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/*
Copyright (C) 2007 Eric Seidel <eric@webkit.org>
Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
Copyright (C) 2019 Apple Inc. All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "CSSComputedStyleDeclaration.h"
#include "CSSPrimitiveValueMappings.h"
#include "CSSPropertyNames.h"
#include "CSSValueList.h"
#include "Document.h"
#include "Element.h"
#include "RenderStyle.h"
namespace WebCore {
static RefPtr<CSSPrimitiveValue> glyphOrientationToCSSPrimitiveValue(GlyphOrientation orientation)
{
switch (orientation) {
case GlyphOrientation::Degrees0:
return CSSPrimitiveValue::create(0.0f, CSSUnitType::CSS_DEG);
case GlyphOrientation::Degrees90:
return CSSPrimitiveValue::create(90.0f, CSSUnitType::CSS_DEG);
case GlyphOrientation::Degrees180:
return CSSPrimitiveValue::create(180.0f, CSSUnitType::CSS_DEG);
case GlyphOrientation::Degrees270:
return CSSPrimitiveValue::create(270.0f, CSSUnitType::CSS_DEG);
case GlyphOrientation::Auto:
return nullptr;
}
RELEASE_ASSERT_NOT_REACHED();
}
static Ref<CSSValue> strokeDashArrayToCSSValueList(const Vector<SVGLengthValue>& dashes)
{
if (dashes.isEmpty())
return CSSPrimitiveValue::createIdentifier(CSSValueNone);
auto list = CSSValueList::createCommaSeparated();
for (auto& length : dashes)
list->append(SVGLengthValue::toCSSPrimitiveValue(length));
return list;
}
Ref<CSSValue> ComputedStyleExtractor::adjustSVGPaintForCurrentColor(SVGPaintType paintType, const String& url, const Color& color, const Color& currentColor) const
{
if (paintType >= SVGPaintType::URINone) {
auto values = CSSValueList::createSpaceSeparated();
values->append(CSSPrimitiveValue::create(url, CSSUnitType::CSS_URI));
if (paintType == SVGPaintType::URINone)
values->append(CSSPrimitiveValue::createIdentifier(CSSValueNone));
else if (paintType == SVGPaintType::URICurrentColor)
values->append(CSSPrimitiveValue::create(currentColor));
else if (paintType == SVGPaintType::URIRGBColor)
values->append(CSSPrimitiveValue::create(color));
return values;
}
if (paintType == SVGPaintType::None)
return CSSPrimitiveValue::createIdentifier(CSSValueNone);
if (paintType == SVGPaintType::CurrentColor)
return CSSPrimitiveValue::create(currentColor);
return CSSPrimitiveValue::create(color);
}
RefPtr<CSSValue> ComputedStyleExtractor::svgPropertyValue(CSSPropertyID propertyID)
{
if (!m_element)
return nullptr;
auto* style = m_element->computedStyle();
if (!style)
return nullptr;
const SVGRenderStyle& svgStyle = style->svgStyle();
switch (propertyID) {
case CSSPropertyClipRule:
return CSSPrimitiveValue::create(svgStyle.clipRule());
case CSSPropertyFloodOpacity:
return CSSPrimitiveValue::create(svgStyle.floodOpacity(), CSSUnitType::CSS_NUMBER);
case CSSPropertyStopOpacity:
return CSSPrimitiveValue::create(svgStyle.stopOpacity(), CSSUnitType::CSS_NUMBER);
case CSSPropertyColorInterpolation:
return CSSPrimitiveValue::create(svgStyle.colorInterpolation());
case CSSPropertyColorInterpolationFilters:
return CSSPrimitiveValue::create(svgStyle.colorInterpolationFilters());
case CSSPropertyFillOpacity:
return CSSPrimitiveValue::create(svgStyle.fillOpacity(), CSSUnitType::CSS_NUMBER);
case CSSPropertyFillRule:
return CSSPrimitiveValue::create(svgStyle.fillRule());
case CSSPropertyShapeRendering:
return CSSPrimitiveValue::create(svgStyle.shapeRendering());
case CSSPropertyStrokeOpacity:
