Fix crash when attempting to start the program in the Konsole part before the...

Fix crash when attempting to start the program in the Konsole part before the widget is shown and given focus.  Check SessionController* pointer in the KPart before using it.  When creating a controller in the ViewManager, set it as the active controller if there is no active controller at present.

svn path=/trunk/KDE/kdebase/apps/konsole/; revision=754203

src/Part.cpp

@@ -118,7 +118,16 @@ void Part::newTab()
 }
 Session* Part::activeSession() const
 {
-	return _viewManager->activeViewController()->session();	
+	if ( _viewManager->activeViewController() )
+	{
+		Q_ASSERT( _viewManager->activeViewController()->session());
+
+		return _viewManager->activeViewController()->session();	
+	}
+	else
+	{
+		return 0;
+	}
 }
 void Part::startProgram( const QString& program,
                            const QStringList& arguments )

src/ViewManager.cpp

@@ -463,6 +463,10 @@ SessionController* ViewManager::createController(Session* session , TerminalDisp
     connect( view , SIGNAL(destroyed()) , controller , SLOT(deleteLater()) );
     connect( controller , SIGNAL(sendInputToAll(bool)) , this , SLOT(sendInputToAll()) );
 
+	// if this is the first controller created then set it as the active controller
+	if (!_pluggedController)
+		_pluggedController = controller;
+
     return controller;
 }