/*

 * Copyright (C) 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.

 */

#include "config.h"

#include "NetscapePlugInStreamLoader.h"

#include "FrameLoader.h"

#include "DocumentLoader.h"

namespace WebCore {

NetscapePlugInStreamLoader::NetscapePlugInStreamLoader(Frame* frame, NetscapePlugInStreamLoaderClient* client)

    : ResourceLoader(frame, true, true)

    , m_client(client)

{

}

NetscapePlugInStreamLoader::~NetscapePlugInStreamLoader()

{

}

PassRefPtr<NetscapePlugInStreamLoader> NetscapePlugInStreamLoader::create(Frame* frame, NetscapePlugInStreamLoaderClient* client)

{

    return adoptRef(new NetscapePlugInStreamLoader(frame, client));

}

bool NetscapePlugInStreamLoader::isDone() const

{

    return !m_client;

}

void NetscapePlugInStreamLoader::releaseResources()

{

    m_client = 0;

    ResourceLoader::releaseResources();

}

void NetscapePlugInStreamLoader::didReceiveResponse(const ResourceResponse& response)

{

    RefPtr<NetscapePlugInStreamLoader> protect(this);

    m_client->didReceiveResponse(this, response);

    // Don't continue if the stream is cancelled

    if (!m_client)

        return;

    ResourceLoader::didReceiveResponse(response);

    // Don't continue if the stream is cancelled

    if (!m_client)

        return;

    if (!response.isHTTP())

        return;

    if (m_client->wantsAllStreams())

        return;

    if (response.httpStatusCode() < 100 || response.httpStatusCode() >= 400)

        didCancel(frameLoader()->fileDoesNotExistError(response));

}

void NetscapePlugInStreamLoader::didReceiveData(const char* data, int length, long long lengthReceived, bool allAtOnce)

{

    RefPtr<NetscapePlugInStreamLoader> protect(this);

    m_client->didReceiveData(this, data, length);

    ResourceLoader::didReceiveData(data, length, lengthReceived, allAtOnce);

}

void NetscapePlugInStreamLoader::didFinishLoading()

{

    RefPtr<NetscapePlugInStreamLoader> protect(this);

    m_documentLoader->removePlugInStreamLoader(this);

    m_client->didFinishLoading(this);

    ResourceLoader::didFinishLoading();

}

void NetscapePlugInStreamLoader::didFail(const ResourceError& error)

{

    RefPtr<NetscapePlugInStreamLoader> protect(this);

    m_documentLoader->removePlugInStreamLoader(this);

    m_client->didFail(this, error);

    ResourceLoader::didFail(error);

}

void NetscapePlugInStreamLoader::didCancel(const ResourceError& error)

{

    RefPtr<NetscapePlugInStreamLoader> protect(this);

    m_client->didFail(this, error);

    // If calling didFail spins the run loop the stream loader can reach the terminal state.

    // If that's the case we just return early.

    if (reachedTerminalState())

        return;

    // We need to remove the stream loader after the call to didFail, since didFail can 

    // spawn a new run loop and if the loader has been removed it won't be deferred when

    // the document loader is asked to defer loading.

    m_documentLoader->removePlugInStreamLoader(this);

    ResourceLoader::didCancel(error);

}

}