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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 // The InMemoryHistoryBackend is a wrapper around the in-memory URL database. | 5 // The InMemoryHistoryBackend is a wrapper around the in-memory URL database. |
| 6 // It maintains an in-memory cache of a subset of history that is required for | 6 // It maintains an in-memory cache of a subset of history that is required for |
| 7 // low-latency operations, such as in-line autocomplete. | 7 // low-latency operations, such as in-line autocomplete. |
| 8 // | 8 // |
| 9 // The in-memory cache provides the following guarantees: | 9 // The in-memory cache provides the following guarantees: |
| 10 // (1.) It will always contain URLRows that either have a |typed_count| > 0; or | 10 // (1.) It will always contain URLRows that either have a |typed_count| > 0; or |
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| 38 class FilePath; | 38 class FilePath; |
| 39 } | 39 } |
| 40 | 40 |
| 41 namespace history { | 41 namespace history { |
| 42 | 42 |
| 43 class InMemoryDatabase; | 43 class InMemoryDatabase; |
| 44 struct KeywordSearchUpdatedDetails; | 44 struct KeywordSearchUpdatedDetails; |
| 45 struct KeywordSearchDeletedDetails; | 45 struct KeywordSearchDeletedDetails; |
| 46 class URLDatabase; | 46 class URLDatabase; |
| 47 class URLRow; | 47 class URLRow; |
| 48 struct URLsDeletedDetails; | |
| 49 struct URLsModifiedDetails; | |
| 50 | 48 |
| 51 class InMemoryHistoryBackend : public HistoryServiceObserver, | 49 class InMemoryHistoryBackend : public HistoryServiceObserver, |
| 52 public content::NotificationObserver { | 50 public content::NotificationObserver { |
| 53 public: | 51 public: |
| 54 InMemoryHistoryBackend(); | 52 InMemoryHistoryBackend(); |
| 55 ~InMemoryHistoryBackend() override; | 53 ~InMemoryHistoryBackend() override; |
| 56 | 54 |
| 57 // Initializes the backend from the history database pointed to by the | 55 // Initializes the backend from the history database pointed to by the |
| 58 // full path in |history_filename|. | 56 // full path in |history_filename|. |
| 59 bool Init(const base::FilePath& history_filename); | 57 bool Init(const base::FilePath& history_filename); |
| 60 | 58 |
| 61 // Does initialization work when this object is attached to the history | 59 // Does initialization work when this object is attached to the history |
| 62 // system on the main thread. The argument is the profile with which the | 60 // system on the main thread. The argument is the profile with which the |
| 63 // attached history service is under. | 61 // attached history service is under. |
| 64 void AttachToHistoryService(Profile* profile, | 62 void AttachToHistoryService(Profile* profile, |
| 65 HistoryService* history_service); | 63 HistoryService* history_service); |
| 66 | 64 |
| 67 // Deletes all search terms for the specified keyword. | 65 // Deletes all search terms for the specified keyword. |
| 68 void DeleteAllSearchTermsForKeyword(KeywordID keyword_id); | 66 void DeleteAllSearchTermsForKeyword(KeywordID keyword_id); |
| 69 | 67 |
| 70 // Returns the underlying database associated with this backend. The current | 68 // Returns the underlying database associated with this backend. The current |
| 71 // autocomplete code was written fro this, but it should probably be removed | 69 // autocomplete code was written fro this, but it should probably be removed |
| 72 // so that it can deal directly with this object, rather than the DB. | 70 // so that it can deal directly with this object, rather than the DB. |
| 73 InMemoryDatabase* db() const { | 71 InMemoryDatabase* db() const { |
| 74 return db_.get(); | 72 return db_.get(); |
| 75 } | 73 } |
