src/messages.c

   1 /* Copyright (c) 2012, Bastien Dejean
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are met:
   6  *
   7  * 1. Redistributions of source code must retain the above copyright notice, this
   8  *    list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright notice,
  10  *    this list of conditions and the following disclaimer in the documentation
  11  *    and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  16  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
  17  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  18  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  19  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  20  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  22  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  23  */
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <stdbool.h>
  29 #include <stdarg.h>
  30 #include <inttypes.h>
  31 #include <unistd.h>
  32 #include "bspwm.h"
  33 #include "desktop.h"
  34 #include "monitor.h"
  35 #include "pointer.h"
  36 #include "query.h"
  37 #include "rule.h"
  38 #include "restore.h"
  39 #include "settings.h"
  40 #include "tree.h"
  41 #include "window.h"
  42 #include "common.h"
  43 #include "parse.h"
  44 #include "messages.h"
  45
  46 void handle_message(char *msg, int msg_len, FILE *rsp)
  47 {
  48         int cap = INIT_CAP;
  49         int num = 0;
  50         char **args = calloc(cap, sizeof(char *));
  51
  52         if (args == NULL) {
  53                 perror("Handle message: calloc");
  54                 return;
  55         }
  56
  57         for (int i = 0, j = 0; i < msg_len; i++) {
  58                 if (msg[i] == 0) {
  59                         args[num++] = msg + j;
  60                         j = i + 1;
  61                 }
  62                 if (num >= cap) {
  63                         cap *= 2;
  64                         char **new = realloc(args, cap * sizeof(char *));
  65                         if (new == NULL) {
  66                                 free(args);
  67                                 perror("Handle message: realloc");
  68                                 return;
  69                         } else {
  70                                 args = new;
  71                         }
  72                 }
  73         }
  74
  75         if (num < 1) {
  76                 free(args);
  77                 fail(rsp, "No arguments given.\n");
  78                 return;
  79         }
  80
  81         char **args_orig = args;
  82         process_message(args, num, rsp);
  83         free(args_orig);
  84 }
  85
  86 void process_message(char **args, int num, FILE *rsp)
  87 {
  88         if (streq("node", *args)) {
  89                 cmd_node(++args, --num, rsp);
  90         } else if (streq("desktop", *args)) {
  91                 cmd_desktop(++args, --num, rsp);
  92         } else if (streq("monitor", *args)) {
  93                 cmd_monitor(++args, --num, rsp);
  94         } else if (streq("query", *args)) {
  95                 cmd_query(++args, --num, rsp);
  96         } else if (streq("subscribe", *args)) {
  97                 cmd_subscribe(++args, --num, rsp);
  98                 return;
  99         } else if (streq("wm", *args)) {
 100                 cmd_wm(++args, --num, rsp);
 101         } else if (streq("rule", *args)) {
 102                 cmd_rule(++args, --num, rsp);
 103         } else if (streq("config", *args)) {
 104                 cmd_config(++args, --num, rsp);
 105         } else if (streq("quit", *args)) {
 106                 cmd_quit(++args, --num, rsp);
 107         } else {
 108                 fail(rsp, "Unknown domain or command: '%s'.\n", *args);
 109         }
 110
 111         fflush(rsp);
 112         fclose(rsp);
 113 }
 114
 115 void cmd_node(char **args, int num, FILE *rsp)
 116 {
 117         if (num < 1) {
 118                 fail(rsp, "node: Missing arguments.\n");
 119                 return;
 120         }
 121
 122         coordinates_t ref = {mon, mon->desk, mon->desk->focus};
 123         coordinates_t trg = ref;
 124
 125         if ((*args)[0] != OPT_CHR) {
 126                 int ret;
 127                 if ((ret = node_from_desc(*args, &ref, &trg)) == SELECTOR_OK) {
 128                         num--, args++;
 129                 } else {
 130                         handle_failure(ret, "node", *args, rsp);
 131                         return;
 132                 }
 133         }
 134
 135         if (num < 1) {
 136                 fail(rsp, "node: Missing commands.\n");
 137                 return;
 138         }
 139
 140         bool changed = false;
 141
 142         while (num > 0) {
 143                 if (streq("-f", *args) || streq("--focus", *args)) {
 144                         coordinates_t dst = trg;
 145                         if (num > 1 && *(args + 1)[0] != OPT_CHR) {
 146                                 num--, args++;
 147                                 int ret;
 148                                 if ((ret = node_from_desc(*args, &ref, &dst)) != SELECTOR_OK) {
 149                                         handle_failure(ret, "node -f", *args, rsp);
 150                                         break;
 151                                 }
 152                         }
 153                         if (dst.node == NULL || !focus_node(dst.monitor, dst.desktop, dst.node)) {
 154                                 fail(rsp, "");
 155                                 break;
 156                         }
 157                 } else if (streq("-a", *args) || streq("--activate", *args)) {
 158                         coordinates_t dst = trg;
 159                         if (num > 1 && *(args + 1)[0] != OPT_CHR) {
 160                                 num--, args++;
 161                                 int ret;
 162                                 if ((ret = node_from_desc(*args, &ref, &dst)) != SELECTOR_OK) {
 163                                         handle_failure(ret, "node -a", *args, rsp);
 164                                         break;
 165                                 }
 166                         }
 167                         if (dst.node == NULL || !activate_node(dst.monitor, dst.desktop, dst.node)) {
 168                                 fail(rsp, "");
 169                                 break;
 170                         }
 171                 } else if (streq("-d", *args) || streq("--to-desktop", *args)) {
 172                         num--, args++;
 173                         if (num < 1) {
 174                                 fail(rsp, "node %s: Not enough arguments.\n", *(args - 1));
 175                                 break;
 176                         }
 177                         coordinates_t dst;
 178                         int ret;
 179                         if ((ret = desktop_from_desc(*args, &ref, &dst)) == SELECTOR_OK) {
 180                                 bool follow = false;
 181                                 if (num > 1 && streq("--follow", *(args+1))) {
 182                                         follow = true;
 183                                         num--, args++;
 184                                 }
 185                                 if (transfer_node(trg.monitor, trg.desktop, trg.node, dst.monitor, dst.desktop, dst.desktop->focus, follow)) {
 186                                         trg.monitor = dst.monitor;
 187                                         trg.desktop = dst.desktop;
 188                                 } else {
 189                                         fail(rsp, "");
 190                                         break;
 191                                 }
 192                         } else {
 193                                 handle_failure(ret, "node -d", *args, rsp);
 194                                 break;
 195                         }
 196                 } else if (streq("-m", *args) || streq("--to-monitor", *args)) {
 197                         num--, args++;
 198                         if (num < 1) {
 199                                 fail(rsp, "node %s: Not enough arguments.\n", *(args - 1));
 200                                 break;
 201                         }
 202                         coordinates_t dst;
 203                         int ret;
 204                         if ((ret = monitor_from_desc(*args, &ref, &dst)) == SELECTOR_OK) {
 205                                 bool follow = false;
 206                                 if (num > 1 && streq("--follow", *(args+1))) {
 207                                         follow = true;
 208                                         num--, args++;
 209                                 }
 210                                 if (transfer_node(trg.monitor, trg.desktop, trg.node, dst.monitor, dst.monitor->desk, dst.monitor->desk->focus, follow)) {
 211                                         trg.monitor = dst.monitor;
 212                                         trg.desktop = dst.monitor->desk;
 213                                 } else {
 214                                         fail(rsp, "");
 215                                         break;
 216                                 }
 217                         } else {
 218                                 handle_failure(ret, "node -m", *args, rsp);
 219                                 break;
 220                         }
 221                 } else if (streq("-n", *args) || streq("--to-node", *args)) {
 222                         num--, args++;
 223                         if (num < 1) {
 224                                 fail(rsp, "node %s: Not enough arguments.\n", *(args - 1));
 225                                 break;
 226                         }
 227                         coordinates_t dst;
 228                         int ret;
 229                         if ((ret = node_from_desc(*args, &ref, &dst)) == SELECTOR_OK) {
 230                                 bool follow = false;
 231                                 if (num > 1 && streq("--follow", *(args+1))) {
 232                                         follow = true;
 233                                         num--, args++;
 234                                 }
 235                                 if (transfer_node(trg.monitor, trg.desktop, trg.node, dst.monitor, dst.desktop, dst.node, follow)) {
 236                                         trg.monitor = dst.monitor;
 237                                         trg.desktop = dst.desktop;
 238                                 } else {
 239                                         fail(rsp, "");
 240                                         break;
 241                                 }
 242                         } else {
 243                                 handle_failure(ret, "node -n", *args, rsp);
 244                                 break;
 245                         }
 246                 } else if (streq("-s", *args) || streq("--swap", *args)) {
 247                         num--, args++;
 248                         if (num < 1) {
 249                                 fail(rsp, "node %s: Not enough arguments.\n", *(args - 1));
 250                                 break;
 251                         }
 252                         coordinates_t dst;
 253                         int ret;
 254                         if ((ret = node_from_desc(*args, &ref, &dst)) == SELECTOR_OK) {
 255                                 bool follow = false;
 256                                 if (num > 1 && streq("--follow", *(args+1))) {
 257                                         follow = true;
 258                                         num--, args++;
 259                                 }
 260                                 if (swap_nodes(trg.monitor, trg.desktop, trg.node, dst.monitor, dst.desktop, dst.node, follow)) {
 261                                         trg.monitor = dst.monitor;
 262                                         trg.desktop = dst.desktop;
 263                                 } else {
 264                                         fail(rsp, "");
 265                                         break;
 266                                 }
 267                         } else {
 268                                 handle_failure(ret, "node -s", *args, rsp);
 269                                 break;
 270                         }
 271                 } else if (streq("-l", *args) || streq("--layer", *args)) {
 272                         num--, args++;
 273                         if (num < 1) {
 274                                 fail(rsp, "node %s: Not enough arguments.\n", *(args - 1));
 275                                 break;
 276                         }
 277                         stack_layer_t lyr;
 278                         if (parse_stack_layer(*args, &lyr)) {
 279                                 if (!set_layer(trg.monitor, trg.desktop, trg.node, lyr)) {
 280                                         fail(rsp, "");
 281                                         break;
 282                                 }
 283                         } else {
 284                                 fail(rsp, "node %s: Invalid argument: '%s'.\n", *(args - 1), *args);
 285                                 break;
 286                         }
 287                 } else if (streq("-t", *args) || streq("--state", *args)) {
 288                         num--, args++;
 289                         if (num < 1) {
 290                                 fail(rsp, "node %s: Not enough arguments.\n", *(args - 1));
 291                                 break;
 292                         }
 293                         client_state_t cst;
 294                         bool alternate = false;
 295                         if ((*args)[0] == '~') {
 296                                 alternate = true;
 297                                 (*args)++;
 298                         }
 299                         if (alternate && (*args)[0] == '\0') {
 300                                 if (trg.node != NULL && trg.node->client != NULL) {
 301                                         cst = trg.node->client->last_state;
