-// $Id$
/**
* Copyright (C) 2007 EDIT
- * European Distributed Institute of Taxonomy
+ * European Distributed Institute of Taxonomy
* http://www.e-taxonomy.eu
- *
+ *
* The contents of this file are subject to the Mozilla Public License Version 1.1
* See LICENSE.TXT at the top of this package for the full license terms.
*/
package eu.etaxonomy.taxeditor.editor.key.polytomous.handler;
-import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
-import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.common.NotDefinedException;
+import org.eclipse.core.commands.operations.AbstractOperation;
import org.eclipse.core.commands.operations.IUndoContext;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.handlers.HandlerUtil;
import eu.etaxonomy.taxeditor.editor.EditorUtil;
import eu.etaxonomy.taxeditor.editor.key.KeyEditor;
import eu.etaxonomy.taxeditor.editor.key.polytomous.IPolytomousKeyEditorPage;
+import eu.etaxonomy.taxeditor.editor.key.polytomous.PolytomousKeyEditorLabels;
import eu.etaxonomy.taxeditor.editor.key.polytomous.operation.DeleteNodeOperation;
+import eu.etaxonomy.taxeditor.editor.l10n.Messages;
+import eu.etaxonomy.taxeditor.model.AbstractUtility;
+import eu.etaxonomy.taxeditor.model.MessagingUtils;
import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
/**
* @created Dec 6, 2010
* @version 1.0
*/
-public class DeleteNodeHandler extends AbstractHandler {
-
- /*
- * (non-Javadoc)
- *
- * @see
- * org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.
- * ExecutionEvent)
- */
- @Override
- public Object execute(ExecutionEvent event) throws ExecutionException {
- IEditorPart editor = HandlerUtil.getActiveEditor(event);
-
- if (editor instanceof KeyEditor) {
- IPolytomousKeyEditorPage editorPage = (IPolytomousKeyEditorPage) ((KeyEditor) editor)
- .getActiveEditor();
-
- IStructuredSelection selection = (IStructuredSelection) HandlerUtil
- .getCurrentSelection(event);
-
- if (selection.getFirstElement() instanceof PolytomousKeyNode) {
- try {
- String label = event.getCommand().getName();
- IUndoContext undoContext = EditorUtil.getUndoContext();
-
- for (Object element : selection.toArray()) {
- PolytomousKeyNode keyNode = (PolytomousKeyNode) element;
-
- AbstractPostOperation operation = new DeleteNodeOperation(
- label, undoContext, keyNode, editorPage);
- EditorUtil.executeOperation(operation);
- }
-
- } catch (NotDefinedException e) {
- EditorUtil.warn(getClass(), "Command name not set.");
- }
-
- }
- }
-
- return null;
- }
+public class DeleteNodeHandler extends AbstractPolytomousKeyNodeHandler {
+
+
+ private static final String DO_YOU_REALLY_WANT_TO_DELETE_THE_NODE_THIS_OPERATION_IS_NOT_REVERSABLE = Messages.DeleteNodeHandler_REALLY_DELETE;
+ private static final String CONFIRM_DELETION_OF_CHILDREN = Messages.DeleteNodeHandler_CONFIRM_DELETE;
+ private static final String NO = Messages.DeleteNodeHandler_NO;
+ private static final String CANCEL = Messages.DeleteNodeHandler_CANCEL;
+ private static final String YES = Messages.DeleteNodeHandler_YES;
+ PolytomousKeyNode nodeToBeDeleted;
+ boolean deleteChildren;
+ /**
+ * @param label
+ */
+ public DeleteNodeHandler(String label) {
+ super(label);
+
+ }
+
+
+
+ public DeleteNodeHandler() {
+ super(PolytomousKeyEditorLabels.DELETE_NODE_POLYTOMOUS_KEY_NODE_LABEL);
