Re: [Dynapi-Dev] Create DynLayers faster after page loads

[Benoit Marchant]

it reallly makes sense that it should be faster. When you do 
insertAdjacentHTML, that HTML has to be parsed by the browser which 
will end up doing document.createElement('DIV') etc anyway.

Benoit

On Friday, March 7, 2003, at 10:22  AM, Raymond Irving wrote:

--- Benoit Marchant <[EMAIL PROTECTED]> wrote:
If it looks like it's more efficient, and I remember
when we talked
about it in my test it was, we should certainly
fully test it and
eventually adopt it.
Yes I agree. We will still have to keep to old method
to support ie4
--
Raymond Irving
Benoit

On Friday, March 7, 2003, at 07:16  AM, Raymond
Irving wrote:
Hi,

Some time ago benoit had suggested that we use the
createElement() function to create layers inside
DOM
browsers. After hitting my head against the wall
in
trying to prevent slow downs after with each newly
created layer, I've found the createElement()
function
to be more efficient than insertAdjacentHTML(). I
don't know how well this will scale with nested
layers, but I think it's a more efficient way to
go.
Please see the code below. Any comments?

Speed Test - 100 layers @ 170ms.

p._create = function() {
        if (this.parent && !this.elm) {                 
                DynElement._flagEvent(this,'precreate');                
                var elm, parentElement;
                parentElement = this.parent.elm;
                if(dynapi.ua.v<5){
                

parentElement.insertAdjacentHTML("beforeEnd",this.getOuterHTML());
			elm =


parentElement.children[parentElement.children.length-1];
                }
                else {
                        elm=document.createElement('DIV');
                        elm.id=this.id;
                        elm.style.position='absolute';
                        elm.style.pixelLeft=(this.x||0);
                        elm.style.pixelTop=(this.y||0);
                        elm.style.width=(this.w||'auto');
                        elm.style.height=(this.h||'auto');
                

elm.style.backgroundColor=(this.bgColor||'transparent');
                        elm.style.zIndex=(this.z||1);
                        elm.style.cursor=(this._cursor||'auto')
                        elm.style.overflow=(this._overflow!=null)?
'hidden;':'';                   
                        if(this.bgImage!=null)
elm.style.backgroundImage='url('+this.bgImage+')';
                        if (this.bgImage==null && this.html==null)
elm.style.backgroundImage='none';
                        if (this.clip)
elm.style.clip='rect('+this.clip[0]+'px
'+this.clip[1]+'px '+this.clip[2]+'px
'+this.clip[3]+'px)';
                        else if (this.w!=null && this.h!=null)
elm.style.clip='rect(0px '+this.w+'px '+this.h+'px
0px)';          
                        elm.style.visibility=(this.visible==false)?
'hidden':'inherit';
                        elm.innerHTML=this.getInnerHTML();
                        parentElement.appendChild(elm);
                }
                DynLayer._assignElement(this,elm);
                DynElement._flagEvent(this,'create');
        }
};
--
Raymond Irving
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