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// Copyright (c) 2010 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_TRANSLATE_TRANSLATE_PREFS_H_
#define CHROME_BROWSER_TRANSLATE_TRANSLATE_PREFS_H_
#pragma once
#include <string>
#include "googleurl/src/gurl.h"
class DictionaryValue;
class ListValue;
class PrefService;
class TranslatePrefs {
public:
static const char kPrefTranslateLanguageBlacklist[];
static const char kPrefTranslateSiteBlacklist[];
static const char kPrefTranslateWhitelists[];
static const char kPrefTranslateDeniedCount[];
static const char kPrefTranslateAcceptedCount[];
explicit TranslatePrefs(PrefService* user_prefs);
bool IsLanguageBlacklisted(const std::string& original_language);
void BlacklistLanguage(const std::string& original_language);
void RemoveLanguageFromBlacklist(const std::string& original_language);
bool IsSiteBlacklisted(const std::string& site);
void BlacklistSite(const std::string& site);
void RemoveSiteFromBlacklist(const std::string& site);
bool IsLanguagePairWhitelisted(const std::string& original_language,
const std::string& target_language);
void WhitelistLanguagePair(const std::string& original_language,
const std::string& target_language);
void RemoveLanguagePairFromWhitelist(const std::string& original_language,
const std::string& target_language);
// These methods are used to track how many times the user has denied the
// translation for a specific language. (So we can present a UI to black-list
// that language if the user keeps denying translations).
int GetTranslationDeniedCount(const std::string& language);
void IncrementTranslationDeniedCount(const std::string& language);
void ResetTranslationDeniedCount(const std::string& language);
// These methods are used to track how many times the user has accepted the
// translation for a specific language. (So we can present a UI to white-list
// that langueg if the user keeps accepting translations).
int GetTranslationAcceptedCount(const std::string& language);
void IncrementTranslationAcceptedCount(const std::string& language);
void ResetTranslationAcceptedCount(const std::string& language);
static bool CanTranslate(PrefService* user_prefs,
const std::string& original_language, const GURL& url);
static bool ShouldAutoTranslate(PrefService* user_prefs,
const std::string& original_language, std::string* target_language);
static void RegisterUserPrefs(PrefService* user_prefs);
private:
static void MigrateTranslateWhitelists(PrefService* user_prefs);
bool IsValueBlacklisted(const char* pref_id, const std::string& value);
void BlacklistValue(const char* pref_id, const std::string& value);
void RemoveValueFromBlacklist(const char* pref_id, const std::string& value);
bool IsValueInList(const ListValue* list, const std::string& value);
bool IsLanguageWhitelisted(const std::string& original_language,
std::string* target_language);
// Retrieves the dictionary mapping the number of times translation has been
// denied for a language, creating it if necessary.
DictionaryValue* GetTranslationDeniedCountDictionary();
// Retrieves the dictionary mapping the number of times translation has been
// accepted for a language, creating it if necessary.
DictionaryValue* GetTranslationAcceptedCountDictionary();
PrefService* prefs_; // Weak.
};
#endif // CHROME_BROWSER_TRANSLATE_TRANSLATE_PREFS_H_
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