video.js/src/player.js

/* UI Component- Base class for all UI objects
================================================================================ */
_V_.Player = _V_.Component.extend({

  init: function(tag, addOptions, ready){

    this.tag = tag; // Store the original tag used to set options

    var el = this.el = _V_.createElement("div"), // Div to contain video and controls
        options = this.options = {},
        width = options.width = tag.getAttribute('width'),
        height = options.height = tag.getAttribute('height'),

        // Browsers default to 300x150 if there's no width/height or video size data.
        initWidth = width || 300,
        initHeight = height || 150;

    // Make player findable on elements
    tag.player = el.player = this;

    // Add callback to ready queue
    this.ready(ready);

    // Wrap video tag in div (el/box) container
    tag.parentNode.insertBefore(el, tag);
    el.appendChild(tag); // Breaks iPhone, fixed in HTML5 setup.

    // Give video tag properties to box
    el.id = this.id = tag.id; // ID will now reference box, not the video tag
    el.className = tag.className;
    // Update tag id/class for use as HTML5 playback tech
    tag.id += "_html5_api";
    tag.className = "vjs-tech";

    // Make player easily findable by ID
    _V_.players[el.id] = this;

    // Make box use width/height of tag, or default 300x150
    el.setAttribute("width", initWidth);
    el.setAttribute("height", initHeight);
    // Enforce with CSS since width/height attrs don't work on divs
    el.style.width = initWidth+"px";
    el.style.height = initHeight+"px";
    // Remove width/height attrs from tag so CSS can make it 100% width/height
    tag.removeAttribute("width");
    tag.removeAttribute("height");

    // Set Options
    _V_.merge(options, _V_.options); // Copy Global Defaults
    _V_.merge(options, this.getVideoTagSettings()); // Override with Video Tag Options
    _V_.merge(options, addOptions); // Override/extend with options from setup call

    // Store controls setting, and then remove immediately so native controls don't flash.
    tag.removeAttribute("controls");

    // Poster will be handled by a manual <img>
    tag.removeAttribute("poster");

    // Empty video tag sources and tracks so the built in player doesn't use them also.
    if (tag.hasChildNodes()) {
      for (var i=0,j=tag.childNodes;i<j.length;i++) {
        if (j[i].nodeName == "SOURCE" || j[i].nodeName == "TRACK") {
          tag.removeChild(j[i]);
        }
      }
    }

    // Cache for video property values.
    this.values = {};

    this.addClass("vjs-paused");

    this.addEvent("ended", this.onEnded);
    this.addEvent("play", this.onPlay);
    this.addEvent("pause", this.onPause);
    this.addEvent("error", this.onError);

    // When the API is ready, loop through the components and add to the player.
    if (options.controls) {
      this.ready(function(){
        this.initComponents();
      });
    }

    // If there are no sources when the player is initialized,
    // load the first supported playback technology.
    if (!options.sources || options.sources.length == 0) {
      for (var i=0,j=options.techOrder; i<j.length; i++) {
        var techName = j[i],
            tech = _V_[techName];

        // Check if the browser supports this technology
        if (tech.isSupported()) {
          this.loadTech(techName);
          break;
        }
      }
    } else {
      // Loop through playback technologies (HTML5, Flash) and check for support. Then load the best source.
      // A few assumptions here:
      //   All playback technologies respect preload false.
      this.src(options.sources);
    }
  },

