| /******************************************************************************* |
| * Copyright (c) 2004, 2009 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.html.core.internal.htmlcss; |
| |
| |
| |
| import org.eclipse.wst.css.core.internal.provisional.adapters.IStyleSelectorAdapter; |
| import org.eclipse.wst.css.core.internal.provisional.document.ICSSSimpleSelector; |
| import org.eclipse.wst.sse.core.internal.provisional.INodeNotifier; |
| import org.w3c.dom.Element; |
| |
| import com.ibm.icu.util.StringTokenizer; |
| |
| /** |
| * Insert the type's description here. |
| */ |
| public class HTMLStyleSelectorAdapter implements IStyleSelectorAdapter { |
| |
| static private HTMLStyleSelectorAdapter instance; |
| private Object toMatch = IStyleSelectorAdapter.class; |
| |
| public synchronized static HTMLStyleSelectorAdapter getInstance() { |
| if (instance == null) { |
| instance = new HTMLStyleSelectorAdapter(); |
| } |
| return instance; |
| } |
| |
| public boolean isAdapterForType(Object type) { |
| return type == toMatch; |
| } |
| |
| public boolean match(ICSSSimpleSelector selector, Element element, String pseudoName) { |
| if (element == null) |
| return false; |
| int i; |
| String key; |
| |
| // PseudoName |
| i = selector.getNumOfPseudoNames(); |
| if (i > 0) { |
| if (pseudoName == null || pseudoName.length() == 0) |
| return false; |
| for (i = i - 1; i >= 0; i--) { |
| if (pseudoName.equalsIgnoreCase(selector.getPseudoName(i))) { |
| break; |
| } |
| } |
| if (i < 0) |
| return false; |
| } |
| |
| // check tag name |
| if (!selector.isUniversal() && !element.getNodeName().equalsIgnoreCase(selector.getName())) |
| return false; |
| |
| // check id |
| i = selector.getNumOfIDs(); |
| if (i > 0) { |
| if (i > 1) |
| return false; |
| if (!element.hasAttribute("id") || (key = element.getAttribute("id")).length() == 0)//$NON-NLS-1$ //$NON-NLS-2$ |
| return false; |
| if (!selector.getID(0).equals(key)) |
| return false; |
| } |
| |
| // check class |
| i = selector.getNumOfClasses(); |
| if (i > 0) { |
| if (!element.hasAttribute("class") || (key = element.getAttribute("class")).length() == 0) //$NON-NLS-1$ //$NON-NLS-2$ |
| return false; |
| StringTokenizer tokenizer = new StringTokenizer(key); |
| for (i = i - 1; i >= 0; i--) { |
| boolean ok = false; |
| while (tokenizer.hasMoreTokens()) { |
| if (selector.getClass(i).equals(tokenizer.nextToken())) { |
| ok = true; |
| break; |
| } |
| } |
| if (!ok) |
| return false; |
| } |
| } |
| |
| // check attributes |
| for (i = selector.getNumOfAttributes() - 1; i >= 0; i--) { |
| StringTokenizer tokenizer = new StringTokenizer(selector.getAttribute(i), "=~| \t\r\n\f");//$NON-NLS-1$ |
| int countTokens = tokenizer.countTokens(); |
| if (countTokens > 0) { |
| String attrName = tokenizer.nextToken(); |
| String attrValue = null; |
| if (!element.hasAttribute(attrName) || (attrValue = element.getAttribute(attrName)).length() == 0) |
| return false; |
| if (countTokens > 1) { |
| String token = tokenizer.nextToken("= \t\r\n\f");//$NON-NLS-1$ |
| StringTokenizer attrValueTokenizer = null; |
| if (token.equals("~")) {//$NON-NLS-1$ |
| attrValueTokenizer = new StringTokenizer(attrValue); |
| } |
| else if (token.equals("|")) {//$NON-NLS-1$ |
| attrValueTokenizer = new StringTokenizer(attrValue, "-");//$NON-NLS-1$ |
| } |
| if (attrValueTokenizer != null) { |
| if (tokenizer.hasMoreTokens()) { |
| token = tokenizer.nextToken(); |
| boolean ok = false; |
| while (attrValueTokenizer.hasMoreTokens()) { |
| if (token.equals(attrValueTokenizer.nextToken())) { |
| ok = true; |
| break; |
| } |
| } |
| if (!ok) |
| return false; |
| } |
| } |
| else { |
| if (!attrValue.equals(token)) |
| return false; |
| } |
| } |
| } |
| } |
| |
| return true; |
| } |
| |
| public void notifyChanged(INodeNotifier notifier, int eventType, Object changedFeature, Object oldValue, Object newValue, int pos) { |
| } |
| } |