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1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "device/time_zone_monitor/time_zone_monitor.h" | |
6 | |
7 #include "base/logging.h" | |
8 #include "build/build_config.h" | |
9 #include "third_party/icu/source/common/unicode/unistr.h" | |
10 #include "third_party/icu/source/i18n/unicode/timezone.h" | |
11 | |
12 namespace device { | |
13 | |
14 TimeZoneMonitor::TimeZoneMonitor() { | |
15 DCHECK(thread_checker_.CalledOnValidThread()); | |
16 } | |
17 | |
18 TimeZoneMonitor::~TimeZoneMonitor() { | |
19 DCHECK(thread_checker_.CalledOnValidThread()); | |
20 } | |
21 | |
22 void TimeZoneMonitor::Bind(device::mojom::TimeZoneMonitorRequest request) { | |
23 bindings_.AddBinding(this, std::move(request)); | |
24 } | |
25 | |
26 void TimeZoneMonitor::NotifyClients() { | |
27 DCHECK(thread_checker_.CalledOnValidThread()); | |
28 #if defined(OS_CHROMEOS) | |
29 // On CrOS, ICU's default tz is already set to a new zone. No | |
30 // need to redetect it with detectHostTimeZone(). | |
31 std::unique_ptr<icu::TimeZone> new_zone(icu::TimeZone::createDefault()); | |
32 #else | |
33 icu::TimeZone* new_zone = icu::TimeZone::detectHostTimeZone(); | |
34 #if defined(OS_LINUX) | |
35 // We get here multiple times on Linux per a single tz change, but | |
36 // want to update the ICU default zone and notify renderer only once. | |
37 std::unique_ptr<icu::TimeZone> current_zone(icu::TimeZone::createDefault()); | |
38 if (*current_zone == *new_zone) { | |
39 VLOG(1) << "timezone already updated"; | |
40 delete new_zone; | |
41 return; | |
42 } | |
43 #endif | |
44 icu::TimeZone::adoptDefault(new_zone); | |
45 #endif | |
46 icu::UnicodeString zone_id; | |
47 std::string zone_id_str; | |
48 new_zone->getID(zone_id).toUTF8String(zone_id_str); | |
49 VLOG(1) << "timezone reset to " << zone_id_str; | |
50 | |
51 clients_.ForAllPtrs( | |
52 [&zone_id_str](device::mojom::TimeZoneMonitorClient* client) { | |
53 client->OnTimeZoneChange(zone_id_str); | |
54 }); | |
55 } | |
56 | |
57 void TimeZoneMonitor::AddClient( | |
58 device::mojom::TimeZoneMonitorClientPtr client) { | |
59 clients_.AddPtr(std::move(client)); | |
60 } | |
61 | |
62 } // namespace device | |
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