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 <errno.h>
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <string.h>
  29 #include "bspwm.h"
  30 #include "desktop.h"
  31 #include "ewmh.h"
  32 #include "history.h"
  33 #include "monitor.h"
  34 #include "pointer.h"
  35 #include "query.h"
  36 #include "rule.h"
  37 #include "restore.h"
  38 #include "settings.h"
  39 #include "tree.h"
  40 #include "window.h"
  41 #include "common.h"
  42 #include "subscribe.h"
  43 #include "messages.h"
  44
  45 int handle_message(char *msg, int msg_len, FILE *rsp)
  46 {
  47         int cap = INIT_CAP;
  48         int num = 0;
  49         char **args = malloc(cap * sizeof(char *));
  50         if (args == NULL)
  51                 return MSG_FAILURE;
  52
  53         for (int i = 0, j = 0; i < msg_len; i++) {
  54                 if (msg[i] == 0) {
  55                         args[num++] = msg + j;
  56                         j = i + 1;
  57                 }
  58                 if (num >= cap) {
  59                         cap *= 2;
  60                         char **new = realloc(args, cap * sizeof(char *));
  61                         if (new == NULL) {
  62                                 free(args);
  63                                 return MSG_FAILURE;
  64                         } else {
  65                                 args = new;
  66                         }
  67                 }
  68         }
  69
  70         if (num < 1) {
  71                 free(args);
  72                 return MSG_SYNTAX;
  73         }
  74
  75         char **args_orig = args;
  76         int ret = process_message(args, num, rsp);
  77         free(args_orig);
  78         return ret;
  79 }
  80
  81 int process_message(char **args, int num, FILE *rsp)
  82 {
  83         if (streq("window", *args)) {
  84                 return cmd_window(++args, --num);
  85         } else if (streq("desktop", *args)) {
  86                 return cmd_desktop(++args, --num);
  87         } else if (streq("monitor", *args)) {
  88                 return cmd_monitor(++args, --num);
  89         } else if (streq("query", *args)) {
  90                 return cmd_query(++args, --num, rsp);
  91         } else if (streq("restore", *args)) {
  92                 return cmd_restore(++args, --num);
  93         } else if (streq("control", *args)) {
  94                 return cmd_control(++args, --num, rsp);
  95         } else if (streq("rule", *args)) {
  96                 return cmd_rule(++args, --num, rsp);
  97         } else if (streq("pointer", *args)) {
  98                 return cmd_pointer(++args, --num);
  99         } else if (streq("config", *args)) {
 100                 return cmd_config(++args, --num, rsp);
 101         } else if (streq("quit", *args)) {
 102                 return cmd_quit(++args, --num);
 103         }
 104
 105         return MSG_UNKNOWN;
 106 }
 107
 108 int cmd_window(char **args, int num)
 109 {
 110         if (num < 1)
 111                 return MSG_SYNTAX;
 112
 113         coordinates_t ref = {mon, mon->desk, mon->desk->focus};
 114         coordinates_t trg = ref;
 115
 116         if ((*args)[0] != OPT_CHR) {
 117                 if (node_from_desc(*args, &ref, &trg))
 118                         num--, args++;
 119                 else
 120                         return MSG_FAILURE;
 121         }
 122
 123         if (trg.node == NULL)
 124                 return MSG_FAILURE;
 125
 126         bool dirty = false;
 127
 128         while (num > 0) {
 129                 if (streq("-f", *args) || streq("--focus", *args)) {
 130                         coordinates_t dst = trg;
 131                         if (num > 1 && *(args + 1)[0] != OPT_CHR) {
 132                                 num--, args++;
 133                                 if (!node_from_desc(*args, &trg, &dst))
 134                                         return MSG_FAILURE;
 135                         }
 136                         focus_node(dst.monitor, dst.desktop, dst.node);
 137                 } else if (streq("-d", *args) || streq("--to-desktop", *args)) {
 138                         num--, args++;
 139                         coordinates_t dst;
 140                         if (desktop_from_desc(*args, &trg, &dst)) {
 141                                 if (transfer_node(trg.monitor, trg.desktop, trg.node, dst.monitor, dst.desktop, dst.desktop->focus)) {
 142                                         trg.monitor = dst.monitor;
 143                                         trg.desktop = dst.desktop;
 144                                 }
 145                         } else {
 146                                 return MSG_FAILURE;
 147                         }
 148                 } else if (streq("-m", *args) || streq("--to-monitor", *args)) {
 149                         num--, args++;
 150                         if (num < 1)
 151                                 return MSG_SYNTAX;
 152                         coordinates_t dst;
 153                         if (monitor_from_desc(*args, &trg, &dst)) {
 154                                 if (transfer_node(trg.monitor, trg.desktop, trg.node, dst.monitor, dst.monitor->desk, dst.monitor->desk->focus)) {
 155                                         trg.monitor = dst.monitor;
 156                                         trg.desktop = dst.monitor->desk;
 157                                 }
 158                         } else {
 159                                 return MSG_FAILURE;
 160                         }
 161                 } else if (streq("-w", *args) || streq("--to-window", *args)) {
 162                         num--, args++;
 163                         if (num < 1)
 164                                 return MSG_SYNTAX;
 165                         coordinates_t dst;
 166                         if (node_from_desc(*args, &trg, &dst)) {
 167                                 if (transfer_node(trg.monitor, trg.desktop, trg.node, dst.monitor, dst.desktop, dst.node)) {
 168                                         trg.monitor = dst.monitor;
 169                                         trg.desktop = dst.desktop;
 170                                 }
 171                         } else {
 172                                 return MSG_FAILURE;
 173                         }
 174                 } else if (streq("-s", *args) || streq("--swap", *args)) {
 175                         num--, args++;
 176                         if (num < 1)
 177                                 return MSG_SYNTAX;
 178                         coordinates_t dst;
 179                         if (node_from_desc(*args, &trg, &dst)) {
 180                                 if (swap_nodes(trg.monitor, trg.desktop, trg.node, dst.monitor, dst.desktop, dst.node)) {
 181                                         if (trg.desktop != dst.desktop)
 182                                                 arrange(trg.monitor, trg.desktop);
 183                                         trg.monitor = dst.monitor;
 184                                         trg.desktop = dst.desktop;
 185                                         dirty = true;
 186                                 }
 187                         } else {
 188                                 return MSG_FAILURE;
 189                         }
 190                 } else if (streq("-t", *args) || streq("--toggle", *args)) {
 191                         num--, args++;
 192                         if (num < 1)
 193                                 return MSG_SYNTAX;
 194                         char *key = strtok(*args, EQL_TOK);
 195                         char *val = strtok(NULL, EQL_TOK);
 196                         alter_state_t a;
 197                         bool b;
 198                         if (val == NULL) {
 199                                 a = ALTER_TOGGLE;
