Bug 37852 – [Qt] Css is completely broken when compiling QtWebKit 2.0 against Qt 4.6

• Status: RESOLVED
• Resolution: DUPLICATE
• Component: CSS

[Jocelyn Turcotte]

Noticed problem by searching around for 20 minutes:


http://webkit.org/blog/138/css-animation/
The "This div will do a spin the first time it is clicked!" disapear instead of rotating

http://webkit.org/blog/324/css-animation-2/
The sample which should show animated leaves have instead all leaves stacked on the left, un-animated, with a boring white background

http://webkit.org
The left menu is not visible, the green gradient background is tiled vertically instead of being glued at the top of the page, many other little stuff

http://girliemac.com/sandbox/snow.html
This one crashes


All these examples runs as expected with Qt 4.7.
Reproduced on Windows.

[Jocelyn Turcotte]

Created attachment 53804 [details]
Stack trace of the snow example crash

this == 0x0 when entering QGraphicsScene::update

[Simon Hausmann]

Kim, Noam, this crash is interesting for you :)

[Kim Grönholm]

I was able to reproduce this. The issue is same than in https://bugs.webkit.org/show_bug.cgi?id=36755

Tested that changing back to Qt::QueuedConnection fixes also these pages.

[Simon Hausmann]

(In reply to comment #3)
> I was able to reproduce this. The issue is same than in
> https://bugs.webkit.org/show_bug.cgi?id=36755
> 
> Tested that changing back to Qt::QueuedConnection fixes also these pages.

That's strange, given that there's no networking in the backtrace at all. Could it be that the QueuedConnection just hides the real bug?

[Kim Grönholm]

Sorry, my bad. I was concentrating on the messed up CSS since that's what the bug title states. The crashing in the snow example seems to be a separate issue and I'm unable to reproduce it on my Ubuntu system with Qt 4.6.2. At least for me it looks like it's totally unrelated to the broken CSS.

[Jocelyn Turcotte]

All these problem seems to be fixed in the latest qtwebkit-2.0 branch.

Resolving as duplicate of 36755 which is now fixed for the css loading issues.

The crash seems to be fixed as well, as Simon suspect it might be the fact that accelerated compositing was wrongly enabled with QWebView.

*** This bug has been marked as a duplicate of bug 36755 ***