Jeff Brown | be1aa82 | 2011-07-27 16:04:54 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef _UI_INPUT_LISTENER_H |
| 18 | #define _UI_INPUT_LISTENER_H |
| 19 | |
| 20 | #include <ui/Input.h> |
| 21 | #include <utils/RefBase.h> |
| 22 | #include <utils/Vector.h> |
| 23 | |
| 24 | namespace android { |
| 25 | |
| 26 | class InputListenerInterface; |
| 27 | |
| 28 | |
| 29 | /* Superclass of all input event argument objects */ |
| 30 | struct NotifyArgs { |
| 31 | virtual ~NotifyArgs() { } |
| 32 | |
| 33 | virtual void notify(const sp<InputListenerInterface>& listener) const = 0; |
| 34 | }; |
| 35 | |
| 36 | |
| 37 | /* Describes a configuration change event. */ |
| 38 | struct NotifyConfigurationChangedArgs : public NotifyArgs { |
| 39 | nsecs_t eventTime; |
| 40 | |
| 41 | inline NotifyConfigurationChangedArgs() { } |
| 42 | |
| 43 | NotifyConfigurationChangedArgs(nsecs_t eventTime); |
| 44 | |
| 45 | NotifyConfigurationChangedArgs(const NotifyConfigurationChangedArgs& other); |
| 46 | |
| 47 | virtual ~NotifyConfigurationChangedArgs() { } |
| 48 | |
| 49 | virtual void notify(const sp<InputListenerInterface>& listener) const; |
| 50 | }; |
| 51 | |
| 52 | |
| 53 | /* Describes a key event. */ |
| 54 | struct NotifyKeyArgs : public NotifyArgs { |
| 55 | nsecs_t eventTime; |
| 56 | int32_t deviceId; |
| 57 | uint32_t source; |
| 58 | uint32_t policyFlags; |
| 59 | int32_t action; |
| 60 | int32_t flags; |
| 61 | int32_t keyCode; |
| 62 | int32_t scanCode; |
| 63 | int32_t metaState; |
| 64 | nsecs_t downTime; |
| 65 | |
| 66 | inline NotifyKeyArgs() { } |
| 67 | |
| 68 | NotifyKeyArgs(nsecs_t eventTime, int32_t deviceId, uint32_t source, uint32_t policyFlags, |
| 69 | int32_t action, int32_t flags, int32_t keyCode, int32_t scanCode, |
| 70 | int32_t metaState, nsecs_t downTime); |
| 71 | |
| 72 | NotifyKeyArgs(const NotifyKeyArgs& other); |
| 73 | |
| 74 | virtual ~NotifyKeyArgs() { } |
| 75 | |
| 76 | virtual void notify(const sp<InputListenerInterface>& listener) const; |
| 77 | }; |
| 78 | |
| 79 | |
| 80 | /* Describes a motion event. */ |
| 81 | struct NotifyMotionArgs : public NotifyArgs { |
| 82 | nsecs_t eventTime; |
| 83 | int32_t deviceId; |
| 84 | uint32_t source; |
| 85 | uint32_t policyFlags; |
| 86 | int32_t action; |
| 87 | int32_t flags; |
| 88 | int32_t metaState; |
| 89 | int32_t buttonState; |
| 90 | int32_t edgeFlags; |
| 91 | uint32_t pointerCount; |
| 92 | PointerProperties pointerProperties[MAX_POINTERS]; |
| 93 | PointerCoords pointerCoords[MAX_POINTERS]; |
| 94 | float xPrecision; |
| 95 | float yPrecision; |
| 96 | nsecs_t downTime; |
| 97 | |
| 98 | inline NotifyMotionArgs() { } |
| 99 | |
| 100 | NotifyMotionArgs(nsecs_t eventTime, int32_t deviceId, uint32_t source, uint32_t policyFlags, |
| 101 | int32_t action, int32_t flags, int32_t metaState, int32_t buttonState, |
| 102 | int32_t edgeFlags, uint32_t pointerCount, |
| 103 | const PointerProperties* pointerProperties, const PointerCoords* pointerCoords, |
| 104 | float xPrecision, float yPrecision, nsecs_t downTime); |
| 105 | |
| 106 | NotifyMotionArgs(const NotifyMotionArgs& other); |
| 107 | |
| 108 | virtual ~NotifyMotionArgs() { } |
| 109 | |
| 110 | virtual void notify(const sp<InputListenerInterface>& listener) const; |
| 111 | }; |
| 112 | |
| 113 | |
| 114 | /* Describes a switch event. */ |
| 115 | struct NotifySwitchArgs : public NotifyArgs { |
