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, 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 serverVersion () {
  55     return this.serverService.getConfig().serverVersion
  56   }
  57
  58   get serverCommit () {
  59     const commit = this.serverService.getConfig().serverCommit || ''
  60     return (commit !== '') ? '...' + commit : commit
  61   }
  62
  63   get instanceName () {
  64     return this.serverService.getConfig().instance.name
  65   }
  66
  67   get defaultRoute () {
  68     return RedirectService.DEFAULT_ROUTE
  69   }
  70
  71   ngOnInit () {
  72     document.getElementById('incompatible-browser').className += ' browser-ok'
  73
  74     this.loadPlugins()
  75     this.themeService.initialize()
  76
  77     this.authService.loadClientCredentials()
  78
  79     if (this.isUserLoggedIn()) {
  80       // The service will automatically redirect to the login page if the token is not valid anymore
  81       this.authService.refreshUserInformation()
  82     }
  83
  84     // Load custom data from server
  85     this.serverService.loadConfig()
  86     this.serverService.loadVideoCategories()
  87     this.serverService.loadVideoLanguages()
  88     this.serverService.loadVideoLicences()
  89     this.serverService.loadVideoPrivacies()
  90     this.serverService.loadVideoPlaylistPrivacies()
  91
  92     // Do not display menu on small screens
  93     if (this.screenService.isInSmallView()) {
  94       this.isMenuDisplayed = false
  95     }
  96
  97     this.initRouteEvents()
  98     this.injectJS()
  99     this.injectCSS()
 100
 101     this.initHotkeys()
 102
 103     fromEvent(window, 'resize')
 104       .pipe(debounceTime(200))
 105       .subscribe(() => this.onResize())
 106
 107     this.location.onPopState(() => this.modalService.dismissAll(POP_STATE_MODAL_DISMISS))
 108
 109     this.openModalsIfNeeded()
 110   }
 111
 112   isUserLoggedIn () {
 113     return this.authService.isLoggedIn()
 114   }
 115
 116   toggleMenu () {
 117     this.isMenuDisplayed = !this.isMenuDisplayed
 118     this.isMenuChangedByUser = true
 119   }
 120
 121   onResize () {
 122     this.isMenuDisplayed = window.innerWidth >= 800 && !this.isMenuChangedByUser
 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     scrollEvent.subscribe(e => {
 132       if (e.position) {
 133         return this.viewportScroller.scrollToPosition(e.position)
 134       }
 135
 136       if (e.anchor) {
 137         return this.viewportScroller.scrollToAnchor(e.anchor)
 138       }
 139
 140       if (resetScroll) {
 141         return this.viewportScroller.scrollToPosition([ 0, 0 ])
 142       }
 143     })
 144
 145     const navigationEndEvent = eventsObs.pipe(filter((e: Event): e is NavigationEnd => e instanceof NavigationEnd))
 146
 147     // When we add the a-state parameter, we don't want to alter the scroll
 148     navigationEndEvent.pipe(pairwise())
 149                       .subscribe(([ e1, e2 ]) => {
 150                         try {
 151                           resetScroll = false
 152
 153                           const previousUrl = new URL(window.location.origin + e1.urlAfterRedirects)
 154                           const nextUrl = new URL(window.location.origin + e2.urlAfterRedirects)
 155
 156                           if (previousUrl.pathname !== nextUrl.pathname) {
 157                             resetScroll = true
 158                             return
 159                           }
 160
 161                           const nextSearchParams = nextUrl.searchParams
 162                           nextSearchParams.delete('a-state')
 163
 164                           const previousSearchParams = previousUrl.searchParams
 165
 166                           nextSearchParams.sort()
 167                           previousSearchParams.sort()
 168
 169                           if (nextSearchParams.toString() !== previousSearchParams.toString()) {
 170                             resetScroll = true
 171                           }
 172                         } catch (e) {
 173                           console.error('Cannot parse URL to check next scroll.', e)
 174                           resetScroll = true
 175                         }
 176                       })
 177
 178     navigationEndEvent.pipe(
 179       map(() => window.location.pathname),
 180       filter(pathname => !pathname || pathname === '/' || is18nPath(pathname))
 181     ).subscribe(() => this.redirectService.redirectToHomepage(true))
 182
 183     navigationEndEvent.subscribe(e => {
 184       this.hooks.runAction('action:router.navigation-end', 'common', { path: e.url })
