Opened 10 years ago

Closed 10 years ago

#15392 closed defect (duplicate)

dojo.on handlers .remove() fails to remove listener for focusin event

Reported by: waltercacau Owned by: Kris Zyp
Priority: undecided Milestone: 1.8
Component: Events Version: 1.7.2
Keywords: Cc:
Blocked By: Blocking:

Description

The following snippet exemplifies the problem 

<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/dojo/1.7.2/dojo/dojo.js"></script>
</head>
<body>
Trigger focus and blur sometimes in following input and observe the terminal: <br/>
<input type="text" id="input" />
<script>
require(['dojo','dojo/on'], function(dojo, on) {
	var input = dojo.byId('input');
	var counter = 0;
	var handle = on(input, 'focusin', function() {
		console.log('Handle - call ' + (++counter));

		// Removing Handle 1
		handle.remove();
	});
});
</script>

</body>
</html>

Try to focus and unfocus a couple of times the input box. You would expect that in the console you just see "Handle - call 1", but you will see "Handle - call 2", "Handle - call 3", ... That's because the event listener is not being removed.

I traced it to the line 139 of dojo/on.js: 

target.removeEventListener(type, listener, capture);

I believe it should be 

target.removeEventListener(capture ? captures[type] : type, listener, capture);

Thanks

Change History (3)

comment:1 Changed 10 years ago by bill

Milestone: tbd → 1.8
Resolution: → fixed
Status: new → closed

I fixed this in [27526] already.

comment:2 Changed 10 years ago by bill

Resolution: fixed
Status: closed → reopened

Guess I should mark this as a duplicate.

comment:3 Changed 10 years ago by bill

Resolution: → duplicate
Status: reopened → closed

Duplicate of #14595.

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