/*=============================================================================#
# Copyright (c) 2007-2016 Stephan Wahlbrink (WalWare.de) 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:
# Stephan Wahlbrink - initial API and implementation
#=============================================================================*/
package de.walware.statet.r.internal.ui.rtools;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.common.NotDefinedException;
import de.walware.statet.r.core.RUtil;
import de.walware.statet.r.launching.AbstractRCommandHandler;
/**
* Command handler for help("...")
*/
public class RunHelpInR extends AbstractRCommandHandler {
public static final String COMMAND_ID = "de.walware.statet.r.ui.commands.RunHelpInR"; //$NON-NLS-1$
private static final String PAR_TOPIC = "topic"; //$NON-NLS-1$
public static String createCommandString(final String topic) throws NotDefinedException {
return createCommandString(COMMAND_ID, new String[][] {{ PAR_TOPIC, topic }});
}
public RunHelpInR() {
super(Messages.HelpCommand_name);
}
@Override
public Object execute(final ExecutionEvent arg) throws ExecutionException {
String topic = arg.getParameter(PAR_TOPIC);
if (topic == null) {
topic = getRSelection();
if (topic == null) {
return null;
}
}
runCommand("help(\""+RUtil.escapeForDQuote(topic)+"\")", false); //$NON-NLS-1$ //$NON-NLS-2$
return null;
}
}