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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CHROME_BROWSER_CHROMEOS_GDATA_GDATA_OPERATION_RUNNER_H_ | |
| 6 #define CHROME_BROWSER_CHROMEOS_GDATA_GDATA_OPERATION_RUNNER_H_ | |
| 7 | |
| 8 #include <string> | |
| 9 | |
| 10 #include "base/basictypes.h" | |
| 11 #include "base/memory/scoped_ptr.h" | |
| 12 #include "base/memory/weak_ptr.h" | |
| 13 #include "chrome/browser/chromeos/gdata/gdata_auth_service.h" | |
| 14 #include "chrome/browser/chromeos/gdata/gdata_errorcode.h" | |
| 15 | |
| 16 class Profile; | |
| 17 | |
| 18 namespace gdata { | |
| 19 | |
| 20 class GDataOperationInterface; | |
| 21 class GDataOperationRegistry; | |
| 22 | |
| 23 // Helper class that runs GDataOperationInterface objects, handling retries and | |
| 24 // authentication. | |
| 25 class GDataOperationRunner : public GDataAuthService::Observer { | |
| 26 public: | |
| 27 explicit GDataOperationRunner(Profile* profile); | |
| 28 virtual ~GDataOperationRunner(); | |
| 29 | |
| 30 GDataAuthService* auth_service() { return auth_service_.get(); } | |
| 31 GDataOperationRegistry* operation_registry() { | |
| 32 return operation_registry_.get(); | |
| 33 } | |
| 34 | |
| 35 // Prepares the object for use. | |
| 36 virtual void Initialize(); | |
| 37 | |
| 38 // Cancels all in-flight operations. | |
| 39 void CancelAll(); | |
| 40 | |
| 41 // Authenticates the user by fetching the auth token as needed. |callback| | |
| 42 // will be run with the error code and the auth token, on the thread this | |
| 43 // function is run. | |
| 44 void Authenticate(const AuthStatusCallback& callback); | |
| 45 | |
| 46 // Starts an operation implementing the GDataOperationInterface interface, and | |
| 47 // makes the operation retry upon authentication failures by calling back to | |
| 48 // RetryOperation. | |
| 49 void StartOperationWithRetry(GDataOperationInterface* operation); | |
| 50 | |
| 51 // Starts an operation implementing the GDataOperationInterface interface. | |
| 52 void StartOperation(GDataOperationInterface* operation); | |
| 53 | |
| 54 // Called when the authentication token is refreshed. | |
| 55 void OnOperationAuthRefresh(GDataOperationInterface* operation, | |
| 56 GDataErrorCode error, | |
| 57 const std::string& auth_token); | |
| 58 | |
| 59 // Clears any authentication token and retries the operation, which | |
| 60 // forces an authentication token refresh. | |
| 61 void RetryOperation(GDataOperationInterface* operation); | |
| 62 | |
| 63 private: | |
| 64 // GDataAuthService::Observer override. | |
| 65 virtual void OnOAuth2RefreshTokenChanged() OVERRIDE; | |
| 66 | |
| 67 Profile* profile_; // not owned | |
| 68 | |
| 69 scoped_ptr<GDataAuthService> auth_service_; | |
| 70 scoped_ptr<GDataOperationRegistry> operation_registry_; | |
| 71 | |
| 72 // Note: This should remain the last member so it'll be destroyed and | |
| 73 // invalidate its weak pointers before any other members are destroyed. | |
| 74 base::WeakPtrFactory<GDataOperationRunner> weak_ptr_factory_; | |
| 75 | |
| 76 DISALLOW_COPY_AND_ASSIGN(GDataOperationRunner); | |
| 77 }; | |
| 78 | |
| 79 } // namespace gdata | |
| 80 | |
| 81 #endif // CHROME_BROWSER_CHROMEOS_GDATA_GDATA_OPERATION_RUNNER_H_ | |
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