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

   1 #undef I3__FILE__
   2 #define I3__FILE__ "commands.c"
   3 /*
   4  * vim:ts=4:sw=4:expandtab
   5  *
   6  * i3 - an improved dynamic tiling window manager
   7  * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
   8  *
   9  * commands.c: all command functions (see commands_parser.c)
  10  *
  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 "all.h"
  21 #include "shmlog.h"
  22
  23 // Macros to make the YAJL API a bit easier to use.
  24 #define y(x, ...) (cmd_output->json_gen != NULL ? yajl_gen_##x(cmd_output->json_gen, ##__VA_ARGS__) : 0)
  25 #define ystr(str) (cmd_output->json_gen != NULL ? yajl_gen_string(cmd_output->json_gen, (unsigned char *)str, strlen(str)) : 0)
  26 #define ysuccess(success)                   \
  27     do {                                    \
  28         if (cmd_output->json_gen != NULL) { \
  29             y(map_open);                    \
  30             ystr("success");                \
  31             y(bool, success);               \
  32             y(map_close);                   \
  33         }                                   \
  34     } while (0)
  35 #define yerror(format, ...)                             \
  36     do {                                                \
  37         if (cmd_output->json_gen != NULL) {             \
  38             char *message;                              \
  39             sasprintf(&message, format, ##__VA_ARGS__); \
  40             y(map_open);                                \
  41             ystr("success");                            \
  42             y(bool, false);                             \
  43             ystr("error");                              \
  44             ystr(message);                              \
  45             y(map_close);                               \
  46             free(message);                              \
  47         }                                               \
  48     } while (0)
  49
  50 /** If an error occurred during parsing of the criteria, we want to exit instead
  51  * of relying on fallback behavior. See #2091. */
  52 #define HANDLE_INVALID_MATCH                                   \
  53     do {                                                       \
  54         if (current_match->error != NULL) {                    \
  55             yerror("Invalid match: %s", current_match->error); \
  56             return;                                            \
  57         }                                                      \
  58     } while (0)
  59
  60 /** When the command did not include match criteria (!), we use the currently
  61  * focused container. Do not confuse this case with a command which included
  62  * criteria but which did not match any windows. This macro has to be called in
  63  * every command.
  64  */
  65 #define HANDLE_EMPTY_MATCH                              \
  66     do {                                                \
  67         HANDLE_INVALID_MATCH;                           \
  68                                                         \
  69         if (match_is_empty(current_match)) {            \
  70             while (!TAILQ_EMPTY(&owindows)) {           \
  71                 owindow *ow = TAILQ_FIRST(&owindows);   \
  72                 TAILQ_REMOVE(&owindows, ow, owindows);  \
  73                 free(ow);                               \
  74             }                                           \
  75             owindow *ow = smalloc(sizeof(owindow));     \
  76             ow->con = focused;                          \
  77             TAILQ_INIT(&owindows);                      \
  78             TAILQ_INSERT_TAIL(&owindows, ow, owindows); \
  79         }                                               \
  80     } while (0)
  81
  82 /*
  83  * Returns true if a is definitely greater than b (using the given epsilon)
  84  *
  85  */
  86 static bool definitelyGreaterThan(float a, float b, float epsilon) {
  87     return (a - b) > ((fabs(a) < fabs(b) ? fabs(b) : fabs(a)) * epsilon);
  88 }
  89
  90 /*
  91  * Checks whether we switched to a new workspace and returns false in that case,
  92  * signaling that further workspace switching should be done by the calling function
  93  * If not, calls workspace_back_and_forth() if workspace_auto_back_and_forth is set
  94  * and return true, signaling that no further workspace switching should occur in the calling function.
  95  *
  96  */
  97 static bool maybe_back_and_forth(struct CommandResultIR *cmd_output, const char *name) {
  98     Con *ws = con_get_workspace(focused);
  99
 100     /* If we switched to a different workspace, do nothing */
 101     if (strcmp(ws->name, name) != 0)
 102         return false;
 103
 104     DLOG("This workspace is already focused.\n");
 105     if (config.workspace_auto_back_and_forth) {
 106         workspace_back_and_forth();
 107         cmd_output->needs_tree_render = true;
 108     }
 109     return true;
 110 }
 111
 112 /*
 113  * Return the passed workspace unless it is the current one and auto back and
 114  * forth is enabled, in which case the back_and_forth workspace is returned.
 115  */
 116 static Con *maybe_auto_back_and_forth_workspace(Con *workspace) {
 117     Con *current, *baf;
 118
 119     if (!config.workspace_auto_back_and_forth)
 120         return workspace;
 121
 122     current = con_get_workspace(focused);
 123
 124     if (current == workspace) {
 125         baf = workspace_back_and_forth_get();
 126         if (baf != NULL) {
 127             DLOG("Substituting workspace with back_and_forth, as it is focused.\n");
 128             return baf;
 129         }
 130     }
 131
 132     return workspace;
 133 }
 134
 135 /*******************************************************************************
 136  * Criteria functions.
 137  ******************************************************************************/
 138
 139 /*
 140  * Helper data structure for an operation window (window on which the operation
 141  * will be performed). Used to build the TAILQ owindows.
 142  *
 143  */
 144 typedef struct owindow {
 145     Con *con;
 146     TAILQ_ENTRY(owindow) owindows;
 147 } owindow;
 148
 149 typedef TAILQ_HEAD(owindows_head, owindow) owindows_head;
 150
 151 static owindows_head owindows;
 152
 153 /*
 154  * Initializes the specified 'Match' data structure and the initial state of
 155  * commands.c for matching target windows of a command.
 156  *
 157  */
 158 void cmd_criteria_init(I3_CMD) {
 159     Con *con;
 160     owindow *ow;
 161
 162     DLOG("Initializing criteria, current_match = %p\n", current_match);
 163     match_free(current_match);
 164     match_init(current_match);
 165     while (!TAILQ_EMPTY(&owindows)) {
 166         ow = TAILQ_FIRST(&owindows);
 167         TAILQ_REMOVE(&owindows, ow, owindows);
 168         free(ow);
 169     }
 170     TAILQ_INIT(&owindows);
 171     /* copy all_cons */
 172     TAILQ_FOREACH(con, &all_cons, all_cons) {
 173         ow = smalloc(sizeof(owindow));
 174         ow->con = con;
 175         TAILQ_INSERT_TAIL(&owindows, ow, owindows);
 176     }
 177 }
 178
 179 /*
 180  * A match specification just finished (the closing square bracket was found),
 181  * so we filter the list of owindows.
 182  *
 183  */
 184 void cmd_criteria_match_windows(I3_CMD) {
 185     owindow *next, *current;
 186
 187     DLOG("match specification finished, matching...\n");
 188     /* copy the old list head to iterate through it and start with a fresh
 189      * list which will contain only matching windows */
 190     struct owindows_head old = owindows;
 191     TAILQ_INIT(&owindows);
 192     for (next = TAILQ_FIRST(&old); next != TAILQ_END(&old);) {
 193         /* make a copy of the next pointer and advance the pointer to the
 194          * next element as we are going to invalidate the element’s
 195          * next/prev pointers by calling TAILQ_INSERT_TAIL later */
 196         current = next;
 197         next = TAILQ_NEXT(next, owindows);
 198
 199         DLOG("checking if con %p / %s matches\n", current->con, current->con->name);
 200
 201         /* We use this flag to prevent matching on window-less containers if
 202          * only window-specific criteria were specified. */
 203         bool accept_match = false;
 204
 205         if (current_match->con_id != NULL) {
 206             accept_match = true;
 207
 208             if (current_match->con_id == current->con) {
 209                 DLOG("con_id matched.\n");
 210             } else {
 211                 DLOG("con_id does not match.\n");
 212                 FREE(current);
 213                 continue;
 214             }
 215         }
 216
 217         if (current_match->mark != NULL && !TAILQ_EMPTY(&(current->con->marks_head))) {
 218             accept_match = true;
 219             bool matched_by_mark = false;
 220
 221             mark_t *mark;
 222             TAILQ_FOREACH(mark, &(current->con->marks_head), marks) {
 223                 if (!regex_matches(current_match->mark, mark->name))
 224                     continue;
 225
 226                 DLOG("match by mark\n");
 227                 matched_by_mark = true;
 228                 break;
 229             }
 230
 231             if (!matched_by_mark) {
 232                 DLOG("mark does not match.\n");
 233                 FREE(current);
 234                 continue;
 235             }
 236         }
 237
 238         if (current->con->window != NULL) {
 239             if (match_matches_window(current_match, current->con->window)) {
 240                 DLOG("matches window!\n");
 241                 accept_match = true;
 242             } else {
 243                 DLOG("doesn't match\n");
 244                 FREE(current);
 245                 continue;
 246             }
 247         }
 248
 249         if (accept_match) {
 250             TAILQ_INSERT_TAIL(&owindows, current, owindows);
 251         } else {
 252             FREE(current);
 253             continue;
 254         }
 255     }
 256
 257     TAILQ_FOREACH(current, &owindows, owindows) {
 258         DLOG("matching: %p / %s\n", current->con, current->con->name);
 259     }
 260 }
 261
 262 /*
 263  * Interprets a ctype=cvalue pair and adds it to the current match
 264  * specification.
 265  *
 266  */
 267 void cmd_criteria_add(I3_CMD, const char *ctype, const char *cvalue) {
 268     match_parse_property(current_match, ctype, cvalue);
 269 }
 270
 271 /*
 272  * Implementation of 'move [window|container] [to] workspace
 273  * next|prev|next_on_output|prev_on_output|current'.
