481243 - sizemode=maximized causes multiple resize events on startup

Status: RESOLVED WONTFIX

(Core :: Widget, defect)

Description

[Brad Lassey [:blassey] (use needinfo?)]

this is a follow up from bug 477653 which worked around the problem to ignore 1 of the 3 resize events that is sent to Fennec.  It would be great for all xul apps that want a maximized window (common on mobile platforms) to only get one resize event on start up.

quoting the description from bug 477653:

> when using sizemode=maximized in our window define, we see multiple resize
> events on linux and windows mobile.
> 
> http://mxr.mozilla.org/mobile-browser/source/chrome/content/browser.xul#55
> 
> However, when we use fixed sizes like 'width="720" height="420"', there is only
> resize event fired.
> 
> On linux:
> 
> without sizemode=maximized:
> resize: 720x420
> 
> with sizemode=maximized:
> resize: 1025x800
> resize: 1025x800
> resize: 720x420
> 
> This problem was uncovered when we switched from our browser window having a
> fixed size to just using the sizemode attribute in bug:
> 
> https://bugzilla.mozilla.org/show_bug.cgi?id=476705

Comment 1

[Doug Turner (:dougt)]

now we use fullscreen.  brad, do we continue to see these resize events?

Comment 2

[Brad Lassey [:blassey] (use needinfo?)]

with fullscreen I still get 3 resizes:

resize 1023x562
resize 480x640
resize 480x640

Comment 3

[Brad Lassey [:blassey] (use needinfo?)]

its not clear to me that this is a perf problem anymore, although its worth some investigation

Comment 4

[Michael Kohler [:mkohler]]

This is a mass change. Every comment has "assigned-to-new" in it.

I didn't look through the bugs, so I'm sorry if I change a bug which shouldn't be changed. But I guess these bugs are just bugs that were once assigned and people forgot to change the Status back when unassigning.

Comment 5

[Brad Lassey [:blassey] (use needinfo?)]

pushing this to 2.0+ to determine if this is actually a perf problem

Comment 6

[Brad Lassey [:blassey] (use needinfo?)]

best we can tell, this isn't a perf issue anymore