client/src/app/app.component.ts

   1 import { Component, OnInit, ViewChild, AfterViewInit, Inject } 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     private i18n: I18n,
  47     private viewportScroller: ViewportScroller,
  48     private router: Router,
  49     private authService: AuthService,
  50     private serverService: ServerService,
  51     private pluginService: PluginService,
  52     private instanceService: InstanceService,
  53     private domSanitizer: DomSanitizer,
  54     private redirectService: RedirectService,
  55     private screenService: ScreenService,
  56     private hotkeysService: HotkeysService,
  57     private themeService: ThemeService,
  58     private hooks: HooksService,
  59     private location: PlatformLocation,
  60     private modalService: NgbModal,
  61     private markdownService: MarkdownService,
  62     public menu: MenuService
  63   ) { }
  64
  65   get instanceName () {
  66     return this.serverConfig.instance.name
  67   }
  68
  69   get defaultRoute () {
  70     return RedirectService.DEFAULT_ROUTE
  71   }
  72
  73   ngOnInit () {
  74     document.getElementById('incompatible-browser').className += ' browser-ok'
  75
  76     this.serverConfig = this.serverService.getTmpConfig()
  77     this.serverService.getConfig()
  78         .subscribe(config => this.serverConfig = config)
  79
  80     this.loadPlugins()
  81     this.themeService.initialize()
  82
  83     this.authService.loadClientCredentials()
  84
  85     if (this.isUserLoggedIn()) {
  86       // The service will automatically redirect to the login page if the token is not valid anymore
  87       this.authService.refreshUserInformation()
  88     }
  89
  90     this.initRouteEvents()
  91     this.injectJS()
  92     this.injectCSS()
  93     this.injectBroadcastMessage()
  94
  95     this.initHotkeys()
  96
  97     this.location.onPopState(() => this.modalService.dismissAll(POP_STATE_MODAL_DISMISS))
  98
  99     this.openModalsIfNeeded()
 100   }
 101
 102   ngAfterViewInit () {
 103     this.pluginService.initializeCustomModal(this.customModal)
 104   }
 105
 106   isUserLoggedIn () {
 107     return this.authService.isLoggedIn()
 108   }
 109
 110   hideBroadcastMessage () {
 111     peertubeLocalStorage.setItem(AppComponent.BROADCAST_MESSAGE_KEY, this.serverConfig.broadcastMessage.message)
 112
 113     this.broadcastMessage = null
 114   }
 115
 116   private initRouteEvents () {
 117     let resetScroll = true
 118     const eventsObs = this.router.events
 119
 120     const scrollEvent = eventsObs.pipe(filter((e: Event): e is Scroll => e instanceof Scroll))
 121
 122     scrollEvent.subscribe(e => {
 123       if (e.position) {
 124         return this.viewportScroller.scrollToPosition(e.position)
 125       }
 126
 127       if (e.anchor) {
 128         return this.viewportScroller.scrollToAnchor(e.anchor)
 129       }
 130
 131       if (resetScroll) {
 132         return this.viewportScroller.scrollToPosition([ 0, 0 ])
 133       }
 134     })
 135
 136     const navigationEndEvent = eventsObs.pipe(filter((e: Event): e is NavigationEnd => e instanceof NavigationEnd))
 137
 138     // When we add the a-state parameter, we don't want to alter the scroll
 139     navigationEndEvent.pipe(pairwise())
 140                       .subscribe(([ e1, e2 ]) => {
 141                         try {
 142                           resetScroll = false
 143
 144                           const previousUrl = new URL(window.location.origin + e1.urlAfterRedirects)
 145                           const nextUrl = new URL(window.location.origin + e2.urlAfterRedirects)
 146
 147                           if (previousUrl.pathname !== nextUrl.pathname) {
 148                             resetScroll = true
 149                             return
 150                           }
 151
 152                           const nextSearchParams = nextUrl.searchParams
 153                           nextSearchParams.delete('a-state')
 154
 155                           const previousSearchParams = previousUrl.searchParams
 156
 157                           nextSearchParams.sort()
 158                           previousSearchParams.sort()
 159
 160                           if (nextSearchParams.toString() !== previousSearchParams.toString()) {
 161                             resetScroll = true
 162                           }
 163                         } catch (e) {
 164                           console.error('Cannot parse URL to check next scroll.', e)
 165                           resetScroll = true
 166                         }
 167                       })
 168
 169     navigationEndEvent.pipe(
 170       map(() => window.location.pathname),
 171       filter(pathname => !pathname || pathname === '/' || is18nPath(pathname))
 172     ).subscribe(() => this.redirectService.redirectToHomepage(true))
 173
 174     navigationEndEvent.pipe(
 175       map(() => window.location.pathname),
 176     ).subscribe(pathname => {
 177       if (is18nPath(pathname)) {
 178         this.document.documentElement.lang = getShortLocale(pathname.split('/')[1])
 179       } else {
 180         this.document.documentElement.lang = 'en'
 181       }
 182     })
 183
 184     navigationEndEvent.subscribe(e => {
 185       this.hooks.runAction('action:router.navigation-end', 'common', { path: e.url })
 186     })
 187
 188     eventsObs.pipe(
 189       filter((e: Event): e is GuardsCheckStart => e instanceof GuardsCheckStart),
 190       filter(() => this.screenService.isInSmallView())
 191     ).subscribe(() => this.menu.isMenuDisplayed = false) // User clicked on a link in the menu, change the page
 192   }
 193
 194   private injectBroadcastMessage () {
 195     concat(
 196       this.serverService.getConfig().pipe(first()),
 197       this.serverService.configReloaded
 198     ).subscribe(async config => {
 199       this.broadcastMessage = null
 200
 201       const messageConfig = config.broadcastMessage
 202
 203       if (messageConfig.enabled) {
 204         // Already dismissed this message?
