1 /* 2 * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org) 3 * (C) 1999 Antti Koivisto (koivisto (at) 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 WebCore { 29 30 class ExceptionState; 31 class RenderText; 32 class ScriptExecutionContext; 33 34 class Text : public CharacterData { 35 public: 36 static const unsigned defaultLengthLimit = 1 << 16; 37 38 static PassRefPtr<Text> create(Document*, const String&); 39 static PassRefPtr<Text> createWithLengthLimit(Document*, const String&, unsigned positionInString, unsigned lengthLimit = defaultLengthLimit); 40 static PassRefPtr<Text> createEditingText(Document*, const String&); 41 42 PassRefPtr<Text> splitText(unsigned offset, ExceptionState&); 43 44 // DOM Level 3: http://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-1312295772 45 46 String wholeText() const; 47 PassRefPtr<Text> replaceWholeText(const String&); 48 49 bool recalcTextStyle(StyleChange); 50 bool textRendererIsNeeded(const NodeRenderingContext&); 51 virtual RenderText* createTextRenderer(RenderStyle*); 52 void updateTextRenderer(unsigned offsetOfReplacedData, unsigned lengthOfReplacedData); 53 54 virtual void attach(const AttachContext& = AttachContext()) OVERRIDE FINAL; 55 56 virtual bool canContainRangeEndPoint() const OVERRIDE FINAL { return true; } 57 virtual NodeType nodeType() const OVERRIDE; 58 59 protected: 60 Text(TreeScope* treeScope, const String& data, ConstructionType type) 61 : CharacterData(treeScope, data, type) 62 { 63 ScriptWrappable::init(this); 64 } 65 66 private: 67 virtual String nodeName() const OVERRIDE; 68 virtual PassRefPtr<Node> cloneNode(bool deep = true) OVERRIDE FINAL; 69 virtual bool childTypeAllowed(NodeType) const OVERRIDE; 70 71 bool needsWhitespaceRenderer(); 72 73 virtual PassRefPtr<Text> cloneWithData(const String&); 74 75 #ifndef NDEBUG 76 virtual void formatForDebugger(char* buffer, unsigned length) const; 77 #endif 78 }; 79 80 inline Text* toText(Node* node) 81 { 82 ASSERT_WITH_SECURITY_IMPLICATION(!node || node->isTextNode()); 83 return static_cast<Text*>(node); 84 } 85 86 } // namespace WebCore 87 88 #endif // Text_h 89