 302                                 } else {
 303                                         fail(rsp, "");
 304                                         break;
 305                                 }
 306                         } else if (parse_client_state(*args, &cst)) {
 307                                 if (alternate && trg.node != NULL && trg.node->client != NULL &&
 308                                     trg.node->client->state == cst) {
 309                                         cst = trg.node->client->last_state;
 310                                 }
 311                         } else {
 312                                 fail(rsp, "node %s: Invalid argument: '%s'.\n", *(args - 1), *args);
 313                                 break;
 314                         }
 315                         if (!set_state(trg.monitor, trg.desktop, trg.node, cst)) {
 316                                 fail(rsp, "");
 317                                 break;
 318                         }
 319                         changed = true;
 320                 } else if (streq("-g", *args) || streq("--flag", *args)) {
 321                         num--, args++;
 322                         if (num < 1) {
 323                                 fail(rsp, "node %s: Not enough arguments.\n", *(args - 1));
 324                                 break;
 325                         }
 326                         if (trg.node == NULL) {
 327                                 fail(rsp, "");
 328                                 break;
 329                         }
 330                         char *key = strtok(*args, EQL_TOK);
 331                         char *val = strtok(NULL, EQL_TOK);
 332                         alter_state_t a;
 333                         bool b;
 334                         if (val == NULL) {
 335                                 a = ALTER_TOGGLE;
 336                         } else {
 337                                 if (parse_bool(val, &b)) {
 338                                         a = ALTER_SET;
 339                                 } else {
 340                                         fail(rsp, "node %s: Invalid value for %s: '%s'.\n", *(args - 1), key, val);
 341                                         break;
 342                                 }
 343                         }
 344                         if (streq("hidden", key)) {
 345                                 set_hidden(trg.monitor, trg.desktop, trg.node, (a == ALTER_SET ? b : !trg.node->hidden));
 346                                 changed = true;
 347                         } else if (streq("sticky", key)) {
 348                                 set_sticky(trg.monitor, trg.desktop, trg.node, (a == ALTER_SET ? b : !trg.node->sticky));
 349                         } else if (streq("private", key)) {
 350                                 set_private(trg.monitor, trg.desktop, trg.node, (a == ALTER_SET ? b : !trg.node->private));
 351                         } else if (streq("locked", key)) {
 352                                 set_locked(trg.monitor, trg.desktop, trg.node, (a == ALTER_SET ? b : !trg.node->locked));
 353                         } else if (streq("marked", key)) {
 354                                 set_marked(trg.monitor, trg.desktop, trg.node, (a == ALTER_SET ? b : !trg.node->marked));
 355                         } else {
 356                                 fail(rsp, "node %s: Invalid key: '%s'.\n", *(args - 1), key);
 357                                 break;
 358                         }
 359                 } else if (streq("-p", *args) || streq("--presel-dir", *args)) {
 360                         num--, args++;
 361                         if (num < 1) {
 362                                 fail(rsp, "node %s: Not enough arguments.\n", *(args - 1));
 363                                 break;
 364                         }
 365                         if (trg.node == NULL || trg.node->vacant) {
 366                                 fail(rsp, "");
 367                                 break;
 368                         }
 369                         if (streq("cancel", *args)) {
 370                                 cancel_presel(trg.monitor, trg.desktop, trg.node);
 371                         } else {
 372                                 bool alternate = false;
 373                                 if ((*args)[0] == '~') {
 374                                         alternate = true;
 375                                         (*args)++;
 376                                 }
 377                                 direction_t dir;
 378                                 if (parse_direction(*args, &dir)) {
 379                                         if (alternate && trg.node->presel != NULL && trg.node->presel->split_dir == dir) {
 380                                                 cancel_presel(trg.monitor, trg.desktop, trg.node);
 381                                         } else {
 382                                                 presel_dir(trg.monitor, trg.desktop, trg.node, dir);
 383                                                 if (!IS_RECEPTACLE(trg.node)) {
 384                                                         draw_presel_feedback(trg.monitor, trg.desktop, trg.node);
 385                                                 }
 386                                         }
 387                                 } else {
 388                                         fail(rsp, "node %s: Invalid argument: '%s%s'.\n", *(args - 1), alternate?"~":"", *args);
 389                                         break;
 390                                 }
 391                         }
 392                 } else if (streq("-o", *args) || streq("--presel-ratio", *args)) {
 393                         num--, args++;
 394                         if (num < 1) {
 395                                 fail(rsp, "node %s: Not enough arguments.\n", *(args - 1));
 396                                 break;
 397                         }
 398                         if (trg.node == NULL || trg.node->vacant) {
 399                                 fail(rsp, "");
 400                                 break;
 401                         }
 402                         double rat;
 403                         if (sscanf(*args, "%lf", &rat) != 1 || rat <= 0 || rat >= 1) {
 404                                 fail(rsp, "node %s: Invalid argument: '%s'.\n", *(args - 1), *args);
 405                                 break;
 406                         } else {
 407                                 presel_ratio(trg.monitor, trg.desktop, trg.node, rat);
 408                                 draw_presel_feedback(trg.monitor, trg.desktop, trg.node);
 409                         }
 410                 } else if (streq("-v", *args) || streq("--move", *args)) {
 411                         num--, args++;
 412                         if (num < 2) {
 413                                 fail(rsp, "node %s: Not enough arguments.\n", *(args - 1));
 414                                 break;
 415                         }
 416                         int dx = 0, dy = 0;
 417                         if (sscanf(*args, "%i", &dx) == 1) {
 418                                 num--, args++;
 419                                 if (sscanf(*args, "%i", &dy) == 1) {
 420                                         if (!move_client(&trg, dx, dy)) {
 421                                                 fail(rsp, "");
 422                                                 break;
 423                                         }
 424                                 } else {
 425                                         fail(rsp, "node %s: Invalid dy argument: '%s'.\n", *(args - 3), *args);
 426                                         break;
 427                                 }
 428                         } else {
 429                                 fail(rsp, "node %s: Invalid dx argument: '%s'.\n", *(args - 2), *args);
 430                                 break;
 431                         }
 432                 } else if (streq("-z", *args) || streq("--resize", *args)) {
 433                         num--, args++;
 434                         if (num < 3) {
 435                                 fail(rsp, "node %s: Not enough arguments.\n", *(args - 1));
 436                                 break;
 437                         }
 438                         resize_handle_t rh;
 439                         if (parse_resize_handle(*args, &rh)) {
 440                                 num--, args++;
 441                                 int dx = 0, dy = 0;
 442                                 if (sscanf(*args, "%i", &dx) == 1) {
 443                                         num--, args++;
 444                                         if (sscanf(*args, "%i", &dy) == 1) {
 445                                                 if (!resize_client(&trg, rh, dx, dy, true)) {
 446                                                         fail(rsp, "");
 447                                                         break;
 448                                                 }
 449                                         } else {
 450                                                 fail(rsp, "node %s: Invalid dy argument: '%s'.\n", *(args - 3), *args);
 451                                                 break;
 452                                         }
 453                                 } else {
 454                                         fail(rsp, "node %s: Invalid dx argument: '%s'.\n", *(args - 2), *args);
 455                                         break;
 456                                 }
 457                         } else {
 458                                 fail(rsp, "node %s: Invalid resize handle argument: '%s'.\n", *(args - 1), *args);
 459                                 break;
 460                         }
 461                 } else if (streq("-y", *args) || streq("--type", *args)) {
 462                         num--, args++;
 463                         if (num < 1) {
 464                                 fail(rsp, "node %s: Not enough arguments.\n", *(args - 1));
 465                                 break;
 466                         }
 467                         if (trg.node == NULL) {
 468                                 fail(rsp, "");
 469                                 break;
 470                         }
 471                         split_type_t typ;
 472                         if (parse_split_type(*args, &typ)) {
 473                                 set_type(trg.node, typ);
 474                                 changed = true;
 475                         } else {
 476                                 fail(rsp, "");
 477                                 break;
 478                         }
 479                 } else if (streq("-r", *args) || streq("--ratio", *args)) {
 480                         num--, args++;
 481                         if (num < 1) {
 482                                 fail(rsp, "node %s: Not enough arguments.\n", *(args - 1));
 483                                 break;
 484                         }
 485                         if (trg.node == NULL) {
 486                                 fail(rsp, "");
 487                                 break;
 488                         }
 489                         if ((*args)[0] == '+' || (*args)[0] == '-') {
 490                                 float delta;
 491                                 if (sscanf(*args, "%f", &delta) == 1) {
 492                                         double rat = trg.node->split_ratio;
 493                                         if (delta > -1 && delta < 1) {
 494                                                 rat += delta;
 495                                         } else {
 496                                                 int max = (trg.node->split_type == TYPE_HORIZONTAL ? trg.node->rectangle.height : trg.node->rectangle.width);
 497                                                 rat = ((max * rat) + delta) / max;
 498                                         }
 499                                         if (rat > 0 && rat < 1) {
 500                                                 set_ratio(trg.node, rat);
 501                                         } else {
 502                                                 fail(rsp, "");
 503                                                 break;
 504                                         }
 505                                 } else {
 506                                         fail(rsp, "node %s: Invalid argument: '%s'.\n", *(args - 1), *args);
 507                                         break;
 508                                 }
 509                         } else {
 510                                 double rat;
 511                                 if (sscanf(*args, "%lf", &rat) == 1 && rat > 0 && rat < 1) {
 512                                         set_ratio(trg.node, rat);
 513                                 } else {
 514                                         fail(rsp, "node %s: Invalid argument: '%s'.\n", *(args - 1), *args);
 515                                         break;
 516                                 }
 517                         }
 518                         changed = true;
 519                 } else if (streq("-F", *args) || streq("--flip", *args)) {
 520                         num--, args++;
 521                         if (num < 1) {
 522                                 fail(rsp, "node %s: Not enough arguments.\n", *(args - 1));
 523                                 break;
 524                         }
 525                         if (trg.node == NULL) {
 526                                 fail(rsp, "");
 527                                 break;
 528                         }
 529                         flip_t flp;
 530                         if (parse_flip(*args, &flp)) {
 531                                 flip_tree(trg.node, flp);
 532                                 changed = true;
 533                         } else {
 534                                 fail(rsp, "");
