client/src/app/app.component.ts

   1 import { Component, OnInit } 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 } 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 { ViewportScroller } from '@angular/common'
  12 import { PluginService } from '@app/core/plugins/plugin.service'
  13
  14 @Component({
  15   selector: 'my-app',
  16   templateUrl: './app.component.html',
  17   styleUrls: [ './app.component.scss' ]
  18 })
  19 export class AppComponent implements OnInit {
  20   isMenuDisplayed = true
  21   isMenuChangedByUser = false
  22
  23   customCSS: SafeHtml
  24
  25   constructor (
  26     private i18n: I18n,
  27     private viewportScroller: ViewportScroller,
  28     private router: Router,
  29     private authService: AuthService,
  30     private serverService: ServerService,
  31     private pluginService: PluginService,
  32     private domSanitizer: DomSanitizer,
  33     private redirectService: RedirectService,
  34     private screenService: ScreenService,
  35     private hotkeysService: HotkeysService,
  36     private themeService: ThemeService
  37   ) { }
  38
  39   get serverVersion () {
  40     return this.serverService.getConfig().serverVersion
  41   }
  42
  43   get serverCommit () {
  44     const commit = this.serverService.getConfig().serverCommit || ''
  45     return (commit !== '') ? '...' + commit : commit
  46   }
  47
  48   get instanceName () {
  49     return this.serverService.getConfig().instance.name
  50   }
  51
  52   get defaultRoute () {
  53     return RedirectService.DEFAULT_ROUTE
  54   }
  55
  56   ngOnInit () {
  57     document.getElementById('incompatible-browser').className += ' browser-ok'
  58
  59     this.authService.loadClientCredentials()
  60
  61     if (this.isUserLoggedIn()) {
  62       // The service will automatically redirect to the login page if the token is not valid anymore
  63       this.authService.refreshUserInformation()
  64     }
  65
  66     // Load custom data from server
  67     this.serverService.loadConfig()
  68     this.serverService.loadVideoCategories()
  69     this.serverService.loadVideoLanguages()
  70     this.serverService.loadVideoLicences()
  71     this.serverService.loadVideoPrivacies()
  72     this.serverService.loadVideoPlaylistPrivacies()
  73
  74     this.loadPlugins()
  75
  76     // Do not display menu on small screens
  77     if (this.screenService.isInSmallView()) {
  78       this.isMenuDisplayed = false
  79     }
  80
  81     this.initRouteEvents()
  82     this.injectJS()
  83     this.injectCSS()
  84
  85     this.initHotkeys()
  86
  87     fromEvent(window, 'resize')
  88       .pipe(debounceTime(200))
  89       .subscribe(() => this.onResize())
  90   }
  91
  92   isUserLoggedIn () {
  93     return this.authService.isLoggedIn()
  94   }
  95
  96   toggleMenu () {
  97     this.isMenuDisplayed = !this.isMenuDisplayed
  98     this.isMenuChangedByUser = true
  99   }
 100
 101   onResize () {
 102     this.isMenuDisplayed = window.innerWidth >= 800 && !this.isMenuChangedByUser
 103   }
 104
 105   private initRouteEvents () {
 106     let resetScroll = true
 107     const eventsObs = this.router.events
 108
 109     const scrollEvent = eventsObs.pipe(filter((e: Event): e is Scroll => e instanceof Scroll))
 110     const navigationEndEvent = eventsObs.pipe(filter((e: Event): e is NavigationEnd => e instanceof NavigationEnd))
 111
 112     scrollEvent.subscribe(e => {
 113       if (e.position) {
 114         return this.viewportScroller.scrollToPosition(e.position)
 115       }
 116
 117       if (e.anchor) {
 118         return this.viewportScroller.scrollToAnchor(e.anchor)
 119       }
 120
 121       if (resetScroll) {
 122         return this.viewportScroller.scrollToPosition([ 0, 0 ])
 123       }
 124     })
 125
 126     // When we add the a-state parameter, we don't want to alter the scroll
 127     navigationEndEvent.pipe(pairwise())
 128                       .subscribe(([ e1, e2 ]) => {
 129                         try {
 130                           resetScroll = false
 131
 132                           const previousUrl = new URL(window.location.origin + e1.urlAfterRedirects)
 133                           const nextUrl = new URL(window.location.origin + e2.urlAfterRedirects)
 134
 135                           if (previousUrl.pathname !== nextUrl.pathname) {
 136                             resetScroll = true
 137                             return
 138                           }
 139
 140                           const nextSearchParams = nextUrl.searchParams
 141                           nextSearchParams.delete('a-state')
