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// 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_COMPONENT_UPDATER_UPDATE_CHECKER_H_
#define COMPONENTS_COMPONENT_UPDATER_UPDATE_CHECKER_H_
#include <string>
#include <vector>
#include "base/callback.h"
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "components/component_updater/update_response.h"
#include "url/gurl.h"
class GURL;
namespace net {
class URLRequestContextGetter;
}
namespace component_updater {
class Configurator;
struct CrxUpdateItem;
class UpdateChecker {
public:
typedef base::Callback<void(const GURL& original_url,
int error,
const std::string& error_message,
const UpdateResponse::Results& results)>
UpdateCheckCallback;
virtual ~UpdateChecker() {}
// Initiates an update check for the |items_to_check|. |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.
virtual bool CheckForUpdates(
const std::vector<CrxUpdateItem*>& items_to_check,
const std::string& additional_attributes,
const UpdateCheckCallback& update_check_callback) = 0;
static scoped_ptr<UpdateChecker> Create(const Configurator& config);
protected:
UpdateChecker() {}
private:
DISALLOW_COPY_AND_ASSIGN(UpdateChecker);
};
} // namespace component_updater
#endif // COMPONENTS_COMPONENT_UPDATER_UPDATE_CHECKER_H_
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