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1 // Copyright (c) 2010 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 #include "chrome/common/json_pref_store.h" | 5 #include "chrome/common/json_pref_store.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 | 8 |
9 #include "base/file_util.h" | 9 #include "base/file_util.h" |
10 #include "base/values.h" | 10 #include "base/values.h" |
11 #include "chrome/common/json_value_serializer.h" | 11 #include "chrome/common/json_value_serializer.h" |
| 12 #include "content/common/notification_service.h" |
12 | 13 |
13 namespace { | 14 namespace { |
14 | 15 |
15 // Some extensions we'll tack on to copies of the Preferences files. | 16 // Some extensions we'll tack on to copies of the Preferences files. |
16 const FilePath::CharType* kBadExtension = FILE_PATH_LITERAL("bad"); | 17 const FilePath::CharType* kBadExtension = FILE_PATH_LITERAL("bad"); |
17 | 18 |
18 } // namespace | 19 } // namespace |
19 | 20 |
20 JsonPrefStore::JsonPrefStore(const FilePath& filename, | 21 JsonPrefStore::JsonPrefStore(const FilePath& filename, |
21 base::MessageLoopProxy* file_message_loop_proxy) | 22 base::MessageLoopProxy* file_message_loop_proxy) |
22 : path_(filename), | 23 : path_(filename), |
23 prefs_(new DictionaryValue()), | 24 prefs_(new DictionaryValue()), |
24 read_only_(false), | 25 read_only_(false), |
25 writer_(filename, file_message_loop_proxy) { | 26 writer_(filename, file_message_loop_proxy), |
| 27 source_(NotificationService::AllSources()) { |
26 } | 28 } |
27 | 29 |
28 JsonPrefStore::~JsonPrefStore() { | 30 JsonPrefStore::~JsonPrefStore() { |
29 if (writer_.HasPendingWrite() && !read_only_) | 31 CommitPendingWrite(); |
30 writer_.DoScheduledWrite(); | |
31 } | 32 } |
32 | 33 |
33 PrefStore::ReadResult JsonPrefStore::GetValue(const std::string& key, | 34 PrefStore::ReadResult JsonPrefStore::GetValue(const std::string& key, |
34 Value** result) const { | 35 Value** result) const { |
35 return prefs_->Get(key, result) ? READ_OK : READ_NO_VALUE; | 36 return prefs_->Get(key, result) ? READ_OK : READ_NO_VALUE; |
36 } | 37 } |
37 | 38 |
38 void JsonPrefStore::AddObserver(PrefStore::Observer* observer) { | 39 void JsonPrefStore::AddObserver(PrefStore::Observer* observer) { |
39 observers_.AddObserver(observer); | 40 observers_.AddObserver(observer); |
40 } | 41 } |
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152 return true; | 153 return true; |
153 } | 154 } |
154 | 155 |
155 void JsonPrefStore::ScheduleWritePrefs() { | 156 void JsonPrefStore::ScheduleWritePrefs() { |
156 if (read_only_) | 157 if (read_only_) |
157 return; | 158 return; |
158 | 159 |
159 writer_.ScheduleWrite(this); | 160 writer_.ScheduleWrite(this); |
160 } | 161 } |
161 | 162 |
| 163 void JsonPrefStore::CommitPendingWrite() { |
| 164 if (writer_.HasPendingWrite() && !read_only_) { |
| 165 writer_.DoScheduledWrite(); |
| 166 } else { |
| 167 #if defined(OS_CHROMEOS) |
| 168 if (NotificationService::current()) { |
| 169 NotificationService::current()->Notify( |
| 170 NotificationType::PREF_COMMITTED, |
| 171 source_, |
| 172 NotificationService::NoDetails()); |
| 173 } |
| 174 #endif |
| 175 } |
| 176 } |
| 177 |
| 178 void JsonPrefStore::SetNotificationSource(const NotificationSource& source) { |
| 179 source_ = source; |
| 180 writer_.set_notification_source(source); |
| 181 } |
| 182 |
162 void JsonPrefStore::ReportValueChanged(const std::string& key) { | 183 void JsonPrefStore::ReportValueChanged(const std::string& key) { |
163 FOR_EACH_OBSERVER(PrefStore::Observer, observers_, OnPrefValueChanged(key)); | 184 FOR_EACH_OBSERVER(PrefStore::Observer, observers_, OnPrefValueChanged(key)); |
164 } | 185 } |
165 | 186 |
166 bool JsonPrefStore::SerializeData(std::string* output) { | 187 bool JsonPrefStore::SerializeData(std::string* output) { |
167 // TODO(tc): Do we want to prune webkit preferences that match the default | 188 // TODO(tc): Do we want to prune webkit preferences that match the default |
168 // value? | 189 // value? |
169 JSONStringValueSerializer serializer(output); | 190 JSONStringValueSerializer serializer(output); |
170 serializer.set_pretty_print(true); | 191 serializer.set_pretty_print(true); |
171 scoped_ptr<DictionaryValue> copy(prefs_->DeepCopyWithoutEmptyChildren()); | 192 scoped_ptr<DictionaryValue> copy(prefs_->DeepCopyWithoutEmptyChildren()); |
172 return serializer.Serialize(*(copy.get())); | 193 return serializer.Serialize(*(copy.get())); |
173 } | 194 } |
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