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/*
* Copyright 2006, 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.
*/
#include <ui/KeyCharacterMap.h>
#include <nativehelper/jni.h>
#include <android_runtime/AndroidRuntime.h>
#include <nativehelper/JNIHelp.h>
namespace android {
static jint
ctor(JNIEnv *env, jobject clazz, jint id)
{
return reinterpret_cast<int>(KeyCharacterMap::load(id));
}
static void
dtor(JNIEnv *env, jobject clazz, jint ptr)
{
delete reinterpret_cast<KeyCharacterMap*>(ptr);
}
static jchar
get(JNIEnv *env, jobject clazz, jint ptr, jint keycode, jint meta)
{
return reinterpret_cast<KeyCharacterMap*>(ptr)->get(keycode, meta);
}
static jchar
getNumber(JNIEnv *env, jobject clazz, jint ptr, jint keycode)
{
return reinterpret_cast<KeyCharacterMap*>(ptr)->getNumber(keycode);
}
static jchar
getMatch(JNIEnv *env, jobject clazz, jint ptr, jint keycode, jcharArray chars, jint modifiers)
{
jchar rv;
jchar* ch = env->GetCharArrayElements(chars, NULL);
jsize chsize = env->GetArrayLength(chars);
rv = reinterpret_cast<KeyCharacterMap*>(ptr)->getMatch(keycode, ch, chsize, modifiers);
env->ReleaseCharArrayElements(chars, ch, JNI_ABORT);
return rv;
}
static jchar
getDisplayLabel(JNIEnv *env, jobject clazz, jint ptr, jint keycode)
{
return reinterpret_cast<KeyCharacterMap*>(ptr)->getDisplayLabel(keycode);
}
static jfieldID gKeyDataMetaField;
static jfieldID gKeyDataNumberField;
static jfieldID gKeyDataDisplayLabelField;
static jboolean
getKeyData(JNIEnv *env, jobject clazz, jint ptr, jint keycode, jobject keydata)
{
jboolean rv;
unsigned short displayLabel = env->GetCharField(keydata, gKeyDataDisplayLabelField);
unsigned short number = env->GetCharField(keydata, gKeyDataNumberField);
jcharArray chars = (jcharArray) env->GetObjectField(keydata, gKeyDataMetaField);
jchar* ch = env->GetCharArrayElements(chars, NULL);
KeyCharacterMap* kmap = reinterpret_cast<KeyCharacterMap*>(ptr);
rv = kmap->getKeyData(keycode, &displayLabel, &number, ch);
env->SetCharField(keydata, gKeyDataDisplayLabelField, displayLabel);
env->SetCharField(keydata, gKeyDataNumberField, number);
env->ReleaseCharArrayElements(chars, ch, 0);
return rv;
}
static jint
getKeyboardType(JNIEnv *env, jobject clazz, jint ptr)
{
return reinterpret_cast<KeyCharacterMap*>(ptr)->getKeyboardType();
}
static jlongArray
getEvents(JNIEnv *env, jobject clazz, jint ptr, jcharArray jchars)
{
KeyCharacterMap* kmap = reinterpret_cast<KeyCharacterMap*>(ptr);
uint16_t* chars = env->GetCharArrayElements(jchars, NULL);
size_t len = env->GetArrayLength(jchars);
Vector<int32_t> keys;
Vector<uint32_t> modifiers;
bool success = kmap->getEvents(chars, len, &keys, &modifiers);
env->ReleaseCharArrayElements(jchars, chars, JNI_ABORT);
if (success) {
size_t N = keys.size();
jlongArray rv = env->NewLongArray(N);
uint64_t* results = (uint64_t*)env->GetLongArrayElements(rv, NULL);
for (size_t i=0; i<N; i++) {
uint64_t v = modifiers[i];
v <<= 32;
v |= keys[i];
results[i] = v;
}
env->ReleaseLongArrayElements(rv, (jlong*)results, 0);
return rv;
} else {
return NULL;
}
}
// ============================================================================
/*
* JNI registration.
*/
static JNINativeMethod g_methods[] = {
/* name, signature, funcPtr */
{ "ctor_native", "(I)I", (void*)ctor },
{ "dtor_native", "(I)V", (void*)dtor },
{ "get_native", "(III)C", (void*)get },
{ "getNumber_native", "(II)C", (void*)getNumber },
{ "getMatch_native", "(II[CI)C", (void*)getMatch },
{ "getDisplayLabel_native", "(II)C", (void*)getDisplayLabel },
{ "getKeyData_native", "(IILandroid/view/KeyCharacterMap$KeyData;)Z",
(void*)getKeyData },
{ "getKeyboardType_native", "(I)I", (void*)getKeyboardType },
{ "getEvents_native", "(I[C)[J", (void*)getEvents }
};
int register_android_text_KeyCharacterMap(JNIEnv* env)
{
jclass clazz;
clazz = env->FindClass("android/view/KeyCharacterMap$KeyData");
if (clazz == NULL) {
LOGE("Can't find android/view/KeyCharacterMap$KeyData");
return -1;
}
gKeyDataMetaField = env->GetFieldID(clazz, "meta", "[C");
gKeyDataNumberField = env->GetFieldID(clazz, "number", "C");
gKeyDataDisplayLabelField = env->GetFieldID(clazz, "displayLabel", "C");
return AndroidRuntime::registerNativeMethods(env,
"android/view/KeyCharacterMap", g_methods, NELEM(g_methods));
}
}; // namespace android
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