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_PATTERNS_NAVROUTER_NAVROUTER_GROUP_NODE_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_NAVROUTER_NAVROUTER_GROUP_NODE_H 18 19 #include <cstdint> 20 21 #include "core/components_ng/base/frame_node.h" 22 #include "core/components_ng/base/group_node.h" 23 #include "core/components_ng/pattern/navigation/navigation_declaration.h" 24 #include "core/components_ng/pattern/navigation/navigation_group_node.h" 25 #include "core/components_ng/property/property.h" 26 27 namespace OHOS::Ace::NG { 28 29 class ACE_EXPORT NavRouterGroupNode : public GroupNode { DECLARE_ACE_TYPE(NavRouterGroupNode,GroupNode)30 DECLARE_ACE_TYPE(NavRouterGroupNode, GroupNode) 31 public: 32 NavRouterGroupNode(const std::string& tag, int32_t nodeId, const RefPtr<Pattern>& pattern) 33 : GroupNode(tag, nodeId, pattern) 34 {} 35 ~NavRouterGroupNode() override = default; 36 void AddChildToGroup(const RefPtr<UINode>& child, int32_t slot = DEFAULT_NODE_SLOT) override; 37 void DeleteChildFromGroup(int32_t slot = DEFAULT_NODE_SLOT) override; 38 static RefPtr<NavRouterGroupNode> GetOrCreateGroupNode( 39 const std::string& tag, int32_t nodeId, const std::function<RefPtr<Pattern>(void)>& patternCreator); 40 IsAtomicNode()41 bool IsAtomicNode() const override 42 { 43 return false; 44 } 45 SetNavDestinationNode(const RefPtr<UINode> & navDestinationNode)46 void SetNavDestinationNode(const RefPtr<UINode>& navDestinationNode) 47 { 48 navDestinationNode_ = navDestinationNode; 49 } 50 GetNavDestinationNode()51 const RefPtr<UINode>& GetNavDestinationNode() const 52 { 53 // get the NavDestinationNode which is the child of the NavRouter 54 return navDestinationNode_; 55 } 56 57 void OnDetachFromMainTree(bool recursive, PipelineContext* context = nullptr) override; 58 void OnAttachToMainTree(bool recursive) override; 59 60 void OnOffscreenProcess(bool recursive) override; 61 62 private: 63 void AddNavDestinationToNavigation(); 64 65 void ProcessDestinationChangeEvent(); 66 67 RefPtr<UINode> navDestinationNode_; 68 WeakPtr<NavigationGroupNode> weakNavigation_; 69 }; 70 71 } // namespace OHOS::Ace::NG 72 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_NAVROUTER_NAVROUTER_GROUP_NODE_H 73