Bug 135252 [Regression]Focus will lost when switching to script view
Steps to reproduce: 1.Select a data set 2.Click "Script" tab Expected result: Script view for the data set shows up Actual result: The focus on data set lost
UI/org.eclipse.birt.report.designer.ui.editors.schematic/src/org/eclipse/birt/report/designer/ui/editors/pages/ReportScriptFormPage.java
if ( model == null )
		{
			IReportProvider provider = getProvider( );
			if ( provider != null )
			{
				model = provider.getReportModuleHandle( getEditorInput( ) );
			}
		}
		return model;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.part.EditorPart#doSaveAs()
	 */
	public void doSaveAs( )
	{
		IReportProvider provider = getProvider( );
		if ( provider != null )
		{
			IPath path = provider.getSaveAsPath( getEditorInput( ) );
			if ( path == null )
			{
				return;
			}
			final IEditorInput input = provider.createNewEditorInput( path );
			setInput( input );
			IRunnableWithProgress op = new IRunnableWithProgress( ) {
				public synchronized final void run( IProgressMonitor monitor )
						throws InvocationTargetException, InterruptedException