  // Cache for video property values.
  values: {},

  destroy: function(){
    // Ensure that tracking progress and time progress will stop and plater deleted
    this.stopTrackingProgress();
    this.stopTrackingCurrentTime();
    _V_.players[this.id] = null;
    delete _V_.players[this.id];
    this.tech.destroy();
    this.el.parentNode.removeChild(this.el);
  },

  createElement: function(type, options){},

  getVideoTagSettings: function(){
    var options = {
      sources: [],
      tracks: []
    };

    options.src = this.tag.getAttribute("src");
    options.controls = this.tag.getAttribute("controls") !== null;
    options.poster = this.tag.getAttribute("poster");
    options.preload = this.tag.getAttribute("preload");
    options.autoplay = this.tag.getAttribute("autoplay") !== null; // hasAttribute not IE <8 compatible
    options.loop = this.tag.getAttribute("loop") !== null;
    options.muted = this.tag.getAttribute("muted") !== null;

    if (this.tag.hasChildNodes()) {
      for (var c,i=0,j=this.tag.childNodes;i<j.length;i++) {
        c = j[i];
        if (c.nodeName == "SOURCE") {
          options.sources.push({
            src: c.getAttribute('src'),
            type: c.getAttribute('type'),
            media: c.getAttribute('media'),
            title: c.getAttribute('title')
          });
        }
        if (c.nodeName == "TRACK") {
          options.tracks.push(new _V_.Track({
            src: c.getAttribute("src"),
            kind: c.getAttribute("kind"),
            srclang: c.getAttribute("srclang"),
            label: c.getAttribute("label"),
            'default': c.getAttribute("default") !== null,
            title: c.getAttribute("title")
          }, this));
  
        }
      }
    }
    return options;
  },

  /* PLayback Technology (tech)
  ================================================================================ */
  // Load/Create an instance of playback technlogy including element and API methods
  // And append playback element in player div.
  loadTech: function(techName, source){

    // Pause and remove current playback technology
    if (this.tech) {
      this.unloadTech();

    // If the first time loading, HTML5 tag will exist but won't be initialized
    // So we need to remove it if we're not loading HTML5
    } else if (techName != "html5" && this.tag) {
      this.el.removeChild(this.tag);
      this.tag = false;
    }

    this.techName = techName;

    // Turn off API access because we're loading a new tech that might load asynchronously
    this.isReady = false;

    var techReady = function(){
      this.player.triggerReady();

      // Manually track progress in cases where the browser/flash player doesn't report it.
      if (!this.support.progressEvent) {
        this.player.manualProgressOn();
      }

      // Manually track timeudpates in cases where the browser/flash player doesn't report it.
      if (!this.support.timeupdateEvent) {
        this.player.manualTimeUpdatesOn();
      }
    }

    // Grab tech-specific options from player options and add source and parent element to use.
    var techOptions = _V_.merge({ source: source, parentEl: this.el }, this.options[techName])

    if (source) {
      if (source.src == this.values.src && this.values.currentTime > 0) {
        techOptions.startTime = this.values.currentTime;
      }

      this.values.src = source.src;
    }

    // Initialize tech instance
    this.tech = new _V_[techName](this, techOptions);
    this.tech.ready(techReady);
  },

  unloadTech: function(){
    this.tech.destroy();

    // Turn off any manual progress or timeupdate tracking
    if (this.manualProgress) { this.manualProgressOff(); }

    if (this.manualTimeUpdates) { this.manualTimeUpdatesOff(); }

    this.tech = false;
  },

  // There's many issues around changing the size of a Flash (or other plugin) object.
  // First is a plugin reload issue in Firefox that has been around for 11 years: https://bugzilla.mozilla.org/show_bug.cgi?id=90268
  // Then with the new fullscreen API, Mozilla and webkit browsers will reload the flash object after going to fullscreen.
  // To get around this, we're unloading the tech, caching source and currentTime values, and reloading the tech once the plugin is resized.
  // reloadTech: function(betweenFn){
  //   _V_.log("unloadingTech")
  //   this.unloadTech();
  //   _V_.log("unloadedTech")
  //   if (betweenFn) { betweenFn.call(); }
  //   _V_.log("LoadingTech")
  //   this.loadTech(this.techName, { src: this.values.src })
  //   _V_.log("loadedTech")
  // },

  /* Fallbacks for unsupported event types
  ================================================================================ */
  // Manually trigger progress events based on changes to the buffered amount
  // Many flash players and older HTML5 browsers don't send progress or progress-like events
  manualProgressOn: function(){
    this.manualProgress = true;

