 | | | Event Dispatcher between classes | Event Dispatcher between classes 2004-03-16 - By Jens L?ffler
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Yes, it's working now with the EventDispatcher. Actually, the problem was
the
function clientdata_loaded, for some reason it needed are reference to the
owner class to work.
Solved, thanks! ;-)
Jens
>From: "flashcoder" <flashcoder@(protected)>
>Reply-To: flashcoders@(protected)
>To: <flashcoders@(protected)>
>Subject: RE: [Flashcoders] Event Dispatcher between classes
>Date: Wed, 17 Mar 2004 01:23:07 -0000
>
>Maybe jens doesn?t want to extend anything!
>
>Use it within classes like so >>
>
>/************************************
>import mx.events.EventDispatcher;
>//
>class MyClass {
>// #function references
>var dispatchEvent:Function;
>var addEventListener:Function;
>var removeEventListener:Function;
>//
>function MyClass() {
> EventDispatcher.initialize(this);
>// you now have the above methods usable
>}
>}
>/******************************************
>// OR!!
>import mx.events.EventDispatcher;
>//
>class MyClass {
>function dispatchEvent() {
>// intentionally empty!!!!
>}
>function addEventListener() {
>// intentionally empty!!!!
>}
>function removeEventListener() {
>// intentionally empty!!!!
>}
>//
>function MyClass() {
> EventDispatcher.initialize(object_to_initialise);
>}
>}
>
>-- --Original Message-- --
>From: Pranav Verma [mailto:pranavv@(protected)]
>Sent: 16 March 2004 07:35
>To: flashcoders@(protected)
>Subject: RE: [Flashcoders] Event Dispatcher between classes
>
>u r just missing one thing.... your dispatcher classs shud extend
>UIComponent! so it will be like this
>
>import mx.core.UIComponent
>class focuscast.core.Databaseproxy extends mx.core.UIComponent{
>
>thats it.
>
>You dont even need to import EventDispatcher class or initialze it
>(EventDispatcher.initialize(this))
>they all come free ;) with UIComponent class... so just extend UIComponent
>and u r all set:)
>
>Pranav.
>
> > -- --Original Message-- --
> > From: Jens L?ffler [mailto:jensloeffler@(protected)]
> > Sent: Tuesday, March 16, 2004 3:12 AM
> > To: flashcoders@(protected)
> > Subject: Re: [Flashcoders] Event Dispatcher between classes
> >
> >
> > Yes, I think that's within my framework. But I haven't figured out how
> > to connect two classes using the event modell.
> >
> > This is my example:
> > How can I make it work?
> >
> > Sender:
> >
> > import mx.events.EventDispatcher;
> > class focuscast.core.Databaseproxy {
> > public function Databaseproxy() {
> > EventDispatcher.initialize(this);
> > }
> > public function loadClients():Array {
> > var clientarray:Array = new Array();
> > clientdata = new LoadVars();
> >
> > clientdata.load("http://internal/database.php?action=loadClients");
> > clientdata.onLoad = clientdata_loaded;
> > return clientarray;
> > }
> > public function clientdata_loaded() {
> > trace("dispatching");
> > var responseobj:Object = {};
> > responseobj.type="onUpdateClient";
> > responseobj.target=this;
> > responseobj.data=clientarray;
> > dispatchEvent(responseobj);
> > }
> > }
> >
> >
> >
> > Receiver:
> >
> > class focuscast.core.Datahandler extends MovieClip {
> > public var databaseproxy;
> > function Datahandler() {
> > databaseproxy = new Databaseproxy();
> >
> > databaseproxy.addEventListener("onUpdateClient", this);
> > }
> >
> > function onUpdateClient() {
> > trace("received");
> > }
> > }
> >
> >
> > >From: "Erik Bianchi" <erikbianchi@(protected)>
> > >Reply-To: flashcoders@(protected)
> > >To: <flashcoders@(protected)>
> > >Subject: Re: [Flashcoders] Event Dispatcher between classes
> > >Date: Mon, 15 Mar 2004 16:18:19 -0500
> > >
> > >Take a look at using the MVP design pattern. Sounds like you
> > just need to
> > >work on your architecture a bit and this pattern will help
> > resolve this for
> > >you.
> > >
> > >Basically a Presenter would be responsible for initializing your
> > >components/classes and hooking them together. When using MVP that
> > >relationship would be hooking the model and view together.
> > The Model being
> > >the broadcaster(subject) and the view listening to the
> > broadcast(observer).
> > >
> > >hope that helps.
> > >
> > >-erik
> > >-- -- Original Message -- --
> > >From: "Jens L?ffler" <jensloeffler@(protected)>
> > >To: <flashcoders@(protected)>
> > >Sent: Monday, March 15, 2004 4:01 PM
> > >Subject: [Flashcoders] Event Dispatcher between classes
> > >
> > >
> > > > Hi,
> > > >
> > > > does anyone know what's the best way to use the Event
> > Dispatcher between
> > >two
> > > > classes to send messages? I've initalized the sending class in the
> > > > constructor with eventdispacher, and extended the
> > listening class to a
> > > > movieclip, so a public function can be used to receive
> > the message, but
> > >it's
> > > > doesn't really work. Is there any standard way? (I don't
> > want to use
> > >code
> > > > outside the classes)
> > > >
> > > > Jens
> > > >
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