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_PATTERN_SCROLL_SCROLL_SPRING_EFFECT_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_SCROLL_SCROLL_SPRING_EFFECT_H 18 19 #include "core/components_ng/pattern/scroll/scroll_edge_effect.h" 20 21 namespace OHOS::Ace::NG { 22 23 class ACE_EXPORT ScrollSpringEffect final : public ScrollEdgeEffect { 24 DECLARE_ACE_TYPE(ScrollSpringEffect, ScrollEdgeEffect); 25 26 public: ScrollSpringEffect()27 ScrollSpringEffect() : ScrollEdgeEffect(EdgeEffect::SPRING) {} 28 ~ScrollSpringEffect() override = default; 29 30 void RegisterSpringCallback() override; 31 void InitialEdgeEffect() override; 32 void ProcessScrollOver(double velocity) override; 33 void ProcessSpringUpdate() override; 34 SetOutBoundaryCallback(const OutBoundaryCallback & outBoundaryCallback)35 void SetOutBoundaryCallback(const OutBoundaryCallback& outBoundaryCallback) 36 { 37 outBoundaryCallback_ = outBoundaryCallback; 38 } 39 SetOnWillStartSpringCallback(const std::function<void ()> & onWillStartSpringCallback)40 void SetOnWillStartSpringCallback(const std::function<void()>& onWillStartSpringCallback) 41 { 42 onWillStartSpringCallback_ = onWillStartSpringCallback; 43 } 44 45 private: 46 OutBoundaryCallback outBoundaryCallback_; 47 std::function<void()> onWillStartSpringCallback_; 48 }; 49 50 } // namespace OHOS::Ace::NG 51 52 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_SCROLL_SCROLL_SPRING_EFFECT_H 53