 200                         } else {
 201                                 if (parse_bool(val, &b))
 202                                         a = ALTER_SET;
 203                                 else
 204                                         return MSG_FAILURE;
 205                         }
 206                         if (streq("fullscreen", key)) {
 207                                 set_fullscreen(trg.node, (a == ALTER_SET ? b : !trg.node->client->fullscreen));
 208                                 dirty = true;
 209                         } else if (streq("pseudo_tiled", key)) {
 210                                 set_pseudo_tiled(trg.node, (a == ALTER_SET ? b : !trg.node->client->pseudo_tiled));
 211                                 dirty = true;
 212                         } else if (streq("floating", key)) {
 213                                 set_floating(trg.node, (a == ALTER_SET ? b : !trg.node->client->floating));
 214                                 dirty = true;
 215                         } else if (streq("locked", key)) {
 216                                 set_locked(trg.monitor, trg.desktop, trg.node, (a == ALTER_SET ? b : !trg.node->client->locked));
 217                         } else if (streq("sticky", key)) {
 218                                 set_sticky(trg.monitor, trg.desktop, trg.node, (a == ALTER_SET ? b : !trg.node->client->sticky));
 219                         } else if (streq("private", key)) {
 220                                 set_private(trg.monitor, trg.desktop, trg.node, (a == ALTER_SET ? b : !trg.node->client->private));
 221                         } else {
 222                                 return MSG_FAILURE;
 223                         }
 224                 } else if (streq("-p", *args) || streq("--presel", *args)) {
 225                         num--, args++;
 226                         if (num < 1)
 227                                 return MSG_SYNTAX;
 228                         if (!is_tiled(trg.node->client) ||
 229                             trg.desktop->layout != LAYOUT_TILED)
 230                                 return MSG_FAILURE;
 231                         if (streq("cancel", *args)) {
 232                                 reset_mode(&trg);
 233                         } else {
 234                                 direction_t dir;
 235                                 if (parse_direction(*args, &dir)) {
 236                                         double rat = trg.node->split_ratio;
 237                                         if (num > 1 && *(args + 1)[0] != OPT_CHR) {
 238                                                 num--, args++;
 239                                                 if (sscanf(*args, "%lf", &rat) != 1 || rat <= 0 || rat >= 1)
 240                                                         return MSG_FAILURE;
 241                                         }
 242                                         if (auto_cancel && trg.node->split_mode == MODE_MANUAL &&
 243                                             dir == trg.node->split_dir &&
 244                                             rat == trg.node->split_ratio) {
 245                                                 reset_mode(&trg);
 246                                         } else {
 247                                                 trg.node->split_mode = MODE_MANUAL;
 248                                                 trg.node->split_dir = dir;
 249                                                 trg.node->split_ratio = rat;
 250                                         }
 251                                         window_draw_border(trg.node, trg.desktop->focus == trg.node, mon == trg.monitor);
 252                                 } else {
 253                                         return MSG_FAILURE;
 254                                 }
 255                         }
 256                 } else if (streq("-e", *args) || streq("--edge", *args)) {
 257                         num--, args++;
 258                         if (num < 2)
 259                                 return MSG_SYNTAX;
 260                         if (!is_tiled(trg.node->client))
 261                                 return MSG_FAILURE;
 262                         direction_t dir;
 263                         if (!parse_direction(*args, &dir))
 264                                 return MSG_FAILURE;
 265                         node_t *n = find_fence(trg.node, dir);
 266                         if (n == NULL)
 267                                 return MSG_FAILURE;
 268                         num--, args++;
 269                         if ((*args)[0] == '+' || (*args)[0] == '-') {
 270                                 int pix;
 271                                 if (sscanf(*args, "%i", &pix) == 1) {
 272                                         int max = (n->split_type == TYPE_HORIZONTAL ? n->rectangle.height : n->rectangle.width);
 273                                         double rat = ((max * n->split_ratio) + pix) / max;
 274                                         if (rat > 0 && rat < 1)
 275                                                 n->split_ratio = rat;
 276                                         else
 277                                                 return MSG_FAILURE;
 278                                 } else {
 279                                         return MSG_FAILURE;
 280                                 }
 281                         } else {
 282                                 double rat;
 283                                 if (sscanf(*args, "%lf", &rat) == 1 && rat > 0 && rat < 1)
 284                                         n->split_ratio = rat;
 285                                 else
 286                                         return MSG_FAILURE;
 287                         }
 288                         dirty = true;
 289                 } else if (streq("-r", *args) || streq("--ratio", *args)) {
 290                         num--, args++;
 291                         if (num < 1)
 292                                 return MSG_SYNTAX;
 293                         double rat;
 294                         if (sscanf(*args, "%lf", &rat) == 1 && rat > 0 && rat < 1) {
 295                                 trg.node->split_ratio = rat;
 296                                 window_draw_border(trg.node, trg.desktop->focus == trg.node, mon == trg.monitor);
 297                         } else {
 298                                 return MSG_FAILURE;
 299                         }
 300                 } else if (streq("-R", *args) || streq("--rotate", *args)) {
 301                         num--, args++;
 302                         if (num < 2)
 303                                 return MSG_SYNTAX;
 304                         direction_t dir;
 305                         if (!parse_direction(*args, &dir))
 306                                 return MSG_FAILURE;
 307                         node_t *n = find_fence(trg.node, dir);
 308                         if (n == NULL)
 309                                 return MSG_FAILURE;
 310                         num--, args++;
 311                         int deg;
 312                         if (parse_degree(*args, &deg)) {
 313                                 rotate_tree(n, deg);
 314                                 dirty = true;
 315                         } else {
 316                                 return MSG_FAILURE;
 317                         }
 318                 } else if (streq("-c", *args) || streq("--close", *args)) {
 319                         if (num > 1)
 320                                 return MSG_SYNTAX;
 321                         window_close(trg.node);
 322                 } else if (streq("-k", *args) || streq("--kill", *args)) {
 323                         if (num > 1)
