ + +function endOfYear(dirtyDate) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate); + var year = date.getFullYear(); + date.setFullYear(year + 1, 0, 0); + date.setHours(23, 59, 59, 999); + return date; +} + +/** + * @name endOfHour + * @category Hour Helpers + * @summary Return the end of an hour for the given date. + * + * @description + * Return the end of an hour for the given date. + * The result will be in the local timezone. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the original date + * @returns {Date} the end of an hour + * @throws {TypeError} 1 argument required + * + * @example + * // The end of an hour for 2 September 2014 11:55:00: + * const result = endOfHour(new Date(2014, 8, 2, 11, 55)) + * //=> Tue Sep 02 2014 11:59:59.999 + */ + +function endOfHour(dirtyDate) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate); + date.setMinutes(59, 59, 999); + return date; +} + +/** + * @name endOfWeek + * @category Week Helpers + * @summary Return the end of a week for the given date. + * + * @description + * Return the end of a week for the given date. + * The result will be in the local timezone. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the original date + * @param {Object} [options] - an object with options. + * @param {Locale} [options.locale=defaultLocale] - the locale object. See [Locale]{@link https://date-fns.org/docs/Locale} + * @param {0|1|2|3|4|5|6} [options.weekStartsOn=0] - the index of the first day of the week (0 - Sunday) + * @returns {Date} the end of a week + * @throws {TypeError} 1 argument required + * @throws {RangeError} `options.weekStartsOn` must be between 0 and 6 + * + * @example + * // The end of a week for 2 September 2014 11:55:00: + * const result = endOfWeek(new Date(2014, 8, 2, 11, 55, 0)) + * //=> Sat Sep 06 2014 23:59:59.999 + * + * @example + * // If the week starts on Monday, the end of the week for 2 September 2014 11:55:00: + * const result = endOfWeek(new Date(2014, 8, 2, 11, 55, 0), { weekStartsOn: 1 }) + * //=> Sun Sep 07 2014 23:59:59.999 + */ +function endOfWeek(dirtyDate, dirtyOptions) { + requiredArgs(1, arguments); + var options = dirtyOptions || {}; + var locale = options.locale; + var localeWeekStartsOn = locale && locale.options && locale.options.weekStartsOn; + var defaultWeekStartsOn = localeWeekStartsOn == null ? 0 : toInteger(localeWeekStartsOn); + var weekStartsOn = options.weekStartsOn == null ? defaultWeekStartsOn : toInteger(options.weekStartsOn); // Test if weekStartsOn is between 0 and 6 _and_ is not NaN + + if (!(weekStartsOn >= 0 && weekStartsOn <= 6)) { + throw new RangeError('weekStartsOn must be between 0 and 6 inclusively'); + } + + var date = toDate(dirtyDate); + var day = date.getDay(); + var diff = (day < weekStartsOn ? -7 : 0) + 6 - (day - weekStartsOn); + date.setDate(date.getDate() + diff); + date.setHours(23, 59, 59, 999); + return date; +} + +/** + * @name endOfMinute + * @category Minute Helpers + * @summary Return the end of a minute for the given date. + * + * @description + * Return the end of a minute for the given date. + * The result will be in the local timezone. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the original date + * @returns {Date} the end of a minute + * @throws {TypeError} 1 argument required + * + * @example + * // The end of a minute for 1 December 2014 22:15:45.400: + * const result = endOfMinute(new Date(2014, 11, 1, 22, 15, 45, 400)) + * //=> Mon Dec 01 2014 22:15:59.999 + */ + +function endOfMinute(dirtyDate) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate); + date.setSeconds(59, 999); + return date; +} + +/** + * @name endOfQuarter + * @category Quarter Helpers + * @summary Return the end of a year quarter for the given date. + * + * @description + * Return the end of a year quarter for the given date. + * The result will be in the local timezone. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the original date + * @returns {Date} the end of a quarter + * @throws {TypeError} 1 argument required + * + * @example + * // The end of a quarter for 2 September 2014 11:55:00: + * const result = endOfQuarter(new Date(2014, 8, 2, 11, 55, 0)) + * //=> Tue Sep 30 2014 23:59:59.999 + */ + +function endOfQuarter(dirtyDate) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate); + var currentMonth = date.getMonth(); + var month = currentMonth - currentMonth % 3 + 3; + date.setMonth(month, 0); + date.setHours(23, 59, 59, 999); + return date; +} + +/** + * @name endOfSecond + * @category Second Helpers + * @summary Return the end of a second for the given date. + * + * @description + * Return the end of a second for the given date. + * The result will be in the local timezone. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the original date + * @returns {Date} the end of a second + * @throws {TypeError} 1 argument required + * + * @example + * // The end of a second for 1 December 2014 22:15:45.400: + * const result = endOfSecond(new Date(2014, 11, 1, 22, 15, 45, 400)) + * //=> Mon Dec 01 2014 22:15:45.999 + */ + +function endOfSecond(dirtyDate) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate); + date.setMilliseconds(999); + return date; +} + +var formatDistanceLocale = { + lessThanXSeconds: { + one: 'less than a second', + other: 'less than {{count}} seconds' + }, + xSeconds: { + one: '1 second', + other: '{{count}} seconds' + }, + halfAMinute: 'half a minute', + lessThanXMinutes: { + one: 'less than a minute', + other: 'less than {{count}} minutes' + }, + xMinutes: { + one: '1 minute', + other: '{{count}} minutes' + }, + aboutXHours: { + one: 'about 1 hour', + other: 'about {{count}} hours' + }, + xHours: { + one: '1 hour', + other: '{{count}} hours' + }, + xDays: { + one: '1 day', + other: '{{count}} days' + }, + aboutXWeeks: { + one: 'about 1 week', + other: 'about {{count}} weeks' + }, + xWeeks: { + one: '1 week', + other: '{{count}} weeks' + }, + aboutXMonths: { + one: 'about 1 month', + other: 'about {{count}} months' + }, + xMonths: { + one: '1 month', + other: '{{count}} months' + }, + aboutXYears: { + one: 'about 1 year', + other: 'about {{count}} years' + }, + xYears: { + one: '1 year', + other: '{{count}} years' + }, + overXYears: { + one: 'over 1 year', + other: 'over {{count}} years' + }, + almostXYears: { + one: 'almost 1 year', + other: 'almost {{count}} years' + } +}; +function formatDistance(token, count, options) { + options = options || {}; + var result; + + if (typeof formatDistanceLocale[token] === 'string') { + result = formatDistanceLocale[token]; + } else if (count === 1) { + result = formatDistanceLocale[token].one; + } else { + result = formatDistanceLocale[token].other.replace('{{count}}', count); + } + + if (options.addSuffix) { + if (options.comparison > 0) { + return 'in ' + result; + } else { + return result + ' ago'; + } + } + + return result; +} + +function buildFormatLongFn(args) { + return function (dirtyOptions) { + var options = dirtyOptions || {}; + var width = options.width ? String(options.width) : args.defaultWidth; + var format = args.formats[width] || args.formats[args.defaultWidth]; + return format; + }; +} + +var dateFormats = { + full: 'EEEE, MMMM do, y', + long: 'MMMM do, y', + medium: 'MMM d, y', + short: 'MM/dd/yyyy' +}; +var timeFormats = { + full: 'h:mm:ss a zzzz', + long: 'h:mm:ss a z', + medium: 'h:mm:ss a', + short: 'h:mm a' +}; +var dateTimeFormats = { + full: "{{date}} 'at' {{time}}", + long: "{{date}} 'at' {{time}}", + medium: '{{date}}, {{time}}', + short: '{{date}}, {{time}}' +}; +var formatLong = { + date: buildFormatLongFn({ + formats: dateFormats, + defaultWidth: 'full' + }), + time: buildFormatLongFn({ + formats: timeFormats, + defaultWidth: 'full' + }), + dateTime: buildFormatLongFn({ + formats: dateTimeFormats, + defaultWidth: 'full' + }) +}; + +var formatRelativeLocale = { + lastWeek: "'last' eeee 'at' p", + yesterday: "'yesterday at' p", + today: "'today at' p", + tomorrow: "'tomorrow at' p", + nextWeek: "eeee 'at' p", + other: 'P' +}; +function formatRelative(token, _date, _baseDate, _options) { + return formatRelativeLocale[token]; +} + +function buildLocalizeFn(args) { + return function (dirtyIndex, dirtyOptions) { + var options = dirtyOptions || {}; + var context = options.context ? String(options.context) : 'standalone'; + var valuesArray; + + if (context === 'formatting' && args.formattingValues) { + var defaultWidth = args.defaultFormattingWidth || args.defaultWidth; + var width = options.width ? String(options.width) : defaultWidth; + valuesArray = args.formattingValues[width] || args.formattingValues[defaultWidth]; + } else { + var _defaultWidth = args.defaultWidth; + + var _width = options.width ? String(options.width) : args.defaultWidth; + + valuesArray = args.values[_width] || args.values[_defaultWidth]; + } + + var index = args.argumentCallback ? args.argumentCallback(dirtyIndex) : dirtyIndex; + return valuesArray[index]; + }; +} + +var eraValues = { + narrow: ['B', 'A'], + abbreviated: ['BC', 'AD'], + wide: ['Before Christ', 'Anno Domini'] +}; +var quarterValues = { + narrow: ['1', '2', '3', '4'], + abbreviated: ['Q1', 'Q2', 'Q3', 'Q4'], + wide: ['1st quarter', '2nd quarter', '3rd quarter', '4th quarter'] // Note: in English, the names of days of the week and months are capitalized. + // If you are making a new locale based on this one, check if the same is true for the language you're working on. + // Generally, formatted dates should look like they are in the middle of a sentence, + // e.g. in Spanish language the weekdays and months should be in the lowercase. + +}; +var monthValues = { + narrow: ['J', 'F', 'M', 'A', 'M', 'J', 'J', 'A', 'S', 'O', 'N', 'D'], + abbreviated: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'], + wide: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'] +}; +var dayValues = { + narrow: ['S', 'M', 'T', 'W', 'T', 'F', 'S'], + short: ['Su', 'Mo', 'Tu', 'We', 'Th', 'Fr', 'Sa'], + abbreviated: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'], + wide: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'] +}; +var dayPeriodValues = { + narrow: { + am: 'a', + pm: 'p', + midnight: 'mi', + noon: 'n', + morning: 'morning', + afternoon: 'afternoon', + evening: 'evening', + night: 'night' + }, + abbreviated: { + am: 'AM', + pm: 'PM', + midnight: 'midnight', + noon: 'noon', + morning: 'morning', + afternoon: 'afternoon', + evening: 'evening', + night: 'night' + }, + wide: { + am: 'a.m.', + pm: 'p.m.', + midnight: 'midnight', + noon: 'noon', + morning: 'morning', + afternoon: 'afternoon', + evening: 'evening', + night: 'night' + } +}; +var formattingDayPeriodValues = { + narrow: { + am: 'a', + pm: 'p', + midnight: 'mi', + noon: 'n', + morning: 'in the morning', + afternoon: 'in the afternoon', + evening: 'in the evening', + night: 'at night' + }, + abbreviated: { + am: 'AM', + pm: 'PM', + midnight: 'midnight', + noon: 'noon', + morning: 'in the morning', + afternoon: 'in the afternoon', + evening: 'in the evening', + night: 'at night' + }, + wide: { + am: 'a.m.', + pm: 'p.m.', + midnight: 'midnight', + noon: 'noon', + morning: 'in the morning', + afternoon: 'in the afternoon', + evening: 'in the evening', + night: 'at night' + } +}; + +function ordinalNumber(dirtyNumber, _dirtyOptions) { + var number = Number(dirtyNumber); // If ordinal numbers depend on context, for example, + // if they are different for different grammatical genders, + // use `options.unit`: + // + // var options = dirtyOptions || {} + // var unit = String(options.unit) + // + // where `unit` can be 'year', 'quarter', 'month', 'week', 'date', 'dayOfYear', + // 'day', 'hour', 'minute', 'second' + + var rem100 = number % 100; + + if (rem100 > 20 || rem100 < 10) { + switch (rem100 % 10) { + case 1: + return number + 'st'; + + case 2: + return number + 'nd'; + + case 3: + return number + 'rd'; + } + } + + return number + 'th'; +} + +var localize = { + ordinalNumber: ordinalNumber, + era: buildLocalizeFn({ + values: eraValues, + defaultWidth: 'wide' + }), + quarter: buildLocalizeFn({ + values: quarterValues, + defaultWidth: 'wide', + argumentCallback: function (quarter) { + return Number(quarter) - 1; + } + }), + month: buildLocalizeFn({ + values: monthValues, + defaultWidth: 'wide' + }), + day: buildLocalizeFn({ + values: dayValues, + defaultWidth: 'wide' + }), + dayPeriod: buildLocalizeFn({ + values: dayPeriodValues, + defaultWidth: 'wide', + formattingValues: formattingDayPeriodValues, + defaultFormattingWidth: 'wide' + }) +}; + +function buildMatchPatternFn(args) { + return function (dirtyString, dirtyOptions) { + var string = String(dirtyString); + var options = dirtyOptions || {}; + var matchResult = string.match(args.matchPattern); + + if (!matchResult) { + return null; + } + + var matchedString = matchResult[0]; + var parseResult = string.match(args.parsePattern); + + if (!parseResult) { + return null; + } + + var value = args.valueCallback ? args.valueCallback(parseResult[0]) : parseResult[0]; + value = options.valueCallback ? options.valueCallback(value) : value; + return { + value: value, + rest: string.slice(matchedString.length) + }; + }; +} + +function buildMatchFn(args) { + return function (dirtyString, dirtyOptions) { + var string = String(dirtyString); + var options = dirtyOptions || {}; + var width = options.width; + var matchPattern = width && args.matchPatterns[width] || args.matchPatterns[args.defaultMatchWidth]; + var matchResult = string.match(matchPattern); + + if (!matchResult) { + return null; + } + + var matchedString = matchResult[0]; + var parsePatterns = width && args.parsePatterns[width] || args.parsePatterns[args.defaultParseWidth]; + var value; + + if (Object.prototype.toString.call(parsePatterns) === '[object Array]') { + value = findIndex(parsePatterns, function (pattern) { + return pattern.test(matchedString); + }); + } else { + value = findKey(parsePatterns, function (pattern) { + return pattern.test(matchedString); + }); + } + + value = args.valueCallback ? args.valueCallback(value) : value; + value = options.valueCallback ? options.valueCallback(value) : value; + return { + value: value, + rest: string.slice(matchedString.length) + }; + }; +} + +function findKey(object, predicate) { + for (var key in object) { + if (object.hasOwnProperty(key) && predicate(object[key])) { + return key; + } + } +} + +function findIndex(array, predicate) { + for (var key = 0; key < array.length; key++) { + if (predicate(array[key])) { + return key; + } + } +} + +var matchOrdinalNumberPattern = /^(\d+)(th|st|nd|rd)?/i; +var parseOrdinalNumberPattern = /\d+/i; +var matchEraPatterns = { + narrow: /^(b|a)/i, + abbreviated: /^(b\.?\s?c\.?|b\.?\s?c\.?\s?e\.?|a\.?\s?d\.?|c\.?\s?e\.?)/i, + wide: /^(before christ|before common era|anno domini|common era)/i +}; +var parseEraPatterns = { + any: [/^b/i, /^(a|c)/i] +}; +var matchQuarterPatterns = { + narrow: /^[1234]/i, + abbreviated: /^q[1234]/i, + wide: /^[1234](th|st|nd|rd)? quarter/i +}; +var parseQuarterPatterns = { + any: [/1/i, /2/i, /3/i, /4/i] +}; +var matchMonthPatterns = { + narrow: /^[jfmasond]/i, + abbreviated: /^(jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)/i, + wide: /^(january|february|march|april|may|june|july|august|september|october|november|december)/i +}; +var parseMonthPatterns = { + narrow: [/^j/i, /^f/i, /^m/i, /^a/i, /^m/i, /^j/i, /^j/i, /^a/i, /^s/i, /^o/i, /^n/i, /^d/i], + any: [/^ja/i, /^f/i, /^mar/i, /^ap/i, /^may/i, /^jun/i, /^jul/i, /^au/i, /^s/i, /^o/i, /^n/i, /^d/i] +}; +var matchDayPatterns = { + narrow: /^[smtwf]/i, + short: /^(su|mo|tu|we|th|fr|sa)/i, + abbreviated: /^(sun|mon|tue|wed|thu|fri|sat)/i, + wide: /^(sunday|monday|tuesday|wednesday|thursday|friday|saturday)/i +}; +var parseDayPatterns = { + narrow: [/^s/i, /^m/i, /^t/i, /^w/i, /^t/i, /^f/i, /^s/i], + any: [/^su/i, /^m/i, /^tu/i, /^w/i, /^th/i, /^f/i, /^sa/i] +}; +var matchDayPeriodPatterns = { + narrow: /^(a|p|mi|n|(in the|at) (morning|afternoon|evening|night))/i, + any: /^([ap]\.?\s?m\.?|midnight|noon|(in the|at) (morning|afternoon|evening|night))/i +}; +var parseDayPeriodPatterns = { + any: { + am: /^a/i, + pm: /^p/i, + midnight: /^mi/i, + noon: /^no/i, + morning: /morning/i, + afternoon: /afternoon/i, + evening: /evening/i, + night: /night/i + } +}; +var match = { + ordinalNumber: buildMatchPatternFn({ + matchPattern: matchOrdinalNumberPattern, + parsePattern: parseOrdinalNumberPattern, + valueCallback: function (value) { + return parseInt(value, 10); + } + }), + era: buildMatchFn({ + matchPatterns: matchEraPatterns, + defaultMatchWidth: 'wide', + parsePatterns: parseEraPatterns, + defaultParseWidth: 'any' + }), + quarter: buildMatchFn({ + matchPatterns: matchQuarterPatterns, + defaultMatchWidth: 'wide', + parsePatterns: parseQuarterPatterns, + defaultParseWidth: 'any', + valueCallback: function (index) { + return index + 1; + } + }), + month: buildMatchFn({ + matchPatterns: matchMonthPatterns, + defaultMatchWidth: 'wide', + parsePatterns: parseMonthPatterns, + defaultParseWidth: 'any' + }), + day: buildMatchFn({ + matchPatterns: matchDayPatterns, + defaultMatchWidth: 'wide', + parsePatterns: parseDayPatterns, + defaultParseWidth: 'any' + }), + dayPeriod: buildMatchFn({ + matchPatterns: matchDayPeriodPatterns, + defaultMatchWidth: 'any', + parsePatterns: parseDayPeriodPatterns, + defaultParseWidth: 'any' + }) +}; + +/** + * @type {Locale} + * @category Locales + * @summary English locale (United States). + * @language English + * @iso-639-2 eng + * @author Sasha Koss [@kossnocorp]{@link https://github.com/kossnocorp} + * @author Lesha Koss [@leshakoss]{@link https://github.com/leshakoss} + */ + +var locale = { + code: 'en-US', + formatDistance: formatDistance, + formatLong: formatLong, + formatRelative: formatRelative, + localize: localize, + match: match, + options: { + weekStartsOn: 0 + /* Sunday */ + , + firstWeekContainsDate: 1 + } +}; + +/** + * @name subMilliseconds + * @category Millisecond Helpers + * @summary Subtract the specified number of milliseconds from the given date. + * + * @description + * Subtract the specified number of milliseconds from the given date. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the date to be changed + * @param {Number} amount - the amount of milliseconds to be subtracted. Positive decimals will be rounded using `Math.floor`, decimals less than zero will be rounded using `Math.ceil`. + * @returns {Date} the new date with the milliseconds subtracted + * @throws {TypeError} 2 arguments required + * + * @example + * // Subtract 750 milliseconds from 10 July 2014 12:45:30.000: + * const result = subMilliseconds(new Date(2014, 6, 10, 12, 45, 30, 0), 750) + * //=> Thu Jul 10 2014 12:45:29.250 + */ + +function subMilliseconds(dirtyDate, dirtyAmount) { + requiredArgs(2, arguments); + var amount = toInteger(dirtyAmount); + return addMilliseconds(dirtyDate, -amount); +} + +function addLeadingZeros(number, targetLength) { + var sign = number < 0 ? '-' : ''; + var output = Math.abs(number).toString(); + + while (output.length < targetLength) { + output = '0' + output; + } + + return sign + output; +} + +/* + * | | Unit | | Unit | + * |-----|--------------------------------|-----|--------------------------------| + * | a | AM, PM | A* | | + * | d | Day of month | D | | + * | h | Hour [1-12] | H | Hour [0-23] | + * | m | Minute | M | Month | + * | s | Second | S | Fraction of second | + * | y | Year (abs) | Y | | + * + * Letters marked by * are not implemented but reserved by Unicode standard. + */ + +var formatters$1 = { + // Year + y: function (date, token) { + // From http://www.unicode.org/reports/tr35/tr35-31/tr35-dates.html#Date_Format_tokens + // | Year | y | yy | yyy | yyyy | yyyyy | + // |----------|-------|----|-------|-------|-------| + // | AD 1 | 1 | 01 | 001 | 0001 | 00001 | + // | AD 12 | 12 | 12 | 012 | 0012 | 00012 | + // | AD 123 | 123 | 23 | 123 | 0123 | 00123 | + // | AD 1234 | 1234 | 34 | 1234 | 1234 | 01234 | + // | AD 12345 | 12345 | 45 | 12345 | 12345 | 12345 | + var signedYear = date.getUTCFullYear(); // Returns 1 for 1 BC (which is year 0 in JavaScript) + + var year = signedYear > 0 ? signedYear : 1 - signedYear; + return addLeadingZeros(token === 'yy' ? year % 100 : year, token.length); + }, + // Month + M: function (date, token) { + var month = date.getUTCMonth(); + return token === 'M' ? String(month + 1) : addLeadingZeros(month + 1, 2); + }, + // Day of the month + d: function (date, token) { + return addLeadingZeros(date.getUTCDate(), token.length); + }, + // AM or PM + a: function (date, token) { + var dayPeriodEnumValue = date.getUTCHours() / 12 >= 1 ? 'pm' : 'am'; + + switch (token) { + case 'a': + case 'aa': + return dayPeriodEnumValue.toUpperCase(); + + case 'aaa': + return dayPeriodEnumValue; + + case 'aaaaa': + return dayPeriodEnumValue[0]; + + case 'aaaa': + default: + return dayPeriodEnumValue === 'am' ? 