LookupJavadocAndSourcesActionDelegate.java

/*******************************************************************************
 * Copyright (c) 2008 Pierre-Antoine Grégoire.
 * 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:
 *    Pierre-Antoine Grégoire - initial API and implementation
 *******************************************************************************/
package org.org.eclipse.dws.ui.internal.actions;

import java.util.Collections;

import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.jface.action.IAction;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IWorkbenchSite;
import org.eclipse.ui.handlers.IHandlerService;
import org.org.eclipse.core.ui.dialogs.ErrorDialog;
import org.org.eclipse.core.utils.platform.actions.AbstractAction;
import org.org.eclipse.core.utils.platform.actions.AbstractObjectAction;
import org.org.eclipse.core.utils.platform.tools.PluginToolBox;
import org.org.eclipse.dws.ui.DWSUIPlugin;
import org.org.eclipse.dws.ui.internal.handlers.LookupJavadocAndSourcesHandler;


/**
 * This Action launches the Pom update application Synchronization Wizard.
 * 
 * @author pagregoire
 */
public class LookupJavadocAndSourcesActionDelegate extends AbstractObjectAction {
	
	/** The Constant ACTION_LABEL_ID. */
	public static final String ACTION_LABEL_ID = "Javadoc and Sources Lookup action"; //$NON-NLS-1$

	/**
	 * Checks if is enabled.
	 * 
	 * @return true, if checks if is enabled
	 * 
	 * @see org.org.eclipse.dws.utils.platform.actions.AbstractObjectAction#isEnabled()
	 */
	@Override
	public boolean isEnabled() {
		boolean result = false;
		if (getSelection().size() == 1) {
			result = true;
		}
		return result;
	}

	/**
	 * Gets the shell.
	 * 
	 * @return the shell
	 * 
	 * @see org.org.eclipse.dws.utils.platform.actions.AbstractObjectAction#getShell()
	 */
	@Override
	protected Shell getShell() {
		Shell result = null;
		if (this.getDefaultShell() != null) {
			result = this.getDefaultShell();
		} else {
			result = PluginToolBox.getActiveShell(DWSUIPlugin.getDefault());
		}
		return result;
	}

	/**
	 * Run.
	 * 
	 * @param action the action
	 * 
	 * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
	 */
	@Override
	public void run(IAction action) {
		run(new Runnable() {
			public void run() {
				IWorkbenchSite site = getTargetPart().getSite();
				IHandlerService handlerService = (IHandlerService) site.getService(IHandlerService.class);
				LookupJavadocAndSourcesHandler lookupJavadocAndSourcesHandler = new LookupJavadocAndSourcesHandler();
				try {
					lookupJavadocAndSourcesHandler.execute(new ExecutionEvent(null, Collections.EMPTY_MAP, null, handlerService.getCurrentState()));
				} catch (ExecutionException e) {
					ErrorDialog errorDialog = new ErrorDialog(ACTION_LABEL_ID, "Problem while trying to lookup javadoc and sources.", e);
					errorDialog.open();
				}
			}
		}, AbstractAction.ASYNC_EXEC);
	}
}