components/copresence/handlers/directive_handler_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_HANDLERS_DIRECTIVE_HANDLER_IMPL_H_
   6 #define COMPONENTS_COPRESENCE_HANDLERS_DIRECTIVE_HANDLER_IMPL_H_
   7
   8 #include "components/copresence/handlers/directive_handler.h"
   9
  10 #include <map>
  11 #include <string>
  12 #include <vector>
  13
  14 #include "base/memory/scoped_ptr.h"
  15 #include "components/copresence/handlers/audio/audio_directive_handler_impl.h"
  16 #include "components/copresence/public/copresence_constants.h"
  17
  18 namespace copresence {
  19
  20 // The directive handler manages transmit and receive directives.
  21 class DirectiveHandlerImpl final : public DirectiveHandler {
  22  public:
  23   DirectiveHandlerImpl();
  24   explicit DirectiveHandlerImpl(
  25       const DirectivesCallback& update_directives_callback);
  26   DirectiveHandlerImpl(
  27       scoped_ptr<AudioDirectiveHandler> audio_handler);
  28   ~DirectiveHandlerImpl() override;
  29
  30   // DirectiveHandler overrides.
  31   void Start(audio_modem::WhispernetClient* whispernet_client,
  32              const audio_modem::TokensCallback& tokens_cb) override;
  33   void AddDirective(const Directive& directive) override;
  34   void RemoveDirectives(const std::string& op_id) override;
  35   const std::string
  36   GetCurrentAudioToken(audio_modem::AudioType type) const override;
  37   bool IsAudioTokenHeard(audio_modem::AudioType type) const override;
  38
  39  private:
  40   // Starts actually running a directive.
  41   void StartDirective(const std::string& op_id, const Directive& directive);
  42
  43   scoped_ptr<AudioDirectiveHandler> audio_handler_;
  44   std::map<std::string, std::vector<Directive>> pending_directives_;
  45
  46   bool is_started_;
  47
  48   DISALLOW_COPY_AND_ASSIGN(DirectiveHandlerImpl);
  49 };
  50
  51 }  // namespace copresence
  52
  53 #endif  // COMPONENTS_COPRESENCE_HANDLERS_DIRECTIVE_HANDLER_IMPL_H_