client/src/app/videos/video-watch/video-watch.component.ts

   1 import { Component, ElementRef, NgZone, OnDestroy, OnInit, ViewChild } from '@angular/core';
   2 import { ActivatedRoute } from '@angular/router';
   3
   4 import { ModalDirective } from 'ng2-bootstrap/components/modal';
   5 import { MetaService } from 'ng2-meta';
   6 import * as videojs from 'video.js';
   7
   8 import { Video, VideoService } from '../shared';
   9 import { WebTorrentService } from './webtorrent.service';
  10
  11 @Component({
  12   selector: 'my-video-watch',
  13   templateUrl: './video-watch.component.html',
  14   styleUrls: [ './video-watch.component.scss' ]
  15 })
  16
  17 export class VideoWatchComponent implements OnInit, OnDestroy {
  18   private static LOADTIME_TOO_LONG: number = 30000;
  19
  20   @ViewChild('magnetUriModal') magnetUriModal: ModalDirective;
  21   @ViewChild('shareModal') shareModal: ModalDirective;
  22
  23   downloadSpeed: number;
  24   error: boolean = false;
  25   loading: boolean = false;
  26   numPeers: number;
  27   player: VideoJSPlayer;
  28   uploadSpeed: number;
  29   video: Video = null;
  30
  31   private errorTimer: NodeJS.Timer;
  32   private sub: any;
  33   private torrentInfosInterval: NodeJS.Timer;
  34
  35   constructor(
  36     private elementRef: ElementRef,
  37     private ngZone: NgZone,
  38     private route: ActivatedRoute,
  39     private videoService: VideoService,
  40     private metaService: MetaService,
  41     private webTorrentService: WebTorrentService
  42   ) {}
  43
  44   ngOnInit() {
  45     this.sub = this.route.params.subscribe(routeParams => {
  46       let id = routeParams['id'];
  47       this.videoService.getVideo(id).subscribe(
  48         video => {
  49           this.video = video;
  50           this.setOpenGraphTags();
  51           this.loadVideo();
  52         },
  53         error => alert(error.text)
  54       );
  55     });
  56
  57     const videojsOptions = {
  58       controls: true,
  59       autoplay: false
  60     };
  61
  62     const self = this;
  63     videojs('video-container', videojsOptions, function () {
  64       self.player = this;
  65     });
  66   }
  67
  68   ngOnDestroy() {
  69     console.log('Removing video from webtorrent.');
  70     clearInterval(this.torrentInfosInterval);
  71     clearTimeout(this.errorTimer);
  72     this.webTorrentService.remove(this.video.magnetUri);
  73
  74     this.sub.unsubscribe();
  75   }
  76
  77   loadVideo() {
  78     // Reset the error
  79     this.error = false;
  80     // We are loading the video
  81     this.loading = true;
  82
  83     console.log('Adding ' + this.video.magnetUri + '.');
  84
  85     // The callback might never return if there are network issues
  86     // So we create a timer to inform the user the load is abnormally long
  87     this.errorTimer = setTimeout(() => this.loadTooLong(), VideoWatchComponent.LOADTIME_TOO_LONG);
  88
  89     this.webTorrentService.add(this.video.magnetUri, (torrent) => {
  90       // Clear the error timer
  91       clearTimeout(this.errorTimer);
  92       // Maybe the error was fired by the timer, so reset it
  93       this.error = false;
  94
  95       // We are not loading the video anymore
  96       this.loading = false;
  97
  98       console.log('Added ' + this.video.magnetUri + '.');
  99       torrent.files[0].renderTo('#video-container video', { autoplay: true }, (err) => {
 100         if (err) {
 101           alert('Cannot append the file.');
 102           console.error(err);
 103         }
 104       });
 105
 106       this.runInProgress(torrent);
 107     });
 108   }
 109
 110   showMagnetUriModal() {
 111     this.magnetUriModal.show();
 112   }
 113
 114   hideMagnetUriModal() {
 115     this.magnetUriModal.hide();
 116   }
 117
 118   showShareModal() {
 119     this.shareModal.show();
 120   }
 121
 122   hideShareModal() {
 123     this.shareModal.hide();
 124   }
 125
 126   getVideoIframeCode() {
 127     return '<iframe width="560" height="315" ' +
 128            'src="' + window.location.origin + '/videos/embed/' + this.video.id + '" ' +
 129            'frameborder="0" allowfullscreen>' +
 130            '</iframe>';
 131   }
 132
 133   getVideoUrl() {
 134     return window.location.href;
 135   }
 136
 137   private loadTooLong() {
 138     this.error = true;
 139     console.error('The video load seems to be abnormally long.');
 140   }
 141
 142   private setOpenGraphTags() {
 143     this.metaService.setTag('og:type', 'video');
 144
 145     this.metaService.setTag('og:title', this.video.name);
 146     this.metaService.setTag('name', this.video.name);
 147
 148     this.metaService.setTag('og:description', this.video.description);
 149     this.metaService.setTag('description', this.video.description);
 150
 151     this.metaService.setTag('og:image', this.video.thumbnailPath);
 152
 153     this.metaService.setTag('og:duration', this.video.duration);
 154
 155     this.metaService.setTag('og:site_name', 'PeerTube');
 156
 157     this.metaService.setTag('og:url', window.location.href);
 158     this.metaService.setTag('url', window.location.href);
 159   }
 160
 161   private runInProgress(torrent: any) {
 162     // Refresh each second
 163     this.torrentInfosInterval = setInterval(() => {
 164       this.ngZone.run(() => {
 165         this.downloadSpeed = torrent.downloadSpeed;
 166         this.numPeers = torrent.numPeers;
 167         this.uploadSpeed = torrent.uploadSpeed;
 168       });
 169     }, 1000);
 170   }
 171 }