My sample code has an error in it. Make this small change and you should
have no more problems, at least I am getting my data now:
from: qx.event.message.Message('transport-update'), s);
to: qx.event.message.Message('transport-update', s));
Jim
On 9/7/07, frederic <[EMAIL PROTECTED]> wrote:
>
>
> Hello,
> The following code doesn't work :
>
> *** test.txt ***
> Hello world
>
> *** Application.js ***
> var req = new qx.io.remote.Request('test.txt');
> req.addEventListener('completed', function(e){
> s = e.getData().getContent();
> this.debug("s="+s);
> qx.event.message.Bus.dispatch(new
> qx.event.message.Message('transport-update'), s);
> });
> req.send();
>
> qx.event.message.Bus.subscribe('transport-update',
> function(message){
> var data = message.getData();
> window.setTimeout(function(x){
> alert(data)
> },0)
> })
>
> The alert box print "null" (tested on FF2.0.6, no error in Firebug) and
> not
> "Hello world".
> Tested on latest trunk and 0.7.1.
>
> What's wrong ?
>
> frederic
>
>
>
>
>
>
> bibliograph wrote:
> >
> > Jim, I think Derrell is right here - messages are disposed after all
> > subscribers have been notified.
> >
> > Christian
> >
> > Derrell Lipman schrieb:
> >>
> >>
> >> On 9/5/07, *Jim Hunter* <[EMAIL PROTECTED]
> >> <mailto:[EMAIL PROTECTED]>> wrote:
> >>
> >> Christian,
> >>
> >> I was excited to see this bit of information so I tried out some
> >> tests to see what I could do with messages and I am not able to
> >> pass data like your sample shows. When I do the exact same thing
> >> as you have, the getData() is null. Is there a typo in your code
> >> or what might I be doing wrong? Here is a quick sample of what I
> >> tried:
> >>
> >> qx.event.message.Bus.subscribe('transport-update',
> >> function(message){
> >> window.setTimeout(function(x){
> >> alert(message.getData())
> >> },0)
> >> }
> >> )
> >>
> >>
> >> var req = new qx.io.remote.Request('test.txt');
> >> req.addEventListener('completed', function(e){
> >> s = e.getData().getContent();
> >> qx.event.message.Bus.dispatch(new
> >> qx.event.message.Message('transport-update'), s);
> >> });
> >> req.send();
> >>
> >> When the file is loaded it dispatches the 'transport-update'
> >> message and when the alert fires in the message.Bus event, it says
> >> 'null' when it should have the info stored in s. If I pass in true
> >> like you did, I get the same results, null.
> >>
> >> Any thoughts?
> >>
> >>
> >> Jim, without doing any experimenting, it looks to me like the event
> >> may no longer exist when your timeout eventually fires. You might try
> >> saving it in a local variable (with a closure) like this to see if it
> >> makes any difference:
> >>
> >> qx.event.message.Bus.subscribe('transport-update',
> >> function(message){
> >> var data = message.getData();
> >> window.setTimeout(function(x){
> >> alert(data)
> >> },0)
> >> }
> >> )
> >>
> >> Derrell
> >>
> >>
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> >
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