CloakAction.java

/**
 * 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 other free and open source software ("FOSS") 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.syncing.ui.actions;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.core.filesystem.IFileStore;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;

import com.aptana.ide.core.io.preferences.CloakingUtils;
import com.aptana.ide.syncing.ui.decorators.DecoratorUtils;
import com.aptana.ide.syncing.ui.internal.SyncUtils;

/**
 * Cloaks a specific file type so the files will be ignored during syncing.
 * 
 * @author Michael Xia (mxia@aptana.com)
 */
public class CloakAction implements IObjectActionDelegate {

    private List<IFileStore> fSelectedFiles;

    public CloakAction() {
        fSelectedFiles = new ArrayList<IFileStore>();
    }

    /**
     * @see org.eclipse.ui.IActionDelegate#run(IAction)
     */
    public void run(IAction action) {
        String expression;
        for (IFileStore fileStore : fSelectedFiles) {
            expression = getFileType(fileStore);
            CloakingUtils.addCloakFileType(expression);
        }

        DecoratorUtils.updateCloakDecorator();
    }

    /**
     * @see org.eclipse.ui.IActionDelegate#selectionChanged(IAction, ISelection)
     */
    public void selectionChanged(IAction action, ISelection selection) {
        action.setEnabled(false);
        fSelectedFiles.clear();

        if (!(selection instanceof IStructuredSelection) || selection.isEmpty()) {
            return;
        }

        Object[] elements = ((IStructuredSelection) selection).toArray();
        IFileStore fileStore;
        for (Object element : elements) {
            if (element instanceof IAdaptable) {
                fileStore = SyncUtils.getFileStore((IAdaptable) element);
                if (fileStore != null) {
                    if (!CloakingUtils.isFileCloaked(fileStore)) {
                        fSelectedFiles.add(fileStore);
                    }
                }
            }
        }
        action.setEnabled(fSelectedFiles.size() > 0);
    }

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

    private static String getFileType(IFileStore fileStore) {
        String name = fileStore.getName();
        int index = name.lastIndexOf("."); //$NON-NLS-1$
        if (index < 0) {
            return name;
        }
        return "*." + name.substring(index + 1); //$NON-NLS-1$
    }
}