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_GESTURES_RECOGNIZERS_SEQUENCED_RECOGNIZER_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_GESTURES_RECOGNIZERS_SEQUENCED_RECOGNIZER_H 18 19 #include <functional> 20 21 #include "base/thread/cancelable_callback.h" 22 #include "core/components_ng/gestures/recognizers/recognizer_group.h" 23 24 namespace OHOS::Ace::NG { 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 RecognizerGroup { 29 DECLARE_ACE_TYPE(SequencedRecognizer, RecognizerGroup); 30 31 public: SequencedRecognizer(const std::vector<RefPtr<NGGestureRecognizer>> & recognizers)32 explicit SequencedRecognizer(const std::vector<RefPtr<NGGestureRecognizer>>& recognizers) 33 : RecognizerGroup(recognizers) 34 {} 35 ~SequencedRecognizer() override = default; 36 37 void OnAccepted() override; 38 void OnRejected() override; 39 void OnPending() override; 40 void OnBlocked() override; 41 42 bool HandleEvent(const TouchEvent& point) override; 43 bool HandleEvent(const AxisEvent& point) override; GetGestureMode()44 GestureMode GetGestureMode() const override 45 { 46 return GestureMode::Sequence; 47 } 48 49 void CleanRecognizerState() override; 50 void ForceCleanRecognizer() override; SetIsEventHandoverNeeded(bool isEventHandoverNeeded)51 void SetIsEventHandoverNeeded(bool isEventHandoverNeeded) 52 { 53 isEventHandoverNeeded_ = isEventHandoverNeeded; 54 } 55 56 RefereeState CheckStates(size_t touchId) override; 57 58 bool CheckGroupState() override; 59 60 private: HandleTouchDownEvent(const TouchEvent & event)61 void HandleTouchDownEvent(const TouchEvent& event) override {}; HandleTouchUpEvent(const TouchEvent & event)62 void HandleTouchUpEvent(const TouchEvent& event) override {}; HandleTouchMoveEvent(const TouchEvent & event)63 void HandleTouchMoveEvent(const TouchEvent& event) override {}; HandleTouchCancelEvent(const TouchEvent & event)64 void HandleTouchCancelEvent(const TouchEvent& event) override {}; 65 66 void BatchAdjudicate(const RefPtr<NGGestureRecognizer>& recognizer, GestureDisposal disposal) override; 67 68 bool ReconcileFrom(const RefPtr<NGGestureRecognizer>& recognizer) override; 69 void OnResetStatus() override; 70 void DeadlineTimer(); 71 void HandleOverdueDeadline(); 72 void UpdateCurrentIndex(); 73 void SendTouchEventToNextRecognizer(const RefPtr<NGGestureRecognizer> curRecognizer, int64_t beforeDuration = 0); 74 bool CheckBetweenTwoLongPressRecognizer(int32_t currentIndex = 0); 75 bool NeedStartDeadlineTimerInner(const RefPtr<NGGestureRecognizer> curRecognizer, SourceTool sourceTool); 76 RefPtr<NGGestureRecognizer> GetCurrentRecognizer(); 77 78 bool isEventHandoverNeeded_ = false; 79 int32_t currentIndex_ = 0; 80 AxisEvent lastAxisEvent_; 81 std::list<std::string> childTouchTestList_; 82 CancelableCallback<void()> deadlineTimer_; 83 }; 84 85 } // namespace OHOS::Ace::NG 86 87 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_GESTURES_RECOGNIZERS_SEQUENCED_RECOGNIZER_H 88