source: Dev/trunk/src/client/dojox/app/Controller.js

define(["dojo/_base/lang", "dojo/_base/declare", "dojo/on"], function(lang, declare, on){
        // module:
        //              dojox/app/Controller
        // summary:
        //              Bind events on dojox/app application's dojo/Evented instance or document.

        return declare("dojox.app.Controller", null, {
                constructor: function(app, events){
                        // summary:
                        //              bind events on application dojo/Evented instance.
                        //              bind css selector events on document.
                        //
                        // app:
                        //              dojox/app application instance.
                        // events:
                        //              {event : handler}

                        this.events = this.events || events;
                        this._boundEvents = [];
                        this.app = app;
                },

                bind: function(evented, event, handler){
                        // summary:
                        //              Bind event on dojo/Evented instance, document, domNode or window.
                        //              Save event signal in controller instance. If no parameter is provided
                        //              automatically bind all events registered in controller events property.
                        //
                        // evented: Object
                        //              dojo/Evented instance, document, domNode or window
                        // event: String
                        //              event
                        // handler: Function
                        //              event handler
                        if(arguments.length == 0){
                                if(this.events){
                                        for(var item in this.events){
                                                if(item.charAt(0) !== "_"){//skip the private properties
                                                        this.bind(this.app, item, lang.hitch(this, this.events[item]));
                                                }
                                        }
                                }
                        }else{
                                var signal = on(evented, event, handler);
                                this._boundEvents.push({
                                        "event": event,
                                        "evented": evented,
                                        "signal": signal
                                });
                        }
                        return this;
                },

                unbind: function(evented, event){
                        // summary:
                        //              remove a binded event signal.
                        //
                        // evented: Object
                        //              dojo/Evented instance, document, domNode or window
                        // event: String
                        //              event

                        var len = this._boundEvents.length;
                        for(var i = 0; i < len; i++){
                                if((this._boundEvents[i]['event'] == event) && (this._boundEvents[i]['evented'] == evented)){
                                        this._boundEvents[i]['signal'].remove();
                                        this._boundEvents.splice(i, 1);
                                        return;
                                }
                        }
                        console.warn("event '"+event+"' not bind on ", evented);
                        return this;
                }
        });
});