-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright 2012 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 <string>
#include <vector>
+#include "base/callback_list.h"
#include "base/gtest_prod_util.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
-#include "base/observer_list.h"
-#include "base/time/time.h"
-#include "chrome/browser/ui/translate/translate_bubble_model.h"
-#include "components/translate/core/common/translate_errors.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
template <typename T> struct DefaultSingletonTraits;
class GURL;
-struct LanguageDetectionDetails;
struct PageTranslatedDetails;
class PrefService;
-class Profile;
-struct ShortcutConfiguration;
-class TranslateAcceptLanguages;
struct TranslateErrorDetails;
-struct TranslateEventDetails;
-class TranslateInfoBarDelegate;
-class TranslateLanguageList;
-class TranslateScript;
namespace content {
class WebContents;
}
-namespace net {
-class URLFetcher;
-}
-
// The TranslateManager class is responsible for showing an info-bar when a page
// in a language different than the user language is loaded. It triggers the
// page translation the user requests.
// Returns true if the URL can be translated.
static bool IsTranslatableURL(const GURL& url);
- // Fills |languages| with the list of languages that the translate server can
- // translate to and from.
- static void GetSupportedLanguages(std::vector<std::string>* languages);
-
- // Returns the last-updated time when Chrome receives a language list from a
- // Translate server. Returns null time if Chrome hasn't received any lists.
- static base::Time GetSupportedLanguagesLastUpdated();
-
- // Returns the language code that can be used with the Translate method for a
- // specified |chrome_locale|.
- static std::string GetLanguageCode(const std::string& chrome_locale);
-
- // Returns true if |language| is supported by the translation server.
- static bool IsSupportedLanguage(const std::string& language);
-
- // Returns true if |language| is supported by the translation server as a
- // alpha language.
- static bool IsAlphaLanguage(const std::string& language);
-
- // Returns true if |language| is an Accept language for the user profile.
- static bool IsAcceptLanguage(Profile* profile, const std::string& language);
-
// Returns the language to translate to. The language returned is the
// first language found in the following list that is supported by the
// translation service:
static std::string GetAutoTargetLanguage(const std::string& original_language,
PrefService* prefs);
- // Returns true if the new translate bubble is enabled.
- static bool IsTranslateBubbleEnabled();
-
- // Let the caller decide if and when we should fetch the language list from
- // the translate server. This is a NOOP if switches::kDisableTranslate is set
- // or if prefs::kEnableTranslate is set to false.
- void FetchLanguageListFromTranslateServer(PrefService* prefs);
-
- // Allows caller to cleanup pending URLFetcher objects to make sure they
- // get released in the appropriate thread... Mainly for tests.
- void CleanupPendingUlrFetcher();
-
// Translates the page contents from |source_lang| to |target_lang|.
// The actual translation might be performed asynchronously if the translate
// script is not yet available.
// under options in the translate infobar.
void ReportLanguageDetectionError(content::WebContents* web_contents);
- // Clears the translate script, so it will be fetched next time we translate.
- void ClearTranslateScript();
-
// content::NotificationObserver implementation:
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
- // Used by unit-tests to override some defaults:
- // Delay after which the translate script is fetched again from the
- // translation server.
- void SetTranslateScriptExpirationDelay(int delay_ms);
-
// Number of attempts before waiting for a page to be fully reloaded.
void set_translate_max_reload_attemps(int attempts) {
max_reload_check_attempts_ = attempts;
}
- // The observer class for TranslateManager.
- class Observer {
- public:
- virtual void OnLanguageDetection(
- const LanguageDetectionDetails& details) = 0;
- virtual void OnTranslateError(
- const TranslateErrorDetails& details) = 0;
- virtual void OnTranslateEvent(
- const TranslateEventDetails& details) = 0;
- };
-
- // Adds/removes observer.
- void AddObserver(Observer* obs);
- void RemoveObserver(Observer* obs);
+ // Callback types for translate errors.
+ typedef base::Callback<void(const TranslateErrorDetails&)>
+ TranslateErrorCallback;
+ typedef base::CallbackList<void(const TranslateErrorDetails&)>
+ TranslateErrorCallbackList;
- // Notifies to the observers when translate event happens.
- void NotifyTranslateEvent(const TranslateEventDetails& details);
+ // Registers a callback for translate errors.
+ static scoped_ptr<TranslateErrorCallbackList::Subscription>
+ RegisterTranslateErrorCallback(const TranslateErrorCallback& callback);
protected:
TranslateManager();
void PageTranslated(content::WebContents* web_contents,
PageTranslatedDetails* details);
- void OnTranslateScriptFetchComplete(bool success, const std::string& data);
-
- // Notifies to the observers when a language is detected.
- void NotifyLanguageDetection(const LanguageDetectionDetails& details);
-
- // Notifies to the observers when translate failed.
- void NotifyTranslateError(const TranslateErrorDetails& details);
-
- // Shows the translate bubble.
- void ShowBubble(content::WebContents* web_contents,
- TranslateBubbleModel::ViewState view_state,
- TranslateErrors::Type error_type);
-
- // Returns the different parameters used to decide whether extra shortcuts
- // are needed.
- static ShortcutConfiguration ShortcutConfig();
+ void OnTranslateScriptFetchComplete(PendingRequest request,
+ bool success,
+ const std::string& data);
content::NotificationRegistrar notification_registrar_;
// Max number of attempts before checking if a page has been reloaded.
int max_reload_check_attempts_;
- // The list of pending translate requests. Translate requests are queued when
- // the translate script is not ready and has to be fetched from the translate
- // server.
- std::vector<PendingRequest> pending_requests_;
-
- // List of registered observers.
- ObserverList<Observer> observer_list_;
-
- // An instance of TranslateLanguageList which manages supported language list.
- scoped_ptr<TranslateLanguageList> language_list_;
-
- // An instance of TranslateScript which manages JavaScript source for
- // Translate.
- scoped_ptr<TranslateScript> script_;
-
- // An instance of TranslateAcceptLanguages which manages Accept languages of
- // each profiles.
- scoped_ptr<TranslateAcceptLanguages> accept_languages_;
-
base::WeakPtrFactory<TranslateManager> weak_method_factory_;
DISALLOW_COPY_AND_ASSIGN(TranslateManager);
projects / platform / framework / web / crosswalk.git / blobdiff