client/src/app/app.component.ts

   1 import { Component, OnInit, ViewChild } 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 { debounceTime, filter, first, map, pairwise, skip, switchMap } from 'rxjs/operators'
   8 import { Hotkey, HotkeysService } from 'angular2-hotkeys'
   9 import { I18n } from '@ngx-translate/i18n-polyfill'
  10 import { fromEvent } from 'rxjs'
  11 import { PlatformLocation, ViewportScroller } from '@angular/common'
  12 import { PluginService } from '@app/core/plugins/plugin.service'
  13 import { HooksService } from '@app/core/plugins/hooks.service'
  14 import { NgbModal } from '@ng-bootstrap/ng-bootstrap'
  15 import { POP_STATE_MODAL_DISMISS } from '@app/shared/misc/constants'
  16 import { WelcomeModalComponent } from '@app/modal/welcome-modal.component'
  17 import { InstanceConfigWarningModalComponent } from '@app/modal/instance-config-warning-modal.component'
  18 import { UserRole } from '@shared/models'
  19 import { User } from '@app/shared'
  20 import { InstanceService } from '@app/shared/instance/instance.service'
  21
  22 @Component({
  23   selector: 'my-app',
  24   templateUrl: './app.component.html',
  25   styleUrls: [ './app.component.scss' ]
  26 })
  27 export class AppComponent implements OnInit {
  28   @ViewChild('welcomeModal', { static: false }) welcomeModal: WelcomeModalComponent
  29   @ViewChild('instanceConfigWarningModal', { static: false }) instanceConfigWarningModal: InstanceConfigWarningModalComponent
  30
  31   isMenuDisplayed = true
  32   isMenuChangedByUser = false
  33
  34   customCSS: SafeHtml
  35
  36   constructor (
  37     private i18n: I18n,
  38     private viewportScroller: ViewportScroller,
  39     private router: Router,
  40     private authService: AuthService,
  41     private serverService: ServerService,
  42     private pluginService: PluginService,
  43     private instanceService: InstanceService,
  44     private domSanitizer: DomSanitizer,
  45     private redirectService: RedirectService,
  46     private screenService: ScreenService,
  47     private hotkeysService: HotkeysService,
  48     private themeService: ThemeService,
  49     private hooks: HooksService,
  50     private location: PlatformLocation,
  51     private modalService: NgbModal
  52   ) { }
  53
  54   get instanceName () {
  55     return this.serverService.getConfig().instance.name
  56   }
  57
  58   get defaultRoute () {
  59     return RedirectService.DEFAULT_ROUTE
  60   }
  61
  62   ngOnInit () {
  63     document.getElementById('incompatible-browser').className += ' browser-ok'
  64
  65     this.loadPlugins()
  66     this.themeService.initialize()
  67
  68     this.authService.loadClientCredentials()
  69
  70     if (this.isUserLoggedIn()) {
  71       // The service will automatically redirect to the login page if the token is not valid anymore
  72       this.authService.refreshUserInformation()
  73     }
  74
  75     // Load custom data from server
  76     this.serverService.loadConfig()
  77     this.serverService.loadVideoCategories()
  78     this.serverService.loadVideoLanguages()
  79     this.serverService.loadVideoLicences()
  80     this.serverService.loadVideoPrivacies()
  81     this.serverService.loadVideoPlaylistPrivacies()
  82
  83     // Do not display menu on small screens
  84     if (this.screenService.isInSmallView()) {
  85       this.isMenuDisplayed = false
  86     }
  87
  88     this.initRouteEvents()
  89     this.injectJS()
  90     this.injectCSS()
  91
  92     this.initHotkeys()
  93
  94     fromEvent(window, 'resize')
  95       .pipe(debounceTime(200))
  96       .subscribe(() => this.onResize())
  97
  98     this.location.onPopState(() => this.modalService.dismissAll(POP_STATE_MODAL_DISMISS))
  99
 100     this.openModalsIfNeeded()
 101   }
 102
 103   isUserLoggedIn () {
 104     return this.authService.isLoggedIn()
 105   }
 106
 107   toggleMenu () {
 108     this.isMenuDisplayed = !this.isMenuDisplayed
 109     this.isMenuChangedByUser = true
 110   }
 111
 112   onResize () {
 113     this.isMenuDisplayed = window.innerWidth >= 800 && !this.isMenuChangedByUser
 114   }
 115
 116   getServerVersionAndCommit () {
 117     return this.serverService.getServerVersionAndCommit()
 118   }
 119
 120   private initRouteEvents () {
 121     let resetScroll = true
 122     const eventsObs = this.router.events
 123
 124     const scrollEvent = eventsObs.pipe(filter((e: Event): e is Scroll => e instanceof Scroll))
 125
 126     scrollEvent.subscribe(e => {
 127       if (e.position) {
 128         return this.viewportScroller.scrollToPosition(e.position)
 129       }
 130
 131       if (e.anchor) {
 132         return this.viewportScroller.scrollToAnchor(e.anchor)
 133       }
 134
 135       if (resetScroll) {
 136         return this.viewportScroller.scrollToPosition([ 0, 0 ])
 137       }
 138     })
 139
 140     const navigationEndEvent = eventsObs.pipe(filter((e: Event): e is NavigationEnd => e instanceof NavigationEnd))
 141
 142     // When we add the a-state parameter, we don't want to alter the scroll
 143     navigationEndEvent.pipe(pairwise())
 144                       .subscribe(([ e1, e2 ]) => {
 145                         try {
 146                           resetScroll = false
 147
 148                           const previousUrl = new URL(window.location.origin + e1.urlAfterRedirects)
 149                           const nextUrl = new URL(window.location.origin + e2.urlAfterRedirects)
 150
 151                           if (previousUrl.pathname !== nextUrl.pathname) {
 152                             resetScroll = true
 153                             return
 154                           }
 155
 156                           const nextSearchParams = nextUrl.searchParams
