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      1 // Copyright 2014 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_SCREENS_CHROME_USER_SELECTION_SCREEN_H_
      6 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_CHROME_USER_SELECTION_SCREEN_H_
      7 
      8 #include <map>
      9 #include <string>
     10 #include <vector>
     11 
     12 #include "base/compiler_specific.h"
     13 #include "base/macros.h"
     14 #include "base/memory/weak_ptr.h"
     15 #include "chrome/browser/chromeos/login/screens/user_selection_screen.h"
     16 #include "chrome/browser/chromeos/policy/device_local_account_policy_service.h"
     17 
     18 namespace chromeos {
     19 
     20 class ChromeUserSelectionScreen
     21     : public UserSelectionScreen,
     22       public policy::DeviceLocalAccountPolicyService::Observer {
     23  public:
     24   ChromeUserSelectionScreen();
     25   virtual ~ChromeUserSelectionScreen();
     26 
     27   // UserSelectionScreen:
     28   virtual void Init(const user_manager::UserList& users,
     29                     bool show_guest) OVERRIDE;
     30   virtual void SendUserList() OVERRIDE;
     31 
     32   // policy::DeviceLocalAccountPolicyService::Observer:
     33   virtual void OnPolicyUpdated(const std::string& user_id) OVERRIDE;
     34   virtual void OnDeviceLocalAccountsChanged() OVERRIDE;
     35 
     36  private:
     37   // Check whether the display name set by policy for a public session has
     38   // changed and if so, notify the UI.
     39   void CheckForPublicSessionDisplayNameChange(
     40       policy::DeviceLocalAccountPolicyBroker* broker);
     41 
     42   // Check whether the list of recommended locales set by policy for a public
     43   // session has changed and if so, notify the UI.
     44   void CheckForPublicSessionLocalePolicyChange(
     45       policy::DeviceLocalAccountPolicyBroker* broker);
     46 
     47   // Notify the UI that the display name for a public session has changed,
     48   // taking the display name from the |User| owned by |UserManager|.
     49   void SetPublicSessionDisplayName(const std::string& user_id);
     50 
     51   // Send an updated list of locales for a public session to the UI, consisting
     52   // of the |recommended_locales| followed by all other available locales.
     53   void SetPublicSessionLocales(
     54       const std::string& user_id,
     55       const std::vector<std::string>& recommended_locales);
     56 
     57   bool handler_initialized_;
     58 
     59   policy::DeviceLocalAccountPolicyService* device_local_account_policy_service_;
     60 
     61   // Map from public session user IDs to their display names set by policy.
     62   typedef std::map<std::string, std::string> DisplayNamesMap;
     63   DisplayNamesMap public_session_display_names_;
     64 
     65   base::WeakPtrFactory<ChromeUserSelectionScreen> weak_factory_;
     66 
     67   DISALLOW_COPY_AND_ASSIGN(ChromeUserSelectionScreen);
     68 };
     69 
     70 }  // namespace chromeos
     71 
     72 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_CHROME_USER_SELECTION_SCREEN_H_
     73