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 { ServerConfig, 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   private serverConfig: ServerConfig
  37
  38   constructor (
  39     private i18n: I18n,
  40     private viewportScroller: ViewportScroller,
  41     private router: Router,
  42     private authService: AuthService,
  43     private serverService: ServerService,
  44     private pluginService: PluginService,
  45     private instanceService: InstanceService,
  46     private domSanitizer: DomSanitizer,
  47     private redirectService: RedirectService,
  48     private screenService: ScreenService,
  49     private hotkeysService: HotkeysService,
  50     private themeService: ThemeService,
  51     private hooks: HooksService,
  52     private location: PlatformLocation,
  53     private modalService: NgbModal
  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     // Do not display menu on small screens
  82     if (this.screenService.isInSmallView()) {
  83       this.isMenuDisplayed = false
  84     }
  85
  86     this.initRouteEvents()
  87     this.injectJS()
  88     this.injectCSS()
  89
  90     this.initHotkeys()
  91
  92     fromEvent(window, 'resize')
  93       .pipe(debounceTime(200))
  94       .subscribe(() => this.onResize())
  95
  96     this.location.onPopState(() => this.modalService.dismissAll(POP_STATE_MODAL_DISMISS))
  97
  98     this.openModalsIfNeeded()
  99   }
 100
 101   isUserLoggedIn () {
 102     return this.authService.isLoggedIn()
 103   }
 104
 105   toggleMenu () {
 106     this.isMenuDisplayed = !this.isMenuDisplayed
 107     this.isMenuChangedByUser = true
 108   }
 109
 110   onResize () {
 111     this.isMenuDisplayed = window.innerWidth >= 800 && !this.isMenuChangedByUser
 112   }
 113
 114   getServerVersionAndCommit () {
 115     return this.serverService.getServerVersionAndCommit()
 116   }
 117
 118   private initRouteEvents () {
 119     let resetScroll = true
 120     const eventsObs = this.router.events
 121
 122     const scrollEvent = eventsObs.pipe(filter((e: Event): e is Scroll => e instanceof Scroll))
 123
 124     scrollEvent.subscribe(e => {
 125       if (e.position) {
 126         return this.viewportScroller.scrollToPosition(e.position)
 127       }
 128
 129       if (e.anchor) {
 130         return this.viewportScroller.scrollToAnchor(e.anchor)
 131       }
 132
 133       if (resetScroll) {
 134         return this.viewportScroller.scrollToPosition([ 0, 0 ])
 135       }
 136     })
 137
 138     const navigationEndEvent = eventsObs.pipe(filter((e: Event): e is NavigationEnd => e instanceof NavigationEnd))
 139
 140     // When we add the a-state parameter, we don't want to alter the scroll
 141     navigationEndEvent.pipe(pairwise())
 142                       .subscribe(([ e1, e2 ]) => {
 143                         try {
 144                           resetScroll = false
 145
 146                           const previousUrl = new URL(window.location.origin + e1.urlAfterRedirects)
 147                           const nextUrl = new URL(window.location.origin + e2.urlAfterRedirects)
 148
 149                           if (previousUrl.pathname !== nextUrl.pathname) {
 150                             resetScroll = true
 151                             return
 152                           }
 153
 154                           const nextSearchParams = nextUrl.searchParams
 155                           nextSearchParams.delete('a-state')
 156
 157                           const previousSearchParams = previousUrl.searchParams
 158
 159                           nextSearchParams.sort()
 160                           previousSearchParams.sort()
 161
 162                           if (nextSearchParams.toString() !== previousSearchParams.toString()) {
 163                             resetScroll = true
 164                           }
 165                         } catch (e) {
 166                           console.error('Cannot parse URL to check next scroll.', e)
 167                           resetScroll = true
 168                         }
 169                       })
 170
 171     navigationEndEvent.pipe(
 172       map(() => window.location.pathname),
 173       filter(pathname => !pathname || pathname === '/' || is18nPath(pathname))
 174     ).subscribe(() => this.redirectService.redirectToHomepage(true))
 175
 176     navigationEndEvent.subscribe(e => {
