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/src/org/eclipse/birt/report/designer/ui/editors/MultiPageReportEditor.java
{
			Object adapter = getOutlinePage( );
			updateOutLineView( getActivePageInstance( ) );
			return adapter;
		}
		if ( type == DataViewPage.class )
		{
			Object adapter = getDataPage( );
			updateDateView( getActivePageInstance( ) );
			return adapter;
		}
		if ( getActivePageInstance( ) != null )
		{
			return getActivePageInstance( ).getAdapter( type );
		}
		return super.getAdapter( type );
	}
	private void updateDateView( IFormPage activePageInstance )
	{
		if ( dataPage == null )
		{
			return;
		}
		Object adapter = activePageInstance.getAdapter( DataViewPage.class );
		dataPage.setActivePage( (IPageBookViewPage) adapter );
	}
	private void updateOutLineView( IFormPage activePageInstance )
	{
		if ( outlinePage == null )
		{