root/branches/gajim_0.9/src/common/idle.c

/*      common/idle.c
 *
 * Gajim Team:
 *      - Yann Le Boulanger <asterix@lagaule.org>
 *
 * Copyright (C) 2003-2004 Yann Le Boulanger <asterix@lagaule.org>
 *                         Vincent Hanquez <tab@snarc.org>
 * Copyright (C) 2005 Yann Le Boulanger <asterix@lagaule.org>
 *                    Vincent Hanquez <tab@snarc.org>
 *                    Nikos Kouremenos <nkour@jabber.org>
 *                    Dimitur Kirov <dkirov@gmail.com>
 *                    Travis Shirk <travis@pobox.com>
 *                    Norman Rasmussen <norman@rasmussen.co.za>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation; version 2 only.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
*/

#ifndef _WIN32
        #include <X11/Xlib.h>
        #include <X11/Xutil.h>
        #include <X11/extensions/scrnsaver.h>
#else
        #define _WIN32_WINNT 0x0500
        #include <windows.h>
        #define EXPORT __declspec(dllexport)
#endif

#include <Python.h>

#ifdef _WIN32
        typedef BOOL (WINAPI *GETLASTINPUTINFO)(LASTINPUTINFO *);
        static HMODULE g_user32 = NULL;
        static GETLASTINPUTINFO g_GetLastInputInfo = NULL;
#else
        Display *display;
#endif


static PyObject * idle_init(PyObject *self, PyObject *args)
{
#ifndef _WIN32
        display = XOpenDisplay(NULL);
#else
        g_user32 = LoadLibrary("user32.dll");
        if (g_user32) {
                g_GetLastInputInfo = (GETLASTINPUTINFO)GetProcAddress(g_user32, "GetLastInputInfo");
        }
#endif
        Py_INCREF(Py_None);
        return Py_None;
}

static PyObject * idle_getIdleSec(PyObject *self, PyObject *args)
{
#ifndef _WIN32
        static XScreenSaverInfo *mit_info = NULL;
        int idle_time, event_base, error_base;
#else
        int idle_time = 0;
#endif

#ifndef _WIN32
        if (XScreenSaverQueryExtension(display, &event_base, &error_base))
        {
                if (mit_info == NULL)
                        mit_info = XScreenSaverAllocInfo();
                XScreenSaverQueryInfo(display, RootWindow(display, 0), mit_info);
                idle_time = (mit_info->idle) / 1000;
        }
        else
                idle_time = 0;
#else
        if (g_GetLastInputInfo != NULL) {
                LASTINPUTINFO lii;
                memset(&lii, 0, sizeof(lii));
                lii.cbSize = sizeof(lii);
                if (g_GetLastInputInfo(&lii)) {
                        idle_time = lii.dwTime;
                }
                idle_time = (GetTickCount() - idle_time) / 1000;
        }                                                                       
#endif
        return Py_BuildValue("i", idle_time);
}

static PyObject * idle_close(PyObject *self, PyObject *args)
{
#ifndef _WIN32
        XCloseDisplay(display);
#else
        if (g_user32 != NULL)
                FreeLibrary(g_user32);
#endif
        Py_INCREF(Py_None);
        return Py_None;
}

static PyMethodDef idleMethods[] =
{
        {"init",  idle_init, METH_VARARGS, "init idle"},
        {"getIdleSec",  idle_getIdleSec, METH_VARARGS, "Give the idle time in secondes"},
        {"close",  idle_close, METH_VARARGS, "close idle"},
        {NULL, NULL, 0, NULL}
};

PyMODINIT_FUNC
initidle(void)
{
            (void) Py_InitModule("idle", idleMethods);
}