1 // Copyright (c) 2011 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_TRANSLATE_TRANSLATE_TAB_HELPER_H_ 6 #define CHROME_BROWSER_TRANSLATE_TRANSLATE_TAB_HELPER_H_ 7 8 #include "chrome/browser/tab_contents/language_state.h" 9 #include "chrome/common/translate/translate_errors.h" 10 #include "content/public/browser/web_contents_observer.h" 11 #include "content/public/browser/web_contents_user_data.h" 12 13 struct LanguageDetectionDetails; 14 15 class TranslateTabHelper 16 : public content::WebContentsObserver, 17 public content::WebContentsUserData<TranslateTabHelper> { 18 public: 19 virtual ~TranslateTabHelper(); 20 21 LanguageState& language_state() { return language_state_; } 22 23 private: 24 explicit TranslateTabHelper(content::WebContents* web_contents); 25 friend class content::WebContentsUserData<TranslateTabHelper>; 26 27 // content::WebContentsObserver implementation. 28 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; 29 virtual void DidNavigateAnyFrame( 30 const content::LoadCommittedDetails& details, 31 const content::FrameNavigateParams& params) OVERRIDE; 32 33 void OnLanguageDetermined(const LanguageDetectionDetails& details, 34 bool page_needs_translation); 35 void OnPageTranslated(int32 page_id, 36 const std::string& original_lang, 37 const std::string& translated_lang, 38 TranslateErrors::Type error_type); 39 40 // Information about the language the page is in and has been translated to. 41 LanguageState language_state_; 42 43 DISALLOW_COPY_AND_ASSIGN(TranslateTabHelper); 44 }; 45 46 #endif // CHROME_BROWSER_TRANSLATE_TRANSLATE_TAB_HELPER_H_ 47