 274  *
 275  */
 276 void cmd_move_con_to_workspace(I3_CMD, const char *which) {
 277     owindow *current;
 278
 279     DLOG("which=%s\n", which);
 280
 281     /* We have nothing to move:
 282      *  when criteria was specified but didn't match any window or
 283      *  when criteria wasn't specified and we don't have any window focused. */
 284     if ((!match_is_empty(current_match) && TAILQ_EMPTY(&owindows)) ||
 285         (match_is_empty(current_match) && focused->type == CT_WORKSPACE &&
 286          !con_has_children(focused))) {
 287         ysuccess(false);
 288         return;
 289     }
 290
 291     HANDLE_EMPTY_MATCH;
 292
 293     /* get the workspace */
 294     Con *ws;
 295     if (strcmp(which, "next") == 0)
 296         ws = workspace_next();
 297     else if (strcmp(which, "prev") == 0)
 298         ws = workspace_prev();
 299     else if (strcmp(which, "next_on_output") == 0)
 300         ws = workspace_next_on_output();
 301     else if (strcmp(which, "prev_on_output") == 0)
 302         ws = workspace_prev_on_output();
 303     else if (strcmp(which, "current") == 0)
 304         ws = con_get_workspace(focused);
 305     else {
 306         ELOG("BUG: called with which=%s\n", which);
 307         ysuccess(false);
 308         return;
 309     }
 310
 311     TAILQ_FOREACH(current, &owindows, owindows) {
 312         DLOG("matching: %p / %s\n", current->con, current->con->name);
 313         con_move_to_workspace(current->con, ws, true, false, false);
 314     }
 315
 316     cmd_output->needs_tree_render = true;
 317     // XXX: default reply for now, make this a better reply
 318     ysuccess(true);
 319 }
 320
 321 /**
 322  * Implementation of 'move [window|container] [to] workspace back_and_forth'.
 323  *
 324  */
 325 void cmd_move_con_to_workspace_back_and_forth(I3_CMD) {
 326     owindow *current;
 327     Con *ws;
 328
 329     ws = workspace_back_and_forth_get();
 330
 331     if (ws == NULL) {
 332         yerror("No workspace was previously active.");
 333         return;
 334     }
 335
 336     HANDLE_EMPTY_MATCH;
 337
 338     TAILQ_FOREACH(current, &owindows, owindows) {
 339         DLOG("matching: %p / %s\n", current->con, current->con->name);
 340         con_move_to_workspace(current->con, ws, true, false, false);
 341     }
 342
 343     cmd_output->needs_tree_render = true;
 344     // XXX: default reply for now, make this a better reply
 345     ysuccess(true);
 346 }
 347
 348 /*
 349  * Implementation of 'move [--no-auto-back-and-forth] [window|container] [to] workspace <name>'.
 350  *
 351  */
 352 void cmd_move_con_to_workspace_name(I3_CMD, const char *name, const char *_no_auto_back_and_forth) {
 353     if (strncasecmp(name, "__", strlen("__")) == 0) {
 354         LOG("You cannot move containers to i3-internal workspaces (\"%s\").\n", name);
 355         ysuccess(false);
 356         return;
 357     }
 358
 359     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 360     owindow *current;
 361
 362     /* We have nothing to move:
 363      *  when criteria was specified but didn't match any window or
 364      *  when criteria wasn't specified and we don't have any window focused. */
 365     if (!match_is_empty(current_match) && TAILQ_EMPTY(&owindows)) {
 366         ELOG("No windows match your criteria, cannot move.\n");
 367         ysuccess(false);
 368         return;
 369     } else if (match_is_empty(current_match) && focused->type == CT_WORKSPACE &&
 370                !con_has_children(focused)) {
 371         ysuccess(false);
 372         return;
 373     }
 374
 375     LOG("should move window to workspace %s\n", name);
 376     /* get the workspace */
 377     Con *ws = workspace_get(name, NULL);
 378
 379     if (!no_auto_back_and_forth)
 380         ws = maybe_auto_back_and_forth_workspace(ws);
 381
 382     HANDLE_EMPTY_MATCH;
 383
 384     TAILQ_FOREACH(current, &owindows, owindows) {
 385         DLOG("matching: %p / %s\n", current->con, current->con->name);
 386         con_move_to_workspace(current->con, ws, true, false, false);
 387     }
 388
 389     cmd_output->needs_tree_render = true;
 390     // XXX: default reply for now, make this a better reply
 391     ysuccess(true);
 392 }
 393
 394 /*
 395  * Implementation of 'move [--no-auto-back-and-forth] [window|container] [to] workspace number <name>'.
 396  *
 397  */
 398 void cmd_move_con_to_workspace_number(I3_CMD, const char *which, const char *_no_auto_back_and_forth) {
 399     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 400     owindow *current;
 401
 402     /* We have nothing to move:
 403      *  when criteria was specified but didn't match any window or
 404      *  when criteria wasn't specified and we don't have any window focused. */
 405     if ((!match_is_empty(current_match) && TAILQ_EMPTY(&owindows)) ||
 406         (match_is_empty(current_match) && focused->type == CT_WORKSPACE &&
 407          !con_has_children(focused))) {
 408         ysuccess(false);
 409         return;
 410     }
 411
 412     LOG("should move window to workspace %s\n", which);
 413     /* get the workspace */
 414     Con *output, *workspace = NULL;
 415
 416     long parsed_num = ws_name_to_number(which);
 417
 418     if (parsed_num == -1) {
 419         LOG("Could not parse initial part of \"%s\" as a number.\n", which);
 420         yerror("Could not parse number \"%s\"", which);
 421         return;
 422     }
 423
 424     TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
 425     GREP_FIRST(workspace, output_get_content(output),
 426                child->num == parsed_num);
 427
 428     if (!workspace) {
 429         workspace = workspace_get(which, NULL);
 430     }
 431
 432     if (!no_auto_back_and_forth)
 433         workspace = maybe_auto_back_and_forth_workspace(workspace);
 434
 435     HANDLE_EMPTY_MATCH;
 436
 437     TAILQ_FOREACH(current, &owindows, owindows) {
 438         DLOG("matching: %p / %s\n", current->con, current->con->name);
 439         con_move_to_workspace(current->con, workspace, true, false, false);
 440     }
 441
 442     cmd_output->needs_tree_render = true;
 443     // XXX: default reply for now, make this a better reply
 444     ysuccess(true);
 445 }
 446
 447 static void cmd_resize_floating(I3_CMD, const char *way, const char *direction, Con *floating_con, int px) {
 448     LOG("floating resize\n");
 449     Rect old_rect = floating_con->rect;
 450     Con *focused_con = con_descend_focused(floating_con);
 451
 452     /* ensure that resize will take place even if pixel increment is smaller than
 453      * height increment or width increment.
 454      * fixes #1011 */
 455     const i3Window *window = focused_con->window;
 456     if (window != NULL) {
 457         if (strcmp(direction, "up") == 0 || strcmp(direction, "down") == 0 ||
 458             strcmp(direction, "height") == 0) {
 459             if (px < 0)
 460                 px = (-px < window->height_increment) ? -window->height_increment : px;
 461             else
 462                 px = (px < window->height_increment) ? window->height_increment : px;
 463         } else if (strcmp(direction, "left") == 0 || strcmp(direction, "right") == 0) {
 464             if (px < 0)
 465                 px = (-px < window->width_increment) ? -window->width_increment : px;
 466             else
 467                 px = (px < window->width_increment) ? window->width_increment : px;
 468         }
 469     }
 470
 471     if (strcmp(direction, "up") == 0) {
 472         floating_con->rect.height += px;
 473     } else if (strcmp(direction, "down") == 0 || strcmp(direction, "height") == 0) {
 474         floating_con->rect.height += px;
 475     } else if (strcmp(direction, "left") == 0) {
 476         floating_con->rect.width += px;
 477     } else {
 478         floating_con->rect.width += px;
 479     }
 480
 481     floating_check_size(floating_con);
 482
 483     /* Did we actually resize anything or did the size constraints prevent us?
