366 lines
13 KiB
C++
366 lines
13 KiB
C++
/*
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* Copyright (C) 2008, 2011, 2012, 2013 Apple Inc. All rights reserved.
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* Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "CSSImageGeneratorValue.h"
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#include "CSSCanvasValue.h"
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#include "CSSCrossfadeValue.h"
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#include "CSSFilterImageValue.h"
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#include "CSSGradientValue.h"
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#include "CSSImageValue.h"
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#include "CSSNamedImageValue.h"
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#include "CSSPaintImageValue.h"
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#include "GeneratedImage.h"
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#include "HTMLCanvasElement.h"
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#include "InspectorInstrumentation.h"
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#include "RenderElement.h"
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namespace WebCore {
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static const Seconds timeToKeepCachedGeneratedImages { 3_s };
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class CSSImageGeneratorValue::CachedGeneratedImage {
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WTF_MAKE_FAST_ALLOCATED;
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public:
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CachedGeneratedImage(CSSImageGeneratorValue&, FloatSize, GeneratedImage&);
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GeneratedImage& image() const { return m_image; }
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void puntEvictionTimer() { m_evictionTimer.restart(); }
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private:
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void evictionTimerFired();
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CSSImageGeneratorValue& m_owner;
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const FloatSize m_size;
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const Ref<GeneratedImage> m_image;
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DeferrableOneShotTimer m_evictionTimer;
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};
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CSSImageGeneratorValue::CSSImageGeneratorValue(ClassType classType)
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: CSSValue(classType)
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{
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}
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CSSImageGeneratorValue::~CSSImageGeneratorValue() = default;
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void CSSImageGeneratorValue::addClient(RenderElement& renderer)
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{
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if (m_clients.isEmpty())
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ref();
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m_clients.add(&renderer);
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if (is<CSSCanvasValue>(this)) {
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if (HTMLCanvasElement* canvasElement = downcast<CSSCanvasValue>(this)->element())
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InspectorInstrumentation::didChangeCSSCanvasClientNodes(*canvasElement);
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}
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}
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void CSSImageGeneratorValue::removeClient(RenderElement& renderer)
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{
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ASSERT(m_clients.contains(&renderer));
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if (!m_clients.remove(&renderer))
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return;
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if (is<CSSCanvasValue>(this)) {
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if (HTMLCanvasElement* canvasElement = downcast<CSSCanvasValue>(this)->element())
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InspectorInstrumentation::didChangeCSSCanvasClientNodes(*canvasElement);
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}
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if (m_clients.isEmpty())
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deref();
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}
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GeneratedImage* CSSImageGeneratorValue::cachedImageForSize(FloatSize size)
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{
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if (size.isEmpty())
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return nullptr;
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auto* cachedGeneratedImage = m_images.get(size);
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if (!cachedGeneratedImage)
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return nullptr;
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cachedGeneratedImage->puntEvictionTimer();
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return &cachedGeneratedImage->image();
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}
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void CSSImageGeneratorValue::saveCachedImageForSize(FloatSize size, GeneratedImage& image)
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{
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ASSERT(!m_images.contains(size));
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m_images.add(size, makeUnique<CachedGeneratedImage>(*this, size, image));
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}
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void CSSImageGeneratorValue::evictCachedGeneratedImage(FloatSize size)
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{
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ASSERT(m_images.contains(size));
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m_images.remove(size);
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}
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inline CSSImageGeneratorValue::CachedGeneratedImage::CachedGeneratedImage(CSSImageGeneratorValue& owner, FloatSize size, GeneratedImage& image)
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: m_owner(owner)
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, m_size(size)
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, m_image(image)
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, m_evictionTimer(*this, &CSSImageGeneratorValue::CachedGeneratedImage::evictionTimerFired, timeToKeepCachedGeneratedImages)
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{
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m_evictionTimer.restart();
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}
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void CSSImageGeneratorValue::CachedGeneratedImage::evictionTimerFired()
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{
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// NOTE: This is essentially a "delete this", the object is no longer valid after this line.
