84 lines
2.7 KiB
JavaScript
84 lines
2.7 KiB
JavaScript
const body = document.body;
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const darkModeToggle = document.getElementById('dark-mode-toggle');
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const darkModeMediaQuery = window.matchMedia('(prefers-color-scheme: dark)');
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// Check if user preference is set, if not check value of body class for light or dark else it means that colorscheme = auto
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if (localStorage.getItem("colorscheme")) {
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setTheme(localStorage.getItem("colorscheme"));
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} else if (body.classList.contains('colorscheme-light') || body.classList.contains('colorscheme-dark')) {
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setTheme(body.classList.contains("colorscheme-dark") ? "dark" : "light");
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} else {
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setTheme(darkModeMediaQuery.matches ? "dark" : "light");
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}
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if (darkModeToggle) {
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darkModeToggle.addEventListener('click', () => {
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let theme = body.classList.contains("colorscheme-dark") ? "light" : "dark";
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setTheme(theme);
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rememberTheme(theme);
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});
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}
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darkModeMediaQuery.addListener((event) => {
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setTheme(event.matches ? "dark" : "light");
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});
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document.addEventListener("DOMContentLoaded", function () {
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let node = document.querySelector('.preload-transitions');
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node.classList.remove('preload-transitions');
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});
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function setTheme(theme) {
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body.classList.remove('colorscheme-auto');
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let inverse = theme === 'dark' ? 'light' : 'dark';
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body.classList.remove('colorscheme-' + inverse);
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body.classList.add('colorscheme-' + theme);
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document.documentElement.style['color-scheme'] = theme;
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function waitForElm(selector) {
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return new Promise(resolve => {
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if (document.querySelector(selector)) {
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return resolve(document.querySelector(selector));
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}
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const observer = new MutationObserver(mutations => {
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if (document.querySelector(selector)) {
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resolve(document.querySelector(selector));
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observer.disconnect();
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}
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});
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observer.observe(document.body, {
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childList: true,
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subtree: true
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});
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});
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}
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if (theme === 'dark') {
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const message = {
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type: 'set-theme',
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theme: 'github-dark'
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};
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waitForElm('.utterances-frame').then((iframe) => {
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iframe.contentWindow.postMessage(message, 'https://utteranc.es');
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})
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}
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else {
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const message = {
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type: 'set-theme',
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theme: 'github-light'
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};
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waitForElm('.utterances-frame').then((iframe) => {
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iframe.contentWindow.postMessage(message, 'https://utteranc.es');
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})
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}
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}
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function rememberTheme(theme) {
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localStorage.setItem('colorscheme', theme);
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}
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