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_FOR_EACH_FOR_EACH_MODEL_NG_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_SYNTAX_FOR_EACH_FOR_EACH_MODEL_NG_H 18 19 #include "base/memory/ace_type.h" 20 #include "base/utils/macros.h" 21 #include "core/components_ng/base/view_stack_processor.h" 22 #include "core/components_ng/syntax/lazy_for_each_builder.h" 23 #include "core/components_ng/syntax/lazy_for_each_model.h" 24 #include "core/components_ng/syntax/lazy_for_each_node.h" 25 26 namespace OHOS::Ace::NG { 27 class ACE_EXPORT LazyForEachModelNG : public LazyForEachModel { 28 public: Create(const RefPtr<LazyForEachActuator> & actuator)29 void Create(const RefPtr<LazyForEachActuator>& actuator) override 30 { 31 auto builder = AceType::DynamicCast<LazyForEachBuilder>(actuator); 32 Create(builder); 33 } 34 OnMove(std::function<void (int32_t,int32_t)> && onMove)35 void OnMove(std::function<void(int32_t, int32_t)>&& onMove) override 36 { 37 auto* stack = ViewStackProcessor::GetInstance(); 38 auto node = AceType::DynamicCast<LazyForEachNode>(stack->GetMainElementNode()); 39 CHECK_NULL_VOID(node); 40 node->SetOnMove(std::move(onMove)); 41 } 42 SetItemDragHandler(std::function<void (int32_t)> && onLongPress,std::function<void (int32_t)> && onDragStart,std::function<void (int32_t,int32_t)> && onMoveThrough,std::function<void (int32_t)> && onDrop)43 void SetItemDragHandler(std::function<void(int32_t)>&& onLongPress, std::function<void(int32_t)>&& onDragStart, 44 std::function<void(int32_t, int32_t)>&& onMoveThrough, std::function<void(int32_t)>&& onDrop) override 45 { 46 auto* stack = ViewStackProcessor::GetInstance(); 47 auto node = AceType::DynamicCast<LazyForEachNode>(stack->GetMainElementNode()); 48 CHECK_NULL_VOID(node); 49 node->SetItemDragHandler( 50 std::move(onLongPress), std::move(onDragStart), std::move(onMoveThrough), std::move(onDrop)); 51 } 52 53 private: Create(const RefPtr<LazyForEachBuilder> & forEachBuilder)54 void Create(const RefPtr<LazyForEachBuilder>& forEachBuilder) 55 { 56 auto* stack = ViewStackProcessor::GetInstance(); 57 auto nodeId = stack->ClaimNodeId(); 58 59 if (stack->GetMainFrameNode() && stack->GetMainFrameNode()->GetTag() == V2::TABS_ETS_TAG) { 60 forEachBuilder->ExpandChildrenOnInitial(); 61 return; 62 } 63 64 auto lazyForEach = LazyForEachNode::GetOrCreateLazyForEachNode(nodeId, forEachBuilder); 65 stack->Push(lazyForEach); 66 } 67 }; 68 } // namespace OHOS::Ace::NG 69 70 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_SYNTAX_FOR_EACH_FOR_EACH_MODEL_NG_H 71