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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* (C) 2007 David Smith (catfish.man@gmail.com)
* Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc.
* All rights reserved.
* Copyright (C) Research In Motion Limited 2010. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_DOM_FIRST_LETTER_PSEUDO_ELEMENT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_DOM_FIRST_LETTER_PSEUDO_ELEMENT_H_
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/dom/pseudo_element.h"
#include "third_party/blink/renderer/platform/wtf/casting.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
namespace blink {
class Element;
class LayoutText;
class LayoutTextFragment;
class CORE_EXPORT FirstLetterPseudoElement final : public PseudoElement {
public:
explicit FirstLetterPseudoElement(Element*);
FirstLetterPseudoElement(const FirstLetterPseudoElement&) = delete;
FirstLetterPseudoElement& operator=(const FirstLetterPseudoElement&) = delete;
~FirstLetterPseudoElement() override;
static LayoutText* FirstLetterTextLayoutObject(const Element&);
static unsigned FirstLetterLength(const String&);
void ClearRemainingTextLayoutObject();
LayoutTextFragment* RemainingTextLayoutObject() const {
return remaining_text_layout_object_;
}
void UpdateTextFragments();
void AttachLayoutTree(AttachContext&) override;
void DetachLayoutTree(bool performing_reattach) override;
Node* InnerNodeForHitTesting() const override;
private:
scoped_refptr<ComputedStyle> CustomStyleForLayoutObject() override;
void AttachFirstLetterTextLayoutObjects(LayoutText* first_letter_text);
LayoutTextFragment* remaining_text_layout_object_;
};
template <>
struct DowncastTraits<FirstLetterPseudoElement> {
static bool AllowFrom(const Node& node) {
return node.IsFirstLetterPseudoElement();
}
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_DOM_FIRST_LETTER_PSEUDO_ELEMENT_H_
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