components/copresence/copresence_manager_impl.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 COMPONENTS_COPRESENCE_COPRESENCE_MANAGER_IMPL_H_
   6 #define COMPONENTS_COPRESENCE_COPRESENCE_MANAGER_IMPL_H_
   7
   8 #include <google/protobuf/repeated_field.h>
   9
  10 #include <string>
  11 #include <vector>
  12
  13 #include "base/cancelable_callback.h"
  14 #include "base/macros.h"
  15 #include "base/memory/scoped_ptr.h"
  16 #include "components/copresence/copresence_state_impl.h"
  17 #include "components/copresence/public/copresence_manager.h"
  18 #include "components/copresence/timed_map.h"
  19
  20 namespace base {
  21 class Timer;
  22 }
  23
  24 namespace net {
  25 class URLContextGetter;
  26 }
  27
  28 namespace copresence {
  29
  30 class DirectiveHandler;
  31 class GCMHandler;
  32 class ReportRequest;
  33 class RpcHandler;
  34 class SubscribedMessage;
  35 class WhispernetClient;
  36
  37 // The implementation for CopresenceManager. Responsible primarily for
  38 // client-side initialization. The RpcHandler handles all the details
  39 // of interacting with the server.
  40 // TODO(ckehoe, rkc): Add tests for this class.
  41 class CopresenceManagerImpl : public CopresenceManager {
  42  public:
  43   // The delegate is owned by the caller, and must outlive the manager.
  44   explicit CopresenceManagerImpl(CopresenceDelegate* delegate);
  45
  46   ~CopresenceManagerImpl() override;
  47
  48   // CopresenceManager overrides.
  49   CopresenceState* state() override;
  50   void ExecuteReportRequest(const ReportRequest& request,
  51                             const std::string& app_id,
  52                             const std::string& auth_token,
  53                             const StatusCallback& callback) override;
  54
  55  private:
  56   // Complete initialization when Whispernet is available.
  57   void WhispernetInitComplete(bool success);
  58
  59   // Handle tokens decoded by Whispernet.
  60   // TODO(ckehoe): Replace AudioToken with ReceivedToken.
  61   void ReceivedTokens(const std::vector<AudioToken>& tokens);
  62
  63   // Verifies that we can hear the audio we're playing.
  64   // This gets called every kAudioCheckIntervalMs milliseconds.
  65   void AudioCheck();
  66
  67   // This gets called every kPollTimerIntervalMs milliseconds
  68   // to poll the server for new messages.
  69   void PollForMessages();
  70
  71   // Send SubscribedMessages to the appropriate clients.
  72   void DispatchMessages(
  73       const google::protobuf::RepeatedPtrField<SubscribedMessage>&
  74       subscribed_messages);
  75
  76   // Belongs to the caller.
  77   CopresenceDelegate* const delegate_;
  78
  79   // We use a CancelableCallback here because Whispernet
  80   // does not provide a way to unregister its init callback.
  81   base::CancelableCallback<void(bool)> whispernet_init_callback_;
  82
  83   bool init_failed_;
  84
  85   // This order is required because each object
  86   // makes calls to those listed before it.
  87   scoped_ptr<CopresenceStateImpl> state_;
  88   scoped_ptr<RpcHandler> rpc_handler_;
  89   scoped_ptr<DirectiveHandler> directive_handler_;
  90   scoped_ptr<GCMHandler> gcm_handler_;
  91
  92   scoped_ptr<base::Timer> poll_timer_;
  93   scoped_ptr<base::Timer> audio_check_timer_;
  94
  95   TimedMap<std::string, google::protobuf::RepeatedPtrField<SubscribedMessage>>
  96   queued_messages_by_token_;
  97
  98   DISALLOW_COPY_AND_ASSIGN(CopresenceManagerImpl);
  99 };
 100
 101 }  // namespace copresence
 102
 103 #endif  // COMPONENTS_COPRESENCE_COPRESENCE_MANAGER_IMPL_H_