/*******************************************************************************
* Copyright (c) 2014, 2015 Red Hat.
* 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:
* Red Hat - Initial Contribution
*******************************************************************************/
package org.eclipse.linuxtools.internal.docker.ui.views;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.linuxtools.docker.core.IDockerImage;
import org.eclipse.linuxtools.docker.core.IDockerImageHierarchyNode;
/**
* @author xcoulon
*
*/
public class TopLevelImagesViewerFilter extends ViewerFilter {
/**
* Default constructor
*/
public TopLevelImagesViewerFilter() {
super();
}
/**
* @return {@code false} when the given element is a {@link IDockerImage} which is either intermediate or dangling. Returns {@code true} otherwise.
* @see org.eclipse.jface.viewers.ViewerFilter#select(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
*/
@Override
public boolean select(Viewer viewer, Object parentElement, Object element) {
if(element instanceof IDockerImage) {
return !((IDockerImage)element).isDangling() || !((IDockerImage)element).isIntermediateImage();
} else if (element instanceof IDockerImageHierarchyNode) {
return select(viewer, parentElement,
((IDockerImageHierarchyNode) element).getElement());
}
return true;
}
}