source: Dev/trunk/src/client/dojox/timing/_base.js @ 529

define(["dojo/_base/kernel", "dojo/_base/lang"], function(dojo){
        dojo.experimental("dojox.timing");
        dojo.getObject("timing", true, dojox);

        dojox.timing.Timer = function(/*int*/ interval){
                // summary:
                //              Timer object executes an "onTick()" method repeatedly at a specified interval.
                //              repeatedly at a given interval.
                // interval:
                //              Interval between function calls, in milliseconds.
                this.timer = null;
                this.isRunning = false;
                this.interval = interval;

                this.onStart = null;
                this.onStop = null;
        };

        dojo.extend(dojox.timing.Timer, {
                onTick: function(){
                        // summary:
                        //              Method called every time the interval passes.  Override to do something useful.
                },
                        
                setInterval: function(interval){
                        // summary:
                        //              Reset the interval of a timer, whether running or not.
                        // interval:
                        //              New interval, in milliseconds.
                        if (this.isRunning){
                                window.clearInterval(this.timer);
                        }
                        this.interval = interval;
                        if (this.isRunning){
                                this.timer = window.setInterval(dojo.hitch(this, "onTick"), this.interval);
                        }
                },
                
                start: function(){
                        // summary:
                        //              Start the timer ticking.
                        // description:
                        //              Calls the "onStart()" handler, if defined.
                        //              Note that the onTick() function is not called right away,
                        //              only after first interval passes.
                        if (typeof this.onStart == "function"){
                                this.onStart();
                        }
                        this.isRunning = true;
                        this.timer = window.setInterval(dojo.hitch(this, "onTick"), this.interval);
                },
                
                stop: function(){
                        // summary:
                        //              Stop the timer.
                        // description:
                        //              Calls the "onStop()" handler, if defined.
                        if (typeof this.onStop == "function"){
                                this.onStop();
                        }
                        this.isRunning = false;
                        window.clearInterval(this.timer);
                }
        });
        return dojox.timing;
});