taxeditor-editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/media/handler/MoveImageDownInListHandler.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10 package eu.etaxonomy.taxeditor.editor.view.media.handler;
  11 import org.apache.log4j.Logger;
  12 import org.eclipse.core.commands.AbstractHandler;
  13 import org.eclipse.core.commands.ExecutionEvent;
  14 import org.eclipse.core.commands.ExecutionException;
  15 import org.eclipse.core.commands.common.NotDefinedException;
  16 import org.eclipse.jface.viewers.ISelection;
  17 import org.eclipse.jface.viewers.TreePath;
  18 import org.eclipse.jface.viewers.TreeSelection;
  19 import org.eclipse.ui.IEditorInput;
  20 import org.eclipse.ui.IEditorPart;
  21 import org.eclipse.ui.IWorkbenchPart;
  22 import org.eclipse.ui.forms.editor.FormEditor;
  23 import org.eclipse.ui.handlers.HandlerUtil;
  24
  25 import eu.etaxonomy.cdm.model.description.DescriptionBase;
  26 import eu.etaxonomy.cdm.model.media.Media;
  27 import eu.etaxonomy.cdm.model.taxon.Taxon;
  28 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  29 import eu.etaxonomy.taxeditor.editor.TaxonEditorInput;
  30 import eu.etaxonomy.taxeditor.editor.view.descriptive.handler.CreateDescriptionElementHandler;
  31 import eu.etaxonomy.taxeditor.operations.AbstractPostOperation;
  32 import eu.etaxonomy.taxeditor.operations.IPostOperationEnabled;
  33 import eu.etaxonomy.taxeditor.operations.MoveMediaInListOperation;
  34
  35 /**
  36  * <p>MoveImageDownInListHandler class.</p>
  37  *
  38  * @author p.ciardelli
  39  * @created 11.08.2009
  40  * @version 1.0
  41  */
  42 public class MoveImageDownInListHandler extends AbstractHandler {
  43         private static final Logger logger = Logger
  44                         .getLogger(CreateDescriptionElementHandler.class);
  45
  46         /* (non-Javadoc)
  47          * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
  48          */
  49         /** {@inheritDoc} */
  50         public Object execute(ExecutionEvent event) throws ExecutionException {
  51                 IWorkbenchPart part = HandlerUtil.getActivePart(event);
  52                 IPostOperationEnabled postOperationEnabled = (part instanceof IPostOperationEnabled) ? (IPostOperationEnabled) part : null;
  53
  54                 IEditorPart editor = HandlerUtil.getActiveEditor(event);
  55                 if (editor instanceof FormEditor) {
  56                         editor = ((FormEditor) editor).getActiveEditor();
  57                 }
  58                 IEditorInput input = editor.getEditorInput();
  59                 if (input instanceof TaxonEditorInput) {
  60                         Taxon taxon = ((TaxonEditorInput) input).getTaxon();
  61
  62                         ISelection selection = HandlerUtil.getCurrentSelection(event);
  63
  64                         if (selection instanceof TreeSelection) {
  65                                 TreePath[] paths = ((TreeSelection) selection).getPaths();
  66                                 int count = paths[0].getSegmentCount();
  67                                 DescriptionBase description = null;
  68                                 for (int i = 0; i < count; i++ ) {
  69                                         if (paths[0].getSegment(i) instanceof DescriptionBase) {
  70                                                 description = (DescriptionBase) paths[0].getSegment(i);
  71                                                 break;
  72                                         }
  73                                 }
  74                                 Media media = (Media) paths[0].getLastSegment();
  75                                 AbstractPostOperation operation = null;
  76                                 try {
  77                                         // TODO use undo context specific to editor
  78                                         operation = new MoveMediaInListOperation(event.getCommand().getName(),
  79                                                         EditorUtil.getUndoContext(), taxon, description, media, MoveMediaInListOperation.DOWN, postOperationEnabled);
  80                                         EditorUtil.executeOperation(operation);
  81                                 } catch (NotDefinedException e) {
  82                                         logger.warn("Command name not set");
  83                                 }
  84                         }
  85                 }
  86                 return null;
  87         }
  88
  89 }