client/src/app/app.component.ts

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