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/*******************************************************************************
* Copyright (c) 2012 Wind River Systems, Inc. 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tcf.te.tcf.processes.ui.internal.handler;
import java.util.Iterator;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.tcf.protocol.Protocol;
import org.eclipse.tcf.te.runtime.callback.Callback;
import org.eclipse.tcf.te.tcf.processes.ui.model.ProcessTreeNode;
import org.eclipse.tcf.te.tcf.processes.ui.model.steps.TerminateStep;
import org.eclipse.tcf.te.tcf.processes.ui.nls.Messages;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.handlers.HandlerUtil;
/**
* The handler to terminate the selected process.
*/
public class TerminateHandler extends AbstractHandler {
/* (non-Javadoc)
* @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
*/
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
ISelection selection = HandlerUtil.getCurrentSelection(event);
if (selection instanceof IStructuredSelection && !selection.isEmpty()) {
Iterator<?> iterator = ((IStructuredSelection)selection).iterator();
while (iterator.hasNext()) {
Object candidate = iterator.next();
if (candidate instanceof ProcessTreeNode) {
final ProcessTreeNode process = (ProcessTreeNode)candidate;
Runnable runnable = new Runnable() {
@Override
public void run() {
TerminateStep step = new TerminateStep();
step.executeTerminate(process, new TerminateCallback(process));
}
};
Protocol.invokeLater(runnable);
}
}
}
return null;
}
/**
* The callback to be invoked after the selected processes are successfully terminated
* to update the tree viewer or display errors.
*/
static class TerminateCallback extends Callback {
private ProcessTreeNode node;
public TerminateCallback(ProcessTreeNode node) {
this.node = node;
}
@Override
protected void internalDone(Object caller, final IStatus status) {
if (status.isOK()) {
node.parent.removeChild(node);
}
else {
PlatformUI.getWorkbench().getDisplay().asyncExec(new Runnable(){
@Override
public void run() {
String message = status.getMessage();
Shell parent = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
MessageDialog.openError(parent, Messages.TerminateHandler_TerminationError, message);
}});
}
}
}
}
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