 535                                 break;
 536                         }
 537                 } else if (streq("-R", *args) || streq("--rotate", *args)) {
 538                         num--, args++;
 539                         if (num < 1) {
 540                                 fail(rsp, "node %s: Not enough arguments.\n", *(args - 1));
 541                                 break;
 542                         }
 543                         if (trg.node == NULL) {
 544                                 fail(rsp, "");
 545                                 break;
 546                         }
 547                         int deg;
 548                         if (parse_degree(*args, &deg)) {
 549                                 rotate_tree(trg.node, deg);
 550                                 changed = true;
 551                         } else {
 552                                 fail(rsp, "node %s: Invalid argument: '%s'.\n", *(args - 1), *args);
 553                                 break;
 554                         }
 555                 } else if (streq("-E", *args) || streq("--equalize", *args)) {
 556                         if (trg.node == NULL) {
 557                                 fail(rsp, "");
 558                                 break;
 559                         }
 560                         equalize_tree(trg.node);
 561                         changed = true;
 562                 } else if (streq("-B", *args) || streq("--balance", *args)) {
 563                         if (trg.node == NULL) {
 564                                 fail(rsp, "");
 565                                 break;
 566                         }
 567                         balance_tree(trg.node);
 568                         changed = true;
 569                 } else if (streq("-C", *args) || streq("--circulate", *args)) {
 570                         num--, args++;
 571                         if (num < 1) {
 572                                 fail(rsp, "node %s: Not enough arguments.\n", *(args - 1));
 573                                 break;
 574                         }
 575                         if (trg.node == NULL) {
 576                                 fail(rsp, "");
 577                                 break;
 578                         }
 579                         circulate_dir_t cir;
 580                         if (parse_circulate_direction(*args, &cir)) {
 581                                 circulate_leaves(trg.monitor, trg.desktop, trg.node, cir);
 582                                 changed = true;
 583                         } else {
 584                                 fail(rsp, "node %s: Invalid argument: '%s'.\n", *(args - 1), *args);
 585                                 break;
 586                         }
 587                 } else if (streq("-i", *args) || streq("--insert-receptacle", *args)) {
 588                         insert_receptacle(trg.monitor, trg.desktop, trg.node);
 589                         changed = true;
 590                 } else if (streq("-c", *args) || streq("--close", *args)) {
 591                         if (num > 1) {
 592                                 fail(rsp, "node %s: Trailing commands.\n", *args);
 593                                 break;
 594                         }
 595                         if (trg.node == NULL || locked_count(trg.node) > 0) {
 596                                 fail(rsp, "");
 597                                 break;
 598                         }
 599                         close_node(trg.node);
 600                         break;
 601                 } else if (streq("-k", *args) || streq("--kill", *args)) {
 602                         if (num > 1) {
 603                                 fail(rsp, "node %s: Trailing commands.\n", *args);
 604                                 break;
 605                         }
 606                         if (trg.node == NULL) {
 607                                 fail(rsp, "");
 608                                 break;
 609                         }
 610                         kill_node(trg.monitor, trg.desktop, trg.node);
 611                         changed = true;
 612                         break;
 613                 } else {
 614                         fail(rsp, "node: Unknown command: '%s'.\n", *args);
 615                         break;
 616                 }
 617
 618                 num--, args++;
 619         }
 620
 621         if (changed) {
 622                 arrange(trg.monitor, trg.desktop);
 623         }
 624 }
 625
 626 void cmd_desktop(char **args, int num, FILE *rsp)
 627 {
 628         if (num < 1) {
 629                 fail(rsp, "desktop: Missing arguments.\n");
 630                 return;
 631         }
 632
 633         coordinates_t ref = {mon, mon->desk, NULL};
 634         coordinates_t trg = ref;
 635
 636         if ((*args)[0] != OPT_CHR) {
 637                 int ret;
 638                 if ((ret = desktop_from_desc(*args, &ref, &trg)) == SELECTOR_OK) {
 639                         num--, args++;
 640                 } else {
 641                         handle_failure(ret, "desktop", *args, rsp);
 642                         return;
 643                 }
 644         }
 645
 646         if (num < 1) {
 647                 fail(rsp, "desktop: Missing commands.\n");
 648                 return;
 649         }
 650
 651         bool changed = false;
 652
 653         while (num > 0) {
 654                 if (streq("-f", *args) || streq("--focus", *args)) {
 655                         coordinates_t dst = trg;
 656                         if (num > 1 && *(args + 1)[0] != OPT_CHR) {
 657                                 num--, args++;
 658                                 int ret;
 659                                 if ((ret = desktop_from_desc(*args, &ref, &dst)) != SELECTOR_OK) {
 660                                         handle_failure(ret, "desktop -f", *args, rsp);
 661                                         break;
 662                                 }
 663                         }
 664                         focus_node(dst.monitor, dst.desktop, NULL);
 665                 } else if (streq("-a", *args) || streq("--activate", *args)) {
 666                         coordinates_t dst = trg;
 667                         if (num > 1 && *(args + 1)[0] != OPT_CHR) {
 668                                 num--, args++;
 669                                 int ret;
 670                                 if ((ret = desktop_from_desc(*args, &ref, &dst)) != SELECTOR_OK) {
 671                                         handle_failure(ret, "desktop -a", *args, rsp);
 672                                         break;
 673                                 }
 674                         }
 675                         if (activate_desktop(dst.monitor, dst.desktop)) {
 676                                 activate_node(dst.monitor, dst.desktop, NULL);
 677                         } else {
 678                                 fail(rsp, "");
 679                                 break;
 680                         }
 681                 } else if (streq("-m", *args) || streq("--to-monitor", *args)) {
 682                         num--, args++;
 683                         if (num < 1) {
 684                                 fail(rsp, "desktop %s: Not enough arguments.\n", *(args - 1));
 685                                 break;
 686                         }
 687                         if (trg.monitor->desk_head == trg.monitor->desk_tail) {
 688                                 fail(rsp, "");
 689                                 break;
 690                         }
 691                         coordinates_t dst;
 692                         int ret;
 693                         if ((ret = monitor_from_desc(*args, &ref, &dst)) == SELECTOR_OK) {
 694                                 bool follow = false;
 695                                 if (num > 1 && streq("--follow", *(args+1))) {
 696                                         follow = true;
 697                                         num--, args++;
 698                                 }
 699                                 if (transfer_desktop(trg.monitor, dst.monitor, trg.desktop, follow)) {
 700                                         trg.monitor = dst.monitor;
 701                                 } else {
 702                                         fail(rsp, "");
 703                                         break;
 704                                 }
 705                         } else {
 706                                 handle_failure(ret, "desktop -m", *args, rsp);
 707                                 break;
 708                         }
 709                 } else if (streq("-s", *args) || streq("--swap", *args)) {
 710                         num--, args++;
 711                         if (num < 1) {
 712                                 fail(rsp, "desktop %s: Not enough arguments.\n", *(args - 1));
 713                                 break;
 714                         }
 715                         coordinates_t dst;
 716                         int ret;
 717                         if ((ret = desktop_from_desc(*args, &ref, &dst)) == SELECTOR_OK) {
 718                                 bool follow = false;
 719                                 if (num > 1 && streq("--follow", *(args+1))) {
 720                                         follow = true;
 721                                         num--, args++;
 722                                 }
 723                                 if (swap_desktops(trg.monitor, trg.desktop, dst.monitor, dst.desktop, follow)) {
 724                                         trg.monitor = dst.monitor;
 725                                 } else {
 726                                         fail(rsp, "");
 727                                         break;
 728                                 }
 729                         } else {
 730                                 handle_failure(ret, "desktop -s", *args, rsp);
 731                                 break;
 732                         }
 733                 } else if (streq("-b", *args) || streq("--bubble", *args)) {
 734                         num--, args++;
 735                         if (num < 1) {
 736                                 fail(rsp, "desktop %s: Not enough arguments.\n", *(args - 1));
 737                                 break;
 738                         }
 739                         cycle_dir_t cyc;
 740                         if (parse_cycle_direction(*args, &cyc)) {
 741                                 desktop_t *d = trg.desktop;
 742                                 if (cyc == CYCLE_PREV) {
 743                                         if (d->prev == NULL) {
 744                                                 while (d->next != NULL) {
 745                                                         swap_desktops(trg.monitor, d, trg.monitor, d->next, false);
 746                                                 }
 747                                         } else {
 748                                                 swap_desktops(trg.monitor, d, trg.monitor, d->prev, false);
 749                                         }
 750                                 } else {
 751                                         if (d->next == NULL) {
 752                                                 while (d->prev != NULL) {
 753                                                         swap_desktops(trg.monitor, d, trg.monitor, d->prev, false);
 754                                                 }
 755                                         } else {
 756                                                 swap_desktops(trg.monitor, d, trg.monitor, d->next, false);
 757                                         }
 758                                 }
 759                         } else {
 760                                 fail(rsp, "desktop %s: Invalid argument: '%s'.\n", *(args - 1), *args);
 761                                 break;
 762                         }
 763                 } else if (streq("-l", *args) || streq("--layout", *args)) {
 764                         num--, args++;
 765                         if (num < 1) {
 766                                 fail(rsp, "desktop %s: Not enough arguments.\n", *(args - 1));
 767                                 break;
 768                         }
 769                         bool ret;
 770                         layout_t lyt;
 771                         cycle_dir_t cyc;
 772                         if (parse_cycle_direction(*args, &cyc)) {
 773                                 ret = set_layout(trg.monitor, trg.desktop, (trg.desktop->user_layout + 1) % 2, true);
 774                         } else if (parse_layout(*args, &lyt)) {
 775                                 ret = set_layout(trg.monitor, trg.desktop, lyt, true);
 776                         } else {
 777                                 fail(rsp, "desktop %s: Invalid argument: '%s'.\n", *(args - 1), *args);
 778                                 break;
 779                         }
 780                         if (!ret) {
 781                                 fail(rsp, "");
 782                                 break;
 783                         }
 784                 } else if (streq("-n", *args) || streq("--rename", *args)) {
 785                         num--, args++;
 786                         if (num < 1) {
 787                                 fail(rsp, "desktop %s: Not enough arguments.\n", *(args - 1));
 788                                 break;
 789                         }
 790                         rename_desktop(trg.monitor, trg.desktop, *args);
 791                 } else if (streq("-r", *args) || streq("--remove", *args)) {
 792                         if (num > 1) {
 793                                 fail(rsp, "desktop %s: Trailing commands.\n", *args);
 794                                 break;
 795                         }
 796                         if (trg.monitor->desk_head != trg.monitor->desk_tail) {
 797                                 desktop_t *fallback = trg.desktop->prev == NULL ?
