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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/global_media_controls/live_translate_combobox_model.h"
#include <vector>
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/profiles/profile.h"
#include "components/live_caption/pref_names.h"
#include "components/prefs/pref_service.h"
#include "ui/base/l10n/l10n_util.h"
namespace {
bool LanguageSupportsTranslate(translate::TranslateLanguageInfo language) {
// The language must be marked as translatable.
if (!language.supports_translate) {
return false;
}
if (language.code == "zh-CN" || language.code == "zh-TW") {
// In Translate, general Chinese is not used, and the sub code is
// necessary as a language code for the Translate server.
return true;
}
if (language.code == "mni-Mtei") {
// Translate uses the Meitei Mayek script for Manipuri.
return true;
}
const auto& base_language = l10n_util::GetLanguage(language.code);
if (base_language == "nb") {
// Norwegian Bokmål (nb) is listed as supporting translate but the
// Translate server only supports Norwegian (no).
return false;
}
// For all other languages only base languages are supported.
return language.code == base_language;
}
} // namespace
LiveTranslateComboboxModel::LiveTranslateComboboxModel(Profile* profile)
: profile_(profile) {
std::vector<translate::TranslateLanguageInfo> language_list;
translate::TranslatePrefs::GetLanguageInfoList(
g_browser_process->GetApplicationLocale(), true, &language_list);
for (const auto& language : language_list) {
if (LanguageSupportsTranslate(language)) {
languages_.push_back(language);
}
}
}
LiveTranslateComboboxModel::~LiveTranslateComboboxModel() = default;
size_t LiveTranslateComboboxModel::GetItemCount() const {
return languages_.size();
}
std::u16string LiveTranslateComboboxModel::GetItemAt(size_t index) const {
return base::UTF8ToUTF16(languages_[index].display_name);
}
std::optional<size_t> LiveTranslateComboboxModel::GetDefaultIndex() const {
std::string target_language =
profile_->GetPrefs()->GetString(prefs::kLiveTranslateTargetLanguageCode);
for (size_t i = 0; i < languages_.size(); i++) {
if (target_language == languages_[i].code) {
return i;
}
}
return 0;
}
void LiveTranslateComboboxModel::UpdateTargetLanguageIndex(int index) {
profile_->GetPrefs()->SetString(prefs::kLiveTranslateTargetLanguageCode,
languages_[index].code);
}
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