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refactor: split apply-dark-mode hook into multiple hooks

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Signed-off-by: Tilman Vatteroth <git@tilmanvatteroth.de>
This commit is contained in:
Tilman Vatteroth 2023-04-26 20:47:05 +02:00
parent bcff03ef99
commit a23c215d8d
8 changed files with 70 additions and 60 deletions
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23
frontend/src/hooks/dark-mode/use-apply-dark-mode-style.ts Normal file
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/*
* SPDX-FileCopyrightText: 2023 The HedgeDoc developers (see AUTHORS file)
*
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { useDarkModeState } from './use-dark-mode-state'
import { useEffect } from 'react'
/**
* Applies the dark mode by adding a css class to the body tag.
*/
export const useApplyDarkModeStyle = (): void => {
const darkMode = useDarkModeState()
useEffect(() => {
if (darkMode) {
window.document.body.classList.add('dark')
} else {
window.document.body.classList.remove('dark')
}
}, [darkMode])
useEffect(() => () => window.document.body.classList.remove('dark'), [])
}

51
frontend/src/hooks/dark-mode/use-apply-dark-mode.ts
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/*
* SPDX-FileCopyrightText: 2023 The HedgeDoc developers (see AUTHORS file)
*
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { DarkModePreference } from '../../redux/dark-mode/types'
import { isClientSideRendering } from '../../utils/is-client-side-rendering'
import { Logger } from '../../utils/logger'
import { useApplicationState } from '../common/use-application-state'
import useMediaQuery from '@restart/hooks/useMediaQuery'
import { useEffect } from 'react'
const logger = new Logger('useApplyDarkMode')
export const DARK_MODE_LOCAL_STORAGE_KEY = 'forcedDarkMode'
/**
* Applies the `dark` css class to the body tag according to the dark mode state.
*/
export const useApplyDarkMode = (): void => {
const preference = useApplicationState((state) => state.darkMode.darkModePreference)
const isBrowserPreferringDark = useMediaQuery('(prefers-color-scheme: dark)')
useEffect(() => saveToLocalStorage(preference), [preference])
useEffect(() => {
if (preference === DarkModePreference.DARK || (preference === DarkModePreference.AUTO && isBrowserPreferringDark)) {
window.document.body.classList.add('dark')
} else {
window.document.body.classList.remove('dark')
}
}, [isBrowserPreferringDark, preference])
useEffect(() => () => window.document.body.classList.remove('dark'), [])
}
export const saveToLocalStorage = (preference: DarkModePreference): void => {
if (!isClientSideRendering()) {
return
}
try {
if (preference === DarkModePreference.DARK) {
window.localStorage.setItem(DARK_MODE_LOCAL_STORAGE_KEY, 'dark')
} else if (preference === DarkModePreference.LIGHT) {
window.localStorage.setItem(DARK_MODE_LOCAL_STORAGE_KEY, 'light')
} else if (preference === DarkModePreference.AUTO) {
window.localStorage.removeItem(DARK_MODE_LOCAL_STORAGE_KEY)
}
} catch (error) {
logger.error('Saving to local storage failed', error)
}
}

33
frontend/src/hooks/dark-mode/use-save-dark-mode-preference-to-local-storage.ts Normal file
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/*
* SPDX-FileCopyrightText: 2023 The HedgeDoc developers (see AUTHORS file)
*
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { DarkModePreference } from '../../redux/dark-mode/types'
import { Logger } from '../../utils/logger'
import { useApplicationState } from '../common/use-application-state'
import { useEffect } from 'react'
const logger = new Logger('useSaveDarkModeToLocalStorage')
export const DARK_MODE_LOCAL_STORAGE_KEY = 'forcedDarkMode'
/**
* Saves the dark mode preference of the user in the browser's local storage.
*/
export const useSaveDarkModePreferenceToLocalStorage = () => {
const preference = useApplicationState((state) => state.darkMode.darkModePreference)
useEffect(() => {
try {
if (preference === DarkModePreference.DARK) {
window.localStorage.setItem(DARK_MODE_LOCAL_STORAGE_KEY, 'dark')
} else if (preference === DarkModePreference.LIGHT) {
window.localStorage.setItem(DARK_MODE_LOCAL_STORAGE_KEY, 'light')
} else if (preference === DarkModePreference.AUTO) {
window.localStorage.removeItem(DARK_MODE_LOCAL_STORAGE_KEY)
}
} catch (error) {
logger.error('Saving to local storage failed', error)
}
}, [preference])
}