| // 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_COPRESENCE_STATE_IMPL_H_ |
| #define COMPONENTS_COPRESENCE_COPRESENCE_STATE_IMPL_H_ |
| |
| #include <map> |
| #include <string> |
| #include <vector> |
| |
| #include "base/macros.h" |
| #include "base/observer_list.h" |
| #include "components/copresence/proto/enums.pb.h" |
| #include "components/copresence/public/copresence_state.h" |
| |
| namespace copresence { |
| |
| class Directive; |
| struct ReceivedToken; |
| struct TransmittedToken; |
| |
| // This class tracks the internal state of the copresence component |
| // for debugging purposes. CopresenceState only allows observation, |
| // but this class accepts updates from elsewhere in the component. |
| class CopresenceStateImpl final : public CopresenceState { |
| public: |
| CopresenceStateImpl(); |
| ~CopresenceStateImpl() override; |
| |
| // CopresenceState overrides. |
| void AddObserver(CopresenceObserver* observer) override; |
| void RemoveObserver(CopresenceObserver* observer) override; |
| const std::vector<Directive>& active_directives() const override; |
| const std::map<std::string, TransmittedToken>& |
| transmitted_tokens() const override; |
| const std::map<std::string, ReceivedToken>& |
| received_tokens() const override; |
| |
| // Update the current active directives. |
| void UpdateDirectives(const std::vector<Directive>& directives); |
| |
| // Report transmitting a token. |
| void UpdateTransmittedToken(const TransmittedToken& token); |
| |
| // Report receiving a token. |
| void UpdateReceivedToken(const ReceivedToken& token); |
| |
| // Report the token state from the server. |
| void UpdateTokenStatus(const std::string& token_id, TokenStatus status); |
| |
| private: |
| // Reconcile the |active_directives_| against |transmitted_tokens_|. |
| void UpdateTransmittingTokens(); |
| |
| std::vector<Directive> active_directives_; |
| |
| // TODO(ckehoe): When we support more mediums, separate tokens by medium. |
| // Otherwise tokens from different mediums could overwrite each other. |
| // TODO(ckehoe): Limit the number of tokens stored. |
| std::map<std::string, TransmittedToken> transmitted_tokens_; |
| std::map<std::string, ReceivedToken> received_tokens_; |
| |
| base::ObserverList<CopresenceObserver> observers_; |
| |
| DISALLOW_COPY_AND_ASSIGN(CopresenceStateImpl); |
| }; |
| |
| } // namespace copresence |
| |
| #endif // COMPONENTS_COPRESENCE_COPRESENCE_STATE_IMPL_H_ |