Adding CopresenceState

components/copresence/handlers/audio/audio_directive_handler_impl.h

 // Copyright 2014 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 COMPONENTS_COPRESENCE_HANDLERS_AUDIO_AUDIO_DIRECTIVE_HANDLER_IMPL_H_
 #define COMPONENTS_COPRESENCE_HANDLERS_AUDIO_AUDIO_DIRECTIVE_HANDLER_IMPL_H_
 
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "components/copresence/handlers/audio/audio_directive_handler.h"
+#include "components/copresence/public/copresence_constants.h"
 
 namespace base {
 class TimeTicks;
 class Timer;
 }
 
 namespace media {
 class AudioBusRefCounted;
 }
 
 namespace copresence {
 
 class AudioDirectiveList;
 class TickClockRefCounted;
 
 // The AudioDirectiveHandler handles audio transmit and receive instructions.
 // TODO(rkc): Currently since WhispernetClient can only have one token encoded
 // callback at a time, we need to have both the audible and inaudible in this
 // class. Investigate a better way to do this; a few options are abstracting
 // out token encoding to a separate class, or allowing whispernet to have
 // multiple callbacks for encoded tokens being sent back and have two versions
 // of this class.
 class AudioDirectiveHandlerImpl final : public AudioDirectiveHandler {
  public:
-  AudioDirectiveHandlerImpl();
-  AudioDirectiveHandlerImpl(scoped_ptr<AudioManager> audio_manager,
-                            scoped_ptr<base::Timer> timer,
-                            const scoped_refptr<TickClockRefCounted>& clock);
+  explicit AudioDirectiveHandlerImpl(
+      const DirectivesCallback& update_directives_callback);
+  AudioDirectiveHandlerImpl(
+      const DirectivesCallback& update_directives_callback,
+      scoped_ptr<AudioManager> audio_manager,
+      scoped_ptr<base::Timer> timer,
+      const scoped_refptr<TickClockRefCounted>& clock);
 
   ~AudioDirectiveHandlerImpl();

[xiyuan, 2014/12/18 18:10:52]

nit: override?

[Charlie, 2014/12/19 03:53:33]

Done.

 
   // AudioDirectiveHandler overrides:
   void Initialize(WhispernetClient* whispernet_client,
                   const TokensCallback& tokens_cb) override;
-  void AddInstruction(const copresence::TokenInstruction& instruction,
-                      const std::string& op_id,
-                      base::TimeDelta ttl) override;
+  void AddInstruction(const Directive& directive,
+                      const std::string& op_id) override;
   void RemoveInstructions(const std::string& op_id) override;
   const std::string PlayingToken(AudioType type) const override;
   bool IsPlayingTokenHeard(AudioType type) const override;
 
  private:
   // Processes the next active instruction,
   // updating our audio manager state accordingly.
   void ProcessNextInstruction();
 
   // Returns the time that an instruction expires at. This will always return
   // the earliest expiry time among all the active receive and transmit
   // instructions. If we don't have any active instructions, returns false.
   bool GetNextInstructionExpiry(base::TimeTicks* next_event);
 
+  DirectivesCallback update_directives_callback_;
   scoped_ptr<AudioManager> audio_manager_;
-
   scoped_ptr<base::Timer> audio_event_timer_;
   scoped_refptr<TickClockRefCounted> clock_;
 
   // Lists of transmits and receives, for both audible and inaudible tokens.
   // AUDIBLE = element 0, INAUDIBLE = element 1 (see copresence_constants.h).
   ScopedVector<AudioDirectiveList> transmits_lists_;
   ScopedVector<AudioDirectiveList> receives_lists_;
 
-
   DISALLOW_COPY_AND_ASSIGN(AudioDirectiveHandlerImpl);
 };
 
 }  // namespace copresence
 
 #endif  // COMPONENTS_COPRESENCE_HANDLERS_AUDIO_AUDIO_DIRECTIVE_HANDLER_IMPL_H_