[jQuery] Re: Event namespacing - how to see the full event name?

2008-03-25 Thread Andy Matthews 
You're allowed to pass in an array object along with each trigger method
call.
 
So this might work for you:
 
var call = 1;
$('.foo').trigger('bar.update',[call]]);
 
var call = 2;
$('.foo').trigger('bar.update',[call]]);
 
$('.foo').bind('bar', function(e,data) {
if (data[0] == 1) {
// I came from call 1
} else {
// i came from call 2
}
});

  _  

From: jquery-en@googlegroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of Guy Fraser
Sent: Tuesday, March 25, 2008 1:34 PM
To: jquery-en@googlegroups.com
Subject: [jQuery] Event namespacing - how to see the full event name?


Hi,

I've been triggering several events as follows:

$('.foo').trigger('bar.update');
$('.foo').trigger('bar.show');

etc...

If I listen to the bar event on foo:

$('.foo').bind('bar', function(e) {
  // e.type = 'bar'
});

The event type property is always bar - how do I work out if bar.update
vs. bar.show was triggered?

I might be misunderstanding the event system (or more accurately it's
namespacing) but I imagined that I could listen to a specific bar event:

$('.foo').bind('bar.update', handler);

Or all bar events (bar.update, bar.show, etc):

$('.foo').bind('bar', handler);

When listening to all of them with a single handler, it would be useful for
the handler to see the full event name (bar.update instead of just bar)
so I could switch on event type inside the handler.

I guess I could achieve the required effect using event data, but it seems
such a waste not to have the full event name in the event type (or possibly
a .name property could contain it?)

Any ideas?

Guy

[jQuery] Re: Event namespacing - how to see the full event name?

2008-03-25 Thread Karl Rudd 

You're correct about the name-spacing. The name-space comes after the
event type:

$('.class').bind('click.namespace', function(){//});
$('.class').trigger('click.namespace');

(from: http://docs.jquery.com/Events_%28Guide%29 )

Karl

On Wed, Mar 26, 2008 at 5:34 AM, Guy Fraser [EMAIL PROTECTED] wrote:

  Hi,

  I've been triggering several events as follows:

  $('.foo').trigger('bar.update');
  $('.foo').trigger('bar.show');

  etc...

  If I listen to the bar event on foo:

  $('.foo').bind('bar', function(e) {
// e.type = 'bar'
  });

  The event type property is always bar - how do I work out if bar.update
 vs. bar.show was triggered?

  I might be misunderstanding the event system (or more accurately it's
 namespacing) but I imagined that I could listen to a specific bar event:

  $('.foo').bind('bar.update', handler);

  Or all bar events (bar.update, bar.show, etc):

  $('.foo').bind('bar', handler);

  When listening to all of them with a single handler, it would be useful for
 the handler to see the full event name (bar.update instead of just bar)
 so I could switch on event type inside the handler.

  I guess I could achieve the required effect using event data, but it seems
 such a waste not to have the full event name in the event type (or possibly
 a .name property could contain it?)

  Any ideas?

  Guy

[jQuery] Re: Event namespacing - how to see the full event name?

2008-03-25 Thread Guy Fraser 
Yeah, I thought I'd have to use the data feature, it just seems a shame 
not to have a property on event that provides that info.

I did some digging in the jQuery source and found that i's trivial to 
expose the namespaced event type by inserting the following in to the 
handle() method before line 2059 in the current public release of 1.2.3:

event.namespaced = event.type;

With that added, all events then have a .namespaced property on the 
event parameter allowing you to see exactly which event was called and 
switch on it :)

I've submitted a feature request, including an example scenario and 
code: http://dev.jquery.com/ticket/2585

Guy


Andy Matthews wrote:
 You're allowed to pass in an array object along with each trigger 
 method call.
  
 So this might work for you:
  
 var call = 1;
 $('.foo').trigger('bar.update',[call]]);
  
 var call = 2;
 $('.foo').trigger('bar.update',[call]]);
  
 $('.foo').bind('bar', function(e,data) {
 if (data[0] == 1) {
 // I came from call 1
 } else {
 // i came from call 2
 }
 });