2 * Copyright (C) 2011 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 #ifndef _UI_INPUT_LISTENER_H
18 #define _UI_INPUT_LISTENER_H
20 #include <androidfw/Input.h>
21 #include <utils/RefBase.h>
22 #include <utils/Vector.h>
26 class InputListenerInterface;
29 /* Superclass of all input event argument objects */
31 virtual ~NotifyArgs() { }
33 virtual void notify(const sp<InputListenerInterface>& listener) const = 0;
37 /* Describes a configuration change event. */
38 struct NotifyConfigurationChangedArgs : public NotifyArgs {
41 inline NotifyConfigurationChangedArgs() { }
43 NotifyConfigurationChangedArgs(nsecs_t eventTime);
45 NotifyConfigurationChangedArgs(const NotifyConfigurationChangedArgs& other);
47 virtual ~NotifyConfigurationChangedArgs() { }
49 virtual void notify(const sp<InputListenerInterface>& listener) const;
53 /* Describes a key event. */
54 struct NotifyKeyArgs : public NotifyArgs {
66 inline NotifyKeyArgs() { }
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);
72 NotifyKeyArgs(const NotifyKeyArgs& other);
74 virtual ~NotifyKeyArgs() { }
76 virtual void notify(const sp<InputListenerInterface>& listener) const;
80 /* Describes a motion event. */
81 struct NotifyMotionArgs : public NotifyArgs {
92 uint32_t pointerCount;
93 PointerProperties pointerProperties[MAX_POINTERS];
94 PointerCoords pointerCoords[MAX_POINTERS];
99 inline NotifyMotionArgs() { }
101 NotifyMotionArgs(nsecs_t eventTime, int32_t deviceId, uint32_t source, uint32_t policyFlags,
102 int32_t action, int32_t flags, int32_t metaState, int32_t buttonState,
103 int32_t edgeFlags, int32_t displayId, uint32_t pointerCount,
104 const PointerProperties* pointerProperties, const PointerCoords* pointerCoords,
105 float xPrecision, float yPrecision, nsecs_t downTime);
107 NotifyMotionArgs(const NotifyMotionArgs& other);
109 virtual ~NotifyMotionArgs() { }
111 virtual void notify(const sp<InputListenerInterface>& listener) const;
115 /* Describes a switch event. */
116 struct NotifySwitchArgs : public NotifyArgs {
118 uint32_t policyFlags;
119 uint32_t switchValues;
122 inline NotifySwitchArgs() { }
124 NotifySwitchArgs(nsecs_t eventTime, uint32_t policyFlags,
125 uint32_t switchValues, uint32_t switchMask);
127 NotifySwitchArgs(const NotifySwitchArgs& other);
129 virtual ~NotifySwitchArgs() { }
131 virtual void notify(const sp<InputListenerInterface>& listener) const;
135 /* Describes a device reset event, such as when a device is added,
136 * reconfigured, or removed. */
137 struct NotifyDeviceResetArgs : public NotifyArgs {
141 inline NotifyDeviceResetArgs() { }
143 NotifyDeviceResetArgs(nsecs_t eventTime, int32_t deviceId);
145 NotifyDeviceResetArgs(const NotifyDeviceResetArgs& other);
147 virtual ~NotifyDeviceResetArgs() { }
149 virtual void notify(const sp<InputListenerInterface>& listener) const;
154 * The interface used by the InputReader to notify the InputListener about input events.
156 class InputListenerInterface : public virtual RefBase {
158 InputListenerInterface() { }
159 virtual ~InputListenerInterface() { }
162 virtual void notifyConfigurationChanged(const NotifyConfigurationChangedArgs* args) = 0;
163 virtual void notifyKey(const NotifyKeyArgs* args) = 0;
164 virtual void notifyMotion(const NotifyMotionArgs* args) = 0;
165 virtual void notifySwitch(const NotifySwitchArgs* args) = 0;
166 virtual void notifyDeviceReset(const NotifyDeviceResetArgs* args) = 0;
171 * An implementation of the listener interface that queues up and defers dispatch
172 * of decoded events until flushed.
174 class QueuedInputListener : public InputListenerInterface {
176 virtual ~QueuedInputListener();
179 QueuedInputListener(const sp<InputListenerInterface>& innerListener);
181 virtual void notifyConfigurationChanged(const NotifyConfigurationChangedArgs* args);
182 virtual void notifyKey(const NotifyKeyArgs* args);
183 virtual void notifyMotion(const NotifyMotionArgs* args);
184 virtual void notifySwitch(const NotifySwitchArgs* args);
185 virtual void notifyDeviceReset(const NotifyDeviceResetArgs* args);
190 sp<InputListenerInterface> mInnerListener;
191 Vector<NotifyArgs*> mArgsQueue;
194 } // namespace android
196 #endif // _UI_INPUT_LISTENER_H