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Side by Side Diff: chrome/browser/translate/translate_manager.h

Issue 143003020: Move TranslateLanguageList to the Translate component (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@removeDelegate
Patch Set: gn build Created 6 years, 10 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef CHROME_BROWSER_TRANSLATE_TRANSLATE_MANAGER_H_ 5 #ifndef CHROME_BROWSER_TRANSLATE_TRANSLATE_MANAGER_H_
6 #define CHROME_BROWSER_TRANSLATE_TRANSLATE_MANAGER_H_ 6 #define CHROME_BROWSER_TRANSLATE_TRANSLATE_MANAGER_H_
7 7
8 #include <map> 8 #include <map>
9 #include <string> 9 #include <string>
10 #include <vector> 10 #include <vector>
11 11
12 #include "base/gtest_prod_util.h" 12 #include "base/gtest_prod_util.h"
13 #include "base/memory/scoped_ptr.h" 13 #include "base/memory/scoped_ptr.h"
14 #include "base/memory/weak_ptr.h" 14 #include "base/memory/weak_ptr.h"
15 #include "base/observer_list.h" 15 #include "base/observer_list.h"
16 #include "base/time/time.h"
17 #include "chrome/browser/ui/translate/translate_bubble_model.h" 16 #include "chrome/browser/ui/translate/translate_bubble_model.h"
18 #include "components/translate/core/common/translate_errors.h" 17 #include "components/translate/core/common/translate_errors.h"
19 #include "content/public/browser/notification_observer.h" 18 #include "content/public/browser/notification_observer.h"
20 #include "content/public/browser/notification_registrar.h" 19 #include "content/public/browser/notification_registrar.h"
21 20
22 template <typename T> struct DefaultSingletonTraits; 21 template <typename T> struct DefaultSingletonTraits;
23 class GURL; 22 class GURL;
24 struct LanguageDetectionDetails; 23 struct LanguageDetectionDetails;
25 struct PageTranslatedDetails; 24 struct PageTranslatedDetails;
26 class PrefService; 25 class PrefService;
27 class Profile; 26 class Profile;
28 struct ShortcutConfiguration; 27 struct ShortcutConfiguration;
29 class TranslateAcceptLanguages; 28 class TranslateAcceptLanguages;
30 struct TranslateErrorDetails; 29 struct TranslateErrorDetails;
31 struct TranslateEventDetails;
32 class TranslateInfoBarDelegate; 30 class TranslateInfoBarDelegate;
33 class TranslateLanguageList;
34 class TranslateScript; 31 class TranslateScript;
35 32
36 namespace content { 33 namespace content {
37 class WebContents; 34 class WebContents;
38 } 35 }
39 36
40 namespace net { 37 namespace net {
41 class URLFetcher; 38 class URLFetcher;
42 } 39 }
43 40
44 // The TranslateManager class is responsible for showing an info-bar when a page 41 // The TranslateManager class is responsible for showing an info-bar when a page
45 // in a language different than the user language is loaded. It triggers the 42 // in a language different than the user language is loaded. It triggers the
46 // page translation the user requests. 43 // page translation the user requests.
47 // It is a singleton. 44 // It is a singleton.
48 45
49 class TranslateManager : public content::NotificationObserver { 46 class TranslateManager : public content::NotificationObserver {
50 public: 47 public:
51 // Returns the singleton instance. 48 // Returns the singleton instance.
52 static TranslateManager* GetInstance(); 49 static TranslateManager* GetInstance();
53 50
54 virtual ~TranslateManager(); 51 virtual ~TranslateManager();
55 52
56 // Returns true if the URL can be translated. 53 // Returns true if the URL can be translated.
57 static bool IsTranslatableURL(const GURL& url); 54 static bool IsTranslatableURL(const GURL& url);
58 55
59 // Fills |languages| with the list of languages that the translate server can
60 // translate to and from.
61 static void GetSupportedLanguages(std::vector<std::string>* languages);
62
63 // Returns the last-updated time when Chrome receives a language list from a
64 // Translate server. Returns null time if Chrome hasn't received any lists.
65 static base::Time GetSupportedLanguagesLastUpdated();
66
67 // Returns the language code that can be used with the Translate method for a
68 // specified |chrome_locale|.
69 static std::string GetLanguageCode(const std::string& chrome_locale);
70
71 // Returns true if |language| is supported by the translation server.
72 static bool IsSupportedLanguage(const std::string& language);
73
74 // Returns true if |language| is supported by the translation server as a
75 // alpha language.
76 static bool IsAlphaLanguage(const std::string& language);
77
78 // Returns true if |language| is an Accept language for the user profile. 56 // Returns true if |language| is an Accept language for the user profile.
79 static bool IsAcceptLanguage(Profile* profile, const std::string& language); 57 static bool IsAcceptLanguage(Profile* profile, const std::string& language);
80 58
81 // Returns the language to translate to. The language returned is the 59 // Returns the language to translate to. The language returned is the
82 // first language found in the following list that is supported by the 60 // first language found in the following list that is supported by the
83 // translation service: 61 // translation service:
84 // the UI language 62 // the UI language
85 // the accept-language list 63 // the accept-language list
86 // If no language is found then an empty string is returned. 64 // If no language is found then an empty string is returned.
87 static std::string GetTargetLanguage(PrefService* prefs); 65 static std::string GetTargetLanguage(PrefService* prefs);
88 66
89 // Returns the language to automatically translate to. |original_language| is 67 // Returns the language to automatically translate to. |original_language| is
90 // the webpage's original language. 68 // the webpage's original language.
