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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_CONTENT_BROWSER_CONTENT_TRANSLATE_DRIVER_H_
      6 #define COMPONENTS_TRANSLATE_CONTENT_BROWSER_CONTENT_TRANSLATE_DRIVER_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "components/translate/core/browser/translate_driver.h"
     10 
     11 namespace content {
     12 class NavigationController;
     13 class WebContents;
     14 }
     15 
     16 // Content implementation of TranslateDriver.
     17 class ContentTranslateDriver : public TranslateDriver {
     18  public:
     19 
     20   // The observer for the ContentTranslateDriver.
     21   class Observer {
     22    public:
     23     // Handles when the value of IsPageTranslated is changed.
     24     virtual void OnIsPageTranslatedChanged(content::WebContents* source) = 0;
     25 
     26     // Handles when the value of translate_enabled is changed.
     27     virtual void OnTranslateEnabledChanged(content::WebContents* source) = 0;
     28 
     29    protected:
     30     virtual ~Observer() {}
     31   };
     32 
     33   ContentTranslateDriver(content::NavigationController* nav_controller);
     34   virtual ~ContentTranslateDriver();
     35 
     36   // Sets the Observer. Calling this method is optional.
     37   void set_observer(Observer* observer) { observer_ = observer; }
     38 
     39   // TranslateDriver methods.
     40   virtual void OnIsPageTranslatedChanged() OVERRIDE;
     41   virtual void OnTranslateEnabledChanged() OVERRIDE;
     42   virtual bool IsLinkNavigation() OVERRIDE;
     43   virtual void TranslatePage(const std::string& translate_script,
     44                              const std::string& source_lang,
     45                              const std::string& target_lang) OVERRIDE;
     46   virtual void RevertTranslation() OVERRIDE;
     47   virtual bool IsOffTheRecord() OVERRIDE;
     48   virtual const std::string& GetContentsMimeType() OVERRIDE;
     49   virtual const GURL& GetLastCommittedURL() OVERRIDE;
     50   virtual const GURL& GetActiveURL() OVERRIDE;
     51   virtual const GURL& GetVisibleURL() OVERRIDE;
     52   virtual bool HasCurrentPage() OVERRIDE;
     53   virtual int GetCurrentPageID() OVERRIDE;
     54   virtual void OpenUrlInNewTab(const GURL& url) OVERRIDE;
     55 
     56  private:
     57   // The navigation controller of the tab we are associated with.
     58   content::NavigationController* navigation_controller_;
     59 
     60   Observer* observer_;
     61 
     62   DISALLOW_COPY_AND_ASSIGN(ContentTranslateDriver);
     63 };
     64 
     65 #endif  // COMPONENTS_TRANSLATE_CONTENT_BROWSER_CONTENT_TRANSLATE_DRIVER_H_
     66