ig_webcombo3_1.js

研究怎样通过手写代码来完成自动生成代码

/* 
Infragistics Web Combo Script 
Version 5.1.20051.37
Copyright (c) 2001-2004 Infragistics, Inc. All Rights Reserved.
*/

var igcmbo_displaying;
var igcmbo_currentDropped;

// private - hides all dropdown select controls for the document.
var igcmbo_hidden=false;
function igcmbo_hideDropDowns(bHide) { 
	 if(igcmbo_dropDowns == null)
		return;
     if(bHide)
     {
		if(igcmbo_hidden)
			return;
		igcmbo_hidden = true;
         for (i=0; i<igcmbo_dropDowns.length;i++)
              igcmbo_dropDowns[i].style.visibility='hidden';
     }
     else
     {
         for (i=0; i<igcmbo_dropDowns.length;i++)
         {
              igcmbo_dropDowns[i].style.visibility='visible';
         }
         igcmbo_hidden = false;
     }
}

var wccounter=0;
function igcmbo_onmousedown(evnt,id) {
	var oCombo = igcmbo_getComboById(id);
	if(!oCombo || !oCombo.Loaded) 
		return;
	var src = igcmbo_srcElement(evnt);
	oCombo.highlightText();
	if(oCombo.Editable && src.id == id + "_input") return;
	ig_inCombo = true;	
	oCombo.Element.setAttribute("noOnBlur",true);
	if(igcmbo_currentDropped != null && igcmbo_currentDropped != oCombo)
		igcmbo_currentDropped.setDropDown(false);
	if(oCombo.getDropDown() == true) {
		oCombo.setDropDown(false);
		igcmboObject = oCombo;
		if(document.all)
			setTimeout('igcmbo_focusEdit()', 10);
	}
	else {
		igcmbo_swapImage(oCombo, 2);
		oCombo.setDropDown(true);
	}
	window.setTimeout("igtbl_cancelNoOnBlurDD()",100);
}

var igcmboObject = null;
function igcmbo_focusEdit() {
	igcmboObject.setFocusTop();

}

function igcmbo_onmouseup(evnt,id) {
	var oCombo = igcmbo_getComboById(id);
	if(!oCombo || !oCombo.Loaded) 
		return;
	if(oCombo.Dropped == true) {
		igcmbo_swapImage(oCombo, 1);
	}
	else {
	}
}

function igcmbo_onmouseout(evnt,id) {
	var oCombo = igcmbo_getComboById(id);
	if(!oCombo || !oCombo.Loaded) 
		return;
	if(oCombo.Dropped == true) {
		igcmbo_swapImage(oCombo, 1);
	}
	else {
	}
}

function igcmbo_swapImage(combo, imageNo) {
	var img = igcmbo_getElementById(combo.ClientUniqueId + "_img");
	if(imageNo == 1) img.src = combo.DropImage1;
	else img.src = combo.DropImage2;
}

function igcmbo_ondblclick(evnt,id) {
	var oCombo = igcmbo_getComboById(id);
	if(!oCombo || !oCombo.Loaded) 
		return;
	if(oCombo.getDropDown() == true) {
		oCombo.setDropDown(false);
	}
}


function igcmbo_onKeyDown(evnt) {
	if(evnt.keyCode == 40) { // down arrow
	}
}

// public - Retrieves the server-side unique id of the combo
function igcmbo_getUniqueId(comboName) {
	var combo = igcmbo_comboState[comboName];
	if(combo != null)
		return combo.UniqueId;
	return null;
}
function igcmbo_getElementById(id) {
        if(document.all)
			return document.all[id];
        else 
			return document.getElementById(id);
}

// public - returns the combo object for the Item Id
function igcmbo_getComboById(itemId) {
	var id = igcmbo_comboIdById(itemId);  
	return igcmbo_comboState[id];
}

