eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/view/CdmViewerContextMenu.java

   1 package eu.etaxonomy.taxeditor.view;
   2
   3 import java.util.HashMap;
   4 import java.util.Map;
   5 import java.util.Map.Entry;
   6 import java.util.UUID;
   7
   8 import org.eclipse.core.commands.Command;
   9 import org.eclipse.core.commands.ParameterizedCommand;
  10 import org.eclipse.core.commands.common.NotDefinedException;
  11 import org.eclipse.jface.action.ContributionItem;
  12 import org.eclipse.jface.action.IContributionItem;
  13 import org.eclipse.jface.viewers.ISelection;
  14 import org.eclipse.jface.viewers.IStructuredSelection;
  15 import org.eclipse.swt.SWT;
  16 import org.eclipse.swt.events.SelectionAdapter;
  17 import org.eclipse.swt.events.SelectionEvent;
  18 import org.eclipse.swt.widgets.Menu;
  19 import org.eclipse.swt.widgets.MenuItem;
  20 import org.eclipse.ui.IWorkbenchWindow;
  21 import org.eclipse.ui.PlatformUI;
  22 import org.eclipse.ui.actions.CompoundContributionItem;
  23 import org.eclipse.ui.handlers.IHandlerService;
  24
  25 import eu.etaxonomy.cdm.api.service.IOccurrenceService;
  26 import eu.etaxonomy.cdm.api.service.ITaxonService;
  27 import eu.etaxonomy.cdm.model.common.ICdmBase;
  28 import eu.etaxonomy.cdm.model.occurrence.SpecimenOrObservationBase;
  29 import eu.etaxonomy.cdm.model.taxon.Synonym;
  30 import eu.etaxonomy.cdm.model.taxon.Taxon;
  31 import eu.etaxonomy.cdm.persistence.dto.UuidAndTitleCache;
  32 import eu.etaxonomy.taxeditor.Messages;
  33 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  34 import eu.etaxonomy.taxeditor.store.CdmStore;
  35
  36 /**
  37  * Generic context menu for opening elements in the taxeditor.
  38  *
  39  */
  40 public class CdmViewerContextMenu extends CompoundContributionItem {
  41
  42     @Override
  43     protected IContributionItem[] getContributionItems() {
  44         IContributionItem[] contributionItems = new IContributionItem[] {
  45                 new ContributionItem() {
  46                     @Override
  47                     public void fill(Menu menu, int index) {
  48                         final IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  49                         final ISelection selection = window.getActivePage().getSelection();
  50                         if(selection instanceof IStructuredSelection){
  51                             Object firstElement = ((IStructuredSelection) selection).getFirstElement();
  52                             Map<Command, String> enabledCommands = CdmViewerUtil.getAvailableViewers(firstElement);
  53
  54                             //check if only one or multiple viewers/commands are available
  55                             if(enabledCommands.size()==1){
  56                                 Entry<Command, String> entry = enabledCommands.entrySet().iterator().next();
  57                                 final Command command = entry.getKey();
  58                                 String viewerName = entry.getValue();
  59
  60                                 MenuItem addItem = new MenuItem(menu, SWT.CASCADE);
  61                                 addItem.setText(String.format(Messages.CdmViewerContextMenu_OPEN, viewerName));
  62                                 addItem.addSelectionListener(new CommandInvoker(command, firstElement)) ;
  63                             }
  64                             else if(enabledCommands.size()>1){
  65                                 MenuItem addItem = new MenuItem(menu, SWT.CASCADE);
  66                                 addItem.setText(Messages.CdmViewerContextMenu_OPEN_IN);
  67                                 Menu addMenu = new Menu(menu);
  68                                 addItem.setMenu(addMenu);
  69                                 for(Entry<Command, String> entry:enabledCommands.entrySet()){
  70                                     final Command command = entry.getKey();
  71                                     String viewerName = entry.getValue();
  72
  73                                     MenuItem menuItem = new MenuItem(addMenu, SWT.NONE);
  74                                     menuItem.setText(viewerName);
  75                                     menuItem.addSelectionListener(new CommandInvoker(command, firstElement)) ;
  76                                 }
  77                             }
  78                         }
  79                     }
  80
  81                 }
  82         };
  83         return contributionItems;
  84     }
  85
  86     private final class CommandInvoker extends SelectionAdapter {
  87         private final Command command;
  88         private Object selectedObject;
  89
  90         private CommandInvoker(Command command, Object selectedObject) {
  91             this.command = command;
  92             this.selectedObject = selectedObject;
  93         }
  94
  95         @Override
  96         public void widgetSelected(SelectionEvent e) {
  97             IHandlerService handlerService = (IHandlerService)PlatformUI.getWorkbench().getService(IHandlerService.class);
  98             Map<String, UUID> params = new HashMap<String, UUID>();
  99             //for generic UuidAndTitleCache objects try to load the object
 100             if (selectedObject instanceof UuidAndTitleCache){
 101                 UuidAndTitleCache uuidAndTitleCache = (UuidAndTitleCache)selectedObject;
 102                 Class type = uuidAndTitleCache.getType();
 103                 if(type == Taxon.class || type == Synonym.class){
 104                     selectedObject = CdmStore.getService(ITaxonService.class).load(uuidAndTitleCache.getUuid());
 105                 }
 106                 else if(SpecimenOrObservationBase.class.isAssignableFrom(type)){
 107                     selectedObject = CdmStore.getService(IOccurrenceService.class).load(uuidAndTitleCache.getUuid());
 108                 }
 109             }
 110             if(selectedObject instanceof ICdmBase){
 111                 params.put(command.getId()+".uuid", ((ICdmBase) selectedObject).getUuid()); //$NON-NLS-1$
 112             }
 113             ParameterizedCommand parameterizedCommand = ParameterizedCommand.generateCommand(command, params);
 114             try {
 115                 if(parameterizedCommand!=null){
 116                     handlerService.executeCommand(parameterizedCommand, null);
 117                 }
 118                 else{
 119                     handlerService.executeCommand(command.getId(), null);
 120                 }
 121             } catch (NotDefinedException nde) {
 122                 throw new RuntimeException("Could not find open command: " + command.getId()); //$NON-NLS-1$
 123             } catch (Exception exception) {
 124                 MessagingUtils.error(getClass(), "An exception occured while trying execute "+command.getId(), exception); //$NON-NLS-1$
 125             }
 126             PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getSelection();
 127         }
 128     }
 129
 130 }