1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef PPAPI_PROXY_PLUGIN_RESOURCE_CALLBACK_H_ 6 #define PPAPI_PROXY_PLUGIN_RESOURCE_CALLBACK_H_ 7 8 #include "base/memory/ref_counted.h" 9 #include "ipc/ipc_message.h" 10 #include "ppapi/proxy/dispatch_reply_message.h" 11 #include "ppapi/proxy/resource_message_params.h" 12 13 namespace ppapi { 14 namespace proxy { 15 16 // |PluginResourceCallback| wraps a |base::Callback| on the plugin side which 17 // will be triggered in response to a particular message type being received. 18 // |MsgClass| is the reply message type that the callback will be called with 19 // and |CallbackType| is the type of the |base::Callback| that will be called. 20 class PluginResourceCallbackBase 21 : public base::RefCounted<PluginResourceCallbackBase> { 22 public: 23 virtual void Run(const ResourceMessageReplyParams& params, 24 const IPC::Message& msg) = 0; 25 protected: 26 friend class base::RefCounted<PluginResourceCallbackBase>; ~PluginResourceCallbackBase()27 virtual ~PluginResourceCallbackBase() {} 28 }; 29 30 template<typename MsgClass, typename CallbackType> 31 class PluginResourceCallback : public PluginResourceCallbackBase { 32 public: PluginResourceCallback(const CallbackType & callback)33 explicit PluginResourceCallback(const CallbackType& callback) 34 : callback_(callback) {} 35 Run(const ResourceMessageReplyParams & reply_params,const IPC::Message & msg)36 virtual void Run( 37 const ResourceMessageReplyParams& reply_params, 38 const IPC::Message& msg) OVERRIDE { 39 DispatchResourceReplyOrDefaultParams<MsgClass>( 40 &callback_, &CallbackType::Run, reply_params, msg); 41 } 42 43 private: ~PluginResourceCallback()44 virtual ~PluginResourceCallback() {} 45 46 CallbackType callback_; 47 }; 48 49 } // namespace proxy 50 } // namespace ppapi 51 52 #endif // PPAPI_PROXY_PLUGIN_RESOURCE_CALLBACK_H_ 53