1 /* 2 Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de) 3 Copyright (C) 2001 Dirk Mueller <mueller@kde.org> 4 Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com) 5 Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. 6 7 This library is free software; you can redistribute it and/or 8 modify it under the terms of the GNU Library General Public 9 License as published by the Free Software Foundation; either 10 version 2 of the License, or (at your option) any later version. 11 12 This library is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 Library General Public License for more details. 16 17 You should have received a copy of the GNU Library General Public License 18 along with this library; see the file COPYING.LIB. If not, write to 19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 20 Boston, MA 02110-1301, USA. 21 22 This class provides all functionality needed for loading images, style sheets and html 23 pages from the web. It has a memory cache for these objects. 24 */ 25 26 #ifndef CSSStyleSheetResource_h 27 #define CSSStyleSheetResource_h 28 29 #include "core/fetch/ResourcePtr.h" 30 #include "core/fetch/StyleSheetResource.h" 31 #include "platform/heap/Handle.h" 32 33 namespace WebCore { 34 35 class CSSParserContext; 36 class ResourceClient; 37 class StyleSheetContents; 38 class TextResourceDecoder; 39 40 class CSSStyleSheetResource FINAL : public StyleSheetResource { 41 public: 42 CSSStyleSheetResource(const ResourceRequest&, const String& charset); 43 virtual ~CSSStyleSheetResource(); 44 45 const String sheetText(bool enforceMIMEType = true, bool* hasValidMIMEType = 0) const; 46 47 virtual void didAddClient(ResourceClient*) OVERRIDE; 48 49 PassRefPtrWillBeRawPtr<StyleSheetContents> restoreParsedStyleSheet(const CSSParserContext&); 50 void saveParsedStyleSheet(PassRefPtrWillBeRawPtr<StyleSheetContents>); 51 52 protected: 53 virtual bool isSafeToUnlock() const OVERRIDE; 54 virtual void destroyDecodedDataIfPossible() OVERRIDE; 55 56 private: 57 bool canUseSheet(bool enforceMIMEType, bool* hasValidMIMEType) const; 58 virtual void checkNotify() OVERRIDE; 59 60 String m_decodedSheetText; 61 62 RefPtrWillBePersistent<StyleSheetContents> m_parsedStyleSheetCache; 63 }; 64 65 DEFINE_RESOURCE_TYPE_CASTS(CSSStyleSheet); 66 67 } 68 69 #endif 70