Hi,
The AS2 event mechanism is slightly different - there is not really
an Event type - you just get an object with a "type" string and a
"target" property.
In AS2, Events don't "bubble" either...
You might be quicker / easier to persuade your client that AS3 is
the way forward - not sure of the reasoning here, but surely the
benefits of AS3 outweigh the downsides, erm, what downsides apart from a
learning curve and the ability to cause memory leaks easily :)
If you want your classes to dispatch events you will need them to
implement the EventDispatcher API - With AS2, I used to create a class
which extended MovieClip, then implemented the EventDispatcher "mixin"
bit - look in the Components Reference.
See the stuff below, although someone else may have written a nice
framework / set of classes to implement events a bit more - check out
osflash.org
HTH
Glen
/**
*
* Class: EventDispatcherForm - implements the EventDispatcher mixin to allow
* subclasses to easily dispatch events.
*/
import mx.events.EventDispatcher;
class com.glenpike.common.view.EventDispatcherForm extends MovieClip
{
function EventDispatcherForm ()
{
EventDispatcher.initialize(this);
}
public function addEventListener(event:String, listener):Void {}
public function removeEventListener(event:String, listener):Void {}
public function dispatchEvent(eventObject:Object):Void {}
}
Then in my classes which dispatch events:
class com.glenpike.sasanim.view.RolloverButton extends EventDispatcherForm
{
//...
function onRelease ()
{
if(mEnabled) {
//...
dispatchEvent( { type: "release"} );
}
}
}
Then my lazy function in the parent clip which contains lots of buttons,
but I could not be bothered to refer to them all by name for adding
listeners..:
class com.glenpike.common.view.Page extends EventDispatcherForm //Also
dispatches events
{
function setUp() {
for(var btn in this) {
if(this[btn] instanceof
com.glenpike.sasanim.view.RolloverButton) {
this[btn].addEventListener("release",
Delegate.create(this, btnClick));
}
}
}
function btnClick(evt:Object) {
trace("Override me ******");
}
}
Lord, Susan, CTR, DSS wrote:
I know this seems like a backwards question... but my client has
requested (300 plus fla's later) that we revert our code back to AS2. I
was wondering if there was a quick way to do this. When I ran my first
piece in AS2 and it was searching for the event class. I was wondering
if there was a quick way around this... like somehow incorporating the
event class into an AS2 piece or will this piece completely have to be
rewritten?
Thanks!
Susan
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--
Glen Pike
01326 218440
www.glenpike.co.uk <http://www.glenpike.co.uk>
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