dojo.provide("dojox.analytics.plugins.mouseOver");

dojox.analytics.plugins.mouseOver = new (function(){
	this.watchMouse = dojo.config["watchMouseOver"] || true;
	this.mouseSampleDelay = dojo.config["sampleDelay"] || 2500;
	this.addData = dojo.hitch(dojox.analytics, "addData", "mouseOver");
	this.targetProps = dojo.config["targetProps"] || ["id","className","localName","href", "spellcheck", "lang", "textContent", "value" ];

	this.toggleWatchMouse=function(){
		if (this._watchingMouse){
			dojo.disconnect(this._watchingMouse);
			delete this._watchingMouse;
			return;
		}	
		dojo.connect(dojo.doc, "onmousemove", this, "sampleMouse");
	}

	if (this.watchMouse){
		dojo.connect(dojo.doc, "onmouseover", this, "toggleWatchMouse");	
		dojo.connect(dojo.doc, "onmouseout", this, "toggleWatchMouse");
	}

	this.sampleMouse=function(e){
		if (!this._rateLimited){
			this.addData("sample",this.trimMouseEvent(e));	
			this._rateLimited=true;
			setTimeout(dojo.hitch(this, function(){
				if (this._rateLimited){
					//this.addData("sample", this.trimMouseEvent(this._lastMouseEvent));
					this.trimMouseEvent(this._lastMouseEvent);
					delete this._lastMouseEvent;
					delete this._rateLimited;
				}
			}), this.mouseSampleDelay);
		}	
		this._lastMouseEvent = e;
		return e;
	}

	this.trimMouseEvent=function(e){
		var t = {};
		for (var i in e){
			switch(i){
				//case "currentTarget":
				case "target":
				//case "originalTarget":
				//case "explicitOriginalTarget":
					var props=this.targetProps;
					t[i]={};
					//console.log(e, i, e[i]);
					for(var j=0;j<props.length;j++){
						if(dojo.isObject(e[i]) && props[j] in e[i]){
							 
							if (props[j]=="text" || props[j]=="textContent"){
								if (e[i]["localName"] && (e[i]["localName"]!="HTML")&&(e[i]["localName"]!="BODY")){
									t[i][props[j]]=e[i][props[j]].substr(0,50);
								}
							}else{
								t[i][props[j]]=e[i][props[j]];
							}
						}
					}
					break;
				//case "clientX":
				//case "clientY":
				//case "pageX":
				//case "pageY":
				//case "screenX":
				//case "screenY":
				case "x":
				case "y":
					if (e[i]) {
						//console.log("Attempting: " + i);
						var val = e[i];
						//console.log("val: " +  val); console.log(i + "e of i: " + val);
						t[i]=val + '';							
					}
					break;
				default: 
					//console.log("Skipping: ", i);
					break;
			}
		}
		return t;
	}	
})();
