48 lines
1.4 KiB
JavaScript
48 lines
1.4 KiB
JavaScript
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/*!
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* Color mode toggler for Bootstrap's docs (https://getbootstrap.com/)
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* Copyright 2011-2023 The Bootstrap Authors
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* Licensed under the Creative Commons Attribution 3.0 Unported License.
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*/
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(() => {
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'use strict'
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const storedTheme = localStorage.getItem('theme')
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const getPreferredTheme = () => {
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if (storedTheme) {
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return storedTheme
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}
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return window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light'
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}
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const setTheme = function (theme) {
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if (theme === 'auto' && window.matchMedia('(prefers-color-scheme: dark)').matches) {
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document.documentElement.setAttribute('data-bs-theme', 'dark')
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} else {
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document.documentElement.setAttribute('data-bs-theme', theme)
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}
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}
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setTheme(getPreferredTheme())
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window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', () => {
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if (storedTheme !== 'light' || storedTheme !== 'dark') {
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setTheme(getPreferredTheme())
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}
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})
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window.addEventListener('DOMContentLoaded', () => {
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document.querySelectorAll('[data-bs-theme-value]')
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.forEach(toggle => {
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toggle.addEventListener('click', () => {
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const theme = toggle.getAttribute('data-bs-theme-value')
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localStorage.setItem('theme', theme)
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setTheme(theme)
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})
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})
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})
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})()
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