com.synflow.ngDesign.ui.internal.navigator.actions.SelectionUtil.java Source code

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Here is the source code for com.synflow.ngDesign.ui.internal.navigator.actions.SelectionUtil.java

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/*******************************************************************************
 * Copyright (c) 2014 Synflow SAS.
 * 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:
 *    Matthieu Wipliez - initial API and implementation and/or initial documentation
 *******************************************************************************/
package com.synflow.ngDesign.ui.internal.navigator.actions;

import java.util.Iterator;
import java.util.List;

import org.eclipse.core.resources.IResource;
import org.eclipse.jface.viewers.IStructuredSelection;

import com.synflow.core.layout.ITreeElement;

/**
 * This class defines utility methods for selection.
 * 
 * @author Matthieu Wipliez
 *
 */
public class SelectionUtil {

    /**
     * Returns <code>true</code> if the given selection contains a source folder.
     * 
     * @param selection
     *            a structured selection
     * @return a boolean indicating whether the selection contains a source folder
     */
    public static boolean containsSourceFolder(IStructuredSelection selection) {
        for (Iterator<?> e = selection.iterator(); e.hasNext();) {
            Object next = e.next();
            if (next instanceof ITreeElement) {
                ITreeElement element = (ITreeElement) next;
                if (element.isSourceFolder()) {
                    return true;
                }
            }
        }
        return false;
    }

    /**
     * Removes resources that are adapted from packages/source folders.
     * 
     * @param selectedResources
     *            list of selected resources
     * @param selection
     *            structured selection
     */
    public static void discardTreeElements(List<IResource> selectedResources, IStructuredSelection selection) {
        for (Iterator<?> e = selection.iterator(); e.hasNext();) {
            Object next = e.next();
            if (next instanceof ITreeElement) {
                ITreeElement element = (ITreeElement) next;
                selectedResources.remove(element.getAdapter(IResource.class));
            }
        }
    }

}