| /********************************************************************* |
| * Copyright (c) 2005, 2019 SAP SE |
| * |
| * This program and the accompanying materials are made |
| * available under the terms of the Eclipse Public License 2.0 |
| * which is available at https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * Contributors: |
| * SAP SE - initial API, implementation and documentation |
| * cbrand - Bug 385586 - Remove,Delete, Update Action (ContextMenu, ButtonPad etc.) |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| **********************************************************************/ |
| package org.eclipse.graphiti.ui.internal.action; |
| |
| import org.eclipse.graphiti.features.IDeleteFeature; |
| import org.eclipse.graphiti.features.IFeature; |
| import org.eclipse.graphiti.features.IFeatureProvider; |
| import org.eclipse.graphiti.features.context.IContext; |
| import org.eclipse.graphiti.features.context.IDeleteContext; |
| import org.eclipse.graphiti.features.context.IMultiDeleteInfo; |
| import org.eclipse.graphiti.features.context.impl.DeleteContext; |
| import org.eclipse.graphiti.features.context.impl.MultiDeleteInfo; |
| import org.eclipse.graphiti.mm.pictograms.PictogramElement; |
| import org.eclipse.graphiti.ui.internal.Messages; |
| import org.eclipse.graphiti.ui.platform.IConfigurationProvider; |
| import org.eclipse.ui.IWorkbenchPart; |
| import org.eclipse.ui.actions.ActionFactory; |
| |
| /** |
| * @noinstantiate This class is not intended to be instantiated by clients. |
| * @noextend This class is not intended to be subclassed by clients. |
| */ |
| public class DeleteAction extends AbstractPreDefinedAction implements IContextAndFeatureProvider { |
| |
| private static final String TOOL_TIP = Messages.DeleteAction_0_xmsg; |
| |
| private static final String TEXT = Messages.DeleteAction_1_xfld; |
| |
| public static final String ACTION_ID = ActionFactory.DELETE.getId(); |
| |
| private IMultiDeleteInfo multiDeleteInfo = null; |
| |
| public DeleteAction(IWorkbenchPart part, IConfigurationProvider configurationProvider) { |
| super(part, configurationProvider); |
| setId(ACTION_ID); |
| setText(TEXT); |
| setToolTipText(TOOL_TIP); |
| } |
| |
| public boolean isAvailable() { |
| PictogramElement pe[] = getSelectedPictogramElements(); |
| for (int i = 0; i < pe.length; i++) { |
| IDeleteContext context = new DeleteContext(pe[i]); |
| IDeleteFeature deleteFeature = getFeatureProvider().getDeleteFeature(context); |
| if (deleteFeature == null || !deleteFeature.isAvailable(context)) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| @Override |
| protected boolean calculateEnabled() { |
| PictogramElement pe[] = getSelectedPictogramElements(); |
| if (pe.length == 0) { |
| return false; |
| } |
| for (int i = 0; i < pe.length; i++) { |
| IDeleteContext context = new DeleteContext(pe[i]); |
| IFeatureProvider featureProvider = getFeatureProvider(); |
| if (featureProvider == null) { |
| return false; |
| } |
| IDeleteFeature deleteFeature = featureProvider.getDeleteFeature(context); |
| if (deleteFeature != null && (!deleteFeature.isAvailable(context) || !deleteFeature.canDelete(context))) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| @Override |
| public void run() { |
| int number = getSelectedPictogramElements().length; |
| if (number > 1) { |
| setMultiDeleteInfo(new MultiDeleteInfo(true, false, number)); |
| } else { |
| setMultiDeleteInfo(null); |
| } |
| genericRun(this); |
| } |
| |
| public IContext createContext(PictogramElement pe) { |
| DeleteContext deleteContext = new DeleteContext(pe); |
| if (getMultiDeleteInfo() != null) { |
| deleteContext.setMultiDeleteInfo(getMultiDeleteInfo()); |
| } |
| return deleteContext; |
| } |
| |
| public IFeature provideFeatureForContext(IContext context) { |
| return getFeatureProvider().getDeleteFeature((IDeleteContext) context); |
| } |
| |
| /** |
| * @return the multiDeleteInfo |
| */ |
| private IMultiDeleteInfo getMultiDeleteInfo() { |
| return multiDeleteInfo; |
| } |
| |
| /** |
| * @param multiDeleteInfo |
| * the multiDeleteInfo to set |
| */ |
| private void setMultiDeleteInfo(IMultiDeleteInfo multiDeleteInfo) { |
| this.multiDeleteInfo = multiDeleteInfo; |
| } |
| } |