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, RouteConfigLoadEnd, RouteConfigLoadStart, 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 { NgbConfig, NgbModal } from '@ng-bootstrap/ng-bootstrap'
  15 import { LoadingBarService } from '@ngx-loading-bar/core'
  16 import { peertubeLocalStorage } from '@root-helpers/peertube-web-storage'
  17 import { getShortLocale, is18nPath } from '@shared/core-utils/i18n'
  18 import { BroadcastMessageLevel, ServerConfig, UserRole } from '@shared/models'
  19 import { MenuService } from './core/menu/menu.service'
  20 import { POP_STATE_MODAL_DISMISS } from './helpers'
  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 viewportScroller: ViewportScroller,
  44     private router: Router,
  45     private authService: AuthService,
  46     private serverService: ServerService,
  47     private pluginService: PluginService,
  48     private instanceService: InstanceService,
  49     private domSanitizer: DomSanitizer,
  50     private redirectService: RedirectService,
  51     private screenService: ScreenService,
  52     private hotkeysService: HotkeysService,
  53     private themeService: ThemeService,
  54     private hooks: HooksService,
  55     private location: PlatformLocation,
  56     private modalService: NgbModal,
  57     private markdownService: MarkdownService,
  58     private ngbConfig: NgbConfig,
  59     private loadingBar: LoadingBarService,
  60     public menu: MenuService
  61   ) {
  62     this.ngbConfig.animation = false
  63   }
  64
  65   get instanceName () {
  66     return this.serverConfig.instance.name
  67   }
  68
  69   goToDefaultRoute () {
  70     return this.router.navigateByUrl(this.redirectService.getDefaultRoute())
  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     this.document.documentElement.lang = getShortLocale(this.localeId)
 102   }
 103
 104   ngAfterViewInit () {
 105     this.pluginService.initializeCustomModal(this.customModal)
 106   }
 107
 108   getToggleTitle () {
 109     if (this.menu.isDisplayed()) return $localize`Close the left menu`
 110
 111     return $localize`Open the left menu`
 112   }
 113
 114   isUserLoggedIn () {
 115     return this.authService.isLoggedIn()
 116   }
 117
 118   hideBroadcastMessage () {
 119     peertubeLocalStorage.setItem(AppComponent.BROADCAST_MESSAGE_KEY, this.serverConfig.broadcastMessage.message)
 120
 121     this.broadcastMessage = null
 122     this.screenService.isBroadcastMessageDisplayed = false
 123   }
 124
 125   private initRouteEvents () {
 126     let resetScroll = true
 127     const eventsObs = this.router.events
 128
 129     const scrollEvent = eventsObs.pipe(filter((e: Event): e is Scroll => e instanceof Scroll))
 130
 131     // Handle anchors/restore position
 132     scrollEvent.subscribe(e => {
 133       // scrollToAnchor first to preserve anchor position when using history navigation
 134       if (e.anchor) {
 135         setTimeout(() => {
 136           this.viewportScroller.scrollToAnchor(e.anchor)
 137         })
 138
 139         return
 140       }
 141
 142       if (e.position) {
 143         return this.viewportScroller.scrollToPosition(e.position)
 144       }
 145
 146       if (resetScroll) {
 147         return this.viewportScroller.scrollToPosition([ 0, 0 ])
 148       }
 149     })
 150
 151     const navigationEndEvent = eventsObs.pipe(filter((e: Event): e is NavigationEnd => e instanceof NavigationEnd))
 152
 153     // When we add the a-state parameter, we don't want to alter the scroll
 154     navigationEndEvent.pipe(pairwise())
 155                       .subscribe(([ e1, e2 ]) => {
 156                         try {
 157                           resetScroll = false
 158
 159                           const previousUrl = new URL(window.location.origin + e1.urlAfterRedirects)
 160                           const nextUrl = new URL(window.location.origin + e2.urlAfterRedirects)
 161
 162                           if (previousUrl.pathname !== nextUrl.pathname) {
 163                             resetScroll = true
 164                             return
 165                           }
 166
 167                           const nextSearchParams = nextUrl.searchParams
 168                           nextSearchParams.delete('a-state')
 169
 170                           const previousSearchParams = previousUrl.searchParams
 171
 172                           nextSearchParams.sort()
 173                           previousSearchParams.sort()
 174
 175                           if (nextSearchParams.toString() !== previousSearchParams.toString()) {
 176                             resetScroll = true
 177                           }
 178                         } catch (e) {
 179                           console.error('Cannot parse URL to check next scroll.', e)
 180                           resetScroll = true
 181                         }
 182                       })
 183
 184     // Homepage redirection
 185     navigationEndEvent.pipe(
 186       map(() => window.location.pathname),
 187       filter(pathname => !pathname || pathname === '/' || is18nPath(pathname))
 188     ).subscribe(() => this.redirectService.redirectToHomepage(true))
 189
 190     // Plugin hooks
 191     navigationEndEvent.subscribe(e => {
 192       this.hooks.runAction('action:router.navigation-end', 'common', { path: e.url })
 193     })
 194
 195     // Automatically hide/display the menu
 196     eventsObs.pipe(
 197       filter((e: Event): e is GuardsCheckStart => e instanceof GuardsCheckStart),
 198       filter(() => this.screenService.isInSmallView() || this.screenService.isInTouchScreen())
 199     ).subscribe(() => this.menu.setMenuDisplay(false)) // User clicked on a link in the menu, change the page
 200
 201     // Handle lazy loaded module
 202     eventsObs.pipe(
 203       filter((e: Event): e is RouteConfigLoadStart => e instanceof RouteConfigLoadStart)
 204     ).subscribe(() => this.loadingBar.useRef().start())
 205
 206     eventsObs.pipe(
 207       filter((e: Event): e is RouteConfigLoadEnd => e instanceof RouteConfigLoadEnd)
 208     ).subscribe(() => this.loadingBar.useRef().complete())
 209   }
 210
 211   private injectBroadcastMessage () {
 212     concat(
 213       this.serverService.getConfig().pipe(first()),
 214       this.serverService.configReloaded
 215     ).subscribe(async config => {
 216       this.broadcastMessage = null
 217       this.screenService.isBroadcastMessageDisplayed = false
 218
 219       const messageConfig = config.broadcastMessage
 220
 221       if (messageConfig.enabled) {
 222         // Already dismissed this message?