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m_owner.evictCachedGeneratedImage(m_size);
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}
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RefPtr<Image> CSSImageGeneratorValue::image(RenderElement& renderer, const FloatSize& size)
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{
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switch (classType()) {
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case CanvasClass:
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return downcast<CSSCanvasValue>(*this).image(renderer, size);
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case NamedImageClass:
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return downcast<CSSNamedImageValue>(*this).image(renderer, size);
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case CrossfadeClass:
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return downcast<CSSCrossfadeValue>(*this).image(renderer, size);
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case FilterImageClass:
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return downcast<CSSFilterImageValue>(*this).image(renderer, size);
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case LinearGradientClass:
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return downcast<CSSLinearGradientValue>(*this).image(renderer, size);
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case RadialGradientClass:
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return downcast<CSSRadialGradientValue>(*this).image(renderer, size);
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case ConicGradientClass:
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return downcast<CSSConicGradientValue>(*this).image(renderer, size);
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#if ENABLE(CSS_PAINTING_API)
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case PaintImageClass:
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return downcast<CSSPaintImageValue>(*this).image(renderer, size);
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#endif
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default:
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ASSERT_NOT_REACHED();
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}
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return nullptr;
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}
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bool CSSImageGeneratorValue::isFixedSize() const
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{
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switch (classType()) {
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case CanvasClass:
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return downcast<CSSCanvasValue>(*this).isFixedSize();
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case NamedImageClass:
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return downcast<CSSNamedImageValue>(*this).isFixedSize();
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case CrossfadeClass:
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return downcast<CSSCrossfadeValue>(*this).isFixedSize();
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case FilterImageClass:
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return downcast<CSSFilterImageValue>(*this).isFixedSize();
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case LinearGradientClass:
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return downcast<CSSLinearGradientValue>(*this).isFixedSize();
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case RadialGradientClass:
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return downcast<CSSRadialGradientValue>(*this).isFixedSize();
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case ConicGradientClass:
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return downcast<CSSConicGradientValue>(*this).isFixedSize();
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#if ENABLE(CSS_PAINTING_API)
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case PaintImageClass:
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return downcast<CSSPaintImageValue>(*this).isFixedSize();
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#endif
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default:
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ASSERT_NOT_REACHED();
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}
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return false;
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}
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FloatSize CSSImageGeneratorValue::fixedSize(const RenderElement& renderer)
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{
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switch (classType()) {
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case CanvasClass:
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return downcast<CSSCanvasValue>(*this).fixedSize(renderer);
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case CrossfadeClass:
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return downcast<CSSCrossfadeValue>(*this).fixedSize(renderer);
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case FilterImageClass:
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return downcast<CSSFilterImageValue>(*this).fixedSize(renderer);
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case LinearGradientClass:
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return downcast<CSSLinearGradientValue>(*this).fixedSize(renderer);
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case RadialGradientClass:
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return downcast<CSSRadialGradientValue>(*this).fixedSize(renderer);
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case ConicGradientClass:
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return downcast<CSSConicGradientValue>(*this).fixedSize(renderer);
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#if ENABLE(CSS_PAINTING_API)
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case PaintImageClass:
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return downcast<CSSPaintImageValue>(*this).fixedSize(renderer);
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#endif
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default:
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ASSERT_NOT_REACHED();
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}
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return FloatSize();
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}
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bool CSSImageGeneratorValue::isPending() const
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{
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switch (classType()) {
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case CrossfadeClass:
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return downcast<CSSCrossfadeValue>(*this).isPending();
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case CanvasClass:
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return downcast<CSSCanvasValue>(*this).isPending();
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case NamedImageClass:
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return downcast<CSSNamedImageValue>(*this).isPending();
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case FilterImageClass:
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return downcast<CSSFilterImageValue>(*this).isPending();
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case LinearGradientClass:
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return downcast<CSSLinearGradientValue>(*this).isPending();
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case RadialGradientClass:
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return downcast<CSSRadialGradientValue>(*this).isPending();
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case ConicGradientClass:
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return downcast<CSSConicGradientValue>(*this).isPending();
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#if ENABLE(CSS_PAINTING_API)
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case PaintImageClass:
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return downcast<CSSPaintImageValue>(*this).isPending();
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#endif
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default:
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ASSERT_NOT_REACHED();
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}
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return false;
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}
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bool CSSImageGeneratorValue::knownToBeOpaque(const RenderElement& renderer) const
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{
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switch (classType()) {
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case CrossfadeClass:
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return downcast<CSSCrossfadeValue>(*this).knownToBeOpaque(renderer);
