tree 84f186c488d668deee2ec0f0fb44e1db5c3ab74f
parent 93e248316dc5664291f0338f9fd1f41be7511853
author noam.rosenthal@nokia.com <noam.rosenthal@nokia.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1327678540 +0000
committer noam.rosenthal@nokia.com <noam.rosenthal@nokia.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1327678540 +0000

[Qt][WK2] Child layers appear in wrong position when scrolling
https://bugs.webkit.org/show_bug.cgi?id=77063

Reviewed by Simon Fraser.

When using the delegatesScrolling mode in FrameView, the compositor doesn't need
to control the special clip/scroll layers. Also, when we change that mode, we need to let
the compositor reset its backing-stores and rebuild them without scrolling/clipping.

This is tested by compositing tests, when run with Qt in touch mode.

* page/FrameView.cpp:
(WebCore::FrameView::delegatesScrollingDidChange):
(WebCore):
* page/FrameView.h:
(FrameView):
* platform/ScrollView.cpp:
(WebCore::ScrollView::setDelegatesScrolling):
* platform/ScrollView.h:
(WebCore::ScrollView::delegatesScrollingDidChange):
* rendering/RenderLayerCompositor.cpp:
(WebCore::RenderLayerCompositor::requiresScrollLayer):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@106121 268f45cc-cd09-0410-ab3c-d52691b4dbfc