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  * Checks whether we switched to a new workspace and returns false in that case,
  83  * signaling that further workspace switching should be done by the calling function
  84  * If not, calls workspace_back_and_forth() if workspace_auto_back_and_forth is set
  85  * and return true, signaling that no further workspace switching should occur in the calling function.
  86  *
  87  */
  88 static bool maybe_back_and_forth(struct CommandResultIR *cmd_output, const char *name) {
  89     Con *ws = con_get_workspace(focused);
  90
  91     /* If we switched to a different workspace, do nothing */
  92     if (strcmp(ws->name, name) != 0)
  93         return false;
  94
  95     DLOG("This workspace is already focused.\n");
  96     if (config.workspace_auto_back_and_forth) {
  97         workspace_back_and_forth();
  98         cmd_output->needs_tree_render = true;
  99     }
 100     return true;
 101 }
 102
 103 /*
 104  * Return the passed workspace unless it is the current one and auto back and
 105  * forth is enabled, in which case the back_and_forth workspace is returned.
 106  */
 107 static Con *maybe_auto_back_and_forth_workspace(Con *workspace) {
 108     Con *current, *baf;
 109
 110     if (!config.workspace_auto_back_and_forth)
 111         return workspace;
 112
 113     current = con_get_workspace(focused);
 114
 115     if (current == workspace) {
 116         baf = workspace_back_and_forth_get();
 117         if (baf != NULL) {
 118             DLOG("Substituting workspace with back_and_forth, as it is focused.\n");
 119             return baf;
 120         }
 121     }
 122
 123     return workspace;
 124 }
 125
 126 /*******************************************************************************
 127  * Criteria functions.
 128  ******************************************************************************/
 129
 130 /*
 131  * Helper data structure for an operation window (window on which the operation
 132  * will be performed). Used to build the TAILQ owindows.
 133  *
 134  */
 135 typedef struct owindow {
 136     Con *con;
 137
 138     TAILQ_ENTRY(owindow)
 139     owindows;
 140 } owindow;
 141
 142 typedef TAILQ_HEAD(owindows_head, owindow) owindows_head;
 143
 144 static owindows_head owindows;
 145
 146 /*
 147  * Initializes the specified 'Match' data structure and the initial state of
 148  * commands.c for matching target windows of a command.
 149  *
 150  */
 151 void cmd_criteria_init(I3_CMD) {
 152     Con *con;
 153     owindow *ow;
 154
 155     DLOG("Initializing criteria, current_match = %p\n", current_match);
 156     match_free(current_match);
 157     match_init(current_match);
 158     while (!TAILQ_EMPTY(&owindows)) {
 159         ow = TAILQ_FIRST(&owindows);
 160         TAILQ_REMOVE(&owindows, ow, owindows);
 161         free(ow);
 162     }
 163     TAILQ_INIT(&owindows);
 164     /* copy all_cons */
 165     TAILQ_FOREACH(con, &all_cons, all_cons) {
 166         ow = smalloc(sizeof(owindow));
 167         ow->con = con;
 168         TAILQ_INSERT_TAIL(&owindows, ow, owindows);
 169     }
 170 }
 171
 172 /*
 173  * A match specification just finished (the closing square bracket was found),
 174  * so we filter the list of owindows.
 175  *
 176  */
 177 void cmd_criteria_match_windows(I3_CMD) {
 178     owindow *next, *current;
 179
 180     DLOG("match specification finished, matching...\n");
 181     /* copy the old list head to iterate through it and start with a fresh
 182      * list which will contain only matching windows */
 183     struct owindows_head old = owindows;
 184     TAILQ_INIT(&owindows);
 185     for (next = TAILQ_FIRST(&old); next != TAILQ_END(&old);) {
 186         /* make a copy of the next pointer and advance the pointer to the
 187          * next element as we are going to invalidate the element’s
 188          * next/prev pointers by calling TAILQ_INSERT_TAIL later */
 189         current = next;
 190         next = TAILQ_NEXT(next, owindows);
 191
 192         DLOG("checking if con %p / %s matches\n", current->con, current->con->name);
 193
 194         /* We use this flag to prevent matching on window-less containers if
 195          * only window-specific criteria were specified. */
 196         bool accept_match = false;
 197
 198         if (current_match->con_id != NULL) {
 199             accept_match = true;
 200
 201             if (current_match->con_id == current->con) {
 202                 DLOG("con_id matched.\n");
 203             } else {
 204                 DLOG("con_id does not match.\n");
 205                 FREE(current);
 206                 continue;
 207             }
 208         }
 209
 210         if (current_match->mark != NULL && !TAILQ_EMPTY(&(current->con->marks_head))) {
 211             accept_match = true;
 212             bool matched_by_mark = false;
 213
 214             mark_t *mark;
 215             TAILQ_FOREACH(mark, &(current->con->marks_head), marks) {
 216                 if (!regex_matches(current_match->mark, mark->name))
 217                     continue;
 218
 219                 DLOG("match by mark\n");
 220                 matched_by_mark = true;
 221                 break;
 222             }
 223
 224             if (!matched_by_mark) {
 225                 DLOG("mark does not match.\n");
 226                 FREE(current);
 227                 continue;
 228             }
 229         }
 230
 231         if (current->con->window != NULL) {
 232             if (match_matches_window(current_match, current->con->window)) {
 233                 DLOG("matches window!\n");
 234                 accept_match = true;
 235             } else {
 236                 DLOG("doesn't match\n");
 237                 FREE(current);
 238                 continue;
 239             }
 240         }
 241
 242         if (accept_match) {
 243             TAILQ_INSERT_TAIL(&owindows, current, owindows);
 244         } else {
 245             FREE(current);
 246             continue;
 247         }
 248     }
 249
 250     TAILQ_FOREACH(current, &owindows, owindows) {
 251         DLOG("matching: %p / %s\n", current->con, current->con->name);
 252     }
 253 }
 254
 255 /*
 256  * Interprets a ctype=cvalue pair and adds it to the current match
 257  * specification.
 258  *
 259  */
 260 void cmd_criteria_add(I3_CMD, const char *ctype, const char *cvalue) {
 261     match_parse_property(current_match, ctype, cvalue);
 262 }
 263
 264 static void move_matches_to_workspace(Con *ws) {
 265     owindow *current;
 266     TAILQ_FOREACH(current, &owindows, owindows) {
 267         DLOG("matching: %p / %s\n", current->con, current->con->name);
 268         con_move_to_workspace(current->con, ws, true, false, false);
 269     }
 270 }
 271
 272 /*
 273  * Implementation of 'move [window|container] [to] workspace
 274  * next|prev|next_on_output|prev_on_output|current'.
 275  *
 276  */
 277 void cmd_move_con_to_workspace(I3_CMD, const char *which) {
 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     move_matches_to_workspace(ws);
 311
 312     cmd_output->needs_tree_render = true;
 313     // XXX: default reply for now, make this a better reply
 314     ysuccess(true);
 315 }
 316
 317 /**
 318  * Implementation of 'move [window|container] [to] workspace back_and_forth'.
 319  *
 320  */
 321 void cmd_move_con_to_workspace_back_and_forth(I3_CMD) {
 322     Con *ws = workspace_back_and_forth_get();
 323     if (ws == NULL) {
 324         yerror("No workspace was previously active.");
 325         return;
 326     }
 327
 328     HANDLE_EMPTY_MATCH;
 329
 330     move_matches_to_workspace(ws);
 331
 332     cmd_output->needs_tree_render = true;
 333     // XXX: default reply for now, make this a better reply
 334     ysuccess(true);
 335 }
 336
 337 /*
 338  * Implementation of 'move [--no-auto-back-and-forth] [window|container] [to] workspace <name>'.
 339  *
 340  */
 341 void cmd_move_con_to_workspace_name(I3_CMD, const char *name, const char *_no_auto_back_and_forth) {
 342     if (strncasecmp(name, "__", strlen("__")) == 0) {
 343         LOG("You cannot move containers to i3-internal workspaces (\"%s\").\n", name);
 344         ysuccess(false);
 345         return;
 346     }
 347
 348     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 349
 350     /* We have nothing to move:
 351      *  when criteria was specified but didn't match any window or
 352      *  when criteria wasn't specified and we don't have any window focused. */
 353     if (!match_is_empty(current_match) && TAILQ_EMPTY(&owindows)) {
 354         ELOG("No windows match your criteria, cannot move.\n");
 355         ysuccess(false);
 356         return;
 357     } else if (match_is_empty(current_match) && focused->type == CT_WORKSPACE &&
 358                !con_has_children(focused)) {
 359         ysuccess(false);
 360         return;
 361     }
 362
 363     LOG("should move window to workspace %s\n", name);
 364     /* get the workspace */
 365     Con *ws = workspace_get(name, NULL);
 366
 367     if (!no_auto_back_and_forth)
 368         ws = maybe_auto_back_and_forth_workspace(ws);
 369
 370     HANDLE_EMPTY_MATCH;
 371
 372     move_matches_to_workspace(ws);
 373
 374     cmd_output->needs_tree_render = true;
 375     // XXX: default reply for now, make this a better reply
 376     ysuccess(true);
 377 }
 378
 379 /*
 380  * Implementation of 'move [--no-auto-back-and-forth] [window|container] [to] workspace number <name>'.
