| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "services/device/time_zone_monitor/time_zone_monitor.h" |
| |
| #include <windows.h> |
| |
| #include <memory> |
| |
| #include "base/bind.h" |
| #include "base/bind_helpers.h" |
| #include "base/macros.h" |
| #include "ui/gfx/win/singleton_hwnd_observer.h" |
| |
| namespace device { |
| |
| class TimeZoneMonitorWin : public TimeZoneMonitor { |
| public: |
| TimeZoneMonitorWin() |
| : TimeZoneMonitor(), |
| singleton_hwnd_observer_(new gfx::SingletonHwndObserver( |
| base::Bind(&TimeZoneMonitorWin::OnWndProc, |
| base::Unretained(this)))) {} |
| |
| ~TimeZoneMonitorWin() override {} |
| |
| private: |
| void OnWndProc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam) { |
| if (message != WM_TIMECHANGE) { |
| return; |
| } |
| |
| NotifyClients(); |
| } |
| |
| std::unique_ptr<gfx::SingletonHwndObserver> singleton_hwnd_observer_; |
| |
| DISALLOW_COPY_AND_ASSIGN(TimeZoneMonitorWin); |
| }; |
| |
| // static |
| std::unique_ptr<TimeZoneMonitor> TimeZoneMonitor::Create( |
| scoped_refptr<base::SequencedTaskRunner> file_task_runner) { |
| return std::unique_ptr<TimeZoneMonitor>(new TimeZoneMonitorWin()); |
| } |
| |
| } // namespace device |