+ private static KEYS = {
+ LAST_ACTIVE_THEME: 'last_active_theme'
+ }
+
+ private oldThemeName: string
+ private themes: ServerConfigTheme[] = []
+
+ private themeFromLocalStorage: ServerConfigTheme
+ private themeDOMLinksFromLocalStorage: HTMLLinkElement[] = []
+
+ constructor (
+ private auth: AuthService,
+ private pluginService: PluginService,
+ private server: ServerService
+ ) {}
+
+ initialize () {
+ // Try to load from local storage first, so we don't have to wait network requests
+ this.loadAndSetFromLocalStorage()
+
+ this.server.configLoaded
+ .subscribe(() => {
+ const themes = this.server.getConfig().theme.registered
+
+ this.removeThemeFromLocalStorageIfNeeded(themes)
+ this.injectThemes(themes)
+
+ this.listenUserTheme()
+ })
+ }
+
+ private injectThemes (themes: ServerConfigTheme[], fromLocalStorage = false) {
+ this.themes = themes
+
+ console.log('Injecting %d themes.', this.themes.length)
+
+ 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')
+
+ const href = environment.apiUrl + `/themes/${theme.name}/${theme.version}/css/${css}`
+ link.setAttribute('href', href)
+ link.setAttribute('rel', 'alternate stylesheet')
+ link.setAttribute('type', 'text/css')
+ link.setAttribute('title', theme.name)
+ link.setAttribute('disabled', '')
+
+ if (fromLocalStorage === true) this.themeDOMLinksFromLocalStorage.push(link)
+
+ head.appendChild(link)
+ }
+ }
+ }
+
+ private getCurrentTheme () {
+ if (this.themeFromLocalStorage) return this.themeFromLocalStorage.name
+
+ if (this.auth.isLoggedIn()) {
+ const theme = this.auth.getUser().theme
+ if (theme !== 'instance-default') return theme
+ }
+
+ return this.server.getConfig().theme.default
+ }
+
+ 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')) {
+ link.disabled = link.getAttribute('title') !== name
+ }
+ }
+ }
+
+ private updateCurrentTheme () {
+ if (this.oldThemeName) this.removeThemePlugins(this.oldThemeName)
+
+ const currentTheme = this.getCurrentTheme()
+
+ console.log('Enabling %s theme.', currentTheme)
+
+ this.loadTheme(currentTheme)
+
+ const theme = this.getTheme(currentTheme)
+ if (theme) {
+ console.log('Adding scripts of theme %s.', currentTheme)
+ this.pluginService.addPlugin(theme, true)
+
+ this.pluginService.reloadLoadedScopes()
+
+ peertubeLocalStorage.setItem(ThemeService.KEYS.LAST_ACTIVE_THEME, JSON.stringify(theme))
+ } else {
+ peertubeLocalStorage.removeItem(ThemeService.KEYS.LAST_ACTIVE_THEME)
+ }
+
+ this.oldThemeName = currentTheme
+ }
+
+ private listenUserTheme () {
+ // We don't need them anymore
+ this.themeFromLocalStorage = undefined
+ this.themeDOMLinksFromLocalStorage = []
+
+ if (!this.auth.isLoggedIn()) {
+ this.updateCurrentTheme()
+ }