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// $Id$
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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.editor.view.descriptive.handler;
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import org.eclipse.core.commands.AbstractHandler;
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import org.eclipse.core.commands.ExecutionEvent;
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import org.eclipse.core.commands.ExecutionException;
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import org.eclipse.core.commands.common.NotDefinedException;
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import org.eclipse.jface.viewers.ISelection;
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import org.eclipse.jface.viewers.IStructuredSelection;
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import org.eclipse.jface.viewers.ITreeSelection;
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import org.eclipse.jface.viewers.TreePath;
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import org.eclipse.swt.widgets.Event;
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import org.eclipse.ui.IEditorInput;
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import org.eclipse.ui.IEditorPart;
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import org.eclipse.ui.IWorkbenchPart;
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import org.eclipse.ui.forms.editor.FormEditor;
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import org.eclipse.ui.handlers.HandlerUtil;
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import eu.etaxonomy.cdm.model.description.Feature;
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import eu.etaxonomy.cdm.model.description.TaxonDescription;
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import eu.etaxonomy.cdm.model.taxon.Taxon;
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import eu.etaxonomy.taxeditor.editor.EditorUtil;
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import eu.etaxonomy.taxeditor.editor.TaxonEditorInput;
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import eu.etaxonomy.taxeditor.editor.view.descriptive.operation.CreateDescriptionElementOperation;
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import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
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import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;
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/**
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* <p>CreateDescriptionElementHandler class.</p>
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*
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* @author n.hoffmann
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* @created 16.04.2009
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* @version 1.0
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*/
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public class CreateDescriptionElementHandler extends AbstractHandler {
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/*
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* (non-Javadoc)
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*
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* @see
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* org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.
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* ExecutionEvent)
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*/
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/** {@inheritDoc} */
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public Object execute(ExecutionEvent event) throws ExecutionException {
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IWorkbenchPart part = HandlerUtil.getActivePart(event);
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IPostOperationEnabled postOperationEnabled = (part instanceof IPostOperationEnabled) ? (IPostOperationEnabled) part
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: null;
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IEditorPart editor = HandlerUtil.getActiveEditor(event);
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if (editor instanceof FormEditor) {
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editor = ((FormEditor) editor).getActiveEditor();
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}
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IEditorInput input = editor.getEditorInput();
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if (input instanceof TaxonEditorInput) {
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Taxon taxon = ((TaxonEditorInput) input).getTaxon();
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TaxonDescription description = null;
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ISelection selection = HandlerUtil.getActiveMenuSelection(event);
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if (selection instanceof ITreeSelection) {
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TreePath[] paths = ((ITreeSelection) selection).getPaths();
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Object firstSegment = paths[0].getFirstSegment();
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if (firstSegment instanceof TaxonDescription) {
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description = (TaxonDescription) firstSegment;
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}
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}else if (selection instanceof IStructuredSelection) {
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Object selectedElement = ((IStructuredSelection) selection)
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.getFirstElement();
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if (selectedElement instanceof TaxonDescription){
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description = (TaxonDescription) selectedElement;
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}
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}
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if (description != null) {
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Feature feature = (Feature) ((Event) event.getTrigger()).data;
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AbstractPostOperation operation = null;
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try {
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// TODO use undo context specific to editor
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operation = new CreateDescriptionElementOperation(event
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.getCommand().getName(),
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EditorUtil.getUndoContext(), taxon,
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description, feature, postOperationEnabled);
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EditorUtil.executeOperation(operation);
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} catch (NotDefinedException e) {
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EditorUtil.warn(getClass(), "Command name not set");
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}
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} else {
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EditorUtil.error(getClass(), new IllegalArgumentException("Could not determine the taxon description"));
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return null;
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}
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}
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return null;
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}
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}
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