src/lib/ecore_x/xlib/ecore_x_xi2.c

   1 /*
   2  * vim:ts=8:sw=3:sts=8:noexpandtab:cino=>5n-3f0^-2{2
   3  */
   4
   5 #ifdef HAVE_CONFIG_H
   6 # include <config.h>
   7 #endif
   8
   9 #include <string.h>
  10
  11 #include "Ecore.h"
  12 #include "ecore_x_private.h"
  13 #include "Ecore_X.h"
  14
  15 #ifdef ECORE_XI2
  16 int _ecore_x_xi2_opcode = -1;
  17 #endif
  18
  19 EAPI Eina_Bool
  20 ecore_x_input_multi_select(Ecore_X_Window win)
  21 {
  22 #ifdef ECORE_XI2
  23    int find = 0;
  24    static int num;
  25    static XIDeviceInfo *devs = NULL;
  26    static int checked = 0;
  27    static int check_ret = 1;
  28
  29    if (!checked)
  30      {
  31         int event, error;
  32         int major = 2, minor = 0;
  33
  34         checked = 1;
  35         if (!XQueryExtension(_ecore_x_disp, "XInputExtension",
  36                              &_ecore_x_xi2_opcode, &event, &error))
  37           {
  38              _ecore_x_xi2_opcode = -1;
  39              check_ret = 0;
  40              return 0;
  41           }
  42
  43         if (XIQueryVersion(_ecore_x_disp, &major, &minor) == BadRequest)
  44           {
  45              _ecore_x_xi2_opcode = -1;
  46              check_ret = 0;
  47              return 0;
  48           }
  49         devs = XIQueryDevice(_ecore_x_disp, XIAllDevices, &num);
  50 //        XIFreeDeviceInfo(devs);
  51      }
  52    else
  53      {
  54         if (!check_ret) return 0;
  55      }
  56
  57    if (devs)
  58      {
  59         int i;
  60
  61         for (i = 0; i < num; i++)
  62           {
  63              XIDeviceInfo *dev = &(devs[i]);
  64
  65              if (dev->use == XIFloatingSlave)
  66                {
  67                   XIEventMask eventmask;
  68                   unsigned char mask[1] = { 0 };
  69
  70                   eventmask.deviceid = dev->deviceid;
  71                   eventmask.mask_len = sizeof(mask);
  72                   eventmask.mask = mask;
  73                   XISetMask(mask, XI_ButtonPress);
  74                   XISetMask(mask, XI_ButtonRelease);
  75                   XISetMask(mask, XI_Motion);
  76                   XISelectEvents(_ecore_x_disp, win, &eventmask, 1);
  77                   find = 1;
  78                }
  79           }
  80      }
  81
  82    return find;
  83 #else
  84    return 0;
  85 #endif
  86 }