 324                                 return MSG_SYNTAX;
 325                         window_kill(trg.monitor, trg.desktop, trg.node);
 326                         dirty = true;
 327                 } else {
 328                         return MSG_SYNTAX;
 329                 }
 330
 331                 num--, args++;
 332         }
 333
 334         if (dirty)
 335                 arrange(trg.monitor, trg.desktop);
 336
 337         return MSG_SUCCESS;
 338 }
 339
 340 int cmd_desktop(char **args, int num)
 341 {
 342         if (num < 1)
 343                 return MSG_SYNTAX;
 344
 345         coordinates_t ref = {mon, mon->desk, NULL};
 346         coordinates_t trg = ref;
 347
 348         if ((*args)[0] != OPT_CHR) {
 349                 if (desktop_from_desc(*args, &ref, &trg))
 350                         num--, args++;
 351                 else
 352                         return MSG_FAILURE;
 353         }
 354
 355         bool dirty = false;
 356
 357         while (num > 0) {
 358                 if (streq("-f", *args) || streq("--focus", *args)) {
 359                         coordinates_t dst = trg;
 360                         if (num > 1 && *(args + 1)[0] != OPT_CHR) {
 361                                 num--, args++;
 362                                 if (!desktop_from_desc(*args, &trg, &dst))
 363                                         return MSG_FAILURE;
 364                         }
 365                         if (auto_alternate && dst.desktop == mon->desk) {
 366                                 desktop_select_t sel = {DESKTOP_STATUS_ALL, false, false};
 367                                 history_find_desktop(HISTORY_OLDER, &trg, &dst, sel);
 368                         }
 369                         focus_node(dst.monitor, dst.desktop, dst.desktop->focus);
 370                 } else if (streq("-m", *args) || streq("--to-monitor", *args)) {
 371                         num--, args++;
 372                         if (num < 1)
 373                                 return MSG_SYNTAX;
 374                         if (trg.monitor->desk_head == trg.monitor->desk_tail)
 375                                 return MSG_FAILURE;
 376                         coordinates_t dst;
 377                         if (monitor_from_desc(*args, &trg, &dst)) {
 378                                 transfer_desktop(trg.monitor, dst.monitor, trg.desktop);
 379                                 trg.monitor = dst.monitor;
 380                                 update_current();
 381                         } else {
 382                                 return MSG_FAILURE;
 383                         }
 384                 } else if (streq("-s", *args) || streq("--swap", *args)) {
 385                         num--, args++;
 386                         if (num < 1)
 387                                 return MSG_SYNTAX;
 388                         coordinates_t dst;
 389                         if (desktop_from_desc(*args, &trg, &dst))
 390                                 swap_desktops(trg.monitor, trg.desktop, dst.monitor, dst.desktop);
 391                         else
 392                                 return MSG_FAILURE;
 393                 } else if (streq("-b", *args) || streq("--bubble", *args)) {
 394                         num--, args++;
 395                         if (num < 1)
 396                                 return MSG_SYNTAX;
 397                         cycle_dir_t cyc;
 398                         if (parse_cycle_direction(*args, &cyc)) {
 399                                 desktop_t *d = trg.desktop;
 400                                 if (cyc == CYCLE_PREV) {
 401                                         if (d->prev == NULL) {
 402                                                 while (d->next != NULL) {
 403                                                         swap_desktops(trg.monitor, d, trg.monitor, d->next);
 404                                                 }
 405                                         } else {
 406                                                 swap_desktops(trg.monitor, d, trg.monitor, d->prev);
 407                                         }
 408                                 } else {
 409                                         if (d->next == NULL) {
 410                                                 while (d->prev != NULL) {
 411                                                         swap_desktops(trg.monitor, d, trg.monitor, d->prev);
 412                                                 }
 413                                         } else {
 414                                                 swap_desktops(trg.monitor, d, trg.monitor, d->next);
 415                                         }
 416                                 }
 417                         } else {
 418                                 return MSG_FAILURE;
 419                         }
 420                 } else if (streq("-l", *args) || streq("--layout", *args)) {
 421                         num--, args++;
 422                         if (num < 1)
 423                                 return MSG_SYNTAX;
 424                         layout_t lyt;
 425                         cycle_dir_t cyc;
 426                         if (parse_cycle_direction(*args, &cyc))
 427                                 change_layout(trg.monitor, trg.desktop, (trg.desktop->layout + 1) % 2);
 428                         else if (parse_layout(*args, &lyt))
 429                                 change_layout(trg.monitor, trg.desktop, lyt);
 430                         else
 431                                 return MSG_FAILURE;
 432                 } else if (streq("-n", *args) || streq("--rename", *args)) {
 433                         num--, args++;
 434                         if (num < 1)
 435                                 return MSG_SYNTAX;
 436                         put_status(SBSC_MASK_DESKTOP_RENAME, "desktop_rename %s %s\n", trg.desktop->name, *args);
 437                         snprintf(trg.desktop->name, sizeof(trg.desktop->name), "%s", *args);
 438                         ewmh_update_desktop_names();
 439                         put_status(SBSC_MASK_REPORT);
 440                 } else if (streq("-r", *args) || streq("--remove", *args)) {
 441                         if (trg.desktop->root == NULL &&
 442                             trg.monitor->desk_head != trg.monitor->desk_tail) {
 443                                 remove_desktop(trg.monitor, trg.desktop);
 444                                 show_desktop(trg.monitor->desk);
 445                                 update_current();
 446                                 return MSG_SUCCESS;
 447                         } else {
 448                                 return MSG_FAILURE;
 449                         }
 450                 } else if (streq("-c", *args) || streq("--cancel-presel", *args)) {
 451                         reset_mode(&trg);
 452                 } else if (streq("-F", *args) || streq("--flip", *args)) {
 453                         num--, args++;
 454                         if (num < 1)
 455                                 return MSG_SYNTAX;
 456                         flip_t flp;
 457                         if (parse_flip(*args, &flp)) {
 458                                 flip_tree(trg.desktop->root, flp);
 459                                 dirty = true;
 460                         } else {
 461                                 return MSG_FAILURE;
 462                         }
 463                 } else if (streq("-R", *args) || streq("--rotate", *args)) {
 464                         num--, args++;
 465                         if (num < 1)
 466                                 return MSG_SYNTAX;
 467                         int deg;
 468                         if (parse_degree(*args, &deg)) {
 469                                 rotate_tree(trg.desktop->root, deg);
