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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 #include "chrome/browser/chromeos/login/keyboard_switch_menu.h"
      6 
      7 #include "base/i18n/rtl.h"
      8 #include "base/utf_string_conversions.h"
      9 #include "chrome/browser/chromeos/cros/cros_library.h"
     10 #include "chrome/browser/chromeos/input_method/input_method_util.h"
     11 #include "chrome/browser/chromeos/status/status_area_host.h"
     12 #include "grit/generated_resources.h"
     13 #include "ui/base/l10n/l10n_util.h"
     14 #include "views/controls/button/menu_button.h"
     15 #include "views/widget/widget_gtk.h"
     16 
     17 namespace chromeos {
     18 
     19 KeyboardSwitchMenu::KeyboardSwitchMenu()
     20     : InputMethodMenu(NULL /* pref_service */,
     21                       StatusAreaHost::kLoginMode,
     22                       true /* for_out_of_box_experience_dialog */) {
     23 }
     24 
     25 ////////////////////////////////////////////////////////////////////////////////
     26 // InputMethodMenu::InputMethodMenuHost implementation.
     27 void KeyboardSwitchMenu::UpdateUI(const std::string& input_method_id,
     28                                   const std::wstring& name,
     29                                   const std::wstring& tooltip,
     30                                   size_t num_active_input_methods) {
     31   // Update all view hierarchies so that the new input method name is shown in
     32   // the menu button.
     33   views::Widget::NotifyLocaleChanged();
     34 }
     35 
     36 ////////////////////////////////////////////////////////////////////////////////
     37 // views::ViewMenuDelegate implementation.
     38 void KeyboardSwitchMenu::RunMenu(views::View* source, const gfx::Point& pt) {
     39   PrepareForMenuOpen();
     40   gfx::Point new_pt(pt);
     41   views::MenuButton* button = static_cast<views::MenuButton*>(source);
     42   // Keyboard switch menu is aligned on left by default.
     43   int reverse_offset = button->width() + button->menu_offset().x() * 2;
     44   if (base::i18n::IsRTL()) {
     45     new_pt.set_x(pt.x() + reverse_offset);
     46   } else {
     47     new_pt.set_x(pt.x() - reverse_offset);
     48   }
     49   input_method_menu().RunMenuAt(new_pt, views::Menu2::ALIGN_TOPLEFT);
     50 }
     51 
     52 string16 KeyboardSwitchMenu::GetCurrentKeyboardName() const {
     53   const int count = GetItemCount();
     54   for (int i = 0; i < count; ++i) {
     55     if (IsItemCheckedAt(i))
     56       return GetLabelAt(i);
     57   }
     58   VLOG(1) << "The input method menu is not ready yet. Show the display "
     59           << "name of the current input method";
     60   InputMethodLibrary* library = CrosLibrary::Get()->GetInputMethodLibrary();
     61   return UTF8ToUTF16(input_method::GetInputMethodDisplayNameFromId(
     62       library->current_input_method().id));
     63 }
     64 
     65 }  // namespace chromeos
     66