'a.m.' : 'p.m.'; + } + }, + // Hour [1-12] + h: function (date, token) { + return addLeadingZeros(date.getUTCHours() % 12 || 12, token.length); + }, + // Hour [0-23] + H: function (date, token) { + return addLeadingZeros(date.getUTCHours(), token.length); + }, + // Minute + m: function (date, token) { + return addLeadingZeros(date.getUTCMinutes(), token.length); + }, + // Second + s: function (date, token) { + return addLeadingZeros(date.getUTCSeconds(), token.length); + }, + // Fraction of second + S: function (date, token) { + var numberOfDigits = token.length; + var milliseconds = date.getUTCMilliseconds(); + var fractionalSeconds = Math.floor(milliseconds * Math.pow(10, numberOfDigits - 3)); + return addLeadingZeros(fractionalSeconds, token.length); + } +}; + +var MILLISECONDS_IN_DAY = 86400000; // This function will be a part of public API when UTC function will be implemented. +// See issue: https://github.com/date-fns/date-fns/issues/376 + +function getUTCDayOfYear(dirtyDate) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate); + var timestamp = date.getTime(); + date.setUTCMonth(0, 1); + date.setUTCHours(0, 0, 0, 0); + var startOfYearTimestamp = date.getTime(); + var difference = timestamp - startOfYearTimestamp; + return Math.floor(difference / MILLISECONDS_IN_DAY) + 1; +} + +// See issue: https://github.com/date-fns/date-fns/issues/376 + +function startOfUTCISOWeek(dirtyDate) { + requiredArgs(1, arguments); + var weekStartsOn = 1; + var date = toDate(dirtyDate); + var day = date.getUTCDay(); + var diff = (day < weekStartsOn ? 7 : 0) + day - weekStartsOn; + date.setUTCDate(date.getUTCDate() - diff); + date.setUTCHours(0, 0, 0, 0); + return date; +} + +// See issue: https://github.com/date-fns/date-fns/issues/376 + +function getUTCISOWeekYear(dirtyDate) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate); + var year = date.getUTCFullYear(); + var fourthOfJanuaryOfNextYear = new Date(0); + fourthOfJanuaryOfNextYear.setUTCFullYear(year + 1, 0, 4); + fourthOfJanuaryOfNextYear.setUTCHours(0, 0, 0, 0); + var startOfNextYear = startOfUTCISOWeek(fourthOfJanuaryOfNextYear); + var fourthOfJanuaryOfThisYear = new Date(0); + fourthOfJanuaryOfThisYear.setUTCFullYear(year, 0, 4); + fourthOfJanuaryOfThisYear.setUTCHours(0, 0, 0, 0); + var startOfThisYear = startOfUTCISOWeek(fourthOfJanuaryOfThisYear); + + if (date.getTime() >= startOfNextYear.getTime()) { + return year + 1; + } else if (date.getTime() >= startOfThisYear.getTime()) { + return year; + } else { + return year - 1; + } +} + +// See issue: https://github.com/date-fns/date-fns/issues/376 + +function startOfUTCISOWeekYear(dirtyDate) { + requiredArgs(1, arguments); + var year = getUTCISOWeekYear(dirtyDate); + var fourthOfJanuary = new Date(0); + fourthOfJanuary.setUTCFullYear(year, 0, 4); + fourthOfJanuary.setUTCHours(0, 0, 0, 0); + var date = startOfUTCISOWeek(fourthOfJanuary); + return date; +} + +var MILLISECONDS_IN_WEEK$1 = 604800000; // This function will be a part of public API when UTC function will be implemented. +// See issue: https://github.com/date-fns/date-fns/issues/376 + +function getUTCISOWeek(dirtyDate) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate); + var diff = startOfUTCISOWeek(date).getTime() - startOfUTCISOWeekYear(date).getTime(); // Round the number of days to the nearest integer + // because the number of milliseconds in a week is not constant + // (e.g. it's different in the week of the daylight saving time clock shift) + + return Math.round(diff / MILLISECONDS_IN_WEEK$1) + 1; +} + +// See issue: https://github.com/date-fns/date-fns/issues/376 + +function startOfUTCWeek(dirtyDate, dirtyOptions) { + requiredArgs(1, arguments); + var options = dirtyOptions || {}; + var locale = options.locale; + var localeWeekStartsOn = locale && locale.options && locale.options.weekStartsOn; + var defaultWeekStartsOn = localeWeekStartsOn == null ? 0 : toInteger(localeWeekStartsOn); + var weekStartsOn = options.weekStartsOn == null ? defaultWeekStartsOn : toInteger(options.weekStartsOn); // Test if weekStartsOn is between 0 and 6 _and_ is not NaN + + if (!(weekStartsOn >= 0 && weekStartsOn <= 6)) { + throw new RangeError('weekStartsOn must be between 0 and 6 inclusively'); + } + + var date = toDate(dirtyDate); + var day = date.getUTCDay(); + var diff = (day < weekStartsOn ? 7 : 0) + day - weekStartsOn; + date.setUTCDate(date.getUTCDate() - diff); + date.setUTCHours(0, 0, 0, 0); + return date; +} + +// See issue: https://github.com/date-fns/date-fns/issues/376 + +function getUTCWeekYear(dirtyDate, dirtyOptions) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate, dirtyOptions); + var year = date.getUTCFullYear(); + var options = dirtyOptions || {}; + var locale = options.locale; + var localeFirstWeekContainsDate = locale && locale.options && locale.options.firstWeekContainsDate; + var defaultFirstWeekContainsDate = localeFirstWeekContainsDate == null ? 1 : toInteger(localeFirstWeekContainsDate); + var firstWeekContainsDate = options.firstWeekContainsDate == null ? defaultFirstWeekContainsDate : toInteger(options.firstWeekContainsDate); // Test if weekStartsOn is between 1 and 7 _and_ is not NaN + + if (!(firstWeekContainsDate >= 1 && firstWeekContainsDate <= 7)) { + throw new RangeError('firstWeekContainsDate must be between 1 and 7 inclusively'); + } + + var firstWeekOfNextYear = new Date(0); + firstWeekOfNextYear.setUTCFullYear(year + 1, 0, firstWeekContainsDate); + firstWeekOfNextYear.setUTCHours(0, 0, 0, 0); + var startOfNextYear = startOfUTCWeek(firstWeekOfNextYear, dirtyOptions); + var firstWeekOfThisYear = new Date(0); + firstWeekOfThisYear.setUTCFullYear(year, 0, firstWeekContainsDate); + firstWeekOfThisYear.setUTCHours(0, 0, 0, 0); + var startOfThisYear = startOfUTCWeek(firstWeekOfThisYear, dirtyOptions); + + if (date.getTime() >= startOfNextYear.getTime()) { + return year + 1; + } else if (date.getTime() >= startOfThisYear.getTime()) { + return year; + } else { + return year - 1; + } +} + +// See issue: https://github.com/date-fns/date-fns/issues/376 + +function startOfUTCWeekYear(dirtyDate, dirtyOptions) { + requiredArgs(1, arguments); + var options = dirtyOptions || {}; + var locale = options.locale; + var localeFirstWeekContainsDate = locale && locale.options && locale.options.firstWeekContainsDate; + var defaultFirstWeekContainsDate = localeFirstWeekContainsDate == null ? 1 : toInteger(localeFirstWeekContainsDate); + var firstWeekContainsDate = options.firstWeekContainsDate == null ? defaultFirstWeekContainsDate : toInteger(options.firstWeekContainsDate); + var year = getUTCWeekYear(dirtyDate, dirtyOptions); + var firstWeek = new Date(0); + firstWeek.setUTCFullYear(year, 0, firstWeekContainsDate); + firstWeek.setUTCHours(0, 0, 0, 0); + var date = startOfUTCWeek(firstWeek, dirtyOptions); + return date; +} + +var MILLISECONDS_IN_WEEK = 604800000; // This function will be a part of public API when UTC function will be implemented. +// See issue: https://github.com/date-fns/date-fns/issues/376 + +function getUTCWeek(dirtyDate, options) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate); + var diff = startOfUTCWeek(date, options).getTime() - startOfUTCWeekYear(date, options).getTime(); // Round the number of days to the nearest integer + // because the number of milliseconds in a week is not constant + // (e.g. it's different in the week of the daylight saving time clock shift) + + return Math.round(diff / MILLISECONDS_IN_WEEK) + 1; +} + +var dayPeriodEnum = { + am: 'am', + pm: 'pm', + midnight: 'midnight', + noon: 'noon', + morning: 'morning', + afternoon: 'afternoon', + evening: 'evening', + night: 'night' + /* + * | | Unit | | Unit | + * |-----|--------------------------------|-----|--------------------------------| + * | a | AM, PM | A* | Milliseconds in day | + * | b | AM, PM, noon, midnight | B | Flexible day period | + * | c | Stand-alone local day of week | C* | Localized hour w/ day period | + * | d | Day of month | D | Day of year | + * | e | Local day of week | E | Day of week | + * | f | | F* | Day of week in month | + * | g* | Modified Julian day | G | Era | + * | h | Hour [1-12] | H | Hour [0-23] | + * | i! | ISO day of week | I! | ISO week of year | + * | j* | Localized hour w/ day period | J* | Localized hour w/o day period | + * | k | Hour [1-24] | K | Hour [0-11] | + * | l* | (deprecated) | L | Stand-alone month | + * | m | Minute | M | Month | + * | n | | N | | + * | o! | Ordinal number modifier | O | Timezone (GMT) | + * | p! | Long localized time | P! | Long localized date | + * | q | Stand-alone quarter | Q | Quarter | + * | r* | Related Gregorian year | R! | ISO week-numbering year | + * | s | Second | S | Fraction of second | + * | t! | Seconds timestamp | T! | Milliseconds timestamp | + * | u | Extended year | U* | Cyclic year | + * | v* | Timezone (generic non-locat.) | V* | Timezone (location) | + * | w | Local week of year | W* | Week of month | + * | x | Timezone (ISO-8601 w/o Z) | X | Timezone (ISO-8601) | + * | y | Year (abs) | Y | Local week-numbering year | + * | z | Timezone (specific non-locat.) | Z* | Timezone (aliases) | + * + * Letters marked by * are not implemented but reserved by Unicode standard. + * + * Letters marked by ! are non-standard, but implemented by date-fns: + * - `o` modifies the previous token to turn it into an ordinal (see `format` docs) + * - `i` is ISO day of week. For `i` and `ii` is returns numeric ISO week days, + * i.e. 7 for Sunday, 1 for Monday, etc. + * - `I` is ISO week of year, as opposed to `w` which is local week of year. + * - `R` is ISO week-numbering year, as opposed to `Y` which is local week-numbering year. + * `R` is supposed to be used in conjunction with `I` and `i` + * for universal ISO week-numbering date, whereas + * `Y` is supposed to be used in conjunction with `w` and `e` + * for week-numbering date specific to the locale. + * - `P` is long localized date format + * - `p` is long localized time format + */ + +}; +var formatters = { + // Era + G: function (date, token, localize) { + var era = date.getUTCFullYear() > 0 ? 1 : 0; + + switch (token) { + // AD, BC + case 'G': + case 'GG': + case 'GGG': + return localize.era(era, { + width: 'abbreviated' + }); + // A, B + + case 'GGGGG': + return localize.era(era, { + width: 'narrow' + }); + // Anno Domini, Before Christ + + case 'GGGG': + default: + return localize.era(era, { + width: 'wide' + }); + } + }, + // Year + y: function (date, token, localize) { + // Ordinal number + if (token === 'yo') { + var signedYear = date.getUTCFullYear(); // Returns 1 for 1 BC (which is year 0 in JavaScript) + + var year = signedYear > 0 ? signedYear : 1 - signedYear; + return localize.ordinalNumber(year, { + unit: 'year' + }); + } + + return formatters$1.y(date, token); + }, + // Local week-numbering year + Y: function (date, token, localize, options) { + var signedWeekYear = getUTCWeekYear(date, options); // Returns 1 for 1 BC (which is year 0 in JavaScript) + + var weekYear = signedWeekYear > 0 ? signedWeekYear : 1 - signedWeekYear; // Two digit year + + if (token === 'YY') { + var twoDigitYear = weekYear % 100; + return addLeadingZeros(twoDigitYear, 2); + } // Ordinal number + + + if (token === 'Yo') { + return localize.ordinalNumber(weekYear, { + unit: 'year' + }); + } // Padding + + + return addLeadingZeros(weekYear, token.length); + }, + // ISO week-numbering year + R: function (date, token) { + var isoWeekYear = getUTCISOWeekYear(date); // Padding + + return addLeadingZeros(isoWeekYear, token.length); + }, + // Extended year. This is a single number designating the year of this calendar system. + // The main difference between `y` and `u` localizers are B.C. years: + // | Year | `y` | `u` | + // |------|-----|-----| + // | AC 1 | 1 | 1 | + // | BC 1 | 1 | 0 | + // | BC 2 | 2 | -1 | + // Also `yy` always returns the last two digits of a year, + // while `uu` pads single digit years to 2 characters and returns other years unchanged. + u: function (date, token) { + var year = date.getUTCFullYear(); + return addLeadingZeros(year, token.length); + }, + // Quarter + Q: function (date, token, localize) { + var quarter = Math.ceil((date.getUTCMonth() + 1) / 3); + + switch (token) { + // 1, 2, 3, 4 + case 'Q': + return String(quarter); + // 01, 02, 03, 04 + + case 'QQ': + return addLeadingZeros(quarter, 2); + // 1st, 2nd, 3rd, 4th + + case 'Qo': + return localize.ordinalNumber(quarter, { + unit: 'quarter' + }); + // Q1, Q2, Q3, Q4 + + case 'QQQ': + return localize.quarter(quarter, { + width: 'abbreviated', + context: 'formatting' + }); + // 1, 2, 3, 4 (narrow quarter; could be not numerical) + + case 'QQQQQ': + return localize.quarter(quarter, { + width: 'narrow', + context: 'formatting' + }); + // 1st quarter, 2nd quarter, ... + + case 'QQQQ': + default: + return localize.quarter(quarter, { + width: 'wide', + context: 'formatting' + }); + } + }, + // Stand-alone quarter + q: function (date, token, localize) { + var quarter = Math.ceil((date.getUTCMonth() + 1) / 3); + + switch (token) { + // 1, 2, 3, 4 + case 'q': + return String(quarter); + // 01, 02, 03, 04 + + case 'qq': + return addLeadingZeros(quarter, 2); + // 1st, 2nd, 3rd, 4th + + case 'qo': + return localize.ordinalNumber(quarter, { + unit: 'quarter' + }); + // Q1, Q2, Q3, Q4 + + case 'qqq': + return localize.quarter(quarter, { + width: 'abbreviated', + context: 'standalone' + }); + // 1, 2, 3, 4 (narrow quarter; could be not numerical) + + case 'qqqqq': + return localize.quarter(quarter, { + width: 'narrow', + context: 'standalone' + }); + // 1st quarter, 2nd quarter, ... + + case 'qqqq': + default: + return localize.quarter(quarter, { + width: 'wide', + context: 'standalone' + }); + } + }, + // Month + M: function (date, token, localize) { + var month = date.getUTCMonth(); + + switch (token) { + case 'M': + case 'MM': + return formatters$1.M(date, token); + // 1st, 2nd, ..., 12th + + case 'Mo': + return localize.ordinalNumber(month + 1, { + unit: 'month' + }); + // Jan, Feb, ..., Dec + + case 'MMM': + return localize.month(month, { + width: 'abbreviated', + context: 'formatting' + }); + // J, F, ..., D + + case 'MMMMM': + return localize.month(month, { + width: 'narrow', + context: 'formatting' + }); + // January, February, ..., December + + case 'MMMM': + default: + return localize.month(month, { + width: 'wide', + context: 'formatting' + }); + } + }, + // Stand-alone month + L: function (date, token, localize) { + var month = date.getUTCMonth(); + + switch (token) { + // 1, 2, ..., 12 + case 'L': + return String(month + 1); + // 01, 02, ..., 12 + + case 'LL': + return addLeadingZeros(month + 1, 2); + // 1st, 2nd, ..., 12th + + case 'Lo': + return localize.ordinalNumber(month + 1, { + unit: 'month' + }); + // Jan, Feb, ..., Dec + + case 'LLL': + return localize.month(month, { + width: 'abbreviated', + context: 'standalone' + }); + // J, F, ..., D + + case 'LLLLL': + return localize.month(month, { + width: 'narrow', + context: 'standalone' + }); + // January, February, ..., December + + case 'LLLL': + default: + return localize.month(month, { + width: 'wide', + context: 'standalone' + }); + } + }, + // Local week of year + w: function (date, token, localize, options) { + var week = getUTCWeek(date, options); + + if (token === 'wo') { + return localize.ordinalNumber(week, { + unit: 'week' + }); + } + + return addLeadingZeros(week, token.length); + }, + // ISO week of year + I: function (date, token, localize) { + var isoWeek = getUTCISOWeek(date); + + if (token === 'Io') { + return localize.ordinalNumber(isoWeek, { + unit: 'week' + }); + } + + return addLeadingZeros(isoWeek, token.length); + }, + // Day of the month + d: function (date, token, localize) { + if (token === 'do') { + return localize.ordinalNumber(date.getUTCDate(), { + unit: 'date' + }); + } + + return formatters$1.d(date, token); + }, + // Day of year + D: function (date, token, localize) { + var dayOfYear = getUTCDayOfYear(date); + + if (token === 'Do') { + return localize.ordinalNumber(dayOfYear, { + unit: 'dayOfYear' + }); + } + + return addLeadingZeros(dayOfYear, token.length); + }, + // Day of week + E: function (date, token, localize) { + var dayOfWeek = date.getUTCDay(); + + switch (token) { + // Tue + case 'E': + case 'EE': + case 'EEE': + return localize.day(dayOfWeek, { + width: 'abbreviated', + context: 'formatting' + }); + // T + + case 'EEEEE': + return localize.day(dayOfWeek, { + width: 'narrow', + context: 'formatting' + }); + // Tu + + case 'EEEEEE': + return localize.day(dayOfWeek, { + width: 'short', + context: 'formatting' + }); + // Tuesday + + case 'EEEE': + default: + return localize.day(dayOfWeek, { + width: 'wide', + context: 'formatting' + }); + } + }, + // Local day of week + e: function (date, token, localize, options) { + var dayOfWeek = date.getUTCDay(); + var localDayOfWeek = (dayOfWeek - options.weekStartsOn + 8) % 7 || 7; + + switch (token) { + // Numerical value (Nth day of week with current locale or weekStartsOn) + case 'e': + return String(localDayOfWeek); + // Padded numerical value + + case 'ee': + return addLeadingZeros(localDayOfWeek, 2); + // 1st, 2nd, ..., 7th + + case 'eo': + return localize.ordinalNumber(localDayOfWeek, { + unit: 'day' + }); + + case 'eee': + return localize.day(dayOfWeek, { + width: 'abbreviated', + context: 'formatting' + }); + // T + + case 'eeeee': + return localize.day(dayOfWeek, { + width: 'narrow', + context: 'formatting' + }); + // Tu + + case 'eeeeee': + return localize.day(dayOfWeek, { + width: 'short', + context: 'formatting' + }); + // Tuesday + + case 'eeee': + default: + return localize.day(dayOfWeek, { + width: 'wide', + context: 'formatting' + }); + } + }, + // Stand-alone local day of week + c: function (date, token, localize, options) { + var dayOfWeek = date.getUTCDay(); + var localDayOfWeek = (dayOfWeek - options.weekStartsOn + 8) % 7 || 7; + + switch (token) { + // Numerical value (same as in `e`) + case 'c': + return String(localDayOfWeek); + // Padded numerical value + + case 'cc': + return addLeadingZeros(localDayOfWeek, token.length); + // 1st, 2nd, ..., 7th + + case 'co': + return localize.ordinalNumber(localDayOfWeek, { + unit: 'day' + }); + + case 'ccc': + return localize.day(dayOfWeek, { + width: 'abbreviated', + context: 'standalone' + }); + // T + + case 'ccccc': + return localize.day(dayOfWeek, { + width: 'narrow', + context: 'standalone' + }); + // Tu + + case 'cccccc': + return localize.day(dayOfWeek, { + width: 'short', + context: 'standalone' + }); + // Tuesday + + case 'cccc': + default: + return localize.day(dayOfWeek, { + width: 'wide', + context: 'standalone' + }); + } + }, + // ISO day of week + i: function (date, token, localize) { + var dayOfWeek = date.getUTCDay(); + var isoDayOfWeek = dayOfWeek === 0 ? 7 : dayOfWeek; + + switch (token) { + // 2 + case 'i': + return String(isoDayOfWeek); + // 02 + + case 'ii': + return addLeadingZeros(isoDayOfWeek, token.length); + // 2nd + + case 'io': + return localize.ordinalNumber(isoDayOfWeek, { + unit: 'day' + }); + // Tue + + case 'iii': + return localize.day(dayOfWeek, { + width: 'abbreviated', + context: 'formatting' + }); + // T + + case 'iiiii': + return localize.day(dayOfWeek, { + width: 'narrow', + context: 'formatting' + }); + // Tu + + case 'iiiiii': + return localize.day(dayOfWeek, { + width: 'short', + context: 'formatting' + }); + // Tuesday + + case 'iiii': + default: + return localize.day(dayOfWeek, { + width: 'wide', + context: 'formatting' + }); + } + }, + // AM or PM + a: function (date, token, localize) { + var hours = date.getUTCHours(); + var dayPeriodEnumValue = hours / 12 >= 1 ? 'pm' : 'am'; + + switch (token) { + case 'a': + case 'aa': + return localize.dayPeriod(dayPeriodEnumValue, { + width: 'abbreviated', + context: 'formatting' + }); + + case 'aaa': + return localize.dayPeriod(dayPeriodEnumValue, { + width: 'abbreviated', + context: 'formatting' + }).toLowerCase(); + + case 'aaaaa': + return localize.dayPeriod(dayPeriodEnumValue, { + width: 'narrow', + context: 'formatting' + }); + + case 'aaaa': + default: + return localize.dayPeriod(dayPeriodEnumValue, { + width: 'wide', + context: 'formatting' + }); + } + }, + // AM, PM, midnight, noon + b: function (date, token, localize) { + var hours = date.getUTCHours(); + var dayPeriodEnumValue; + + if (hours === 12) { + dayPeriodEnumValue = dayPeriodEnum.noon; + } else if (hours === 0) { + dayPeriodEnumValue = dayPeriodEnum.midnight; + } else { + dayPeriodEnumValue = hours / 12 >= 1 ? 