From 9f48b9dd0213cd3eada78f254cb59e8f83a4cc78 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lubo=C5=A1=20Lu=C5=88=C3=A1k?= <l.lunak@kde.org>
Date: Fri, 5 Jan 2007 16:13:57 +0000
Subject: [PATCH] But now there's a race condition - use a server grab to
 atomatically check if the window still exists and selecting for events on it.

svn path=/branches/work/kwin_composite/; revision=620295
---
 unmanaged.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/unmanaged.cpp b/unmanaged.cpp
index 9c01cd5971..3786517da7 100644
--- a/unmanaged.cpp
+++ b/unmanaged.cpp
@@ -31,10 +31,17 @@ Unmanaged::~Unmanaged()
 bool Unmanaged::track( Window w )
     {
     XWindowAttributes attr;
+    grabXServer();
     if( !XGetWindowAttributes(display(), w, &attr))
+        {
+        ungrabXServer();
         return false;
+        }
     if( attr.c_class == InputOnly )
+        {
+        ungrabXServer();
         return false;
+        }
     setHandle( w );
     XSelectInput( display(), w, StructureNotifyMask );
     geom = QRect( attr.x, attr.y, attr.width, attr.height );
@@ -54,6 +61,7 @@ bool Unmanaged::track( Window w )
         XShapeSelectInput( display(), w, ShapeNotifyMask );
     detectShape( w );
     setupCompositing();
+    ungrabXServer();
     return true;
     }