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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_EXTENSIONS_API_SYNC_FILE_SYSTEM_EXTENSION_SYNC_EVENT_OBSERVER_H_
#define CHROME_BROWSER_EXTENSIONS_API_SYNC_FILE_SYSTEM_EXTENSION_SYNC_EVENT_OBSERVER_H_
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "base/values.h"
#include "chrome/browser/sync_file_system/sync_event_observer.h"
#include "components/browser_context_keyed_service/browser_context_keyed_service.h"
class Profile;
namespace sync_file_system {
class SyncFileSystemService;
}
namespace extensions {
// Observes changes in SyncFileSystem and relays events to JS Extension API.
class ExtensionSyncEventObserver
: public sync_file_system::SyncEventObserver,
public BrowserContextKeyedService {
public:
explicit ExtensionSyncEventObserver(Profile* profile);
virtual ~ExtensionSyncEventObserver();
void InitializeForService(
sync_file_system::SyncFileSystemService* sync_service,
const std::string& service_name);
// BrowserContextKeyedService override.
virtual void Shutdown() OVERRIDE;
// sync_file_system::SyncEventObserver interface implementation.
virtual void OnSyncStateUpdated(
const GURL& app_origin,
sync_file_system::SyncServiceState state,
const std::string& description) OVERRIDE;
virtual void OnFileSynced(
const fileapi::FileSystemURL& url,
sync_file_system::SyncFileStatus status,
sync_file_system::SyncAction action,
sync_file_system::SyncDirection direction) OVERRIDE;
private:
// Returns an empty string if the extension |app_origin| cannot be found
// in the installed extension list.
std::string GetExtensionId(const GURL& app_origin);
Profile* profile_;
// Not owned. If not null, then this is registered to SyncFileSystemService.
sync_file_system::SyncFileSystemService* sync_service_;
std::string service_name_;
void BroadcastOrDispatchEvent(const GURL& app_origin,
const std::string& event_name,
scoped_ptr<base::ListValue> value);
DISALLOW_COPY_AND_ASSIGN(ExtensionSyncEventObserver);
};
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_API_SYNC_FILE_SYSTEM_EXTENSION_SYNC_EVENT_OBSERVER_H_
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