git.sur5r.net Git - i3/i3/blob - src/commands.c

   1 /*
   2  * vim:ts=4:sw=4:expandtab
   3  *
   4  * i3 - an improved dynamic tiling window manager
   5  * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
   6  *
   7  * commands.c: all command functions (see commands_parser.c)
   8  *
   9  */
  10 #include "all.h"
  11
  12 #include <stdint.h>
  13 #include <float.h>
  14 #include <stdarg.h>
  15
  16 #ifdef I3_ASAN_ENABLED
  17 #include <sanitizer/lsan_interface.h>
  18 #endif
  19
  20 #include "shmlog.h"
  21
  22 // Macros to make the YAJL API a bit easier to use.
  23 #define y(x, ...) (cmd_output->json_gen != NULL ? yajl_gen_##x(cmd_output->json_gen, ##__VA_ARGS__) : 0)
  24 #define ystr(str) (cmd_output->json_gen != NULL ? yajl_gen_string(cmd_output->json_gen, (unsigned char *)str, strlen(str)) : 0)
  25 #define ysuccess(success)                   \
  26     do {                                    \
  27         if (cmd_output->json_gen != NULL) { \
  28             y(map_open);                    \
  29             ystr("success");                \
  30             y(bool, success);               \
  31             y(map_close);                   \
  32         }                                   \
  33     } while (0)
  34 #define yerror(format, ...)                             \
  35     do {                                                \
  36         if (cmd_output->json_gen != NULL) {             \
  37             char *message;                              \
  38             sasprintf(&message, format, ##__VA_ARGS__); \
  39             y(map_open);                                \
  40             ystr("success");                            \
  41             y(bool, false);                             \
  42             ystr("error");                              \
  43             ystr(message);                              \
  44             y(map_close);                               \
  45             free(message);                              \
  46         }                                               \
  47     } while (0)
  48
  49 /** If an error occurred during parsing of the criteria, we want to exit instead
  50  * of relying on fallback behavior. See #2091. */
  51 #define HANDLE_INVALID_MATCH                                   \
  52     do {                                                       \
  53         if (current_match->error != NULL) {                    \
  54             yerror("Invalid match: %s", current_match->error); \
  55             return;                                            \
  56         }                                                      \
  57     } while (0)
  58
  59 /** When the command did not include match criteria (!), we use the currently
  60  * focused container. Do not confuse this case with a command which included
  61  * criteria but which did not match any windows. This macro has to be called in
  62  * every command.
  63  */
  64 #define HANDLE_EMPTY_MATCH                              \
  65     do {                                                \
  66         HANDLE_INVALID_MATCH;                           \
  67                                                         \
  68         if (match_is_empty(current_match)) {            \
  69             while (!TAILQ_EMPTY(&owindows)) {           \
  70                 owindow *ow = TAILQ_FIRST(&owindows);   \
  71                 TAILQ_REMOVE(&owindows, ow, owindows);  \
  72                 free(ow);                               \
  73             }                                           \
  74             owindow *ow = smalloc(sizeof(owindow));     \
  75             ow->con = focused;                          \
  76             TAILQ_INIT(&owindows);                      \
  77             TAILQ_INSERT_TAIL(&owindows, ow, owindows); \
  78         }                                               \
  79     } while (0)
  80
  81 /*
  82  * Returns true if a is definitely greater than b (using the given epsilon)
  83  *
  84  */
  85 static bool definitelyGreaterThan(float a, float b, float epsilon) {
  86     return (a - b) > ((fabs(a) < fabs(b) ? fabs(b) : fabs(a)) * epsilon);
  87 }
  88
  89 /*
  90  * Checks whether we switched to a new workspace and returns false in that case,
  91  * signaling that further workspace switching should be done by the calling function
  92  * If not, calls workspace_back_and_forth() if workspace_auto_back_and_forth is set
  93  * and return true, signaling that no further workspace switching should occur in the calling function.
  94  *
  95  */
  96 static bool maybe_back_and_forth(struct CommandResultIR *cmd_output, const char *name) {
  97     Con *ws = con_get_workspace(focused);
  98
  99     /* If we switched to a different workspace, do nothing */
 100     if (strcmp(ws->name, name) != 0)
 101         return false;
 102
 103     DLOG("This workspace is already focused.\n");
 104     if (config.workspace_auto_back_and_forth) {
 105         workspace_back_and_forth();
 106         cmd_output->needs_tree_render = true;
 107     }
 108     return true;
 109 }
 110
 111 /*
 112  * Return the passed workspace unless it is the current one and auto back and
 113  * forth is enabled, in which case the back_and_forth workspace is returned.
 114  */
 115 static Con *maybe_auto_back_and_forth_workspace(Con *workspace) {
 116     Con *current, *baf;
 117
 118     if (!config.workspace_auto_back_and_forth)
 119         return workspace;
 120
 121     current = con_get_workspace(focused);
 122
 123     if (current == workspace) {
 124         baf = workspace_back_and_forth_get();
 125         if (baf != NULL) {
 126             DLOG("Substituting workspace with back_and_forth, as it is focused.\n");
 127             return baf;
 128         }
 129     }
 130
 131     return workspace;
 132 }
 133
 134 /*******************************************************************************
 135  * Criteria functions.
 136  ******************************************************************************/
 137
 138 /*
 139  * Helper data structure for an operation window (window on which the operation
 140  * will be performed). Used to build the TAILQ owindows.
 141  *
 142  */
 143 typedef struct owindow {
 144     Con *con;
 145     TAILQ_ENTRY(owindow) owindows;
 146 } owindow;
 147
 148 typedef TAILQ_HEAD(owindows_head, owindow) owindows_head;
 149
 150 static owindows_head owindows;
 151
 152 /*
 153  * Initializes the specified 'Match' data structure and the initial state of
 154  * commands.c for matching target windows of a command.
 155  *
 156  */
 157 void cmd_criteria_init(I3_CMD) {
 158     Con *con;
 159     owindow *ow;
 160
 161     DLOG("Initializing criteria, current_match = %p\n", current_match);
 162     match_free(current_match);
 163     match_init(current_match);
 164     while (!TAILQ_EMPTY(&owindows)) {
 165         ow = TAILQ_FIRST(&owindows);
 166         TAILQ_REMOVE(&owindows, ow, owindows);
 167         free(ow);
 168     }
 169     TAILQ_INIT(&owindows);
 170     /* copy all_cons */
 171     TAILQ_FOREACH(con, &all_cons, all_cons) {
 172         ow = smalloc(sizeof(owindow));
 173         ow->con = con;
 174         TAILQ_INSERT_TAIL(&owindows, ow, owindows);
 175     }
 176 }
 177
 178 /*
 179  * A match specification just finished (the closing square bracket was found),
 180  * so we filter the list of owindows.
 181  *
 182  */
 183 void cmd_criteria_match_windows(I3_CMD) {
 184     owindow *next, *current;
 185
 186     DLOG("match specification finished, matching...\n");
 187     /* copy the old list head to iterate through it and start with a fresh
 188      * list which will contain only matching windows */
 189     struct owindows_head old = owindows;
 190     TAILQ_INIT(&owindows);
 191     for (next = TAILQ_FIRST(&old); next != TAILQ_END(&old);) {
 192         /* make a copy of the next pointer and advance the pointer to the
 193          * next element as we are going to invalidate the element’s
 194          * next/prev pointers by calling TAILQ_INSERT_TAIL later */
 195         current = next;
 196         next = TAILQ_NEXT(next, owindows);
 197
 198         DLOG("checking if con %p / %s matches\n", current->con, current->con->name);
 199
 200         /* We use this flag to prevent matching on window-less containers if
 201          * only window-specific criteria were specified. */
 202         bool accept_match = false;
 203
 204         if (current_match->con_id != NULL) {
 205             accept_match = true;
 206
 207             if (current_match->con_id == current->con) {
 208                 DLOG("con_id matched.\n");
 209             } else {
 210                 DLOG("con_id does not match.\n");
 211                 FREE(current);
 212                 continue;
 213             }
 214         }
 215
 216         if (current_match->mark != NULL && !TAILQ_EMPTY(&(current->con->marks_head))) {
 217             accept_match = true;
 218             bool matched_by_mark = false;
 219
 220             mark_t *mark;
 221             TAILQ_FOREACH(mark, &(current->con->marks_head), marks) {
 222                 if (!regex_matches(current_match->mark, mark->name))
 223                     continue;
 224
 225                 DLOG("match by mark\n");
 226                 matched_by_mark = true;
 227                 break;
 228             }
 229
 230             if (!matched_by_mark) {
 231                 DLOG("mark does not match.\n");
 232                 FREE(current);
 233                 continue;
 234             }
 235         }
 236
 237         if (current->con->window != NULL) {
 238             if (match_matches_window(current_match, current->con->window)) {
 239                 DLOG("matches window!\n");
 240                 accept_match = true;
 241             } else {
 242                 DLOG("doesn't match\n");
 243                 FREE(current);
 244                 continue;
 245             }
 246         }
 247
 248         if (accept_match) {
 249             TAILQ_INSERT_TAIL(&owindows, current, owindows);
 250         } else {
 251             FREE(current);
 252             continue;
 253         }
 254     }
 255
 256     TAILQ_FOREACH(current, &owindows, owindows) {
 257         DLOG("matching: %p / %s\n", current->con, current->con->name);
 258     }
 259 }
 260
 261 /*
 262  * Interprets a ctype=cvalue pair and adds it to the current match
 263  * specification.
