1 /* 2 * Copyright (c) 2022-2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef OHOS_NAPI_AVCONTROLLER_CALLBACK_H 17 #define OHOS_NAPI_AVCONTROLLER_CALLBACK_H 18 19 #include <list> 20 #include "avsession_info.h" 21 #include "avsession_log.h" 22 #include "napi/native_api.h" 23 #include "napi/native_node_api.h" 24 #include "napi_async_callback.h" 25 26 namespace OHOS::AVSession { 27 class NapiAVControllerCallback : public AVControllerCallback { 28 public: 29 enum { 30 EVENT_SESSION_DESTROY, 31 EVENT_PLAYBACK_STATE_CHANGE, 32 EVENT_META_DATA_CHANGE, 33 EVENT_ACTIVE_STATE_CHANGE, 34 EVENT_VALID_COMMAND_CHANGE, 35 EVENT_OUTPUT_DEVICE_CHANGE, 36 EVENT_SESSION_EVENT_CHANGE, 37 EVENT_QUEUE_ITEMS_CHANGE, 38 EVENT_QUEUE_TITLE_CHANGE, 39 EVENT_EXTRAS_CHANGE, 40 EVENT_AVCALL_META_DATA_CHANGE, 41 EVENT_AVCALL_STATE_CHANGE, 42 EVENT_TYPE_MAX, 43 }; 44 45 NapiAVControllerCallback(); 46 ~NapiAVControllerCallback() override; 47 48 void OnAVCallMetaDataChange(const AVCallMetaData& avCallMetaData) override; 49 void OnAVCallStateChange(const AVCallState& avCallState) override; 50 void OnSessionDestroy() override; 51 void OnPlaybackStateChange(const AVPlaybackState& state) override; 52 void OnMetaDataChange(const AVMetaData& data) override; 53 void OnActiveStateChange(bool isActive) override; 54 void OnValidCommandChange(const std::vector<int32_t>& cmds) override; 55 void OnOutputDeviceChange(const int32_t connectionState, const OutputDeviceInfo& info) override; 56 void OnSessionEventChange(const std::string& event, const AAFwk::WantParams& args) override; 57 void OnQueueItemsChange(const std::vector<AVQueueItem>& items) override; 58 void OnQueueTitleChange(const std::string& title) override; 59 void OnExtrasChange(const AAFwk::WantParams& extras) override; 60 61 napi_status AddCallback(napi_env env, int32_t event, napi_value callback); 62 napi_status RemoveCallback(napi_env env, int32_t event, napi_value callback); 63 void AddCallbackForSessionDestroy(const std::function<void(void)>& sessionDestroyCallback); 64 65 private: 66 void HandleEvent(int32_t event); 67 68 template<typename T> 69 void HandleEvent(int32_t event, const T& param); 70 71 template<typename T> 72 void HandleEvent(int32_t event, const std::string& firstParam, const T& secondParam); 73 74 template<typename T> 75 void HandleEvent(int32_t event, const int32_t firstParam, const T& secondParam); 76 77 template<typename T> 78 void HandleEventWithThreadSafe(int32_t event, int state, const T& param); 79 80 using NapiArgsGetter = std::function<void(napi_env env, int& argc, napi_value* argv)>; 81 82 static void CallWithThreadSafe(napi_ref& method, std::shared_ptr<bool> isValid, int state, 83 napi_threadsafe_function threadSafeFunction, const std::function<bool()>& checkCallbackValid, 84 NapiArgsGetter getter = NapiArgsGetter()); 85 static void ThreadSafeCallback(napi_env env, napi_value js_cb, void* context, void* data); 86 87 struct DataContextForThreadSafe { 88 napi_ref& method; 89 int state; 90 std::shared_ptr<bool> isValid; 91 NapiArgsGetter getter; 92 std::function<bool()> checkCallbackValid; 93 }; 94 95 std::mutex lock_; 96 std::shared_ptr<NapiAsyncCallback> asyncCallback_; 97 std::list<napi_ref> callbacks_[EVENT_TYPE_MAX] {}; 98 std::shared_ptr<bool> isValid_; 99 std::function<void(void)> sessionDestroyCallback_; 100 napi_threadsafe_function threadSafeFunction_ = nullptr; 101 static constexpr size_t ARGC_MAX = 6; 102 }; 103 } // namespace OHOS::AVSession 104 #endif // OHOS_NAPI_AVCONTROLLER_CALLBACK_H