| 116 | nsecs_t eventTime; |
| 117 | uint32_t policyFlags; |
| 118 | int32_t switchCode; |
| 119 | int32_t switchValue; |
| 120 | |
| 121 | inline NotifySwitchArgs() { } |
| 122 | |
| 123 | NotifySwitchArgs(nsecs_t eventTime, uint32_t policyFlags, |
| 124 | int32_t switchCode, int32_t switchValue); |
| 125 | |
| 126 | NotifySwitchArgs(const NotifySwitchArgs& other); |
| 127 | |
| 128 | virtual ~NotifySwitchArgs() { } |
| 129 | |
| 130 | virtual void notify(const sp<InputListenerInterface>& listener) const; |
| 131 | }; |
| 132 | |
| 133 | |
Jeff Brown | 65fd251 | 2011-08-18 11:20:58 -0700 | [diff] [blame] | 134 | /* Describes a device reset event, such as when a device is added, |
| 135 | * reconfigured, or removed. */ |
| 136 | struct NotifyDeviceResetArgs : public NotifyArgs { |
| 137 | nsecs_t eventTime; |
| 138 | int32_t deviceId; |
| 139 | |
| 140 | inline NotifyDeviceResetArgs() { } |
| 141 | |
| 142 | NotifyDeviceResetArgs(nsecs_t eventTime, int32_t deviceId); |
| 143 | |
| 144 | NotifyDeviceResetArgs(const NotifyDeviceResetArgs& other); |
| 145 | |
| 146 | virtual ~NotifyDeviceResetArgs() { } |
| 147 | |
| 148 | virtual void notify(const sp<InputListenerInterface>& listener) const; |
| 149 | }; |
| 150 | |
| 151 | |
Jeff Brown | be1aa82 | 2011-07-27 16:04:54 -0700 | [diff] [blame] | 152 | /* |
| 153 | * The interface used by the InputReader to notify the InputListener about input events. |
| 154 | */ |
| 155 | class InputListenerInterface : public virtual RefBase { |
| 156 | protected: |
| 157 | InputListenerInterface() { } |
| 158 | virtual ~InputListenerInterface() { } |
| 159 | |
| 160 | public: |
| 161 | virtual void notifyConfigurationChanged(const NotifyConfigurationChangedArgs* args) = 0; |
| 162 | virtual void notifyKey(const NotifyKeyArgs* args) = 0; |
| 163 | virtual void notifyMotion(const NotifyMotionArgs* args) = 0; |
| 164 | virtual void notifySwitch(const NotifySwitchArgs* args) = 0; |
Jeff Brown | 65fd251 | 2011-08-18 11:20:58 -0700 | [diff] [blame] | 165 | virtual void notifyDeviceReset(const NotifyDeviceResetArgs* args) = 0; |
Jeff Brown | be1aa82 | 2011-07-27 16:04:54 -0700 | [diff] [blame] | 166 | }; |
| 167 | |
| 168 | |
| 169 | /* |
| 170 | * An implementation of the listener interface that queues up and defers dispatch |
| 171 | * of decoded events until flushed. |
| 172 | */ |
| 173 | class QueuedInputListener : public InputListenerInterface { |
| 174 | protected: |
| 175 | virtual ~QueuedInputListener(); |
| 176 | |
| 177 | public: |
| 178 | QueuedInputListener(const sp<InputListenerInterface>& innerListener); |
| 179 | |
| 180 | virtual void notifyConfigurationChanged(const NotifyConfigurationChangedArgs* args); |
| 181 | virtual void notifyKey(const NotifyKeyArgs* args); |
| 182 | virtual void notifyMotion(const NotifyMotionArgs* args); |
| 183 | virtual void notifySwitch(const NotifySwitchArgs* args); |
Jeff Brown | 65fd251 | 2011-08-18 11:20:58 -0700 | [diff] [blame] | 184 | virtual void notifyDeviceReset(const NotifyDeviceResetArgs* args); |
Jeff Brown | be1aa82 | 2011-07-27 16:04:54 -0700 | [diff] [blame] | 185 | |
| 186 | void flush(); |
| 187 | |
| 188 | private: |
| 189 | sp<InputListenerInterface> mInnerListener; |
| 190 | Vector<NotifyArgs*> mArgsQueue; |
| 191 | }; |
| 192 | |
| 193 | } // namespace android |
| 194 | |
| 195 | #endif // _UI_INPUT_LISTENER_H |