var itkMiniAutoCompleteModul={
	file: "miniautocomplete.js",
	require: [
	]
}

function ItkMiniAutoComplete(inputField,url,handler,ajaxhandler,opts) {
	if (!opts) opts={};
	this.multiple=false;
	if (typeof(inputField)=="object" && inputField.length>0) {
		this.inputField=$A2(inputField);
		this.multiple=true;
	}
	else this.inputField=[$2(inputField)];
	this.handler=handler;
	this.url=url;
	this.cursorpos=-1;
	this.lastValue=""; //letzter Inhalt des Eingabefeldes
	this.length=0;
	this.divlist=[];
	this.hightlight=-1;
	this.ajaxhandler=ajaxhandler;
	this.ajaxdonehandler=opts.ajaxdonehandler;
	this.selectFirst=itkBool(opts.selectFirst,false);
	this.minZeichen=itkInt(opts.minZeichen,2);
	this.minZeichenEnter=itkInt(opts.minZeichenEnter,opts.minZeichen);
	this.emptyMessage=itkDefault(opts.emptyMessage,null);
	this.minZeichenMessage=itkDefault(opts.minZeichenMessage,null);
	this.ladeMessage=itkDefault(opts.ladeMessage,"Liste wird geladen");
	this.sendOnEnter=itkBool(opts.sendOnEnter,false);
	this.speedFaktor=itkInt(opts.speedFaktor,2);
	this.zIndex=itkInt(opts.zIndex,null);
	this.hasFocus=false;
	this.copyFields=itkBool(opts.copyFields,false); // Feld wird aus ret[2][0] kopiert.
	this.clearOnBlur=itkBool(opts.clearOnBlur,false);
	this.allowEmpty=itkBool(opts.allowEmpty,false);
	this.clearOnFocus=itkBool(opts.clearOnFocus,false);
	this.ignoreEnter=itkBool(opts.ignoreEnter,false);
	
	this.currentData=null; // ergebnis des letzten requests
	
	this.getValue=function() {
		if (!this.multiple) return this.inputField[0].value;
		var ret=[];
		for (var i=0;i<this.inputField.length;i++) {
			ret.push(this.inputField[i].value);
		}
		return ret;
	}
	
	this.joinValue=function() {
		if (!this.multiple) return this.inputField[0].value;
		var h=this.getValue();
		return h.join("|");
	}
	
	this.setData=function(name,val) {
		for (var i=0;i<this.inputField.length;i++) {
			this.inputField[i][name]=val;
		}
	}
	
	this.init=function() {
		this.bindKeyDownEvent=this.keyDown.itkBindAsEventListener(this);
		this.bindBlur=this.blurHandler.itkBindAsEventListener(this);
		this.bindFocus=this.focusHandler.itkBindAsEventListener(this);
		for (var i=0;i<this.inputField.length;i++) {
			var f=this.inputField[i];
			f.itkAutoComplete=this;
			if (this.url) {
				itkObserve(f,"keydown",this.bindKeyDownEvent);
				itkObserve(f,"change",this.bindKeyDownEvent);
			}
			itkObserve(f,"blur",this.bindBlur);
			itkObserve(f,"focus",this.bindFocus);
		}
	}
	
	this.reset=function() {
		this.cancelBlur();
		this.lastValue=this.joinValue();
		if (this.output) itkHide(this.output);
	}
	
