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// Copyright 2014 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_CHROMEOS_FILE_SYSTEM_PROVIDER_OPERATIONS_OPERATION_H_
#define CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_OPERATIONS_OPERATION_H_
#include <string>
#include "base/files/file.h"
#include "base/memory/scoped_ptr.h"
#include "chrome/browser/chromeos/file_system_provider/provided_file_system_info.h"
#include "chrome/browser/chromeos/file_system_provider/request_manager.h"
#include "webkit/browser/fileapi/async_file_util.h"
namespace base {
class DictionaryValue;
} // namespace base
namespace extensions {
struct Event;
class EventRouter;
} // namespace extensions
namespace chromeos {
namespace file_system_provider {
namespace operations {
// Base class for operation bridges between fileapi and providing extensions.
class Operation : public RequestManager::HandlerInterface {
public:
typedef base::Callback<bool(scoped_ptr<extensions::Event> event)>
DispatchEventImplCallback;
Operation(extensions::EventRouter* event_router,
const ProvidedFileSystemInfo& file_system_info);
virtual ~Operation();
// RequestManager::HandlerInterface overrides.
virtual bool Execute(int request_id) OVERRIDE = 0;
virtual void OnSuccess(int request_id,
scoped_ptr<RequestValue> result,
bool has_more) OVERRIDE = 0;
virtual void OnError(int request_id, base::File::Error error) OVERRIDE = 0;
// Sets custom dispatchign event implementation for tests.
void SetDispatchEventImplForTesting(
const DispatchEventImplCallback& callback);
protected:
// Sends an event to the providing extension. Automatically adds the file
// system id and the request id fields. Returns false, if the providing
// extension does not handle the |event_name| event.
bool SendEvent(int request_id,
const std::string& event_name,
scoped_ptr<base::DictionaryValue> options);
ProvidedFileSystemInfo file_system_info_;
private:
DispatchEventImplCallback dispatch_event_impl_;
DISALLOW_COPY_AND_ASSIGN(Operation);
};
} // namespace operations
} // namespace file_system_provider
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_OPERATIONS_OPERATION_H_
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