From 23c52d1e2d4378dd22b3a9a5047c4b08ec07d3a5 Mon Sep 17 00:00:00 2001
From: Chani Armitage <chanika@gmail.com>
Date: Sun, 23 Aug 2009 01:13:36 +0000
Subject: [PATCH] guard against use of setParent

svn path=/trunk/KDE/kdelibs/; revision=1014484
---
 containmentactions.cpp | 13 ++++++++++++-
 containmentactions.h   |  2 ++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/containmentactions.cpp b/containmentactions.cpp
index 0c3945d33..fa83abb0b 100644
--- a/containmentactions.cpp
+++ b/containmentactions.cpp
@@ -133,7 +133,7 @@ PackageStructure::Ptr ContainmentActions::packageStructure()
 
 Containment *ContainmentActions::containment()
 {
-    return static_cast<Containment*>(parent());
+    return qobject_cast<Containment*>(parent());
 }
 
 QString ContainmentActions::name() const
@@ -299,6 +299,17 @@ void ContainmentActions::paste(QPointF scenePos, QPoint screenPos)
     }
 }
 
+bool ContainmentActions::event(QEvent *e)
+{
+    if (e->type() == QEvent::ParentChange) {
+        if (!containment()) {
+            //some fool took away our containment. run away, run away!
+            deleteLater();
+        }
+    }
+    return false;
+}
+
 } // Plasma namespace
 
 #include "containmentactions.moc"
diff --git a/containmentactions.h b/containmentactions.h
index 15813ffaf..261c47fc5 100644
--- a/containmentactions.h
+++ b/containmentactions.h
@@ -206,6 +206,8 @@ class PLASMA_EXPORT ContainmentActions : public QObject
          */
         static QString eventToString(QEvent *event);
 
+        bool event(QEvent *e);
+
     protected:
         /**
          * This constructor is to be used with the plugin loading systems