 223         if (messageConfig.dismissable && localStorage.getItem(AppComponent.BROADCAST_MESSAGE_KEY) === messageConfig.message) {
 224           return
 225         }
 226
 227         const classes: { [id in BroadcastMessageLevel]: string } = {
 228           info: 'alert-info',
 229           warning: 'alert-warning',
 230           error: 'alert-danger'
 231         }
 232
 233         this.broadcastMessage = {
 234           message: await this.markdownService.completeMarkdownToHTML(messageConfig.message),
 235           dismissable: messageConfig.dismissable,
 236           class: classes[messageConfig.level]
 237         }
 238
 239         this.screenService.isBroadcastMessageDisplayed = true
 240       }
 241     })
 242   }
 243
 244   private injectJS () {
 245     // Inject JS
 246     this.serverService.getConfig()
 247         .subscribe(config => {
 248           if (config.instance.customizations.javascript) {
 249             try {
 250               // tslint:disable:no-eval
 251               eval(config.instance.customizations.javascript)
 252             } catch (err) {
 253               console.error('Cannot eval custom JavaScript.', err)
 254             }
 255           }
 256         })
 257   }
 258
 259   private injectCSS () {
 260     // Inject CSS if modified (admin config settings)
 261     concat(
 262       this.serverService.getConfig().pipe(first()),
 263       this.serverService.configReloaded
 264     ).subscribe(config => {
 265       const headStyle = document.querySelector('style.custom-css-style')
 266       if (headStyle) headStyle.parentNode.removeChild(headStyle)
 267
 268       // We test customCSS if the admin removed the css
 269       if (this.customCSS || config.instance.customizations.css) {
 270         const styleTag = '<style>' + config.instance.customizations.css + '</style>'
 271         this.customCSS = this.domSanitizer.bypassSecurityTrustHtml(styleTag)
 272       }
 273     })
 274   }
 275
 276   private async loadPlugins () {
 277     this.pluginService.initializePlugins()
 278
 279     this.hooks.runAction('action:application.init', 'common')
 280   }
 281
 282   private async openModalsIfNeeded () {
 283     this.authService.userInformationLoaded
 284         .pipe(
 285           map(() => this.authService.getUser()),
 286           filter(user => user.role === UserRole.ADMINISTRATOR)
 287         ).subscribe(user => setTimeout(() => this._openAdminModalsIfNeeded(user))) // setTimeout because of ngIf in template
 288   }
 289
 290   private async _openAdminModalsIfNeeded (user: User) {
 291     if (user.noWelcomeModal !== true) return this.welcomeModal.show()
 292
 293     if (user.noInstanceConfigWarningModal === true || !this.serverConfig.signup.allowed) return
 294
 295     this.instanceService.getAbout()
 296       .subscribe(about => {
 297         if (
 298           this.serverConfig.instance.name.toLowerCase() === 'peertube' ||
 299           !about.instance.terms ||
 300           !about.instance.administrator ||
 301           !about.instance.maintenanceLifetime
 302         ) {
 303           this.instanceConfigWarningModal.show(about)
 304         }
 305       })
 306   }
 307
 308   private initHotkeys () {
 309     this.hotkeysService.add([
 310       new Hotkey(['/', 's'], (event: KeyboardEvent): boolean => {
 311         document.getElementById('search-video').focus()
 312         return false
 313       }, undefined, $localize`Focus the search bar`),
 314
 315       new Hotkey('b', (event: KeyboardEvent): boolean => {
 316         this.menu.toggleMenu()
 317         return false
 318       }, undefined, $localize`Toggle the left menu`),
 319
 320       new Hotkey('g o', (event: KeyboardEvent): boolean => {
 321         this.router.navigate([ '/videos/overview' ])
 322         return false
 323       }, undefined, $localize`Go to the discover videos page`),
 324
 325       new Hotkey('g t', (event: KeyboardEvent): boolean => {
 326         this.router.navigate([ '/videos/trending' ])
 327         return false
 328       }, undefined, $localize`Go to the trending videos page`),
 329
 330       new Hotkey('g r', (event: KeyboardEvent): boolean => {
 331         this.router.navigate([ '/videos/recently-added' ])
 332         return false
 333       }, undefined, $localize`Go to the recently added videos page`),
 334
 335       new Hotkey('g l', (event: KeyboardEvent): boolean => {
 336         this.router.navigate([ '/videos/local' ])
 337         return false
 338       }, undefined, $localize`Go to the local videos page`),
 339
 340       new Hotkey('g u', (event: KeyboardEvent): boolean => {
 341         this.router.navigate([ '/videos/upload' ])
 342         return false
 343       }, undefined, $localize`Go to the videos upload page`)
 344     ])
 345   }
 346 }