 484      * If we could not resize, exit now to not move the window. */
 485     if (memcmp(&old_rect, &(floating_con->rect), sizeof(Rect)) == 0)
 486         return;
 487
 488     if (strcmp(direction, "up") == 0) {
 489         floating_con->rect.y -= (floating_con->rect.height - old_rect.height);
 490     } else if (strcmp(direction, "left") == 0) {
 491         floating_con->rect.x -= (floating_con->rect.width - old_rect.width);
 492     }
 493
 494     /* If this is a scratchpad window, don't auto center it from now on. */
 495     if (floating_con->scratchpad_state == SCRATCHPAD_FRESH)
 496         floating_con->scratchpad_state = SCRATCHPAD_CHANGED;
 497 }
 498
 499 static bool cmd_resize_tiling_direction(I3_CMD, Con *current, const char *way, const char *direction, int ppt) {
 500     LOG("tiling resize\n");
 501     Con *second = NULL;
 502     Con *first = current;
 503     direction_t search_direction;
 504     if (!strcmp(direction, "left"))
 505         search_direction = D_LEFT;
 506     else if (!strcmp(direction, "right"))
 507         search_direction = D_RIGHT;
 508     else if (!strcmp(direction, "up"))
 509         search_direction = D_UP;
 510     else
 511         search_direction = D_DOWN;
 512
 513     bool res = resize_find_tiling_participants(&first, &second, search_direction);
 514     if (!res) {
 515         LOG("No second container in this direction found.\n");
 516         ysuccess(false);
 517         return false;
 518     }
 519
 520     /* get the default percentage */
 521     int children = con_num_children(first->parent);
 522     LOG("ins. %d children\n", children);
 523     double percentage = 1.0 / children;
 524     LOG("default percentage = %f\n", percentage);
 525
 526     /* resize */
 527     LOG("second->percent = %f\n", second->percent);
 528     LOG("first->percent before = %f\n", first->percent);
 529     if (first->percent == 0.0)
 530         first->percent = percentage;
 531     if (second->percent == 0.0)
 532         second->percent = percentage;
 533     double new_first_percent = first->percent + ((double)ppt / 100.0);
 534     double new_second_percent = second->percent - ((double)ppt / 100.0);
 535     LOG("new_first_percent = %f\n", new_first_percent);
 536     LOG("new_second_percent = %f\n", new_second_percent);
 537     /* Ensure that the new percentages are positive and greater than
 538      * 0.05 to have a reasonable minimum size. */
 539     if (definitelyGreaterThan(new_first_percent, 0.05, DBL_EPSILON) &&
 540         definitelyGreaterThan(new_second_percent, 0.05, DBL_EPSILON)) {
 541         first->percent += ((double)ppt / 100.0);
 542         second->percent -= ((double)ppt / 100.0);
 543         LOG("first->percent after = %f\n", first->percent);
 544         LOG("second->percent after = %f\n", second->percent);
 545     } else {
 546         LOG("Not resizing, already at minimum size\n");
 547     }
 548
 549     return true;
 550 }
 551
 552 static bool cmd_resize_tiling_width_height(I3_CMD, Con *current, const char *way, const char *direction, int ppt) {
 553     LOG("width/height resize\n");
 554     /* get the appropriate current container (skip stacked/tabbed cons) */
 555     while (current->parent->layout == L_STACKED ||
 556            current->parent->layout == L_TABBED)
 557         current = current->parent;
 558
 559     /* Then further go up until we find one with the matching orientation. */
 560     orientation_t search_orientation =
 561         (strcmp(direction, "width") == 0 ? HORIZ : VERT);
 562
 563     while (current->type != CT_WORKSPACE &&
 564            current->type != CT_FLOATING_CON &&
 565            (con_orientation(current->parent) != search_orientation || con_num_children(current->parent) == 1))
 566         current = current->parent;
 567
 568     /* get the default percentage */
 569     int children = con_num_children(current->parent);
 570     LOG("ins. %d children\n", children);
 571     double percentage = 1.0 / children;
 572     LOG("default percentage = %f\n", percentage);
 573
 574     orientation_t orientation = con_orientation(current->parent);
 575
 576     if ((orientation == HORIZ &&
 577          strcmp(direction, "height") == 0) ||
 578         (orientation == VERT &&
 579          strcmp(direction, "width") == 0)) {
 580         LOG("You cannot resize in that direction. Your focus is in a %s split container currently.\n",
 581             (orientation == HORIZ ? "horizontal" : "vertical"));
 582         ysuccess(false);
 583         return false;
 584     }
 585
 586     if (children == 1) {
 587         LOG("This is the only container, cannot resize.\n");
 588         ysuccess(false);
 589         return false;
 590     }
 591
 592     /* Ensure all the other children have a percentage set. */
 593     Con *child;
 594     TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
 595         LOG("child->percent = %f (child %p)\n", child->percent, child);
 596         if (child->percent == 0.0)
 597             child->percent = percentage;
 598     }
 599
 600     double new_current_percent = current->percent + ((double)ppt / 100.0);
 601     double subtract_percent = ((double)ppt / 100.0) / (children - 1);
 602     LOG("new_current_percent = %f\n", new_current_percent);
 603     LOG("subtract_percent = %f\n", subtract_percent);
 604     /* Ensure that the new percentages are positive and greater than
 605      * 0.05 to have a reasonable minimum size. */
 606     TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
 607         if (child == current)
 608             continue;
 609         if (!definitelyGreaterThan(child->percent - subtract_percent, 0.05, DBL_EPSILON)) {
 610             LOG("Not resizing, already at minimum size (child %p would end up with a size of %.f\n", child, child->percent - subtract_percent);
 611             ysuccess(false);
 612             return false;
 613         }
 614     }
 615     if (!definitelyGreaterThan(new_current_percent, 0.05, DBL_EPSILON)) {
 616         LOG("Not resizing, already at minimum size\n");
 617         ysuccess(false);
 618         return false;
 619     }
 620
 621     current->percent += ((double)ppt / 100.0);
 622     LOG("current->percent after = %f\n", current->percent);
 623
 624     TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
 625         if (child == current)
 626             continue;
 627         child->percent -= subtract_percent;
 628         LOG("child->percent after (%p) = %f\n", child, child->percent);
 629     }
 630
 631     return true;
 632 }
 633
 634 /*
 635  * Implementation of 'resize grow|shrink <direction> [<px> px] [or <ppt> ppt]'.
 636  *
 637  */
 638 void cmd_resize(I3_CMD, const char *way, const char *direction, long resize_px, long resize_ppt) {
 639     DLOG("resizing in way %s, direction %s, px %ld or ppt %ld\n", way, direction, resize_px, resize_ppt);
 640     if (strcmp(way, "shrink") == 0) {
 641         resize_px *= -1;
 642         resize_ppt *= -1;
 643     }
 644
 645     HANDLE_EMPTY_MATCH;
 646
 647     owindow *current;
 648     TAILQ_FOREACH(current, &owindows, owindows) {
 649         /* Don't handle dock windows (issue #1201) */
 650         if (current->con->window && current->con->window->dock) {
 651             DLOG("This is a dock window. Not resizing (con = %p)\n)", current->con);
 652             continue;
 653         }
 654
 655         Con *floating_con;
 656         if ((floating_con = con_inside_floating(current->con))) {
 657             cmd_resize_floating(current_match, cmd_output, way, direction, floating_con, resize_px);
 658         } else {
 659             if (strcmp(direction, "width") == 0 ||
 660                 strcmp(direction, "height") == 0) {
 661                 if (!cmd_resize_tiling_width_height(current_match, cmd_output,
 662                                                     current->con, way, direction, resize_ppt))
 663                     return;
 664             } else {
 665                 if (!cmd_resize_tiling_direction(current_match, cmd_output,
 666                                                  current->con, way, direction, resize_ppt))
 667                     return;
 668             }
 669         }
 670     }
 671
 672     cmd_output->needs_tree_render = true;
 673     // XXX: default reply for now, make this a better reply
 674     ysuccess(true);
 675 }
 676
 677 /*
 678  * Implementation of 'resize set <px> [px] <px> [px]'.
 679  *
 680  */
 681 void cmd_resize_set(I3_CMD, long cwidth, long cheight) {
 682     DLOG("resizing to %ldx%ld px\n", cwidth, cheight);
 683     if (cwidth <= 0 || cheight <= 0) {
 684         ELOG("Resize failed: dimensions cannot be negative (was %ldx%ld)\n", cwidth, cheight);
 685         return;
 686     }
 687
 688     HANDLE_EMPTY_MATCH;
 689
 690     owindow *current;
 691     TAILQ_FOREACH(current, &owindows, owindows) {
 692         Con *floating_con;
 693         if ((floating_con = con_inside_floating(current->con))) {
 694             floating_resize(floating_con, cwidth, cheight);
 695         } else {
 696             ELOG("Resize failed: %p not a floating container\n", current->con);
 697         }
 698     }
 699
 700     cmd_output->needs_tree_render = true;
 701     // XXX: default reply for now, make this a better reply
 702     ysuccess(true);
 703 }
 704
 705 /*
 706  * Implementation of 'border normal|pixel [<n>]', 'border none|1pixel|toggle'.
 707  *
 708  */
 709 void cmd_border(I3_CMD, const char *border_style_str, long border_width) {
 710     DLOG("border style should be changed to %s with border width %ld\n", border_style_str, border_width);
 711     owindow *current;
 712
 713     HANDLE_EMPTY_MATCH;
 714
 715     TAILQ_FOREACH(current, &owindows, owindows) {
 716         DLOG("matching: %p / %s\n", current->con, current->con->name);
 717         int border_style = current->con->border_style;
 718         int con_border_width = border_width;
 719
 720         if (strcmp(border_style_str, "toggle") == 0) {
 721             border_style++;
 722             border_style %= 3;
 723             if (border_style == BS_NORMAL)
 724                 con_border_width = 2;
 725             else if (border_style == BS_NONE)
 726                 con_border_width = 0;
 727             else if (border_style == BS_PIXEL)
 728                 con_border_width = 1;
 729         } else {
 730             if (strcmp(border_style_str, "normal") == 0) {
 731                 border_style = BS_NORMAL;
 732             } else if (strcmp(border_style_str, "pixel") == 0) {
 733                 border_style = BS_PIXEL;
 734             } else if (strcmp(border_style_str, "1pixel") == 0) {
 735                 border_style = BS_PIXEL;
 736                 con_border_width = 1;
 737             } else if (strcmp(border_style_str, "none") == 0) {
 738                 border_style = BS_NONE;
 739             } else {
 740                 ELOG("BUG: called with border_style=%s\n", border_style_str);
 741                 ysuccess(false);
 742                 return;
 743             }
 744         }
 745
 746         con_set_border_style(current->con, border_style, logical_px(con_border_width));
 747     }
 748
 749     cmd_output->needs_tree_render = true;
 750     // XXX: default reply for now, make this a better reply
 751     ysuccess(true);
 752 }
 753
 754 /*
 755  * Implementation of 'nop <comment>'.
 756  *
 757  */
 758 void cmd_nop(I3_CMD, const char *comment) {
 759     LOG("-------------------------------------------------\n");
 760     LOG("  NOP: %s\n", comment);
 761     LOG("-------------------------------------------------\n");
 762 }
 763
 764 /*
 765  * Implementation of 'append_layout <path>'.
