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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_GOOGLE_APIS_OPERATION_RUNNER_H_
#define CHROME_BROWSER_GOOGLE_APIS_OPERATION_RUNNER_H_
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "chrome/browser/google_apis/gdata_errorcode.h"
#include "chrome/browser/google_apis/operations_base.h"
class Profile;
namespace google_apis {
class AuthenticatedOperationInterface;
class AuthService;
class OperationRegistry;
// Helper class that runs AuthenticatedOperationInterface objects, handling
// retries and authentication.
class OperationRunner {
public:
OperationRunner(Profile* profile, const std::vector<std::string>& scopes);
virtual ~OperationRunner();
AuthService* auth_service() { return auth_service_.get(); }
OperationRegistry* 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 AuthenticatedOperationInterface
// interface, and makes the operation retry upon authentication failures by
// calling back to RetryOperation.
void StartOperationWithRetry(AuthenticatedOperationInterface* operation);
// Starts an operation implementing the AuthenticatedOperationInterface
// interface.
void StartOperation(AuthenticatedOperationInterface* operation);
// Called when the authentication token is refreshed.
void OnOperationAuthRefresh(
const base::WeakPtr<AuthenticatedOperationInterface>& operation,
GDataErrorCode error,
const std::string& auth_token);
// Clears any authentication token and retries the operation, which
// forces an authentication token refresh.
void RetryOperation(AuthenticatedOperationInterface* operation);
private:
Profile* profile_; // not owned
scoped_ptr<AuthService> auth_service_;
scoped_ptr<OperationRegistry> operation_registry_;
// Note: This should remain the last member so it'll be destroyed and
// invalidate its weak pointers before any other members are destroyed.
base::WeakPtrFactory<OperationRunner> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(OperationRunner);
};
} // namespace google_apis
#endif // CHROME_BROWSER_GOOGLE_APIS_OPERATION_RUNNER_H_
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