From f6b5ff74f3cb97495fa437700e89392fb5fd0882 Mon Sep 17 00:00:00 2001
From: "dcone%netscape.com" <dcone%netscape.com>
Date: Fri, 3 Dec 1999 15:55:37 +0000
Subject: [PATCH] Fixed and invalidate in showwindow.  r=sfraser,rods.
 Bug=18971 (pdt+)

---
 widget/src/mac/nsMacWindow.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/widget/src/mac/nsMacWindow.cpp b/widget/src/mac/nsMacWindow.cpp
index 527970a4032e..4c4739699488 100644
--- a/widget/src/mac/nsMacWindow.cpp
+++ b/widget/src/mac/nsMacWindow.cpp
@@ -542,8 +542,21 @@ NS_IMETHODIMP nsMacWindow::Show(PRBool bState)
   {
     if ( mAcceptsActivation )
     {
+    Rect	windowrect;
+    Point	topleft,botright;
+    
       ::ShowWindow(mWindowPtr);
       ::SelectWindow(mWindowPtr);
+      windowrect = (**((WindowPeek)mWindowPtr)->contRgn).rgnBBox;
+      
+      // on some windows (with pop ups) the ::ShowWindow will not invalidate the parent 
+      // properly
+      topleft = topLeft(windowrect);
+      GlobalToLocal(&topleft);
+      botright = botRight(windowrect);
+      GlobalToLocal(&botright);
+      SetRect(&windowrect,topleft.h,topleft.v,botright.h,botright.v);
+      ::InvalRect(&windowrect);
     }
     else
     {