Add support for accessing and modifying the DOM (issue #60).

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@191 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/dom_document_impl.h

@@ -0,0 +1,63 @@
+// Copyright (c) 2011 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 _DOM_DOCUMENT_IMPL_H
+#define _DOM_DOCUMENT_IMPL_H
+
+#include "include/cef.h"
+#include <map>
+
+namespace WebKit {
+class WebFrame;
+class WebNode;
+};
+
+class CefBrowserImpl;
+
+class CefDOMDocumentImpl : public CefThreadSafeBase<CefDOMDocument>
+{
+public:
+  CefDOMDocumentImpl(CefBrowserImpl* browser,
+                     WebKit::WebFrame* frame);
+  virtual ~CefDOMDocumentImpl();
+
+  virtual Type GetType();
+  virtual CefRefPtr<CefDOMNode> GetDocument();
+  virtual CefRefPtr<CefDOMNode> GetBody();
+  virtual CefRefPtr<CefDOMNode> GetHead();
+  virtual CefString GetTitle();
+  virtual CefRefPtr<CefDOMNode> GetElementById(const CefString& id);
+  virtual CefRefPtr<CefDOMNode> GetFocusedNode();
+  virtual bool HasSelection();
+  virtual CefRefPtr<CefDOMNode> GetSelectionStartNode();
+  virtual int GetSelectionStartOffset();
+  virtual CefRefPtr<CefDOMNode> GetSelectionEndNode();
+  virtual int GetSelectionEndOffset();
+  virtual CefString GetSelectionAsMarkup();
+  virtual CefString GetSelectionAsText();
+  virtual CefString GetBaseURL();
+  virtual CefString GetCompleteURL(const CefString& partialURL);
+
+  CefBrowserImpl* GetBrowser() { return browser_; }
+  WebKit::WebFrame* GetFrame() { return frame_; }
+
+  // The document maintains a map of all existing node objects.
+  CefRefPtr<CefDOMNode> GetOrCreateNode(const WebKit::WebNode& node);
+  void RemoveNode(const WebKit::WebNode& node);
+
+  // Must be called before the object is destroyed.
+  void Detach();
+
+  // Verify that the object exists and is being accessed on the UI thread.
+  bool VerifyContext();
+
+protected:
+  CefBrowserImpl* browser_;
+  WebKit::WebFrame* frame_;
+
+  typedef std::map<WebKit::WebNode,CefDOMNode*> NodeMap;
+  NodeMap node_map_;
+};
+
+#endif // _DOM_DOCUMENT_IMPL_H