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_EDGE_EFFECT_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_SCROLL_SCROLL_EDGE_EFFECT_H 18 19 #include "core/components_ng/pattern/scroll/scroll_edge_effect_base.h" 20 #include "core/components_ng/render/render_context.h" 21 22 namespace OHOS::Ace::NG { 23 24 using HandleOverScrollCallback = std::function<void()>; 25 26 class ScrollEdgeEffect : public ScrollEdgeEffectBase { 27 DECLARE_ACE_TYPE(ScrollEdgeEffect, ScrollEdgeEffectBase); 28 29 public: ScrollEdgeEffect(EdgeEffect edgeEffect)30 explicit ScrollEdgeEffect(EdgeEffect edgeEffect) : ScrollEdgeEffectBase(edgeEffect) {} 31 32 ScrollEdgeEffect() = default; 33 34 ~ScrollEdgeEffect() override = default; 35 36 virtual void HandleOverScroll(Axis axis, float overScroll, const SizeF& viewPort, 37 bool isScrollFromUpdate = false, bool isNotPositiveScrollableDistance = false) {} 38 Paint(RSCanvas & canvas,const SizeF & viewPort,const OffsetF & offset)39 virtual void Paint(RSCanvas& canvas, const SizeF& viewPort, const OffsetF& offset) {} 40 SetHandleOverScrollCallback(const HandleOverScrollCallback & callback)41 virtual void SetHandleOverScrollCallback(const HandleOverScrollCallback& callback) {} 42 }; 43 44 } // namespace OHOS::Ace::NG 45 46 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_SCROLL_SCROLL_EDGE_EFFECT_H 47