'pm' : 'am'; + } + + switch (token) { + case 'b': + case 'bb': + return localize.dayPeriod(dayPeriodEnumValue, { + width: 'abbreviated', + context: 'formatting' + }); + + case 'bbb': + return localize.dayPeriod(dayPeriodEnumValue, { + width: 'abbreviated', + context: 'formatting' + }).toLowerCase(); + + case 'bbbbb': + return localize.dayPeriod(dayPeriodEnumValue, { + width: 'narrow', + context: 'formatting' + }); + + case 'bbbb': + default: + return localize.dayPeriod(dayPeriodEnumValue, { + width: 'wide', + context: 'formatting' + }); + } + }, + // in the morning, in the afternoon, in the evening, at night + B: function (date, token, localize) { + var hours = date.getUTCHours(); + var dayPeriodEnumValue; + + if (hours >= 17) { + dayPeriodEnumValue = dayPeriodEnum.evening; + } else if (hours >= 12) { + dayPeriodEnumValue = dayPeriodEnum.afternoon; + } else if (hours >= 4) { + dayPeriodEnumValue = dayPeriodEnum.morning; + } else { + dayPeriodEnumValue = dayPeriodEnum.night; + } + + switch (token) { + case 'B': + case 'BB': + case 'BBB': + return localize.dayPeriod(dayPeriodEnumValue, { + width: 'abbreviated', + context: 'formatting' + }); + + case 'BBBBB': + return localize.dayPeriod(dayPeriodEnumValue, { + width: 'narrow', + context: 'formatting' + }); + + case 'BBBB': + default: + return localize.dayPeriod(dayPeriodEnumValue, { + width: 'wide', + context: 'formatting' + }); + } + }, + // Hour [1-12] + h: function (date, token, localize) { + if (token === 'ho') { + var hours = date.getUTCHours() % 12; + if (hours === 0) hours = 12; + return localize.ordinalNumber(hours, { + unit: 'hour' + }); + } + + return formatters$1.h(date, token); + }, + // Hour [0-23] + H: function (date, token, localize) { + if (token === 'Ho') { + return localize.ordinalNumber(date.getUTCHours(), { + unit: 'hour' + }); + } + + return formatters$1.H(date, token); + }, + // Hour [0-11] + K: function (date, token, localize) { + var hours = date.getUTCHours() % 12; + + if (token === 'Ko') { + return localize.ordinalNumber(hours, { + unit: 'hour' + }); + } + + return addLeadingZeros(hours, token.length); + }, + // Hour [1-24] + k: function (date, token, localize) { + var hours = date.getUTCHours(); + if (hours === 0) hours = 24; + + if (token === 'ko') { + return localize.ordinalNumber(hours, { + unit: 'hour' + }); + } + + return addLeadingZeros(hours, token.length); + }, + // Minute + m: function (date, token, localize) { + if (token === 'mo') { + return localize.ordinalNumber(date.getUTCMinutes(), { + unit: 'minute' + }); + } + + return formatters$1.m(date, token); + }, + // Second + s: function (date, token, localize) { + if (token === 'so') { + return localize.ordinalNumber(date.getUTCSeconds(), { + unit: 'second' + }); + } + + return formatters$1.s(date, token); + }, + // Fraction of second + S: function (date, token) { + return formatters$1.S(date, token); + }, + // Timezone (ISO-8601. If offset is 0, output is always `'Z'`) + X: function (date, token, _localize, options) { + var originalDate = options._originalDate || date; + var timezoneOffset = originalDate.getTimezoneOffset(); + + if (timezoneOffset === 0) { + return 'Z'; + } + + switch (token) { + // Hours and optional minutes + case 'X': + return formatTimezoneWithOptionalMinutes(timezoneOffset); + // Hours, minutes and optional seconds without `:` delimiter + // Note: neither ISO-8601 nor JavaScript supports seconds in timezone offsets + // so this token always has the same output as `XX` + + case 'XXXX': + case 'XX': + // Hours and minutes without `:` delimiter + return formatTimezone(timezoneOffset); + // Hours, minutes and optional seconds with `:` delimiter + // Note: neither ISO-8601 nor JavaScript supports seconds in timezone offsets + // so this token always has the same output as `XXX` + + case 'XXXXX': + case 'XXX': // Hours and minutes with `:` delimiter + + default: + return formatTimezone(timezoneOffset, ':'); + } + }, + // Timezone (ISO-8601. If offset is 0, output is `'+00:00'` or equivalent) + x: function (date, token, _localize, options) { + var originalDate = options._originalDate || date; + var timezoneOffset = originalDate.getTimezoneOffset(); + + switch (token) { + // Hours and optional minutes + case 'x': + return formatTimezoneWithOptionalMinutes(timezoneOffset); + // Hours, minutes and optional seconds without `:` delimiter + // Note: neither ISO-8601 nor JavaScript supports seconds in timezone offsets + // so this token always has the same output as `xx` + + case 'xxxx': + case 'xx': + // Hours and minutes without `:` delimiter + return formatTimezone(timezoneOffset); + // Hours, minutes and optional seconds with `:` delimiter + // Note: neither ISO-8601 nor JavaScript supports seconds in timezone offsets + // so this token always has the same output as `xxx` + + case 'xxxxx': + case 'xxx': // Hours and minutes with `:` delimiter + + default: + return formatTimezone(timezoneOffset, ':'); + } + }, + // Timezone (GMT) + O: function (date, token, _localize, options) { + var originalDate = options._originalDate || date; + var timezoneOffset = originalDate.getTimezoneOffset(); + + switch (token) { + // Short + case 'O': + case 'OO': + case 'OOO': + return 'GMT' + formatTimezoneShort(timezoneOffset, ':'); + // Long + + case 'OOOO': + default: + return 'GMT' + formatTimezone(timezoneOffset, ':'); + } + }, + // Timezone (specific non-location) + z: function (date, token, _localize, options) { + var originalDate = options._originalDate || date; + var timezoneOffset = originalDate.getTimezoneOffset(); + + switch (token) { + // Short + case 'z': + case 'zz': + case 'zzz': + return 'GMT' + formatTimezoneShort(timezoneOffset, ':'); + // Long + + case 'zzzz': + default: + return 'GMT' + formatTimezone(timezoneOffset, ':'); + } + }, + // Seconds timestamp + t: function (date, token, _localize, options) { + var originalDate = options._originalDate || date; + var timestamp = Math.floor(originalDate.getTime() / 1000); + return addLeadingZeros(timestamp, token.length); + }, + // Milliseconds timestamp + T: function (date, token, _localize, options) { + var originalDate = options._originalDate || date; + var timestamp = originalDate.getTime(); + return addLeadingZeros(timestamp, token.length); + } +}; + +function formatTimezoneShort(offset, dirtyDelimiter) { + var sign = offset > 0 ? '-' : '+'; + var absOffset = Math.abs(offset); + var hours = Math.floor(absOffset / 60); + var minutes = absOffset % 60; + + if (minutes === 0) { + return sign + String(hours); + } + + var delimiter = dirtyDelimiter || ''; + return sign + String(hours) + delimiter + addLeadingZeros(minutes, 2); +} + +function formatTimezoneWithOptionalMinutes(offset, dirtyDelimiter) { + if (offset % 60 === 0) { + var sign = offset > 0 ? '-' : '+'; + return sign + addLeadingZeros(Math.abs(offset) / 60, 2); + } + + return formatTimezone(offset, dirtyDelimiter); +} + +function formatTimezone(offset, dirtyDelimiter) { + var delimiter = dirtyDelimiter || ''; + var sign = offset > 0 ? '-' : '+'; + var absOffset = Math.abs(offset); + var hours = addLeadingZeros(Math.floor(absOffset / 60), 2); + var minutes = addLeadingZeros(absOffset % 60, 2); + return sign + hours + delimiter + minutes; +} + +function dateLongFormatter(pattern, formatLong) { + switch (pattern) { + case 'P': + return formatLong.date({ + width: 'short' + }); + + case 'PP': + return formatLong.date({ + width: 'medium' + }); + + case 'PPP': + return formatLong.date({ + width: 'long' + }); + + case 'PPPP': + default: + return formatLong.date({ + width: 'full' + }); + } +} + +function timeLongFormatter(pattern, formatLong) { + switch (pattern) { + case 'p': + return formatLong.time({ + width: 'short' + }); + + case 'pp': + return formatLong.time({ + width: 'medium' + }); + + case 'ppp': + return formatLong.time({ + width: 'long' + }); + + case 'pppp': + default: + return formatLong.time({ + width: 'full' + }); + } +} + +function dateTimeLongFormatter(pattern, formatLong) { + var matchResult = pattern.match(/(P+)(p+)?/); + var datePattern = matchResult[1]; + var timePattern = matchResult[2]; + + if (!timePattern) { + return dateLongFormatter(pattern, formatLong); + } + + var dateTimeFormat; + + switch (datePattern) { + case 'P': + dateTimeFormat = formatLong.dateTime({ + width: 'short' + }); + break; + + case 'PP': + dateTimeFormat = formatLong.dateTime({ + width: 'medium' + }); + break; + + case 'PPP': + dateTimeFormat = formatLong.dateTime({ + width: 'long' + }); + break; + + case 'PPPP': + default: + dateTimeFormat = formatLong.dateTime({ + width: 'full' + }); + break; + } + + return dateTimeFormat.replace('{{date}}', dateLongFormatter(datePattern, formatLong)).replace('{{time}}', timeLongFormatter(timePattern, formatLong)); +} + +var longFormatters = { + p: timeLongFormatter, + P: dateTimeLongFormatter +}; + +var protectedDayOfYearTokens = ['D', 'DD']; +var protectedWeekYearTokens = ['YY', 'YYYY']; +function isProtectedDayOfYearToken(token) { + return protectedDayOfYearTokens.indexOf(token) !== -1; +} +function isProtectedWeekYearToken(token) { + return protectedWeekYearTokens.indexOf(token) !== -1; +} +function throwProtectedError(token, format, input) { + if (token === 'YYYY') { + throw new RangeError("Use `yyyy` instead of `YYYY` (in `".concat(format, "`) for formatting years to the input `").concat(input, "`; see: https://git.io/fxCyr")); + } else if (token === 'YY') { + throw new RangeError("Use `yy` instead of `YY` (in `".concat(format, "`) for formatting years to the input `").concat(input, "`; see: https://git.io/fxCyr")); + } else if (token === 'D') { + throw new RangeError("Use `d` instead of `D` (in `".concat(format, "`) for formatting days of the month to the input `").concat(input, "`; see: https://git.io/fxCyr")); + } else if (token === 'DD') { + throw new RangeError("Use `dd` instead of `DD` (in `".concat(format, "`) for formatting days of the month to the input `").concat(input, "`; see: https://git.io/fxCyr")); + } +} + +// - [yYQqMLwIdDecihHKkms]o matches any available ordinal number token +// (one of the certain letters followed by `o`) +// - (\w)\1* matches any sequences of the same letter +// - '' matches two quote characters in a row +// - '(''|[^'])+('|$) matches anything surrounded by two quote characters ('), +// except a single quote symbol, which ends the sequence. +// Two quote characters do not end the sequence. +// If there is no matching single quote +// then the sequence will continue until the end of the string. +// - . matches any single character unmatched by previous parts of the RegExps + +var formattingTokensRegExp$1 = /[yYQqMLwIdDecihHKkms]o|(\w)\1*|''|'(''|[^'])+('|$)|./g; // This RegExp catches symbols escaped by quotes, and also +// sequences of symbols P, p, and the combinations like `PPPPPPPppppp` + +var longFormattingTokensRegExp$1 = /P+p+|P+|p+|''|'(''|[^'])+('|$)|./g; +var escapedStringRegExp$1 = /^'([^]*?)'?$/; +var doubleQuoteRegExp$1 = /''/g; +var unescapedLatinCharacterRegExp$1 = /[a-zA-Z]/; +/** + * @name format + * @category Common Helpers + * @summary Format the date. + * + * @description + * Return the formatted date string in the given format. The result may vary by locale. + * + * > ⚠️ Please note that the `format` tokens differ from Moment.js and other libraries. + * > See: https://git.io/fxCyr + * + * The characters wrapped between two single quotes characters (') are escaped. + * Two single quotes in a row, whether inside or outside a quoted sequence, represent a 'real' single quote. + * (see the last example) + * + * Format of the string is based on Unicode Technical Standard #35: + * https://www.unicode.org/reports/tr35/tr35-dates.html#Date_Field_Symbol_Table + * with a few additions (see note 7 below the table). + * + * Accepted patterns: + * | Unit | Pattern | Result examples | Notes | + * |---------------------------------|---------|-----------------------------------|-------| + * | Era | G..GGG | AD, BC | | + * | | GGGG | Anno Domini, Before Christ | 2 | + * | | GGGGG | A, B | | + * | Calendar year | y | 44, 1, 1900, 2017 | 5 | + * | | yo | 44th, 1st, 0th, 17th | 5,7 | + * | | yy | 44, 01, 00, 17 | 5 | + * | | yyy | 044, 001, 1900, 2017 | 5 | + * | | yyyy | 0044, 0001, 1900, 2017 | 5 | + * | | yyyyy | ... | 3,5 | + * | Local week-numbering year | Y | 44, 1, 1900, 2017 | 5 | + * | | Yo | 44th, 1st, 1900th, 2017th | 5,7 | + * | | YY | 44, 01, 00, 17 | 5,8 | + * | | YYY | 044, 001, 1900, 2017 | 5 | + * | | YYYY | 0044, 0001, 1900, 2017 | 5,8 | + * | | YYYYY | ... | 3,5 | + * | ISO week-numbering year | R | -43, 0, 1, 1900, 2017 | 5,7 | + * | | RR | -43, 00, 01, 1900, 2017 | 5,7 | + * | | RRR | -043, 000, 001, 1900, 2017 | 5,7 | + * | | RRRR | -0043, 0000, 0001, 1900, 2017 | 5,7 | + * | | RRRRR | ... | 3,5,7 | + * | Extended year | u | -43, 0, 1, 1900, 2017 | 5 | + * | | uu | -43, 01, 1900, 2017 | 5 | + * | | uuu | -043, 001, 1900, 2017 | 5 | + * | | uuuu | -0043, 0001, 1900, 2017 | 5 | + * | | uuuuu | ... | 3,5 | + * | Quarter (formatting) | Q | 1, 2, 3, 4 | | + * | | Qo | 1st, 2nd, 3rd, 4th | 7 | + * | | QQ | 01, 02, 03, 04 | | + * | | QQQ | Q1, Q2, Q3, Q4 | | + * | | QQQQ | 1st quarter, 2nd quarter, ... | 2 | + * | | QQQQQ | 1, 2, 3, 4 | 4 | + * | Quarter (stand-alone) | q | 1, 2, 3, 4 | | + * | | qo | 1st, 2nd, 3rd, 4th | 7 | + * | | qq | 01, 02, 03, 04 | | + * | | qqq | Q1, Q2, Q3, Q4 | | + * | | qqqq | 1st quarter, 2nd quarter, ... | 2 | + * | | qqqqq | 1, 2, 3, 4 | 4 | + * | Month (formatting) | M | 1, 2, ..., 12 | | + * | | Mo | 1st, 2nd, ..., 12th | 7 | + * | | MM | 01, 02, ..., 12 | | + * | | MMM | Jan, Feb, ..., Dec | | + * | | MMMM | January, February, ..., December | 2 | + * | | MMMMM | J, F, ..., D | | + * | Month (stand-alone) | L | 1, 2, ..., 12 | | + * | | Lo | 1st, 2nd, ..., 12th | 7 | + * | | LL | 01, 02, ..., 12 | | + * | | LLL | Jan, Feb, ..., Dec | | + * | | LLLL | January, February, ..., December | 2 | + * | | LLLLL | J, F, ..., D | | + * | Local week of year | w | 1, 2, ..., 53 | | + * | | wo | 1st, 2nd, ..., 53th | 7 | + * | | ww | 01, 02, ..., 53 | | + * | ISO week of year | I | 1, 2, ..., 53 | 7 | + * | | Io | 1st, 2nd, ..., 53th | 7 | + * | | II | 01, 02, ..., 53 | 7 | + * | Day of month | d | 1, 2, ..., 31 | | + * | | do | 1st, 2nd, ..., 31st | 7 | + * | | dd | 01, 02, ..., 31 | | + * | Day of year | D | 1, 2, ..., 365, 366 | 9 | + * | | Do | 1st, 2nd, ..., 365th, 366th | 7 | + * | | DD | 01, 02, ..., 365, 366 | 9 | + * | | DDD | 001, 002, ..., 365, 366 | | + * | | DDDD | ... | 3 | + * | Day of week (formatting) | E..EEE | Mon, Tue, Wed, ..., Sun | | + * | | EEEE | Monday, Tuesday, ..., Sunday | 2 | + * | | EEEEE | M, T, W, T, F, S, S | | + * | | EEEEEE | Mo, Tu, We, Th, Fr, Su, Sa | | + * | ISO day of week (formatting) | i | 1, 2, 3, ..., 7 | 7 | + * | | io | 1st, 2nd, ..., 7th | 7 | + * | | ii | 01, 02, ..., 07 | 7 | + * | | iii | Mon, Tue, Wed, ..., Sun | 7 | + * | | iiii | Monday, Tuesday, ..., Sunday | 2,7 | + * | | iiiii | M, T, W, T, F, S, S | 7 | + * | | iiiiii | Mo, Tu, We, Th, Fr, Su, Sa | 7 | + * | Local day of week (formatting) | e | 2, 3, 4, ..., 1 | | + * | | eo | 2nd, 3rd, ..., 1st | 7 | + * | | ee | 02, 03, ..., 01 | | + * | | eee | Mon, Tue, Wed, ..., Sun | | + * | | eeee | Monday, Tuesday, ..., Sunday | 2 | + * | | eeeee | M, T, W, T, F, S, S | | + * | | eeeeee | Mo, Tu, We, Th, Fr, Su, Sa | | + * | Local day of week (stand-alone) | c | 2, 3, 4, ..., 1 | | + * | | co | 2nd, 3rd, ..., 1st | 7 | + * | | cc | 02, 03, ..., 01 | | + * | | ccc | Mon, Tue, Wed, ..., Sun | | + * | | cccc | Monday, Tuesday, ..., Sunday | 2 | + * | | ccccc | M, T, W, T, F, S, S | | + * | | cccccc | Mo, Tu, We, Th, Fr, Su, Sa | | + * | AM, PM | a..aa | AM, PM | | + * | | aaa | am, pm | | + * | | aaaa | a.m., p.m. | 2 | + * | | aaaaa | a, p | | + * | AM, PM, noon, midnight | b..bb | AM, PM, noon, midnight | | + * | | bbb | am, pm, noon, midnight | | + * | | bbbb | a.m., p.m., noon, midnight | 2 | + * | | bbbbb | a, p, n, mi | | + * | Flexible day period | B..BBB | at night, in the morning, ... | | + * | | BBBB | at night, in the morning, ... | 2 | + * | | BBBBB | at night, in the morning, ... | | + * | Hour [1-12] | h | 1, 2, ..., 11, 12 | | + * | | ho | 1st, 2nd, ..., 11th, 12th | 7 | + * | | hh | 01, 02, ..., 11, 12 | | + * | Hour [0-23] | H | 0, 1, 2, ..., 23 | | + * | | Ho | 0th, 1st, 2nd, ..., 23rd | 7 | + * | | HH | 00, 01, 02, ..., 23 | | + * | Hour [0-11] | K | 1, 2, ..., 11, 0 | | + * | | Ko | 1st, 2nd, ..., 11th, 0th | 7 | + * | | KK | 01, 02, ..., 11, 00 | | + * | Hour [1-24] | k | 24, 1, 2, ..., 23 | | + * | | ko | 24th, 1st, 2nd, ..., 23rd | 7 | + * | | kk | 24, 01, 02, ..., 23 | | + * | Minute | m | 0, 1, ..., 59 | | + * | | mo | 0th, 1st, ..., 59th | 7 | + * | | mm | 00, 01, ..., 59 | | + * | Second | s | 0, 1, ..., 59 | | + * | | so | 0th, 1st, ..., 59th | 7 | + * | | ss | 00, 01, ..., 59 | | + * | Fraction of second | S | 0, 1, ..., 9 | | + * | | SS | 00, 01, ..., 99 | | + * | | SSS | 000, 0001, ..., 999 | | + * | | SSSS | ... | 3 | + * | Timezone (ISO-8601 w/ Z) | X | -08, +0530, Z | | + * | | XX | -0800, +0530, Z | | + * | | XXX | -08:00, +05:30, Z | | + * | | XXXX | -0800, +0530, Z, +123456 | 2 | + * | | XXXXX | -08:00, +05:30, Z, +12:34:56 | | + * | Timezone (ISO-8601 w/o Z) | x | -08, +0530, +00 | | + * | | xx | -0800, +0530, +0000 | | + * | | xxx | -08:00, +05:30, +00:00 | 2 | + * | | xxxx | -0800, +0530, +0000, +123456 | | + * | | xxxxx | -08:00, +05:30, +00:00, +12:34:56 | | + * | Timezone (GMT) | O...OOO | GMT-8, GMT+5:30, GMT+0 | | + * | | OOOO | GMT-08:00, GMT+05:30, GMT+00:00 | 2 | + * | Timezone (specific non-locat.) | z...zzz | GMT-8, GMT+5:30, GMT+0 | 6 | + * | | zzzz | GMT-08:00, GMT+05:30, GMT+00:00 | 2,6 | + * | Seconds timestamp | t | 512969520 | 7 | + * | | tt | ... | 3,7 | + * | Milliseconds timestamp | T | 512969520900 | 7 | + * | | TT | ... | 3,7 | + * | Long localized date | P | 04/29/1453 | 7 | + * | | PP | Apr 29, 1453 | 7 | + * | | PPP | April 29th, 1453 | 7 | + * | | PPPP | Friday, April 29th, 1453 | 2,7 | + * | Long localized time | p | 12:00 AM | 7 | + * | | pp | 12:00:00 AM | 7 | + * | | ppp | 12:00:00 AM GMT+2 | 7 | + * | | pppp | 12:00:00 AM GMT+02:00 | 2,7 | + * | Combination of date and time | Pp | 04/29/1453, 12:00 AM | 7 | + * | | PPpp | Apr 29, 1453, 12:00:00 AM | 7 | + * | | PPPppp | April 29th, 1453 at ... | 7 | + * | | PPPPpppp| Friday, April 29th, 1453 at ... | 2,7 | + * Notes: + * 1. "Formatting" units (e.g. formatting quarter) in the default en-US locale + * are the same as "stand-alone" units, but are different in some languages. + * "Formatting" units are declined according to the rules of the language + * in the context of a date. "Stand-alone" units are always nominative singular: + * + * `format(new Date(2017, 10, 6), 'do LLLL', {locale: cs}) //=> '6. listopad'` + * + * `format(new Date(2017, 10, 6), 'do MMMM', {locale: cs}) //=> '6. listopadu'` + * + * 2. Any sequence of the identical letters is a pattern, unless it is escaped by + * the single quote characters (see below). + * If the sequence is longer than listed in table (e.g. `EEEEEEEEEEE`) + * the output will be the same as default pattern for this unit, usually + * the longest one (in case of ISO weekdays, `EEEE`). Default patterns for units + * are marked with "2" in the last column of the table. + * + * `format(new Date(2017, 10, 6), 'MMM') //=> 'Nov'` + * + * `format(new Date(2017, 10, 6), 'MMMM') //=> 'November'` + * + * `format(new Date(2017, 10, 6), 'MMMMM') //=> 'N'` + * + * `format(new Date(2017, 10, 6), 'MMMMMM') //=> 'November'` + * + * `format(new Date(2017, 10, 6), 'MMMMMMM') //=> 'November'` + * + * 3. Some patterns could be unlimited length (such as `yyyyyyyy`). + * The output will be padded with zeros to match the length of the pattern. + * + * `format(new Date(2017, 10, 6), 'yyyyyyyy') //=> '00002017'` + * + * 4. `QQQQQ` and `qqqqq` could be not strictly numerical in some locales. + * These tokens represent the shortest form of the quarter. + * + * 5. The main difference between `y` and `u` patterns are B.C. years: + * + * | Year | `y` | `u` | + * |------|-----|-----| + * | AC 1 | 1 | 1 | + * | BC 1 | 1 | 0 | + * | BC 2 | 2 | -1 | + * + * Also `yy` always returns the last two digits of a year, + * while `uu` pads single digit years to 2 characters and returns other years unchanged: + * + * | Year | `yy` | `uu` | + * |------|------|------| + * | 1 | 01 | 01 | + * | 14 | 14 | 14 | + * | 376 | 76 | 376 | + * | 1453 | 53 | 1453 | + * + * The same difference is true for local and ISO week-numbering years (`Y` and `R`), + * except local week-numbering years are dependent on `options.weekStartsOn` + * and `options.firstWeekContainsDate` (compare [getISOWeekYear]{@link https://date-fns.org/docs/getISOWeekYear} + * and [getWeekYear]{@link https://date-fns.org/docs/getWeekYear}). + * + * 6. Specific non-location timezones are currently unavailable in `date-fns`, + * so right now these tokens fall back to GMT timezones. + * + * 7. These patterns are not in the Unicode Technical Standard #35: + * - `i`: ISO day of week + * - `I`: ISO week of year + * - `R`: ISO week-numbering year + * - `t`: seconds timestamp + * - `T`: milliseconds timestamp + * - `o`: ordinal number modifier + * - `P`: long localized date + * - `p`: long localized time + * + * 8. `YY` and `YYYY` tokens represent week-numbering years but they are often confused with years. + * You should enable `options.useAdditionalWeekYearTokens` to use them. See: https://git.io/fxCyr + * + * 9. `D` and `DD` tokens represent days of the year but they are ofthen confused with days of the month. + * You should enable `options.useAdditionalDayOfYearTokens` to use them. See: https://git.io/fxCyr + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * - The second argument is now required for the sake of explicitness. + * + * ```javascript + * // Before v2.0.0 + * format(new Date(2016, 0, 1)) + * + * // v2.0.0 onward + * format(new Date(2016, 0, 1), "yyyy-MM-dd'T'HH:mm:ss.SSSxxx") + * ``` + * + * - New format string API for `format` function + * which is based on [Unicode Technical Standard #35](https://www.unicode.org/reports/tr35/tr35-dates.html#Date_Field_Symbol_Table). + * See [this post](https://blog.date-fns.org/post/unicode-tokens-in-date-fns-v2-sreatyki91jg) for more details. + * + * - Characters are now escaped using single quote symbols (`'`) instead of square brackets. + * + * @param {Date|Number} date - the original date + * @param {String} format - the string of tokens + * @param {Object} [options] - an object with options. + * @param {Locale} [options.locale=defaultLocale] - the locale object. See [Locale]{@link https://date-fns.org/docs/Locale} + * @param {0|1|2|3|4|5|6} [options.weekStartsOn=0] - the index of the first day of the week (0 - Sunday) + * @param {Number} [options.firstWeekContainsDate=1] - the day of January, which is + * @param {Boolean} [options.useAdditionalWeekYearTokens=false] - if true, allows usage of the week-numbering year tokens `YY` and `YYYY`; + * see: https://git.io/fxCyr + * @param {Boolean} [options.useAdditionalDayOfYearTokens=false] - if true, allows usage of the day of year tokens `D` and `DD`; + * see: https://git.io/fxCyr + * @returns {String} the formatted date string + * @throws {TypeError} 2 arguments required + * @throws {RangeError} `date` must not be Invalid Date + * @throws {RangeError} `options.locale` must contain `localize` property + * @throws {RangeError} `options.locale` must contain `formatLong` property + * @throws {RangeError} `options.weekStartsOn` must be between 0 and 6 + * @throws {RangeError} `options.firstWeekContainsDate` must be between 1 and 7 + * @throws {RangeError} use `yyyy` instead of `YYYY` for formatting years using [format provided] to the input [input provided]; see: https://git.io/fxCyr + * @throws {RangeError} use `yy` instead of `YY` for formatting years using [format provided] to the input [input provided]; see: https://git.io/fxCyr + * @throws {RangeError} use `d` instead of `D` for formatting days of the month using [format provided] to the input [input provided]; see: https://git.io/fxCyr + * @throws {RangeError} use `dd` instead of `DD` for formatting days of the month using [format provided] to the input [input provided]; see: https://git.io/fxCyr + * @throws {RangeError} format string contains an unescaped latin alphabet character + * + * @example + * // Represent 11 February 2014 in middle-endian format: + * var result = format(new Date(2014, 1, 11), 'MM/dd/yyyy') + * //=> '02/11/2014' + * + * @example + * // Represent 2 July 2014 in Esperanto: + * import { eoLocale } from 'date-fns/locale/eo' + * var result = format(new Date(2014, 6, 2), "do 'de' MMMM yyyy", { + * locale: eoLocale + * }) + * //=> '2-a de julio 2014' + * + * @example + * // Escape string by single quote characters: + * var result = format(new Date(2014, 6, 2, 15), "h 'o''clock'") + * //=> "3 o'clock" + */ + +function format(dirtyDate, dirtyFormatStr, dirtyOptions) { + requiredArgs(2, arguments); + var formatStr = String(dirtyFormatStr); + var options = dirtyOptions || {}; + var locale$1 = options.locale || locale; + var localeFirstWeekContainsDate = locale$1.options && locale$1.options.firstWeekContainsDate; + var defaultFirstWeekContainsDate = localeFirstWeekContainsDate == null ? 