| /******************************************************************************* |
| * 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.html.core.internal.commentelement.handlers; |
| |
| |
| |
| import org.eclipse.wst.xml.core.internal.commentelement.CommentElementHandler; |
| import org.eclipse.wst.xml.core.internal.commentelement.util.CommentElementFactory; |
| import org.eclipse.wst.xml.core.internal.commentelement.util.TagScanner; |
| import org.eclipse.wst.xml.core.internal.contentmodel.CMDocument; |
| import org.eclipse.wst.xml.core.internal.contentmodel.CMNamedNodeMap; |
| import org.eclipse.wst.xml.core.internal.contentmodel.modelquery.ModelQuery; |
| import org.eclipse.wst.xml.core.internal.modelquery.ModelQueryUtil; |
| import org.eclipse.wst.xml.core.internal.provisional.document.IDOMElement; |
| import org.eclipse.wst.xml.core.internal.provisional.document.ISourceGenerator; |
| import org.w3c.dom.Attr; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.NamedNodeMap; |
| |
| public class CommentElementHandlerForSSI implements CommentElementHandler { |
| |
| public Element createElement(Document document, String data, boolean isJSPTag) { |
| ModelQuery modelQuery = ModelQueryUtil.getModelQuery(document); |
| if (modelQuery == null) { |
| return null; |
| } |
| CMDocument cm = modelQuery.getCorrespondingCMDocument(document); |
| if (cm == null) { |
| return null; |
| } |
| CMNamedNodeMap map = cm.getElements(); |
| if (map == null) { |
| return null; |
| } |
| |
| TagScanner scanner = new TagScanner(data, 1); |
| String name = scanner.nextName(); |
| if (name == null) { |
| return null; |
| } |
| StringBuffer buffer = new StringBuffer(name.length() + 4); |
| buffer.append(SSI_PREFIX); |
| buffer.append(':'); |
| buffer.append(name); |
| String tagName = buffer.toString(); |
| // check if valid (defined) SSI tag or not |
| if (map.getNamedItem(tagName) == null) { |
| return null; |
| } |
| |
| CommentElementFactory factory = new CommentElementFactory(document, isJSPTag, this); |
| Element element = factory.create(tagName, CommentElementFactory.IS_START); |
| |
| // set attributes |
| String attrName = scanner.nextName(); |
| while (attrName != null) { |
| String attrValue = scanner.nextValue(); |
| Attr attr = document.createAttribute(attrName); |
| if (attr != null) { |
| if (attrValue != null) |
| attr.setValue(attrValue); |
| element.setAttributeNode(attr); |
| } |
| attrName = scanner.nextName(); |
| } |
| return element; |
| } |
| |
| public String generateStartTagContent(IDOMElement element) { |
| ISourceGenerator generator = element.getModel().getGenerator(); |
| StringBuffer buffer = new StringBuffer(); |
| |
| buffer.append('#'); |
| buffer.append(element.getLocalName()); |
| |
| NamedNodeMap attributes = element.getAttributes(); |
| int length = attributes.getLength(); |
| for (int i = 0; i < length; i++) { |
| Attr attr = (Attr) attributes.item(i); |
| if (attr == null) { |
| continue; |
| } |
| buffer.append(' '); |
| String attrName = generator.generateAttrName(attr); |
| if (attrName != null) { |
| buffer.append(attrName); |
| } |
| String attrValue = generator.generateAttrValue(attr); |
| if (attrValue != null) { |
| // attr name only for HTML boolean and JSP |
| buffer.append('='); |
| buffer.append(attrValue); |
| } |
| } |
| |
| return buffer.toString(); |
| } |
| |
| public String generateEndTagContent(IDOMElement element) { |
| return null; // always empty |
| } |
| |
| public boolean isEmpty() { |
| return true; |
| } |
| |
| public boolean isCommentElement(IDOMElement element) { |
| if (element == null) { |
| return false; |
| } |
| Document document = element.getOwnerDocument(); |
| ModelQuery modelQuery = ModelQueryUtil.getModelQuery(document); |
| if (modelQuery == null) { |
| return false; |
| } |
| CMDocument cm = modelQuery.getCorrespondingCMDocument(document); |
| if (cm == null) { |
| return false; |
| } |
| CMNamedNodeMap map = cm.getElements(); |
| if (map == null) { |
| return false; |
| } |
| String prefix = element.getPrefix(); |
| if (prefix == null || !prefix.equals(SSI_PREFIX)) { |
| return false; |
| } |
| String tagName = element.getTagName(); |
| if (tagName.length() <= 4) { |
| return false; |
| } |
| if (map.getNamedItem(tagName) == null) { |
| return false; |
| } |
| else { |
| return true; |
| } |
| } |
| |
| private static final String SSI_PREFIX = "ssi";//$NON-NLS-1$ |
| } |