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/*******************************************************************************
* Copyright (c) 2000, 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
*******************************************************************************/
package org.eclipse.debug.internal.ui.actions;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.swt.widgets.Event;
import org.eclipse.ui.IActionDelegate2;
import org.eclipse.ui.IViewActionDelegate;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;
/**
* This class is a base implementation of a 'remove all' debug action
*
* This class is intended to be extended by clients
* @see {@link IViewActionDelegate}
* @see {@link IActionDelegate2}}
* @see {@link IWorkbenchWindowActionDelegate}
*/
public abstract class AbstractRemoveAllActionDelegate implements IViewActionDelegate, IActionDelegate2, IWorkbenchWindowActionDelegate {
/**
* The underlying <code>IAction</code>
*/
private IAction fAction;
/**
* Needed for reflective creation
*/
public AbstractRemoveAllActionDelegate() {}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate2#dispose()
*/
public void dispose() {
fAction = null;
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate2#init(org.eclipse.jface.action.IAction)
*/
public void init(IAction action) {
fAction = action;
}
/**
* Returns this delegate's action.
*
* @return the underlying <code>IAction</code>
*/
protected IAction getAction() {
return fAction;
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate2#runWithEvent(org.eclipse.jface.action.IAction, org.eclipse.swt.widgets.Event)
*/
public void runWithEvent(IAction action, Event event) {
run(action);
}
/* (non-Javadoc)
* @see org.eclipse.ui.IViewActionDelegate#init(org.eclipse.ui.IViewPart)
*/
public void init(IViewPart view) {
initialize();
update();
}
/* (non-Javadoc)
* @see org.eclipse.ui.IWorkbenchWindowActionDelegate#init(org.eclipse.ui.IWorkbenchWindow)
*/
public void init(IWorkbenchWindow window) {
initialize();
update();
}
/**
* Initializes any listeners, etc.
*/
protected abstract void initialize();
/**
* Update enablement.
*/
protected void update() {
IAction action = getAction();
if (action != null) {
action.setEnabled(isEnabled());
}
}
/**
* Returns whether this action is enabled
*
* @return true if this action is enabled, false otherwise
*/
protected abstract boolean isEnabled();
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection)
*/
public void selectionChanged(IAction action, ISelection s) {
// do nothing
}
}
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