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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,19 +1,72 @@ | ||
| import * as React from 'react'; | ||
| import { ToggleButton, IconContainer } from './styled.elements'; | ||
| import { ToggleButton, IconContainer, Placeholder } from './styled.elements'; | ||
| import { SunSvg } from './SunSvg'; | ||
| import { MoonSvg } from './MoonSvg'; | ||
|
|
||
| interface DarkModeToggleProps { | ||
| interface DarkModeToggleState { | ||
| darkMode: boolean; | ||
| onToggle: () => void; | ||
| isMounted: boolean; | ||
| } | ||
|
|
||
| const DarkModeToggleComponent = ({ darkMode, onToggle }: DarkModeToggleProps) => { | ||
| return ( | ||
| <ToggleButton onClick={onToggle}> | ||
| <IconContainer>{darkMode ? <MoonSvg /> : <SunSvg />}</IconContainer> | ||
| </ToggleButton> | ||
| export const DARK_THEME_CLASSNAME = 'dark-theme'; | ||
| export const LIGHT_THEME_CLASSNAME = 'light-theme'; | ||
| export const SYSTEM_THEME_CLASSNAME = 'system'; | ||
|
|
||
| function changeClass(darkMode: 'dark-theme' | 'light-theme') { | ||
| const docClassList = | ||
| typeof window !== 'undefined' && window?.document?.documentElement?.classList; | ||
| if (!docClassList) return; | ||
| docClassList.add(darkMode); | ||
| const removeClassnames = new Set([ | ||
| LIGHT_THEME_CLASSNAME, | ||
| DARK_THEME_CLASSNAME, | ||
| SYSTEM_THEME_CLASSNAME, | ||
| ]); | ||
| removeClassnames.delete(darkMode); | ||
| removeClassnames.forEach(className => { | ||
| if (className !== darkMode) docClassList.remove(className); | ||
| }); | ||
|
|
||
| const localStorageDarkMode = JSON.parse(localStorage.getItem('mongodb-docs') ?? '{}'); | ||
| localStorage.setItem( | ||
| 'mongodb-docs', | ||
| JSON.stringify({ ...localStorageDarkMode, theme: darkMode }), | ||
| ); | ||
| }; | ||
| } | ||
|
|
||
| export class DarkModeToggle extends React.Component<Record<string, never>, DarkModeToggleState> { | ||
| constructor(props) { | ||
| super(props); | ||
| this.state = { darkMode: false, isMounted: false }; | ||
|
|
||
| this.onToggleDarkMode = this.onToggleDarkMode.bind(this); | ||
| } | ||
|
|
||
| export const DarkModeToggle = React.memo<DarkModeToggleProps>(DarkModeToggleComponent); | ||
| componentDidMount() { | ||
| let initialDarkMode = false; | ||
| if (typeof window !== 'undefined') { | ||
| const localStorageDarkMode = JSON.parse(localStorage?.getItem('mongodb-docs') ?? '{}')?.[ | ||
| 'theme' | ||
| ]; | ||
| initialDarkMode = localStorageDarkMode === 'dark-theme'; | ||
| } | ||
| changeClass(initialDarkMode ? 'dark-theme' : 'light-theme'); | ||
|
|
||
| this.setState({ darkMode: initialDarkMode, isMounted: true }); | ||
| } | ||
|
|
||
| onToggleDarkMode() { | ||
| changeClass(this.state.darkMode ? 'light-theme' : 'dark-theme'); | ||
| this.setState({ darkMode: !this.state.darkMode }); | ||
| } | ||
|
|
||
| render() { | ||
| if (!this.state.isMounted) return <Placeholder />; | ||
|
|
||
| return ( | ||
| <ToggleButton onClick={this.onToggleDarkMode}> | ||
| <IconContainer>{this.state.darkMode ? <MoonSvg /> : <SunSvg />}</IconContainer> | ||
| </ToggleButton> | ||
| ); | ||
| } | ||
| } |
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