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/*******************************************************************************
* Copyright (c) 2000, 2006 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.actions;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.debug.core.model.ISuspendResume;
import org.eclipse.debug.ui.DebugUITools;
import org.eclipse.debug.ui.actions.IRunToLineTarget;
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.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchWindow;
/**
* Global retargettable run to line action.
*
* @since 3.0
*/
public class RetargetRunToLineAction extends RetargetAction {
private DebugContextListener fContextListener = new DebugContextListener();
private ISuspendResume fTargetElement = null;
class DebugContextListener implements IDebugContextListener {
protected void contextActivated(ISelection selection) {
fTargetElement = null;
if (selection instanceof IStructuredSelection) {
IStructuredSelection ss = (IStructuredSelection) selection;
if (ss.size() == 1) {
Object object = ss.getFirstElement();
if (object instanceof ISuspendResume) {
fTargetElement = (ISuspendResume) object;
}
}
}
update();
}
public void debugContextChanged(DebugContextEvent event) {
contextActivated(event.getContext());
}
}
/* (non-Javadoc)
* @see org.eclipse.ui.IWorkbenchWindowActionDelegate#dispose()
*/
public void dispose() {
DebugUITools.getDebugContextManager().getContextService(fWindow).removeDebugContextListener(fContextListener);
super.dispose();
}
/* (non-Javadoc)
* @see org.eclipse.ui.IWorkbenchWindowActionDelegate#init(org.eclipse.ui.IWorkbenchWindow)
*/
public void init(IWorkbenchWindow window) {
super.init(window);
IDebugContextService service = DebugUITools.getDebugContextManager().getContextService(window);
service.addDebugContextListener(fContextListener);
ISelection activeContext = service.getActiveContext();
fContextListener.contextActivated(activeContext);
}
/* (non-Javadoc)
* @see org.eclipse.debug.internal.ui.actions.RetargetAction#canPerformAction(java.lang.Object, org.eclipse.jface.viewers.ISelection, org.eclipse.ui.IWorkbenchPart)
*/
protected boolean canPerformAction(Object target, ISelection selection, IWorkbenchPart part) {
return fTargetElement != null &&
((IRunToLineTarget)target).canRunToLine(part, selection, fTargetElement);
}
/* (non-Javadoc)
* @see org.eclipse.debug.internal.ui.actions.RetargetAction#getAdapterClass()
*/
protected Class getAdapterClass() {
return IRunToLineTarget.class;
}
/* (non-Javadoc)
* @see org.eclipse.debug.internal.ui.actions.RetargetAction#performAction(java.lang.Object, org.eclipse.jface.viewers.ISelection, org.eclipse.ui.IWorkbenchPart)
*/
protected void performAction(Object target, ISelection selection, IWorkbenchPart part) throws CoreException {
((IRunToLineTarget)target).runToLine(part, selection, fTargetElement);
}
}
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