mirror of
https://github.com/wavelog/wavelog.git
synced 2026-03-22 10:24:14 +00:00
53 lines
2.4 KiB
JavaScript
53 lines
2.4 KiB
JavaScript
// ## License for the Code (MIT)
|
|
|
|
// Copyright (c) 2022 TalkJS
|
|
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to deal
|
|
// in the Software without restriction, including without limitation the rights
|
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
// copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
|
|
// The above copyright notice and this permission notice shall be included in all
|
|
// copies or substantial portions of the Software.
|
|
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
// SOFTWARE.
|
|
|
|
// SOURCE: https://github.com/talkjs/country-flag-emoji-polyfill
|
|
|
|
const r = '"Twemoji Mozilla","Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji","EmojiOne Color","Android Emoji",sans-serif';
|
|
function a() {
|
|
const o = document.createElement("canvas");
|
|
o.width = o.height = 1;
|
|
const t = o.getContext("2d", {willReadFrequently: true});
|
|
return t.textBaseline = "top", t.font = `100px ${r}`, t.scale(0.01, 0.01), t;
|
|
}
|
|
function i(o, t, e) {
|
|
return o.clearRect(0, 0, 100, 100), o.fillStyle = e, o.fillText(t, 0, 0), o.getImageData(0, 0, 1, 1).data.join(",");
|
|
}
|
|
function l(o) {
|
|
const t = a(), e = i(t, o, "#fff"), n = i(t, o, "#000");
|
|
return n === e && !n.startsWith("0,0,0,");
|
|
}
|
|
function f(o = "Twemoji Country Flags", t = base_url +'assets/fonts/TwemojiCountryFlags/TwemojiCountryFlags.woff2') {
|
|
if (typeof window < "u" && l("\u{1F60A}") && !l("\u{1F1E8}\u{1F1ED}")) {
|
|
const e = document.createElement("style");
|
|
return e.textContent = `@font-face {
|
|
font-family: "${o}";
|
|
unicode-range: U+1F1E6-1F1FF, U+1F3F4, U+E0062-E0063, U+E0065, U+E0067,
|
|
U+E006C, U+E006E, U+E0073-E0074, U+E0077, U+E007F;
|
|
src: url('${t}') format('woff2');
|
|
font-display: swap;
|
|
}`, document.head.appendChild(e), true;
|
|
}
|
|
return false;
|
|
}
|
|
export {f as polyfillCountryFlagEmojis};
|
|
export default null; |