 381  *
 382  */
 383 void cmd_move_con_to_workspace_number(I3_CMD, const char *which, const char *_no_auto_back_and_forth) {
 384     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 385
 386     /* We have nothing to move:
 387      *  when criteria was specified but didn't match any window or
 388      *  when criteria wasn't specified and we don't have any window focused. */
 389     if ((!match_is_empty(current_match) && TAILQ_EMPTY(&owindows)) ||
 390         (match_is_empty(current_match) && focused->type == CT_WORKSPACE &&
 391          !con_has_children(focused))) {
 392         ysuccess(false);
 393         return;
 394     }
 395
 396     LOG("should move window to workspace %s\n", which);
 397
 398     long parsed_num = ws_name_to_number(which);
 399     if (parsed_num == -1) {
 400         LOG("Could not parse initial part of \"%s\" as a number.\n", which);
 401         yerror("Could not parse number \"%s\"", which);
 402         return;
 403     }
 404
 405     Con *ws = get_existing_workspace_by_num(parsed_num);
 406     if (!ws) {
 407         ws = workspace_get(which, NULL);
 408     }
 409
 410     if (!no_auto_back_and_forth)
 411         ws = maybe_auto_back_and_forth_workspace(ws);
 412
 413     HANDLE_EMPTY_MATCH;
 414
 415     move_matches_to_workspace(ws);
 416
 417     cmd_output->needs_tree_render = true;
 418     // XXX: default reply for now, make this a better reply
 419     ysuccess(true);
 420 }
 421
 422 static void cmd_resize_floating(I3_CMD, const char *way, const char *direction, Con *floating_con, int px) {
 423     LOG("floating resize\n");
 424     Rect old_rect = floating_con->rect;
 425     Con *focused_con = con_descend_focused(floating_con);
 426
 427     /* ensure that resize will take place even if pixel increment is smaller than
 428      * height increment or width increment.
 429      * fixes #1011 */
 430     const i3Window *window = focused_con->window;
 431     if (window != NULL) {
 432         if (strcmp(direction, "up") == 0 || strcmp(direction, "down") == 0 ||
 433             strcmp(direction, "height") == 0) {
 434             if (px < 0)
 435                 px = (-px < window->height_increment) ? -window->height_increment : px;
 436             else
 437                 px = (px < window->height_increment) ? window->height_increment : px;
 438         } else if (strcmp(direction, "left") == 0 || strcmp(direction, "right") == 0) {
 439             if (px < 0)
 440                 px = (-px < window->width_increment) ? -window->width_increment : px;
 441             else
 442                 px = (px < window->width_increment) ? window->width_increment : px;
 443         }
 444     }
 445
 446     if (strcmp(direction, "up") == 0) {
 447         floating_con->rect.height += px;
 448     } else if (strcmp(direction, "down") == 0 || strcmp(direction, "height") == 0) {
 449         floating_con->rect.height += px;
 450     } else if (strcmp(direction, "left") == 0) {
 451         floating_con->rect.width += px;
 452     } else {
 453         floating_con->rect.width += px;
 454     }
 455
 456     floating_check_size(floating_con);
 457
 458     /* Did we actually resize anything or did the size constraints prevent us?
 459      * If we could not resize, exit now to not move the window. */
 460     if (memcmp(&old_rect, &(floating_con->rect), sizeof(Rect)) == 0)
 461         return;
 462
 463     if (strcmp(direction, "up") == 0) {
 464         floating_con->rect.y -= (floating_con->rect.height - old_rect.height);
 465     } else if (strcmp(direction, "left") == 0) {
 466         floating_con->rect.x -= (floating_con->rect.width - old_rect.width);
 467     }
 468
 469     /* If this is a scratchpad window, don't auto center it from now on. */
 470     if (floating_con->scratchpad_state == SCRATCHPAD_FRESH)
 471         floating_con->scratchpad_state = SCRATCHPAD_CHANGED;
 472 }
 473
 474 static bool cmd_resize_tiling_direction(I3_CMD, Con *current, const char *way, const char *direction, int ppt) {
 475     LOG("tiling resize\n");
 476     Con *second = NULL;
 477     Con *first = current;
 478     direction_t search_direction;
 479     if (!strcmp(direction, "left"))
 480         search_direction = D_LEFT;
 481     else if (!strcmp(direction, "right"))
 482         search_direction = D_RIGHT;
 483     else if (!strcmp(direction, "up"))
 484         search_direction = D_UP;
 485     else
 486         search_direction = D_DOWN;
 487
 488     bool res = resize_find_tiling_participants(&first, &second, search_direction, false);
 489     if (!res) {
 490         LOG("No second container in this direction found.\n");
 491         ysuccess(false);
 492         return false;
 493     }
 494
 495     /* get the default percentage */
 496     int children = con_num_children(first->parent);
 497     LOG("ins. %d children\n", children);
 498     double percentage = 1.0 / children;
 499     LOG("default percentage = %f\n", percentage);
 500
 501     /* resize */
 502     LOG("first->percent before = %f\n", first->percent);
 503     LOG("second->percent before = %f\n", second->percent);
 504     if (first->percent == 0.0)
 505         first->percent = percentage;
 506     if (second->percent == 0.0)
 507         second->percent = percentage;
 508     double new_first_percent = first->percent + ((double)ppt / 100.0);
 509     double new_second_percent = second->percent - ((double)ppt / 100.0);
 510     LOG("new_first_percent = %f\n", new_first_percent);
 511     LOG("new_second_percent = %f\n", new_second_percent);
 512     /* Ensure that the new percentages are positive. */
 513     if (new_first_percent > 0.0 && new_second_percent > 0.0) {
 514         first->percent = new_first_percent;
 515         second->percent = new_second_percent;
 516         LOG("first->percent after = %f\n", first->percent);
 517         LOG("second->percent after = %f\n", second->percent);
 518     } else {
 519         LOG("Not resizing, already at minimum size\n");
 520     }
 521
 522     return true;
 523 }
 524
 525 static bool cmd_resize_tiling_width_height(I3_CMD, Con *current, const char *way, const char *direction, int ppt) {
 526     LOG("width/height resize\n");
 527
 528     /* get the appropriate current container (skip stacked/tabbed cons) */
 529     Con *dummy = NULL;
 530     direction_t search_direction = (strcmp(direction, "width") == 0 ? D_LEFT : D_DOWN);
 531     bool search_result = resize_find_tiling_participants(&current, &dummy, search_direction, true);
 532     if (search_result == false) {
 533         ysuccess(false);
 534         return false;
 535     }
 536
 537     /* get the default percentage */
 538     int children = con_num_children(current->parent);
 539     LOG("ins. %d children\n", children);
 540     double percentage = 1.0 / children;
 541     LOG("default percentage = %f\n", percentage);
 542
 543     /* Ensure all the other children have a percentage set. */
 544     Con *child;
 545     TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
 546         LOG("child->percent = %f (child %p)\n", child->percent, child);
 547         if (child->percent == 0.0)
 548             child->percent = percentage;
 549     }
 550
 551     double new_current_percent = current->percent + ((double)ppt / 100.0);
 552     double subtract_percent = ((double)ppt / 100.0) / (children - 1);
 553     LOG("new_current_percent = %f\n", new_current_percent);
 554     LOG("subtract_percent = %f\n", subtract_percent);
 555     /* Ensure that the new percentages are positive. */
 556     TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
 557         if (child == current)
 558             continue;
 559         if (child->percent - subtract_percent <= 0.0) {
 560             LOG("Not resizing, already at minimum size (child %p would end up with a size of %.f\n", child, child->percent - subtract_percent);
 561             ysuccess(false);
 562             return false;
 563         }
 564     }
 565     if (new_current_percent <= 0.0) {
 566         LOG("Not resizing, already at minimum size\n");
 567         ysuccess(false);
 568         return false;
 569     }
 570
 571     current->percent = new_current_percent;
 572     LOG("current->percent after = %f\n", current->percent);
 573
 574     TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
 575         if (child == current)
 576             continue;
 577         child->percent -= subtract_percent;
 578         LOG("child->percent after (%p) = %f\n", child, child->percent);
 579     }
 580
 581     return true;
 582 }
 583
 584 /*
 585  * Implementation of 'resize grow|shrink <direction> [<px> px] [or <ppt> ppt]'.
 586  *
 587  */
 588 void cmd_resize(I3_CMD, const char *way, const char *direction, long resize_px, long resize_ppt) {
 589     DLOG("resizing in way %s, direction %s, px %ld or ppt %ld\n", way, direction, resize_px, resize_ppt);
 590     if (strcmp(way, "shrink") == 0) {
 591         resize_px *= -1;
 592         resize_ppt *= -1;
 593     }
 594
 595     HANDLE_EMPTY_MATCH;
 596
 597     owindow *current;
 598     TAILQ_FOREACH(current, &owindows, owindows) {
 599         /* Don't handle dock windows (issue #1201) */
 600         if (current->con->window && current->con->window->dock) {
 601             DLOG("This is a dock window. Not resizing (con = %p)\n)", current->con);
 602             continue;
 603         }
 604
 605         Con *floating_con;
 606         if ((floating_con = con_inside_floating(current->con))) {
 607             cmd_resize_floating(current_match, cmd_output, way, direction, floating_con, resize_px);
 608         } else {
 609             if (strcmp(direction, "width") == 0 ||
 610                 strcmp(direction, "height") == 0) {
 611                 if (!cmd_resize_tiling_width_height(current_match, cmd_output,
 612                                                     current->con, way, direction, resize_ppt))
 613                     return;
 614             } else {
 615                 if (!cmd_resize_tiling_direction(current_match, cmd_output,
 616                                                  current->con, way, direction, resize_ppt))
 617                     return;
 618             }
 619         }
 620     }
 621
 622     cmd_output->needs_tree_render = true;
 623     // XXX: default reply for now, make this a better reply
 624     ysuccess(true);
 625 }
 626
 627 /*
 628  * Implementation of 'resize set <width> [px | ppt] <height> [px | ppt]'.
