1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "KeyEvent-JNI"
#include "JNIHelp.h"
#include <android_runtime/AndroidRuntime.h>
#include <utils/Log.h>
#include <ui/Input.h>
#include "android_view_KeyEvent.h"
namespace android {
// ----------------------------------------------------------------------------
static struct {
jclass clazz;
jmethodID ctor;
jfieldID mMetaState;
jfieldID mAction;
jfieldID mKeyCode;
jfieldID mScanCode;
jfieldID mRepeatCount;
jfieldID mDeviceId;
jfieldID mFlags;
jfieldID mDownTime;
jfieldID mEventTime;
jfieldID mCharacters;
} gKeyEventClassInfo;
// ----------------------------------------------------------------------------
jobject android_view_KeyEvent_fromNative(JNIEnv* env, const KeyEvent* event) {
return env->NewObject(gKeyEventClassInfo.clazz, gKeyEventClassInfo.ctor,
nanoseconds_to_milliseconds(event->getDownTime()),
nanoseconds_to_milliseconds(event->getEventTime()),
event->getAction(),
event->getKeyCode(),
event->getRepeatCount(),
event->getMetaState(),
event->getDeviceId(),
event->getScanCode(),
event->getFlags());
}
void android_view_KeyEvent_toNative(JNIEnv* env, jobject eventObj, int32_t nature,
KeyEvent* event) {
jint metaState = env->GetIntField(eventObj, gKeyEventClassInfo.mMetaState);
jint action = env->GetIntField(eventObj, gKeyEventClassInfo.mAction);
jint keyCode = env->GetIntField(eventObj, gKeyEventClassInfo.mKeyCode);
jint scanCode = env->GetIntField(eventObj, gKeyEventClassInfo.mScanCode);
jint repeatCount = env->GetIntField(eventObj, gKeyEventClassInfo.mRepeatCount);
jint deviceId = env->GetIntField(eventObj, gKeyEventClassInfo.mDeviceId);
jint flags = env->GetIntField(eventObj, gKeyEventClassInfo.mFlags);
jlong downTime = env->GetLongField(eventObj, gKeyEventClassInfo.mDownTime);
jlong eventTime = env->GetLongField(eventObj, gKeyEventClassInfo.mEventTime);
event->initialize(deviceId, nature, action, flags, keyCode, scanCode, metaState, repeatCount,
milliseconds_to_nanoseconds(downTime),
milliseconds_to_nanoseconds(eventTime));
}
static jboolean native_isSystemKey(JNIEnv* env, jobject clazz, jint keyCode) {
return KeyEvent::isSystemKey(keyCode);
}
static jboolean native_hasDefaultAction(JNIEnv* env, jobject clazz, jint keyCode) {
return KeyEvent::hasDefaultAction(keyCode);
}
// ----------------------------------------------------------------------------
static const JNINativeMethod g_methods[] = {
{ "native_isSystemKey", "(I)Z", (void*)native_isSystemKey },
{ "native_hasDefaultAction", "(I)Z", (void*)native_hasDefaultAction },
};
static const char* const kKeyEventPathName = "android/view/KeyEvent";
#define FIND_CLASS(var, className) \
var = env->FindClass(className); \
LOG_FATAL_IF(! var, "Unable to find class " className); \
var = jclass(env->NewGlobalRef(var));
#define GET_METHOD_ID(var, clazz, methodName, fieldDescriptor) \
var = env->GetMethodID(clazz, methodName, fieldDescriptor); \
LOG_FATAL_IF(! var, "Unable to find method" methodName);
#define GET_FIELD_ID(var, clazz, fieldName, fieldDescriptor) \
var = env->GetFieldID(clazz, fieldName, fieldDescriptor); \
LOG_FATAL_IF(! var, "Unable to find field " fieldName);
int register_android_view_KeyEvent(JNIEnv* env) {
FIND_CLASS(gKeyEventClassInfo.clazz, kKeyEventPathName);
GET_METHOD_ID(gKeyEventClassInfo.ctor, gKeyEventClassInfo.clazz,
"<init>", "(JJIIIIIII)V");
GET_FIELD_ID(gKeyEventClassInfo.mMetaState, gKeyEventClassInfo.clazz,
"mMetaState", "I");
GET_FIELD_ID(gKeyEventClassInfo.mAction, gKeyEventClassInfo.clazz,
"mAction", "I");
GET_FIELD_ID(gKeyEventClassInfo.mKeyCode, gKeyEventClassInfo.clazz,
"mKeyCode", "I");
GET_FIELD_ID(gKeyEventClassInfo.mScanCode, gKeyEventClassInfo.clazz,
"mScanCode", "I");
GET_FIELD_ID(gKeyEventClassInfo.mRepeatCount, gKeyEventClassInfo.clazz,
"mRepeatCount", "I");
GET_FIELD_ID(gKeyEventClassInfo.mDeviceId, gKeyEventClassInfo.clazz,
"mDeviceId", "I");
GET_FIELD_ID(gKeyEventClassInfo.mFlags, gKeyEventClassInfo.clazz,
"mFlags", "I");
GET_FIELD_ID(gKeyEventClassInfo.mDownTime, gKeyEventClassInfo.clazz,
"mDownTime", "J");
GET_FIELD_ID(gKeyEventClassInfo.mEventTime, gKeyEventClassInfo.clazz,
"mEventTime", "J");
GET_FIELD_ID(gKeyEventClassInfo.mCharacters, gKeyEventClassInfo.clazz,
"mCharacters", "Ljava/lang/String;");
return AndroidRuntime::registerNativeMethods(
env, kKeyEventPathName,
g_methods, NELEM(g_methods));
}
} // namespace android
|
