Bug 165677 folder is not opened by double click
Data explorer pane contains following tree: + Data Sources - Postgres + Data Sets - Header DS - Chart DS + Report Parameters - Id It is common then if you double click on menu item, that is folder for other menu items (submenu), that it is opened. But in BIRT I can click to Data Sources (Data Sets, Report Params) as many times as I want but it never opens the submenu. In other words, when I doubleclick Data Sets, I want to open it and see which data sets are defined.
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/internal/ui/views/outline/DesignerOutlinePage.java
if ( getSelection( ) instanceof StructuredSelection )
				{
					List list = new ArrayList( );
					list.add( ( (StructuredSelection) getSelection( ) ).getFirstElement( ) );
					ReportRequest r = new ReportRequest( );
					r.setType( ReportRequest.OPEN_EDITOR );
					r.setRequestConvert( new IRequestConvert( ) {
						/*
						 * (non-Javadoc)
						 * 
						 * @see org.eclipse.birt.report.designer.core.util.mediator.request.IRequestConvert#convertSelectionToModelLisr(java.util.List)
						 */
						public List convertSelectionToModelLisr( List list )
						{
							List lst = new ArrayList( );
							for ( Iterator itr = list.iterator( ); itr.hasNext( ); )
							{
								Object obj = itr.next( );
								lst.add( obj );
							}
							return lst;
						}
					} );
					r.setSelectionObject( list );
					SessionHandleAdapter.getInstance( )
							.getMediator( )
							.notifyRequest( r );
				}
			}
		} );