 629  *
 630  */
 631 void cmd_resize_set(I3_CMD, long cwidth, const char *mode_width, long cheight, const char *mode_height) {
 632     DLOG("resizing to %ld %s x %ld %s\n", cwidth, mode_width, cheight, mode_height);
 633     if (cwidth < 0 || cheight < 0) {
 634         ELOG("Resize failed: dimensions cannot be negative (was %ld %s x %ld %s)\n", cwidth, mode_width, cheight, mode_height);
 635         return;
 636     }
 637
 638     HANDLE_EMPTY_MATCH;
 639
 640     owindow *current;
 641     bool success = true;
 642     TAILQ_FOREACH(current, &owindows, owindows) {
 643         Con *floating_con;
 644         if ((floating_con = con_inside_floating(current->con))) {
 645             Con *output = con_get_output(floating_con);
 646             if (cwidth == 0) {
 647                 cwidth = output->rect.width;
 648             } else if (mode_width && strcmp(mode_width, "ppt") == 0) {
 649                 cwidth = output->rect.width * ((double)cwidth / 100.0);
 650             }
 651             if (cheight == 0) {
 652                 cheight = output->rect.height;
 653             } else if (mode_height && strcmp(mode_height, "ppt") == 0) {
 654                 cheight = output->rect.height * ((double)cheight / 100.0);
 655             }
 656             floating_resize(floating_con, cwidth, cheight);
 657         } else {
 658             if (current->con->window && current->con->window->dock) {
 659                 DLOG("This is a dock window. Not resizing (con = %p)\n)", current->con);
 660                 continue;
 661             }
 662
 663             if (cwidth > 0 && mode_width && strcmp(mode_width, "ppt") == 0) {
 664                 /* get the appropriate current container (skip stacked/tabbed cons) */
 665                 Con *target = current->con;
 666                 Con *dummy;
 667                 resize_find_tiling_participants(&target, &dummy, D_LEFT, true);
 668
 669                 /* Calculate new size for the target container */
 670                 double current_percent = target->percent;
 671                 char *action_string;
 672                 long adjustment;
 673
 674                 if (current_percent > cwidth) {
 675                     action_string = "shrink";
 676                     adjustment = (int)(current_percent * 100) - cwidth;
 677                 } else {
 678                     action_string = "grow";
 679                     adjustment = cwidth - (int)(current_percent * 100);
 680                 }
 681
 682                 /* perform resizing and report failure if not possible */
 683                 if (!cmd_resize_tiling_width_height(current_match, cmd_output,
 684                                                     target, action_string, "width", adjustment)) {
 685                     success = false;
 686                 }
 687             }
 688
 689             if (cheight > 0 && mode_width && strcmp(mode_width, "ppt") == 0) {
 690                 /* get the appropriate current container (skip stacked/tabbed cons) */
 691                 Con *target = current->con;
 692                 Con *dummy;
 693                 resize_find_tiling_participants(&target, &dummy, D_DOWN, true);
 694
 695                 /* Calculate new size for the target container */
 696                 double current_percent = target->percent;
 697                 char *action_string;
 698                 long adjustment;
 699
 700                 if (current_percent > cheight) {
 701                     action_string = "shrink";
 702                     adjustment = (int)(current_percent * 100) - cheight;
 703                 } else {
 704                     action_string = "grow";
 705                     adjustment = cheight - (int)(current_percent * 100);
 706                 }
 707
 708                 /* perform resizing and report failure if not possible */
 709                 if (!cmd_resize_tiling_width_height(current_match, cmd_output,
 710                                                     target, action_string, "height", adjustment)) {
 711                     success = false;
 712                 }
 713             }
 714         }
 715     }
 716
 717     cmd_output->needs_tree_render = true;
 718     ysuccess(success);
 719 }
 720
 721 /*
 722  * Implementation of 'border normal|pixel [<n>]', 'border none|1pixel|toggle'.
 723  *
 724  */
 725 void cmd_border(I3_CMD, const char *border_style_str, long border_width) {
 726     DLOG("border style should be changed to %s with border width %ld\n", border_style_str, border_width);
 727     owindow *current;
 728
 729     HANDLE_EMPTY_MATCH;
 730
 731     TAILQ_FOREACH(current, &owindows, owindows) {
 732         DLOG("matching: %p / %s\n", current->con, current->con->name);
 733         int border_style = current->con->border_style;
 734         int con_border_width = border_width;
 735
 736         if (strcmp(border_style_str, "toggle") == 0) {
 737             border_style++;
 738             border_style %= 3;
 739             if (border_style == BS_NORMAL)
 740                 con_border_width = 2;
 741             else if (border_style == BS_NONE)
 742                 con_border_width = 0;
 743             else if (border_style == BS_PIXEL)
 744                 con_border_width = 1;
 745         } else {
 746             if (strcmp(border_style_str, "normal") == 0) {
 747                 border_style = BS_NORMAL;
 748             } else if (strcmp(border_style_str, "pixel") == 0) {
 749                 border_style = BS_PIXEL;
 750             } else if (strcmp(border_style_str, "1pixel") == 0) {
 751                 border_style = BS_PIXEL;
 752                 con_border_width = 1;
 753             } else if (strcmp(border_style_str, "none") == 0) {
 754                 border_style = BS_NONE;
 755             } else {
 756                 ELOG("BUG: called with border_style=%s\n", border_style_str);
 757                 ysuccess(false);
 758                 return;
 759             }
 760         }
 761
 762         con_set_border_style(current->con, border_style, logical_px(con_border_width));
 763     }
 764
 765     cmd_output->needs_tree_render = true;
 766     // XXX: default reply for now, make this a better reply
 767     ysuccess(true);
 768 }
 769
 770 /*
 771  * Implementation of 'nop <comment>'.
 772  *
 773  */
 774 void cmd_nop(I3_CMD, const char *comment) {
 775     LOG("-------------------------------------------------\n");
 776     LOG("  NOP: %s\n", comment);
 777     LOG("-------------------------------------------------\n");
 778     ysuccess(true);
 779 }
 780
 781 /*
 782  * Implementation of 'append_layout <path>'.
 783  *
 784  */
 785 void cmd_append_layout(I3_CMD, const char *cpath) {
 786     LOG("Appending layout \"%s\"\n", cpath);
 787
 788     /* Make sure we allow paths like '~/.i3/layout.json' */
 789     char *path = resolve_tilde(cpath);
 790
 791     char *buf = NULL;
 792     ssize_t len;
 793     if ((len = slurp(path, &buf)) < 0) {
 794         /* slurp already logged an error. */
 795         goto out;
 796     }
 797
 798     if (!json_validate(buf, len)) {
 799         ELOG("Could not parse \"%s\" as JSON, not loading.\n", path);
 800         yerror("Could not parse \"%s\" as JSON.", path);
 801         goto out;
 802     }
 803
 804     json_content_t content = json_determine_content(buf, len);
 805     LOG("JSON content = %d\n", content);
 806     if (content == JSON_CONTENT_UNKNOWN) {
 807         ELOG("Could not determine the contents of \"%s\", not loading.\n", path);
 808         yerror("Could not determine the contents of \"%s\".", path);
 809         goto out;
 810     }
 811
 812     Con *parent = focused;
 813     if (content == JSON_CONTENT_WORKSPACE) {
 814         parent = output_get_content(con_get_output(parent));
 815     } else {
 816         /* We need to append the layout to a split container, since a leaf
 817          * container must not have any children (by definition).
 818          * Note that we explicitly check for workspaces, since they are okay for
 819          * this purpose, but con_accepts_window() returns false for workspaces. */
 820         while (parent->type != CT_WORKSPACE && !con_accepts_window(parent))
 821             parent = parent->parent;
 822     }
 823     DLOG("Appending to parent=%p instead of focused=%p\n", parent, focused);
 824     char *errormsg = NULL;
 825     tree_append_json(parent, buf, len, &errormsg);
 826     if (errormsg != NULL) {
 827         yerror(errormsg);
 828         free(errormsg);
 829         /* Note that we continue executing since tree_append_json() has
 830          * side-effects — user-provided layouts can be partly valid, partly
 831          * invalid, leading to half of the placeholder containers being
 832          * created. */
 833     } else {
 834         ysuccess(true);
 835     }
 836
 837     // XXX: This is a bit of a kludge. Theoretically, render_con(parent,
 838     // false); should be enough, but when sending 'workspace 4; append_layout
 839     // /tmp/foo.json', the needs_tree_render == true of the workspace command
 840     // is not executed yet and will be batched with append_layout’s
 841     // needs_tree_render after the parser finished. We should check if that is
 842     // necessary at all.
 843     render_con(croot, false);
 844
 845     restore_open_placeholder_windows(parent);
 846
 847     if (content == JSON_CONTENT_WORKSPACE)
 848         ipc_send_workspace_event("restored", parent, NULL);
 849
 850     cmd_output->needs_tree_render = true;
 851 out:
 852     free(path);
 853     free(buf);
 854 }
 855
 856 /*
 857  * Implementation of 'workspace next|prev|next_on_output|prev_on_output'.
