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_ACE_FRAMEWORKS_CORE_EVENT_EVENT_TRIGGER_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_EVENT_EVENT_TRIGGER_H 18 19 #include "base/log/log.h" 20 #include "core/event/ace_event_handler.h" 21 #include "core/event/ace_events.h" 22 #include "core/event/back_end_event_manager.h" 23 24 namespace OHOS::Ace { 25 26 class EventTrigger final { 27 public: RegisterEventHandler(const RefPtr<AceEventHandler> & handler)28 void RegisterEventHandler(const RefPtr<AceEventHandler>& handler) 29 { 30 handler_ = handler; 31 } 32 33 template<class... Args> TriggerAsyncEvent(const EventMarker & marker,Args &&...args)34 void TriggerAsyncEvent(const EventMarker& marker, Args&&... args) 35 { 36 if (!marker.GetData().isFront) { 37 LOGD("begin to use back end event manager to fire async event"); 38 BackEndEventManager<void(Args...)>::GetInstance().FireBackEndEvent(marker, std::forward<Args>(args)...); 39 LOGD("finish to use back end event manager to fire async event"); 40 return; 41 } 42 LOGD("begin to use event handler to fire async event"); 43 auto handler = handler_.Upgrade(); 44 if (!handler) { 45 LOGE("fail to trigger async event due to event handler is nullptr"); 46 return; 47 } 48 handler->HandleAsyncEvent(marker, std::forward<Args>(args)...); 49 LOGD("finish to use event handler to fire async event"); 50 } 51 52 template<class... Args> TriggerSyncEvent(const EventMarker & marker,Args &&...args)53 void TriggerSyncEvent(const EventMarker& marker, Args&&... args) 54 { 55 if (!marker.GetData().isFront) { 56 LOGD("begin to use back end event manager to fire sync event"); 57 BackEndEventManager<void(Args...)>::GetInstance().FireBackEndEvent(marker, std::forward<Args>(args)...); 58 LOGD("finish to use back end event manager to fire sync event"); 59 return; 60 } 61 LOGD("begin to use event handler to fire sync event"); 62 auto handler = handler_.Upgrade(); 63 if (!handler) { 64 LOGE("fail to trigger sync event due to event handler is nullptr"); 65 return; 66 } 67 handler->HandleSyncEvent(marker, std::forward<Args>(args)...); 68 LOGD("finish to use event handler to fire sync event"); 69 } 70 71 private: 72 WeakPtr<AceEventHandler> handler_; 73 }; 74 75 } // namespace OHOS::Ace 76 77 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_EVENT_EVENT_TRIGGER_H 78