#ifndef EventSource_h
#define EventSource_h
#include "ActiveDOMObject.h"
#include "EventTarget.h"
#include "KURL.h"
#include "ThreadableLoaderClient.h"
#include "Timer.h"
#include <wtf/RefPtr.h>
#include <wtf/Vector.h>
namespace WebCore {
class MessageEvent;
class ResourceResponse;
class TextResourceDecoder;
class ThreadableLoader;
class EventSource : public RefCounted<EventSource>, public EventTarget, private ThreadableLoaderClient, public ActiveDOMObject {
WTF_MAKE_FAST_ALLOCATED;
public:
static PassRefPtr<EventSource> create(ScriptExecutionContext*, const String& url, ExceptionCode&);
virtual ~EventSource();
static const unsigned long long defaultReconnectDelay;
String url() const;
enum State {
CONNECTING = 0,
OPEN = 1,
CLOSED = 2,
};
State readyState() const;
DEFINE_ATTRIBUTE_EVENT_LISTENER(open);
DEFINE_ATTRIBUTE_EVENT_LISTENER(message);
DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
void close();
using RefCounted<EventSource>::ref;
using RefCounted<EventSource>::deref;
virtual const AtomicString& interfaceName() const;
virtual ScriptExecutionContext* scriptExecutionContext() const;
virtual void stop();
private:
EventSource(const KURL&, ScriptExecutionContext*);
virtual void refEventTarget() { ref(); }
virtual void derefEventTarget() { deref(); }
virtual EventTargetData* eventTargetData();
virtual EventTargetData* ensureEventTargetData();
virtual void didReceiveResponse(unsigned long, const ResourceResponse&);
virtual void didReceiveData(const char*, int);
virtual void didFinishLoading(unsigned long, double);
virtual void didFail(const ResourceError&);
virtual void didFailRedirectCheck();
void connect();
void networkRequestEnded();
void scheduleReconnect();
void reconnectTimerFired(Timer<EventSource>*);
void parseEventStream();
void parseEventStreamLine(unsigned int pos, int fieldLength, int lineLength);
PassRefPtr<MessageEvent> createMessageEvent();
KURL m_url;
State m_state;
RefPtr<TextResourceDecoder> m_decoder;
RefPtr<ThreadableLoader> m_loader;
Timer<EventSource> m_reconnectTimer;
Vector<UChar> m_receiveBuf;
bool m_discardTrailingNewline;
bool m_requestInFlight;
String m_eventName;
Vector<UChar> m_data;
String m_currentlyParsedEventId;
String m_lastEventId;
unsigned long long m_reconnectDelay;
String m_origin;
EventTargetData m_eventTargetData;
};
}
#endif // EventSource_h