File: LayoutBlockItem.h

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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef LayoutBlockItem_h
#define LayoutBlockItem_h

#include "core/layout/LayoutBlock.h"
#include "core/layout/api/LayoutBoxItem.h"

namespace blink {

class LayoutBlockItem : public LayoutBoxItem {
 public:
  explicit LayoutBlockItem(LayoutBlock* layoutBlock)
      : LayoutBoxItem(layoutBlock) {}

  explicit LayoutBlockItem(const LayoutBoxItem& item) : LayoutBoxItem(item) {
    SECURITY_DCHECK(!item || item.isLayoutBlock());
  }

  explicit LayoutBlockItem(std::nullptr_t) : LayoutBoxItem(nullptr) {}

  LayoutBlockItem() {}

  bool recalcOverflowAfterStyleChange() {
    return toBlock()->recalcOverflowAfterStyleChange();
  }

  LayoutItem firstChild() const { return LayoutItem(toBlock()->firstChild()); }

 private:
  LayoutBlock* toBlock() { return toLayoutBlock(layoutObject()); }
  const LayoutBlock* toBlock() const { return toLayoutBlock(layoutObject()); }
};

}  // namespace blink

#endif  // LayoutBlockItem_h