| // Copyright (c) 2011 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_TAB_HELPER_H_ |
| #define CHROME_BROWSER_TRANSLATE_TRANSLATE_TAB_HELPER_H_ |
| |
| #include "chrome/browser/tab_contents/language_state.h" |
| #include "chrome/common/translate/translate_errors.h" |
| #include "content/public/browser/web_contents_observer.h" |
| #include "content/public/browser/web_contents_user_data.h" |
| |
| struct LanguageDetectionDetails; |
| |
| class TranslateTabHelper |
| : public content::WebContentsObserver, |
| public content::WebContentsUserData<TranslateTabHelper> { |
| public: |
| virtual ~TranslateTabHelper(); |
| |
| LanguageState& language_state() { return language_state_; } |
| |
| private: |
| explicit TranslateTabHelper(content::WebContents* web_contents); |
| friend class content::WebContentsUserData<TranslateTabHelper>; |
| |
| // content::WebContentsObserver implementation. |
| virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; |
| virtual void DidNavigateAnyFrame( |
| const content::LoadCommittedDetails& details, |
| const content::FrameNavigateParams& params) OVERRIDE; |
| |
| void OnLanguageDetermined(const LanguageDetectionDetails& details, |
| bool page_needs_translation); |
| void OnPageTranslated(int32 page_id, |
| const std::string& original_lang, |
| const std::string& translated_lang, |
| TranslateErrors::Type error_type); |
| |
| // Information about the language the page is in and has been translated to. |
| LanguageState language_state_; |
| |
| DISALLOW_COPY_AND_ASSIGN(TranslateTabHelper); |
| }; |
| |
| #endif // CHROME_BROWSER_TRANSLATE_TRANSLATE_TAB_HELPER_H_ |