 177       this.hooks.runAction('action:router.navigation-end', 'common', { path: e.url })
 178     })
 179
 180     eventsObs.pipe(
 181       filter((e: Event): e is GuardsCheckStart => e instanceof GuardsCheckStart),
 182       filter(() => this.screenService.isInSmallView())
 183     ).subscribe(() => this.isMenuDisplayed = false) // User clicked on a link in the menu, change the page
 184   }
 185
 186   private injectJS () {
 187     // Inject JS
 188     this.serverService.getConfig()
 189         .subscribe(config => {
 190           if (config.instance.customizations.javascript) {
 191             try {
 192               // tslint:disable:no-eval
 193               eval(config.instance.customizations.javascript)
 194             } catch (err) {
 195               console.error('Cannot eval custom JavaScript.', err)
 196             }
 197           }
 198         })
 199   }
 200
 201   private injectCSS () {
 202     // Inject CSS if modified (admin config settings)
 203     this.serverService.configReloaded
 204         .subscribe(() => {
 205           const headStyle = document.querySelector('style.custom-css-style')
 206           if (headStyle) headStyle.parentNode.removeChild(headStyle)
 207
 208           // We test customCSS if the admin removed the css
 209           if (this.customCSS || this.serverConfig.instance.customizations.css) {
 210             const styleTag = '<style>' + this.serverConfig.instance.customizations.css + '</style>'
 211             this.customCSS = this.domSanitizer.bypassSecurityTrustHtml(styleTag)
 212           }
 213         })
 214   }
 215
 216   private async loadPlugins () {
 217     this.pluginService.initializePlugins()
 218
 219     this.hooks.runAction('action:application.init', 'common')
 220   }
 221
 222   private async openModalsIfNeeded () {
 223     this.authService.userInformationLoaded
 224         .pipe(
 225           map(() => this.authService.getUser()),
 226           filter(user => user.role === UserRole.ADMINISTRATOR)
 227         ).subscribe(user => setTimeout(() => this._openAdminModalsIfNeeded(user))) // setTimeout because of ngIf in template
 228   }
 229
 230   private async _openAdminModalsIfNeeded (user: User) {
 231     if (user.noWelcomeModal !== true) return this.welcomeModal.show()
 232
 233     if (user.noInstanceConfigWarningModal === true || !this.serverConfig.signup.allowed) return
 234
 235     this.instanceService.getAbout()
 236       .subscribe(about => {
 237         if (
 238           this.serverConfig.instance.name.toLowerCase() === 'peertube' ||
 239           !about.instance.terms ||
 240           !about.instance.administrator ||
 241           !about.instance.maintenanceLifetime
 242         ) {
 243           this.instanceConfigWarningModal.show(about)
 244         }
 245       })
 246   }
 247
 248   private initHotkeys () {
 249     this.hotkeysService.add([
 250       new Hotkey(['/', 's'], (event: KeyboardEvent): boolean => {
 251         document.getElementById('search-video').focus()
 252         return false
 253       }, undefined, this.i18n('Focus the search bar')),
 254
 255       new Hotkey('b', (event: KeyboardEvent): boolean => {
 256         this.toggleMenu()
 257         return false
 258       }, undefined, this.i18n('Toggle the left menu')),
 259
 260       new Hotkey('g o', (event: KeyboardEvent): boolean => {
 261         this.router.navigate([ '/videos/overview' ])
 262         return false
 263       }, undefined, this.i18n('Go to the discover videos page')),
 264
 265       new Hotkey('g t', (event: KeyboardEvent): boolean => {
 266         this.router.navigate([ '/videos/trending' ])
 267         return false
 268       }, undefined, this.i18n('Go to the trending videos page')),
 269
 270       new Hotkey('g r', (event: KeyboardEvent): boolean => {
 271         this.router.navigate([ '/videos/recently-added' ])
 272         return false
 273       }, undefined, this.i18n('Go to the recently added videos page')),
 274
 275       new Hotkey('g l', (event: KeyboardEvent): boolean => {
 276         this.router.navigate([ '/videos/local' ])
 277         return false
 278       }, undefined, this.i18n('Go to the local videos page')),
 279
 280       new Hotkey('g u', (event: KeyboardEvent): boolean => {
 281         this.router.navigate([ '/videos/upload' ])
 282         return false
 283       }, undefined, this.i18n('Go to the videos upload page'))
 284     ])
 285   }
 286 }