1 // Copyright (c) 2009 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_LANGUAGE_COMBOBOX_MODEL_H_ 6 #define CHROME_BROWSER_LANGUAGE_COMBOBOX_MODEL_H_ 7 #pragma once 8 9 #include <map> 10 #include <string> 11 #include <vector> 12 13 #include "base/basictypes.h" 14 #include "base/string16.h" 15 #include "ui/base/models/combobox_model.h" 16 17 class Profile; 18 19 /////////////////////////////////////////////////////////////////////////////// 20 // LanguageList 21 // Provides code to enumerate locale names for language selection lists. 22 // To be used by combobox, menu or other models. 23 class LanguageList { 24 public: 25 struct LocaleData { LocaleDataLocaleData26 LocaleData() { } LocaleDataLocaleData27 LocaleData(const string16& name, const std::string& code) 28 : native_name(name), locale_code(code) { } 29 30 string16 native_name; 31 std::string locale_code; // E.g., en-us. 32 }; 33 typedef std::map<string16, LocaleData> LocaleDataMap; 34 35 LanguageList(); 36 37 explicit LanguageList(const std::vector<std::string>& locale_codes); 38 39 virtual ~LanguageList(); 40 41 // Duplicates specified languages at the beginning of the list for 42 // easier access. 43 void CopySpecifiedLanguagesUp(const std::string& locale_codes); 44 45 int get_languages_count() const; 46 47 string16 GetLanguageNameAt(int index) const; 48 49 // Return the locale for the given index. E.g., may return pt-BR. 50 std::string GetLocaleFromIndex(int index) const; 51 52 // Returns the index for the given locale. Returns -1 if the locale is not 53 // in the combobox model. 54 int GetIndexFromLocale(const std::string& locale) const; 55 56 private: 57 // The names of all the locales in the current application locale. 58 std::vector<string16> locale_names_; 59 60 // A map of some extra data (LocaleData) keyed off the name of the locale. 61 LocaleDataMap native_names_; 62 63 void InitNativeNames(const std::vector<std::string>& locale_codes); 64 65 DISALLOW_COPY_AND_ASSIGN(LanguageList); 66 }; 67 68 /////////////////////////////////////////////////////////////////////////////// 69 // LanguageComboboxModel 70 // The combobox model implementation. 71 class LanguageComboboxModel : public LanguageList, public ui::ComboboxModel { 72 public: 73 LanguageComboboxModel(); 74 75 // Temporary compatibility constructor. 76 LanguageComboboxModel(Profile* profile, 77 const std::vector<std::string>& locale_codes); 78 79 virtual ~LanguageComboboxModel(); 80 81 virtual int GetItemCount(); 82 virtual string16 GetItemAt(int index); 83 84 // Returns the index of the language currently specified in the user's 85 // preference file. Note that it's possible for language A to be picked 86 // while chrome is currently in language B if the user specified language B 87 // via --lang. Since --lang is not a persistent setting, it seems that it 88 // shouldn't be reflected in this combo box. We return -1 if the value in 89 // the pref doesn't map to a know language (possible if the user edited the 90 // prefs file manually). 91 int GetSelectedLanguageIndex(const std::string& prefs); 92 93 private: 94 // Profile. 95 Profile* profile_; 96 97 DISALLOW_COPY_AND_ASSIGN(LanguageComboboxModel); 98 }; 99 100 #endif // CHROME_BROWSER_LANGUAGE_COMBOBOX_MODEL_H_ 101