+import { first } from 'rxjs/operators'
import { Injectable } from '@angular/core'
-import { AuthService } from '@app/core/auth'
-import { ServerService } from '@app/core/server'
+import { UserLocalStorageKeys } from '@root-helpers/users'
+import { HTMLServerConfig, ServerConfigTheme } from '@shared/models'
import { environment } from '../../../environments/environment'
-import { PluginService } from '@app/core/plugins/plugin.service'
-import { ServerConfigTheme } from '@shared/models'
+import { AuthService } from '../auth'
+import { PluginService } from '../plugins/plugin.service'
+import { ServerService } from '../server'
+import { UserService } from '../users/user.service'
+import { LocalStorageService } from '../wrappers/storage.service'
@Injectable()
export class ThemeService {
private oldThemeName: string
private themes: ServerConfigTheme[] = []
+ private themeFromLocalStorage: ServerConfigTheme
+ private themeDOMLinksFromLocalStorage: HTMLLinkElement[] = []
+
+ private serverConfig: HTMLServerConfig
+
constructor (
private auth: AuthService,
+ private userService: UserService,
private pluginService: PluginService,
- private server: ServerService
+ private server: ServerService,
+ private localStorageService: LocalStorageService
) {}
initialize () {
- this.server.configLoaded
- .subscribe(() => {
- this.injectThemes()
+ // Try to load from local storage first, so we don't have to wait network requests
+ this.loadAndSetFromLocalStorage()
+
+ this.serverConfig = this.server.getHTMLConfig()
+ const themes = this.serverConfig.theme.registered
- this.listenUserTheme()
- })
+ this.removeThemeFromLocalStorageIfNeeded(themes)
+ this.injectThemes(themes)
+
+ this.listenUserTheme()
}
- private injectThemes () {
- this.themes = this.server.getConfig().theme.registered
+ private injectThemes (themes: ServerConfigTheme[], fromLocalStorage = false) {
+ this.themes = themes
console.log('Injecting %d themes.', this.themes.length)
- const head = document.getElementsByTagName('head')[0]
+ const head = this.getHeadElement()
for (const theme of this.themes) {
+ // Already added this theme?
+ if (fromLocalStorage === false && this.themeFromLocalStorage && this.themeFromLocalStorage.name === theme.name) continue
for (const css of theme.css) {
const link = document.createElement('link')
link.setAttribute('title', theme.name)
link.setAttribute('disabled', '')
+ if (fromLocalStorage === true) this.themeDOMLinksFromLocalStorage.push(link)
+
head.appendChild(link)
}
}
}
private getCurrentTheme () {
- if (this.auth.isLoggedIn()) {
- const theme = this.auth.getUser().theme
- if (theme !== 'instance-default') return theme
+ if (this.themeFromLocalStorage) return this.themeFromLocalStorage.name
+
+ const theme = this.auth.isLoggedIn()
+ ? this.auth.getUser().theme
+ : this.userService.getAnonymousUser().theme
+
+ if (theme !== 'instance-default') return theme
+
+ const instanceTheme = this.serverConfig.theme.default
+ if (instanceTheme !== 'default') return instanceTheme
+
+ // Default to dark theme if available and wanted by the user
+ if (
+ this.themes.find(t => t.name === 'dark') &&
+ window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches
+ ) {
+ return 'dark'
}
- return this.server.getConfig().theme.default
+ return instanceTheme
}
private loadTheme (name: string) {
const links = document.getElementsByTagName('link')
for (let i = 0; i < links.length; i++) {
- const link = links[ i ]
- if (link.getAttribute('rel').indexOf('style') !== -1 && link.getAttribute('title')) {
+ const link = links[i]
+ if (link.getAttribute('rel').includes('style') && link.getAttribute('title')) {
link.disabled = link.getAttribute('title') !== name
}
}
}
private updateCurrentTheme () {
- if (this.oldThemeName) {
- const oldTheme = this.getTheme(this.oldThemeName)
- if (oldTheme) {
- console.log('Removing scripts of old theme %s.', this.oldThemeName)
- this.pluginService.removePlugin(oldTheme)
- }
- }
+ if (this.oldThemeName) this.removeThemePlugins(this.oldThemeName)
const currentTheme = this.getCurrentTheme()
const theme = this.getTheme(currentTheme)
if (theme) {
console.log('Adding scripts of theme %s.', currentTheme)
+
this.pluginService.addPlugin(theme, true)
this.pluginService.reloadLoadedScopes()
+
+ this.localStorageService.setItem(UserLocalStorageKeys.LAST_ACTIVE_THEME, JSON.stringify(theme), false)
+ } else {
+ this.localStorageService.removeItem(UserLocalStorageKeys.LAST_ACTIVE_THEME, false)
}
this.oldThemeName = currentTheme
}
private listenUserTheme () {
+ // We don't need them anymore
+ this.themeFromLocalStorage = undefined
+ this.themeDOMLinksFromLocalStorage = []
+
if (!this.auth.isLoggedIn()) {
this.updateCurrentTheme()
+
+ this.localStorageService.watch([ UserLocalStorageKeys.THEME ]).subscribe(
+ () => this.updateCurrentTheme()
+ )
}
this.auth.userInformationLoaded
.subscribe(() => this.updateCurrentTheme())
}
+ private loadAndSetFromLocalStorage () {
+ const lastActiveThemeString = this.localStorageService.getItem(UserLocalStorageKeys.LAST_ACTIVE_THEME)
+ if (!lastActiveThemeString) return
+
+ try {
+ const lastActiveTheme = JSON.parse(lastActiveThemeString)
+ this.themeFromLocalStorage = lastActiveTheme
+
+ this.injectThemes([ lastActiveTheme ], true)
+ this.updateCurrentTheme()
+ } catch (err) {
+ console.error('Cannot parse last active theme.', err)
+ return
+ }
+ }
+
+ private removeThemePlugins (themeName: string) {
+ const oldTheme = this.getTheme(themeName)
+ if (oldTheme) {
+ console.log('Removing scripts of old theme %s.', themeName)
+ this.pluginService.removePlugin(oldTheme)
+ }
+ }
+
+ private removeThemeFromLocalStorageIfNeeded (themes: ServerConfigTheme[]) {
+ if (!this.themeFromLocalStorage) return
+
+ const loadedTheme = themes.find(t => t.name === this.themeFromLocalStorage.name)
+ if (!loadedTheme || loadedTheme.version !== this.themeFromLocalStorage.version) {
+ // Need to remove this theme: we loaded an old version or a theme that does not exist anymore
+ this.removeThemePlugins(this.themeFromLocalStorage.name)
+ this.oldThemeName = undefined
+
+ const head = this.getHeadElement()
+ for (const htmlLinkElement of this.themeDOMLinksFromLocalStorage) {
+ head.removeChild(htmlLinkElement)
+ }
+
+ this.themeFromLocalStorage = undefined
+ this.themeDOMLinksFromLocalStorage = []
+ }
+ }
+
+ private getHeadElement () {
+ return document.getElementsByTagName('head')[0]
+ }
+
private getTheme (name: string) {
return this.themes.find(t => t.name === name)
}
projects / github / Chocobozzz / PeerTube.git / blobdiff