bool SVGLengthTearOff::hasExposedLengthUnit() {
if (target()->isCalculated())
return false;
CSSPrimitiveValue::UnitType unit = target()->typeWithCalcResolved();
return isValidLengthUnit(unit) ||
unit == CSSPrimitiveValue::UnitType::Unknown ||
unit == CSSPrimitiveValue::UnitType::UserUnits;
}
void SVGLengthTearOff::newValueSpecifiedUnits(unsigned short unitType, float valueInSpecifiedUnits, ExceptionState& exceptionState)
{
if (isImmutable()) {
exceptionState.throwDOMException(NoModificationAllowedError, "The object is read-only.");
return;
}
if (!isValidLengthUnit(unitType)) {
exceptionState.throwDOMException(NotSupportedError, "Cannot set value with unknown or invalid units (" + String::number(unitType) + ").");
return;
}
target()->newValueSpecifiedUnits(toCSSUnitType(unitType), valueInSpecifiedUnits);
commitChange();
}
void SVGLengthTearOff::convertToSpecifiedUnits(unsigned short unitType, ExceptionState& exceptionState)
{
if (isImmutable()) {
exceptionState.throwDOMException(NoModificationAllowedError, "The object is read-only.");
return;
}
if (!isValidLengthUnit(unitType)) {
exceptionState.throwDOMException(NotSupportedError, "Cannot convert to unknown or invalid units (" + String::number(unitType) + ").");
return;
}
if ((target()->isRelative() || SVGLength::isRelativeUnit(toCSSUnitType(unitType)))
&& !canResolveRelativeUnits(contextElement())) {
exceptionState.throwDOMException(NotSupportedError, "Could not resolve relative length.");
return;
}
SVGLengthContext lengthContext(contextElement());
target()->convertToSpecifiedUnits(toCSSUnitType(unitType), lengthContext);
commitChange();
}