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/*
* Copyright (C) 2022 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 THE COPYRIGHT HOLDER "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 THE COPYRIGHT HOLDER 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 "config.h"
#include "StylePaintImage.h"
#include "CSSPaintImageValue.h"
#include "CSSVariableData.h"
#include "CustomPaintImage.h"
#include "PaintWorkletGlobalScope.h"
#include "RenderElement.h"
#include <wtf/PointerComparison.h>
namespace WebCore {
StylePaintImage::StylePaintImage(String&& name, Ref<CSSVariableData>&& arguments)
: StyleGeneratedImage { Type::PaintImage, StylePaintImage::isFixedSize }
, m_name { WTFMove(name) }
, m_arguments { WTFMove(arguments) }
{
}
StylePaintImage::~StylePaintImage() = default;
bool StylePaintImage::operator==(const StyleImage& other) const
{
// FIXME: Should probably also compare arguments?
auto* otherPaintImage = dynamicDowncast<StylePaintImage>(other);
return otherPaintImage && otherPaintImage->m_name == m_name;
}
Ref<CSSValue> StylePaintImage::computedStyleValue(const RenderStyle&) const
{
return CSSPaintImageValue::create(m_name, m_arguments);
}
bool StylePaintImage::isPending() const
{
return false;
}
void StylePaintImage::load(CachedResourceLoader&, const ResourceLoaderOptions&)
{
}
RefPtr<Image> StylePaintImage::image(const RenderElement* renderer, const FloatSize& size, bool) const
{
if (!renderer)
return &Image::nullImage();
if (size.isEmpty())
return nullptr;
auto* selectedGlobalScope = renderer->document().paintWorkletGlobalScopeForName(m_name);
if (!selectedGlobalScope)
return nullptr;
Locker locker { selectedGlobalScope->paintDefinitionLock() };
auto* registration = selectedGlobalScope->paintDefinitionMap().get(m_name);
if (!registration)
return nullptr;
// FIXME: Check if argument list matches syntax.
Vector<String> arguments;
CSSParserTokenRange localRange(m_arguments->tokenRange());
while (!localRange.atEnd()) {
StringBuilder builder;
while (!localRange.atEnd() && localRange.peek() != CommaToken) {
if (localRange.peek() == CommentToken)
localRange.consume();
else if (localRange.peek().getBlockType() == CSSParserToken::BlockStart) {
localRange.peek().serialize(builder);
builder.append(localRange.consumeBlock().serialize(), ')');
} else
localRange.consume().serialize(builder);
}
if (!localRange.atEnd())
localRange.consume(); // comma token
arguments.append(builder.toString());
}
return CustomPaintImage::create(*registration, size, *renderer, arguments);
}
bool StylePaintImage::knownToBeOpaque(const RenderElement&) const
{
return false;
}
FloatSize StylePaintImage::fixedSize(const RenderElement&) const
{
return { };
}
} // namespace WebCore
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