diplodocus.org Git - xorg-xinput/blob - src/xinput.c

   1 /*
   2  * Copyright 1996 by Frederic Lepied, France. <Frederic.Lepied@sugix.frmug.org>
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software and its
   5  * documentation for any purpose is  hereby granted without fee, provided that
   6  * the  above copyright   notice appear  in   all  copies and  that both  that
   7  * copyright  notice   and   this  permission   notice  appear  in  supporting
   8  * documentation, and that   the  name of  the authors  not  be  used  in
   9  * advertising or publicity pertaining to distribution of the software without
  10  * specific,  written      prior  permission.     The authors  make  no
  11  * representations about the suitability of this software for any purpose.  It
  12  * is provided "as is" without express or implied warranty.
  13  *
  14  * THE AUTHORS DISCLAIM ALL   WARRANTIES WITH REGARD  TO  THIS SOFTWARE,
  15  * INCLUDING ALL IMPLIED   WARRANTIES OF MERCHANTABILITY  AND   FITNESS, IN NO
  16  * EVENT  SHALL THE AUTHORS  BE   LIABLE   FOR ANY  SPECIAL, INDIRECT   OR
  17  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  18  * DATA  OR PROFITS, WHETHER  IN  AN ACTION OF  CONTRACT,  NEGLIGENCE OR OTHER
  19  * TORTIOUS  ACTION, ARISING    OUT OF OR   IN  CONNECTION  WITH THE USE    OR
  20  * PERFORMANCE OF THIS SOFTWARE.
  21  *
  22  */
  23
  24 #include "xinput.h"
  25 #include <ctype.h>
  26 #include <string.h>
  27
  28 int xi_opcode;
  29
  30 typedef int (*prog)(Display* display, int argc, char *argv[],
  31                     char *prog_name, char *prog_desc);
  32
  33 typedef struct
  34 {
  35     char        *func_name;
  36     char        *arg_desc;
  37     prog        func;
  38 } entry;
  39
  40 static entry drivers[] =
  41 {
  42     {"get-feedbacks",
  43      "<device name>",
  44      get_feedbacks
  45     },
  46     {"set-ptr-feedback",
  47      "<device name> <threshold> <num> <denom>",
  48      set_ptr_feedback
  49     },
  50     {"set-integer-feedback",
  51      "<device name> <feedback id> <value>",
  52      set_integer_feedback
  53     },
  54     {"get-button-map",
  55      "<device name>",
  56      get_button_map
  57     },
  58     {"set-button-map",
  59      "<device name> <map button 1> [<map button 2> [...]]",
  60      set_button_map
  61     },
  62     {"set-pointer",
  63      "<device name> [<x index> <y index>]",
  64      set_pointer
  65     },
  66     {"set-mode",
  67      "<device name> ABSOLUTE|RELATIVE",
  68      set_mode
  69     },
  70     {"list",
  71      "[--short || --long || --name-only || --id-only] [<device name>...]",
  72      list
  73     },
  74     {"query-state",
  75      "<device name>",
  76      query_state
  77     },
  78     {"test",
  79      "[-proximity] <device name>",
  80      test
  81     },
  82 #if HAVE_XI2
  83     { "create-master",
  84       "<id> [<sendCore (dflt:1)>] [<enable (dflt:1)>]",
  85       create_master
  86     },
  87     { "remove-master",
  88       "<id> [Floating|AttachToMaster (dflt:Floating)] [<returnPointer>] [<returnKeyboard>]",
  89       remove_master
  90     },
  91     { "reattach",
  92       "<id> <master>",
  93       change_attachment
  94     },
  95     { "float",
  96       "<id>",
  97       float_device
  98     },
  99     { "set-cp",
 100       "<window> <device>",
 101       set_clientpointer
 102     },
 103     { "test-xi2",
 104       "[--root] <device>",
 105       test_xi2,
 106     },
 107     { "map-to-output",
 108       "<device> <output name>|all",
 109       map_to_output,
 110     },
 111 #endif
 112     { "list-props",
 113       "<device> [<device> ...]",
 114       list_props
 115     },
 116     { "set-int-prop",
 117       "<device> <property> <format (8, 16, 32)> <val> [<val> ...]",
 118       set_int_prop
 119     },
 120     { "set-float-prop",
 121       "<device> <property> <val> [<val> ...]",
 122       set_float_prop
 123     },
 124     { "set-atom-prop",
 125       "<device> <property> <val> [<val> ...]",
 126       set_atom_prop
 127     },
 128     { "watch-props",
 129       "<device>",
 130       watch_props
 131     },
 132     { "delete-prop",
 133       "<device> <property>",
 134       delete_prop
 135     },
 136     { "set-prop",
