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_SYNTAX_IF_ELSE_NODE_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_SYNTAX_IF_ELSE_NODE_H 18 19 #include <cstdint> 20 21 #include "base/utils/macros.h" 22 #include "core/components_ng/base/ui_node.h" 23 #include "core/components_v2/inspector/inspector_constants.h" 24 25 namespace OHOS::Ace::NG { 26 27 class ACE_EXPORT IfElseNode : public UINode { 28 DECLARE_ACE_TYPE(IfElseNode, UINode); 29 30 public: 31 static RefPtr<IfElseNode> GetOrCreateIfElseNode(int32_t nodeId); 32 IfElseNode(int32_t nodeId)33 explicit IfElseNode(int32_t nodeId) : UINode(V2::JS_IF_ELSE_ETS_TAG, nodeId) {} 34 ~IfElseNode() override = default; 35 IsAtomicNode()36 bool IsAtomicNode() const override 37 { 38 return false; 39 } 40 IsSyntaxNode()41 bool IsSyntaxNode() const override 42 { 43 return true; 44 } 45 46 void SetBranchId(int32_t value, std::list<int32_t>& removedElmtId, std::list<int32_t>& reservedElmtId); 47 GetBranchId()48 int32_t GetBranchId() const 49 { 50 return branchId_; 51 } 52 53 void FlushUpdateAndMarkDirty() override; 54 55 bool TryRetake(const std::string& id); 56 57 void CollectRetakenNodes(const RefPtr<UINode>& node); 58 59 bool GetRetakenElmtIds(std::list<int32_t>& retakenElmtIds); 60 61 private: 62 63 // uniquely identifies branches within if elseif else construct: 64 // if() { branch } else if () { branch } else { branch} 65 // -1 means uninitialized, before first rerender 66 int32_t branchId_ = -1; 67 68 // set by CompareBranchId 69 // unset by FlushUpdateAndMarkDirty 70 bool branchIdChanged_ = false; 71 72 std::list<int32_t> retakenElmtIds_; 73 74 ACE_DISALLOW_COPY_AND_MOVE(IfElseNode); 75 }; 76 77 } // namespace OHOS::Ace::NG 78 79 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_SYNTAX_IF_ELSE_NODE_H 80