    // Trigger progress watching when a source begins loading
    this.trackProgress();

    // Watch for a native progress event call on the tech element
    // In HTML5, some older versions don't support the progress event
    // So we're assuming they don't, and turning off manual progress if they do.
    this.tech.addEvent("progress", function(){

      // Remove this listener from the element
      this.removeEvent("progress", arguments.callee);

      // Update known progress support for this playback technology
      this.support.progressEvent = true;

      // Turn off manual progress tracking
      this.player.manualProgressOff();
    });
  },

  manualProgressOff: function(){
    this.manualProgress = false;
    this.stopTrackingProgress();
  },

  trackProgress: function(){
    this.progressInterval = setInterval(_V_.proxy(this, function(){
      // Don't trigger unless buffered amount is greater than last time
      // log(this.values.bufferEnd, this.buffered().end(0), this.duration())
      /* TODO: update for multiple buffered regions */
      if (this.values.bufferEnd < this.buffered().end(0)) {
        this.triggerEvent("progress");
      } else if (this.bufferedPercent() == 1) {
        this.stopTrackingProgress();
        this.triggerEvent("progress"); // Last update
      }
    }), 500);
  },
  stopTrackingProgress: function(){ clearInterval(this.progressInterval); },

  /* Time Tracking -------------------------------------------------------------- */
  manualTimeUpdatesOn: function(){
    this.manualTimeUpdates = true;

    this.addEvent("play", this.trackCurrentTime);
    this.addEvent("pause", this.stopTrackingCurrentTime);
    // timeupdate is also called by .currentTime whenever current time is set

    // Watch for native timeupdate event
    this.tech.addEvent("timeupdate", function(){

      // Remove this listener from the element
      this.removeEvent("timeupdate", arguments.callee);

      // Update known progress support for this playback technology
      this.support.timeupdateEvent = true;

      // Turn off manual progress tracking
      this.player.manualTimeUpdatesOff();
    });
  },

  manualTimeUpdatesOff: function(){
    this.manualTimeUpdates = false;
    this.stopTrackingCurrentTime();
    this.removeEvent("play", this.trackCurrentTime);
    this.removeEvent("pause", this.stopTrackingCurrentTime);
  },

  trackCurrentTime: function(){
    if (this.currentTimeInterval) { this.stopTrackingCurrentTime(); }
    this.currentTimeInterval = setInterval(_V_.proxy(this, function(){
      this.triggerEvent("timeupdate");
    }), 250); // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
  },

  // Turn off play progress tracking (when paused or dragging)
  stopTrackingCurrentTime: function(){ clearInterval(this.currentTimeInterval); },

  /* Player event handlers (how the player reacts to certain events)
  ================================================================================ */
  onEnded: function(){
    if (this.options.loop) {
      this.currentTime(0);
      this.play();
    } else {
      this.pause();
      this.currentTime(0);
      this.pause();
    }
  },

  onPlay: function(){
    _V_.removeClass(this.el, "vjs-paused");
    _V_.addClass(this.el, "vjs-playing");
  },

  onPause: function(){
    _V_.removeClass(this.el, "vjs-playing");
    _V_.addClass(this.el, "vjs-paused");
  },

  onError: function(e) {
    _V_.log("Video Error", e);
  },

/* Player API
================================================================================ */

  // Pass values to the playback tech
  techCall: function(method, arg){

    // If it's not ready yet, call method when it is
    if (!this.tech.isReady) {
      this.tech.ready(function(){
        this[method](arg);
      });

    // Otherwise call method now
    } else {
      try {
        this.tech[method](arg);
      } catch(e) {
        _V_.log(e);
      }
    }
  },

  // Get calls can't wait for the tech, and sometimes don't need to.
  techGet: function(method){

    // Make sure tech is ready
    if (this.tech.isReady) {

      // Flash likes to die and reload when you hide or reposition it.
      // In these cases the object methods go away and we get errors.
      // When that happens we'll catch the errors and inform tech that it's not ready any more.
      try {
        return this.tech[method]();
      } catch(e) {

