Input.cpp revision 3c80a4a044865bdf1289c7896baffa1c082d835c 
1//
2// Copyright 2010 The Android Open Source Project
3//
4// Provides a pipe-based transport for native events in the NDK.
5//
6#define LOG_TAG "Input"
7
8//#define LOG_NDEBUG 0
9
10#include <ui/Input.h>
11
12namespace android {
13
14// class InputEvent
15
16void InputEvent::initialize(int32_t deviceId, int32_t nature) {
17    mDeviceId = deviceId;
18    mNature = nature;
19}
20
21// class KeyEvent
22
23bool KeyEvent::hasDefaultAction(int32_t keyCode) {
24    switch (keyCode) {
25        case KEYCODE_HOME:
26        case KEYCODE_BACK:
27        case KEYCODE_CALL:
28        case KEYCODE_ENDCALL:
29        case KEYCODE_VOLUME_UP:
30        case KEYCODE_VOLUME_DOWN:
31        case KEYCODE_POWER:
32        case KEYCODE_CAMERA:
33        case KEYCODE_HEADSETHOOK:
34        case KEYCODE_MENU:
35        case KEYCODE_NOTIFICATION:
36        case KEYCODE_FOCUS:
37        case KEYCODE_SEARCH:
38        case KEYCODE_MEDIA_PLAY_PAUSE:
39        case KEYCODE_MEDIA_STOP:
40        case KEYCODE_MEDIA_NEXT:
41        case KEYCODE_MEDIA_PREVIOUS:
42        case KEYCODE_MEDIA_REWIND:
43        case KEYCODE_MEDIA_FAST_FORWARD:
44        case KEYCODE_MUTE:
45            return true;
46    }
47
48    return false;
49}
50
51bool KeyEvent::hasDefaultAction() const {
52    return hasDefaultAction(getKeyCode());
53}
54
55bool KeyEvent::isSystemKey(int32_t keyCode) {
56    switch (keyCode) {
57        case KEYCODE_MENU:
58        case KEYCODE_SOFT_RIGHT:
59        case KEYCODE_HOME:
60        case KEYCODE_BACK:
61        case KEYCODE_CALL:
62        case KEYCODE_ENDCALL:
63        case KEYCODE_VOLUME_UP:
64        case KEYCODE_VOLUME_DOWN:
65        case KEYCODE_MUTE:
66        case KEYCODE_POWER:
67        case KEYCODE_HEADSETHOOK:
68        case KEYCODE_MEDIA_PLAY_PAUSE:
69        case KEYCODE_MEDIA_STOP:
70        case KEYCODE_MEDIA_NEXT:
71        case KEYCODE_MEDIA_PREVIOUS:
72        case KEYCODE_MEDIA_REWIND:
73        case KEYCODE_MEDIA_FAST_FORWARD:
74        case KEYCODE_CAMERA:
75        case KEYCODE_FOCUS:
76        case KEYCODE_SEARCH:
77            return true;
78    }
79
80    return false;
81}
82
83bool KeyEvent::isSystemKey() const {
84    return isSystemKey(getKeyCode());
85}
86
87void KeyEvent::initialize(
88        int32_t deviceId,
89        int32_t nature,
90        int32_t action,
91        int32_t flags,
92        int32_t keyCode,
93        int32_t scanCode,
94        int32_t metaState,
95        int32_t repeatCount,
96        nsecs_t downTime,
97        nsecs_t eventTime) {
98    InputEvent::initialize(deviceId, nature);
99    mAction = action;
100    mFlags = flags;
101    mKeyCode = keyCode;
102    mScanCode = scanCode;
103    mMetaState = metaState;
104    mRepeatCount = repeatCount;
105    mDownTime = downTime;
106    mEventTime = eventTime;
107}
108
109// class MotionEvent
110
111void MotionEvent::initialize(
112        int32_t deviceId,
113        int32_t nature,
114        int32_t action,
115        int32_t edgeFlags,
116        int32_t metaState,
117        float xOffset,
118        float yOffset,
119        float xPrecision,
120        float yPrecision,
121        nsecs_t downTime,
122        nsecs_t eventTime,
123        size_t pointerCount,
124        const int32_t* pointerIds,
125        const PointerCoords* pointerCoords) {
126    InputEvent::initialize(deviceId, nature);
127    mAction = action;
128    mEdgeFlags = edgeFlags;
129    mMetaState = metaState;
130    mXOffset = xOffset;
131    mYOffset = yOffset;
132    mXPrecision = xPrecision;
133    mYPrecision = yPrecision;
134    mDownTime = downTime;
135    mPointerIds.clear();
136    mPointerIds.appendArray(pointerIds, pointerCount);
137    mSampleEventTimes.clear();
138    mSamplePointerCoords.clear();
139    addSample(eventTime, pointerCoords);
140}
141
142void MotionEvent::addSample(
143        int64_t eventTime,
144        const PointerCoords* pointerCoords) {
145    mSampleEventTimes.push(eventTime);
146    mSamplePointerCoords.appendArray(pointerCoords, getPointerCount());
147}
148
149void MotionEvent::offsetLocation(float xOffset, float yOffset) {
150    mXOffset += xOffset;
151    mYOffset += yOffset;
152}
153
154} // namespace android
155