--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/xml/XMLHttpRequest.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,199 @@
+/*
+ *  Copyright (C) 2003, 2006, 2008 Apple Inc. All rights reserved.
+ *  Copyright (C) 2005, 2006 Alexey Proskuryakov <ap@nypop.com>
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef XMLHttpRequest_h
+#define XMLHttpRequest_h
+
+#include "ActiveDOMObject.h"
+#include "AtomicStringHash.h"
+#include "EventListener.h"
+#include "EventNames.h"
+#include "EventTarget.h"
+#include "FormData.h"
+#include "ResourceResponse.h"
+#include "ScriptString.h"
+#include "ThreadableLoaderClient.h"
+#include "XMLHttpRequestProgressEventThrottle.h"
+#include <wtf/OwnPtr.h>
+
+namespace WebCore {
+
+class Blob;
+class Document;
+class DOMFormData;
+class ResourceRequest;
+class TextResourceDecoder;
+class ThreadableLoader;
+
+class XMLHttpRequest : public RefCounted<XMLHttpRequest>, public EventTarget, private ThreadableLoaderClient, public ActiveDOMObject {
+public:
+    static PassRefPtr<XMLHttpRequest> create(ScriptExecutionContext* context) { return adoptRef(new XMLHttpRequest(context)); }
+    ~XMLHttpRequest();
+
+    // These exact numeric values are important because JS expects them.
+    enum State {
+        UNSENT = 0,
+        OPENED = 1,
+        HEADERS_RECEIVED = 2,
+        LOADING = 3,
+        DONE = 4
+    };
+
+    virtual XMLHttpRequest* toXMLHttpRequest() { return this; }
+
+    virtual void contextDestroyed();
+    virtual bool canSuspend() const;
+    virtual void suspend();
+    virtual void resume();
+    virtual void stop();
+
+    virtual ScriptExecutionContext* scriptExecutionContext() const;
+
+    String statusText(ExceptionCode&) const;
+    int status(ExceptionCode&) const;
+    State readyState() const;
+    bool withCredentials() const { return m_includeCredentials; }
+    void setWithCredentials(bool, ExceptionCode&);
+    void open(const String& method, const KURL&, ExceptionCode&);
+    void open(const String& method, const KURL&, bool async, ExceptionCode&);
+    void open(const String& method, const KURL&, bool async, const String& user, ExceptionCode&);
+    void open(const String& method, const KURL&, bool async, const String& user, const String& password, ExceptionCode&);
+    void send(ExceptionCode&);
+    void send(Document*, ExceptionCode&);
+    void send(const String&, ExceptionCode&);
+    void send(Blob*, ExceptionCode&);
+    void send(DOMFormData*, ExceptionCode&);
+    void abort();
+    void setRequestHeader(const AtomicString& name, const String& value, ExceptionCode&);
+    void overrideMimeType(const String& override);
+    String getAllResponseHeaders(ExceptionCode&) const;
+    String getResponseHeader(const AtomicString& name, ExceptionCode&) const;
+    const ScriptString& responseText() const;
+    Document* responseXML() const;
+    void setLastSendLineNumber(unsigned lineNumber) { m_lastSendLineNumber = lineNumber; }
+    void setLastSendURL(const String& url) { m_lastSendURL = url; }
+
+    XMLHttpRequestUpload* upload();
+    XMLHttpRequestUpload* optionalUpload() const { return m_upload.get(); }
+
+    DEFINE_ATTRIBUTE_EVENT_LISTENER(readystatechange);
+    DEFINE_ATTRIBUTE_EVENT_LISTENER(abort);
+    DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
+    DEFINE_ATTRIBUTE_EVENT_LISTENER(load);
+    DEFINE_ATTRIBUTE_EVENT_LISTENER(loadstart);
+    DEFINE_ATTRIBUTE_EVENT_LISTENER(progress);
+
+    using RefCounted<XMLHttpRequest>::ref;
+    using RefCounted<XMLHttpRequest>::deref;
+
+private:
+    XMLHttpRequest(ScriptExecutionContext*);
+
+    virtual void refEventTarget() { ref(); }
+    virtual void derefEventTarget() { deref(); }
+    virtual EventTargetData* eventTargetData();
+    virtual EventTargetData* ensureEventTargetData();
+
+    Document* document() const;
+
+#if ENABLE(DASHBOARD_SUPPORT)
+    bool usesDashboardBackwardCompatibilityMode() const;
+#endif
+
+    virtual void didSendData(unsigned long long bytesSent, unsigned long long totalBytesToBeSent);
+    virtual void didReceiveResponse(const ResourceResponse&);
+    virtual void didReceiveData(const char* data, int lengthReceived);
+    virtual void didFinishLoading(unsigned long identifier);
+    virtual void didFail(const ResourceError&);
+    virtual void didFailRedirectCheck();
+    virtual void didReceiveAuthenticationCancellation(const ResourceResponse&);
+
+    String responseMIMEType() const;
+    bool responseIsXML() const;
+
+    bool initSend(ExceptionCode&);
+
+    String getRequestHeader(const AtomicString& name) const;
+    void setRequestHeaderInternal(const AtomicString& name, const String& value);
+    bool isSafeRequestHeader(const String&) const;
+
+    void changeState(State newState);
+    void callReadyStateChangeListener();
+    void dropProtection();
+    void internalAbort();
+    void clearResponse();
+    void clearRequest();
+
+    void createRequest(ExceptionCode&);
+
+    void genericError();
+    void networkError();
+    void abortError();
+
+    RefPtr<XMLHttpRequestUpload> m_upload;
+
+    KURL m_url;
+    String m_method;
+    HTTPHeaderMap m_requestHeaders;
+    RefPtr<FormData> m_requestEntityBody;
+    String m_mimeTypeOverride;
+    bool m_async;
+    bool m_includeCredentials;
+
+    RefPtr<ThreadableLoader> m_loader;
+    State m_state;
+
+    ResourceResponse m_response;
+    String m_responseEncoding;
+
+    RefPtr<TextResourceDecoder> m_decoder;
+
+    // Unlike most strings in the DOM, we keep this as a ScriptString, not a WebCore::String.
+    // That's because these strings can easily get huge (they are filled from the network with
+    // no parsing) and because JS can easily observe many intermediate states, so it's very useful
+    // to be able to share the buffer with JavaScript versions of the whole or partial string.
+    // In contrast, this string doesn't interact much with the rest of the engine so it's not that
+    // big a cost that it isn't a String.
+    ScriptString m_responseText;
+    mutable bool m_createdDocument;
+    mutable RefPtr<Document> m_responseXML;
+
+    bool m_error;
+
+    bool m_uploadEventsAllowed;
+    bool m_uploadComplete;
+
+    bool m_sameOriginRequest;
+    bool m_didTellLoaderAboutRequest;
+
+    // Used for onprogress tracking
+    long long m_receivedLength;
+
+    unsigned m_lastSendLineNumber;
+    String m_lastSendURL;
+    ExceptionCode m_exceptionCode;
+
+    EventTargetData m_eventTargetData;
+
+    XMLHttpRequestProgressEventThrottle m_progressEventThrottle;
+};
+
+} // namespace WebCore
+
+#endif // XMLHttpRequest_h