1 /* 2 * Copyright (c) 2021 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_GESTURES_SEQUENCED_RECOGNIZER_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_GESTURES_SEQUENCED_RECOGNIZER_H 18 19 #include <functional> 20 21 #include "base/thread/cancelable_callback.h" 22 #include "core/gestures/multi_fingers_recognizer.h" 23 24 namespace OHOS::Ace { 25 26 // SequencedRecognizer identifies only single click events. 27 // For long press and double click, see: LongPressRecognizer and DoubleClickRecognizer. 28 class ACE_EXPORT SequencedRecognizer : public MultiFingersRecognizer { 29 DECLARE_ACE_TYPE(SequencedRecognizer, MultiFingersRecognizer); 30 31 public: SequencedRecognizer(const WeakPtr<PipelineContext> & context,const std::vector<RefPtr<GestureRecognizer>> & recognizers)32 SequencedRecognizer( 33 const WeakPtr<PipelineContext>& context, const std::vector<RefPtr<GestureRecognizer>>& recognizers) 34 { 35 for (auto& recognizer : recognizers) { 36 recognizer->SetGestureGroup(AceType::WeakClaim(this)); 37 } 38 recognizers_ = recognizers; 39 context_ = context; 40 } 41 ~SequencedRecognizer() override = default; 42 void OnAccepted() override; 43 void OnRejected() override; 44 bool HandleEvent(const TouchEvent& point) override; 45 void OnPending(size_t touchId) override; 46 47 private: HandleTouchDownEvent(const TouchEvent & event)48 void HandleTouchDownEvent(const TouchEvent& event) override {}; HandleTouchUpEvent(const TouchEvent & event)49 void HandleTouchUpEvent(const TouchEvent& event) override {}; HandleTouchMoveEvent(const TouchEvent & event)50 void HandleTouchMoveEvent(const TouchEvent& event) override {}; HandleTouchCancelEvent(const TouchEvent & event)51 void HandleTouchCancelEvent(const TouchEvent& event) override {}; 52 void BatchAdjudicate(const std::set<size_t>& touchIds, const RefPtr<GestureRecognizer>& recognizer, 53 GestureDisposal disposal) override; 54 void AddToReferee(size_t touchId, const RefPtr<GestureRecognizer>& recognizer) override; 55 bool ReconcileFrom(const RefPtr<GestureRecognizer>& recognizer) override; 56 void Reset(); 57 void DeadlineTimer(); 58 void HandleOverdueDeadline(); 59 60 std::vector<RefPtr<GestureRecognizer>> recognizers_; 61 std::map<int32_t, TouchEvent> curPoints_; 62 size_t activeIndex = 0; 63 CancelableCallback<void()> deadlineTimer_; 64 WeakPtr<PipelineContext> context_; 65 }; 66 67 } // namespace OHOS::Ace 68 69 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_GESTURES_SEQUENCED_RECOGNIZER_H 70