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/**
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*
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*/
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package eu.etaxonomy.taxeditor.editor.key.polytomous.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.core.commands.operations.IUndoContext;
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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.ui.IEditorPart;
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import org.eclipse.ui.handlers.HandlerUtil;
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import eu.etaxonomy.cdm.model.description.PolytomousKey;
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import eu.etaxonomy.cdm.model.description.PolytomousKeyNode;
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import eu.etaxonomy.taxeditor.editor.EditorUtil;
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import eu.etaxonomy.taxeditor.editor.key.KeyEditor;
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import eu.etaxonomy.taxeditor.editor.key.polytomous.IPolytomousKeyEditorPage;
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import eu.etaxonomy.taxeditor.editor.key.polytomous.PolytomousKeyListEditor;
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import eu.etaxonomy.taxeditor.editor.key.polytomous.operation.CreateNodeOperation;
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import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
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/**
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* @author n.hoffmann
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*
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*/
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public class CreateChildNodeHandler 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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@Override
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public Object execute(ExecutionEvent event) throws ExecutionException {
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IEditorPart editor = HandlerUtil.getActiveEditor(event);
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if (editor instanceof KeyEditor) {
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IPolytomousKeyEditorPage editorPage = (IPolytomousKeyEditorPage) ((KeyEditor) editor)
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.getActiveEditor();
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if (editorPage instanceof PolytomousKeyListEditor) {
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PolytomousKeyListEditor klEditor = (PolytomousKeyListEditor) editorPage;
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if(klEditor.getTableItemCount() == 0) {
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PolytomousKey pk = (PolytomousKey)klEditor.getViewerInputKey();
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try {
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String label = event.getCommand().getName();
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IUndoContext undoContext = EditorUtil.getUndoContext();
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AbstractPostOperation operation = new CreateNodeOperation(
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label, undoContext, pk.getRoot(), editorPage);
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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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IStructuredSelection selection = (IStructuredSelection) HandlerUtil
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.getCurrentSelection(event);
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if (selection.getFirstElement() instanceof PolytomousKeyNode) {
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try {
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String label = event.getCommand().getName();
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IUndoContext undoContext = EditorUtil.getUndoContext();
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PolytomousKeyNode keyNode = (PolytomousKeyNode) selection
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.getFirstElement();
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AbstractPostOperation operation = new CreateNodeOperation(
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label, undoContext, keyNode, editorPage);
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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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MessageDialog.openInformation(
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EditorUtil.getShell(),
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"No Key Node Selected",
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"Please right-click on a specific key node to create a new child key node.");
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}
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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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