 858  *
 859  */
 860 void cmd_workspace(I3_CMD, const char *which) {
 861     Con *ws;
 862
 863     DLOG("which=%s\n", which);
 864
 865     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 866         LOG("Cannot switch workspace while in global fullscreen\n");
 867         ysuccess(false);
 868         return;
 869     }
 870
 871     if (strcmp(which, "next") == 0)
 872         ws = workspace_next();
 873     else if (strcmp(which, "prev") == 0)
 874         ws = workspace_prev();
 875     else if (strcmp(which, "next_on_output") == 0)
 876         ws = workspace_next_on_output();
 877     else if (strcmp(which, "prev_on_output") == 0)
 878         ws = workspace_prev_on_output();
 879     else {
 880         ELOG("BUG: called with which=%s\n", which);
 881         ysuccess(false);
 882         return;
 883     }
 884
 885     workspace_show(ws);
 886
 887     cmd_output->needs_tree_render = true;
 888     // XXX: default reply for now, make this a better reply
 889     ysuccess(true);
 890 }
 891
 892 /*
 893  * Implementation of 'workspace [--no-auto-back-and-forth] number <name>'
 894  *
 895  */
 896 void cmd_workspace_number(I3_CMD, const char *which, const char *_no_auto_back_and_forth) {
 897     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 898
 899     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 900         LOG("Cannot switch workspace while in global fullscreen\n");
 901         ysuccess(false);
 902         return;
 903     }
 904
 905     long parsed_num = ws_name_to_number(which);
 906     if (parsed_num == -1) {
 907         LOG("Could not parse initial part of \"%s\" as a number.\n", which);
 908         yerror("Could not parse number \"%s\"", which);
 909         return;
 910     }
 911
 912     Con *workspace = get_existing_workspace_by_num(parsed_num);
 913     if (!workspace) {
 914         LOG("There is no workspace with number %ld, creating a new one.\n", parsed_num);
 915         ysuccess(true);
 916         workspace_show_by_name(which);
 917         cmd_output->needs_tree_render = true;
 918         return;
 919     }
 920     if (!no_auto_back_and_forth && maybe_back_and_forth(cmd_output, workspace->name)) {
 921         ysuccess(true);
 922         return;
 923     }
 924     workspace_show(workspace);
 925
 926     cmd_output->needs_tree_render = true;
 927     // XXX: default reply for now, make this a better reply
 928     ysuccess(true);
 929 }
 930
 931 /*
 932  * Implementation of 'workspace back_and_forth'.
 933  *
 934  */
 935 void cmd_workspace_back_and_forth(I3_CMD) {
 936     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 937         LOG("Cannot switch workspace while in global fullscreen\n");
 938         ysuccess(false);
 939         return;
 940     }
 941
 942     workspace_back_and_forth();
 943
 944     cmd_output->needs_tree_render = true;
 945     // XXX: default reply for now, make this a better reply
 946     ysuccess(true);
 947 }
 948
 949 /*
 950  * Implementation of 'workspace [--no-auto-back-and-forth] <name>'
 951  *
 952  */
 953 void cmd_workspace_name(I3_CMD, const char *name, const char *_no_auto_back_and_forth) {
 954     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 955
 956     if (strncasecmp(name, "__", strlen("__")) == 0) {
 957         LOG("You cannot switch to the i3-internal workspaces (\"%s\").\n", name);
 958         ysuccess(false);
 959         return;
 960     }
 961
 962     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 963         LOG("Cannot switch workspace while in global fullscreen\n");
 964         ysuccess(false);
 965         return;
 966     }
 967
 968     DLOG("should switch to workspace %s\n", name);
 969     if (!no_auto_back_and_forth && maybe_back_and_forth(cmd_output, name)) {
 970         ysuccess(true);
 971         return;
 972     }
 973     workspace_show_by_name(name);
 974
 975     cmd_output->needs_tree_render = true;
 976     // XXX: default reply for now, make this a better reply
 977     ysuccess(true);
 978 }
 979
 980 /*
 981  * Implementation of 'mark [--add|--replace] [--toggle] <mark>'
 982  *
 983  */
 984 void cmd_mark(I3_CMD, const char *mark, const char *mode, const char *toggle) {
 985     HANDLE_EMPTY_MATCH;
 986
 987     owindow *current = TAILQ_FIRST(&owindows);
 988     if (current == NULL) {
 989         ysuccess(false);
 990         return;
 991     }
 992
 993     /* Marks must be unique, i.e., no two windows must have the same mark. */
 994     if (current != TAILQ_LAST(&owindows, owindows_head)) {
 995         yerror("A mark must not be put onto more than one window");
 996         return;
 997     }
 998
 999     DLOG("matching: %p / %s\n", current->con, current->con->name);
1000
1001     mark_mode_t mark_mode = (mode == NULL || strcmp(mode, "--replace") == 0) ? MM_REPLACE : MM_ADD;
1002     if (toggle != NULL) {
1003         con_mark_toggle(current->con, mark, mark_mode);
1004     } else {
1005         con_mark(current->con, mark, mark_mode);
1006     }
1007
1008     cmd_output->needs_tree_render = true;
1009     // XXX: default reply for now, make this a better reply
1010     ysuccess(true);
1011 }
1012
1013 /*
1014  * Implementation of 'unmark [mark]'
1015  *
1016  */
1017 void cmd_unmark(I3_CMD, const char *mark) {
1018     if (match_is_empty(current_match)) {
1019         con_unmark(NULL, mark);
1020     } else {
1021         owindow *current;
1022         TAILQ_FOREACH(current, &owindows, owindows) {
1023             con_unmark(current->con, mark);
1024         }
1025     }
1026
1027     cmd_output->needs_tree_render = true;
1028     // XXX: default reply for now, make this a better reply
1029     ysuccess(true);
1030 }
1031
1032 /*
1033  * Implementation of 'mode <string>'.
1034  *
1035  */
1036 void cmd_mode(I3_CMD, const char *mode) {
1037     DLOG("mode=%s\n", mode);
1038     switch_mode(mode);
1039
1040     // XXX: default reply for now, make this a better reply
1041     ysuccess(true);
1042 }
1043
1044 /*
1045  * Implementation of 'move [window|container] [to] output <str>'.
1046  *
1047  */
1048 void cmd_move_con_to_output(I3_CMD, const char *name) {
1049     DLOG("Should move window to output \"%s\".\n", name);
1050     HANDLE_EMPTY_MATCH;
1051
1052     owindow *current;
1053     bool had_error = false;
1054     TAILQ_FOREACH(current, &owindows, owindows) {
1055         DLOG("matching: %p / %s\n", current->con, current->con->name);
1056
1057         had_error |= !con_move_to_output_name(current->con, name, true);
1058     }
1059
1060     cmd_output->needs_tree_render = true;
1061     ysuccess(!had_error);
1062 }
1063
1064 /*
1065  * Implementation of 'move [container|window] [to] mark <str>'.
1066  *
1067  */
1068 void cmd_move_con_to_mark(I3_CMD, const char *mark) {
1069     DLOG("moving window to mark \"%s\"\n", mark);
1070
1071     HANDLE_EMPTY_MATCH;
1072
1073     bool result = true;
1074     owindow *current;
1075     TAILQ_FOREACH(current, &owindows, owindows) {
1076         DLOG("moving matched window %p / %s to mark \"%s\"\n", current->con, current->con->name, mark);
1077         result &= con_move_to_mark(current->con, mark);
1078     }
1079
1080     cmd_output->needs_tree_render = true;
1081     ysuccess(result);
1082 }
1083
1084 /*
1085  * Implementation of 'floating enable|disable|toggle'
1086  *
1087  */
1088 void cmd_floating(I3_CMD, const char *floating_mode) {
1089     owindow *current;
1090
1091     DLOG("floating_mode=%s\n", floating_mode);
1092
1093     HANDLE_EMPTY_MATCH;
1094
1095     TAILQ_FOREACH(current, &owindows, owindows) {
1096         DLOG("matching: %p / %s\n", current->con, current->con->name);
1097         if (strcmp(floating_mode, "toggle") == 0) {
1098             DLOG("should toggle mode\n");
1099             toggle_floating_mode(current->con, false);
1100         } else {
1101             DLOG("should switch mode to %s\n", floating_mode);
1102             if (strcmp(floating_mode, "enable") == 0) {
1103                 floating_enable(current->con, false);
1104             } else {
1105                 floating_disable(current->con, false);
1106             }
1107         }
1108     }
1109
1110     cmd_output->needs_tree_render = true;
1111     // XXX: default reply for now, make this a better reply
1112     ysuccess(true);
1113 }
1114
1115 /*
1116  * Implementation of 'move workspace to [output] <str>'.
1117  *
1118  */
1119 void cmd_move_workspace_to_output(I3_CMD, const char *name) {
1120     DLOG("should move workspace to output %s\n", name);
1121
1122     HANDLE_EMPTY_MATCH;
1123
1124     owindow *current;
1125     TAILQ_FOREACH(current, &owindows, owindows) {
1126         Con *ws = con_get_workspace(current->con);
1127         if (con_is_internal(ws)) {
1128             continue;
1129         }
1130
1131         Output *current_output = get_output_for_con(ws);
1132         if (current_output == NULL) {
1133             ELOG("Cannot get current output. This is a bug in i3.\n");
1134             ysuccess(false);
1135             return;
1136         }
1137
1138         Output *target_output = get_output_from_string(current_output, name);
1139         if (!target_output) {
1140             ELOG("Could not get output from string \"%s\"\n", name);
1141             ysuccess(false);
1142             return;
1143         }
1144
1145         bool success = workspace_move_to_output(ws, target_output);
1146         if (!success) {
1147             ELOG("Failed to move workspace to output.\n");
1148             ysuccess(false);
1149             return;
1150         }
1151     }
1152
1153     cmd_output->needs_tree_render = true;
1154     // XXX: default reply for now, make this a better reply
1155     ysuccess(true);
1156 }
1157
1158 /*
1159  * Implementation of 'split v|h|t|vertical|horizontal|toggle'.
