/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
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 * 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.
 *     * 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.
 *     * Neither the name of Google Inc. nor the names of its
 * 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
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#include "third_party/blink/renderer/core/html/shadow/details_marker_control.h"

#include "third_party/blink/renderer/core/html/html_summary_element.h"
#include "third_party/blink/renderer/core/html/shadow/shadow_element_names.h"
#include "third_party/blink/renderer/core/layout/layout_details_marker.h"

namespace blink {

DetailsMarkerControl::DetailsMarkerControl(Document& document)
    : HTMLDivElement(document) {
  SetShadowPseudoId(shadow_element_names::kPseudoWebKitDetailsMarker);
}

LayoutObject* DetailsMarkerControl::CreateLayoutObject(const ComputedStyle&,
                                                       LegacyLayout) {
  UseCounter::Count(GetDocument(), WebFeature::kLegacyLayoutByDetailsMarker);
  return new LayoutDetailsMarker(this);
}

bool DetailsMarkerControl::LayoutObjectIsNeeded(
    const ComputedStyle& style) const {
  return SummaryElement()->IsMainSummary() &&
         HTMLDivElement::LayoutObjectIsNeeded(style);
}

HTMLSummaryElement* DetailsMarkerControl::SummaryElement() const {
  return To<HTMLSummaryElement>(OwnerShadowHost());
}

}  // namespace blink