[Dynapi-Dev] Changes to events.jsp to work around Internet Explorer Issues

[Kirk R. H. <kh...@qu...>]

While trying out the dynapi I was having some issues with Internet =
Explorer 5 and mouse event handling so I dug through the code and made =
some alterations to events.jsp. I figured that I would pass them on to =
this mailing list in case the changes I made could be useful to any one =
else. Since I do not subscribe to this list myself, if anyone wants to =
discuss my changes, please feel free to email me at kh...@qu...

The changes are as follows:
in the DynLayer.prototype.EventMethod I added the following code to =
determine which dynAPI layer was associated with the mouse event. The =
reason for this code is that a layer which contains other elements that =
can respond to the mouse events will receive a mouse event through the =
IE event bubbling paradigm where the events srcElement will not be equal =
to the layer itself but to its subcomponent such as a <TD> element or a =
<FONT> element, therefore, in order to find the appropriate dynLayer =
object to associated the mouse event with, you must search through the =
srcElements object hierarchy to find a dynLayer. That is what the =
following code does. I put this code right under the current is.ie block =
in the DynLayer.prototype.EventMethod

Kirk Hill
Quai, Inc.

_______________________________________________
New Code
_________________________________________________

 var realsrc;

 if(! is.ie) {
   realsrc =3D e.target;
 } else {
   // For Internet Explorer we want to find the element type that has =
been associated with a=20
          // dynLayer object, therefore, we will look up through the =
object
          // hierarchy until we find an element that has an associated =
dynLayer.
          // If that element is not found then we will just pass the =
original source
          // element and the code later on will pick dyndoc as the =
dynAPI object
          // which is the target of this event.
   var par =3D event.srcElement;
   while(par !=3D null && par.lyrobj =3D=3D null) par =3D =
par.parentElement;
   realsrc =3D (par =3D=3D null)?event.srcElement:par;
  =20
   // Cache the dynLayer at the original element for faster access
   if(par !=3D null) event.srcElement.lyrobj =3D par.lyrobj;
 }


_______________________________________________
Previous Code
_________________________________________________
 var realsrc=3Dis.ie ? e.srcElement:e.target
 var which=3D(is.ie||is.ns5)?e.button:e.which