 157                           nextSearchParams.delete('a-state')
 158
 159                           const previousSearchParams = previousUrl.searchParams
 160
 161                           nextSearchParams.sort()
 162                           previousSearchParams.sort()
 163
 164                           if (nextSearchParams.toString() !== previousSearchParams.toString()) {
 165                             resetScroll = true
 166                           }
 167                         } catch (e) {
 168                           console.error('Cannot parse URL to check next scroll.', e)
 169                           resetScroll = true
 170                         }
 171                       })
 172
 173     navigationEndEvent.pipe(
 174       map(() => window.location.pathname),
 175       filter(pathname => !pathname || pathname === '/' || is18nPath(pathname))
 176     ).subscribe(() => this.redirectService.redirectToHomepage(true))
 177
 178     navigationEndEvent.subscribe(e => {
 179       this.hooks.runAction('action:router.navigation-end', 'common', { path: e.url })
 180     })
 181
 182     eventsObs.pipe(
 183       filter((e: Event): e is GuardsCheckStart => e instanceof GuardsCheckStart),
 184       filter(() => this.screenService.isInSmallView())
 185     ).subscribe(() => this.isMenuDisplayed = false) // User clicked on a link in the menu, change the page
 186   }
 187
 188   private injectJS () {
 189     // Inject JS
 190     this.serverService.configLoaded
 191         .subscribe(() => {
 192           const config = this.serverService.getConfig()
 193
 194           if (config.instance.customizations.javascript) {
 195             try {
 196               // tslint:disable:no-eval
 197               eval(config.instance.customizations.javascript)
 198             } catch (err) {
 199               console.error('Cannot eval custom JavaScript.', err)
 200             }
 201           }
 202         })
 203   }
 204
 205   private injectCSS () {
 206     // Inject CSS if modified (admin config settings)
 207     this.serverService.configLoaded
 208         .pipe(skip(1)) // We only want to subscribe to reloads, because the CSS is already injected by the server
 209         .subscribe(() => {
 210           const headStyle = document.querySelector('style.custom-css-style')
 211           if (headStyle) headStyle.parentNode.removeChild(headStyle)
 212
 213           const config = this.serverService.getConfig()
 214
 215           // We test customCSS if the admin removed the css
 216           if (this.customCSS || config.instance.customizations.css) {
 217             const styleTag = '<style>' + config.instance.customizations.css + '</style>'
 218             this.customCSS = this.domSanitizer.bypassSecurityTrustHtml(styleTag)
 219           }
 220         })
 221   }
 222
 223   private async loadPlugins () {
 224     this.pluginService.initializePlugins()
 225
 226     this.hooks.runAction('action:application.init', 'common')
 227   }
 228
 229   private async openModalsIfNeeded () {
 230     this.serverService.configLoaded
 231         .pipe(
 232           first(),
 233           switchMap(() => this.authService.userInformationLoaded),
 234           map(() => this.authService.getUser()),
 235           filter(user => user.role === UserRole.ADMINISTRATOR)
 236         ).subscribe(user => setTimeout(() => this.openAdminModals(user))) // setTimeout because of ngIf in template
 237   }
 238
 239   private async openAdminModals (user: User) {
 240     if (user.noWelcomeModal !== true) return this.welcomeModal.show()
 241
 242     const config = this.serverService.getConfig()
 243     if (user.noInstanceConfigWarningModal === true || !config.signup.allowed) return
 244
 245     this.instanceService.getAbout()
 246       .subscribe(about => {
 247         if (
 248           config.instance.name.toLowerCase() === 'peertube' ||
 249           !about.instance.terms ||
 250           !about.instance.administrator ||
 251           !about.instance.maintenanceLifetime
 252         ) {
 253           this.instanceConfigWarningModal.show(about)
 254         }
 255       })
 256   }
 257
 258   private initHotkeys () {
 259     this.hotkeysService.add([
 260       new Hotkey(['/', 's'], (event: KeyboardEvent): boolean => {
 261         document.getElementById('search-video').focus()
 262         return false
 263       }, undefined, this.i18n('Focus the search bar')),
 264
 265       new Hotkey('b', (event: KeyboardEvent): boolean => {
 266         this.toggleMenu()
 267         return false
 268       }, undefined, this.i18n('Toggle the left menu')),
 269
 270       new Hotkey('g o', (event: KeyboardEvent): boolean => {
 271         this.router.navigate([ '/videos/overview' ])
 272         return false
 273       }, undefined, this.i18n('Go to the discover videos page')),
 274
 275       new Hotkey('g t', (event: KeyboardEvent): boolean => {
 276         this.router.navigate([ '/videos/trending' ])
 277         return false
 278       }, undefined, this.i18n('Go to the trending videos page')),
 279
 280       new Hotkey('g r', (event: KeyboardEvent): boolean => {
 281         this.router.navigate([ '/videos/recently-added' ])
 282         return false
 283       }, undefined, this.i18n('Go to the recently added videos page')),
 284
 285       new Hotkey('g l', (event: KeyboardEvent): boolean => {
 286         this.router.navigate([ '/videos/local' ])
 287         return false
 288       }, undefined, this.i18n('Go to the local videos page')),
 289
 290       new Hotkey('g u', (event: KeyboardEvent): boolean => {
 291         this.router.navigate([ '/videos/upload' ])
 292         return false
 293       }, undefined, this.i18n('Go to the videos upload page'))
 294     ])
 295   }
 296 }