 470                                 dirty = true;
 471                         } else {
 472                                 return MSG_FAILURE;
 473                         }
 474                 } else if (streq("-E", *args) || streq("--equalize", *args)) {
 475                         equalize_tree(trg.desktop->root);
 476                         dirty = true;
 477                 } else if (streq("-B", *args) || streq("--balance", *args)) {
 478                         balance_tree(trg.desktop->root);
 479                         dirty = true;
 480                 } else if (streq("-C", *args) || streq("--circulate", *args)) {
 481                         num--, args++;
 482                         if (num < 1)
 483                                 return MSG_SYNTAX;
 484                         circulate_dir_t cir;
 485                         if (parse_circulate_direction(*args, &cir)) {
 486                                 circulate_leaves(trg.monitor, trg.desktop, cir);
 487                                 dirty = true;
 488                         } else {
 489                                 return MSG_FAILURE;
 490                         }
 491                 } else if (streq("-t", *args) || streq("--toggle", *args)) {
 492                         num--, args++;
 493                         if (num < 1)
 494                                 return MSG_SYNTAX;
 495                         char *key = strtok(*args, EQL_TOK);
 496                         char *val = strtok(NULL, EQL_TOK);
 497                         alter_state_t a;
 498                         bool b;
 499                         if (val == NULL) {
 500                                 a = ALTER_TOGGLE;
 501                         } else {
 502                                 if (parse_bool(val, &b))
 503                                         a = ALTER_SET;
 504                                 else
 505                                         return MSG_FAILURE;
 506                         }
 507                         if (streq("floating", key))
 508                                 trg.desktop->floating = (a == ALTER_SET ? b : !trg.desktop->floating);
 509                         else
 510                                 return MSG_FAILURE;
 511                 } else {
 512                         return MSG_SYNTAX;
 513                 }
 514                 num--, args++;
 515         }
 516
 517         if (dirty)
 518                 arrange(trg.monitor, trg.desktop);
 519
 520         return MSG_SUCCESS;
 521 }
 522
 523 int cmd_monitor(char **args, int num)
 524 {
 525         if (num < 1)
 526                 return MSG_SYNTAX;
 527
 528         coordinates_t ref = {mon, NULL, NULL};
 529         coordinates_t trg = ref;
 530
 531         if ((*args)[0] != OPT_CHR) {
 532                 if (monitor_from_desc(*args, &ref, &trg))
 533                         num--, args++;
 534                 else
 535                         return MSG_FAILURE;
 536         }
 537
 538         while (num > 0) {
 539                 if (streq("-f", *args) || streq("--focus", *args)) {
 540                         coordinates_t dst = trg;
 541                         if (num > 1 && *(args + 1)[0] != OPT_CHR) {
 542                                 num--, args++;
 543                                 if (!monitor_from_desc(*args, &trg, &dst))
 544                                         return MSG_FAILURE;
 545                         }
 546                         if (auto_alternate && dst.monitor == mon) {
 547                                 desktop_select_t sel = {DESKTOP_STATUS_ALL, false, false};
 548                                 history_find_monitor(HISTORY_OLDER, &trg, &dst, sel);
 549                         }
 550                         focus_node(dst.monitor, dst.monitor->desk, dst.monitor->desk->focus);
 551                 } else if (streq("-d", *args) || streq("--reset-desktops", *args)) {
 552                         num--, args++;
 553                         if (num < 1)
 554                                 return MSG_SYNTAX;
 555                         desktop_t *d = trg.monitor->desk_head;
 556                         while (num > 0 && d != NULL) {
 557                                 snprintf(d->name, sizeof(d->name), "%s", *args);
 558                                 initialize_desktop(d);
 559                                 arrange(trg.monitor, d);
 560                                 d = d->next;
 561                                 num--, args++;
 562                         }
 563                         put_status(SBSC_MASK_REPORT);
 564                         while (num > 0) {
 565                                 add_desktop(trg.monitor, make_desktop(*args));
 566                                 num--, args++;
 567                         }
 568                         while (d != NULL) {
 569                                 desktop_t *next = d->next;
 570                                 if (d == mon->desk)
 571                                         focus_node(trg.monitor, d->prev, d->prev->focus);
 572                                 merge_desktops(trg.monitor, d, mon, mon->desk);
 573                                 remove_desktop(trg.monitor, d);
 574                                 d = next;
 575                         }
 576                 } else if (streq("-a", *args) || streq("--add-desktops", *args)) {
 577                         num--, args++;
 578                         if (num < 1)
 579                                 return MSG_SYNTAX;
 580                         while (num > 0) {
 581                                 add_desktop(trg.monitor, make_desktop(*args));
 582                                 num--, args++;
 583                         }
 584                 } else if (streq("-r", *args) || streq("--remove-desktops", *args)) {
 585                         num--, args++;
 586                         if (num < 1)
 587                                 return MSG_SYNTAX;
 588                         while (num > 0) {
 589                                 coordinates_t dst;
 590                                 if (locate_desktop(*args, &dst) && dst.monitor->desk_head != dst.monitor->desk_tail && dst.desktop->root == NULL) {
 591                                         remove_desktop(dst.monitor, dst.desktop);
 592                                         show_desktop(dst.monitor->desk);
 593                                 }
 594                                 num--, args++;
 595                         }
 596                 } else if (streq("-o", *args) || streq("--order-desktops", *args)) {
 597                         num--, args++;
 598                         if (num < 1)
 599                                 return MSG_SYNTAX;
 600                         desktop_t *d = trg.monitor->desk_head;
 601                         while (d != NULL && num > 0) {
 602                                 desktop_t *next = d->next;
 603                                 coordinates_t dst;
 604                                 if (locate_desktop(*args, &dst) && dst.monitor == trg.monitor) {
 605                                         swap_desktops(trg.monitor, d, dst.monitor, dst.desktop);
 606                                         if (next == dst.desktop)
 607                                                 next = d;
 608                                 }
 609                                 d = next;
 610                                 num--, args++;
 611                         }
 612                 } else if (streq("-n", *args) || streq("--rename", *args)) {
 613                         num--, args++;
 614                         if (num < 1)
 615                                 return MSG_SYNTAX;
 616                         put_status(SBSC_MASK_MONITOR_RENAME, "monitor_rename %s %s\n", trg.monitor->name, *args);
