Add dark mode support #5658
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| /*! | ||
| * Color mode toggler for Bootstrap's docs (https://getbootstrap.com/) | ||
| * Copyright 2011-2024 The Bootstrap Authors | ||
| * Licensed under the Creative Commons Attribution 3.0 Unported License. | ||
| */ | ||
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| (() => { | ||
| 'use strict' | ||
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| const getStoredTheme = () => localStorage.getItem('theme') | ||
| const setStoredTheme = theme => localStorage.setItem('theme', theme) | ||
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| const getPreferredTheme = () => { | ||
| const storedTheme = getStoredTheme() | ||
| if (storedTheme) { | ||
| return storedTheme | ||
| } | ||
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| return window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light' | ||
| } | ||
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| const setTheme = theme => { | ||
| if (theme === 'auto') { | ||
| document.documentElement.setAttribute('data-bs-theme', (window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light')) | ||
| } else { | ||
| document.documentElement.setAttribute('data-bs-theme', theme) | ||
| } | ||
| } | ||
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| setTheme(getPreferredTheme()) | ||
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| const showActiveTheme = (theme, focus = false) => { | ||
| const themeSwitcher = document.querySelector('#bd-theme') | ||
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| if (!themeSwitcher) { | ||
| return | ||
| } | ||
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| const themeSwitcherText = document.querySelector('#bd-theme-text') | ||
| const activeThemeIcon = document.querySelector('.theme-icon-active use') | ||
| const btnToActive = document.querySelector(`[data-bs-theme-value="${theme}"]`) | ||
| const svgOfActiveBtn = btnToActive.querySelector('svg use').getAttribute('href') | ||
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| document.querySelectorAll('[data-bs-theme-value]').forEach(element => { | ||
| element.classList.remove('active') | ||
| element.setAttribute('aria-pressed', 'false') | ||
| }) | ||
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| btnToActive.classList.add('active') | ||
| btnToActive.setAttribute('aria-pressed', 'true') | ||
| activeThemeIcon.setAttribute('href', svgOfActiveBtn) | ||
| const themeSwitcherLabel = `${themeSwitcherText.textContent} (${btnToActive.dataset.bsThemeValue})` | ||
| themeSwitcher.setAttribute('aria-label', themeSwitcherLabel) | ||
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| if (focus) { | ||
| themeSwitcher.focus() | ||
| } | ||
| } | ||
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| window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', () => { | ||
| const storedTheme = getStoredTheme() | ||
| if (storedTheme !== 'light' && storedTheme !== 'dark') { | ||
| setTheme(getPreferredTheme()) | ||
| } | ||
| }) | ||
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| window.addEventListener('DOMContentLoaded', () => { | ||
| showActiveTheme(getPreferredTheme()) | ||
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| document.querySelectorAll('[data-bs-theme-value]') | ||
| .forEach(toggle => { | ||
| toggle.addEventListener('click', () => { | ||
| const theme = toggle.getAttribute('data-bs-theme-value') | ||
| setStoredTheme(theme) | ||
| setTheme(theme) | ||
| showActiveTheme(theme, true) | ||
| }) | ||
| }) | ||
| }) | ||
| })() | ||
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This need to be installed via npm when using Gulp or Webpack, and imported in
project.scss: