1 /* 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 3 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved. 4 * Copyright (C) 2013 Google 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 ElementStyleResources_h 24 #define ElementStyleResources_h 25 26 #include "core/CSSPropertyNames.h" 27 #include "platform/graphics/Color.h" 28 #include "platform/heap/Handle.h" 29 #include "wtf/HashMap.h" 30 #include "wtf/Noncopyable.h" 31 32 namespace blink { 33 34 class CSSCursorImageValue; 35 class CSSImageValue; 36 class CSSImageGeneratorValue; 37 class CSSImageSetValue; 38 class CSSSVGDocumentValue; 39 class CSSValue; 40 class FilterOperation; 41 class StyleImage; 42 class TextLinkColors; 43 44 typedef WillBeHeapHashMap<FilterOperation*, RefPtrWillBeMember<CSSSVGDocumentValue> > PendingSVGDocumentMap; 45 typedef WillBeHeapHashMap<CSSPropertyID, RefPtrWillBeMember<CSSValue> > PendingImagePropertyMap; 46 47 // Holds information about resources, requested by stylesheets. 48 // Lifetime: per-element style resolve. 49 class ElementStyleResources { 50 STACK_ALLOCATED(); 51 WTF_MAKE_NONCOPYABLE(ElementStyleResources); 52 public: 53 ElementStyleResources(); 54 55 PassRefPtr<StyleImage> styleImage(Document&, const TextLinkColors&, Color currentColor, CSSPropertyID, CSSValue*); 56 57 PassRefPtr<StyleImage> generatedOrPendingFromValue(CSSPropertyID, CSSImageGeneratorValue*); 58 PassRefPtr<StyleImage> cachedOrPendingFromValue(Document&, CSSPropertyID, CSSImageValue*); 59 PassRefPtr<StyleImage> setOrPendingFromValue(CSSPropertyID, CSSImageSetValue*); 60 PassRefPtr<StyleImage> cursorOrPendingFromValue(CSSPropertyID, CSSCursorImageValue*); 61 pendingImageProperties()62 const PendingImagePropertyMap& pendingImageProperties() const { return m_pendingImageProperties; } pendingSVGDocuments()63 const PendingSVGDocumentMap& pendingSVGDocuments() const { return m_pendingSVGDocuments; } 64 65 void clearPendingImageProperties(); 66 void clearPendingSVGDocuments(); 67 deviceScaleFactor()68 float deviceScaleFactor() const { return m_deviceScaleFactor; } setDeviceScaleFactor(float deviceScaleFactor)69 void setDeviceScaleFactor(float deviceScaleFactor) { m_deviceScaleFactor = deviceScaleFactor; } 70 71 void addPendingSVGDocument(FilterOperation*, CSSSVGDocumentValue*); 72 73 private: 74 PendingImagePropertyMap m_pendingImageProperties; 75 PendingSVGDocumentMap m_pendingSVGDocuments; 76 float m_deviceScaleFactor; 77 }; 78 79 } // namespace blink 80 81 #endif // ElementStyleResources_h 82