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Merge pull request #143 from vsimakhin/feature/dark-mode
Feature/dark mode
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| (() => { | ||
| 'use strict' | ||
|
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| const storedTheme = localStorage.getItem('theme') | ||
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| const getPreferredTheme = () => { | ||
| if (storedTheme) { | ||
| return storedTheme | ||
| } | ||
|
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| return window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light' | ||
| } | ||
|
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| const setTheme = function (theme) { | ||
| if (theme === 'auto' && window.matchMedia('(prefers-color-scheme: dark)').matches) { | ||
| document.documentElement.setAttribute('data-bs-theme', 'dark') | ||
| } 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('#active-theme-i') | ||
| const btnToActive = document.querySelector(`[data-bs-theme-value="${theme}"]`) | ||
| const iconOfActiveBtn = btnToActive.querySelector('i a').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('class', `bi ${iconOfActiveBtn.replace('#','')}`) | ||
| const themeSwitcherLabel = `${themeSwitcherText.textContent}` | ||
| 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', () => { | ||
| 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') | ||
| localStorage.setItem('theme', theme) | ||
| setTheme(theme) | ||
| showActiveTheme(theme, true) | ||
| }) | ||
| }) | ||
| }) | ||
| })() |
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