Store the containing region map inside the flow thread
https://bugs.webkit.org/show_bug.cgi?id=131647
Reviewed by Mihnea Ovidenie.
Source/WebCore:
The patch moves the containing region map inside the flow thread where
it can be better handled in case the region chain changes and the map
needs to be cleared.
As a result of this move we are able to also cleanup the lines region
information of a block flow when it is removed from the tree.
Test: fast/regions/inline-strike-through.html
* rendering/InlineFlowBox.h:
(WebCore::InlineFlowBox::InlineFlowBox):
* rendering/RenderBlockLineLayout.cpp:
(WebCore::RenderBlockFlow::addOverflowFromInlineChildren):
* rendering/RenderFlowThread.cpp:
(WebCore::RenderFlowThread::removeFlowChildInfo):
(WebCore::RenderFlowThread::invalidateRegions):
(WebCore::RenderFlowThread::removeLineRegionInfo):
(WebCore::RenderFlowThread::checkLinesConsistency):
(WebCore::RenderFlowThread::containingRegionMap):
* rendering/RenderFlowThread.h:
* rendering/RootInlineBox.cpp:
(WebCore::containingRegionMap):
(WebCore::RootInlineBox::~RootInlineBox):
(WebCore::RootInlineBox::paint):
(WebCore::RootInlineBox::containingRegion):
(WebCore::RootInlineBox::clearContainingRegion):
(WebCore::RootInlineBox::setContainingRegion):
LayoutTests:
Add a test that verifies the containing region map is properly cleared
when the region chain changes.
* fast/regions/inline-strike-through-expected.txt: Added.
* fast/regions/inline-strike-through.html: Added.
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@167928 268f45cc-cd09-0410-ab3c-d52691b4dbfc
9 files changed