1 : toInteger(localeFirstWeekContainsDate); + var firstWeekContainsDate = options.firstWeekContainsDate == null ? defaultFirstWeekContainsDate : toInteger(options.firstWeekContainsDate); // Test if weekStartsOn is between 1 and 7 _and_ is not NaN + + if (!(firstWeekContainsDate >= 1 && firstWeekContainsDate <= 7)) { + throw new RangeError('firstWeekContainsDate must be between 1 and 7 inclusively'); + } + + var localeWeekStartsOn = locale$1.options && locale$1.options.weekStartsOn; + var defaultWeekStartsOn = localeWeekStartsOn == null ? 0 : toInteger(localeWeekStartsOn); + var weekStartsOn = options.weekStartsOn == null ? defaultWeekStartsOn : toInteger(options.weekStartsOn); // Test if weekStartsOn is between 0 and 6 _and_ is not NaN + + if (!(weekStartsOn >= 0 && weekStartsOn <= 6)) { + throw new RangeError('weekStartsOn must be between 0 and 6 inclusively'); + } + + if (!locale$1.localize) { + throw new RangeError('locale must contain localize property'); + } + + if (!locale$1.formatLong) { + throw new RangeError('locale must contain formatLong property'); + } + + var originalDate = toDate(dirtyDate); + + if (!isValid(originalDate)) { + throw new RangeError('Invalid time value'); + } // Convert the date in system timezone to the same date in UTC+00:00 timezone. + // This ensures that when UTC functions will be implemented, locales will be compatible with them. + // See an issue about UTC functions: https://github.com/date-fns/date-fns/issues/376 + + + var timezoneOffset = getTimezoneOffsetInMilliseconds(originalDate); + var utcDate = subMilliseconds(originalDate, timezoneOffset); + var formatterOptions = { + firstWeekContainsDate: firstWeekContainsDate, + weekStartsOn: weekStartsOn, + locale: locale$1, + _originalDate: originalDate + }; + var result = formatStr.match(longFormattingTokensRegExp$1).map(function (substring) { + var firstCharacter = substring[0]; + + if (firstCharacter === 'p' || firstCharacter === 'P') { + var longFormatter = longFormatters[firstCharacter]; + return longFormatter(substring, locale$1.formatLong, formatterOptions); + } + + return substring; + }).join('').match(formattingTokensRegExp$1).map(function (substring) { + // Replace two single quote characters with one single quote character + if (substring === "''") { + return "'"; + } + + var firstCharacter = substring[0]; + + if (firstCharacter === "'") { + return cleanEscapedString$1(substring); + } + + var formatter = formatters[firstCharacter]; + + if (formatter) { + if (!options.useAdditionalWeekYearTokens && isProtectedWeekYearToken(substring)) { + throwProtectedError(substring, dirtyFormatStr, dirtyDate); + } + + if (!options.useAdditionalDayOfYearTokens && isProtectedDayOfYearToken(substring)) { + throwProtectedError(substring, dirtyFormatStr, dirtyDate); + } + + return formatter(utcDate, substring, locale$1.localize, formatterOptions); + } + + if (firstCharacter.match(unescapedLatinCharacterRegExp$1)) { + throw new RangeError('Format string contains an unescaped latin alphabet character `' + firstCharacter + '`'); + } + + return substring; + }).join(''); + return result; +} + +function cleanEscapedString$1(input) { + return input.match(escapedStringRegExp$1)[1].replace(doubleQuoteRegExp$1, "'"); +} + +function assign(target, dirtyObject) { + if (target == null) { + throw new TypeError('assign requires that input parameter not be null or undefined'); + } + + dirtyObject = dirtyObject || {}; + + for (var property in dirtyObject) { + if (dirtyObject.hasOwnProperty(property)) { + target[property] = dirtyObject[property]; + } + } + + return target; +} + +// See issue: https://github.com/date-fns/date-fns/issues/376 + +function setUTCDay(dirtyDate, dirtyDay, dirtyOptions) { + requiredArgs(2, arguments); + var options = dirtyOptions || {}; + var locale = options.locale; + var localeWeekStartsOn = locale && locale.options && locale.options.weekStartsOn; + var defaultWeekStartsOn = localeWeekStartsOn == null ? 0 : toInteger(localeWeekStartsOn); + var weekStartsOn = options.weekStartsOn == null ? defaultWeekStartsOn : toInteger(options.weekStartsOn); // Test if weekStartsOn is between 0 and 6 _and_ is not NaN + + if (!(weekStartsOn >= 0 && weekStartsOn <= 6)) { + throw new RangeError('weekStartsOn must be between 0 and 6 inclusively'); + } + + var date = toDate(dirtyDate); + var day = toInteger(dirtyDay); + var currentDay = date.getUTCDay(); + var remainder = day % 7; + var dayIndex = (remainder + 7) % 7; + var diff = (dayIndex < weekStartsOn ? 7 : 0) + day - currentDay; + date.setUTCDate(date.getUTCDate() + diff); + return date; +} + +// See issue: https://github.com/date-fns/date-fns/issues/376 + +function setUTCISODay(dirtyDate, dirtyDay) { + requiredArgs(2, arguments); + var day = toInteger(dirtyDay); + + if (day % 7 === 0) { + day = day - 7; + } + + var weekStartsOn = 1; + var date = toDate(dirtyDate); + var currentDay = date.getUTCDay(); + var remainder = day % 7; + var dayIndex = (remainder + 7) % 7; + var diff = (dayIndex < weekStartsOn ? 7 : 0) + day - currentDay; + date.setUTCDate(date.getUTCDate() + diff); + return date; +} + +// See issue: https://github.com/date-fns/date-fns/issues/376 + +function setUTCISOWeek(dirtyDate, dirtyISOWeek) { + requiredArgs(2, arguments); + var date = toDate(dirtyDate); + var isoWeek = toInteger(dirtyISOWeek); + var diff = getUTCISOWeek(date) - isoWeek; + date.setUTCDate(date.getUTCDate() - diff * 7); + return date; +} + +// See issue: https://github.com/date-fns/date-fns/issues/376 + +function setUTCWeek(dirtyDate, dirtyWeek, options) { + requiredArgs(2, arguments); + var date = toDate(dirtyDate); + var week = toInteger(dirtyWeek); + var diff = getUTCWeek(date, options) - week; + date.setUTCDate(date.getUTCDate() - diff * 7); + return date; +} + +var MILLISECONDS_IN_HOUR$1 = 3600000; +var MILLISECONDS_IN_MINUTE$1 = 60000; +var MILLISECONDS_IN_SECOND = 1000; +var numericPatterns = { + month: /^(1[0-2]|0?\d)/, + // 0 to 12 + date: /^(3[0-1]|[0-2]?\d)/, + // 0 to 31 + dayOfYear: /^(36[0-6]|3[0-5]\d|[0-2]?\d?\d)/, + // 0 to 366 + week: /^(5[0-3]|[0-4]?\d)/, + // 0 to 53 + hour23h: /^(2[0-3]|[0-1]?\d)/, + // 0 to 23 + hour24h: /^(2[0-4]|[0-1]?\d)/, + // 0 to 24 + hour11h: /^(1[0-1]|0?\d)/, + // 0 to 11 + hour12h: /^(1[0-2]|0?\d)/, + // 0 to 12 + minute: /^[0-5]?\d/, + // 0 to 59 + second: /^[0-5]?\d/, + // 0 to 59 + singleDigit: /^\d/, + // 0 to 9 + twoDigits: /^\d{1,2}/, + // 0 to 99 + threeDigits: /^\d{1,3}/, + // 0 to 999 + fourDigits: /^\d{1,4}/, + // 0 to 9999 + anyDigitsSigned: /^-?\d+/, + singleDigitSigned: /^-?\d/, + // 0 to 9, -0 to -9 + twoDigitsSigned: /^-?\d{1,2}/, + // 0 to 99, -0 to -99 + threeDigitsSigned: /^-?\d{1,3}/, + // 0 to 999, -0 to -999 + fourDigitsSigned: /^-?\d{1,4}/ // 0 to 9999, -0 to -9999 + +}; +var timezonePatterns = { + basicOptionalMinutes: /^([+-])(\d{2})(\d{2})?|Z/, + basic: /^([+-])(\d{2})(\d{2})|Z/, + basicOptionalSeconds: /^([+-])(\d{2})(\d{2})((\d{2}))?|Z/, + extended: /^([+-])(\d{2}):(\d{2})|Z/, + extendedOptionalSeconds: /^([+-])(\d{2}):(\d{2})(:(\d{2}))?|Z/ +}; + +function parseNumericPattern(pattern, string, valueCallback) { + var matchResult = string.match(pattern); + + if (!matchResult) { + return null; + } + + var value = parseInt(matchResult[0], 10); + return { + value: valueCallback ? valueCallback(value) : value, + rest: string.slice(matchResult[0].length) + }; +} + +function parseTimezonePattern(pattern, string) { + var matchResult = string.match(pattern); + + if (!matchResult) { + return null; + } // Input is 'Z' + + + if (matchResult[0] === 'Z') { + return { + value: 0, + rest: string.slice(1) + }; + } + + var sign = matchResult[1] === '+' ? 1 : -1; + var hours = matchResult[2] ? parseInt(matchResult[2], 10) : 0; + var minutes = matchResult[3] ? parseInt(matchResult[3], 10) : 0; + var seconds = matchResult[5] ? parseInt(matchResult[5], 10) : 0; + return { + value: sign * (hours * MILLISECONDS_IN_HOUR$1 + minutes * MILLISECONDS_IN_MINUTE$1 + seconds * MILLISECONDS_IN_SECOND), + rest: string.slice(matchResult[0].length) + }; +} + +function parseAnyDigitsSigned(string, valueCallback) { + return parseNumericPattern(numericPatterns.anyDigitsSigned, string, valueCallback); +} + +function parseNDigits(n, string, valueCallback) { + switch (n) { + case 1: + return parseNumericPattern(numericPatterns.singleDigit, string, valueCallback); + + case 2: + return parseNumericPattern(numericPatterns.twoDigits, string, valueCallback); + + case 3: + return parseNumericPattern(numericPatterns.threeDigits, string, valueCallback); + + case 4: + return parseNumericPattern(numericPatterns.fourDigits, string, valueCallback); + + default: + return parseNumericPattern(new RegExp('^\\d{1,' + n + '}'), string, valueCallback); + } +} + +function parseNDigitsSigned(n, string, valueCallback) { + switch (n) { + case 1: + return parseNumericPattern(numericPatterns.singleDigitSigned, string, valueCallback); + + case 2: + return parseNumericPattern(numericPatterns.twoDigitsSigned, string, valueCallback); + + case 3: + return parseNumericPattern(numericPatterns.threeDigitsSigned, string, valueCallback); + + case 4: + return parseNumericPattern(numericPatterns.fourDigitsSigned, string, valueCallback); + + default: + return parseNumericPattern(new RegExp('^-?\\d{1,' + n + '}'), string, valueCallback); + } +} + +function dayPeriodEnumToHours(enumValue) { + switch (enumValue) { + case 'morning': + return 4; + + case 'evening': + return 17; + + case 'pm': + case 'noon': + case 'afternoon': + return 12; + + case 'am': + case 'midnight': + case 'night': + default: + return 0; + } +} + +function normalizeTwoDigitYear(twoDigitYear, currentYear) { + var isCommonEra = currentYear > 0; // Absolute number of the current year: + // 1 -> 1 AC + // 0 -> 1 BC + // -1 -> 2 BC + + var absCurrentYear = isCommonEra ? currentYear : 1 - currentYear; + var result; + + if (absCurrentYear <= 50) { + result = twoDigitYear || 100; + } else { + var rangeEnd = absCurrentYear + 50; + var rangeEndCentury = Math.floor(rangeEnd / 100) * 100; + var isPreviousCentury = twoDigitYear >= rangeEnd % 100; + result = twoDigitYear + rangeEndCentury - (isPreviousCentury ? 100 : 0); + } + + return isCommonEra ? result : 1 - result; +} + +var DAYS_IN_MONTH = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]; +var DAYS_IN_MONTH_LEAP_YEAR = [31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]; // User for validation + +function isLeapYearIndex$1(year) { + return year % 400 === 0 || year % 4 === 0 && year % 100 !== 0; +} +/* + * | | Unit | | Unit | + * |-----|--------------------------------|-----|--------------------------------| + * | a | AM, PM | A* | Milliseconds in day | + * | b | AM, PM, noon, midnight | B | Flexible day period | + * | c | Stand-alone local day of week | C* | Localized hour w/ day period | + * | d | Day of month | D | Day of year | + * | e | Local day of week | E | Day of week | + * | f | | F* | Day of week in month | + * | g* | Modified Julian day | G | Era | + * | h | Hour [1-12] | H | Hour [0-23] | + * | i! | ISO day of week | I! | ISO week of year | + * | j* | Localized hour w/ day period | J* | Localized hour w/o day period | + * | k | Hour [1-24] | K | Hour [0-11] | + * | l* | (deprecated) | L | Stand-alone month | + * | m | Minute | M | Month | + * | n | | N | | + * | o! | Ordinal number modifier | O* | Timezone (GMT) | + * | p | | P | | + * | q | Stand-alone quarter | Q | Quarter | + * | r* | Related Gregorian year | R! | ISO week-numbering year | + * | s | Second | S | Fraction of second | + * | t! | Seconds timestamp | T! | Milliseconds timestamp | + * | u | Extended year | U* | Cyclic year | + * | v* | Timezone (generic non-locat.) | V* | Timezone (location) | + * | w | Local week of year | W* | Week of month | + * | x | Timezone (ISO-8601 w/o Z) | X | Timezone (ISO-8601) | + * | y | Year (abs) | Y | Local week-numbering year | + * | z* | Timezone (specific non-locat.) | Z* | Timezone (aliases) | + * + * Letters marked by * are not implemented but reserved by Unicode standard. + * + * Letters marked by ! are non-standard, but implemented by date-fns: + * - `o` modifies the previous token to turn it into an ordinal (see `parse` docs) + * - `i` is ISO day of week. For `i` and `ii` is returns numeric ISO week days, + * i.e. 7 for Sunday, 1 for Monday, etc. + * - `I` is ISO week of year, as opposed to `w` which is local week of year. + * - `R` is ISO week-numbering year, as opposed to `Y` which is local week-numbering year. + * `R` is supposed to be used in conjunction with `I` and `i` + * for universal ISO week-numbering date, whereas + * `Y` is supposed to be used in conjunction with `w` and `e` + * for week-numbering date specific to the locale. + */ + + +var parsers = { + // Era + G: { + priority: 140, + parse: function (string, token, match, _options) { + switch (token) { + // AD, BC + case 'G': + case 'GG': + case 'GGG': + return match.era(string, { + width: 'abbreviated' + }) || match.era(string, { + width: 'narrow' + }); + // A, B + + case 'GGGGG': + return match.era(string, { + width: 'narrow' + }); + // Anno Domini, Before Christ + + case 'GGGG': + default: + return match.era(string, { + width: 'wide' + }) || match.era(string, { + width: 'abbreviated' + }) || match.era(string, { + width: 'narrow' + }); + } + }, + set: function (date, flags, value, _options) { + flags.era = value; + date.setUTCFullYear(value, 0, 1); + date.setUTCHours(0, 0, 0, 0); + return date; + }, + incompatibleTokens: ['R', 'u', 't', 'T'] + }, + // Year + y: { + // From http://www.unicode.org/reports/tr35/tr35-31/tr35-dates.html#Date_Format_Patterns + // | Year | y | yy | yyy | yyyy | yyyyy | + // |----------|-------|----|-------|-------|-------| + // | AD 1 | 1 | 01 | 001 | 0001 | 00001 | + // | AD 12 | 12 | 12 | 012 | 0012 | 00012 | + // | AD 123 | 123 | 23 | 123 | 0123 | 00123 | + // | AD 1234 | 1234 | 34 | 1234 | 1234 | 01234 | + // | AD 12345 | 12345 | 45 | 12345 | 12345 | 12345 | + priority: 130, + parse: function (string, token, match, _options) { + var valueCallback = function (year) { + return { + year: year, + isTwoDigitYear: token === 'yy' + }; + }; + + switch (token) { + case 'y': + return parseNDigits(4, string, valueCallback); + + case 'yo': + return match.ordinalNumber(string, { + unit: 'year', + valueCallback: valueCallback + }); + + default: + return parseNDigits(token.length, string, valueCallback); + } + }, + validate: function (_date, value, _options) { + return value.isTwoDigitYear || value.year > 0; + }, + set: function (date, flags, value, _options) { + var currentYear = date.getUTCFullYear(); + + if (value.isTwoDigitYear) { + var normalizedTwoDigitYear = normalizeTwoDigitYear(value.year, currentYear); + date.setUTCFullYear(normalizedTwoDigitYear, 0, 1); + date.setUTCHours(0, 0, 0, 0); + return date; + } + + var year = !('era' in flags) || flags.era === 1 ? value.year : 1 - value.year; + date.setUTCFullYear(year, 0, 1); + date.setUTCHours(0, 0, 0, 0); + return date; + }, + incompatibleTokens: ['Y', 'R', 'u', 'w', 'I', 'i', 'e', 'c', 't', 'T'] + }, + // Local week-numbering year + Y: { + priority: 130, + parse: function (string, token, match, _options) { + var valueCallback = function (year) { + return { + year: year, + isTwoDigitYear: token === 'YY' + }; + }; + + switch (token) { + case 'Y': + return parseNDigits(4, string, valueCallback); + + case 'Yo': + return match.ordinalNumber(string, { + unit: 'year', + valueCallback: valueCallback + }); + + default: + return parseNDigits(token.length, string, valueCallback); + } + }, + validate: function (_date, value, _options) { + return value.isTwoDigitYear || value.year > 0; + }, + set: function (date, flags, value, options) { + var currentYear = getUTCWeekYear(date, options); + + if (value.isTwoDigitYear) { + var normalizedTwoDigitYear = normalizeTwoDigitYear(value.year, currentYear); + date.setUTCFullYear(normalizedTwoDigitYear, 0, options.firstWeekContainsDate); + date.setUTCHours(0, 0, 0, 0); + return startOfUTCWeek(date, options); + } + + var year = !('era' in flags) || flags.era === 1 ? value.year : 1 - value.year; + date.setUTCFullYear(year, 0, options.firstWeekContainsDate); + date.setUTCHours(0, 0, 0, 0); + return startOfUTCWeek(date, options); + }, + incompatibleTokens: ['y', 'R', 'u', 'Q', 'q', 'M', 'L', 'I', 'd', 'D', 'i', 't', 'T'] + }, + // ISO week-numbering year + R: { + priority: 130, + parse: function (string, token, _match, _options) { + if (token === 'R') { + return parseNDigitsSigned(4, string); + } + + return parseNDigitsSigned(token.length, string); + }, + set: function (_date, _flags, value, _options) { + var firstWeekOfYear = new Date(0); + firstWeekOfYear.setUTCFullYear(value, 0, 4); + firstWeekOfYear.setUTCHours(0, 0, 0, 0); + return startOfUTCISOWeek(firstWeekOfYear); + }, + incompatibleTokens: ['G', 'y', 'Y', 'u', 'Q', 'q', 'M', 'L', 'w', 'd', 'D', 'e', 'c', 't', 'T'] + }, + // Extended year + u: { + priority: 130, + parse: function (string, token, _match, _options) { + if (token === 'u') { + return parseNDigitsSigned(4, string); + } + + return parseNDigitsSigned(token.length, string); + }, + set: function (date, _flags, value, _options) { + date.setUTCFullYear(value, 0, 1); + date.setUTCHours(0, 0, 0, 0); + return date; + }, + incompatibleTokens: ['G', 'y', 'Y', 'R', 'w', 'I', 'i', 'e', 'c', 't', 'T'] + }, + // Quarter + Q: { + priority: 120, + parse: function (string, token, match, _options) { + switch (token) { + // 1, 2, 3, 4 + case 'Q': + case 'QQ': + // 01, 02, 03, 04 + return parseNDigits(token.length, string); + // 1st, 2nd, 3rd, 4th + + case 'Qo': + return match.ordinalNumber(string, { + unit: 'quarter' + }); + // Q1, Q2, Q3, Q4 + + case 'QQQ': + return match.quarter(string, { + width: 'abbreviated', + context: 'formatting' + }) || match.quarter(string, { + width: 'narrow', + context: 'formatting' + }); + // 1, 2, 3, 4 (narrow quarter; could be not numerical) + + case 'QQQQQ': + return match.quarter(string, { + width: 'narrow', + context: 'formatting' + }); + // 1st quarter, 2nd quarter, ... + + case 'QQQQ': + default: + return match.quarter(string, { + width: 'wide', + context: 'formatting' + }) || match.quarter(string, { + width: 'abbreviated', + context: 'formatting' + }) || match.quarter(string, { + width: 'narrow', + context: 'formatting' + }); + } + }, + validate: function (_date, value, _options) { + return value >= 1 && value <= 4; + }, + set: function (date, _flags, value, _options) { + date.setUTCMonth((value - 1) * 3, 1); + date.setUTCHours(0, 0, 0, 0); + return date; + }, + incompatibleTokens: ['Y', 'R', 'q', 'M', 'L', 'w', 'I', 'd', 'D', 'i', 'e', 'c', 't', 'T'] + }, + // Stand-alone quarter + q: { + priority: 120, + parse: function (string, token, match, _options) { + switch (token) { + // 1, 2, 3, 4 + case 'q': + case 'qq': + // 01, 02, 03, 04 + return parseNDigits(token.length, string); + // 1st, 2nd, 3rd, 4th + + case 'qo': + return match.ordinalNumber(string, { + unit: 'quarter' + }); + // Q1, Q2, Q3, Q4 + + case 'qqq': + return match.quarter(string, { + width: 'abbreviated', + context: 'standalone' + }) || match.quarter(string, { + width: 'narrow', + context: 'standalone' + }); + // 1, 2, 3, 4 (narrow quarter; could be not numerical) + + case 'qqqqq': + return match.quarter(string, { + width: 'narrow', + context: 'standalone' + }); + // 1st quarter, 2nd quarter, ... + + case 'qqqq': + default: + return match.quarter(string, { + width: 'wide', + context: 'standalone' + }) || match.quarter(string, { + width: 'abbreviated', + context: 'standalone' + }) || match.quarter(string, { + width: 