client/src/app/app.component.ts

   1 import { Component, OnInit, ViewChild, AfterViewInit } 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 } from '../../../shared/models/i18n'
   6 import { ScreenService } from '@app/shared/misc/screen.service'
   7 import { filter, map, pairwise } from 'rxjs/operators'
   8 import { Hotkey, HotkeysService } from 'angular2-hotkeys'
   9 import { I18n } from '@ngx-translate/i18n-polyfill'
  10 import { PlatformLocation, ViewportScroller } 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
  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   @ViewChild('welcomeModal') welcomeModal: WelcomeModalComponent
  30   @ViewChild('instanceConfigWarningModal') instanceConfigWarningModal: InstanceConfigWarningModalComponent
  31   @ViewChild('customModal') customModal: CustomModalComponent
  32
  33   customCSS: SafeHtml
  34
  35   private serverConfig: ServerConfig
  36
  37   constructor (
  38     private i18n: I18n,
  39     private viewportScroller: ViewportScroller,
  40     private router: Router,
  41     private authService: AuthService,
  42     private serverService: ServerService,
  43     private pluginService: PluginService,
  44     private instanceService: InstanceService,
  45     private domSanitizer: DomSanitizer,
  46     private redirectService: RedirectService,
  47     private screenService: ScreenService,
  48     private hotkeysService: HotkeysService,
  49     private themeService: ThemeService,
  50     private hooks: HooksService,
  51     private location: PlatformLocation,
  52     private modalService: NgbModal,
  53     public menu: MenuService
  54   ) { }
  55
  56   get instanceName () {
  57     return this.serverConfig.instance.name
  58   }
  59
  60   get defaultRoute () {
  61     return RedirectService.DEFAULT_ROUTE
  62   }
  63
  64   ngOnInit () {
  65     document.getElementById('incompatible-browser').className += ' browser-ok'
  66
  67     this.serverConfig = this.serverService.getTmpConfig()
  68     this.serverService.getConfig()
  69         .subscribe(config => this.serverConfig = config)
  70
  71     this.loadPlugins()
  72     this.themeService.initialize()
  73
  74     this.authService.loadClientCredentials()
  75
  76     if (this.isUserLoggedIn()) {
  77       // The service will automatically redirect to the login page if the token is not valid anymore
  78       this.authService.refreshUserInformation()
  79     }
  80
  81     this.initRouteEvents()
  82     this.injectJS()
  83     this.injectCSS()
  84
  85     this.initHotkeys()
  86
  87     this.location.onPopState(() => this.modalService.dismissAll(POP_STATE_MODAL_DISMISS))
  88
  89     this.openModalsIfNeeded()
  90   }
  91
  92   ngAfterViewInit () {
  93     this.pluginService.initializeCustomModal(this.customModal)
  94   }
  95
  96   isUserLoggedIn () {
  97     return this.authService.isLoggedIn()
  98   }
  99
 100   private initRouteEvents () {
 101     let resetScroll = true
 102     const eventsObs = this.router.events
 103
 104     const scrollEvent = eventsObs.pipe(filter((e: Event): e is Scroll => e instanceof Scroll))
 105
 106     scrollEvent.subscribe(e => {
 107       if (e.position) {
 108         return this.viewportScroller.scrollToPosition(e.position)
 109       }
 110
 111       if (e.anchor) {
 112         return this.viewportScroller.scrollToAnchor(e.anchor)
 113       }
 114
 115       if (resetScroll) {
 116         return this.viewportScroller.scrollToPosition([ 0, 0 ])
 117       }
 118     })
 119
 120     const navigationEndEvent = eventsObs.pipe(filter((e: Event): e is NavigationEnd => e instanceof NavigationEnd))
 121
 122     // When we add the a-state parameter, we don't want to alter the scroll
 123     navigationEndEvent.pipe(pairwise())
 124                       .subscribe(([ e1, e2 ]) => {
 125                         try {
 126                           resetScroll = false
 127
 128                           const previousUrl = new URL(window.location.origin + e1.urlAfterRedirects)
 129                           const nextUrl = new URL(window.location.origin + e2.urlAfterRedirects)
 130
 131                           if (previousUrl.pathname !== nextUrl.pathname) {
 132                             resetScroll = true
 133                             return
 134                           }
 135
 136                           const nextSearchParams = nextUrl.searchParams
 137                           nextSearchParams.delete('a-state')
 138
 139                           const previousSearchParams = previousUrl.searchParams
 140
 141                           nextSearchParams.sort()
 142                           previousSearchParams.sort()
 143
 144                           if (nextSearchParams.toString() !== previousSearchParams.toString()) {
 145                             resetScroll = true
 146                           }
 147                         } catch (e) {