        // When building additional tech libs, an expected method may not be defined yet
        if (this.tech[method] === undefined) {
          _V_.log("Video.js: " + method + " method not defined for "+this.techName+" playback technology.", e);

        } else {

          // When a method isn't available on the object it throws a TypeError
          if (e.name == "TypeError") {
            _V_.log("Video.js: " + method + " unavailable on "+this.techName+" playback technology element.", e);
            this.tech.isReady = false;

          } else {
            _V_.log(e);
          }
        }
      }
    }

    return;
  },

  // Method for calling methods on the current playback technology
  // techCall: function(method, arg){
  // 
  //   // if (this.isReady) {
  //   //   
  //   // } else {
  //   //   _V_.log("The playback technology API is not ready yet. Use player.ready(myFunction)."+" ["+method+"]", arguments.callee.caller.arguments.callee.caller.arguments.callee.caller)
  //   //   return false;
  //   //   // throw new Error("The playback technology API is not ready yet. Use player.ready(myFunction)."+" ["+method+"]");
  //   // }
  // },

  // http://dev.w3.org/html5/spec/video.html#dom-media-play
  play: function(){
    this.techCall("play");
    return this;
  },

  // http://dev.w3.org/html5/spec/video.html#dom-media-pause
  pause: function(){
    this.techCall("pause");
    return this;
  },
  
  // http://dev.w3.org/html5/spec/video.html#dom-media-paused
  // The initial state of paused should be true (in Safari it's actually false)
  paused: function(){
    return (this.techGet("paused") === false) ? false : true;
  },

  // http://dev.w3.org/html5/spec/video.html#dom-media-currenttime
  currentTime: function(seconds){
    if (seconds !== undefined) {

      // Cache the last set value for smoother scrubbing.
      this.values.lastSetCurrentTime = seconds;

      this.techCall("setCurrentTime", seconds);

      // Improve the accuracy of manual timeupdates
      if (this.manualTimeUpdates) { this.triggerEvent("timeupdate"); }

      return this;
    }

    // Cache last currentTime and return
    // Default to 0 seconds
    return this.values.currentTime = (this.techGet("currentTime") || 0);
  },

  // http://dev.w3.org/html5/spec/video.html#dom-media-duration
  // Duration should return NaN if not available. ParseFloat will turn false-ish values to NaN.
  duration: function(){
    return parseFloat(this.techGet("duration"));
  },

  // Calculates how much time is left. Not in spec, but useful.
  remainingTime: function(){
    return this.duration() - this.currentTime();
  },

  // http://dev.w3.org/html5/spec/video.html#dom-media-buffered
  // Buffered returns a timerange object. Kind of like an array of portions of the video that have been downloaded.
  // So far no browsers return more than one range (portion)
  buffered: function(){
    var buffered = this.techGet("buffered"),
        start = 0,
        end = this.values.bufferEnd = this.values.bufferEnd || 0, // Default end to 0 and store in values
        timeRange;

    if (buffered && buffered.length > 0 && buffered.end(0) !== end) {
      end = buffered.end(0);
      // Storing values allows them be overridden by setBufferedFromProgress
      this.values.bufferEnd = end;
    }

    return _V_.createTimeRange(start, end);
  },

  // Calculates amount of buffer is full. Not in spec but useful.
  bufferedPercent: function(){
    return (this.duration()) ? this.buffered().end(0) / this.duration() : 0;
  },

  // http://dev.w3.org/html5/spec/video.html#dom-media-volume
  volume: function(percentAsDecimal){
    var vol;

    if (percentAsDecimal !== undefined) {
      vol = Math.max(0, Math.min(1, parseFloat(percentAsDecimal))); // Force value to between 0 and 1
      this.values.volume = vol;
      this.techCall("setVolume", vol);
      _V_.setLocalStorage("volume", vol);
      return this;
    }

