triggering focus event with namespace runs all focus listeners

[mgol]

Originally reported by peter@… at: http://bugs.jquery.com/ticket/14359

Using jQuery 1.9 onwards, calling .trigger('focus.myevent') focusses the target element and triggers all "focus" handlers, regardless of namespace.

This is inconsistent with other events, where only handlers with the "myevent" namespace would be triggered.

 http://jsfiddle.net/PeterChaplin/GUSN5/

This behaviour does not appear to be present in 1.7.2 or 1.8.3.

I have only tested this on Google Chrome Version 29.0.1547.66 m, in Windows 7

Issue reported for jQuery 1.10.2

[mgol]

Comment author: dmethvin

This is another result of triggering the native focus event so we can get the event order right. There are no jQuery extensions (namespaces, data) in those cases. See #13428.

[mgol]

Comment author: gibson042

Third time's the charm...  https://github.com/jquery/jquery/pull/1367

[timmywil]

Related: #1735

[caseyjhol]

This might be an acceptable workaround to prevent firing the handler twice as mentioned in #1741 (comment):

var $x = $("#aninput");
$x.triggerHandler("focus.myevent", ['extra', 'data']);
$x[0].focus();

$x.on("focus.myevent", function (e, extra, data) {
    if (e.originalEvent) return;
    console.log(extra, data);
});

$x.on("focus.notfired", function (e, extra, data) {
    if (e.originalEvent) return;
    console.log("This won't be fired.");
});

[gibson042]

Fixed by 669f720: http://jsfiddle.net/3nwhq0o7/1/