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case CanvasClass:
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return false;
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case NamedImageClass:
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return false;
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case FilterImageClass:
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return downcast<CSSFilterImageValue>(*this).knownToBeOpaque(renderer);
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case LinearGradientClass:
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return downcast<CSSLinearGradientValue>(*this).knownToBeOpaque(renderer);
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case RadialGradientClass:
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return downcast<CSSRadialGradientValue>(*this).knownToBeOpaque(renderer);
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case ConicGradientClass:
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return downcast<CSSConicGradientValue>(*this).knownToBeOpaque(renderer);
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#if ENABLE(CSS_PAINTING_API)
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case PaintImageClass:
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return downcast<CSSPaintImageValue>(*this).knownToBeOpaque(renderer);
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#endif
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default:
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ASSERT_NOT_REACHED();
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}
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return false;
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}
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void CSSImageGeneratorValue::loadSubimages(CachedResourceLoader& cachedResourceLoader, const ResourceLoaderOptions& options)
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{
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switch (classType()) {
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case CrossfadeClass:
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downcast<CSSCrossfadeValue>(*this).loadSubimages(cachedResourceLoader, options);
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break;
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case CanvasClass:
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downcast<CSSCanvasValue>(*this).loadSubimages(cachedResourceLoader, options);
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break;
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case FilterImageClass:
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downcast<CSSFilterImageValue>(*this).loadSubimages(cachedResourceLoader, options);
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break;
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case LinearGradientClass:
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downcast<CSSLinearGradientValue>(*this).loadSubimages(cachedResourceLoader, options);
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break;
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case RadialGradientClass:
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downcast<CSSRadialGradientValue>(*this).loadSubimages(cachedResourceLoader, options);
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break;
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case ConicGradientClass:
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downcast<CSSConicGradientValue>(*this).loadSubimages(cachedResourceLoader, options);
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break;
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#if ENABLE(CSS_PAINTING_API)
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case PaintImageClass:
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downcast<CSSPaintImageValue>(*this).loadSubimages(cachedResourceLoader, options);
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break;
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#endif
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default:
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ASSERT_NOT_REACHED();
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}
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}
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bool CSSImageGeneratorValue::operator==(const CSSImageGeneratorValue& other) const
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{
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if (classType() != other.classType())
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return false;
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switch (classType()) {
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case CrossfadeClass:
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return downcast<CSSCrossfadeValue>(*this).equals(downcast<CSSCrossfadeValue>(other));
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case CanvasClass:
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return downcast<CSSCanvasValue>(*this).equals(downcast<CSSCanvasValue>(other));
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case FilterImageClass:
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return downcast<CSSFilterImageValue>(*this).equals(downcast<CSSFilterImageValue>(other));
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case LinearGradientClass:
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return downcast<CSSLinearGradientValue>(*this).equals(downcast<CSSLinearGradientValue>(other));
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case RadialGradientClass:
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return downcast<CSSRadialGradientValue>(*this).equals(downcast<CSSRadialGradientValue>(other));
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case ConicGradientClass:
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return downcast<CSSConicGradientValue>(*this).equals(downcast<CSSConicGradientValue>(other));
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#if ENABLE(CSS_PAINTING_API)
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case PaintImageClass:
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return downcast<CSSPaintImageValue>(*this).equals(downcast<CSSPaintImageValue>(other));
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#endif
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default:
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ASSERT_NOT_REACHED();
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}
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return false;
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}
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bool CSSImageGeneratorValue::subimageIsPending(const CSSValue& value)
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{
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if (is<CSSImageValue>(value))
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return downcast<CSSImageValue>(value).isPending();
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if (is<CSSImageGeneratorValue>(value))
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return downcast<CSSImageGeneratorValue>(value).isPending();
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if (is<CSSPrimitiveValue>(value) && downcast<CSSPrimitiveValue>(value).valueID() == CSSValueNone)
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return false;
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ASSERT_NOT_REACHED();
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return false;
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}
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CachedImage* CSSImageGeneratorValue::cachedImageForCSSValue(CSSValue& value, CachedResourceLoader& cachedResourceLoader, const ResourceLoaderOptions& options)
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{
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if (is<CSSImageValue>(value)) {
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auto& imageValue = downcast<CSSImageValue>(value);
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return imageValue.loadImage(cachedResourceLoader, options);
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}
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if (is<CSSImageGeneratorValue>(value)) {
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downcast<CSSImageGeneratorValue>(value).loadSubimages(cachedResourceLoader, options);
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// FIXME: Handle CSSImageGeneratorValue (and thus cross-fades with gradients and canvas).
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return nullptr;
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}
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if (is<CSSPrimitiveValue>(value) && downcast<CSSPrimitiveValue>(value).valueID() == CSSValueNone)
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return nullptr;
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ASSERT_NOT_REACHED();
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return nullptr;
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}
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} // namespace WebCore
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