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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 <windows.h> | |
8 | |
9 #include <memory> | |
10 | |
11 #include "base/bind.h" | |
12 #include "base/bind_helpers.h" | |
13 #include "base/macros.h" | |
14 #include "ui/gfx/win/singleton_hwnd_observer.h" | |
15 | |
16 namespace device { | |
17 | |
18 class TimeZoneMonitorWin : public TimeZoneMonitor { | |
19 public: | |
20 TimeZoneMonitorWin() | |
21 : TimeZoneMonitor(), | |
22 singleton_hwnd_observer_(new gfx::SingletonHwndObserver( | |
23 base::Bind(&TimeZoneMonitorWin::OnWndProc, | |
24 base::Unretained(this)))) {} | |
25 | |
26 ~TimeZoneMonitorWin() override {} | |
27 | |
28 private: | |
29 void OnWndProc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam) { | |
30 if (message != WM_TIMECHANGE) { | |
31 return; | |
32 } | |
33 | |
34 NotifyClients(); | |
35 } | |
36 | |
37 std::unique_ptr<gfx::SingletonHwndObserver> singleton_hwnd_observer_; | |
38 | |
39 DISALLOW_COPY_AND_ASSIGN(TimeZoneMonitorWin); | |
40 }; | |
41 | |
42 // static | |
43 std::unique_ptr<TimeZoneMonitor> TimeZoneMonitor::Create( | |
44 scoped_refptr<base::SequencedTaskRunner> file_task_runner) { | |
45 return std::unique_ptr<TimeZoneMonitor>(new TimeZoneMonitorWin()); | |
46 } | |
47 | |
48 } // namespace device | |
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