From 5491e0a08e7ca952df8ac60f84623253b32877c4 Mon Sep 17 00:00:00 2001
From: "bryner%netscape.com" <bryner%netscape.com>
Date: Wed, 16 Jan 2002 03:36:50 +0000
Subject: [PATCH] Fix for focus crash bugs 107844, 104297, and 109645.  Make
 sure the window doesn't get deleted out from under us.  r=saari, sr=blizzard.

---
 xpfe/appshell/src/nsWebShellWindow.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/xpfe/appshell/src/nsWebShellWindow.cpp b/xpfe/appshell/src/nsWebShellWindow.cpp
index 28a686713262..60db3e6cb982 100644
--- a/xpfe/appshell/src/nsWebShellWindow.cpp
+++ b/xpfe/appshell/src/nsWebShellWindow.cpp
@@ -575,6 +575,11 @@ nsWebShellWindow::HandleEvent(nsGUIEvent *aEvent)
           nsCOMPtr<nsIDOMWindowInternal> focusedWindow;
           focusController->GetFocusedWindow(getter_AddRefs(focusedWindow));
           if (focusedWindow) {
+            // It's possible for focusing the window to cause it to close.
+            // To avoid holding a pointer to deleted memory, keep a reference
+            // on eventWindow. -bryner
+            nsCOMPtr<nsIWebShellWindow> kungFuDeathGrip(eventWindow);
+
             focusController->SetSuppressFocus(PR_TRUE, "Activation Suppression");
             domWindow->Focus(); // This sets focus, but we'll ignore it.  
                                 // A subsequent activate will cause us to stop suppressing.