var Collector = Class.create({
initialize: function(eleID) {
	this.ID_=eleID;
	this.root=$(eleID);
	this.body=$("BODY_"+eleID);
	this.optButton=$("OPT_"+eleID);
	this.clearButton=$("CLEAR_"+eleID);
	this.root.JSControl = this;

	var parent=AControl.GetParentWindowInstanceID(this.root);
	this.sSrc=this.body.readAttribute('src');
	this.separator=this.body.readAttribute('separator');
	if(!this.separator) this.separator='; ';
	var sdp=this.body.readAttribute('duplicates');
	this.bAllowDuplicates=(sdp=='yes' || sdp=='true');

	this.visibility=this.body.readAttribute('visibility');
	if(!this.visibility) this.visibility='yes';

	this.value=[];
	this.show=[];
	var rets=this.body.readAttribute('rets').split(' ');
	for(var i=0; i<rets.length; ++i) {
		var inExt=rets[i].split('=');
		if(inExt.length==0) continue;
		if(!this.rets) this.rets={};
		if(inExt.length==1) {
			this.rets[inExt[0]]=inExt[0];
		}
		else {
			this.rets[inExt[0]]=inExt[1];
		}
		this.show.push(inExt[0]);
	}
	var show=this.body.getAttribute('show');
	if(show && typeof(show)=='string') this.show=show.split(' ');
	this.removeDataCallback=this.RemoveData.bind(this);

	this.args={
		nodeID: eleID,
		sURL: this.sSrc,
		sParent: parent,
		initialWidth: document.viewport.getWidth()/3,
		initialHeight: 200,
		bFitToScreen: true
	};
	if(this.visibility=='yes') {
		this.optButton.observe('click', this.Open.bind(this));
		this.optButton.observe('keyup', this.OptKeyUp.bind(this));
		this.clearButton.observe('click', this.ClearAll.bind(this));
		this.clearButton.observe('keyup', this.ClearKeyUp.bind(this));
	}
	new AEvent("WM_INIT", {}, this);
},
Open: function() {
	if (this.bOpen) return; // if popup already open, do not open another
	this.bOpen = true;

	var dim=document.viewport.getDimensions();
	var offset=this.optButton.viewportOffset();

	this.args.sURL=this.sSrc;
	this.args.initialX=offset.left;
	this.args.initialWidth=dim.width-offset.left-5;
	if(this.args.initialWidth<400) this.args.initialWidth=400;

	var botDistance=dim.height-offset.top-this.optButton.offsetHeight;
	if(botDistance>=400 || offset.top<=botDistance) { // popup down
		this.args.initialY=offset.top+this.optButton.offsetHeight;
		this.args.initialHeight=botDistance-5; // leave 5px to the screen bottom
		if(this.args.initialHeight<400) this.args.initialHeight=400;
	}
	else { //popup up
		this.args.initialHeight=offset.top-5; // leave 5px to the screen bottom
		if(this.args.initialHeight<400) this.args.initialHeight=400;
		this.args.initialY=offset.top-this.args.initialHeight;
	}

	//this.args.bFitToScreen=true;
	this.args.bTotalWidthHeight=true;
	this.popupWin = new CollectorPopup(this.args);
	this.popupWin.Subscribe("WM_BACK", this.OnWMBack, this);
	this.popupWin.Subscribe("WM_POPUP_RETURN", this.OnReturn, this);

	return this.popupWin;
},
OptKeyUp: function(evt) {
	var event = Event.extend(evt || window.event);
	if (evt.altKey || evt.ctrlKey) return;

	var key = event.keyCode;
	if (key == 13 || key == 32) this.Open(); else return;
	StopEvent(event);
	return false;
},
ClearKeyUp: function(evt) {
	var event = Event.extend(evt || window.event);
	if (evt.altKey || evt.ctrlKey) return;

