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/*
* 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 <nativehelper/JNIHelp.h>
#include <android_runtime/AndroidRuntime.h>
#include <android_runtime/Log.h>
#include <utils/Log.h>
#include <input/Input.h>
#include <nativehelper/ScopedUtfChars.h>
#include "android_view_KeyEvent.h"
#include "core_jni_helpers.h"
namespace android {
// ----------------------------------------------------------------------------
static struct {
jclass clazz;
jmethodID obtain;
jmethodID recycle;
jfieldID mDeviceId;
jfieldID mSource;
jfieldID mDisplayId;
jfieldID mMetaState;
jfieldID mAction;
jfieldID mKeyCode;
jfieldID mScanCode;
jfieldID mRepeatCount;
jfieldID mFlags;
jfieldID mDownTime;
jfieldID mEventTime;
jfieldID mCharacters;
} gKeyEventClassInfo;
// ----------------------------------------------------------------------------
jobject android_view_KeyEvent_fromNative(JNIEnv* env, const KeyEvent* event) {
jobject eventObj = env->CallStaticObjectMethod(gKeyEventClassInfo.clazz,
gKeyEventClassInfo.obtain,
nanoseconds_to_milliseconds(event->getDownTime()),
nanoseconds_to_milliseconds(event->getEventTime()),
event->getAction(),
event->getKeyCode(),
event->getRepeatCount(),
event->getMetaState(),
event->getDeviceId(),
event->getScanCode(),
event->getFlags(),
event->getSource(),
event->getDisplayId(),
NULL);
if (env->ExceptionCheck()) {
ALOGE("An exception occurred while obtaining a key event.");
LOGE_EX(env);
env->ExceptionClear();
return NULL;
}
return eventObj;
}
status_t android_view_KeyEvent_toNative(JNIEnv* env, jobject eventObj,
KeyEvent* event) {
jint deviceId = env->GetIntField(eventObj, gKeyEventClassInfo.mDeviceId);
jint source = env->GetIntField(eventObj, gKeyEventClassInfo.mSource);
jint displayId = env->GetIntField(eventObj, gKeyEventClassInfo.mDisplayId);
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 flags = env->GetIntField(eventObj, gKeyEventClassInfo.mFlags);
jlong downTime = env->GetLongField(eventObj, gKeyEventClassInfo.mDownTime);
jlong eventTime = env->GetLongField(eventObj, gKeyEventClassInfo.mEventTime);
event->initialize(deviceId, source, displayId, action, flags, keyCode, scanCode, metaState,
repeatCount,
milliseconds_to_nanoseconds(downTime),
milliseconds_to_nanoseconds(eventTime));
return OK;
}
status_t android_view_KeyEvent_recycle(JNIEnv* env, jobject eventObj) {
env->CallVoidMethod(eventObj, gKeyEventClassInfo.recycle);
if (env->ExceptionCheck()) {
ALOGW("An exception occurred while recycling a key event.");
LOGW_EX(env);
env->ExceptionClear();
return UNKNOWN_ERROR;
}
return OK;
}
static jstring android_view_KeyEvent_nativeKeyCodeToString(JNIEnv* env, jobject clazz,
jint keyCode) {
return env->NewStringUTF(KeyEvent::getLabel(keyCode));
}
static jint android_view_KeyEvent_nativeKeyCodeFromString(JNIEnv* env, jobject clazz,
jstring label) {
ScopedUtfChars keyLabel(env, label);
return KeyEvent::getKeyCodeFromLabel(keyLabel.c_str());
}
// ----------------------------------------------------------------------------
static const JNINativeMethod g_methods[] = {
{ "nativeKeyCodeToString", "(I)Ljava/lang/String;",
(void*)android_view_KeyEvent_nativeKeyCodeToString},
{ "nativeKeyCodeFromString", "(Ljava/lang/String;)I",
(void*)android_view_KeyEvent_nativeKeyCodeFromString},
};
int register_android_view_KeyEvent(JNIEnv* env) {
jclass clazz = FindClassOrDie(env, "android/view/KeyEvent");
gKeyEventClassInfo.clazz = MakeGlobalRefOrDie(env, clazz);
gKeyEventClassInfo.obtain = GetStaticMethodIDOrDie(env, gKeyEventClassInfo.clazz,
"obtain", "(JJIIIIIIIIILjava/lang/String;)Landroid/view/KeyEvent;");
gKeyEventClassInfo.recycle = GetMethodIDOrDie(env, gKeyEventClassInfo.clazz,
"recycle", "()V");
gKeyEventClassInfo.mDeviceId = GetFieldIDOrDie(env, gKeyEventClassInfo.clazz, "mDeviceId", "I");
gKeyEventClassInfo.mSource = GetFieldIDOrDie(env, gKeyEventClassInfo.clazz, "mSource", "I");
gKeyEventClassInfo.mDisplayId = GetFieldIDOrDie(env, gKeyEventClassInfo.clazz, "mDisplayId",
"I");
gKeyEventClassInfo.mMetaState = GetFieldIDOrDie(env, gKeyEventClassInfo.clazz, "mMetaState",
"I");
gKeyEventClassInfo.mAction = GetFieldIDOrDie(env, gKeyEventClassInfo.clazz, "mAction", "I");
gKeyEventClassInfo.mKeyCode = GetFieldIDOrDie(env, gKeyEventClassInfo.clazz, "mKeyCode", "I");
gKeyEventClassInfo.mScanCode = GetFieldIDOrDie(env, gKeyEventClassInfo.clazz, "mScanCode", "I");
gKeyEventClassInfo.mRepeatCount = GetFieldIDOrDie(env, gKeyEventClassInfo.clazz, "mRepeatCount",
"I");
gKeyEventClassInfo.mFlags = GetFieldIDOrDie(env, gKeyEventClassInfo.clazz, "mFlags", "I");
gKeyEventClassInfo.mDownTime = GetFieldIDOrDie(env, gKeyEventClassInfo.clazz, "mDownTime", "J");
gKeyEventClassInfo.mEventTime = GetFieldIDOrDie(env, gKeyEventClassInfo.clazz, "mEventTime",
"J");
gKeyEventClassInfo.mCharacters = GetFieldIDOrDie(env, gKeyEventClassInfo.clazz, "mCharacters",
"Ljava/lang/String;");
return RegisterMethodsOrDie(env, "android/view/KeyEvent", g_methods, NELEM(g_methods));
}
} // namespace android
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