 205         if (messageConfig.dismissable && localStorage.getItem(AppComponent.BROADCAST_MESSAGE_KEY) === messageConfig.message) {
 206           return
 207         }
 208
 209         const classes: { [id in BroadcastMessageLevel]: string } = {
 210           info: 'alert-info',
 211           warning: 'alert-warning',
 212           error: 'alert-danger'
 213         }
 214
 215         this.broadcastMessage = {
 216           message: await this.markdownService.completeMarkdownToHTML(messageConfig.message),
 217           dismissable: messageConfig.dismissable,
 218           class: classes[messageConfig.level]
 219         }
 220       }
 221     })
 222   }
 223
 224   private injectJS () {
 225     // Inject JS
 226     this.serverService.getConfig()
 227         .subscribe(config => {
 228           if (config.instance.customizations.javascript) {
 229             try {
 230               // tslint:disable:no-eval
 231               eval(config.instance.customizations.javascript)
 232             } catch (err) {
 233               console.error('Cannot eval custom JavaScript.', err)
 234             }
 235           }
 236         })
 237   }
 238
 239   private injectCSS () {
 240     // Inject CSS if modified (admin config settings)
 241     concat(
 242       this.serverService.getConfig().pipe(first()),
 243       this.serverService.configReloaded
 244     ).subscribe(config => {
 245       const headStyle = document.querySelector('style.custom-css-style')
 246       if (headStyle) headStyle.parentNode.removeChild(headStyle)
 247
 248       // We test customCSS if the admin removed the css
 249       if (this.customCSS || config.instance.customizations.css) {
 250         const styleTag = '<style>' + config.instance.customizations.css + '</style>'
 251         this.customCSS = this.domSanitizer.bypassSecurityTrustHtml(styleTag)
 252       }
 253     })
 254   }
 255
 256   private async loadPlugins () {
 257     this.pluginService.initializePlugins()
 258
 259     this.hooks.runAction('action:application.init', 'common')
 260   }
 261
 262   private async openModalsIfNeeded () {
 263     this.authService.userInformationLoaded
 264         .pipe(
 265           map(() => this.authService.getUser()),
 266           filter(user => user.role === UserRole.ADMINISTRATOR)
 267         ).subscribe(user => setTimeout(() => this._openAdminModalsIfNeeded(user))) // setTimeout because of ngIf in template
 268   }
 269
 270   private async _openAdminModalsIfNeeded (user: User) {
 271     if (user.noWelcomeModal !== true) return this.welcomeModal.show()
 272
 273     if (user.noInstanceConfigWarningModal === true || !this.serverConfig.signup.allowed) return
 274
 275     this.instanceService.getAbout()
 276       .subscribe(about => {
 277         if (
 278           this.serverConfig.instance.name.toLowerCase() === 'peertube' ||
 279           !about.instance.terms ||
 280           !about.instance.administrator ||
 281           !about.instance.maintenanceLifetime
 282         ) {
 283           this.instanceConfigWarningModal.show(about)
 284         }
 285       })
 286   }
 287
 288   private initHotkeys () {
 289     this.hotkeysService.add([
 290       new Hotkey(['/', 's'], (event: KeyboardEvent): boolean => {
 291         document.getElementById('search-video').focus()
 292         return false
 293       }, undefined, this.i18n('Focus the search bar')),
 294
 295       new Hotkey('b', (event: KeyboardEvent): boolean => {
 296         this.menu.toggleMenu()
 297         return false
 298       }, undefined, this.i18n('Toggle the left menu')),
 299
 300       new Hotkey('g o', (event: KeyboardEvent): boolean => {
 301         this.router.navigate([ '/videos/overview' ])
 302         return false
 303       }, undefined, this.i18n('Go to the discover videos page')),
 304
 305       new Hotkey('g t', (event: KeyboardEvent): boolean => {
 306         this.router.navigate([ '/videos/trending' ])
 307         return false
 308       }, undefined, this.i18n('Go to the trending videos page')),
 309
 310       new Hotkey('g r', (event: KeyboardEvent): boolean => {
 311         this.router.navigate([ '/videos/recently-added' ])
 312         return false
 313       }, undefined, this.i18n('Go to the recently added videos page')),
 314
 315       new Hotkey('g l', (event: KeyboardEvent): boolean => {
 316         this.router.navigate([ '/videos/local' ])
 317         return false
 318       }, undefined, this.i18n('Go to the local videos page')),
 319
 320       new Hotkey('g u', (event: KeyboardEvent): boolean => {
 321         this.router.navigate([ '/videos/upload' ])
 322         return false
 323       }, undefined, this.i18n('Go to the videos upload page'))
 324     ])
 325   }
 326 }