| /******************************************************************************* |
| * Copyright (c) 2000, 2015 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 java.util.LinkedList; |
| import java.util.List; |
| |
| 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.action.IStatusLineManager; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.ui.IViewActionDelegate; |
| 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 IViewActionDelegate { |
| IWorkbenchPart fPart = null; |
| |
| private static IWatchExpression[] EMPTY_EXPRESSION_ARRAY = new IWatchExpression[0]; |
| |
| @Override |
| public void init(IViewPart view) { |
| fPart = view; |
| } |
| |
| /** |
| * Finds the currently selected context in the UI. |
| * @return the current debug context |
| */ |
| 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 IWatchExpression[] getSelectedExpressions() { |
| List<Object> list = new LinkedList<Object>(); |
| IStructuredSelection currentSelection = getCurrentSelection(); |
| if (currentSelection == null) { |
| return EMPTY_EXPRESSION_ARRAY; |
| } |
| |
| for (Iterator<?> iter= currentSelection.iterator(); iter.hasNext();) { |
| Object element = iter.next(); |
| if (element instanceof IWatchExpression) { |
| list.add(element); |
| } else if (element instanceof IAdaptable) { |
| IWatchExpression expr = ((IAdaptable)element).getAdapter(IWatchExpression.class); |
| if (expr != null) { |
| list.add(expr); |
| } else { |
| return EMPTY_EXPRESSION_ARRAY; |
| } |
| } else { |
| return EMPTY_EXPRESSION_ARRAY; |
| } |
| } |
| |
| return list.toArray(new IWatchExpression[list.size()]); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection) |
| */ |
| @Override |
| 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 the message to display |
| */ |
| protected void showErrorMessage(String message) { |
| if (fPart instanceof IViewPart) { |
| IViewSite viewSite = ((IViewPart) fPart).getViewSite(); |
| IStatusLineManager manager = viewSite.getActionBars().getStatusLineManager(); |
| manager.setErrorMessage(message); |
| } |
| } |
| } |