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 #define CHECK_MOVE_CON_TO_WORKSPACE                                                          \
 273     do {                                                                                     \
 274         HANDLE_EMPTY_MATCH;                                                                  \
 275         if (TAILQ_EMPTY(&owindows)) {                                                        \
 276             yerror("Nothing to move: specified criteria don't match any window");            \
 277             return;                                                                          \
 278         } else {                                                                             \
 279             bool found = false;                                                              \
 280             owindow *current = TAILQ_FIRST(&owindows);                                       \
 281             while (current) {                                                                \
 282                 owindow *next = TAILQ_NEXT(current, owindows);                               \
 283                                                                                              \
 284                 if (current->con->type == CT_WORKSPACE && !con_has_children(current->con)) { \
 285                     TAILQ_REMOVE(&owindows, current, owindows);                              \
 286                 } else {                                                                     \
 287                     found = true;                                                            \
 288                 }                                                                            \
 289                                                                                              \
 290                 current = next;                                                              \
 291             }                                                                                \
 292             if (!found) {                                                                    \
 293                 yerror("Nothing to move: workspace empty");                                  \
 294                 return;                                                                      \
 295             }                                                                                \
 296         }                                                                                    \
 297     } while (0)
 298
 299 /*
 300  * Implementation of 'move [window|container] [to] workspace
 301  * next|prev|next_on_output|prev_on_output|current'.
 302  *
 303  */
 304 void cmd_move_con_to_workspace(I3_CMD, const char *which) {
 305     DLOG("which=%s\n", which);
 306
 307     CHECK_MOVE_CON_TO_WORKSPACE;
 308
 309     /* get the workspace */
 310     Con *ws;
 311     if (strcmp(which, "next") == 0)
 312         ws = workspace_next();
 313     else if (strcmp(which, "prev") == 0)
 314         ws = workspace_prev();
 315     else if (strcmp(which, "next_on_output") == 0)
 316         ws = workspace_next_on_output();
 317     else if (strcmp(which, "prev_on_output") == 0)
 318         ws = workspace_prev_on_output();
 319     else if (strcmp(which, "current") == 0)
 320         ws = con_get_workspace(focused);
 321     else {
 322         yerror("BUG: called with which=%s", which);
 323         return;
 324     }
 325
 326     move_matches_to_workspace(ws);
 327
 328     cmd_output->needs_tree_render = true;
 329     // XXX: default reply for now, make this a better reply
 330     ysuccess(true);
 331 }
 332
 333 /*
 334  * Implementation of 'move [window|container] [to] workspace back_and_forth'.
 335  *
 336  */
 337 void cmd_move_con_to_workspace_back_and_forth(I3_CMD) {
 338     Con *ws = workspace_back_and_forth_get();
 339     if (ws == NULL) {
 340         yerror("No workspace was previously active.");
 341         return;
 342     }
 343
 344     HANDLE_EMPTY_MATCH;
 345
 346     move_matches_to_workspace(ws);
 347
 348     cmd_output->needs_tree_render = true;
 349     // XXX: default reply for now, make this a better reply
 350     ysuccess(true);
 351 }
 352
 353 /*
 354  * Implementation of 'move [--no-auto-back-and-forth] [window|container] [to] workspace <name>'.
 355  *
 356  */
 357 void cmd_move_con_to_workspace_name(I3_CMD, const char *name, const char *no_auto_back_and_forth) {
 358     if (strncasecmp(name, "__", strlen("__")) == 0) {
 359         yerror("You cannot move containers to i3-internal workspaces (\"%s\").", name);
 360         return;
 361     }
 362
 363     CHECK_MOVE_CON_TO_WORKSPACE;
 364
 365     LOG("should move window to workspace %s\n", name);
 366     /* get the workspace */
 367     Con *ws = workspace_get(name, NULL);
 368
 369     if (no_auto_back_and_forth == NULL) {
 370         ws = maybe_auto_back_and_forth_workspace(ws);
 371     }
 372
 373     move_matches_to_workspace(ws);
 374
 375     cmd_output->needs_tree_render = true;
 376     // XXX: default reply for now, make this a better reply
 377     ysuccess(true);
 378 }
 379
 380 /*
 381  * Implementation of 'move [--no-auto-back-and-forth] [window|container] [to] workspace number <name>'.
 382  *
 383  */
 384 void cmd_move_con_to_workspace_number(I3_CMD, const char *which, const char *no_auto_back_and_forth) {
 385     CHECK_MOVE_CON_TO_WORKSPACE;
 386
 387     LOG("should move window to workspace %s\n", which);
 388
 389     long parsed_num = ws_name_to_number(which);
 390     if (parsed_num == -1) {
 391         LOG("Could not parse initial part of \"%s\" as a number.\n", which);
 392         yerror("Could not parse number \"%s\"", which);
 393         return;
 394     }
 395
 396     Con *ws = get_existing_workspace_by_num(parsed_num);
 397     if (!ws) {
 398         ws = workspace_get(which, NULL);
 399     }
 400
 401     if (no_auto_back_and_forth == NULL) {
 402         ws = maybe_auto_back_and_forth_workspace(ws);
 403     }
 404
 405     move_matches_to_workspace(ws);
 406
 407     cmd_output->needs_tree_render = true;
 408     // XXX: default reply for now, make this a better reply
 409     ysuccess(true);
 410 }
 411
 412 /*
 413  * Convert a string direction ("left", "right", etc.) to a direction_t. Assumes
 414  * valid direction string.
