The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2006, The Android Open Source Project |
| 3 | * |
| 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 |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 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. |
| 15 | */ |
| 16 | |
| 17 | #include <ui/KeyCharacterMap.h> |
| 18 | |
| 19 | #include <nativehelper/jni.h> |
| 20 | #include <android_runtime/AndroidRuntime.h> |
| 21 | #include <nativehelper/JNIHelp.h> |
| 22 | |
| 23 | namespace android { |
| 24 | |
| 25 | static jint |
| 26 | ctor(JNIEnv *env, jobject clazz, jint id) |
| 27 | { |
| 28 | return reinterpret_cast<int>(KeyCharacterMap::load(id)); |
| 29 | } |
| 30 | |
| 31 | static void |
| 32 | dtor(JNIEnv *env, jobject clazz, jint ptr) |
| 33 | { |
| 34 | delete reinterpret_cast<KeyCharacterMap*>(ptr); |
| 35 | } |
| 36 | |
| 37 | static jchar |
| 38 | get(JNIEnv *env, jobject clazz, jint ptr, jint keycode, jint meta) |
| 39 | { |
| 40 | return reinterpret_cast<KeyCharacterMap*>(ptr)->get(keycode, meta); |
| 41 | } |
| 42 | |
| 43 | static jchar |
| 44 | getNumber(JNIEnv *env, jobject clazz, jint ptr, jint keycode) |
| 45 | { |
| 46 | return reinterpret_cast<KeyCharacterMap*>(ptr)->getNumber(keycode); |
| 47 | } |
| 48 | |
| 49 | static jchar |
| 50 | getMatch(JNIEnv *env, jobject clazz, jint ptr, jint keycode, jcharArray chars, jint modifiers) |
| 51 | { |
| 52 | jchar rv; |
| 53 | jchar* ch = env->GetCharArrayElements(chars, NULL); |
| 54 | jsize chsize = env->GetArrayLength(chars); |
| 55 | |
| 56 | rv = reinterpret_cast<KeyCharacterMap*>(ptr)->getMatch(keycode, ch, chsize, modifiers); |
| 57 | |
| 58 | env->ReleaseCharArrayElements(chars, ch, JNI_ABORT); |
| 59 | return rv; |
| 60 | } |
| 61 | |
| 62 | static jchar |
| 63 | getDisplayLabel(JNIEnv *env, jobject clazz, jint ptr, jint keycode) |
| 64 | { |
| 65 | return reinterpret_cast<KeyCharacterMap*>(ptr)->getDisplayLabel(keycode); |
| 66 | } |
| 67 | |
| 68 | static jfieldID gKeyDataMetaField; |
| 69 | static jfieldID gKeyDataNumberField; |
| 70 | static jfieldID gKeyDataDisplayLabelField; |
| 71 | |
| 72 | static jboolean |
| 73 | getKeyData(JNIEnv *env, jobject clazz, jint ptr, jint keycode, jobject keydata) |
| 74 | { |
| 75 | jboolean rv; |
| 76 | |
| 77 | unsigned short displayLabel = env->GetCharField(keydata, gKeyDataDisplayLabelField); |
| 78 | unsigned short number = env->GetCharField(keydata, gKeyDataNumberField); |
| 79 | |
| 80 | jcharArray chars = (jcharArray) env->GetObjectField(keydata, gKeyDataMetaField); |
| 81 | jchar* ch = env->GetCharArrayElements(chars, NULL); |
| 82 | |
| 83 | KeyCharacterMap* kmap = reinterpret_cast<KeyCharacterMap*>(ptr); |
| 84 | rv = kmap->getKeyData(keycode, &displayLabel, &number, ch); |
| 85 | |
| 86 | env->SetCharField(keydata, gKeyDataDisplayLabelField, displayLabel); |
| 87 | env->SetCharField(keydata, gKeyDataNumberField, number); |
| 88 | |
| 89 | env->ReleaseCharArrayElements(chars, ch, 0); |
