1 /* 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) 4 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public License 17 * along with this library; see the file COPYING.LIB. If not, write to 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 * 21 */ 22 23 #ifndef Text_h 24 #define Text_h 25 26 #include "core/dom/CharacterData.h" 27 28 namespace blink { 29 30 class ExceptionState; 31 class RenderText; 32 33 class Text : public CharacterData { 34 DEFINE_WRAPPERTYPEINFO(); 35 public: 36 static const unsigned defaultLengthLimit = 1 << 16; 37 38 static PassRefPtrWillBeRawPtr<Text> create(Document&, const String&); 39 static PassRefPtrWillBeRawPtr<Text> createEditingText(Document&, const String&); 40 41 RenderText* renderer() const; 42 43 // mergeNextSiblingNodesIfPossible() merges next sibling nodes if possible 44 // then returns a node not merged. 45 PassRefPtrWillBeRawPtr<Node> mergeNextSiblingNodesIfPossible(); 46 PassRefPtrWillBeRawPtr<Text> splitText(unsigned offset, ExceptionState&); 47 48 // DOM Level 3: http://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-1312295772 49 50 String wholeText() const; 51 PassRefPtrWillBeRawPtr<Text> replaceWholeText(const String&); 52 53 void recalcTextStyle(StyleRecalcChange, Text* nextTextSibling); 54 bool textRendererIsNeeded(const RenderStyle&, const RenderObject& parent); 55 RenderText* createTextRenderer(RenderStyle*); 56 void updateTextRenderer(unsigned offsetOfReplacedData, unsigned lengthOfReplacedData, RecalcStyleBehavior = DoNotRecalcStyle); 57 58 virtual void attach(const AttachContext& = AttachContext()) OVERRIDE FINAL; 59 canContainRangeEndPoint()60 virtual bool canContainRangeEndPoint() const OVERRIDE FINAL { return true; } 61 virtual NodeType nodeType() const OVERRIDE; 62 63 protected: Text(TreeScope & treeScope,const String & data,ConstructionType type)64 Text(TreeScope& treeScope, const String& data, ConstructionType type) 65 : CharacterData(treeScope, data, type) { } 66 67 private: 68 virtual String nodeName() const OVERRIDE; 69 virtual PassRefPtrWillBeRawPtr<Node> cloneNode(bool deep = true) OVERRIDE FINAL; 70 71 bool isTextNode() const WTF_DELETED_FUNCTION; // This will catch anyone doing an unnecessary check. 72 73 bool needsWhitespaceRenderer(); 74 75 virtual PassRefPtrWillBeRawPtr<Text> cloneWithData(const String&); 76 77 #ifndef NDEBUG 78 virtual void formatForDebugger(char* buffer, unsigned length) const OVERRIDE; 79 #endif 80 }; 81 82 DEFINE_NODE_TYPE_CASTS(Text, isTextNode()); 83 84 } // namespace blink 85 86 #endif // Text_h 87