| /******************************************************************************* |
| * Copyright (c) 2008, 2009 Wind River Systems and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Wind River Systems - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.debug.examples.ui.pda.views; |
| |
| import org.eclipse.core.commands.AbstractHandler; |
| import org.eclipse.core.commands.ExecutionEvent; |
| import org.eclipse.core.commands.ExecutionException; |
| import org.eclipse.debug.examples.core.pda.model.PDAStackFrame; |
| import org.eclipse.debug.examples.core.pda.model.PDAThread; |
| import org.eclipse.debug.ui.DebugUITools; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.ui.IWorkbenchPart; |
| import org.eclipse.ui.handlers.HandlerUtil; |
| |
| /** |
| * Base class for command handlers for data stack view. |
| */ |
| abstract public class AbstractDataStackViewHandler extends AbstractHandler { |
| |
| public Object execute(ExecutionEvent event) throws ExecutionException { |
| IWorkbenchPart part = HandlerUtil.getActivePartChecked(event); |
| if (part instanceof DataStackView) { |
| DataStackView view = (DataStackView)part; |
| |
| ISelection selection = DebugUITools.getDebugContextForEventChecked(event); |
| if (selection instanceof IStructuredSelection) { |
| Object element = ((IStructuredSelection)selection).getFirstElement(); |
| |
| PDAThread thread = null; |
| if (element instanceof PDAThread) { |
| thread = (PDAThread)element; |
| } else if (element instanceof PDAStackFrame) { |
| thread = (PDAThread)((PDAStackFrame)element).getThread(); |
| } |
| |
| if (element != null) { |
| doExecute( |
| view, |
| thread, |
| HandlerUtil.getCurrentSelectionChecked(event)); |
| } |
| } |
| } else { |
| throw new ExecutionException("Handler must be with DataStackView only"); |
| } |
| return null; |
| } |
| |
| /** |
| * Performs the actual handler operation. |
| * |
| * @param view The view that the handler was invoked in. |
| * @param target The current active debug target. |
| * @param selection The current selection in view. |
| */ |
| abstract protected void doExecute(DataStackView view, PDAThread target, ISelection selection) throws ExecutionException; |
| } |