1 /* 2 * (C) 1999-2003 Lars Knoll (knoll (at) kde.org) 3 * (C) 2002-2003 Dirk Mueller (mueller (at) kde.org) 4 * Copyright (C) 2002, 2006, 2008, 2012 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 #ifndef StyleRuleImport_h 23 #define StyleRuleImport_h 24 25 #include "core/css/StyleRule.h" 26 #include "core/fetch/ResourcePtr.h" 27 #include "core/fetch/StyleSheetResourceClient.h" 28 #include "platform/heap/Handle.h" 29 30 namespace WebCore { 31 32 class CSSStyleSheetResource; 33 class MediaQuerySet; 34 class StyleSheetContents; 35 36 class StyleRuleImport : public StyleRuleBase { 37 WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED; 38 public: 39 static PassRefPtrWillBeRawPtr<StyleRuleImport> create(const String& href, PassRefPtrWillBeRawPtr<MediaQuerySet>); 40 41 ~StyleRuleImport(); 42 43 StyleSheetContents* parentStyleSheet() const { return m_parentStyleSheet; } 44 void setParentStyleSheet(StyleSheetContents* sheet) { ASSERT(sheet); m_parentStyleSheet = sheet; } 45 void clearParentStyleSheet() { m_parentStyleSheet = nullptr; } 46 47 String href() const { return m_strHref; } 48 StyleSheetContents* styleSheet() const { return m_styleSheet.get(); } 49 50 bool isLoading() const; 51 MediaQuerySet* mediaQueries() { return m_mediaQueries.get(); } 52 53 void requestStyleSheet(); 54 55 void traceAfterDispatch(Visitor*); 56 57 private: 58 // FIXME: inherit from StyleSheetResourceClient directly to eliminate raw back pointer, as there are no space savings in this. 59 // NOTE: We put the StyleSheetResourceClient in a member instead of inheriting from it 60 // to avoid adding a vptr to StyleRuleImport. 61 class ImportedStyleSheetClient FINAL : public StyleSheetResourceClient { 62 public: 63 ImportedStyleSheetClient(StyleRuleImport* ownerRule) : m_ownerRule(ownerRule) { } 64 virtual ~ImportedStyleSheetClient() { } 65 virtual void setCSSStyleSheet(const String& href, const KURL& baseURL, const String& charset, const CSSStyleSheetResource* sheet) OVERRIDE 66 { 67 m_ownerRule->setCSSStyleSheet(href, baseURL, charset, sheet); 68 } 69 private: 70 StyleRuleImport* m_ownerRule; 71 }; 72 73 void setCSSStyleSheet(const String& href, const KURL& baseURL, const String& charset, const CSSStyleSheetResource*); 74 friend class ImportedStyleSheetClient; 75 76 StyleRuleImport(const String& href, PassRefPtrWillBeRawPtr<MediaQuerySet>); 77 78 RawPtrWillBeMember<StyleSheetContents> m_parentStyleSheet; 79 80 ImportedStyleSheetClient m_styleSheetClient; 81 String m_strHref; 82 RefPtrWillBeMember<MediaQuerySet> m_mediaQueries; 83 RefPtrWillBeMember<StyleSheetContents> m_styleSheet; 84 ResourcePtr<CSSStyleSheetResource> m_resource; 85 bool m_loading; 86 }; 87 88 DEFINE_STYLE_RULE_TYPE_CASTS(Import); 89 90 } // namespace WebCore 91 92 #endif 93