 264  *
 265  */
 266 void cmd_criteria_add(I3_CMD, const char *ctype, const char *cvalue) {
 267     match_parse_property(current_match, ctype, cvalue);
 268 }
 269
 270 /*
 271  * Implementation of 'move [window|container] [to] workspace
 272  * next|prev|next_on_output|prev_on_output|current'.
 273  *
 274  */
 275 void cmd_move_con_to_workspace(I3_CMD, const char *which) {
 276     owindow *current;
 277
 278     DLOG("which=%s\n", which);
 279
 280     /* We have nothing to move:
 281      *  when criteria was specified but didn't match any window or
 282      *  when criteria wasn't specified and we don't have any window focused. */
 283     if ((!match_is_empty(current_match) && TAILQ_EMPTY(&owindows)) ||
 284         (match_is_empty(current_match) && focused->type == CT_WORKSPACE &&
 285          !con_has_children(focused))) {
 286         ysuccess(false);
 287         return;
 288     }
 289
 290     HANDLE_EMPTY_MATCH;
 291
 292     /* get the workspace */
 293     Con *ws;
 294     if (strcmp(which, "next") == 0)
 295         ws = workspace_next();
 296     else if (strcmp(which, "prev") == 0)
 297         ws = workspace_prev();
 298     else if (strcmp(which, "next_on_output") == 0)
 299         ws = workspace_next_on_output();
 300     else if (strcmp(which, "prev_on_output") == 0)
 301         ws = workspace_prev_on_output();
 302     else if (strcmp(which, "current") == 0)
 303         ws = con_get_workspace(focused);
 304     else {
 305         ELOG("BUG: called with which=%s\n", which);
 306         ysuccess(false);
 307         return;
 308     }
 309
 310     TAILQ_FOREACH(current, &owindows, owindows) {
 311         DLOG("matching: %p / %s\n", current->con, current->con->name);
 312         con_move_to_workspace(current->con, ws, true, false, false);
 313     }
 314
 315     cmd_output->needs_tree_render = true;
 316     // XXX: default reply for now, make this a better reply
 317     ysuccess(true);
 318 }
 319
 320 /**
 321  * Implementation of 'move [window|container] [to] workspace back_and_forth'.
 322  *
 323  */
 324 void cmd_move_con_to_workspace_back_and_forth(I3_CMD) {
 325     owindow *current;
 326     Con *ws;
 327
 328     ws = workspace_back_and_forth_get();
 329
 330     if (ws == NULL) {
 331         yerror("No workspace was previously active.");
 332         return;
 333     }
 334
 335     HANDLE_EMPTY_MATCH;
 336
 337     TAILQ_FOREACH(current, &owindows, owindows) {
 338         DLOG("matching: %p / %s\n", current->con, current->con->name);
 339         con_move_to_workspace(current->con, ws, true, false, false);
 340     }
 341
 342     cmd_output->needs_tree_render = true;
 343     // XXX: default reply for now, make this a better reply
 344     ysuccess(true);
 345 }
 346
 347 /*
 348  * Implementation of 'move [--no-auto-back-and-forth] [window|container] [to] workspace <name>'.
 349  *
 350  */
 351 void cmd_move_con_to_workspace_name(I3_CMD, const char *name, const char *_no_auto_back_and_forth) {
 352     if (strncasecmp(name, "__", strlen("__")) == 0) {
 353         LOG("You cannot move containers to i3-internal workspaces (\"%s\").\n", name);
 354         ysuccess(false);
 355         return;
 356     }
 357
 358     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 359     owindow *current;
 360
 361     /* We have nothing to move:
 362      *  when criteria was specified but didn't match any window or
 363      *  when criteria wasn't specified and we don't have any window focused. */
 364     if (!match_is_empty(current_match) && TAILQ_EMPTY(&owindows)) {
 365         ELOG("No windows match your criteria, cannot move.\n");
 366         ysuccess(false);
 367         return;
 368     } else if (match_is_empty(current_match) && focused->type == CT_WORKSPACE &&
 369                !con_has_children(focused)) {
 370         ysuccess(false);
 371         return;
 372     }
 373
 374     LOG("should move window to workspace %s\n", name);
 375     /* get the workspace */
 376     Con *ws = workspace_get(name, NULL);
 377
 378     if (!no_auto_back_and_forth)
 379         ws = maybe_auto_back_and_forth_workspace(ws);
 380
 381     HANDLE_EMPTY_MATCH;
 382
 383     TAILQ_FOREACH(current, &owindows, owindows) {
 384         DLOG("matching: %p / %s\n", current->con, current->con->name);
 385         con_move_to_workspace(current->con, ws, true, false, false);
 386     }
 387
 388     cmd_output->needs_tree_render = true;
 389     // XXX: default reply for now, make this a better reply
 390     ysuccess(true);
 391 }
 392
 393 /*
 394  * Implementation of 'move [--no-auto-back-and-forth] [window|container] [to] workspace number <name>'.
 395  *
 396  */
 397 void cmd_move_con_to_workspace_number(I3_CMD, const char *which, const char *_no_auto_back_and_forth) {
 398     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 399     owindow *current;
 400
 401     /* We have nothing to move:
 402      *  when criteria was specified but didn't match any window or
 403      *  when criteria wasn't specified and we don't have any window focused. */
 404     if ((!match_is_empty(current_match) && TAILQ_EMPTY(&owindows)) ||
 405         (match_is_empty(current_match) && focused->type == CT_WORKSPACE &&
 406          !con_has_children(focused))) {
 407         ysuccess(false);
 408         return;
 409     }
 410
 411     LOG("should move window to workspace %s\n", which);
 412     /* get the workspace */
 413     Con *output, *workspace = NULL;
 414
 415     long parsed_num = ws_name_to_number(which);
 416
 417     if (parsed_num == -1) {
 418         LOG("Could not parse initial part of \"%s\" as a number.\n", which);
 419         yerror("Could not parse number \"%s\"", which);
 420         return;
 421     }
 422
 423     TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
 424     GREP_FIRST(workspace, output_get_content(output),
 425                child->num == parsed_num);
 426
 427     if (!workspace) {
 428         workspace = workspace_get(which, NULL);
 429     }
 430
 431     if (!no_auto_back_and_forth)
 432         workspace = maybe_auto_back_and_forth_workspace(workspace);
 433
 434     HANDLE_EMPTY_MATCH;
 435
 436     TAILQ_FOREACH(current, &owindows, owindows) {
 437         DLOG("matching: %p / %s\n", current->con, current->con->name);
 438         con_move_to_workspace(current->con, workspace, true, false, false);
 439     }
 440
 441     cmd_output->needs_tree_render = true;
 442     // XXX: default reply for now, make this a better reply
 443     ysuccess(true);
 444 }
 445
 446 static void cmd_resize_floating(I3_CMD, const char *way, const char *direction, Con *floating_con, int px) {
 447     LOG("floating resize\n");
 448     Rect old_rect = floating_con->rect;
 449     Con *focused_con = con_descend_focused(floating_con);
 450
 451     /* ensure that resize will take place even if pixel increment is smaller than
 452      * height increment or width increment.
 453      * fixes #1011 */
 454     const i3Window *window = focused_con->window;
 455     if (window != NULL) {
 456         if (strcmp(direction, "up") == 0 || strcmp(direction, "down") == 0 ||
 457             strcmp(direction, "height") == 0) {
 458             if (px < 0)
 459                 px = (-px < window->height_increment) ? -window->height_increment : px;
 460             else
 461                 px = (px < window->height_increment) ? window->height_increment : px;
 462         } else if (strcmp(direction, "left") == 0 || strcmp(direction, "right") == 0) {
 463             if (px < 0)
 464                 px = (-px < window->width_increment) ? -window->width_increment : px;
 465             else
 466                 px = (px < window->width_increment) ? window->width_increment : px;
 467         }
 468     }
 469
 470     if (strcmp(direction, "up") == 0) {
 471         floating_con->rect.height += px;
 472     } else if (strcmp(direction, "down") == 0 || strcmp(direction, "height") == 0) {
 473         floating_con->rect.height += px;
 474     } else if (strcmp(direction, "left") == 0) {
 475         floating_con->rect.width += px;
 476     } else {
 477         floating_con->rect.width += px;
 478     }
 479
 480     floating_check_size(floating_con);
 481
 482     /* Did we actually resize anything or did the size constraints prevent us?