'narrow', + context: 'standalone' + }); + } + }, + validate: function (_date, value, _options) { + return value >= 1 && value <= 4; + }, + set: function (date, _flags, value, _options) { + date.setUTCMonth((value - 1) * 3, 1); + date.setUTCHours(0, 0, 0, 0); + return date; + }, + incompatibleTokens: ['Y', 'R', 'Q', 'M', 'L', 'w', 'I', 'd', 'D', 'i', 'e', 'c', 't', 'T'] + }, + // Month + M: { + priority: 110, + parse: function (string, token, match, _options) { + var valueCallback = function (value) { + return value - 1; + }; + + switch (token) { + // 1, 2, ..., 12 + case 'M': + return parseNumericPattern(numericPatterns.month, string, valueCallback); + // 01, 02, ..., 12 + + case 'MM': + return parseNDigits(2, string, valueCallback); + // 1st, 2nd, ..., 12th + + case 'Mo': + return match.ordinalNumber(string, { + unit: 'month', + valueCallback: valueCallback + }); + // Jan, Feb, ..., Dec + + case 'MMM': + return match.month(string, { + width: 'abbreviated', + context: 'formatting' + }) || match.month(string, { + width: 'narrow', + context: 'formatting' + }); + // J, F, ..., D + + case 'MMMMM': + return match.month(string, { + width: 'narrow', + context: 'formatting' + }); + // January, February, ..., December + + case 'MMMM': + default: + return match.month(string, { + width: 'wide', + context: 'formatting' + }) || match.month(string, { + width: 'abbreviated', + context: 'formatting' + }) || match.month(string, { + width: 'narrow', + context: 'formatting' + }); + } + }, + validate: function (_date, value, _options) { + return value >= 0 && value <= 11; + }, + set: function (date, _flags, value, _options) { + date.setUTCMonth(value, 1); + date.setUTCHours(0, 0, 0, 0); + return date; + }, + incompatibleTokens: ['Y', 'R', 'q', 'Q', 'L', 'w', 'I', 'D', 'i', 'e', 'c', 't', 'T'] + }, + // Stand-alone month + L: { + priority: 110, + parse: function (string, token, match, _options) { + var valueCallback = function (value) { + return value - 1; + }; + + switch (token) { + // 1, 2, ..., 12 + case 'L': + return parseNumericPattern(numericPatterns.month, string, valueCallback); + // 01, 02, ..., 12 + + case 'LL': + return parseNDigits(2, string, valueCallback); + // 1st, 2nd, ..., 12th + + case 'Lo': + return match.ordinalNumber(string, { + unit: 'month', + valueCallback: valueCallback + }); + // Jan, Feb, ..., Dec + + case 'LLL': + return match.month(string, { + width: 'abbreviated', + context: 'standalone' + }) || match.month(string, { + width: 'narrow', + context: 'standalone' + }); + // J, F, ..., D + + case 'LLLLL': + return match.month(string, { + width: 'narrow', + context: 'standalone' + }); + // January, February, ..., December + + case 'LLLL': + default: + return match.month(string, { + width: 'wide', + context: 'standalone' + }) || match.month(string, { + width: 'abbreviated', + context: 'standalone' + }) || match.month(string, { + width: 'narrow', + context: 'standalone' + }); + } + }, + validate: function (_date, value, _options) { + return value >= 0 && value <= 11; + }, + set: function (date, _flags, value, _options) { + date.setUTCMonth(value, 1); + date.setUTCHours(0, 0, 0, 0); + return date; + }, + incompatibleTokens: ['Y', 'R', 'q', 'Q', 'M', 'w', 'I', 'D', 'i', 'e', 'c', 't', 'T'] + }, + // Local week of year + w: { + priority: 100, + parse: function (string, token, match, _options) { + switch (token) { + case 'w': + return parseNumericPattern(numericPatterns.week, string); + + case 'wo': + return match.ordinalNumber(string, { + unit: 'week' + }); + + default: + return parseNDigits(token.length, string); + } + }, + validate: function (_date, value, _options) { + return value >= 1 && value <= 53; + }, + set: function (date, _flags, value, options) { + return startOfUTCWeek(setUTCWeek(date, value, options), options); + }, + incompatibleTokens: ['y', 'R', 'u', 'q', 'Q', 'M', 'L', 'I', 'd', 'D', 'i', 't', 'T'] + }, + // ISO week of year + I: { + priority: 100, + parse: function (string, token, match, _options) { + switch (token) { + case 'I': + return parseNumericPattern(numericPatterns.week, string); + + case 'Io': + return match.ordinalNumber(string, { + unit: 'week' + }); + + default: + return parseNDigits(token.length, string); + } + }, + validate: function (_date, value, _options) { + return value >= 1 && value <= 53; + }, + set: function (date, _flags, value, options) { + return startOfUTCISOWeek(setUTCISOWeek(date, value, options), options); + }, + incompatibleTokens: ['y', 'Y', 'u', 'q', 'Q', 'M', 'L', 'w', 'd', 'D', 'e', 'c', 't', 'T'] + }, + // Day of the month + d: { + priority: 90, + subPriority: 1, + parse: function (string, token, match, _options) { + switch (token) { + case 'd': + return parseNumericPattern(numericPatterns.date, string); + + case 'do': + return match.ordinalNumber(string, { + unit: 'date' + }); + + default: + return parseNDigits(token.length, string); + } + }, + validate: function (date, value, _options) { + var year = date.getUTCFullYear(); + var isLeapYear = isLeapYearIndex$1(year); + var month = date.getUTCMonth(); + + if (isLeapYear) { + return value >= 1 && value <= DAYS_IN_MONTH_LEAP_YEAR[month]; + } else { + return value >= 1 && value <= DAYS_IN_MONTH[month]; + } + }, + set: function (date, _flags, value, _options) { + date.setUTCDate(value); + date.setUTCHours(0, 0, 0, 0); + return date; + }, + incompatibleTokens: ['Y', 'R', 'q', 'Q', 'w', 'I', 'D', 'i', 'e', 'c', 't', 'T'] + }, + // Day of year + D: { + priority: 90, + subPriority: 1, + parse: function (string, token, match, _options) { + switch (token) { + case 'D': + case 'DD': + return parseNumericPattern(numericPatterns.dayOfYear, string); + + case 'Do': + return match.ordinalNumber(string, { + unit: 'date' + }); + + default: + return parseNDigits(token.length, string); + } + }, + validate: function (date, value, _options) { + var year = date.getUTCFullYear(); + var isLeapYear = isLeapYearIndex$1(year); + + if (isLeapYear) { + return value >= 1 && value <= 366; + } else { + return value >= 1 && value <= 365; + } + }, + set: function (date, _flags, value, _options) { + date.setUTCMonth(0, value); + date.setUTCHours(0, 0, 0, 0); + return date; + }, + incompatibleTokens: ['Y', 'R', 'q', 'Q', 'M', 'L', 'w', 'I', 'd', 'E', 'i', 'e', 'c', 't', 'T'] + }, + // Day of week + E: { + priority: 90, + parse: function (string, token, match, _options) { + switch (token) { + // Tue + case 'E': + case 'EE': + case 'EEE': + return match.day(string, { + width: 'abbreviated', + context: 'formatting' + }) || match.day(string, { + width: 'short', + context: 'formatting' + }) || match.day(string, { + width: 'narrow', + context: 'formatting' + }); + // T + + case 'EEEEE': + return match.day(string, { + width: 'narrow', + context: 'formatting' + }); + // Tu + + case 'EEEEEE': + return match.day(string, { + width: 'short', + context: 'formatting' + }) || match.day(string, { + width: 'narrow', + context: 'formatting' + }); + // Tuesday + + case 'EEEE': + default: + return match.day(string, { + width: 'wide', + context: 'formatting' + }) || match.day(string, { + width: 'abbreviated', + context: 'formatting' + }) || match.day(string, { + width: 'short', + context: 'formatting' + }) || match.day(string, { + width: 'narrow', + context: 'formatting' + }); + } + }, + validate: function (_date, value, _options) { + return value >= 0 && value <= 6; + }, + set: function (date, _flags, value, options) { + date = setUTCDay(date, value, options); + date.setUTCHours(0, 0, 0, 0); + return date; + }, + incompatibleTokens: ['D', 'i', 'e', 'c', 't', 'T'] + }, + // Local day of week + e: { + priority: 90, + parse: function (string, token, match, options) { + var valueCallback = function (value) { + var wholeWeekDays = Math.floor((value - 1) / 7) * 7; + return (value + options.weekStartsOn + 6) % 7 + wholeWeekDays; + }; + + switch (token) { + // 3 + case 'e': + case 'ee': + // 03 + return parseNDigits(token.length, string, valueCallback); + // 3rd + + case 'eo': + return match.ordinalNumber(string, { + unit: 'day', + valueCallback: valueCallback + }); + // Tue + + case 'eee': + return match.day(string, { + width: 'abbreviated', + context: 'formatting' + }) || match.day(string, { + width: 'short', + context: 'formatting' + }) || match.day(string, { + width: 'narrow', + context: 'formatting' + }); + // T + + case 'eeeee': + return match.day(string, { + width: 'narrow', + context: 'formatting' + }); + // Tu + + case 'eeeeee': + return match.day(string, { + width: 'short', + context: 'formatting' + }) || match.day(string, { + width: 'narrow', + context: 'formatting' + }); + // Tuesday + + case 'eeee': + default: + return match.day(string, { + width: 'wide', + context: 'formatting' + }) || match.day(string, { + width: 'abbreviated', + context: 'formatting' + }) || match.day(string, { + width: 'short', + context: 'formatting' + }) || match.day(string, { + width: 'narrow', + context: 'formatting' + }); + } + }, + validate: function (_date, value, _options) { + return value >= 0 && value <= 6; + }, + set: function (date, _flags, value, options) { + date = setUTCDay(date, value, options); + date.setUTCHours(0, 0, 0, 0); + return date; + }, + incompatibleTokens: ['y', 'R', 'u', 'q', 'Q', 'M', 'L', 'I', 'd', 'D', 'E', 'i', 'c', 't', 'T'] + }, + // Stand-alone local day of week + c: { + priority: 90, + parse: function (string, token, match, options) { + var valueCallback = function (value) { + var wholeWeekDays = Math.floor((value - 1) / 7) * 7; + return (value + options.weekStartsOn + 6) % 7 + wholeWeekDays; + }; + + switch (token) { + // 3 + case 'c': + case 'cc': + // 03 + return parseNDigits(token.length, string, valueCallback); + // 3rd + + case 'co': + return match.ordinalNumber(string, { + unit: 'day', + valueCallback: valueCallback + }); + // Tue + + case 'ccc': + return match.day(string, { + width: 'abbreviated', + context: 'standalone' + }) || match.day(string, { + width: 'short', + context: 'standalone' + }) || match.day(string, { + width: 'narrow', + context: 'standalone' + }); + // T + + case 'ccccc': + return match.day(string, { + width: 'narrow', + context: 'standalone' + }); + // Tu + + case 'cccccc': + return match.day(string, { + width: 'short', + context: 'standalone' + }) || match.day(string, { + width: 'narrow', + context: 'standalone' + }); + // Tuesday + + case 'cccc': + default: + return match.day(string, { + width: 'wide', + context: 'standalone' + }) || match.day(string, { + width: 'abbreviated', + context: 'standalone' + }) || match.day(string, { + width: 'short', + context: 'standalone' + }) || match.day(string, { + width: 'narrow', + context: 'standalone' + }); + } + }, + validate: function (_date, value, _options) { + return value >= 0 && value <= 6; + }, + set: function (date, _flags, value, options) { + date = setUTCDay(date, value, options); + date.setUTCHours(0, 0, 0, 0); + return date; + }, + incompatibleTokens: ['y', 'R', 'u', 'q', 'Q', 'M', 'L', 'I', 'd', 'D', 'E', 'i', 'e', 't', 'T'] + }, + // ISO day of week + i: { + priority: 90, + parse: function (string, token, match, _options) { + var valueCallback = function (value) { + if (value === 0) { + return 7; + } + + return value; + }; + + switch (token) { + // 2 + case 'i': + case 'ii': + // 02 + return parseNDigits(token.length, string); + // 2nd + + case 'io': + return match.ordinalNumber(string, { + unit: 'day' + }); + // Tue + + case 'iii': + return match.day(string, { + width: 'abbreviated', + context: 'formatting', + valueCallback: valueCallback + }) || match.day(string, { + width: 'short', + context: 'formatting', + valueCallback: valueCallback + }) || match.day(string, { + width: 'narrow', + context: 'formatting', + valueCallback: valueCallback + }); + // T + + case 'iiiii': + return match.day(string, { + width: 'narrow', + context: 'formatting', + valueCallback: valueCallback + }); + // Tu + + case 'iiiiii': + return match.day(string, { + width: 'short', + context: 'formatting', + valueCallback: valueCallback + }) || match.day(string, { + width: 'narrow', + context: 'formatting', + valueCallback: valueCallback + }); + // Tuesday + + case 'iiii': + default: + return match.day(string, { + width: 'wide', + context: 'formatting', + valueCallback: valueCallback + }) || match.day(string, { + width: 'abbreviated', + context: 'formatting', + valueCallback: valueCallback + }) || match.day(string, { + width: 'short', + context: 'formatting', + valueCallback: valueCallback + }) || match.day(string, { + width: 'narrow', + context: 'formatting', + valueCallback: valueCallback + }); + } + }, + validate: function (_date, value, _options) { + return value >= 1 && value <= 7; + }, + set: function (date, _flags, value, options) { + date = setUTCISODay(date, value, options); + date.setUTCHours(0, 0, 0, 0); + return date; + }, + incompatibleTokens: ['y', 'Y', 'u', 'q', 'Q', 'M', 'L', 'w', 'd', 'D', 'E', 'e', 'c', 't', 'T'] + }, + // AM or PM + a: { + priority: 80, + parse: function (string, token, match, _options) { + switch (token) { + case 'a': + case 'aa': + case 'aaa': + return match.dayPeriod(string, { + width: 'abbreviated', + context: 'formatting' + }) || match.dayPeriod(string, { + width: 'narrow', + context: 'formatting' + }); + + case 'aaaaa': + return match.dayPeriod(string, { + width: 'narrow', + context: 'formatting' + }); + + case 'aaaa': + default: + return match.dayPeriod(string, { + width: 'wide', + context: 'formatting' + }) || match.dayPeriod(string, { + width: 'abbreviated', + context: 'formatting' + }) || match.dayPeriod(string, { + width: 'narrow', + context: 'formatting' + }); + } + }, + set: function (date, _flags, value, _options) { + date.setUTCHours(dayPeriodEnumToHours(value), 0, 0, 0); + return date; + }, + incompatibleTokens: ['b', 'B', 'H', 'K', 'k', 't', 'T'] + }, + // AM, PM, midnight + b: { + priority: 80, + parse: function (string, token, match, _options) { + switch (token) { + case 'b': + case 'bb': + case 'bbb': + return match.dayPeriod(string, { + width: 'abbreviated', + context: 'formatting' + }) || match.dayPeriod(string, { + width: 'narrow', + context: 'formatting' + }); + + case 'bbbbb': + return match.dayPeriod(string, { + width: 'narrow', + context: 'formatting' + }); + + case 'bbbb': + default: + return match.dayPeriod(string, { + width: 'wide', + context: 'formatting' + }) || match.dayPeriod(string, { + width: 'abbreviated', + context: 'formatting' + }) || match.dayPeriod(string, { + width: 'narrow', + context: 'formatting' + }); + } + }, + set: function (date, _flags, value, _options) { + date.setUTCHours(dayPeriodEnumToHours(value), 0, 0, 0); + return date; + }, + incompatibleTokens: ['a', 'B', 'H', 'K', 'k', 't', 'T'] + }, + // in the morning, in the afternoon, in the evening, at night + B: { + priority: 80, + parse: function (string, token, match, _options) { + switch (token) { + case 'B': + case 'BB': + case 'BBB': + return match.dayPeriod(string, { + width: 'abbreviated', + context: 'formatting' + }) || match.dayPeriod(string, { + width: 'narrow', + context: 'formatting' + }); + + case 'BBBBB': + return match.dayPeriod(string, { + width: 'narrow', + context: 'formatting' + }); + + case 'BBBB': + default: + return match.dayPeriod(string, { + width: 'wide', + context: 'formatting' + }) || match.dayPeriod(string, { + width: 'abbreviated', + context: 'formatting' + }) || match.dayPeriod(string, { + width: 'narrow', + context: 'formatting' + }); + } + }, + set: function (date, _flags, value, _options) { + date.setUTCHours(dayPeriodEnumToHours(value), 0, 0, 0); + return date; + }, + incompatibleTokens: ['a', 'b', 't', 'T'] + }, + // Hour [1-12] + h: { + priority: 70, + parse: function (string, token, match, _options) { + switch (token) { + case 'h': + return parseNumericPattern(numericPatterns.hour12h, string); + + case 'ho': + return match.ordinalNumber(string, { + unit: 'hour' + }); + + default: + return parseNDigits(token.length, string); + } + }, + validate: function (_date, value, _options) { + return value >= 1 && value <= 12; + }, + set: function (date, _flags, value, _options) { + var isPM = date.getUTCHours() >= 12; + + if (isPM && value < 12) { + date.setUTCHours(value + 12, 0, 0, 0); + } else if (!isPM && value === 12) { + date.setUTCHours(0, 0, 0, 0); + } else { + date.setUTCHours(value, 0, 0, 0); + } + + return date; + }, + incompatibleTokens: ['H', 'K', 'k', 't', 'T'] + }, + // Hour [0-23] + H: { + priority: 70, + parse: function (string, token, match, _options) { + switch (token) { + case 'H': + return parseNumericPattern(numericPatterns.hour23h, string); + + case 'Ho': + return match.ordinalNumber(string, { + unit: 'hour' + }); + + default: + return parseNDigits(token.length, string); + } + }, + validate: function (_date, value, _options) { + return value >= 0 && value <= 23; + }, + set: function (date, _flags, value, _options) { + date.setUTCHours(value, 0, 0, 0); + return date; + }, + incompatibleTokens: ['a', 'b', 'h', 'K', 'k', 't', 'T'] + }, + // Hour [0-11] + K: { + priority: 70, + parse: function (string, token, match, _options) { + switch (token) { + case 'K': + return parseNumericPattern(numericPatterns.hour11h, string); + + case 'Ko': + return match.ordinalNumber(string, { + unit: 'hour' + }); + + default: + return parseNDigits(token.length, string); + } + }, + validate: function (_date, value, _options) { + return value >= 0 && value <= 11; + }, + set: function (date, _flags, value, _options) { + var isPM = date.getUTCHours() >= 12; + + if (isPM && value < 12) { + date.setUTCHours(value + 12, 0, 0, 0); + } else { + date.setUTCHours(value, 0, 0, 0); + } + + return date; + }, + incompatibleTokens: ['a', 'b', 'h', 'H', 'k', 't', 'T'] + }, + // Hour [1-24] + k: { + priority: 70, + parse: function (string, token, match, _options) { + switch (token) { + case 'k': + return parseNumericPattern(numericPatterns.hour24h, string); + + case 'ko': + return match.ordinalNumber(string, { + unit: 'hour' + }); + + default: + return parseNDigits(token.length, string); + } + }, + validate: function (_date, value, _options) { + return value >= 1 && value <= 24; + }, + set: function (date, _flags, value, _options) { + var hours = value <= 24 ? value % 24 : value; + date.setUTCHours(hours, 0, 0, 0); + return date; + }, + incompatibleTokens: ['a', 'b', 'h', 'H', 'K', 't', 'T'] + }, + // Minute + m: { + priority: 60, + parse: function (string, token, match, _options) { + switch (token) { + case 'm': + return parseNumericPattern(numericPatterns.minute, string); + + case 'mo': + return match.ordinalNumber(string, { + unit: 'minute' + }); + + default: + return parseNDigits(token.length, string); + } + }, + validate: function (_date, value, _options) { + return value >= 0 && value <= 59; + }, + set: function (date, _flags, value, _options) { + date.setUTCMinutes(value, 0, 0); + return date; + }, + incompatibleTokens: ['t', 'T'] + }, + // Second + s: { + priority: 50, + parse: function (string, token, match, _options) { + switch (token) { + case 's': + return parseNumericPattern(numericPatterns.second, string); + + case 'so': + return match.ordinalNumber(string, { + unit: 'second' + }); + + default: + return parseNDigits(token.length, string); + } + }, + validate: function (_date, value, _options) { + return value >= 0 && value <= 59; + }, + set: function (date, _flags, value, _options) { + date.setUTCSeconds(value, 0); + return date; + }, + incompatibleTokens: ['t', 'T'] + }, + // Fraction of second + S: { + priority: 30, + parse: function (string, token, _match, _options) { + var valueCallback = function (value) { + return Math.floor(value * Math.pow(10, -token.length + 3)); + }; + + return parseNDigits(token.length, string, valueCallback); + }, + set: function (date, _flags, value, _options) { + date.setUTCMilliseconds(value); + return date; + }, + incompatibleTokens: ['t', 'T'] + }, + // Timezone (ISO-8601. +00:00 is `'Z'`) + X: { + priority: 10, + parse: function (string, token, _match, _options) { + switch (token) { + case 'X': + return parseTimezonePattern(timezonePatterns.basicOptionalMinutes, string); + + case 'XX': + return parseTimezonePattern(timezonePatterns.basic, string); + + case 'XXXX': + return parseTimezonePattern(timezonePatterns.basicOptionalSeconds, string); + + case 'XXXXX': + return parseTimezonePattern(timezonePatterns.extendedOptionalSeconds, string); + + case 'XXX': + default: + return parseTimezonePattern(timezonePatterns.extended, string); + } + }, + set: function (date, flags, value, _options) { + if (flags.timestampIsSet) { + return date; + } + + return new Date(date.getTime() - value); + }, + incompatibleTokens: ['t', 'T', 'x'] + }, + // Timezone (ISO-8601) + x: { + priority: 10, + parse: function (string, token, _match, _options) { + switch (token) { + case 'x': + return parseTimezonePattern(timezonePatterns.basicOptionalMinutes, string); + + case 'xx': + return parseTimezonePattern(timezonePatterns.basic, string); + + case 'xxxx': + return parseTimezonePattern(timezonePatterns.basicOptionalSeconds, string); + + case 'xxxxx': + return parseTimezonePattern(timezonePatterns.extendedOptionalSeconds, string); + + case 'xxx': + default: + return parseTimezonePattern(timezonePatterns.extended, string); + } + }, + set: function (date, flags, value, _options) { + if (flags.timestampIsSet) { + return date; + } + + return new Date(date.getTime() - value); + }, + incompatibleTokens: ['t', 'T', 'X'] + }, + // Seconds timestamp + t: { + priority: 40, + parse: function (string, _token, _match, _options) { + return parseAnyDigitsSigned(string); + }, + set: function (_date, _flags, value, _options) { + return [new Date(value * 1000), { + timestampIsSet: true + }]; + }, + incompatibleTokens: '*' + }, + // Milliseconds timestamp + T: { + priority: 20, + parse: function (string, _token, _match, _options) { + return parseAnyDigitsSigned(string); + }, + set: function (_date, _flags, value, _options) { + return [new Date(value), { + timestampIsSet: true + }]; + }, + incompatibleTokens: '*' + } +}; + +var TIMEZONE_UNIT_PRIORITY = 10; // This RegExp consists of three parts separated by `|`: +// - [yYQqMLwIdDecihHKkms]o matches any available ordinal number token +// (one of the certain letters followed by `o`) +// - (\w)\1* matches any sequences of the same letter +// - '' matches two quote characters in a row +// - '(''|[^'])+('|$) matches anything surrounded by two quote characters ('), +// except a single quote symbol, which ends the sequence. +// Two quote characters do not end the sequence. +// If there is no matching single quote +// then the sequence will continue until the end of the string. +// - . matches any single character unmatched by previous parts of the RegExps + +var formattingTokensRegExp = /[yYQqMLwIdDecihHKkms]o|(\w)\1*|''|'(''|[^'])+('|$)|./g; // This RegExp catches symbols escaped by quotes, and also +// sequences of symbols P, p, and the combinations like `PPPPPPPppppp` + +var longFormattingTokensRegExp = /P+p+|P+|p+|''|'(''|[^'])+('|$)|./g; +var escapedStringRegExp = /^'([^]*?)'