1160  *
1161  */
1162 void cmd_split(I3_CMD, const char *direction) {
1163     HANDLE_EMPTY_MATCH;
1164
1165     owindow *current;
1166     LOG("splitting in direction %c\n", direction[0]);
1167     TAILQ_FOREACH(current, &owindows, owindows) {
1168         if (con_is_docked(current->con)) {
1169             ELOG("Cannot split a docked container, skipping.\n");
1170             continue;
1171         }
1172
1173         DLOG("matching: %p / %s\n", current->con, current->con->name);
1174         if (direction[0] == 't') {
1175             layout_t current_layout;
1176             if (current->con->type == CT_WORKSPACE) {
1177                 current_layout = current->con->layout;
1178             } else {
1179                 current_layout = current->con->parent->layout;
1180             }
1181             /* toggling split orientation */
1182             if (current_layout == L_SPLITH) {
1183                 tree_split(current->con, VERT);
1184             } else {
1185                 tree_split(current->con, HORIZ);
1186             }
1187         } else {
1188             tree_split(current->con, (direction[0] == 'v' ? VERT : HORIZ));
1189         }
1190     }
1191
1192     cmd_output->needs_tree_render = true;
1193     // XXX: default reply for now, make this a better reply
1194     ysuccess(true);
1195 }
1196
1197 /*
1198  * Implementation of 'kill [window|client]'.
1199  *
1200  */
1201 void cmd_kill(I3_CMD, const char *kill_mode_str) {
1202     if (kill_mode_str == NULL)
1203         kill_mode_str = "window";
1204
1205     DLOG("kill_mode=%s\n", kill_mode_str);
1206
1207     int kill_mode;
1208     if (strcmp(kill_mode_str, "window") == 0)
1209         kill_mode = KILL_WINDOW;
1210     else if (strcmp(kill_mode_str, "client") == 0)
1211         kill_mode = KILL_CLIENT;
1212     else {
1213         ELOG("BUG: called with kill_mode=%s\n", kill_mode_str);
1214         ysuccess(false);
1215         return;
1216     }
1217
1218     HANDLE_EMPTY_MATCH;
1219
1220     owindow *current;
1221     TAILQ_FOREACH(current, &owindows, owindows) {
1222         con_close(current->con, kill_mode);
1223     }
1224
1225     cmd_output->needs_tree_render = true;
1226     // XXX: default reply for now, make this a better reply
1227     ysuccess(true);
1228 }
1229
1230 /*
1231  * Implementation of 'exec [--no-startup-id] <command>'.
1232  *
1233  */
1234 void cmd_exec(I3_CMD, const char *nosn, const char *command) {
1235     bool no_startup_id = (nosn != NULL);
1236
1237     DLOG("should execute %s, no_startup_id = %d\n", command, no_startup_id);
1238     start_application(command, no_startup_id);
1239
1240     // XXX: default reply for now, make this a better reply
1241     ysuccess(true);
1242 }
1243
1244 /*
1245  * Implementation of 'focus left|right|up|down'.
1246  *
1247  */
1248 void cmd_focus_direction(I3_CMD, const char *direction) {
1249     DLOG("direction = *%s*\n", direction);
1250
1251     if (strcmp(direction, "left") == 0)
1252         tree_next('p', HORIZ);
1253     else if (strcmp(direction, "right") == 0)
1254         tree_next('n', HORIZ);
1255     else if (strcmp(direction, "up") == 0)
1256         tree_next('p', VERT);
1257     else if (strcmp(direction, "down") == 0)
1258         tree_next('n', VERT);
1259     else {
1260         ELOG("Invalid focus direction (%s)\n", direction);
1261         ysuccess(false);
1262         return;
1263     }
1264
1265     cmd_output->needs_tree_render = true;
1266     // XXX: default reply for now, make this a better reply
1267     ysuccess(true);
1268 }
1269
1270 /*
1271  * Focus a container and disable any other fullscreen container not permitting the focus.
1272  *
1273  */
1274 static void cmd_focus_force_focus(Con *con) {
1275     /* Disable fullscreen container in workspace with container to be focused. */
1276     Con *ws = con_get_workspace(con);
1277     Con *fullscreen_on_ws = (focused && focused->fullscreen_mode == CF_GLOBAL) ? focused : con_get_fullscreen_con(ws, CF_OUTPUT);
1278     if (fullscreen_on_ws && fullscreen_on_ws != con && !con_has_parent(con, fullscreen_on_ws)) {
1279         con_disable_fullscreen(fullscreen_on_ws);
1280     }
1281     con_activate(con);
1282 }
1283
1284 /*
1285  * Implementation of 'focus tiling|floating|mode_toggle'.
1286  *
1287  */
1288 void cmd_focus_window_mode(I3_CMD, const char *window_mode) {
1289     DLOG("window_mode = %s\n", window_mode);
1290
1291     bool to_floating = false;
1292     if (strcmp(window_mode, "mode_toggle") == 0) {
1293         to_floating = !con_inside_floating(focused);
1294     } else if (strcmp(window_mode, "floating") == 0) {
1295         to_floating = true;
1296     } else if (strcmp(window_mode, "tiling") == 0) {
1297         to_floating = false;
1298     }
1299
1300     Con *ws = con_get_workspace(focused);
1301     Con *current;
1302     bool success = false;
1303     TAILQ_FOREACH(current, &(ws->focus_head), focused) {
1304         if ((to_floating && current->type != CT_FLOATING_CON) ||
1305             (!to_floating && current->type == CT_FLOATING_CON))
1306             continue;
1307
1308         cmd_focus_force_focus(con_descend_focused(current));
1309         success = true;
1310         break;
1311     }
1312
1313     if (success) {
1314         cmd_output->needs_tree_render = true;
1315         ysuccess(true);
1316     } else {
1317         yerror("Failed to find a %s container in workspace.", to_floating ? "floating" : "tiling");
1318     }
1319 }
1320
1321 /*
1322  * Implementation of 'focus parent|child'.
1323  *
1324  */
1325 void cmd_focus_level(I3_CMD, const char *level) {
1326     DLOG("level = %s\n", level);
1327     bool success = false;
1328
1329     /* Focusing the parent can only be allowed if the newly
1330      * focused container won't escape the fullscreen container. */
1331     if (strcmp(level, "parent") == 0) {
1332         if (focused && focused->parent) {
1333             if (con_fullscreen_permits_focusing(focused->parent))
1334                 success = level_up();
1335             else
1336                 ELOG("'focus parent': Currently in fullscreen, not going up\n");
1337         }
1338     }
1339
1340     /* Focusing a child should always be allowed. */
1341     else
1342         success = level_down();
1343
1344     cmd_output->needs_tree_render = success;
1345     // XXX: default reply for now, make this a better reply
1346     ysuccess(success);
1347 }
1348
1349 /*
1350  * Implementation of 'focus'.
1351  *
1352  */
1353 void cmd_focus(I3_CMD) {
1354     DLOG("current_match = %p\n", current_match);
1355
1356     if (match_is_empty(current_match)) {
1357         ELOG("You have to specify which window/container should be focused.\n");
1358         ELOG("Example: [class=\"urxvt\" title=\"irssi\"] focus\n");
1359
1360         yerror("You have to specify which window/container should be focused");
1361
1362         return;
1363     }
1364
1365     Con *__i3_scratch = workspace_get("__i3_scratch", NULL);
1366     int count = 0;
1367     owindow *current;
1368     TAILQ_FOREACH(current, &owindows, owindows) {
1369         Con *ws = con_get_workspace(current->con);
1370         /* If no workspace could be found, this was a dock window.
1371          * Just skip it, you cannot focus dock windows. */
1372         if (!ws)
1373             continue;
1374
1375         /* In case this is a scratchpad window, call scratchpad_show(). */
1376         if (ws == __i3_scratch) {
1377             scratchpad_show(current->con);
1378             count++;
1379             /* While for the normal focus case we can change focus multiple
1380              * times and only a single window ends up focused, we could show
1381              * multiple scratchpad windows. So, rather break here. */
1382             break;
1383         }
1384
1385         /* If the container is not on the current workspace,
1386          * workspace_show() will switch to a different workspace and (if
1387          * enabled) trigger a mouse pointer warp to the currently focused
1388          * container (!) on the target workspace.
1389          *
1390          * Therefore, before calling workspace_show(), we make sure that
1391          * 'current' will be focused on the workspace. However, we cannot
1392          * just con_focus(current) because then the pointer will not be
1393          * warped at all (the code thinks we are already there).
