--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/loader/ResourceLoader.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,166 @@
+/*
+ * Copyright (C) 2005, 2006 Apple Computer, 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 Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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 ResourceLoader_h
+#define ResourceLoader_h
+
+#include "ResourceHandleClient.h"
+#include "ResourceRequest.h"
+#include "ResourceResponse.h"
+#include <wtf/RefCounted.h>
+#include "AuthenticationChallenge.h"
+#include "KURL.h"
+
+#include <wtf/Forward.h>
+
+namespace WebCore {
+
+    class ApplicationCacheHost;
+    class DocumentLoader;
+    class Frame;
+    class FrameLoader;
+    class ProtectionSpace;
+    class ResourceHandle;
+    class SharedBuffer;
+    
+    class ResourceLoader : public RefCounted<ResourceLoader>, protected ResourceHandleClient {
+    public:
+        virtual ~ResourceLoader();
+
+        void cancel();
+
+        virtual bool load(const ResourceRequest&);
+
+        FrameLoader* frameLoader() const;
+        DocumentLoader* documentLoader() const { return m_documentLoader.get(); }
+        
+        virtual void cancel(const ResourceError&);
+        ResourceError cancelledError();
+        ResourceError blockedError();
+        ResourceError cannotShowURLError();
+        
+        virtual void setDefersLoading(bool);
+
+        void setIdentifier(unsigned long identifier) { m_identifier = identifier; }
+        unsigned long identifier() const { return m_identifier; }
+
+        virtual void releaseResources();
+        const ResourceResponse& response() const;
+
+        virtual void addData(const char*, int, bool allAtOnce);
+        virtual PassRefPtr<SharedBuffer> resourceData();
+        void clearResourceData();
+        
+        virtual void willSendRequest(ResourceRequest&, const ResourceResponse& redirectResponse);
+        virtual void didSendData(unsigned long long bytesSent, unsigned long long totalBytesToBeSent);
+        virtual void didReceiveResponse(const ResourceResponse&);
+        virtual void didReceiveData(const char*, int, long long lengthReceived, bool allAtOnce);
+        virtual void didReceiveCachedMetadata(const char*, int) { }
+        void willStopBufferingData(const char*, int);
+        virtual void didFinishLoading();
+        virtual void didFail(const ResourceError&);
+
+        virtual bool shouldUseCredentialStorage();
+        virtual void didReceiveAuthenticationChallenge(const AuthenticationChallenge&);
+        void didCancelAuthenticationChallenge(const AuthenticationChallenge&);
+#if USE(PROTECTION_SPACE_AUTH_CALLBACK)
+        virtual bool canAuthenticateAgainstProtectionSpace(const ProtectionSpace&);
+#endif
+        virtual void receivedCancellation(const AuthenticationChallenge&);
+
+        // ResourceHandleClient
+        virtual void willSendRequest(ResourceHandle*, ResourceRequest&, const ResourceResponse& redirectResponse);
+        virtual void didSendData(ResourceHandle*, unsigned long long bytesSent, unsigned long long totalBytesToBeSent);
+        virtual void didReceiveResponse(ResourceHandle*, const ResourceResponse&);
+        virtual void didReceiveData(ResourceHandle*, const char*, int, int lengthReceived);
+        virtual void didReceiveCachedMetadata(ResourceHandle*, const char* data, int length) { didReceiveCachedMetadata(data, length); }
+        virtual void didFinishLoading(ResourceHandle*);
+        virtual void didFail(ResourceHandle*, const ResourceError&);
+        virtual void wasBlocked(ResourceHandle*);
+        virtual void cannotShowURL(ResourceHandle*);
+        virtual void willStopBufferingData(ResourceHandle*, const char* data, int length) { willStopBufferingData(data, length); } 
+        virtual bool shouldUseCredentialStorage(ResourceHandle*) { return shouldUseCredentialStorage(); }
+        virtual void didReceiveAuthenticationChallenge(ResourceHandle*, const AuthenticationChallenge& challenge) { didReceiveAuthenticationChallenge(challenge); } 
+        virtual void didCancelAuthenticationChallenge(ResourceHandle*, const AuthenticationChallenge& challenge) { didCancelAuthenticationChallenge(challenge); } 
+#if USE(PROTECTION_SPACE_AUTH_CALLBACK)
+        virtual bool canAuthenticateAgainstProtectionSpace(ResourceHandle*, const ProtectionSpace& protectionSpace) { return canAuthenticateAgainstProtectionSpace(protectionSpace); }
+#endif
+        virtual void receivedCancellation(ResourceHandle*, const AuthenticationChallenge& challenge) { receivedCancellation(challenge); }
+        virtual void willCacheResponse(ResourceHandle*, CacheStoragePolicy&);
+#if PLATFORM(MAC)
+        virtual NSCachedURLResponse* willCacheResponse(ResourceHandle*, NSCachedURLResponse*);
+#endif
+#if USE(CFNETWORK)
+        virtual bool shouldCacheResponse(ResourceHandle*, CFCachedURLResponseRef);
+#endif
+
+        ResourceHandle* handle() const { return m_handle.get(); }
+        bool sendResourceLoadCallbacks() const { return m_sendResourceLoadCallbacks; }
+
+        void setShouldBufferData(bool shouldBufferData);
+
+    protected:
+        ResourceLoader(Frame*, bool sendResourceLoadCallbacks, bool shouldContentSniff);
+
+#if ENABLE(OFFLINE_WEB_APPLICATIONS)
+        friend class ApplicationCacheHost;  // for access to request()
+#endif
+
+        virtual void didCancel(const ResourceError&);
+        void didFinishLoadingOnePart();
+
+        const ResourceRequest& request() const { return m_request; }
+        bool reachedTerminalState() const { return m_reachedTerminalState; }
+        bool cancelled() const { return m_cancelled; }
+        bool defersLoading() const { return m_defersLoading; }
+
+        RefPtr<ResourceHandle> m_handle;
+        RefPtr<Frame> m_frame;
+        RefPtr<DocumentLoader> m_documentLoader;
+        ResourceResponse m_response;
+        
+    private:
+        ResourceRequest m_request;
+        RefPtr<SharedBuffer> m_resourceData;
+        
+        unsigned long m_identifier;
+
+        bool m_reachedTerminalState;
+        bool m_cancelled;
+        bool m_calledDidFinishLoad;
+
+        bool m_sendResourceLoadCallbacks;
+        bool m_shouldContentSniff;
+        bool m_shouldBufferData;
+        bool m_defersLoading;
+        ResourceRequest m_deferredRequest;
+    };
+
+}
+
+#endif