/*
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 * modification, are permitted provided that the following conditions are
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 *
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 * in the documentation and/or other materials provided with the
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 * this software without specific prior written permission.
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#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_HTML_MEDIA_HTML_MEDIA_SOURCE_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_MEDIA_HTML_MEDIA_SOURCE_H_

#include <memory>
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/fileapi/url_registry.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
#include "third_party/blink/renderer/platform/wtf/forward.h"

namespace blink {

class WebMediaSource;
class HTMLMediaElement;
class TimeRanges;
class TrackBase;

class CORE_EXPORT HTMLMediaSource : public URLRegistrable,
                                    public GarbageCollectedMixin {
 public:
  static void SetRegistry(URLRegistry*);
  static HTMLMediaSource* Lookup(const String& url) {
    return registry_ ? static_cast<HTMLMediaSource*>(registry_->Lookup(url))
                     : nullptr;
  }

  // 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').
  // Once attached, the source uses the element to synchronously service some
  // API operations like duration change that may need to initiate seek.
  virtual bool AttachToElement(HTMLMediaElement*) = 0;
  virtual void SetWebMediaSourceAndOpen(std::unique_ptr<WebMediaSource>) = 0;
  virtual void Close() = 0;
  virtual bool IsClosed() const = 0;
  virtual double duration() const = 0;
  virtual TimeRanges* Buffered() const = 0;
  virtual TimeRanges* Seekable() const = 0;
  virtual void OnTrackChanged(TrackBase*) = 0;

  // URLRegistrable
  URLRegistry& Registry() const override { return *registry_; }

 private:
  static URLRegistry* registry_;
};

}  // namespace blink

#endif