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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.e4.handler;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import javax.inject.Named;
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import org.eclipse.core.commands.operations.IUndoContext;
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import org.eclipse.e4.core.di.annotations.CanExecute;
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import org.eclipse.e4.core.di.annotations.Execute;
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import org.eclipse.e4.core.di.annotations.Optional;
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import org.eclipse.e4.ui.di.UISynchronize;
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import org.eclipse.e4.ui.model.application.ui.basic.MPart;
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import org.eclipse.e4.ui.model.application.ui.menu.MHandledMenuItem;
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import org.eclipse.e4.ui.model.application.ui.menu.MMenuItem;
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import org.eclipse.e4.ui.services.IServiceConstants;
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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.TreePath;
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import org.eclipse.jface.viewers.TreeSelection;
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import org.eclipse.swt.widgets.Shell;
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import eu.etaxonomy.cdm.api.service.config.MediaDeletionConfigurator;
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import eu.etaxonomy.cdm.model.description.DescriptionBase;
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import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
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import eu.etaxonomy.cdm.model.description.SpecimenDescription;
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import eu.etaxonomy.cdm.model.description.TaxonDescription;
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import eu.etaxonomy.cdm.model.description.TaxonNameDescription;
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import eu.etaxonomy.cdm.model.media.Media;
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import eu.etaxonomy.taxeditor.editor.EditorUtil;
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import eu.etaxonomy.taxeditor.editor.l10n.Messages;
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import eu.etaxonomy.taxeditor.editor.view.descriptive.e4.FactualDataPartE4;
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import eu.etaxonomy.taxeditor.editor.view.descriptive.operation.DeleteDescriptionElementOperation;
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import eu.etaxonomy.taxeditor.editor.view.descriptive.operation.DeleteSpecimenDescriptionOperation;
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import eu.etaxonomy.taxeditor.editor.view.descriptive.operation.DeleteTaxonDescriptionOperation;
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import eu.etaxonomy.taxeditor.editor.view.media.operation.DeleteMediaOperation;
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import eu.etaxonomy.taxeditor.editor.view.media.operation.RemoveImageFromDescriptionElementOperation;
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import eu.etaxonomy.taxeditor.model.AbstractUtility;
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import eu.etaxonomy.taxeditor.model.FeatureNodeContainer;
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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.session.ICdmEntitySessionEnabled;
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import eu.etaxonomy.taxeditor.ui.dialog.configurator.deleteConfigurator.DeleteConfiguratorDialog;
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/**
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*
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* @author pplitzner
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* @date 15.08.2017
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*
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*/
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public class DeleteHandlerE4 {
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@Execute
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public void execute(@Named(IServiceConstants.ACTIVE_PART) MPart activePart,
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@Named(IServiceConstants.ACTIVE_SHELL)Shell shell, MMenuItem menuItem,
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UISynchronize sync) {
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FactualDataPartE4 factualDataPart = (FactualDataPartE4) activePart.getObject();
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IStructuredSelection selection = (IStructuredSelection) factualDataPart.getViewer().getSelection();
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Object selectionProvidingPart = factualDataPart.getSelectionProvidingPart();
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ICdmEntitySessionEnabled cdmEntitySessionEnabled = null;
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if(selectionProvidingPart instanceof ICdmEntitySessionEnabled){
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cdmEntitySessionEnabled = (ICdmEntitySessionEnabled) selectionProvidingPart;
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}
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String label = menuItem.getLocalizedLabel();
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IUndoContext undoContext = EditorUtil.getUndoContext();
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List<AbstractPostOperation<?>> operations = new ArrayList<AbstractPostOperation<?>>();
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for(Iterator iter = selection.iterator();iter.hasNext();){
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Object object = iter.next();
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// TaxonDescription
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if(object instanceof TaxonDescription){
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operations.add(new DeleteTaxonDescriptionOperation(label, undoContext, (TaxonDescription) object, factualDataPart, cdmEntitySessionEnabled));
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}
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else if(object instanceof SpecimenDescription){
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operations.add(new DeleteSpecimenDescriptionOperation(label, undoContext, (SpecimenDescription) object, factualDataPart, cdmEntitySessionEnabled)) ;
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}
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// DescriptionElementBase
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else if(object instanceof DescriptionElementBase){
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operations.add(new DeleteDescriptionElementOperation(label, undoContext, (DescriptionElementBase) object, factualDataPart, cdmEntitySessionEnabled));
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}
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else if(object instanceof FeatureNodeContainer){
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List<DescriptionElementBase> descriptions = ((FeatureNodeContainer) object).getDescriptionElementsForEntireBranch();
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for(DescriptionElementBase description : descriptions){
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operations.add(new DeleteDescriptionElementOperation(label, undoContext, description, factualDataPart, cdmEntitySessionEnabled));
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}
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}
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// Media
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else if(object instanceof Media){
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TreeSelection treeSelection = (TreeSelection) factualDataPart.getViewer().getSelection();
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TreePath[] path = treeSelection.getPathsFor(object);
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DescriptionBase<?> imageGallery = (DescriptionBase<?>) path[0].getFirstSegment();
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MediaDeletionConfigurator config = new MediaDeletionConfigurator();
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config.setDeleteFromDescription(true);
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config.setOnlyRemoveFromGallery(false);
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if (imageGallery instanceof SpecimenDescription){
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config.setDeleteFrom(((SpecimenDescription)imageGallery).getDescribedSpecimenOrObservation());
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} else if (imageGallery instanceof TaxonDescription){
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config.setDeleteFrom(((TaxonDescription)imageGallery).getTaxon());
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}else if (imageGallery instanceof TaxonNameDescription){
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config.setDeleteFrom(((TaxonNameDescription)imageGallery).getTaxonName());
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}
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if (!DeleteConfiguratorDialog.openConfirmWithConfigurator(config, shell, Messages.DeleteHandler_CONFIRM_DELETION, Messages.DeleteHandler_CONFIRM_DELETION_MESSAGE)){
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return;
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}
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if (config.isOnlyRemoveFromGallery() || ((Media)object).getId() == 0){
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operations.add(new RemoveImageFromDescriptionElementOperation(label, undoContext, (Media) object, imageGallery, factualDataPart));
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}else{
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operations.add(new DeleteMediaOperation(label, undoContext, imageGallery, (Media) object, config, factualDataPart));
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}
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}
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else{
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MessagingUtils.error(getClass(), Messages.DeleteHandler_INVALID_SELECTION, null);
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}
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}
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// execute all cumulated operations
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for(AbstractPostOperation<?> operation : operations){
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AbstractUtility.executeOperation(operation, sync);
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}
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}
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@CanExecute
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public boolean canExecute(@Optional @Named(IServiceConstants.ACTIVE_PART) MPart activePart,
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MHandledMenuItem menuItem){
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FactualDataPartE4 factualDataPart = (FactualDataPartE4) activePart.getObject();
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ISelection selection = factualDataPart.getViewer().getSelection();
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boolean canExecute = selection instanceof IStructuredSelection && !selection.isEmpty();
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menuItem.setVisible(canExecute);
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return canExecute;
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}
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}
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