void CSSToStyleMap::mapFillYPosition(CSSPropertyID, FillLayer* layer, CSSValue* value)
{
if (value->isInitialValue()) {
layer->setYPosition(FillLayer::initialFillYPosition(layer->type()));
return;
}
if (!value->isPrimitiveValue())
return;
float zoomFactor = style()->effectiveZoom();
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
Length length;
if (primitiveValue->isLength())
length = primitiveValue->computeLength<Length>(style(), rootElementStyle(), zoomFactor);
else if (primitiveValue->isPercentage())
length = Length(primitiveValue->getDoubleValue(), Percent);
else if (primitiveValue->isCalculatedPercentageWithLength())
length = Length(primitiveValue->cssCalcValue()->toCalcValue(style(), rootElementStyle(), zoomFactor));
else if (primitiveValue->isViewportPercentageLength())
length = primitiveValue->viewportPercentageLength();
else
return;
layer->setYPosition(length);
}
void CSSToStyleMap::mapFillYPosition(CSSPropertyID propertyID, FillLayer* layer, CSSValue* value)
{
if (value->isInitialValue()) {
layer->setYPosition(FillLayer::initialFillYPosition(layer->type()));
return;
}
if (!value->isPrimitiveValue())
return;
float zoomFactor = style()->effectiveZoom();
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
Pair* pair = primitiveValue->getPairValue();
if (pair) {
ASSERT_UNUSED(propertyID, propertyID == CSSPropertyBackgroundPositionY || propertyID == CSSPropertyWebkitMaskPositionY);
primitiveValue = pair->second();
}
Length length;
if (primitiveValue->isLength())
length = primitiveValue->computeLength<Length>(style(), rootElementStyle(), zoomFactor);
else if (primitiveValue->isPercentage())
length = Length(primitiveValue->getDoubleValue(), Percent);
else if (primitiveValue->isCalculatedPercentageWithLength())
length = Length(primitiveValue->cssCalcValue()->toCalcValue(style(), rootElementStyle(), zoomFactor));
else if (primitiveValue->isViewportPercentageLength())
length = primitiveValue->viewportPercentageLength();
else
return;
layer->setYPosition(length);
if (pair)
layer->setBackgroundYOrigin(*(pair->first()));
}
CSSToLengthConversionData StyleResolverState::fontSizeConversionData() const
{
float em = parentStyle()->specifiedFontSize();
float rem = rootElementStyle() ? rootElementStyle()->specifiedFontSize() : 1;
CSSToLengthConversionData::FontSizes fontSizes(em, rem, &parentStyle()->font());
CSSToLengthConversionData::ViewportSize viewportSize(document().layoutViewItem());
return CSSToLengthConversionData(style(), fontSizes, viewportSize, 1);
}
float SVGLengthContext::convertValueToUserUnits(float value, SVGLengthMode mode, CSSPrimitiveValue::UnitType fromUnit) const
{
float userUnits = value;
switch (fromUnit) {
case CSSPrimitiveValue::UnitType::Pixels:
case CSSPrimitiveValue::UnitType::Number:
case CSSPrimitiveValue::UnitType::UserUnits:
userUnits = value;
break;
case CSSPrimitiveValue::UnitType::Percentage: {
FloatSize viewportSize;
if (!determineViewport(viewportSize))
return 0;
userUnits = value * dimensionForLengthMode(mode, viewportSize) / 100;
break;
}
case CSSPrimitiveValue::UnitType::Ems:
userUnits = convertValueFromEMSToUserUnits(computedStyleForLengthResolving(m_context), value);
break;
case CSSPrimitiveValue::UnitType::Exs:
userUnits = convertValueFromEXSToUserUnits(value);
break;
case CSSPrimitiveValue::UnitType::Centimeters:
userUnits = value * cssPixelsPerCentimeter;
break;
case CSSPrimitiveValue::UnitType::Millimeters:
userUnits = value * cssPixelsPerMillimeter;
break;
case CSSPrimitiveValue::UnitType::Inches:
userUnits = value * cssPixelsPerInch;
break;
case CSSPrimitiveValue::UnitType::Points:
userUnits = value * cssPixelsPerPoint;
break;
case CSSPrimitiveValue::UnitType::Picas:
userUnits = value * cssPixelsPerPica;
break;
case CSSPrimitiveValue::UnitType::Rems:
userUnits = convertValueFromEMSToUserUnits(rootElementStyle(m_context), value);
break;
case CSSPrimitiveValue::UnitType::Chs:
userUnits = convertValueFromCHSToUserUnits(value);
break;
case CSSPrimitiveValue::UnitType::ViewportWidth:
case CSSPrimitiveValue::UnitType::ViewportHeight:
case CSSPrimitiveValue::UnitType::ViewportMin:
case CSSPrimitiveValue::UnitType::ViewportMax:
userUnits = value * dimensionForViewportUnit(m_context, fromUnit);
break;
default:
ASSERT_NOT_REACHED();
break;
}
// Since we mix css <length> values with svg's length values we need to
// clamp values to the narrowest range, otherwise it can result in
// rendering issues.