    // Default to 1 when returning current volume.
    vol = parseFloat(this.techGet("volume"));
    return (isNaN(vol)) ? 1 : vol;
  },

  // http://dev.w3.org/html5/spec/video.html#attr-media-muted
  muted: function(muted){
    if (muted !== undefined) {
      this.techCall("setMuted", muted);
      return this;
    }
    return this.techGet("muted") || false; // Default to false
  },

  // http://dev.w3.org/html5/spec/dimension-attributes.html#attr-dim-height
  // Video tag width/height only work in pixels. No percents.
  // We could potentially allow percents but won't for now until we can do testing around it.
  width: function(width, skipListeners){
    if (width !== undefined) {
      this.el.width = width;
      this.el.style.width = width+"px";

      // skipListeners allows us to avoid triggering the resize event when setting both width and height
      if (!skipListeners) { this.triggerEvent("resize"); }
      return this;
    }
    return parseInt(this.el.getAttribute("width"));
  },
  height: function(height){
    if (height !== undefined) {
      this.el.height = height;
      this.el.style.height = height+"px";
      this.triggerEvent("resize");
      return this;
    }
    return parseInt(this.el.getAttribute("height"));
  },
  // Set both width and height at the same time.
  size: function(width, height){
    // Skip resize listeners on width for optimization
    return this.width(width, true).height(height);
  },

  // Check if current tech can support native fullscreen (e.g. with built in controls lik iOS, so not our flash swf)
  supportsFullScreen: function(){ return this.techGet("supportsFullScreen") || false; },

  // Turn on fullscreen (or window) mode
  requestFullScreen: function(){
    var requestFullScreen = _V_.support.requestFullScreen;

    this.isFullScreen = true;

    // Check for browser element fullscreen support
    if (requestFullScreen) {

      // Flash and other plugins get reloaded when you take their parent to fullscreen.
      // To fix that we'll remove the tech, and reload it after the resize has finished.
      if (this.tech.support.fullscreenResize === false && this.options.flash.iFrameMode != true) {

        this.pause();
        this.unloadTech();

        _V_.addEvent(document, requestFullScreen.eventName, this.proxy(function(){
          _V_.removeEvent(document, requestFullScreen.eventName, arguments.callee);
          this.loadTech(this.techName, { src: this.values.src });
        }));

        this.el[requestFullScreen.requestFn]();

      } else {
        this.el[requestFullScreen.requestFn]();
      }

      // In case the user presses escape to exit fullscreen, we need to update fullscreen status
      _V_.addEvent(document, requestFullScreen.eventName, this.proxy(function(){
        this.isFullScreen = document[requestFullScreen.isFullScreen];
      }));

    } else if (this.tech.supportsFullScreen()) {
      this.techCall("enterFullScreen");

    } else {
      this.enterFullWindow();
    }

     this.triggerEvent("fullscreenchange");

     return this;
   },

   cancelFullScreen: function(){
    var requestFullScreen = _V_.support.requestFullScreen;

    // Check for browser element fullscreen support
    if (requestFullScreen) {

     // Flash and other plugins get reloaded when you take their parent to fullscreen.
     // To fix that we'll remove the tech, and reload it after the resize has finished.
     if (this.tech.support.fullscreenResize === false && this.options.flash.iFrameMode != true) {

       this.pause();
       this.unloadTech();

       _V_.addEvent(document, requestFullScreen.eventName, this.proxy(function(){
         _V_.removeEvent(document, requestFullScreen.eventName, arguments.callee);
         this.loadTech(this.techName, { src: this.values.src })
       }));

       document[requestFullScreen.cancelFn]();

     } else {
       document[requestFullScreen.cancelFn]();
     }

    } else if (this.tech.supportsFullScreen()) {
     this.techCall("exitFullScreen");

    } else {
     this.exitFullWindow();
    }

    this.isFullScreen = false;
    this.triggerEvent("fullscreenchange");

    return this;
  },

  // When fullscreen isn't supported we can stretch the video container to as wide as the browser will let us.
  enterFullWindow: function(){
    this.isFullWindow = true;

