At 2001-08-17 18:10, you wrote:
>Bugs item #425789, was opened at 2001-05-20 19:21
>You can respond by visiting:
>http://sourceforge.net/tracker/?func=detail&atid=105757&aid=425789&group_id=5757
>
>Category: DynAPI 2 Events
>Group: None
>Status: Open
>Resolution: None
>Priority: 5
>Submitted By: a.joannou (conan1)
>Assigned to: Jordi Ministral (dodoron)
>Summary: Events Fire On All Objects (same subcls)
>
>Initial Comment:
> On objects made from other objects which in turn are made from the DynLayer
>(e.g.
>scrollPane), eventListeners placed on one object, fire on ALL of them as outlined in
>the following
>example. Why is this? Is there a solution?
> This problem is apparent on any objects created in the same way (e.g. if I
>create an
>object 'A' based on DynLayer, and then create an object 'B' based on object 'A', the
>same problem
>occurs).
> This makes programming of complex objects IMPOSSIBLE.
>
>Looking forward to your prompt reply.
>Deli.
[snip]
The problem is the objects share the same eventListener array [in your example it can
be verified with an alert(scrollpane1.eventListeners === scrollpane2.eventListeners);
line].
So, how to fix it? I wasn't able to find a nice way to do it so the following kludge
will do for now...
(Because eventListeners are a rather fundamental aspect of the code it is less of a
kludge than it really is :-)
In dynlayer.js, make the DynLayer function end with:
// These aren't used unless listeners.js is included
this.eventListeners = [];
this.hasEventListeners = false;
};
and change one line in listeners.js:
DynObject.prototype.addEventListener=function(listener) {
if(!this.hasEventListeners) { this.eventListeners = []; } // <- This
changed
this.hasEventListeners = true;
for (var i=0;i<this.eventListeners.length;i++) if
(this.eventListeners[i]==listener) return;
this.eventListeners[this.eventListeners.length]=listener;
}
NB: I only made a quick-and-dirty test-case, and I got the desired results with these
changes. Please check so it doesn't break anything else!
/Lunna
_______________________________________________
Dynapi-Dev mailing list
[EMAIL PROTECTED]
http://lists.sourceforge.net/lists/listinfo/dynapi-dev
