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Side by Side Diff: chrome/browser/extensions/settings/settings_sync_processor.h

Issue 11747025: Run the JSON Schema Compiler's bundle compilation on JSON files. Previously it (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: fix ms release build Created 7 years, 11 months ago
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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_EXTENSIONS_SETTINGS_SETTINGS_SYNC_PROCESSOR_H_
6 #define CHROME_BROWSER_EXTENSIONS_SETTINGS_SETTINGS_SYNC_PROCESSOR_H_
7
8 #include <set>
9 #include <string>
10
11 #include "chrome/browser/value_store/value_store_change.h"
12 #include "sync/api/sync_error.h"
13
14 namespace syncer {
15 class SyncChangeProcessor;
16 } // namespace syncer
17
18 namespace extensions {
19
20 // A wrapper for a SyncChangeProcessor that deals specifically with the syncing
21 // of a single extension's settings. Handles:
22 // - translating SettingChanges into calls into the Sync API.
23 // - deciding whether to ADD/REMOVE/SET depending on the current state of
24 // settings.
25 // - rate limiting (inherently per-extension, which is what we want).
26 class SettingsSyncProcessor {
27 public:
28 SettingsSyncProcessor(const std::string& extension_id,
29 syncer::ModelType type,
30 syncer::SyncChangeProcessor* sync_processor);
31 ~SettingsSyncProcessor();
32
33 // Initializes this with the initial state of sync.
34 void Init(const DictionaryValue& initial_state);
35
36 // Sends |changes| to sync.
37 syncer::SyncError SendChanges(const ValueStoreChangeList& changes);
38
39 // Informs this that |changes| have been receieved from sync. No action will
40 // be taken, but this must be notified for internal bookkeeping.
41 void NotifyChanges(const ValueStoreChangeList& changes);
42
43 syncer::ModelType type() { return type_; }
44
45 private:
46 // ID of the extension the changes are for.
47 const std::string extension_id_;
48
49 // Sync model type. Either EXTENSION_SETTING or APP_SETTING.
50 const syncer::ModelType type_;
51
52 // The sync processor used to send changes to sync.
53 syncer::SyncChangeProcessor* const sync_processor_;
54
55 // Whether Init() has been called.
56 bool initialized_;
57
58 // Keys of the settings that are currently being synced. Used to decide what
59 // kind of action (ADD, UPDATE, REMOVE) to send to sync.
60 std::set<std::string> synced_keys_;
61
62 DISALLOW_COPY_AND_ASSIGN(SettingsSyncProcessor);
63 };
64
65 } // namespace extensions
66
67 #endif // CHROME_BROWSER_EXTENSIONS_SETTINGS_SETTINGS_SYNC_PROCESSOR_H_
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