 483      * If we could not resize, exit now to not move the window. */
 484     if (memcmp(&old_rect, &(floating_con->rect), sizeof(Rect)) == 0)
 485         return;
 486
 487     if (strcmp(direction, "up") == 0) {
 488         floating_con->rect.y -= (floating_con->rect.height - old_rect.height);
 489     } else if (strcmp(direction, "left") == 0) {
 490         floating_con->rect.x -= (floating_con->rect.width - old_rect.width);
 491     }
 492
 493     /* If this is a scratchpad window, don't auto center it from now on. */
 494     if (floating_con->scratchpad_state == SCRATCHPAD_FRESH)
 495         floating_con->scratchpad_state = SCRATCHPAD_CHANGED;
 496 }
 497
 498 static bool cmd_resize_tiling_direction(I3_CMD, Con *current, const char *way, const char *direction, int ppt) {
 499     LOG("tiling resize\n");
 500     Con *second = NULL;
 501     Con *first = current;
 502     direction_t search_direction;
 503     if (!strcmp(direction, "left"))
 504         search_direction = D_LEFT;
 505     else if (!strcmp(direction, "right"))
 506         search_direction = D_RIGHT;
 507     else if (!strcmp(direction, "up"))
 508         search_direction = D_UP;
 509     else
 510         search_direction = D_DOWN;
 511
 512     bool res = resize_find_tiling_participants(&first, &second, search_direction);
 513     if (!res) {
 514         LOG("No second container in this direction found.\n");
 515         ysuccess(false);
 516         return false;
 517     }
 518
 519     /* get the default percentage */
 520     int children = con_num_children(first->parent);
 521     LOG("ins. %d children\n", children);
 522     double percentage = 1.0 / children;
 523     LOG("default percentage = %f\n", percentage);
 524
 525     /* resize */
 526     LOG("second->percent = %f\n", second->percent);
 527     LOG("first->percent before = %f\n", first->percent);
 528     if (first->percent == 0.0)
 529         first->percent = percentage;
 530     if (second->percent == 0.0)
 531         second->percent = percentage;
 532     double new_first_percent = first->percent + ((double)ppt / 100.0);
 533     double new_second_percent = second->percent - ((double)ppt / 100.0);
 534     LOG("new_first_percent = %f\n", new_first_percent);
 535     LOG("new_second_percent = %f\n", new_second_percent);
 536     /* Ensure that the new percentages are positive and greater than
 537      * 0.05 to have a reasonable minimum size. */
 538     if (definitelyGreaterThan(new_first_percent, 0.05, DBL_EPSILON) &&
 539         definitelyGreaterThan(new_second_percent, 0.05, DBL_EPSILON)) {
 540         first->percent += ((double)ppt / 100.0);
 541         second->percent -= ((double)ppt / 100.0);
 542         LOG("first->percent after = %f\n", first->percent);
 543         LOG("second->percent after = %f\n", second->percent);
 544     } else {
 545         LOG("Not resizing, already at minimum size\n");
 546     }
 547
 548     return true;
 549 }
 550
 551 static bool cmd_resize_tiling_width_height(I3_CMD, Con *current, const char *way, const char *direction, int ppt) {
 552     LOG("width/height resize\n");
 553     /* get the appropriate current container (skip stacked/tabbed cons) */
 554     while (current->parent->layout == L_STACKED ||
 555            current->parent->layout == L_TABBED)
 556         current = current->parent;
 557
 558     /* Then further go up until we find one with the matching orientation. */
 559     orientation_t search_orientation =
 560         (strcmp(direction, "width") == 0 ? HORIZ : VERT);
 561
 562     while (current->type != CT_WORKSPACE &&
 563            current->type != CT_FLOATING_CON &&
 564            (con_orientation(current->parent) != search_orientation || con_num_children(current->parent) == 1))
 565         current = current->parent;
 566
 567     /* get the default percentage */
 568     int children = con_num_children(current->parent);
 569     LOG("ins. %d children\n", children);
 570     double percentage = 1.0 / children;
 571     LOG("default percentage = %f\n", percentage);
 572
 573     orientation_t orientation = con_orientation(current->parent);
 574
 575     if ((orientation == HORIZ &&
 576          strcmp(direction, "height") == 0) ||
 577         (orientation == VERT &&
 578          strcmp(direction, "width") == 0)) {
 579         LOG("You cannot resize in that direction. Your focus is in a %s split container currently.\n",
 580             (orientation == HORIZ ? "horizontal" : "vertical"));
 581         ysuccess(false);
 582         return false;
 583     }
 584
 585     if (children == 1) {
 586         LOG("This is the only container, cannot resize.\n");
 587         ysuccess(false);
 588         return false;
 589     }
 590
 591     /* Ensure all the other children have a percentage set. */
 592     Con *child;
 593     TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
 594         LOG("child->percent = %f (child %p)\n", child->percent, child);
 595         if (child->percent == 0.0)
 596             child->percent = percentage;
 597     }
 598
 599     double new_current_percent = current->percent + ((double)ppt / 100.0);
 600     double subtract_percent = ((double)ppt / 100.0) / (children - 1);
 601     LOG("new_current_percent = %f\n", new_current_percent);
 602     LOG("subtract_percent = %f\n", subtract_percent);
 603     /* Ensure that the new percentages are positive and greater than
 604      * 0.05 to have a reasonable minimum size. */
 605     TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
 606         if (child == current)
 607             continue;
 608         if (!definitelyGreaterThan(child->percent - subtract_percent, 0.05, DBL_EPSILON)) {
 609             LOG("Not resizing, already at minimum size (child %p would end up with a size of %.f\n", child, child->percent - subtract_percent);
 610             ysuccess(false);
 611             return false;
 612         }
 613     }
 614     if (!definitelyGreaterThan(new_current_percent, 0.05, DBL_EPSILON)) {
 615         LOG("Not resizing, already at minimum size\n");
 616         ysuccess(false);
 617         return false;
 618     }
 619
 620     current->percent += ((double)ppt / 100.0);
 621     LOG("current->percent after = %f\n", current->percent);
 622
 623     TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
 624         if (child == current)
 625             continue;
 626         child->percent -= subtract_percent;
 627         LOG("child->percent after (%p) = %f\n", child, child->percent);
 628     }
 629
 630     return true;
 631 }
 632
 633 /*
 634  * Implementation of 'resize grow|shrink <direction> [<px> px] [or <ppt> ppt]'.
 635  *
 636  */
 637 void cmd_resize(I3_CMD, const char *way, const char *direction, long resize_px, long resize_ppt) {
 638     DLOG("resizing in way %s, direction %s, px %ld or ppt %ld\n", way, direction, resize_px, resize_ppt);
 639     if (strcmp(way, "shrink") == 0) {
 640         resize_px *= -1;
 641         resize_ppt *= -1;
 642     }
 643
 644     HANDLE_EMPTY_MATCH;
 645
 646     owindow *current;
 647     TAILQ_FOREACH(current, &owindows, owindows) {
 648         /* Don't handle dock windows (issue #1201) */
 649         if (current->con->window && current->con->window->dock) {
 650             DLOG("This is a dock window. Not resizing (con = %p)\n)", current->con);
 651             continue;
 652         }
 653
 654         Con *floating_con;
 655         if ((floating_con = con_inside_floating(current->con))) {
 656             cmd_resize_floating(current_match, cmd_output, way, direction, floating_con, resize_px);
 657         } else {
 658             if (strcmp(direction, "width") == 0 ||
 659                 strcmp(direction, "height") == 0) {
 660                 if (!cmd_resize_tiling_width_height(current_match, cmd_output,
 661                                                     current->con, way, direction, resize_ppt))
 662                     return;
 663             } else {
 664                 if (!cmd_resize_tiling_direction(current_match, cmd_output,
 665                                                  current->con, way, direction, resize_ppt))
 666                     return;
 667             }
 668         }
 669     }
 670
 671     cmd_output->needs_tree_render = true;
 672     // XXX: default reply for now, make this a better reply
 673     ysuccess(true);
 674 }
 675
 676 /*
 677  * Implementation of 'resize set <px> [px] <px> [px]'.
 678  *
 679  */
 680 void cmd_resize_set(I3_CMD, long cwidth, long cheight) {
 681     DLOG("resizing to %ldx%ld px\n", cwidth, cheight);
 682     if (cwidth <= 0 || cheight <= 0) {
 683         ELOG("Resize failed: dimensions cannot be negative (was %ldx%ld)\n", cwidth, cheight);
 684         return;
 685     }
 686
 687     HANDLE_EMPTY_MATCH;
 688
 689     owindow *current;
 690     TAILQ_FOREACH(current, &owindows, owindows) {
 691         Con *floating_con;
 692         if ((floating_con = con_inside_floating(current->con))) {
 693             floating_resize(floating_con, cwidth, cheight);
 694         } else {
 695             ELOG("Resize failed: %p not a floating container\n", current->con);
 696         }
 697     }
 698
 699     cmd_output->needs_tree_render = true;
 700     // XXX: default reply for now, make this a better reply
 701     ysuccess(true);
 702 }
 703
 704 /*
 705  * Implementation of 'border normal|pixel [<n>]', 'border none|1pixel|toggle'.
 706  *
 707  */
 708 void cmd_border(I3_CMD, const char *border_style_str, long border_width) {
 709     DLOG("border style should be changed to %s with border width %ld\n", border_style_str, border_width);
 710     owindow *current;
 711
 712     HANDLE_EMPTY_MATCH;
 713
 714     TAILQ_FOREACH(current, &owindows, owindows) {
 715         DLOG("matching: %p / %s\n", current->con, current->con->name);
 716         int border_style = current->con->border_style;
 717         int con_border_width = border_width;
 718
 719         if (strcmp(border_style_str, "toggle") == 0) {
 720             border_style++;
 721             border_style %= 3;
 722             if (border_style == BS_NORMAL)
 723                 con_border_width = 2;
 724             else if (border_style == BS_NONE)
 725                 con_border_width = 0;
 726             else if (border_style == BS_PIXEL)
 727                 con_border_width = 1;
 728         } else {
 729             if (strcmp(border_style_str, "normal") == 0) {
 730                 border_style = BS_NORMAL;
 731             } else if (strcmp(border_style_str, "pixel") == 0) {
 732                 border_style = BS_PIXEL;
 733             } else if (strcmp(border_style_str, "1pixel") == 0) {
 734                 border_style = BS_PIXEL;
 735                 con_border_width = 1;
 736             } else if (strcmp(border_style_str, "none") == 0) {
 737                 border_style = BS_NONE;
 738             } else {
 739                 ELOG("BUG: called with border_style=%s\n", border_style_str);
 740                 ysuccess(false);
 741                 return;
 742             }
 743         }
 744
 745         con_set_border_style(current->con, border_style, logical_px(con_border_width));
 746     }
 747
 748     cmd_output->needs_tree_render = true;
 749     // XXX: default reply for now, make this a better reply
 750     ysuccess(true);
 751 }
 752
 753 /*
 754  * Implementation of 'nop <comment>'.
