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      1 // Copyright (c) 2011 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_LOGIN_SIGNED_SETTINGS_HELPER_H_
      6 #define CHROME_BROWSER_CHROMEOS_LOGIN_SIGNED_SETTINGS_HELPER_H_
      7 #pragma once
      8 
      9 #include <string>
     10 
     11 #include "chrome/browser/chromeos/login/signed_settings.h"
     12 
     13 namespace enterprise_management {
     14 class PolicyFetchResponse;
     15 }  // namespace enterprise_management
     16 namespace em = enterprise_management;
     17 namespace chromeos {
     18 
     19 class SignedSettings;
     20 
     21 // Helper to serialize signed settings ops, provide unified callback interface,
     22 // and handle callbacks destruction before ops completion.
     23 class SignedSettingsHelper {
     24  public:
     25   class Callback {
     26    public:
     27     // Callback of CheckWhitelistOp. |success| indicates whether the op succeeds
     28     // or not. |email| is the email that is checked against.
     29     virtual void OnCheckWhitelistCompleted(
     30         SignedSettings::ReturnCode code,
     31         const std::string& email) {}
     32 
     33     // Callback of WhitelistOp that adds |email| to the whitelist.
     34     virtual void OnWhitelistCompleted(
     35         SignedSettings::ReturnCode code, const std::string& email) {}
     36 
     37     // Callback of WhitelistOp that removes |email| to the whitelist.
     38     virtual void OnUnwhitelistCompleted(
     39         SignedSettings::ReturnCode code, const std::string& email) {}
     40 
     41     // Callback of StorePropertyOp.
     42     virtual void OnStorePropertyCompleted(
     43         SignedSettings::ReturnCode code,
     44         const std::string& name,
     45         const std::string& value) {}
     46 
     47     // Callback of RetrievePropertyOp.
     48     virtual void OnRetrievePropertyCompleted(
     49         SignedSettings::ReturnCode code,
     50         const std::string& name,
     51         const std::string& value) {}
     52 
     53     // Callback of StorePolicyOp.
     54     virtual void OnStorePolicyCompleted(
     55         SignedSettings::ReturnCode code) {}
     56 
     57     // Callback of RetrievePolicyOp.
     58     virtual void OnRetrievePolicyCompleted(
     59         SignedSettings::ReturnCode code,
     60         const em::PolicyFetchResponse& policy) {}
     61   };
     62 
     63   // Class factory
     64   static SignedSettingsHelper* Get();
     65 
     66   // Functions to start signed settings ops.
     67   virtual void StartCheckWhitelistOp(const std::string& email,
     68                                      Callback* callback) = 0;
     69   virtual void StartWhitelistOp(const std::string& email,
     70                                 bool add_to_whitelist,
     71                                 Callback* callback) = 0;
     72   virtual void StartStorePropertyOp(const std::string& name,
     73                                     const std::string& value,
     74                                     Callback* callback) = 0;
     75   virtual void StartRetrieveProperty(const std::string& name,
     76                                      Callback* callback) = 0;
     77   virtual void StartStorePolicyOp(const em::PolicyFetchResponse& policy,
     78                                   Callback* callback) = 0;
     79   virtual void StartRetrievePolicyOp(Callback* callback) = 0;
     80 
     81   // Cancels all pending calls of given callback.
     82   virtual void CancelCallback(Callback* callback) = 0;
     83 
     84   class TestDelegate {
     85    public:
     86     virtual void OnOpCreated(SignedSettings* op) = 0;
     87     virtual void OnOpStarted(SignedSettings* op) = 0;
     88     virtual void OnOpCompleted(SignedSettings* op) = 0;
     89   };
     90 
     91 #if defined(UNIT_TEST)
     92   void set_test_delegate(TestDelegate* test_delegate) {
     93     test_delegate_ = test_delegate;
     94   }
     95 #endif  // defined(UNIT_TEST)
     96 
     97  protected:
     98   SignedSettingsHelper() : test_delegate_(NULL) {
     99   }
    100 
    101   TestDelegate* test_delegate_;
    102 };
    103 
    104 }  // namespace chromeos
    105 
    106 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SIGNED_SETTINGS_HELPER_H_
    107