widget/windows/nsIdleServiceWin.cpp

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /* vim:expandtab:shiftwidth=4:tabstop=4:
   3  */
   4 /* This Source Code Form is subject to the terms of the Mozilla Public
   5  * License, v. 2.0. If a copy of the MPL was not distributed with this
   6  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   7
   8 #include "nsIdleServiceWin.h"
   9 #include <windows.h>
  10
  11 NS_IMPL_ISUPPORTS_INHERITED0(nsIdleServiceWin, nsIdleService)
  12
  13 bool
  14 nsIdleServiceWin::PollIdleTime(uint32_t *aIdleTime)
  15 {
  16     LASTINPUTINFO inputInfo;
  17     inputInfo.cbSize = sizeof(inputInfo);
  18     if (!::GetLastInputInfo(&inputInfo))
  19         return false;
  20
  21     *aIdleTime = SAFE_COMPARE_EVEN_WITH_WRAPPING(GetTickCount(), inputInfo.dwTime);
  22
  23     return true;
  24 }
  25
  26 bool
  27 nsIdleServiceWin::UsePollMode()
  28 {
  29     return true;
  30 }