/*
 * Copyright (C) 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:
 * 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 INC. 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 INC. 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 "MediaStreamList.h"

#if ENABLE(MEDIA_STREAM)

namespace WebCore {

PassRefPtr<MediaStreamList> MediaStreamList::create()
{
    return adoptRef(new MediaStreamList());
}

MediaStreamList::MediaStreamList()
{
}

MediaStreamList::~MediaStreamList()
{
}

unsigned MediaStreamList::length() const
{
    return m_streams.size();
}

PassRefPtr<MediaStream> MediaStreamList::item(unsigned index) const
{
    HashMap<String, RefPtr<MediaStream> >::const_iterator i = m_streams.begin();
    for (unsigned j = 0; i != m_streams.end(); ++i, ++j) {
        if (j == index)
            return i->second;
    }
    return PassRefPtr<MediaStream>();
}

void MediaStreamList::add(PassRefPtr<MediaStream> stream)
{
    RefPtr<MediaStream> s = stream;
    ASSERT(!contains(s));
    m_streams.add(s->label(), s);
}

void MediaStreamList::remove(PassRefPtr<MediaStream> stream)
{
    RefPtr<MediaStream> s = stream;
    ASSERT(contains(s));
    m_streams.remove(s->label());
}

bool MediaStreamList::contains(PassRefPtr<MediaStream> stream) const
{
    RefPtr<MediaStream> s = stream;
    return m_streams.contains(s->label());
}

bool MediaStreamList::contains(const String& label) const
{
    return m_streams.contains(label);
}

PassRefPtr<MediaStream> MediaStreamList::get(const String& label) const
{
    return m_streams.get(label);
}


} // namespace WebCore

#endif // ENABLE(MEDIA_STREAM)