xref: /external/webkit/Source/WebKit/chromium/public/WebURLLoader.h

/*
 * Copyright (C) 2009, 2011 Google 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:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * 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.
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 * 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
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 */

#ifndef WebURLLoader_h
#define WebURLLoader_h

#include "WebCommon.h"

namespace WebKit {

class WebData;
class WebURLLoaderClient;
class WebURLRequest;
class WebURLResponse;
struct WebURLError;

class WebURLLoader {
public:
    // The WebURLLoader may be deleted in a call to its client.
    virtual ~WebURLLoader() {}

    // Load the request synchronously, returning results directly to the
    // caller upon completion.  There is no mechanism to interrupt a
    // synchronous load!!
    virtual void loadSynchronously(const WebURLRequest&,
        WebURLResponse&, WebURLError&, WebData& data) = 0;

    // Load the request asynchronously, sending notifications to the given
    // client.  The client will receive no further notifications if the
    // loader is disposed before it completes its work.
    virtual void loadAsynchronously(const WebURLRequest&,
        WebURLLoaderClient*) = 0;

    // Cancels an asynchronous load.  This will appear as a load error to
    // the client.
    virtual void cancel() = 0;

    // Suspends/resumes an asynchronous load.
    virtual void setDefersLoading(bool) = 0;
};

} // namespace WebKit

#endif