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 INPUT_EVENT_HANDLER_H 17 #define INPUT_EVENT_HANDLER_H 18 19 #include "event_dispatch_handler.h" 20 #include "event_filter_handler.h" 21 #include "event_interceptor_handler.h" 22 #include "event_monitor_handler.h" 23 #include "event_normalize_handler.h" 24 #include "key_command_handler.h" 25 #include "key_subscriber_handler.h" 26 #ifdef OHOS_BUILD_ENABLE_POINTER 27 #include "mouse_event_normalize.h" 28 #endif // OHOS_BUILD_ENABLE_POINTER 29 // #ifdef OHOS_BUILD_ENABLE_SWITCH 30 #include "switch_subscriber_handler.h" 31 // #endif // OHOS_BUILD_ENABLE_SWITCH 32 #include "event_pre_monitor_handler.h" 33 34 namespace OHOS { 35 namespace MMI { 36 using EventFun = std::function<int32_t(libinput_event *event)>; 37 using NotifyDeviceChange = std::function<void(int32_t, int32_t, char *)>; 38 class InputEventHandler final : public std::enable_shared_from_this<InputEventHandler> { 39 DECLARE_DELAYED_SINGLETON(InputEventHandler); 40 public: 41 DISALLOW_COPY_AND_MOVE(InputEventHandler); 42 void Init(UDSServer& udsServer); 43 void OnEvent(void *event, int64_t frameTime); 44 UDSServer *GetUDSServer() const; 45 int32_t SetMoveEventFilters(bool flag); 46 int32_t GetIntervalSinceLastInput(int64_t &timeInterval); 47 48 std::shared_ptr<EventNormalizeHandler> GetEventNormalizeHandler() const; 49 std::shared_ptr<EventInterceptorHandler> GetInterceptorHandler() const; 50 std::shared_ptr<KeySubscriberHandler> GetSubscriberHandler() const; 51 std::shared_ptr<SwitchSubscriberHandler> GetSwitchSubscriberHandler() const; 52 std::shared_ptr<KeyCommandHandler> GetKeyCommandHandler() const; 53 std::shared_ptr<EventMonitorHandler> GetMonitorHandler() const; 54 std::shared_ptr<EventFilterHandler> GetFilterHandler() const; 55 std::shared_ptr<EventDispatchHandler> GetEventDispatchHandler() const; 56 std::shared_ptr<EventPreMonitorHandler> GetEventPreMonitorHandler() const; 57 private: 58 int32_t BuildInputHandlerChain(); 59 60 // disable-while-typing 61 void UpdateDwtRecord(libinput_event *event); 62 void UpdateDwtTouchpadRecord(libinput_event *event); 63 void UpdateDwtKeyboardRecord(libinput_event *event); 64 bool IsStandaloneFunctionKey(uint32_t keycode); 65 bool IsModifierKey(uint32_t keycode); 66 void RefreshDwtActingState(); 67 bool IsTouchpadMistouch(libinput_event *event); 68 bool IsTouchpadButtonMistouch(libinput_event *event); 69 bool IsTouchpadTapMistouch(libinput_event *event); 70 bool IsTouchpadMotionMistouch(libinput_event *event); 71 bool IsTouchpadPointerMotionMistouch(libinput_event *event); 72 73 UDSServer *udsServer_ { nullptr }; 74 std::shared_ptr<EventNormalizeHandler> eventNormalizeHandler_ { nullptr }; 75 std::shared_ptr<EventFilterHandler> eventFilterHandler_ { nullptr }; 76 std::shared_ptr<EventInterceptorHandler> eventInterceptorHandler_ { nullptr }; 77 std::shared_ptr<KeySubscriberHandler> eventSubscriberHandler_ { nullptr }; 78 std::shared_ptr<SwitchSubscriberHandler> switchEventSubscriberHandler_ { nullptr }; 79 std::shared_ptr<KeyCommandHandler> eventKeyCommandHandler_ { nullptr }; 80 std::shared_ptr<EventMonitorHandler> eventMonitorHandler_ { nullptr }; 81 std::shared_ptr<EventDispatchHandler> eventDispatchHandler_ { nullptr }; 82 std::shared_ptr<EventPreMonitorHandler> eventPreMonitorHandler_ { nullptr }; 83 84 uint64_t idSeed_ { 0 }; 85 86 // assumption: 87 // 1. LIBINPUT_EVENT_TOUCHPAD_* and LIBINPUT_EVENT_POINTER_*_TOUCHPAD are in pairs 88 // 2. LIBINPUT_EVENT_POINTER_*_TOUCHPAD always comes after LIBINPUT_EVENT_TOUCHPAD_* 89 double touchpadEventDownAbsX_ { 0.0 }; 90 double touchpadEventDownAbsY_ { 0.0 }; 91 double touchpadEventAbsX_ { 0.0 }; 92 double touchpadEventAbsY_ { 0.0 }; 93 // disable-while-typing 94 bool isDwtEdgeAreaForTouchpadMotionActing_ { false }; 95 bool isDwtEdgeAreaForTouchpadButtonActing_ { false }; 96 bool isDwtEdgeAreaForTouchpadTapActing_ { false }; 97 bool isButtonMistouch_ { false }; 98 bool isTapMistouch_ { false }; 99 int modifierPressedCount_ { 0 }; 100 static constexpr uint32_t TOUCHPAD_KEY_CNT = 0x300; 101 std::vector<bool> isKeyPressedWithAnyModifiers_ = std::vector<bool>(TOUCHPAD_KEY_CNT, false); // keycode as index 102 103 int64_t lastEventBeginTime_ { 0 }; 104 105 static constexpr double TOUCHPAD_EDGE_WIDTH = 15.0; 106 static constexpr double TOUCHPAD_EDGE_WIDTH_RELEASE = 20.0; 107 static constexpr double TOUCHPAD_EDGE_WIDTH_FOR_BUTTON = 8.0; 108 static constexpr double TOUCHPAD_EDGE_WIDTH_FOR_TAP = 25.0; 109 }; 110 #define InputHandler ::OHOS::DelayedSingleton<InputEventHandler>::GetInstance() 111 } // namespace MMI 112 } // namespace OHOS 113 #endif // INPUT_EVENT_HANDLER_H