 798                                                       trg.desktop->next :
 799                                                       trg.desktop->prev;
 800                                 merge_desktops(trg.monitor, trg.desktop, trg.monitor, fallback);
 801                                 remove_desktop(trg.monitor, trg.desktop);
 802                                 return;
 803                         } else {
 804                                 fail(rsp, "");
 805                                 break;
 806                         }
 807                 } else {
 808                         fail(rsp, "desktop: Unknown command: '%s'.\n", *args);
 809                         break;
 810                 }
 811                 num--, args++;
 812         }
 813
 814         if (changed) {
 815                 arrange(trg.monitor, trg.desktop);
 816         }
 817 }
 818
 819 void cmd_monitor(char **args, int num, FILE *rsp)
 820 {
 821         if (num < 1) {
 822                 fail(rsp, "monitor: Missing arguments.\n");
 823                 return;
 824         }
 825
 826         coordinates_t ref = {mon, NULL, NULL};
 827         coordinates_t trg = ref;
 828
 829         if ((*args)[0] != OPT_CHR) {
 830                 int ret;
 831                 if ((ret = monitor_from_desc(*args, &ref, &trg)) == SELECTOR_OK) {
 832                         num--, args++;
 833                 } else {
 834                         handle_failure(ret, "monitor", *args, rsp);
 835                         return;
 836                 }
 837         }
 838
 839         if (num < 1) {
 840                 fail(rsp, "monitor: Missing commands.\n");
 841                 return;
 842         }
 843
 844         while (num > 0) {
 845                 if (streq("-f", *args) || streq("--focus", *args)) {
 846                         coordinates_t dst = trg;
 847                         if (num > 1 && *(args + 1)[0] != OPT_CHR) {
 848                                 num--, args++;
 849                                 int ret;
 850                                 if ((ret = monitor_from_desc(*args, &ref, &dst)) != SELECTOR_OK) {
 851                                         handle_failure(ret, "monitor -f", *args, rsp);
 852                                         fail(rsp, "");
 853                                         return;
 854                                 }
 855                         }
 856                         focus_node(dst.monitor, NULL, NULL);
 857                 } else if (streq("-s", *args) || streq("--swap", *args)) {
 858                         num--, args++;
 859                         if (num < 1) {
 860                                 fail(rsp, "monitor %s: Not enough arguments.\n", *(args - 1));
 861                                 return;
 862                         }
 863                         coordinates_t dst;
 864                         int ret;
 865                         if ((ret = monitor_from_desc(*args, &ref, &dst)) == SELECTOR_OK) {
 866                                 if (!swap_monitors(trg.monitor, dst.monitor)) {
 867                                         fail(rsp, "");
 868                                         return;
 869                                 }
 870                         } else {
 871                                 handle_failure(ret, "monitor -s", *args, rsp);
 872                                 return;
 873                         }
 874                 } else if (streq("-d", *args) || streq("--reset-desktops", *args)) {
 875                         num--, args++;
 876                         if (num < 1) {
 877                                 fail(rsp, "monitor %s: Not enough arguments.\n", *(args - 1));
 878                                 return;
 879                         }
 880                         desktop_t *d = trg.monitor->desk_head;
 881                         while (num > 0 && d != NULL) {
 882                                 rename_desktop(trg.monitor, d, *args);
 883                                 d = d->next;
 884                                 num--, args++;
 885                         }
 886                         put_status(SBSC_MASK_REPORT);
 887                         while (num > 0) {
 888                                 add_desktop(trg.monitor, make_desktop(*args, XCB_NONE));
 889                                 num--, args++;
 890                         }
 891                         while (d != NULL) {
 892                                 desktop_t *next = d->next;
 893                                 if (d == mon->desk) {
 894                                         focus_node(trg.monitor, d->prev, d->prev->focus);
 895                                 }
 896                                 merge_desktops(trg.monitor, d, mon, mon->desk);
 897                                 remove_desktop(trg.monitor, d);
 898                                 d = next;
 899                         }
 900                 } else if (streq("-a", *args) || streq("--add-desktops", *args)) {
 901                         num--, args++;
 902                         if (num < 1) {
 903                                 fail(rsp, "monitor %s: Not enough arguments.\n", *(args - 1));
 904                                 return;
 905                         }
 906                         while (num > 0) {
 907                                 add_desktop(trg.monitor, make_desktop(*args, XCB_NONE));
 908                                 num--, args++;
 909                         }
 910                 } else if (streq("-r", *args) || streq("--remove", *args)) {
 911                         if (num > 1) {
 912                                 fail(rsp, "monitor %s: Trailing commands.\n", *args);
 913                                 return;
 914                         }
 915                         if (mon_head == mon_tail) {
 916                                 fail(rsp, "");
 917                                 return;
 918                         }
 919                         remove_monitor(trg.monitor);
 920                         return;
 921                 } else if (streq("-o", *args) || streq("--reorder-desktops", *args)) {
 922                         num--, args++;
 923                         if (num < 1) {
 924                                 fail(rsp, "monitor %s: Not enough arguments.\n", *(args - 1));
 925                                 return;
 926                         }
 927                         desktop_t *d = trg.monitor->desk_head;
 928                         while (d != NULL && num > 0) {
 929                                 desktop_t *next = d->next;
 930                                 coordinates_t dst;
 931                                 if (locate_desktop(*args, &dst) && dst.monitor == trg.monitor) {
 932                                         swap_desktops(trg.monitor, d, dst.monitor, dst.desktop, false);
 933                                         if (next == dst.desktop) {
 934                                                 next = d;
 935                                         }
 936                                 }
 937                                 d = next;
 938                                 num--, args++;
 939                         }
 940                 } else if (streq("-g", *args) || streq("--rectangle", *args)) {
 941                         num--, args++;
 942                         if (num < 1) {
 943                                 fail(rsp, "monitor %s: Not enough arguments.\n", *(args - 1));
 944                                 return;
 945                         }
 946                         xcb_rectangle_t r;
 947                         if (parse_rectangle(*args, &r)) {
 948                                 update_root(trg.monitor, &r);
 949                         } else {
 950                                 fail(rsp, "monitor %s: Invalid argument: '%s'.\n", *(args - 1), *args);
 951                                 return;
 952                         }
 953                 } else if (streq("-n", *args) || streq("--rename", *args)) {
 954                         num--, args++;
 955                         if (num < 1) {
 956                                 fail(rsp, "monitor %s: Not enough arguments.\n", *(args - 1));
 957                                 return;
 958                         }
 959                         rename_monitor(trg.monitor, *args);
 960                 } else {
 961                         fail(rsp, "monitor: Unknown command: '%s'.\n", *args);
 962                         return;
 963                 }
 964                 num--, args++;
 965         }
 966 }
 967
 968 void cmd_query(char **args, int num, FILE *rsp)
 969 {
 970         coordinates_t monitor_ref = {mon, NULL, NULL};
 971         coordinates_t desktop_ref = {mon, mon->desk, NULL};
 972         coordinates_t node_ref = {mon, mon->desk, mon->desk->focus};
 973         coordinates_t trg = {NULL, NULL, NULL};
 974         monitor_select_t *monitor_sel = NULL;
 975         desktop_select_t *desktop_sel = NULL;
 976         node_select_t *node_sel = NULL;
 977         domain_t dom = DOMAIN_TREE;
 978         bool print_ids = true;
 979         uint8_t d = 0;
 980
 981         if (num < 1) {
 982                 fail(rsp, "query: Missing arguments.\n");
 983                 return;
 984         }
 985
 986         while (num > 0) {
 987                 if (streq("-T", *args) || streq("--tree", *args)) {
 988                         dom = DOMAIN_TREE, d++;
 989                 } else if (streq("-M", *args) || streq("--monitors", *args)) {
 990                         dom = DOMAIN_MONITOR, d++;
 991                         if (num > 1 && *(args + 1)[0] != OPT_CHR) {
 992                                 num--, args++;
 993                                 int ret;
 994                                 coordinates_t tmp = monitor_ref;
 995                                 monitor_ref.desktop = NULL;
 996                                 monitor_ref.node = NULL;
 997                                 if ((ret = monitor_from_desc(*args, &tmp, &monitor_ref)) != SELECTOR_OK) {
 998                                         handle_failure(ret, "query -M", *args, rsp);
 999                                         goto end;
1000                                 }
1001                         }
1002                 } else if (streq("-D", *args) || streq("--desktops", *args)) {
1003                         dom = DOMAIN_DESKTOP, d++;
1004                         if (num > 1 && *(args + 1)[0] != OPT_CHR) {
1005                                 num--, args++;
1006                                 int ret;
1007                                 coordinates_t tmp = desktop_ref;
1008                                 desktop_ref.node = NULL;
1009                                 if ((ret = desktop_from_desc(*args, &tmp, &desktop_ref)) != SELECTOR_OK) {
1010                                         handle_failure(ret, "query -D", *args, rsp);
1011                                         goto end;
1012                                 }
1013                         }
