transbeam/static/js/download.js

27 lines
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JavaScript
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document.addEventListener('DOMContentLoaded', () => {
const downloadCodeInput = document.getElementById('download_code_input');
const downloadButton = document.getElementById('download_button');
const downloadForm = document.getElementById('download_form');
downloadCodeInput.addEventListener('beforeinput', (e) => {
if (/^[a-zA-Z0-9-]+$/.test(e.data)) { return; }
e.preventDefault();
if (e.data === ' ') {
downloadCodeInput.value += '-';
}
});
const disableEnableDownload = () => { downloadButton.disabled = (downloadCodeInput.value === ''); };
disableEnableDownload();
downloadCodeInput.addEventListener('input', disableEnableDownload);
downloadForm.addEventListener('submit', (e) => {
if (downloadCodeInput.value === '') {
e.preventDefault();
} else {
setTimeout(() => {
downloadCodeInput.value = '';
downloadButton.disabled = true;
}, 0);
}
});
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downloadCodeInput.focus();
});