uk.co.dancowan.robots.ui.views.filebrowser.FileBrowserView.java Source code

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Here is the source code for uk.co.dancowan.robots.ui.views.filebrowser.FileBrowserView.java

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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *  Copyright (C) 2009 Dan Cowan
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details (www.gnu.org/licenses)
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
package uk.co.dancowan.robots.ui.views.filebrowser;

import java.io.File;

import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.viewers.DoubleClickEvent;
import org.eclipse.jface.viewers.IDoubleClickListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;

import uk.co.dancowan.robots.ui.Activator;
import uk.co.dancowan.robots.ui.preferences.PreferenceConstants;
import uk.co.dancowan.robots.ui.utils.FileUtils;
import uk.co.dancowan.robots.ui.views.ScrolledView;

/**
 * Eclipse <code>View</code> implementation renders the local file system as a navigable tree
 * 
 * <p>Root directory of the tree is set from the preference:</p>
 * <pre>FILE_BROWSER_ROOT (robots.ui.views.FileBroswerRoot)</pre>
 * 
 * @author Dan Cowan
 * @since version 1.0.0
 */
public class FileBrowserView extends ScrolledView {
    public static final String ID = "uk.co.dancowan.robots.ui.fileBrowserView";

    private static final Point MIN_SIZE = new Point(300, 150);

    /**
     * C'tor.
     */
    public FileBrowserView() {
        //NOP
    }

    /**
     * @see uk.co.dancowan.robots.ui.views.ScrolledView#getMinSize()
     */
    @Override
    public Point getMinSize() {
        return MIN_SIZE;
    }

    /**
     * @see uk.co.dancowan.robots.ui.views.ScrolledView#getPartControl(org.eclipse.swt.widgets.Composite)
     */
    @Override
    public Control getPartControl(Composite parent) {
        final Composite part = new Composite(parent, SWT.NONE);
        part.setLayout(new FillLayout());

        final TreeViewer viewer = new TreeViewer(part, SWT.FULL_SELECTION);
        viewer.setContentProvider(new FileSystemContentProvider());
        viewer.setLabelProvider(new FileSystemLabelProvider());
        viewer.addDoubleClickListener(new IDoubleClickListener() {
            @Override
            public void doubleClick(DoubleClickEvent event) {
                IStructuredSelection selection = (IStructuredSelection) event.getSelection();
                Object obj = selection.getFirstElement();
                if (obj instanceof File) {
                    File file = (File) obj;
                    if (!file.isDirectory()) {
                        FileUtils.openFile(file);
                    } else {
                        viewer.setExpandedState(obj, !viewer.getExpandedState(obj));
                    }
                }
            }
        });
        IPreferenceStore store = Activator.getDefault().getPreferenceStore();
        String root = store.getString(PreferenceConstants.FILE_BROWSER_ROOT);
        viewer.setInput(new File(root));

        return part;
    }

    @Override
    public String getID() {
        return ID;
    }
}