client/src/app/app.component.ts

   1 import { Hotkey, HotkeysService } from 'angular2-hotkeys'
   2 import { concat } from 'rxjs'
   3 import { filter, first, map, pairwise } from 'rxjs/operators'
   4 import { DOCUMENT, PlatformLocation, ViewportScroller } from '@angular/common'
   5 import { AfterViewInit, Component, Inject, LOCALE_ID, OnInit, ViewChild } from '@angular/core'
   6 import { DomSanitizer, SafeHtml } from '@angular/platform-browser'
   7 import { Event, GuardsCheckStart, NavigationEnd, Router, Scroll } from '@angular/router'
   8 import { AuthService, MarkdownService, RedirectService, ScreenService, ServerService, ThemeService, User } from '@app/core'
   9 import { HooksService } from '@app/core/plugins/hooks.service'
  10 import { PluginService } from '@app/core/plugins/plugin.service'
  11 import { CustomModalComponent } from '@app/modal/custom-modal.component'
  12 import { InstanceConfigWarningModalComponent } from '@app/modal/instance-config-warning-modal.component'
  13 import { WelcomeModalComponent } from '@app/modal/welcome-modal.component'
  14 import { NgbModal } from '@ng-bootstrap/ng-bootstrap'
  15 import { I18n } from '@ngx-translate/i18n-polyfill'
  16 import { getShortLocale, is18nPath } from '@shared/core-utils/i18n'
  17 import { BroadcastMessageLevel, ServerConfig, UserRole } from '@shared/models'
  18 import { MenuService } from './core/menu/menu.service'
  19 import { POP_STATE_MODAL_DISMISS } from './helpers'
  20 import { peertubeLocalStorage } from '@root-helpers/peertube-web-storage'
  21 import { InstanceService } from './shared/shared-instance'
  22
  23 @Component({
  24   selector: 'my-app',
  25   templateUrl: './app.component.html',
  26   styleUrls: [ './app.component.scss' ]
  27 })
  28 export class AppComponent implements OnInit, AfterViewInit {
  29   private static BROADCAST_MESSAGE_KEY = 'app-broadcast-message-dismissed'
  30
  31   @ViewChild('welcomeModal') welcomeModal: WelcomeModalComponent
  32   @ViewChild('instanceConfigWarningModal') instanceConfigWarningModal: InstanceConfigWarningModalComponent
  33   @ViewChild('customModal') customModal: CustomModalComponent
  34
  35   customCSS: SafeHtml
  36   broadcastMessage: { message: string, dismissable: boolean, class: string } | null = null
  37
  38   private serverConfig: ServerConfig
  39
  40   constructor (
  41     @Inject(DOCUMENT) private document: Document,
  42     @Inject(LOCALE_ID) private localeId: string,
  43     private i18n: I18n,
  44     private viewportScroller: ViewportScroller,
  45     private router: Router,
  46     private authService: AuthService,
  47     private serverService: ServerService,
  48     private pluginService: PluginService,
  49     private instanceService: InstanceService,
  50     private domSanitizer: DomSanitizer,
  51     private redirectService: RedirectService,
  52     private screenService: ScreenService,
  53     private hotkeysService: HotkeysService,
  54     private themeService: ThemeService,
  55     private hooks: HooksService,
  56     private location: PlatformLocation,
  57     private modalService: NgbModal,
  58     private markdownService: MarkdownService,
  59     public menu: MenuService
  60   ) { }
  61
  62   get instanceName () {
  63     return this.serverConfig.instance.name
  64   }
  65
  66   get defaultRoute () {
  67     return RedirectService.DEFAULT_ROUTE
  68   }
  69
  70   ngOnInit () {
  71     document.getElementById('incompatible-browser').className += ' browser-ok'
  72
  73     this.serverConfig = this.serverService.getTmpConfig()
  74     this.serverService.getConfig()
  75         .subscribe(config => this.serverConfig = config)
  76
  77     this.loadPlugins()
  78     this.themeService.initialize()
  79
  80     this.authService.loadClientCredentials()
  81
  82     if (this.isUserLoggedIn()) {
  83       // The service will automatically redirect to the login page if the token is not valid anymore
  84       this.authService.refreshUserInformation()
  85     }
  86
  87     this.initRouteEvents()
  88     this.injectJS()
  89     this.injectCSS()
  90     this.injectBroadcastMessage()
