chrome/browser/ui/views/profiles/dice_accounts_menu.h

// Copyright 2018 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_UI_VIEWS_PROFILES_DICE_ACCOUNTS_MENU_H_
#define CHROME_BROWSER_UI_VIEWS_PROFILES_DICE_ACCOUNTS_MENU_H_

#include <vector>

#include "base/callback_forward.h"
#include "base/optional.h"
#include "components/signin/core/browser/account_info.h"
#include "ui/gfx/image/image.h"
#include "ui/views/controls/menu/menu_delegate.h"
#include "ui/views/controls/menu/menu_item_view.h"
#include "ui/views/controls/menu/menu_runner.h"

namespace views {
class View;
}  // namespace views

// Menu allowing the user to select an account for enabling Sync when desktop
// identity consistency (aka DICE) is enabled.
class DiceAccountsMenu : public views::MenuDelegate {
 public:
  // Callback to enable Sync for |account| if available. |account| corresponds
  // to the account that was selected or |nullopt| if the "Use another account"
  // button was selected.
  using Callback =
      base::OnceCallback<void(const base::Optional<AccountInfo>& account)>;

  // Builds the accounts menu. Each account from |accounts| is placed in a menu
  // item showing the email and the corresponding icon from |icons|. The last
  // item in the accounts menu is the "Use another accounts" button. The spacing
  // within the items is increased to match bubble |HoverButton|s.
  DiceAccountsMenu(const std::vector<AccountInfo>& accounts,
                   Callback account_selected_callback);
  ~DiceAccountsMenu() override;

  // Shows the accounts menu below |anchor_view| and locks |menu_button| if
  // given. This method can only be called once.
  void Show(views::View* anchor_view, views::MenuButton* menu_button = nullptr);

  // A sign-out button is only added to the menu when this function is called.
  void SetSignOutButtonCallback(base::OnceClosure signout_callback);

 private:
  views::MenuItemView* BuildMenu();

  // Overridden from views::MenuDelegate:
  void ExecuteCommand(int id) override;
  void GetHorizontalIconMargins(int command_id,
                                int icon_size,
                                int* left_margin,
                                int* right_margin) const override;
  void GetLabelStyle(int id, LabelStyle* style) const override;

  std::unique_ptr<views::MenuRunner> runner_;

  std::vector<AccountInfo> accounts_;
  Callback account_selected_callback_;
  base::OnceClosure signout_callback_;

  DISALLOW_COPY_AND_ASSIGN(DiceAccountsMenu);
};

#endif  // CHROME_BROWSER_UI_VIEWS_PROFILES_DICE_ACCOUNTS_MENU_H_