1/** 2 * (C) 1999-2003 Lars Knoll (knoll@kde.org) 3 * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved. 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; see the file COPYING.LIB. If not, write to 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 */ 20 21#include "config.h" 22#include "core/css/StyleSheetList.h" 23 24#include "core/HTMLNames.h" 25#include "core/dom/Document.h" 26#include "core/dom/StyleEngine.h" 27#include "core/html/HTMLStyleElement.h" 28#include "wtf/text/WTFString.h" 29 30namespace blink { 31 32using namespace HTMLNames; 33 34StyleSheetList::StyleSheetList(TreeScope* treeScope) 35 : m_treeScope(treeScope) 36{ 37} 38 39StyleSheetList::~StyleSheetList() 40{ 41} 42 43inline const WillBeHeapVector<RefPtrWillBeMember<StyleSheet> >& StyleSheetList::styleSheets() 44{ 45#if !ENABLE(OILPAN) 46 if (!m_treeScope) 47 return m_detachedStyleSheets; 48#endif 49 return document()->styleEngine()->styleSheetsForStyleSheetList(*m_treeScope); 50} 51 52#if !ENABLE(OILPAN) 53void StyleSheetList::detachFromDocument() 54{ 55 m_detachedStyleSheets = document()->styleEngine()->styleSheetsForStyleSheetList(*m_treeScope); 56 m_treeScope = nullptr; 57} 58#endif 59 60unsigned StyleSheetList::length() 61{ 62 return styleSheets().size(); 63} 64 65StyleSheet* StyleSheetList::item(unsigned index) 66{ 67 const WillBeHeapVector<RefPtrWillBeMember<StyleSheet> >& sheets = styleSheets(); 68 return index < sheets.size() ? sheets[index].get() : 0; 69} 70 71HTMLStyleElement* StyleSheetList::getNamedItem(const AtomicString& name) const 72{ 73#if !ENABLE(OILPAN) 74 if (!m_treeScope) 75 return 0; 76#endif 77 78 // IE also supports retrieving a stylesheet by name, using the name/id of the <style> tag 79 // (this is consistent with all the other collections) 80 // ### Bad implementation because returns a single element (are IDs always unique?) 81 // and doesn't look for name attribute. 82 // But unicity of stylesheet ids is good practice anyway ;) 83 // FIXME: We should figure out if we should change this or fix the spec. 84 Element* element = m_treeScope->getElementById(name); 85 return isHTMLStyleElement(element) ? toHTMLStyleElement(element) : 0; 86} 87 88CSSStyleSheet* StyleSheetList::anonymousNamedGetter(const AtomicString& name) 89{ 90 HTMLStyleElement* item = getNamedItem(name); 91 if (!item) 92 return 0; 93 return item->sheet(); 94} 95 96void StyleSheetList::trace(Visitor* visitor) 97{ 98 visitor->trace(m_treeScope); 99} 100 101} // namespace blink 102