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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


git-svn-id: svn://10.0.0.236/trunk@52866 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
alecf%netscape.com
1999-11-05 21:51:42 +00:00
parent bef3328b2f
commit be87817fb0
1 changed files with 3 additions and 1 deletions
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4
mozilla/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.