| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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 |
| *******************************************************************************/ |
| package org.eclipse.debug.internal.ui.actions.expressions; |
| |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.debug.core.ILaunch; |
| import org.eclipse.debug.core.model.IDebugElement; |
| import org.eclipse.debug.internal.ui.DebugUIPlugin; |
| import org.eclipse.debug.ui.DebugUITools; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.action.IStatusLineManager; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Event; |
| import org.eclipse.ui.IActionDelegate2; |
| import org.eclipse.ui.IObjectActionDelegate; |
| import org.eclipse.ui.IViewPart; |
| import org.eclipse.ui.IViewSite; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchPart; |
| |
| /** |
| * Generic abstract class for the actions associated to the java watch |
| * expressions. |
| */ |
| public abstract class WatchExpressionAction implements IObjectActionDelegate, IActionDelegate2 { |
| IWorkbenchPart fPart = null; |
| /** |
| * 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; |
| } |
| /** |
| * @see IObjectActionDelegate#setActivePart(IAction, IWorkbenchPart) |
| */ |
| public void setActivePart(IAction action, IWorkbenchPart targetPart) { |
| fPart = targetPart; |
| } |
| |
| /** |
| * @see IActionDelegate#selectionChanged(IAction, ISelection) |
| */ |
| public void selectionChanged(IAction action, ISelection sel) { |
| } |
| |
| protected IStructuredSelection getCurrentSelection() { |
| IWorkbenchPage page = DebugUIPlugin.getActiveWorkbenchWindow().getActivePage(); |
| if (page != null) { |
| ISelection selection = page.getSelection(); |
| if (selection instanceof IStructuredSelection) { |
| return (IStructuredSelection) selection; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Displays the given error message in the status line. |
| * |
| * @param message |
| */ |
| protected void showErrorMessage(String message) { |
| if (fPart instanceof IViewPart) { |
| IViewSite viewSite = ((IViewPart) fPart).getViewSite(); |
| IStatusLineManager manager = viewSite.getActionBars().getStatusLineManager(); |
| manager.setErrorMessage(message); |
| Display.getCurrent().beep(); |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IActionDelegate2#dispose() |
| */ |
| public void dispose() { |
| fPart = null; |
| } |
| |
| /* (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#runWithEvent(org.eclipse.jface.action.IAction, org.eclipse.swt.widgets.Event) |
| */ |
| public void runWithEvent(IAction action, Event event) { |
| run(action); |
| } |
| } |