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#13376 closed bug (cantfix)
Opened February 03, 2013 10:25PM UTC
Closed February 24, 2013 10:05PM UTC
Last modified February 24, 2013 11:29PM UTC
Resize event is triggered in the middle of a running function called by setTimeout, when calling elem.height()
| Reported by: | perroazul64@gmail.com | Owned by: | perroazul64@gmail.com |
|---|---|---|---|
| Priority: | undecided | Milestone: | None |
| Component: | unfiled | Version: | 1.9.0 |
| Keywords: | Cc: | ||
| Blocked by: | Blocking: |
Description
So, I found this weird behaviour which I suspect might be a Firefox bug, but I can't tell since I don't know what jquery is doing. It's happening in Firefox 18.0.1 on Win7x64.
Here's a replication of the bug: http://jsfiddle.net/PerroAZUL/KtCgh/1/
Basically, a function is called which sets a flag to true at the beggining and sets it back to false at the end. A resize event is hooked which will show a message if the flag is true (which should never happen) and then call the function with a setTimeout.
To replicate the bug you must trigger multiple resize events and check the console to see if the message appears. I just open the console and resize it until the message is shown.
jsfiddle can be a bit laggy when resizing so here's the source of the complete html if you prefer to test it with a local file: http://hastebin.com/besisegoto.htm
The bug seems to only happen when calling height() on the element.
Attachments (0)
Change History (6)
Changed February 12, 2013 03:40AM UTC by comment:1
| owner: | → perroazul64@gmail.com |
|---|---|
| status: | new → pending |
Changed February 12, 2013 04:10AM UTC by comment:2
| status: | pending → new |
|---|
Replying to [comment:1 dmethvin]:
Getting the height may require changing properties of the document, which could conceivably cause a resize event. Have you reported this to Firefox? Reducing it to a smaller test case without jQuery involved might help.
Even if it fired a resize event, should the event handler be called right away? I haven't reported the issue to Firefox but I guess I should. It has something to do with the function being called through setTimeout, so I doubt it's a jQuery problem. I'll see if I can make a test case without using jQuery.
Changed February 12, 2013 05:01AM UTC by comment:3
I managed to make a smaller test case without jQuery: http://jsfiddle.net/PerroAZUL/e4NEz/
The resize event handler is called when accessing the offsetWidth property of the element. From further testing I noticed that accessing the property doesn't trigger the event itself; rather, it forces the handler to be called, somehow.
Changed February 12, 2013 08:01PM UTC by comment:4
Just for the record, I already reported the issue to Firefox.
Changed February 24, 2013 10:05PM UTC by comment:5
| resolution: | → cantfix |
|---|---|
| status: | new → closed |
I'm not sure if synchronous event firing is a bug or not, but if it is then Firefox will need to fix it. Can you post a link to the Mozilla ticket here?
Changed February 24, 2013 11:29PM UTC by comment:6
This is the Mozilla ticket: https://bugzilla.mozilla.org/show_bug.cgi?id=840412
Getting the height may require changing properties of the document, which could conceivably cause a resize event. Have you reported this to Firefox? Reducing it to a smaller test case without jQuery involved might help.