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// Copyright 2015 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 GeneratedChildren_h
#define GeneratedChildren_h
#include "core/html_element_type_helpers.h"
#include "core/layout/LayoutObject.h"
namespace blink {
// We only create "generated" child layoutObjects like one for first-letter if:
// - the firstLetterBlock can have children in the DOM and
// - the block doesn't have any special assumption on its text children.
// This correctly prevents form controls from having such layoutObjects.
static bool CanHaveGeneratedChildren(const LayoutObject& layout_object) {
// FIXME: LayoutMedia::layout makes assumptions about what children are
// allowed so we can't support generated content.
if (layout_object.IsMedia() || layout_object.IsTextControl() ||
layout_object.IsMenuList())
return false;
// Input elements can't have generated children, but button elements can.
// We'll write the code assuming any other button types that might emerge in
// the future can also have children.
if (layout_object.IsLayoutButton())
return !IsHTMLInputElement(*layout_object.GetNode());
return layout_object.CanHaveChildren();
}
} // namespace blink
#endif // GeneratedChildren_h