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/**
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* Copyright (C) 2015 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.navigation.navigator.e4.handler;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Set;
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import javax.inject.Named;
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import org.eclipse.core.commands.operations.AbstractOperation;
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import org.eclipse.core.runtime.IStatus;
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import org.eclipse.core.runtime.Status;
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import org.eclipse.e4.core.di.annotations.CanExecute;
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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.services.IServiceConstants;
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import org.eclipse.jface.dialogs.MessageDialog;
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import org.eclipse.jface.viewers.IStructuredSelection;
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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.NodeDeletionConfigurator.ChildHandling;
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import eu.etaxonomy.cdm.api.service.config.TaxonDeletionConfigurator;
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import eu.etaxonomy.cdm.model.taxon.Classification;
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import eu.etaxonomy.cdm.model.taxon.TaxonNode;
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import eu.etaxonomy.cdm.persistence.dto.TaxonNodeDto;
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import eu.etaxonomy.taxeditor.editor.EditorUtil;
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import eu.etaxonomy.taxeditor.model.MessagingUtils;
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import eu.etaxonomy.taxeditor.navigation.l10n.Messages;
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import eu.etaxonomy.taxeditor.navigation.navigator.TaxonNavigatorLabels;
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import eu.etaxonomy.taxeditor.navigation.navigator.operation.DeleteTaxonNodeOperation;
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import eu.etaxonomy.taxeditor.operation.e4.CdmHandlerE4;
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import eu.etaxonomy.taxeditor.ui.dialog.configurator.deleteConfigurator.DeleteConfiguratorDialog;
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/**
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* @author cmathew
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* @date 22 Jun 2015
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*
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*/
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public class DeleteTaxonNodeHandlerE4 extends CdmHandlerE4 {
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protected static final String SKIP = Messages.DeleteHandler_SKIP;
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protected static final String MOVE_CHILDREN_TO_PARENT_NODE = Messages.DeleteHandler_MOVE_TO_PARENT;
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protected static final String DELETE_ALL_CHILDREN = Messages.DeleteHandler_DELETE_ALL;
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protected static final String THERE_ARE_CHILDNODES_WHICH_WILL_BE_DELETED_TOO = Messages.DeleteHandler_THERE_ARE_CHILDNODES;
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protected static final String THE_TREE_HAS_CHILDREN_THEY_WILL_BE_DELETED_TOO = Messages.DeleteHandler_THERE_ARE_CHILDREN;
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protected static final String DO_YOU_REALLY_WANT_TO_DELETE_THE_SELECTED_NODE_S = Messages.DeleteHandler_DELETE_NODES;
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protected static final String DO_YOU_REALLY_WANT_TO_DELETE_THE_SELECTED_NODE = Messages.DeleteHandler_DELETE_NODE;
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protected static final String DO_YOU_REALLY_WANT_TO_DELETE_THE_CLASSIFICATION = Messages.DeleteHandler_DELETE_CLASSIFICATION;
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protected static final String CONFIRM_DELETION = Messages.DeleteHandler_CONFIRM_DELETE;
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protected static final String DELETE = Messages.DeleteHandler_DELETE;
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private TaxonDeletionConfigurator config;
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private Set<TaxonNodeDto> treeNodes;
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private Set<TaxonNodeDto> classifications;
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private Set<TaxonNode> taxonNodes;
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private Set<Classification> classificationList;
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public DeleteTaxonNodeHandlerE4() {
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super(TaxonNavigatorLabels.DELETE_TAXON_NODE_LABEL);
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}
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@Override
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public IStatus allowOperations(IStructuredSelection selection,
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Shell shell,
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MPart activePart,
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MHandledMenuItem menuItem) {
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Iterator<?> selectionIterator = selection.iterator();
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treeNodes = new HashSet();
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boolean containsNodeWithChildren = false;
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boolean containsClassification = false;
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boolean containsTaxonNodes = false;
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classifications = new HashSet();
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while (selectionIterator.hasNext()){
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Object object = selectionIterator.next();
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if (object instanceof TaxonNodeDto && ((TaxonNodeDto)object).getTaxonUuid() == null){
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TaxonNodeDto dto = (TaxonNodeDto)object;
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classifications.add(dto);
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treeNodes.add(dto);
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containsClassification = true;
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}else if(object instanceof TaxonNodeDto) {
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treeNodes.add((TaxonNodeDto) object);
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}
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}
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for (TaxonNodeDto treeNode : treeNodes) {
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EditorUtil.closeObsoleteEditor(treeNode, partService);
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}
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config = new TaxonDeletionConfigurator();
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Iterator it = treeNodes.iterator();
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treeNodes = new HashSet();
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if (!containsClassification){
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while (it.hasNext()){
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TaxonNodeDto treeNode = (TaxonNodeDto) it.next();
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treeNodes.add(treeNode);
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if (treeNode == null){
