2 * Copyright 2006, 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 #include <android_runtime/AndroidRuntime.h>
19 #include <input/KeyCharacterMap.h>
20 #include <input/Input.h>
21 #include <binder/Parcel.h>
23 #include <nativehelper/jni.h>
24 #include <nativehelper/JNIHelp.h>
26 #include "android_os_Parcel.h"
27 #include "android_view_KeyEvent.h"
34 } gKeyCharacterMapClassInfo;
43 } gFallbackActionClassInfo;
46 class NativeKeyCharacterMap {
48 NativeKeyCharacterMap(int32_t deviceId, const sp<KeyCharacterMap>& map) :
49 mDeviceId(deviceId), mMap(map) {
52 ~NativeKeyCharacterMap() {
55 inline int32_t getDeviceId() const {
59 inline const sp<KeyCharacterMap>& getMap() const {
65 sp<KeyCharacterMap> mMap;
69 jobject android_view_KeyCharacterMap_create(JNIEnv* env, int32_t deviceId,
70 const sp<KeyCharacterMap>& kcm) {
71 NativeKeyCharacterMap* map = new NativeKeyCharacterMap(deviceId,
72 kcm.get() ? kcm : KeyCharacterMap::empty());
77 return env->NewObject(gKeyCharacterMapClassInfo.clazz, gKeyCharacterMapClassInfo.ctor,
78 reinterpret_cast<jlong>(map));
81 static jlong nativeReadFromParcel(JNIEnv *env, jobject clazz, jobject parcelObj) {
82 Parcel* parcel = parcelForJavaObject(env, parcelObj);
87 int32_t deviceId = parcel->readInt32();
88 if (parcel->errorCheck()) {
92 sp<KeyCharacterMap> kcm = KeyCharacterMap::readFromParcel(parcel);
97 NativeKeyCharacterMap* map = new NativeKeyCharacterMap(deviceId, kcm);
98 return reinterpret_cast<jlong>(map);
101 static void nativeWriteToParcel(JNIEnv* env, jobject clazz, jlong ptr, jobject parcelObj) {
102 NativeKeyCharacterMap* map = reinterpret_cast<NativeKeyCharacterMap*>(ptr);
103 Parcel* parcel = parcelForJavaObject(env, parcelObj);
105 parcel->writeInt32(map->getDeviceId());
106 map->getMap()->writeToParcel(parcel);
110 static void nativeDispose(JNIEnv *env, jobject clazz, jlong ptr) {
111 NativeKeyCharacterMap* map = reinterpret_cast<NativeKeyCharacterMap*>(ptr);
115 static jchar nativeGetCharacter(JNIEnv *env, jobject clazz, jlong ptr,
116 jint keyCode, jint metaState) {
117 NativeKeyCharacterMap* map = reinterpret_cast<NativeKeyCharacterMap*>(ptr);
118 return map->getMap()->getCharacter(keyCode, metaState);
121 static jboolean nativeGetFallbackAction(JNIEnv *env, jobject clazz, jlong ptr, jint keyCode,
122 jint metaState, jobject fallbackActionObj) {
123 NativeKeyCharacterMap* map = reinterpret_cast<NativeKeyCharacterMap*>(ptr);
124 KeyCharacterMap::FallbackAction fallbackAction;
126 bool result = map->getMap()->getFallbackAction(keyCode, metaState, &fallbackAction);
128 env->SetIntField(fallbackActionObj, gFallbackActionClassInfo.keyCode,
129 fallbackAction.keyCode);
130 env->SetIntField(fallbackActionObj, gFallbackActionClassInfo.metaState,
131 fallbackAction.metaState);
136 static jchar nativeGetNumber(JNIEnv *env, jobject clazz, jlong ptr, jint keyCode) {
137 NativeKeyCharacterMap* map = reinterpret_cast<NativeKeyCharacterMap*>(ptr);
138 return map->getMap()->getNumber(keyCode);
141 static jchar nativeGetMatch(JNIEnv *env, jobject clazz, jlong ptr, jint keyCode,
142 jcharArray charsArray, jint metaState) {
143 NativeKeyCharacterMap* map = reinterpret_cast<NativeKeyCharacterMap*>(ptr);
145 jsize numChars = env->GetArrayLength(charsArray);
146 jchar* chars = static_cast<jchar*>(env->GetPrimitiveArrayCritical(charsArray, NULL));
151 char16_t result = map->getMap()->getMatch(keyCode, chars, size_t(numChars), metaState);
153 env->ReleasePrimitiveArrayCritical(charsArray, chars, JNI_ABORT);
