/*******************************************************************
* File : JSFX_Layer.js © JavaScript-FX.com
* Created : 2001/04/11
* Author : Roy Whittle (Roy@Whittle.com) www.Roy.Whittle.com
* Purpose : To create a cross browser dynamic layer API.
* History
* Date Version Description
* 2001-03-17 3.0 Completely re-witten for use by javascript-fx
* 2001-09-08 3.1 Added the ability for child layers
* 2001-09-23 3.2 Save a reference so we can use a self referencing timer
* 2001-09-28 3.3 Add a width for Netscape 4.x
* 2001-09-28 3.4 Remove width for Netscape 4.x create layer (Not needed)
* 2002-01-21 3.5 Declare only one instance of variables in createLayer
* 2002-06-12 3.6 Correct a major bug in JSFX.findLayer (Basically the same bug as
* in JSFX.findImg - must brush up on recursion)
* 2003-05-19 3.7 Change the id creation for the Layer/Timer functions
***********************************************************************/
var ns4 = (navigator.appName.indexOf("Netscape") != -1 && !document.getElementById);
if(!window.JSFX)
JSFX=new Object();
JSFX.layerNo=0;
/**********************************************************************************/
JSFX.createLayer = function(htmlStr, parent)
{
//Declare all variables first
var elem = null;
var xName;
var txt;
if(document.layers)
{
xName="xLayer" + JSFX.layerNo++;
if(parent == null)
elem=new Layer(2000);
else
elem=new Layer(2000, parent.elem);
elem.document.open();
elem.document.write(htmlStr);
elem.document.close();
elem.moveTo(0,0);
elem.innerHTML = htmlStr;
}
else
if(document.all)
{
if(parent == null)
parent=document.body;
else
parent=parent.elem;
xName = "xLayer" + JSFX.layerNo++;
txt = '
'
+ htmlStr
+ '
';
parent.insertAdjacentHTML("BeforeEnd",txt);
elem = document.all[xName];
}
else
if (document.getElementById)
{
if(parent == null)
parent=document.body;
else
parent=parent.elem;
xName="xLayer" + JSFX.layerNo++;
txt = ""
+ "position:absolute;left:0px;top:0px;visibility:hidden";
var newRange = document.createRange();
elem = document.createElement("DIV");
elem.setAttribute("style",txt);
elem.setAttribute("id", xName);
parent.appendChild(elem);
newRange.setStartBefore(elem);
strFrag = newRange.createContextualFragment(htmlStr);
elem.appendChild(strFrag);
}
return elem;
}
/**********************************************************************************/
JSFX.Layer = function(newLayer, parent)
{
if(!newLayer)
return;
if(typeof newLayer == "string")
this.elem = JSFX.createLayer(newLayer, parent);
else
this.elem=newLayer;
if(document.layers)
{
this.images = this.elem.document.images;
this.parent = parent;
this.style = this.elem;
if(parent != null)
this.style.visibility = "inherit";
}
else
{
this.images = document.images;
this.parent = parent;
this.style = this.elem.style;
}
window[ this.id = "jsfx_" + this.elem.id ]=this; //save a reference to this
}
/**********************************************************************************/
JSFX.getLayer = function(theDiv, d)
{
var theLayer = d.layers[theDiv];
for(var i=0 ; i"+this.elem.innerHTML+"");
this.elem.document.close();
}
/**********************************************************************************/
/*** BackGround Color ***/
JSFX.Layer.prototype.setBgColor = function(color) { this.style.backgroundColor = color==null?'transparent':color; }
if(ns4)
JSFX.Layer.prototype.setBgColor = function(color) { this.elem.bgColor = color; }
/**********************************************************************************/
/*** BackGround Image ***/
JSFX.Layer.prototype.setBgImage = function(image) { this.style.backgroundImage = "url("+image+")"; }
if(ns4)
JSFX.Layer.prototype.setBgImage = function(image) { this.style.background.src = image; }
/**********************************************************************************/
/*** set Content***/
JSFX.Layer.prototype.setContent = function(xHtml) { this.elem.innerHTML=xHtml; }
if(ns4)
JSFX.Layer.prototype.setContent = function(xHtml)
{
this.elem.document.write(xHtml);
this.elem.document.close();
this.elem.innerHTML = xHtml;
}
/**********************************************************************************/
/*** Clipping ***/
JSFX.Layer.prototype.clip = function(x1,y1, x2,y2){ this.style.clip="rect("+y1+" "+x2+" "+y2+" "+x1+")"; }
if(ns4)
JSFX.Layer.prototype.clip = function(x1,y1, x2,y2)
{
this.style.clip.top =y1;
this.style.clip.left =x1;
this.style.clip.bottom =y2;
this.style.clip.right =x2;