// public - returns the combo object from an Item element
function igcmbo_getComboByItem(item) {
	var id = igcmbo_comboIdById(item.id);  
	return igcmbo_comboState[id];
}

// public - returns the combo Name from an itemId
function igcmbo_comboIdById(itemId) {
   var comboName = itemId;
   var strArray = comboName.split("_");
   return strArray[0];
}

function igcmbo_getLeftPos(e) {
	x = e.offsetLeft;
	if(e.style.position=="absolute")
		return x;
	tmpE = e.offsetParent;
	while (tmpE != null) {
		if(tmpE.style.overflowX && tmpE.style.overflowX!="visible" || tmpE.style.overflow && tmpE.style.overflow!="visible")
			break;
		if((tmpE.style.position!="relative") && (tmpE.style.position!="absolute"))
			x += tmpE.offsetLeft;
		tmpE = tmpE.offsetParent;
	}
	return x;
}

function igcmbo_getTopPos(e) {
	y = e.offsetTop;
	if(e.style.position=="absolute")
		return y;
	tmpE = e.offsetParent;
	while (tmpE != null) {
		if(tmpE.style.overflowY && tmpE.style.overflowY!="visible" || tmpE.style.overflow && tmpE.style.overflow!="visible")
			break;
		if((tmpE.style.position!="relative") && (tmpE.style.position!="absolute"))
			y += tmpE.offsetTop;
		tmpE = tmpE.offsetParent;
	}
	return y;
}

// Warning: Private functions for internal component usage only
// The functions in this section are not intended for general use and are not supported
// or documented.

// private - Fires an event to client-side script and then to the server is necessary
function igcmbo_fireEvent(id,eventObj,eventString){
	var oCombo=igcmbo_comboState[id];
	var result=false;
	if(eventObj[0]!="")
		result=eval(eventObj[0]+eventString);
	if(oCombo.Loaded && result!=true && eventObj[1]==1 && !oCombo.CancelPostBack)
		oCombo.NeedPostBack = true;
	oCombo.CancelPostBack=false;
	return result;
}

// private - Performed on page initialization
function igcmbo_initialize() 
{
	if(typeof(window.igcmbo_initialized)=="undefined")
	{
		if(typeof(ig_csom)=="undefined" || ig_csom==null)
			return;
		ig_csom.addEventListener(document, "mousedown", igcmbo_mouseDown, false);
		ig_csom.addEventListener(document, "mouseup", igcmbo_mouseUp, false);

		window.igcmbo_initialized=true;
		ig_currentCombo = null;
	}
}

var igcmbo_comboState=[];
var igcmbo_dropDowns;

// private - initializes the combo object on the client
function igcmbo_initCombo(comboId) {

   var comboElement = igcmbo_getElementById(comboId+"_Main");
   var oCombo = new igcmbo_combo(comboElement,eval("igcmbo_"+comboId+"_Props"));
   igcmbo_comboState[comboId] = oCombo;
   igcmbo_fireEvent(comboId,oCombo.Events.InitializeCombo,"(\""+comboId+"\");");
   if(document.all != null && oCombo.HideDropDowns==true && igcmbo_dropDowns==null) {
		igcmbo_dropDowns = document.all.tags("SELECT");
   }
   oCombo.Loaded = true;
   return oCombo;
}

// private - constructor for the combo object
function igcmbo_combo(comboElement,comboProps) 
{
	igcmbo_initialize();

	this.Id=comboElement.id;
	this.Element=comboElement;
	this.Type="WebCombo";
	this.UniqueId=comboProps[0];
	this.DropDownId=comboProps[1];
	this.DropDownId=this.DropDownId.replace(":", "");
	this.DropDownId=this.DropDownId.replace("_", "x")+ "_main";
	this.DropImage1=comboProps[2];
	this.DropImage2=comboProps[3];
	this.ForeColor=comboProps[9];
	this.BackColor=comboProps[10];
	this.SelForeColor=comboProps[11];
	this.SelBackColor=comboProps[12];
	this.DataTextField=comboProps[13];
	this.DataValueField=comboProps[15];
	this.HideDropDowns=comboProps[17];
	this.Editable=comboProps[18];
	this.ClassName=comboProps[19];
	this.Prompt=comboProps[20];
	this.ComboTypeAhead=comboProps[22];
    
