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diff --git a/src/plugin-loading/plugin.h b/src/plugin-loading/plugin.h
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+/*
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+/**
+ * @file        plugin.h
+ * @author      Przemyslaw Dobrowolski (p.dobrowolsk@samsung.com)
+ * @version     1.0
+ * @brief       This file is the implementation file of plugin
+ */
+#ifndef WRT_SRC_PLUGIN_SERVICE_PLUGIN_H_
+#define WRT_SRC_PLUGIN_SERVICE_PLUGIN_H_
+
+#include <list>
+#include <map>
+#include <string>
+#include <dpl/atomic.h>
+#include <memory>
+#include <dpl/noncopyable.h>
+#include <wrt_plugin_export.h>
+#include <Commons/JSObjectDeclaration.h>
+#include <dpl/wrt-dao-ro/wrt_db_types.h>
+
+class Plugin;
+typedef std::shared_ptr<Plugin> PluginPtr;
+
+class Plugin : private DPL::Noncopyable
+{
+  public:
+    typedef JSObjectDeclaration Class;
+    typedef JSObjectDeclarationPtr ClassPtr;
+    typedef std::list<ClassPtr> ClassList;
+    typedef std::shared_ptr<ClassList> ClassPtrList;
+
+  private:
+    ///< Plug-in identifier. Currently plug-in file name is used as the ID
+    std::string m_fileName;
+
+    ///< Handle for the plug-in library. A plug-in is a dynamic loadable library
+    void* m_libHandle;
+
+    // Plugin API
+    on_widget_start_proc* m_apiOnWidgetStart;
+    on_widget_init_proc* m_apiOnWidgetInit;
+    on_widget_stop_proc* m_apiOnWidgetStop;
+    on_frame_load_proc* m_apiOnFrameLoad;
+    on_frame_unload_proc* m_apiOnFrameUnload;
+    const ClassPtrList m_apiClassList;
+
+    Plugin(const std::string &fileName,
+           void *libHandle,
+           on_widget_start_proc* apiOnWidgetStart,
+           on_widget_init_proc* apiOnWidgetInit,
+           on_widget_stop_proc* apiOnWidgetStop,
+           on_frame_load_proc* apiOnFrameLoad,
+           on_frame_unload_proc* apiOnFrameUnload,
+           const ClassPtrList &apiClassList);
+
+  public:
+    virtual ~Plugin();
+
+    // Loading
+    static PluginPtr LoadFromFile(const std::string &fileName);
+
+    // Filename
+    std::string GetFileName() const;
+
+    // API
+    void OnWidgetStart(WidgetHandle widgetId);
+
+    void OnWidgetInit(feature_mapping_interface_t *interface);
+
+    void OnWidgetStop(WidgetHandle widgetId);
+
+    void OnFrameLoad(java_script_context_t context);
+
+    void OnFrameUnload(java_script_context_t context);
+
+    const ClassPtrList GetClassList() const;
+};
+
+#endif // PLUGIN_H