Adds expressInstall functionality to Y.SWF, using expressInstall.swf from the SWFObject project

swf-expressInstall.js

/*global YUI*/
/**
 * Adds expressInstall functionality to SWF
 * 
 * @module swf-expressinstall
 * @requires swf
 */
YUI.add("swf-expressinstall", function (Y) {
  "use strict";
  var handles = {},
    swfURL = Y.config.groups.nfl.base + "swf-expressinstall/expressInstall.swf";

/**
 * Adds expressInstall functionality to SWF
 * @class SWF
 */
  /**
   * @method expressInstall
   * @param {String|Node} node Node within which to render the expressInstall SWF.
   * @return {String} handle for the swf.
   * @static
   */
  Y.mix(Y.SWF, {
    expressInstall: function (ref) {
      // handle SWF Upgrade
      var node = Y.one(ref),
        nodeId,
        swf;
      if (node) {
        nodeId = node.get("id");
        swf = new Y.SWF(Y.one(node), swfURL, {
          fixedAttributes: {
            allowScriptAccess: 'always'
          },
          flashVars: {
            MMredirectURL: Y.config.win.location.href,
            MMdoctitle: Y.config.doc.title,
            // This logic is taken from SWFObject and translated to YUI 
            // http://code.google.com/p/swfobject/
            MMplayerType: Y.UA.ie && /win/i.test(Y.config.win.navigator.platform || Y.UA.userAgent) ? "ActiveX" : "PlugIn"
          }
        });
        handles[nodeId] = Y.bind("destroy", swf);
      }
      return nodeId;
    },
    /**
     * @method removeExpressInstall
     * @param {String} handle a SWF handle returned from Y.SWF.expressInstall.
     * @static
     */
    removeExpressInstall: function (handle) {
      var fn = handles[handle];
      if (Y.Lang.isFunction(fn)) {
        delete handles[handle];
        fn();
      }
    }
  });

  // adds a destructor method to Y.SWF
  if (!Y.Lang.isFunction(Y.SWF.prototype.destroy)) {
    Y.SWF.prototype.destroy = function () {
      this.detachAll();
      this._swf.remove(true);
      delete this._swf;
      delete Y.SWF._instances[this._id];
    };
  }

}, "3.4.1", {
  group: "nfl",
  requires: ["swf"]
});