 617                         snprintf(trg.monitor->name, sizeof(trg.monitor->name), "%s", *args);
 618                         put_status(SBSC_MASK_REPORT);
 619                 } else if (streq("-s", *args) || streq("--swap", *args)) {
 620                         num--, args++;
 621                         if (num < 1)
 622                                 return MSG_SYNTAX;
 623                         coordinates_t dst;
 624                         if (monitor_from_desc(*args, &trg, &dst))
 625                                 swap_monitors(trg.monitor, dst.monitor);
 626                         else
 627                                 return MSG_FAILURE;
 628                 } else {
 629                         return MSG_SYNTAX;
 630                 }
 631                 num--, args++;
 632         }
 633
 634         return MSG_SUCCESS;
 635 }
 636
 637 int cmd_query(char **args, int num, FILE *rsp)
 638 {
 639         coordinates_t ref = {mon, mon->desk, mon->desk->focus};
 640         coordinates_t trg = {NULL, NULL, NULL};
 641         domain_t dom = DOMAIN_TREE;
 642         int d = 0, t = 0;
 643
 644         while (num > 0) {
 645                 if (streq("-T", *args) || streq("--tree", *args)) {
 646                         dom = DOMAIN_TREE, d++;
 647                 } else if (streq("-M", *args) || streq("--monitors", *args)) {
 648                         dom = DOMAIN_MONITOR, d++;
 649                 } else if (streq("-D", *args) || streq("--desktops", *args)) {
 650                         dom = DOMAIN_DESKTOP, d++;
 651                 } else if (streq("-W", *args) || streq("--windows", *args)) {
 652                         dom = DOMAIN_WINDOW, d++;
 653                 } else if (streq("-H", *args) || streq("--history", *args)) {
 654                         dom = DOMAIN_HISTORY, d++;
 655                 } else if (streq("-S", *args) || streq("--stack", *args)) {
 656                         dom = DOMAIN_STACK, d++;
 657                 } else if (streq("-m", *args) || streq("--monitor", *args)) {
 658                         trg.monitor = ref.monitor;
 659                         if (num > 1 && *(args + 1)[0] != OPT_CHR) {
 660                                 num--, args++;
 661                                 if (!monitor_from_desc(*args, &ref, &trg))
 662                                         return MSG_FAILURE;
 663                         }
 664                         t++;
 665                 } else if (streq("-d", *args) || streq("--desktop", *args)) {
 666                         trg.monitor = ref.monitor;
 667                         trg.desktop = ref.desktop;
 668                         if (num > 1 && *(args + 1)[0] != OPT_CHR) {
 669                                 num--, args++;
 670                                 if (!desktop_from_desc(*args, &ref, &trg))
 671                                         return MSG_FAILURE;
 672                         }
 673                         t++;
 674                 } else if (streq("-w", *args) || streq("--window", *args)) {
 675                         trg = ref;
 676                         if (num > 1 && *(args + 1)[0] != OPT_CHR) {
 677                                 num--, args++;
 678                                 if (!node_from_desc(*args, &ref, &trg))
 679                                         return MSG_FAILURE;
 680                         }
 681                         t++;
 682                 } else {
 683                         return MSG_SYNTAX;
 684                 }
 685                 num--, args++;
 686         }
 687
 688         if (d != 1 || t > 1)
 689                 return MSG_SYNTAX;
 690
 691         if (dom == DOMAIN_HISTORY)
 692                 query_history(trg, rsp);
 693         else if (dom == DOMAIN_STACK)
 694                 query_stack(rsp);
 695         else if (dom == DOMAIN_WINDOW)
 696                 query_windows(trg, rsp);
 697         else
 698                 query_monitors(trg, dom, rsp);
 699
 700         return MSG_SUCCESS;
 701 }
 702
 703 int cmd_rule(char **args, int num, FILE *rsp)
 704 {
 705         if (num < 1)
 706                 return MSG_SYNTAX;
 707         while (num > 0) {
 708                 if (streq("-a", *args) || streq("--add", *args)) {
 709                         num--, args++;
 710                         if (num < 2)
 711                                 return MSG_SYNTAX;
 712                         rule_t *rule = make_rule();
 713                         snprintf(rule->cause, sizeof(rule->cause), "%s", *args);
 714                         num--, args++;
 715                         size_t i = 0;
 716                         while (num > 0) {
 717                                 if (streq("-o", *args) || streq("--one-shot", *args)) {
 718                                         rule->one_shot = true;
 719                                 } else {
 720                                         for (size_t j = 0; i < sizeof(rule->effect) && j < strlen(*args); i++, j++)
 721                                                 rule->effect[i] = (*args)[j];
 722                                         if (num > 1 && i < sizeof(rule->effect))
 723                                                 rule->effect[i++] = ' ';
 724                                 }
 725                                 num--, args++;
 726                         }
 727                         rule->effect[MIN(i, sizeof(rule->effect) - 1)] = '\0';
 728                         add_rule(rule);
 729                 } else if (streq("-r", *args) || streq("--remove", *args)) {
 730                         num--, args++;
 731                         if (num < 1)
 732                                 return MSG_SYNTAX;
 733                         int idx;
 734                         while (num > 0) {
 735                                 if (parse_index(*args, &idx))
 736                                         remove_rule_by_index(idx - 1);
 737                                 else if (streq("tail", *args))
 738                                         remove_rule(rule_tail);
 739                                 else if (streq("head", *args))
 740                                         remove_rule(rule_head);
 741                                 else
 742                                         remove_rule_by_cause(*args);
 743                                 num--, args++;
 744                         }
 745                 } else if (streq("-l", *args) || streq("--list", *args)) {
 746                         num--, args++;
 747                         list_rules(num > 0 ? *args : NULL, rsp);
 748                 } else {
 749                         return MSG_SYNTAX;
 750                 }
 751                 num--, args++;
 752         }
 753
 754         return MSG_SUCCESS;
 755 }
 756
 757 int cmd_pointer(char **args, int num)
 758 {
 759         if (num < 1)
 760                 return MSG_SYNTAX;
 761         while (num > 0) {
 762                 if (streq("-t", *args) || streq("--track", *args)) {
 763                         num--, args++;
 764                         if (num < 2)
 765                                 return MSG_SYNTAX;
 766                         int x, y;
 767                         if (sscanf(*args, "%i", &x) == 1 && sscanf(*(args + 1), "%i", &y) == 1)
 768                                 track_pointer(x, y);
 769                         else
 770                                 return MSG_FAILURE;
 771                         num--, args++;
 772                 } else if (streq("-g", *args) || streq("--grab", *args)) {
 773                         num--, args++;
 774                         if (num < 1)
 775                                 return MSG_SYNTAX;
 776                         pointer_action_t pac;
 777                         if (parse_pointer_action(*args, &pac))
