| /* |
| * Copyright (C) 2011 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 "InputApplicationHandle" |
| |
| #include <nativehelper/JNIHelp.h> |
| #include "core_jni_helpers.h" |
| #include "jni.h" |
| #include <android_runtime/AndroidRuntime.h> |
| #include <utils/threads.h> |
| |
| #include "android_hardware_input_InputApplicationHandle.h" |
| #include "android_util_Binder.h" |
| |
| namespace android { |
| |
| static struct { |
| jclass clazz; |
| jmethodID ctor; |
| jfieldID ptr; |
| jfieldID name; |
| jfieldID dispatchingTimeoutMillis; |
| jfieldID token; |
| } gInputApplicationHandleClassInfo; |
| |
| static Mutex gHandleMutex; |
| |
| |
| // --- NativeInputApplicationHandle --- |
| |
| NativeInputApplicationHandle::NativeInputApplicationHandle(jweak objWeak) : |
| mObjWeak(objWeak) { |
| } |
| |
| NativeInputApplicationHandle::~NativeInputApplicationHandle() { |
| JNIEnv* env = AndroidRuntime::getJNIEnv(); |
| env->DeleteWeakGlobalRef(mObjWeak); |
| } |
| |
| jobject NativeInputApplicationHandle::getInputApplicationHandleObjLocalRef(JNIEnv* env) { |
| return env->NewLocalRef(mObjWeak); |
| } |
| |
| bool NativeInputApplicationHandle::updateInfo() { |
| JNIEnv* env = AndroidRuntime::getJNIEnv(); |
| ScopedLocalRef<jobject> obj(env, env->NewLocalRef(mObjWeak)); |
| if (!obj.get()) { |
| return false; |
| } |
| if (mInfo.token.get() != nullptr) { |
| // The java fields are immutable, so it doesn't need to update again. |
| return true; |
| } |
| |
| mInfo.name = getStringField(env, obj.get(), gInputApplicationHandleClassInfo.name, "<null>"); |
| |
| mInfo.dispatchingTimeoutMillis = |
| env->GetLongField(obj.get(), gInputApplicationHandleClassInfo.dispatchingTimeoutMillis); |
| |
| ScopedLocalRef<jobject> tokenObj(env, env->GetObjectField(obj.get(), |
| gInputApplicationHandleClassInfo.token)); |
| if (tokenObj.get()) { |
| mInfo.token = ibinderForJavaObject(env, tokenObj.get()); |
| } else { |
| mInfo.token.clear(); |
| } |
| |
| return mInfo.token.get() != nullptr; |
| } |
| |
| // --- Global functions --- |
| |
| std::shared_ptr<InputApplicationHandle> android_view_InputApplicationHandle_getHandle( |
| JNIEnv* env, jobject inputApplicationHandleObj) { |
| if (!inputApplicationHandleObj) { |
| return NULL; |
| } |
| |
| AutoMutex _l(gHandleMutex); |
| jlong ptr = env->GetLongField(inputApplicationHandleObj, gInputApplicationHandleClassInfo.ptr); |
| std::shared_ptr<NativeInputApplicationHandle>* handle; |
| if (ptr) { |
| handle = reinterpret_cast<std::shared_ptr<NativeInputApplicationHandle>*>(ptr); |
| } else { |
| jweak objWeak = env->NewWeakGlobalRef(inputApplicationHandleObj); |
| handle = new std::shared_ptr(std::make_shared<NativeInputApplicationHandle>(objWeak)); |
| env->SetLongField(inputApplicationHandleObj, gInputApplicationHandleClassInfo.ptr, |
| reinterpret_cast<jlong>(handle)); |
| } |
| return *handle; |
| } |
| |
| jobject android_view_InputApplicationHandle_fromInputApplicationInfo( |
| JNIEnv* env, gui::InputApplicationInfo inputApplicationInfo) { |
| jobject binderObject = javaObjectForIBinder(env, inputApplicationInfo.token); |
| ScopedLocalRef<jstring> name(env, env->NewStringUTF(inputApplicationInfo.name.data())); |
| return env->NewObject(gInputApplicationHandleClassInfo.clazz, |
| gInputApplicationHandleClassInfo.ctor, binderObject, name.get(), |
| inputApplicationInfo.dispatchingTimeoutMillis); |
| } |
| |
| // --- JNI --- |
| |
| static void android_view_InputApplicationHandle_nativeDispose(JNIEnv* env, jobject obj) { |
| AutoMutex _l(gHandleMutex); |
| |
| jlong ptr = env->GetLongField(obj, gInputApplicationHandleClassInfo.ptr); |
| if (ptr) { |
| env->SetLongField(obj, gInputApplicationHandleClassInfo.ptr, 0); |
| |
| std::shared_ptr<NativeInputApplicationHandle>* handle = |
| reinterpret_cast<std::shared_ptr<NativeInputApplicationHandle>*>(ptr); |
| delete handle; |
| } |
| } |
| |
| |
| static const JNINativeMethod gInputApplicationHandleMethods[] = { |
| /* name, signature, funcPtr */ |
| { "nativeDispose", "()V", |
| (void*) android_view_InputApplicationHandle_nativeDispose }, |
| }; |
| |
| #define FIND_CLASS(var, className) \ |
| var = env->FindClass(className); \ |
| LOG_FATAL_IF(! (var), "Unable to find class " className); |
| |
| #define GET_FIELD_ID(var, clazz, fieldName, fieldDescriptor) \ |
| var = env->GetFieldID(clazz, fieldName, fieldDescriptor); \ |
| LOG_FATAL_IF(! (var), "Unable to find field " fieldName); |
| |
| #define GET_METHOD_ID(var, clazz, methodName, methodSignature) \ |
| var = env->GetMethodID(clazz, methodName, methodSignature); \ |
| LOG_ALWAYS_FATAL_IF(!(var), "Unable to find method " methodName); |
| |
| int register_android_view_InputApplicationHandle(JNIEnv* env) { |
| int res = jniRegisterNativeMethods(env, "android/view/InputApplicationHandle", |
| gInputApplicationHandleMethods, NELEM(gInputApplicationHandleMethods)); |
| (void) res; // Faked use when LOG_NDEBUG. |
| LOG_FATAL_IF(res < 0, "Unable to register native methods."); |
| |
| jclass clazz; |
| FIND_CLASS(clazz, "android/view/InputApplicationHandle"); |
| gInputApplicationHandleClassInfo.clazz = MakeGlobalRefOrDie(env, clazz); |
| |
| GET_METHOD_ID(gInputApplicationHandleClassInfo.ctor, clazz, "<init>", |
| "(Landroid/os/IBinder;Ljava/lang/String;J)V"); |
| |
| GET_FIELD_ID(gInputApplicationHandleClassInfo.ptr, clazz, |
| "ptr", "J"); |
| |
| GET_FIELD_ID(gInputApplicationHandleClassInfo.name, clazz, |
| "name", "Ljava/lang/String;"); |
| |
| GET_FIELD_ID(gInputApplicationHandleClassInfo.dispatchingTimeoutMillis, clazz, |
| "dispatchingTimeoutMillis", "J"); |
| |
| GET_FIELD_ID(gInputApplicationHandleClassInfo.token, clazz, |
| "token", "Landroid/os/IBinder;"); |
| |
| return 0; |
| } |
| |
| } /* namespace android */ |