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. The string and int arguments (the host/port pair for the proxy)
  43     // are either a host/port pair or ("", 0) to indicate "no proxy".
  44     virtual void ProxySettingsChangedTo(JNIEnv*, jobject, jstring, jint) = 0;
  45
  46     // Called from Java (on JNI thread) to signal that the proxy settings have
  47     // changed. New proxy settings are fetched from the system property store.
  48     virtual void ProxySettingsChanged(JNIEnv*, jobject) = 0;
  49   };
  50
  51   ProxyConfigServiceAndroid(base::SequencedTaskRunner* network_task_runner,
  52                             base::SequencedTaskRunner* jni_task_runner);
  53
  54   virtual ~ProxyConfigServiceAndroid();
  55
  56   // Register JNI bindings.
  57   static bool Register(JNIEnv* env);
  58
  59   // ProxyConfigService:
  60   // Called only on the network thread.
  61   virtual void AddObserver(Observer* observer) OVERRIDE;
  62   virtual void RemoveObserver(Observer* observer) OVERRIDE;
  63   virtual ConfigAvailability GetLatestProxyConfig(ProxyConfig* config) OVERRIDE;
  64
  65  private:
  66   friend class ProxyConfigServiceAndroidTestBase;
  67   class Delegate;
  68
  69   // For tests.
  70   ProxyConfigServiceAndroid(base::SequencedTaskRunner* network_task_runner,
  71                             base::SequencedTaskRunner* jni_task_runner,
  72                             GetPropertyCallback get_property_callback);
  73
  74   // For tests.
  75   void ProxySettingsChanged();
  76
  77   scoped_refptr<Delegate> delegate_;
  78
  79   DISALLOW_COPY_AND_ASSIGN(ProxyConfigServiceAndroid);
  80 };
  81
  82 } // namespace net
  83
  84 #endif // NET_PROXY_PROXY_CONFIG_SERVICE_ANDROID_H_