 137       "<device> [--type=atom|float|int] [--format=8|16|32] <property> <val> [<val> ...]",
 138       set_prop
 139     },
 140     {
 141       "disable",
 142       "<device>",
 143       disable,
 144     },
 145     {
 146       "enable",
 147       "<device>",
 148       enable,
 149     },
 150     {NULL, NULL, NULL
 151     }
 152 };
 153
 154 static const char version_id[] = VERSION;
 155
 156 static int
 157 print_version(void)
 158 {
 159     XExtensionVersion   *version;
 160     Display *display;
 161
 162     printf("xinput version %s\n", version_id);
 163
 164     display = XOpenDisplay(NULL);
 165
 166     printf("XI version on server: ");
 167
 168     if (display == NULL)
 169         printf("Failed to open display.\n");
 170     else {
 171         version = XGetExtensionVersion(display, INAME);
 172         if (!version || (version == (XExtensionVersion*) NoSuchExtension))
 173             printf(" Extension not supported.\n");
 174         else {
 175             printf("%d.%d\n", version->major_version,
 176                     version->minor_version);
 177             XFree(version);
 178             return 0;
 179         }
 180     }
 181
 182     return 1;
 183 }
 184
 185 int
 186 xinput_version(Display  *display)
 187 {
 188     XExtensionVersion   *version;
 189     static int vers = -1;
 190
 191     if (vers != -1)
 192         return vers;
 193
 194     version = XGetExtensionVersion(display, INAME);
 195
 196     if (version && (version != (XExtensionVersion*) NoSuchExtension)) {
 197         vers = version->major_version;
 198         XFree(version);
 199     }
 200
 201 #if HAVE_XI2
 202     /* Announce our supported version so the server treats us correctly. */
 203     if (vers >= XI_2_Major)
 204     {
 205         const char *forced_version;
 206         int maj = 2,
 207             min = 0;
 208
 209 #if HAVE_XI22
 210         min = 2;
 211 #elif HAVE_XI21
 212         min = 1;
 213 #endif
 214
 215         forced_version = getenv("XINPUT_XI2_VERSION");
 216         if (forced_version) {
 217             if (sscanf(forced_version, "%d.%d", &maj, &min) != 2) {
 218                 fprintf(stderr, "Invalid format of XINPUT_XI2_VERSION "
 219                                 "environment variable. Need major.minor\n");
 220                 exit(1);
 221             }
 222             printf("Overriding XI2 version to: %d.%d\n", maj, min);
 223         }
 224
 225         XIQueryVersion(display, &maj, &min);
 226     }
 227 #endif
 228
 229     return vers;
 230 }
 231
 232 XDeviceInfo*
 233 find_device_info(Display        *display,
 234                  char           *name,
 235                  Bool           only_extended)
 236 {
 237     XDeviceInfo *devices;
 238     XDeviceInfo *found = NULL;
 239     int         loop;
 240     int         num_devices;
 241     int         len = strlen(name);
 242     Bool        is_id = True;
 243     XID         id = (XID)-1;
 244
 245     for(loop=0; loop<len; loop++) {
 246         if (!isdigit(name[loop])) {
 247             is_id = False;
 248             break;
 249         }
 250     }
 251
 252     if (is_id) {
 253         id = atoi(name);
 254     }
 255
 256     devices = XListInputDevices(display, &num_devices);
 257
 258     for(loop=0; loop<num_devices; loop++) {
 259         if ((!only_extended || (devices[loop].use >= IsXExtensionDevice)) &&
 260             ((!is_id && strcmp(devices[loop].name, name) == 0) ||
 261              (is_id && devices[loop].id == id))) {
 262             if (found) {
 263                 fprintf(stderr,
 264                         "Warning: There are multiple devices named '%s'.\n"
 265                         "To ensure the correct one is selected, please use "
 266                         "the device ID instead.\n\n", name);
 267                 return NULL;
 268             } else {
 269                 found = &devices[loop];
 270             }
 271         }
 272     }
 273     return found;
 274 }
 275
 276 #if HAVE_XI2
 277 Bool is_pointer(int use)
 278 {
 279     return use == XIMasterPointer || use == XISlavePointer;
 280 }
 281
 282 Bool is_keyboard(int use)
 283 {
 284     return use == XIMasterKeyboard || use == XISlaveKeyboard;
 285 }
 286
 287 Bool device_matches(XIDeviceInfo *info, char *name)
 288 {
 289     if (strcmp(info->name, name) == 0) {
 290         return True;