1014                 } else if (streq("-N", *args) || streq("--nodes", *args)) {
1015                         dom = DOMAIN_NODE, d++;
1016                         if (num > 1 && *(args + 1)[0] != OPT_CHR) {
1017                                 num--, args++;
1018                                 int ret;
1019                                 coordinates_t tmp = node_ref;
1020                                 if ((ret = node_from_desc(*args, &tmp, &node_ref)) != SELECTOR_OK) {
1021                                         handle_failure(ret, "query -N", *args, rsp);
1022                                         goto end;
1023                                 }
1024                         }
1025                 } else if (streq("-m", *args) || streq("--monitor", *args)) {
1026                         if (num > 1 && *(args + 1)[0] != OPT_CHR) {
1027                                 num--, args++;
1028                                 int ret;
1029                                 if ((*args)[0] == '.') {
1030                                         free(monitor_sel);
1031                                         monitor_sel = malloc(sizeof(monitor_select_t));
1032                                         *monitor_sel = make_monitor_select();
1033                                         char *desc = copy_string(*args, strlen(*args));
1034                                         if (!parse_monitor_modifiers(desc, monitor_sel)) {
1035                                                 handle_failure(SELECTOR_BAD_MODIFIERS, "query -m", *args, rsp);
1036                                                 free(desc);
1037                                                 goto end;
1038                                         }
1039                                         free(desc);
1040                                 } else if ((ret = monitor_from_desc(*args, &monitor_ref, &trg)) != SELECTOR_OK) {
1041                                         handle_failure(ret, "query -m", *args, rsp);
1042                                         goto end;
1043                                 }
1044                         } else {
1045                                 trg = monitor_ref;
1046                         }
1047                 } else if (streq("-d", *args) || streq("--desktop", *args)) {
1048                         if (num > 1 && *(args + 1)[0] != OPT_CHR) {
1049                                 num--, args++;
1050                                 int ret;
1051                                 if ((*args)[0] == '.') {
1052                                         free(desktop_sel);
1053                                         desktop_sel = malloc(sizeof(desktop_select_t));
1054                                         *desktop_sel = make_desktop_select();
1055                                         char *desc = copy_string(*args, strlen(*args));
1056                                         if (!parse_desktop_modifiers(desc, desktop_sel)) {
1057                                                 handle_failure(SELECTOR_BAD_MODIFIERS, "query -d", *args, rsp);
1058                                                 free(desc);
1059                                                 goto end;
1060                                         }
1061                                         free(desc);
1062                                 } else if ((ret = desktop_from_desc(*args, &desktop_ref, &trg)) != SELECTOR_OK) {
1063                                         handle_failure(ret, "query -d", *args, rsp);
1064                                         goto end;
1065                                 }
1066                         } else {
1067                                 trg = desktop_ref;
1068                         }
1069                 } else if (streq("-n", *args) || streq("--node", *args)) {
1070                         if (num > 1 && *(args + 1)[0] != OPT_CHR) {
1071                                 num--, args++;
1072                                 int ret;
1073                                 if ((*args)[0] == '.') {
1074                                         free(node_sel);
1075                                         node_sel = malloc(sizeof(node_select_t));
1076                                         *node_sel = make_node_select();
1077                                         char *desc = copy_string(*args, strlen(*args));
1078                                         if (!parse_node_modifiers(desc, node_sel)) {
1079                                                 handle_failure(SELECTOR_BAD_MODIFIERS, "query -n", *args, rsp);
1080                                                 free(desc);
1081                                                 goto end;
1082                                         }
1083                                         free(desc);
1084                                 } else if ((ret = node_from_desc(*args, &node_ref, &trg)) != SELECTOR_OK) {
1085                                         handle_failure(ret, "query -n", *args, rsp);
1086                                         goto end;
1087                                 }
1088                         } else {
1089                                 trg = node_ref;
1090                                 if (trg.node == NULL) {
1091                                         fail(rsp, "");
1092                                         goto end;
1093                                 }
1094                         }
1095                 } else if (streq("--names", *args)) {
1096                         print_ids = false;
1097                 } else {
1098                         fail(rsp, "query: Unknown option: '%s'.\n", *args);
1099                         goto end;
1100                 }
1101                 num--, args++;
1102         }
1103
1104         if (d < 1) {
1105                 fail(rsp, "query: No commands given.\n");
1106                 goto end;
1107         }
1108
1109         if (d > 1) {
1110                 fail(rsp, "query: Multiple commands given.\n");
1111                 goto end;
1112         }
1113
1114         if (dom == DOMAIN_TREE && trg.monitor == NULL) {
1115                 fail(rsp, "query -T: No options given.\n");
1116                 goto end;
1117         }
1118
1119         if (!print_ids && (dom == DOMAIN_NODE || dom == DOMAIN_TREE)) {
1120                 fail(rsp, "query -%c: --names only applies to -M and -D.\n", dom == DOMAIN_NODE ? 'N' : 'T');
1121                 goto end;
1122         }
1123
1124         if ((dom == DOMAIN_MONITOR && (desktop_sel != NULL || node_sel != NULL)) ||
1125             (dom == DOMAIN_DESKTOP && node_sel != NULL)) {
1126                 fail(rsp, "query -%c: Incompatible descriptor-free constraints.\n", dom == DOMAIN_MONITOR ? 'M' : 'D');
1127                 goto end;
1128         }
1129
1130         if (dom == DOMAIN_NODE) {
1131                 if (query_node_ids(&monitor_ref, &desktop_ref, &node_ref, &trg, monitor_sel, desktop_sel, node_sel, rsp) < 1) {
1132                         fail(rsp, "");
1133                 }
1134         } else if (dom == DOMAIN_DESKTOP) {
1135                 if (query_desktop_ids(&monitor_ref, &desktop_ref, &trg, monitor_sel, desktop_sel, print_ids ? fprint_desktop_id : fprint_desktop_name, rsp) < 1) {
1136                         fail(rsp, "");
1137                 }
1138         } else if (dom == DOMAIN_MONITOR) {
1139                 if (query_monitor_ids(&monitor_ref, &trg, monitor_sel, print_ids ? fprint_monitor_id : fprint_monitor_name, rsp) < 1) {
1140                         fail(rsp, "");
1141                 }
1142         } else {
1143                 if (trg.node != NULL) {
1144                         query_node(trg.node, rsp);
1145                 } else if (trg.desktop != NULL) {
1146                         query_desktop(trg.desktop, rsp);
1147                 } else  {
1148                         query_monitor(trg.monitor, rsp);
1149                 }
1150                 fprintf(rsp, "\n");
1151         }
1152
1153 end:
1154         free(monitor_sel);
1155         free(desktop_sel);
1156         free(node_sel);
1157 }
1158
1159 void cmd_rule(char **args, int num, FILE *rsp)
1160 {
1161         if (num < 1) {
1162                 fail(rsp, "rule: Missing commands.\n");
1163                 return;
1164         }
1165
1166         while (num > 0) {
1167                 if (streq("-a", *args) || streq("--add", *args)) {
1168                         num--, args++;
1169                         if (num < 2) {
1170                                 fail(rsp, "rule %s: Not enough arguments.\n", *(args - 1));
1171                                 return;
1172                         }
1173                         rule_t *rule = make_rule();
1174                         char *class_name = strtok(*args, COL_TOK);
1175                         char *instance_name = strtok(NULL, COL_TOK);
1176                         char *name = strtok(NULL, COL_TOK);
1177                         snprintf(rule->class_name, sizeof(rule->class_name), "%s", class_name);
1178                         snprintf(rule->instance_name, sizeof(rule->instance_name), "%s", instance_name==NULL?MATCH_ANY:instance_name);
1179                         snprintf(rule->name, sizeof(rule->name), "%s", name==NULL?MATCH_ANY:name);
1180                         num--, args++;
1181                         size_t i = 0;
1182                         while (num > 0) {
1183                                 if (streq("-o", *args) || streq("--one-shot", *args)) {
1184                                         rule->one_shot = true;
1185                                 } else {
1186                                         for (size_t j = 0; i < sizeof(rule->effect) && j < strlen(*args); i++, j++) {
1187                                                 rule->effect[i] = (*args)[j];
1188                                         }
1189                                         if (num > 1 && i < sizeof(rule->effect)) {
1190                                                 rule->effect[i++] = ' ';
1191                                         }
1192                                 }
1193                                 num--, args++;
1194                         }
1195                         rule->effect[MIN(i, sizeof(rule->effect) - 1)] = '\0';
1196                         add_rule(rule);
1197                 } else if (streq("-r", *args) || streq("--remove", *args)) {
1198                         num--, args++;
1199                         if (num < 1) {
1200                                 fail(rsp, "rule %s: Not enough arguments.\n", *(args - 1));
1201                                 return;
1202                         }
1203                         uint16_t idx;
1204                         while (num > 0) {
1205                                 if (parse_index(*args, &idx)) {
1206                                         remove_rule_by_index(idx - 1);
1207                                 } else if (streq("tail", *args)) {
1208                                         remove_rule(rule_tail);
1209                                 } else if (streq("head", *args)) {
1210                                         remove_rule(rule_head);
