X-Git-Url: https://git.immae.eu/?a=blobdiff_plain;f=client%2Fsrc%2Fapp%2Fcore%2Ftheme%2Ftheme.service.ts;h=ac34689419df7a271cb7edc05ace477904083e85;hb=0882c8e6509b2a4ea48f6c48ecb2aa4aa371500a;hp=50c19ecac38f3404f5645400231cd0c9c8a7f7ca;hpb=244b4ae3973bc1511464a08158a123767f83179c;p=github%2FChocobozzz%2FPeerTube.git

diff --git a/client/src/app/core/theme/theme.service.ts b/client/src/app/core/theme/theme.service.ts
index 50c19ecac..ac3468941 100644
--- a/client/src/app/core/theme/theme.service.ts
+++ b/client/src/app/core/theme/theme.service.ts
@@ -1,41 +1,197 @@
+import { first } from 'rxjs/operators'
 import { Injectable } from '@angular/core'
-import { peertubeLocalStorage } from '@app/shared/misc/peertube-local-storage'
+import { UserLocalStorageKeys } from '@root-helpers/users'
+import { HTMLServerConfig, ServerConfigTheme } from '@shared/models'
+import { environment } from '../../../environments/environment'
+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 theme = document.querySelector('body')
-  private darkTheme = false
-  private previousTheme: { [ id: string ]: string } = {}
 
-  constructor () {
-    // initialise the alternative theme with dark theme colors
-    this.previousTheme['mainBackgroundColor'] = '#111111'
-    this.previousTheme['mainForegroundColor'] = '#fff'
-    this.previousTheme['submenuColor'] = 'rgb(32,32,32)'
-    this.previousTheme['inputColor'] = 'gray'
-    this.previousTheme['inputPlaceholderColor'] = '#fff'
+  private oldThemeName: string
+  private themes: ServerConfigTheme[] = []
 
-    this.darkTheme = (peertubeLocalStorage.getItem('theme') === 'dark')
-    if (this.darkTheme) this.toggleDarkTheme(false)
+  private themeFromLocalStorage: ServerConfigTheme
+  private themeDOMLinksFromLocalStorage: HTMLLinkElement[] = []
+
+  private serverConfig: HTMLServerConfig
+
+  constructor (
+    private auth: AuthService,
+    private userService: UserService,
+    private pluginService: PluginService,
+    private server: ServerService,
+    private localStorageService: LocalStorageService
+  ) {}
+
+  initialize () {
+    // 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.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
+
+    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 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').includes('style') && 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()
+
+      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
+    }
   }
 
-  toggleDarkTheme (setLocalStorage = true) {
-    // switch properties
-    this.switchProperty('mainBackgroundColor')
-    this.switchProperty('mainForegroundColor')
-    this.switchProperty('submenuColor')
-    this.switchProperty('inputColor')
-    this.switchProperty('inputPlaceholderColor')
+  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
 
-    if (setLocalStorage) {
-      this.darkTheme = !this.darkTheme
-      peertubeLocalStorage.setItem('theme', (this.darkTheme) ? 'dark' : 'default')
+      const head = this.getHeadElement()
+      for (const htmlLinkElement of this.themeDOMLinksFromLocalStorage) {
+        head.removeChild(htmlLinkElement)
+      }
+
+      this.themeFromLocalStorage = undefined
+      this.themeDOMLinksFromLocalStorage = []
     }
   }
 
-  private switchProperty (property: string, newValue?: string) {
-    const propertyOldvalue = window.getComputedStyle(this.theme).getPropertyValue('--' + property)
-    this.theme.style.setProperty('--' + property, (newValue) ? newValue : this.previousTheme[property])
-    this.previousTheme[property] = propertyOldvalue
+  private getHeadElement () {
+    return document.getElementsByTagName('head')[0]
+  }
+
+  private getTheme (name: string) {
+    return this.themes.find(t => t.name === name)
   }
 }