| /******************************************************************************* |
| * Copyright (c) 2010, 2011 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.wst.sse.ui.internal.quickoutline; |
| |
| import org.eclipse.jface.viewers.ILabelProvider; |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.TreeViewer; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerFilter; |
| import org.eclipse.osgi.util.TextProcessor; |
| import org.eclipse.wst.sse.ui.internal.filter.StringMatcher; |
| |
| /** |
| * Default Viewer Filter to be used by the {@link QuickOutlinePopupDialog} |
| * <p> |
| * Based on {@link org.eclipse.jdt.internal.ui.text.AbstractInformationControl.NamePatternFilter} |
| * </p> |
| */ |
| public class StringPatternFilter extends ViewerFilter { |
| |
| private StringMatcher fStringMatcher; |
| |
| /* |
| * @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) { |
| StringMatcher matcher = fStringMatcher; |
| if (matcher == null || !(viewer instanceof TreeViewer)) |
| return true; |
| TreeViewer treeViewer = (TreeViewer) viewer; |
| |
| String matchName = ((ILabelProvider) treeViewer.getLabelProvider()).getText(element); |
| matchName = TextProcessor.deprocess(matchName); |
| if (matchName != null && matcher.match(matchName)) |
| return true; |
| |
| return hasUnfilteredChild(treeViewer, element); |
| } |
| |
| private boolean hasUnfilteredChild(TreeViewer viewer, Object element) { |
| Object[] children= ((ITreeContentProvider) viewer.getContentProvider()).getChildren(element); |
| for (int i= 0; i < children.length; i++) |
| if (select(viewer, element, children[i])) |
| return true; |
| return false; |
| } |
| |
| public void updatePattern(String pattern) { |
| if (pattern.length() == 0) { |
| fStringMatcher = null; |
| } |
| else { |
| fStringMatcher = new StringMatcher(pattern, pattern.toLowerCase().equals(pattern), false); |
| } |
| |
| } |
| |
| public StringMatcher getStringMatcher() { |
| return fStringMatcher; |
| } |
| |
| } |