On Thu, May 7, 2009 at 7:47 AM, Andreas G. <[email protected]> wrote:
>
> im testing callAsyncListeners now.
>
> here's the code:
>
> rpcListenerTest: function()
> {
> var rpc = new qxgui.utils.Rpc;
>
> rpc.callAsync( "getMenuXml" );
> rpc.addListener( "completed", function(e)
> {
> var xml = new qxgui.utils.XML();
>
> xml.setDocument( e.getData() );
> alert( xml.isXmlDocument() ); // false
>
> qxgui.utils.Vars.dump( e.getData() ); // object
> });
> }
>
> to avoid questions about rpc.callAsync heres the code of the method:
>
> callAsync: function( method, args )
> {
> this.__rpc.callAsyncListeners( true, method, args );
> }
>
> now to my question. the api says that i get a JSON-RPC result on success,
> is
> it different than the result of the callback-function in callAsync(...) ?
>
Nope, it's exactly the same result. It's just provided to you via an event
listener rather than via a callback function.
BTW, you should add your listener BEFORE issuing the async call. Although
Javascript single-threading should prevent the problem, there is a (very)
slight chance that the response could be returned before your listener gets
established, and with no listener, the response would just be thrown away.
Therefore do your rpc.addListener("completed", ...) call before calling
rpc.callAsync("getMenuXml").
Derrell
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