1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef CHROME_BROWSER_BOOKMARK_STORAGE_H_
#define CHROME_BROWSER_BOOKMARK_STORAGE_H_
#include "base/ref_counted.h"
#include "base/task.h"
#include "chrome/browser/browser_process.h"
class BookmarkBarModel;
class Profile;
class Value;
// BookmarkStorage handles reading/write the bookmark bar model. The
// BookmarkBarModel uses the BookmarkStorage to load bookmarks from
// disk, as well as notifying the BookmarkStorage every time the model
// changes.
//
// Internally BookmarkStorage uses BookmarkCodec to do the actual read/write.
class BookmarkStorage : public base::RefCountedThreadSafe<BookmarkStorage> {
friend class BookmarkStorageBackend;
public:
// Creates a BookmarkStorage for the specified model
BookmarkStorage(Profile* profile, BookmarkBarModel* model);
// Loads the bookmarks into the model, notifying the model when done. If
// load_from_history is true, the bookmarks are loaded from the file written
// by history (StarredURLDatabase).
void LoadBookmarks(bool load_from_history);
// Schedules saving the bookmark bar model to disk.
void ScheduleSave();
// Notification the bookmark bar model is going to be deleted. If there is
// a pending save, it is saved immediately.
void BookmarkModelDeleted();
private:
// Callback from backend with the results of the bookmark file.
void LoadedBookmarks(Value* root_value,
bool bookmark_file_exists,
bool loaded_from_history);
// Schedules a save on the backend thread.
void SaveNow();
// Returns the thread the backend is run on.
Thread* backend_thread() const { return backend_thread_; }
// The model. The model is NULL once BookmarkModelDeleted has been invoked.
BookmarkBarModel* model_;
// Used to delay saves.
ScopedRunnableMethodFactory<BookmarkStorage> save_factory_;
// The backend handles actual reading/writing to disk.
scoped_refptr<BookmarkStorageBackend> backend_;
// Thread read/writing is run on. This comes from the profile, and is null
// during testing.
Thread* backend_thread_;
DISALLOW_COPY_AND_ASSIGN(BookmarkStorage);
};
// Used to save the bookmarks on the file thread.
class BookmarkStorageBackend :
public base::RefCountedThreadSafe<BookmarkStorageBackend> {
public:
explicit BookmarkStorageBackend(const std::wstring& path,
const std::wstring& tmp_histor_path);
// Writes the specified value to disk. This takes ownership of |value| and
// deletes it when done.
void Write(Value* value);
// Reads the bookmarks from kBookmarksFileName. Notifies |service| with
// the results on the specified MessageLoop.
void Read(scoped_refptr<BookmarkStorage> service,
MessageLoop* message_loop,
bool load_from_history);
private:
// Path we read/write to.
const std::wstring path_;
// Path bookmarks are read from if asked to load from history file.
const std::wstring tmp_history_path_;
DISALLOW_EVIL_CONSTRUCTORS(BookmarkStorageBackend);
};
#endif // CHROME_BROWSER_BOOKMARK_STORAGE_H_
|