 766  *
 767  */
 768 void cmd_append_layout(I3_CMD, const char *cpath) {
 769     char *path = sstrdup(cpath);
 770     LOG("Appending layout \"%s\"\n", path);
 771
 772     /* Make sure we allow paths like '~/.i3/layout.json' */
 773     path = resolve_tilde(path);
 774
 775     json_content_t content = json_determine_content(path);
 776     LOG("JSON content = %d\n", content);
 777     if (content == JSON_CONTENT_UNKNOWN) {
 778         ELOG("Could not determine the contents of \"%s\", not loading.\n", path);
 779         yerror("Could not determine the contents of \"%s\".", path);
 780         free(path);
 781         return;
 782     }
 783
 784     Con *parent = focused;
 785     if (content == JSON_CONTENT_WORKSPACE) {
 786         parent = output_get_content(con_get_output(parent));
 787     } else {
 788         /* We need to append the layout to a split container, since a leaf
 789          * container must not have any children (by definition).
 790          * Note that we explicitly check for workspaces, since they are okay for
 791          * this purpose, but con_accepts_window() returns false for workspaces. */
 792         while (parent->type != CT_WORKSPACE && !con_accepts_window(parent))
 793             parent = parent->parent;
 794     }
 795     DLOG("Appending to parent=%p instead of focused=%p\n", parent, focused);
 796     char *errormsg = NULL;
 797     tree_append_json(parent, path, &errormsg);
 798     if (errormsg != NULL) {
 799         yerror(errormsg);
 800         free(errormsg);
 801         /* Note that we continue executing since tree_append_json() has
 802          * side-effects — user-provided layouts can be partly valid, partly
 803          * invalid, leading to half of the placeholder containers being
 804          * created. */
 805     } else {
 806         ysuccess(true);
 807     }
 808
 809     // XXX: This is a bit of a kludge. Theoretically, render_con(parent,
 810     // false); should be enough, but when sending 'workspace 4; append_layout
 811     // /tmp/foo.json', the needs_tree_render == true of the workspace command
 812     // is not executed yet and will be batched with append_layout’s
 813     // needs_tree_render after the parser finished. We should check if that is
 814     // necessary at all.
 815     render_con(croot, false);
 816
 817     restore_open_placeholder_windows(parent);
 818
 819     if (content == JSON_CONTENT_WORKSPACE)
 820         ipc_send_workspace_event("restored", parent, NULL);
 821
 822     free(path);
 823     cmd_output->needs_tree_render = true;
 824 }
 825
 826 /*
 827  * Implementation of 'workspace next|prev|next_on_output|prev_on_output'.
 828  *
 829  */
 830 void cmd_workspace(I3_CMD, const char *which) {
 831     Con *ws;
 832
 833     DLOG("which=%s\n", which);
 834
 835     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 836         LOG("Cannot switch workspace while in global fullscreen\n");
 837         ysuccess(false);
 838         return;
 839     }
 840
 841     if (strcmp(which, "next") == 0)
 842         ws = workspace_next();
 843     else if (strcmp(which, "prev") == 0)
 844         ws = workspace_prev();
 845     else if (strcmp(which, "next_on_output") == 0)
 846         ws = workspace_next_on_output();
 847     else if (strcmp(which, "prev_on_output") == 0)
 848         ws = workspace_prev_on_output();
 849     else {
 850         ELOG("BUG: called with which=%s\n", which);
 851         ysuccess(false);
 852         return;
 853     }
 854
 855     workspace_show(ws);
 856
 857     cmd_output->needs_tree_render = true;
 858     // XXX: default reply for now, make this a better reply
 859     ysuccess(true);
 860 }
 861
 862 /*
 863  * Implementation of 'workspace [--no-auto-back-and-forth] number <name>'
 864  *
 865  */
 866 void cmd_workspace_number(I3_CMD, const char *which, const char *_no_auto_back_and_forth) {
 867     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 868     Con *output, *workspace = NULL;
 869
 870     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 871         LOG("Cannot switch workspace while in global fullscreen\n");
 872         ysuccess(false);
 873         return;
 874     }
 875
 876     long parsed_num = ws_name_to_number(which);
 877
 878     if (parsed_num == -1) {
 879         LOG("Could not parse initial part of \"%s\" as a number.\n", which);
 880         yerror("Could not parse number \"%s\"", which);
 881         return;
 882     }
 883
 884     TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
 885     GREP_FIRST(workspace, output_get_content(output),
 886                child->num == parsed_num);
 887
 888     if (!workspace) {
 889         LOG("There is no workspace with number %ld, creating a new one.\n", parsed_num);
 890         ysuccess(true);
 891         workspace_show_by_name(which);
 892         cmd_output->needs_tree_render = true;
 893         return;
 894     }
 895     if (!no_auto_back_and_forth && maybe_back_and_forth(cmd_output, workspace->name))
 896         return;
 897     workspace_show(workspace);
 898
 899     cmd_output->needs_tree_render = true;
 900     // XXX: default reply for now, make this a better reply
 901     ysuccess(true);
 902 }
 903
 904 /*
 905  * Implementation of 'workspace back_and_forth'.
 906  *
 907  */
 908 void cmd_workspace_back_and_forth(I3_CMD) {
 909     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 910         LOG("Cannot switch workspace while in global fullscreen\n");
 911         ysuccess(false);
 912         return;
 913     }
 914
 915     workspace_back_and_forth();
 916
 917     cmd_output->needs_tree_render = true;
 918     // XXX: default reply for now, make this a better reply
 919     ysuccess(true);
 920 }
 921
 922 /*
 923  * Implementation of 'workspace [--no-auto-back-and-forth] <name>'
 924  *
 925  */
 926 void cmd_workspace_name(I3_CMD, const char *name, const char *_no_auto_back_and_forth) {
 927     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 928
 929     if (strncasecmp(name, "__", strlen("__")) == 0) {
 930         LOG("You cannot switch to the i3-internal workspaces (\"%s\").\n", name);
 931         ysuccess(false);
 932         return;
 933     }
 934
 935     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 936         LOG("Cannot switch workspace while in global fullscreen\n");
 937         ysuccess(false);
 938         return;
 939     }
 940
 941     DLOG("should switch to workspace %s\n", name);
 942     if (!no_auto_back_and_forth && maybe_back_and_forth(cmd_output, name))
 943         return;
 944     workspace_show_by_name(name);
 945
 946     cmd_output->needs_tree_render = true;
 947     // XXX: default reply for now, make this a better reply
 948     ysuccess(true);
 949 }
 950
 951 /*
 952  * Implementation of 'mark [--add|--replace] [--toggle] <mark>'
 953  *
 954  */
 955 void cmd_mark(I3_CMD, const char *mark, const char *mode, const char *toggle) {
 956     HANDLE_EMPTY_MATCH;
 957
 958     owindow *current = TAILQ_FIRST(&owindows);
 959     if (current == NULL) {
 960         ysuccess(false);
 961         return;
 962     }
 963
 964     /* Marks must be unique, i.e., no two windows must have the same mark. */
 965     if (current != TAILQ_LAST(&owindows, owindows_head)) {
 966         yerror("A mark must not be put onto more than one window");
 967         return;
 968     }
 969
 970     DLOG("matching: %p / %s\n", current->con, current->con->name);
 971
 972     mark_mode_t mark_mode = (mode == NULL || strcmp(mode, "--replace") == 0) ? MM_REPLACE : MM_ADD;
 973     if (toggle != NULL) {
 974         con_mark_toggle(current->con, mark, mark_mode);
 975     } else {
 976         con_mark(current->con, mark, mark_mode);
 977     }
 978
 979     cmd_output->needs_tree_render = true;
 980     // XXX: default reply for now, make this a better reply
 981     ysuccess(true);
 982 }
 983
 984 /*
 985  * Implementation of 'unmark [mark]'
 986  *
 987  */
 988 void cmd_unmark(I3_CMD, const char *mark) {
 989     if (match_is_empty(current_match)) {
 990         con_unmark(NULL, mark);
 991     } else {
 992         owindow *current;
 993         TAILQ_FOREACH(current, &owindows, owindows) {
 994             con_unmark(current->con, mark);
 995         }
 996     }
 997
 998     cmd_output->needs_tree_render = true;
 999     // XXX: default reply for now, make this a better reply
1000     ysuccess(true);
1001 }
1002
1003 /*
1004  * Implementation of 'mode <string>'.
1005  *
1006  */
1007 void cmd_mode(I3_CMD, const char *mode) {
1008     DLOG("mode=%s\n", mode);
1009     switch_mode(mode);
1010
1011     // XXX: default reply for now, make this a better reply
1012     ysuccess(true);
1013 }
1014
1015 /*
1016  * Implementation of 'move [window|container] [to] output <str>'.
1017  *
1018  */
1019 void cmd_move_con_to_output(I3_CMD, const char *name) {
1020     DLOG("Should move window to output \"%s\".\n", name);
1021     HANDLE_EMPTY_MATCH;
1022
1023     owindow *current;
1024     bool had_error = false;
1025     TAILQ_FOREACH(current, &owindows, owindows) {
1026         DLOG("matching: %p / %s\n", current->con, current->con->name);
1027
1028         Output *current_output = get_output_for_con(current->con);
1029         assert(current_output != NULL);
1030
1031         Output *output = get_output_from_string(current_output, name);
1032         if (output == NULL) {
1033             ELOG("Could not find output \"%s\", skipping.\n", name);
1034             had_error = true;
1035             continue;
1036         }
1037
1038         Con *ws = NULL;
1039         GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1040         if (ws == NULL) {
1041             ELOG("Could not find a visible workspace on output %p.\n", output);
1042             had_error = true;
1043             continue;
1044         }
1045
1046         con_move_to_workspace(current->con, ws, true, false, false);
1047     }
1048
1049     cmd_output->needs_tree_render = true;
1050     ysuccess(!had_error);
1051 }
1052
1053 /*
1054  * Implementation of 'move [container|window] [to] mark <str>'.