157 static jchar nativeGetDisplayLabel(JNIEnv *env, jobject clazz, jlong ptr, jint keyCode) {
158 NativeKeyCharacterMap* map = reinterpret_cast<NativeKeyCharacterMap*>(ptr);
159 return map->getMap()->getDisplayLabel(keyCode);
162 static jint nativeGetKeyboardType(JNIEnv *env, jobject clazz, jlong ptr) {
163 NativeKeyCharacterMap* map = reinterpret_cast<NativeKeyCharacterMap*>(ptr);
164 return map->getMap()->getKeyboardType();
167 static jobjectArray nativeGetEvents(JNIEnv *env, jobject clazz, jlong ptr,
168 jcharArray charsArray) {
169 NativeKeyCharacterMap* map = reinterpret_cast<NativeKeyCharacterMap*>(ptr);
171 jchar* chars = env->GetCharArrayElements(charsArray, NULL);
175 jsize numChars = env->GetArrayLength(charsArray);
177 Vector<KeyEvent> events;
178 jobjectArray result = NULL;
179 if (map->getMap()->getEvents(map->getDeviceId(), chars, size_t(numChars), events)) {
180 result = env->NewObjectArray(jsize(events.size()), gKeyEventClassInfo.clazz, NULL);
182 for (size_t i = 0; i < events.size(); i++) {
183 jobject keyEventObj = android_view_KeyEvent_fromNative(env, &events.itemAt(i));
184 if (!keyEventObj) break; // threw OOM exception
185 env->SetObjectArrayElement(result, jsize(i), keyEventObj);
186 env->DeleteLocalRef(keyEventObj);
191 env->ReleaseCharArrayElements(charsArray, chars, JNI_ABORT);
200 static JNINativeMethod g_methods[] = {
201 /* name, signature, funcPtr */
202 { "nativeReadFromParcel", "(Landroid/os/Parcel;)J",
203 (void*)nativeReadFromParcel },
204 { "nativeWriteToParcel", "(JLandroid/os/Parcel;)V",
205 (void*)nativeWriteToParcel },
206 { "nativeDispose", "(J)V",
207 (void*)nativeDispose },
208 { "nativeGetCharacter", "(JII)C",
209 (void*)nativeGetCharacter },
210 { "nativeGetFallbackAction", "(JIILandroid/view/KeyCharacterMap$FallbackAction;)Z",
211 (void*)nativeGetFallbackAction },
212 { "nativeGetNumber", "(JI)C",
213 (void*)nativeGetNumber },
214 { "nativeGetMatch", "(JI[CI)C",
215 (void*)nativeGetMatch },
216 { "nativeGetDisplayLabel", "(JI)C",
217 (void*)nativeGetDisplayLabel },
218 { "nativeGetKeyboardType", "(J)I",
219 (void*)nativeGetKeyboardType },
220 { "nativeGetEvents", "(J[C)[Landroid/view/KeyEvent;",
221 (void*)nativeGetEvents },
224 #define FIND_CLASS(var, className) \
225 var = env->FindClass(className); \
226 LOG_FATAL_IF(! var, "Unable to find class " className);
228 #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
229 var = env->GetMethodID(clazz, methodName, methodDescriptor); \
230 LOG_FATAL_IF(! var, "Unable to find method " methodName);
232 #define GET_FIELD_ID(var, clazz, fieldName, fieldDescriptor) \
233 var = env->GetFieldID(clazz, fieldName, fieldDescriptor); \
234 LOG_FATAL_IF(! var, "Unable to find field " fieldName);
236 int register_android_view_KeyCharacterMap(JNIEnv* env)
238 FIND_CLASS(gKeyCharacterMapClassInfo.clazz, "android/view/KeyCharacterMap");
239 gKeyCharacterMapClassInfo.clazz = jclass(env->NewGlobalRef(gKeyCharacterMapClassInfo.clazz));
241 GET_METHOD_ID(gKeyCharacterMapClassInfo.ctor, gKeyCharacterMapClassInfo.clazz,
244 FIND_CLASS(gKeyEventClassInfo.clazz, "android/view/KeyEvent");
245 gKeyEventClassInfo.clazz = jclass(env->NewGlobalRef(gKeyEventClassInfo.clazz));
248 FIND_CLASS(clazz, "android/view/KeyCharacterMap$FallbackAction");
250 GET_FIELD_ID(gFallbackActionClassInfo.keyCode, clazz,
253 GET_FIELD_ID(gFallbackActionClassInfo.metaState, clazz,
256 return AndroidRuntime::registerNativeMethods(env,
257 "android/view/KeyCharacterMap", g_methods, NELEM(g_methods));
260 }; // namespace android