com.aptana.ide.installer.actions.RemoveFeatureAction.java Source code

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Here is the source code for com.aptana.ide.installer.actions.RemoveFeatureAction.java

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/**
 * This file Copyright (c) 2005-2010 Aptana, Inc. This program is
 * dual-licensed under both the Aptana Public License and the GNU General
 * Public license. You may elect to use one or the other of these licenses.
 * 
 * This program is distributed in the hope that it will be useful, but
 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
 * NONINFRINGEMENT. Redistribution, except as permitted by whichever of
 * the GPL or APL you select, is prohibited.
 *
 * 1. For the GPL license (GPL), you can redistribute and/or modify this
 * program under the terms of the GNU General Public License,
 * Version 3, as published by the Free Software Foundation.  You should
 * have received a copy of the GNU General Public License, Version 3 along
 * with this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 * 
 * Aptana provides a special exception to allow redistribution of this file
 * with certain Eclipse Public Licensed code and certain additional terms
 * pursuant to Section 7 of the GPL. You may view the exception and these
 * terms on the web at http://www.aptana.com/legal/gpl/.
 * 
 * 2. For the Aptana Public License (APL), this program and the
 * accompanying materials are made available under the terms of the APL
 * v1.0 which accompanies this distribution, and is available at
 * http://www.aptana.com/legal/apl/.
 * 
 * You may view the GPL, Aptana's exception and additional terms, and the
 * APL in the file titled license.html at the root of the corresponding
 * plugin containing this source file.
 * 
 * Any modifications to this file must keep this entire header intact.
 */
package com.aptana.ide.installer.actions;

import java.net.URL;
import java.text.MessageFormat;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IViewActionDelegate;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.progress.UIJob;

import com.aptana.ide.installer.Activator;
import com.aptana.ide.update.FeatureUtil;
import com.aptana.ide.update.manager.IPlugin;
import com.aptana.ide.update.manager.PluginManagerException;

/**
 * Remove a feature.
 * 
 * @author cwilliams
 */
public class RemoveFeatureAction implements IObjectActionDelegate, IViewActionDelegate {

    private IViewPart view;
    private IPlugin selectedFeature;

    /**
     * @see org.eclipse.ui.IObjectActionDelegate#setActivePart(org.eclipse.jface.action.IAction,
     *      org.eclipse.ui.IWorkbenchPart)
     */
    public void setActivePart(IAction action, IWorkbenchPart targetPart) {
    }

    /**
     * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
     */
    public void run(IAction action) {
        boolean okay = MessageDialog.openConfirm(view.getViewSite().getShell(),
                Messages.getString("RemoveFeatureAction.TTL_Are_you_sure"), MessageFormat.format( //$NON-NLS-1$
                        Messages.getString("RemoveFeatureAction.MSG_Uninstall_feature_prompt"), selectedFeature //$NON-NLS-1$
                                .getName()));
        if (!okay)
            return;

        UIJob job = new UIJob(MessageFormat.format(Messages.getString("RemoveFeatureAction.Uninstall_job_title"), //$NON-NLS-1$
                selectedFeature.getName())) {
            @Override
            public IStatus runInUIThread(IProgressMonitor monitor) {
                try {
                    return Activator.getDefault().getPluginManager().uninstall(selectedFeature, monitor);
                } catch (PluginManagerException e) {
                    return new Status(IStatus.ERROR, Activator.PLUGIN_ID, -1, e.getMessage(), e);
                }
            }
        };
        job.schedule();
    }

    /**
     * @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction,
     *      org.eclipse.jface.viewers.ISelection)
     */
    public void selectionChanged(IAction action, ISelection selection) {
        this.selectedFeature = null;
        if (selection != null && !selection.isEmpty()) {
            if (selection instanceof IStructuredSelection) {
                IStructuredSelection sel = (IStructuredSelection) selection;
                Object element = sel.getFirstElement();
                if (element instanceof IPlugin) {
                    IPlugin ref = (IPlugin) element;
                    IPlugin ref2 = FeatureUtil.findInstalledPlugin(ref.getId());

                    if (ref2 != null) {
                        URL url = ref2.getURL();
                        String protocol = url.getProtocol();
                        if (protocol.equals("file")) //$NON-NLS-1$
                        {
                            this.selectedFeature = ref2;
                        }
                    }
                }
            }
        }
        action.setEnabled(selectedFeature != null);
    }

    /**
     * @see org.eclipse.ui.IViewActionDelegate#init(org.eclipse.ui.IViewPart)
     */
    public void init(IViewPart view) {
        this.view = view;
    }

}