- Add CefDragHandler to support examination of drag data and cancellation of drag requests (issue #297).

- Mac: Fix dragging of URLs by providing a default image if no drag image is supplied.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@279 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/drag_data_impl.h

@@ -0,0 +1,36 @@
+// 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 _DRAG_DATA_IMPL_H
+#define _DRAG_DATA_IMPL_H
+
+#include "../include/cef.h"
+#include "webkit/glue/webdropdata.h"
+
+// Implementation of CefDragData.
+class CefDragDataImpl : public CefDragData
+{
+public:
+  explicit CefDragDataImpl(const WebDropData& data);
+
+  virtual bool IsLink();
+  virtual bool IsFragment();
+  virtual bool IsFile();
+  virtual CefString GetLinkURL();
+  virtual CefString GetLinkTitle();
+  virtual CefString GetLinkMetadata();
+  virtual CefString GetFragmentText();
+  virtual CefString GetFragmentHtml();
+  virtual CefString GetFragmentBaseURL();
+  virtual CefString GetFileExtension();
+  virtual CefString GetFileName();
+  virtual bool GetFileNames(std::vector<CefString>& names);
+
+protected:
+  WebDropData data_;
+
+  IMPLEMENT_REFCOUNTING(CefDragDataImpl);
+};
+
+#endif // _DRAG_DATA_IMPL_H