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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
3 // found in the LICENSE file.
4 
5 #ifndef CHROME_BROWSER_HISTORY_SHORTCUTS_DATABASE_H_
6 #define CHROME_BROWSER_HISTORY_SHORTCUTS_DATABASE_H_
7 
8 #include <map>
9 #include <string>
10 #include <vector>
11 
12 #include "base/files/file_path.h"
13 #include "base/gtest_prod_util.h"
14 #include "base/memory/ref_counted.h"
15 #include "base/strings/string16.h"
16 #include "chrome/browser/history/shortcuts_backend.h"
17 #include "sql/connection.h"
18 #include "url/gurl.h"
19 
20 namespace history {
21 
22 // This class manages the shortcut provider table within the SQLite database
23 // passed to the constructor. It expects the following schema:
24 //
25 // Note: The database stores time in seconds, UTC.
26 //
27 // omni_box_shortcuts
28 //   id                  Unique id of the entry (needed for the sync).
29 //   search_text         Text that shortcuts was searched with.
30 //   url                 The url of the shortcut.
31 //   contents            Contents of the original omni-box entry.
32 //   contents_matches    Comma separated matches of the |search_text| in
33 //                       |contents|, for example "0,0,5,3,9,0".
34 //   description         Description of the original omni-box entry.
35 //   description_matches Comma separated matches of the |search_text| in
36 //                       |description|.
37 //   last_access_time    Time the entry was accessed last, stored in seconds,
38 //                       UTC.
39 //   number_of_hits      Number of times that the entry has been selected.
40 class ShortcutsDatabase : public base::RefCountedThreadSafe<ShortcutsDatabase> {
41  public:
42   typedef std::map<std::string, ShortcutsBackend::Shortcut> GuidToShortcutMap;
43 
44   explicit ShortcutsDatabase(const base::FilePath& database_path);
45 
46   bool Init();
47 
48   // Adds the ShortcutsProvider::Shortcut to the database.
49   bool AddShortcut(const ShortcutsBackend::Shortcut& shortcut);
50 
51   // Updates timing and selection count for the ShortcutsProvider::Shortcut.
52   bool UpdateShortcut(const ShortcutsBackend::Shortcut& shortcut);
53 
54   // Deletes the ShortcutsProvider::Shortcuts with the id.
55   bool DeleteShortcutsWithIds(const std::vector<std::string>& shortcut_ids);
56 
57   // Deletes the ShortcutsProvider::Shortcuts with the url.
58   bool DeleteShortcutsWithUrl(const std::string& shortcut_url_spec);
59 
60   // Deletes all of the ShortcutsProvider::Shortcuts.
61   bool DeleteAllShortcuts();
62 
63   // Loads all of the shortcuts.
64   void LoadShortcuts(GuidToShortcutMap* shortcuts);
65 
66  private:
67   friend class base::RefCountedThreadSafe<ShortcutsDatabase>;
68   friend class ShortcutsDatabaseTest;
69   FRIEND_TEST_ALL_PREFIXES(ShortcutsDatabaseTest, AddShortcut);
70   FRIEND_TEST_ALL_PREFIXES(ShortcutsDatabaseTest, UpdateShortcut);
71   FRIEND_TEST_ALL_PREFIXES(ShortcutsDatabaseTest, DeleteShortcutsWithIds);
72   FRIEND_TEST_ALL_PREFIXES(ShortcutsDatabaseTest, DeleteShortcutsWithUrl);
73   FRIEND_TEST_ALL_PREFIXES(ShortcutsDatabaseTest, LoadShortcuts);
74 
75   virtual ~ShortcutsDatabase();
76 
77   // Ensures that the table is present.
78   bool EnsureTable();
79 
80   // The sql database. Not valid until Init is called.
81   sql::Connection db_;
82   base::FilePath database_path_;
83 
84   static const base::FilePath::CharType kShortcutsDatabaseName[];
85 
86   DISALLOW_COPY_AND_ASSIGN(ShortcutsDatabase);
87 };
88 
89 }  // namespace history
90 
91 #endif  // CHROME_BROWSER_HISTORY_SHORTCUTS_DATABASE_H_
92