37 lines
1.4 KiB
JavaScript
37 lines
1.4 KiB
JavaScript
import modeOptions from './modeOptions'
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export function activateMode (mode) {
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const rootElement = document.querySelector(':root')
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const options = modeOptions[mode]
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for (const k in options) {
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rootElement.style.setProperty(k, options[k])
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}
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}
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/**
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* Sets a color scheme for the website.
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* If browser supports "prefers-color-scheme" it will respect the setting for light or dark mode
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* otherwise it will set a dark theme during night time
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*/
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export default function setMode () {
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const isDarkMode = window.matchMedia('(prefers-color-scheme: dark)').matches
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const isLightMode = window.matchMedia('(prefers-color-scheme: light)').matches
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const isNotSpecified = window.matchMedia('(prefers-color-scheme: no-preference)').matches
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const hasNoSupport = !isDarkMode && !isLightMode && !isNotSpecified
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window.matchMedia('(prefers-color-scheme: dark)').addListener(e => e.matches && activateMode('dark'))
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window.matchMedia('(prefers-color-scheme: light)').addListener(e => e.matches && activateMode('light'))
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if (isDarkMode) activateMode('dark')
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if (isLightMode) activateMode('light')
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if (isNotSpecified || hasNoSupport) {
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console.log('You specified no preference for a color scheme or your browser does not support it. I schedule dark mode during night time.')
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const now = new Date()
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const hour = now.getHours()
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if (hour < 4 || hour >= 16) {
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activateMode('dark')
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}
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}
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}
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