 755  *
 756  */
 757 void cmd_nop(I3_CMD, const char *comment) {
 758     LOG("-------------------------------------------------\n");
 759     LOG("  NOP: %s\n", comment);
 760     LOG("-------------------------------------------------\n");
 761 }
 762
 763 /*
 764  * Implementation of 'append_layout <path>'.
 765  *
 766  */
 767 void cmd_append_layout(I3_CMD, const char *cpath) {
 768     char *path = sstrdup(cpath);
 769     LOG("Appending layout \"%s\"\n", path);
 770
 771     /* Make sure we allow paths like '~/.i3/layout.json' */
 772     path = resolve_tilde(path);
 773
 774     json_content_t content = json_determine_content(path);
 775     LOG("JSON content = %d\n", content);
 776     if (content == JSON_CONTENT_UNKNOWN) {
 777         ELOG("Could not determine the contents of \"%s\", not loading.\n", path);
 778         yerror("Could not determine the contents of \"%s\".", path);
 779         free(path);
 780         return;
 781     }
 782
 783     Con *parent = focused;
 784     if (content == JSON_CONTENT_WORKSPACE) {
 785         parent = output_get_content(con_get_output(parent));
 786     } else {
 787         /* We need to append the layout to a split container, since a leaf
 788          * container must not have any children (by definition).
 789          * Note that we explicitly check for workspaces, since they are okay for
 790          * this purpose, but con_accepts_window() returns false for workspaces. */
 791         while (parent->type != CT_WORKSPACE && !con_accepts_window(parent))
 792             parent = parent->parent;
 793     }
 794     DLOG("Appending to parent=%p instead of focused=%p\n", parent, focused);
 795     char *errormsg = NULL;
 796     tree_append_json(parent, path, &errormsg);
 797     if (errormsg != NULL) {
 798         yerror(errormsg);
 799         free(errormsg);
 800         /* Note that we continue executing since tree_append_json() has
 801          * side-effects — user-provided layouts can be partly valid, partly
 802          * invalid, leading to half of the placeholder containers being
 803          * created. */
 804     } else {
 805         ysuccess(true);
 806     }
 807
 808     // XXX: This is a bit of a kludge. Theoretically, render_con(parent,
 809     // false); should be enough, but when sending 'workspace 4; append_layout
 810     // /tmp/foo.json', the needs_tree_render == true of the workspace command
 811     // is not executed yet and will be batched with append_layout’s
 812     // needs_tree_render after the parser finished. We should check if that is
 813     // necessary at all.
 814     render_con(croot, false);
 815
 816     restore_open_placeholder_windows(parent);
 817
 818     if (content == JSON_CONTENT_WORKSPACE)
 819         ipc_send_workspace_event("restored", parent, NULL);
 820
 821     free(path);
 822     cmd_output->needs_tree_render = true;
 823 }
 824
 825 /*
 826  * Implementation of 'workspace next|prev|next_on_output|prev_on_output'.
 827  *
 828  */
 829 void cmd_workspace(I3_CMD, const char *which) {
 830     Con *ws;
 831
 832     DLOG("which=%s\n", which);
 833
 834     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 835         LOG("Cannot switch workspace while in global fullscreen\n");
 836         ysuccess(false);
 837         return;
 838     }
 839
 840     if (strcmp(which, "next") == 0)
 841         ws = workspace_next();
 842     else if (strcmp(which, "prev") == 0)
 843         ws = workspace_prev();
 844     else if (strcmp(which, "next_on_output") == 0)
 845         ws = workspace_next_on_output();
 846     else if (strcmp(which, "prev_on_output") == 0)
 847         ws = workspace_prev_on_output();
 848     else {
 849         ELOG("BUG: called with which=%s\n", which);
 850         ysuccess(false);
 851         return;
 852     }
 853
 854     workspace_show(ws);
 855
 856     cmd_output->needs_tree_render = true;
 857     // XXX: default reply for now, make this a better reply
 858     ysuccess(true);
 859 }
 860
 861 /*
 862  * Implementation of 'workspace [--no-auto-back-and-forth] number <name>'
 863  *
 864  */
 865 void cmd_workspace_number(I3_CMD, const char *which, const char *_no_auto_back_and_forth) {
 866     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 867     Con *output, *workspace = NULL;
 868
 869     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 870         LOG("Cannot switch workspace while in global fullscreen\n");
 871         ysuccess(false);
 872         return;
 873     }
 874
 875     long parsed_num = ws_name_to_number(which);
 876
 877     if (parsed_num == -1) {
 878         LOG("Could not parse initial part of \"%s\" as a number.\n", which);
 879         yerror("Could not parse number \"%s\"", which);
 880         return;
 881     }
 882
 883     TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
 884     GREP_FIRST(workspace, output_get_content(output),
 885                child->num == parsed_num);
 886
 887     if (!workspace) {
 888         LOG("There is no workspace with number %ld, creating a new one.\n", parsed_num);
 889         ysuccess(true);
 890         workspace_show_by_name(which);
 891         cmd_output->needs_tree_render = true;
 892         return;
 893     }
 894     if (!no_auto_back_and_forth && maybe_back_and_forth(cmd_output, workspace->name))
 895         return;
 896     workspace_show(workspace);
 897
 898     cmd_output->needs_tree_render = true;
 899     // XXX: default reply for now, make this a better reply
 900     ysuccess(true);
 901 }
 902
 903 /*
 904  * Implementation of 'workspace back_and_forth'.
 905  *
 906  */
 907 void cmd_workspace_back_and_forth(I3_CMD) {
 908     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 909         LOG("Cannot switch workspace while in global fullscreen\n");
 910         ysuccess(false);
 911         return;
 912     }
 913
 914     workspace_back_and_forth();
 915
 916     cmd_output->needs_tree_render = true;
 917     // XXX: default reply for now, make this a better reply
 918     ysuccess(true);
 919 }
 920
 921 /*
 922  * Implementation of 'workspace [--no-auto-back-and-forth] <name>'
 923  *
 924  */
 925 void cmd_workspace_name(I3_CMD, const char *name, const char *_no_auto_back_and_forth) {
 926     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 927
 928     if (strncasecmp(name, "__", strlen("__")) == 0) {
 929         LOG("You cannot switch to the i3-internal workspaces (\"%s\").\n", name);
 930         ysuccess(false);
 931         return;
 932     }
 933
 934     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 935         LOG("Cannot switch workspace while in global fullscreen\n");
 936         ysuccess(false);
 937         return;
 938     }
 939
 940     DLOG("should switch to workspace %s\n", name);
 941     if (!no_auto_back_and_forth && maybe_back_and_forth(cmd_output, name))
 942         return;
 943     workspace_show_by_name(name);
 944
 945     cmd_output->needs_tree_render = true;
 946     // XXX: default reply for now, make this a better reply
 947     ysuccess(true);
 948 }
 949
 950 /*
 951  * Implementation of 'mark [--add|--replace] [--toggle] <mark>'
 952  *
 953  */
 954 void cmd_mark(I3_CMD, const char *mark, const char *mode, const char *toggle) {
 955     HANDLE_EMPTY_MATCH;
 956
 957     owindow *current = TAILQ_FIRST(&owindows);
 958     if (current == NULL) {
 959         ysuccess(false);
 960         return;
 961     }
 962
 963     /* Marks must be unique, i.e., no two windows must have the same mark. */
 964     if (current != TAILQ_LAST(&owindows, owindows_head)) {
 965         yerror("A mark must not be put onto more than one window");
 966         return;
 967     }
 968
 969     DLOG("matching: %p / %s\n", current->con, current->con->name);
 970
 971     mark_mode_t mark_mode = (mode == NULL || strcmp(mode, "--replace") == 0) ? MM_REPLACE : MM_ADD;
 972     if (toggle != NULL) {
 973         con_mark_toggle(current->con, mark, mark_mode);
 974     } else {
 975         con_mark(current->con, mark, mark_mode);
 976     }
 977
 978     cmd_output->needs_tree_render = true;
 979     // XXX: default reply for now, make this a better reply
 980     ysuccess(true);
 981 }
 982
 983 /*
 984  * Implementation of 'unmark [mark]'
 985  *
 986  */
 987 void cmd_unmark(I3_CMD, const char *mark) {
 988     if (match_is_empty(current_match)) {
 989         con_unmark(NULL, mark);
 990     } else {
 991         owindow *current;
 992         TAILQ_FOREACH(current, &owindows, owindows) {
 993             con_unmark(current->con, mark);
 994         }
 995     }
 996
 997     cmd_output->needs_tree_render = true;
 998     // XXX: default reply for now, make this a better reply
 999     ysuccess(true);
1000 }
1001
1002 /*
1003  * Implementation of 'mode <string>'.
1004  *
1005  */
1006 void cmd_mode(I3_CMD, const char *mode) {
1007     DLOG("mode=%s\n", mode);
1008     switch_mode(mode);
1009
1010     // XXX: default reply for now, make this a better reply
1011     ysuccess(true);
1012 }
1013
1014 /*
1015  * Implementation of 'move [window|container] [to] output <str>'.
1016  *
1017  */
1018 void cmd_move_con_to_output(I3_CMD, const char *name) {
1019     DLOG("Should move window to output \"%s\".\n", name);
1020     HANDLE_EMPTY_MATCH;
1021
1022     owindow *current;
1023     bool had_error = false;
1024     TAILQ_FOREACH(current, &owindows, owindows) {
1025         DLOG("matching: %p / %s\n", current->con, current->con->name);
1026
1027         Output *current_output = get_output_for_con(current->con);
1028         assert(current_output != NULL);
1029
1030         Output *output = get_output_from_string(current_output, name);
1031         if (output == NULL) {
1032             ELOG("Could not find output \"%s\", skipping.\n", name);
1033             had_error = true;
1034             continue;
1035         }
1036
1037         Con *ws = NULL;
1038         GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1039         if (ws == NULL) {
1040             ELOG("Could not find a visible workspace on output %p.\n", output);
1041             had_error = true;
1042             continue;
1043         }
1044
1045         con_move_to_workspace(current->con, ws, true, false, false);
1046     }
1047
1048     cmd_output->needs_tree_render = true;
1049     ysuccess(!had_error);
1050 }
1051
1052 /*
1053  * Implementation of 'move [container|window] [to] mark <str>'.
