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LibJS+LibUnicode: Return the appropriate time zone name depending on DST

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This commit is contained in:
Timothy Flynn 2022-01-19 14:54:19 -05:00 • committed by Linus Groh
parent bf677eb485
commit 4400150cd2
5 changed files with 79 additions and 26 deletions
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6
Userland/Libraries/LibJS/Runtime/DatePrototype.cpp
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@ -1057,8 +1057,10 @@ String time_zone_string(double time)
auto tz_name = TimeZone::current_time_zone();
// Most implementations seem to prefer the long-form display name of the time zone. Not super important, but we may as well match that behavior.
if (auto long_name = Unicode::get_time_zone_name(Unicode::default_locale(), tz_name, Unicode::CalendarPatternStyle::Long); long_name.has_value())
tz_name = long_name.release_value();
if (auto maybe_offset = TimeZone::get_time_zone_offset(tz_name, AK::Time::from_milliseconds(time)); maybe_offset.has_value()) {
if (auto long_name = Unicode::get_time_zone_name(Unicode::default_locale(), tz_name, Unicode::CalendarPatternStyle::Long, maybe_offset->in_dst); long_name.has_value())
tz_name = long_name.release_value();
}
// 7. Return the string-concatenation of offsetSign, offsetHour, offsetMin, and tzName.
return String::formatted("{}{:02}{:02} ({})", offset_sign, offset_hour, offset_min, tz_name);