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Bug 491960. Only reflow due to selection if we did or will have overflowing selection decorations. r=dbaron

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This commit is contained in:
Robert O'Callahan 2009-05-15 15:09:49 +12:00
parent 6724ca0012
commit 2d82c27e96
1 changed files with 5 additions and 4 deletions
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9
layout/generic/nsTextFrameThebes.cpp
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@ -5032,11 +5032,12 @@ nsTextFrame::SetSelected(nsPresContext* aPresContext,
// If the selection state is changed in this content, we need to reflow
// to recompute the overflow area for underline of spellchecking or IME if
// their underline is thicker than normal decoration line.
PRBool didHaveSelectionUnderline =
!!(mState & TEXT_SELECTION_UNDERLINE_OVERFLOWED);
PRBool didHaveOverflowingSelection =
(mState & TEXT_SELECTION_UNDERLINE_OVERFLOWED) != 0;
nsRect r(nsPoint(0, 0), GetSize());
if (didHaveSelectionUnderline != aSelected ||
(aSelected && CombineSelectionUnderlineRect(PresContext(), r))) {
PRBool willHaveOverflowingSelection =
aSelected && CombineSelectionUnderlineRect(PresContext(), r);
if (didHaveOverflowingSelection || willHaveOverflowingSelection) {
PresContext()->PresShell()->FrameNeedsReflow(this,
nsIPresShell::eStyleChange,
NS_FRAME_IS_DIRTY);