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/**
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* Copyright (C) 2016 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.key.polytomous.e4.handler;
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import javax.inject.Named;
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import org.eclipse.core.commands.ExecutionEvent;
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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.menu.MHandledMenuItem;
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import org.eclipse.e4.ui.services.IServiceConstants;
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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.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.PolytomousKeyEditorLabels;
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import eu.etaxonomy.taxeditor.editor.key.polytomous.PolytomousKeyListEditor;
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import eu.etaxonomy.taxeditor.editor.key.polytomous.handler.AbstractPolytomousKeyNodeHandler;
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import eu.etaxonomy.taxeditor.editor.key.polytomous.operation.InsertPolytomousKeyNodeOperation;
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/**
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* @author k.luther
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* @date 17.11.2016
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*
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*/
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public class InsertNewNodeHandlerE4 extends AbstractPolytomousKeyNodeHandler{
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private PolytomousKeyNode parentNode ;
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public InsertNewNodeHandlerE4() {
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super(PolytomousKeyEditorLabels.INSERT_NODE_POLYTOMOUS_KEY_NODE_LABEL);
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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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public IStatus allowOperations(ExecutionEvent event) {
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IEditorPart editor = HandlerUtil.getActiveEditor(event);
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if (editor instanceof KeyEditor) {
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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 = klEditor.getViewerInputKey();
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parentNode = pk.getRoot();
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} else {
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IStructuredSelection selection = (IStructuredSelection) HandlerUtil.getCurrentSelection(event);
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if (selection.getFirstElement() instanceof PolytomousKeyNode) {
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parentNode = ((PolytomousKeyNode) selection.getFirstElement()).getParent();
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} else {
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return new Status(IStatus.ERROR,
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"unknown", //$NON-NLS-1$
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PolytomousKeyEditorLabels.NO_KEY_NODE_FOR_INSERT_NODE_SELECTED_MESSAGE);
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}
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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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/**
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* {@inheritDoc}
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*/
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@Override
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public AbstractOperation prepareOperation(ExecutionEvent event) {
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return new InsertPolytomousKeyNodeOperation(event.getTrigger(), false, parentNode, editorPage);
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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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public void onComplete() {
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// TODO Auto-generated method stub
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}
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@CanExecute
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public boolean canExecute(@Named(IServiceConstants.ACTIVE_SELECTION)Object selection,
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MHandledMenuItem menuItem){
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boolean canExecute = false;
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canExecute = selection instanceof PolytomousKeyNode;
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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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