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/**
* (The MIT License)
*
* Copyright (c) 2008 - 2012:
*
* * {Aaron Patterson}[http://tenderlovemaking.com]
* * {Mike Dalessio}[http://mike.daless.io]
* * {Charles Nutter}[http://blog.headius.com]
* * {Sergio Arbeo}[http://www.serabe.com]
* * {Patrick Mahoney}[http://polycrystal.org]
* * {Yoko Harada}[http://yokolet.blogspot.com]
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* 'Software'), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package nokogiri;
import org.jruby.Ruby;
import org.jruby.RubyClass;
import org.jruby.anno.JRubyClass;
import org.jruby.anno.JRubyMethod;
import org.jruby.runtime.Helpers;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import nokogiri.internals.HtmlDomParserContext;
import static nokogiri.internals.NokogiriHelpers.getNokogiriClass;
/**
* Class for Nokogiri::HTML::Document.
*
* @author sergio
* @author Yoko Harada <yokolet@gmail.com>
*/
@JRubyClass(name="Nokogiri::HTML::Document", parent="Nokogiri::XML::Document")
public class HtmlDocument extends XmlDocument {
private static final String DEFAULT_CONTENT_TYPE = "html";
private static final String DEFAULT_PUBLIC_ID = "-//W3C//DTD HTML 4.01//EN";
private static final String DEFAULT_SYTEM_ID = "http://www.w3.org/TR/html4/strict.dtd";
private String parsed_encoding = null;
public HtmlDocument(Ruby ruby, RubyClass klazz) {
super(ruby, klazz);
}
public HtmlDocument(Ruby runtime, Document document) {
this(runtime, getNokogiriClass(runtime, "Nokogiri::XML::Document"), document);
}
public HtmlDocument(Ruby ruby, RubyClass klazz, Document doc) {
super(ruby, klazz, doc);
}
@JRubyMethod(name="new", meta = true, rest = true, required=0)
public static IRubyObject rbNew(ThreadContext context, IRubyObject klazz, IRubyObject[] args) {
final Ruby runtime = context.runtime;
HtmlDocument htmlDocument;
try {
Document docNode = createNewDocument(runtime);
htmlDocument = (HtmlDocument) NokogiriService.HTML_DOCUMENT_ALLOCATOR.allocate(runtime, (RubyClass) klazz);
htmlDocument.setDocumentNode(context.runtime, docNode);
} catch (Exception ex) {
throw asRuntimeError(runtime, "couldn't create document: ", ex);
}
Helpers.invoke(context, htmlDocument, "initialize", args);
return htmlDocument;
}
public IRubyObject getInternalSubset(ThreadContext context) {
IRubyObject internalSubset = super.getInternalSubset(context);
// html documents are expected to have a default internal subset
// the default values are the same ones used when the following
// feature is turned on
// "http://cyberneko.org/html/features/insert-doctype"
// the reason we don't turn it on, is because it overrides the document's
// declared doctype declaration.
if (internalSubset.isNil()) {
internalSubset = XmlDtd.newEmpty(context.getRuntime(),
getDocument(),
context.getRuntime().newString(DEFAULT_CONTENT_TYPE),
context.getRuntime().newString(DEFAULT_PUBLIC_ID),
context.getRuntime().newString(DEFAULT_SYTEM_ID));
setInternalSubset(internalSubset);
}
return internalSubset;
}
@Override
void init(Ruby runtime, Document document) {
stabilizeTextContent(document);
document.normalize();
setInstanceVariable("@decorators", runtime.getNil());
if (document.getDocumentElement() != null) {
stabilizeAttrs(document.getDocumentElement());
}
}
private static void stabilizeAttrs(Node node) {
if (node.hasAttributes()) {
NamedNodeMap nodeMap = node.getAttributes();
for (int i=0; i<nodeMap.getLength(); i++) {
Node n = nodeMap.item(i);
if (n instanceof Attr) {
stabilizeAttr((Attr) n);
}
}
}
NodeList children = node.getChildNodes();
for (int i=0; i<children.getLength(); i++) {
stabilizeAttrs(children.item(i));
}
}
public void setParsedEncoding(String encoding) {
parsed_encoding = encoding;
}
public String getPraedEncoding() {
return parsed_encoding;
}
/*
* call-seq:
* read_io(io, url, encoding, options)
*
* Read the HTML document from +io+ with given +url+, +encoding+,
* and +options+. See Nokogiri::HTML.parse
*/
@JRubyMethod(meta = true, required = 4)
public static IRubyObject read_io(ThreadContext context, IRubyObject klass, IRubyObject[] args) {
HtmlDomParserContext ctx = new HtmlDomParserContext(context.runtime, args[2], args[3]);
ctx.setIOInputSource(context, args[0], args[1]);
return ctx.parse(context, (RubyClass) klass, args[1]);
}
/*
* call-seq:
* read_memory(string, url, encoding, options)
*
* Read the HTML document contained in +string+ with given +url+, +encoding+,
* and +options+. See Nokogiri::HTML.parse
*/
@JRubyMethod(meta = true, required = 4)
public static IRubyObject read_memory(ThreadContext context, IRubyObject klass, IRubyObject[] args) {
HtmlDomParserContext ctx = new HtmlDomParserContext(context.runtime, args[2], args[3]);
ctx.setStringInputSource(context, args[0], args[1]);
return ctx.parse(context, (RubyClass) klass, args[1]);
}
}
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