Home | History | Annotate | Download | only in style 
      1 /*
      2  * Copyright (C) 2012 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "core/rendering/style/StyleFetchedImageSet.h"
     28 
     29 #include "core/css/CSSImageSetValue.h"
     30 #include "core/fetch/ImageResource.h"
     31 #include "core/rendering/RenderObject.h"
     32 
     33 namespace blink {
     34 
     35 StyleFetchedImageSet::StyleFetchedImageSet(ImageResource* image, float imageScaleFactor, CSSImageSetValue* value)
     36     : m_bestFitImage(image)
     37     , m_imageScaleFactor(imageScaleFactor)
     38     , m_imageSetValue(value)
     39 {
     40     m_isImageResourceSet = true;
     41     m_bestFitImage->addClient(this);
     42 }
     43 
     44 
     45 StyleFetchedImageSet::~StyleFetchedImageSet()
     46 {
     47     m_bestFitImage->removeClient(this);
     48 }
     49 
     50 PassRefPtrWillBeRawPtr<CSSValue> StyleFetchedImageSet::cssValue() const
     51 {
     52     return m_imageSetValue;
     53 }
     54 
     55 bool StyleFetchedImageSet::canRender(const RenderObject& renderer, float multiplier) const
     56 {
     57     return m_bestFitImage->canRender(renderer, multiplier);
     58 }
     59 
     60 bool StyleFetchedImageSet::isLoaded() const
     61 {
     62     return m_bestFitImage->isLoaded();
     63 }
     64 
     65 bool StyleFetchedImageSet::errorOccurred() const
     66 {
     67     return m_bestFitImage->errorOccurred();
     68 }
     69 
     70 LayoutSize StyleFetchedImageSet::imageSize(const RenderObject* renderer, float multiplier) const
     71 {
     72     LayoutSize scaledImageSize = m_bestFitImage->imageSizeForRenderer(renderer, multiplier);
     73     scaledImageSize.scale(1 / m_imageScaleFactor);
     74     return scaledImageSize;
     75 }
     76 
     77 bool StyleFetchedImageSet::imageHasRelativeWidth() const
     78 {
     79     return m_bestFitImage->imageHasRelativeWidth();
     80 }
     81 
     82 bool StyleFetchedImageSet::imageHasRelativeHeight() const
     83 {
     84     return m_bestFitImage->imageHasRelativeHeight();
     85 }
     86 
     87 void StyleFetchedImageSet::computeIntrinsicDimensions(const RenderObject*, Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRatio)
     88 {
     89     m_bestFitImage->computeIntrinsicDimensions(intrinsicWidth, intrinsicHeight, intrinsicRatio);
     90 }
     91 
     92 bool StyleFetchedImageSet::usesImageContainerSize() const
     93 {
     94     return m_bestFitImage->usesImageContainerSize();
     95 }
     96 
     97 void StyleFetchedImageSet::setContainerSizeForRenderer(const RenderObject* renderer, const IntSize& imageContainerSize, float imageContainerZoomFactor)
     98 {
     99     m_bestFitImage->setContainerSizeForRenderer(renderer, imageContainerSize, imageContainerZoomFactor);
    100 }
    101 
    102 void StyleFetchedImageSet::addClient(RenderObject* renderer)
    103 {
    104     m_bestFitImage->addClient(renderer);
    105 }
    106 
    107 void StyleFetchedImageSet::removeClient(RenderObject* renderer)
    108 {
    109     m_bestFitImage->removeClient(renderer);
    110 }
    111 
    112 PassRefPtr<Image> StyleFetchedImageSet::image(RenderObject* renderer, const IntSize&) const
    113 {
    114     return m_bestFitImage->imageForRenderer(renderer);
    115 }
    116 
    117 bool StyleFetchedImageSet::knownToBeOpaque(const RenderObject* renderer) const
    118 {
    119     return m_bestFitImage->currentFrameKnownToBeOpaque(renderer);
    120 }
    121 
    122 } // namespace blink
    123