  91
  92     this.initHotkeys()
  93
  94     this.location.onPopState(() => this.modalService.dismissAll(POP_STATE_MODAL_DISMISS))
  95
  96     this.openModalsIfNeeded()
  97
  98     this.document.documentElement.lang = getShortLocale(this.localeId)
  99   }
 100
 101   ngAfterViewInit () {
 102     this.pluginService.initializeCustomModal(this.customModal)
 103   }
 104
 105   isUserLoggedIn () {
 106     return this.authService.isLoggedIn()
 107   }
 108
 109   hideBroadcastMessage () {
 110     peertubeLocalStorage.setItem(AppComponent.BROADCAST_MESSAGE_KEY, this.serverConfig.broadcastMessage.message)
 111
 112     this.broadcastMessage = null
 113   }
 114
 115   private initRouteEvents () {
 116     let resetScroll = true
 117     const eventsObs = this.router.events
 118
 119     const scrollEvent = eventsObs.pipe(filter((e: Event): e is Scroll => e instanceof Scroll))
 120
 121     scrollEvent.subscribe(e => {
 122       // scrollToAnchor first to preserve anchor position when using history navigation
 123       if (e.anchor) {
 124         setTimeout(() => {
 125           this.viewportScroller.scrollToAnchor(e.anchor)
 126         })
 127
 128         return
 129       }
 130
 131       if (e.position) {
 132         return this.viewportScroller.scrollToPosition(e.position)
 133       }
 134
 135       if (resetScroll) {
 136         return this.viewportScroller.scrollToPosition([ 0, 0 ])
 137       }
 138     })
 139
 140     const navigationEndEvent = eventsObs.pipe(filter((e: Event): e is NavigationEnd => e instanceof NavigationEnd))
 141
 142     // When we add the a-state parameter, we don't want to alter the scroll
 143     navigationEndEvent.pipe(pairwise())
 144                       .subscribe(([ e1, e2 ]) => {
 145                         try {
 146                           resetScroll = false
 147
 148                           const previousUrl = new URL(window.location.origin + e1.urlAfterRedirects)
 149                           const nextUrl = new URL(window.location.origin + e2.urlAfterRedirects)
 150
 151                           if (previousUrl.pathname !== nextUrl.pathname) {
 152                             resetScroll = true
 153                             return
 154                           }
 155
 156                           const nextSearchParams = nextUrl.searchParams
 157                           nextSearchParams.delete('a-state')
 158
 159                           const previousSearchParams = previousUrl.searchParams
 160
 161                           nextSearchParams.sort()
 162                           previousSearchParams.sort()
 163
 164                           if (nextSearchParams.toString() !== previousSearchParams.toString()) {
 165                             resetScroll = true
 166                           }
 167                         } catch (e) {
 168                           console.error('Cannot parse URL to check next scroll.', e)
 169                           resetScroll = true
 170                         }
 171                       })
 172
 173     navigationEndEvent.pipe(
 174       map(() => window.location.pathname),
 175       filter(pathname => !pathname || pathname === '/' || is18nPath(pathname))
 176     ).subscribe(() => this.redirectService.redirectToHomepage(true))
 177
 178     navigationEndEvent.subscribe(e => {
 179       this.hooks.runAction('action:router.navigation-end', 'common', { path: e.url })
 180     })
 181
 182     eventsObs.pipe(
 183       filter((e: Event): e is GuardsCheckStart => e instanceof GuardsCheckStart),
 184       filter(() => this.screenService.isInSmallView())
 185     ).subscribe(() => this.menu.isMenuDisplayed = false) // User clicked on a link in the menu, change the page
 186   }
 187
 188   private injectBroadcastMessage () {
 189     concat(
 190       this.serverService.getConfig().pipe(first()),
 191       this.serverService.configReloaded
 192     ).subscribe(async config => {
 193       this.broadcastMessage = null
 194
 195       const messageConfig = config.broadcastMessage
 196
 197       if (messageConfig.enabled) {
 198         // Already dismissed this message?
