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      1 /*
      2  * Copyright 2010, 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 #define LOG_TAG "Configuration"
     18 
     19 #include <utils/Log.h>
     20 #include "utils/misc.h"
     21 
     22 #include "jni.h"
     23 #include <android_runtime/android_content_res_Configuration.h>
     24 #include "android_runtime/AndroidRuntime.h"
     25 
     26 namespace android {
     27 
     28 static struct {
     29     jclass clazz;
     30 
     31     jfieldID mcc;
     32     jfieldID mnc;
     33     jfieldID locale;
     34     jfieldID screenLayout;
     35     jfieldID touchscreen;
     36     jfieldID keyboard;
     37     jfieldID keyboardHidden;
     38     jfieldID hardKeyboardHidden;
     39     jfieldID navigation;
     40     jfieldID navigationHidden;
     41     jfieldID orientation;
     42     jfieldID uiMode;
     43 } gConfigurationClassInfo;
     44 
     45 void android_Configuration_getFromJava(
     46         JNIEnv* env, jobject clazz, struct AConfiguration* out) {
     47     out->mcc = env->GetIntField(clazz, gConfigurationClassInfo.mcc);
     48     out->mnc = env->GetIntField(clazz, gConfigurationClassInfo.mnc);
     49     out->screenLayout = env->GetIntField(clazz, gConfigurationClassInfo.screenLayout);
     50     out->touchscreen = env->GetIntField(clazz, gConfigurationClassInfo.touchscreen);
     51     out->keyboard = env->GetIntField(clazz, gConfigurationClassInfo.keyboard);
     52     out->navigation = env->GetIntField(clazz, gConfigurationClassInfo.navigation);
     53 
     54     out->inputFlags = env->GetIntField(clazz, gConfigurationClassInfo.keyboardHidden);
     55     int hardKeyboardHidden = env->GetIntField(clazz, gConfigurationClassInfo.hardKeyboardHidden);
     56     if (out->inputFlags == ACONFIGURATION_KEYSHIDDEN_NO
     57             && hardKeyboardHidden == 2) {
     58         out->inputFlags = ACONFIGURATION_KEYSHIDDEN_SOFT;
     59     }
     60     out->inputFlags |= env->GetIntField(clazz, gConfigurationClassInfo.navigationHidden)
     61             << ResTable_config::SHIFT_NAVHIDDEN;
     62 
     63     out->orientation = env->GetIntField(clazz, gConfigurationClassInfo.orientation);
     64     out->uiMode = env->GetIntField(clazz, gConfigurationClassInfo.uiMode);
     65 }
     66 
     67 /*
     68  * JNI registration.
     69  */
     70 static JNINativeMethod gMethods[] = {
     71     /* name, signature, funcPtr */
     72     //{ "getObbInfo_native", "(Ljava/lang/String;Landroid/content/res/ObbInfo;)Z",
     73     //        (void*) android_content_res_ObbScanner_getObbInfo },
     74 };
     75 
     76 #define FIND_CLASS(var, className) \
     77         var = env->FindClass(className); \
     78         LOG_FATAL_IF(! var, "Unable to find class " className); \
     79         var = jclass(env->NewGlobalRef(var));
     80 
     81 #define GET_FIELD_ID(var, clazz, fieldName, fieldDescriptor) \
     82         var = env->GetFieldID(clazz, fieldName, fieldDescriptor); \
     83         LOG_FATAL_IF(! var, "Unable to find field " fieldName);
     84 
     85 int register_android_content_res_Configuration(JNIEnv* env)
     86 {
     87     FIND_CLASS(gConfigurationClassInfo.clazz, "android/content/res/Configuration");
     88 
     89     GET_FIELD_ID(gConfigurationClassInfo.mcc, gConfigurationClassInfo.clazz,
     90             "mcc", "I");
     91     GET_FIELD_ID(gConfigurationClassInfo.mnc, gConfigurationClassInfo.clazz,
     92             "mnc", "I");
     93     GET_FIELD_ID(gConfigurationClassInfo.locale, gConfigurationClassInfo.clazz,
     94             "locale", "Ljava/util/Locale;");
     95     GET_FIELD_ID(gConfigurationClassInfo.screenLayout, gConfigurationClassInfo.clazz,
     96             "screenLayout", "I");
     97     GET_FIELD_ID(gConfigurationClassInfo.touchscreen, gConfigurationClassInfo.clazz,
     98             "touchscreen", "I");
     99     GET_FIELD_ID(gConfigurationClassInfo.keyboard, gConfigurationClassInfo.clazz,
    100             "keyboard", "I");
    101     GET_FIELD_ID(gConfigurationClassInfo.keyboardHidden, gConfigurationClassInfo.clazz,
    102             "keyboardHidden", "I");
    103     GET_FIELD_ID(gConfigurationClassInfo.hardKeyboardHidden, gConfigurationClassInfo.clazz,
    104             "hardKeyboardHidden", "I");
    105     GET_FIELD_ID(gConfigurationClassInfo.navigation, gConfigurationClassInfo.clazz,
    106             "navigation", "I");
    107     GET_FIELD_ID(gConfigurationClassInfo.navigationHidden, gConfigurationClassInfo.clazz,
    108             "navigationHidden", "I");
    109     GET_FIELD_ID(gConfigurationClassInfo.orientation, gConfigurationClassInfo.clazz,
    110             "orientation", "I");
    111     GET_FIELD_ID(gConfigurationClassInfo.uiMode, gConfigurationClassInfo.clazz,
    112             "uiMode", "I");
    113 
    114     return AndroidRuntime::registerNativeMethods(env, "android/content/res/Configuration", gMethods,
    115             NELEM(gMethods));
    116 }
    117 
    118 }; // namespace android
    119