 415  */
 416 static direction_t parse_direction(const char *str) {
 417     if (strcmp(str, "left") == 0) {
 418         return D_LEFT;
 419     } else if (strcmp(str, "right") == 0) {
 420         return D_RIGHT;
 421     } else if (strcmp(str, "up") == 0) {
 422         return D_UP;
 423     } else if (strcmp(str, "down") == 0) {
 424         return D_DOWN;
 425     } else {
 426         ELOG("Invalid direction. This is a parser bug.\n");
 427         assert(false);
 428     }
 429 }
 430
 431 static void cmd_resize_floating(I3_CMD, const char *way, const char *direction_str, Con *floating_con, int px) {
 432     Rect old_rect = floating_con->rect;
 433     Con *focused_con = con_descend_focused(floating_con);
 434
 435     direction_t direction;
 436     if (strcmp(direction_str, "height") == 0) {
 437         direction = D_DOWN;
 438     } else if (strcmp(direction_str, "width") == 0) {
 439         direction = D_RIGHT;
 440     } else {
 441         direction = parse_direction(direction_str);
 442     }
 443     orientation_t orientation = orientation_from_direction(direction);
 444
 445     /* ensure that resize will take place even if pixel increment is smaller than
 446      * height increment or width increment.
 447      * fixes #1011 */
 448     const i3Window *window = focused_con->window;
 449     if (window != NULL) {
 450         if (orientation == VERT) {
 451             if (px < 0) {
 452                 px = (-px < window->height_increment) ? -window->height_increment : px;
 453             } else {
 454                 px = (px < window->height_increment) ? window->height_increment : px;
 455             }
 456         } else {
 457             if (px < 0) {
 458                 px = (-px < window->width_increment) ? -window->width_increment : px;
 459             } else {
 460                 px = (px < window->width_increment) ? window->width_increment : px;
 461             }
 462         }
 463     }
 464
 465     if (orientation == VERT) {
 466         floating_con->rect.height += px;
 467     } else {
 468         floating_con->rect.width += px;
 469     }
 470     floating_check_size(floating_con, orientation == VERT);
 471
 472     /* Did we actually resize anything or did the size constraints prevent us?
 473      * If we could not resize, exit now to not move the window. */
 474     if (memcmp(&old_rect, &(floating_con->rect), sizeof(Rect)) == 0) {
 475         return;
 476     }
 477
 478     if (direction == D_UP) {
 479         floating_con->rect.y -= (floating_con->rect.height - old_rect.height);
 480     } else if (direction == D_LEFT) {
 481         floating_con->rect.x -= (floating_con->rect.width - old_rect.width);
 482     }
 483
 484     /* If this is a scratchpad window, don't auto center it from now on. */
 485     if (floating_con->scratchpad_state == SCRATCHPAD_FRESH) {
 486         floating_con->scratchpad_state = SCRATCHPAD_CHANGED;
 487     }
 488 }
 489
 490 static bool cmd_resize_tiling_direction(I3_CMD, Con *current, const char *direction, int px, int ppt) {
 491     Con *second = NULL;
 492     Con *first = current;
 493     direction_t search_direction = parse_direction(direction);
 494
 495     bool res = resize_find_tiling_participants(&first, &second, search_direction, false);
 496     if (!res) {
 497         yerror("No second container found in this direction.");
 498         return false;
 499     }
 500
 501     if (ppt) {
 502         /* For backwards compatibility, 'X px or Y ppt' means that ppt is
 503          * preferred. */
 504         px = 0;
 505     }
 506     return resize_neighboring_cons(first, second, px, ppt);
 507 }
 508
 509 static bool cmd_resize_tiling_width_height(I3_CMD, Con *current, const char *direction, int px, double ppt) {
 510     LOG("width/height resize\n");
 511
 512     /* get the appropriate current container (skip stacked/tabbed cons) */
 513     Con *dummy = NULL;
 514     direction_t search_direction = (strcmp(direction, "width") == 0 ? D_LEFT : D_DOWN);
 515     bool search_result = resize_find_tiling_participants(&current, &dummy, search_direction, true);
 516     if (search_result == false) {
 517         yerror("Failed to find appropriate tiling containers for resize operation");
 518         return false;
 519     }
 520
 521     /* get the default percentage */
 522     int children = con_num_children(current->parent);
 523     LOG("ins. %d children\n", children);
 524     double percentage = 1.0 / children;
 525     LOG("default percentage = %f\n", percentage);
 526
 527     /* Ensure all the other children have a percentage set. */
 528     Con *child;
 529     TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
 530         LOG("child->percent = %f (child %p)\n", child->percent, child);
 531         if (child->percent == 0.0)
 532             child->percent = percentage;
 533     }
 534
 535     double new_current_percent;
 536     double subtract_percent;
 537     if (ppt != 0.0) {
 538         new_current_percent = current->percent + ppt;
 539     } else {
 540         /* Convert px change to change in percentages */
 541         ppt = (double)px / (double)con_rect_size_in_orientation(current->parent);
 542         new_current_percent = current->percent + ppt;
 543     }
 544     subtract_percent = ppt / (children - 1);
 545     if (ppt < 0.0 && new_current_percent < percent_for_1px(current)) {
 546         yerror("Not resizing, container would end with less than 1px");
 547         return false;
 548     }
 549
 550     LOG("new_current_percent = %f\n", new_current_percent);
 551     LOG("subtract_percent = %f\n", subtract_percent);
 552     /* Ensure that the new percentages are positive. */
 553     if (subtract_percent >= 0.0) {
 554         TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
 555             if (child == current) {
 556                 continue;
 557             }
 558             if (child->percent - subtract_percent < percent_for_1px(child)) {
 559                 yerror("Not resizing, already at minimum size (child %p would end up with a size of %.f", child, child->percent - subtract_percent);
 560                 return false;
 561             }
 562         }
 563     }
 564
 565     current->percent = new_current_percent;
 566     LOG("current->percent after = %f\n", current->percent);
 567
 568     TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
 569         if (child == current)
 570             continue;
 571         child->percent -= subtract_percent;
 572         LOG("child->percent after (%p) = %f\n", child, child->percent);
 573     }
 574
 575     return true;
 576 }
 577
 578 /*
 579  * Implementation of 'resize grow|shrink <direction> [<px> px] [or <ppt> ppt]'.
