| /******************************************************************************* |
| * 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 java.util.Iterator; |
| |
| import org.eclipse.debug.core.DebugEvent; |
| import org.eclipse.debug.core.DebugPlugin; |
| import org.eclipse.debug.core.model.IWatchExpression; |
| 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.IWorkbenchPart; |
| |
| /** |
| * |
| */ |
| public class EnableWatchExpressionAction implements IObjectActionDelegate { |
| |
| private ISelection fSelection; |
| protected boolean fEnable= true; |
| |
| /** |
| * @see org.eclipse.ui.IObjectActionDelegate#setActivePart(org.eclipse.jface.action.IAction, org.eclipse.ui.IWorkbenchPart) |
| */ |
| public void setActivePart(IAction action, IWorkbenchPart targetPart) { |
| } |
| |
| /** |
| * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction) |
| */ |
| public void run(IAction action) { |
| if (fSelection instanceof IStructuredSelection) { |
| Iterator iter= ((IStructuredSelection) fSelection).iterator(); |
| IWatchExpression expression; |
| while (iter.hasNext()) { |
| expression= ((IWatchExpression) iter.next()); |
| expression.setEnabled(fEnable); |
| fireWatchExpressionChanged(expression); |
| } |
| } else if (fSelection instanceof IWatchExpression) { |
| IWatchExpression expression= ((IWatchExpression) fSelection); |
| expression.setEnabled(fEnable); |
| fireWatchExpressionChanged(expression); |
| } |
| } |
| |
| /** |
| * @param expression |
| */ |
| private void fireWatchExpressionChanged(IWatchExpression expression) { |
| DebugPlugin.getDefault().fireDebugEventSet(new DebugEvent[] {new DebugEvent(expression, DebugEvent.CHANGE)}); |
| } |
| |
| /** |
| * @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection) |
| */ |
| public void selectionChanged(IAction action, ISelection selection) { |
| fSelection= selection; |
| if (fSelection instanceof IStructuredSelection) { |
| boolean enabled= false; |
| Iterator iter= ((IStructuredSelection) selection).iterator(); |
| while (iter.hasNext()) { |
| IWatchExpression expression = (IWatchExpression) iter.next(); |
| if (expression.isEnabled() != fEnable) { |
| enabled= true; |
| break; |
| } |
| } |
| action.setEnabled(enabled); |
| } else if (fSelection instanceof IWatchExpression) { |
| action.setEnabled(((IWatchExpression) fSelection).isEnabled() != fEnable); |
| } else { |
| action.setEnabled(false); |
| } |
| } |
| |
| } |