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d8e45608d6
According to my test, the UI (emoji) is fine in Safari And actually the code is just dead code, because the "resize" event is never fired on page loading. So for most cases users just view the pages without this hacky patch, nobody ever complains.
140 lines
4.2 KiB
JavaScript
140 lines
4.2 KiB
JavaScript
import {encode, decode} from 'uint8-to-base64';
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// transform /path/to/file.ext to file.ext
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export function basename(path = '') {
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return path ? path.replace(/^.*\//, '') : '';
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}
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// transform /path/to/file.ext to .ext
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export function extname(path = '') {
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const [_, ext] = /.+(\.[^.]+)$/.exec(path) || [];
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return ext || '';
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}
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// join a list of path segments with slashes, ensuring no double slashes
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export function joinPaths(...parts) {
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let str = '';
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for (const part of parts) {
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if (!part) continue;
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str = !str ? part : `${str.replace(/\/$/, '')}/${part.replace(/^\//, '')}`;
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}
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return str;
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}
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// test whether a variable is an object
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export function isObject(obj) {
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return Object.prototype.toString.call(obj) === '[object Object]';
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}
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// returns whether a dark theme is enabled
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export function isDarkTheme() {
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const style = window.getComputedStyle(document.documentElement);
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return style.getPropertyValue('--is-dark-theme').trim().toLowerCase() === 'true';
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}
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// strip <tags> from a string
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export function stripTags(text) {
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return text.replace(/<[^>]*>?/g, '');
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}
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export function parseIssueHref(href) {
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const path = (href || '').replace(/[#?].*$/, '');
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const [_, owner, repo, type, index] = /([^/]+)\/([^/]+)\/(issues|pulls)\/([0-9]+)/.exec(path) || [];
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return {owner, repo, type, index};
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}
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// parse a URL, either relative '/path' or absolute 'https://localhost/path'
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export function parseUrl(str) {
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return new URL(str, str.startsWith('http') ? undefined : window.location.origin);
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}
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// return current locale chosen by user
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export function getCurrentLocale() {
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return document.documentElement.lang;
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}
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// given a month (0-11), returns it in the documents language
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export function translateMonth(month) {
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return new Date(Date.UTC(2022, month, 12)).toLocaleString(getCurrentLocale(), {month: 'short', timeZone: 'UTC'});
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}
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// given a weekday (0-6, Sunday to Saturday), returns it in the documents language
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export function translateDay(day) {
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return new Date(Date.UTC(2022, 7, day)).toLocaleString(getCurrentLocale(), {weekday: 'short', timeZone: 'UTC'});
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}
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// convert a Blob to a DataURI
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export function blobToDataURI(blob) {
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return new Promise((resolve, reject) => {
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try {
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const reader = new FileReader();
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reader.addEventListener('load', (e) => {
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resolve(e.target.result);
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});
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reader.addEventListener('error', () => {
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reject(new Error('FileReader failed'));
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});
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reader.readAsDataURL(blob);
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} catch (err) {
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reject(err);
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}
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});
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}
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// convert image Blob to another mime-type format.
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export function convertImage(blob, mime) {
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return new Promise(async (resolve, reject) => {
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try {
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const img = new Image();
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const canvas = document.createElement('canvas');
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img.addEventListener('load', () => {
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try {
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canvas.width = img.naturalWidth;
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canvas.height = img.naturalHeight;
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const context = canvas.getContext('2d');
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context.drawImage(img, 0, 0);
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canvas.toBlob((blob) => {
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if (!(blob instanceof Blob)) return reject(new Error('imageBlobToPng failed'));
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resolve(blob);
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}, mime);
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} catch (err) {
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reject(err);
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}
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});
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img.addEventListener('error', () => {
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reject(new Error('imageBlobToPng failed'));
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});
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img.src = await blobToDataURI(blob);
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} catch (err) {
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reject(err);
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}
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});
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}
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export function toAbsoluteUrl(url) {
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if (url.startsWith('http://') || url.startsWith('https://')) {
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return url;
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}
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if (url.startsWith('//')) {
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return `${window.location.protocol}${url}`; // it's also a somewhat absolute URL (with the current scheme)
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}
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if (url && !url.startsWith('/')) {
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throw new Error('unsupported url, it should either start with / or http(s)://');
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}
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return `${window.location.origin}${url}`;
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}
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// Encode an ArrayBuffer into a URLEncoded base64 string.
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export function encodeURLEncodedBase64(arrayBuffer) {
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return encode(arrayBuffer)
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.replace(/\+/g, '-')
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.replace(/\//g, '_')
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.replace(/=/g, '');
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}
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// Decode a URLEncoded base64 to an ArrayBuffer string.
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export function decodeURLEncodedBase64(base64url) {
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return decode(base64url
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.replace(/_/g, '/')
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.replace(/-/g, '+'));
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}
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