| /* |
| * 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 obtain; |
| jmethodID recycle; |
| |
| jfieldID mDeviceId; |
| jfieldID mSource; |
| 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(), |
| 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 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, 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 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 }, |
| }; |
| |
| #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_STATIC_METHOD_ID(var, clazz, methodName, fieldDescriptor) \ |
| var = env->GetStaticMethodID(clazz, methodName, fieldDescriptor); \ |
| LOG_FATAL_IF(! var, "Unable to find static method" methodName); |
| |
| #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, "android/view/KeyEvent"); |
| |
| GET_STATIC_METHOD_ID(gKeyEventClassInfo.obtain, gKeyEventClassInfo.clazz, |
| "obtain", "(JJIIIIIIIILjava/lang/String;)Landroid/view/KeyEvent;"); |
| GET_METHOD_ID(gKeyEventClassInfo.recycle, gKeyEventClassInfo.clazz, |
| "recycle", "()V"); |
| |
| GET_FIELD_ID(gKeyEventClassInfo.mDeviceId, gKeyEventClassInfo.clazz, |
| "mDeviceId", "I"); |
| GET_FIELD_ID(gKeyEventClassInfo.mSource, gKeyEventClassInfo.clazz, |
| "mSource", "I"); |
| 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.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, "android/view/KeyEvent", g_methods, NELEM(g_methods)); |
| } |
| |
| } // namespace android |