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.
5 #ifndef CHROME_BROWSER_EXTENSIONS_API_SYNC_FILE_SYSTEM_EXTENSION_SYNC_EVENT_OBSERVER_H_
6 #define CHROME_BROWSER_EXTENSIONS_API_SYNC_FILE_SYSTEM_EXTENSION_SYNC_EVENT_OBSERVER_H_
8 #include "base/basictypes.h"
9 #include "base/compiler_specific.h"
10 #include "base/memory/scoped_ptr.h"
11 #include "base/values.h"
12 #include "chrome/browser/sync_file_system/sync_event_observer.h"
13 #include "extensions/browser/browser_context_keyed_api_factory.h"
19 namespace sync_file_system {
20 class SyncFileSystemService;
23 namespace extensions {
25 // Observes changes in SyncFileSystem and relays events to JS Extension API.
26 class ExtensionSyncEventObserver : public sync_file_system::SyncEventObserver,
27 public BrowserContextKeyedAPI {
29 static BrowserContextKeyedAPIFactory<ExtensionSyncEventObserver>*
32 explicit ExtensionSyncEventObserver(content::BrowserContext* context);
33 ~ExtensionSyncEventObserver() override;
35 void InitializeForService(
36 sync_file_system::SyncFileSystemService* sync_service);
38 // KeyedService override.
39 void Shutdown() override;
41 // sync_file_system::SyncEventObserver interface implementation.
42 void OnSyncStateUpdated(const GURL& app_origin,
43 sync_file_system::SyncServiceState state,
44 const std::string& description) override;
46 void OnFileSynced(const storage::FileSystemURL& url,
47 sync_file_system::SyncFileType file_type,
48 sync_file_system::SyncFileStatus status,
49 sync_file_system::SyncAction action,
50 sync_file_system::SyncDirection direction) override;
53 friend class BrowserContextKeyedAPIFactory<ExtensionSyncEventObserver>;
55 // Returns an empty string if the extension |app_origin| cannot be found
56 // in the installed extension list.
57 std::string GetExtensionId(const GURL& app_origin);
59 // BrowserContextKeyedAPI implementation.
60 static const char* service_name() { return "ExtensionSyncEventObserver"; }
61 static const bool kServiceIsCreatedWithBrowserContext = false;
63 content::BrowserContext* browser_context_;
65 // Not owned. If not null, then this is registered to SyncFileSystemService.
66 sync_file_system::SyncFileSystemService* sync_service_;
68 void BroadcastOrDispatchEvent(const GURL& app_origin,
69 const std::string& event_name,
70 scoped_ptr<base::ListValue> value);
72 DISALLOW_COPY_AND_ASSIGN(ExtensionSyncEventObserver);
76 void BrowserContextKeyedAPIFactory<
77 ExtensionSyncEventObserver>::DeclareFactoryDependencies();
79 } // namespace extensions
81 #endif // CHROME_BROWSER_EXTENSIONS_API_SYNC_FILE_SYSTEM_EXTENSION_SYNC_EVENT_OBSERVER_H_