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public IStatus allowOperations(ExecutionEvent event) {
+ IEditorPart editor = HandlerUtil.getActiveEditor(event);
+ IStructuredSelection selection = (IStructuredSelection) HandlerUtil
+ .getCurrentSelection(event);
+ AbstractPostOperation operation;
+ if (editor instanceof KeyEditor) {
+ editorPage = (IPolytomousKeyEditorPage) ((KeyEditor) editor)
+ .getActiveEditor();
+ }
+
+
+ if (selection.getFirstElement() instanceof PolytomousKeyNode) {
+ try {
+ String label = event.getCommand().getName();
+ IUndoContext undoContext = EditorUtil.getUndoContext();
+ PolytomousKeyNode node = (PolytomousKeyNode)selection.getFirstElement();
+ nodeToBeDeleted = node;
+ MessageDialog dialog;
+ if (node.getChildren().size()>0){
+ String[] buttonLables = {YES, NO,CANCEL};
+ dialog = new MessageDialog(null, CONFIRM_DELETION_OF_CHILDREN, null, DO_YOU_REALLY_WANT_TO_DELETE_THE_NODE_THIS_OPERATION_IS_NOT_REVERSABLE+Messages.DeleteNodeHandler_NODE_HAS_CHILDREN, MessageDialog.QUESTION_WITH_CANCEL, buttonLables, 0);
+ int returnCode = dialog.open();
+
+ if (returnCode == 0){
+ deleteChildren = false;
+ } else if (returnCode == 1){
+ deleteChildren = true;
+ } else{
+ return new Status(IStatus.CANCEL, "unknown", //$NON-NLS-1$
+ null);
+ }
+
+
+ }else{
+ String[] buttonLables = {YES, CANCEL};
+ dialog = new MessageDialog(null, CONFIRM_DELETION_OF_CHILDREN, null, DO_YOU_REALLY_WANT_TO_DELETE_THE_NODE_THIS_OPERATION_IS_NOT_REVERSABLE, MessageDialog.QUESTION_WITH_CANCEL, buttonLables, 1);
+ int returnCode = dialog.open();
+
+ if (returnCode == 0){
+ deleteChildren = false;
+ } else if (returnCode == 1){
+ return new Status(IStatus.CANCEL, "unknown", //$NON-NLS-1$
+ null);
+ }
+ }
+
+
+
+
+ } catch (NotDefinedException e) {
+ MessagingUtils.warn(getClass(), "Command name not set."); //$NON-NLS-1$
+ }
+ } else {
+ MessageDialog.openInformation(
+ AbstractUtility.getShell(),
+ PolytomousKeyEditorLabels.NO_KEY_NODE_SELECTED,
+ PolytomousKeyEditorLabels.NO_KEY_NODE_FOR_INSERT_NODE_SELECTED_MESSAGE
+ );
+ }
+
+ return Status.OK_STATUS;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public AbstractOperation prepareOperation(ExecutionEvent event) {
+ IUndoContext undoContext = EditorUtil.getUndoContext();
+ String label = ""; //$NON-NLS-1$
+ IEditorPart editor = HandlerUtil.getActiveEditor(event);
+ if (editor.isDirty()){
+ boolean proceed = MessageDialog.openQuestion(null,
+ Messages.DeleteNodeHandler_SAVE_CHANGES_TITLE, Messages.DeleteNodeHandler_SAVE_CHANGES_MESSAGE);
+ if (!proceed) {
+ return null;
+ }else{
+ editor.doSave(EditorUtil.getMonitor());
+ }
+ }
+
+ try {
+ label = event.getCommand().getName();
+ } catch (NotDefinedException e) {
+ MessagingUtils.warn(getClass(), "Command name not set."); //$NON-NLS-1$
+ }
+ DeleteNodeOperation operation ;
+ if (deleteChildren){
+ operation = new DeleteNodeOperation(label, undoContext, nodeToBeDeleted, editorPage, true);
+ }else{
+ operation = new DeleteNodeOperation(label, undoContext, nodeToBeDeleted, editorPage, false);
+ }
+
+ return operation;
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public void onComplete() {
+ // TODO Auto-generated method stub
+
+ }
}
BGBM BDI Projects / taxeditor.git / blobdiff