main_controller.js

// Copyright 2013 Google Inc. All Rights Reserved.
// You may study, modify, and use this example for any purpose.
// Note that this example is provided "as is", WITHOUT WARRANTY
// of any kind either expressed or implied.

var MainController = function(playerController) {
  this.console = document.getElementById('console');
  this.playButton = document.getElementById('playpause');
  this.playButton.addEventListener(
      'click',
      this.bind(this, this.onClick),
      false);

  this.playing = false;
  this.adsActive = false;
  this.adsDone = false;

  this.playerController = playerController;
  this.adsController = new AdsController(this, this.playerController);
  this.adTagUrl = 'http://pubads.g.doubleclick.net/gampad/ads?sz=400x300&iu=%2F6062%2Fiab_vast_samples&ciu_szs=300x250%2C728x90&impl=s&gdfp_req=1&env=vp&output=xml_vast2&unviewed_position_start=1&url=[referrer_url]&correlator=[timestamp]&cust_params=iab_vast_samples%3Dlinear';
};

MainController.prototype.bind = function(thisObj, fn) {
  return function() {
    fn.apply(thisObj, arguments);
  };
};

MainController.prototype.onClick = function() {
  if (!this.adsDone) {

    // The user clicked/tapped - inform the ads controller that this code
    // is being run in a user action thread.
    this.adsController.initialUserAction();
    // At the same time, initialize the content player as well.
    // When content is loaded, we'll issue the ad request to prevent it
    // from interfering with the initialization.
    // See https://developers.google.com/interactive-media-ads/docs/sdks/html5/v3/ads#iosvideo
    // for more information.
    this.playerController.preloadContent(this.bind(this, this.loadAds));
    this.adsDone = true;
    return;
  }

  if (this.adsActive) {
    if (this.playing) {
      this.adsController.pause();
    } else {
      this.adsController.resume();
    }
  } else {
    if (this.playing) {
      this.playerController.pause();
    } else {
      this.playerController.play();
    }
  }

  this.playing = !this.playing;

  this.updateChrome();
};

MainController.prototype.updateChrome = function() {
  if (this.playing) {
    this.playButton.textContent = 'II';
  } else {
    // Unicode play symbol.
    this.playButton.textContent = String.fromCharCode(9654);
  }
};

MainController.prototype.log = function(message) {
  console.log(message);
  this.console.innerHTML = this.console.innerHTML + '<br/>' + message;
};

MainController.prototype.resumeAfterAd = function() {
  this.playerController.play();
  this.adsActive = false;
  this.updateChrome();
};

MainController.prototype.pauseForAd = function() {
  this.adsActive = true;
  this.playing = true;
  this.playerController.pause();
  this.updateChrome();
};

MainController.prototype.adClicked = function() {
  this.playing = false;
  this.updateChrome();
};

MainController.prototype.loadAds = function() {
  this.adsController.requestAds(this.adTagUrl);
};