 778                                 grab_pointer(pac);
 779                         else
 780                                 return MSG_FAILURE;
 781                 } else if (streq("-u", *args) || streq("--ungrab", *args)) {
 782                         ungrab_pointer();
 783                 } else {
 784                         return MSG_SYNTAX;
 785                 }
 786                 num--, args++;
 787         }
 788
 789         return MSG_SUCCESS;
 790 }
 791
 792 int cmd_restore(char **args, int num)
 793 {
 794         if (num < 1)
 795                 return MSG_SYNTAX;
 796         while (num > 0) {
 797                 if (streq("-T", *args) || streq("--tree", *args)) {
 798                         num--, args++;
 799                         if (num < 1)
 800                                 return MSG_SYNTAX;
 801                         restore_tree(*args);
 802                 } else if (streq("-H", *args) || streq("--history", *args)) {
 803                         num--, args++;
 804                         if (num < 1)
 805                                 return MSG_SYNTAX;
 806                         restore_history(*args);
 807                 } else if (streq("-S", *args) || streq("--stack", *args)) {
 808                         num--, args++;
 809                         if (num < 1)
 810                                 return MSG_SYNTAX;
 811                         restore_stack(*args);
 812                 } else {
 813                         return MSG_SYNTAX;
 814                 }
 815                 num--, args++;
 816         }
 817
 818         return MSG_SUCCESS;
 819 }
 820
 821 int cmd_control(char **args, int num, FILE *rsp)
 822 {
 823         if (num < 1)
 824                 return MSG_SYNTAX;
 825         while (num > 0) {
 826                 if (streq("--adopt-orphans", *args)) {
 827                         adopt_orphans();
 828                 } else if (streq("--toggle-visibility", *args)) {
 829                         toggle_visibility();
 830                 } else if (streq("--subscribe", *args)) {
 831                         num--, args++;
 832                         int field = 0;
 833                         if (num < 1) {
 834                                 field = SBSC_MASK_REPORT;
 835                         } else {
 836                                 subscriber_mask_t mask;
 837                                 while (num > 0) {
 838                                         if (parse_subscriber_mask(*args, &mask)) {
 839                                                 field |= mask;
 840                                         } else {
 841                                                 return MSG_SYNTAX;
 842                                         }
 843                                         num--, args++;
 844                                 }
 845                         }
 846                         add_subscriber(rsp, field);
 847                         return MSG_SUBSCRIBE;
 848                 } else if (streq("--get-status", *args)) {
 849                         print_report(rsp);
 850                 } else if (streq("--record-history", *args)) {
 851                         num--, args++;
 852                         if (num < 1)
 853                                 return MSG_SYNTAX;
 854                         bool b;
 855                         if (parse_bool(*args, &b))
 856                                 record_history = b;
 857                         else
 858                                 return MSG_SYNTAX;
 859                 } else {
 860                         return MSG_SYNTAX;
 861                 }
 862                 num--, args++;
 863         }
 864
 865         return MSG_SUCCESS;
 866 }
 867
 868 int cmd_config(char **args, int num, FILE *rsp)
 869 {
 870         if (num < 1)
 871                 return MSG_SYNTAX;
 872         coordinates_t ref = {mon, mon->desk, mon->desk->focus};
 873         coordinates_t trg = {NULL, NULL, NULL};
 874         if ((*args)[0] == OPT_CHR) {
 875                 if (streq("-m", *args) || streq("--monitor", *args)) {
 876                         num--, args++;
 877                         if (num < 1)
 878                                 return MSG_SYNTAX;
 879                         if (!monitor_from_desc(*args, &ref, &trg))
 880                                 return MSG_FAILURE;
 881                 } else if (streq("-d", *args) || streq("--desktop", *args)) {
 882                         num--, args++;
 883                         if (num < 1)
 884                                 return MSG_SYNTAX;
 885                         if (!desktop_from_desc(*args, &ref, &trg))
 886                                 return MSG_FAILURE;
 887                 } else if (streq("-w", *args) || streq("--window", *args)) {
 888                         num--, args++;
 889                         if (num < 1)
 890                                 return MSG_SYNTAX;
 891                         if (!node_from_desc(*args, &ref, &trg))
 892                                 return MSG_FAILURE;
 893                 } else {
 894                         return MSG_SYNTAX;
 895                 }
 896                 num--, args++;
 897         }
 898         if (num == 2)
 899                 return set_setting(trg, *args, *(args + 1));
 900         else if (num == 1)
 901                 return get_setting(trg, *args, rsp);
 902         else
 903                 return MSG_SYNTAX;
 904 }
 905
 906 int cmd_quit(char **args, int num)
 907 {
 908         if (num > 0 && sscanf(*args, "%i", &exit_status) != 1)
 909                 return MSG_FAILURE;
 910         running = false;
 911         return MSG_SUCCESS;
 912 }
 913
 914 int set_setting(coordinates_t loc, char *name, char *value)
 915 {
 916 #define DESKWINDEFSET(k, v) \
 917                 if (loc.node != NULL) \
 918                         loc.node->client->k = v; \
 919                 else if (loc.desktop != NULL) \
 920                         loc.desktop->k = v; \
 921                 else if (loc.monitor != NULL) \
 922                         for (desktop_t *d = loc.monitor->desk_head; d != NULL; d = d->next) \
 923                                 d->k = v; \
 924                 else \
 925                         k = v;
 926         if (streq("border_width", name)) {
 927                 unsigned int bw;
 928                 if (sscanf(value, "%u", &bw) != 1)
 929                         return MSG_FAILURE;
 930                 DESKWINDEFSET(border_width, bw)
 931 #undef DESKWINDEFSET
 932 #define DESKDEFSET(k, v) \
 933                 if (loc.desktop != NULL) \
 934                         loc.desktop->k = v; \
 935                 else if (loc.monitor != NULL) \
 936                         for (desktop_t *d = loc.monitor->desk_head; d != NULL; d = d->next) \
 937                                 d->k = v; \
 938                 else \
 939                         k = v;
 940         } else if (streq("window_gap", name)) {
 941                 int wg;
 942                 if (sscanf(value, "%i", &wg) != 1)
 943                         return MSG_FAILURE;
 944                 DESKDEFSET(window_gap, wg)
 945 #undef DESKDEFSET
 946 #define MONDESKSET(k, v) \
 947                 if (loc.desktop != NULL) \
 948                         loc.desktop->k = v; \
 949                 else if (loc.monitor != NULL) \
 950                         loc.monitor->k = v; \
 951                 else \
 952                         for (monitor_t *m = mon_head; m != NULL; m = m->next) \
 953                                 m->k = v;
 954         } else if (streq("top_padding", name)) {
 955                 int tp;
 956                 if (sscanf(value, "%i", &tp) != 1)
 957                         return MSG_FAILURE;
 958                 MONDESKSET(top_padding, tp)
