/*

 * Copyright (C) 2009 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.

 *     * Neither the name of Google Inc. 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 WebURLLoaderClient_h

#define WebURLLoaderClient_h

namespace WebKit {

class WebURLLoader;

class WebURLRequest;

class WebURLResponse;

struct WebURLError;

class WebURLLoaderClient {

public:

    // Called when following a redirect.  |newRequest| contains the request

    // generated by the redirect.  The client may modify |newRequest|.

    virtual void willSendRequest(

        WebURLLoader*, WebURLRequest& newRequest, const WebURLResponse& redirectResponse) { }

    // Called to report upload progress.  The bytes reported correspond to

    // the HTTP message body.

    virtual void didSendData(

        WebURLLoader*, unsigned long long bytesSent, unsigned long long totalBytesToBeSent) { }

    // Called when response headers are received.

    virtual void didReceiveResponse(WebURLLoader*, const WebURLResponse&) { }

    // Called when a chunk of response data is downloaded.  This is only called

    // if WebURLRequest's downloadToFile flag was set to true.

    virtual void didDownloadData(WebURLLoader*, int dataLength) { }

    // Called when a chunk of response data is received.

    virtual void didReceiveData(WebURLLoader*, const char* data, int dataLength) { }

    // Called when a chunk of renderer-generated metadata is received from the cache.

    virtual void didReceiveCachedMetadata(WebURLLoader*, const char* data, int dataLength) { }

    // Called when the load completes successfully.

    virtual void didFinishLoading(WebURLLoader*) { }

    // Called when the load completes with an error.

    virtual void didFail(WebURLLoader*, const WebURLError&) { }

protected:

    ~WebURLLoaderClient() { }

};

} // namespace WebKit

#endif