1054  *
1055  */
1056 void cmd_move_con_to_mark(I3_CMD, const char *mark) {
1057     DLOG("moving window to mark \"%s\"\n", mark);
1058
1059     HANDLE_EMPTY_MATCH;
1060
1061     bool result = true;
1062     owindow *current;
1063     TAILQ_FOREACH(current, &owindows, owindows) {
1064         DLOG("moving matched window %p / %s to mark \"%s\"\n", current->con, current->con->name, mark);
1065         result &= con_move_to_mark(current->con, mark);
1066     }
1067
1068     cmd_output->needs_tree_render = true;
1069     ysuccess(result);
1070 }
1071
1072 /*
1073  * Implementation of 'floating enable|disable|toggle'
1074  *
1075  */
1076 void cmd_floating(I3_CMD, const char *floating_mode) {
1077     owindow *current;
1078
1079     DLOG("floating_mode=%s\n", floating_mode);
1080
1081     HANDLE_EMPTY_MATCH;
1082
1083     TAILQ_FOREACH(current, &owindows, owindows) {
1084         DLOG("matching: %p / %s\n", current->con, current->con->name);
1085         if (strcmp(floating_mode, "toggle") == 0) {
1086             DLOG("should toggle mode\n");
1087             toggle_floating_mode(current->con, false);
1088         } else {
1089             DLOG("should switch mode to %s\n", floating_mode);
1090             if (strcmp(floating_mode, "enable") == 0) {
1091                 floating_enable(current->con, false);
1092             } else {
1093                 floating_disable(current->con, false);
1094             }
1095         }
1096     }
1097
1098     cmd_output->needs_tree_render = true;
1099     // XXX: default reply for now, make this a better reply
1100     ysuccess(true);
1101 }
1102
1103 /*
1104  * Implementation of 'move workspace to [output] <str>'.
1105  *
1106  */
1107 void cmd_move_workspace_to_output(I3_CMD, const char *name) {
1108     DLOG("should move workspace to output %s\n", name);
1109
1110     HANDLE_EMPTY_MATCH;
1111
1112     owindow *current;
1113     TAILQ_FOREACH(current, &owindows, owindows) {
1114         Con *ws = con_get_workspace(current->con);
1115         bool success = workspace_move_to_output(ws, name);
1116         if (!success) {
1117             ELOG("Failed to move workspace to output.\n");
1118             ysuccess(false);
1119             return;
1120         }
1121     }
1122
1123     cmd_output->needs_tree_render = true;
1124     // XXX: default reply for now, make this a better reply
1125     ysuccess(true);
1126 }
1127
1128 /*
1129  * Implementation of 'split v|h|t|vertical|horizontal|toggle'.
1130  *
1131  */
1132 void cmd_split(I3_CMD, const char *direction) {
1133     HANDLE_EMPTY_MATCH;
1134
1135     owindow *current;
1136     LOG("splitting in direction %c\n", direction[0]);
1137     TAILQ_FOREACH(current, &owindows, owindows) {
1138         if (con_is_docked(current->con)) {
1139             ELOG("Cannot split a docked container, skipping.\n");
1140             continue;
1141         }
1142
1143         DLOG("matching: %p / %s\n", current->con, current->con->name);
1144         if (direction[0] == 't') {
1145             layout_t current_layout;
1146             if (current->con->type == CT_WORKSPACE) {
1147                 current_layout = current->con->layout;
1148             } else {
1149                 current_layout = current->con->parent->layout;
1150             }
1151             /* toggling split orientation */
1152             if (current_layout == L_SPLITH) {
1153                 tree_split(current->con, VERT);
1154             } else {
1155                 tree_split(current->con, HORIZ);
1156             }
1157         } else {
1158             tree_split(current->con, (direction[0] == 'v' ? VERT : HORIZ));
1159         }
1160     }
1161
1162     cmd_output->needs_tree_render = true;
1163     // XXX: default reply for now, make this a better reply
1164     ysuccess(true);
1165 }
1166
1167 /*
1168  * Implementation of 'kill [window|client]'.
1169  *
1170  */
1171 void cmd_kill(I3_CMD, const char *kill_mode_str) {
1172     if (kill_mode_str == NULL)
1173         kill_mode_str = "window";
1174
1175     DLOG("kill_mode=%s\n", kill_mode_str);
1176
1177     int kill_mode;
1178     if (strcmp(kill_mode_str, "window") == 0)
1179         kill_mode = KILL_WINDOW;
1180     else if (strcmp(kill_mode_str, "client") == 0)
1181         kill_mode = KILL_CLIENT;
1182     else {
1183         ELOG("BUG: called with kill_mode=%s\n", kill_mode_str);
1184         ysuccess(false);
1185         return;
1186     }
1187
1188     HANDLE_EMPTY_MATCH;
1189
1190     owindow *current;
1191     TAILQ_FOREACH(current, &owindows, owindows) {
1192         con_close(current->con, kill_mode);
1193     }
1194
1195     cmd_output->needs_tree_render = true;
1196     // XXX: default reply for now, make this a better reply
1197     ysuccess(true);
1198 }
1199
1200 /*
1201  * Implementation of 'exec [--no-startup-id] <command>'.
1202  *
1203  */
1204 void cmd_exec(I3_CMD, const char *nosn, const char *command) {
1205     bool no_startup_id = (nosn != NULL);
1206
1207     DLOG("should execute %s, no_startup_id = %d\n", command, no_startup_id);
1208     start_application(command, no_startup_id);
1209
1210     // XXX: default reply for now, make this a better reply
1211     ysuccess(true);
1212 }
1213
1214 /*
1215  * Implementation of 'focus left|right|up|down'.
1216  *
1217  */
1218 void cmd_focus_direction(I3_CMD, const char *direction) {
1219     DLOG("direction = *%s*\n", direction);
1220
1221     if (strcmp(direction, "left") == 0)
1222         tree_next('p', HORIZ);
1223     else if (strcmp(direction, "right") == 0)
1224         tree_next('n', HORIZ);
1225     else if (strcmp(direction, "up") == 0)
1226         tree_next('p', VERT);
1227     else if (strcmp(direction, "down") == 0)
1228         tree_next('n', VERT);
1229     else {
1230         ELOG("Invalid focus direction (%s)\n", direction);
1231         ysuccess(false);
1232         return;
1233     }
1234
1235     cmd_output->needs_tree_render = true;
1236     // XXX: default reply for now, make this a better reply
1237     ysuccess(true);
1238 }
1239
1240 /*
1241  * Implementation of 'focus tiling|floating|mode_toggle'.
1242  *
1243  */
1244 void cmd_focus_window_mode(I3_CMD, const char *window_mode) {
1245     DLOG("window_mode = %s\n", window_mode);
1246
1247     Con *ws = con_get_workspace(focused);
1248     if (ws != NULL) {
1249         if (strcmp(window_mode, "mode_toggle") == 0) {
1250             if (con_inside_floating(focused))
1251                 window_mode = "tiling";
1252             else
1253                 window_mode = "floating";
1254         }
1255         Con *current;
1256         TAILQ_FOREACH(current, &(ws->focus_head), focused) {
1257             if ((strcmp(window_mode, "floating") == 0 && current->type != CT_FLOATING_CON) ||
1258                 (strcmp(window_mode, "tiling") == 0 && current->type == CT_FLOATING_CON))
1259                 continue;
1260
1261             con_focus(con_descend_focused(current));
1262             break;
1263         }
1264     }
1265
1266     cmd_output->needs_tree_render = true;
1267     // XXX: default reply for now, make this a better reply
1268     ysuccess(true);
1269 }
1270
1271 /*
1272  * Implementation of 'focus parent|child'.
1273  *
1274  */
1275 void cmd_focus_level(I3_CMD, const char *level) {
1276     DLOG("level = %s\n", level);
1277     bool success = false;
1278
1279     /* Focusing the parent can only be allowed if the newly
1280      * focused container won't escape the fullscreen container. */
1281     if (strcmp(level, "parent") == 0) {
1282         if (focused && focused->parent) {
1283             if (con_fullscreen_permits_focusing(focused->parent))
1284                 success = level_up();
1285             else
1286                 ELOG("'focus parent': Currently in fullscreen, not going up\n");
1287         }
1288     }
1289
1290     /* Focusing a child should always be allowed. */
1291     else
1292         success = level_down();
1293
1294     cmd_output->needs_tree_render = success;
1295     // XXX: default reply for now, make this a better reply
1296     ysuccess(success);
1297 }
1298
1299 /*
1300  * Implementation of 'focus'.
1301  *
1302  */
1303 void cmd_focus(I3_CMD) {
1304     DLOG("current_match = %p\n", current_match);
1305
1306     if (match_is_empty(current_match)) {
1307         ELOG("You have to specify which window/container should be focused.\n");
1308         ELOG("Example: [class=\"urxvt\" title=\"irssi\"] focus\n");
1309
1310         yerror("You have to specify which window/container should be focused");
1311
1312         return;
1313     }
1314
1315     Con *__i3_scratch = workspace_get("__i3_scratch", NULL);
1316     int count = 0;
1317     owindow *current;
1318     TAILQ_FOREACH(current, &owindows, owindows) {
1319         Con *ws = con_get_workspace(current->con);
1320         /* If no workspace could be found, this was a dock window.
