eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/descriptive/handler/DeleteHandler.java

   1 /**
   2 * Copyright (C) 2007 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9
  10 package eu.etaxonomy.taxeditor.editor.view.descriptive.handler;
  11
  12 import java.util.ArrayList;
  13 import java.util.List;
  14
  15 import org.eclipse.core.commands.AbstractHandler;
  16 import org.eclipse.core.commands.ExecutionEvent;
  17 import org.eclipse.core.commands.ExecutionException;
  18 import org.eclipse.core.commands.common.NotDefinedException;
  19 import org.eclipse.core.commands.operations.IUndoContext;
  20 import org.eclipse.jface.viewers.IStructuredSelection;
  21 import org.eclipse.jface.viewers.TreePath;
  22 import org.eclipse.jface.viewers.TreeSelection;
  23 import org.eclipse.ui.IWorkbenchPart;
  24 import org.eclipse.ui.handlers.HandlerUtil;
  25
  26 import eu.etaxonomy.cdm.api.service.config.MediaDeletionConfigurator;
  27 import eu.etaxonomy.cdm.model.description.DescriptionBase;
  28 import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
  29 import eu.etaxonomy.cdm.model.description.SpecimenDescription;
  30 import eu.etaxonomy.cdm.model.description.TaxonDescription;
  31 import eu.etaxonomy.cdm.model.media.Media;
  32 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  33 import eu.etaxonomy.taxeditor.editor.l10n.Messages;
  34 import eu.etaxonomy.taxeditor.editor.view.descriptive.operation.DeleteDescriptionElementOperation;
  35 import eu.etaxonomy.taxeditor.editor.view.descriptive.operation.DeleteSpecimenDescriptionOperation;
  36 import eu.etaxonomy.taxeditor.editor.view.descriptive.operation.DeleteTaxonDescriptionOperation;
  37 import eu.etaxonomy.taxeditor.editor.view.media.operation.DeleteMediaOperation;
  38 import eu.etaxonomy.taxeditor.editor.view.media.operation.RemoveImageFromDescriptionElementOperation;
  39 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  40 import eu.etaxonomy.taxeditor.model.FeatureNodeContainer;
  41 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  42 import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
  43 import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;
  44 import eu.etaxonomy.taxeditor.session.ICdmEntitySessionEnabled;
  45 import eu.etaxonomy.taxeditor.ui.dialog.configurator.deleteConfigurator.DeleteConfiguratorDialog;
  46
  47 /**
  48  * <p>DeleteDescriptionHandler class.</p>
  49  *
  50  * @author n.hoffmann
  51  * @created Jun 22, 2010
  52  * @version 1.0
  53  */
  54 public class DeleteHandler extends AbstractHandler {
  55
  56         /* (non-Javadoc)
  57          * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
  58          */
  59         /** {@inheritDoc} */
  60         @Override
  61     public Object execute(ExecutionEvent event) throws ExecutionException {
  62                 IStructuredSelection selection = (IStructuredSelection) HandlerUtil.getActiveSite(event).getSelectionProvider().getSelection();
  63
  64                 IWorkbenchPart part = HandlerUtil.getActivePart(event);
  65                 IPostOperationEnabled postOperationEnabled = (part instanceof IPostOperationEnabled) ? (IPostOperationEnabled) part : null;
  66                 ICdmEntitySessionEnabled cdmEntitySessionEnabled = (part instanceof ICdmEntitySessionEnabled) ? (ICdmEntitySessionEnabled) part : null;
  67
  68                 try {
  69                         String label = event.getCommand().getName();
  70
  71                         IUndoContext undoContext = EditorUtil.getUndoContext();
  72
  73                         List<AbstractPostOperation<?>> operations = new ArrayList<AbstractPostOperation<?>>();
  74
  75                         for(Object object : selection.toArray()){
  76
  77                                 // TaxonDescription
  78                                 if(object instanceof TaxonDescription){
  79                                         operations.add(new DeleteTaxonDescriptionOperation(label, undoContext, (TaxonDescription) object, postOperationEnabled, cdmEntitySessionEnabled));
  80                                 }
  81                                 else if(object instanceof SpecimenDescription){
  82                                     operations.add(new DeleteSpecimenDescriptionOperation(label, undoContext, (SpecimenDescription) object, postOperationEnabled, cdmEntitySessionEnabled)) ;
  83                                 }
  84                                 // DescriptionElementBase
  85                                 else if(object instanceof DescriptionElementBase){
  86                                         operations.add(new DeleteDescriptionElementOperation(label, undoContext, (DescriptionElementBase) object, postOperationEnabled, cdmEntitySessionEnabled));
  87                                 }
  88                                 else if(object instanceof FeatureNodeContainer){
  89                                         List<DescriptionElementBase> descriptions = ((FeatureNodeContainer) object).getDescriptionElementsForEntireBranch();
  90
  91                                         for(DescriptionElementBase description : descriptions){
  92                                                 operations.add(new DeleteDescriptionElementOperation(label, undoContext, description, postOperationEnabled, cdmEntitySessionEnabled));
  93                                         }
  94                                 }
  95                                 // Media
  96                                 else if(object instanceof Media){
  97                                         TreeSelection treeSelection = (TreeSelection) selection;
  98
  99                                         TreePath[] path = treeSelection.getPathsFor(object);
 100
 101                                         DescriptionBase<?> imageGallery = (DescriptionBase<?>) path[0].getFirstSegment();
 102
 103                                         // TODO use undo context specific to editor
 104                     MediaDeletionConfigurator config = new MediaDeletionConfigurator();
 105
 106                     if (!DeleteConfiguratorDialog.openConfirmWithConfigurator(config, HandlerUtil.getActiveShell(event), Messages.DeleteHandler_CONFIRM_DELETION,  Messages.DeleteHandler_CONFIRM_DELETION_MESSAGE)){
 107                         return null;
 108                     }
 109
 110
 111
 112                     if (config.isOnlyRemoveFromGallery() || ((Media)object).getId() == 0){
 113                         operations.add(new RemoveImageFromDescriptionElementOperation(label, undoContext,  (Media) object, imageGallery, postOperationEnabled));
 114                     }else{
 115                         operations.add(new DeleteMediaOperation(label, undoContext, imageGallery, (Media) object, config, postOperationEnabled));
 116                     }
 117
 118
 119
 120                                 }
 121                                 else{
 122                                         MessagingUtils.error(getClass(), Messages.DeleteHandler_INVALID_SELECTION, null);
 123                                 }
 124                         }
 125
 126                         // execute all cumulated operations
 127                         for(AbstractPostOperation<?> operation : operations){
 128                                 AbstractUtility.executeOperation(operation);
 129                         }
 130
 131                 } catch (NotDefinedException e) {
 132                         MessagingUtils.warn(getClass(), "Command name not set."); //$NON-NLS-1$
 133                 }
 134
 135
 136                 return null;
 137         }
 138 }