Bug 165624 Provides UI supports for Highlight rule refer to Style element
UI/org.eclipse.birt.report.designer.ui.views/src/org/eclipse/birt/report/designer/internal/ui/views/attributes/provider/HighlightDescriptorProvider.java
{
		private Listener listener;
		public HighlightContentProvider( Listener listener )
		{
			this.listener = listener;
		}
		public Object[] getElements( Object inputElement )
		{
			Object[] elements = HighlightDescriptorProvider.this.getElements( inputElement );
			for ( int i = 0; i < elements.length; i++ )
			{
				if ( elements[i] instanceof DesignElementHandle )
				{
					DesignElementHandle element = (DesignElementHandle) elements[i];
					element.removeListener( listener );
					element.addListener( listener );
				}
			}
			return elements;
		}
		public void inputChanged( Viewer viewer, Object oldInput,
				Object newInput )
		{
		}
		public void dispose( )
		{