1321          * Just skip it, you cannot focus dock windows. */
1322         if (!ws)
1323             continue;
1324
1325         /* Check the fullscreen focus constraints. */
1326         if (!con_fullscreen_permits_focusing(current->con)) {
1327             LOG("Cannot change focus while in fullscreen mode (fullscreen rules).\n");
1328             ysuccess(false);
1329             return;
1330         }
1331
1332         /* In case this is a scratchpad window, call scratchpad_show(). */
1333         if (ws == __i3_scratch) {
1334             scratchpad_show(current->con);
1335             count++;
1336             /* While for the normal focus case we can change focus multiple
1337              * times and only a single window ends up focused, we could show
1338              * multiple scratchpad windows. So, rather break here. */
1339             break;
1340         }
1341
1342         /* If the container is not on the current workspace,
1343          * workspace_show() will switch to a different workspace and (if
1344          * enabled) trigger a mouse pointer warp to the currently focused
1345          * container (!) on the target workspace.
1346          *
1347          * Therefore, before calling workspace_show(), we make sure that
1348          * 'current' will be focused on the workspace. However, we cannot
1349          * just con_focus(current) because then the pointer will not be
1350          * warped at all (the code thinks we are already there).
1351          *
1352          * So we focus 'current' to make it the currently focused window of
1353          * the target workspace, then revert focus. */
1354         Con *currently_focused = focused;
1355         con_focus(current->con);
1356         con_focus(currently_focused);
1357
1358         /* Now switch to the workspace, then focus */
1359         workspace_show(ws);
1360         LOG("focusing %p / %s\n", current->con, current->con->name);
1361         con_focus(current->con);
1362         count++;
1363     }
1364
1365     if (count > 1)
1366         LOG("WARNING: Your criteria for the focus command matches %d containers, "
1367             "while only exactly one container can be focused at a time.\n",
1368             count);
1369
1370     cmd_output->needs_tree_render = true;
1371     ysuccess(count > 0);
1372 }
1373
1374 /*
1375  * Implementation of 'fullscreen enable|toggle [global]' and
1376  *                   'fullscreen disable'
1377  *
1378  */
1379 void cmd_fullscreen(I3_CMD, const char *action, const char *fullscreen_mode) {
1380     fullscreen_mode_t mode = strcmp(fullscreen_mode, "global") == 0 ? CF_GLOBAL : CF_OUTPUT;
1381     DLOG("%s fullscreen, mode = %s\n", action, fullscreen_mode);
1382     owindow *current;
1383
1384     HANDLE_EMPTY_MATCH;
1385
1386     TAILQ_FOREACH(current, &owindows, owindows) {
1387         DLOG("matching: %p / %s\n", current->con, current->con->name);
1388         if (strcmp(action, "toggle") == 0) {
1389             con_toggle_fullscreen(current->con, mode);
1390         } else if (strcmp(action, "enable") == 0) {
1391             con_enable_fullscreen(current->con, mode);
1392         } else if (strcmp(action, "disable") == 0) {
1393             con_disable_fullscreen(current->con);
1394         }
1395     }
1396
1397     cmd_output->needs_tree_render = true;
1398     // XXX: default reply for now, make this a better reply
1399     ysuccess(true);
1400 }
1401
1402 /*
1403  * Implementation of 'sticky enable|disable|toggle'.
1404  *
1405  */
1406 void cmd_sticky(I3_CMD, const char *action) {
1407     DLOG("%s sticky on window\n", action);
1408     HANDLE_EMPTY_MATCH;
1409
1410     owindow *current;
1411     TAILQ_FOREACH(current, &owindows, owindows) {
1412         if (current->con->window == NULL) {
1413             ELOG("only containers holding a window can be made sticky, skipping con = %p\n", current->con);
1414             continue;
1415         }
1416         DLOG("setting sticky for container = %p / %s\n", current->con, current->con->name);
1417
1418         bool sticky = false;
1419         if (strcmp(action, "enable") == 0)
1420             sticky = true;
1421         else if (strcmp(action, "disable") == 0)
1422             sticky = false;
1423         else if (strcmp(action, "toggle") == 0)
1424             sticky = !current->con->sticky;
1425
1426         current->con->sticky = sticky;
1427         ewmh_update_sticky(current->con->window->id, sticky);
1428     }
1429
1430     /* A window we made sticky might not be on a visible workspace right now, so we need to make
1431      * sure it gets pushed to the front now. */
1432     output_push_sticky_windows(focused);
1433
1434     ewmh_update_wm_desktop();
1435
1436     cmd_output->needs_tree_render = true;
1437     ysuccess(true);
1438 }
1439
1440 /*
1441  * Implementation of 'move <direction> [<pixels> [px]]'.
1442  *
1443  */
1444 void cmd_move_direction(I3_CMD, const char *direction, long move_px) {
1445     owindow *current;
1446     HANDLE_EMPTY_MATCH;
1447
1448     Con *initially_focused = focused;
1449
1450     TAILQ_FOREACH(current, &owindows, owindows) {
1451         DLOG("moving in direction %s, px %ld\n", direction, move_px);
1452         if (con_is_floating(current->con)) {
1453             DLOG("floating move with %ld pixels\n", move_px);
1454             Rect newrect = current->con->parent->rect;
1455             if (strcmp(direction, "left") == 0) {
1456                 newrect.x -= move_px;
1457             } else if (strcmp(direction, "right") == 0) {
1458                 newrect.x += move_px;
1459             } else if (strcmp(direction, "up") == 0) {
1460                 newrect.y -= move_px;
1461             } else if (strcmp(direction, "down") == 0) {
1462                 newrect.y += move_px;
1463             }
1464             floating_reposition(current->con->parent, newrect);
1465         } else {
1466             tree_move(current->con, (strcmp(direction, "right") == 0 ? D_RIGHT : (strcmp(direction, "left") == 0 ? D_LEFT : (strcmp(direction, "up") == 0 ? D_UP : D_DOWN))));
1467             cmd_output->needs_tree_render = true;
1468         }
1469     }
1470
1471     /* the move command should not disturb focus */
1472     if (focused != initially_focused)
1473         con_focus(initially_focused);
1474
1475     // XXX: default reply for now, make this a better reply
1476     ysuccess(true);
1477 }
1478
1479 /*
1480  * Implementation of 'layout default|stacked|stacking|tabbed|splitv|splith'.
1481  *
1482  */
1483 void cmd_layout(I3_CMD, const char *layout_str) {
1484     HANDLE_EMPTY_MATCH;
1485
1486     if (strcmp(layout_str, "stacking") == 0)
1487         layout_str = "stacked";
1488     layout_t layout;
1489     /* default is a special case which will be handled in con_set_layout(). */
1490     if (strcmp(layout_str, "default") == 0)
1491         layout = L_DEFAULT;
1492     else if (strcmp(layout_str, "stacked") == 0)
1493         layout = L_STACKED;
1494     else if (strcmp(layout_str, "tabbed") == 0)
1495         layout = L_TABBED;
1496     else if (strcmp(layout_str, "splitv") == 0)
1497         layout = L_SPLITV;
1498     else if (strcmp(layout_str, "splith") == 0)
1499         layout = L_SPLITH;
1500     else {
1501         ELOG("Unknown layout \"%s\", this is a mismatch between code and parser spec.\n", layout_str);
1502         return;
1503     }
1504
1505     DLOG("changing layout to %s (%d)\n", layout_str, layout);
1506
1507     owindow *current;
1508     TAILQ_FOREACH(current, &owindows, owindows) {
1509         if (con_is_docked(current->con)) {
1510             ELOG("cannot change layout of a docked container, skipping it.\n");
1511             continue;
1512         }
1513
1514         DLOG("matching: %p / %s\n", current->con, current->con->name);
1515         con_set_layout(current->con, layout);
1516     }
1517
1518     cmd_output->needs_tree_render = true;
1519     // XXX: default reply for now, make this a better reply
1520     ysuccess(true);
1521 }
1522
1523 /*
1524  * Implementation of 'layout toggle [all|split]'.
1525  *
1526  */
1527 void cmd_layout_toggle(I3_CMD, const char *toggle_mode) {
1528     owindow *current;
1529
1530     if (toggle_mode == NULL)
1531         toggle_mode = "default";
1532
1533     DLOG("toggling layout (mode = %s)\n", toggle_mode);
1534
1535     /* check if the match is empty, not if the result is empty */
1536     if (match_is_empty(current_match))
1537         con_toggle_layout(focused, toggle_mode);
1538     else {
1539         TAILQ_FOREACH(current, &owindows, owindows) {
1540             DLOG("matching: %p / %s\n", current->con, current->con->name);
1541             con_toggle_layout(current->con, toggle_mode);
1542         }
1543     }
1544
1545     cmd_output->needs_tree_render = true;
1546     // XXX: default reply for now, make this a better reply
1547     ysuccess(true);
1548 }
1549
1550 /*
1551  * Implementation of 'exit'.
1552  *
1553  */
1554 void cmd_exit(I3_CMD) {
1555     LOG("Exiting due to user command.\n");
1556 #ifdef I3_ASAN_ENABLED
1557     __lsan_do_leak_check();
1558 #endif
1559     ipc_shutdown();
1560     unlink(config.ipc_socket_path);
1561     xcb_disconnect(conn);
1562     exit(0);
1563
1564     /* unreached */
1565 }
1566
1567 /*
1568  * Implementation of 'reload'.
