#pragma once
#include "ActiveDOMObject.h"
#include "EventTarget.h"
#include "ExceptionOr.h"
#include <wtf/URL.h>
#include "ThreadableLoaderClient.h"
#include "Timer.h"
#include <wtf/Vector.h>
namespace WebCore {
class MessageEvent;
class TextResourceDecoder;
class ThreadableLoader;
class EventSource final : public RefCounted<EventSource>, public EventTargetWithInlineData, private ThreadableLoaderClient, public ActiveDOMObject {
WTF_MAKE_FAST_ALLOCATED;
public:
struct Init {
bool withCredentials;
};
static ExceptionOr<Ref<EventSource>> create(ScriptExecutionContext&, const String& url, const Init&);
virtual ~EventSource();
const String& url() const;
bool withCredentials() const;
using State = short;
static const State CONNECTING = 0;
static const State OPEN = 1;
static const State CLOSED = 2;
State readyState() const;
void close();
using RefCounted::ref;
using RefCounted::deref;
private:
EventSource(ScriptExecutionContext&, const URL&, const Init&);
EventTargetInterface eventTargetInterface() const final { return EventSourceEventTargetInterfaceType; }
ScriptExecutionContext* scriptExecutionContext() const final { return ActiveDOMObject::scriptExecutionContext(); }
void refEventTarget() final { ref(); }
void derefEventTarget() final { deref(); }
void didReceiveResponse(unsigned long, const ResourceResponse&) final;
void didReceiveData(const char*, int) final;
void didFinishLoading(unsigned long) final;
void didFail(const ResourceError&) final;
void stop() final;
const char* activeDOMObjectName() const final;
bool canSuspendForDocumentSuspension() const final;
void connect();
void networkRequestEnded();
void scheduleInitialConnect();
void scheduleReconnect();
void abortConnectionAttempt();
void parseEventStream();
void parseEventStreamLine(unsigned position, Optional<unsigned> fieldLength, unsigned lineLength);
void dispatchMessageEvent();
bool responseIsValid(const ResourceResponse&) const;
static const uint64_t defaultReconnectDelay;
URL m_url;
bool m_withCredentials;
State m_state { CONNECTING };
Ref<TextResourceDecoder> m_decoder;
RefPtr<ThreadableLoader> m_loader;
Timer m_connectTimer;
Vector<UChar> m_receiveBuffer;
bool m_discardTrailingNewline { false };
bool m_requestInFlight { false };
AtomicString m_eventName;
Vector<UChar> m_data;
String m_currentlyParsedEventId;
String m_lastEventId;
uint64_t m_reconnectDelay { defaultReconnectDelay };
String m_eventStreamOrigin;
};
inline const String& EventSource::url() const
{
return m_url.string();
}
inline bool EventSource::withCredentials() const
{
return m_withCredentials;
}
inline EventSource::State EventSource::readyState() const
{
return m_state;
}
}