1394          *
1395          * So we focus 'current' to make it the currently focused window of
1396          * the target workspace, then revert focus. */
1397         Con *currently_focused = focused;
1398         cmd_focus_force_focus(current->con);
1399         con_activate(currently_focused);
1400
1401         /* Now switch to the workspace, then focus */
1402         workspace_show(ws);
1403         LOG("focusing %p / %s\n", current->con, current->con->name);
1404         con_activate(current->con);
1405         count++;
1406     }
1407
1408     if (count > 1)
1409         LOG("WARNING: Your criteria for the focus command matches %d containers, "
1410             "while only exactly one container can be focused at a time.\n",
1411             count);
1412
1413     cmd_output->needs_tree_render = true;
1414     ysuccess(count > 0);
1415 }
1416
1417 /*
1418  * Implementation of 'fullscreen enable|toggle [global]' and
1419  *                   'fullscreen disable'
1420  *
1421  */
1422 void cmd_fullscreen(I3_CMD, const char *action, const char *fullscreen_mode) {
1423     fullscreen_mode_t mode = strcmp(fullscreen_mode, "global") == 0 ? CF_GLOBAL : CF_OUTPUT;
1424     DLOG("%s fullscreen, mode = %s\n", action, fullscreen_mode);
1425     owindow *current;
1426
1427     HANDLE_EMPTY_MATCH;
1428
1429     TAILQ_FOREACH(current, &owindows, owindows) {
1430         DLOG("matching: %p / %s\n", current->con, current->con->name);
1431         if (strcmp(action, "toggle") == 0) {
1432             con_toggle_fullscreen(current->con, mode);
1433         } else if (strcmp(action, "enable") == 0) {
1434             con_enable_fullscreen(current->con, mode);
1435         } else if (strcmp(action, "disable") == 0) {
1436             con_disable_fullscreen(current->con);
1437         }
1438     }
1439
1440     cmd_output->needs_tree_render = true;
1441     // XXX: default reply for now, make this a better reply
1442     ysuccess(true);
1443 }
1444
1445 /*
1446  * Implementation of 'sticky enable|disable|toggle'.
1447  *
1448  */
1449 void cmd_sticky(I3_CMD, const char *action) {
1450     DLOG("%s sticky on window\n", action);
1451     HANDLE_EMPTY_MATCH;
1452
1453     owindow *current;
1454     TAILQ_FOREACH(current, &owindows, owindows) {
1455         if (current->con->window == NULL) {
1456             ELOG("only containers holding a window can be made sticky, skipping con = %p\n", current->con);
1457             continue;
1458         }
1459         DLOG("setting sticky for container = %p / %s\n", current->con, current->con->name);
1460
1461         bool sticky = false;
1462         if (strcmp(action, "enable") == 0)
1463             sticky = true;
1464         else if (strcmp(action, "disable") == 0)
1465             sticky = false;
1466         else if (strcmp(action, "toggle") == 0)
1467             sticky = !current->con->sticky;
1468
1469         current->con->sticky = sticky;
1470         ewmh_update_sticky(current->con->window->id, sticky);
1471     }
1472
1473     /* A window we made sticky might not be on a visible workspace right now, so we need to make
1474      * sure it gets pushed to the front now. */
1475     output_push_sticky_windows(focused);
1476
1477     ewmh_update_wm_desktop();
1478
1479     cmd_output->needs_tree_render = true;
1480     ysuccess(true);
1481 }
1482
1483 /*
1484  * Implementation of 'move <direction> [<pixels> [px]]'.
1485  *
1486  */
1487 void cmd_move_direction(I3_CMD, const char *direction, long move_px) {
1488     owindow *current;
1489     HANDLE_EMPTY_MATCH;
1490
1491     Con *initially_focused = focused;
1492
1493     TAILQ_FOREACH(current, &owindows, owindows) {
1494         DLOG("moving in direction %s, px %ld\n", direction, move_px);
1495         if (con_is_floating(current->con)) {
1496             DLOG("floating move with %ld pixels\n", move_px);
1497             Rect newrect = current->con->parent->rect;
1498             if (strcmp(direction, "left") == 0) {
1499                 newrect.x -= move_px;
1500             } else if (strcmp(direction, "right") == 0) {
1501                 newrect.x += move_px;
1502             } else if (strcmp(direction, "up") == 0) {
1503                 newrect.y -= move_px;
1504             } else if (strcmp(direction, "down") == 0) {
1505                 newrect.y += move_px;
1506             }
1507             floating_reposition(current->con->parent, newrect);
1508         } else {
1509             tree_move(current->con, (strcmp(direction, "right") == 0 ? D_RIGHT : (strcmp(direction, "left") == 0 ? D_LEFT : (strcmp(direction, "up") == 0 ? D_UP : D_DOWN))));
1510             cmd_output->needs_tree_render = true;
1511         }
1512     }
1513
1514     /* the move command should not disturb focus */
1515     if (focused != initially_focused)
1516         con_activate(initially_focused);
1517
1518     // XXX: default reply for now, make this a better reply
1519     ysuccess(true);
1520 }
1521
1522 /*
1523  * Implementation of 'layout default|stacked|stacking|tabbed|splitv|splith'.
1524  *
1525  */
1526 void cmd_layout(I3_CMD, const char *layout_str) {
1527     HANDLE_EMPTY_MATCH;
1528
1529     layout_t layout;
1530     if (!layout_from_name(layout_str, &layout)) {
1531         ELOG("Unknown layout \"%s\", this is a mismatch between code and parser spec.\n", layout_str);
1532         return;
1533     }
1534
1535     DLOG("changing layout to %s (%d)\n", layout_str, layout);
1536
1537     owindow *current;
1538     TAILQ_FOREACH(current, &owindows, owindows) {
1539         if (con_is_docked(current->con)) {
1540             ELOG("cannot change layout of a docked container, skipping it.\n");
1541             continue;
1542         }
1543
1544         DLOG("matching: %p / %s\n", current->con, current->con->name);
1545         con_set_layout(current->con, layout);
1546     }
1547
1548     cmd_output->needs_tree_render = true;
1549     // XXX: default reply for now, make this a better reply
1550     ysuccess(true);
1551 }
1552
1553 /*
1554  * Implementation of 'layout toggle [all|split]'.
1555  *
1556  */
1557 void cmd_layout_toggle(I3_CMD, const char *toggle_mode) {
1558     owindow *current;
1559
1560     if (toggle_mode == NULL)
1561         toggle_mode = "default";
1562
1563     DLOG("toggling layout (mode = %s)\n", toggle_mode);
1564
1565     /* check if the match is empty, not if the result is empty */
1566     if (match_is_empty(current_match))
1567         con_toggle_layout(focused, toggle_mode);
1568     else {
1569         TAILQ_FOREACH(current, &owindows, owindows) {
1570             DLOG("matching: %p / %s\n", current->con, current->con->name);
1571             con_toggle_layout(current->con, toggle_mode);
1572         }
1573     }
1574
1575     cmd_output->needs_tree_render = true;
1576     // XXX: default reply for now, make this a better reply
1577     ysuccess(true);
1578 }
1579
1580 /*
1581  * Implementation of 'exit'.
1582  *
1583  */
1584 void cmd_exit(I3_CMD) {
1585     LOG("Exiting due to user command.\n");
1586 #ifdef I3_ASAN_ENABLED
1587     __lsan_do_leak_check();
1588 #endif
1589     ipc_shutdown(SHUTDOWN_REASON_EXIT);
1590     unlink(config.ipc_socket_path);
1591     xcb_disconnect(conn);
1592     exit(0);
1593
1594     /* unreached */
1595 }
1596
1597 /*
1598  * Implementation of 'reload'.
1599  *
1600  */
1601 void cmd_reload(I3_CMD) {
1602     LOG("reloading\n");
1603     kill_nagbar(&config_error_nagbar_pid, false);
1604     kill_nagbar(&command_error_nagbar_pid, false);
1605     load_configuration(conn, NULL, true);
1606     x_set_i3_atoms();
1607     /* Send an IPC event just in case the ws names have changed */
1608     ipc_send_workspace_event("reload", NULL, NULL);
1609     /* Send an update event for the barconfig just in case it has changed */
1610     update_barconfig();
1611
1612     // XXX: default reply for now, make this a better reply
1613     ysuccess(true);
1614 }
1615
1616 /*
1617  * Implementation of 'restart'.
1618  *
1619  */
1620 void cmd_restart(I3_CMD) {
1621     LOG("restarting i3\n");
1622     ipc_shutdown(SHUTDOWN_REASON_RESTART);
1623     unlink(config.ipc_socket_path);
1624     /* We need to call this manually since atexit handlers don’t get called
1625      * when exec()ing */
1626     purge_zerobyte_logfile();
1627     i3_restart(false);
1628
1629     // XXX: default reply for now, make this a better reply
1630     ysuccess(true);
1631 }
1632
1633 /*
1634  * Implementation of 'open'.
1635  *
1636  */
1637 void cmd_open(I3_CMD) {
1638     LOG("opening new container\n");
1639     Con *con = tree_open_con(NULL, NULL);
1640     con->layout = L_SPLITH;
1641     con_activate(con);
1642
1643     y(map_open);
1644     ystr("success");
1645     y(bool, true);
1646     ystr("id");
1647     y(integer, (uintptr_t)con);
1648     y(map_close);
1649
1650     cmd_output->needs_tree_render = true;
1651 }
1652
1653 /*
1654  * Implementation of 'focus output <output>'.
