root/Source/core/loader/DocumentThreadableLoader.h

INCLUDED FROM

/*
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 * Copyright (C) 2013, Intel Corporation
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 * notice, this list of conditions and the following disclaimer.
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#ifndef DocumentThreadableLoader_h
#define DocumentThreadableLoader_h

#include "core/fetch/RawResource.h"
#include "core/fetch/ResourceOwner.h"
#include "core/loader/ThreadableLoader.h"
#include "platform/Timer.h"
#include "platform/network/ResourceError.h"
#include "wtf/Forward.h"
#include "wtf/OwnPtr.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefCounted.h"
#include "wtf/text/WTFString.h"

namespace WebCore {

class Document;
class KURL;
class ResourceRequest;
class SecurityOrigin;
class ThreadableLoaderClient;

class DocumentThreadableLoader FINAL : public RefCounted<DocumentThreadableLoader>, public ThreadableLoader, private ResourceOwner<RawResource>  {
    WTF_MAKE_FAST_ALLOCATED;
    public:
        static void loadResourceSynchronously(Document*, const ResourceRequest&, ThreadableLoaderClient&, const ThreadableLoaderOptions&);
        static PassRefPtr<DocumentThreadableLoader> create(Document*, ThreadableLoaderClient*, const ResourceRequest&, const ThreadableLoaderOptions&);
        virtual ~DocumentThreadableLoader();

        virtual void cancel() OVERRIDE;
        void setDefersLoading(bool);

        using RefCounted<DocumentThreadableLoader>::ref;
        using RefCounted<DocumentThreadableLoader>::deref;

    protected:
        virtual void refThreadableLoader() OVERRIDE { ref(); }
        virtual void derefThreadableLoader() OVERRIDE { deref(); }

    private:
        enum BlockingBehavior {
            LoadSynchronously,
            LoadAsynchronously
        };

        DocumentThreadableLoader(Document*, ThreadableLoaderClient*, BlockingBehavior, const ResourceRequest&, const ThreadableLoaderOptions&);

        // RawResourceClient
        virtual void dataSent(Resource*, unsigned long long bytesSent, unsigned long long totalBytesToBeSent) OVERRIDE;
        virtual void responseReceived(Resource*, const ResourceResponse&) OVERRIDE;
        virtual void dataReceived(Resource*, const char* data, int dataLength) OVERRIDE;
        virtual void redirectReceived(Resource*, ResourceRequest&, const ResourceResponse&) OVERRIDE;
        virtual void notifyFinished(Resource*) OVERRIDE;
        virtual void dataDownloaded(Resource*, int) OVERRIDE;

        void cancelWithError(const ResourceError&);
        void didReceiveResponse(unsigned long identifier, const ResourceResponse&);
        void didReceiveData(const char* data, int dataLength);
        void didFinishLoading(unsigned long identifier, double finishTime);
        void didTimeout(Timer<DocumentThreadableLoader>*);
        void makeCrossOriginAccessRequest(const ResourceRequest&);
        void preflightSuccess();
        void preflightFailure(const String& url, const String& errorDescription);

        void loadRequest(const ResourceRequest&);
        bool isAllowedRedirect(const KURL&) const;
        bool isAllowedByPolicy(const KURL&) const;

        SecurityOrigin* securityOrigin() const;

        ThreadableLoaderClient* m_client;
        Document* m_document;
        ThreadableLoaderOptions m_options;
        bool m_sameOriginRequest;
        bool m_simpleRequest;
        bool m_async;
        OwnPtr<ResourceRequest> m_actualRequest; // non-null during Access Control preflight checks
        Timer<DocumentThreadableLoader> m_timeoutTimer;
    };

} // namespace WebCore

#endif // DocumentThreadableLoader_h