LibWeb: Implement string->number for type=datetime-local input elements

This commit is contained in:
sideshowbarker 2025-03-07 23:43:42 +09:00 committed by Tim Ledbetter
parent 90b303215e
commit 4def3fe567
Notes: github-actions[bot] 2025-03-10 10:35:00 +00:00
6 changed files with 148 additions and 17 deletions

View file

@ -2170,6 +2170,24 @@ static Optional<double> convert_date_string_to_number(StringView input)
return date_time.milliseconds_since_epoch();
}
// https://html.spec.whatwg.org/multipage/input.html#local-date-and-time-state-(type=datetime-local):parse-a-local-date-and-time-string-2
static Optional<double> convert_local_date_and_time_string_to_number(StringView input)
{
// The algorithm to convert a string to a number, given a string input, is as follows: If parsing a date and time
// from input results in an error, then return an error; otherwise, return the number of milliseconds elapsed from
// midnight on the morning of 1970-01-01 (the time represented by the value "1970-01-01T00:00:00.0") to the parsed
// local date and time, ignoring leap seconds.
auto maybe_date_and_time = parse_a_local_date_and_time_string(input);
if (!maybe_date_and_time.has_value())
return {};
auto date_and_time = maybe_date_and_time.value();
auto date = date_and_time.date;
auto time = date_and_time.time;
auto date_time = UnixDateTime::from_unix_time_parts(date.year, date.month, date.day, time.hour, time.minute, time.second, 0);
return date_time.milliseconds_since_epoch();
}
// https://html.spec.whatwg.org/multipage/input.html#time-state-(type=time):concept-input-value-string-number
Optional<double> HTMLInputElement::convert_time_string_to_number(StringView input) const
{
@ -2205,7 +2223,9 @@ Optional<double> HTMLInputElement::convert_string_to_number(StringView input) co
if (type_state() == TypeAttributeState::Time)
return convert_time_string_to_number(input);
dbgln("HTMLInputElement::convert_string_to_number() not implemented for input type {}", type());
if (type_state() == TypeAttributeState::LocalDateAndTime)
return convert_local_date_and_time_string_to_number(input);
return {};
}