 142
 143                           const previousSearchParams = previousUrl.searchParams
 144
 145                           nextSearchParams.sort()
 146                           previousSearchParams.sort()
 147
 148                           if (nextSearchParams.toString() !== previousSearchParams.toString()) {
 149                             resetScroll = true
 150                           }
 151                         } catch (e) {
 152                           console.error('Cannot parse URL to check next scroll.', e)
 153                           resetScroll = true
 154                         }
 155                       })
 156
 157     navigationEndEvent.pipe(
 158       map(() => window.location.pathname),
 159       filter(pathname => !pathname || pathname === '/' || is18nPath(pathname))
 160     ).subscribe(() => this.redirectService.redirectToHomepage(true))
 161
 162     eventsObs.pipe(
 163       filter((e: Event): e is GuardsCheckStart => e instanceof GuardsCheckStart),
 164       filter(() => this.screenService.isInSmallView())
 165     ).subscribe(() => this.isMenuDisplayed = false) // User clicked on a link in the menu, change the page
 166   }
 167
 168   private injectJS () {
 169     // Inject JS
 170     this.serverService.configLoaded
 171         .subscribe(() => {
 172           const config = this.serverService.getConfig()
 173
 174           if (config.instance.customizations.javascript) {
 175             try {
 176               // tslint:disable:no-eval
 177               eval(config.instance.customizations.javascript)
 178             } catch (err) {
 179               console.error('Cannot eval custom JavaScript.', err)
 180             }
 181           }
 182         })
 183   }
 184
 185   private injectCSS () {
 186     // Inject CSS if modified (admin config settings)
 187     this.serverService.configLoaded
 188         .pipe(skip(1)) // We only want to subscribe to reloads, because the CSS is already injected by the server
 189         .subscribe(() => {
 190           const headStyle = document.querySelector('style.custom-css-style')
 191           if (headStyle) headStyle.parentNode.removeChild(headStyle)
 192
 193           const config = this.serverService.getConfig()
 194
 195           // We test customCSS if the admin removed the css
 196           if (this.customCSS || config.instance.customizations.css) {
 197             const styleTag = '<style>' + config.instance.customizations.css + '</style>'
 198             this.customCSS = this.domSanitizer.bypassSecurityTrustHtml(styleTag)
 199           }
 200         })
 201   }
 202
 203   private async loadPlugins () {
 204     this.pluginService.initializePlugins()
 205
 206     await this.pluginService.loadPluginsByScope('common')
 207
 208     this.pluginService.runHook('action:application.loaded')
 209   }
 210
 211   private initHotkeys () {
 212     this.hotkeysService.add([
 213       new Hotkey(['/', 's'], (event: KeyboardEvent): boolean => {
 214         document.getElementById('search-video').focus()
 215         return false
 216       }, undefined, this.i18n('Focus the search bar')),
 217       new Hotkey('b', (event: KeyboardEvent): boolean => {
 218         this.toggleMenu()
 219         return false
 220       }, undefined, this.i18n('Toggle the left menu')),
 221       new Hotkey('g o', (event: KeyboardEvent): boolean => {
 222         this.router.navigate([ '/videos/overview' ])
 223         return false
 224       }, undefined, this.i18n('Go to the videos overview page')),
 225       new Hotkey('g t', (event: KeyboardEvent): boolean => {
 226         this.router.navigate([ '/videos/trending' ])
 227         return false
 228       }, undefined, this.i18n('Go to the trending videos page')),
 229       new Hotkey('g r', (event: KeyboardEvent): boolean => {
 230         this.router.navigate([ '/videos/recently-added' ])
 231         return false
 232       }, undefined, this.i18n('Go to the recently added videos page')),
 233       new Hotkey('g l', (event: KeyboardEvent): boolean => {
 234         this.router.navigate([ '/videos/local' ])
 235         return false
 236       }, undefined, this.i18n('Go to the local videos page')),
 237       new Hotkey('g u', (event: KeyboardEvent): boolean => {
 238         this.router.navigate([ '/videos/upload' ])
 239         return false
 240       }, undefined, this.i18n('Go to the videos upload page')),
 241       new Hotkey('shift+t', (event: KeyboardEvent): boolean => {
 242         this.themeService.toggleDarkTheme()
 243         return false
 244       }, undefined, this.i18n('Toggle Dark theme'))
 245     ])
 246   }
 247 }