1055  *
1056  */
1057 void cmd_move_con_to_mark(I3_CMD, const char *mark) {
1058     DLOG("moving window to mark \"%s\"\n", mark);
1059
1060     HANDLE_EMPTY_MATCH;
1061
1062     bool result = true;
1063     owindow *current;
1064     TAILQ_FOREACH(current, &owindows, owindows) {
1065         DLOG("moving matched window %p / %s to mark \"%s\"\n", current->con, current->con->name, mark);
1066         result &= con_move_to_mark(current->con, mark);
1067     }
1068
1069     cmd_output->needs_tree_render = true;
1070     ysuccess(result);
1071 }
1072
1073 /*
1074  * Implementation of 'floating enable|disable|toggle'
1075  *
1076  */
1077 void cmd_floating(I3_CMD, const char *floating_mode) {
1078     owindow *current;
1079
1080     DLOG("floating_mode=%s\n", floating_mode);
1081
1082     HANDLE_EMPTY_MATCH;
1083
1084     TAILQ_FOREACH(current, &owindows, owindows) {
1085         DLOG("matching: %p / %s\n", current->con, current->con->name);
1086         if (strcmp(floating_mode, "toggle") == 0) {
1087             DLOG("should toggle mode\n");
1088             toggle_floating_mode(current->con, false);
1089         } else {
1090             DLOG("should switch mode to %s\n", floating_mode);
1091             if (strcmp(floating_mode, "enable") == 0) {
1092                 floating_enable(current->con, false);
1093             } else {
1094                 floating_disable(current->con, false);
1095             }
1096         }
1097     }
1098
1099     cmd_output->needs_tree_render = true;
1100     // XXX: default reply for now, make this a better reply
1101     ysuccess(true);
1102 }
1103
1104 /*
1105  * Implementation of 'move workspace to [output] <str>'.
1106  *
1107  */
1108 void cmd_move_workspace_to_output(I3_CMD, const char *name) {
1109     DLOG("should move workspace to output %s\n", name);
1110
1111     HANDLE_EMPTY_MATCH;
1112
1113     owindow *current;
1114     TAILQ_FOREACH(current, &owindows, owindows) {
1115         Con *ws = con_get_workspace(current->con);
1116         bool success = workspace_move_to_output(ws, name);
1117         if (!success) {
1118             ELOG("Failed to move workspace to output.\n");
1119             ysuccess(false);
1120             return;
1121         }
1122     }
1123
1124     cmd_output->needs_tree_render = true;
1125     // XXX: default reply for now, make this a better reply
1126     ysuccess(true);
1127 }
1128
1129 /*
1130  * Implementation of 'split v|h|t|vertical|horizontal|toggle'.
1131  *
1132  */
1133 void cmd_split(I3_CMD, const char *direction) {
1134     HANDLE_EMPTY_MATCH;
1135
1136     owindow *current;
1137     LOG("splitting in direction %c\n", direction[0]);
1138     TAILQ_FOREACH(current, &owindows, owindows) {
1139         if (con_is_docked(current->con)) {
1140             ELOG("Cannot split a docked container, skipping.\n");
1141             continue;
1142         }
1143
1144         DLOG("matching: %p / %s\n", current->con, current->con->name);
1145         if (direction[0] == 't') {
1146             layout_t current_layout;
1147             if (current->con->type == CT_WORKSPACE) {
1148                 current_layout = current->con->layout;
1149             } else {
1150                 current_layout = current->con->parent->layout;
1151             }
1152             /* toggling split orientation */
1153             if (current_layout == L_SPLITH) {
1154                 tree_split(current->con, VERT);
1155             } else {
1156                 tree_split(current->con, HORIZ);
1157             }
1158         } else {
1159             tree_split(current->con, (direction[0] == 'v' ? VERT : HORIZ));
1160         }
1161     }
1162
1163     cmd_output->needs_tree_render = true;
1164     // XXX: default reply for now, make this a better reply
1165     ysuccess(true);
1166 }
1167
1168 /*
1169  * Implementation of 'kill [window|client]'.
1170  *
1171  */
1172 void cmd_kill(I3_CMD, const char *kill_mode_str) {
1173     if (kill_mode_str == NULL)
1174         kill_mode_str = "window";
1175
1176     DLOG("kill_mode=%s\n", kill_mode_str);
1177
1178     int kill_mode;
1179     if (strcmp(kill_mode_str, "window") == 0)
1180         kill_mode = KILL_WINDOW;
1181     else if (strcmp(kill_mode_str, "client") == 0)
1182         kill_mode = KILL_CLIENT;
1183     else {
1184         ELOG("BUG: called with kill_mode=%s\n", kill_mode_str);
1185         ysuccess(false);
1186         return;
1187     }
1188
1189     HANDLE_EMPTY_MATCH;
1190
1191     owindow *current;
1192     TAILQ_FOREACH(current, &owindows, owindows) {
1193         con_close(current->con, kill_mode);
1194     }
1195
1196     cmd_output->needs_tree_render = true;
1197     // XXX: default reply for now, make this a better reply
1198     ysuccess(true);
1199 }
1200
1201 /*
1202  * Implementation of 'exec [--no-startup-id] <command>'.
1203  *
1204  */
1205 void cmd_exec(I3_CMD, const char *nosn, const char *command) {
1206     bool no_startup_id = (nosn != NULL);
1207
1208     DLOG("should execute %s, no_startup_id = %d\n", command, no_startup_id);
1209     start_application(command, no_startup_id);
1210
1211     // XXX: default reply for now, make this a better reply
1212     ysuccess(true);
1213 }
1214
1215 /*
1216  * Implementation of 'focus left|right|up|down'.
1217  *
1218  */
1219 void cmd_focus_direction(I3_CMD, const char *direction) {
1220     DLOG("direction = *%s*\n", direction);
1221
1222     if (strcmp(direction, "left") == 0)
1223         tree_next('p', HORIZ);
1224     else if (strcmp(direction, "right") == 0)
1225         tree_next('n', HORIZ);
1226     else if (strcmp(direction, "up") == 0)
1227         tree_next('p', VERT);
1228     else if (strcmp(direction, "down") == 0)
1229         tree_next('n', VERT);
1230     else {
1231         ELOG("Invalid focus direction (%s)\n", direction);
1232         ysuccess(false);
1233         return;
1234     }
1235
1236     cmd_output->needs_tree_render = true;
1237     // XXX: default reply for now, make this a better reply
1238     ysuccess(true);
1239 }
1240
1241 /*
1242  * Implementation of 'focus tiling|floating|mode_toggle'.
1243  *
1244  */
1245 void cmd_focus_window_mode(I3_CMD, const char *window_mode) {
1246     DLOG("window_mode = %s\n", window_mode);
1247
1248     Con *ws = con_get_workspace(focused);
1249     if (ws != NULL) {
1250         if (strcmp(window_mode, "mode_toggle") == 0) {
1251             if (con_inside_floating(focused))
1252                 window_mode = "tiling";
1253             else
1254                 window_mode = "floating";
1255         }
1256         Con *current;
1257         TAILQ_FOREACH(current, &(ws->focus_head), focused) {
1258             if ((strcmp(window_mode, "floating") == 0 && current->type != CT_FLOATING_CON) ||
1259                 (strcmp(window_mode, "tiling") == 0 && current->type == CT_FLOATING_CON))
1260                 continue;
1261
1262             con_focus(con_descend_focused(current));
1263             break;
1264         }
1265     }
1266
1267     cmd_output->needs_tree_render = true;
1268     // XXX: default reply for now, make this a better reply
1269     ysuccess(true);
1270 }
1271
1272 /*
1273  * Implementation of 'focus parent|child'.
1274  *
1275  */
1276 void cmd_focus_level(I3_CMD, const char *level) {
1277     DLOG("level = %s\n", level);
1278     bool success = false;
1279
1280     /* Focusing the parent can only be allowed if the newly
1281      * focused container won't escape the fullscreen container. */
1282     if (strcmp(level, "parent") == 0) {
1283         if (focused && focused->parent) {
1284             if (con_fullscreen_permits_focusing(focused->parent))
1285                 success = level_up();
1286             else
1287                 ELOG("'focus parent': Currently in fullscreen, not going up\n");
1288         }
1289     }
1290
1291     /* Focusing a child should always be allowed. */
1292     else
1293         success = level_down();
1294
1295     cmd_output->needs_tree_render = success;
1296     // XXX: default reply for now, make this a better reply
1297     ysuccess(success);
1298 }
1299
1300 /*
1301  * Implementation of 'focus'.
1302  *
1303  */
1304 void cmd_focus(I3_CMD) {
1305     DLOG("current_match = %p\n", current_match);
1306
1307     if (match_is_empty(current_match)) {
1308         ELOG("You have to specify which window/container should be focused.\n");
1309         ELOG("Example: [class=\"urxvt\" title=\"irssi\"] focus\n");
1310
1311         yerror("You have to specify which window/container should be focused");
1312
1313         return;
1314     }
1315
1316     Con *__i3_scratch = workspace_get("__i3_scratch", NULL);
1317     int count = 0;
1318     owindow *current;
1319     TAILQ_FOREACH(current, &owindows, owindows) {
1320         Con *ws = con_get_workspace(current->con);
1321         /* If no workspace could be found, this was a dock window.
