Merge branch '4.7' of scm.dev.nokia.troll.no:qt/qt-qml into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/qt-qml:
  Don't crash if an item is removed from the scene while it is gaining focus.
  Add missing snippet file
  Snake game cannot be restarted

3 files changed, 80 insertions, 2 deletions

diff --git a/demos/declarative/snake/snake.qml b/demos/declarative/snake/snake.qml
index 46114f5..b1344af 100644
--- a/demos/declarative/snake/snake.qml
+++ b/demos/declarative/snake/snake.qml
@@ -208,17 +208,30 @@ Rectangle {
     Keys.onUpPressed: if (state == "starting" || direction != 2) Logic.scheduleDirection(0);
     Keys.onDownPressed: if (state == "starting" || direction != 0) Logic.scheduleDirection(2);
 
+    Connections {
+        target: startHeartbeatTimer
+        onRunningChanged: {
+            if (startHeartbeatTimer.running)
+                screen.state = "starting";
+            else
+                screen.state = "running"
+        }
+    }
+    Connections {
+        target: heartbeat
+        onRunningChanged: if (!heartbeat.running) screen.state = "";
+    }
+
+
     states: [
         State {
             name: "starting"
-            when: startHeartbeatTimer.running
             PropertyChanges {target: progressIndicator; width: 200}
             PropertyChanges {target: title; opacity: 0}
             PropertyChanges {target: progressBar; opacity: 1}
         },
         State {
             name: "running"
-            when: (heartbeat.running && !startHeartbeatTimer.running)
             PropertyChanges {target: progressIndicator; width: 200}
             PropertyChanges {target: title; opacity: 0}
             PropertyChanges {target: skull; row: 0; column: 0; }
diff --git a/doc/src/snippets/declarative/SelfDestroyingRect.qml b/doc/src/snippets/declarative/SelfDestroyingRect.qml
new file mode 100644
index 0000000..f14d2d2
--- /dev/null
+++ b/doc/src/snippets/declarative/SelfDestroyingRect.qml
@@ -0,0 +1,60 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+//![0]
+import Qt 4.7
+
+Rectangle {
+    id: rect
+    width: 80; height: 80
+    color: "red"
+
+    NumberAnimation on opacity { 
+        to: 0
+        duration: 1000 
+
+        onRunningChanged: {
+            if (!running) {
+                console.log("Destroying...")
+                rect.destroy();
+            }
+        }
+    }
+}
+//![0]
diff --git a/src/gui/graphicsview/qgraphicsscene.cpp b/src/gui/graphicsview/qgraphicsscene.cpp
index 48a0093..a98ce6f 100644
--- a/src/gui/graphicsview/qgraphicsscene.cpp
+++ b/src/gui/graphicsview/qgraphicsscene.cpp
@@ -831,6 +831,11 @@ void QGraphicsScenePrivate::setFocusItemHelper(QGraphicsItem *item,
 #endif //QT_NO_IM
     }
 
+    // This handles the case that the item has been removed from the
+    // scene in response to the FocusOut event.
+    if (item && item->scene() != q)
+        item = 0;
+
     if (item)
         focusItem = item;
     updateInputMethodSensitivityInViews();