105 lines
2.9 KiB
Rust
105 lines
2.9 KiB
Rust
// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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//! Core Foundation time zone objects.
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pub use core_foundation_sys::timezone::*;
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use core_foundation_sys::base::kCFAllocatorDefault;
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use base::TCFType;
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use date::{CFDate, CFTimeInterval};
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use string::CFString;
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#[cfg(feature = "with-chrono")]
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use chrono::{FixedOffset, NaiveDateTime};
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declare_TCFType!{
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/// A time zone.
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CFTimeZone, CFTimeZoneRef
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}
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impl_TCFType!(CFTimeZone, CFTimeZoneRef, CFTimeZoneGetTypeID);
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impl_CFTypeDescription!(CFTimeZone);
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impl Default for CFTimeZone {
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fn default() -> CFTimeZone {
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unsafe {
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let tz_ref = CFTimeZoneCopyDefault();
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TCFType::wrap_under_create_rule(tz_ref)
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}
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}
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}
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impl CFTimeZone {
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#[inline]
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pub fn new(interval: CFTimeInterval) -> CFTimeZone {
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unsafe {
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let tz_ref = CFTimeZoneCreateWithTimeIntervalFromGMT(kCFAllocatorDefault, interval);
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TCFType::wrap_under_create_rule(tz_ref)
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}
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}
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#[inline]
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pub fn system() -> CFTimeZone {
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unsafe {
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let tz_ref = CFTimeZoneCopySystem();
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TCFType::wrap_under_create_rule(tz_ref)
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}
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}
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pub fn seconds_from_gmt(&self, date: CFDate) -> CFTimeInterval {
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unsafe {
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CFTimeZoneGetSecondsFromGMT(self.0, date.abs_time())
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}
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}
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#[cfg(feature = "with-chrono")]
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pub fn offset_at_date(&self, date: NaiveDateTime) -> FixedOffset {
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let date = CFDate::from_naive_utc(date);
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FixedOffset::east(self.seconds_from_gmt(date) as i32)
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}
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#[cfg(feature = "with-chrono")]
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pub fn from_offset(offset: FixedOffset) -> CFTimeZone {
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CFTimeZone::new(offset.local_minus_utc() as f64)
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}
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/// The timezone database ID that identifies the time zone. E.g. "America/Los_Angeles" or
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/// "Europe/Paris".
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pub fn name(&self) -> CFString {
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unsafe {
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CFString::wrap_under_get_rule(CFTimeZoneGetName(self.0))
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}
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}
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}
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#[cfg(test)]
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mod test {
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use super::CFTimeZone;
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#[cfg(feature = "with-chrono")]
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use chrono::{NaiveDateTime, FixedOffset};
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#[test]
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fn timezone_comparison() {
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let system = CFTimeZone::system();
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let default = CFTimeZone::default();
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assert_eq!(system, default);
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}
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#[test]
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#[cfg(feature = "with-chrono")]
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fn timezone_chrono_conversion() {
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let offset = FixedOffset::west(28800);
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let tz = CFTimeZone::from_offset(offset);
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let converted = tz.offset_at_date(NaiveDateTime::from_timestamp(0, 0));
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assert_eq!(offset, converted);
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}
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}
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