| 1 | import { isClient, useLocalStorage, usePreferredDark, useToggle } from '@vueuse/core' |
| 2 | import { computed, watch } from 'vue' |
| 3 | import { configs } from '../env' |
| 4 | |
| 5 | const preferredDark = usePreferredDark() |
| 6 | const store = useLocalStorage('slidev-color-schema', 'auto') |
| 7 | |
| 8 | export const isColorSchemaConfigured = computed(() => configs.colorSchema !== 'auto') |
| 9 | export const isDark = computed<boolean>({ |
| 10 | get() { |
| 11 | if (isColorSchemaConfigured.value) |
| 12 | return configs.colorSchema === 'dark' |
| 13 | return store.value === 'auto' |
| 14 | ? preferredDark.value |
| 15 | : store.value === 'dark' |
| 16 | }, |
| 17 | set(v) { |
| 18 | if (isColorSchemaConfigured.value) |
| 19 | return |
| 20 | store.value = v === preferredDark.value |
| 21 | ? 'auto' |
| 22 | : v ? 'dark' : 'light' |
| 23 | }, |
| 24 | }) |
| 25 | |
| 26 | export const toggleDark = useToggle(isDark) |
| 27 | |
| 28 | if (isClient) { |
| 29 | const CSS_DISABLE_TRANS = '*,*::before,*::after{-webkit-transition:none!important;-moz-transition:none!important;-o-transition:none!important;-ms-transition:none!important;transition:none!important}' |
| 30 | |
| 31 | watch( |
| 32 | isDark, |
| 33 | (v) => { |
| 34 | const style = window!.document.createElement('style') |
| 35 | style.appendChild(document.createTextNode(CSS_DISABLE_TRANS)) |
| 36 | window!.document.head.appendChild(style) |
| 37 | |
| 38 | const html = document.querySelector('html')! |
| 39 | html.classList.toggle('dark', v) |
| 40 | html.classList.toggle('light', !v) |
| 41 | |
| 42 | // Calling getComputedStyle forces the browser to redraw |
| 43 | // @ts-expect-error unused variable |
| 44 | const _ = window!.getComputedStyle(style!).opacity |
| 45 | document.head.removeChild(style!) |
| 46 | }, |
| 47 | { immediate: true }, |
| 48 | ) |
| 49 | } |
| 50 |