| /* |
| * Copyright (C) 2012 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_IMAGE_SET_VALUE_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_IMAGE_SET_VALUE_H_ |
| |
| #include "third_party/blink/renderer/core/css/css_value_list.h" |
| #include "third_party/blink/renderer/core/css/parser/css_parser_mode.h" |
| #include "third_party/blink/renderer/platform/loader/fetch/cross_origin_attribute_value.h" |
| #include "third_party/blink/renderer/platform/loader/fetch/fetch_parameters.h" |
| #include "third_party/blink/renderer/platform/weborigin/referrer.h" |
| #include "third_party/blink/renderer/platform/wtf/allocator.h" |
| #include "third_party/blink/renderer/platform/wtf/casting.h" |
| |
| namespace blink { |
| |
| class Document; |
| class StyleImage; |
| |
| class CSSImageSetValue : public CSSValueList { |
| public: |
| explicit CSSImageSetValue(CSSParserMode); |
| ~CSSImageSetValue(); |
| |
| bool IsCachePending(float device_scale_factor) const; |
| StyleImage* CachedImage(float device_scale_factor) const; |
| StyleImage* CacheImage( |
| const Document&, |
| float device_scale_factor, |
| FetchParameters::ImageRequestOptimization, |
| CrossOriginAttributeValue = kCrossOriginAttributeNotSet); |
| |
| String CustomCSSText() const; |
| |
| struct ImageWithScale { |
| DISALLOW_NEW(); |
| String image_url; |
| Referrer referrer; |
| float scale_factor; |
| }; |
| |
| CSSImageSetValue* ValueWithURLsMadeAbsolute(); |
| |
| bool HasFailedOrCanceledSubresources() const; |
| |
| void TraceAfterDispatch(blink::Visitor*); |
| |
| protected: |
| ImageWithScale BestImageForScaleFactor(float scale_factor); |
| |
| private: |
| void FillImageSet(); |
| static inline bool CompareByScaleFactor(ImageWithScale first, |
| ImageWithScale second) { |
| return first.scale_factor < second.scale_factor; |
| } |
| |
| float cached_scale_factor_; |
| Member<StyleImage> cached_image_; |
| |
| CSSParserMode parser_mode_; |
| Vector<ImageWithScale> images_in_set_; |
| }; |
| |
| template <> |
| struct DowncastTraits<CSSImageSetValue> { |
| static bool AllowFrom(const CSSValue& value) { |
| return value.IsImageSetValue(); |
| } |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_IMAGE_SET_VALUE_H_ |