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fix for #17763 - initialize cellFrame so that if it's not found, the null check succeeds

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r=hyatt
a=chofmann
This commit is contained in:
alecf%netscape.com 1999-11-05 21:51:42 +00:00
parent 4ad45bf1ec
commit 06ea39654b
1 changed files with 3 additions and 1 deletions
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4
layout/xul/base/src/nsTreeFrame.cpp
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@ -74,9 +74,11 @@ void nsTreeFrame::SetSelection(nsIPresContext& aPresContext, nsTreeCellFrame* aF
nsCOMPtr<nsIContent> cellContent;
aFrame->GetContent(getter_AddRefs(cellContent));
if (!cellContent) return;
nsCOMPtr<nsIContent> rowContent;
cellContent->GetParent(*getter_AddRefs(rowContent));
if (!rowContent) return;
nsCOMPtr<nsIContent> itemContent;
rowContent->GetParent(*getter_AddRefs(itemContent));
@ -210,7 +212,7 @@ nsTreeFrame::HandleEvent(nsIPresContext& aPresContext,
treeRowGroup->EnsureRowIsVisible(rowIndex);
// Now that the row is scrolled into view, we have a frame created. We can retrieve the cell.
nsTreeCellFrame* cellFrame;
nsTreeCellFrame* cellFrame=nsnull;
treeRowGroup->GetCellFrameAtIndex(rowIndex, cellIndex, &cellFrame);
if (!cellFrame)
return NS_OK; // No cell. Whatever. Bail.