   	var uniqueId = igcmbo_getClientUniqueId(this.UniqueId);
	this.ClientUniqueId = uniqueId;
    
	this.Events= new igcmbo_events(eval("igcmbo_"+uniqueId+"_Events"));
	this.ExpandEffects = new igcmbo_expandEffects(comboProps[4], comboProps[5], comboProps[6], comboProps[7], comboProps[8], comboProps[9]);

	this.Loaded=false;
	this.Dropped = false;
	this.NeedPostBack=false;
	this.CancelPostBack=false;
	this.TopHoverStarted=false;
	
	this.getDropDown = igcmbo_getDropDown;
	this.setDropDown = igcmbo_setDropDown;
	this.getDisplayValue = igcmbo_getDisplayValue;
	this.setDisplayValue = igcmbo_setDisplayValue;
	this.getDataValue = igcmbo_getDataValue;
	this.setDataValue = igcmbo_setDataValue;
	this.setWidth = igcmbo_setWidth;
	this.getWidth = igcmbo_getWidth;
	this.getSelectedIndex = igcmbo_getSelectedIndex;
	this.setSelectedIndex = igcmbo_setSelectedIndex;
	this.selectedIndex = comboProps[21];
	this.setFocusTop = igcmbo_setFocusTop;
	this.updateValue = igcmbo_updateValue;
	this.updatePostField = igcmbo_updatePostField;
	this.setSelectedRow = igcmbo_setSelectedRow;
	this.grid = grid;
	var grid = igtbl_getElementById(this.ClientUniqueId + "xGrid");
	if(grid!=null)
		grid.setAttribute("igComboId", this.ClientUniqueId);
	grid = igtbl_getGridById(this.ClientUniqueId + "xGrid");
	this.grid = grid;
	this.getGrid = igcmbo_getGrid;
	var innerctl;
	
	innerctl = igcmbo_getElementById(this.ClientUniqueId + "_input");
	this.displayValue = innerctl.value;	 
	this.setWidth(this.Element.offsetWidth);
	
	// begin - editor control support
	igcmbo_getElementById(this.UniqueId).Object=this;
	this.getVisible = igcmbo_getVisible;
	this.setVisible = igcmbo_setVisible;
	this.getValue = igcmbo_getValue;
	this.setValue = igcmbo_setValue;
	this.eventHandlers=new Object();
	this.addEventListener=igcmbo_addEventListener;
	this.removeEventListener=igcmbo_removeEventListener;
	// end - editor control support
	
	this.keyCount=0;
	this.typeAheadTimeout=null;
	this.highlightText=igcmbo_highlightText;
}

// public - sets the width of the WebCombo to the passed in value
function igcmbo_setWidth(width) {
	var innerctl;
	if(width==0)
		return;
	var border = 6;
	if(document.all)
		border = this.Element.offsetWidth - this.Element.clientWidth;
	var image = igcmbo_getElementById(this.ClientUniqueId + "_img");	
	innerctl = igcmbo_getElementById(this.ClientUniqueId + "_input");
	innerctl.style.width =  width - image.offsetWidth - border > 0 ? width - image.offsetWidth - border : width - image.offsetWidth;
	this.Element.style.width = width;
}

// public - returns the CSS width of the combo element.
function igcmbo_getWidth() {return this.Element.style.width;}

// private - event initialization for menu object
function igcmbo_expandEffects(duration, opacity, type, shadowColor, shadowWidth, delay){
	this.Duration=duration;
	this.Opacity=opacity;
	this.Type=type;
	this.ShadowColor=shadowColor;
	this.ShadowWidth=shadowWidth;
	this.Delay=delay;
}

