|
| 1 | +const body = document.body; |
| 2 | +const darkModeToggle = document.getElementById("dark-mode-toggle"); |
| 3 | + |
| 4 | +function rememberTheme(theme) { |
| 5 | + localStorage.setItem("colorscheme", theme); |
| 6 | + localStorage.setItem("color-theme", theme); |
| 7 | +} |
| 8 | + |
| 9 | +function setTheme(theme) { |
| 10 | + const resolved = theme === "dark" ? "dark" : "light"; |
| 11 | + const inverse = resolved === "dark" ? "light" : "dark"; |
| 12 | + |
| 13 | + body.classList.remove("colorscheme-auto"); |
| 14 | + body.classList.remove("colorscheme-" + inverse); |
| 15 | + body.classList.add("colorscheme-" + resolved); |
| 16 | + document.documentElement.style["color-scheme"] = resolved; |
| 17 | + |
| 18 | + function waitForElm(selector) { |
| 19 | + return new Promise((resolve) => { |
| 20 | + if (document.querySelector(selector)) { |
| 21 | + resolve(document.querySelector(selector)); |
| 22 | + return; |
| 23 | + } |
| 24 | + |
| 25 | + const observer = new MutationObserver(() => { |
| 26 | + if (document.querySelector(selector)) { |
| 27 | + resolve(document.querySelector(selector)); |
| 28 | + observer.disconnect(); |
| 29 | + } |
| 30 | + }); |
| 31 | + |
| 32 | + observer.observe(document.body, { |
| 33 | + childList: true, |
| 34 | + subtree: true, |
| 35 | + }); |
| 36 | + }); |
| 37 | + } |
| 38 | + |
| 39 | + const utterancesMessage = { |
| 40 | + type: "set-theme", |
| 41 | + theme: resolved === "dark" ? "github-dark" : "github-light", |
| 42 | + }; |
| 43 | + |
| 44 | + waitForElm(".utterances-frame").then((iframe) => { |
| 45 | + iframe.contentWindow.postMessage(utterancesMessage, "https://utteranc.es"); |
| 46 | + }); |
| 47 | + |
| 48 | + function sendMessage(message) { |
| 49 | + const iframe = document.querySelector("iframe.giscus-frame"); |
| 50 | + if (!iframe) return; |
| 51 | + iframe.contentWindow.postMessage({ giscus: message }, "https://giscus.app"); |
| 52 | + } |
| 53 | + |
| 54 | + sendMessage({ |
| 55 | + setConfig: { |
| 56 | + theme: resolved, |
| 57 | + }, |
| 58 | + }); |
| 59 | + |
| 60 | + document.dispatchEvent(new Event("themeChanged")); |
| 61 | +} |
| 62 | + |
| 63 | +const storedTheme = |
| 64 | + localStorage.getItem("colorscheme") || |
| 65 | + localStorage.getItem("color-theme") || |
| 66 | + (body.classList.contains("colorscheme-dark") ? "dark" : "light"); |
| 67 | + |
| 68 | +setTheme(storedTheme); |
| 69 | +rememberTheme(storedTheme); |
| 70 | + |
| 71 | +if (darkModeToggle) { |
| 72 | + darkModeToggle.addEventListener("click", () => { |
| 73 | + const theme = body.classList.contains("colorscheme-dark") ? "light" : "dark"; |
| 74 | + setTheme(theme); |
| 75 | + rememberTheme(theme); |
| 76 | + }); |
| 77 | +} |
| 78 | + |
| 79 | +document.addEventListener("DOMContentLoaded", () => { |
| 80 | + const node = document.querySelector(".preload-transitions"); |
| 81 | + if (node) { |
| 82 | + node.classList.remove("preload-transitions"); |
| 83 | + } |
| 84 | +}); |
| 85 | + |
| 86 | +window.addEventListener("storage", (event) => { |
| 87 | + if (event.key !== "colorscheme" && event.key !== "color-theme") { |
| 88 | + return; |
| 89 | + } |
| 90 | + |
| 91 | + const theme = event.newValue === "dark" ? "dark" : "light"; |
| 92 | + setTheme(theme); |
| 93 | + rememberTheme(theme); |
| 94 | +}); |
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