}
/**********************************************************************************/
/*** Resize ***/
JSFX.Layer.prototype.resizeTo = function(w,h)
{
this.style.width =w + "px";
this.style.height =h + "px";
}
if(ns4)
JSFX.Layer.prototype.resizeTo = function(w,h)
{
this.style.clip.width =w;
this.style.clip.height =h;
}
/**********************************************************************************/
/*** getX/Y ***/
JSFX.Layer.prototype.getX = function() { return parseInt(this.style.left); }
JSFX.Layer.prototype.getY = function() { return parseInt(this.style.top); }
if(ns4)
{
JSFX.Layer.prototype.getX = function() { return this.style.left; }
JSFX.Layer.prototype.getY = function() { return this.style.top; }
}
/**********************************************************************************/
/*** getWidth/Height ***/
JSFX.Layer.prototype.getWidth = function() { return this.elem.offsetWidth; }
JSFX.Layer.prototype.getHeight = function() { return this.elem.offsetHeight; }
if(!document.getElementById)
JSFX.Layer.prototype.getWidth = function()
{
//Extra processing here for clip
return this.elem.scrollWidth;
}
if(ns4)
{
JSFX.Layer.prototype.getWidth = function() { return this.style.clip.right; }
JSFX.Layer.prototype.getHeight = function() { return this.style.clip.bottom; }
}
/**********************************************************************************/
/*** Opacity ***/
if(ns4)
{
JSFX.Layer.prototype.setOpacity = function(pc) {return 0;}
}
else if(document.all)
{
JSFX.Layer.prototype.setOpacity = function(pc)
{
if(this.style.filter=="")
this.style.filter="alpha(opacity=100);";
this.elem.filters.alpha.opacity=pc;
}
}
else
{
/*** Assume NS6 ***/
JSFX.Layer.prototype.setOpacity = function(pc){ this.style.MozOpacity=pc+'%' }
}
/**************************************************************************/
/*** Event Handling - Start ***/
/*** NS4 ***/
if(ns4)
{
JSFX.eventmasks = {
onabort:Event.ABORT, onblur:Event.BLUR, onchange:Event.CHANGE,
onclick:Event.CLICK, ondblclick:Event.DBLCLICK,
ondragdrop:Event.DRAGDROP, onerror:Event.ERROR,
onfocus:Event.FOCUS, onkeydown:Event.KEYDOWN,
onkeypress:Event.KEYPRESS, onkeyup:Event.KEYUP, onload:Event.LOAD,
onmousedown:Event.MOUSEDOWN, onmousemove:Event.MOUSEMOVE,
onmouseout:Event.MOUSEOUT, onmouseover:Event.MOUSEOVER,
onmouseup:Event.MOUSEUP, onmove:Event.MOVE, onreset:Event.RESET,
onresize:Event.RESIZE, onselect:Event.SELECT, onsubmit:Event.SUBMIT,
onunload:Event.UNLOAD
};
JSFX.Layer.prototype.addEventHandler = function(eventname, handler)
{
this.elem.captureEvents(JSFX.eventmasks[eventname]);
var xl = this;
this.elem[eventname] = function(event) {
event.clientX = event.pageX;
event.clientY = event.pageY;
event.button = event.which;
event.keyCode = event.which;
event.altKey =((event.modifiers & Event.ALT_MASK) != 0);
event.ctrlKey =((event.modifiers & Event.CONTROL_MASK) != 0);
event.shiftKey =((event.modifiers & Event.SHIFT_MASK) != 0);
return handler(xl, event);
}
}
JSFX.Layer.prototype.removeEventHandler = function(eventName)
{
this.elem.releaseEvents(JSFX.eventmasks[eventName]);
this.elem[eventName] = null;
}
}
/**************************************************************************/
/** IE 4/5+***/
else
if(document.all)
{
JSFX.Layer.prototype.addEventHandler = function(eventName, handler)
{
var xl = this;
this.elem[eventName] = function()
{
var e = window.event;
e.cancelBubble = true;
if(document.getElementById)
{
e.layerX = e.offsetX;
e.layerY = e.offsetY;
}
else
{
/*** Work around for IE 4 : clone window.event ***/
ev = new Object();
for(i in e)
ev[i] = e[i];
ev.layerX = e.offsetX;
ev.layerY = e.offsetY;
e = ev;
}
return handler(xl, e);
}
}
JSFX.Layer.prototype.removeEventHandler = function(eventName)
{
this.elem[eventName] = null;
}
}
/**************************************************************************/
/*** Assume NS6 ***/
else
{
JSFX.Layer.prototype.addEventHandler = function(eventName, handler)
{
var xl = this;
this.elem[eventName] = function(e)
{
e.cancelBubble = true;
return handler(xl, e);
}
}
JSFX.Layer.prototype.removeEventHandler = function(eventName)
{
this.elem[eventName] = null;
}
}
/*** Event Handling - End ***/
/**************************************************************************/
JSFX.Layer.prototype.setTimeout = function(f, t)
{
setTimeout("window."+this.id+"."+f, t);
}
/*************************************************************************/