 185     })
 186
 187     eventsObs.pipe(
 188       filter((e: Event): e is GuardsCheckStart => e instanceof GuardsCheckStart),
 189       filter(() => this.screenService.isInSmallView())
 190     ).subscribe(() => this.isMenuDisplayed = false) // User clicked on a link in the menu, change the page
 191   }
 192
 193   private injectJS () {
 194     // Inject JS
 195     this.serverService.configLoaded
 196         .subscribe(() => {
 197           const config = this.serverService.getConfig()
 198
 199           if (config.instance.customizations.javascript) {
 200             try {
 201               // tslint:disable:no-eval
 202               eval(config.instance.customizations.javascript)
 203             } catch (err) {
 204               console.error('Cannot eval custom JavaScript.', err)
 205             }
 206           }
 207         })
 208   }
 209
 210   private injectCSS () {
 211     // Inject CSS if modified (admin config settings)
 212     this.serverService.configLoaded
 213         .pipe(skip(1)) // We only want to subscribe to reloads, because the CSS is already injected by the server
 214         .subscribe(() => {
 215           const headStyle = document.querySelector('style.custom-css-style')
 216           if (headStyle) headStyle.parentNode.removeChild(headStyle)
 217
 218           const config = this.serverService.getConfig()
 219
 220           // We test customCSS if the admin removed the css
 221           if (this.customCSS || config.instance.customizations.css) {
 222             const styleTag = '<style>' + config.instance.customizations.css + '</style>'
 223             this.customCSS = this.domSanitizer.bypassSecurityTrustHtml(styleTag)
 224           }
 225         })
 226   }
 227
 228   private async loadPlugins () {
 229     this.pluginService.initializePlugins()
 230
 231     this.hooks.runAction('action:application.init', 'common')
 232   }
 233
 234   private async openModalsIfNeeded () {
 235     this.serverService.configLoaded
 236         .pipe(
 237           switchMap(() => this.authService.userInformationLoaded),
 238           map(() => this.authService.getUser()),
 239           filter(user => user.role === UserRole.ADMINISTRATOR)
 240         ).subscribe(user => setTimeout(() => this.openAdminModals(user))) // setTimeout because of ngIf in template
 241   }
 242
 243   private async openAdminModals (user: User) {
 244     if (user.noWelcomeModal !== true) return this.welcomeModal.show()
 245
 246     const config = this.serverService.getConfig()
 247     if (user.noInstanceConfigWarningModal === true || !config.signup.allowed) return
 248
 249     this.instanceService.getAbout()
 250       .subscribe(about => {
 251         if (
 252           config.instance.name.toLowerCase() === 'peertube' ||
 253           !about.instance.terms ||
 254           !about.instance.administrator ||
 255           !about.instance.maintenanceLifetime
 256         ) {
 257           this.instanceConfigWarningModal.show(about)
 258         }
 259       })
 260   }
 261
 262   private initHotkeys () {
 263     this.hotkeysService.add([
 264       new Hotkey(['/', 's'], (event: KeyboardEvent): boolean => {
 265         document.getElementById('search-video').focus()
 266         return false
 267       }, undefined, this.i18n('Focus the search bar')),
 268
 269       new Hotkey('b', (event: KeyboardEvent): boolean => {
 270         this.toggleMenu()
 271         return false
 272       }, undefined, this.i18n('Toggle the left menu')),
 273
 274       new Hotkey('g o', (event: KeyboardEvent): boolean => {
 275         this.router.navigate([ '/videos/overview' ])
 276         return false
 277       }, undefined, this.i18n('Go to the discover videos page')),
 278
 279       new Hotkey('g t', (event: KeyboardEvent): boolean => {
 280         this.router.navigate([ '/videos/trending' ])
 281         return false
 282       }, undefined, this.i18n('Go to the trending videos page')),
 283
 284       new Hotkey('g r', (event: KeyboardEvent): boolean => {
 285         this.router.navigate([ '/videos/recently-added' ])
 286         return false
 287       }, undefined, this.i18n('Go to the recently added videos page')),
 288
 289       new Hotkey('g l', (event: KeyboardEvent): boolean => {
 290         this.router.navigate([ '/videos/local' ])
 291         return false
 292       }, undefined, this.i18n('Go to the local videos page')),
 293
 294       new Hotkey('g u', (event: KeyboardEvent): boolean => {
 295         this.router.navigate([ '/videos/upload' ])
 296         return false
 297       }, undefined, this.i18n('Go to the videos upload page'))
 298     ])
 299   }
 300 }