 580  *
 581  */
 582 void cmd_resize(I3_CMD, const char *way, const char *direction, long resize_px, long resize_ppt) {
 583     DLOG("resizing in way %s, direction %s, px %ld or ppt %ld\n", way, direction, resize_px, resize_ppt);
 584     if (strcmp(way, "shrink") == 0) {
 585         resize_px *= -1;
 586         resize_ppt *= -1;
 587     }
 588
 589     HANDLE_EMPTY_MATCH;
 590
 591     owindow *current;
 592     TAILQ_FOREACH(current, &owindows, owindows) {
 593         /* Don't handle dock windows (issue #1201) */
 594         if (current->con->window && current->con->window->dock) {
 595             DLOG("This is a dock window. Not resizing (con = %p)\n)", current->con);
 596             continue;
 597         }
 598
 599         Con *floating_con;
 600         if ((floating_con = con_inside_floating(current->con))) {
 601             cmd_resize_floating(current_match, cmd_output, way, direction, floating_con, resize_px);
 602         } else {
 603             if (strcmp(direction, "width") == 0 ||
 604                 strcmp(direction, "height") == 0) {
 605                 const double ppt = (double)resize_ppt / 100.0;
 606                 if (!cmd_resize_tiling_width_height(current_match, cmd_output,
 607                                                     current->con, direction,
 608                                                     resize_px, ppt)) {
 609                     yerror("Cannot resize.");
 610                     return;
 611                 }
 612             } else {
 613                 if (!cmd_resize_tiling_direction(current_match, cmd_output,
 614                                                  current->con, direction,
 615                                                  resize_px, resize_ppt)) {
 616                     yerror("Cannot resize.");
 617                     return;
 618                 }
 619             }
 620         }
 621     }
 622
 623     cmd_output->needs_tree_render = true;
 624     // XXX: default reply for now, make this a better reply
 625     ysuccess(true);
 626 }
 627
 628 static bool resize_set_tiling(I3_CMD, Con *target, orientation_t resize_orientation, bool is_ppt, long target_size) {
 629     direction_t search_direction;
 630     char *mode;
 631     if (resize_orientation == HORIZ) {
 632         search_direction = D_LEFT;
 633         mode = "width";
 634     } else {
 635         search_direction = D_DOWN;
 636         mode = "height";
 637     }
 638
 639     /* Get the appropriate current container (skip stacked/tabbed cons) */
 640     Con *dummy;
 641     resize_find_tiling_participants(&target, &dummy, search_direction, true);
 642
 643     /* Calculate new size for the target container */
 644     double ppt = 0.0;
 645     int px = 0;
 646     if (is_ppt) {
 647         ppt = (double)target_size / 100.0 - target->percent;
 648     } else {
 649         px = target_size - (resize_orientation == HORIZ ? target->rect.width : target->rect.height);
 650     }
 651
 652     /* Perform resizing and report failure if not possible */
 653     return cmd_resize_tiling_width_height(current_match, cmd_output,
 654                                           target, mode, px, ppt);
 655 }
 656
 657 /*
 658  * Implementation of 'resize set <width> [px | ppt] <height> [px | ppt]'.
 659  *
 660  */
 661 void cmd_resize_set(I3_CMD, long cwidth, const char *mode_width, long cheight, const char *mode_height) {
 662     DLOG("resizing to %ld %s x %ld %s\n", cwidth, mode_width, cheight, mode_height);
 663     if (cwidth < 0 || cheight < 0) {
 664         yerror("Dimensions cannot be negative.");
 665         return;
 666     }
 667
 668     HANDLE_EMPTY_MATCH;
 669
 670     owindow *current;
 671     bool success = true;
 672     TAILQ_FOREACH(current, &owindows, owindows) {
 673         Con *floating_con;
 674         if ((floating_con = con_inside_floating(current->con))) {
 675             Con *output = con_get_output(floating_con);
 676             if (cwidth == 0) {
 677                 cwidth = floating_con->rect.width;
 678             } else if (mode_width && strcmp(mode_width, "ppt") == 0) {
 679                 cwidth = output->rect.width * ((double)cwidth / 100.0);
 680             }
 681             if (cheight == 0) {
 682                 cheight = floating_con->rect.height;
 683             } else if (mode_height && strcmp(mode_height, "ppt") == 0) {
 684                 cheight = output->rect.height * ((double)cheight / 100.0);
 685             }
 686             floating_resize(floating_con, cwidth, cheight);
 687         } else {
 688             if (current->con->window && current->con->window->dock) {
 689                 DLOG("This is a dock window. Not resizing (con = %p)\n)", current->con);
 690                 continue;
 691             }
 692
 693             if (cwidth > 0) {
 694                 bool is_ppt = mode_width && strcmp(mode_width, "ppt") == 0;
 695                 success &= resize_set_tiling(current_match, cmd_output, current->con,
 696                                              HORIZ, is_ppt, cwidth);
 697             }
 698             if (cheight > 0) {
 699                 bool is_ppt = mode_height && strcmp(mode_height, "ppt") == 0;
 700                 success &= resize_set_tiling(current_match, cmd_output, current->con,
 701                                              VERT, is_ppt, cheight);
 702             }
 703         }
 704     }
 705
 706     cmd_output->needs_tree_render = true;
 707     ysuccess(success);
 708 }
 709
 710 static int border_width_from_style(border_style_t border_style, long border_width, Con *con) {
 711     if (border_style == BS_NONE) {
 712         return 0;
 713     }
 714     if (border_width >= 0) {
 715         return logical_px(border_width);
 716     }
 717
 718     const bool is_floating = con_inside_floating(con) != NULL;
 719     /* Load the configured defaults. */
 720     if (is_floating && border_style == config.default_floating_border) {
 721         return config.default_floating_border_width;
 722     } else if (!is_floating && border_style == config.default_border) {
 723         return config.default_border_width;
 724     } else {
 725         /* Use some hardcoded values. */
 726         return logical_px(border_style == BS_NORMAL ? 2 : 1);
 727     }
 728 }
 729
 730 /*
 731  * Implementation of 'border normal|pixel [<n>]', 'border none|1pixel|toggle'.