return CSSPrimitiveValue::clampToCSSLengthRange(userUnits);
}
LengthBox CSSToStyleMap::mapNinePieceImageQuad(CSSValue* value)
{
if (!value || !value->isPrimitiveValue())
return LengthBox();
// Get our zoom value.
float zoom = useSVGZoomRules() ? 1.0f : style()->effectiveZoom();
// Retrieve the primitive value.
CSSPrimitiveValue* borderWidths = static_cast<CSSPrimitiveValue*>(value);
// Set up a length box to represent our image slices.
LengthBox box; // Defaults to 'auto' so we don't have to handle that explicitly below.
Quad* slices = borderWidths->getQuadValue();
if (slices->top()->isNumber())
box.m_top = Length(slices->top()->getIntValue(), Relative);
else if (slices->top()->isPercentage())
box.m_top = Length(slices->top()->getDoubleValue(CSSPrimitiveValue::CSS_PERCENTAGE), Percent);
else if (slices->top()->getValueID() != CSSValueAuto)
box.m_top = slices->top()->computeLength<Length>(style(), rootElementStyle(), zoom);
if (slices->right()->isNumber())
box.m_right = Length(slices->right()->getIntValue(), Relative);
else if (slices->right()->isPercentage())
box.m_right = Length(slices->right()->getDoubleValue(CSSPrimitiveValue::CSS_PERCENTAGE), Percent);
else if (slices->right()->getValueID() != CSSValueAuto)
box.m_right = slices->right()->computeLength<Length>(style(), rootElementStyle(), zoom);
if (slices->bottom()->isNumber())
box.m_bottom = Length(slices->bottom()->getIntValue(), Relative);
else if (slices->bottom()->isPercentage())
box.m_bottom = Length(slices->bottom()->getDoubleValue(CSSPrimitiveValue::CSS_PERCENTAGE), Percent);
else if (slices->bottom()->getValueID() != CSSValueAuto)
box.m_bottom = slices->bottom()->computeLength<Length>(style(), rootElementStyle(), zoom);
if (slices->left()->isNumber())
box.m_left = Length(slices->left()->getIntValue(), Relative);
else if (slices->left()->isPercentage())
box.m_left = Length(slices->left()->getDoubleValue(CSSPrimitiveValue::CSS_PERCENTAGE), Percent);
else if (slices->left()->getValueID() != CSSValueAuto)
box.m_left = slices->left()->computeLength<Length>(style(), rootElementStyle(), zoom);
return box;
}
void CSSToStyleMap::mapFillSize(CSSPropertyID, FillLayer* layer, CSSValue* value)
{
if (!value->isPrimitiveValue()) {
layer->setSizeType(SizeNone);
return;
}
CSSPrimitiveValue* primitiveValue = static_cast<CSSPrimitiveValue*>(value);
if (primitiveValue->getValueID() == CSSValueContain)
layer->setSizeType(Contain);
else if (primitiveValue->getValueID() == CSSValueCover)
layer->setSizeType(Cover);
else
layer->setSizeType(SizeLength);
LengthSize b = FillLayer::initialFillSizeLength(layer->type());
if (value->isInitialValue() || primitiveValue->getValueID() == CSSValueContain || primitiveValue->getValueID() == CSSValueCover) {
layer->setSizeLength(b);
return;
}
float zoomFactor = style()->effectiveZoom();
