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 { peertubeLocalStorage } from '@root-helpers/peertube-web-storage'
  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 { InstanceService } from './shared/shared-instance'
  21
  22 @Component({
  23   selector: 'my-app',
  24   templateUrl: './app.component.html',
  25   styleUrls: [ './app.component.scss' ]
  26 })
  27 export class AppComponent implements OnInit, AfterViewInit {
  28   private static BROADCAST_MESSAGE_KEY = 'app-broadcast-message-dismissed'
  29
  30   @ViewChild('welcomeModal') welcomeModal: WelcomeModalComponent
  31   @ViewChild('instanceConfigWarningModal') instanceConfigWarningModal: InstanceConfigWarningModalComponent
  32   @ViewChild('customModal') customModal: CustomModalComponent
  33
  34   customCSS: SafeHtml
  35   broadcastMessage: { message: string, dismissable: boolean, class: string } | null = null
  36
  37   private serverConfig: ServerConfig
  38
  39   constructor (
  40     @Inject(DOCUMENT) private document: Document,
  41     @Inject(LOCALE_ID) private localeId: string,
  42     private viewportScroller: ViewportScroller,
  43     private router: Router,
  44     private authService: AuthService,
  45     private serverService: ServerService,
  46     private pluginService: PluginService,
  47     private instanceService: InstanceService,
  48     private domSanitizer: DomSanitizer,
  49     private redirectService: RedirectService,
  50     private screenService: ScreenService,
  51     private hotkeysService: HotkeysService,
  52     private themeService: ThemeService,
  53     private hooks: HooksService,
  54     private location: PlatformLocation,
  55     private modalService: NgbModal,
  56     private markdownService: MarkdownService,
  57     public menu: MenuService
  58   ) { }
  59
  60   get instanceName () {
  61     return this.serverConfig.instance.name
  62   }
  63
  64   get defaultRoute () {
  65     return RedirectService.DEFAULT_ROUTE
  66   }
  67
  68   ngOnInit () {
  69     document.getElementById('incompatible-browser').className += ' browser-ok'
  70
  71     this.serverConfig = this.serverService.getTmpConfig()
  72     this.serverService.getConfig()
  73         .subscribe(config => this.serverConfig = config)
  74
  75     this.loadPlugins()
  76     this.themeService.initialize()
  77
  78     this.authService.loadClientCredentials()
  79
  80     if (this.isUserLoggedIn()) {
  81       // The service will automatically redirect to the login page if the token is not valid anymore
  82       this.authService.refreshUserInformation()
  83     }
  84
  85     this.initRouteEvents()
  86     this.injectJS()
  87     this.injectCSS()
  88     this.injectBroadcastMessage()
  89
  90     this.initHotkeys()
  91
  92     this.location.onPopState(() => this.modalService.dismissAll(POP_STATE_MODAL_DISMISS))
  93
  94     this.openModalsIfNeeded()
  95
  96     this.document.documentElement.lang = getShortLocale(this.localeId)
  97   }
  98
  99   ngAfterViewInit () {
 100     this.pluginService.initializeCustomModal(this.customModal)
 101   }
 102
 103   isUserLoggedIn () {
 104     return this.authService.isLoggedIn()
 105   }
 106
 107   hideBroadcastMessage () {
 108     peertubeLocalStorage.setItem(AppComponent.BROADCAST_MESSAGE_KEY, this.serverConfig.broadcastMessage.message)
 109
 110     this.broadcastMessage = null
 111     this.screenService.isBroadcastMessageDisplayed = false
 112   }
 113
 114   private initRouteEvents () {
 115     let resetScroll = true
 116     const eventsObs = this.router.events
 117
 118     const scrollEvent = eventsObs.pipe(filter((e: Event): e is Scroll => e instanceof Scroll))
 119
 120     scrollEvent.subscribe(e => {
 121       // scrollToAnchor first to preserve anchor position when using history navigation
 122       if (e.anchor) {
 123         setTimeout(() => {
 124           this.viewportScroller.scrollToAnchor(e.anchor)
 125         })
 126
 127         return
 128       }
 129
 130       if (e.position) {
 131         return this.viewportScroller.scrollToPosition(e.position)
 132       }
 133
 134       if (resetScroll) {
 135         return this.viewportScroller.scrollToPosition([ 0, 0 ])
 136       }
 137     })
 138
 139     const navigationEndEvent = eventsObs.pipe(filter((e: Event): e is NavigationEnd => e instanceof NavigationEnd))
 140
 141     // When we add the a-state parameter, we don't want to alter the scroll
 142     navigationEndEvent.pipe(pairwise())
 143                       .subscribe(([ e1, e2 ]) => {
 144                         try {
 145                           resetScroll = false
 146
 147                           const previousUrl = new URL(window.location.origin + e1.urlAfterRedirects)
 148                           const nextUrl = new URL(window.location.origin + e2.urlAfterRedirects)
 149
 150                           if (previousUrl.pathname !== nextUrl.pathname) {
 151                             resetScroll = true
 152                             return
 153                           }
 154
 155                           const nextSearchParams = nextUrl.searchParams
 156                           nextSearchParams.delete('a-state')
 157
 158                           const previousSearchParams = previousUrl.searchParams
 159
 160                           nextSearchParams.sort()
 161                           previousSearchParams.sort()
 162
 163                           if (nextSearchParams.toString() !== previousSearchParams.toString()) {