// private - event initialization for combo object
function igcmbo_getDropDown(){return this.Dropped;}

// private - event initialization for combo object
function igcmbo_setDropDown(bDrop){
	if(this.Element.style.display=="none")
		return;
	if(bDrop == true) {
		if(this.Dropped == true)
			return;
		var grid = igcmbo_getElementById(this.ClientUniqueId + "_container");
		var type=this.ExpandEffects.Type;
		var duration=this.ExpandEffects.Duration;
		duration = duration/1000;
		var shadowWidth=this.ExpandEffects.ShadowWidth;
		var opacity=this.ExpandEffects.Opacity;
		var shadowColor=this.ExpandEffects.ShadowColor;
		
		var cTop=igcmbo_getTopPos(this.Element);
		grid.style.top=cTop+this.Element.offsetHeight;
		grid.style.left=igcmbo_getLeftPos(this.Element);
 		if(igcmbo_fireEvent(this.ClientUniqueId,this.Events.BeforeDropDown,"(\""+this.ClientUniqueId+"\");")) {
 			return;
		}
		if(this.HideDropDowns) igcmbo_hideDropDowns(true);
		if(document.all  && this.ExpandEffects.Type!="NotSet") 
		{
			var type=this.ExpandEffects.Type;
			var duration=this.ExpandEffects.Duration;
			duration = duration/1000;
			var shadowWidth=this.ExpandEffects.ShadowWidth;
			var opacity=this.ExpandEffects.Opacity;
			var shadowColor=this.ExpandEffects.ShadowColor;


			if(type != 'NotSet')
				grid.style.filter = "progid:DXImageTransform.Microsoft."+type+"(duration="+duration+");"
			if(shadowWidth > 0) {
				var s = " progid:DXImageTransform.Microsoft.Shadow(Direction=135, Strength="+shadowWidth+",color='"+shadowColor+"')";
				grid.style.filter += s;
			}
			if(opacity < 100)
				grid.style.filter += " progid:DXImageTransform.Microsoft.Alpha(Opacity="+opacity+");"
			try{
			if(grid.filters[0] != null)
	       		grid.filters[0].apply();
	       	}catch(ex){}
	    }
		grid.style.visibility = 'visible'; 
		grid.style.display = ""; 
		
		var tw=grid.offsetWidth;
		var bw=document.body.clientWidth;
		if(grid.offsetLeft+tw>bw+document.body.scrollLeft)
			if(bw-tw+document.body.scrollLeft>0)
				grid.style.left=bw-tw+document.body.scrollLeft;
			else
				grid.style.left=0;
		var th=grid.offsetHeight;
		var bh=document.body.clientHeight;
		if(grid.offsetTop+th>bh+document.body.scrollTop && cTop-th>0)
			grid.style.top=cTop-th;
		try{
		if(document.all && grid.filters[0]!=null)
			grid.filters[0].play();
		}catch(ex){}				
				
		var dropdowngrid = igcmbo_getElementById(this.ClientUniqueId + "xGrid_main");
		if(document.all && dropdowngrid != null) {
			if(this.webGrid)
				this.webGrid.Element.setAttribute("noOnResize",true);
			igtbl_activate(this.ClientUniqueId + "xGrid");
			if(this.webGrid)
				this.webGrid.Element.removeAttribute("noOnResize");
		}
		this.Element.style.backgroundColor='white';
		this.Dropped = true;
		if(this.grid.getActiveRow())
			igtbl_scrollToView(this.grid.Id,this.grid.getActiveRow().Element);
		igcmbo_currentDropped = this;
 		igcmbo_fireEvent(this.ClientUniqueId,this.Events.AfterDropDown,"(\""+this.ClientUniqueId+"\");");
 		this._internalDrop = true;
 		setTimeout(igcmbo_clearInternalDrop, 100);