| /******************************************************************************* |
| * Copyright (c) 2006, 2007 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.model.elements; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.debug.core.model.IStackFrame; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.IViewerUpdate; |
| import org.eclipse.debug.ui.IDebugUIConstants; |
| |
| /** |
| * @since 3.3 |
| */ |
| public class StackFrameContentProvider extends ElementContentProvider { |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.internal.ui.viewers.model.provisional.elements.ElementContentProvider#getChildCount(java.lang.Object, org.eclipse.debug.internal.ui.viewers.provisional.IPresentationContext) |
| */ |
| protected int getChildCount(Object element, IPresentationContext context, IViewerUpdate monitor) throws CoreException { |
| return getAllChildren(element, context, monitor).length; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.internal.ui.viewers.model.provisional.elements.ElementContentProvider#getChildren(java.lang.Object, int, int, org.eclipse.debug.internal.ui.viewers.provisional.IPresentationContext) |
| */ |
| protected Object[] getChildren(Object parent, int index, int length, IPresentationContext context, IViewerUpdate monitor) throws CoreException { |
| return getElements(getAllChildren(parent, context, monitor), index, length); |
| } |
| |
| /** |
| * This method retrieves all of the children for the specified parent given the current context |
| * @param parent the parent ot get the children for |
| * @param context the context for which to get the children for |
| * @param monitor the monitor for progress |
| * @return the collection of children, or an empty collection, never <code>null</code> |
| * @throws CoreException |
| */ |
| protected Object[] getAllChildren(Object parent, IPresentationContext context, IViewerUpdate monitor) throws CoreException { |
| if (parent instanceof IStackFrame) { |
| String id = context.getId(); |
| IStackFrame frame = (IStackFrame) parent; |
| if (id.equals(IDebugUIConstants.ID_VARIABLE_VIEW)) { |
| return frame.getVariables(); |
| } else if (id.equals(IDebugUIConstants.ID_REGISTER_VIEW)) { |
| return frame.getRegisterGroups(); |
| } |
| } else { |
| monitor.cancel(); |
| } |
| return EMPTY; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.internal.ui.viewers.model.provisional.elements.ElementContentProvider#supportsContextId(java.lang.String) |
| */ |
| protected boolean supportsContextId(String id) { |
| return id.equals(IDebugUIConstants.ID_VARIABLE_VIEW) || id.equals(IDebugUIConstants.ID_REGISTER_VIEW); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.internal.ui.model.elements.ElementContentProvider#hasChildren(java.lang.Object, org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext, org.eclipse.core.runtime.IProgressMonitor) |
| */ |
| protected boolean hasChildren(Object element, IPresentationContext context, IViewerUpdate monitor) throws CoreException { |
| String id = context.getId(); |
| IStackFrame frame = (IStackFrame) element; |
| if (id.equals(IDebugUIConstants.ID_VARIABLE_VIEW)) { |
| return frame.hasVariables(); |
| } else if (id.equals(IDebugUIConstants.ID_REGISTER_VIEW)) { |
| return frame.hasRegisterGroups(); |
| } |
| return false; |
| } |
| |
| } |