 164                             resetScroll = true
 165                           }
 166                         } catch (e) {
 167                           console.error('Cannot parse URL to check next scroll.', e)
 168                           resetScroll = true
 169                         }
 170                       })
 171
 172     navigationEndEvent.pipe(
 173       map(() => window.location.pathname),
 174       filter(pathname => !pathname || pathname === '/' || is18nPath(pathname))
 175     ).subscribe(() => this.redirectService.redirectToHomepage(true))
 176
 177     navigationEndEvent.subscribe(e => {
 178       this.hooks.runAction('action:router.navigation-end', 'common', { path: e.url })
 179     })
 180
 181     eventsObs.pipe(
 182       filter((e: Event): e is GuardsCheckStart => e instanceof GuardsCheckStart),
 183       filter(() => this.screenService.isInSmallView())
 184     ).subscribe(() => this.menu.isMenuDisplayed = false) // User clicked on a link in the menu, change the page
 185   }
 186
 187   private injectBroadcastMessage () {
 188     concat(
 189       this.serverService.getConfig().pipe(first()),
 190       this.serverService.configReloaded
 191     ).subscribe(async config => {
 192       this.broadcastMessage = null
 193       this.screenService.isBroadcastMessageDisplayed = false
 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         this.screenService.isBroadcastMessageDisplayed = true
 216       }
 217     })
 218   }
 219
 220   private injectJS () {
 221     // Inject JS
 222     this.serverService.getConfig()
 223         .subscribe(config => {
 224           if (config.instance.customizations.javascript) {
 225             try {
 226               // tslint:disable:no-eval
 227               eval(config.instance.customizations.javascript)
 228             } catch (err) {
 229               console.error('Cannot eval custom JavaScript.', err)
 230             }
 231           }
 232         })
 233   }
 234
 235   private injectCSS () {
 236     // Inject CSS if modified (admin config settings)
 237     concat(
 238       this.serverService.getConfig().pipe(first()),
 239       this.serverService.configReloaded
 240     ).subscribe(config => {
 241       const headStyle = document.querySelector('style.custom-css-style')
 242       if (headStyle) headStyle.parentNode.removeChild(headStyle)
 243
 244       // We test customCSS if the admin removed the css
 245       if (this.customCSS || config.instance.customizations.css) {
 246         const styleTag = '<style>' + config.instance.customizations.css + '</style>'
 247         this.customCSS = this.domSanitizer.bypassSecurityTrustHtml(styleTag)
 248       }
 249     })
 250   }
 251
 252   private async loadPlugins () {
 253     this.pluginService.initializePlugins()
 254
 255     this.hooks.runAction('action:application.init', 'common')
 256   }
 257
 258   private async openModalsIfNeeded () {
 259     this.authService.userInformationLoaded
 260         .pipe(
 261           map(() => this.authService.getUser()),
 262           filter(user => user.role === UserRole.ADMINISTRATOR)
 263         ).subscribe(user => setTimeout(() => this._openAdminModalsIfNeeded(user))) // setTimeout because of ngIf in template
 264   }
 265
 266   private async _openAdminModalsIfNeeded (user: User) {
 267     if (user.noWelcomeModal !== true) return this.welcomeModal.show()
 268
 269     if (user.noInstanceConfigWarningModal === true || !this.serverConfig.signup.allowed) return
 270
 271     this.instanceService.getAbout()
 272       .subscribe(about => {
 273         if (
 274           this.serverConfig.instance.name.toLowerCase() === 'peertube' ||
 275           !about.instance.terms ||
 276           !about.instance.administrator ||
 277           !about.instance.maintenanceLifetime
 278         ) {
 279           this.instanceConfigWarningModal.show(about)
 280         }
 281       })
 282   }
 283
 284   private initHotkeys () {
 285     this.hotkeysService.add([
 286       new Hotkey(['/', 's'], (event: KeyboardEvent): boolean => {
 287         document.getElementById('search-video').focus()
 288         return false
 289       }, undefined, $localize`Focus the search bar`),
 290
 291       new Hotkey('b', (event: KeyboardEvent): boolean => {
 292         this.menu.toggleMenu()
 293         return false
 294       }, undefined, $localize`Toggle the left menu`),
 295
 296       new Hotkey('g o', (event: KeyboardEvent): boolean => {
 297         this.router.navigate([ '/videos/overview' ])
 298         return false
 299       }, undefined, $localize`Go to the discover videos page`),
 300
 301       new Hotkey('g t', (event: KeyboardEvent): boolean => {
 302         this.router.navigate([ '/videos/trending' ])
 303         return false
 304       }, undefined, $localize`Go to the trending videos page`),
 305
 306       new Hotkey('g r', (event: KeyboardEvent): boolean => {
 307         this.router.navigate([ '/videos/recently-added' ])
 308         return false
 309       }, undefined, $localize`Go to the recently added videos page`),
 310
 311       new Hotkey('g l', (event: KeyboardEvent): boolean => {
 312         this.router.navigate([ '/videos/local' ])
 313         return false
 314       }, undefined, $localize`Go to the local videos page`),
 315
 316       new Hotkey('g u', (event: KeyboardEvent): boolean => {
 317         this.router.navigate([ '/videos/upload' ])
 318         return false
 319       }, undefined, $localize`Go to the videos upload page`)
 320     ])
 321   }
 322 }