#include "config.h"
#include "MediaQueryExp.h"
#include "CSSAspectRatioValue.h"
#include "CSSParser.h"
#include "CSSPrimitiveValue.h"
#include "CSSValueList.h"
#include "MediaFeatureNames.h"
#include <wtf/text/StringBuilder.h>
namespace WebCore {
static inline bool isFeatureValidWithIdentifier(const AtomicString& mediaFeature, const CSSParserValue& value)
{
if (!value.id)
return false;
return mediaFeature == MediaFeatureNames::orientation
#if ENABLE(VIEW_MODE_CSS_MEDIA)
|| mediaFeature == MediaFeatureNames::viewMode
#endif
|| mediaFeature == MediaFeatureNames::colorGamut
|| mediaFeature == MediaFeatureNames::anyHover
|| mediaFeature == MediaFeatureNames::anyPointer
|| mediaFeature == MediaFeatureNames::hover
|| mediaFeature == MediaFeatureNames::invertedColors
|| mediaFeature == MediaFeatureNames::pointer;
}
static inline bool isFeatureValidWithNonNegativeLengthOrNumber(const AtomicString& mediaFeature, const CSSParserValue& value)
{
if (!(CSSPrimitiveValue::isLength(value.unit) || value.unit == CSSPrimitiveValue::CSS_NUMBER) || value.fValue < 0)
return false;
return mediaFeature == MediaFeatureNames::height
|| mediaFeature == MediaFeatureNames::maxHeight
|| mediaFeature == MediaFeatureNames::minHeight
|| mediaFeature == MediaFeatureNames::width
|| mediaFeature == MediaFeatureNames::maxWidth
|| mediaFeature == MediaFeatureNames::minWidth
|| mediaFeature == MediaFeatureNames::deviceHeight
|| mediaFeature == MediaFeatureNames::maxDeviceHeight
|| mediaFeature == MediaFeatureNames::minDeviceHeight
|| mediaFeature == MediaFeatureNames::deviceWidth
|| mediaFeature == MediaFeatureNames::maxDeviceWidth
|| mediaFeature == MediaFeatureNames::minDeviceWidth;
}
static inline bool isFeatureValidWithDensity(const AtomicString& mediaFeature, const CSSParserValue& value)
{
if (!CSSPrimitiveValue::isResolution(value.unit) || value.fValue <= 0)
return false;
return mediaFeature == MediaFeatureNames::resolution
|| mediaFeature == MediaFeatureNames::maxResolution
|| mediaFeature == MediaFeatureNames::minResolution;
}
static inline bool isFeatureValidWithNonNegativeInteger(const AtomicString& mediaFeature, const CSSParserValue& value)
{
if (!value.isInt || value.fValue < 0)
return false;
return mediaFeature == MediaFeatureNames::color
|| mediaFeature == MediaFeatureNames::maxColor
|| mediaFeature == MediaFeatureNames::minColor
|| mediaFeature == MediaFeatureNames::colorIndex
|| mediaFeature == MediaFeatureNames::maxColorIndex
|| mediaFeature == MediaFeatureNames::minColorIndex
|| mediaFeature == MediaFeatureNames::minMonochrome
|| mediaFeature == MediaFeatureNames::maxMonochrome;
}
static inline bool isFeatureValidWithNonNegativeNumber(const AtomicString& mediaFeature, const CSSParserValue& value)
{
if (value.unit != CSSPrimitiveValue::CSS_NUMBER || value.fValue < 0)
return false;
return mediaFeature == MediaFeatureNames::transform2d
|| mediaFeature == MediaFeatureNames::transform3d
|| mediaFeature == MediaFeatureNames::transition
|| mediaFeature == MediaFeatureNames::animation
|| mediaFeature == MediaFeatureNames::devicePixelRatio
|| mediaFeature == MediaFeatureNames::maxDevicePixelRatio
|| mediaFeature == MediaFeatureNames::minDevicePixelRatio;
}
static inline bool isFeatureValidWithZeroOrOne(const AtomicString& mediaFeature, const CSSParserValue& value)
{
if (!value.isInt || !(value.fValue == 1 || !value.fValue))
return false;
return mediaFeature == MediaFeatureNames::grid;
}
static inline bool isAspectRatioFeature(const AtomicString& mediaFeature)
{
return mediaFeature == MediaFeatureNames::aspectRatio
|| mediaFeature == MediaFeatureNames::deviceAspectRatio
|| mediaFeature == MediaFeatureNames::minAspectRatio
|| mediaFeature == MediaFeatureNames::maxAspectRatio
|| mediaFeature == MediaFeatureNames::minDeviceAspectRatio
