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| author | Moonchild <moonchild@palemoon.org> | 2021-01-26 09:56:37 +0000 |
|---|---|---|
| committer | Moonchild <moonchild@palemoon.org> | 2021-01-26 09:56:37 +0000 |
| commit | c1dd23bd83eddaa5e7908f90775da949c96afd8a (patch) | |
| tree | 25197f53a89af92d958348d6e367efe3d20546ed | |
| parent | dd932e001139845ec4c1bb5acbbb2573d62c74e4 (diff) | |
| download | uxp-c1dd23bd83eddaa5e7908f90775da949c96afd8a.tar.gz | |
[layout, XUL] Avoid accessing invalidated frame.
| -rw-r--r-- | layout/xul/tree/nsTreeBodyFrame.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/layout/xul/tree/nsTreeBodyFrame.cpp b/layout/xul/tree/nsTreeBodyFrame.cpp index b31d1de367..ec054a234e 100644 --- a/layout/xul/tree/nsTreeBodyFrame.cpp +++ b/layout/xul/tree/nsTreeBodyFrame.cpp @@ -1826,12 +1826,17 @@ nsTreeBodyFrame::RowCountChanged(int32_t aIndex, int32_t aCount) FireRowCountChangedEvent(aIndex, aCount); #endif + nsWeakFrame weakFrame(this); + // Adjust our selection. + nsCOMPtr<nsITreeView> view = mView; nsCOMPtr<nsITreeSelection> sel; - mView->GetSelection(getter_AddRefs(sel)); + view->GetSelection(getter_AddRefs(sel)); if (sel) sel->AdjustSelection(aIndex, aCount); + NS_ENSURE_STATE (weakFrame.IsAlive()); + if (mUpdateBatchNest) return NS_OK; |