	this.destroy=function() {
		for (var i=0;i<this.inputField.length;i++) {
			var f=this.inputField[i];
			if (url) {
				itkStopObserving(f,"keydown",this.bindKeyDownEvent);
				itkStopObserving(f,"change",this.bindKeyDownEvent);
			}
			itkStopObserving(f,"blur",this.bindBlur);
			itkStopObserving(f,"focus",this.bindFocus);
			f.itkAutoComplete=null;
		}
	}
	this.focusHandler=function(e) {
		this.hasFocus=true;
		this.currentField=itkEventSrc(e);
		if (this.clearOnFocus) {
			this.currentField.value="";
			this.clearOnFocus=false;
		}
		if (!this.inputField[0].itkSelected) {
			this.showCurrent();
			this.layoutOutput();
		}
	}
	this.blurHandler=function(e) {
		this.hasFocus=false;
		this.cancelBlur();
		if (this.output) this.blurTimer=window.setTimeout(this.hideOutput.itkBind(this),250);
	}
	this.cancelBlur=function() {
		if (this.blurTimer) window.clearTimeout(this.blurTimer);
		if (this.timer) window.clearTimeout(this.timer);
		this.timer=null;
		this.blurTimer=null;
	}
	this.hideOutput=function(e) {
		this.blurTimer=null;
		if (this.output) itkHide(this.output);
		if (this.clearOnBlur) {
			if (this.allowEmpty && this.inputField.length==1 && this.inputField[0].value=="") {
				this.inputField[0].itkSelected=null;
			}
			else {
				for (var i=0;i<this.inputField.length;i++) {
					if (!this.inputField[i].itkSelected) 
						this.inputField[i].itkSelected=this.inputField[i].itkLastSelected;
					if ((this.copyFields || this.multiple) && this.inputField[i].itkSelected) {
						var d=this.inputField[i].itkSelected[2];
						this.inputField[i].value=d ? d[i] : "";
					}
					else if (this.inputField[i].itkSelected) {
						this.inputField[i].value=this.inputField[i].itkSelected[0] || "";
					}
					else this.inputField[i].value="";
				}
			}
		}
	}
	
	this.calcSpeed=function() {
		var now=new Date().getTime();
		var avg=null;
		if (!this.speed) this.speed={
			last:null,
			list:[],
			init:function() { this.list=[]; this.last=null; }
		}
		if (this.speed.last) {
			var dt=now-this.speed.last;
			if (dt<1000) {
				this.speed.list.push(dt);
				if (this.speed.list.length>10) this.speed.list.shift();
				var sum=0;
				for (var i=0;i<this.speed.list.length;i++) sum+=this.speed.list[i];
				avg=sum/this.speed.list.length;
			}
			else {
				this.speed.list=[];
			}
		}
		this.speed.last=now;
		return avg;
	}
	
	this.checkChange=function() {
		this.checkChangeTimer=null;
		if (this.output && this.joinValue()!=this.lastValue 
			&& (!this.currentData || !this.currentData.printing)) {
			itkHide(this.output);
		}
	}
	
	this.setFocus=function(field) {
		field.focus();
	}
	
	this.keyDown=function(e) {
	 	var inputField=itkEventSrc(e) || this.currentField || this.inputField[0];
		try {
			inputField.focus();
		}
		catch (e) {
			window.setTimeout(this.setFocus.itkBind(this,inputField),3);
		}
		this.hasFocus=true;
		this.currentField=inputField;
		if (this.output && !this.checkChangeTimer) {
			this.checkChangeTimer=window.setTimeout(this.checkChange.itkBind(this),5);
		}
		if (this.timer && !e.noClear) {
			window.clearTimeout(this.timer);
			this.timer=null;
		}
		if (e && this.output && (e.keyCode==40 || e.keyCode==38)) { // cursor down/up
			if (!e.noShow) this.showCurrent({noClear:e.noClear,noKeyDown:true});
			if (e.keyCode==40) { // down
				this.cursorpos++;
				if (this.cursorpos>=this.length) this.cursorpos=this.length-1;
			}
			else if (e.keyCode==38) { // up
				if (this.cursorpos==-1) this.cursorpos=this.length-1;
				else if (this.cursorpos>0) this.cursorpos--;
				if (this.cursorpos<0) this.cursorpos=-1;
			}
			if (this.cursorpos>=0 && this.cursorpos<=this.length-1) {
				if (this.highlight>=0 && this.highlight<=this.length-1)
					itkRemoveClassName(this.divlist[this.highlight],"highlight");
				itkAddClassName(this.divlist[this.cursorpos],"highlight");
				this.highlight=this.cursorpos;
			}
		}
		else if (e && this.output && e.keyCode==27) { // esc
			itkStopEvent(e);
			itkHide(this.output);
			this.cursorpos=-1;
		}
		else if (e && e.keyCode==13 && this.running && (this.selectFirst || this.sendOnEnter)) {
			itkStopEvent(e);
			return false;
		}
		else if (e && this.output && itkVisible(this.output) 
			&& ((e.keyCode==13 && !this.ignoreEnter) || e.keyCode==9)) {
			if (this.cursorpos==-1) {
				itkHide(this.output);
				if (!e.noClear) this.cancelBlur();
			}
			else this.select(this.divlist[this.cursorpos]);
		}
		else {
			var avg=this.calcSpeed() || 500;
			if (avg>1000) avg=1000;
			if (e.keyCode==13 && this.sendOnEnter) {
				itkStopEvent(e);
				this.sendRequest(true);
				return false;
			}
			else
				this.timer=window.setTimeout(this.sendRequest.itkBind(this,false),avg*this.speedFaktor);
			
