1 /* 2 * Copyright (c) 2022 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_COMPONENTS_NG_PATTERNS_IMAGE_IMAGE_EVENT_HUB_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_IMAGE_IMAGE_EVENT_HUB_H 18 19 #include "base/memory/ace_type.h" 20 #include "core/components/image/image_event.h" 21 #include "core/components_ng/event/event_hub.h" 22 23 namespace OHOS::Ace::NG { 24 25 using CompleteEvent = std::function<void(const LoadImageSuccessEvent& info)>; 26 using ErrorEvent = std::function<void(const LoadImageFailEvent& info)>; 27 28 class ImageEventHub : public EventHub { 29 DECLARE_ACE_TYPE(ImageEventHub, EventHub) 30 31 public: 32 ImageEventHub() = default; 33 ~ImageEventHub() override = default; 34 SetOnError(ErrorEvent && errorEvent)35 void SetOnError(ErrorEvent&& errorEvent) 36 { 37 errorEvent_ = std::move(errorEvent); 38 } 39 FireErrorEvent(const LoadImageFailEvent & info)40 void FireErrorEvent(const LoadImageFailEvent& info) const 41 { 42 if (errorEvent_) { 43 errorEvent_(info); 44 } 45 } 46 SetOnComplete(CompleteEvent && completeEvent)47 void SetOnComplete(CompleteEvent&& completeEvent) 48 { 49 completeEvent_ = std::move(completeEvent); 50 } 51 FireCompleteEvent(const LoadImageSuccessEvent & info)52 void FireCompleteEvent(const LoadImageSuccessEvent& info) const 53 { 54 if (completeEvent_) { 55 completeEvent_(info); 56 } 57 } 58 59 private: 60 ErrorEvent errorEvent_; 61 CompleteEvent completeEvent_; 62 }; 63 64 } // namespace OHOS::Ace::NG 65 66 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_IMAGE_IMAGE_EVENT_HUB_H 67