1322          * Just skip it, you cannot focus dock windows. */
1323         if (!ws)
1324             continue;
1325
1326         /* Check the fullscreen focus constraints. */
1327         if (!con_fullscreen_permits_focusing(current->con)) {
1328             LOG("Cannot change focus while in fullscreen mode (fullscreen rules).\n");
1329             ysuccess(false);
1330             return;
1331         }
1332
1333         /* In case this is a scratchpad window, call scratchpad_show(). */
1334         if (ws == __i3_scratch) {
1335             scratchpad_show(current->con);
1336             count++;
1337             /* While for the normal focus case we can change focus multiple
1338              * times and only a single window ends up focused, we could show
1339              * multiple scratchpad windows. So, rather break here. */
1340             break;
1341         }
1342
1343         /* If the container is not on the current workspace,
1344          * workspace_show() will switch to a different workspace and (if
1345          * enabled) trigger a mouse pointer warp to the currently focused
1346          * container (!) on the target workspace.
1347          *
1348          * Therefore, before calling workspace_show(), we make sure that
1349          * 'current' will be focused on the workspace. However, we cannot
1350          * just con_focus(current) because then the pointer will not be
1351          * warped at all (the code thinks we are already there).
1352          *
1353          * So we focus 'current' to make it the currently focused window of
1354          * the target workspace, then revert focus. */
1355         Con *currently_focused = focused;
1356         con_focus(current->con);
1357         con_focus(currently_focused);
1358
1359         /* Now switch to the workspace, then focus */
1360         workspace_show(ws);
1361         LOG("focusing %p / %s\n", current->con, current->con->name);
1362         con_focus(current->con);
1363         count++;
1364     }
1365
1366     if (count > 1)
1367         LOG("WARNING: Your criteria for the focus command matches %d containers, "
1368             "while only exactly one container can be focused at a time.\n",
1369             count);
1370
1371     cmd_output->needs_tree_render = true;
1372     ysuccess(count > 0);
1373 }
1374
1375 /*
1376  * Implementation of 'fullscreen enable|toggle [global]' and
1377  *                   'fullscreen disable'
1378  *
1379  */
1380 void cmd_fullscreen(I3_CMD, const char *action, const char *fullscreen_mode) {
1381     fullscreen_mode_t mode = strcmp(fullscreen_mode, "global") == 0 ? CF_GLOBAL : CF_OUTPUT;
1382     DLOG("%s fullscreen, mode = %s\n", action, fullscreen_mode);
1383     owindow *current;
1384
1385     HANDLE_EMPTY_MATCH;
1386
1387     TAILQ_FOREACH(current, &owindows, owindows) {
1388         DLOG("matching: %p / %s\n", current->con, current->con->name);
1389         if (strcmp(action, "toggle") == 0) {
1390             con_toggle_fullscreen(current->con, mode);
1391         } else if (strcmp(action, "enable") == 0) {
1392             con_enable_fullscreen(current->con, mode);
1393         } else if (strcmp(action, "disable") == 0) {
1394             con_disable_fullscreen(current->con);
1395         }
1396     }
1397
1398     cmd_output->needs_tree_render = true;
1399     // XXX: default reply for now, make this a better reply
1400     ysuccess(true);
1401 }
1402
1403 /*
1404  * Implementation of 'sticky enable|disable|toggle'.
1405  *
1406  */
1407 void cmd_sticky(I3_CMD, const char *action) {
1408     DLOG("%s sticky on window\n", action);
1409     HANDLE_EMPTY_MATCH;
1410
1411     owindow *current;
1412     TAILQ_FOREACH(current, &owindows, owindows) {
1413         if (current->con->window == NULL) {
1414             ELOG("only containers holding a window can be made sticky, skipping con = %p\n", current->con);
1415             continue;
1416         }
1417         DLOG("setting sticky for container = %p / %s\n", current->con, current->con->name);
1418
1419         bool sticky = false;
1420         if (strcmp(action, "enable") == 0)
1421             sticky = true;
1422         else if (strcmp(action, "disable") == 0)
1423             sticky = false;
1424         else if (strcmp(action, "toggle") == 0)
1425             sticky = !current->con->sticky;
1426
1427         current->con->sticky = sticky;
1428         ewmh_update_sticky(current->con->window->id, sticky);
1429     }
1430
1431     /* A window we made sticky might not be on a visible workspace right now, so we need to make
1432      * sure it gets pushed to the front now. */
1433     output_push_sticky_windows(focused);
1434
1435     ewmh_update_wm_desktop();
1436
1437     cmd_output->needs_tree_render = true;
1438     ysuccess(true);
1439 }
1440
1441 /*
1442  * Implementation of 'move <direction> [<pixels> [px]]'.
1443  *
1444  */
1445 void cmd_move_direction(I3_CMD, const char *direction, long move_px) {
1446     owindow *current;
1447     HANDLE_EMPTY_MATCH;
1448
1449     Con *initially_focused = focused;
1450
1451     TAILQ_FOREACH(current, &owindows, owindows) {
1452         DLOG("moving in direction %s, px %ld\n", direction, move_px);
1453         if (con_is_floating(current->con)) {
1454             DLOG("floating move with %ld pixels\n", move_px);
1455             Rect newrect = current->con->parent->rect;
1456             if (strcmp(direction, "left") == 0) {
1457                 newrect.x -= move_px;
1458             } else if (strcmp(direction, "right") == 0) {
1459                 newrect.x += move_px;
1460             } else if (strcmp(direction, "up") == 0) {
1461                 newrect.y -= move_px;
1462             } else if (strcmp(direction, "down") == 0) {
1463                 newrect.y += move_px;
1464             }
1465             floating_reposition(current->con->parent, newrect);
1466         } else {
1467             tree_move(current->con, (strcmp(direction, "right") == 0 ? D_RIGHT : (strcmp(direction, "left") == 0 ? D_LEFT : (strcmp(direction, "up") == 0 ? D_UP : D_DOWN))));
1468             cmd_output->needs_tree_render = true;
1469         }
1470     }
1471
1472     /* the move command should not disturb focus */
1473     if (focused != initially_focused)
1474         con_focus(initially_focused);
1475
1476     // XXX: default reply for now, make this a better reply
1477     ysuccess(true);
1478 }
1479
1480 /*
1481  * Implementation of 'layout default|stacked|stacking|tabbed|splitv|splith'.
1482  *
1483  */
1484 void cmd_layout(I3_CMD, const char *layout_str) {
1485     HANDLE_EMPTY_MATCH;
1486
1487     if (strcmp(layout_str, "stacking") == 0)
1488         layout_str = "stacked";
1489     layout_t layout;
1490     /* default is a special case which will be handled in con_set_layout(). */
1491     if (strcmp(layout_str, "default") == 0)
1492         layout = L_DEFAULT;
1493     else if (strcmp(layout_str, "stacked") == 0)
1494         layout = L_STACKED;
1495     else if (strcmp(layout_str, "tabbed") == 0)
1496         layout = L_TABBED;
1497     else if (strcmp(layout_str, "splitv") == 0)
1498         layout = L_SPLITV;
1499     else if (strcmp(layout_str, "splith") == 0)
1500         layout = L_SPLITH;
1501     else {
1502         ELOG("Unknown layout \"%s\", this is a mismatch between code and parser spec.\n", layout_str);
1503         return;
1504     }
1505
1506     DLOG("changing layout to %s (%d)\n", layout_str, layout);
1507
1508     owindow *current;
1509     TAILQ_FOREACH(current, &owindows, owindows) {
1510         if (con_is_docked(current->con)) {
1511             ELOG("cannot change layout of a docked container, skipping it.\n");
1512             continue;
1513         }
1514
1515         DLOG("matching: %p / %s\n", current->con, current->con->name);
1516         con_set_layout(current->con, layout);
1517     }
1518
1519     cmd_output->needs_tree_render = true;
1520     // XXX: default reply for now, make this a better reply
1521     ysuccess(true);
1522 }
1523
1524 /*
1525  * Implementation of 'layout toggle [all|split]'.
1526  *
1527  */
1528 void cmd_layout_toggle(I3_CMD, const char *toggle_mode) {
1529     owindow *current;
1530
1531     if (toggle_mode == NULL)
1532         toggle_mode = "default";
1533
1534     DLOG("toggling layout (mode = %s)\n", toggle_mode);
1535
1536     /* check if the match is empty, not if the result is empty */
1537     if (match_is_empty(current_match))
1538         con_toggle_layout(focused, toggle_mode);
1539     else {
1540         TAILQ_FOREACH(current, &owindows, owindows) {
1541             DLOG("matching: %p / %s\n", current->con, current->con->name);
1542             con_toggle_layout(current->con, toggle_mode);
1543         }
1544     }
1545
1546     cmd_output->needs_tree_render = true;
1547     // XXX: default reply for now, make this a better reply
1548     ysuccess(true);
1549 }
1550
1551 /*
1552  * Implementation of 'exit'.
1553  *
1554  */
1555 void cmd_exit(I3_CMD) {
1556     LOG("Exiting due to user command.\n");
1557 #ifdef I3_ASAN_ENABLED
1558     __lsan_do_leak_check();
1559 #endif
1560     ipc_shutdown();
1561     unlink(config.ipc_socket_path);
1562     xcb_disconnect(conn);
1563     exit(0);
1564
1565     /* unreached */
1566 }
1567
1568 /*
1569  * Implementation of 'reload'.
