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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.media.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.TreePath;
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import org.eclipse.jface.viewers.TreeSelection;
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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.DescriptionBase;
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import eu.etaxonomy.cdm.model.media.Media;
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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.media.operation.MoveMediaInListOperation;
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import eu.etaxonomy.taxeditor.model.MessagingUtils;
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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>MoveImageUpInListHandler class.</p>
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*
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* @author p.ciardelli
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* @created 11.08.2009
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* @version 1.0
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*/
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public class MoveImageUpInListHandler extends AbstractHandler {
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/* (non-Javadoc)
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* @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.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 : 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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ISelection selection = HandlerUtil.getCurrentSelection(event);
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if (selection instanceof TreeSelection) {
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TreePath[] paths = ((TreeSelection) selection).getPaths();
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int count = paths[0].getSegmentCount();
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DescriptionBase element = null;
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for (int i = 0; i < count; i++ ) {
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if (paths[0].getSegment(i) instanceof DescriptionBase) {
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element = (DescriptionBase) paths[0].getSegment(i);
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break;
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}
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}
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Media media = (Media) paths[0].getLastSegment();
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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 MoveMediaInListOperation(event.getCommand().getName(),
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EditorUtil.getUndoContext(), taxon, element, media, MoveMediaInListOperation.UP, postOperationEnabled);
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EditorUtil.executeOperation(operation);
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} catch (NotDefinedException e) {
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MessagingUtils.warn(getClass(), "Command name not set.");
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}
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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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