01: /*******************************************************************************
02: * Copyright (c) 2004, 2006 IBM Corporation and others.
03: * All rights reserved. This program and the accompanying materials
04: * are made available under the terms of the Eclipse Public License v1.0
05: * which accompanies this distribution, and is available at
06: * http://www.eclipse.org/legal/epl-v10.html
07: *
08: * Contributors:
09: * IBM Corporation - initial API and implementation
10: *******************************************************************************/package org.eclipse.ui.internal.dialogs;
11:
12: import org.eclipse.jface.viewers.AbstractTreeViewer;
13: import org.eclipse.jface.viewers.ITreeContentProvider;
14: import org.eclipse.jface.viewers.Viewer;
15: import org.eclipse.jface.viewers.ViewerFilter;
16: import org.eclipse.ui.activities.WorkbenchActivityHelper;
17: import org.eclipse.ui.model.AdaptableList;
18:
19: /**
20: * Viewer filter designed to work with the new wizard page (and its input/content provider).
21: * This will filter all non-primary wizards that are not enabled by activity.
22: *
23: * @since 3.0
24: */
25: public class WizardActivityFilter extends ViewerFilter {
26:
27: /* (non-Javadoc)
28: * @see org.eclipse.jface.viewers.ViewerFilter#select(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
29: */
30: public boolean select(Viewer viewer, Object parentElement,
31: Object element) {
32: Object[] children = ((ITreeContentProvider) ((AbstractTreeViewer) viewer)
33: .getContentProvider()).getChildren(element);
34: if (children.length > 0) {
35: return filter(viewer, element, children).length > 0;
36: }
37:
38: if (parentElement.getClass().equals(AdaptableList.class)) {
39: return true; //top-level ("primary") wizards should always be returned
40: }
41:
42: if (WorkbenchActivityHelper.filterItem(element)) {
43: return false;
44: }
45:
46: return true;
47: }
48: }
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