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// Copyright (c) 2012 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 CHROME_BROWSER_CHROMEOS_GDATA_GDATA_OPERATION_RUNNER_H_
#define CHROME_BROWSER_CHROMEOS_GDATA_GDATA_OPERATION_RUNNER_H_
#pragma once
#include <string>
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "chrome/browser/chromeos/gdata/gdata_auth_service.h"
#include "chrome/browser/chromeos/gdata/gdata_errorcode.h"
#include "chrome/browser/chromeos/gdata/gdata_params.h"
class Profile;
namespace gdata {
class GDataOperationInterface;
class GDataOperationRegistry;
// Helper class that runs GDataOperationInterface objects, handling retries and
// authentication.
class GDataOperationRunner : public GDataAuthService::Observer {
public:
explicit GDataOperationRunner(Profile* profile);
virtual ~GDataOperationRunner();
GDataAuthService* auth_service() { return auth_service_.get(); }
GDataOperationRegistry* operation_registry() {
return operation_registry_.get();
}
// Prepares the object for use.
virtual void Initialize();
// Cancels all in-flight operations.
void CancelAll();
// Authenticates the user by fetching the auth token as needed. |callback|
// will be run with the error code and the auth token, on the thread this
// function is run.
void Authenticate(const AuthStatusCallback& callback);
// Starts an operation implementing the GDataOperationInterface interface, and
// makes the operation retry upon authentication failures by calling back to
// RetryOperation.
void StartOperationWithRetry(GDataOperationInterface* operation);
// Starts an operation implementing the GDataOperationInterface interface.
void StartOperation(GDataOperationInterface* operation);
// Called when the authentication token is refreshed.
void OnOperationAuthRefresh(GDataOperationInterface* operation,
GDataErrorCode error,
const std::string& auth_token);
// Clears any authentication token and retries the operation, which
// forces an authentication token refresh.
void RetryOperation(GDataOperationInterface* operation);
private:
// GDataAuthService::Observer override.
virtual void OnOAuth2RefreshTokenChanged() OVERRIDE;
Profile* profile_; // not owned
scoped_ptr<GDataAuthService> auth_service_;
scoped_ptr<GDataOperationRegistry> operation_registry_;
base::WeakPtrFactory<GDataOperationRunner> weak_ptr_factory_;
base::WeakPtr<GDataOperationRunner> weak_ptr_bound_to_ui_thread_;
DISALLOW_COPY_AND_ASSIGN(GDataOperationRunner);
};
} // namespace gdata
#endif // CHROME_BROWSER_CHROMEOS_GDATA_GDATA_OPERATION_RUNNER_H_
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