1 /* 2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org) 3 * (C) 2000 Antti Koivisto (koivisto@kde.org) 4 * (C) 2000 Dirk Mueller (mueller@kde.org) 5 * Copyright (C) 2003, 2005, 2006, 2007, 2008, 2010 Apple Inc. All rights reserved. 6 * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com) 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Library General Public 10 * License as published by the Free Software Foundation; either 11 * version 2 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Library General Public License for more details. 17 * 18 * You should have received a copy of the GNU Library General Public License 19 * along with this library; see the file COPYING.LIB. If not, write to 20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 21 * Boston, MA 02110-1301, USA. 22 * 23 */ 24 25 #ifndef ContentData_h 26 #define ContentData_h 27 28 #include "CounterContent.h" 29 #include <wtf/OwnPtr.h> 30 #include <wtf/PassOwnPtr.h> 31 32 namespace WebCore { 33 34 class StyleImage; 35 36 struct ContentData { 37 WTF_MAKE_NONCOPYABLE(ContentData); WTF_MAKE_FAST_ALLOCATED; 38 public: ContentDataContentData39 ContentData() 40 : m_type(CONTENT_NONE) 41 { 42 } 43 ~ContentDataContentData44 ~ContentData() 45 { 46 clear(); 47 } 48 49 void clear(); 50 isCounterContentData51 bool isCounter() const { return m_type == CONTENT_COUNTER; } isImageContentData52 bool isImage() const { return m_type == CONTENT_OBJECT; } isNoneContentData53 bool isNone() const { return m_type == CONTENT_NONE; } isQuoteContentData54 bool isQuote() const { return m_type == CONTENT_QUOTE; } isTextContentData55 bool isText() const { return m_type == CONTENT_TEXT; } 56 typeContentData57 StyleContentType type() const { return m_type; } 58 59 bool dataEquivalent(const ContentData&) const; 60 imageContentData61 StyleImage* image() const 62 { 63 ASSERT(isImage()); 64 return m_content.m_image; 65 } setImageContentData66 void setImage(PassRefPtr<StyleImage> image) 67 { 68 deleteContent(); 69 m_type = CONTENT_OBJECT; 70 m_content.m_image = image.leakRef(); 71 } 72 textContentData73 StringImpl* text() const 74 { 75 ASSERT(isText()); 76 return m_content.m_text; 77 } setTextContentData78 void setText(PassRefPtr<StringImpl> text) 79 { 80 deleteContent(); 81 m_type = CONTENT_TEXT; 82 m_content.m_text = text.leakRef(); 83 } 84 counterContentData85 CounterContent* counter() const 86 { 87 ASSERT(isCounter()); 88 return m_content.m_counter; 89 } setCounterContentData90 void setCounter(PassOwnPtr<CounterContent> counter) 91 { 92 deleteContent(); 93 m_type = CONTENT_COUNTER; 94 m_content.m_counter = counter.leakPtr(); 95 } 96 quoteContentData97 QuoteType quote() const 98 { 99 ASSERT(isQuote()); 100 return m_content.m_quote; 101 } setQuoteContentData102 void setQuote(QuoteType type) 103 { 104 deleteContent(); 105 m_type = CONTENT_QUOTE; 106 m_content.m_quote = type; 107 } 108 nextContentData109 ContentData* next() const { return m_next.get(); } setNextContentData110 void setNext(PassOwnPtr<ContentData> next) { m_next = next; } 111 112 private: 113 void deleteContent(); 114 115 StyleContentType m_type; 116 union { 117 StyleImage* m_image; 118 StringImpl* m_text; 119 CounterContent* m_counter; 120 QuoteType m_quote; 121 } m_content; 122 OwnPtr<ContentData> m_next; 123 }; 124 125 } // namespace WebCore 126 127 #endif // ContentData_h 128