| // 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 "content/browser/time_zone_monitor.h" |
| |
| #include <windows.h> |
| |
| #include "base/basictypes.h" |
| #include "ui/gfx/win/singleton_hwnd.h" |
| |
| namespace content { |
| |
| class TimeZoneMonitorWin : public TimeZoneMonitor, |
| public gfx::SingletonHwnd::Observer { |
| public: |
| TimeZoneMonitorWin() : TimeZoneMonitor() { |
| gfx::SingletonHwnd::GetInstance()->AddObserver(this); |
| } |
| |
| virtual ~TimeZoneMonitorWin() { |
| gfx::SingletonHwnd::GetInstance()->RemoveObserver(this); |
| } |
| |
| // gfx::SingletonHwnd::Observer implementation. |
| virtual void OnWndProc(HWND hwnd, |
| UINT message, |
| WPARAM wparam, |
| LPARAM lparam) OVERRIDE { |
| if (message != WM_TIMECHANGE) { |
| return; |
| } |
| |
| NotifyRenderers(); |
| } |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(TimeZoneMonitorWin); |
| }; |
| |
| // static |
| scoped_ptr<TimeZoneMonitor> TimeZoneMonitor::Create() { |
| return scoped_ptr<TimeZoneMonitor>(new TimeZoneMonitorWin()); |
| } |
| |
| } // namespace content |