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_COMPONENTS_NG_PATTERNS_SCROLLABLE_SCROLLER_OBSERVER_MANAGER_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_SCROLLABLE_SCROLLER_OBSERVER_MANAGER_H 18 19 #include <cstdint> 20 #include <unordered_map> 21 22 #include "base/memory/referenced.h" 23 #include "core/components_ng/pattern/scrollable/scrollable_properties.h" 24 25 namespace OHOS::Ace { 26 class ScrollerObserverManager : public Referenced { 27 public: 28 ScrollerObserverManager() = default; 29 ~ScrollerObserverManager() = default; 30 31 void AddObserver(const ScrollerObserver& obs, int32_t id); 32 void RemoveObserver(int32_t id); 33 34 void HandleOnTouchEvent(TouchEventInfo& info); 35 void HandleOnReachEvent(bool end); 36 void HandleOnScrollStartEvent(); 37 void HandleOnScrollStopEvent(); 38 void HandleOnDidScrollEvent(Dimension dimension, ScrollState state, 39 ScrollSource source, bool isAtTop, bool isAtBottom); 40 41 private: 42 std::unordered_map<int32_t, ScrollerObserver> observers_; 43 }; 44 } // namespace OHOS::Ace 45 46 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_SCROLLABLE_SCROLLER_OBSERVER_MANAGER_H 47