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MessagingUtils.informationDialog(Messages.RemotingDeleteTaxonNodeHandler_NODE_DELETED, Messages.RemotingDeleteTaxonNodeHandler_NODE_DELETED_MESSAGE);
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return Status.CANCEL_STATUS;
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}
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if (treeNode instanceof TaxonNodeDto){
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containsTaxonNodes = true;
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if (treeNode.getTaxonomicChildrenCount()>0){
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containsNodeWithChildren = true;
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}
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}
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}
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}
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for (TaxonNodeDto rootNode: classifications){
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if (rootNode.getTaxonomicChildrenCount() > 0) {
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containsNodeWithChildren = true;
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}
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}
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if (containsClassification && !containsTaxonNodes) {
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String message;
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if (containsClassification && containsNodeWithChildren) {
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message = DO_YOU_REALLY_WANT_TO_DELETE_THE_CLASSIFICATION+THE_TREE_HAS_CHILDREN_THEY_WILL_BE_DELETED_TOO;
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} else {
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message = DO_YOU_REALLY_WANT_TO_DELETE_THE_CLASSIFICATION;
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}
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if (!MessageDialog.openConfirm(
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shell, CONFIRM_DELETION,
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message)) {
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return Status.CANCEL_STATUS;
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}
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}
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else {
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String confirmMessage= treeNodes.size() == 1?DO_YOU_REALLY_WANT_TO_DELETE_THE_SELECTED_NODE: DO_YOU_REALLY_WANT_TO_DELETE_THE_SELECTED_NODE_S;
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if (containsNodeWithChildren){
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DeleteConfiguratorDialog dialog = new DeleteConfiguratorDialog(
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config,
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shell,
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CONFIRM_DELETION,
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null,
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DO_YOU_REALLY_WANT_TO_DELETE_THE_SELECTED_NODE+THERE_ARE_CHILDNODES_WHICH_WILL_BE_DELETED_TOO,
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MessageDialog.WARNING, new String[] { DELETE_ALL_CHILDREN,
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MOVE_CHILDREN_TO_PARENT_NODE, SKIP }, 0);
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int result = dialog.open();
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if (result == 0){
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//delete all children
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config.getTaxonNodeConfig().setChildHandling(ChildHandling.DELETE);
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} else if (result == 1){
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//move children
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config.getTaxonNodeConfig().setChildHandling(ChildHandling.MOVE_TO_PARENT);
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} else {
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return Status.CANCEL_STATUS;
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}
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} else{
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DeleteConfiguratorDialog dialog = new DeleteConfiguratorDialog(
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config,
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shell,
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CONFIRM_DELETION,
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null,
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confirmMessage,
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MessageDialog.WARNING, new String[] { DELETE, SKIP }, 0);
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int result = dialog.open();
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if (result == 0){
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//delete all children
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config.getTaxonNodeConfig().setChildHandling(ChildHandling.DELETE);
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} else {
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return Status.CANCEL_STATUS;
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}
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}
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}
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return Status.OK_STATUS;
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}
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@Override
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public AbstractOperation prepareOperation(IStructuredSelection selection,
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Shell shell,
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MPart activePart,
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MHandledMenuItem menuItem) {
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return new DeleteTaxonNodeOperation(getTrigger(),
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false,
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treeNodes,
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classifications,
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config);
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}
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@CanExecute
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private boolean canExecute(@Named(IServiceConstants.ACTIVE_SELECTION)TreeSelection selection, MHandledMenuItem menuItem){
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boolean canExecute = false;
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canExecute = selection.size()==1
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&& (selection.getFirstElement() instanceof TaxonNodeDto)
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||
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(selection.getFirstElement() instanceof TaxonNode
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&& ((TaxonNode)selection.getFirstElement()).getTaxon() == null);
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menuItem.setVisible(canExecute);
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return canExecute;
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}
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@Override
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public void onComplete() {
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// CdmApplicationState.getCurrentDataChangeService()
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// .fireChangeEvent(new CdmChangeEvent(Action.Delete, treeNodes, this), true);
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected Object getTrigger() {
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return this;
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}
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}
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