1 // Copyright 2013 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 CHROME_BROWSER_TAB_CONTENTS_LANGUAGE_STATE_OBSERVER_H_ 6 #define CHROME_BROWSER_TAB_CONTENTS_LANGUAGE_STATE_OBSERVER_H_ 7 8 namespace content { 9 class WebContents; 10 } 11 12 // The observer for the language state. 13 class LanguageStateObserver { 14 public: 15 // Handles when the value of IsPageTranslated is changed. 16 virtual void OnIsPageTranslatedChanged(content::WebContents* source) = 0; 17 18 // Handles when the value of translate_enabled is changed. 19 virtual void OnTranslateEnabledChanged(content::WebContents* source) = 0; 20 21 protected: ~LanguageStateObserver()22 virtual ~LanguageStateObserver() {} 23 }; 24 25 #endif // CHROME_BROWSER_TAB_CONTENTS_LANGUAGE_STATE_OBSERVER_H_ 26