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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. 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_TEXT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_DOM_TEXT_H_
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/css/style_recalc_change.h"
#include "third_party/blink/renderer/core/dom/character_data.h"
#include "third_party/blink/renderer/platform/wtf/casting.h"
namespace blink {
class ExceptionState;
class LayoutText;
class WhitespaceAttacher;
struct TextDiffRange;
class CORE_EXPORT Text : public CharacterData {
DEFINE_WRAPPERTYPEINFO();
public:
static constexpr unsigned kDefaultLengthLimit = 1 << 16;
static Text* Create(Document&, const String&);
static Text* Create(Document&, String&&);
static Text* CreateEditingText(Document&, const String&);
Text(TreeScope& tree_scope, const String& data, ConstructionType type)
: CharacterData(tree_scope, data, type) {}
Text(TreeScope& tree_scope, String&& data, ConstructionType type)
: CharacterData(tree_scope, std::move(data), type) {}
// Note that this one is defined in layout/layout_text.h, because it needs
// LayoutText to be defined, and that's not possible here.
inline LayoutText* GetLayoutObject() const;
// mergeNextSiblingNodesIfPossible() merges next sibling nodes if possible
// then returns a node not merged.
Node* MergeNextSiblingNodesIfPossible();
Text* splitText(unsigned offset, ExceptionState&);
// DOM Level 3: http://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-1312295772
String wholeText() const;
Text* ReplaceWholeText(const String&);
void RecalcTextStyle(const StyleRecalcChange);
void RebuildTextLayoutTree(WhitespaceAttacher&);
bool TextLayoutObjectIsNeeded(const AttachContext&,
const ComputedStyle&) const;
LayoutText* CreateTextLayoutObject();
void UpdateTextLayoutObject(const TextDiffRange&);
void AttachLayoutTree(AttachContext&) final;
void ReattachLayoutTreeIfNeeded(AttachContext&);
bool CanContainRangeEndPoint() const final { return true; }
void Trace(Visitor*) const override;
private:
String nodeName() const override;
// This will catch anyone doing an unnecessary check.
bool IsTextNode() const = delete;
CharacterData* CloneWithData(Document&, const String&) const override;
};
template <>
struct DowncastTraits<Text> {
static bool AllowFrom(const Node& node) { return node.IsTextNode(); }
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_DOM_TEXT_H_
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