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_LAYOUT_PROPERTY_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_SCROLL_SCROLL_LAYOUT_PROPERTY_H 18 19 #include <memory> 20 #include <unordered_map> 21 22 #include "base/geometry/axis.h" 23 #include "base/utils/macros.h" 24 #include "core/components/common/layout/constants.h" 25 #include "core/components_ng/layout/layout_property.h" 26 #include "core/components_ng/pattern/scroll/scroll_edge_effect.h" 27 #include "core/components_ng/property/property.h" 28 29 namespace OHOS::Ace::NG { 30 class ACE_EXPORT ScrollLayoutProperty : public LayoutProperty { 31 DECLARE_ACE_TYPE(ScrollLayoutProperty, LayoutProperty); 32 33 public: 34 ScrollLayoutProperty() = default; 35 Clone()36 RefPtr<LayoutProperty> Clone() const override 37 { 38 auto value = MakeRefPtr<ScrollLayoutProperty>(); 39 value->LayoutProperty::UpdateLayoutProperty(DynamicCast<LayoutProperty>(this)); 40 value->propAxis_ = CloneAxis(); 41 value->propScrollEnabled_ = CloneScrollEnabled(); 42 value->propScrollSnapAlign_ = CloneScrollSnapAlign(); 43 value->propScrollContentEndOffset_ = CloneScrollContentEndOffset(); 44 return value; 45 } 46 Reset()47 void Reset() override 48 { 49 LayoutProperty::Reset(); 50 ResetAxis(); 51 ResetScrollEnabled(); 52 ResetScrollContentEndOffset(); 53 } 54 ToJsonValue(std::unique_ptr<JsonValue> & json)55 void ToJsonValue(std::unique_ptr<JsonValue>& json) const override 56 { 57 LayoutProperty::ToJsonValue(json); 58 std::unordered_map<Axis, std::string> scrollableMap { { Axis::VERTICAL, "ScrollDirection.Vertical" }, 59 { Axis::HORIZONTAL, "ScrollDirection.Horizontal" }, { Axis::FREE, "ScrollDirection.Free" }, 60 { Axis::NONE, "ScrollDirection.None" } }; 61 Axis axis = GetAxisValue(Axis::VERTICAL); 62 json->Put("scrollable", scrollableMap[axis].c_str()); 63 json->Put("enableScrollInteraction", propScrollEnabled_.value_or(true)); 64 std::unordered_map<ScrollSnapAlign, std::string> scrollSnapAlignMap { 65 { ScrollSnapAlign::NONE, "ScrollSnapAlign.NONE" }, { ScrollSnapAlign::START, "ScrollSnapAlign.START" }, 66 { ScrollSnapAlign::CENTER, "ScrollSnapAlign::CENTER" }, { ScrollSnapAlign::END, "ScrollSnapAlign::END" } 67 }; 68 ScrollSnapAlign scrollSnapAlign = propScrollSnapAlign_.value_or(ScrollSnapAlign::NONE); 69 json->Put("scrollSnapAlign", scrollSnapAlignMap[scrollSnapAlign].c_str()); 70 } 71 72 ACE_DEFINE_PROPERTY_ITEM_WITHOUT_GROUP(Axis, Axis, PROPERTY_UPDATE_MEASURE); 73 ACE_DEFINE_PROPERTY_ITEM_WITHOUT_GROUP(ScrollEnabled, bool, PROPERTY_UPDATE_MEASURE); 74 ACE_DEFINE_PROPERTY_ITEM_WITHOUT_GROUP(ScrollSnapAlign, ScrollSnapAlign, PROPERTY_UPDATE_MEASURE); 75 ACE_DEFINE_PROPERTY_ITEM_WITHOUT_GROUP(ScrollWidth, float, PROPERTY_UPDATE_MEASURE); 76 ACE_DEFINE_PROPERTY_ITEM_WITHOUT_GROUP(ScrollContentEndOffset, float, PROPERTY_UPDATE_MEASURE); 77 }; 78 79 } // namespace OHOS::Ace::NG 80 81 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERN_SCROLL_SCROLL_LAYOUT_PROPERTY_H 82