1569  *
1570  */
1571 void cmd_reload(I3_CMD) {
1572     LOG("reloading\n");
1573     kill_nagbar(&config_error_nagbar_pid, false);
1574     kill_nagbar(&command_error_nagbar_pid, false);
1575     load_configuration(conn, NULL, true);
1576     x_set_i3_atoms();
1577     /* Send an IPC event just in case the ws names have changed */
1578     ipc_send_workspace_event("reload", NULL, NULL);
1579     /* Send an update event for the barconfig just in case it has changed */
1580     update_barconfig();
1581
1582     // XXX: default reply for now, make this a better reply
1583     ysuccess(true);
1584 }
1585
1586 /*
1587  * Implementation of 'restart'.
1588  *
1589  */
1590 void cmd_restart(I3_CMD) {
1591     LOG("restarting i3\n");
1592     ipc_shutdown();
1593     unlink(config.ipc_socket_path);
1594     /* We need to call this manually since atexit handlers don’t get called
1595      * when exec()ing */
1596     purge_zerobyte_logfile();
1597     i3_restart(false);
1598
1599     // XXX: default reply for now, make this a better reply
1600     ysuccess(true);
1601 }
1602
1603 /*
1604  * Implementation of 'open'.
1605  *
1606  */
1607 void cmd_open(I3_CMD) {
1608     LOG("opening new container\n");
1609     Con *con = tree_open_con(NULL, NULL);
1610     con->layout = L_SPLITH;
1611     con_focus(con);
1612
1613     y(map_open);
1614     ystr("success");
1615     y(bool, true);
1616     ystr("id");
1617     y(integer, (uintptr_t)con);
1618     y(map_close);
1619
1620     cmd_output->needs_tree_render = true;
1621 }
1622
1623 /*
1624  * Implementation of 'focus output <output>'.
1625  *
1626  */
1627 void cmd_focus_output(I3_CMD, const char *name) {
1628     owindow *current;
1629
1630     DLOG("name = %s\n", name);
1631
1632     HANDLE_EMPTY_MATCH;
1633
1634     /* get the output */
1635     Output *current_output = NULL;
1636     Output *output;
1637
1638     TAILQ_FOREACH(current, &owindows, owindows)
1639     current_output = get_output_for_con(current->con);
1640     assert(current_output != NULL);
1641
1642     output = get_output_from_string(current_output, name);
1643
1644     if (!output) {
1645         LOG("No such output found.\n");
1646         ysuccess(false);
1647         return;
1648     }
1649
1650     /* get visible workspace on output */
1651     Con *ws = NULL;
1652     GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1653     if (!ws) {
1654         ysuccess(false);
1655         return;
1656     }
1657
1658     workspace_show(ws);
1659
1660     cmd_output->needs_tree_render = true;
1661     // XXX: default reply for now, make this a better reply
1662     ysuccess(true);
1663 }
1664
1665 /*
1666  * Implementation of 'move [window|container] [to] [absolute] position <px> [px] <px> [px]
1667  *
1668  */
1669 void cmd_move_window_to_position(I3_CMD, const char *method, long x, long y) {
1670     bool has_error = false;
1671
1672     owindow *current;
1673     HANDLE_EMPTY_MATCH;
1674
1675     TAILQ_FOREACH(current, &owindows, owindows) {
1676         if (!con_is_floating(current->con)) {
1677             ELOG("Cannot change position. The window/container is not floating\n");
1678
1679             if (!has_error) {
1680                 yerror("Cannot change position of a window/container because it is not floating.");
1681                 has_error = true;
1682             }
1683
1684             continue;
1685         }
1686
1687         if (strcmp(method, "absolute") == 0) {
1688             current->con->parent->rect.x = x;
1689             current->con->parent->rect.y = y;
1690
1691             DLOG("moving to absolute position %ld %ld\n", x, y);
1692             floating_maybe_reassign_ws(current->con->parent);
1693             cmd_output->needs_tree_render = true;
1694         }
1695
1696         if (strcmp(method, "position") == 0) {
1697             Rect newrect = current->con->parent->rect;
1698
1699             DLOG("moving to position %ld %ld\n", x, y);
1700             newrect.x = x;
1701             newrect.y = y;
1702
1703             floating_reposition(current->con->parent, newrect);
1704         }
1705     }
1706
1707     // XXX: default reply for now, make this a better reply
1708     if (!has_error)
1709         ysuccess(true);
1710 }
1711
1712 /*
1713  * Implementation of 'move [window|container] [to] [absolute] position center
1714  *
1715  */
1716 void cmd_move_window_to_center(I3_CMD, const char *method) {
1717     bool has_error = false;
1718     HANDLE_EMPTY_MATCH;
1719
1720     owindow *current;
1721     TAILQ_FOREACH(current, &owindows, owindows) {
1722         Con *floating_con = con_inside_floating(current->con);
1723         if (floating_con == NULL) {
1724             ELOG("con %p / %s is not floating, cannot move it to the center.\n",
1725                  current->con, current->con->name);
1726
1727             if (!has_error) {
1728                 yerror("Cannot change position of a window/container because it is not floating.");
1729                 has_error = true;
1730             }
1731
1732             continue;
1733         }
1734
1735         if (strcmp(method, "absolute") == 0) {
1736             DLOG("moving to absolute center\n");
1737             floating_center(floating_con, croot->rect);
1738
1739             floating_maybe_reassign_ws(floating_con);
1740             cmd_output->needs_tree_render = true;
1741         }
1742
1743         if (strcmp(method, "position") == 0) {
1744             DLOG("moving to center\n");
1745             floating_center(floating_con, con_get_workspace(floating_con)->rect);
1746
1747             cmd_output->needs_tree_render = true;
1748         }
1749     }
1750
1751     // XXX: default reply for now, make this a better reply
1752     if (!has_error)
1753         ysuccess(true);
1754 }
1755
1756 /*
1757  * Implementation of 'move [window|container] [to] position mouse'
1758  *
1759  */
1760 void cmd_move_window_to_mouse(I3_CMD) {
1761     HANDLE_EMPTY_MATCH;
1762
1763     owindow *current;
1764     TAILQ_FOREACH(current, &owindows, owindows) {
1765         Con *floating_con = con_inside_floating(current->con);
1766         if (floating_con == NULL) {
1767             DLOG("con %p / %s is not floating, cannot move it to the mouse position.\n",
1768                  current->con, current->con->name);
1769             continue;
1770         }
1771
1772         DLOG("moving floating container %p / %s to cursor position\n", floating_con, floating_con->name);
1773         floating_move_to_pointer(floating_con);
1774     }
1775
1776     cmd_output->needs_tree_render = true;
1777     ysuccess(true);
1778 }
1779
1780 /*
1781  * Implementation of 'move scratchpad'.
1782  *
1783  */
1784 void cmd_move_scratchpad(I3_CMD) {
1785     DLOG("should move window to scratchpad\n");
1786     owindow *current;
1787
1788     HANDLE_EMPTY_MATCH;
1789
1790     TAILQ_FOREACH(current, &owindows, owindows) {
1791         DLOG("matching: %p / %s\n", current->con, current->con->name);
1792         scratchpad_move(current->con);
1793     }
1794
1795     cmd_output->needs_tree_render = true;
1796     // XXX: default reply for now, make this a better reply
1797     ysuccess(true);
1798 }
1799
1800 /*
1801  * Implementation of 'scratchpad show'.