 291     }
 292
 293     if (strncmp(name, "pointer:", strlen("pointer:")) == 0 &&
 294         strcmp(info->name, name + strlen("pointer:")) == 0 &&
 295         is_pointer(info->use)) {
 296         return True;
 297     }
 298
 299     if (strncmp(name, "keyboard:", strlen("keyboard:")) == 0 &&
 300         strcmp(info->name, name + strlen("keyboard:")) == 0 &&
 301         is_keyboard(info->use)) {
 302         return True;
 303     }
 304
 305     return False;
 306 }
 307
 308 XIDeviceInfo*
 309 xi2_find_device_info(Display *display, char *name)
 310 {
 311     XIDeviceInfo *info;
 312     XIDeviceInfo *found = NULL;
 313     int ndevices;
 314     Bool is_id = True;
 315     int i, id = -1;
 316
 317     for(i = 0; i < strlen(name); i++) {
 318         if (!isdigit(name[i])) {
 319             is_id = False;
 320             break;
 321         }
 322     }
 323
 324     if (is_id) {
 325         id = atoi(name);
 326     }
 327
 328     info = XIQueryDevice(display, XIAllDevices, &ndevices);
 329     for(i = 0; i < ndevices; i++)
 330     {
 331         if (is_id ? info[i].deviceid == id : device_matches (&info[i], name)) {
 332             if (found) {
 333                 fprintf(stderr,
 334                         "Warning: There are multiple devices matching '%s'.\n"
 335                         "To ensure the correct one is selected, please use "
 336                         "the device ID, or prefix the\ndevice name with "
 337                         "'pointer:' or 'keyboard:' as appropriate.\n\n", name);
 338                 XIFreeDeviceInfo(info);
 339                 return NULL;
 340             } else {
 341                 found = &info[i];
 342             }
 343         }
 344     }
 345
 346     return found;
 347 }
 348 #endif
 349
 350 static void
 351 usage(void)
 352 {
 353     entry       *pdriver = drivers;
 354
 355     fprintf(stderr, "usage :\n");
 356
 357     while(pdriver->func_name) {
 358         fprintf(stderr, "\txinput %s %s\n", pdriver->func_name,
 359                 pdriver->arg_desc);
 360         pdriver++;
 361     }
 362 }
 363
 364 static Bool
 365 is_xwayland(Display *dpy)
 366 {
 367     XDeviceInfo *devices;
 368     int n;
 369     Bool is_xwayland = False;
 370
 371     devices = XListInputDevices(dpy, &n);
 372     while (n-- > 0) {
 373         if (strncmp(devices[n].name, "xwayland-", 9) == 0) {
 374             is_xwayland = True;
 375             break;
 376         }
 377     }
 378
 379     XFreeDeviceList(devices);
 380
 381     return is_xwayland;
 382 }
 383
 384 int
 385 main(int argc, char * argv[])
 386 {
 387     Display     *display;
 388     entry       *driver = drivers;
 389     char        *func;
 390     int event, error;
 391
 392     if (argc > 1) {
 393         func = argv[1];
 394         while(func[0] == '-') func++;
 395     } else {
 396         func = "list";
 397     }
 398
 399     if (strcmp("version", func) == 0) {
 400         return print_version();
 401     }
 402
 403     if (strcmp("help", func) == 0) {
 404         usage();
 405         return 0;
 406     }
 407
 408     display = XOpenDisplay(NULL);
 409
 410     if (display == NULL) {
 411         fprintf(stderr, "Unable to connect to X server\n");
 412         goto out;
 413     }
 414
 415     if (!XQueryExtension(display, "XInputExtension", &xi_opcode, &event, &error)) {
 416         printf("X Input extension not available.\n");
 417         goto out;
 418     }
 419
 420     if (!xinput_version(display)) {
 421         fprintf(stderr, "%s extension not available\n", INAME);
 422         goto out;
 423     }
 424
 425     if (is_xwayland(display))
 426         fprintf(stderr, "WARNING: running xinput against an Xwayland server. See the xinput man page for details.\n");
 427
 428     while(driver->func_name) {
 429         if (strcmp(driver->func_name, func) == 0) {
 430             int r = (*driver->func)(display, argc-2, argv+2,
 431                                     driver->func_name, driver->arg_desc);
 432             XSync(display, False);
 433             XCloseDisplay(display);
 434             return r;
 435         }
 436         driver++;
 437     }
 438
 439     usage();
 440
 441 out:
 442     if (display)
 443         XCloseDisplay(display);
 444     return EXIT_FAILURE;
 445 }
 446
 447 /* end of xinput.c */