QmlDesigner.nodeInstanceView: further optimizes import changes

This patch delays the restart of the pupped by 200ms when an import changes.

src/plugins/qmldesigner/designercore/include/nodeinstanceview.h

@@ -41,6 +41,7 @@
 #include <QSet>
 #include <QWeakPointer>
 #include <QRectF>
+#include <QTimer>
 
 QT_BEGIN_NAMESPACE
 class QDeclarativeEngine;
@@ -164,6 +165,7 @@ private: // functions
 
 private slots:
     void restartProcess();
+    void restartProcessDelayed();
 
 private: //variables
     NodeInstance m_rootNodeInstance;
@@ -174,6 +176,7 @@ private: //variables
 
     uint m_blockUpdates;
     QWeakPointer<NodeInstanceServerInterface> m_nodeInstanceServer;
+    QTimer m_resetTimer;
 };
 
 } // namespace ProxyNodeInstanceView

src/plugins/qmldesigner/designercore/instances/nodeinstanceview.cpp

@@ -111,6 +111,9 @@ d too.
 NodeInstanceView::NodeInstanceView(QObject *parent)
         : AbstractView(parent)
 {
+    m_resetTimer.setInterval(200);
+    m_resetTimer.setSingleShot(true);
+    connect(&m_resetTimer, SIGNAL(timeout()), this, SLOT(restartProcessDelayed()));
 }
 
 
@@ -170,6 +173,11 @@ void NodeInstanceView::restartProcess()
     setBlockUpdates(false);
 }
 
+void NodeInstanceView::restartProcessDelayed()
+{
+    m_resetTimer.start();
+}
+
 /*! \brief Notifing the view that a node was created.
   A NodeInstance will be created for the new created ModelNode.
 \param createdNode New created ModelNode.
@@ -437,12 +445,12 @@ void NodeInstanceView::instancesCompleted(const QVector<ModelNode> &/*completedN
 
 void NodeInstanceView::importAdded(const Import &import)
 {
-    restartProcess();
+    restartProcessDelayed();
 }
 
 void NodeInstanceView::importRemoved(const Import &/*import*/)
 {
-    restartProcess();
+    restartProcessDelayed();
 }
 
 //\}