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/*******************************************************************************
* Copyright (c) 2006, 2010 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.DebugPlugin;
import org.eclipse.debug.core.model.IDebugTarget;
import org.eclipse.debug.core.model.IMemoryBlockRetrieval;
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 DebugTargetContentProvider 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)
*/
@Override
protected int getChildCount(Object element, IPresentationContext context, IViewerUpdate monitor) throws CoreException {
String id = context.getId();
if (id.equals(IDebugUIConstants.ID_DEBUG_VIEW))
{
return ((IDebugTarget)element).getThreads().length;
}
else if (id.equals(IDebugUIConstants.ID_MEMORY_VIEW))
{
return getAllChildren(element, context, monitor).length;
}
return 0;
}
/* (non-Javadoc)
* @see org.eclipse.debug.internal.ui.viewers.model.provisional.elements.ElementContentProvider#supportsContextId(java.lang.String)
*/
@Override
protected boolean supportsContextId(String id) {
return IDebugUIConstants.ID_DEBUG_VIEW.equals(id) || IDebugUIConstants.ID_MEMORY_VIEW.equals(id);
}
/* (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)
*/
@Override
protected Object[] getChildren(Object parent, int index, int length, IPresentationContext context, IViewerUpdate monitor) throws CoreException {
return getElements(getAllChildren(parent, context, monitor), index, length);
}
@Override
protected boolean hasChildren(Object element, IPresentationContext context, IViewerUpdate monitor) throws CoreException {
String id = context.getId();
if (id.equals(IDebugUIConstants.ID_DEBUG_VIEW))
{
return ((IDebugTarget)element).hasThreads();
}
else if (id.equals(IDebugUIConstants.ID_MEMORY_VIEW))
{
return getAllChildren(element, context, monitor).length > 0;
}
return false;
}
/**
* Returns all children of the given parent object.
*
* @param parent
* @param context
* @param monitor
* @return all children
* @throws CoreException
*/
protected Object[] getAllChildren(Object parent, IPresentationContext context, IViewerUpdate monitor) throws CoreException {
String id = context.getId();
if (id.equals(IDebugUIConstants.ID_DEBUG_VIEW))
{
return ((IDebugTarget)parent).getThreads();
}
else if (id.equals(IDebugUIConstants.ID_MEMORY_VIEW))
{
if (parent instanceof IMemoryBlockRetrieval)
{
if (((IMemoryBlockRetrieval)parent).supportsStorageRetrieval())
return DebugPlugin.getDefault().getMemoryBlockManager().getMemoryBlocks((IMemoryBlockRetrieval)parent);
}
}
return EMPTY;
}
}
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