Context.h

/*
 * Copyright (C) 2019-2023 HERE Europe B.V.
 *
 * 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.
 *
 * SPDX-License-Identifier: Apache-2.0
 * License-Filename: LICENSE
 */
 
#pragma once
 
#include <functional>
#include <memory>
#include <mutex>
#include <string>
 
#include <olp/core/CoreApi.h>
 
#if defined(ANDROID) || defined(ANDROID_HOST)
#include <jni.h>
#endif
 
namespace olp {
namespace context {
struct ContextData;
 
class CORE_API Context {
 public:
  using InitializedCallback = std::function<void()>;
 
  using DeinitializedCallback = std::function<void()>;
 
  static void addInitializeCallbacks(InitializedCallback initCallback,
                                     DeinitializedCallback deinitCalback);
 
  class CORE_API Scope {
   public:
    Scope();
 
#if defined(ANDROID) || defined(ANDROID_HOST)
    Scope(JavaVM* vm, jobject context);
#endif
 
    Scope(const Scope&) = delete;
    Scope& operator=(const Scope&) = delete;
 
    ~Scope();
 
   private:
    std::shared_ptr<ContextData> m_cd;
  };
 
  Context() = delete;
 
  friend class Context::Scope;
 
 private:
  static void init();
 
  static void deinit();
 
#if defined(ANDROID) || defined(ANDROID_HOST)
  static void init(JavaVM* vm, jobject application);
#endif
 
 public:
#if defined(ANDROID) || defined(ANDROID_HOST)
  static JavaVM* getJavaVM();
  static jobject getAndroidContext();
#elif defined(__APPLE__)
  static void EnterBackground();
 
  static void ExitBackground();
 
  static void StoreBackgroundSessionCompletionHandler(
      const std::string& session_name,
      std::function<void(void)> completion_handler);
 
#endif  // __APPLE__
};
 
}  // namespace context
}  // namespace olp