?$/; +var doubleQuoteRegExp = /''/g; +var notWhitespaceRegExp = /\S/; +var unescapedLatinCharacterRegExp = /[a-zA-Z]/; +/** + * @name parse + * @category Common Helpers + * @summary Parse the date. + * + * @description + * Return the date parsed from string using the given format string. + * + * > ⚠️ Please note that the `format` tokens differ from Moment.js and other libraries. + * > See: https://git.io/fxCyr + * + * The characters in the format string wrapped between two single quotes characters (') are escaped. + * Two single quotes in a row, whether inside or outside a quoted sequence, represent a 'real' single quote. + * + * Format of the format string is based on Unicode Technical Standard #35: + * https://www.unicode.org/reports/tr35/tr35-dates.html#Date_Field_Symbol_Table + * with a few additions (see note 5 below the table). + * + * Not all tokens are compatible. Combinations that don't make sense or could lead to bugs are prohibited + * and will throw `RangeError`. For example usage of 24-hour format token with AM/PM token will throw an exception: + * + * ```javascript + * parse('23 AM', 'HH a', new Date()) + * //=> RangeError: The format string mustn't contain `HH` and `a` at the same time + * ``` + * + * See the compatibility table: https://docs.google.com/spreadsheets/d/e/2PACX-1vQOPU3xUhplll6dyoMmVUXHKl_8CRDs6_ueLmex3SoqwhuolkuN3O05l4rqx5h1dKX8eb46Ul-CCSrq/pubhtml?gid=0&single=true + * + * Accepted format string patterns: + * | Unit |Prior| Pattern | Result examples | Notes | + * |---------------------------------|-----|---------|-----------------------------------|-------| + * | Era | 140 | G..GGG | AD, BC | | + * | | | GGGG | Anno Domini, Before Christ | 2 | + * | | | GGGGG | A, B | | + * | Calendar year | 130 | y | 44, 1, 1900, 2017, 9999 | 4 | + * | | | yo | 44th, 1st, 1900th, 9999999th | 4,5 | + * | | | yy | 44, 01, 00, 17 | 4 | + * | | | yyy | 044, 001, 123, 999 | 4 | + * | | | yyyy | 0044, 0001, 1900, 2017 | 4 | + * | | | yyyyy | ... | 2,4 | + * | Local week-numbering year | 130 | Y | 44, 1, 1900, 2017, 9000 | 4 | + * | | | Yo | 44th, 1st, 1900th, 9999999th | 4,5 | + * | | | YY | 44, 01, 00, 17 | 4,6 | + * | | | YYY | 044, 001, 123, 999 | 4 | + * | | | YYYY | 0044, 0001, 1900, 2017 | 4,6 | + * | | | YYYYY | ... | 2,4 | + * | ISO week-numbering year | 130 | R | -43, 1, 1900, 2017, 9999, -9999 | 4,5 | + * | | | RR | -43, 01, 00, 17 | 4,5 | + * | | | RRR | -043, 001, 123, 999, -999 | 4,5 | + * | | | RRRR | -0043, 0001, 2017, 9999, -9999 | 4,5 | + * | | | RRRRR | ... | 2,4,5 | + * | Extended year | 130 | u | -43, 1, 1900, 2017, 9999, -999 | 4 | + * | | | uu | -43, 01, 99, -99 | 4 | + * | | | uuu | -043, 001, 123, 999, -999 | 4 | + * | | | uuuu | -0043, 0001, 2017, 9999, -9999 | 4 | + * | | | uuuuu | ... | 2,4 | + * | Quarter (formatting) | 120 | Q | 1, 2, 3, 4 | | + * | | | Qo | 1st, 2nd, 3rd, 4th | 5 | + * | | | QQ | 01, 02, 03, 04 | | + * | | | QQQ | Q1, Q2, Q3, Q4 | | + * | | | QQQQ | 1st quarter, 2nd quarter, ... | 2 | + * | | | QQQQQ | 1, 2, 3, 4 | 4 | + * | Quarter (stand-alone) | 120 | q | 1, 2, 3, 4 | | + * | | | qo | 1st, 2nd, 3rd, 4th | 5 | + * | | | qq | 01, 02, 03, 04 | | + * | | | qqq | Q1, Q2, Q3, Q4 | | + * | | | qqqq | 1st quarter, 2nd quarter, ... | 2 | + * | | | qqqqq | 1, 2, 3, 4 | 3 | + * | Month (formatting) | 110 | M | 1, 2, ..., 12 | | + * | | | Mo | 1st, 2nd, ..., 12th | 5 | + * | | | MM | 01, 02, ..., 12 | | + * | | | MMM | Jan, Feb, ..., Dec | | + * | | | MMMM | January, February, ..., December | 2 | + * | | | MMMMM | J, F, ..., D | | + * | Month (stand-alone) | 110 | L | 1, 2, ..., 12 | | + * | | | Lo | 1st, 2nd, ..., 12th | 5 | + * | | | LL | 01, 02, ..., 12 | | + * | | | LLL | Jan, Feb, ..., Dec | | + * | | | LLLL | January, February, ..., December | 2 | + * | | | LLLLL | J, F, ..., D | | + * | Local week of year | 100 | w | 1, 2, ..., 53 | | + * | | | wo | 1st, 2nd, ..., 53th | 5 | + * | | | ww | 01, 02, ..., 53 | | + * | ISO week of year | 100 | I | 1, 2, ..., 53 | 5 | + * | | | Io | 1st, 2nd, ..., 53th | 5 | + * | | | II | 01, 02, ..., 53 | 5 | + * | Day of month | 90 | d | 1, 2, ..., 31 | | + * | | | do | 1st, 2nd, ..., 31st | 5 | + * | | | dd | 01, 02, ..., 31 | | + * | Day of year | 90 | D | 1, 2, ..., 365, 366 | 7 | + * | | | Do | 1st, 2nd, ..., 365th, 366th | 5 | + * | | | DD | 01, 02, ..., 365, 366 | 7 | + * | | | DDD | 001, 002, ..., 365, 366 | | + * | | | DDDD | ... | 2 | + * | Day of week (formatting) | 90 | E..EEE | Mon, Tue, Wed, ..., Sun | | + * | | | EEEE | Monday, Tuesday, ..., Sunday | 2 | + * | | | EEEEE | M, T, W, T, F, S, S | | + * | | | EEEEEE | Mo, Tu, We, Th, Fr, Su, Sa | | + * | ISO day of week (formatting) | 90 | i | 1, 2, 3, ..., 7 | 5 | + * | | | io | 1st, 2nd, ..., 7th | 5 | + * | | | ii | 01, 02, ..., 07 | 5 | + * | | | iii | Mon, Tue, Wed, ..., Sun | 5 | + * | | | iiii | Monday, Tuesday, ..., Sunday | 2,5 | + * | | | iiiii | M, T, W, T, F, S, S | 5 | + * | | | iiiiii | Mo, Tu, We, Th, Fr, Su, Sa | 5 | + * | Local day of week (formatting) | 90 | e | 2, 3, 4, ..., 1 | | + * | | | eo | 2nd, 3rd, ..., 1st | 5 | + * | | | ee | 02, 03, ..., 01 | | + * | | | eee | Mon, Tue, Wed, ..., Sun | | + * | | | eeee | Monday, Tuesday, ..., Sunday | 2 | + * | | | eeeee | M, T, W, T, F, S, S | | + * | | | eeeeee | Mo, Tu, We, Th, Fr, Su, Sa | | + * | Local day of week (stand-alone) | 90 | c | 2, 3, 4, ..., 1 | | + * | | | co | 2nd, 3rd, ..., 1st | 5 | + * | | | cc | 02, 03, ..., 01 | | + * | | | ccc | Mon, Tue, Wed, ..., Sun | | + * | | | cccc | Monday, Tuesday, ..., Sunday | 2 | + * | | | ccccc | M, T, W, T, F, S, S | | + * | | | cccccc | Mo, Tu, We, Th, Fr, Su, Sa | | + * | AM, PM | 80 | a..aaa | AM, PM | | + * | | | aaaa | a.m., p.m. | 2 | + * | | | aaaaa | a, p | | + * | AM, PM, noon, midnight | 80 | b..bbb | AM, PM, noon, midnight | | + * | | | bbbb | a.m., p.m., noon, midnight | 2 | + * | | | bbbbb | a, p, n, mi | | + * | Flexible day period | 80 | B..BBB | at night, in the morning, ... | | + * | | | BBBB | at night, in the morning, ... | 2 | + * | | | BBBBB | at night, in the morning, ... | | + * | Hour [1-12] | 70 | h | 1, 2, ..., 11, 12 | | + * | | | ho | 1st, 2nd, ..., 11th, 12th | 5 | + * | | | hh | 01, 02, ..., 11, 12 | | + * | Hour [0-23] | 70 | H | 0, 1, 2, ..., 23 | | + * | | | Ho | 0th, 1st, 2nd, ..., 23rd | 5 | + * | | | HH | 00, 01, 02, ..., 23 | | + * | Hour [0-11] | 70 | K | 1, 2, ..., 11, 0 | | + * | | | Ko | 1st, 2nd, ..., 11th, 0th | 5 | + * | | | KK | 01, 02, ..., 11, 00 | | + * | Hour [1-24] | 70 | k | 24, 1, 2, ..., 23 | | + * | | | ko | 24th, 1st, 2nd, ..., 23rd | 5 | + * | | | kk | 24, 01, 02, ..., 23 | | + * | Minute | 60 | m | 0, 1, ..., 59 | | + * | | | mo | 0th, 1st, ..., 59th | 5 | + * | | | mm | 00, 01, ..., 59 | | + * | Second | 50 | s | 0, 1, ..., 59 | | + * | | | so | 0th, 1st, ..., 59th | 5 | + * | | | ss | 00, 01, ..., 59 | | + * | Seconds timestamp | 40 | t | 512969520 | | + * | | | tt | ... | 2 | + * | Fraction of second | 30 | S | 0, 1, ..., 9 | | + * | | | SS | 00, 01, ..., 99 | | + * | | | SSS | 000, 0001, ..., 999 | | + * | | | SSSS | ... | 2 | + * | Milliseconds timestamp | 20 | T | 512969520900 | | + * | | | TT | ... | 2 | + * | Timezone (ISO-8601 w/ Z) | 10 | X | -08, +0530, Z | | + * | | | XX | -0800, +0530, Z | | + * | | | XXX | -08:00, +05:30, Z | | + * | | | XXXX | -0800, +0530, Z, +123456 | 2 | + * | | | XXXXX | -08:00, +05:30, Z, +12:34:56 | | + * | Timezone (ISO-8601 w/o Z) | 10 | x | -08, +0530, +00 | | + * | | | xx | -0800, +0530, +0000 | | + * | | | xxx | -08:00, +05:30, +00:00 | 2 | + * | | | xxxx | -0800, +0530, +0000, +123456 | | + * | | | xxxxx | -08:00, +05:30, +00:00, +12:34:56 | | + * | Long localized date | NA | P | 05/29/1453 | 5,8 | + * | | | PP | May 29, 1453 | | + * | | | PPP | May 29th, 1453 | | + * | | | PPPP | Sunday, May 29th, 1453 | 2,5,8 | + * | Long localized time | NA | p | 12:00 AM | 5,8 | + * | | | pp | 12:00:00 AM | | + * | Combination of date and time | NA | Pp | 05/29/1453, 12:00 AM | | + * | | | PPpp | May 29, 1453, 12:00:00 AM | | + * | | | PPPpp | May 29th, 1453 at ... | | + * | | | PPPPpp | Sunday, May 29th, 1453 at ... | 2,5,8 | + * Notes: + * 1. "Formatting" units (e.g. formatting quarter) in the default en-US locale + * are the same as "stand-alone" units, but are different in some languages. + * "Formatting" units are declined according to the rules of the language + * in the context of a date. "Stand-alone" units are always nominative singular. + * In `format` function, they will produce different result: + * + * `format(new Date(2017, 10, 6), 'do LLLL', {locale: cs}) //=> '6. listopad'` + * + * `format(new Date(2017, 10, 6), 'do MMMM', {locale: cs}) //=> '6. listopadu'` + * + * `parse` will try to match both formatting and stand-alone units interchangably. + * + * 2. Any sequence of the identical letters is a pattern, unless it is escaped by + * the single quote characters (see below). + * If the sequence is longer than listed in table: + * - for numerical units (`yyyyyyyy`) `parse` will try to match a number + * as wide as the sequence + * - for text units (`MMMMMMMM`) `parse` will try to match the widest variation of the unit. + * These variations are marked with "2" in the last column of the table. + * + * 3. `QQQQQ` and `qqqqq` could be not strictly numerical in some locales. + * These tokens represent the shortest form of the quarter. + * + * 4. The main difference between `y` and `u` patterns are B.C. years: + * + * | Year | `y` | `u` | + * |------|-----|-----| + * | AC 1 | 1 | 1 | + * | BC 1 | 1 | 0 | + * | BC 2 | 2 | -1 | + * + * Also `yy` will try to guess the century of two digit year by proximity with `referenceDate`: + * + * `parse('50', 'yy', new Date(2018, 0, 1)) //=> Sat Jan 01 2050 00:00:00` + * + * `parse('75', 'yy', new Date(2018, 0, 1)) //=> Wed Jan 01 1975 00:00:00` + * + * while `uu` will just assign the year as is: + * + * `parse('50', 'uu', new Date(2018, 0, 1)) //=> Sat Jan 01 0050 00:00:00` + * + * `parse('75', 'uu', new Date(2018, 0, 1)) //=> Tue Jan 01 0075 00:00:00` + * + * The same difference is true for local and ISO week-numbering years (`Y` and `R`), + * except local week-numbering years are dependent on `options.weekStartsOn` + * and `options.firstWeekContainsDate` (compare [setISOWeekYear]{@link https://date-fns.org/docs/setISOWeekYear} + * and [setWeekYear]{@link https://date-fns.org/docs/setWeekYear}). + * + * 5. These patterns are not in the Unicode Technical Standard #35: + * - `i`: ISO day of week + * - `I`: ISO week of year + * - `R`: ISO week-numbering year + * - `o`: ordinal number modifier + * - `P`: long localized date + * - `p`: long localized time + * + * 6. `YY` and `YYYY` tokens represent week-numbering years but they are often confused with years. + * You should enable `options.useAdditionalWeekYearTokens` to use them. See: https://git.io/fxCyr + * + * 7. `D` and `DD` tokens represent days of the year but they are ofthen confused with days of the month. + * You should enable `options.useAdditionalDayOfYearTokens` to use them. See: https://git.io/fxCyr + * + * 8. `P+` tokens do not have a defined priority since they are merely aliases to other tokens based + * on the given locale. + * + * using `en-US` locale: `P` => `MM/dd/yyyy` + * using `en-US` locale: `p` => `hh:mm a` + * using `pt-BR` locale: `P` => `dd/MM/yyyy` + * using `pt-BR` locale: `p` => `HH:mm` + * + * Values will be assigned to the date in the descending order of its unit's priority. + * Units of an equal priority overwrite each other in the order of appearance. + * + * If no values of higher priority are parsed (e.g. when parsing string 'January 1st' without a year), + * the values will be taken from 3rd argument `referenceDate` which works as a context of parsing. + * + * `referenceDate` must be passed for correct work of the function. + * If you're not sure which `referenceDate` to supply, create a new instance of Date: + * `parse('02/11/2014', 'MM/dd/yyyy', new Date())` + * In this case parsing will be done in the context of the current date. + * If `referenceDate` is `Invalid Date` or a value not convertible to valid `Date`, + * then `Invalid Date` will be returned. + * + * The result may vary by locale. + * + * If `formatString` matches with `dateString` but does not provides tokens, `referenceDate` will be returned. + * + * If parsing failed, `Invalid Date` will be returned. + * Invalid Date is a Date, whose time value is NaN. + * Time value of Date: http://es5.github.io/#x15.9.1.1 + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * - Old `parse` was renamed to `toDate`. + * Now `parse` is a new function which parses a string using a provided format. + * + * ```javascript + * // Before v2.0.0 + * parse('2016-01-01') + * + * // v2.0.0 onward (toDate no longer accepts a string) + * toDate(1392098430000) // Unix to timestamp + * toDate(new Date(2014, 1, 11, 11, 30, 30)) // Cloning the date + * parse('2016-01-01', 'yyyy-MM-dd', new Date()) + * ``` + * + * @param {String} dateString - the string to parse + * @param {String} formatString - the string of tokens + * @param {Date|Number} referenceDate - defines values missing from the parsed dateString + * @param {Object} [options] - an object with options. + * @param {Locale} [options.locale=defaultLocale] - the locale object. See [Locale]{@link https://date-fns.org/docs/Locale} + * @param {0|1|2|3|4|5|6} [options.weekStartsOn=0] - the index of the first day of the week (0 - Sunday) + * @param {1|2|3|4|5|6|7} [options.firstWeekContainsDate=1] - the day of January, which is always in the first week of the year + * @param {Boolean} [options.useAdditionalWeekYearTokens=false] - if true, allows usage of the week-numbering year tokens `YY` and `YYYY`; + * see: https://git.io/fxCyr + * @param {Boolean} [options.useAdditionalDayOfYearTokens=false] - if true, allows usage of the day of year tokens `D` and `DD`; + * see: https://git.io/fxCyr + * @returns {Date} the parsed date + * @throws {TypeError} 3 arguments required + * @throws {RangeError} `options.weekStartsOn` must be between 0 and 6 + * @throws {RangeError} `options.firstWeekContainsDate` must be between 1 and 7 + * @throws {RangeError} `options.locale` must contain `match` property + * @throws {RangeError} use `yyyy` instead of `YYYY` for formatting years using [format provided] to the input [input provided]; see: https://git.io/fxCyr + * @throws {RangeError} use `yy` instead of `YY` for formatting years using [format provided] to the input [input provided]; see: https://git.io/fxCyr + * @throws {RangeError} use `d` instead of `D` for formatting days of the month using [format provided] to the input [input provided]; see: https://git.io/fxCyr + * @throws {RangeError} use `dd` instead of `DD` for formatting days of the month using [format provided] to the input [input provided]; see: https://git.io/fxCyr + * @throws {RangeError} format string contains an unescaped latin alphabet character + * + * @example + * // Parse 11 February 2014 from middle-endian format: + * var result = parse('02/11/2014', 'MM/dd/yyyy', new Date()) + * //=> Tue Feb 11 2014 00:00:00 + * + * @example + * // Parse 28th of February in Esperanto locale in the context of 2010 year: + * import eo from 'date-fns/locale/eo' + * var result = parse('28-a de februaro', "do 'de' MMMM", new Date(2010, 0, 1), { + * locale: eo + * }) + * //=> Sun Feb 28 2010 00:00:00 + */ + +function parse(dirtyDateString, dirtyFormatString, dirtyReferenceDate, dirtyOptions) { + requiredArgs(3, arguments); + var dateString = String(dirtyDateString); + var formatString = String(dirtyFormatString); + var options = dirtyOptions || {}; + var locale$1 = options.locale || locale; + + if (!locale$1.match) { + throw new RangeError('locale must contain match property'); + } + + var localeFirstWeekContainsDate = locale$1.options && locale$1.options.firstWeekContainsDate; + var defaultFirstWeekContainsDate = localeFirstWeekContainsDate == null ? 1 : toInteger(localeFirstWeekContainsDate); + var firstWeekContainsDate = options.firstWeekContainsDate == null ? defaultFirstWeekContainsDate : toInteger(options.firstWeekContainsDate); // Test if weekStartsOn is between 1 and 7 _and_ is not NaN + + if (!(firstWeekContainsDate >= 1 && firstWeekContainsDate <= 7)) { + throw new RangeError('firstWeekContainsDate must be between 1 and 7 inclusively'); + } + + var localeWeekStartsOn = locale$1.options && locale$1.options.weekStartsOn; + var defaultWeekStartsOn = localeWeekStartsOn == null ? 0 : toInteger(localeWeekStartsOn); + var weekStartsOn = options.weekStartsOn == null ? defaultWeekStartsOn : toInteger(options.weekStartsOn); // Test if weekStartsOn is between 0 and 6 _and_ is not NaN + + if (!(weekStartsOn >= 0 && weekStartsOn <= 6)) { + throw new RangeError('weekStartsOn must be between 0 and 6 inclusively'); + } + + if (formatString === '') { + if (dateString === '') { + return toDate(dirtyReferenceDate); + } else { + return new Date(NaN); + } + } + + var subFnOptions = { + firstWeekContainsDate: firstWeekContainsDate, + weekStartsOn: weekStartsOn, + locale: locale$1 // If timezone isn't specified, it will be set to the system timezone + + }; + var setters = [{ + priority: TIMEZONE_UNIT_PRIORITY, + subPriority: -1, + set: dateToSystemTimezone, + index: 0 + }]; + var i; + var tokens = formatString.match(longFormattingTokensRegExp).map(function (substring) { + var firstCharacter = substring[0]; + + if (firstCharacter === 'p' || firstCharacter === 'P') { + var longFormatter = longFormatters[firstCharacter]; + return longFormatter(substring, locale$1.formatLong, subFnOptions); + } + + return substring; + }).join('').match(formattingTokensRegExp); + var usedTokens = []; + + for (i = 0; i < tokens.length; i++) { + var token = tokens[i]; + + if (!options.useAdditionalWeekYearTokens && isProtectedWeekYearToken(token)) { + throwProtectedError(token, formatString, dirtyDateString); + } + + if (!options.useAdditionalDayOfYearTokens && isProtectedDayOfYearToken(token)) { + throwProtectedError(token, formatString, dirtyDateString); + } + + var firstCharacter = token[0]; + var parser = parsers[firstCharacter]; + + if (parser) { + var incompatibleTokens = parser.incompatibleTokens; + + if (Array.isArray(incompatibleTokens)) { + var incompatibleToken = void 0; + + for (var _i = 0; _i < usedTokens.length; _i++) { + var usedToken = usedTokens[_i].token; + + if (incompatibleTokens.indexOf(usedToken) !