chrome/browser/copresence/chrome_whispernet_client.h

   1 // Copyright 2014 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 CHROME_BROWSER_COPRESENCE_CHROME_WHISPERNET_CLIENT_H_
   6 #define CHROME_BROWSER_COPRESENCE_CHROME_WHISPERNET_CLIENT_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/callback.h"
  12 #include "base/macros.h"
  13 #include "components/copresence/public/whispernet_client.h"
  14
  15 namespace content {
  16 class BrowserContext;
  17 }
  18
  19 namespace extensions {
  20 namespace api {
  21 namespace copresence_private {
  22 struct AudioParameters;
  23 }
  24 }
  25 }
  26
  27 namespace media {
  28 class AudioBusRefCounted;
  29 }
  30
  31 // This class is responsible for communication with our ledger_proxy extension
  32 // that talks to the whispernet audio library.
  33 class ChromeWhispernetClient : public copresence::WhispernetClient {
  34  public:
  35   // The browser context needs to outlive this class.
  36   explicit ChromeWhispernetClient(content::BrowserContext* browser_context);
  37   virtual ~ChromeWhispernetClient();
  38
  39   // WhispernetClient overrides:
  40   virtual void Initialize(const SuccessCallback& init_callback) OVERRIDE;
  41   virtual void Shutdown() OVERRIDE;
  42
  43   virtual void EncodeToken(const std::string& token, bool audible) OVERRIDE;
  44   virtual void DecodeSamples(const std::string& samples) OVERRIDE;
  45   virtual void DetectBroadcast() OVERRIDE;
  46
  47   virtual void RegisterTokensCallback(
  48       const TokensCallback& tokens_callback) OVERRIDE;
  49   virtual void RegisterSamplesCallback(
  50       const SamplesCallback& samples_callback) OVERRIDE;
  51   virtual void RegisterDetectBroadcastCallback(
  52       const SuccessCallback& db_callback) OVERRIDE;
  53
  54   virtual TokensCallback GetTokensCallback() OVERRIDE;
  55   virtual SamplesCallback GetSamplesCallback() OVERRIDE;
  56   virtual SuccessCallback GetDetectBroadcastCallback() OVERRIDE;
  57   virtual SuccessCallback GetInitializedCallback() OVERRIDE;
  58
  59   static const char kWhispernetProxyExtensionId[];
  60
  61  private:
  62   // Fire an event to initialize whispernet with the given parameters.
  63   void InitializeWhispernet(
  64       const extensions::api::copresence_private::AudioParameters& params);
  65
  66   // This gets called twice; once when the proxy extension loads, the second
  67   // time when we have initialized the proxy extension's encoder and decoder.
  68   void OnExtensionLoaded(bool success);
  69
  70   content::BrowserContext* browser_context_;
  71
  72   SuccessCallback extension_loaded_callback_;
  73   SuccessCallback init_callback_;
  74
  75   TokensCallback tokens_callback_;
  76   SamplesCallback samples_callback_;
  77   SuccessCallback db_callback_;
  78
  79   bool extension_loaded_;
  80
  81   DISALLOW_COPY_AND_ASSIGN(ChromeWhispernetClient);
  82 };
  83
  84 #endif  // CHROME_BROWSER_COPRESENCE_CHROME_WHISPERNET_CLIENT_H_