| /******************************************************************************* |
| * Copyright (c) 2005, 2009 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| * Bjorn Freeman-Benson - initial API and implementation |
| * Pawel Piech (Wind River) - ported PDA Virtual Machine to Java (Bug 261400) |
| *******************************************************************************/ |
| package org.eclipse.debug.examples.ui.pda.editor; |
| |
| import org.eclipse.debug.core.DebugException; |
| import org.eclipse.debug.examples.core.pda.model.PDAStackFrame; |
| import org.eclipse.debug.examples.core.pda.model.PDAThread; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.swt.widgets.Event; |
| import org.eclipse.ui.IActionDelegate2; |
| import org.eclipse.ui.IObjectActionDelegate; |
| import org.eclipse.ui.IWorkbenchPart; |
| |
| |
| public class PopFrameActionDelegate implements IObjectActionDelegate, IActionDelegate2 { |
| |
| private PDAThread fThread = null; |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IObjectActionDelegate#setActivePart(org.eclipse.jface.action.IAction, org.eclipse.ui.IWorkbenchPart) |
| */ |
| public void setActivePart(IAction action, IWorkbenchPart targetPart) { |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction) |
| */ |
| public void run(IAction action) { |
| //#ifdef ex5 |
| //# // TODO: Exercise 5 - pop the top frame |
| //#else |
| try { |
| fThread.popFrame(); |
| } catch (DebugException e) { |
| } |
| //#endif |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection) |
| */ |
| public void selectionChanged(IAction action, ISelection selection) { |
| if (selection instanceof IStructuredSelection) { |
| IStructuredSelection ss = (IStructuredSelection) selection; |
| Object element = ss.getFirstElement(); |
| if (element instanceof PDAStackFrame) { |
| PDAStackFrame frame = (PDAStackFrame) element; |
| //#ifdef ex5 |
| //# // TODO: Exercise 5 - enable the action if the frame's thread supports it |
| //#else |
| fThread = (PDAThread) frame.getThread(); |
| try { |
| action.setEnabled(fThread.canPopFrame() && fThread.getTopStackFrame().equals(frame)); |
| } catch (DebugException e) { |
| } |
| return; |
| //#endif |
| } |
| |
| } |
| action.setEnabled(false); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IActionDelegate2#init(org.eclipse.jface.action.IAction) |
| */ |
| public void init(IAction action) { |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IActionDelegate2#dispose() |
| */ |
| public void dispose() { |
| fThread = null; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IActionDelegate2#runWithEvent(org.eclipse.jface.action.IAction, org.eclipse.swt.widgets.Event) |
| */ |
| public void runWithEvent(IAction action, Event event) { |
| run(action); |
| } |
| |
| } |