1211                                 } else {
1212                                         remove_rule_by_cause(*args);
1213                                 }
1214                                 num--, args++;
1215                         }
1216                 } else if (streq("-l", *args) || streq("--list", *args)) {
1217                         list_rules(rsp);
1218                 } else {
1219                         fail(rsp, "rule: Unknown command: '%s'.\n", *args);
1220                         return;
1221                 }
1222                 num--, args++;
1223         }
1224 }
1225
1226 void cmd_wm(char **args, int num, FILE *rsp)
1227 {
1228         if (num < 1) {
1229                 fail(rsp, "wm: Missing commands.\n");
1230                 return;
1231         }
1232
1233         while (num > 0) {
1234                 if (streq("-d", *args) || streq("--dump-state", *args)) {
1235                         query_state(rsp);
1236                         fprintf(rsp, "\n");
1237                 } else if (streq("-l", *args) || streq("--load-state", *args)) {
1238                         num--, args++;
1239                         if (num < 1) {
1240                                 fail(rsp, "wm %s: Not enough arguments.\n", *(args - 1));
1241                                 break;
1242                         }
1243                         if (!restore_state(*args)) {
1244                                 fail(rsp, "");
1245                                 break;
1246                         }
1247                 } else if (streq("-a", *args) || streq("--add-monitor", *args)) {
1248                         num--, args++;
1249                         if (num < 2) {
1250                                 fail(rsp, "wm %s: Not enough arguments.\n", *(args - 1));
1251                                 break;
1252                         }
1253                         char *name = *args;
1254                         num--, args++;
1255                         xcb_rectangle_t r;
1256                         if (parse_rectangle(*args, &r)) {
1257                                 monitor_t *m = make_monitor(name, &r, XCB_NONE);
1258                                 add_monitor(m);
1259                                 add_desktop(m, make_desktop(NULL, XCB_NONE));
1260                         } else {
1261                                 fail(rsp, "wm %s: Invalid argument: '%s'.\n", *(args - 1), *args);
1262                                 break;
1263                         }
1264                 } else if (streq("-O", *args) || streq("--reorder-monitors", *args)) {
1265                         num--, args++;
1266                         if (num < 1) {
1267                                 fail(rsp, "wm %s: Not enough arguments.\n", *(args - 1));
1268                                 return;
1269                         }
1270                         monitor_t *m = mon_head;
1271                         while (m != NULL && num > 0) {
1272                                 monitor_t *next = m->next;
1273                                 coordinates_t dst;
1274                                 if (locate_monitor(*args, &dst)) {
1275                                         swap_monitors(m, dst.monitor);
1276                                         if (next == dst.monitor) {
1277                                                 next = m;
1278                                         }
1279                                 }
1280                                 m = next;
1281                                 num--, args++;
1282                         }
1283                 } else if (streq("-o", *args) || streq("--adopt-orphans", *args)) {
1284                         adopt_orphans();
1285                 } else if (streq("-g", *args) || streq("--get-status", *args)) {
1286                         print_report(rsp);
1287                 } else if (streq("-h", *args) || streq("--record-history", *args)) {
1288                         num--, args++;
1289                         if (num < 1) {
1290                                 fail(rsp, "wm %s: Not enough arguments.\n", *(args - 1));
1291                                 break;
1292                         }
1293                         bool b;
1294                         if (parse_bool(*args, &b)) {
1295                                 record_history = b;
1296                         } else {
1297                                 fail(rsp, "wm %s: Invalid argument: '%s'.\n", *(args - 1), *args);
1298                                 break;
1299                         }
1300                 } else if (streq("-r", *args) || streq("--restart", *args)) {
1301                         running = false;
1302                         restart = true;
1303                         break;
1304                 } else {
1305                         fail(rsp, "wm: Unknown command: '%s'.\n", *args);
1306                         break;
1307                 }
1308                 num--, args++;
1309         }
1310 }
1311
1312 void cmd_subscribe(char **args, int num, FILE *rsp)
1313 {
1314         int field = 0;
1315         int count = -1;
1316         FILE *stream = rsp;
1317         char *fifo_path = NULL;
1318         subscriber_mask_t mask;
1319
1320         while (num > 0) {
1321                 if (streq("-c", *args) || streq("--count", *args)) {
1322                         num--, args++;
1323                         if (num < 1) {
1324                                 fail(rsp, "subscribe %s: Not enough arguments.\n", *(args - 1));
1325                                 goto failed;
1326                         }
1327                         if (sscanf(*args, "%i", &count) != 1 || count < 1) {
1328                                 fail(rsp, "subscribe %s: Invalid argument: '%s'.\n", *(args - 1), *args);
1329                                 goto failed;
1330                         }
1331                 } else if (streq("-f", *args) || streq("--fifo", *args)) {
1332                         fifo_path = mktempfifo(FIFO_TEMPLATE);
1333                         if (fifo_path == NULL) {
1334                                 fail(rsp, "subscribe %s: Can't create FIFO.\n", *(args - 1));
1335                                 goto failed;
1336                         }
1337                 } else if (parse_subscriber_mask(*args, &mask)) {
1338                         field |= mask;
1339                 } else {
1340                         fail(rsp, "subscribe: Invalid argument: '%s'.\n", *args);
1341                         goto failed;
1342                 }
1343                 num--, args++;
1344         }
1345
1346         if (field == 0) {
1347                 field = SBSC_MASK_REPORT;
1348         }
1349
1350         if (fifo_path) {
1351                 fprintf(rsp, "%s\n", fifo_path);
1352                 fflush(rsp);
1353                 fclose(rsp);
1354
1355                 stream = fopen(fifo_path, "w");
1356
1357                 if (stream == NULL) {
1358                         perror("subscribe: fopen");
1359                         goto free_fifo_path;
1360                 }
1361         }
1362
1363         subscriber_list_t *sb = make_subscriber(stream, fifo_path, field, count);
1364         add_subscriber(sb);
1365         return;
1366
1367 failed:
1368         fflush(rsp);
1369         fclose(rsp);
1370
1371 free_fifo_path:
1372         if (fifo_path) {
1373                 unlink(fifo_path);
1374                 free(fifo_path);
1375         }
1376 }
1377
1378 void cmd_quit(char **args, int num, FILE *rsp)
1379 {
1380         if (num > 0 && sscanf(*args, "%i", &exit_status) != 1) {
1381                 fail(rsp, "%s: Invalid argument: '%s'.\n", *(args - 1), *args);
1382                 return;
1383         }
1384         running = false;
1385 }
1386
1387 void cmd_config(char **args, int num, FILE *rsp)
1388 {
1389         if (num < 1) {
1390                 fail(rsp, "config: Missing arguments.\n");
1391                 return;
1392         }
1393
1394         coordinates_t ref = {mon, mon->desk, mon->desk->focus};
1395         coordinates_t trg = {NULL, NULL, NULL};
1396
1397         while (num > 0 && (*args)[0] == OPT_CHR) {
1398                 if (streq("-m", *args) || streq("--monitor", *args)) {
1399                         num--, args++;
1400                         if (num < 1) {
1401                                 fail(rsp, "config %s: Not enough arguments.\n", *(args - 1));
1402                                 return;
1403                         }
1404                         int ret;
1405                         if ((ret = monitor_from_desc(*args, &ref, &trg)) != SELECTOR_OK) {
1406                                 handle_failure(ret, "config -m", *args, rsp);
1407                                 return;
1408                         }
1409                 } else if (streq("-d", *args) || streq("--desktop", *args)) {
1410                         num--, args++;
1411                         if (num < 1) {
1412                                 fail(rsp, "config %s: Not enough arguments.\n", *(args - 1));
1413                                 return;
1414                         }
1415                         int ret;
1416                         if ((ret = desktop_from_desc(*args, &ref, &trg)) != SELECTOR_OK) {
1417                                 handle_failure(ret, "config -d", *args, rsp);
1418                                 return;
1419                         }
1420                 } else if (streq("-n", *args) || streq("--node", *args)) {
1421                         num--, args++;
1422                         if (num < 1) {
1423                                 fail(rsp, "config %s: Not enough arguments.\n", *(args - 1));
1424                                 return;
1425                         }
1426                         int ret;
1427                         if ((ret = node_from_desc(*args, &ref, &trg)) != SELECTOR_OK) {
1428                                 handle_failure(ret, "config -n", *args, rsp);
1429                                 return;
1430                         }
1431                 } else {
1432                         fail(rsp, "config: Unknown option: '%s'.\n", *args);
1433                         return;
1434                 }
1435                 num--, args++;
1436         }
1437         if (num == 2) {
1438                 set_setting(trg, *args, *(args + 1), rsp);
1439         } else if (num == 1) {
1440                 get_setting(trg, *args, rsp);
1441         } else {
1442                 fail(rsp, "config: Was expecting 1 or 2 arguments, received %i.\n", num);
1443         }
1444 }
1445
1446 void set_setting(coordinates_t loc, char *name, char *value, FILE *rsp)
1447 {
1448         bool colors_changed = false;
1449 #define SET_DEF_DEFMON_DEFDESK_WIN(k, v) \
1450                 if (loc.node != NULL) { \
1451                         for (node_t *n = first_extrema(loc.node); n != NULL; n = next_leaf(n, loc.node)) { \
1452                                 if (n->client != NULL) { \
1453                                         n->client->k = v; \
1454                                 } \
