/*******************************************************************************
* Copyright (c) 2007, 2009 Wind River Systems 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:
* Ted R Williams (Wind River Systems, Inc.) - initial implementation
*******************************************************************************/
package org.eclipse.cdt.dsf.debug.ui.viewmodel.actions;
import org.eclipse.cdt.dsf.ui.viewmodel.IVMAdapter;
import org.eclipse.cdt.dsf.ui.viewmodel.IVMProvider;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext;
import org.eclipse.debug.internal.ui.viewers.model.provisional.TreeModelViewer;
import org.eclipse.debug.ui.AbstractDebugView;
import org.eclipse.debug.ui.DebugUITools;
import org.eclipse.debug.ui.contexts.DebugContextEvent;
import org.eclipse.debug.ui.contexts.IDebugContextListener;
import org.eclipse.debug.ui.contexts.IDebugContextService;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.widgets.Event;
import org.eclipse.ui.IActionDelegate2;
import org.eclipse.ui.IViewActionDelegate;
import org.eclipse.ui.IViewPart;
/**
* @since 1.1
*/
abstract public class AbstractVMProviderActionDelegate implements IViewActionDelegate, IDebugContextListener, IActionDelegate2 {
private IViewPart fView = null;
private IAction fAction = null;
private ISelection fDebugContext;
public void init(IViewPart view) {
fView = view;
// Get the current selection from the DebugView so we can determine if we want this menu action to be live or not.
IDebugContextService debugContextService = DebugUITools.getDebugContextManager().getContextService(view.getSite().getWorkbenchWindow());
debugContextService.addPostDebugContextListener(this);
fDebugContext = debugContextService.getActiveContext();
}
public void selectionChanged(IAction action, ISelection selection) {
if (fAction != action) {
fAction = action;
}
}
public void runWithEvent(IAction action, Event event) {
run(action);
}
public void init(IAction action) {
fAction = action;
}
public void dispose() {
DebugUITools.getDebugContextManager().getContextService(getView().getSite().getWorkbenchWindow()).removePostDebugContextListener(this);
}
public void debugContextChanged(DebugContextEvent event) {
fDebugContext = event.getContext();
}
protected IViewPart getView() { return fView; }
protected IAction getAction() { return fAction; }
protected Object getViewerInput() {
if (fDebugContext instanceof IStructuredSelection) {
return ((IStructuredSelection)fDebugContext).getFirstElement();
}
return null;
}
protected IVMProvider getVMProvider() {
Object viewerInput = getViewerInput();
IPresentationContext presentationContext = getPresentationContext();
if (viewerInput instanceof IAdaptable && presentationContext != null) {
IVMAdapter adapter = (IVMAdapter) ((IAdaptable)viewerInput).getAdapter(IVMAdapter.class);
if ( adapter != null ) {
return adapter.getVMProvider(presentationContext);
}
}
return null;
}
protected IPresentationContext getPresentationContext() {
if (fView instanceof AbstractDebugView &&
((AbstractDebugView) fView).getViewer() instanceof TreeModelViewer)
{
return ((TreeModelViewer) ((AbstractDebugView) fView).getViewer()).getPresentationContext();
}
return null;
}
}