1 /* 2 * Copyright (c) 2021-2022 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_PARALLEL_RECOGNIZER_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_GESTURES_RECOGNIZERS_PARALLEL_RECOGNIZER_H 18 19 #include <functional> 20 21 #include "base/memory/referenced.h" 22 #include "core/components_ng/gestures/gesture_info.h" 23 #include "core/components_ng/gestures/recognizers/recognizer_group.h" 24 25 namespace OHOS::Ace::NG { 26 27 // ParallelRecognizer identifies events in parallel recognizers. 28 // For long press and double click, see: LongPressRecognizer and DoubleClickRecognizer. 29 class ACE_EXPORT ParallelRecognizer : public RecognizerGroup { 30 DECLARE_ACE_TYPE(ParallelRecognizer, RecognizerGroup); 31 32 public: ParallelRecognizer(const std::vector<RefPtr<NGGestureRecognizer>> & recognizers)33 explicit ParallelRecognizer(const std::vector<RefPtr<NGGestureRecognizer>>& recognizers) 34 : RecognizerGroup(recognizers) 35 {} 36 ParallelRecognizer(std::list<RefPtr<NGGestureRecognizer>> && recognizers)37 explicit ParallelRecognizer(std::list<RefPtr<NGGestureRecognizer>>&& recognizers) 38 : RecognizerGroup(std::move(recognizers)) 39 {} 40 41 ~ParallelRecognizer() override = default; 42 43 void OnAccepted() override; 44 void OnRejected() override; 45 void OnPending() override; 46 void OnBlocked() override; 47 48 bool HandleEvent(const TouchEvent& point) override; 49 bool HandleEvent(const AxisEvent& event) override; GetGestureMode()50 GestureMode GetGestureMode() const override 51 { 52 return GestureMode::Parallel; 53 } 54 55 void CleanRecognizerState() override; 56 void ForceCleanRecognizer() override; 57 58 void CleanRecognizerStateVoluntarily() 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 OnResetStatus()70 void OnResetStatus() override 71 { 72 RecognizerGroup::OnResetStatus(); 73 currentBatchRecognizer_.Reset(); 74 succeedBlockRecognizers_.clear(); 75 } 76 AddSucceedBlockRecognizer(const RefPtr<NGGestureRecognizer> & recognizer)77 void AddSucceedBlockRecognizer(const RefPtr<NGGestureRecognizer>& recognizer) 78 { 79 if (std::find(succeedBlockRecognizers_.begin(), succeedBlockRecognizers_.end(), 80 recognizer) == succeedBlockRecognizers_.end()) { 81 succeedBlockRecognizers_.push_back(recognizer); 82 } 83 } 84 85 RefPtr<NGGestureRecognizer> currentBatchRecognizer_; 86 std::vector<RefPtr<NGGestureRecognizer>> succeedBlockRecognizers_; 87 }; 88 89 } // namespace OHOS::Ace::NG 90 91 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_GESTURES_RECOGNIZERS_PARALLEL_RECOGNIZER_H 92