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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_MANAGER_H_
#define CHROME_BROWSER_TRANSLATE_TRANSLATE_MANAGER_H_
#include <map>
#include <set>
#include <string>
#include "base/singleton.h"
#include "chrome/common/notification_observer.h"
#include "chrome/common/notification_registrar.h"
class PrefService;
class TabContents;
// The TranslateManager class is responsible for showing an info-bar when a page
// in a language different than the user language is loaded. It triggers the
// page translation the user requests.
// It is a singleton.
class TranslateManager : public NotificationObserver {
public:
virtual ~TranslateManager();
// NotificationObserver implementation:
virtual void Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details);
protected:
// Overriden by unit-tests to enable the TranslateManager.
virtual bool TestEnabled() { return false; }
TranslateManager();
private:
friend struct DefaultSingletonTraits<TranslateManager>;
// Starts the translation process on |tab| containing the page in the
// |page_lang| language.
void InitiateTranslation(TabContents* tab, const std::string& page_lang);
// Returns true if the passed language has been configured by the user as an
// accept language.
bool IsAcceptLanguage(TabContents* tab, const std::string& language);
// Initializes the |accept_languages_| language table based on the associated
// preference in |prefs|.
void InitAcceptLanguages(PrefService* prefs);
NotificationRegistrar notification_registrar_;
// A map that associates a profile with its parsed "accept languages".
typedef std::set<std::string> LanguageSet;
typedef std::map<PrefService*, LanguageSet> PrefServiceLanguagesMap;
PrefServiceLanguagesMap accept_languages_;
DISALLOW_COPY_AND_ASSIGN(TranslateManager);
};
#endif // CHROME_BROWSER_TRANSLATE_TRANSLATE_MANAGER_H_
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