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Bogus JS 'resize' events are fired when transitioning a canvas between fullscreen modes.




3 years ago
3 years ago


(Reporter: Jukka Jylänki, Unassigned)


(Blocks: 1 bug)

33 Branch
Windows 7

Firefox Tracking Flags

(Not tracked)




3 years ago

1. Visit https://dl.dropboxusercontent.com/u/40949268/emcc/bugs/bogus_resize_event.html
2. Click the button "Fullscreen bare" on the page.
3. Press esc to transition back to Windowed mode.
4. Open the web console and observe the results:

Observed: The web console prints something like in this image: https://dl.dropboxusercontent.com/u/40949268/emcc/bugs/bogus_resize_event_firefox.png

Note that there are two 'resize' events received for a unexplainable 1936x1056 size, and when transitioning back to windowed mode, the resize event for 300x300 is triggered twice.

The test in the page was conducted on a dualmonitor setup where the main monitor is of size 1920x1080, and a secondary monitor with size 1440x900, although suspecting that this does not matter.

Expected: The log should read

"TO FS: CSS size: 300x300, RTT Size: 300x300" bogus_resize_event.html:78
"RESIZED! New CSS size: 1920x1080, RTT Size: 300x300" bogus_resize_event.html:91
"RESIZED! New CSS size: 300x300, RTT Size: 300x300"

without extraneous resize events.

Not sure if I reported this to the proper Component, so please correct me if I got this wrong.


3 years ago
Blocks: 1083015
I expect that issue is that as we transition to fullscreen we do resize events in the usual way, which happens to be partway through the transition...
Component: Graphics → DOM
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