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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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_HISTORY_TOP_SITES_BACKEND_H_ | 5 #ifndef CHROME_BROWSER_HISTORY_TOP_SITES_BACKEND_H_ |
6 #define CHROME_BROWSER_HISTORY_TOP_SITES_BACKEND_H_ | 6 #define CHROME_BROWSER_HISTORY_TOP_SITES_BACKEND_H_ |
7 | 7 |
8 #include "base/callback.h" | 8 #include "base/callback.h" |
9 #include "base/files/file_path.h" | 9 #include "base/files/file_path.h" |
10 #include "base/memory/ref_counted.h" | 10 #include "base/memory/ref_counted.h" |
11 #include "base/memory/scoped_ptr.h" | 11 #include "base/memory/scoped_ptr.h" |
12 #include "chrome/browser/history/history_types.h" | 12 #include "chrome/browser/history/history_types.h" |
13 | 13 |
| 14 namespace base { |
14 class CancelableTaskTracker; | 15 class CancelableTaskTracker; |
15 | |
16 namespace base { | |
17 class FilePath; | 16 class FilePath; |
18 } | 17 } |
19 | 18 |
20 namespace history { | 19 namespace history { |
21 | 20 |
22 class TopSitesDatabase; | 21 class TopSitesDatabase; |
23 | 22 |
24 // Service used by TopSites to have db interaction happen on the DB thread. All | 23 // Service used by TopSites to have db interaction happen on the DB thread. All |
25 // public methods are invoked on the ui thread and get funneled to the DB | 24 // public methods are invoked on the ui thread and get funneled to the DB |
26 // thread. | 25 // thread. |
27 class TopSitesBackend : public base::RefCountedThreadSafe<TopSitesBackend> { | 26 class TopSitesBackend : public base::RefCountedThreadSafe<TopSitesBackend> { |
28 public: | 27 public: |
29 // The boolean parameter indicates if the DB existed on disk or needs to be | 28 // The boolean parameter indicates if the DB existed on disk or needs to be |
30 // migrated. | 29 // migrated. |
31 typedef base::Callback<void(const scoped_refptr<MostVisitedThumbnails>&)> | 30 typedef base::Callback<void(const scoped_refptr<MostVisitedThumbnails>&)> |
32 GetMostVisitedThumbnailsCallback; | 31 GetMostVisitedThumbnailsCallback; |
33 | 32 |
34 TopSitesBackend(); | 33 TopSitesBackend(); |
35 | 34 |
36 void Init(const base::FilePath& path); | 35 void Init(const base::FilePath& path); |
37 | 36 |
38 // Schedules the db to be shutdown. | 37 // Schedules the db to be shutdown. |
39 void Shutdown(); | 38 void Shutdown(); |
40 | 39 |
41 // Fetches MostVisitedThumbnails. | 40 // Fetches MostVisitedThumbnails. |
42 void GetMostVisitedThumbnails( | 41 void GetMostVisitedThumbnails( |
43 const GetMostVisitedThumbnailsCallback& callback, | 42 const GetMostVisitedThumbnailsCallback& callback, |
44 CancelableTaskTracker* tracker); | 43 base::CancelableTaskTracker* tracker); |
45 | 44 |
46 // Updates top sites database from the specified delta. | 45 // Updates top sites database from the specified delta. |
47 void UpdateTopSites(const TopSitesDelta& delta); | 46 void UpdateTopSites(const TopSitesDelta& delta); |
48 | 47 |
49 // Sets the thumbnail. | 48 // Sets the thumbnail. |
50 void SetPageThumbnail(const MostVisitedURL& url, | 49 void SetPageThumbnail(const MostVisitedURL& url, |
51 int url_rank, | 50 int url_rank, |
52 const Images& thumbnail); | 51 const Images& thumbnail); |
53 | 52 |
54 // Deletes the database and recreates it. | 53 // Deletes the database and recreates it. |
55 void ResetDatabase(); | 54 void ResetDatabase(); |
56 | 55 |
57 // Schedules a request that does nothing on the DB thread, but then notifies | 56 // Schedules a request that does nothing on the DB thread, but then notifies |
58 // the the calling thread with a reply. This is used to make sure the db has | 57 // the the calling thread with a reply. This is used to make sure the db has |
59 // finished processing a request. | 58 // finished processing a request. |
60 void DoEmptyRequest(const base::Closure& reply, | 59 void DoEmptyRequest(const base::Closure& reply, |
61 CancelableTaskTracker* tracker); | 60 base::CancelableTaskTracker* tracker); |
62 | 61 |
63 private: | 62 private: |
64 friend class base::RefCountedThreadSafe<TopSitesBackend>; | 63 friend class base::RefCountedThreadSafe<TopSitesBackend>; |
65 | 64 |
66 virtual ~TopSitesBackend(); | 65 virtual ~TopSitesBackend(); |
67 | 66 |
68 // Invokes Init on the db_. | 67 // Invokes Init on the db_. |
69 void InitDBOnDBThread(const base::FilePath& path); | 68 void InitDBOnDBThread(const base::FilePath& path); |
70 | 69 |
71 // Shuts down the db. | 70 // Shuts down the db. |
(...skipping 17 matching lines...) Expand all Loading... |
89 base::FilePath db_path_; | 88 base::FilePath db_path_; |
90 | 89 |
91 scoped_ptr<TopSitesDatabase> db_; | 90 scoped_ptr<TopSitesDatabase> db_; |
92 | 91 |
93 DISALLOW_COPY_AND_ASSIGN(TopSitesBackend); | 92 DISALLOW_COPY_AND_ASSIGN(TopSitesBackend); |
94 }; | 93 }; |
95 | 94 |
96 } // namespace history | 95 } // namespace history |
97 | 96 |
98 #endif // CHROME_BROWSER_HISTORY_TOP_SITES_BACKEND_H_ | 97 #endif // CHROME_BROWSER_HISTORY_TOP_SITES_BACKEND_H_ |
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