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- // Copyright 2016 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_NTP_SNIPPETS_REMOTE_REMOTE_SUGGESTIONS_STATUS_SERVICE_H_
- #define COMPONENTS_NTP_SNIPPETS_REMOTE_REMOTE_SUGGESTIONS_STATUS_SERVICE_H_
- #include "base/callback.h"
- #include "base/scoped_observation.h"
- #include "components/prefs/pref_change_registrar.h"
- namespace ntp_snippets {
- enum class RemoteSuggestionsStatus : int {
- // Suggestions are enabled and the user is signed in.
- ENABLED_AND_SIGNED_IN,
- // Suggestions are enabled; the user is signed out (sign-in is not required).
- ENABLED_AND_SIGNED_OUT,
- // Suggestions have been disabled as part of the service configuration.
- EXPLICITLY_DISABLED,
- };
- // Aggregates data from preferences and signin to notify the provider of
- // relevant changes in their states.
- class RemoteSuggestionsStatusService {
- public:
- using StatusChangeCallback =
- base::RepeatingCallback<void(RemoteSuggestionsStatus old_status,
- RemoteSuggestionsStatus new_status)>;
- virtual ~RemoteSuggestionsStatusService() = default;
- // Starts listening for changes from the dependencies. |callback| will be
- // called when a significant change in state is detected.
- virtual void Init(const StatusChangeCallback& callback) = 0;
- // To be called when the signin state changed. Will compute the new
- // state considering the initialisation configuration and the preferences,
- // and notify via the registered callback if appropriate.
- virtual void OnSignInStateChanged(bool has_signed_in) = 0;
- };
- } // namespace ntp_snippets
- #endif // COMPONENTS_NTP_SNIPPETS_REMOTE_REMOTE_SUGGESTIONS_STATUS_SERVICE_H_
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