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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/translate/languages_menu_model.h"
      6 
      7 #include "base/metrics/histogram.h"
      8 #include "chrome/browser/translate/translate_infobar_delegate.h"
      9 
     10 LanguagesMenuModel::LanguagesMenuModel(
     11     TranslateInfoBarDelegate* translate_delegate,
     12     LanguageType language_type)
     13     : ALLOW_THIS_IN_INITIALIZER_LIST(ui::SimpleMenuModel(this)),
     14       translate_infobar_delegate_(translate_delegate),
     15       language_type_(language_type) {
     16   for (size_t i = 0; i < translate_delegate->GetLanguageCount(); ++i) {
     17     AddCheckItem(static_cast<int>(i),
     18                  translate_delegate->GetLanguageDisplayableNameAt(i));
     19   }
     20 }
     21 
     22 LanguagesMenuModel::~LanguagesMenuModel() {
     23 }
     24 
     25 bool LanguagesMenuModel::IsCommandIdChecked(int command_id) const {
     26   return static_cast<size_t>(command_id) == ((language_type_ == ORIGINAL) ?
     27       translate_infobar_delegate_->original_language_index() :
     28       translate_infobar_delegate_->target_language_index());
     29 }
     30 
     31 bool LanguagesMenuModel::IsCommandIdEnabled(int command_id) const {
     32   // Prevent the same language from being selectable in original and target.
     33   return static_cast<size_t>(command_id) != ((language_type_ == ORIGINAL) ?
     34       translate_infobar_delegate_->target_language_index() :
     35       translate_infobar_delegate_->original_language_index());
     36 }
     37 
     38 bool LanguagesMenuModel::GetAcceleratorForCommandId(
     39     int command_id,
     40     ui::Accelerator* accelerator) {
     41   return false;
     42 }
     43 
     44 void LanguagesMenuModel::ExecuteCommand(int command_id) {
     45   size_t command_id_size_t = static_cast<size_t>(command_id);
     46   if (language_type_ == ORIGINAL) {
     47     UMA_HISTOGRAM_COUNTS("Translate.ModifyOriginalLang", 1);
     48     translate_infobar_delegate_->SetOriginalLanguage(command_id_size_t);
     49     return;
     50   }
     51   UMA_HISTOGRAM_COUNTS("Translate.ModifyTargetLang", 1);
     52   translate_infobar_delegate_->SetTargetLanguage(command_id_size_t);
     53 }
     54