 959         } else if (streq("right_padding", name)) {
 960                 int rp;
 961                 if (sscanf(value, "%i", &rp) != 1)
 962                         return MSG_FAILURE;
 963                 MONDESKSET(right_padding, rp)
 964         } else if (streq("bottom_padding", name)) {
 965                 int bp;
 966                 if (sscanf(value, "%i", &bp) != 1)
 967                         return MSG_FAILURE;
 968                 MONDESKSET(bottom_padding, bp)
 969         } else if (streq("left_padding", name)) {
 970                 int lp;
 971                 if (sscanf(value, "%i", &lp) != 1)
 972                         return MSG_FAILURE;
 973                 MONDESKSET(left_padding, lp)
 974 #undef MONDESKSET
 975 #define SETSTR(s) \
 976         } else if (streq(#s, name)) { \
 977                 return snprintf(s, sizeof(s), "%s", value) >= 0;
 978         SETSTR(external_rules_command)
 979         SETSTR(status_prefix)
 980 #undef SETSTR
 981         } else if (streq("split_ratio", name)) {
 982                 double r;
 983                 if (sscanf(value, "%lf", &r) == 1 && r > 0 && r < 1)
 984                         split_ratio = r;
 985                 else
 986                         return MSG_FAILURE;
 987                 return MSG_SUCCESS;
 988 #define SETCOLOR(s) \
 989         } else if (streq(#s, name)) { \
 990                 snprintf(s, sizeof(s), "%s", value);
 991         SETCOLOR(focused_border_color)
 992         SETCOLOR(active_border_color)
 993         SETCOLOR(normal_border_color)
 994         SETCOLOR(presel_border_color)
 995         SETCOLOR(focused_locked_border_color)
 996         SETCOLOR(active_locked_border_color)
 997         SETCOLOR(normal_locked_border_color)
 998         SETCOLOR(focused_sticky_border_color)
 999         SETCOLOR(active_sticky_border_color)
1000         SETCOLOR(normal_sticky_border_color)
1001         SETCOLOR(focused_private_border_color)
1002         SETCOLOR(active_private_border_color)
1003         SETCOLOR(normal_private_border_color)
1004         SETCOLOR(urgent_border_color)
1005 #undef SETCOLOR
1006         } else if (streq("initial_polarity", name)) {
1007                 child_polarity_t p;
1008                 if (parse_child_polarity(value, &p)) {
1009                         initial_polarity = p;
1010                 } else {
1011                         return MSG_FAILURE;
1012                 }
1013         } else if (streq("focus_follows_pointer", name)) {
1014                 bool b;
1015                 if (parse_bool(value, &b) && b != focus_follows_pointer) {
1016                         focus_follows_pointer = b;
1017                         for (monitor_t *m = mon_head; m != NULL; m = m->next)
1018                                 for (desktop_t *d = m->desk_head; d != NULL; d = d->next)
1019                                         for (node_t *n = first_extrema(d->root); n != NULL; n = next_leaf(n, d->root)) {
1020                                                 uint32_t values[] = {CLIENT_EVENT_MASK | (focus_follows_pointer ? XCB_EVENT_MASK_ENTER_WINDOW : 0)};
1021                                                 xcb_change_window_attributes(dpy, n->client->window, XCB_CW_EVENT_MASK, values);
1022                                         }
1023                         if (focus_follows_pointer) {
1024                                 for (monitor_t *m = mon_head; m != NULL; m = m->next)
1025                                         window_show(m->root);
1026                                 enable_motion_recorder();
1027                         } else {
1028                                 for (monitor_t *m = mon_head; m != NULL; m = m->next)
1029                                         window_hide(m->root);
1030                                 disable_motion_recorder();
1031                         }
1032                         return MSG_SUCCESS;
1033                 } else {
1034                         return MSG_FAILURE;
1035                 }
1036 #define SETBOOL(s) \
1037         } else if (streq(#s, name)) { \
1038                 if (!parse_bool(value, &s)) \
1039                         return MSG_FAILURE;
1040                 SETBOOL(borderless_monocle)
1041                 SETBOOL(gapless_monocle)
1042                 SETBOOL(pointer_follows_focus)
1043                 SETBOOL(pointer_follows_monitor)
1044                 SETBOOL(apply_floating_atom)
1045                 SETBOOL(auto_alternate)
1046                 SETBOOL(auto_cancel)
1047                 SETBOOL(history_aware_focus)
1048                 SETBOOL(focus_by_distance)
1049                 SETBOOL(ignore_ewmh_focus)
1050                 SETBOOL(center_pseudo_tiled)
1051 #undef SETBOOL
1052 #define SETMONBOOL(s) \
1053         } else if (streq(#s, name)) { \
1054                 if (!parse_bool(value, &s)) \
1055                         return MSG_FAILURE; \
1056                 if (s) \
1057                         update_monitors();
1058                 SETMONBOOL(remove_disabled_monitors)
1059                 SETMONBOOL(remove_unplugged_monitors)
1060                 SETMONBOOL(merge_overlapping_monitors)
1061 #undef SETMONBOOL
1062         } else {
1063                 return MSG_FAILURE;
1064         }
1065
1066         for (monitor_t *m = mon_head; m != NULL; m = m->next)
1067                 for (desktop_t *d = m->desk_head; d != NULL; d = d->next)
1068                         arrange(m, d);
1069
1070         return MSG_SUCCESS;
1071 }
1072
1073 int get_setting(coordinates_t loc, char *name, FILE* rsp)
1074 {
1075         if (streq("split_ratio", name))
1076                 fprintf(rsp, "%lf", split_ratio);
1077         else if (streq("window_gap", name))
1078                 if (loc.desktop != NULL)
1079                         fprintf(rsp, "%i", loc.desktop->window_gap);
1080                 else
1081                         fprintf(rsp, "%i", window_gap);
1082         else if (streq("border_width", name))
1083                 if (loc.node != NULL)
1084                         fprintf(rsp, "%u", loc.node->client->border_width);
1085                 else if (loc.desktop != NULL)
1086                         fprintf(rsp, "%u", loc.desktop->border_width);
1087                 else
1088                         fprintf(rsp, "%u", border_width);
1089         else if (streq("external_rules_command", name))
1090                 fprintf(rsp, "%s", external_rules_command);
1091         else if (streq("status_prefix", name))
1092                 fprintf(rsp, "%s", status_prefix);
1093         else if (streq("initial_polarity", name))
1094                 fprintf(rsp, "%s", initial_polarity == FIRST_CHILD ? "first_child" : "second_child");
1095 #define MONDESKGET(k) \
1096         else if (streq(#k, name)) \
1097                 if (loc.desktop != NULL) \
1098                         fprintf(rsp, "%i", loc.desktop->k); \
1099                 else if (loc.monitor != NULL) \
1100                         fprintf(rsp, "%i", loc.monitor->k); \
1101                 else \
1102                         return MSG_FAILURE;
1103         MONDESKGET(top_padding)
1104         MONDESKGET(right_padding)
1105         MONDESKGET(bottom_padding)
1106         MONDESKGET(left_padding)
1107 #undef DESKGET
1108 #define GETCOLOR(s) \
1109         else if (streq(#s, name)) \
1110                 fprintf(rsp, "%s", s);
1111         GETCOLOR(focused_border_color)
1112         GETCOLOR(active_border_color)
1113         GETCOLOR(normal_border_color)
1114         GETCOLOR(presel_border_color)
1115         GETCOLOR(focused_locked_border_color)
1116         GETCOLOR(active_locked_border_color)
1117         GETCOLOR(normal_locked_border_color)
1118         GETCOLOR(focused_sticky_border_color)
1119         GETCOLOR(active_sticky_border_color)
