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author | Simon Hausmann <simon.hausmann@nokia.com> | 2012-01-06 14:44:00 +0100 |
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committer | Simon Hausmann <simon.hausmann@nokia.com> | 2012-01-06 14:44:00 +0100 |
commit | 40736c5763bf61337c8c14e16d8587db021a87d4 (patch) | |
tree | b17a9c00042ad89cb1308e2484491799aa14e9f8 /Source/WebCore/page/EventSource.h | |
download | qtwebkit-40736c5763bf61337c8c14e16d8587db021a87d4.tar.gz |
Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)
Diffstat (limited to 'Source/WebCore/page/EventSource.h')
-rw-r--r-- | Source/WebCore/page/EventSource.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/Source/WebCore/page/EventSource.h b/Source/WebCore/page/EventSource.h new file mode 100644 index 000000000..05181821b --- /dev/null +++ b/Source/WebCore/page/EventSource.h @@ -0,0 +1,127 @@ +/* + * Copyright (C) 2009 Ericsson AB + * All rights reserved. + * Copyright (C) 2010 Apple Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name of Ericsson nor the names of its contributors + * may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#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; + }; + +} // namespace WebCore + +#endif // EventSource_h |