| /* DomImpl.java -- |
| Copyright (C) 1999,2000,2001,2004 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| package gnu.xml.dom; |
| |
| import org.w3c.dom.Document; |
| import org.w3c.dom.DocumentType; |
| import org.w3c.dom.DOMException; |
| import org.w3c.dom.DOMImplementation; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.ls.DOMImplementationLS; |
| import org.w3c.dom.ls.LSInput; |
| import org.w3c.dom.ls.LSOutput; |
| import org.w3c.dom.ls.LSParser; |
| import org.w3c.dom.ls.LSSerializer; |
| import gnu.xml.dom.ls.DomLSInput; |
| import gnu.xml.dom.ls.DomLSOutput; |
| import gnu.xml.dom.ls.DomLSParser; |
| import gnu.xml.dom.ls.DomLSSerializer; |
| |
| /** |
| * <p> "DOMImplementation" implementation. </p> |
| * |
| * <p> At this writing, the following features are supported: |
| * "XML" (L1, L2, L3), |
| * "Events" (L2), "MutationEvents" (L2), "USER-Events" (a conformant extension), |
| * "HTMLEvents" (L2), "UIEvents" (L2), "Traversal" (L2), "XPath" (L3), |
| * "LS" (L3) "LS-Async" (L3). |
| * It is possible to compile the package so it doesn't support some of these |
| * features (notably, Traversal). |
| * |
| * @author David Brownell |
| * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> |
| */ |
| public class DomImpl |
| implements DOMImplementation, DOMImplementationLS |
| { |
| |
| /** |
| * Constructs a DOMImplementation object which supports |
| * "XML" and other DOM Level 2 features. |
| */ |
| public DomImpl() |
| { |
| } |
| |
| /** |
| * <b>DOM L1</b> |
| * Returns true if the specified feature and version are |
| * supported. Note that the case of the feature name is ignored. |
| */ |
| public boolean hasFeature(String name, String version) |
| { |
| if (name.length() == 0) |
| { |
| return false; |
| } |
| name = name.toLowerCase(); |
| if (name.charAt(0) == '+') |
| { |
| name = name.substring(1); |
| } |
| |
| if ("xml".equals(name) || "core".equals(name)) |
| { |
| return (version == null || |
| "".equals(version) || |
| "1.0".equals(version) || |
| "2.0".equals(version) || |
| "3.0".equals(version)); |
| |
| } |
| else if ("ls".equals(name) || "ls-async".equals(name)) |
| { |
| return (version == null || |
| "".equals(version) || |
| "3.0".equals(version)); |
| } |
| else if ("events".equals(name) |
| || "mutationevents".equals(name) |
| || "uievents".equals(name) |
| // || "mouseevents".equals(name) |
| || "htmlevents".equals(name)) |
| { |
| return (version == null || |
| "".equals(version) || |
| "2.0".equals(version)); |
| |
| // Extension: "USER-" prefix event types can |
| // be created and passed through the DOM. |
| |
| } |
| else if ("user-events".equals(name)) |
| { |
| return (version == null || |
| "".equals(version) || |
| "0.1".equals(version)); |
| |
| // NOTE: "hasFeature" for events is here interpreted to |
| // mean the DOM can manufacture those sorts of events, |
| // since actually choosing to report the events is more |
| // often part of the environment or application. It's |
| // only really an issue for mutation events. |
| |
| } |
| else if (DomNode.reportMutations |
| && "traversal".equals(name)) |
| { |
| return (version == null || |
| "".equals(version) || |
| "2.0".equals(version)); |
| } |
| else if ("xpath".equals(name)) |
| { |
| return (version == null || |
| "".equals(version) || |
| "3.0".equals(version)); |
| } |
| |
| // views |
| // stylesheets |
| // css, css2 |
| // range |
| |
| return false; |
| } |
| |
| /** |
| * <b>DOM L2</b> |
| * Creates and returns a DocumentType, associated with this |
| * implementation. This DocumentType can have no associated |
| * objects(notations, entities) until the DocumentType is |
| * first associated with a document. |
| * |
| * <p> Note that there is no implication that this DTD will |
| * be parsed by the DOM, or ever have contents. Moreover, the |
| * DocumentType created here can only be added to a document by |
| * the createDocument method(below). <em>That means that the only |
| * portable way to create a Document object is to start parsing, |
| * queue comment and processing instruction (PI) nodes, and then only |
| * create a DOM Document after <b>(a)</b> it's known if a DocumentType |
| * object is needed, and <b>(b) the name and namespace of the root |
| * element is known. Queued comment and PI nodes would then be |
| * inserted appropriately in the document prologue, both before and |
| * after the DTD node, and additional attributes assigned to the |
| * root element.</em> |
| *(One hopes that the final DOM REC fixes this serious botch.) |
| */ |
| public DocumentType createDocumentType(String rootName, |
| String publicId, |
| String systemId) |
| // CR2 deleted internal subset, ensuring DocumentType |
| // is 100% useless instead of just 90% so. |
| { |
| DomDocument.checkNCName(rootName, false); |
| return new DomDoctype(this, rootName, publicId, systemId, null); |
| } |
| |
| /** |
| * <b>DOM L2</b> |
| * Creates and returns a Document, populated only with a root element and |
| * optionally a document type(if that was provided). |
| */ |
| public Document createDocument(String namespaceURI, |
| String rootName, |
| DocumentType doctype) |
| { |
| Document doc = new DomDocument(this); |
| Element root = null; |
| |
| if (rootName != null) |
| { |
| root = doc.createElementNS(namespaceURI, rootName); |
| if (rootName.startsWith("xmlns:")) |
| { |
| throw new DomDOMException(DOMException.NAMESPACE_ERR, |
| "xmlns is reserved", null, 0); |
| } |
| } |
| // Bleech -- L2 seemingly _requires_ omission of xmlns attributes. |
| if (doctype != null) |
| { |
| doc.appendChild(doctype); // handles WRONG_DOCUMENT error |
| } |
| if (root != null) |
| { |
| doc.appendChild(root); |
| } |
| return doc; |
| } |
| |
| // DOM Level 3 |
| |
| public Object getFeature(String feature, String version) |
| { |
| if (hasFeature(feature, version)) |
| { |
| return this; |
| } |
| return null; |
| } |
| |
| // -- DOMImplementationLS -- |
| |
| public LSParser createLSParser(short mode, String schemaType) |
| throws DOMException |
| { |
| return new DomLSParser(mode, schemaType); |
| } |
| |
| public LSSerializer createLSSerializer() |
| { |
| return new DomLSSerializer(); |
| } |
| |
| public LSInput createLSInput() |
| { |
| return new DomLSInput(); |
| } |
| |
| public LSOutput createLSOutput() |
| { |
| return new DomLSOutput(); |
| } |
| |
| } |
| |
