| // Copyright 2017 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. |
| |
| #include "chrome/browser/search/one_google_bar/one_google_bar_service.h" |
| |
| #include <utility> |
| |
| #include "base/bind.h" |
| #include "base/callback.h" |
| #include "chrome/browser/search/one_google_bar/one_google_bar_loader.h" |
| #include "services/identity/public/cpp/identity_manager.h" |
| |
| class OneGoogleBarService::SigninObserver |
| : public identity::IdentityManager::Observer { |
| public: |
| using SigninStatusChangedCallback = base::Closure; |
| |
| SigninObserver(identity::IdentityManager* identity_manager, |
| const SigninStatusChangedCallback& callback) |
| : identity_manager_(identity_manager), callback_(callback) { |
| identity_manager_->AddObserver(this); |
| } |
| |
| ~SigninObserver() override { identity_manager_->RemoveObserver(this); } |
| |
| private: |
| // IdentityManager::Observer implementation. |
| void OnAccountsInCookieUpdated( |
| const std::vector<AccountInfo>& accounts) override { |
| callback_.Run(); |
| } |
| |
| identity::IdentityManager* const identity_manager_; |
| SigninStatusChangedCallback callback_; |
| }; |
| |
| OneGoogleBarService::OneGoogleBarService( |
| identity::IdentityManager* identity_manager, |
| std::unique_ptr<OneGoogleBarLoader> loader) |
| : loader_(std::move(loader)), |
| signin_observer_(std::make_unique<SigninObserver>( |
| identity_manager, |
| base::Bind(&OneGoogleBarService::SigninStatusChanged, |
| base::Unretained(this)))) {} |
| |
| OneGoogleBarService::~OneGoogleBarService() = default; |
| |
| void OneGoogleBarService::Shutdown() { |
| for (auto& observer : observers_) { |
| observer.OnOneGoogleBarServiceShuttingDown(); |
| } |
| |
| signin_observer_.reset(); |
| DCHECK(!observers_.might_have_observers()); |
| } |
| |
| void OneGoogleBarService::Refresh() { |
| loader_->Load(base::BindOnce(&OneGoogleBarService::OneGoogleBarDataLoaded, |
| base::Unretained(this))); |
| } |
| |
| void OneGoogleBarService::AddObserver(OneGoogleBarServiceObserver* observer) { |
| observers_.AddObserver(observer); |
| } |
| |
| void OneGoogleBarService::RemoveObserver( |
| OneGoogleBarServiceObserver* observer) { |
| observers_.RemoveObserver(observer); |
| } |
| |
| void OneGoogleBarService::SigninStatusChanged() { |
| // If we have cached data, clear it and notify observers. |
| if (one_google_bar_data_.has_value()) { |
| one_google_bar_data_ = base::nullopt; |
| NotifyObservers(); |
| } |
| } |
| |
| void OneGoogleBarService::OneGoogleBarDataLoaded( |
| OneGoogleBarLoader::Status status, |
| const base::Optional<OneGoogleBarData>& data) { |
| // In case of transient errors, keep our cached data (if any), but still |
| // notify observers of the finished load (attempt). |
| if (status != OneGoogleBarLoader::Status::TRANSIENT_ERROR) { |
| one_google_bar_data_ = data; |
| } |
| NotifyObservers(); |
| } |
| |
| void OneGoogleBarService::NotifyObservers() { |
| for (auto& observer : observers_) { |
| observer.OnOneGoogleBarDataUpdated(); |
| } |
| } |