com.nokia.carbide.cpp.internal.project.ui.views.RefreshSelectionAction.java Source code

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Here is the source code for com.nokia.carbide.cpp.internal.project.ui.views.RefreshSelectionAction.java

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/*
* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of the License "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description: 
*
*/
package com.nokia.carbide.cpp.internal.project.ui.views;

import com.nokia.carbide.cpp.internal.project.ui.ProjectUIPlugin;

import org.eclipse.cdt.core.model.*;
import org.eclipse.core.resources.IFile;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.actions.SelectionListenerAction;

public class RefreshSelectionAction extends SelectionListenerAction {

    /**
     * The id of this action.
     */
    public static final String ID = ProjectUIPlugin.PLUGIN_ID + ".RefreshSelectionAction"; //$NON-NLS-1$

    private SymbianProjectNavigatorView view = null;

    protected RefreshSelectionAction(SymbianProjectNavigatorView view) {
        super(Messages.RefreshSelectionAction_RefreshText);
        this.view = view;
        setToolTipText(Messages.RefreshSelectionAction_RefreshToolTip);
        setId(ID);
    }

    @Override
    public void run() {
        IStructuredSelection selection = getStructuredSelection();
        if (selection.isEmpty()) {
            // refresh the entire view
            view.getViewer().refresh();
            return;
        }

        for (Object o : selection.toArray()) {
            if (o instanceof ISPNViewRefreshable) {
                ((ISPNViewRefreshable) o).refresh();
                view.getViewer().refresh(o);
            } else if (o instanceof ICProject) {
                // this refreshes the viewer as well
                view.refreshProject((ICProject) o);
            } else {
                view.getViewer().refresh(o);
            }
        }
    }

    @Override
    protected boolean updateSelection(IStructuredSelection selection) {
        // enabled if selection is does not contain any IFile's.  everything
        // else that could be selected is IProject or SPNContainer's.
        if (!selection.isEmpty()) {
            for (Object o : selection.toArray()) {
                if (o instanceof IFile) {
                    return false;
                }
                if (o instanceof ICElement && !(o instanceof IParent)) {
                    // disable refresh for c elements that don't have children
                    return false;
                }
            }
        }

        return true;
    }
}