/* This is the constructor of the widget. It's called by the

   initialization routine.

*/

IriSP.TutorialWidget = function(Popcorn, config, Serializer) {

  IriSP.Widget.call(this, Popcorn, config, Serializer);

  /* After having called the parent constructor, a couple objects are defined for us

     this._config contains all the configuration options passed in the config.

     this._id holds the id of the div where the widget has to draw himself

     this._serializer is an object containing the metadata that was request in the configuration 

     options.

  */

}

/* We need to create assign new prototype to TutorialWidget.prototype

   because we're going to declare methods in it */

IriSP.TutorialWidget.prototype = new IriSP.Widget();

/* This method draws the widget - it's called automatically by

   the initialization script.

 */

IriSP.TutorialWidget.prototype.draw = function() {

    /* this.selector is a shortcut to jQuery(widget.container) - it's used everywhere in the code */

    this.selector.html('Hello');

    this.selector.css({

            "text-align" : "center",

            "padding": "10px 0",

            "font-size" : "14px"

        });

    /* The following is a list of idioms found throughout the code */

    var templ = IriSP.player_template; /* get the compiled template code for the player.html template - 

                                          templates are located in the src/templates directory and are automatically

                                          compiled and made available in the compiled file as IriSP.templatename_template (without the .html)

                                        */

    var res = IriSP.templToHTML(IriSP.player_template, {var: 1}); /* format the template with the variable 'var' */

    /* this._Popcorn is a handle on the Popcorn object. It exposes the API which is documented

       here : http://popcornjs.org/api

       currentTime is a Popcorn method that either returns or changes the currentTime.

       */

    var time = this._Popcorn.currentTime();    

    /* Listen to the IriSP.TutorialWidget.foo message. By convention, the name of

       a message is IriSP.widgetName.messageName */

    this._Popcorn.listen("IriSP.TutorialWidget.foo",

                          /* IriSP.wrap preserves this in the callback */

                          IriSP.wrap(this, this.fooMessageHandler));

    /* send a message, passing an object allong */

    this._Popcorn.trigger("IriSP.TutorialWidget.foo", {name: "Dave", surname: "Grohl"});

};

/* Handler for the IriSP.foo message */

IriSP.TutorialWidget.prototype.fooMessageHandler = function(param) {

  // show that this is preserved correctly.

  console.log(this !== window, this);

  this.selector.append(IriSP.templToHTML("<h2>{{ name }}, {{ surname }}</h2>", {name: param.name, surname: param.surname}));

  return;

};