== -1 || usedToken === firstCharacter) { + incompatibleToken = usedTokens[_i]; + break; + } + } + + if (incompatibleToken) { + throw new RangeError("The format string mustn't contain `".concat(incompatibleToken.fullToken, "` and `").concat(token, "` at the same time")); + } + } else if (parser.incompatibleTokens === '*' && usedTokens.length) { + throw new RangeError("The format string mustn't contain `".concat(token, "` and any other token at the same time")); + } + + usedTokens.push({ + token: firstCharacter, + fullToken: token + }); + var parseResult = parser.parse(dateString, token, locale$1.match, subFnOptions); + + if (!parseResult) { + return new Date(NaN); + } + + setters.push({ + priority: parser.priority, + subPriority: parser.subPriority || 0, + set: parser.set, + validate: parser.validate, + value: parseResult.value, + index: setters.length + }); + dateString = parseResult.rest; + } else { + if (firstCharacter.match(unescapedLatinCharacterRegExp)) { + throw new RangeError('Format string contains an unescaped latin alphabet character `' + firstCharacter + '`'); + } // Replace two single quote characters with one single quote character + + + if (token === "''") { + token = "'"; + } else if (firstCharacter === "'") { + token = cleanEscapedString(token); + } // Cut token from string, or, if string doesn't match the token, return Invalid Date + + + if (dateString.indexOf(token) === 0) { + dateString = dateString.slice(token.length); + } else { + return new Date(NaN); + } + } + } // Check if the remaining input contains something other than whitespace + + + if (dateString.length > 0 && notWhitespaceRegExp.test(dateString)) { + return new Date(NaN); + } + + var uniquePrioritySetters = setters.map(function (setter) { + return setter.priority; + }).sort(function (a, b) { + return b - a; + }).filter(function (priority, index, array) { + return array.indexOf(priority) === index; + }).map(function (priority) { + return setters.filter(function (setter) { + return setter.priority === priority; + }).sort(function (a, b) { + return b.subPriority - a.subPriority; + }); + }).map(function (setterArray) { + return setterArray[0]; + }); + var date = toDate(dirtyReferenceDate); + + if (isNaN(date)) { + return new Date(NaN); + } // Convert the date in system timezone to the same date in UTC+00:00 timezone. + // This ensures that when UTC functions will be implemented, locales will be compatible with them. + // See an issue about UTC functions: https://github.com/date-fns/date-fns/issues/37 + + + var utcDate = subMilliseconds(date, getTimezoneOffsetInMilliseconds(date)); + var flags = {}; + + for (i = 0; i < uniquePrioritySetters.length; i++) { + var setter = uniquePrioritySetters[i]; + + if (setter.validate && !setter.validate(utcDate, setter.value, subFnOptions)) { + return new Date(NaN); + } + + var result = setter.set(utcDate, flags, setter.value, subFnOptions); // Result is tuple (date, flags) + + if (result[0]) { + utcDate = result[0]; + assign(flags, result[1]); // Result is date + } else { + utcDate = result; + } + } + + return utcDate; +} + +function dateToSystemTimezone(date, flags) { + if (flags.timestampIsSet) { + return date; + } + + var convertedDate = new Date(0); + convertedDate.setFullYear(date.getUTCFullYear(), date.getUTCMonth(), date.getUTCDate()); + convertedDate.setHours(date.getUTCHours(), date.getUTCMinutes(), date.getUTCSeconds(), date.getUTCMilliseconds()); + return convertedDate; +} + +function cleanEscapedString(input) { + return input.match(escapedStringRegExp)[1].replace(doubleQuoteRegExp, "'"); +} + +/** + * @name startOfHour + * @category Hour Helpers + * @summary Return the start of an hour for the given date. + * + * @description + * Return the start of an hour for the given date. + * The result will be in the local timezone. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the original date + * @returns {Date} the start of an hour + * @throws {TypeError} 1 argument required + * + * @example + * // The start of an hour for 2 September 2014 11:55:00: + * const result = startOfHour(new Date(2014, 8, 2, 11, 55)) + * //=> Tue Sep 02 2014 11:00:00 + */ + +function startOfHour(dirtyDate) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate); + date.setMinutes(0, 0, 0); + return date; +} + +/** + * @name startOfMinute + * @category Minute Helpers + * @summary Return the start of a minute for the given date. + * + * @description + * Return the start of a minute for the given date. + * The result will be in the local timezone. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the original date + * @returns {Date} the start of a minute + * @throws {TypeError} 1 argument required + * + * @example + * // The start of a minute for 1 December 2014 22:15:45.400: + * const result = startOfMinute(new Date(2014, 11, 1, 22, 15, 45, 400)) + * //=> Mon Dec 01 2014 22:15:00 + */ + +function startOfMinute(dirtyDate) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate); + date.setSeconds(0, 0); + return date; +} + +/** + * @name startOfSecond + * @category Second Helpers + * @summary Return the start of a second for the given date. + * + * @description + * Return the start of a second for the given date. + * The result will be in the local timezone. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * @param {Date|Number} date - the original date + * @returns {Date} the start of a second + * @throws {TypeError} 1 argument required + * + * @example + * // The start of a second for 1 December 2014 22:15:45.400: + * const result = startOfSecond(new Date(2014, 11, 1, 22, 15, 45, 400)) + * //=> Mon Dec 01 2014 22:15:45.000 + */ + +function startOfSecond(dirtyDate) { + requiredArgs(1, arguments); + var date = toDate(dirtyDate); + date.setMilliseconds(0); + return date; +} + +var MILLISECONDS_IN_HOUR = 3600000; +var MILLISECONDS_IN_MINUTE = 60000; +var DEFAULT_ADDITIONAL_DIGITS = 2; +var patterns = { + dateTimeDelimiter: /[T ]/, + timeZoneDelimiter: /[Z ]/i, + timezone: /([Z+-].*)$/ +}; +var dateRegex = /^-?(?:(\d{3})|(\d{2})(?:-?(\d{2}))?|W(\d{2})(?:-?(\d{1}))?|)$/; +var timeRegex = /^(\d{2}(?:[.,]\d*)?)(?::?(\d{2}(?:[.,]\d*)?))?(?::?(\d{2}(?:[.,]\d*)?))?$/; +var timezoneRegex = /^([+-])(\d{2})(?::?(\d{2}))?$/; +/** + * @name parseISO + * @category Common Helpers + * @summary Parse ISO string + * + * @description + * Parse the given string in ISO 8601 format and return an instance of Date. + * + * Function accepts complete ISO 8601 formats as well as partial implementations. + * ISO 8601: http://en.wikipedia.org/wiki/ISO_8601 + * + * If the argument isn't a string, the function cannot parse the string or + * the values are invalid, it returns Invalid Date. + * + * ### v2.0.0 breaking changes: + * + * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). + * + * - The previous `parse` implementation was renamed to `parseISO`. + * + * ```javascript + * // Before v2.0.0 + * parse('2016-01-01') + * + * // v2.0.0 onward + * parseISO('2016-01-01') + * ``` + * + * - `parseISO` now validates separate date and time values in ISO-8601 strings + * and returns `Invalid Date` if the date is invalid. + * + * ```javascript + * parseISO('2018-13-32') + * //=> Invalid Date + * ``` + * + * - `parseISO` now doesn't fall back to `new Date` constructor + * if it fails to parse a string argument. Instead, it returns `Invalid Date`. + * + * @param {String} argument - the value to convert + * @param {Object} [options] - an object with options. + * @param {0|1|2} [options.additionalDigits=2] - the additional number of digits in the extended year format + * @returns {Date} the parsed date in the local time zone + * @throws {TypeError} 1 argument required + * @throws {RangeError} `options.additionalDigits` must be 0, 1 or 2 + * + * @example + * // Convert string '2014-02-11T11:30:30' to date: + * var result = parseISO('2014-02-11T11:30:30') + * //=> Tue Feb 11 2014 11:30:30 + * + * @example + * // Convert string '+02014101' to date, + * // if the additional number of digits in the extended year format is 1: + * var result = parseISO('+02014101', { additionalDigits: 1 }) + * //=> Fri Apr 11 2014 00:00:00 + */ + +function parseISO(argument, dirtyOptions) { + requiredArgs(1, arguments); + var options = dirtyOptions || {}; + var additionalDigits = options.additionalDigits == null ? DEFAULT_ADDITIONAL_DIGITS : toInteger(options.additionalDigits); + + if (additionalDigits !== 2 && additionalDigits !== 1 && additionalDigits !== 0) { + throw new RangeError('additionalDigits must be 0, 1 or 2'); + } + + if (!(typeof argument === 'string' || Object.prototype.toString.call(argument) === '[object String]')) { + return new Date(NaN); + } + + var dateStrings = splitDateString(argument); + var date; + + if (dateStrings.date) { + var parseYearResult = parseYear(dateStrings.date, additionalDigits); + date = parseDate(parseYearResult.restDateString, parseYearResult.year); + } + + if (isNaN(date) || !date) { + return new Date(NaN); + } + + var timestamp = date.getTime(); + var time = 0; + var offset; + + if (dateStrings.time) { + time = parseTime(dateStrings.time); + + if (isNaN(time) || time === null) { + return new Date(NaN); + } + } + + if (dateStrings.timezone) { + offset = parseTimezone(dateStrings.timezone); + + if (isNaN(offset)) { + return new Date(NaN); + } + } else { + var dirtyDate = new Date(timestamp + time); // js parsed string assuming it's in UTC timezone + // but we need it to be parsed in our timezone + // so we use utc values to build date in our timezone. + // Year values from 0 to 99 map to the years 1900 to 1999 + // so set year explicitly with setFullYear. + + var result = new Date(0); + result.setFullYear(dirtyDate.getUTCFullYear(), dirtyDate.getUTCMonth(), dirtyDate.getUTCDate()); + result.setHours(dirtyDate.getUTCHours(), dirtyDate.getUTCMinutes(), dirtyDate.getUTCSeconds(), dirtyDate.getUTCMilliseconds()); + return result; + } + + return new Date(timestamp + time + offset); +} + +function splitDateString(dateString) { + var dateStrings = {}; + var array = dateString.split(patterns.dateTimeDelimiter); + var timeString; // The regex match should only return at maximum two array elements. + // [date], [time], or [date, time]. + + if (array.length > 2) { + return dateStrings; + } + + if (/:/.test(array[0])) { + dateStrings.date = null; + timeString = array[0]; + } else { + dateStrings.date = array[0]; + timeString = array[1]; + + if (patterns.timeZoneDelimiter.test(dateStrings.date)) { + dateStrings.date = dateString.split(patterns.timeZoneDelimiter)[0]; + timeString = dateString.substr(dateStrings.date.length, dateString.length); + } + } + + if (timeString) { + var token = patterns.timezone.exec(timeString); + + if (token) { + dateStrings.time = timeString.replace(token[1], ''); + dateStrings.timezone = token[1]; + } else { + dateStrings.time = timeString; + } + } + + return dateStrings; +} + +function parseYear(dateString, additionalDigits) { + var regex = new RegExp('^(?:(\\d{4}|[+-]\\d{' + (4 + additionalDigits) + '})|(\\d{2}|[+-]\\d{' + (2 + additionalDigits) + '})$)'); + var captures = dateString.match(regex); // Invalid ISO-formatted year + + if (!captures) return { + year: null + }; + var year = captures[1] && parseInt(captures[1]); + var century = captures[2] && parseInt(captures[2]); + return { + year: century == null ? year : century * 100, + restDateString: dateString.slice((captures[1] || captures[2]).length) + }; +} + +function parseDate(dateString, year) { + // Invalid ISO-formatted year + if (year === null) return null; + var captures = dateString.match(dateRegex); // Invalid ISO-formatted string + + if (!captures) return null; + var isWeekDate = !!captures[4]; + var dayOfYear = parseDateUnit(captures[1]); + var month = parseDateUnit(captures[2]) - 1; + var day = parseDateUnit(captures[3]); + var week = parseDateUnit(captures[4]); + var dayOfWeek = parseDateUnit(captures[5]) - 1; + + if (isWeekDate) { + if (!validateWeekDate(year, week, dayOfWeek)) { + return new Date(NaN); + } + + return dayOfISOWeekYear(year, week, dayOfWeek); + } else { + var date = new Date(0); + + if (!validateDate(year, month, day) || !validateDayOfYearDate(year, dayOfYear)) { + return new Date(NaN); + } + + date.setUTCFullYear(year, month, Math.max(dayOfYear, day)); + return date; + } +} + +function parseDateUnit(value) { + return value ? parseInt(value) : 1; +} + +function parseTime(timeString) { + var captures = timeString.match(timeRegex); + if (!captures) return null; // Invalid ISO-formatted time + + var hours = parseTimeUnit(captures[1]); + var minutes = parseTimeUnit(captures[2]); + var seconds = parseTimeUnit(captures[3]); + + if (!validateTime(hours, minutes, seconds)) { + return NaN; + } + + return hours * MILLISECONDS_IN_HOUR + minutes * MILLISECONDS_IN_MINUTE + seconds * 1000; +} + +function parseTimeUnit(value) { + return value && parseFloat(value.replace(',', '.')) || 0; +} + +function parseTimezone(timezoneString) { + if (timezoneString === 'Z') return 0; + var captures = timezoneString.match(timezoneRegex); + if (!captures) return 0; + var sign = captures[1] === '+' ? -1 : 1; + var hours = parseInt(captures[2]); + var minutes = captures[3] && parseInt(captures[3]) || 0; + + if (!validateTimezone(hours, minutes)) { + return NaN; + } + + return sign * (hours * MILLISECONDS_IN_HOUR + minutes * MILLISECONDS_IN_MINUTE); +} + +function dayOfISOWeekYear(isoWeekYear, week, day) { + var date = new Date(0); + date.setUTCFullYear(isoWeekYear, 0, 4); + var fourthOfJanuaryDay = date.getUTCDay() || 7; + var diff = (week - 1) * 7 + day + 1 - fourthOfJanuaryDay; + date.setUTCDate(date.getUTCDate() + diff); + return date; +} // Validation functions +// February is null to handle the leap year (using ||) + + +var daysInMonths = [31, null, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]; + +function isLeapYearIndex(year) { + return year % 400 === 0 || year % 4 === 0 && year % 100; +} + +function validateDate(year, month, date) { + return month >= 0 && month <= 11 && date >= 1 && date <= (daysInMonths[month] || (isLeapYearIndex(year) ? 29 : 28)); +} + +function validateDayOfYearDate(year, dayOfYear) { + return dayOfYear >= 1 && dayOfYear <= (isLeapYearIndex(year) ? 366 : 365); +} + +function validateWeekDate(_year, week, day) { + return week >= 1 && week <= 53 && day >= 0 && day <= 6; +} + +function validateTime(hours, minutes, seconds) { + if (hours === 24) { + return minutes === 0 && seconds === 0; + } + + return seconds >= 0 && seconds < 60 && minutes >= 0 && minutes < 60 && hours >= 0 && hours < 25; +} + +function validateTimezone(_hours, minutes) { + return minutes >= 0 && minutes <= 59; +} + +const FORMATS = { + datetime: 'MMM d, yyyy, h:mm:ss aaaa', + millisecond: 'h:mm:ss.SSS aaaa', + second: 'h:mm:ss aaaa', + minute: 'h:mm aaaa', + hour: 'ha', + day: 'MMM d', + week: 'PP', + month: 'MMM yyyy', + quarter: 'qqq - yyyy', + year: 'yyyy' +}; + +chart_js._adapters._date.override({ + _id: 'date-fns', // DEBUG + + formats: function() { + return FORMATS; + }, + + parse: function(value, fmt) { + if (value === null || typeof value === 'undefined') { + return null; + } + const type = typeof value; + if (type === 'number' || value instanceof Date) { + value = toDate(value); + } else if (type === 'string') { + if (typeof fmt === 'string') { + value = parse(value, fmt, new Date(), this.options); + } else { + value = parseISO(value, this.options); + } + } + return isValid(value) ? value.getTime() : null; + }, + + format: function(time, fmt) { + return format(time, fmt, this.options); + }, + + add: function(time, amount, unit) { + switch (unit) { + case 'millisecond': return addMilliseconds(time, amount); + case 'second': return addSeconds(time, amount); + case 'minute': return addMinutes(time, amount); + case 'hour': return addHours(time, amount); + case 'day': return addDays(time, amount); + case 'week': return addWeeks(time, amount); + case 'month': return addMonths(time, amount); + case 'quarter': return addQuarters(time, amount); + case 'year': return addYears(time, amount); + default: return time; + } + }, + + diff: function(max, min, unit) { + switch (unit) { + case 'millisecond': return differenceInMilliseconds(max, min); + case 'second': return differenceInSeconds(max, min); + case 'minute': return differenceInMinutes(max, min); + case 'hour': return differenceInHours(max, min); + case 'day': return differenceInDays(max, min); + case 'week': return differenceInWeeks(max, min); + case 'month': return differenceInMonths(max, min); + case 'quarter': return differenceInQuarters(max, min); + case 'year': return differenceInYears(max, min); + default: return 0; + } + }, + + startOf: function(time, unit, weekday) { + switch (unit) { + case 'second': return startOfSecond(time); + case 'minute': return startOfMinute(time); + case 'hour': return startOfHour(time); + case 'day': return startOfDay(time); + case 'week': return startOfWeek(time); + case 'isoWeek': return startOfWeek(time, {weekStartsOn: +weekday}); + case 'month': return startOfMonth(time); + case 'quarter': return startOfQuarter(time); + case 'year': return startOfYear(time); + default: return time; + } + }, + + endOf: function(time, unit) { + switch (unit) { + case 'second': return endOfSecond(time); + case 'minute': return endOfMinute(time); + case 'hour': return endOfHour(time); + case 'day': return endOfDay(time); + case 'week': return endOfWeek(time); + case 'month': return endOfMonth(time); + case 'quarter': return endOfQuarter(time); + case 'year': return endOfYear(time); + default: return time; + } + } +}); + +}))); diff --git a/static/chartjs-chart-error-bars.umd.js b/static/chartjs-chart-error-bars.umd.js new file mode 100644 index 0000000..3f4ac5b --- /dev/null +++ b/static/chartjs-chart-error-bars.umd.js @@ -0,0 +1,606 @@ +/** + * chartjs-chart-error-bars + * https://github.com/sgratzl/chartjs-chart-error-bars + * + * Copyright (c) 2021 Samuel Gratzl + */ + +(function (global, factory) { + typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('chart.js'), require('chart.js/helpers')) : + typeof define === 'function' && define.amd ? define(['exports', 'chart.js', 'chart.js/helpers'], factory) : + (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.ChartErrorBars = {}, global.Chart, global.Chart.helpers)); +})(this, (function (exports, chart_js, helpers) { 'use strict'; + + const allModelKeys = ['xMin', 'xMax', 'yMin', 'yMax']; + function modelKeys(horizontal) { + return (horizontal ? allModelKeys.slice(0, 2) : allModelKeys.slice(2)); + } + function calculateScale(properties, data, index, scale, reset) { + const keys = [`${scale.axis}Min`, `${scale.axis}Max`]; + const base = scale.getBasePixel(); + for (const key of keys) { + const v = data[key]; + if (Array.isArray(v)) { + properties[key] = v.map((d) => (reset ? base : scale.getPixelForValue(d, index))); + } + else if (typeof v === 'number') { + properties[key] = reset ? base : scale.getPixelForValue(v, index); + } + } + } + function calculatePolarScale(properties, data, scale, reset, options) { + const animationOpts = options.animation; + const keys = [`${scale.axis}Min`, `${scale.axis}Max`]; + const toAngle = (v) => { + const valueRadius = scale.getDistanceFromCenterForValue(v); + const resetRadius = animationOpts.animateScale ? 0 : valueRadius; + return reset ? resetRadius : valueRadius; + }; + for (const key of keys) { + const v = data[key]; + if (Array.isArray(v)) { + properties[key] = v.map(toAngle); + } + else if (typeof v === 'number') { + properties[key] = toAngle(v); + } + } + } + + const errorBarDefaults = { + errorBarLineWidth: { v: [1, 3] }, + errorBarColor: { v: ['#2c2c2c', '#1f1f1f'] }, + errorBarWhiskerLineWidth: { v: [1, 3] }, + errorBarWhiskerRatio: { v: [0.2, 0.25] }, + errorBarWhiskerSize: { v: [20, 24] }, + errorBarWhiskerColor: { v: ['#2c2c2c', '#1f1f1f'] }, + }; + const errorBarDescriptors = { + _scriptable: true, + _indexable: (name) => name !== 'v', + }; + const styleKeys = Object.keys(errorBarDefaults); + function resolveMulti(vMin, vMax) { + const vMinArr = Array.isArray(vMin) ? vMin : [vMin]; + const vMaxArr = Array.isArray(vMax) ? vMax : [vMax]; + if (vMinArr.length === vMaxArr.length) { + return vMinArr.map((v, i) => [v, vMaxArr[i]]); + } + const max = Math.max(vMinArr.length, vMaxArr.length); + return Array(max).map((_, i) => [vMinArr[i % vMinArr.length], vMaxArr[i % vMaxArr.length]]); + } + function resolveOption(val, index) { + if (typeof val === 'string' || typeof val === 'number') { + return val; + } + const v = Array.isArray(val) ? val : val.v; + return v[index % v.length]; + } + function calculateHalfSize(total, options, i) { + const ratio = resolveOption(options.errorBarWhiskerRatio, i); + if (total != null && ratio > 0) { + return total * ratio * 0.5; + } + const size = resolveOption(options.errorBarWhiskerSize, i); + return size * 0.5; + } + function drawErrorBarVertical(props, vMin, vMax, options, ctx) { + ctx.save(); + ctx.translate(props.x, 0); + const bars = resolveMulti(vMin == null ? props.y : vMin, vMax == null ? props.y : vMax); + bars.reverse().forEach(([mi, ma], j) => { + const i = bars.length - j - 1; + const halfWidth = calculateHalfSize(props.width, options, i); + ctx.lineWidth = resolveOption(options.errorBarLineWidth, i); + ctx.strokeStyle = resolveOption(options.errorBarColor, i); + ctx.beginPath(); + ctx.moveTo(0, mi); + ctx.lineTo(0, ma); + ctx.stroke(); + ctx.lineWidth = resolveOption(options.errorBarWhiskerLineWidth, i); + ctx.strokeStyle = resolveOption(options.errorBarWhiskerColor, i); + ctx.beginPath(); + ctx.moveTo(-halfWidth, mi); + ctx.lineTo(halfWidth, mi); + ctx.moveTo(-halfWidth, ma); + ctx.lineTo(halfWidth, ma); + ctx.stroke(); + }); + ctx.restore(); + } + function drawErrorBarHorizontal(props, vMin, vMax, options, ctx) { + ctx.save(); + ctx.translate(0, props.y); + const bars = resolveMulti(vMin == null ? props.x : vMin, vMax == null ? props.x : vMax); + bars.reverse().forEach(([mi, ma], j) => { + const i = bars.length - j - 1; + const halfHeight = calculateHalfSize(props.height, options, i); + ctx.lineWidth = resolveOption(options.errorBarLineWidth, i); + ctx.strokeStyle = resolveOption(options.errorBarColor, i); + ctx.beginPath(); + ctx.moveTo(mi, 0); + ctx.lineTo(ma, 0); + ctx.stroke(); + ctx.lineWidth = resolveOption(options.errorBarWhiskerLineWidth, i); + ctx.strokeStyle = resolveOption(options.errorBarWhiskerColor, i); + ctx.beginPath(); + ctx.moveTo(mi, -halfHeight); + ctx.lineTo(mi, halfHeight); + ctx.moveTo(ma, -halfHeight); + ctx.lineTo(ma, halfHeight); + ctx.stroke(); + }); + ctx.restore(); + } + function renderErrorBar(elem, ctx) { + var _a, _b, _c, _d; + const props = elem.getProps(['x', 'y', 'width', 'height', 'xMin', 'xMax', 'yMin', 'yMax']); + if (props.xMin != null || props.xMax != null) { + drawErrorBarHorizontal(props, (_a = props.xMin) !== null && _a !== void 0 ? _a : null, (_b = props.xMax) !== null && _b !== void 0 ? _b : null, elem.options, ctx); + } + if (props.yMin != null || props.yMax != null) { + drawErrorBarVertical(props, (_c = props.yMin) !== null && _c !== void 0 ? _c : null, (_d = props.yMax) !== null && _d !