1802  *
1803  */
1804 void cmd_scratchpad_show(I3_CMD) {
1805     DLOG("should show scratchpad window\n");
1806     owindow *current;
1807
1808     if (match_is_empty(current_match)) {
1809         scratchpad_show(NULL);
1810     } else {
1811         TAILQ_FOREACH(current, &owindows, owindows) {
1812             DLOG("matching: %p / %s\n", current->con, current->con->name);
1813             scratchpad_show(current->con);
1814         }
1815     }
1816
1817     cmd_output->needs_tree_render = true;
1818     // XXX: default reply for now, make this a better reply
1819     ysuccess(true);
1820 }
1821
1822 /*
1823  * Implementation of 'title_format <format>'
1824  *
1825  */
1826 void cmd_title_format(I3_CMD, const char *format) {
1827     DLOG("setting title_format to \"%s\"\n", format);
1828     HANDLE_EMPTY_MATCH;
1829
1830     owindow *current;
1831     TAILQ_FOREACH(current, &owindows, owindows) {
1832         DLOG("setting title_format for %p / %s\n", current->con, current->con->name);
1833         FREE(current->con->title_format);
1834
1835         /* If we only display the title without anything else, we can skip the parsing step,
1836          * so we remove the title format altogether. */
1837         if (strcasecmp(format, "%title") != 0) {
1838             current->con->title_format = sstrdup(format);
1839
1840             if (current->con->window != NULL) {
1841                 i3String *formatted_title = con_parse_title_format(current->con);
1842                 ewmh_update_visible_name(current->con->window->id, i3string_as_utf8(formatted_title));
1843                 I3STRING_FREE(formatted_title);
1844             }
1845         } else {
1846             if (current->con->window != NULL) {
1847                 /* We can remove _NET_WM_VISIBLE_NAME since we don't display a custom title. */
1848                 ewmh_update_visible_name(current->con->window->id, NULL);
1849             }
1850         }
1851
1852         if (current->con->window != NULL) {
1853             /* Make sure the window title is redrawn immediately. */
1854             current->con->window->name_x_changed = true;
1855         } else {
1856             /* For windowless containers we also need to force the redrawing. */
1857             FREE(current->con->deco_render_params);
1858         }
1859     }
1860
1861     cmd_output->needs_tree_render = true;
1862     ysuccess(true);
1863 }
1864
1865 /*
1866  * Implementation of 'rename workspace [<name>] to <name>'
1867  *
1868  */
1869 void cmd_rename_workspace(I3_CMD, const char *old_name, const char *new_name) {
1870     if (strncasecmp(new_name, "__", strlen("__")) == 0) {
1871         LOG("Cannot rename workspace to \"%s\": names starting with __ are i3-internal.\n", new_name);
1872         ysuccess(false);
1873         return;
1874     }
1875     if (old_name) {
1876         LOG("Renaming workspace \"%s\" to \"%s\"\n", old_name, new_name);
1877     } else {
1878         LOG("Renaming current workspace to \"%s\"\n", new_name);
1879     }
1880
1881     Con *output, *workspace = NULL;
1882     if (old_name) {
1883         TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
1884         GREP_FIRST(workspace, output_get_content(output),
1885                    !strcasecmp(child->name, old_name));
1886     } else {
1887         workspace = con_get_workspace(focused);
1888         old_name = workspace->name;
1889     }
1890
1891     if (!workspace) {
1892         yerror("Old workspace \"%s\" not found", old_name);
1893         return;
1894     }
1895
1896     Con *check_dest = NULL;
1897     TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
1898     GREP_FIRST(check_dest, output_get_content(output),
1899                !strcasecmp(child->name, new_name));
1900
1901     /* If check_dest == workspace, the user might be changing the case of the
1902      * workspace, or it might just be a no-op. */
1903     if (check_dest != NULL && check_dest != workspace) {
1904         yerror("New workspace \"%s\" already exists", new_name);
1905         return;
1906     }
1907
1908     /* Change the name and try to parse it as a number. */
1909     /* old_name might refer to workspace->name, so copy it before free()ing */
1910     char *old_name_copy = sstrdup(old_name);
1911     FREE(workspace->name);
1912     workspace->name = sstrdup(new_name);
1913
1914     workspace->num = ws_name_to_number(new_name);
1915     LOG("num = %d\n", workspace->num);
1916
1917     /* By re-attaching, the sort order will be correct afterwards. */
1918     Con *previously_focused = focused;
1919     Con *parent = workspace->parent;
1920     con_detach(workspace);
1921     con_attach(workspace, parent, false);
1922
1923     /* Move the workspace to the correct output if it has an assignment */
1924     struct Workspace_Assignment *assignment = NULL;
1925     TAILQ_FOREACH(assignment, &ws_assignments, ws_assignments) {
1926         if (assignment->output == NULL)
1927             continue;
1928         if (strcmp(assignment->name, workspace->name) != 0 && (!name_is_digits(assignment->name) || ws_name_to_number(assignment->name) != workspace->num)) {
1929             continue;
1930         }
1931
1932         workspace_move_to_output(workspace, assignment->output);
1933
1934         if (previously_focused)
1935             workspace_show(con_get_workspace(previously_focused));
1936
1937         break;
1938     }
1939
1940     /* Restore the previous focus since con_attach messes with the focus. */
1941     con_focus(previously_focused);
1942
1943     cmd_output->needs_tree_render = true;
1944     ysuccess(true);
1945
1946     ipc_send_workspace_event("rename", workspace, NULL);
1947     ewmh_update_desktop_names();
1948     ewmh_update_desktop_viewport();
1949     ewmh_update_current_desktop();
1950
1951     startup_sequence_rename_workspace(old_name_copy, new_name);
1952     free(old_name_copy);
1953 }
1954
1955 /*
1956  * Implementation of 'bar mode dock|hide|invisible|toggle [<bar_id>]'
1957  *
1958  */
1959 bool cmd_bar_mode(const char *bar_mode, const char *bar_id) {
1960     int mode = M_DOCK;
1961     bool toggle = false;
1962     if (strcmp(bar_mode, "dock") == 0)
1963         mode = M_DOCK;
1964     else if (strcmp(bar_mode, "hide") == 0)
1965         mode = M_HIDE;
1966     else if (strcmp(bar_mode, "invisible") == 0)
1967         mode = M_INVISIBLE;
1968     else if (strcmp(bar_mode, "toggle") == 0)
1969         toggle = true;
1970     else {
1971         ELOG("Unknown bar mode \"%s\", this is a mismatch between code and parser spec.\n", bar_mode);
1972         return false;
1973     }
1974
1975     bool changed_sth = false;
1976     Barconfig *current = NULL;
1977     TAILQ_FOREACH(current, &barconfigs, configs) {
1978         if (bar_id && strcmp(current->id, bar_id) != 0)
1979             continue;
1980
1981         if (toggle)
1982             mode = (current->mode + 1) % 2;
1983
1984         DLOG("Changing bar mode of bar_id '%s' to '%s (%d)'\n", current->id, bar_mode, mode);
1985         current->mode = mode;
1986         changed_sth = true;
1987
1988         if (bar_id)
1989             break;
1990     }
1991
1992     if (bar_id && !changed_sth) {
1993         DLOG("Changing bar mode of bar_id %s failed, bar_id not found.\n", bar_id);
1994         return false;
1995     }
1996
1997     return true;
1998 }
1999
2000 /*
2001  * Implementation of 'bar hidden_state hide|show|toggle [<bar_id>]'
2002  *
2003  */
2004 bool cmd_bar_hidden_state(const char *bar_hidden_state, const char *bar_id) {
2005     int hidden_state = S_SHOW;
2006     bool toggle = false;
2007     if (strcmp(bar_hidden_state, "hide") == 0)
2008         hidden_state = S_HIDE;
2009     else if (strcmp(bar_hidden_state, "show") == 0)
2010         hidden_state = S_SHOW;
2011     else if (strcmp(bar_hidden_state, "toggle") == 0)
2012         toggle = true;
2013     else {
2014         ELOG("Unknown bar state \"%s\", this is a mismatch between code and parser spec.\n", bar_hidden_state);
2015         return false;
2016     }
2017
2018     bool changed_sth = false;
2019     Barconfig *current = NULL;
2020     TAILQ_FOREACH(current, &barconfigs, configs) {
2021         if (bar_id && strcmp(current->id, bar_id) != 0)
2022             continue;
2023
2024         if (toggle)
2025             hidden_state = (current->hidden_state + 1) % 2;
2026
2027         DLOG("Changing bar hidden_state of bar_id '%s' to '%s (%d)'\n", current->id, bar_hidden_state, hidden_state);
2028         current->hidden_state = hidden_state;
2029         changed_sth = true;
2030
2031         if (bar_id)
2032             break;
2033     }
2034
2035     if (bar_id && !changed_sth) {
2036         DLOG("Changing bar hidden_state of bar_id %s failed, bar_id not found.\n", bar_id);
2037         return false;
2038     }
2039
2040     return true;
2041 }
2042
2043 /*
2044  * Implementation of 'bar (hidden_state hide|show|toggle)|(mode dock|hide|invisible|toggle) [<bar_id>]'
2045  *
2046  */
2047 void cmd_bar(I3_CMD, const char *bar_type, const char *bar_value, const char *bar_id) {
2048     bool ret;
2049     if (strcmp(bar_type, "mode") == 0)
2050         ret = cmd_bar_mode(bar_value, bar_id);
2051     else if (strcmp(bar_type, "hidden_state") == 0)
2052         ret = cmd_bar_hidden_state(bar_value, bar_id);
2053     else {
2054         ELOG("Unknown bar option type \"%s\", this is a mismatch between code and parser spec.\n", bar_type);
2055         ret = false;
2056     }
2057
2058     ysuccess(ret);
2059     if (!ret)
2060         return;
2061
2062     update_barconfig();
2063 }
2064
2065 /*
2066  * Implementation of 'shmlog <size>|toggle|on|off'
2067  *
2068  */
2069 void cmd_shmlog(I3_CMD, const char *argument) {
2070     if (!strcmp(argument, "toggle"))
2071         /* Toggle shm log, if size is not 0. If it is 0, set it to default. */
2072         shmlog_size = shmlog_size ? -shmlog_size : default_shmlog_size;
2073     else if (!strcmp(argument, "on"))
2074         shmlog_size = default_shmlog_size;
2075     else if (!strcmp(argument, "off"))
2076         shmlog_size = 0;
2077     else {
2078         /* If shm logging now, restart logging with the new size. */
2079         if (shmlog_size > 0) {
2080             shmlog_size = 0;
2081             LOG("Restarting shm logging...\n");
2082             init_logging();
2083         }
2084         shmlog_size = atoi(argument);
2085         /* Make a weakly attempt at ensuring the argument is valid. */
2086         if (shmlog_size <= 0)
2087             shmlog_size = default_shmlog_size;
2088     }
2089     LOG("%s shm logging\n", shmlog_size > 0 ? "Enabling" : "Disabling");
2090     init_logging();
2091     update_shmlog_atom();
2092     // XXX: default reply for now, make this a better reply
2093     ysuccess(true);
2094 }
2095
2096 /*
2097  * Implementation of 'debuglog toggle|on|off'
2098  *
2099  */
2100 void cmd_debuglog(I3_CMD, const char *argument) {
2101     bool logging = get_debug_logging();
2102     if (!strcmp(argument, "toggle")) {
2103         LOG("%s debug logging\n", logging ? "Disabling" : "Enabling");
2104         set_debug_logging(!logging);
2105     } else if (!strcmp(argument, "on") && !logging) {
2106         LOG("Enabling debug logging\n");
2107         set_debug_logging(true);
2108     } else if (!strcmp(argument, "off") && logging) {
2109         LOG("Disabling debug logging\n");
2110         set_debug_logging(false);
2111     }
2112     // XXX: default reply for now, make this a better reply
2113     ysuccess(true);
2114 }