    // Storing original doc overflow value to return to when fullscreen is off
    this.docOrigOverflow = document.documentElement.style.overflow;

    // Add listener for esc key to exit fullscreen
    _V_.addEvent(document, "keydown", _V_.proxy(this, this.fullWindowOnEscKey));

    // Hide any scroll bars
    document.documentElement.style.overflow = 'hidden';

    // Apply fullscreen styles
    _V_.addClass(document.body, "vjs-full-window");
    _V_.addClass(this.el, "vjs-fullscreen");

    this.triggerEvent("enterFullWindow");
  },
  fullWindowOnEscKey: function(event){
    if (event.keyCode == 27) {
      if (this.isFullScreen == true) {
        this.cancelFullScreen();
      } else {
        this.exitFullWindow();
      }
    }
  },

  exitFullWindow: function(){
    this.isFullWindow = false;
    _V_.removeEvent(document, "keydown", this.fullWindowOnEscKey);

    // Unhide scroll bars.
    document.documentElement.style.overflow = this.docOrigOverflow;

    // Remove fullscreen styles
    _V_.removeClass(document.body, "vjs-full-window");
    _V_.removeClass(this.el, "vjs-fullscreen");

    // Resize the box, controller, and poster to original sizes
    // this.positionAll();
    this.triggerEvent("exitFullWindow");
  },

  selectSource: function(sources){

    // Loop through each playback technology in the options order
    for (var i=0,j=this.options.techOrder;i<j.length;i++) {
      var techName = j[i],
          tech = _V_[techName];
          // tech = _V_.tech[techName];

      // Check if the browser supports this technology
      if (tech.isSupported()) {

        // Loop through each source object
        for (var a=0,b=sources;a<b.length;a++) {
          var source = b[a];

          // Check if source can be played with this technology
          if (tech.canPlaySource.call(this, source)) {

            return { source: source, tech: techName };

          }
        }
      }
    }

    return false;
  },

  // src is a pretty powerful function
  // If you pass it an array of source objects, it will find the best source to play and use that object.src
  //   If the new source requires a new playback technology, it will switch to that.
  // If you pass it an object, it will set the source to object.src
  // If you pass it anything else (url string) it will set the video source to that
  src: function(source){
    // Case: Array of source objects to choose from and pick the best to play
    if (source instanceof Array) {

      var sourceTech = this.selectSource(source),
          source,
          techName;

      if (sourceTech) {
          source = sourceTech.source;
          techName = sourceTech.tech;

        // If this technology is already loaded, set source
        if (techName == this.techName) {
          this.src(source); // Passing the source object

        // Otherwise load this technology with chosen source
        } else {
          this.loadTech(techName, source);
        }
      } else {
        _V_.log("No compatible source and playback technology were found.")
      }

    // Case: Source object { src: "", type: "" ... }
    } else if (source instanceof Object) {

      if (_V_[this.techName].canPlaySource(source)) {
        this.src(source.src);
      } else {
        // Send through tech loop to check for a compatible technology.
        this.src([source]);
      }

    // Case: URL String (http://myvideo...)
    } else {
      // Cache for getting last set source
      this.values.src = source;

      if (!this.isReady) {
        this.ready(function(){
          this.src(source);
        });
      } else {
        this.techCall("src", source);
        if (this.options.preload == "auto") {
          this.load();
        }
        if (this.options.autoplay) {
          this.play();
        }
      }
    }
    return this;
  },

  // Begin loading the src data
  // http://dev.w3.org/html5/spec/video.html#dom-media-load
  load: function(){
    this.techCall("load");
    return this;
  },

  // http://dev.w3.org/html5/spec/video.html#dom-media-currentsrc
  currentSrc: function(){
    return this.techGet("currentSrc") || this.values.src || "";
  },

  textTrackValue: function(kind, value){
    if (value !== undefined) {
      this.values[kind] = value;
      this.triggerEvent(kind+"update");
      return this;
    }
    return this.values[kind];
  },