1570  *
1571  */
1572 void cmd_reload(I3_CMD) {
1573     LOG("reloading\n");
1574     kill_nagbar(&config_error_nagbar_pid, false);
1575     kill_nagbar(&command_error_nagbar_pid, false);
1576     load_configuration(conn, NULL, true);
1577     x_set_i3_atoms();
1578     /* Send an IPC event just in case the ws names have changed */
1579     ipc_send_workspace_event("reload", NULL, NULL);
1580     /* Send an update event for the barconfig just in case it has changed */
1581     update_barconfig();
1582
1583     // XXX: default reply for now, make this a better reply
1584     ysuccess(true);
1585 }
1586
1587 /*
1588  * Implementation of 'restart'.
1589  *
1590  */
1591 void cmd_restart(I3_CMD) {
1592     LOG("restarting i3\n");
1593     ipc_shutdown();
1594     unlink(config.ipc_socket_path);
1595     /* We need to call this manually since atexit handlers don’t get called
1596      * when exec()ing */
1597     purge_zerobyte_logfile();
1598     i3_restart(false);
1599
1600     // XXX: default reply for now, make this a better reply
1601     ysuccess(true);
1602 }
1603
1604 /*
1605  * Implementation of 'open'.
1606  *
1607  */
1608 void cmd_open(I3_CMD) {
1609     LOG("opening new container\n");
1610     Con *con = tree_open_con(NULL, NULL);
1611     con->layout = L_SPLITH;
1612     con_focus(con);
1613
1614     y(map_open);
1615     ystr("success");
1616     y(bool, true);
1617     ystr("id");
1618     y(integer, (uintptr_t)con);
1619     y(map_close);
1620
1621     cmd_output->needs_tree_render = true;
1622 }
1623
1624 /*
1625  * Implementation of 'focus output <output>'.
1626  *
1627  */
1628 void cmd_focus_output(I3_CMD, const char *name) {
1629     owindow *current;
1630
1631     DLOG("name = %s\n", name);
1632
1633     HANDLE_EMPTY_MATCH;
1634
1635     /* get the output */
1636     Output *current_output = NULL;
1637     Output *output;
1638
1639     TAILQ_FOREACH(current, &owindows, owindows)
1640     current_output = get_output_for_con(current->con);
1641     assert(current_output != NULL);
1642
1643     output = get_output_from_string(current_output, name);
1644
1645     if (!output) {
1646         LOG("No such output found.\n");
1647         ysuccess(false);
1648         return;
1649     }
1650
1651     /* get visible workspace on output */
1652     Con *ws = NULL;
1653     GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1654     if (!ws) {
1655         ysuccess(false);
1656         return;
1657     }
1658
1659     workspace_show(ws);
1660
1661     cmd_output->needs_tree_render = true;
1662     // XXX: default reply for now, make this a better reply
1663     ysuccess(true);
1664 }
1665
1666 /*
1667  * Implementation of 'move [window|container] [to] [absolute] position <px> [px] <px> [px]
1668  *
1669  */
1670 void cmd_move_window_to_position(I3_CMD, const char *method, long x, long y) {
1671     bool has_error = false;
1672
1673     owindow *current;
1674     HANDLE_EMPTY_MATCH;
1675
1676     TAILQ_FOREACH(current, &owindows, owindows) {
1677         if (!con_is_floating(current->con)) {
1678             ELOG("Cannot change position. The window/container is not floating\n");
1679
1680             if (!has_error) {
1681                 yerror("Cannot change position of a window/container because it is not floating.");
1682                 has_error = true;
1683             }
1684
1685             continue;
1686         }
1687
1688         if (strcmp(method, "absolute") == 0) {
1689             current->con->parent->rect.x = x;
1690             current->con->parent->rect.y = y;
1691
1692             DLOG("moving to absolute position %ld %ld\n", x, y);
1693             floating_maybe_reassign_ws(current->con->parent);
1694             cmd_output->needs_tree_render = true;
1695         }
1696
1697         if (strcmp(method, "position") == 0) {
1698             Rect newrect = current->con->parent->rect;
1699
1700             DLOG("moving to position %ld %ld\n", x, y);
1701             newrect.x = x;
1702             newrect.y = y;
1703
1704             floating_reposition(current->con->parent, newrect);
1705         }
1706     }
1707
1708     // XXX: default reply for now, make this a better reply
1709     if (!has_error)
1710         ysuccess(true);
1711 }
1712
1713 /*
1714  * Implementation of 'move [window|container] [to] [absolute] position center
1715  *
1716  */
1717 void cmd_move_window_to_center(I3_CMD, const char *method) {
1718     bool has_error = false;
1719     HANDLE_EMPTY_MATCH;
1720
1721     owindow *current;
1722     TAILQ_FOREACH(current, &owindows, owindows) {
1723         Con *floating_con = con_inside_floating(current->con);
1724         if (floating_con == NULL) {
1725             ELOG("con %p / %s is not floating, cannot move it to the center.\n",
1726                  current->con, current->con->name);
1727
1728             if (!has_error) {
1729                 yerror("Cannot change position of a window/container because it is not floating.");
1730                 has_error = true;
1731             }
1732
1733             continue;
1734         }
1735
1736         if (strcmp(method, "absolute") == 0) {
1737             DLOG("moving to absolute center\n");
1738             floating_center(floating_con, croot->rect);
1739
1740             floating_maybe_reassign_ws(floating_con);
1741             cmd_output->needs_tree_render = true;
1742         }
1743
1744         if (strcmp(method, "position") == 0) {
1745             DLOG("moving to center\n");
1746             floating_center(floating_con, con_get_workspace(floating_con)->rect);
1747
1748             cmd_output->needs_tree_render = true;
1749         }
1750     }
1751
1752     // XXX: default reply for now, make this a better reply
1753     if (!has_error)
1754         ysuccess(true);
1755 }
1756
1757 /*
1758  * Implementation of 'move [window|container] [to] position mouse'
1759  *
1760  */
1761 void cmd_move_window_to_mouse(I3_CMD) {
1762     HANDLE_EMPTY_MATCH;
1763
1764     owindow *current;
1765     TAILQ_FOREACH(current, &owindows, owindows) {
1766         Con *floating_con = con_inside_floating(current->con);
1767         if (floating_con == NULL) {
1768             DLOG("con %p / %s is not floating, cannot move it to the mouse position.\n",
1769                  current->con, current->con->name);
1770             continue;
1771         }
1772
1773         DLOG("moving floating container %p / %s to cursor position\n", floating_con, floating_con->name);
1774         floating_move_to_pointer(floating_con);
1775     }
1776
1777     cmd_output->needs_tree_render = true;
1778     ysuccess(true);
1779 }
1780
1781 /*
1782  * Implementation of 'move scratchpad'.
1783  *
1784  */
1785 void cmd_move_scratchpad(I3_CMD) {
1786     DLOG("should move window to scratchpad\n");
1787     owindow *current;
1788
1789     HANDLE_EMPTY_MATCH;
1790
1791     TAILQ_FOREACH(current, &owindows, owindows) {
1792         DLOG("matching: %p / %s\n", current->con, current->con->name);
1793         scratchpad_move(current->con);
1794     }
1795
1796     cmd_output->needs_tree_render = true;
1797     // XXX: default reply for now, make this a better reply
1798     ysuccess(true);
1799 }
1800
1801 /*
1802  * Implementation of 'scratchpad show'.
