text: /*
   * Copyright (C) 2007, 2008, 2010 Apple 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 COMPUTER, INC. ``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 COMPUTER, INC. OR
   * 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.
   */
  
  #ifndef HTMLSourceElement_h
  #define HTMLSourceElement_h
  
  #include "core/css/MediaQueryListListener.h"
  #include "core/html/HTMLElement.h"
  #include "platform/Timer.h"
  
  namespace blink {
  
  template<typename T> class EventSender;
  using SourceEventSender = EventSender<HTMLSourceElement>;
  
  class HTMLSourceElement final : public HTMLElement {
      DEFINE_WRAPPERTYPEINFO();
  public:
      class Listener;
  
      DECLARE_NODE_FACTORY(HTMLSourceElement);
      ~HTMLSourceElement() override;
  
      const AtomicString& type() const;
      void setSrc(const String&);
      void setType(const AtomicString&);
  
      void scheduleErrorEvent();
      void cancelPendingErrorEvent();
  
      void dispatchPendingEvent(SourceEventSender*);
  
      bool mediaQueryMatches() const;
  
      DECLARE_VIRTUAL_TRACE();
  
  private:
      explicit HTMLSourceElement(Document&);
  
      void didMoveToNewDocument(Document& oldDocument) override;
  
      InsertionNotificationRequest insertedInto(ContainerNode*) override;
      void removedFrom(ContainerNode*) override;
      bool isURLAttribute(const Attribute&) const override;
      void parseAttribute(const QualifiedName&, const AtomicString&, const AtomicString&) override;
  
      void notifyMediaQueryChanged();
      void createMediaQueryList(const AtomicString& media);
  
      RefPtrWillBeMember<MediaQueryList> m_mediaQueryList;
      RefPtrWillBeMember<Listener> m_listener;
  };
  
  } // namespace blink
  
  #endif // HTMLSourceElement_h
  