Bug 120293 There is no response when I drag an embedded image from library explorer into outline view.
Description: There is no response when I drag an embedded image from library explorer into outline view. Steps to reproduce: 1. Use a library in a report. 2. Drag an embedded image from library explorer into outline view. There is no response. It doesn't take effect.
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DNDUtil.java
if ( selection instanceof ReportElementModel )
		{
			return handleValidateDragInOutline( ( (ReportElementModel) selection ).getSlotHandle( ) );
		}
		if ( selection instanceof SlotHandle )
		{
			SlotHandle slot = (SlotHandle) selection;
			DesignElementHandle handle = slot.getElementHandle( );
			return slot.getContents( ).size( ) > 0
					&& ( handle instanceof ListHandle || handle instanceof ListGroupHandle );
		}
		if ( selection instanceof ColumnHandle )
		{
			int columnNumber = HandleAdapterFactory.getInstance( )
					.getColumnHandleAdapter( selection )
					.getColumnNumber( );
			Object parent = ( (ColumnHandle) selection ).getContainer( );
			if ( parent instanceof TableHandle )
			{
				return ( (TableHandle) parent ).canCopyColumn( columnNumber );
			}
			else if ( parent instanceof GridHandle )
			{
				return ( (GridHandle) parent ).canCopyColumn( columnNumber );
			}
		}
		return selection instanceof ReportItemHandle
				|| selection instanceof DataSetHandle
				|| selection instanceof DataSourceHandle
				|| selection instanceof ScalarParameterHandle