com.aptana.ide.ui.io.navigator.actions.FileSystemRefreshAction.java Source code

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Here is the source code for com.aptana.ide.ui.io.navigator.actions.FileSystemRefreshAction.java

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/**
 * Aptana Studio
 * Copyright (c) 2005-2011 by Appcelerator, Inc. All Rights Reserved.
 * Licensed under the terms of the GNU Public License (GPL) v3 (with exceptions).
 * Please see the license.html included with this distribution for details.
 * Any modifications to this file must keep this entire header intact.
 */
package com.aptana.ide.ui.io.navigator.actions;

import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.actions.BaseSelectionListenerAction;

import com.aptana.core.CoreStrings;
import com.aptana.ide.ui.io.IOUIPlugin;

/**
 * @author Michael Xia (mxia@aptana.com)
 */
public class FileSystemRefreshAction extends BaseSelectionListenerAction {

    private Object[] fSelectedElements;

    public FileSystemRefreshAction() {
        super(CoreStrings.REFRESH);
        setImageDescriptor(IOUIPlugin.getImageDescriptor("/icons/full/etool16/refresh.png")); //$NON-NLS-1$
        setToolTipText(Messages.FileSystemRefreshAction_ToolTip);
    }

    public void run() {
        if (fSelectedElements == null) {
            return;
        }
        for (Object element : fSelectedElements) {
            IOUIPlugin.refreshNavigatorView(element);
        }
    }

    protected boolean updateSelection(IStructuredSelection selection) {
        fSelectedElements = null;
        if (selection != null && !selection.isEmpty()) {
            fSelectedElements = selection.toArray();
        }
        return super.updateSelection(selection) && fSelectedElements != null;
    }
}