 732  *
 733  */
 734 void cmd_border(I3_CMD, const char *border_style_str, long border_width) {
 735     DLOG("border style should be changed to %s with border width %ld\n", border_style_str, border_width);
 736     owindow *current;
 737
 738     HANDLE_EMPTY_MATCH;
 739
 740     TAILQ_FOREACH(current, &owindows, owindows) {
 741         DLOG("matching: %p / %s\n", current->con, current->con->name);
 742
 743         border_style_t border_style;
 744         if (strcmp(border_style_str, "toggle") == 0) {
 745             border_style = (current->con->border_style + 1) % 3;
 746         } else 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, "none") == 0) {
 751             border_style = BS_NONE;
 752         } else {
 753             yerror("BUG: called with border_style=%s", border_style_str);
 754             return;
 755         }
 756
 757         const int con_border_width = border_width_from_style(border_style, border_width, current->con);
 758         con_set_border_style(current->con, border_style, con_border_width);
 759     }
 760
 761     cmd_output->needs_tree_render = true;
 762     ysuccess(true);
 763 }
 764
 765 /*
 766  * Implementation of 'nop <comment>'.
 767  *
 768  */
 769 void cmd_nop(I3_CMD, const char *comment) {
 770     LOG("-------------------------------------------------\n");
 771     LOG("  NOP: %s\n", comment);
 772     LOG("-------------------------------------------------\n");
 773     ysuccess(true);
 774 }
 775
 776 /*
 777  * Implementation of 'append_layout <path>'.
 778  *
 779  */
 780 void cmd_append_layout(I3_CMD, const char *cpath) {
 781     LOG("Appending layout \"%s\"\n", cpath);
 782
 783     /* Make sure we allow paths like '~/.i3/layout.json' */
 784     char *path = resolve_tilde(cpath);
 785
 786     char *buf = NULL;
 787     ssize_t len;
 788     if ((len = slurp(path, &buf)) < 0) {
 789         yerror("Could not slurp \"%s\".", path);
 790         /* slurp already logged an error. */
 791         goto out;
 792     }
 793
 794     if (!json_validate(buf, len)) {
 795         ELOG("Could not parse \"%s\" as JSON, not loading.\n", path);
 796         yerror("Could not parse \"%s\" as JSON.", path);
 797         goto out;
 798     }
 799
 800     json_content_t content = json_determine_content(buf, len);
 801     LOG("JSON content = %d\n", content);
 802     if (content == JSON_CONTENT_UNKNOWN) {
 803         ELOG("Could not determine the contents of \"%s\", not loading.\n", path);
 804         yerror("Could not determine the contents of \"%s\".", path);
 805         goto out;
 806     }
 807
 808     Con *parent = focused;
 809     if (content == JSON_CONTENT_WORKSPACE) {
 810         parent = output_get_content(con_get_output(parent));
 811     } else {
 812         /* We need to append the layout to a split container, since a leaf
 813          * container must not have any children (by definition).
 814          * Note that we explicitly check for workspaces, since they are okay for
 815          * this purpose, but con_accepts_window() returns false for workspaces. */
 816         while (parent->type != CT_WORKSPACE && !con_accepts_window(parent))
 817             parent = parent->parent;
 818     }
 819     DLOG("Appending to parent=%p instead of focused=%p\n", parent, focused);
 820     char *errormsg = NULL;
 821     tree_append_json(parent, buf, len, &errormsg);
 822     if (errormsg != NULL) {
 823         yerror(errormsg);
 824         free(errormsg);
 825         /* Note that we continue executing since tree_append_json() has
 826          * side-effects — user-provided layouts can be partly valid, partly
 827          * invalid, leading to half of the placeholder containers being
 828          * created. */
 829     } else {
 830         ysuccess(true);
 831     }
 832
 833     // XXX: This is a bit of a kludge. Theoretically, render_con(parent,
 834     // false); should be enough, but when sending 'workspace 4; append_layout
 835     // /tmp/foo.json', the needs_tree_render == true of the workspace command
 836     // is not executed yet and will be batched with append_layout’s
 837     // needs_tree_render after the parser finished. We should check if that is
 838     // necessary at all.
 839     render_con(croot);
 840
 841     restore_open_placeholder_windows(parent);
 842
 843     if (content == JSON_CONTENT_WORKSPACE)
 844         ipc_send_workspace_event("restored", parent, NULL);
 845
 846     cmd_output->needs_tree_render = true;
 847 out:
 848     free(path);
 849     free(buf);
 850 }
 851
 852 /*
 853  * Implementation of 'workspace next|prev|next_on_output|prev_on_output'.
