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/*******************************************************************************
* Copyright (c) 2000, 2011 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.launchConfigurations;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.custom.BusyIndicator;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.actions.SelectionListenerAction;
/**
* Common function/behavior for launch configuration view actions
*/
public abstract class AbstractLaunchConfigurationAction extends SelectionListenerAction {
/**
* The mode this action was created in (run, debug, ...)
*/
private String fMode;
/**
* Allows a requestor to abort this action.
*/
public interface IConfirmationRequestor {
/**
* Returns whether this action should proceed. Confirmation is requested
* when an action is run.
*
* @return whether this action should proceed
*/
boolean getConfirmation();
}
/**
* This action's confirmation requestor or <code>null</code> if none
*/
private IConfirmationRequestor fConfirmationRequestor;
/**
* The viewer this action is working on
*/
private Viewer fViewer;
/**
* Constructor for AbstractLaunchConfigurationAction.
* @param text the action label
* @param viewer the viewer the action belongs to
* @param mode the mode the action applies to
*/
public AbstractLaunchConfigurationAction(String text, Viewer viewer, String mode) {
super(text);
fViewer = viewer;
fViewer.addSelectionChangedListener(this);
fMode = mode;
}
/**
* Returns the shell this action is contained in.
*
* @return the shell this action is contained in
*/
protected Shell getShell() {
return getViewer().getControl().getShell();
}
/**
* Returns the viewer this action is working on
*
* @return the viewer this action is working on
*/
protected Viewer getViewer() {
return fViewer;
}
/**
* Performs this action once confirmation has been aquired. Subclasses
* should override this method.
*/
protected abstract void performAction();
/**
* @see org.eclipse.jface.action.IAction#run()
*/
@Override
public final void run() {
if (fConfirmationRequestor != null) {
if (!fConfirmationRequestor.getConfirmation()) {
return;
}
}
Runnable r = new Runnable() {
/**
* @see java.lang.Runnable#run()
*/
@Override
public void run() {
performAction();
}
};
BusyIndicator.showWhile(getShell().getDisplay(), r);
}
/**
* Sets this action's confirmation requestor.
*
* @param confirmationRequestor the new {@link IConfirmationRequestor}
*/
public void setConfirmationRequestor(IConfirmationRequestor confirmationRequestor) {
fConfirmationRequestor = confirmationRequestor;
}
/**
* Disposes this action
*/
public void dispose() {
fViewer.removeSelectionChangedListener(this);
}
/**
* Show an error dialog on the given exception.
*
* @param exception the exception to show in the dialog
*/
protected void errorDialog(CoreException exception) {
ErrorDialog.openError(getShell(), null, null, exception.getStatus());
}
/**
* Return this action's mode.
*
* @return launch mode
*/
protected String getMode() {
return fMode;
}
}
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