| /******************************************************************************* |
| * Copyright (c) 2005, 2006 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.viewers.update; |
| |
| import org.eclipse.debug.core.DebugEvent; |
| import org.eclipse.debug.core.DebugPlugin; |
| import org.eclipse.debug.core.model.IExpression; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.IModelDelta; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.IModelProxy; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.ModelDelta; |
| import org.eclipse.debug.internal.ui.viewers.provisional.AbstractModelProxy; |
| |
| /** |
| * Event handler for an expression. |
| * |
| * @since 3.2 |
| * |
| */ |
| public class ExpressionEventHandler extends DebugEventHandler { |
| |
| public ExpressionEventHandler(AbstractModelProxy proxy) { |
| super(proxy); |
| } |
| |
| protected boolean handlesEvent(DebugEvent event) { |
| return event.getKind() == DebugEvent.CHANGE; |
| } |
| |
| protected void handleChange(DebugEvent event) { |
| ModelDelta delta = new ModelDelta(DebugPlugin.getDefault().getExpressionManager(), IModelDelta.NO_CHANGE); |
| IExpression expression = null; |
| if (event.getSource() instanceof IExpression) { |
| expression = (IExpression) event.getSource(); |
| } else { |
| IModelProxy modelProxy = getModelProxy(); |
| if (modelProxy instanceof DefaultExpressionModelProxy) { |
| DefaultExpressionModelProxy proxy = (DefaultExpressionModelProxy) modelProxy; |
| expression = proxy.getExpression(); |
| } |
| } |
| if (expression != null) { |
| int flags = IModelDelta.NO_CHANGE; |
| if ((event.getDetail() & DebugEvent.STATE) != 0) { |
| flags = flags | IModelDelta.STATE; |
| } |
| if ((event.getDetail() & DebugEvent.CONTENT) != 0) { |
| flags = flags | IModelDelta.CONTENT; |
| } |
| delta.addNode(expression, flags); |
| fireDelta(delta); |
| } |
| } |
| |
| protected void refreshRoot(DebugEvent event) { |
| ModelDelta delta = new ModelDelta(DebugPlugin.getDefault().getExpressionManager(), IModelDelta.CONTENT); |
| fireDelta(delta); |
| } |
| |
| } |