1803  *
1804  */
1805 void cmd_scratchpad_show(I3_CMD) {
1806     DLOG("should show scratchpad window\n");
1807     owindow *current;
1808
1809     if (match_is_empty(current_match)) {
1810         scratchpad_show(NULL);
1811     } else {
1812         TAILQ_FOREACH(current, &owindows, owindows) {
1813             DLOG("matching: %p / %s\n", current->con, current->con->name);
1814             scratchpad_show(current->con);
1815         }
1816     }
1817
1818     cmd_output->needs_tree_render = true;
1819     // XXX: default reply for now, make this a better reply
1820     ysuccess(true);
1821 }
1822
1823 /*
1824  * Implementation of 'title_format <format>'
1825  *
1826  */
1827 void cmd_title_format(I3_CMD, const char *format) {
1828     DLOG("setting title_format to \"%s\"\n", format);
1829     HANDLE_EMPTY_MATCH;
1830
1831     owindow *current;
1832     TAILQ_FOREACH(current, &owindows, owindows) {
1833         DLOG("setting title_format for %p / %s\n", current->con, current->con->name);
1834         FREE(current->con->title_format);
1835
1836         /* If we only display the title without anything else, we can skip the parsing step,
1837          * so we remove the title format altogether. */
1838         if (strcasecmp(format, "%title") != 0) {
1839             current->con->title_format = sstrdup(format);
1840
1841             if (current->con->window != NULL) {
1842                 i3String *formatted_title = con_parse_title_format(current->con);
1843                 ewmh_update_visible_name(current->con->window->id, i3string_as_utf8(formatted_title));
1844                 I3STRING_FREE(formatted_title);
1845             }
1846         } else {
1847             if (current->con->window != NULL) {
1848                 /* We can remove _NET_WM_VISIBLE_NAME since we don't display a custom title. */
1849                 ewmh_update_visible_name(current->con->window->id, NULL);
1850             }
1851         }
1852
1853         if (current->con->window != NULL) {
1854             /* Make sure the window title is redrawn immediately. */
1855             current->con->window->name_x_changed = true;
1856         } else {
1857             /* For windowless containers we also need to force the redrawing. */
1858             FREE(current->con->deco_render_params);
1859         }
1860     }
1861
1862     cmd_output->needs_tree_render = true;
1863     ysuccess(true);
1864 }
1865
1866 /*
1867  * Implementation of 'rename workspace [<name>] to <name>'
1868  *
1869  */
1870 void cmd_rename_workspace(I3_CMD, const char *old_name, const char *new_name) {
1871     if (strncasecmp(new_name, "__", strlen("__")) == 0) {
1872         LOG("Cannot rename workspace to \"%s\": names starting with __ are i3-internal.\n", new_name);
1873         ysuccess(false);
1874         return;
1875     }
1876     if (old_name) {
1877         LOG("Renaming workspace \"%s\" to \"%s\"\n", old_name, new_name);
1878     } else {
1879         LOG("Renaming current workspace to \"%s\"\n", new_name);
1880     }
1881
1882     Con *output, *workspace = NULL;
1883     if (old_name) {
1884         TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
1885         GREP_FIRST(workspace, output_get_content(output),
1886                    !strcasecmp(child->name, old_name));
1887     } else {
1888         workspace = con_get_workspace(focused);
1889         old_name = workspace->name;
1890     }
1891
1892     if (!workspace) {
1893         yerror("Old workspace \"%s\" not found", old_name);
1894         return;
1895     }
1896
1897     Con *check_dest = NULL;
1898     TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
1899     GREP_FIRST(check_dest, output_get_content(output),
1900                !strcasecmp(child->name, new_name));
1901
1902     /* If check_dest == workspace, the user might be changing the case of the
1903      * workspace, or it might just be a no-op. */
1904     if (check_dest != NULL && check_dest != workspace) {
1905         yerror("New workspace \"%s\" already exists", new_name);
1906         return;
1907     }
1908
1909     /* Change the name and try to parse it as a number. */
1910     /* old_name might refer to workspace->name, so copy it before free()ing */
1911     char *old_name_copy = sstrdup(old_name);
1912     FREE(workspace->name);
1913     workspace->name = sstrdup(new_name);
1914
1915     workspace->num = ws_name_to_number(new_name);
1916     LOG("num = %d\n", workspace->num);
1917
1918     /* By re-attaching, the sort order will be correct afterwards. */
1919     Con *previously_focused = focused;
1920     Con *parent = workspace->parent;
1921     con_detach(workspace);
1922     con_attach(workspace, parent, false);
1923
1924     /* Move the workspace to the correct output if it has an assignment */
1925     struct Workspace_Assignment *assignment = NULL;
1926     TAILQ_FOREACH(assignment, &ws_assignments, ws_assignments) {
1927         if (assignment->output == NULL)
1928             continue;
1929         if (strcmp(assignment->name, workspace->name) != 0 && (!name_is_digits(assignment->name) || ws_name_to_number(assignment->name) != workspace->num)) {
1930             continue;
1931         }
1932
1933         workspace_move_to_output(workspace, assignment->output);
1934
1935         if (previously_focused)
1936             workspace_show(con_get_workspace(previously_focused));
1937
1938         break;
1939     }
1940
1941     /* Restore the previous focus since con_attach messes with the focus. */
1942     con_focus(previously_focused);
1943
1944     cmd_output->needs_tree_render = true;
1945     ysuccess(true);
1946
1947     ipc_send_workspace_event("rename", workspace, NULL);
1948     ewmh_update_desktop_names();
1949     ewmh_update_desktop_viewport();
1950     ewmh_update_current_desktop();
1951
1952     startup_sequence_rename_workspace(old_name_copy, new_name);
1953     free(old_name_copy);
1954 }
1955
1956 /*
1957  * Implementation of 'bar mode dock|hide|invisible|toggle [<bar_id>]'
1958  *
1959  */
1960 bool cmd_bar_mode(const char *bar_mode, const char *bar_id) {
1961     int mode = M_DOCK;
1962     bool toggle = false;
1963     if (strcmp(bar_mode, "dock") == 0)
1964         mode = M_DOCK;
1965     else if (strcmp(bar_mode, "hide") == 0)
1966         mode = M_HIDE;
1967     else if (strcmp(bar_mode, "invisible") == 0)
1968         mode = M_INVISIBLE;
1969     else if (strcmp(bar_mode, "toggle") == 0)
1970         toggle = true;
1971     else {
1972         ELOG("Unknown bar mode \"%s\", this is a mismatch between code and parser spec.\n", bar_mode);
1973         return false;
1974     }
1975
1976     bool changed_sth = false;
1977     Barconfig *current = NULL;
1978     TAILQ_FOREACH(current, &barconfigs, configs) {
1979         if (bar_id && strcmp(current->id, bar_id) != 0)
1980             continue;
1981
1982         if (toggle)
1983             mode = (current->mode + 1) % 2;
1984
1985         DLOG("Changing bar mode of bar_id '%s' to '%s (%d)'\n", current->id, bar_mode, mode);
1986         current->mode = mode;
1987         changed_sth = true;
1988
1989         if (bar_id)
1990             break;
1991     }
1992
1993     if (bar_id && !changed_sth) {
1994         DLOG("Changing bar mode of bar_id %s failed, bar_id not found.\n", bar_id);
1995         return false;
1996     }
1997
1998     return true;
1999 }
2000
2001 /*
2002  * Implementation of 'bar hidden_state hide|show|toggle [<bar_id>]'
2003  *
2004  */
2005 bool cmd_bar_hidden_state(const char *bar_hidden_state, const char *bar_id) {
2006     int hidden_state = S_SHOW;
2007     bool toggle = false;
2008     if (strcmp(bar_hidden_state, "hide") == 0)
2009         hidden_state = S_HIDE;
2010     else if (strcmp(bar_hidden_state, "show") == 0)
2011         hidden_state = S_SHOW;
2012     else if (strcmp(bar_hidden_state, "toggle") == 0)
2013         toggle = true;
2014     else {
2015         ELOG("Unknown bar state \"%s\", this is a mismatch between code and parser spec.\n", bar_hidden_state);
2016         return false;
2017     }
2018
2019     bool changed_sth = false;
2020     Barconfig *current = NULL;
2021     TAILQ_FOREACH(current, &barconfigs, configs) {
2022         if (bar_id && strcmp(current->id, bar_id) != 0)
2023             continue;
2024
2025         if (toggle)
2026             hidden_state = (current->hidden_state + 1) % 2;
2027
2028         DLOG("Changing bar hidden_state of bar_id '%s' to '%s (%d)'\n", current->id, bar_hidden_state, hidden_state);
2029         current->hidden_state = hidden_state;
2030         changed_sth = true;
2031
2032         if (bar_id)
2033             break;
2034     }
2035
2036     if (bar_id && !changed_sth) {
2037         DLOG("Changing bar hidden_state of bar_id %s failed, bar_id not found.\n", bar_id);
2038         return false;
2039     }
2040
2041     return true;
2042 }
2043
2044 /*
2045  * Implementation of 'bar (hidden_state hide|show|toggle)|(mode dock|hide|invisible|toggle) [<bar_id>]'
2046  *
2047  */
2048 void cmd_bar(I3_CMD, const char *bar_type, const char *bar_value, const char *bar_id) {
2049     bool ret;
2050     if (strcmp(bar_type, "mode") == 0)
2051         ret = cmd_bar_mode(bar_value, bar_id);
2052     else if (strcmp(bar_type, "hidden_state") == 0)
2053         ret = cmd_bar_hidden_state(bar_value, bar_id);
2054     else {
2055         ELOG("Unknown bar option type \"%s\", this is a mismatch between code and parser spec.\n", bar_type);
2056         ret = false;
2057     }
2058
2059     ysuccess(ret);
2060     if (!ret)
2061         return;
2062
2063     update_barconfig();
2064 }
2065
2066 /*
2067  * Implementation of 'shmlog <size>|toggle|on|off'
2068  *
2069  */
2070 void cmd_shmlog(I3_CMD, const char *argument) {
2071     if (!strcmp(argument, "toggle"))
2072         /* Toggle shm log, if size is not 0. If it is 0, set it to default. */
2073         shmlog_size = shmlog_size ? -shmlog_size : default_shmlog_size;
2074     else if (!strcmp(argument, "on"))
2075         shmlog_size = default_shmlog_size;
2076     else if (!strcmp(argument, "off"))
2077         shmlog_size = 0;
2078     else {
2079         /* If shm logging now, restart logging with the new size. */
2080         if (shmlog_size > 0) {
2081             shmlog_size = 0;
2082             LOG("Restarting shm logging...\n");
2083             init_logging();
2084         }
2085         shmlog_size = atoi(argument);
2086         /* Make a weakly attempt at ensuring the argument is valid. */
2087         if (shmlog_size <= 0)
2088             shmlog_size = default_shmlog_size;
2089     }
2090     LOG("%s shm logging\n", shmlog_size > 0 ? "Enabling" : "Disabling");
2091     init_logging();
2092     update_shmlog_atom();
2093     // XXX: default reply for now, make this a better reply
2094     ysuccess(true);
2095 }
2096
2097 /*
2098  * Implementation of 'debuglog toggle|on|off'
2099  *
2100  */
2101 void cmd_debuglog(I3_CMD, const char *argument) {
2102     bool logging = get_debug_logging();
2103     if (!strcmp(argument, "toggle")) {
2104         LOG("%s debug logging\n", logging ? "Disabling" : "Enabling");
2105         set_debug_logging(!logging);
2106     } else if (!strcmp(argument, "on") && !logging) {
2107         LOG("Enabling debug logging\n");
2108         set_debug_logging(true);
2109     } else if (!strcmp(argument, "off") && logging) {
2110         LOG("Disabling debug logging\n");
2111         set_debug_logging(false);
2112     }
2113     // XXX: default reply for now, make this a better reply
2114     ysuccess(true);
2115 }