Length firstLength;
Length secondLength;
if (Pair* pair = primitiveValue->getPairValue()) {
CSSPrimitiveValue* first = static_cast<CSSPrimitiveValue*>(pair->first());
CSSPrimitiveValue* second = static_cast<CSSPrimitiveValue*>(pair->second());
firstLength = first->convertToLength<AnyConversion>(style(), rootElementStyle(), zoomFactor);
secondLength = second->convertToLength<AnyConversion>(style(), rootElementStyle(), zoomFactor);
} else {
firstLength = primitiveValue->convertToLength<AnyConversion>(style(), rootElementStyle(), zoomFactor);
secondLength = Length();
}
if (firstLength.isUndefined() || secondLength.isUndefined())
return;
b.setWidth(firstLength);
b.setHeight(secondLength);
layer->setSizeLength(b);
}
float SVGLengthContext::convertValueToUserUnits(float value, SVGLengthMode mode, SVGLengthType fromUnit) const
{
float userUnits = value;
switch (fromUnit) {
case LengthTypeUnknown:
return 0;
case LengthTypePX:
case LengthTypeNumber:
userUnits = value;
break;
case LengthTypePercentage: {
FloatSize viewportSize;
if (!determineViewport(viewportSize))
return 0;
userUnits = value * dimensionForLengthMode(mode, viewportSize) / 100;
break;
}
case LengthTypeEMS:
userUnits = convertValueFromEMSToUserUnits(computedStyleForLengthResolving(m_context), value);
break;
case LengthTypeEXS:
userUnits = convertValueFromEXSToUserUnits(value);
break;
case LengthTypeCM:
userUnits = value * cssPixelsPerCentimeter;
break;
case LengthTypeMM:
userUnits = value * cssPixelsPerMillimeter;
break;
case LengthTypeIN:
userUnits = value * cssPixelsPerInch;
break;
case LengthTypePT:
userUnits = value * cssPixelsPerPoint;
break;
case LengthTypePC:
userUnits = value * cssPixelsPerPica;
break;
case LengthTypeREMS:
userUnits = convertValueFromEMSToUserUnits(rootElementStyle(m_context), value);
break;
case LengthTypeCHS:
userUnits = convertValueFromCHSToUserUnits(value);
break;
default:
ASSERT_NOT_REACHED();
break;
}
// Since we mix css <length> values with svg's length values we need to
// clamp values to the narrowest range, otherwise it can result in
// rendering issues.
return CSSPrimitiveValue::clampToCSSLengthRange(userUnits);
}
float SVGLengthContext::convertValueFromUserUnits(
float value,
SVGLengthMode mode,
CSSPrimitiveValue::UnitType toUnit) const {
switch (toUnit) {
case CSSPrimitiveValue::UnitType::Pixels:
case CSSPrimitiveValue::UnitType::Number:
case CSSPrimitiveValue::UnitType::Integer:
case CSSPrimitiveValue::UnitType::UserUnits:
return value;
case CSSPrimitiveValue::UnitType::Percentage: {
FloatSize viewportSize;
if (!determineViewport(viewportSize))
return 0;
float dimension = dimensionForLengthMode(mode, viewportSize);
if (!dimension)
return 0;
// LengthTypePercentage is represented with 100% = 100.0.
// Good for accuracy but could eventually be changed.
