net/proxy/proxy_config_service_android.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef NET_PROXY_PROXY_CONFIG_SERVICE_ANDROID_H_
   6 #define NET_PROXY_PROXY_CONFIG_SERVICE_ANDROID_H_
   7
   8 #include <string>
   9
  10 #include "base/android/jni_android.h"
  11 #include "base/basictypes.h"
  12 #include "base/callback_forward.h"
  13 #include "base/compiler_specific.h"
  14 #include "base/memory/ref_counted.h"
  15 #include "net/base/net_export.h"
  16 #include "net/proxy/proxy_config_service.h"
  17
  18 namespace base {
  19 class SequencedTaskRunner;
  20 }
  21
  22 namespace net {
  23
  24 class ProxyConfig;
  25
  26 class NET_EXPORT ProxyConfigServiceAndroid : public ProxyConfigService {
  27  public:
  28   // Callback that returns the value of the property identified by the provided
  29   // key. If it was not found, an empty string is returned. Note that this
  30   // interface does not let you distinguish an empty property from a
  31   // non-existing property. This callback is invoked on the JNI thread.
  32   typedef base::Callback<std::string (const std::string& property)>
  33       GetPropertyCallback;
  34
  35   // Separate class whose instance is owned by the Delegate class implemented in
  36   // the .cc file.
  37   class JNIDelegate {
  38    public:
  39     virtual ~JNIDelegate() {}
  40
  41     // Called from Java (on JNI thread) to signal that the proxy settings have
  42     // changed.
  43     virtual void ProxySettingsChanged(JNIEnv*, jobject) = 0;
  44   };
  45
  46   ProxyConfigServiceAndroid(base::SequencedTaskRunner* network_task_runner,
  47                             base::SequencedTaskRunner* jni_task_runner);
  48
  49   virtual ~ProxyConfigServiceAndroid();
  50
  51   // Register JNI bindings.
  52   static bool Register(JNIEnv* env);
  53
  54   // ProxyConfigService:
  55   // Called only on the network thread.
  56   virtual void AddObserver(Observer* observer) OVERRIDE;
  57   virtual void RemoveObserver(Observer* observer) OVERRIDE;
  58   virtual ConfigAvailability GetLatestProxyConfig(ProxyConfig* config) OVERRIDE;
  59
  60  private:
  61   friend class ProxyConfigServiceAndroidTestBase;
  62   class Delegate;
  63
  64
  65   // For tests.
  66   ProxyConfigServiceAndroid(base::SequencedTaskRunner* network_task_runner,
  67                             base::SequencedTaskRunner* jni_task_runner,
  68                             GetPropertyCallback get_property_callback);
  69
  70   // For tests.
  71   void ProxySettingsChanged();
  72
  73   scoped_refptr<Delegate> delegate_;
  74
  75   DISALLOW_COPY_AND_ASSIGN(ProxyConfigServiceAndroid);
  76 };
  77
  78 } // namespace net
  79
  80 #endif // NET_PROXY_PROXY_CONFIG_SERVICE_ANDROID_H_