| /******************************************************************************* |
| * Copyright (c) 2004, 2006 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.internal.dialogs; |
| |
| import org.eclipse.jface.viewers.AbstractTreeViewer; |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerFilter; |
| import org.eclipse.ui.wizards.IWizardDescriptor; |
| |
| /** |
| * A viewer filter that will exclude all IWizardDescriptors that do not have at |
| * least one tag in a provided set. |
| * |
| * @since 3.1 |
| */ |
| public class WizardTagFilter extends ViewerFilter { |
| |
| private String [] myTags; |
| |
| /** |
| * Create a new instance of this filter |
| * @param tags the wizard tags to allow |
| */ |
| public WizardTagFilter(String [] tags) { |
| myTags = tags; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ViewerFilter#select(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object) |
| */ |
| public boolean select(Viewer viewer, Object parentElement, Object element) { |
| if (element instanceof IWizardDescriptor) { |
| IWizardDescriptor desc = (IWizardDescriptor)element; |
| String [] tags = desc.getTags(); |
| for (int i = 0; i < tags.length; i++) { |
| for (int j = 0; j < myTags.length; j++) { |
| if (tags[i].equals(myTags[j])) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| Object[] children = ((ITreeContentProvider) ((AbstractTreeViewer) viewer) |
| .getContentProvider()).getChildren(element); |
| if (children.length > 0) { |
| return filter(viewer, element, children).length > 0; |
| } |
| |
| return false; |
| } |
| } |
