| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef NET_ANDROID_NETWORK_CHANGE_NOTIFIER_ANDROID_H_ |
| #define NET_ANDROID_NETWORK_CHANGE_NOTIFIER_ANDROID_H_ |
| |
| #include "base/android/jni_android.h" |
| #include "base/basictypes.h" |
| #include "base/compiler_specific.h" |
| #include "net/android/network_change_notifier_delegate_android.h" |
| #include "net/base/network_change_notifier.h" |
| |
| namespace net { |
| |
| class NetworkChangeNotifierAndroidTest; |
| class NetworkChangeNotifierFactoryAndroid; |
| |
| // NetworkChangeNotifierAndroid observes network events from the Android |
| // notification system and forwards them to observers. |
| // |
| // The implementation is complicated by the differing lifetime and thread |
| // affinity requirements of Android notifications and of NetworkChangeNotifier. |
| // |
| // High-level overview: |
| // NetworkChangeNotifier.java - Receives notifications from Android system, and |
| // notifies native code via JNI (on the main application thread). |
| // NetworkChangeNotifierDelegateAndroid ('Delegate') - Listens for notifications |
| // sent via JNI on the main application thread, and forwards them to observers |
| // on their threads. Owned by Factory, lives exclusively on main application |
| // thread. |
| // NetworkChangeNotifierFactoryAndroid ('Factory') - Creates the Delegate on the |
| // main thread to receive JNI events, and vends Notifiers. Lives exclusively |
| // on main application thread, and outlives all other classes. |
| // NetworkChangeNotifierAndroid ('Notifier') - Receives event notifications from |
| // the Delegate. Processes and forwards these events to the |
| // NetworkChangeNotifier observers on their threads. May live on any thread |
| // and be called by any thread. |
| // |
| // For more details, see the implementation file. |
| class NET_EXPORT_PRIVATE NetworkChangeNotifierAndroid |
| : public NetworkChangeNotifier, |
| public NetworkChangeNotifierDelegateAndroid::Observer { |
| public: |
| virtual ~NetworkChangeNotifierAndroid(); |
| |
| // NetworkChangeNotifier: |
| virtual ConnectionType GetCurrentConnectionType() const OVERRIDE; |
| |
| // NetworkChangeNotifierDelegateAndroid::Observer: |
| virtual void OnConnectionTypeChanged() OVERRIDE; |
| |
| static bool Register(JNIEnv* env); |
| |
| private: |
| friend class NetworkChangeNotifierAndroidTest; |
| friend class NetworkChangeNotifierFactoryAndroid; |
| |
| class DnsConfigServiceThread; |
| |
| explicit NetworkChangeNotifierAndroid( |
| NetworkChangeNotifierDelegateAndroid* delegate); |
| |
| static NetworkChangeCalculatorParams NetworkChangeCalculatorParamsAndroid(); |
| |
| NetworkChangeNotifierDelegateAndroid* const delegate_; |
| scoped_ptr<DnsConfigServiceThread> dns_config_service_thread_; |
| |
| DISALLOW_COPY_AND_ASSIGN(NetworkChangeNotifierAndroid); |
| }; |
| |
| } // namespace net |
| |
| #endif // NET_ANDROID_NETWORK_CHANGE_NOTIFIER_ANDROID_H_ |