1 // Copyright (c) 2012 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_UI_WEBUI_OPTIONS_LANGUAGE_OPTIONS_HANDLER_COMMON_H_ 6 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_LANGUAGE_OPTIONS_HANDLER_COMMON_H_ 7 8 #include "base/memory/weak_ptr.h" 9 #include "chrome/browser/spellchecker/spellcheck_hunspell_dictionary.h" 10 #include "chrome/browser/ui/webui/options/options_ui.h" 11 12 namespace base { 13 class DictionaryValue; 14 class ListValue; 15 } 16 17 namespace options { 18 19 // The base class for language options page UI handlers. This class has code 20 // common to the Chrome OS and non-Chrome OS implementation of the handler. 21 class LanguageOptionsHandlerCommon 22 : public OptionsPageUIHandler, 23 public SpellcheckHunspellDictionary::Observer { 24 public: 25 LanguageOptionsHandlerCommon(); 26 virtual ~LanguageOptionsHandlerCommon(); 27 28 // OptionsPageUIHandler implementation. 29 virtual void GetLocalizedValues( 30 base::DictionaryValue* localized_strings) OVERRIDE; 31 virtual void Uninitialize() OVERRIDE; 32 33 // DOMMessageHandler implementation. 34 virtual void RegisterMessages() OVERRIDE; 35 36 // SpellcheckHunspellDictionary::Observer implementation. 37 virtual void OnHunspellDictionaryInitialized() OVERRIDE; 38 virtual void OnHunspellDictionaryDownloadBegin() OVERRIDE; 39 virtual void OnHunspellDictionaryDownloadSuccess() OVERRIDE; 40 virtual void OnHunspellDictionaryDownloadFailure() OVERRIDE; 41 42 // The following static methods are public for ease of testing. 43 44 // Gets the set of language codes that can be used as UI language. 45 // The return value will look like: 46 // {'en-US': true, 'fi': true, 'fr': true, ...} 47 // 48 // Note that true in values does not mean anything. We just use the 49 // dictionary as a set. 50 static base::DictionaryValue* GetUILanguageCodeSet(); 51 52 // Gets the set of language codes that can be used for spellchecking. 53 // The return value will look like: 54 // {'en-US': true, 'fi': true, 'fr': true, ...} 55 // 56 // Note that true in values does not mean anything. We just use the 57 // dictionary as a set. 58 static base::DictionaryValue* GetSpellCheckLanguageCodeSet(); 59 60 private: 61 // Returns the name of the product (ex. "Chrome" or "Chrome OS"). 62 virtual string16 GetProductName() = 0; 63 64 // Sets the application locale. 65 virtual void SetApplicationLocale(const std::string& language_code) = 0; 66 67 // Called when the language options is opened. 68 void LanguageOptionsOpenCallback(const base::ListValue* args); 69 70 // Called when the UI language is changed. 71 // |args| will contain the language code as string (ex. "fr"). 72 void UiLanguageChangeCallback(const base::ListValue* args); 73 74 // Called when the spell check language is changed. 75 // |args| will contain the language code as string (ex. "fr"). 76 void SpellCheckLanguageChangeCallback(const base::ListValue* args); 77 78 // Called when the user clicks "Retry" button for a spellcheck dictionary that 79 // has failed to download. 80 void RetrySpellcheckDictionaryDownload(const base::ListValue* args); 81 82 // Updates the hunspell dictionary that is used for spellchecking. 83 void RefreshHunspellDictionary(); 84 85 // Returns the hunspell dictionary that is used for spellchecking. Never null. 86 base::WeakPtr<SpellcheckHunspellDictionary>& GetHunspellDictionary(); 87 88 // The hunspell dictionary that is used for spellchecking. Might be null. 89 base::WeakPtr<SpellcheckHunspellDictionary> hunspell_dictionary_; 90 91 DISALLOW_COPY_AND_ASSIGN(LanguageOptionsHandlerCommon); 92 }; 93 94 } // namespace options 95 96 #endif // CHROME_BROWSER_UI_WEBUI_OPTIONS_LANGUAGE_OPTIONS_HANDLER_COMMON_H_ 97