return value * 100 / dimension;
}
case CSSPrimitiveValue::UnitType::Ems:
return convertValueFromUserUnitsToEMS(
computedStyleForLengthResolving(m_context), value);
case CSSPrimitiveValue::UnitType::Exs:
return convertValueFromUserUnitsToEXS(value);
case CSSPrimitiveValue::UnitType::Rems:
return convertValueFromUserUnitsToEMS(rootElementStyle(m_context), value);
case CSSPrimitiveValue::UnitType::Chs:
return convertValueFromUserUnitsToCHS(value);
case CSSPrimitiveValue::UnitType::Centimeters:
return value / cssPixelsPerCentimeter;
case CSSPrimitiveValue::UnitType::Millimeters:
return value / cssPixelsPerMillimeter;
case CSSPrimitiveValue::UnitType::Inches:
return value / cssPixelsPerInch;
case CSSPrimitiveValue::UnitType::Points:
return value / cssPixelsPerPoint;
case CSSPrimitiveValue::UnitType::Picas:
return value / cssPixelsPerPica;
case CSSPrimitiveValue::UnitType::ViewportWidth:
case CSSPrimitiveValue::UnitType::ViewportHeight:
case CSSPrimitiveValue::UnitType::ViewportMin:
case CSSPrimitiveValue::UnitType::ViewportMax:
return value / dimensionForViewportUnit(m_context, toUnit);
default:
break;
}
ASSERT_NOT_REACHED();
return 0;
}
float SVGLengthContext::resolveValue(const CSSPrimitiveValue& primitiveValue,
SVGLengthMode mode) const {
const ComputedStyle* style = computedStyleForLengthResolving(m_context);
if (!style)
return 0;
const ComputedStyle* rootStyle = rootElementStyle(m_context);
if (!rootStyle)
return 0;
CSSToLengthConversionData conversionData = CSSToLengthConversionData(
style, rootStyle, m_context->document().layoutViewItem(), 1.0f);
Length length = primitiveValue.convertToLength(conversionData);
return valueForLength(length, 1.0f, mode);
}
StyleResolverState::StyleResolverState(Document& document, Element* element, RenderStyle* parentStyle)
: m_elementContext(element ? ElementResolveContext(*element) : ElementResolveContext(document))
, m_document(document)
, m_style(nullptr)
, m_cssToLengthConversionData(0, rootElementStyle(), document.renderView())
, m_parentStyle(parentStyle)
, m_lineHeightValue(nullptr)
, m_styleMap(*this, m_elementStyleResources)
{
if (!parentStyle && m_elementContext.parentNode())
m_parentStyle = m_elementContext.parentNode()->renderStyle();
ASSERT(document.isActive());
m_elementStyleResources.setDeviceScaleFactor(document.frameHost()->deviceScaleFactor());
}
float SVGLengthContext::convertValueFromUserUnits(float value, SVGLengthMode mode, SVGLengthType toUnit) const
{
switch (toUnit) {
case LengthTypeUnknown:
return 0;
case LengthTypeNumber:
return value;
case LengthTypePercentage: {
FloatSize viewportSize;
if (!determineViewport(viewportSize))
return 0;
float dimension = dimensionForLengthMode(mode, viewportSize);
if (!dimension)
return 0;
// LengthTypePercentage is represented with 100% = 100.0.
// Good for accuracy but could eventually be changed.
return value * 100 / dimension;
}
case LengthTypeEMS:
return convertValueFromUserUnitsToEMS(computedStyleForLengthResolving(m_context), value);
case LengthTypeEXS:
return convertValueFromUserUnitsToEXS(value);
case LengthTypeREMS:
return convertValueFromUserUnitsToEMS(rootElementStyle(m_context), value);
case LengthTypeCHS:
return convertValueFromUserUnitsToCHS(value);
case LengthTypePX:
return value;
case LengthTypeCM:
return value / cssPixelsPerCentimeter;
case LengthTypeMM:
return value / cssPixelsPerMillimeter;
case LengthTypeIN:
return value / cssPixelsPerInch;
case LengthTypePT:
return value / cssPixelsPerPoint;
case LengthTypePC:
return value / cssPixelsPerPica;
}
ASSERT_NOT_REACHED();
return 0;
}
StyleResolverState::StyleResolverState(Document& document, Element* element, RenderStyle* parentStyle)
: m_elementContext(element ? ElementResolveContext(*element) : ElementResolveContext(document))
, m_document(document)
, m_style(nullptr)
, m_cssToLengthConversionData(0, rootElementStyle(), document.renderView())
, m_parentStyle(parentStyle)
, m_applyPropertyToRegularStyle(true)
, m_applyPropertyToVisitedLinkStyle(false)
, m_lineHeightValue(nullptr)
, m_styleMap(*this, m_elementStyleResources)
{
if (!parentStyle && m_elementContext.parentNode())
m_parentStyle = m_elementContext.parentNode()->renderStyle();
// FIXME: Animation unitests will start animations on non-active documents!
// http://crbug.com/330095
// ASSERT(document.isActive());
if (!document.isActive())
return;
m_elementStyleResources.setDeviceScaleFactor(document.frameHost()->deviceScaleFactor());
}