 148                           console.error('Cannot parse URL to check next scroll.', e)
 149                           resetScroll = true
 150                         }
 151                       })
 152
 153     navigationEndEvent.pipe(
 154       map(() => window.location.pathname),
 155       filter(pathname => !pathname || pathname === '/' || is18nPath(pathname))
 156     ).subscribe(() => this.redirectService.redirectToHomepage(true))
 157
 158     navigationEndEvent.subscribe(e => {
 159       this.hooks.runAction('action:router.navigation-end', 'common', { path: e.url })
 160     })
 161
 162     eventsObs.pipe(
 163       filter((e: Event): e is GuardsCheckStart => e instanceof GuardsCheckStart),
 164       filter(() => this.screenService.isInSmallView())
 165     ).subscribe(() => this.menu.isMenuDisplayed = false) // User clicked on a link in the menu, change the page
 166   }
 167
 168   private injectJS () {
 169     // Inject JS
 170     this.serverService.getConfig()
 171         .subscribe(config => {
 172           if (config.instance.customizations.javascript) {
 173             try {
 174               // tslint:disable:no-eval
 175               eval(config.instance.customizations.javascript)
 176             } catch (err) {
 177               console.error('Cannot eval custom JavaScript.', err)
 178             }
 179           }
 180         })
 181   }
 182
 183   private injectCSS () {
 184     // Inject CSS if modified (admin config settings)
 185     this.serverService.configReloaded
 186         .subscribe(() => {
 187           const headStyle = document.querySelector('style.custom-css-style')
 188           if (headStyle) headStyle.parentNode.removeChild(headStyle)
 189
 190           // We test customCSS if the admin removed the css
 191           if (this.customCSS || this.serverConfig.instance.customizations.css) {
 192             const styleTag = '<style>' + this.serverConfig.instance.customizations.css + '</style>'
 193             this.customCSS = this.domSanitizer.bypassSecurityTrustHtml(styleTag)
 194           }
 195         })
 196   }
 197
 198   private async loadPlugins () {
 199     this.pluginService.initializePlugins()
 200
 201     this.hooks.runAction('action:application.init', 'common')
 202   }
 203
 204   private async openModalsIfNeeded () {
 205     this.authService.userInformationLoaded
 206         .pipe(
 207           map(() => this.authService.getUser()),
 208           filter(user => user.role === UserRole.ADMINISTRATOR)
 209         ).subscribe(user => setTimeout(() => this._openAdminModalsIfNeeded(user))) // setTimeout because of ngIf in template
 210   }
 211
 212   private async _openAdminModalsIfNeeded (user: User) {
 213     if (user.noWelcomeModal !== true) return this.welcomeModal.show()
 214
 215     if (user.noInstanceConfigWarningModal === true || !this.serverConfig.signup.allowed) return
 216
 217     this.instanceService.getAbout()
 218       .subscribe(about => {
 219         if (
 220           this.serverConfig.instance.name.toLowerCase() === 'peertube' ||
 221           !about.instance.terms ||
 222           !about.instance.administrator ||
 223           !about.instance.maintenanceLifetime
 224         ) {
 225           this.instanceConfigWarningModal.show(about)
 226         }
 227       })
 228   }
 229
 230   private initHotkeys () {
 231     this.hotkeysService.add([
 232       new Hotkey(['/', 's'], (event: KeyboardEvent): boolean => {
 233         document.getElementById('search-video').focus()
 234         return false
 235       }, undefined, this.i18n('Focus the search bar')),
 236
 237       new Hotkey('b', (event: KeyboardEvent): boolean => {
 238         this.menu.toggleMenu()
 239         return false
 240       }, undefined, this.i18n('Toggle the left menu')),
 241
 242       new Hotkey('g o', (event: KeyboardEvent): boolean => {
 243         this.router.navigate([ '/videos/overview' ])
 244         return false
 245       }, undefined, this.i18n('Go to the discover videos page')),
 246
 247       new Hotkey('g t', (event: KeyboardEvent): boolean => {
 248         this.router.navigate([ '/videos/trending' ])
 249         return false
 250       }, undefined, this.i18n('Go to the trending videos page')),
 251
 252       new Hotkey('g r', (event: KeyboardEvent): boolean => {
 253         this.router.navigate([ '/videos/recently-added' ])
 254         return false
 255       }, undefined, this.i18n('Go to the recently added videos page')),
 256
 257       new Hotkey('g l', (event: KeyboardEvent): boolean => {
 258         this.router.navigate([ '/videos/local' ])
 259         return false
 260       }, undefined, this.i18n('Go to the local videos page')),
 261
 262       new Hotkey('g u', (event: KeyboardEvent): boolean => {
 263         this.router.navigate([ '/videos/upload' ])
 264         return false
 265       }, undefined, this.i18n('Go to the videos upload page'))
 266     ])
 267   }
 268 }