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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 "extensions/browser/browser_context_keyed_api_factory.h"
namespace content {
class BrowserContext;
}
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 BrowserContextKeyedAPI {
public:
static BrowserContextKeyedAPIFactory<ExtensionSyncEventObserver>*
GetFactoryInstance();
explicit ExtensionSyncEventObserver(content::BrowserContext* context);
~ExtensionSyncEventObserver() override;
void InitializeForService(
sync_file_system::SyncFileSystemService* sync_service);
// KeyedService override.
void Shutdown() override;
// sync_file_system::SyncEventObserver interface implementation.
void OnSyncStateUpdated(const GURL& app_origin,
sync_file_system::SyncServiceState state,
const std::string& description) override;
void OnFileSynced(const storage::FileSystemURL& url,
sync_file_system::SyncFileType file_type,
sync_file_system::SyncFileStatus status,
sync_file_system::SyncAction action,
sync_file_system::SyncDirection direction) override;
private:
friend class BrowserContextKeyedAPIFactory<ExtensionSyncEventObserver>;
// Returns an empty string if the extension |app_origin| cannot be found
// in the installed extension list.
std::string GetExtensionId(const GURL& app_origin);
// BrowserContextKeyedAPI implementation.
static const char* service_name() { return "ExtensionSyncEventObserver"; }
static const bool kServiceIsCreatedWithBrowserContext = false;
content::BrowserContext* browser_context_;
// Not owned. If not null, then this is registered to SyncFileSystemService.
sync_file_system::SyncFileSystemService* sync_service_;
void BroadcastOrDispatchEvent(const GURL& app_origin,
const std::string& event_name,
scoped_ptr<base::ListValue> value);
DISALLOW_COPY_AND_ASSIGN(ExtensionSyncEventObserver);
};
template <>
void BrowserContextKeyedAPIFactory<
ExtensionSyncEventObserver>::DeclareFactoryDependencies();
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_API_SYNC_FILE_SYSTEM_EXTENSION_SYNC_EVENT_OBSERVER_H_
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