	var key = event.keyCode;
	if (key == 13 || key == 32) this.ClearAll(); else return;
	StopEvent(event);
	return false;
},
OnReturn: function(oEvent) {
	if (this.rets && oEvent.Data().args) {
		var args=oEvent.Data().args;
		var data={};
		for(var p in this.rets) {
			if(args[this.rets[p]]) {
				data[p]=args[this.rets[p]];
			}
		}
		var i=0;
		if(!this.bAllowDuplicates) for(; i<this.value.size(); ++i) {
			var bMatched=true;
			for(var pp in this.value[i]) {
				if(data[pp].toString()!=this.value[i][pp].toString()) {
					bMatched=false;
					break;
				}
			}
			if(bMatched) break;
		}
		if(this.bAllowDuplicates || i>=this.value.size()) {
			this.value.push(data);
			this.RefreshContent();
			new AEvent("CHANGE", {}, this);
			this.body.scrollTop=100000;
		}
	}
	oEvent.Stop();
},
RemoveData: function(evt) {
	this.value.splice(evt.element().parentNode.previousSiblings().length, 1);
	this.RefreshContent();
	new AEvent("CHANGE", {}, this);
},
ClearAll: function() {
	this.value.length=0;
	this.RefreshContent();
	new AEvent("CHANGE", {}, this);
},
RefreshContent: function() {
	var content=" ";
	for(var pos=0; pos<this.value.length; ++pos) {
		var data=this.value[pos];
		var tip='';
		for(e in data) tip+=data[e]+" ";
		var sSpan='<span class="CollectorData" position="'+String(pos)+'" title="'+tip+'">';
		for(var i=0; i<this.show.length; ++i) {
			if(data[this.show[i]]) sSpan+=data[this.show[i]];
			sSpan+=' ';
		}
		if(this.visibility=='yes') sSpan+='<span class="CollectorDataRemover"> </span>';
		sSpan+='</span>'+this.separator;
		content+=sSpan;
	}
	this.body.innerHTML=content;

	if(this.visibility=='yes') {
		for(var pos=0; pos<this.value.length; ++pos) {
			$(this.body.children[pos]).childElements()[0].observe('click', this.removeDataCallback);
		}
//		if(!Prototype.Browser.IE) GWindowManager.OnResize(); // IE is too slow :-(
	}
},
OnWMBack: function(oEvent){
	oEvent.Stop();
	this.bOpen=false;
},
Value: function() {
	var v = this.value;
	if( typeof v == "object" && v instanceof Array && v.length == 0 ) return null;
	else return v;
},
SetValue: function(value) {
	if( typeof(value.IsNull)=="function" && value.IsNull() ) {
		if(this.value.size && this.value.size==0) return;
		this.value=[];
		this.RefreshContent();
	}
	else {
		if(CompareObjects(this.value, value)) return;
		this.value=value;
		this.RefreshContent();
	}
},
SetAttribute: function(sName, sValue) {
	if(sName=='src' && sValue!=this.sSrc) {
		this.sSrc=sValue;
	}
},
SetTabOrder: function(nTabBase) {
	if(this.optButton) this.optButton.tabIndex=nTabBase;
	if(this.clearButton) this.clearButton.tabIndex=nTabBase+1;
	return nTabBase+2;
},
ID: function() { return this.ID_; }
});


var CollectorPopup = Class.create(AWindow, {
IsPopup: true,
initialize: function($super, args) {
	args.fCloseCallback = this.OnClose.bind(this);
	args.fAfterResizeCallback = this.OnPopupResize.bind(this);
	args.modal=true;
	this.oPopup = new APopup(args);
	args.sControlID = this.oPopup.ContentsID();

	this.Subscribe("WM_POPUP_RETURN", this.OnReturn, this);

	$super(args); // constructs AWindow
},
OnClose: function(oPopup) {
	new AEvent("WM_BACK", {}, this);
	oPopup.Close();
	this.Die();
},
Load: function($super) {
	$super();
	this.oPopup.SetTitle(this.sTitle_);
	this.oPopup.Redraw();
	if (this.fAfterLoadCallback) this.fAfterLoadCallback(this);
},
Popup: function() { return this.oPopup; },
OnPopupResize: function(oPopup) {
	// TODO: very BAD behavior! Popups resizing must not affect entire WindowManager.
	// There must be implemented descending resizing scheme when parents notify children about resizing.
	GWindowManager.OnResize();
},
Focus: function() {
	if (this.Focused()) {
		//LogL("PopupCollector is already focused. ");
		return;
	}
	GWindowManager.ClearTabOrder(FS_NOTFOCUSED);
	this.SetTabOrder(0);
	var r=this.focusFirst(this.HTML, SKIP_MYSELF);
	//LogL("Popup collector $$"+this.ID()+"$$ focused with result: "+r);
	this.bFocused=true;
},
Focused: function() { return this.bFocused; }
});