15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2012 Apple Inc. All rights reserved. 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Redistribution and use in source and binary forms, with or without 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modification, are permitted provided that the following conditions 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * are met: 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 1. Redistributions of source code must retain the above copyright 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 2. Redistributions in binary form must reproduce the above copyright 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer in the 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * documentation and/or other materials provided with the distribution. 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THE POSSIBILITY OF SUCH DAMAGE. 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 26e6d4491e48613634a83c1957c72759da80987961Ben Murdoch#ifndef StyleFetchedImageSet_h 27e6d4491e48613634a83c1957c72759da80987961Ben Murdoch#define StyleFetchedImageSet_h 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 29e6d4491e48613634a83c1957c72759da80987961Ben Murdoch#include "core/loader/cache/ImageResourceClient.h" 30fff8884795cb540f87cf6e6d67b629519b00eb8bBen Murdoch#include "core/loader/cache/ResourcePtr.h" 3153e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/platform/graphics/LayoutSize.h" 3253e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/rendering/style/StyleImage.h" 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)namespace WebCore { 355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 36e6d4491e48613634a83c1957c72759da80987961Ben Murdochclass ImageResource; 375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)class CSSImageSetValue; 385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)// This class keeps one cached image and has access to a set of alternatives. 405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 41e6d4491e48613634a83c1957c72759da80987961Ben Murdochclass StyleFetchedImageSet : public StyleImage, private ImageResourceClient { 425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) WTF_MAKE_FAST_ALLOCATED; 435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)public: 44e6d4491e48613634a83c1957c72759da80987961Ben Murdoch static PassRefPtr<StyleFetchedImageSet> create(ImageResource* image, float imageScaleFactor, CSSImageSetValue* value) 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) { 46e6d4491e48613634a83c1957c72759da80987961Ben Murdoch return adoptRef(new StyleFetchedImageSet(image, imageScaleFactor, value)); 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 48e6d4491e48613634a83c1957c72759da80987961Ben Murdoch virtual ~StyleFetchedImageSet(); 495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual PassRefPtr<CSSValue> cssValue() const; 515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // FIXME: This is used by StyleImage for equals comparison, but this implementation 535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // only looks at the image from the set that we have loaded. I'm not sure if that is 545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // meaningful enough or not. 555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual WrappedImagePtr data() const { return m_bestFitImage.get(); } 565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 57926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) void clearImageSetValue() { m_imageSetValue = 0; } 585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual bool canRender(const RenderObject*, float multiplier) const; 605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual bool isLoaded() const; 615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual bool errorOccurred() const; 625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual LayoutSize imageSize(const RenderObject*, float multiplier) const; 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual bool imageHasRelativeWidth() const; 645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual bool imageHasRelativeHeight() const; 655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual void computeIntrinsicDimensions(const RenderObject*, Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRatio); 665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual bool usesImageContainerSize() const; 675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual void setContainerSizeForRenderer(const RenderObject*, const IntSize&, float); 685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual void addClient(RenderObject*); 695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual void removeClient(RenderObject*); 705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual PassRefPtr<Image> image(RenderObject*, const IntSize&) const; 715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual float imageScaleFactor() const { return m_imageScaleFactor; } 72926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) virtual bool knownToBeOpaque(const RenderObject*) const OVERRIDE; 73e6d4491e48613634a83c1957c72759da80987961Ben Murdoch virtual ImageResource* cachedImage() const OVERRIDE { return m_bestFitImage.get(); } 7453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles) 755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)private: 76e6d4491e48613634a83c1957c72759da80987961Ben Murdoch StyleFetchedImageSet(ImageResource*, float imageScaleFactor, CSSImageSetValue*); 775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 78e6d4491e48613634a83c1957c72759da80987961Ben Murdoch ResourcePtr<ImageResource> m_bestFitImage; 795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) float m_imageScaleFactor; 805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) CSSImageSetValue* m_imageSetValue; // Not retained; it owns us. 815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)}; 825c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} // namespace WebCore 845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 85e6d4491e48613634a83c1957c72759da80987961Ben Murdoch#endif // StyleFetchedImageSet_h 86