			if ((e=="change" || e && e.keyCode==13 && !this.ignoreEnter) && this.running) {
				itkStopEvent(e);
				return true;
			}
			if (e && ((e.keyCode==13 && !this.ignoreEnter) || e.keyCode==9)) {
				if (!e.noClear) this.cancelBlur();
			}
		}
		return true;
	}
	
	this.select=function(div) {
		itkHide(this.output);
		this.cursorpos=-1;
		this.lastValue=div.itkData[0];
		if (this.multiple || this.copyFields) { 
			for (var i=0;i<this.inputField.length;i++) {
				var f=this.inputField[i];
				if (div.itkData[2]) f.value=div.itkData[2][i];
				f.itkSelected=div.itkData;
			}
		}
		else {
			this.inputField[0].value=div.itkData[0];
			this.inputField[0].itkSelected=div.itkData;
		}
		if (this.speed) this.speed.init();
		this.currentField.focus();
		if (this.handler) window.setTimeout(this.handler.itkBind({},div.itkData,this.multiple ? this.inputField : this.inputField[0],this),5);
	}
	
	this.sendRequest=function(force) {
		if (this.running && this.running>(new Date().getTime()-30*1000)) {
			this.waiting=true;
			return;
		}
		this.running=false;
		this.waiting=false;
		this.timer=null;
		var val=this.joinValue();
		if (val!=this.lastValue) {
			for (var i=0;i<this.inputField.length;i++) {
				if (this.inputField[i].itkSelected) this.inputField[i].itkLastSelected=this.inputField[i].itkSelected;
				this.inputField[i].itkSelected=null;
			}
		}
		var minZeichen=force ? this.minZeichenEnter : this.minZeichen;
		var n=this.inputField.length;
		if ((val!=this.lastValue || force) && val.length>=minZeichen+n-1) {
			this.print(this.ladeMessage);
			this.running=new Date().getTime();
			this.lastValue=val;
			if (this.output && !this.currentData.printing) itkHide(this.output); 
			var data=this.getValue();
			if (this.ajaxhandler) 
				this.ajaxhandler(data,this.doneSuche.itkBind(this));
			else 
				ajaxRequest(this.url,{query:data},this.doneSuche.itkBind(this));
		}
		if (val.length<minZeichen) {
			this.currentData=null;
			this.prePrintData=null;
			if (this.output) itkHide(this.output);
			this.lastValue="";
			if (this.minZeichenMessage) this.print(this.minZeichenMessage);
		}
	}
	
	this.print=function(text) {
		var data={list:[[text]],printing:true};
		this.printing=true;
		this.doneSuche(data);
	}
	
	this.showCurrent=function(opts) {
		if (!opts) opts={};
		if (!opts.noClear) this.cancelBlur();
		if (this.printing) {
			if (this.prePrintData) this.currentData=this.prePrintData;
			if (this.currentData)
				this.doneSuche(this.currentData);
			else this.sendRequest(false);
		}
		else if (this.output && this.currentData && this.currentData.list
			&& this.currentData.list.length>0) {
			if (this.joinValue()==this.lastValue) {
				itkShow(this.output);
				if (this.selectFirst && this.cursorpos==-1 && !opts.noKeyDown) {
					this.keyDown({keyCode:40,noClear:true,noShow:true});
				}
			}
			else this.sendRequest(false);
		}
		else {
			this.sendRequest(!itkDefined(this.output));
		}
	}
	