| 90 | return rv; |
| 91 | } |
| 92 | |
| 93 | static jint |
| 94 | getKeyboardType(JNIEnv *env, jobject clazz, jint ptr) |
| 95 | { |
| 96 | return reinterpret_cast<KeyCharacterMap*>(ptr)->getKeyboardType(); |
| 97 | } |
| 98 | |
| 99 | static jlongArray |
| 100 | getEvents(JNIEnv *env, jobject clazz, jint ptr, jcharArray jchars) |
| 101 | { |
| 102 | KeyCharacterMap* kmap = reinterpret_cast<KeyCharacterMap*>(ptr); |
| 103 | |
| 104 | uint16_t* chars = env->GetCharArrayElements(jchars, NULL); |
| 105 | size_t len = env->GetArrayLength(jchars); |
| 106 | |
| 107 | Vector<int32_t> keys; |
| 108 | Vector<uint32_t> modifiers; |
| 109 | bool success = kmap->getEvents(chars, len, &keys, &modifiers); |
| 110 | |
| 111 | env->ReleaseCharArrayElements(jchars, chars, JNI_ABORT); |
| 112 | |
| 113 | if (success) { |
| 114 | size_t N = keys.size(); |
| 115 | |
| 116 | jlongArray rv = env->NewLongArray(N); |
| 117 | uint64_t* results = (uint64_t*)env->GetLongArrayElements(rv, NULL); |
| 118 | |
| 119 | for (size_t i=0; i<N; i++) { |
| 120 | uint64_t v = modifiers[i]; |
| 121 | v <<= 32; |
| 122 | v |= keys[i]; |
| 123 | results[i] = v; |
| 124 | } |
| 125 | |
| 126 | env->ReleaseLongArrayElements(rv, (jlong*)results, 0); |
| 127 | return rv; |
| 128 | } else { |
| 129 | return NULL; |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | // ============================================================================ |
| 134 | /* |
| 135 | * JNI registration. |
| 136 | */ |
| 137 | |
| 138 | static JNINativeMethod g_methods[] = { |
| 139 | /* name, signature, funcPtr */ |
| 140 | { "ctor_native", "(I)I", (void*)ctor }, |
| 141 | { "dtor_native", "(I)V", (void*)dtor }, |
| 142 | { "get_native", "(III)C", (void*)get }, |
| 143 | { "getNumber_native", "(II)C", (void*)getNumber }, |
| 144 | { "getMatch_native", "(II[CI)C", (void*)getMatch }, |
| 145 | { "getDisplayLabel_native", "(II)C", (void*)getDisplayLabel }, |
| 146 | { "getKeyData_native", "(IILandroid/view/KeyCharacterMap$KeyData;)Z", |
| 147 | (void*)getKeyData }, |
| 148 | { "getKeyboardType_native", "(I)I", (void*)getKeyboardType }, |
| 149 | { "getEvents_native", "(I[C)[J", (void*)getEvents } |
| 150 | }; |
| 151 | |
| 152 | int register_android_text_KeyCharacterMap(JNIEnv* env) |
| 153 | { |
| 154 | jclass clazz; |
| 155 | |
| 156 | clazz = env->FindClass("android/view/KeyCharacterMap$KeyData"); |
| 157 | if (clazz == NULL) { |
| 158 | LOGE("Can't find android/view/KeyCharacterMap$KeyData"); |
| 159 | return -1; |
| 160 | } |
| 161 | |
| 162 | gKeyDataMetaField = env->GetFieldID(clazz, "meta", "[C"); |
| 163 | gKeyDataNumberField = env->GetFieldID(clazz, "number", "C"); |
| 164 | gKeyDataDisplayLabelField = env->GetFieldID(clazz, "displayLabel", "C"); |
| 165 | |
| 166 | return AndroidRuntime::registerNativeMethods(env, |
| 167 | "android/view/KeyCharacterMap", g_methods, NELEM(g_methods)); |
| 168 | } |
| 169 | |
| 170 | }; // namespace android |
| 171 | |
| 172 | |
| 173 | |