91 static std::string GetAutoTargetLanguage(const std::string& original_language, 69 static std::string GetAutoTargetLanguage(const std::string& original_language,
92 PrefService* prefs); 70 PrefService* prefs);
93 71
94 // Returns true if the new translate bubble is enabled. 72 // Returns true if the new translate bubble is enabled.
95 static bool IsTranslateBubbleEnabled(); 73 static bool IsTranslateBubbleEnabled();
96 74
97 // Let the caller decide if and when we should fetch the language list from
98 // the translate server. This is a NOOP if switches::kDisableTranslate is set
99 // or if prefs::kEnableTranslate is set to false.
100 void FetchLanguageListFromTranslateServer(PrefService* prefs);
101
102 // Allows caller to cleanup pending URLFetcher objects to make sure they 75 // Allows caller to cleanup pending URLFetcher objects to make sure they
103 // get released in the appropriate thread... Mainly for tests. 76 // get released in the appropriate thread... Mainly for tests.
104 void CleanupPendingUlrFetcher(); 77 void CleanupPendingUlrFetcher();
105 78
106 // Translates the page contents from |source_lang| to |target_lang|. 79 // Translates the page contents from |source_lang| to |target_lang|.
107 // The actual translation might be performed asynchronously if the translate 80 // The actual translation might be performed asynchronously if the translate
108 // script is not yet available. 81 // script is not yet available.
109 void TranslatePage(content::WebContents* web_contents, 82 void TranslatePage(content::WebContents* web_contents,
110 const std::string& source_lang, 83 const std::string& source_lang,
111 const std::string& target_lang); 84 const std::string& target_lang);
(...skipping 25 matching lines...) Expand all
137 max_reload_check_attempts_ = attempts; 110 max_reload_check_attempts_ = attempts;
138 } 111 }
139 112
140 // The observer class for TranslateManager. 113 // The observer class for TranslateManager.
141 class Observer { 114 class Observer {
142 public: 115 public:
143 virtual void OnLanguageDetection( 116 virtual void OnLanguageDetection(
144 const LanguageDetectionDetails& details) = 0; 117 const LanguageDetectionDetails& details) = 0;
145 virtual void OnTranslateError( 118 virtual void OnTranslateError(
146 const TranslateErrorDetails& details) = 0; 119 const TranslateErrorDetails& details) = 0;
147 virtual void OnTranslateEvent(
148 const TranslateEventDetails& details) = 0;
149 }; 120 };
150 121
151 // Adds/removes observer. 122 // Adds/removes observer.
152 void AddObserver(Observer* obs); 123 void AddObserver(Observer* obs);
153 void RemoveObserver(Observer* obs); 124 void RemoveObserver(Observer* obs);
154 125
155 // Notifies to the observers when translate event happens.
156 void NotifyTranslateEvent(const TranslateEventDetails& details);
157
158 protected: 126 protected:
159 TranslateManager(); 127 TranslateManager();
160 128
161 private: 129 private:
162 friend struct DefaultSingletonTraits<TranslateManager>; 130 friend struct DefaultSingletonTraits<TranslateManager>;
163 131
164 // Structure that describes a translate request. 132 // Structure that describes a translate request.
165 // Translation may be deferred while the translate script is being retrieved 133 // Translation may be deferred while the translate script is being retrieved
166 // from the translate server. 134 // from the translate server.
167 struct PendingRequest { 135 struct PendingRequest {
(...skipping 47 matching lines...) Expand 10 before | Expand all | Expand 10 after
215 int max_reload_check_attempts_; 183 int max_reload_check_attempts_;
216 184
217 // The list of pending translate requests. Translate requests are queued when 185 // The list of pending translate requests. Translate requests are queued when
218 // the translate script is not ready and has to be fetched from the translate 186 // the translate script is not ready and has to be fetched from the translate
219 // server. 187 // server.
220 std::vector<PendingRequest> pending_requests_; 188 std::vector<PendingRequest> pending_requests_;
221 189
222 // List of registered observers. 190 // List of registered observers.
223 ObserverList<Observer> observer_list_; 191 ObserverList<Observer> observer_list_;
224 192
225 // An instance of TranslateLanguageList which manages supported language list.
226 scoped_ptr<TranslateLanguageList> language_list_;
227
228 // An instance of TranslateScript which manages JavaScript source for 193 // An instance of TranslateScript which manages JavaScript source for
229 // Translate. 194 // Translate.
230 scoped_ptr<TranslateScript> script_; 195 scoped_ptr<TranslateScript> script_;
231 196
232 // An instance of TranslateAcceptLanguages which manages Accept languages of 197 // An instance of TranslateAcceptLanguages which manages Accept languages of
233 // each profiles. 198 // each profiles.
234 scoped_ptr<TranslateAcceptLanguages> accept_languages_; 199 scoped_ptr<TranslateAcceptLanguages> accept_languages_;
235 200
236 base::WeakPtrFactory<TranslateManager> weak_method_factory_; 201 base::WeakPtrFactory<TranslateManager> weak_method_factory_;
237 202
238 DISALLOW_COPY_AND_ASSIGN(TranslateManager); 203 DISALLOW_COPY_AND_ASSIGN(TranslateManager);
239 }; 204 };
240 205
241 #endif // CHROME_BROWSER_TRANSLATE_TRANSLATE_MANAGER_H_ 206 #endif // CHROME_BROWSER_TRANSLATE_TRANSLATE_MANAGER_H_
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