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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "content/browser/time_zone_monitor.h" | 5 #include "content/browser/time_zone_monitor.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 #include "build/build_config.h" | 8 #include "build/build_config.h" |
9 #include "content/public/browser/browser_thread.h" | 9 #include "content/public/browser/browser_thread.h" |
10 #include "content/public/browser/render_process_host.h" | |
11 #include "third_party/icu/source/common/unicode/unistr.h" | 10 #include "third_party/icu/source/common/unicode/unistr.h" |
12 #include "third_party/icu/source/i18n/unicode/timezone.h" | 11 #include "third_party/icu/source/i18n/unicode/timezone.h" |
13 | 12 |
14 namespace content { | 13 namespace content { |
15 | 14 |
16 TimeZoneMonitor::TimeZoneMonitor() { | 15 TimeZoneMonitor::TimeZoneMonitor() { |
17 DCHECK_CURRENTLY_ON(BrowserThread::UI); | 16 DCHECK_CURRENTLY_ON(BrowserThread::UI); |
18 } | 17 } |
19 | 18 |
20 TimeZoneMonitor::~TimeZoneMonitor() { | 19 TimeZoneMonitor::~TimeZoneMonitor() { |
21 DCHECK_CURRENTLY_ON(BrowserThread::UI); | 20 DCHECK_CURRENTLY_ON(BrowserThread::UI); |
| 21 |
| 22 // Explicitly tear down the connections so that the callbacks in |
| 23 // |on_time_zone_change_tasks_| can safely be destroyed (otherwise they |
| 24 // can DCHECK due to being destroyed unfilled while their connection is |
| 25 // still active). |
| 26 bindings_.CloseAllBindings(); |
22 } | 27 } |
23 | 28 |
24 void TimeZoneMonitor::NotifyRenderers() { | 29 void TimeZoneMonitor::Bind(device::mojom::TimeZoneMonitorRequest request) { |
| 30 bindings_.AddBinding(this, std::move(request)); |
| 31 } |
| 32 |
| 33 void TimeZoneMonitor::NotifyClients() { |
25 DCHECK_CURRENTLY_ON(BrowserThread::UI); | 34 DCHECK_CURRENTLY_ON(BrowserThread::UI); |
26 #if defined(OS_CHROMEOS) | 35 #if defined(OS_CHROMEOS) |
27 // On CrOS, ICU's default tz is already set to a new zone. No | 36 // On CrOS, ICU's default tz is already set to a new zone. No |
28 // need to redetect it with detectHostTimeZone(). | 37 // need to redetect it with detectHostTimeZone(). |
29 std::unique_ptr<icu::TimeZone> new_zone(icu::TimeZone::createDefault()); | 38 std::unique_ptr<icu::TimeZone> new_zone(icu::TimeZone::createDefault()); |
30 #else | 39 #else |
31 icu::TimeZone* new_zone = icu::TimeZone::detectHostTimeZone(); | 40 icu::TimeZone* new_zone = icu::TimeZone::detectHostTimeZone(); |
32 #if defined(OS_LINUX) | 41 #if defined(OS_LINUX) |
33 // We get here multiple times on Linux per a single tz change, but | 42 // We get here multiple times on Linux per a single tz change, but |
34 // want to update the ICU default zone and notify renderer only once. | 43 // want to update the ICU default zone and notify renderer only once. |
35 std::unique_ptr<icu::TimeZone> current_zone(icu::TimeZone::createDefault()); | 44 std::unique_ptr<icu::TimeZone> current_zone(icu::TimeZone::createDefault()); |
36 if (*current_zone == *new_zone) { | 45 if (*current_zone == *new_zone) { |
37 VLOG(1) << "timezone already updated"; | 46 VLOG(1) << "timezone already updated"; |
38 delete new_zone; | 47 delete new_zone; |
39 return; | 48 return; |
40 } | 49 } |
41 #endif | 50 #endif |
42 icu::TimeZone::adoptDefault(new_zone); | 51 icu::TimeZone::adoptDefault(new_zone); |
43 #endif | 52 #endif |
44 icu::UnicodeString zone_id; | 53 icu::UnicodeString zone_id; |
45 std::string zone_id_str; | 54 std::string zone_id_str; |
46 new_zone->getID(zone_id).toUTF8String(zone_id_str); | 55 new_zone->getID(zone_id).toUTF8String(zone_id_str); |
47 VLOG(1) << "timezone reset to " << zone_id_str; | 56 VLOG(1) << "timezone reset to " << zone_id_str; |
48 for (RenderProcessHost::iterator iterator = | 57 |
49 RenderProcessHost::AllHostsIterator(); | 58 std::vector<device::mojom::TimeZoneMonitor::QueryNextTimeZoneChangeCallback> |
50 !iterator.IsAtEnd(); | 59 tasks; |
51 iterator.Advance()) { | 60 on_time_zone_change_tasks_.swap(tasks); |
52 iterator.GetCurrentValue()->NotifyTimezoneChange(zone_id_str); | 61 for (auto& task : tasks) |
53 } | 62 task.Run(zone_id_str); |
| 63 } |
| 64 |
| 65 void TimeZoneMonitor::QueryNextTimeZoneChange( |
| 66 const device::mojom::TimeZoneMonitor::QueryNextTimeZoneChangeCallback& |
| 67 callback) { |
| 68 on_time_zone_change_tasks_.push_back(callback); |
54 } | 69 } |
55 | 70 |
56 } // namespace content | 71 } // namespace content |
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