 199         if (messageConfig.dismissable && localStorage.getItem(AppComponent.BROADCAST_MESSAGE_KEY) === messageConfig.message) {
 200           return
 201         }
 202
 203         const classes: { [id in BroadcastMessageLevel]: string } = {
 204           info: 'alert-info',
 205           warning: 'alert-warning',
 206           error: 'alert-danger'
 207         }
 208
 209         this.broadcastMessage = {
 210           message: await this.markdownService.completeMarkdownToHTML(messageConfig.message),
 211           dismissable: messageConfig.dismissable,
 212           class: classes[messageConfig.level]
 213         }
 214       }
 215     })
 216   }
 217
 218   private injectJS () {
 219     // Inject JS
 220     this.serverService.getConfig()
 221         .subscribe(config => {
 222           if (config.instance.customizations.javascript) {
 223             try {
 224               // tslint:disable:no-eval
 225               eval(config.instance.customizations.javascript)
 226             } catch (err) {
 227               console.error('Cannot eval custom JavaScript.', err)
 228             }
 229           }
 230         })
 231   }
 232
 233   private injectCSS () {
 234     // Inject CSS if modified (admin config settings)
 235     concat(
 236       this.serverService.getConfig().pipe(first()),
 237       this.serverService.configReloaded
 238     ).subscribe(config => {
 239       const headStyle = document.querySelector('style.custom-css-style')
 240       if (headStyle) headStyle.parentNode.removeChild(headStyle)
 241
 242       // We test customCSS if the admin removed the css
 243       if (this.customCSS || config.instance.customizations.css) {
 244         const styleTag = '<style>' + config.instance.customizations.css + '</style>'
 245         this.customCSS = this.domSanitizer.bypassSecurityTrustHtml(styleTag)
 246       }
 247     })
 248   }
 249
 250   private async loadPlugins () {
 251     this.pluginService.initializePlugins()
 252
 253     this.hooks.runAction('action:application.init', 'common')
 254   }
 255
 256   private async openModalsIfNeeded () {
 257     this.authService.userInformationLoaded
 258         .pipe(
 259           map(() => this.authService.getUser()),
 260           filter(user => user.role === UserRole.ADMINISTRATOR)
 261         ).subscribe(user => setTimeout(() => this._openAdminModalsIfNeeded(user))) // setTimeout because of ngIf in template
 262   }
 263
 264   private async _openAdminModalsIfNeeded (user: User) {
 265     if (user.noWelcomeModal !== true) return this.welcomeModal.show()
 266
 267     if (user.noInstanceConfigWarningModal === true || !this.serverConfig.signup.allowed) return
 268
 269     this.instanceService.getAbout()
 270       .subscribe(about => {
 271         if (
 272           this.serverConfig.instance.name.toLowerCase() === 'peertube' ||
 273           !about.instance.terms ||
 274           !about.instance.administrator ||
 275           !about.instance.maintenanceLifetime
 276         ) {
 277           this.instanceConfigWarningModal.show(about)
 278         }
 279       })
 280   }
 281
 282   private initHotkeys () {
 283     this.hotkeysService.add([
 284       new Hotkey(['/', 's'], (event: KeyboardEvent): boolean => {
 285         document.getElementById('search-video').focus()
 286         return false
 287       }, undefined, this.i18n('Focus the search bar')),
 288
 289       new Hotkey('b', (event: KeyboardEvent): boolean => {
 290         this.menu.toggleMenu()
 291         return false
 292       }, undefined, this.i18n('Toggle the left menu')),
 293
 294       new Hotkey('g o', (event: KeyboardEvent): boolean => {
 295         this.router.navigate([ '/videos/overview' ])
 296         return false
 297       }, undefined, this.i18n('Go to the discover videos page')),
 298
 299       new Hotkey('g t', (event: KeyboardEvent): boolean => {
 300         this.router.navigate([ '/videos/trending' ])
 301         return false
 302       }, undefined, this.i18n('Go to the trending videos page')),
 303
 304       new Hotkey('g r', (event: KeyboardEvent): boolean => {
 305         this.router.navigate([ '/videos/recently-added' ])
 306         return false
 307       }, undefined, this.i18n('Go to the recently added videos page')),
 308
 309       new Hotkey('g l', (event: KeyboardEvent): boolean => {
 310         this.router.navigate([ '/videos/local' ])
 311         return false
 312       }, undefined, this.i18n('Go to the local videos page')),
 313
 314       new Hotkey('g u', (event: KeyboardEvent): boolean => {
 315         this.router.navigate([ '/videos/upload' ])
 316         return false
 317       }, undefined, this.i18n('Go to the videos upload page'))
 318     ])
 319   }
 320 }