1655  *
1656  */
1657 void cmd_focus_output(I3_CMD, const char *name) {
1658     owindow *current;
1659
1660     DLOG("name = %s\n", name);
1661
1662     HANDLE_EMPTY_MATCH;
1663
1664     /* get the output */
1665     Output *current_output = NULL;
1666     Output *output;
1667
1668     TAILQ_FOREACH(current, &owindows, owindows)
1669     current_output = get_output_for_con(current->con);
1670     assert(current_output != NULL);
1671
1672     output = get_output_from_string(current_output, name);
1673
1674     if (!output) {
1675         LOG("No such output found.\n");
1676         ysuccess(false);
1677         return;
1678     }
1679
1680     /* get visible workspace on output */
1681     Con *ws = NULL;
1682     GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1683     if (!ws) {
1684         ysuccess(false);
1685         return;
1686     }
1687
1688     workspace_show(ws);
1689
1690     cmd_output->needs_tree_render = true;
1691     // XXX: default reply for now, make this a better reply
1692     ysuccess(true);
1693 }
1694
1695 /*
1696  * Implementation of 'move [window|container] [to] [absolute] position <px> [px] <px> [px]
1697  *
1698  */
1699 void cmd_move_window_to_position(I3_CMD, long x, long y) {
1700     bool has_error = false;
1701
1702     owindow *current;
1703     HANDLE_EMPTY_MATCH;
1704
1705     TAILQ_FOREACH(current, &owindows, owindows) {
1706         if (!con_is_floating(current->con)) {
1707             ELOG("Cannot change position. The window/container is not floating\n");
1708
1709             if (!has_error) {
1710                 yerror("Cannot change position of a window/container because it is not floating.");
1711                 has_error = true;
1712             }
1713
1714             continue;
1715         }
1716
1717         Rect newrect = current->con->parent->rect;
1718
1719         DLOG("moving to position %ld %ld\n", x, y);
1720         newrect.x = x;
1721         newrect.y = y;
1722
1723         if (!floating_reposition(current->con->parent, newrect)) {
1724             yerror("Cannot move window/container out of bounds.");
1725             has_error = true;
1726         }
1727     }
1728
1729     if (!has_error)
1730         ysuccess(true);
1731 }
1732
1733 /*
1734  * Implementation of 'move [window|container] [to] [absolute] position center
1735  *
1736  */
1737 void cmd_move_window_to_center(I3_CMD, const char *method) {
1738     bool has_error = false;
1739     HANDLE_EMPTY_MATCH;
1740
1741     owindow *current;
1742     TAILQ_FOREACH(current, &owindows, owindows) {
1743         Con *floating_con = con_inside_floating(current->con);
1744         if (floating_con == NULL) {
1745             ELOG("con %p / %s is not floating, cannot move it to the center.\n",
1746                  current->con, current->con->name);
1747
1748             if (!has_error) {
1749                 yerror("Cannot change position of a window/container because it is not floating.");
1750                 has_error = true;
1751             }
1752
1753             continue;
1754         }
1755
1756         if (strcmp(method, "absolute") == 0) {
1757             DLOG("moving to absolute center\n");
1758             floating_center(floating_con, croot->rect);
1759
1760             floating_maybe_reassign_ws(floating_con);
1761             cmd_output->needs_tree_render = true;
1762         }
1763
1764         if (strcmp(method, "position") == 0) {
1765             DLOG("moving to center\n");
1766             floating_center(floating_con, con_get_workspace(floating_con)->rect);
1767
1768             cmd_output->needs_tree_render = true;
1769         }
1770     }
1771
1772     // XXX: default reply for now, make this a better reply
1773     if (!has_error)
1774         ysuccess(true);
1775 }
1776
1777 /*
1778  * Implementation of 'move [window|container] [to] position mouse'
1779  *
1780  */
1781 void cmd_move_window_to_mouse(I3_CMD) {
1782     HANDLE_EMPTY_MATCH;
1783
1784     owindow *current;
1785     TAILQ_FOREACH(current, &owindows, owindows) {
1786         Con *floating_con = con_inside_floating(current->con);
1787         if (floating_con == NULL) {
1788             DLOG("con %p / %s is not floating, cannot move it to the mouse position.\n",
1789                  current->con, current->con->name);
1790             continue;
1791         }
1792
1793         DLOG("moving floating container %p / %s to cursor position\n", floating_con, floating_con->name);
1794         floating_move_to_pointer(floating_con);
1795     }
1796
1797     cmd_output->needs_tree_render = true;
1798     ysuccess(true);
1799 }
1800
1801 /*
1802  * Implementation of 'move scratchpad'.
1803  *
1804  */
1805 void cmd_move_scratchpad(I3_CMD) {
1806     DLOG("should move window to scratchpad\n");
1807     owindow *current;
1808
1809     HANDLE_EMPTY_MATCH;
1810
1811     TAILQ_FOREACH(current, &owindows, owindows) {
1812         DLOG("matching: %p / %s\n", current->con, current->con->name);
1813         scratchpad_move(current->con);
1814     }
1815
1816     cmd_output->needs_tree_render = true;
1817     // XXX: default reply for now, make this a better reply
1818     ysuccess(true);
1819 }
1820
1821 /*
1822  * Implementation of 'scratchpad show'.
1823  *
1824  */
1825 void cmd_scratchpad_show(I3_CMD) {
1826     DLOG("should show scratchpad window\n");
1827     owindow *current;
1828
1829     if (match_is_empty(current_match)) {
1830         scratchpad_show(NULL);
1831     } else {
1832         TAILQ_FOREACH(current, &owindows, owindows) {
1833             DLOG("matching: %p / %s\n", current->con, current->con->name);
1834             scratchpad_show(current->con);
1835         }
1836     }
1837
1838     cmd_output->needs_tree_render = true;
1839     // XXX: default reply for now, make this a better reply
1840     ysuccess(true);
1841 }
1842
1843 /*
1844  * Implementation of 'swap [container] [with] id|con_id|mark <arg>'.
1845  *
1846  */
1847 void cmd_swap(I3_CMD, const char *mode, const char *arg) {
1848     HANDLE_EMPTY_MATCH;
1849
1850     owindow *match = TAILQ_FIRST(&owindows);
1851     if (match == NULL) {
1852         DLOG("No match found for swapping.\n");
1853         return;
1854     }
1855
1856     Con *con;
1857     if (strcmp(mode, "id") == 0) {
1858         long target;
1859         if (!parse_long(arg, &target, 0)) {
1860             yerror("Failed to parse %s into a window id.\n", arg);
1861             return;
1862         }
1863
1864         con = con_by_window_id(target);
1865     } else if (strcmp(mode, "con_id") == 0) {
1866         long target;
1867         if (!parse_long(arg, &target, 0)) {
1868             yerror("Failed to parse %s into a container id.\n", arg);
1869             return;
1870         }
1871
1872         con = con_by_con_id(target);
1873     } else if (strcmp(mode, "mark") == 0) {
1874         con = con_by_mark(arg);
1875     } else {
1876         yerror("Unhandled swap mode \"%s\". This is a bug.\n", mode);
1877         return;
1878     }
1879
1880     if (con == NULL) {
1881         yerror("Could not find container for %s = %s\n", mode, arg);
1882         return;
1883     }
1884
1885     if (match != TAILQ_LAST(&owindows, owindows_head)) {
1886         DLOG("More than one container matched the swap command, only using the first one.");
1887     }
1888
1889     if (match->con == NULL) {
1890         DLOG("Match %p has no container.\n", match);
1891         ysuccess(false);
1892         return;
1893     }
1894
1895     DLOG("Swapping %p with %p.\n", match->con, con);
1896     bool result = con_swap(match->con, con);
1897
1898     cmd_output->needs_tree_render = true;
1899     ysuccess(result);
1900 }
1901
1902 /*
1903  * Implementation of 'title_format <format>'
1904  *
1905  */
1906 void cmd_title_format(I3_CMD, const char *format) {
1907     DLOG("setting title_format to \"%s\"\n", format);
1908     HANDLE_EMPTY_MATCH;
1909
1910     owindow *current;
1911     TAILQ_FOREACH(current, &owindows, owindows) {
1912         DLOG("setting title_format for %p / %s\n", current->con, current->con->name);
1913         FREE(current->con->title_format);
1914
1915         /* If we only display the title without anything else, we can skip the parsing step,
1916          * so we remove the title format altogether. */
1917         if (strcasecmp(format, "%title") != 0) {
1918             current->con->title_format = sstrdup(format);
1919
1920             if (current->con->window != NULL) {
1921                 i3String *formatted_title = con_parse_title_format(current->con);
1922                 ewmh_update_visible_name(current->con->window->id, i3string_as_utf8(formatted_title));
1923                 I3STRING_FREE(formatted_title);
1924             }
1925         } else {
1926             if (current->con->window != NULL) {
1927                 /* We can remove _NET_WM_VISIBLE_NAME since we don't display a custom title. */
1928                 ewmh_update_visible_name(current->con->window->id, NULL);
1929             }
1930         }
1931
1932         if (current->con->window != NULL) {
1933             /* Make sure the window title is redrawn immediately. */
1934             current->con->window->name_x_changed = true;
1935         } else {
1936             /* For windowless containers we also need to force the redrawing. */
