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      1 // Copyright 2013 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_UI_AUTOFILL_ACCOUNT_CHOOSER_MODEL_H_
      6 #define CHROME_BROWSER_UI_AUTOFILL_ACCOUNT_CHOOSER_MODEL_H_
      7 
      8 #include <string>
      9 #include <vector>
     10 
     11 #include "base/basictypes.h"
     12 #include "base/compiler_specific.h"
     13 #include "base/strings/string16.h"
     14 #include "components/autofill/core/browser/autofill_client.h"
     15 #include "ui/base/models/simple_menu_model.h"
     16 
     17 class AutofillMetrics;
     18 class Profile;
     19 
     20 namespace autofill {
     21 
     22 class AccountChooserModel;
     23 
     24 // A delegate interface to allow the AccountChooserModel to inform its owner
     25 // of changes.
     26 class AccountChooserModelDelegate {
     27  public:
     28   virtual ~AccountChooserModelDelegate();
     29 
     30   // Called when the active account has changed.
     31   virtual void AccountChoiceChanged() = 0;
     32 
     33   // Called when the user selects the "add account" menu item.
     34   virtual void AddAccount() = 0;
     35 
     36   // Called when the account chooser UI needs to be updated.
     37   virtual void UpdateAccountChooserView() = 0;
     38 };
     39 
     40 // A menu model for the account chooser. This allows users to switch between
     41 // Online Wallet accounts and local Autofill data.
     42 // Terminology:
     43 // - "Active Wallet account": the account used for communications with the
     44 // Online Wallet service. There may be multiple signed-in accounts, but at any
     45 // point of time at most one of is active.
     46 class AccountChooserModel : public ui::SimpleMenuModel,
     47                             public ui::SimpleMenuModel::Delegate {
     48  public:
     49   // |disable_wallet| overrides the starting value, which is normally set by a
     50   // pref.
     51   AccountChooserModel(AccountChooserModelDelegate* delegate,
     52                       Profile* profile,
     53                       bool disable_wallet,
     54                       const AutofillMetrics& metric_logger);
     55   virtual ~AccountChooserModel();
     56 
     57   // ui::SimpleMenuModel::Delegate implementation.
     58   virtual bool IsCommandIdChecked(int command_id) const OVERRIDE;
     59   virtual bool IsCommandIdEnabled(int command_id) const OVERRIDE;
     60   virtual bool GetAcceleratorForCommandId(
     61       int command_id,
     62       ui::Accelerator* accelerator) OVERRIDE;
     63   virtual void ExecuteCommand(int command_id, int event_flags) OVERRIDE;
     64 
     65   // Sets the selection to the given wallet account.
     66   void SelectWalletAccount(size_t user_index);
     67 
     68   // Sets the selection to the local Autofill data.
     69   void SelectUseAutofill();
     70 
     71   // Returns true if there are any accounts for the user to choose from.
     72   bool HasAccountsToChoose() const;
     73 
     74   // Sets the name of the accounts used to communicate with the Online Wallet
     75   // and switches |checked_item_| to point to the menu item for the account.
     76   void SetWalletAccounts(const std::vector<std::string>& accounts,
     77                          size_t active_index);
     78 
     79   // Clears the set of accounts used to communicate with the Online Wallet.
     80   // Any Wallet error automatically clears the currently active account name.
     81   void ClearWalletAccounts();
     82 
     83   // Returns the name of the currently active account, or an empty string.
     84   // The currently active account may not be the checked item in the menu, but
     85   // will be the most recently checked wallet account item.
     86   base::string16 GetActiveWalletAccountName() const;
     87 
     88   // Returns the index of the account that is currently active.
     89   size_t GetActiveWalletAccountIndex() const;
     90 
     91   // Disables all Wallet accounts and switches to the local Autofill data.
     92   // Should be called when the Wallet server returns an error.
     93   void SetHadWalletError();
     94 
     95   // Switches the dialog to the local Autofill data.
     96   // Should be called when the Online Wallet sign-in attempt has failed.
     97   void SetHadWalletSigninError();
     98 
     99   // Returns true if the selected account is an Online Wallet account.
    100   bool WalletIsSelected() const;
    101 
    102  protected:
    103   // Command IDs of the items in this menu; protected for the tests.
    104   // The menu item for adding a new wallet account (for multilogin).
    105   static const int kWalletAddAccountId;
    106   // kAutofillItemId is "Pay without the Wallet" (local autofill data).
    107   static const int kAutofillItemId;
    108   // Wallet account menu item IDs are this value + the account index.
    109   static const int kWalletAccountsStartId;
    110 
    111  private:
    112   // Reconstructs the set of menu items.
    113   void ReconstructMenuItems();
    114 
    115   // Switches to the account option represented by |command_id|.
    116   void DoAccountSwitch(int command_id);
    117 
    118   AccountChooserModelDelegate* delegate_;
    119 
    120   // The command id of the currently selected item.
    121   int checked_item_;
    122 
    123   // Whether there has been a Wallet error.
    124   bool had_wallet_error_;
    125 
    126   // For logging UMA metrics.
    127   const AutofillMetrics& metric_logger_;
    128 
    129   // The names (emails) of the signed in accounts, gotten from the
    130   // Online Wallet service.
    131   std::vector<std::string> wallet_accounts_;
    132 
    133   DISALLOW_COPY_AND_ASSIGN(AccountChooserModel);
    134 };
    135 
    136 }  // namespace autofill
    137 
    138 #endif  // CHROME_BROWSER_UI_AUTOFILL_ACCOUNT_CHOOSER_MODEL_H_
    139