| 76 | 74 |
| 75 // Notification callback. |
| 76 void Observe(int type, |
| 77 const content::NotificationSource& source, |
| 78 const content::NotificationDetails& details) override; |
| 79 |
| 80 private: |
| 81 FRIEND_TEST_ALL_PREFIXES(HistoryBackendTest, DeleteAll); |
| 82 FRIEND_TEST_ALL_PREFIXES(InMemoryHistoryBackendTest, OnURLsDeletedEnMasse); |
| 83 friend class HistoryBackendTestBase; |
| 84 friend class InMemoryHistoryBackendTest; |
| 85 |
| 77 // HistoryServiceObserver: | 86 // HistoryServiceObserver: |
| 78 void OnURLVisited(HistoryService* history_service, | 87 void OnURLVisited(HistoryService* history_service, |
| 79 ui::PageTransition transition, | 88 ui::PageTransition transition, |
| 80 const URLRow& row, | 89 const URLRow& row, |
| 81 const RedirectList& redirects, | 90 const RedirectList& redirects, |
| 82 base::Time visit_time) override; | 91 base::Time visit_time) override; |
| 83 void OnURLsModified(HistoryService* history_service, | 92 void OnURLsModified(HistoryService* history_service, |
| 84 const URLRows& changed_urls) override; | 93 const URLRows& changed_urls) override; |
| 85 | 94 void OnURLsDeleted(HistoryService* history_service, |
| 86 // Notification callback. | 95 bool all_history, |
| 87 void Observe(int type, | 96 bool expired, |
| 88 const content::NotificationSource& source, | 97 const URLRows& deleted_rows, |
| 89 const content::NotificationDetails& details) override; | 98 const std::set<GURL>& favicon_urls) override; |
| 90 | |
| 91 private: | |
| 92 FRIEND_TEST_ALL_PREFIXES(HistoryBackendTest, DeleteAll); | |
| 93 | 99 |
| 94 // Handler for HISTORY_URL_VISITED and HISTORY_URLS_MODIFIED. | 100 // Handler for HISTORY_URL_VISITED and HISTORY_URLS_MODIFIED. |
| 95 void OnURLVisitedOrModified(const URLRow& url_row); | 101 void OnURLVisitedOrModified(const URLRow& url_row); |
| 96 | 102 |
| 97 // Handler for HISTORY_URLS_DELETED. | |
| 98 void OnURLsDeleted(const URLsDeletedDetails& details); | |
| 99 | |
| 100 // Handler for HISTORY_KEYWORD_SEARCH_TERM_UPDATED. | 103 // Handler for HISTORY_KEYWORD_SEARCH_TERM_UPDATED. |
| 101 void OnKeywordSearchTermUpdated(const KeywordSearchUpdatedDetails& details); | 104 void OnKeywordSearchTermUpdated(const KeywordSearchUpdatedDetails& details); |
| 102 | 105 |
| 103 // Handler for HISTORY_KEYWORD_SEARCH_TERM_DELETED. | 106 // Handler for HISTORY_KEYWORD_SEARCH_TERM_DELETED. |
| 104 void OnKeywordSearchTermDeleted(const KeywordSearchDeletedDetails& details); | 107 void OnKeywordSearchTermDeleted(const KeywordSearchDeletedDetails& details); |
| 105 | 108 |
| 106 content::NotificationRegistrar registrar_; | 109 content::NotificationRegistrar registrar_; |
| 107 | 110 |
| 108 scoped_ptr<InMemoryDatabase> db_; | 111 scoped_ptr<InMemoryDatabase> db_; |
| 109 | 112 |
| 110 // The profile that this object is attached. May be NULL before | 113 // The profile that this object is attached. May be NULL before |
| 111 // initialization. | 114 // initialization. |
| 112 Profile* profile_; | 115 Profile* profile_; |
| 113 ScopedObserver<HistoryService, HistoryServiceObserver> | 116 ScopedObserver<HistoryService, HistoryServiceObserver> |
| 114 history_service_observer_; | 117 history_service_observer_; |
| 115 HistoryService* history_service_; | 118 HistoryService* history_service_; |
| 116 | 119 |
| 117 DISALLOW_COPY_AND_ASSIGN(InMemoryHistoryBackend); | 120 DISALLOW_COPY_AND_ASSIGN(InMemoryHistoryBackend); |
| 118 }; | 121 }; |
| 119 | 122 |
| 120 } // namespace history | 123 } // namespace history |
| 121 | 124 |
| 122 #endif // CHROME_BROWSER_HISTORY_IN_MEMORY_HISTORY_BACKEND_H_ | 125 #endif // CHROME_BROWSER_HISTORY_IN_MEMORY_HISTORY_BACKEND_H_ |
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