| /******************************************************************************* |
| * Copyright (c) 2000, 2008 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 |
| * Wind River Systems - integration with non-standard debug models (Bug 209883) |
| *******************************************************************************/ |
| package org.eclipse.debug.internal.ui.actions.expressions; |
| |
| |
| import java.util.Iterator; |
| |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.debug.core.ILaunch; |
| import org.eclipse.debug.core.model.IDebugElement; |
| import org.eclipse.debug.core.model.IWatchExpression; |
| import org.eclipse.debug.internal.ui.DebugUIPlugin; |
| import org.eclipse.debug.ui.DebugUITools; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.ui.IObjectActionDelegate; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchPart; |
| |
| /** |
| * Ask to re-evaluate one or more watch expressions in the context of the |
| * currently selected thread. |
| */ |
| public class ReevaluateWatchExpressionAction implements IObjectActionDelegate { |
| |
| public void setActivePart(IAction action, IWorkbenchPart targetPart) { |
| // TODO Auto-generated method stub |
| |
| } |
| |
| /** |
| * Finds the currently selected context in the UI. |
| */ |
| protected IDebugElement getContext() { |
| IAdaptable object = DebugUITools.getDebugContext(); |
| IDebugElement context = null; |
| if (object instanceof IDebugElement) { |
| context = (IDebugElement) object; |
| } else if (object instanceof ILaunch) { |
| context = ((ILaunch) object).getDebugTarget(); |
| } |
| return context; |
| } |
| |
| protected IStructuredSelection getCurrentSelection() { |
| IWorkbenchPage page = DebugUIPlugin.getActiveWorkbenchWindow().getActivePage(); |
| if (page != null) { |
| ISelection selection = page.getSelection(); |
| if (selection instanceof IStructuredSelection) { |
| return (IStructuredSelection) selection; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction) |
| */ |
| public void run(IAction action) { |
| IDebugElement context = getContext(); |
| for (Iterator iter= getCurrentSelection().iterator(); iter.hasNext();) { |
| IWatchExpression expression= (IWatchExpression) iter.next(); |
| expression.setExpressionContext(context); |
| if (!expression.isEnabled()) { |
| // Force a reevaluation |
| expression.evaluate(); |
| } |
| } |
| } |
| |
| /** |
| * @see IActionDelegate#selectionChanged(IAction, ISelection) |
| */ |
| public void selectionChanged(IAction action, ISelection selection) { |
| IDebugElement debugElement = getContext(); |
| if (debugElement == null) { |
| action.setEnabled(false); |
| } else { |
| action.setEnabled(true); |
| } |
| } |
| |
| } |