| /******************************************************************************* |
| * Copyright (c) 2004 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.css.core.internal.util; |
| |
| |
| |
| import java.util.Iterator; |
| import java.util.Vector; |
| |
| import org.eclipse.wst.css.core.internal.provisional.document.ICSSNode; |
| import org.eclipse.wst.css.core.internal.provisional.document.ICSSSelector; |
| import org.eclipse.wst.css.core.internal.provisional.document.ICSSSelectorList; |
| import org.eclipse.wst.css.core.internal.provisional.document.ICSSStyleRule; |
| |
| |
| /** |
| * |
| */ |
| public class SelectorsCollector extends AbstractCssTraverser { |
| |
| protected Vector selectors = new Vector(); |
| protected Vector selectorsToAvoid = null; |
| |
| /** |
| * |
| */ |
| public SelectorsCollector() { |
| super(); |
| setTraverseImported(false); |
| } |
| |
| /** |
| * |
| */ |
| public void addSelectorToAvoid(ICSSSelector selToAvoid) { |
| if (selToAvoid == null) |
| return; |
| if (selectorsToAvoid == null) |
| selectorsToAvoid = new Vector(); |
| |
| if (!selectorsToAvoid.contains(selToAvoid)) |
| selectorsToAvoid.add(selToAvoid); |
| } |
| |
| /** |
| * |
| */ |
| public void addSelectorToAvoid(ICSSStyleRule rule) { |
| ICSSSelectorList list = rule.getSelectors(); |
| Iterator it = list.getIterator(); |
| while (it.hasNext()) { |
| ICSSSelector sel = (ICSSSelector) it.next(); |
| addSelectorToAvoid(sel); |
| } |
| } |
| |
| /** |
| * |
| */ |
| public java.util.List getSelectors() { |
| return selectors; |
| } |
| |
| /** |
| * |
| */ |
| protected short preNode(ICSSNode node) { |
| if (node.getNodeType() == ICSSNode.STYLERULE_NODE) { |
| ICSSStyleRule rule = (ICSSStyleRule) node; |
| ICSSSelectorList list = rule.getSelectors(); |
| Iterator it = list.getIterator(); |
| while (it.hasNext()) { |
| Object obj = it.next(); |
| if (selectorsToAvoid != null && selectorsToAvoid.contains(obj)) |
| continue; |
| if (!selectors.contains(obj)) |
| selectors.add(obj); |
| } |
| return TRAV_PRUNE; |
| } |
| else if (node.getNodeType() == ICSSNode.STYLESHEET_NODE) { |
| return TRAV_CONT; |
| } |
| return TRAV_PRUNE; |
| } |
| |
| /** |
| * |
| */ |
| public void setSelectorsToAvoid(java.util.Vector newSelectorsToAvoid) { |
| selectorsToAvoid = newSelectorsToAvoid; |
| } |
| } |