Source/WebCore/html/HTMLMediaSource.h

/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
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 * notice, this list of conditions and the following disclaimer.
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 * in the documentation and/or other materials provided with the
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 */

#ifndef HTMLMediaSource_h
#define HTMLMediaSource_h

#include "URLRegistry.h"
#include <wtf/Forward.h>

namespace WebCore {

class MediaSourcePrivate;
class TimeRanges;

class HTMLMediaSource : public URLRegistrable {
public:
    static void setRegistry(URLRegistry*);
    static HTMLMediaSource* lookup(const String& url) { return s_registry ? static_cast<HTMLMediaSource*>(s_registry->lookup(url)) : 0; }

    void ref() { refHTMLMediaSource(); }
    void deref() { derefHTMLMediaSource(); }

    // Called when an HTMLMediaElement is attempting to attach to this object,
    // and helps enforce attachment to at most one element at a time.
    // If already attached, returns false. Otherwise, must be in
    // 'closed' state, and returns true to indicate attachment success.
    // Reattachment allowed by first calling close() (even if already in 'closed').
    virtual bool attachToElement() = 0;
    virtual void setPrivateAndOpen(PassRef<MediaSourcePrivate>) = 0;
    virtual void close() = 0;
    virtual bool isClosed() const = 0;
    virtual double duration() const = 0;
    virtual PassRefPtr<TimeRanges> buffered() const = 0;
    virtual void refHTMLMediaSource() = 0;
    virtual void derefHTMLMediaSource() = 0;

    // URLRegistrable
    virtual URLRegistry& registry() const OVERRIDE { return *s_registry; }

private:
    static URLRegistry* s_registry;
};

}

#endif