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/***************************************************************************************************
* Copyright (c) 2003, 2004 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.jst.j2ee.internal.actions;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IActionDelegate;
public abstract class AbstractActionWithDelegate extends org.eclipse.ui.actions.SelectionListenerAction {
protected IActionDelegate delegate;
/**
* EditModuleDependencyAction constructor comment.
*
* @param text
* java.lang.String
*/
public AbstractActionWithDelegate() {
super("");//$NON-NLS-1$
initLabel();
initDelegate();
}
protected abstract IActionDelegate createDelegate();
protected abstract String getLabel();
protected void initDelegate() {
delegate = createDelegate();
}
protected void initLabel() {
setText(getLabel());
}
/**
* Implementation of method defined on <code>IAction</code>.
*/
public void run() {
delegate.run(this);
}
/**
* Updates this action in response to the given selection.
* <p>
* The <code>SelectionListenerAction</code> implementation of this method returns
* <code>true</code>. Subclasses may extend to react to selection changes; however, if the
* super method returns <code>false</code>, the overriding method must also return
* <code>false</code>.
* </p>
*
* @param selection
* the new selection
* @return <code>true</code> if the action should be enabled for this selection, and
* <code>false</code> otherwise
*/
protected boolean updateSelection(IStructuredSelection selection) {
delegate.selectionChanged(this, selection);
return this.isEnabled();
}
}
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