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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_GENERATED_CHILDREN_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_GENERATED_CHILDREN_H_
#include "third_party/blink/renderer/core/html/forms/html_select_element.h"
#include "third_party/blink/renderer/core/html_element_type_helpers.h"
#include "third_party/blink/renderer/core/layout/layout_object.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() || layout_object.IsInputButton()) {
if (layout_object.IsMenuList() &&
To<HTMLSelectElement>(layout_object.GetNode())->IsAppearanceBase()) {
// appearance:base-select <select>s should be allowed to have ::after etc.
return true;
}
return false;
}
return layout_object.CanHaveChildren();
}
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_GENERATED_CHILDREN_H_
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