/*
 * Copyright (C) 2003 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 COMPUTER, INC. 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 WebCoreResourceLoader_h
#define WebCoreResourceLoader_h

#include <glib.h>

#include "WebCoreFoundation.h"

class KWIQResponse;

/**@protocol*/
/** Client interface for resource loading
 * client implements loading and uses these functions to pass data to the engine
 */ 
class WebCoreResourceLoader : public WebCoreNSObject
{
public:
    virtual ~WebCoreResourceLoader() {}
    virtual void receivedResponse(KWIQResponse* response)=0;
    virtual void redirectedToURL(const gchar* URL)=0;    
    virtual void addData(const void *data,unsigned int length)=0;

    // Either finish, reportError, or cancel must be called before the
    // loader is released, but never more than one.    
    virtual void finish(void)=0;
    virtual void reportError(void)=0;
    virtual void cancel(void)=0;
};

/**@protocol*/
/**
 * Client provides a WebCoreResourceHandle per resource request
 *
 * library calls cancel() to stop the transfer,
 *               release() to give up the handle 
 */
class WebCoreResourceHandle : public WebCoreNSObject
{
public:
    virtual ~WebCoreResourceHandle() {}
    /** called when library wants to stop the transfer*/  
    virtual void cancel()=0;
    
};

#endif