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_COMMON_PIPELINE_NG_FORM_VISIBLE_MANAGER_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMMON_PIPELINE_NG_FORM_VISIBLE_MANAGER_H 18 19 #include <map> 20 #include "base/memory/ace_type.h" 21 #include "core/components_ng/base/frame_node.h" 22 23 namespace OHOS::Ace::NG { 24 class FormVisibleManager : public virtual AceType { 25 DECLARE_ACE_TYPE(FormVisibleManager, AceType); 26 public: 27 FormVisibleManager() = default; 28 ~FormVisibleManager() = default; 29 30 void AddFormVisibleChangeNode(const RefPtr<FrameNode>& node, const std::function<void(bool)>& callback); 31 void RemoveFormVisibleChangeNode(int32_t nodeId); 32 void HandleFormVisibleChangeEvent(bool isVisible); 33 34 private: 35 std::unordered_set<int32_t> onFormVisibleChangeNodeIds_; 36 std::map<int32_t, std::function<void(bool)>> onFormVisibleChangeEvents_; 37 }; 38 } // namespace OHOS::Ace::NG 39 40 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMMON_PIPELINE_NG_FORM_VISIBLE_MANAGER_H