Expose XML parsing support (issue #28).

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@119 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/xml_reader_impl.h

@@ -0,0 +1,69 @@
+// Copyright (c) 20010 The Chromium Embedded Framework Authors. All rights
+// reserved. Use of this source code is governed by a BSD-style license that
+// can be found in the LICENSE file.
+
+#ifndef _XML_READER_IMPL_H
+#define _XML_READER_IMPL_H
+
+#include "../include/cef.h"
+#include "base/platform_thread.h"
+#include <libxml/xmlreader.h>
+#include <sstream>
+
+// Implementation of CefXmlReader
+class CefXmlReaderImpl : public CefThreadSafeBase<CefXmlReader>
+{
+public:
+  CefXmlReaderImpl();
+  ~CefXmlReaderImpl();
+
+  // Initialize the reader context.
+  bool Initialize(CefRefPtr<CefStreamReader> stream,
+                  EncodingType encodingType, const std::wstring& URI);
+
+  virtual bool MoveToNextElement();
+  virtual bool Close();
+  virtual bool HasError();
+  virtual std::wstring GetError();
+  virtual NodeType GetType();
+  virtual int GetDepth();
+  virtual std::wstring GetLocalName();
+  virtual std::wstring GetPrefix();
+  virtual std::wstring GetQualifiedName();
+  virtual std::wstring GetNamespaceURI();
+  virtual std::wstring GetBaseURI();
+  virtual std::wstring GetXmlLang();
+  virtual bool IsEmptyElement();
+  virtual bool HasValue();
+  virtual std::wstring GetValue();
+  virtual bool HasAttributes();
+  virtual size_t GetAttributeCount();
+  virtual std::wstring GetAttribute(int index);
+  virtual std::wstring GetAttribute(const std::wstring& qualifiedName);
+  virtual std::wstring GetAttribute(const std::wstring& localName,
+                                    const std::wstring& namespaceURI);
+  virtual std::wstring GetInnerXml();
+  virtual std::wstring GetOuterXml();
+  virtual int GetLineNumber();
+  virtual bool MoveToAttribute(int index);
+  virtual bool MoveToAttribute(const std::wstring& qualifiedName);
+  virtual bool MoveToAttribute(const std::wstring& localName,
+                               const std::wstring& namespaceURI);
+  virtual bool MoveToFirstAttribute();
+  virtual bool MoveToNextAttribute();
+  virtual bool MoveToCarryingElement();
+
+  // Add another line to the error string.
+  void AppendError(const std::wstring& error_str);
+
+  // Verify that the reader exists and is being accessed from the correct
+  // thread.
+  bool VerifyContext();
+
+protected:
+  PlatformThreadId supported_thread_id_;
+  xmlTextReaderPtr reader_;
+  std::wstringstream error_buf_;
+};
+
+#endif // _XML_READER_IMPL_H