std::pair<String, String> InputType::validationMessage(const InputTypeView& inputTypeView) const
{
const String value = element().value();
// The order of the following checks is meaningful. e.g. We'd like to show the
// badInput message even if the control has other validation errors.
if (inputTypeView.hasBadInput())
return std::make_pair(badInputText(), emptyString());
if (valueMissing(value))
return std::make_pair(valueMissingText(), emptyString());
if (typeMismatch())
return std::make_pair(typeMismatchText(), emptyString());
if (patternMismatch(value)) {
// https://html.spec.whatwg.org/multipage/forms.html#attr-input-pattern
// When an input element has a pattern attribute specified, authors
// should include a title attribute to give a description of the
// pattern. User agents may use the contents of this attribute, if it
// is present, when informing the user that the pattern is not matched
return std::make_pair(locale().queryString(WebLocalizedString::ValidationPatternMismatch), element().fastGetAttribute(titleAttr).getString());
}
if (element().tooLong())
return std::make_pair(locale().validationMessageTooLongText(value.length(), element().maxLength()), emptyString());
if (element().tooShort())
return std::make_pair(locale().validationMessageTooShortText(value.length(), element().minLength()), emptyString());
if (!isSteppable())
return std::make_pair(emptyString(), emptyString());
const Decimal numericValue = parseToNumberOrNaN(value);
if (!numericValue.isFinite())
return std::make_pair(emptyString(), emptyString());
StepRange stepRange(createStepRange(RejectAny));
if (numericValue < stepRange.minimum())
return std::make_pair(rangeUnderflowText(stepRange.minimum()), emptyString());
if (numericValue > stepRange.maximum())
return std::make_pair(rangeOverflowText(stepRange.maximum()), emptyString());
if (stepRange.stepMismatch(numericValue)) {
DCHECK(stepRange.hasStep());
Decimal candidate1 = stepRange.clampValue(numericValue);
String localizedCandidate1 = localizeValue(serialize(candidate1));
Decimal candidate2 = candidate1 < numericValue ? candidate1 + stepRange.step() : candidate1 - stepRange.step();
if (!candidate2.isFinite() || candidate2 < stepRange.minimum() || candidate2 > stepRange.maximum())
return std::make_pair(locale().queryString(WebLocalizedString::ValidationStepMismatchCloseToLimit, localizedCandidate1), emptyString());
String localizedCandidate2 = localizeValue(serialize(candidate2));
if (candidate1 < candidate2)
return std::make_pair(locale().queryString(WebLocalizedString::ValidationStepMismatch, localizedCandidate1, localizedCandidate2), emptyString());
return std::make_pair(locale().queryString(WebLocalizedString::ValidationStepMismatch, localizedCandidate2, localizedCandidate1), emptyString());
}
return std::make_pair(emptyString(), emptyString());
}
String InputType::validationMessage() const
{
String value = element().value();
// The order of the following checks is meaningful. e.g. We'd like to show the
// badInput message even if the control has other validation errors.
if (hasBadInput())
return badInputText();
if (valueMissing(value))
return valueMissingText();
if (typeMismatch())
return typeMismatchText();
if (patternMismatch(value))
return validationMessagePatternMismatchText();
if (element().tooLong())
return validationMessageTooLongText(numGraphemeClusters(value), element().maxLength());
if (!isSteppable())
return emptyString();
const Decimal numericValue = parseToNumberOrNaN(value);
if (!numericValue.isFinite())
return emptyString();
StepRange stepRange(createStepRange(RejectAny));
if (numericValue < stepRange.minimum())
return validationMessageRangeUnderflowText(serialize(stepRange.minimum()));
if (numericValue > stepRange.maximum())
return validationMessageRangeOverflowText(serialize(stepRange.maximum()));
if (stepRange.stepMismatch(numericValue)) {
const String stepString = stepRange.hasStep() ? serializeForNumberType(stepRange.step() / stepRange.stepScaleFactor()) : emptyString();
return validationMessageStepMismatchText(serialize(stepRange.stepBase()), stepString);
}
return emptyString();
}