/*******************************************************************************
 * Copyright (c) 2000, 2005 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.ui.views.navigator;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.osgi.util.NLS;
import org.eclipse.ui.internal.views.navigator.ResourceNavigatorMessages;
import org.eclipse.ui.views.framelist.TreeFrame;
import org.eclipse.ui.views.framelist.TreeViewerFrameSource;

/**
 * Frame source for the resource navigator.
 */
public class NavigatorFrameSource extends TreeViewerFrameSource {

    private ResourceNavigator navigator;

    /**
     * Constructs a new frame source for the specified resource navigator.
     * 
     * @param navigator the resource navigator
     */
    public NavigatorFrameSource(ResourceNavigator navigator) {
        super(navigator.getTreeViewer());
        this.navigator = navigator;
    }

    /**
     * Returns a new frame.  This implementation extends the super implementation
     * by setting the frame's tool tip text to show the full path for the input
     * element.
     */
    protected TreeFrame createFrame(Object input) {
        TreeFrame frame = super.createFrame(input);
        frame.setName(navigator.getFrameName(input));
        frame.setToolTipText(navigator.getFrameToolTipText(input));
        return frame;
    }

    /**
     * Also updates the navigator's title.
     */
    protected void frameChanged(TreeFrame frame) {
        IResource resource = (IResource) frame.getInput();
        IProject project = resource.getProject();

        if (project != null && project.isOpen() == false) {
            MessageDialog
                    .openInformation(
                            navigator.getViewSite().getShell(),
                            ResourceNavigatorMessages.NavigatorFrameSource_closedProject_title,
                            NLS.bind(ResourceNavigatorMessages.NavigatorFrameSource_closedProject_message, project.getName()));
            navigator.getFrameList().back();
        } else {
            super.frameChanged(frame);
            navigator.updateTitle();
        }
    }
}