1120         GETCOLOR(normal_sticky_border_color)
1121         GETCOLOR(urgent_border_color)
1122 #undef GETCOLOR
1123 #define GETBOOL(s) \
1124         else if (streq(#s, name)) \
1125                 fprintf(rsp, "%s", BOOLSTR(s));
1126         GETBOOL(borderless_monocle)
1127         GETBOOL(gapless_monocle)
1128         GETBOOL(focus_follows_pointer)
1129         GETBOOL(pointer_follows_focus)
1130         GETBOOL(pointer_follows_monitor)
1131         GETBOOL(apply_floating_atom)
1132         GETBOOL(auto_alternate)
1133         GETBOOL(auto_cancel)
1134         GETBOOL(history_aware_focus)
1135         GETBOOL(focus_by_distance)
1136         GETBOOL(ignore_ewmh_focus)
1137         GETBOOL(center_pseudo_tiled)
1138         GETBOOL(remove_disabled_monitors)
1139         GETBOOL(remove_unplugged_monitors)
1140         GETBOOL(merge_overlapping_monitors)
1141 #undef GETBOOL
1142         else
1143                 return MSG_FAILURE;
1144         return MSG_SUCCESS;
1145 }
1146
1147 bool parse_subscriber_mask(char *s, subscriber_mask_t *mask)
1148 {
1149         if (streq("all", s)) {
1150                 *mask = SBSC_MASK_ALL;
1151         } else if (streq("window", s)) {
1152                 *mask = SBSC_MASK_WINDOW;
1153         } else if (streq("desktop", s)) {
1154                 *mask = SBSC_MASK_DESKTOP;
1155         } else if (streq("monitor", s)) {
1156                 *mask = SBSC_MASK_MONITOR;
1157         } else if (streq("window_manage", s)) {
1158                 *mask = SBSC_MASK_WINDOW_MANAGE;
1159         } else if (streq("window_unmanage", s)) {
1160                 *mask = SBSC_MASK_WINDOW_UNMANAGE;
1161         } else if (streq("window_urgent", s)) {
1162                 *mask = SBSC_MASK_WINDOW_URGENT;
1163         } else if (streq("window_fullscreen", s)) {
1164                 *mask = SBSC_MASK_WINDOW_FULLSCREEN;
1165         } else if (streq("desktop_add", s)) {
1166                 *mask = SBSC_MASK_DESKTOP_ADD;
1167         } else if (streq("desktop_rename", s)) {
1168                 *mask = SBSC_MASK_DESKTOP_RENAME;
1169         } else if (streq("desktop_remove", s)) {
1170                 *mask = SBSC_MASK_DESKTOP_REMOVE;
1171         } else if (streq("monitor_add", s)) {
1172                 *mask = SBSC_MASK_MONITOR_ADD;
1173         } else if (streq("monitor_rename", s)) {
1174                 *mask = SBSC_MASK_MONITOR_RENAME;
1175         } else if (streq("monitor_remove", s)) {
1176                 *mask = SBSC_MASK_MONITOR_REMOVE;
1177         } else if (streq("report", s)) {
1178                 *mask = SBSC_MASK_REPORT;
1179         } else {
1180                 return false;
1181         }
1182         return true;
1183 }
1184
1185 bool parse_bool(char *value, bool *b)
1186 {
1187         if (streq("true", value) || streq("on", value)) {
1188                 *b = true;
1189                 return true;
1190         } else if (streq("false", value) || streq("off", value)) {
1191                 *b = false;
1192                 return true;
1193         }
1194         return false;
1195 }
1196
1197 bool parse_layout(char *s, layout_t *l)
1198 {
1199         if (streq("monocle", s)) {
1200                 *l = LAYOUT_MONOCLE;
1201                 return true;
1202         } else if (streq("tiled", s)) {
1203                 *l = LAYOUT_TILED;
1204                 return true;
1205         }
1206         return false;
1207 }
1208
1209 bool parse_direction(char *s, direction_t *d)
1210 {
1211         if (streq("right", s)) {
1212                 *d = DIR_RIGHT;
1213                 return true;
1214         } else if (streq("down", s)) {
1215                 *d = DIR_DOWN;
1216                 return true;
1217         } else if (streq("left", s)) {
1218                 *d = DIR_LEFT;
1219                 return true;
1220         } else if (streq("up", s)) {
1221                 *d = DIR_UP;
1222                 return true;
1223         }
1224         return false;
1225 }
1226
1227 bool parse_cycle_direction(char *s, cycle_dir_t *d)
1228 {
1229         if (streq("next", s)) {
1230                 *d = CYCLE_NEXT;
1231                 return true;
1232         } else if (streq("prev", s)) {
1233                 *d = CYCLE_PREV;
1234                 return true;
1235         }
1236         return false;
1237 }
1238
1239 bool parse_circulate_direction(char *s, circulate_dir_t *d)
1240 {
1241         if (streq("forward", s)) {
1242                 *d = CIRCULATE_FORWARD;
1243                 return true;
1244         } else if (streq("backward", s)) {
1245                 *d = CIRCULATE_BACKWARD;
1246                 return true;
1247         }
1248         return false;
1249 }
1250
1251 bool parse_history_direction(char *s, history_dir_t *d)
1252 {
1253         if (streq("older", s)) {
1254                 *d = HISTORY_OLDER;
1255                 return true;
1256         } else if (streq("newer", s)) {
1257                 *d = HISTORY_NEWER;
1258                 return true;
1259         }
1260         return false;
1261 }
1262
1263
1264 bool parse_flip(char *s, flip_t *f)
1265 {
1266         if (streq("horizontal", s)) {
1267                 *f = FLIP_HORIZONTAL;
1268                 return true;
1269         } else if (streq("vertical", s)) {
1270                 *f = FLIP_VERTICAL;
1271                 return true;
1272         }
1273         return false;
1274 }
1275
1276 bool parse_pointer_action(char *s, pointer_action_t *a)
1277 {
1278         if (streq("move", s)) {
1279                 *a = ACTION_MOVE;
1280                 return true;
1281         } else if (streq("resize_corner", s)) {
1282                 *a = ACTION_RESIZE_CORNER;
1283                 return true;
1284         } else if (streq("resize_side", s)) {
1285                 *a = ACTION_RESIZE_SIDE;
1286                 return true;
1287         } else if (streq("focus", s)) {
1288                 *a = ACTION_FOCUS;
1289                 return true;
1290         }
1291         return false;
1292 }
1293
1294 bool parse_child_polarity(char *s, child_polarity_t *p)
1295 {
1296         if (streq("first_child", s)) {
1297                 *p = FIRST_CHILD;
1298                 return true;
1299         } else if (streq("second_child", s)) {
1300                 *p = SECOND_CHILD;
1301                 return true;
1302         }
1303         return false;
1304 }
1305
1306 bool parse_degree(char *s, int *d)
1307 {
1308         int i = atoi(s);
1309         while (i < 0)
1310                 i += 360;
1311         while (i > 359)
1312                 i -= 360;
1313         if ((i % 90) != 0) {
1314                 return false;
1315         } else {
1316                 *d = i;
1317                 return true;
1318         }
1319 }
1320
1321 bool parse_window_id(char *s, long int *i)
1322 {
1323         char *end;
1324         errno = 0;
1325         long int ret = strtol(s, &end, 0);
1326         if (errno != 0 || *end != '\0')
1327                 return false;
1328         else
1329                 *i = ret;
1330         return true;
1331 }
1332
1333 bool parse_bool_declaration(char *s, char **key, bool *value, alter_state_t *state)
1334 {
1335         *key = strtok(s, EQL_TOK);
1336         char *v = strtok(NULL, EQL_TOK);
1337         if (v == NULL) {
1338                 *state = ALTER_TOGGLE;
1339                 return true;
1340         } else {
1341                 if (parse_bool(v, value)) {
1342                         *state = ALTER_SET;
1343                         return true;
1344                 } else {
1345                         return false;
1346                 }
1347         }
1348         return false;
1349 }
1350
1351 bool parse_index(char *s, int *i)
1352 {
1353         int idx;
1354         if (sscanf(s, "^%i", &idx) != 1 || idx < 1)
1355                 return false;
1356         *i = idx;
1357         return true;
1358 }