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// 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/common/render_messages.h"
#include "components/translate/core/browser/page_translated_details.h"
#include "components/translate/core/common/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),
translate_driver_(&web_contents->GetController()) {
}
TranslateTabHelper::~TranslateTabHelper() {
}
LanguageState& TranslateTabHelper::GetLanguageState() {
return translate_driver_.language_state();
}
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.
translate_driver_.DidNavigate(details);
}
void TranslateTabHelper::OnLanguageDetermined(
const LanguageDetectionDetails& details,
bool page_needs_translation) {
translate_driver_.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) {
translate_driver_.language_state().SetCurrentLanguage(translated_lang);
translate_driver_.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));
}
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