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Backed out changeset 6d2fc524e961 (bug 1022612)

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This commit is contained in:
Carsten "Tomcat" Book 2014-07-15 10:30:46 +02:00
parent 2429264279
commit f47b379c1a
1 changed files with 13 additions and 14 deletions
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27
layout/generic/nsPageFrame.cpp
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@ -414,22 +414,22 @@ PruneDisplayListForExtraPage(nsDisplayListBuilder* aBuilder,
aList->AppendToTop(&newList);
}
static void
static nsresult
BuildDisplayListForExtraPage(nsDisplayListBuilder* aBuilder,
nsPageFrame* aPage, nsIFrame* aExtraPage,
const nsRect& aDirtyRect, nsDisplayList* aList)
nsDisplayList* aList)
{
// The only content in aExtraPage we care about is out-of-flow content whose
// placeholders have occurred in aPage. If
// NS_FRAME_FORCE_DISPLAY_LIST_DESCEND_INTO is not set, then aExtraPage has
// no such content.
if (!aExtraPage->HasAnyStateBits(NS_FRAME_FORCE_DISPLAY_LIST_DESCEND_INTO)) {
return;
}
nsDisplayList list;
aExtraPage->BuildDisplayListForStackingContext(aBuilder, aDirtyRect, &list);
// Pass an empty dirty rect since we're only interested in finding
// placeholders whose out-of-flows are in the page
// aBuilder->GetReferenceFrame(), and the paths to those placeholders
// have already been marked as NS_FRAME_FORCE_DISPLAY_LIST_DESCEND_INTO.
// Note that we should still do a prune step since we don't want to
// rely on dirty-rect checking for correctness.
aExtraPage->BuildDisplayListForStackingContext(aBuilder, nsRect(), &list);
PruneDisplayListForExtraPage(aBuilder, aPage, aExtraPage, &list);
aList->AppendToTop(&list);
return NS_OK;
}
static nsIFrame*
@ -506,8 +506,8 @@ nsPageFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
clipState.Clear();
clipState.ClipContainingBlockDescendants(clipRect, nullptr);
nsRect dirtyRect = child->GetVisualOverflowRectRelativeToSelf();
child->BuildDisplayListForStackingContext(aBuilder, dirtyRect, &content);
child->BuildDisplayListForStackingContext(aBuilder,
child->GetVisualOverflowRectRelativeToSelf(), &content);
// We may need to paint out-of-flow frames whose placeholders are
// on other pages. Add those pages to our display list. Note that
@ -518,8 +518,7 @@ nsPageFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
// following placeholders to their out-of-flows) end up on the list.
nsIFrame* page = child;
while ((page = GetNextPage(page)) != nullptr) {
BuildDisplayListForExtraPage(aBuilder, this, page,
dirtyRect + child->GetOffsetTo(page), &content);
BuildDisplayListForExtraPage(aBuilder, this, page, &content);
}
// Add the canvas background color to the bottom of the list. This