| // 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_UPDATE_CLIENT_UPDATE_CHECKER_H_ |
| #define COMPONENTS_UPDATE_CLIENT_UPDATE_CHECKER_H_ |
| |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "base/callback.h" |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "components/update_client/component.h" |
| #include "components/update_client/update_response.h" |
| #include "url/gurl.h" |
| |
| namespace update_client { |
| |
| class Configurator; |
| class PersistedData; |
| |
| class UpdateChecker { |
| public: |
| using UpdateCheckCallback = |
| base::Callback<void(int error, int retry_after_sec)>; |
| |
| using Factory = std::unique_ptr<UpdateChecker> (*)( |
| const scoped_refptr<Configurator>& config, |
| PersistedData* persistent); |
| |
| virtual ~UpdateChecker() = default; |
| |
| // Initiates an update check for the components specified by their ids. |
| // |additional_attributes| provides a way to customize the <request> element. |
| // This value is inserted as-is, therefore it must be well-formed as an |
| // XML attribute string. |
| // On completion, the state of |components| is mutated as required by the |
| // server response received. |
| virtual bool CheckForUpdates( |
| const std::vector<std::string>& ids_to_check, |
| const IdToComponentPtrMap& components, |
| const std::string& additional_attributes, |
| bool enabled_component_updates, |
| const UpdateCheckCallback& update_check_callback) = 0; |
| |
| static std::unique_ptr<UpdateChecker> Create( |
| const scoped_refptr<Configurator>& config, |
| PersistedData* persistent); |
| |
| protected: |
| UpdateChecker() = default; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(UpdateChecker); |
| }; |
| |
| } // namespace update_client |
| |
| #endif // COMPONENTS_UPDATE_CLIENT_UPDATE_CHECKER_H_ |