1 /* 2 * Copyright (c) 2021 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 FOUNDATION_EVENT_CESFWK_INNERKITS_INCLUDE_COMMON_EVENT_LISTENER_H 17 #define FOUNDATION_EVENT_CESFWK_INNERKITS_INCLUDE_COMMON_EVENT_LISTENER_H 18 19 #include <mutex> 20 21 #include "event_handler.h" 22 #include "common_event_subscriber.h" 23 #include "event_receive_stub.h" 24 25 namespace OHOS { 26 namespace EventFwk { 27 class CommonEventListener : public EventReceiveStub { 28 public: 29 using EventHandler = OHOS::AppExecFwk::EventHandler; 30 using EventRunner = OHOS::AppExecFwk::EventRunner; 31 32 /** 33 * Constructor. 34 * 35 * @param commonEventSubscriber the CommonEventSubscriber object 36 */ 37 explicit CommonEventListener(const std::shared_ptr<CommonEventSubscriber> &commonEventSubscriber); 38 39 virtual ~CommonEventListener(); 40 41 /** 42 * Notifies event. 43 * 44 * @param data Indicates the common event data. 45 * @param ordered Indicates whether it is an ordered common event. 46 * @param sticky Indicates whether it is a sticky common event. 47 */ 48 void NotifyEvent(const CommonEventData &data, const bool &ordered, const bool &sticky) override; 49 50 /** 51 * Stops to receive events. 52 * 53 */ 54 void Stop(); 55 56 private: 57 ErrCode Init(); 58 59 std::shared_ptr<EventRunner> GetCommonRunner(); 60 61 void InitListenerQueue(); 62 63 bool IsReady(); 64 65 void OnReceiveEvent(const CommonEventData &commonEventData, const bool &ordered, const bool &sticky); 66 67 public: 68 static std::shared_ptr<EventRunner> commonRunner_; 69 70 private: 71 std::mutex mutex_; 72 std::shared_ptr<CommonEventSubscriber> commonEventSubscriber_; 73 std::shared_ptr<EventRunner> runner_; 74 std::shared_ptr<EventHandler> handler_; 75 void *listenerQueue_ = nullptr; 76 }; 77 } // namespace EventFwk 78 } // namespace OHOS 79 80 #endif // FOUNDATION_EVENT_CESFWK_INNERKITS_INCLUDE_COMMON_EVENT_LISTENER_H