47 lines
1.1 KiB
JavaScript
47 lines
1.1 KiB
JavaScript
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import { ref, watch } from '@vue/composition-api'
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/**
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* @typedef {string} Theme
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*/
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const THEMES = {
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dark: 'dark',
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light: 'light',
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purple: 'purple'
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}
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const initialTheme = localStorage.getItem('selectedTheme') || document.documentElement.dataset.theme || THEMES.dark
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const currentTheme = ref(initialTheme)
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watch(currentTheme, (newTheme, oldTheme) => {
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// No operation needed
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if (oldTheme === newTheme) return
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localStorage.setItem('selectedTheme', newTheme)
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document.documentElement.dataset.theme = newTheme
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animateAllElements()
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})
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function animateAllElements() {
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// Animating everything to have a smoother theme switch
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const allElements = document.querySelectorAll('*')
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allElements.forEach(el => {
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el.classList.add('changing-theme')
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})
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document.documentElement.addEventListener('transitionend', function transitionHandler() {
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allElements.forEach(el => {
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el.classList.remove('changing-theme')
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})
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document.documentElement.removeEventListener('transitionend', transitionHandler)
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})
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}
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export const useTheme = () => ({
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THEMES,
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currentTheme
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})
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