Source/modules/mediasource/SourceBufferList.cpp

/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
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 * 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.
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 * 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
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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#include "config.h"
#include "modules/mediasource/SourceBufferList.h"

#include "core/dom/Event.h"
#include "core/dom/GenericEventQueue.h"
#include "modules/mediasource/SourceBuffer.h"

namespace WebCore {

SourceBufferList::SourceBufferList(ScriptExecutionContext* context, GenericEventQueue* asyncEventQueue)
    : m_scriptExecutionContext(context)
    , m_asyncEventQueue(asyncEventQueue)
{
    ScriptWrappable::init(this);
}

SourceBufferList::~SourceBufferList()
{
    ASSERT(m_list.isEmpty());
}

void SourceBufferList::add(PassRefPtr<SourceBuffer> buffer)
{
    m_list.append(buffer);
    scheduleEvent(eventNames().addsourcebufferEvent);
}

void SourceBufferList::remove(SourceBuffer* buffer)
{
    size_t index = m_list.find(buffer);
    if (index == notFound)
        return;
    m_list.remove(index);
    scheduleEvent(eventNames().removesourcebufferEvent);
}

void SourceBufferList::clear()
{
    m_list.clear();
    scheduleEvent(eventNames().removesourcebufferEvent);
}

void SourceBufferList::scheduleEvent(const AtomicString& eventName)
{
    ASSERT(m_asyncEventQueue);

    RefPtr<Event> event = Event::create(eventName, false, false);
    event->setTarget(this);

    m_asyncEventQueue->enqueueEvent(event.release());
}

const AtomicString& SourceBufferList::interfaceName() const
{
    return eventNames().interfaceForSourceBufferList;
}

ScriptExecutionContext* SourceBufferList::scriptExecutionContext() const
{
    return m_scriptExecutionContext;
}

EventTargetData* SourceBufferList::eventTargetData()
{
    return &m_eventTargetData;
}

EventTargetData* SourceBufferList::ensureEventTargetData()
{
    return &m_eventTargetData;
}

} // namespace WebCore