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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_WEBUI_OPTIONS_LANGUAGE_OPTIONS_HANDLER_COMMON_H_
#define CHROME_BROWSER_UI_WEBUI_OPTIONS_LANGUAGE_OPTIONS_HANDLER_COMMON_H_
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "chrome/browser/spellchecker/spellcheck_hunspell_dictionary.h"
#include "chrome/browser/ui/webui/options/options_ui.h"
namespace base {
class DictionaryValue;
class ListValue;
}
namespace options {
// The base class for language options page UI handlers. This class has code
// common to the Chrome OS and non-Chrome OS implementation of the handler.
class LanguageOptionsHandlerCommon
: public OptionsPageUIHandler,
public SpellcheckHunspellDictionary::Observer {
public:
LanguageOptionsHandlerCommon();
~LanguageOptionsHandlerCommon() override;
// OptionsPageUIHandler implementation.
void GetLocalizedValues(base::DictionaryValue* localized_strings) override;
void Uninitialize() override;
// DOMMessageHandler implementation.
void RegisterMessages() override;
// SpellcheckHunspellDictionary::Observer implementation.
void OnHunspellDictionaryInitialized(const std::string& language) override;
void OnHunspellDictionaryDownloadBegin(const std::string& language) override;
void OnHunspellDictionaryDownloadSuccess(
const std::string& language) override;
void OnHunspellDictionaryDownloadFailure(
const std::string& language) override;
// The following static methods are public for ease of testing.
// Gets the set of language codes that can be used as UI language.
// The return value will look like:
// {'en-US': true, 'fi': true, 'fr': true, ...}
//
// Note that true in values does not mean anything. We just use the
// dictionary as a set.
static base::DictionaryValue* GetUILanguageCodeSet();
// Gets the set of language codes that can be used for spellchecking.
// The return value will look like:
// {'en-US': true, 'fi': true, 'fr': true, ...}
//
// Note that true in values does not mean anything. We just use the
// dictionary as a set.
static base::DictionaryValue* GetSpellCheckLanguageCodeSet();
private:
// Sets the application locale.
virtual void SetApplicationLocale(const std::string& language_code) = 0;
// Called when the language options is opened.
void LanguageOptionsOpenCallback(const base::ListValue* args);
// Called when the UI language is changed.
// |args| will contain the language code as string (ex. "fr").
void UiLanguageChangeCallback(const base::ListValue* args);
// Called when the spell check language is changed.
// |args| will contain the language code as string (ex. "fr").
void SpellCheckLanguageChangeCallback(const base::ListValue* args);
// Called when the user clicks "Retry" button for a spellcheck dictionary that
// has failed to download. |args| will contain the language code as a string
// (ex. "fr").
void RetrySpellcheckDictionaryDownload(const base::ListValue* args);
// Called when the user saves the language list preferences.
void UpdateLanguageListCallback(const base::ListValue* args);
// Returns a pointer to the browser SpellcheckService. Can be null if the
// service has already shut down.
SpellcheckService* GetSpellcheckService();
DISALLOW_COPY_AND_ASSIGN(LanguageOptionsHandlerCommon);
};
} // namespace options
#endif // CHROME_BROWSER_UI_WEBUI_OPTIONS_LANGUAGE_OPTIONS_HANDLER_COMMON_H_
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