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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 RespondWithObserver_h
#define RespondWithObserver_h
#include "core/dom/ContextLifecycleObserver.h"
#include "wtf/Forward.h"
#include "wtf/RefCounted.h"
namespace WebCore {
class ExecutionContext;
class Response;
class ScriptState;
class ScriptValue;
// This class observes the service worker's handling of a FetchEvent and
// notifies the client.
class RespondWithObserver FINAL : public ContextLifecycleObserver, public RefCounted<RespondWithObserver> {
public:
static PassRefPtr<RespondWithObserver> create(ExecutionContext*, int eventID);
~RespondWithObserver();
virtual void contextDestroyed() OVERRIDE;
void didDispatchEvent();
// Observes the promise and delays calling didHandleFetchEvent() until the
// given promise is resolved or rejected.
void respondWith(ScriptState*, const ScriptValue&);
void responseWasRejected();
void responseWasFulfilled(const ScriptValue&);
private:
class ThenFunction;
RespondWithObserver(ExecutionContext*, int eventID);
// Sends a response back to the client. The null response means to fallback
// to native.
void sendResponse(PassRefPtr<Response>);
int m_eventID;
enum State { Initial, Pending, Done };
State m_state;
};
} // namespace WebCore
#endif // RespondWithObserver_h
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