|| mediaFeature == MediaFeatureNames::maxDeviceAspectRatio;
}
static inline bool isFeatureValidWithoutValue(const AtomicString& mediaFeature)
{
return mediaFeature == MediaFeatureNames::anyHover
|| mediaFeature == MediaFeatureNames::anyPointer
|| mediaFeature == MediaFeatureNames::monochrome
|| mediaFeature == MediaFeatureNames::color
|| mediaFeature == MediaFeatureNames::colorIndex
|| mediaFeature == MediaFeatureNames::grid
|| mediaFeature == MediaFeatureNames::height
|| mediaFeature == MediaFeatureNames::width
|| mediaFeature == MediaFeatureNames::deviceHeight
|| mediaFeature == MediaFeatureNames::deviceWidth
|| mediaFeature == MediaFeatureNames::orientation
|| mediaFeature == MediaFeatureNames::aspectRatio
|| mediaFeature == MediaFeatureNames::deviceAspectRatio
|| mediaFeature == MediaFeatureNames::hover
|| mediaFeature == MediaFeatureNames::transform2d
|| mediaFeature == MediaFeatureNames::transform3d
|| mediaFeature == MediaFeatureNames::transition
|| mediaFeature == MediaFeatureNames::animation
|| mediaFeature == MediaFeatureNames::invertedColors
#if ENABLE(VIEW_MODE_CSS_MEDIA)
|| mediaFeature == MediaFeatureNames::viewMode
#endif
|| mediaFeature == MediaFeatureNames::pointer
|| mediaFeature == MediaFeatureNames::devicePixelRatio
|| mediaFeature == MediaFeatureNames::resolution
|| mediaFeature == MediaFeatureNames::videoPlayableInline;
}
static inline bool isFeatureValidWithNumberWithUnit(const AtomicString& mediaFeature, const CSSParserValue& value)
{
return isFeatureValidWithDensity(mediaFeature, value) || isFeatureValidWithNonNegativeLengthOrNumber(mediaFeature, value);
}
static inline bool isFeatureValidWithNumber(const AtomicString& mediaFeature, const CSSParserValue& value)
{
return isFeatureValidWithNonNegativeInteger(mediaFeature, value) || isFeatureValidWithNonNegativeNumber(mediaFeature, value) || isFeatureValidWithZeroOrOne(mediaFeature, value);
}
static inline bool isSlash(CSSParserValue& value)
{
return value.unit == CSSParserValue::Operator && value.iValue == '/';
}
static inline bool isPositiveIntegerValue(CSSParserValue& value)
{
return value.unit == CSSPrimitiveValue::CSS_NUMBER && value.fValue > 0 && value.isInt;
}
MediaQueryExpression::MediaQueryExpression(const AtomicString& mediaFeature, CSSParserValueList* valueList)
: m_mediaFeature(mediaFeature)
{
if (!valueList) {
if (isFeatureValidWithoutValue(mediaFeature))
m_isValid = true;
} else if (valueList->size() == 1) {
auto& value = *valueList->valueAt(0);
if (isFeatureValidWithIdentifier(mediaFeature, value)) {
m_value = CSSPrimitiveValue::createIdentifier(value.id);
m_isValid = true;
} else if (isFeatureValidWithNumberWithUnit(mediaFeature, value) || isFeatureValidWithNonNegativeLengthOrNumber(mediaFeature, value)) {
m_value = CSSPrimitiveValue::create(value.fValue, (CSSPrimitiveValue::UnitTypes) value.unit);
m_isValid = true;
} else if (isFeatureValidWithNumber(mediaFeature, value)) {
m_value = CSSPrimitiveValue::create(value.fValue, CSSPrimitiveValue::CSS_NUMBER);
m_isValid = true;
}
} else if (valueList->size() == 3 && isAspectRatioFeature(mediaFeature)) {
auto& numerator = *valueList->valueAt(0);
auto& slash = *valueList->valueAt(1);
auto& denominator = *valueList->valueAt(2);
if (isPositiveIntegerValue(numerator) && isSlash(slash) && isPositiveIntegerValue(denominator)) {
m_value = CSSAspectRatioValue::create(numerator.fValue, denominator.fValue);
m_isValid = true;
}
}
}
String MediaQueryExpression::serialize() const
{
if (!m_serializationCache.isNull())
return m_serializationCache;
StringBuilder result;
result.append('(');
result.append(m_mediaFeature.convertToASCIILowercase());
if (m_value) {
result.appendLiteral(": ");
result.append(m_value->cssText());
}
result.append(')');
m_serializationCache = result.toString();
return m_serializationCache;
}
}