 854  *
 855  */
 856 void cmd_workspace(I3_CMD, const char *which) {
 857     Con *ws;
 858
 859     DLOG("which=%s\n", which);
 860
 861     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 862         yerror("Cannot switch workspace while in global fullscreen");
 863         return;
 864     }
 865
 866     if (strcmp(which, "next") == 0)
 867         ws = workspace_next();
 868     else if (strcmp(which, "prev") == 0)
 869         ws = workspace_prev();
 870     else if (strcmp(which, "next_on_output") == 0)
 871         ws = workspace_next_on_output();
 872     else if (strcmp(which, "prev_on_output") == 0)
 873         ws = workspace_prev_on_output();
 874     else {
 875         yerror("BUG: called with which=%s", which);
 876         return;
 877     }
 878
 879     workspace_show(ws);
 880
 881     cmd_output->needs_tree_render = true;
 882     // XXX: default reply for now, make this a better reply
 883     ysuccess(true);
 884 }
 885
 886 /*
 887  * Implementation of 'workspace [--no-auto-back-and-forth] number <name>'
 888  *
 889  */
 890 void cmd_workspace_number(I3_CMD, const char *which, const char *_no_auto_back_and_forth) {
 891     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 892
 893     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 894         yerror("Cannot switch workspace while in global fullscreen");
 895         return;
 896     }
 897
 898     long parsed_num = ws_name_to_number(which);
 899     if (parsed_num == -1) {
 900         yerror("Could not parse initial part of \"%s\" as a number.", which);
 901         return;
 902     }
 903
 904     Con *workspace = get_existing_workspace_by_num(parsed_num);
 905     if (!workspace) {
 906         LOG("There is no workspace with number %ld, creating a new one.\n", parsed_num);
 907         ysuccess(true);
 908         workspace_show_by_name(which);
 909         cmd_output->needs_tree_render = true;
 910         return;
 911     }
 912     if (!no_auto_back_and_forth && maybe_back_and_forth(cmd_output, workspace->name)) {
 913         ysuccess(true);
 914         return;
 915     }
 916     workspace_show(workspace);
 917
 918     cmd_output->needs_tree_render = true;
 919     // XXX: default reply for now, make this a better reply
 920     ysuccess(true);
 921 }
 922
 923 /*
 924  * Implementation of 'workspace back_and_forth'.
 925  *
 926  */
 927 void cmd_workspace_back_and_forth(I3_CMD) {
 928     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 929         yerror("Cannot switch workspace while in global fullscreen");
 930         return;
 931     }
 932
 933     workspace_back_and_forth();
 934
 935     cmd_output->needs_tree_render = true;
 936     // XXX: default reply for now, make this a better reply
 937     ysuccess(true);
 938 }
 939
 940 /*
 941  * Implementation of 'workspace [--no-auto-back-and-forth] <name>'
 942  *
 943  */
 944 void cmd_workspace_name(I3_CMD, const char *name, const char *_no_auto_back_and_forth) {
 945     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 946
 947     if (strncasecmp(name, "__", strlen("__")) == 0) {
 948         yerror("You cannot switch to the i3-internal workspaces (\"%s\").", name);
 949         return;
 950     }
 951
 952     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 953         yerror("Cannot switch workspace while in global fullscreen");
 954         return;
 955     }
 956
 957     DLOG("should switch to workspace %s\n", name);
 958     if (!no_auto_back_and_forth && maybe_back_and_forth(cmd_output, name)) {
 959         ysuccess(true);
 960         return;
 961     }
 962     workspace_show_by_name(name);
 963
 964     cmd_output->needs_tree_render = true;
 965     // XXX: default reply for now, make this a better reply
 966     ysuccess(true);
 967 }
 968
 969 /*
 970  * Implementation of 'mark [--add|--replace] [--toggle] <mark>'
 971  *
 972  */
 973 void cmd_mark(I3_CMD, const char *mark, const char *mode, const char *toggle) {
 974     HANDLE_EMPTY_MATCH;
 975
 976     owindow *current = TAILQ_FIRST(&owindows);
 977     if (current == NULL) {
 978         yerror("Given criteria don't match a window");
 979         return;
 980     }
 981
 982     /* Marks must be unique, i.e., no two windows must have the same mark. */
 983     if (current != TAILQ_LAST(&owindows, owindows_head)) {
 984         yerror("A mark must not be put onto more than one window");
 985         return;
 986     }
 987
 988     DLOG("matching: %p / %s\n", current->con, current->con->name);
 989
 990     mark_mode_t mark_mode = (mode == NULL || strcmp(mode, "--replace") == 0) ? MM_REPLACE : MM_ADD;
 991     if (toggle != NULL) {
 992         con_mark_toggle(current->con, mark, mark_mode);
 993     } else {
 994         con_mark(current->con, mark, mark_mode);
 995     }
 996
 997     cmd_output->needs_tree_render = true;
 998     // XXX: default reply for now, make this a better reply
 999     ysuccess(true);
1000 }
1001
1002 /*
1003  * Implementation of 'unmark [mark]'
1004  *
1005  */
1006 void cmd_unmark(I3_CMD, const char *mark) {
1007     if (match_is_empty(current_match)) {
1008         con_unmark(NULL, mark);
1009     } else {
1010         owindow *current;
1011         TAILQ_FOREACH(current, &owindows, owindows) {
1012             con_unmark(current->con, mark);
1013         }
1014     }
1015
1016     cmd_output->needs_tree_render = true;
1017     // XXX: default reply for now, make this a better reply
1018     ysuccess(true);
1019 }
1020
1021 /*
1022  * Implementation of 'mode <string>'.
1023  *
1024  */
1025 void cmd_mode(I3_CMD, const char *mode) {
1026     DLOG("mode=%s\n", mode);
1027     switch_mode(mode);
1028
1029     // XXX: default reply for now, make this a better reply
1030     ysuccess(true);
1031 }
1032
1033 /*
1034  * Implementation of 'move [window|container] [to] output <str>'.
