1 /* 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 3 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. 4 * All rights reserved. 5 * Copyright (C) 2013 Google 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 */ 23 24 #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_CSS_RESOLVER_ELEMENT_STYLE_RESOURCES_H_ 25 #define THIRD_PARTY_BLINK_RENDERER_CORE_CSS_RESOLVER_ELEMENT_STYLE_RESOURCES_H_ 26 27 #include "third_party/blink/renderer/core/css/css_property_id_templates.h" 28 #include "third_party/blink/renderer/core/css/css_property_names.h" 29 #include "third_party/blink/renderer/platform/graphics/color.h" 30 #include "third_party/blink/renderer/platform/heap/handle.h" 31 #include "third_party/blink/renderer/platform/loader/fetch/cross_origin_attribute_value.h" 32 #include "third_party/blink/renderer/platform/loader/fetch/fetch_parameters.h" 33 #include "third_party/blink/renderer/platform/wtf/hash_map.h" 34 35 namespace blink { 36 37 class CSSImageGeneratorValue; 38 class CSSImageSetValue; 39 class CSSImageValue; 40 class CSSValue; 41 class ComputedStyle; 42 class Element; 43 class PseudoElement; 44 class SVGResource; 45 class StyleImage; 46 class StylePendingImage; 47 class TreeScope; 48 49 namespace cssvalue { 50 51 class CSSURIValue; 52 53 } 54 55 // Holds information about resources, requested by stylesheets. 56 // Lifetime: per-element style resolve. 57 class ElementStyleResources { 58 STACK_ALLOCATED(); 59 60 public: 61 ElementStyleResources(Element&, 62 float device_scale_factor, 63 PseudoElement* pseudo_element); 64 ElementStyleResources(const ElementStyleResources&) = delete; 65 ElementStyleResources& operator=(const ElementStyleResources&) = delete; 66 67 StyleImage* GetStyleImage(CSSPropertyID, const CSSValue&); 68 StyleImage* CachedOrPendingFromValue(CSSPropertyID, const CSSImageValue&); 69 StyleImage* SetOrPendingFromValue(CSSPropertyID, const CSSImageSetValue&); 70 71 enum AllowExternal { kDontAllowExternalResource, kAllowExternalResource }; 72 SVGResource* GetSVGResourceFromValue( 73 TreeScope&, 74 const cssvalue::CSSURIValue&, 75 AllowExternal = kDontAllowExternalResource) const; 76 77 void LoadPendingResources(ComputedStyle&); 78 79 private: 80 StyleImage* GeneratedOrPendingFromValue(CSSPropertyID, 81 const CSSImageGeneratorValue&); 82 83 void LoadPendingSVGResources(ComputedStyle&); 84 void LoadPendingImages(ComputedStyle&); 85 86 StyleImage* LoadPendingImage( 87 ComputedStyle&, 88 StylePendingImage*, 89 FetchParameters::ImageRequestBehavior, 90 CrossOriginAttributeValue = kCrossOriginAttributeNotSet); 91 92 Element* element_; 93 HashSet<CSSPropertyID> pending_image_properties_; 94 float device_scale_factor_; 95 PseudoElement* pseudo_element_; 96 }; 97 98 } // namespace blink 99 100 #endif // THIRD_PARTY_BLINK_RENDERER_CORE_CSS_RESOLVER_ELEMENT_STYLE_RESOURCES_H_ 101