| // Copyright (c) 2012 The Chromium 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 PPAPI_PROXY_GAMEPAD_RESOURCE_H_ |
| #define PPAPI_PROXY_GAMEPAD_RESOURCE_H_ |
| |
| #include <memory> |
| |
| #include "base/compiler_specific.h" |
| #include "base/macros.h" |
| #include "base/memory/shared_memory_mapping.h" |
| #include "device/gamepad/public/mojom/gamepad_hardware_buffer.h" |
| #include "ppapi/c/ppb_gamepad.h" |
| #include "ppapi/proxy/plugin_resource.h" |
| #include "ppapi/proxy/ppapi_proxy_export.h" |
| #include "ppapi/thunk/ppb_gamepad_api.h" |
| |
| struct PP_GamepadsSampleData; |
| |
| namespace ppapi { |
| namespace proxy { |
| |
| // This class is a bit weird. It isn't a true resource from the plugin's |
| // perspective. But we need to make requests to the browser and get replies. |
| // It's more convenient to do this as a resource, so the instance just |
| // maintains an internal lazily instantiated copy of this resource. |
| class PPAPI_PROXY_EXPORT GamepadResource |
| : public PluginResource, |
| public thunk::PPB_Gamepad_API { |
| public: |
| GamepadResource(Connection connection, PP_Instance instance); |
| ~GamepadResource() override; |
| |
| // Resource implementation. |
| thunk::PPB_Gamepad_API* AsPPB_Gamepad_API() override; |
| |
| // PPB_Gamepad_API. |
| void Sample(PP_Instance instance, PP_GamepadsSampleData* data) override; |
| |
| private: |
| void OnPluginMsgSendMemory(const ResourceMessageReplyParams& params); |
| |
| base::ReadOnlySharedMemoryMapping shared_memory_mapping_; |
| const device::GamepadHardwareBuffer* buffer_; |
| |
| // Last data returned so we can use this in the event of a read failure. |
| PP_GamepadsSampleData last_read_; |
| |
| DISALLOW_COPY_AND_ASSIGN(GamepadResource); |
| }; |
| |
| } // namespace proxy |
| } // namespace ppapi |
| |
| #endif // PPAPI_PROXY_GAMEPAD_RESOURCE_H_ |