1035  *
1036  */
1037 void cmd_move_con_to_output(I3_CMD, const char *name) {
1038     DLOG("Should move window to output \"%s\".\n", name);
1039     HANDLE_EMPTY_MATCH;
1040
1041     owindow *current;
1042     bool had_error = false;
1043     TAILQ_FOREACH(current, &owindows, owindows) {
1044         DLOG("matching: %p / %s\n", current->con, current->con->name);
1045
1046         had_error |= !con_move_to_output_name(current->con, name, true);
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         if (con_is_internal(ws)) {
1117             continue;
1118         }
1119
1120         Output *current_output = get_output_for_con(ws);
1121         if (current_output == NULL) {
1122             yerror("Cannot get current output. This is a bug in i3.");
1123             return;
1124         }
1125
1126         Output *target_output = get_output_from_string(current_output, name);
1127         if (!target_output) {
1128             yerror("Could not get output from string \"%s\"", name);
1129             return;
1130         }
1131
1132         bool success = workspace_move_to_output(ws, target_output);
1133         if (!success) {
1134             yerror("Failed to move workspace to output.");
1135             return;
1136         }
1137     }
1138
1139     cmd_output->needs_tree_render = true;
1140     ysuccess(true);
1141 }
1142
1143 /*
1144  * Implementation of 'split v|h|t|vertical|horizontal|toggle'.
1145  *
1146  */
1147 void cmd_split(I3_CMD, const char *direction) {
1148     HANDLE_EMPTY_MATCH;
1149
1150     owindow *current;
1151     LOG("splitting in direction %c\n", direction[0]);
1152     TAILQ_FOREACH(current, &owindows, owindows) {
1153         if (con_is_docked(current->con)) {
1154             ELOG("Cannot split a docked container, skipping.\n");
1155             continue;
1156         }
1157
1158         DLOG("matching: %p / %s\n", current->con, current->con->name);
1159         if (direction[0] == 't') {
1160             layout_t current_layout;
1161             if (current->con->type == CT_WORKSPACE) {
1162                 current_layout = current->con->layout;
1163             } else {
1164                 current_layout = current->con->parent->layout;
1165             }
1166             /* toggling split orientation */
1167             if (current_layout == L_SPLITH) {
1168                 tree_split(current->con, VERT);
1169             } else {
1170                 tree_split(current->con, HORIZ);
1171             }
1172         } else {
1173             tree_split(current->con, (direction[0] == 'v' ? VERT : HORIZ));
1174         }
1175     }
1176
1177     cmd_output->needs_tree_render = true;
1178     // XXX: default reply for now, make this a better reply
1179     ysuccess(true);
1180 }
1181
1182 /*
1183  * Implementation of 'kill [window|client]'.
1184  *
1185  */
1186 void cmd_kill(I3_CMD, const char *kill_mode_str) {
1187     if (kill_mode_str == NULL)
1188         kill_mode_str = "window";
1189
1190     DLOG("kill_mode=%s\n", kill_mode_str);
1191
1192     int kill_mode;
1193     if (strcmp(kill_mode_str, "window") == 0)
1194         kill_mode = KILL_WINDOW;
1195     else if (strcmp(kill_mode_str, "client") == 0)
1196         kill_mode = KILL_CLIENT;
1197     else {
1198         yerror("BUG: called with kill_mode=%s", kill_mode_str);
1199         return;
1200     }
1201
1202     HANDLE_EMPTY_MATCH;
1203
1204     owindow *current;
1205     TAILQ_FOREACH(current, &owindows, owindows) {
1206         con_close(current->con, kill_mode);
1207     }
1208
1209     cmd_output->needs_tree_render = true;
1210     // XXX: default reply for now, make this a better reply
1211     ysuccess(true);
1212 }
1213
1214 /*
1215  * Implementation of 'exec [--no-startup-id] <command>'.
1216  *
1217  */
1218 void cmd_exec(I3_CMD, const char *nosn, const char *command) {
1219     bool no_startup_id = (nosn != NULL);
1220
1221     DLOG("should execute %s, no_startup_id = %d\n", command, no_startup_id);
1222     start_application(command, no_startup_id);
1223
1224     ysuccess(true);
1225 }
1226
1227 /*
1228  * Implementation of 'focus left|right|up|down'.
1229  *
1230  */
1231 void cmd_focus_direction(I3_CMD, const char *direction) {
1232     switch (parse_direction(direction)) {
1233         case D_LEFT:
1234             tree_next('p', HORIZ);
1235             break;
1236         case D_RIGHT:
1237             tree_next('n', HORIZ);
1238             break;
1239         case D_UP:
1240             tree_next('p', VERT);
1241             break;
1242         case D_DOWN:
1243             tree_next('n', VERT);
1244             break;
1245     }
1246
1247     cmd_output->needs_tree_render = true;
1248     // XXX: default reply for now, make this a better reply
1249     ysuccess(true);
1250 }
1251
1252 /*
1253  * Focus a container and disable any other fullscreen container not permitting the focus.
1254  *
1255  */
1256 static void cmd_focus_force_focus(Con *con) {
1257     /* Disable fullscreen container in workspace with container to be focused. */
1258     Con *ws = con_get_workspace(con);
1259     Con *fullscreen_on_ws = con_get_fullscreen_covering_ws(ws);
1260     if (fullscreen_on_ws && fullscreen_on_ws != con && !con_has_parent(con, fullscreen_on_ws)) {
1261         con_disable_fullscreen(fullscreen_on_ws);
1262     }
1263     con_activate(con);
1264 }
1265
1266 /*
1267  * Implementation of 'focus tiling|floating|mode_toggle'.
