1 /* 2 * Copyright (c) 2023 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_SCROLL_BAR_SCROLL_BAR_MODEL_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_SCROLL_BAR_SCROLL_BAR_MODEL_H 18 19 #include <mutex> 20 21 #include "base/memory/referenced.h" 22 #include "core/components/scroll_bar/scroll_bar_component.h" 23 #include "core/components/scroll_bar/scroll_bar_proxy.h" 24 #include "core/components/scroll_bar/scroll_proxy.h" 25 #include "core/components_ng/pattern/scroll_bar/proxy/scroll_bar_proxy.h" 26 #include "core/components_ng/pattern/scroll_bar/scroll_bar_pattern.h" 27 #include "core/components_ng/pattern/scroll_bar/scroll_bar_model.h" 28 29 namespace OHOS::Ace { 30 class ACE_FORCE_EXPORT ScrollBarModel { 31 public: 32 static ScrollBarModel* GetInstance(); 33 virtual ~ScrollBarModel() = default; 34 35 virtual RefPtr<ScrollProxy> GetScrollBarProxy(const RefPtr<ScrollProxy>& scrollProxy) = 0; 36 virtual void Create(const RefPtr<ScrollProxy>& proxy, bool infoflag, bool proxyFlag, 37 int directionValue, int stateValue) = 0; 38 virtual void SetEnableNestedScroll(bool enableNestedSroll) = 0; 39 private: 40 static std::unique_ptr<ScrollBarModel> instance_; 41 static std::mutex mutex_; 42 }; 43 } // namespace OHOS::Ace 44 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_SCROLL_BAR_SCROLL_BAR_MODEL_H 45