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      1 // Copyright 2014 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 COMPONENTS_TRANSLATE_CORE_BROWSER_TRANSLATE_CLIENT_H_
      6 #define COMPONENTS_TRANSLATE_CORE_BROWSER_TRANSLATE_CLIENT_H_
      7 
      8 #include <string>
      9 
     10 #include "base/memory/ref_counted.h"
     11 #include "base/memory/scoped_ptr.h"
     12 #include "components/translate/core/browser/translate_prefs.h"
     13 #include "components/translate/core/browser/translate_step.h"
     14 #include "components/translate/core/common/translate_errors.h"
     15 
     16 class GURL;
     17 class PrefService;
     18 
     19 namespace infobars {
     20 class InfoBar;
     21 }
     22 
     23 namespace translate {
     24 
     25 class TranslateAcceptLanguages;
     26 class TranslateDriver;
     27 class TranslateInfoBarDelegate;
     28 
     29 // A client interface that needs to be supplied to TranslateManager by the
     30 // embedder.
     31 //
     32 // Each client instance is associated with a given context within which a
     33 // TranslateManager is used (e.g. a single tab).
     34 class TranslateClient {
     35  public:
     36   // Gets the TranslateDriver associated with the client.
     37   virtual TranslateDriver* GetTranslateDriver() = 0;
     38 
     39   // Returns the associated PrefService.
     40   virtual PrefService* GetPrefs() = 0;
     41 
     42   // Returns the associated TranslatePrefs.
     43   virtual scoped_ptr<TranslatePrefs> GetTranslatePrefs() = 0;
     44 
     45   // Returns the associated TranslateAcceptLanguages.
     46   virtual TranslateAcceptLanguages* GetTranslateAcceptLanguages() = 0;
     47 
     48   // Returns the resource ID of the icon to be shown for the Translate infobars.
     49   virtual int GetInfobarIconID() const = 0;
     50 
     51   // Returns a translate infobar that owns |delegate|.
     52   virtual scoped_ptr<infobars::InfoBar> CreateInfoBar(
     53       scoped_ptr<TranslateInfoBarDelegate> delegate) const = 0;
     54 
     55   // Called when the embedder should present UI to the user corresponding to the
     56   // user's current |step|.
     57   virtual void ShowTranslateUI(translate::TranslateStep step,
     58                                const std::string source_language,
     59                                const std::string target_language,
     60                                TranslateErrors::Type error_type,
     61                                bool triggered_from_menu) = 0;
     62 
     63   // Returns true if the URL can be translated.
     64   virtual bool IsTranslatableURL(const GURL& url) = 0;
     65 
     66   // Presents |report_url|, a URL containing information relating to reporting
     67   // a language detection error, to the user to allow them to report language
     68   // detection errors as desired.
     69   virtual void ShowReportLanguageDetectionErrorUI(const GURL& report_url) = 0;
     70 };
     71 
     72 }  // namespace translate
     73 
     74 #endif  // COMPONENTS_TRANSLATE_CORE_BROWSER_TRANSLATE_CLIENT_H_
     75