| // 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. |
| |
| #include "chrome/browser/translate/translate_tab_helper.h" |
| |
| #include "chrome/browser/chrome_notification_types.h" |
| #include "chrome/browser/translate/page_translated_details.h" |
| #include "chrome/common/render_messages.h" |
| #include "chrome/common/translate/language_detection_details.h" |
| #include "content/public/browser/notification_service.h" |
| #include "content/public/browser/web_contents.h" |
| |
| using content::WebContents; |
| |
| DEFINE_WEB_CONTENTS_USER_DATA_KEY(TranslateTabHelper); |
| |
| TranslateTabHelper::TranslateTabHelper(WebContents* web_contents) |
| : content::WebContentsObserver(web_contents), |
| language_state_(&web_contents->GetController()) { |
| } |
| |
| TranslateTabHelper::~TranslateTabHelper() { |
| } |
| |
| bool TranslateTabHelper::OnMessageReceived(const IPC::Message& message) { |
| bool handled = true; |
| IPC_BEGIN_MESSAGE_MAP(TranslateTabHelper, message) |
| IPC_MESSAGE_HANDLER(ChromeViewHostMsg_TranslateLanguageDetermined, |
| OnLanguageDetermined) |
| IPC_MESSAGE_HANDLER(ChromeViewHostMsg_PageTranslated, OnPageTranslated) |
| IPC_MESSAGE_UNHANDLED(handled = false) |
| IPC_END_MESSAGE_MAP() |
| |
| return handled; |
| } |
| |
| void TranslateTabHelper::DidNavigateAnyFrame( |
| const content::LoadCommittedDetails& details, |
| const content::FrameNavigateParams& params) { |
| // Let the LanguageState clear its state. |
| language_state_.DidNavigate(details); |
| } |
| |
| void TranslateTabHelper::OnLanguageDetermined( |
| const LanguageDetectionDetails& details, |
| bool page_needs_translation) { |
| language_state_.LanguageDetermined(details.adopted_language, |
| page_needs_translation); |
| |
| content::NotificationService::current()->Notify( |
| chrome::NOTIFICATION_TAB_LANGUAGE_DETERMINED, |
| content::Source<WebContents>(web_contents()), |
| content::Details<const LanguageDetectionDetails>(&details)); |
| } |
| |
| void TranslateTabHelper::OnPageTranslated(int32 page_id, |
| const std::string& original_lang, |
| const std::string& translated_lang, |
| TranslateErrors::Type error_type) { |
| language_state_.set_current_language(translated_lang); |
| language_state_.set_translation_pending(false); |
| PageTranslatedDetails details; |
| details.source_language = original_lang; |
| details.target_language = translated_lang; |
| details.error_type = error_type; |
| content::NotificationService::current()->Notify( |
| chrome::NOTIFICATION_PAGE_TRANSLATED, |
| content::Source<WebContents>(web_contents()), |
| content::Details<PageTranslatedDetails>(&details)); |
| } |