patek/patek.cz
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Respect system dark-mode setting

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This commit is contained in:
Šimon Jan Šustek 2021-08-05 09:13:05 +00:00
parent 8cc1d2e34d
commit 5006acd6ba
1 changed files with 12 additions and 4 deletions
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16
themes/patek/assets/js/dark-mode.js
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@ -1,6 +1,14 @@
function restoreDarkmode() {
const prefersDarkMode = window.matchMedia("(prefers-color-scheme: dark)");
const elem = document.getElementById("content");
if (elem && document.cookie.includes("dark-mode=true")) {
if (!document.cookie.includes("dark-mode=")) {
if (elem && prefersDarkMode.matches) {
elem.classList.add("dark-mode");
}
}
if (elem && document.cookie.includes("dark-mode=on")) {
elem.classList.add("dark-mode");
}
}
@ -11,10 +19,10 @@ function toggleDarkmode() {
const state = elem.classList.toggle("dark-mode");
if (state) {
// 31536000 = 1 year; not setting max-age would make it session bound
document.cookie = "dark-mode=true; path=/; max-age=31536000; secure; samesite=strict";
document.cookie = "dark-mode=on; path=/; max-age=31536000; secure; samesite=strict";
} else {
// Delete the cookie by immediately expiring it
document.cookie = "dark-mode=; path=/; max-age=0; secure; samesite=strict";
// We have to set the off preference as well, so it can override the OS setting
document.cookie = "dark-mode=off; path=/; max-age=31536000; secure; samesite=strict";
}
}
}