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// 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/bind.h"
#include "base/bind_helpers.h"
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "ui/gfx/win/singleton_hwnd_observer.h"
namespace content {
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;
}
NotifyRenderers();
}
scoped_ptr<gfx::SingletonHwndObserver> singleton_hwnd_observer_;
DISALLOW_COPY_AND_ASSIGN(TimeZoneMonitorWin);
};
// static
scoped_ptr<TimeZoneMonitor> TimeZoneMonitor::Create() {
return scoped_ptr<TimeZoneMonitor>(new TimeZoneMonitorWin());
}
} // namespace content
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