Created
March 21, 2024 02:46
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<button type="button" class="header-item-content dms-button" style="border: none;"> | |
<span class="header-item-icon"> | |
<span style="margin: 3px; font-size: 1.2rem; transition: all .6s ease;">🌓</span> | |
</span> | |
<span class="header-item-text">Dark Mode Switcher</span> | |
</button> | |
<script> | |
(() => { | |
'use strict'; | |
// Run script only once | |
if (typeof window.jDarkMode !== "undefined") return; | |
// Initial settings | |
let darkMode = window.jDarkMode = (getDarkModeLocalStorage() === "true"); | |
setDarkModeLocalStorage(darkMode); | |
// Update the first visible "Dark Mode Switcher" button to avoid flickering | |
updateButton(document.querySelector("button.dms-button"), darkMode); | |
updateMode(darkMode); | |
function updateButton(btn, darkMode) { | |
const icon = btn.querySelector(".header-item-icon > span"); | |
const text = btn.querySelector(".header-item-text"); | |
if (darkMode) { | |
icon.innerHTML = "🌙"; | |
icon.style.backgroundColor = "rgb(31, 48, 71)"; | |
text.innerHTML = " Dark Mode"; | |
} else { | |
icon.innerHTML = "☀️"; | |
icon.style.backgroundColor = "transparent"; | |
text.innerHTML = "Light Mode"; | |
} | |
} | |
function updateMode(darkMode) { | |
for (const sheet of document.styleSheets) { | |
//if (sheet.href && sheet.href.includes("atum/css/template")) { | |
for (let i = sheet.cssRules.length - 1; i >= 0; i--) { | |
let rule = sheet.cssRules[i].media; | |
if (typeof rule !== "undefined" && rule.mediaText.includes("prefers-color-scheme")) { | |
if (darkMode) { | |
if (!rule.mediaText.includes("(prefers-color-scheme: light)")) rule.appendMedium("(prefers-color-scheme: light)"); | |
if (!rule.mediaText.includes("(prefers-color-scheme: dark)")) rule.appendMedium("(prefers-color-scheme: dark)"); | |
if (rule.mediaText.includes("original")) rule.deleteMedium("original-prefers-color-scheme"); | |
} else { //else if (!darkMode) { | |
rule.appendMedium("original-prefers-color-scheme"); | |
if (rule.mediaText.includes("light")) rule.deleteMedium("(prefers-color-scheme: light)"); | |
if (rule.mediaText.includes("dark")) rule.deleteMedium("(prefers-color-scheme: dark)"); | |
} /*else { | |
rule.appendMedium("(prefers-color-scheme: dark)"); | |
if (rule.mediaText.includes("light")) rule.deleteMedium("(prefers-color-scheme: light)"); | |
if (rule.mediaText.includes("original")) rule.deleteMedium("original-prefers-color-scheme"); | |
}*/ | |
} | |
} | |
//} | |
} | |
} | |
// Sets localStorage state | |
function setDarkModeLocalStorage(state) { | |
localStorage.setItem("jDarkMode", state); | |
} | |
// Gets localStorage state | |
function getDarkModeLocalStorage() { | |
return localStorage.getItem("jDarkMode"); | |
} | |
// Update all "Dark Mode Switcher" buttons after DOMContentLoaded | |
document.addEventListener('DOMContentLoaded', () => { | |
const dmsBtns = document.querySelectorAll("button.dms-button"); | |
dmsBtns.forEach((dmsBtn) => { | |
updateButton(dmsBtn, darkMode); | |
// Set eventListeners for all "dark-mode"-toggle-buttons on click and set localStorage | |
dmsBtn.addEventListener("click", () => { | |
let darkMode = window.jDarkMode = (getDarkModeLocalStorage() === "false"); | |
setDarkModeLocalStorage(darkMode); | |
dmsBtns.forEach((dmsBtn) => updateButton(dmsBtn, darkMode)); | |
updateMode(darkMode); | |
}); | |
}); | |
}); | |
})(); | |
</script> |
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