1455                         } \
1456                 } else if (loc.desktop != NULL) { \
1457                         loc.desktop->k = v; \
1458                         for (node_t *n = first_extrema(loc.desktop->root); n != NULL; n = next_leaf(n, loc.desktop->root)) { \
1459                                 if (n->client != NULL) { \
1460                                         n->client->k = v; \
1461                                 } \
1462                         } \
1463                 } else if (loc.monitor != NULL) { \
1464                         loc.monitor->k = v; \
1465                         for (desktop_t *d = loc.monitor->desk_head; d != NULL; d = d->next) { \
1466                                 d->k = v; \
1467                                 for (node_t *n = first_extrema(d->root); n != NULL; n = next_leaf(n, d->root)) { \
1468                                         if (n->client != NULL) { \
1469                                                 n->client->k = v; \
1470                                         } \
1471                                 } \
1472                         } \
1473                 } else { \
1474                         k = v; \
1475                         for (monitor_t *m = mon_head; m != NULL; m = m->next) { \
1476                                 m->k = v; \
1477                                 for (desktop_t *d = m->desk_head; d != NULL; d = d->next) { \
1478                                         d->k = v; \
1479                                         for (node_t *n = first_extrema(d->root); n != NULL; n = next_leaf(n, d->root)) { \
1480                                                 if (n->client != NULL) { \
1481                                                         n->client->k = v; \
1482                                                 } \
1483                                         } \
1484                                 } \
1485                         } \
1486                 }
1487         if (streq("border_width", name)) {
1488                 unsigned int bw;
1489                 if (sscanf(value, "%u", &bw) != 1) {
1490                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1491                         return;
1492                 }
1493                 SET_DEF_DEFMON_DEFDESK_WIN(border_width, bw)
1494 #undef SET_DEF_DEFMON_DEFDESK_WIN
1495 #define SET_DEF_DEFMON_DESK(k, v) \
1496                 if (loc.desktop != NULL) { \
1497                         loc.desktop->k = v; \
1498                 } else if (loc.monitor != NULL) { \
1499                         loc.monitor->k = v; \
1500                         for (desktop_t *d = loc.monitor->desk_head; d != NULL; d = d->next) { \
1501                                 d->k = v; \
1502                         } \
1503                 } else { \
1504                         k = v; \
1505                         for (monitor_t *m = mon_head; m != NULL; m = m->next) { \
1506                                 m->k = v; \
1507                                 for (desktop_t *d = m->desk_head; d != NULL; d = d->next) { \
1508                                         d->k = v; \
1509                                 } \
1510                         } \
1511                 }
1512         } else if (streq("window_gap", name)) {
1513                 int wg;
1514                 if (sscanf(value, "%i", &wg) != 1) {
1515                         fail(rsp, "");
1516                         return;
1517                 }
1518                 SET_DEF_DEFMON_DESK(window_gap, wg)
1519 #undef SET_DEF_DEFMON_DESK
1520 #define SET_DEF_MON_DESK(k, v) \
1521                 if (loc.desktop != NULL) { \
1522                         loc.desktop->k = v; \
1523                 } else if (loc.monitor != NULL) { \
1524                         loc.monitor->k = v; \
1525                 } else { \
1526                         k = v; \
1527                         for (monitor_t *m = mon_head; m != NULL; m = m->next) { \
1528                                 m->k = v; \
1529                         } \
1530                 }
1531         } else if (streq("top_padding", name)) {
1532                 int tp;
1533                 if (sscanf(value, "%i", &tp) != 1) {
1534                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1535                         return;
1536                 }
1537                 SET_DEF_MON_DESK(padding.top, tp)
1538         } else if (streq("right_padding", name)) {
1539                 int rp;
1540                 if (sscanf(value, "%i", &rp) != 1) {
1541                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1542                         return;
1543                 }
1544                 SET_DEF_MON_DESK(padding.right, rp)
1545         } else if (streq("bottom_padding", name)) {
1546                 int bp;
1547                 if (sscanf(value, "%i", &bp) != 1) {
1548                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1549                         return;
1550                 }
1551                 SET_DEF_MON_DESK(padding.bottom, bp)
1552         } else if (streq("left_padding", name)) {
1553                 int lp;
1554                 if (sscanf(value, "%i", &lp) != 1) {
1555                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1556                         return;
1557                 }
1558                 SET_DEF_MON_DESK(padding.left, lp)
1559 #undef SET_DEF_MON_DESK
1560         } else if (streq("top_monocle_padding", name)) {
1561                 if (sscanf(value, "%i", &monocle_padding.top) != 1) {
1562                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1563                 }
1564         } else if (streq("right_monocle_padding", name)) {
1565                 if (sscanf(value, "%i", &monocle_padding.right) != 1) {
1566                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1567                 }
1568         } else if (streq("bottom_monocle_padding", name)) {
1569                 if (sscanf(value, "%i", &monocle_padding.bottom) != 1) {
1570                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1571                 }
1572         } else if (streq("left_monocle_padding", name)) {
1573                 if (sscanf(value, "%i", &monocle_padding.left) != 1) {
1574                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1575                 }
1576 #define SET_STR(s) \
1577         } else if (streq(#s, name)) { \
1578                 if (snprintf(s, sizeof(s), "%s", value) < 0) { \
1579                         fail(rsp, ""); \
1580                         return; \
1581                 }
1582         SET_STR(external_rules_command)
1583         SET_STR(status_prefix)
1584 #undef SET_STR
1585         } else if (streq("split_ratio", name)) {
1586                 double r;
1587                 if (sscanf(value, "%lf", &r) == 1 && r > 0 && r < 1) {
1588                         split_ratio = r;
1589                 } else {
1590                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value); \
1591                         return;
1592                 }
1593                 return;
1594 #define SET_COLOR(s) \
1595         } else if (streq(#s, name)) { \
1596                 if (!is_hex_color(value)) { \
1597                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value); \
1598                         return; \
1599                 } else { \
1600                         snprintf(s, sizeof(s), "%s", value); \
1601                         colors_changed = true; \
1602                 }
1603         SET_COLOR(normal_border_color)
1604         SET_COLOR(active_border_color)
1605         SET_COLOR(focused_border_color)
1606         SET_COLOR(presel_feedback_color)
1607 #undef SET_COLOR
1608         } else if (streq("initial_polarity", name)) {
1609                 child_polarity_t p;
1610                 if (parse_child_polarity(value, &p)) {
1611                         initial_polarity = p;
1612                 } else {
1613                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1614                         return;
1615                 }
1616         } else if (streq("automatic_scheme", name)) {
1617                 automatic_scheme_t a;
1618                 if (parse_automatic_scheme(value, &a)) {
1619                         automatic_scheme = a;
1620                 } else {
1621                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1622                         return;
1623                 }
1624         } else if (streq("mapping_events_count", name)) {
1625                 if (sscanf(value, "%" SCNi8, &mapping_events_count) != 1) {
1626                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1627                         return;
1628                 }
1629         } else if (streq("directional_focus_tightness", name)) {
1630                 tightness_t p;
1631                 if (parse_tightness(value, &p)) {
1632                         directional_focus_tightness = p;
1633                 } else {
1634                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1635                         return;
1636                 }
1637         } else if (streq("ignore_ewmh_fullscreen", name)) {
1638                 state_transition_t m;
1639                 if (parse_state_transition(value, &m)) {
1640                         ignore_ewmh_fullscreen = m;
1641                 } else {
1642                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1643                         return;
1644                 }
1645         } else if (streq("pointer_modifier", name)) {
1646                 if (parse_modifier_mask(value, &pointer_modifier)) {
1647                         ungrab_buttons();
1648                         grab_buttons();
1649                 } else {
1650                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1651                         return;
1652                 }
1653         } else if (streq("pointer_motion_interval", name)) {
1654                 if (sscanf(value, "%u", &pointer_motion_interval) != 1) {
1655                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1656                         return;
1657                 }
1658         } else if (streq("pointer_action1", name) ||
1659                    streq("pointer_action2", name) ||
1660                    streq("pointer_action3", name)) {
1661                 int index = name[14] - '1';
1662                 if (parse_pointer_action(value, &pointer_actions[index])) {
1663                         ungrab_buttons();
1664                         grab_buttons();
1665                 } else {
1666                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1667                         return;
1668                 }
1669         } else if (streq("click_to_focus", name)) {
1670                 if (parse_button_index(value, &click_to_focus)) {
1671                         ungrab_buttons();
1672                         grab_buttons();
1673                 } else {
1674                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1675                         return;
