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/*******************************************************************************
* Copyright (c) 2005 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.ILaunch;
import org.eclipse.debug.core.model.IDebugElement;
import org.eclipse.debug.core.model.IWatchExpression;
import org.eclipse.debug.internal.ui.contexts.DebugContextManager;
import org.eclipse.debug.internal.ui.contexts.IDebugContextListener;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchWindow;
/**
* @since 3.2
*
*/
public class DefaultWatchExpressionModelProxy extends DefaultExpressionModelProxy implements IDebugContextListener {
private IWorkbenchWindow fWindow;
public DefaultWatchExpressionModelProxy(IWatchExpression expression, IWorkbenchWindow window) {
super(expression);
fWindow = window;
DebugContextManager.getDefault().addDebugContextListener(this, window);
}
/* (non-Javadoc)
* @see org.eclipse.debug.internal.ui.viewers.update.DefaultExpressionModelProxy#dispose()
*/
public synchronized void dispose() {
super.dispose();
DebugContextManager.getDefault().removeDebugContextListener(this, fWindow);
fWindow = null;
}
/* (non-Javadoc)
* @see org.eclipse.debug.internal.ui.viewers.update.EventHandlerModelProxy#createEventHandlers()
*/
protected DebugEventHandler[] createEventHandlers() {
return new DebugEventHandler[]{new ExpressionEventHandler(this)};
}
/* (non-Javadoc)
* @see org.eclipse.debug.ui.contexts.IDebugContextListener#contextActivated(org.eclipse.jface.viewers.ISelection, org.eclipse.ui.IWorkbenchPart)
*/
public void contextActivated(ISelection selection, IWorkbenchPart part) {
if (fWindow != null) {
if (selection instanceof IStructuredSelection) {
IDebugElement context = null;
IStructuredSelection ss = (IStructuredSelection)selection;
if (ss.size() < 2) {
Object object = ss.getFirstElement();
if (object instanceof IDebugElement) {
context= (IDebugElement) object;
} else if (object instanceof ILaunch) {
context= ((ILaunch) object).getDebugTarget();
}
}
((IWatchExpression)getExpression()).setExpressionContext(context);
}
}
}
/* (non-Javadoc)
* @see org.eclipse.debug.ui.contexts.IDebugContextListener#contextChanged(org.eclipse.jface.viewers.ISelection, org.eclipse.ui.IWorkbenchPart)
*/
public void contextChanged(ISelection selection, IWorkbenchPart part) {
}
}
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