	this.doneSuche=function(ret) {
		if (!ret) {
			this.currentData=null;
			if (this.output) itkHide(this.output);
			return;
		}
		if (ret.printing && this.currentData && !this.currentData.printing)
			this.prePrintData=this.currentData;
		this.currentData=ret;
		if (!ret.printing) {
			this.printing=false;
			this.running=false;
			this.prePrintData=null;
			if (this.waiting) {
				this.waiting=false;
				this.sendRequest(false);
			}
			else if (this.ajaxdonehandler) this.ajaxdonehandler(ret);
		}
		this.cursorpos=-1;
		if (!this.output) {
			this.output=document.createElement("DIV");
			this.output.style.position="absolute";
			this.output.style.left="-1000px";
			this.output.style.top="-10000px";
			itkHide(this.output);
			this.output.className="miniautocomplete_out";
			this.output.style.overflow="auto";
			if( itkDefined(this.zIndex) )
				this.output.style.zIndex = this.zIndex;
			document.body.appendChild(this.output);
		}
		else {
			itkHide(this.output);
		}
		if (ret.list && ret.list.length>0) {
			var val=this.joinValue();
			if (!ret.printing && (val!=this.lastValue
				|| itkDefined(ret.search) && val!=ret.search)) {
				itkHide(this.output);
			}
			else {
				this.output.innerHTML="";
				this.length=0;
				this.divlist=[];
				for (var i=0;i<ret.list.length;i++) {
					var div=document.createElement("DIV");
					div.appendChild(document.createTextNode(ret.list[i][0]));
					div.className="miniautocomplete_listelem";
					div.itkData=ret.list[i];
					var listen=false;
					if (ret.list[i].length==1) {
						div.className+=" miniautocomplete_novalue";
						div.itkNoValue=true;
					}
					else {
						this.length++;
						listen=true;
					}
					this.output.appendChild(div);
					this.divlist.push(div);
					if (listen) itkObserve(div,"click",this.select.itkBind(this,div));
				}
				this.layoutOutput();
				if (this.selectFirst && !ret.printing && this.hasFocus && this.cursorpos==-1) {
					this.keyDown({keyCode:40,noClear:true});
				}
			}
		}
		else if (this.emptyMessage) {
			this.print(this.emptyMessage);
		}
		else {
			this.output.innerHTML="";
		}
	}
	
	this.layoutOutput=function() {
		if (!this.output) return;
		var page=itkGetPageSize();
		if (!this.currentField) this.currentField=this.inputField[0];
		var inpos=itkGetSize(this.currentField);
		itkSetPos(this.output,-1000,-10000,"","");
		itkShow(this.output);
		var outpos=itkGetSize(this.output);
		var y=inpos.y+inpos.height;
		var height=outpos.height;
		if (y+height+4>page.y+page.height) {
			y=inpos.y-outpos.height-2;
			if (y<page.y+2) {
				y=inpos.y+inpos.height;
				height=page.y+page.height-y-4;
			}
		}
		itkSetSize(this.output,null,height);
		outpos=itkGetSize(this.output);
		var x=inpos.x;
		var width=outpos.width;
		if (x+width+4>page.x+page.width) {
			x=inpos.x+inpos.width-outpos.width-2;
			if (x<page.x+2) {
				x=inpos.x;
				width=page.x+page.width-x-4;
				height+=16;
			}
		}
		if (!this.hasFocus && !this.currentData.printing) {
			itkHide(this.output);
		}
		itkSetPos(this.output,x,y,width,height);
	}
	
	this.init();
}

try {
	itkModul.loadDone(itkMiniAutoCompleteModul);
}
catch (e) {}