1268  *
1269  */
1270 void cmd_focus_window_mode(I3_CMD, const char *window_mode) {
1271     DLOG("window_mode = %s\n", window_mode);
1272
1273     bool to_floating = false;
1274     if (strcmp(window_mode, "mode_toggle") == 0) {
1275         to_floating = !con_inside_floating(focused);
1276     } else if (strcmp(window_mode, "floating") == 0) {
1277         to_floating = true;
1278     } else if (strcmp(window_mode, "tiling") == 0) {
1279         to_floating = false;
1280     }
1281
1282     Con *ws = con_get_workspace(focused);
1283     Con *current;
1284     bool success = false;
1285     TAILQ_FOREACH(current, &(ws->focus_head), focused) {
1286         if ((to_floating && current->type != CT_FLOATING_CON) ||
1287             (!to_floating && current->type == CT_FLOATING_CON))
1288             continue;
1289
1290         cmd_focus_force_focus(con_descend_focused(current));
1291         success = true;
1292         break;
1293     }
1294
1295     if (success) {
1296         cmd_output->needs_tree_render = true;
1297         ysuccess(true);
1298     } else {
1299         yerror("Failed to find a %s container in workspace.", to_floating ? "floating" : "tiling");
1300     }
1301 }
1302
1303 /*
1304  * Implementation of 'focus parent|child'.
1305  *
1306  */
1307 void cmd_focus_level(I3_CMD, const char *level) {
1308     DLOG("level = %s\n", level);
1309     bool success = false;
1310
1311     /* Focusing the parent can only be allowed if the newly
1312      * focused container won't escape the fullscreen container. */
1313     if (strcmp(level, "parent") == 0) {
1314         if (focused && focused->parent) {
1315             if (con_fullscreen_permits_focusing(focused->parent))
1316                 success = level_up();
1317             else
1318                 ELOG("'focus parent': Currently in fullscreen, not going up\n");
1319         }
1320     }
1321
1322     /* Focusing a child should always be allowed. */
1323     else
1324         success = level_down();
1325
1326     cmd_output->needs_tree_render = success;
1327     // XXX: default reply for now, make this a better reply
1328     ysuccess(success);
1329 }
1330
1331 /*
1332  * Implementation of 'focus'.
1333  *
1334  */
1335 void cmd_focus(I3_CMD) {
1336     DLOG("current_match = %p\n", current_match);
1337
1338     if (match_is_empty(current_match)) {
1339         ELOG("You have to specify which window/container should be focused.\n");
1340         ELOG("Example: [class=\"urxvt\" title=\"irssi\"] focus\n");
1341
1342         yerror("You have to specify which window/container should be focused");
1343
1344         return;
1345     }
1346
1347     Con *__i3_scratch = workspace_get("__i3_scratch", NULL);
1348     int count = 0;
1349     owindow *current;
1350     TAILQ_FOREACH(current, &owindows, owindows) {
1351         Con *ws = con_get_workspace(current->con);
1352         /* If no workspace could be found, this was a dock window.
1353          * Just skip it, you cannot focus dock windows. */
1354         if (!ws)
1355             continue;
1356
1357         /* In case this is a scratchpad window, call scratchpad_show(). */
1358         if (ws == __i3_scratch) {
1359             scratchpad_show(current->con);
1360             count++;
1361             /* While for the normal focus case we can change focus multiple
1362              * times and only a single window ends up focused, we could show
1363              * multiple scratchpad windows. So, rather break here. */
1364             break;
1365         }
1366
1367         /* If the container is not on the current workspace,
1368          * workspace_show() will switch to a different workspace and (if
1369          * enabled) trigger a mouse pointer warp to the currently focused
1370          * container (!) on the target workspace.
1371          *
1372          * Therefore, before calling workspace_show(), we make sure that
1373          * 'current' will be focused on the workspace. However, we cannot
1374          * just con_focus(current) because then the pointer will not be
1375          * warped at all (the code thinks we are already there).
1376          *
1377          * So we focus 'current' to make it the currently focused window of
1378          * the target workspace, then revert focus. */
1379         Con *currently_focused = focused;
1380         cmd_focus_force_focus(current->con);
1381         con_activate(currently_focused);
1382
1383         /* Now switch to the workspace, then focus */
1384         workspace_show(ws);
1385         LOG("focusing %p / %s\n", current->con, current->con->name);
1386         con_activate(current->con);
1387         count++;
1388     }
1389
1390     if (count > 1)
1391         LOG("WARNING: Your criteria for the focus command matches %d containers, "
1392             "while only exactly one container can be focused at a time.\n",
1393             count);
1394
1395     cmd_output->needs_tree_render = true;
1396     ysuccess(count > 0);
1397 }
1398
1399 /*
1400  * Implementation of 'fullscreen enable|toggle [global]' and
1401  *                   'fullscreen disable'
1402  *
1403  */
1404 void cmd_fullscreen(I3_CMD, const char *action, const char *fullscreen_mode) {
1405     fullscreen_mode_t mode = strcmp(fullscreen_mode, "global") == 0 ? CF_GLOBAL : CF_OUTPUT;
1406     DLOG("%s fullscreen, mode = %s\n", action, fullscreen_mode);
1407     owindow *current;
1408
1409     HANDLE_EMPTY_MATCH;
1410
1411     TAILQ_FOREACH(current, &owindows, owindows) {
1412         DLOG("matching: %p / %s\n", current->con, current->con->name);
1413         if (strcmp(action, "toggle") == 0) {
1414             con_toggle_fullscreen(current->con, mode);
1415         } else if (strcmp(action, "enable") == 0) {
1416             con_enable_fullscreen(current->con, mode);
1417         } else if (strcmp(action, "disable") == 0) {
1418             con_disable_fullscreen(current->con);
1419         }
1420     }
1421
1422     cmd_output->needs_tree_render = true;
1423     // XXX: default reply for now, make this a better reply
1424     ysuccess(true);
1425 }
1426
1427 /*
1428  * Implementation of 'sticky enable|disable|toggle'.