1937             FREE(current->con->deco_render_params);
1938         }
1939     }
1940
1941     cmd_output->needs_tree_render = true;
1942     ysuccess(true);
1943 }
1944
1945 /*
1946  * Implementation of 'rename workspace [<name>] to <name>'
1947  *
1948  */
1949 void cmd_rename_workspace(I3_CMD, const char *old_name, const char *new_name) {
1950     if (strncasecmp(new_name, "__", strlen("__")) == 0) {
1951         LOG("Cannot rename workspace to \"%s\": names starting with __ are i3-internal.\n", new_name);
1952         ysuccess(false);
1953         return;
1954     }
1955     if (old_name) {
1956         LOG("Renaming workspace \"%s\" to \"%s\"\n", old_name, new_name);
1957     } else {
1958         LOG("Renaming current workspace to \"%s\"\n", new_name);
1959     }
1960
1961     Con *workspace;
1962     if (old_name) {
1963         workspace = get_existing_workspace_by_name(old_name);
1964     } else {
1965         workspace = con_get_workspace(focused);
1966         old_name = workspace->name;
1967     }
1968
1969     if (!workspace) {
1970         yerror("Old workspace \"%s\" not found", old_name);
1971         return;
1972     }
1973
1974     Con *check_dest = get_existing_workspace_by_name(new_name);
1975
1976     /* If check_dest == workspace, the user might be changing the case of the
1977      * workspace, or it might just be a no-op. */
1978     if (check_dest != NULL && check_dest != workspace) {
1979         yerror("New workspace \"%s\" already exists", new_name);
1980         return;
1981     }
1982
1983     /* Change the name and try to parse it as a number. */
1984     /* old_name might refer to workspace->name, so copy it before free()ing */
1985     char *old_name_copy = sstrdup(old_name);
1986     FREE(workspace->name);
1987     workspace->name = sstrdup(new_name);
1988
1989     workspace->num = ws_name_to_number(new_name);
1990     LOG("num = %d\n", workspace->num);
1991
1992     /* By re-attaching, the sort order will be correct afterwards. */
1993     Con *previously_focused = focused;
1994     Con *parent = workspace->parent;
1995     con_detach(workspace);
1996     con_attach(workspace, parent, false);
1997
1998     /* Move the workspace to the correct output if it has an assignment */
1999     struct Workspace_Assignment *assignment = NULL;
2000     TAILQ_FOREACH(assignment, &ws_assignments, ws_assignments) {
2001         if (assignment->output == NULL)
2002             continue;
2003         if (strcmp(assignment->name, workspace->name) != 0 && (!name_is_digits(assignment->name) || ws_name_to_number(assignment->name) != workspace->num)) {
2004             continue;
2005         }
2006
2007         Output *target_output = get_output_by_name(assignment->output, true);
2008         if (!target_output) {
2009             LOG("Could not get output named \"%s\"\n", assignment->output);
2010             continue;
2011         }
2012         workspace_move_to_output(workspace, target_output);
2013
2014         if (previously_focused)
2015             workspace_show(con_get_workspace(previously_focused));
2016
2017         break;
2018     }
2019
2020     /* Restore the previous focus since con_attach messes with the focus. */
2021     con_activate(previously_focused);
2022
2023     cmd_output->needs_tree_render = true;
2024     ysuccess(true);
2025
2026     ipc_send_workspace_event("rename", workspace, NULL);
2027     ewmh_update_desktop_names();
2028     ewmh_update_desktop_viewport();
2029     ewmh_update_current_desktop();
2030
2031     startup_sequence_rename_workspace(old_name_copy, new_name);
2032     free(old_name_copy);
2033 }
2034
2035 /*
2036  * Implementation of 'bar mode dock|hide|invisible|toggle [<bar_id>]'
2037  *
2038  */
2039 bool cmd_bar_mode(const char *bar_mode, const char *bar_id) {
2040     int mode = M_DOCK;
2041     bool toggle = false;
2042     if (strcmp(bar_mode, "dock") == 0)
2043         mode = M_DOCK;
2044     else if (strcmp(bar_mode, "hide") == 0)
2045         mode = M_HIDE;
2046     else if (strcmp(bar_mode, "invisible") == 0)
2047         mode = M_INVISIBLE;
2048     else if (strcmp(bar_mode, "toggle") == 0)
2049         toggle = true;
2050     else {
2051         ELOG("Unknown bar mode \"%s\", this is a mismatch between code and parser spec.\n", bar_mode);
2052         return false;
2053     }
2054
2055     bool changed_sth = false;
2056     Barconfig *current = NULL;
2057     TAILQ_FOREACH(current, &barconfigs, configs) {
2058         if (bar_id && strcmp(current->id, bar_id) != 0)
2059             continue;
2060
2061         if (toggle)
2062             mode = (current->mode + 1) % 2;
2063
2064         DLOG("Changing bar mode of bar_id '%s' to '%s (%d)'\n", current->id, bar_mode, mode);
2065         current->mode = mode;
2066         changed_sth = true;
2067
2068         if (bar_id)
2069             break;
2070     }
2071
2072     if (bar_id && !changed_sth) {
2073         DLOG("Changing bar mode of bar_id %s failed, bar_id not found.\n", bar_id);
2074         return false;
2075     }
2076
2077     return true;
2078 }
2079
2080 /*
2081  * Implementation of 'bar hidden_state hide|show|toggle [<bar_id>]'
2082  *
2083  */
2084 bool cmd_bar_hidden_state(const char *bar_hidden_state, const char *bar_id) {
2085     int hidden_state = S_SHOW;
2086     bool toggle = false;
2087     if (strcmp(bar_hidden_state, "hide") == 0)
2088         hidden_state = S_HIDE;
2089     else if (strcmp(bar_hidden_state, "show") == 0)
2090         hidden_state = S_SHOW;
2091     else if (strcmp(bar_hidden_state, "toggle") == 0)
2092         toggle = true;
2093     else {
2094         ELOG("Unknown bar state \"%s\", this is a mismatch between code and parser spec.\n", bar_hidden_state);
2095         return false;
2096     }
2097
2098     bool changed_sth = false;
2099     Barconfig *current = NULL;
2100     TAILQ_FOREACH(current, &barconfigs, configs) {
2101         if (bar_id && strcmp(current->id, bar_id) != 0)
2102             continue;
2103
2104         if (toggle)
2105             hidden_state = (current->hidden_state + 1) % 2;
2106
2107         DLOG("Changing bar hidden_state of bar_id '%s' to '%s (%d)'\n", current->id, bar_hidden_state, hidden_state);
2108         current->hidden_state = hidden_state;
2109         changed_sth = true;
2110
2111         if (bar_id)
2112             break;
2113     }
2114
2115     if (bar_id && !changed_sth) {
2116         DLOG("Changing bar hidden_state of bar_id %s failed, bar_id not found.\n", bar_id);
2117         return false;
2118     }
2119
2120     return true;
2121 }
2122
2123 /*
2124  * Implementation of 'bar (hidden_state hide|show|toggle)|(mode dock|hide|invisible|toggle) [<bar_id>]'
2125  *
2126  */
2127 void cmd_bar(I3_CMD, const char *bar_type, const char *bar_value, const char *bar_id) {
2128     bool ret;
2129     if (strcmp(bar_type, "mode") == 0)
2130         ret = cmd_bar_mode(bar_value, bar_id);
2131     else if (strcmp(bar_type, "hidden_state") == 0)
2132         ret = cmd_bar_hidden_state(bar_value, bar_id);
2133     else {
2134         ELOG("Unknown bar option type \"%s\", this is a mismatch between code and parser spec.\n", bar_type);
2135         ret = false;
2136     }
2137
2138     ysuccess(ret);
2139     if (!ret)
2140         return;
2141
2142     update_barconfig();
2143 }
2144
2145 /*
2146  * Implementation of 'shmlog <size>|toggle|on|off'
2147  *
2148  */
2149 void cmd_shmlog(I3_CMD, const char *argument) {
2150     if (!strcmp(argument, "toggle"))
2151         /* Toggle shm log, if size is not 0. If it is 0, set it to default. */
2152         shmlog_size = shmlog_size ? -shmlog_size : default_shmlog_size;
2153     else if (!strcmp(argument, "on"))
2154         shmlog_size = default_shmlog_size;
2155     else if (!strcmp(argument, "off"))
2156         shmlog_size = 0;
2157     else {
2158         /* If shm logging now, restart logging with the new size. */
2159         if (shmlog_size > 0) {
2160             shmlog_size = 0;
2161             LOG("Restarting shm logging...\n");
2162             init_logging();
2163         }
2164         shmlog_size = atoi(argument);
2165         /* Make a weakly attempt at ensuring the argument is valid. */
2166         if (shmlog_size <= 0)
2167             shmlog_size = default_shmlog_size;
2168     }
2169     LOG("%s shm logging\n", shmlog_size > 0 ? "Enabling" : "Disabling");
2170     init_logging();
2171     update_shmlog_atom();
2172     // XXX: default reply for now, make this a better reply
2173     ysuccess(true);
2174 }
2175
2176 /*
2177  * Implementation of 'debuglog toggle|on|off'
2178  *
2179  */
2180 void cmd_debuglog(I3_CMD, const char *argument) {
2181     bool logging = get_debug_logging();
2182     if (!strcmp(argument, "toggle")) {
2183         LOG("%s debug logging\n", logging ? "Disabling" : "Enabling");
2184         set_debug_logging(!logging);
2185     } else if (!strcmp(argument, "on") && !logging) {
2186         LOG("Enabling debug logging\n");
2187         set_debug_logging(true);
2188     } else if (!strcmp(argument, "off") && logging) {
2189         LOG("Disabling debug logging\n");
2190         set_debug_logging(false);
2191     }
2192     // XXX: default reply for now, make this a better reply
2193     ysuccess(true);
2194 }