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Null-check before calling GetPrimaryFrameFor(). b=362800 r+sr=roc

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mats.palmgren%bredband.net 2007-01-05 15:50:29 +00:00
parent 4bd09f70d5
commit 2125ae0a61
1 changed files with 3 additions and 2 deletions
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5
content/events/src/nsEventStateManager.cpp
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@ -3977,8 +3977,9 @@ nsEventStateManager::SetContentState(nsIContent *aContent, PRInt32 aState)
if (!mPresContext || mPresContext->IsDynamic()) {
newHover = aContent;
} else {
nsIFrame *frame = mPresContext->PresShell()->GetPrimaryFrameFor(aContent);
if (nsLayoutUtils::IsViewportScrollbarFrame(frame)) {
nsIFrame *frame = aContent ?
mPresContext->PresShell()->GetPrimaryFrameFor(aContent) : nsnull;
if (frame && nsLayoutUtils::IsViewportScrollbarFrame(frame)) {
// The scrollbars of viewport should not ignore the hover state.
// Because they are *not* the content of the web page.
newHover = aContent;