mistserver/embed/wrappers/videojs.js

mistplayers.videojs = {
  name: 'VideoJS player',
  version: '1.1',
  mimes: ['html5/video/mp4','html5/application/vnd.apple.mpegurl','html5/video/ogg','html5/video/webm'],
  priority: Object.keys(mistplayers).length + 1,
  isMimeSupported: function (mimetype) {
    return (this.mimes.indexOf(mimetype) == -1 ? false : true);
  },
  isBrowserSupported: function (mimetype,source,options,streaminfo,logfunc) {
    
    //dont use https if the player is loaded over http
    if ((options.host.substr(0,7) == 'http://') && (source.url.substr(0,8) == 'https://')) {
      if (logfunc) { logfunc('HTTP/HTTPS mismatch for this source'); }
      return false;
    }
    
    //dont use videojs if this location is loaded over file://
    if ((location.protocol == 'file:') && (mimetype == 'html5/application/vnd.apple.mpegurl')) {
      if (logfunc) { logfunc('This source ('+mimetype+') won\'t work if the page is run via file://'); }
      return false;
    }
    
    //dont use HLS if there is an MP3 audio track, unless we're on apple or edge
    if ((mimetype == 'html5/application/vnd.apple.mpegurl') && (['iPad','iPhone','iPod','MacIntel'].indexOf(navigator.platform) == -1) && (navigator.userAgent.indexOf('Edge') == -1)) {
      var audio = false;
      var nonmp3 = false;
      for (var i in streaminfo.meta.tracks) {
        var t = streaminfo.meta.tracks[i];
        if (t.type == 'audio') {
          audio = true;
          if (t.codec != 'MP3') {
            nonmp3 = true;
          }
        }
      }
      if ((audio) && (!nonmp3)) {
        if (logfunc) { logfunc('This source has audio, but only MP3, and this browser can\'t play MP3 via HLS'); }
        return false;
      }
    }
    
    
    return ('MediaSource' in window);
  },
  player: function(){},
};
var p = mistplayers.videojs.player;
p.prototype = new MistPlayer();
p.prototype.build = function (options,callback) {
  var me = this; //to allow nested functions to access the player class itself
  
  function onplayerload () {
    me.addlog('Building VideoJS player..');
    
    var cont = document.createElement('div');
    cont.className = 'mistplayer';
    
    var ele = me.getElement('video');
    cont.appendChild(ele);
    ele.className = '';
    ele.crossOrigin = 'anonymous'; //required for subtitles
    
    var shortmime = options.source.type.split('/');
    shortmime.shift();
    
    var source = document.createElement('source');
    source.setAttribute('src',options.src);
    me.source = source;
    ele.appendChild(source);
    source.type = shortmime.join('/');
    me.addlog('Adding '+source.type+' source @ '+options.src);
    if (source.type == 'application/vnd.apple.mpegurl') { source.type = 'application/x-mpegURL'; }
    
    ele.className += ' video-js';
    ele.width = options.width;
    ele.height = options.height;
    ele.style.width = options.width+'px';
    ele.style.height = options.height+'px';
    
    var vjsopts = {
      preload: 'auto'
    };
    
    if (options.autoplay) { vjsopts.autoplay = true; }
    if (options.loop) { 
      vjsopts.loop = true;
      ele.loop = true;
    }
    if (options.poster) { vjsopts.poster = options.poster; }
    if (options.controls) {
      if ((options.controls == 'stock') || (!me.buildMistControls())) {
        //MistControls have failed to build in the if condition
        ele.setAttribute('controls',true);
      }
    }
    
    
    me.onready(function(){
      me.videojs = videojs(ele,vjsopts,function(){
        me.addlog('Videojs initialized');
      });
    });
    
    me.addlog('Built html');
    
    //forward events
    ele.addEventListener('error',function(e){
      var msg;
      if ('message' in e) {
        msg = e.message;
      }
      else {
        msg = 'readyState: ';
        switch (me.element.readyState) {
          case 0:
            msg += 'HAVE_NOTHING';
            break;
          case 1:
            msg += 'HAVE_METADATA';
            break;
          case 2:
            msg += 'HAVE_CURRENT_DATA';
            break;
          case 3:
            msg += 'HAVE_FUTURE_DATA';
            break;
          case 4:
            msg += 'HAVE_ENOUGH_DATA';
            break;
        }
        msg += ' networkState: ';
        switch (me.element.networkState) {
          case 0:
            msg += 'NETWORK_EMPTY';
            break;
          case 1:
            msg += 'NETWORK_IDLE';
            break;
          case 2:
            msg += 'NETWORK_LOADING';
            break;
          case 3:
            msg += 'NETWORK_NO_SOURCE';
            break;
        }
      }
      //prevent onerror loops
      if (e.target == me.element) {
        e.message = msg;
      }
      else {
        me.adderror(msg);
      }
      
    });
    var events = ['abort','canplay','canplaythrough','durationchange','emptied','ended','interruptbegin','interruptend','loadeddata','loadedmetadata','loadstart','pause','play','playing','ratechange','seeked','seeking','stalled','volumechange','waiting','progress'];
    for (var i in events) {
      ele.addEventListener(events[i],function(e){
        me.addlog('Player event fired: '+e.type);
      });
    }
    
    callback(cont);
  }
  
  if ('videojs' in window) {
    onplayerload();
  }
  else {
    //load the videojs player
    var scripttag = document.createElement('script');
    scripttag.src = options.host+'/videojs.js';
    me.addlog('Retrieving videojs player code from '+scripttag.src);
    document.head.appendChild(scripttag);
    scripttag.onerror = function(){
      me.askNextCombo('Failed to load videojs.js');
    }
    scripttag.onload = function(){
      onplayerload();
    }
  }
}
p.prototype.play = function(){ return this.element.play(); };
p.prototype.pause = function(){ return this.element.pause(); };
p.prototype.volume = function(level){
  if (typeof level == 'undefined' ) { return this.element.volume; }
  return this.element.volume = level;
};
p.prototype.loop = function(bool){ 
  if (typeof bool == 'undefined') {
    return this.element.loop;
  }
  return this.element.loop = bool;
};
p.prototype.load = function(){ return this.element.load(); };
if (document.fullscreenEnabled || document.webkitFullscreenEnabled || document.mozFullScreenEnabled || document.msFullscreenEnabled) {
  p.prototype.fullscreen = function(){
    if(this.element.requestFullscreen) {
      return this.element.requestFullscreen();
    } else if(this.element.mozRequestFullScreen) {
      return this.element.mozRequestFullScreen();
    } else if(this.element.webkitRequestFullscreen) {
      return this.element.webkitRequestFullscreen();
    } else if(this.element.msRequestFullscreen) {
      return this.element.msRequestFullscreen();
    }
  };
}
p.prototype.updateSrc = function(src){
  if (videojs in this) {
    if (src == '') {
      this.videojs.dispose();
      return;
    }
    this.videojs.src({
      src: src,
      type: this.source.type
    });
    return true;
  }
  return false;
};