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/*
* 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.
*/
#include "core/style/StyleFetchedImageSet.h"
#include "core/css/CSSImageSetValue.h"
#include "core/layout/LayoutObject.h"
#include "core/loader/resource/ImageResourceContent.h"
#include "core/svg/graphics/SVGImageForContainer.h"
namespace blink {
StyleFetchedImageSet::StyleFetchedImageSet(ImageResourceContent* image,
float imageScaleFactor,
CSSImageSetValue* value,
const KURL& url)
: m_bestFitImage(image),
m_imageScaleFactor(imageScaleFactor),
m_imageSetValue(value),
m_url(url) {
m_isImageResourceSet = true;
m_bestFitImage->addObserver(this);
}
StyleFetchedImageSet::~StyleFetchedImageSet() {}
void StyleFetchedImageSet::dispose() {
m_bestFitImage->removeObserver(this);
m_bestFitImage = nullptr;
}
WrappedImagePtr StyleFetchedImageSet::data() const {
return m_bestFitImage.get();
}
ImageResourceContent* StyleFetchedImageSet::cachedImage() const {
return m_bestFitImage.get();
}
CSSValue* StyleFetchedImageSet::cssValue() const {
return m_imageSetValue;
}
CSSValue* StyleFetchedImageSet::computedCSSValue() const {
return m_imageSetValue->valueWithURLsMadeAbsolute();
}
bool StyleFetchedImageSet::canRender() const {
return !m_bestFitImage->errorOccurred() &&
!m_bestFitImage->getImage()->isNull();
}
bool StyleFetchedImageSet::isLoaded() const {
return m_bestFitImage->isLoaded();
}
bool StyleFetchedImageSet::errorOccurred() const {
return m_bestFitImage->errorOccurred();
}
LayoutSize StyleFetchedImageSet::imageSize(
const LayoutObject&,
float multiplier,
const LayoutSize& defaultObjectSize) const {
if (m_bestFitImage->getImage() && m_bestFitImage->getImage()->isSVGImage())
return imageSizeForSVGImage(toSVGImage(m_bestFitImage->getImage()),
multiplier, defaultObjectSize);
// Image orientation should only be respected for content images,
// not decorative ones such as StyleImage (backgrounds,
// border-image, etc.)
//
// https://drafts.csswg.org/css-images-3/#the-image-orientation
LayoutSize scaledImageSize =
m_bestFitImage->imageSize(DoNotRespectImageOrientation, multiplier);
scaledImageSize.scale(1 / m_imageScaleFactor);
return scaledImageSize;
}
bool StyleFetchedImageSet::imageHasRelativeSize() const {
return m_bestFitImage->imageHasRelativeSize();
}
bool StyleFetchedImageSet::usesImageContainerSize() const {
return m_bestFitImage->usesImageContainerSize();
}
void StyleFetchedImageSet::addClient(LayoutObject* layoutObject) {
m_bestFitImage->addObserver(layoutObject);
}
void StyleFetchedImageSet::removeClient(LayoutObject* layoutObject) {
m_bestFitImage->removeObserver(layoutObject);
}
PassRefPtr<Image> StyleFetchedImageSet::image(const LayoutObject&,
const IntSize& containerSize,
float zoom) const {
if (!m_bestFitImage->getImage()->isSVGImage())
return m_bestFitImage->getImage();
return SVGImageForContainer::create(toSVGImage(m_bestFitImage->getImage()),
containerSize, zoom, m_url);
}
bool StyleFetchedImageSet::knownToBeOpaque(
const LayoutObject& layoutObject) const {
TRACE_EVENT1(
TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "PaintImage", "data",
InspectorPaintImageEvent::data(&layoutObject, *m_bestFitImage.get()));
return m_bestFitImage->getImage()->currentFrameKnownToBeOpaque(
Image::PreCacheMetadata);
}
DEFINE_TRACE(StyleFetchedImageSet) {
visitor->trace(m_bestFitImage);
visitor->trace(m_imageSetValue);
StyleImage::trace(visitor);
}
} // namespace blink
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