| // 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_DEVICE_ENUMERATION_RESOURCE_HELPER_H_ |
| #define PPAPI_PROXY_DEVICE_ENUMERATION_RESOURCE_HELPER_H_ |
| |
| #include <vector> |
| |
| #include "base/basictypes.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/weak_ptr.h" |
| #include "ppapi/c/dev/ppb_device_ref_dev.h" |
| #include "ppapi/proxy/ppapi_proxy_export.h" |
| #include "ppapi/shared_impl/thread_aware_callback.h" |
| |
| namespace IPC { |
| class Message; |
| } |
| |
| struct PP_ArrayOutput; |
| |
| namespace ppapi { |
| |
| struct DeviceRefData; |
| class TrackedCallback; |
| |
| namespace proxy { |
| |
| class PluginResource; |
| class ResourceMessageReplyParams; |
| |
| class PPAPI_PROXY_EXPORT DeviceEnumerationResourceHelper |
| : public base::SupportsWeakPtr<DeviceEnumerationResourceHelper> { |
| public: |
| // |owner| must outlive this object. |
| explicit DeviceEnumerationResourceHelper(PluginResource* owner); |
| ~DeviceEnumerationResourceHelper(); |
| |
| int32_t EnumerateDevices0_2(PP_Resource* devices, |
| scoped_refptr<TrackedCallback> callback); |
| int32_t EnumerateDevices(const PP_ArrayOutput& output, |
| scoped_refptr<TrackedCallback> callback); |
| int32_t EnumerateDevicesSync(const PP_ArrayOutput& output); |
| int32_t MonitorDeviceChange(PP_MonitorDeviceChangeCallback callback, |
| void* user_data); |
| |
| // Returns true if the message has been handled. |
| bool HandleReply(const ResourceMessageReplyParams& params, |
| const IPC::Message& msg); |
| |
| void LastPluginRefWasDeleted(); |
| |
| private: |
| void OnPluginMsgEnumerateDevicesReply0_2( |
| PP_Resource* devices_resource, |
| scoped_refptr<TrackedCallback> callback, |
| const ResourceMessageReplyParams& params, |
| const std::vector<DeviceRefData>& devices); |
| void OnPluginMsgEnumerateDevicesReply( |
| const PP_ArrayOutput& output, |
| scoped_refptr<TrackedCallback> callback, |
| const ResourceMessageReplyParams& params, |
| const std::vector<DeviceRefData>& devices); |
| void OnPluginMsgNotifyDeviceChange(const ResourceMessageReplyParams& params, |
| uint32_t callback_id, |
| const std::vector<DeviceRefData>& devices); |
| |
| int32_t WriteToArrayOutput(const std::vector<DeviceRefData>& devices, |
| const PP_ArrayOutput& output); |
| |
| // Not owned by this object. |
| PluginResource* owner_; |
| |
| bool pending_enumerate_devices_; |
| |
| uint32_t monitor_callback_id_; |
| scoped_ptr<ThreadAwareCallback<PP_MonitorDeviceChangeCallback> > |
| monitor_callback_; |
| void* monitor_user_data_; |
| |
| DISALLOW_COPY_AND_ASSIGN(DeviceEnumerationResourceHelper); |
| }; |
| |
| } // namespace proxy |
| } // namespace ppapi |
| |
| #endif // PPAPI_PROXY_DEVICE_ENUMERATION_RESOURCE_HELPER_H_ |