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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include "chrome/browser/idle_query_x11.h"
6 
7 #include <X11/extensions/scrnsaver.h>
8 #include "ui/gfx/x/x11_types.h"
9 
10 namespace chrome {
11 
12 class IdleData {
13  public:
IdleData()14   IdleData() {
15     int event_base;
16     int error_base;
17     if (XScreenSaverQueryExtension(gfx::GetXDisplay(), &event_base,
18                                    &error_base)) {
19       mit_info = XScreenSaverAllocInfo();
20     } else {
21       mit_info = NULL;
22     }
23   }
24 
~IdleData()25   ~IdleData() {
26     if (mit_info)
27       XFree(mit_info);
28   }
29 
30   XScreenSaverInfo *mit_info;
31 };
32 
IdleQueryX11()33 IdleQueryX11::IdleQueryX11() : idle_data_(new IdleData()) {}
34 
~IdleQueryX11()35 IdleQueryX11::~IdleQueryX11() {}
36 
IdleTime()37 int IdleQueryX11::IdleTime() {
38   if (!idle_data_->mit_info)
39     return 0;
40 
41   if (XScreenSaverQueryInfo(gfx::GetXDisplay(),
42                             RootWindow(gfx::GetXDisplay(), 0),
43                             idle_data_->mit_info)) {
44     return (idle_data_->mit_info->idle) / 1000;
45   } else {
46     return 0;
47   }
48 }
49 
50 }  // namespace chrome
51