return CSSPrimitiveValue::create(svgStyle.strokeOpacity(), CSSUnitType::CSS_NUMBER);
case CSSPropertyAlignmentBaseline:
return CSSPrimitiveValue::create(svgStyle.alignmentBaseline());
case CSSPropertyDominantBaseline:
return CSSPrimitiveValue::create(svgStyle.dominantBaseline());
case CSSPropertyTextAnchor:
return CSSPrimitiveValue::create(svgStyle.textAnchor());
case CSSPropertyFloodColor:
return currentColorOrValidColor(style, svgStyle.floodColor());
case CSSPropertyLightingColor:
return currentColorOrValidColor(style, svgStyle.lightingColor());
case CSSPropertyStopColor:
return currentColorOrValidColor(style, svgStyle.stopColor());
case CSSPropertyFill:
return adjustSVGPaintForCurrentColor(svgStyle.fillPaintType(), svgStyle.fillPaintUri(), svgStyle.fillPaintColor(), style->color());
case CSSPropertyKerning:
return SVGLengthValue::toCSSPrimitiveValue(svgStyle.kerning());
case CSSPropertyMarkerEnd:
if (!svgStyle.markerEndResource().isEmpty())
return CSSPrimitiveValue::create(makeString('#', svgStyle.markerEndResource()), CSSUnitType::CSS_URI);
return CSSPrimitiveValue::createIdentifier(CSSValueNone);
case CSSPropertyMarkerMid:
if (!svgStyle.markerMidResource().isEmpty())
return CSSPrimitiveValue::create(makeString('#', svgStyle.markerMidResource()), CSSUnitType::CSS_URI);
return CSSPrimitiveValue::createIdentifier(CSSValueNone);
case CSSPropertyMarkerStart:
if (!svgStyle.markerStartResource().isEmpty())
return CSSPrimitiveValue::create(makeString('#', svgStyle.markerStartResource()), CSSUnitType::CSS_URI);
return CSSPrimitiveValue::createIdentifier(CSSValueNone);
case CSSPropertyStroke:
return adjustSVGPaintForCurrentColor(svgStyle.strokePaintType(), svgStyle.strokePaintUri(), svgStyle.strokePaintColor(), style->color());
case CSSPropertyStrokeDasharray:
return strokeDashArrayToCSSValueList(svgStyle.strokeDashArray());
case CSSPropertyBaselineShift: {
switch (svgStyle.baselineShift()) {
case BaselineShift::Baseline:
return CSSPrimitiveValue::createIdentifier(CSSValueBaseline);
case BaselineShift::Super:
return CSSPrimitiveValue::createIdentifier(CSSValueSuper);
case BaselineShift::Sub:
return CSSPrimitiveValue::createIdentifier(CSSValueSub);
case BaselineShift::Length:
return SVGLengthValue::toCSSPrimitiveValue(svgStyle.baselineShiftValue());
}
ASSERT_NOT_REACHED();
return nullptr;
}
case CSSPropertyBufferedRendering:
return CSSPrimitiveValue::create(svgStyle.bufferedRendering());
case CSSPropertyGlyphOrientationHorizontal:
return glyphOrientationToCSSPrimitiveValue(svgStyle.glyphOrientationHorizontal());
case CSSPropertyGlyphOrientationVertical: {
if (RefPtr<CSSPrimitiveValue> value = glyphOrientationToCSSPrimitiveValue(svgStyle.glyphOrientationVertical()))
return value;
if (svgStyle.glyphOrientationVertical() == GlyphOrientation::Auto)
return CSSPrimitiveValue::createIdentifier(CSSValueAuto);
return nullptr;
}
case CSSPropertyVectorEffect:
return CSSPrimitiveValue::create(svgStyle.vectorEffect());
case CSSPropertyMaskType:
return CSSPrimitiveValue::create(svgStyle.maskType());
case CSSPropertyMarker:
// this property is not yet implemented in the engine
break;
default:
// If you crash here, it's because you added a css property and are not handling it
// in either this switch statement or the one in CSSComputedStyleDelcaration::getPropertyCSSValue
ASSERT_WITH_MESSAGE(0, "unimplemented propertyID: %d", propertyID);
}
return nullptr;
}
}
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