  // Attributes/Options
  preload: function(value){
    if (value !== undefined) {
      this.techCall("setPreload", value);
      this.options.preload = value;
      return this;
    }
    return this.techGet("preload");
  },
  autoplay: function(value){
    if (value !== undefined) {
      this.techCall("setAutoplay", value);
      this.options.autoplay = value;
      return this;
    }
    return this.techGet("autoplay", value);
  },
  loop: function(value){
    if (value !== undefined) {
      this.techCall("setLoop", value);
      this.options.loop = value;
      return this;
    }
    return this.techGet("loop");
  },

  controls: function(){ return this.options.controls; },
  textTracks: function(){ return this.options.tracks; },
  poster: function(){ return this.techGet("poster"); },
  error: function(){ return this.techGet("error"); },
  ended: function(){ return this.techGet("ended"); }

  // Methods to add support for
  // networkState: function(){ return this.techCall("networkState"); },
  // readyState: function(){ return this.techCall("readyState"); },
  // seeking: function(){ return this.techCall("seeking"); },
  // initialTime: function(){ return this.techCall("initialTime"); },
  // startOffsetTime: function(){ return this.techCall("startOffsetTime"); },
  // played: function(){ return this.techCall("played"); },
  // seekable: function(){ return this.techCall("seekable"); },
  // videoTracks: function(){ return this.techCall("videoTracks"); },
  // audioTracks: function(){ return this.techCall("audioTracks"); },
  // videoWidth: function(){ return this.techCall("videoWidth"); },
  // videoHeight: function(){ return this.techCall("videoHeight"); },
  // defaultPlaybackRate: function(){ return this.techCall("defaultPlaybackRate"); },
  // playbackRate: function(){ return this.techCall("playbackRate"); },
  // mediaGroup: function(){ return this.techCall("mediaGroup"); },
  // controller: function(){ return this.techCall("controller"); },
  // defaultMuted: function(){ return this.techCall("defaultMuted"); }
});

// RequestFullscreen API
(function(){
  var requestFn,
      cancelFn,
      eventName,
      isFullScreen,
      playerProto = _V_.Player.prototype;

  // Current W3C Spec
  // http://dvcs.w3.org/hg/fullscreen/raw-file/tip/Overview.html#api
  // Mozilla Draft: https://wiki.mozilla.org/Gecko:FullScreenAPI#fullscreenchange_event
  if (document.cancelFullscreen !== undefined) {
    requestFn = "requestFullscreen";
    cancelFn = "exitFullscreen";
    eventName = "fullscreenchange";
    isFullScreen = "fullScreen";

  // Webkit (Chrome/Safari) and Mozilla (Firefox) have working implementaitons
  // that use prefixes and vary slightly from the new W3C spec. Specifically, using 'exit' instead of 'cancel',
  // and lowercasing the 'S' in Fullscreen.
  // Other browsers don't have any hints of which version they might follow yet, so not going to try to predict by loopeing through all prefixes.
  } else {

    _V_.each(["moz", "webkit"], function(prefix){

      // https://github.com/zencoder/video-js/pull/128
      if ((prefix != "moz" || document.mozFullScreenEnabled) && document[prefix + "CancelFullScreen"] !== undefined) {
        requestFn = prefix + "RequestFullScreen";
        cancelFn = prefix + "CancelFullScreen";
        eventName = prefix + "fullscreenchange";

        if (prefix == "webkit") {
          isFullScreen = prefix + "IsFullScreen";
        } else {
          _V_.log("moz here")
          isFullScreen = prefix + "FullScreen";
        }
      }

    });

  }

  if (requestFn) {
    _V_.support.requestFullScreen = {
      requestFn: requestFn,
      cancelFn: cancelFn,
      eventName: eventName,
      isFullScreen: isFullScreen
    };
  }

})();