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/*******************************************************************************
* Copyright (c) 2005, 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
* Bjorn Freeman-Benson - initial API and implementation
*******************************************************************************/
package org.eclipse.debug.examples.ui.pda.views;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.model.IDebugElement;
import org.eclipse.debug.core.model.IDebugTarget;
import org.eclipse.debug.examples.core.pda.DebugCorePlugin;
import org.eclipse.debug.examples.core.pda.model.PDADebugTarget;
import org.eclipse.debug.ui.AbstractDebugView;
import org.eclipse.debug.ui.DebugUITools;
import org.eclipse.debug.ui.IDebugUIConstants;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.ISelectionListener;
import org.eclipse.ui.IWorkbenchActionConstants;
import org.eclipse.ui.IWorkbenchPart;
/**
* View of the PDA VM data stack
*/
public class DataStackView extends AbstractDebugView implements ISelectionListener {
private PDADebugTarget fTarget;
private PopAction fPopAction;
private PushAction fPushAction;
class StackViewContentProvider implements ITreeContentProvider {
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object)
*/
public Object[] getChildren(Object parentElement) {
if (parentElement instanceof PDADebugTarget) {
try {
return ((PDADebugTarget)parentElement).getDataStack();
} catch (DebugException e) {
}
}
return new Object[0];
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object)
*/
public Object getParent(Object element) {
if (element instanceof IDebugTarget) {
return null;
} else {
return ((IDebugElement)element).getDebugTarget();
}
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object)
*/
public boolean hasChildren(Object element) {
if (element instanceof IDebugElement) {
return getChildren(element).length > 0;
}
return false;
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
*/
public Object[] getElements(Object inputElement) {
return getChildren(inputElement);
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.IContentProvider#dispose()
*/
public void dispose() {
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
*/
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
}
}
/* (non-Javadoc)
* @see org.eclipse.debug.ui.AbstractDebugView#createViewer(org.eclipse.swt.widgets.Composite)
*/
protected Viewer createViewer(Composite parent) {
TreeViewer viewer = new TreeViewer(parent);
viewer.setLabelProvider(DebugUITools.newDebugModelPresentation());
viewer.setContentProvider(new StackViewContentProvider());
getSite().getWorkbenchWindow().getSelectionService().addSelectionListener(IDebugUIConstants.ID_DEBUG_VIEW, this);
getSite().setSelectionProvider(viewer);
return viewer;
}
/* (non-Javadoc)
* @see org.eclipse.debug.ui.AbstractDebugView#createActions()
*/
protected void createActions() {
fPopAction = new PopAction(this);
fPushAction = new PushAction(this);
}
/* (non-Javadoc)
* @see org.eclipse.debug.ui.AbstractDebugView#getHelpContextId()
*/
protected String getHelpContextId() {
return null;
}
/* (non-Javadoc)
* @see org.eclipse.debug.ui.AbstractDebugView#fillContextMenu(org.eclipse.jface.action.IMenuManager)
*/
protected void fillContextMenu(IMenuManager menu) {
menu.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS));
menu.add(fPopAction);
menu.add(fPushAction);
}
/* (non-Javadoc)
* @see org.eclipse.debug.ui.AbstractDebugView#configureToolBar(org.eclipse.jface.action.IToolBarManager)
*/
protected void configureToolBar(IToolBarManager tbm) {
tbm.add(fPopAction);
tbm.add(fPushAction);
}
/* (non-Javadoc)
* @see org.eclipse.ui.IWorkbenchPart#dispose()
*/
public void dispose() {
getSite().getWorkbenchWindow().getSelectionService().removeSelectionListener(IDebugUIConstants.ID_DEBUG_VIEW, this);
super.dispose();
}
/* (non-Javadoc)
* @see org.eclipse.ui.ISelectionListener#selectionChanged(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection)
*/
public void selectionChanged(IWorkbenchPart part, ISelection selection) {
update();
}
/**
* Updates the view for the selected target (if suspended)
*/
private synchronized void update() {
IAdaptable adaptable = DebugUITools.getDebugContext();
fTarget = null;
if (adaptable != null) {
IDebugElement element = (IDebugElement) adaptable.getAdapter(IDebugElement.class);
if (element != null) {
if (element.getModelIdentifier().equals(DebugCorePlugin.ID_PDA_DEBUG_MODEL)) {
fTarget = (PDADebugTarget) element.getDebugTarget();
}
}
}
Object input = null;
if (fTarget != null && fTarget.isSuspended()) {
input = fTarget;
}
getViewer().setInput(input);
fPushAction.setDebugTarget(fTarget);
getViewer().refresh();
}
}