== void 0 ? _d : null, elem.options, ctx); + } + } + function drawErrorBarArc(props, vMin, vMax, options, ctx) { + ctx.save(); + ctx.translate(props.x, props.y); + const angle = (props.startAngle + props.endAngle) / 2; + const cosAngle = Math.cos(angle); + const sinAngle = Math.sin(angle); + const v = { + x: -sinAngle, + y: cosAngle, + }; + const length = Math.sqrt(v.x * v.x + v.y * v.y); + v.x /= length; + v.y /= length; + const bars = resolveMulti(vMin !== null && vMin !== void 0 ? vMin : props.outerRadius, vMax !== null && vMax !== void 0 ? vMax : props.outerRadius); + bars.reverse().forEach(([mi, ma], j) => { + const i = bars.length - j - 1; + const minCos = mi * cosAngle; + const minSin = mi * sinAngle; + const maxCos = ma * cosAngle; + const maxSin = ma * sinAngle; + const halfHeight = calculateHalfSize(null, options, i); + const eX = v.x * halfHeight; + const eY = v.y * halfHeight; + ctx.lineWidth = resolveOption(options.errorBarLineWidth, i); + ctx.strokeStyle = resolveOption(options.errorBarColor, i); + ctx.beginPath(); + ctx.moveTo(minCos, minSin); + ctx.lineTo(maxCos, maxSin); + ctx.stroke(); + ctx.lineWidth = resolveOption(options.errorBarWhiskerLineWidth, i); + ctx.strokeStyle = resolveOption(options.errorBarWhiskerColor, i); + ctx.beginPath(); + ctx.moveTo(minCos + eX, minSin + eY); + ctx.lineTo(minCos - eX, minSin - eY); + ctx.moveTo(maxCos + eX, maxSin + eY); + ctx.lineTo(maxCos - eX, maxSin - eY); + ctx.stroke(); + }); + ctx.restore(); + } + function renderErrorBarArc(elem, ctx) { + const props = elem.getProps(['x', 'y', 'startAngle', 'endAngle', 'rMin', 'rMax', 'outerRadius']); + if (props.rMin != null || props.rMax != null) { + drawErrorBarArc(props, props.rMin, props.rMax, elem.options, ctx); + } + } + + class BarWithErrorBar extends chart_js.BarElement { + draw(ctx) { + super.draw(ctx); + renderErrorBar(this, ctx); + } + } + BarWithErrorBar.id = 'barWithErrorBar'; + BarWithErrorBar.defaults = { ...chart_js.BarElement.defaults, ...errorBarDefaults }; + BarWithErrorBar.defaultRoutes = chart_js.BarElement.defaultRoutes; + BarWithErrorBar.descriptors = errorBarDescriptors; + + class PointWithErrorBar extends chart_js.PointElement { + draw(ctx, area) { + super.draw.call(this, ctx, area); + renderErrorBar(this, ctx); + } + } + PointWithErrorBar.id = 'pointWithErrorBar'; + PointWithErrorBar.defaults = { ...chart_js.PointElement.defaults, ...errorBarDefaults }; + PointWithErrorBar.defaultRoutes = chart_js.PointElement.defaultRoutes; + PointWithErrorBar.descriptors = errorBarDescriptors; + + class ArcWithErrorBar extends chart_js.ArcElement { + draw(ctx) { + super.draw(ctx); + renderErrorBarArc(this, ctx); + } + } + ArcWithErrorBar.id = 'arcWithErrorBar'; + ArcWithErrorBar.defaults = { ...chart_js.ArcElement.defaults, ...errorBarDefaults }; + ArcWithErrorBar.defaultRoutes = chart_js.ArcElement.defaultRoutes; + ArcWithErrorBar.descriptors = errorBarDescriptors; + + function reverseOrder(v) { + return Array.isArray(v) ? v.slice().reverse() : v; + } + function generateBarTooltip(item) { + const keys = modelKeys(item.element.horizontal); + const base = chart_js.Tooltip.defaults.callbacks.label.call(this, item); + const v = item.chart.data.datasets[item.datasetIndex].data[item.dataIndex]; + if (v == null || keys.every((k) => v[k] == null)) { + return base; + } + return `${base} (${reverseOrder(v[keys[0]])} .. ${v[keys[1]]})`; + } + function generateTooltipScatter(item) { + const v = item.chart.data.datasets[item.datasetIndex].data[item.dataIndex]; + const subLabel = (base, horizontal) => { + const keys = modelKeys(horizontal); + if (v == null || keys.every((k) => v[k] == null)) { + return base; + } + return `${base} [${reverseOrder(v[keys[0]])} .. ${v[keys[1]]}]`; + }; + return `(${subLabel(item.label, true)}, ${subLabel(item.parsed.y, false)})`; + } + function generateTooltipPolar(item) { + const base = chart_js.PolarAreaController.overrides.plugins.tooltip.callbacks.label.call(this, item); + const v = item.chart.data.datasets[item.datasetIndex].data[item.dataIndex]; + const keys = ['rMin', 'rMax']; + if (v == null || keys.every((k) => v[k] == null)) { + return base; + } + return `${base} [${reverseOrder(v[keys[0]])} .. ${v[keys[1]]}]`; + } + + const interpolators = { + color(from, to, factor) { + const f = from || 'transparent'; + const t = to || 'transparent'; + if (f === t) { + return to; + } + const c0 = helpers.color(f); + const c1 = c0.valid && helpers.color(t); + return c1 && c1.valid ? c1.mix(c0, factor).hexString() : to; + }, + number(from, to, factor) { + if (from === to) { + return to; + } + return from + (to - from) * factor; + }, + }; + function interpolateArrayOption(from, to, factor, type, interpolator) { + if (typeof from === type && typeof to === type) { + return interpolator(from, to, factor); + } + if (Array.isArray(from) && Array.isArray(to)) { + return from.map((f, i) => interpolator(f, to[i], factor)); + } + const isV = (t) => t && Array.isArray(t.v); + if (isV(from) && isV(to)) { + return { v: from.v.map((f, i) => interpolator(f, to.v[i], factor)) }; + } + return to; + } + function interpolateNumberOptionArray(from, to, factor) { + return interpolateArrayOption(from, to, factor, 'number', interpolators.number); + } + function interpolateColorOptionArray(from, to, factor) { + return interpolateArrayOption(from, to, factor, 'string', interpolators.color); + } + const animationHints = { + animations: { + numberArray: { + fn: interpolateNumberOptionArray, + properties: allModelKeys.concat(styleKeys.filter((d) => !d.endsWith('Color')), ['rMin', 'rMax']), + }, + colorArray: { + fn: interpolateColorOptionArray, + properties: styleKeys.filter((d) => d.endsWith('Color')), + }, + }, + }; + + function getMinMax(scale, superMethod) { + const { axis } = scale; + scale.axis = `${axis}MinMin`; + const { min } = superMethod(scale); + scale.axis = `${axis}MaxMax`; + const { max } = superMethod(scale); + scale.axis = axis; + return { min, max }; + } + function computeExtrema(v, vm, op) { + if (Array.isArray(vm)) { + return op(...vm); + } + if (typeof vm === 'number') { + return vm; + } + return v; + } + function parseErrorNumberData(parsed, scale, data, start, count) { + const axis = typeof scale === 'string' ? scale : scale.axis; + const vMin = `${axis}Min`; + const vMax = `${axis}Max`; + const vMinMin = `${axis}MinMin`; + const vMaxMax = `${axis}MaxMax`; + for (let i = 0; i < count; i += 1) { + const index = i + start; + const p = parsed[i]; + p[vMin] = data[index][vMin]; + p[vMax] = data[index][vMax]; + p[vMinMin] = computeExtrema(p[axis], p[vMin], Math.min); + p[vMaxMax] = computeExtrema(p[axis], p[vMax], Math.max); + } + } + function parseErrorLabelData(parsed, scale, start, count) { + const { axis } = scale; + const labels = scale.getLabels(); + for (let i = 0; i < count; i += 1) { + const index = i + start; + const p = parsed[i]; + p[axis] = scale.parse(labels[index], index); + } + } + + function patchController(type, config, controller, elements = [], scales = []) { + chart_js.registry.addControllers(controller); + if (Array.isArray(elements)) { + chart_js.registry.addElements(...elements); + } + else { + chart_js.registry.addElements(elements); + } + if (Array.isArray(scales)) { + chart_js.registry.addScales(...scales); + } + else { + chart_js.registry.addScales(scales); + } + const c = config; + c.type = type; + return c; + } + + class BarWithErrorBarsController extends chart_js.BarController { + getMinMax(scale, canStack) { + return getMinMax(scale, (patchedScale) => super.getMinMax(patchedScale, canStack)); + } + parseObjectData(meta, data, start, count) { + const parsed = super.parseObjectData(meta, data, start, count); + parseErrorNumberData(parsed, meta.vScale, data, start, count); + parseErrorLabelData(parsed, meta.iScale, start, count); + return parsed; + } + updateElement(element, index, properties, mode) { + if (typeof index === 'number') { + calculateScale(properties, this.getParsed(index), index, this._cachedMeta.vScale, mode === 'reset'); + } + super.updateElement(element, index, properties, mode); + } + } + BarWithErrorBarsController.id = 'barWithErrorBars'; + BarWithErrorBarsController.defaults = helpers.merge({}, [ + chart_js.BarController.defaults, + animationHints, + { + dataElementType: BarWithErrorBar.id, + }, + ]); + BarWithErrorBarsController.overrides = helpers.merge({}, [ + chart_js.BarController.overrides, + { + plugins: { + tooltip: { + callbacks: { + label: generateBarTooltip, + }, + }, + }, + }, + ]); + BarWithErrorBarsController.defaultRoutes = chart_js.BarController.defaultRoutes; + class BarWithErrorBarsChart extends chart_js.Chart { + constructor(item, config) { + super(item, patchController('barWithErrorBars', config, BarWithErrorBarsController, BarWithErrorBar, [ + chart_js.LinearScale, + chart_js.CategoryScale, + ])); + } + } + BarWithErrorBarsChart.id = BarWithErrorBarsController.id; + + class LineWithErrorBarsController extends chart_js.LineController { + getMinMax(scale, canStack) { + return getMinMax(scale, (patchedScale) => super.getMinMax(patchedScale, canStack)); + } + parseObjectData(meta, data, start, count) { + const parsed = super.parseObjectData(meta, data, start, count); + parseErrorNumberData(parsed, meta.vScale, data, start, count); + parseErrorLabelData(parsed, meta.iScale, start, count); + return parsed; + } + updateElement(element, index, properties, mode) { + if (element instanceof PointWithErrorBar && typeof index === 'number') { + calculateScale(properties, this.getParsed(index), index, this._cachedMeta.vScale, mode === 'reset'); + } + super.updateElement(element, index, properties, mode); + } + } + LineWithErrorBarsController.id = 'lineWithErrorBars'; + LineWithErrorBarsController.defaults = helpers.merge({}, [ + chart_js.LineController.defaults, + animationHints, + { + dataElementType: PointWithErrorBar.id, + }, + ]); + LineWithErrorBarsController.overrides = helpers.merge({}, [ + chart_js.LineController.overrides, + { + plugins: { + tooltip: { + callbacks: { + label: generateBarTooltip, + }, + }, + }, + }, + ]); + LineWithErrorBarsController.defaultRoutes = chart_js.LineController.defaultRoutes; + class LineWithErrorBarsChart extends chart_js.Chart { + constructor(item, config) { + super(item, patchController('lineWithErrorBars', config, LineWithErrorBarsController, PointWithErrorBar, [ + chart_js.LinearScale, + chart_js.CategoryScale, + ])); + } + } + LineWithErrorBarsChart.id = LineWithErrorBarsController.id; + + class ScatterWithErrorBarsController extends chart_js.ScatterController { + getMinMax(scale, canStack) { + return getMinMax(scale, (patchedScale) => super.getMinMax(patchedScale, canStack)); + } + parseObjectData(meta, data, start, count) { + const parsed = super.parseObjectData(meta, data, start, count); + parseErrorNumberData(parsed, meta.xScale, data, start, count); + parseErrorNumberData(parsed, meta.yScale, data, start, count); + return parsed; + } + updateElement(element, index, properties, mode) { + if (element instanceof PointWithErrorBar && typeof index === 'number') { + calculateScale(properties, this.getParsed(index), index, this._cachedMeta.xScale, mode === 'reset'); + calculateScale(properties, this.getParsed(index), index, this._cachedMeta.yScale, mode === 'reset'); + } + super.updateElement(element, index, properties, mode); + } + } + ScatterWithErrorBarsController.id = 'scatterWithErrorBars'; + ScatterWithErrorBarsController.defaults = helpers.merge({}, [ + chart_js.ScatterController.defaults, + animationHints, + { + dataElementType: PointWithErrorBar.id, + }, + ]); + ScatterWithErrorBarsController.overrides = helpers.merge({}, [ + chart_js.ScatterController.overrides, + { + plugins: { + tooltip: { + callbacks: { + label: generateTooltipScatter, + }, + }, + }, + }, + ]); + ScatterWithErrorBarsController.defaultRoutes = chart_js.LineController.defaultRoutes; + class ScatterWithErrorBarsChart extends chart_js.Chart { + constructor(item, config) { + super(item, patchController('scatterWithErrorBars', config, ScatterWithErrorBarsController, PointWithErrorBar, [chart_js.LinearScale])); + } + } + ScatterWithErrorBarsChart.id = ScatterWithErrorBarsController.id; + + class PolarAreaWithErrorBarsController extends chart_js.PolarAreaController { + getMinMax(scale, canStack) { + return getMinMax(scale, (patchedScale) => super.getMinMax(patchedScale, canStack)); + } + countVisibleElements() { + const meta = this._cachedMeta; + return meta.data.reduce((acc, _, index) => { + if (!Number.isNaN(meta._parsed[index].r) && this.chart.getDataVisibility(index)) { + return acc + 1; + } + return acc; + }, 0); + } + parseObjectData(meta, data, start, count) { + const parsed = new Array(count); + const scale = meta.rScale; + for (let i = 0; i < count; i += 1) { + const index = i + start; + const item = data[index]; + const v = scale.parse(item[scale.axis], index); + parsed[i] = { + [scale.axis]: v, + }; + } + parseErrorNumberData(parsed, scale, data, start, count); + return parsed; + } + updateElement(element, index, properties, mode) { + if (typeof index === 'number') { + calculatePolarScale(properties, this.getParsed(index), this._cachedMeta.rScale, mode === 'reset', this.chart.options); + } + super.updateElement(element, index, properties, mode); + } + updateElements(arcs, start, count, mode) { + const scale = this.chart.scales.r; + const bak = scale.getDistanceFromCenterForValue; + scale.getDistanceFromCenterForValue = function getDistanceFromCenterForValue(v) { + if (typeof v === 'number') { + return bak.call(this, v); + } + return bak.call(this, v.r); + }; + super.updateElements(arcs, start, count, mode); + scale.getDistanceFromCenterForValue = bak; + } + } + PolarAreaWithErrorBarsController.id = 'polarAreaWithErrorBars'; + PolarAreaWithErrorBarsController.defaults = helpers.merge({}, [ + chart_js.PolarAreaController.defaults, + animationHints, + { + dataElementType: ArcWithErrorBar.id, + }, + ]); + PolarAreaWithErrorBarsController.overrides = helpers.merge({}, [ + chart_js.PolarAreaController.overrides, + { + plugins: { + tooltip: { + callbacks: { + label: generateTooltipPolar, + }, + }, + }, + }, + ]); + PolarAreaWithErrorBarsController.defaultRoutes = chart_js.PolarAreaController.defaultRoutes; + class PolarAreaWithErrorBarsChart extends chart_js.Chart { + constructor(item, config) { + super(item, patchController('polarAreaWithErrorBars', config, PolarAreaWithErrorBarsController, ArcWithErrorBar, [ + chart_js.RadialLinearScale, + ])); + } + } + PolarAreaWithErrorBarsChart.id = PolarAreaWithErrorBarsController.id; + + chart_js.registry.addControllers(BarWithErrorBarsController, LineWithErrorBarsController, PolarAreaWithErrorBarsController, ScatterWithErrorBarsController); + chart_js.registry.addElements(BarWithErrorBar, ArcWithErrorBar, PointWithErrorBar); + + exports.ArcWithErrorBar = ArcWithErrorBar; + exports.BarWithErrorBar = BarWithErrorBar; + exports.BarWithErrorBarsChart = BarWithErrorBarsChart; + exports.BarWithErrorBarsController = BarWithErrorBarsController; + exports.LineWithErrorBarsChart = LineWithErrorBarsChart; + exports.LineWithErrorBarsController = LineWithErrorBarsController; + exports.PointWithErrorBar = PointWithErrorBar; + exports.PolarAreaWithErrorBarsChart = PolarAreaWithErrorBarsChart; + exports.PolarAreaWithErrorBarsController = PolarAreaWithErrorBarsController; + exports.ScatterWithErrorBarsChart = ScatterWithErrorBarsChart; + exports.ScatterWithErrorBarsController = ScatterWithErrorBarsController; + + Object.defineProperty(exports, '__esModule', { value: true }); + +})); +//# sourceMappingURL=index.umd.js.map diff --git a/static/index.html b/static/index.html new file mode 100644 index 0000000..447dfaf --- /dev/null +++ b/static/index.html @@ -0,0 +1,51 @@ + + + + + + + + + 💩📈 + + +

💩📈

+
+ + +
+
+ +
+
+ +
+ +
+ Download data: CSV JSON +
+
+ Source: Massachusetts Water Resources Authority +
+ + diff --git a/static/poopGraph.js b/static/poopGraph.js new file mode 100644 index 0000000..abda5ea --- /dev/null +++ b/static/poopGraph.js @@ -0,0 +1,240 @@ +fetch('/data.json') + .then(resp => resp.json()) + .then(plot) + .catch(err => { + console.log(err); + }); + +function average(window) { + let y_sum = 0; + let count = 0; + for (const sample of window) { + if (sample['y'] !== undefined) { + y_sum += sample['y']; + count += 1; + } + } + if (count === 0) { + return undefined; + } + return y_sum / count; +} + +function localLinearRegression(slopeWindowSize, averageWindowSize) { + return (window) => { + let x_sum = 0; + let y_sum = 0; + let count = 0; + for (const sample of window.slice(-slopeWindowSize)) { + if (sample['y'] !== undefined) { + x_sum += sample['x']; + y_sum += sample['y']; + count += 1; + } + } + if (count === 0) { + return undefined; + } + const x_avg = x_sum / count; + const y_avg = y_sum / count; + + let numerator = 0; + let denominator = 0; + for (const sample of window) { + if (sample['y'] !== undefined) { + const x_err = sample['x'] - x_avg; + const y_err = sample['y'] - y_avg; + numerator += x_err * y_err; + denominator += x_err * x_err; + } + } + if (denominator === 0) { + return window.at(-1)['y']; + } + const slope = numerator / denominator; + + let short_x_sum = 0; + let short_y_sum = 0; + let short_count = 0; + for (const sample of window.slice(-averageWindowSize)) { + if (sample['y'] !== undefined) { + short_x_sum += sample['x']; + short_y_sum += sample['y']; + short_count += 1; + } + } + if (short_count === 0) { + return y_avg + (window.at(-1)['x'] - x_avg) * slope; + } + const short_x_avg = short_x_sum / short_count; + const short_y_avg = short_y_sum / short_count; + return short_y_avg + (window.at(-1)['x'] - short_x_avg) * slope; + }; +} + +function smooth(data, column, windowSize, smoothFunc) { + const smoothed = []; + const window = []; + for (const row of data) { + window.push({ x: new Date(row['x']).getTime(), y: row[column] }); + if (window.length > windowSize) { + window.shift(); + } + smoothed.push({ x: row['x'], y: smoothFunc(window) }); + } + return smoothed; +} + +function extractWithErrorBars(data, region) { + const extracted = []; + for (const row of data['rows']) { + const y = row[region + ' (copies/mL)']; + if (y !== undefined) { + extracted.push({ + x: row['Date'], + y: y, + yMin: y - (row[region + ' Low Confidence Interval'] || 0), + yMax: y + (row[region + ' High Confidence Interval'] || 0), + }); + } + } + return extracted; +} + +function plot(data) { + const northData = extractWithErrorBars(data, 'Northern'); + const southData = extractWithErrorBars(data, 'Southern'); + const northCtx = document.getElementById('northCanvas'); + const southCtx = document.getElementById('southCanvas'); + let options = { + maintainAspectRatio: false, + interaction: { + intersect: false, + }, + scales: { + x: { + type: 'timeseries', + min: document.getElementById('startDate').value, + max: document.getElementById('endDate').value, + }, + y: { + min: 0, + }, + }, + plugins: { + title: { + display: true, + text: 'Wastewater COVID RNA Signal (copies/mL)', + }, + }, + }; + + const northChart = new Chart(northCtx, { + data: { + datasets: [ + { + type: 'scatterWithErrorBars', + label: 'North System', + data: northData, + backgroundColor: 'rgba(0,0,255,0.5)', + color: 'rgba(0,0,255,0.5)', + borderColor: 'rgba(0,0,255,0.5)', + spanGaps: true, + }, +/* { + type: 'line', + label: 'smoothing 18/14', + data: smooth(northData, 'y', 18, localLinearRegression(18, 14)), + pointRadius: 0, + borderColor: 'rgba(0,0,255,0.6)', + }, + { + type: 'line', + label: 'smoothing 14/14', + data: smooth(northData, 'y', 14, localLinearRegression(14, 14)), + pointRadius: 0, + borderColor: 'rgba(255,0,255,0.6)', + },*/ + { + type: 'line', + label: 'North System 7-day average (low)', + data: smooth(northData, 'yMin', 7, average), + pointRadius: 0, + borderColor: 'rgba(0,255,0,0.6)', + fill: '+1', + backgroundColor: 'rgba(0,255,0,0.2)', + }, + { + type: 'line', + label: 'North System 7-day average', + data: smooth(northData, 'y', 7, average), + pointRadius: 0, + borderColor: 'rgba(0,128,0,0.9)', + backgroundColor: 'rgba(0,128,0,0.9)', + }, + { + type: 'line', + label: 'North System 7-day average (high)', + data: smooth(northData, 'yMax', 7, average), + pointRadius: 0, + borderColor: 'rgba(0,255,0,0.6)', + fill: '-1', + backgroundColor: 'rgba(0,255,0,0.2)', + }, + ] + }, + options, + }); + const southChart = new Chart(southCtx, { + data: { + datasets: [ + { + type: 'scatterWithErrorBars', + label: 'South System', + data: southData, + backgroundColor: 'rgba(255,0,0,0.5)', + color: 'rgba(255,0,0,0.5)', + borderColor: 'rgba(255,0,0,0.5)', + spanGaps: true, + }, + { + type: 'line', + label: 'South System 7-day average (low)', + data: smooth(southData, 'yMin', 7, average), + pointRadius: 0, + borderColor: 'rgba(255,127,0,0.6)', + fill: '+1', + backgroundColor: 'rgba(255,127,0,0.2)', + }, + { + type: 'line', + label: 'South System 7-day average', + data: smooth(southData, 'y', 7, average), + pointRadius: 0, + borderColor: 'rgba(127,63,0,0.9)', + backgroundColor: 'rgba(127,63,0,0.9)', + }, + { + type: 'line', + label: 'South System 7-day average (high)', + data: smooth(southData, 'yMax', 7, average), + pointRadius: 0, + borderColor: 'rgba(255,127,0,0.6)', + fill: '-1', + backgroundColor: 'rgba(255,127,0,0.2)', + }, + ], + }, + options, + }); + document.getElementById('startDate').addEventListener('input', (e) => { + options.scales.x.min = e.target.value; + northChart.update(); + southChart.update(); + }); + document.getElementById('endDate').addEventListener('input', (e) => { + options.scales.x.max = e.target.value; + northChart.update(); + southChart.update(); + }); +}