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_CUSTOM_DATA, 43 EVENT_TYPE_MAX, 44 }; 45 46 NapiAVControllerCallback(); 47 ~NapiAVControllerCallback() override; 48 49 void OnAVCallMetaDataChange(const AVCallMetaData& avCallMetaData) override; 50 void OnAVCallStateChange(const AVCallState& avCallState) override; 51 void OnSessionDestroy() override; 52 void OnPlaybackStateChange(const AVPlaybackState& state) override; 53 void OnMetaDataChange(const AVMetaData& data) override; 54 void OnActiveStateChange(bool isActive) override; 55 void OnValidCommandChange(const std::vector<int32_t>& cmds) override; 56 void OnOutputDeviceChange(const int32_t connectionState, const OutputDeviceInfo& info) override; 57 void OnSessionEventChange(const std::string& event, const AAFwk::WantParams& args) override; 58 void OnQueueItemsChange(const std::vector<AVQueueItem>& items) override; 59 void OnQueueTitleChange(const std::string& title) override; 60 void OnExtrasChange(const AAFwk::WantParams& extras) override; 61 void OnCustomData(const AAFwk::WantParams& data) override; 62 63 napi_status AddCallback(napi_env env, int32_t event, napi_value callback); 64 napi_status RemoveCallback(napi_env env, int32_t event, napi_value callback); 65 void AddCallbackForSessionDestroy(const std::function<void(void)>& sessionDestroyCallback); 66 67 private: 68 void HandleEvent(int32_t event); 69 70 template<typename T> 71 void HandleEvent(int32_t event, const T& param); 72 73 template<typename T> 74 void HandleEvent(int32_t event, const std::string& firstParam, const T& secondParam); 75 76 template<typename T> 77 void HandleEvent(int32_t event, const int32_t firstParam, const T& secondParam); 78 79 template<typename T> 80 void HandleEventWithThreadSafe(int32_t event, int state, const T& param); 81 82 using NapiArgsGetter = std::function<void(napi_env env, int& argc, napi_value* argv)>; 83 84 static void CallWithThreadSafe(napi_ref& method, std::shared_ptr<bool> isValid, int state, 85 napi_threadsafe_function threadSafeFunction, const std::function<bool()>& checkCallbackValid, 86 NapiArgsGetter getter = NapiArgsGetter()); 87 static void ThreadSafeCallback(napi_env env, napi_value js_cb, void* context, void* data); 88 89 struct DataContextForThreadSafe { 90 napi_ref& method; 91 int state; 92 std::shared_ptr<bool> isValid; 93 NapiArgsGetter getter; 94 std::function<bool()> checkCallbackValid; 95 }; 96 97 std::mutex lock_; 98 std::shared_ptr<NapiAsyncCallback> asyncCallback_; 99 std::list<napi_ref> callbacks_[EVENT_TYPE_MAX] {}; 100 std::shared_ptr<bool> isValid_; 101 std::function<void(void)> sessionDestroyCallback_; 102 napi_threadsafe_function threadSafeFunction_ = nullptr; 103 static constexpr size_t ARGC_MAX = 6; 104 }; 105 } // namespace OHOS::AVSession 106 #endif // OHOS_NAPI_AVCONTROLLER_CALLBACK_H