1676                 }
1677         } else if (streq("single_monocle", name)) {
1678                 bool b;
1679                 if (parse_bool(value, &b)) {
1680                         if (b == single_monocle) {
1681                                 fail(rsp, "");
1682                                 return;
1683                         }
1684                         single_monocle = b;
1685                         for (monitor_t *m = mon_head; m != NULL; m = m->next) {
1686                                 for (desktop_t *d = m->desk_head; d != NULL; d = d->next) {
1687                                         layout_t l = (single_monocle && tiled_count(d->root, true) <= 1) ? LAYOUT_MONOCLE : d->user_layout;
1688                                         set_layout(m, d, l, false);
1689                                 }
1690                         }
1691                 } else {
1692                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1693                         return;
1694                 }
1695         } else if (streq("focus_follows_pointer", name)) {
1696                 bool b;
1697                 if (parse_bool(value, &b)) {
1698                         if (b == focus_follows_pointer) {
1699                                 fail(rsp, "");
1700                                 return;
1701                         }
1702                         focus_follows_pointer = b;
1703                         for (monitor_t *m = mon_head; m != NULL; m = m->next) {
1704                                 if (focus_follows_pointer) {
1705                                         window_show(m->root);
1706                                 } else {
1707                                         window_hide(m->root);
1708                                 }
1709                                 for (desktop_t *d = m->desk_head; d != NULL; d = d->next) {
1710                                         listen_enter_notify(d->root, focus_follows_pointer);
1711                                 }
1712                         }
1713                         if (focus_follows_pointer) {
1714                                 update_motion_recorder();
1715                         } else {
1716                                 disable_motion_recorder();
1717                         }
1718                         return;
1719                 } else {
1720                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value);
1721                         return;
1722                 }
1723 #define SET_BOOL(s) \
1724         } else if (streq(#s, name)) { \
1725                 if (!parse_bool(value, &s)) { \
1726                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value); \
1727                         return; \
1728                 }
1729                 SET_BOOL(presel_feedback)
1730                 SET_BOOL(borderless_monocle)
1731                 SET_BOOL(gapless_monocle)
1732                 SET_BOOL(borderless_singleton)
1733                 SET_BOOL(swallow_first_click)
1734                 SET_BOOL(pointer_follows_focus)
1735                 SET_BOOL(pointer_follows_monitor)
1736                 SET_BOOL(ignore_ewmh_focus)
1737                 SET_BOOL(ignore_ewmh_struts)
1738                 SET_BOOL(center_pseudo_tiled)
1739                 SET_BOOL(honor_size_hints)
1740                 SET_BOOL(removal_adjustment)
1741 #undef SET_BOOL
1742 #define SET_MON_BOOL(s) \
1743         } else if (streq(#s, name)) { \
1744                 if (!parse_bool(value, &s)) { \
1745                         fail(rsp, "config: %s: Invalid value: '%s'.\n", name, value); \
1746                         return; \
1747                 } \
1748                 if (s) { \
1749                         update_monitors(); \
1750                 }
1751                 SET_MON_BOOL(remove_disabled_monitors)
1752                 SET_MON_BOOL(remove_unplugged_monitors)
1753                 SET_MON_BOOL(merge_overlapping_monitors)
1754 #undef SET_MON_BOOL
1755         } else {
1756                 fail(rsp, "config: Unknown setting: '%s'.\n", name);
1757                 return;
1758         }
1759
1760         for (monitor_t *m = mon_head; m != NULL; m = m->next) {
1761                 for (desktop_t *d = m->desk_head; d != NULL; d = d->next) {
1762                         arrange(m, d);
1763                         if (colors_changed) {
1764                                 update_colors_in(d->root, d, m);
1765                         }
1766                 }
1767         }
1768 }
1769
1770 void get_setting(coordinates_t loc, char *name, FILE* rsp)
1771 {
1772         if (streq("split_ratio", name)) {
1773                 fprintf(rsp, "%lf", split_ratio);
1774         } else if (streq("border_width", name)) {
1775                 if (loc.node != NULL) {
1776                         for (node_t *n = first_extrema(loc.node); n != NULL; n = next_leaf(n, loc.node)) {
1777                                 if (n->client != NULL) {
1778                                         fprintf(rsp, "%u", n->client->border_width);
1779                                         break;
1780                                 }
1781                         }
1782                 } else if (loc.desktop != NULL) {
1783                         fprintf(rsp, "%u", loc.desktop->border_width);
1784                 } else if (loc.monitor != NULL) {
1785                         fprintf(rsp, "%u", loc.monitor->border_width);
1786                 } else {
1787                         fprintf(rsp, "%u", border_width);
1788                 }
1789         } else if (streq("window_gap", name)) {
1790                 if (loc.desktop != NULL) {
1791                         fprintf(rsp, "%i", loc.desktop->window_gap);
1792                 } else if (loc.monitor != NULL) {
1793                         fprintf(rsp, "%i", loc.monitor->window_gap);
1794                 } else {
1795                         fprintf(rsp, "%i", window_gap);
1796                 }
1797 #define GET_DEF_MON_DESK(k) \
1798                 if (loc.desktop != NULL) { \
1799                         fprintf(rsp, "%i", loc.desktop->k); \
1800                 } else if (loc.monitor != NULL) { \
1801                         fprintf(rsp, "%i", loc.monitor->k); \
1802                 } else { \
1803                         fprintf(rsp, "%i", k); \
1804                 }
1805         } else if (streq("top_padding", name)) {
1806                 GET_DEF_MON_DESK(padding.top)
1807         } else if (streq("right_padding", name)) {
1808                 GET_DEF_MON_DESK(padding.right)
1809         } else if (streq("bottom_padding", name)) {
1810                 GET_DEF_MON_DESK(padding.bottom)
1811         } else if (streq("left_padding", name)) {
1812                 GET_DEF_MON_DESK(padding.left)
1813 #undef GET_DEF_MON_DESK
1814         } else if (streq("top_monocle_padding", name)) {
1815                 fprintf(rsp, "%i", monocle_padding.top);
1816         } else if (streq("right_monocle_padding", name)) {
1817                 fprintf(rsp, "%i", monocle_padding.right);
1818         } else if (streq("bottom_monocle_padding", name)) {
1819                 fprintf(rsp, "%i", monocle_padding.bottom);
1820         } else if (streq("left_monocle_padding", name)) {
1821                 fprintf(rsp, "%i", monocle_padding.left);
1822         } else if (streq("external_rules_command", name)) {
1823                 fprintf(rsp, "%s", external_rules_command);
1824         } else if (streq("status_prefix", name)) {
1825                 fprintf(rsp, "%s", status_prefix);
1826         } else if (streq("initial_polarity", name)) {
1827                 fprintf(rsp, "%s", CHILD_POL_STR(initial_polarity));
1828         } else if (streq("automatic_scheme", name)) {
1829                 fprintf(rsp, "%s", AUTO_SCM_STR(automatic_scheme));
1830         } else if (streq("mapping_events_count", name)) {
1831                 fprintf(rsp, "%" PRIi8, mapping_events_count);
1832         } else if (streq("directional_focus_tightness", name)) {
1833                 fprintf(rsp, "%s", TIGHTNESS_STR(directional_focus_tightness));
1834         } else if (streq("ignore_ewmh_fullscreen", name)) {
1835                 print_ignore_request(ignore_ewmh_fullscreen, rsp);
1836         } else if (streq("pointer_modifier", name)) {
1837                 print_modifier_mask(pointer_modifier, rsp);
1838         } else if (streq("click_to_focus", name)) {
1839                 print_button_index(click_to_focus, rsp);
1840         } else if (streq("pointer_motion_interval", name)) {
1841                 fprintf(rsp, "%u", pointer_motion_interval);
1842         } else if (streq("pointer_action1", name) ||
1843                    streq("pointer_action2", name) ||
1844                    streq("pointer_action3", name)) {
1845                 int index = name[14] - '1';
1846                 print_pointer_action(pointer_actions[index], rsp);
1847 #define GET_COLOR(s) \
1848         } else if (streq(#s, name)) { \
1849                 fprintf(rsp, "%s", s);
1850         GET_COLOR(normal_border_color)
1851         GET_COLOR(active_border_color)
1852         GET_COLOR(focused_border_color)
1853         GET_COLOR(presel_feedback_color)
1854 #undef GET_COLOR
1855 #define GET_BOOL(s) \
1856         } else if (streq(#s, name)) { \
1857                 fprintf(rsp, "%s", BOOL_STR(s));
1858         GET_BOOL(presel_feedback)
1859         GET_BOOL(borderless_monocle)
1860         GET_BOOL(gapless_monocle)
1861         GET_BOOL(single_monocle)
1862         GET_BOOL(borderless_singleton)
1863         GET_BOOL(swallow_first_click)
1864         GET_BOOL(focus_follows_pointer)
1865         GET_BOOL(pointer_follows_focus)
1866         GET_BOOL(pointer_follows_monitor)
1867         GET_BOOL(ignore_ewmh_focus)
1868         GET_BOOL(ignore_ewmh_struts)
1869         GET_BOOL(center_pseudo_tiled)
1870         GET_BOOL(honor_size_hints)
1871         GET_BOOL(removal_adjustment)
1872         GET_BOOL(remove_disabled_monitors)
1873         GET_BOOL(remove_unplugged_monitors)
1874         GET_BOOL(merge_overlapping_monitors)
1875 #undef GET_BOOL
1876         } else {
1877                 fail(rsp, "config: Unknown setting: '%s'.\n", name);
1878                 return;
1879         }
1880         fprintf(rsp, "\n");
1881 }
1882
1883 void handle_failure(int code, char *src, char *val, FILE *rsp)
1884 {
1885         switch (code) {
1886                 case SELECTOR_BAD_DESCRIPTOR:
1887                         fail(rsp, "%s: Invalid descriptor found in '%s'.\n", src, val);
1888                         break;
1889                 case SELECTOR_BAD_MODIFIERS:
1890                         fail(rsp, "%s: Invalid modifier found in '%s'.\n", src, val);
1891                         break;
1892                 case SELECTOR_INVALID:
1893                         fail(rsp, "");
1894                         break;
1895         }
1896 }
1897
1898 void fail(FILE *rsp, char *fmt, ...)
1899 {
1900         fprintf(rsp, FAILURE_MESSAGE);
1901         va_list ap;
1902         va_start(ap, fmt);
1903         vfprintf(rsp, fmt, ap);
1904         va_end(ap);
1905 }