| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| #ifndef WeexCore_BASE_ANDROID_SCOPED_JAVA_REF_H_ |
| #define WeexCore_BASE_ANDROID_SCOPED_JAVA_REF_H_ |
| |
| #include <jni.h> |
| |
| namespace base { |
| namespace android { |
| class JavaRef { |
| public: |
| JavaRef(); |
| |
| JavaRef(JNIEnv *env, jobject obj); |
| |
| ~JavaRef() {} |
| |
| void ResetNewLocalRef(JNIEnv *env, jobject obj); |
| |
| void ReleaseLocalRef(JNIEnv *env); |
| |
| void ResetNewGlobalRef(JNIEnv *env, jobject obj); |
| |
| void ReleaseGlobalRef(JNIEnv *env); |
| |
| jobject Release(); |
| |
| jobject Get() const { return obj_; } |
| |
| bool IsNull() const { return obj_ == nullptr; } |
| |
| protected: |
| jobject obj_; |
| }; |
| |
| template<typename T> |
| class ScopedLocalJavaRef : public JavaRef { |
| public: |
| ScopedLocalJavaRef() : env_(nullptr) {} |
| |
| ScopedLocalJavaRef(JNIEnv *env, T obj) : env_(env), JavaRef(env, obj) { |
| } |
| |
| ScopedLocalJavaRef(const ScopedLocalJavaRef<T> &other) : env_(other.env_) { |
| Reset(env_, other.Get()); |
| } |
| |
| void operator=(const ScopedLocalJavaRef<T> &other) { |
| env_ = other.env_; |
| Reset(env_, other.Get()); |
| } |
| |
| ~ScopedLocalJavaRef() { |
| ReleaseLocalRef(env_); |
| } |
| |
| void Reset(JNIEnv *env, jobject obj) { |
| ResetNewLocalRef(env, obj); |
| } |
| |
| T Get() const { return static_cast<T>(obj_); } |
| |
| private: |
| JNIEnv *env_; |
| }; |
| |
| template<typename T> |
| class ScopedGlobalJavaRef : public JavaRef { |
| public: |
| ScopedGlobalJavaRef() {} |
| |
| ScopedGlobalJavaRef(JNIEnv *env, T obj) { |
| Reset(env, obj); |
| } |
| |
| ScopedGlobalJavaRef(const ScopedGlobalJavaRef<T> &other) { |
| Reset(nullptr, other.Get()); |
| } |
| |
| ScopedGlobalJavaRef( |
| const ScopedLocalJavaRef<T> &other) { |
| Reset(nullptr, other.Get()); |
| } |
| |
| ~ScopedGlobalJavaRef() { |
| ReleaseGlobalRef(nullptr); |
| } |
| |
| void operator=(const ScopedGlobalJavaRef<T> &other) { |
| Reset(nullptr, other.Get()); |
| } |
| |
| void Reset(JNIEnv *env, const ScopedLocalJavaRef<T> &other) { |
| ResetNewGlobalRef(env, other.Get()); |
| } |
| |
| void Reset(JNIEnv *env, jobject obj) { |
| ResetNewGlobalRef(env, obj); |
| } |
| |
| T Get() const { return static_cast<T>(obj_); } |
| }; |
| |
| } // namespace android |
| } // namespace base |
| |
| |
| #endif // WeexCore_BASE_ANDROID_SCOPED_JAVA_REF_H_ |