1 /* 2 * Copyright (c) 2024 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_SYNTAX_FOR_EACH_BASE_NODE_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_SYNTAX_FOR_EACH_BASE_NODE_H 18 19 #include "core/components_ng/base/ui_node.h" 20 21 namespace OHOS::Ace::NG { 22 class ACE_EXPORT ForEachBaseNode : public UINode { 23 DECLARE_ACE_TYPE(ForEachBaseNode, UINode); 24 25 public: UINode(tag,nodeId,isRoot)26 ForEachBaseNode(const std::string& tag, int32_t nodeId, bool isRoot = false) : UINode(tag, nodeId, isRoot) {} 27 virtual void MoveData(int32_t from, int32_t to) = 0; 28 virtual RefPtr<FrameNode> GetFrameNode(int32_t index) = 0; RecycleItems(int32_t from,int32_t to)29 virtual void RecycleItems(int32_t from, int32_t to) {} FireOnMove(int32_t from,int32_t to)30 virtual void FireOnMove(int32_t from, int32_t to) 31 { 32 if (from != to && onMoveEvent_) { 33 onMoveEvent_(from, to); 34 } 35 } 36 FireOnLongPress(int32_t index)37 virtual void FireOnLongPress(int32_t index) 38 { 39 if (onLongPressEvent_) { 40 onLongPressEvent_(index); 41 } 42 } 43 FireOnDragStart(int32_t index)44 virtual void FireOnDragStart(int32_t index) 45 { 46 if (onDragStartEvent_) { 47 onDragStartEvent_(index); 48 } 49 } 50 FireOnMoveThrough(int32_t from,int32_t through)51 virtual void FireOnMoveThrough(int32_t from, int32_t through) 52 { 53 if (onMoveThroughEvent_) { 54 onMoveThroughEvent_(from, through); 55 } 56 } 57 FireOnDrop(int32_t index)58 virtual void FireOnDrop(int32_t index) 59 { 60 if (onDropEvent_) { 61 onDropEvent_(index); 62 } 63 } 64 IsSyntaxNode()65 bool IsSyntaxNode() const override 66 { 67 return true; 68 } 69 70 protected: 71 std::function<void(int32_t, int32_t)> onMoveEvent_; 72 std::function<void(int32_t)> onLongPressEvent_; 73 std::function<void(int32_t)> onDragStartEvent_; 74 std::function<void(int32_t, int32_t)> onMoveThroughEvent_; 75 std::function<void(int32_t)> onDropEvent_; 76 }; 77 } // namespace OHOS::Ace::NG 78 79 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_SYNTAX_FOR_EACH_BASE_NODE_H 80