1 files changed, 20 insertions, 0 deletions
diff --git a/widget/windows/nsUserIdleServiceWin.cpp b/widget/windows/nsUserIdleServiceWin.cpp
new file mode 100644
index 0000000000..7cf957dffd
--- /dev/null
+++ b/widget/windows/nsUserIdleServiceWin.cpp
@@ -0,0 +1,20 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:expandtab:shiftwidth=4:tabstop=4:
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsUserIdleServiceWin.h"
+#include <windows.h>
+
+bool nsUserIdleServiceWin::PollIdleTime(uint32_t* aIdleTime) {
+  LASTINPUTINFO inputInfo;
+  inputInfo.cbSize = sizeof(inputInfo);
+  if (!::GetLastInputInfo(&inputInfo)) return false;
+
+  *aIdleTime =
+      SAFE_COMPARE_EVEN_WITH_WRAPPING(GetTickCount(), inputInfo.dwTime);
+
+  return true;
+}