1429  *
1430  */
1431 void cmd_sticky(I3_CMD, const char *action) {
1432     DLOG("%s sticky on window\n", action);
1433     HANDLE_EMPTY_MATCH;
1434
1435     owindow *current;
1436     TAILQ_FOREACH(current, &owindows, owindows) {
1437         if (current->con->window == NULL) {
1438             ELOG("only containers holding a window can be made sticky, skipping con = %p\n", current->con);
1439             continue;
1440         }
1441         DLOG("setting sticky for container = %p / %s\n", current->con, current->con->name);
1442
1443         bool sticky = false;
1444         if (strcmp(action, "enable") == 0)
1445             sticky = true;
1446         else if (strcmp(action, "disable") == 0)
1447             sticky = false;
1448         else if (strcmp(action, "toggle") == 0)
1449             sticky = !current->con->sticky;
1450
1451         current->con->sticky = sticky;
1452         ewmh_update_sticky(current->con->window->id, sticky);
1453     }
1454
1455     /* A window we made sticky might not be on a visible workspace right now, so we need to make
1456      * sure it gets pushed to the front now. */
1457     output_push_sticky_windows(focused);
1458
1459     ewmh_update_wm_desktop();
1460
1461     cmd_output->needs_tree_render = true;
1462     ysuccess(true);
1463 }
1464
1465 /*
1466  * Implementation of 'move <direction> [<pixels> [px]]'.
1467  *
1468  */
1469 void cmd_move_direction(I3_CMD, const char *direction_str, long move_px) {
1470     owindow *current;
1471     HANDLE_EMPTY_MATCH;
1472
1473     Con *initially_focused = focused;
1474     direction_t direction = parse_direction(direction_str);
1475
1476     TAILQ_FOREACH(current, &owindows, owindows) {
1477         DLOG("moving in direction %s, px %ld\n", direction_str, move_px);
1478         if (con_is_floating(current->con)) {
1479             DLOG("floating move with %ld pixels\n", move_px);
1480             Rect newrect = current->con->parent->rect;
1481
1482             switch (direction) {
1483                 case D_LEFT:
1484                     newrect.x -= move_px;
1485                     break;
1486                 case D_RIGHT:
1487                     newrect.x += move_px;
1488                     break;
1489                 case D_UP:
1490                     newrect.y -= move_px;
1491                     break;
1492                 case D_DOWN:
1493                     newrect.y += move_px;
1494                     break;
1495             }
1496
1497             floating_reposition(current->con->parent, newrect);
1498         } else {
1499             tree_move(current->con, direction);
1500             cmd_output->needs_tree_render = true;
1501         }
1502     }
1503
1504     /* the move command should not disturb focus */
1505     if (focused != initially_focused)
1506         con_activate(initially_focused);
1507
1508     // XXX: default reply for now, make this a better reply
1509     ysuccess(true);
1510 }
1511
1512 /*
1513  * Implementation of 'layout default|stacked|stacking|tabbed|splitv|splith'.
1514  *
1515  */
1516 void cmd_layout(I3_CMD, const char *layout_str) {
1517     HANDLE_EMPTY_MATCH;
1518
1519     layout_t layout;
1520     if (!layout_from_name(layout_str, &layout)) {
1521         yerror("Unknown layout \"%s\", this is a mismatch between code and parser spec.", layout_str);
1522         return;
1523     }
1524
1525     DLOG("changing layout to %s (%d)\n", layout_str, layout);
1526
1527     owindow *current;
1528     TAILQ_FOREACH(current, &owindows, owindows) {
1529         if (con_is_docked(current->con)) {
1530             ELOG("cannot change layout of a docked container, skipping it.\n");
1531             continue;
1532         }
1533
1534         DLOG("matching: %p / %s\n", current->con, current->con->name);
1535         con_set_layout(current->con, layout);
1536     }
1537
1538     cmd_output->needs_tree_render = true;
1539     // XXX: default reply for now, make this a better reply
1540     ysuccess(true);
1541 }
1542
1543 /*
1544  * Implementation of 'layout toggle [all|split]'.
1545  *
1546  */
1547 void cmd_layout_toggle(I3_CMD, const char *toggle_mode) {
1548     owindow *current;
1549
1550     if (toggle_mode == NULL)
1551         toggle_mode = "default";
1552
1553     DLOG("toggling layout (mode = %s)\n", toggle_mode);
1554
1555     /* check if the match is empty, not if the result is empty */
1556     if (match_is_empty(current_match))
1557         con_toggle_layout(focused, toggle_mode);
1558     else {
1559         TAILQ_FOREACH(current, &owindows, owindows) {
1560             DLOG("matching: %p / %s\n", current->con, current->con->name);
1561             con_toggle_layout(current->con, toggle_mode);
1562         }
1563     }
1564
1565     cmd_output->needs_tree_render = true;
1566     // XXX: default reply for now, make this a better reply
1567     ysuccess(true);
1568 }
1569
1570 /*
1571  * Implementation of 'exit'.
1572  *
1573  */
1574 void cmd_exit(I3_CMD) {
1575     LOG("Exiting due to user command.\n");
1576 #ifdef I3_ASAN_ENABLED
1577     __lsan_do_leak_check();
1578 #endif
1579     ipc_shutdown(SHUTDOWN_REASON_EXIT);
1580     unlink(config.ipc_socket_path);
1581     xcb_disconnect(conn);
1582     exit(0);
1583
1584     /* unreached */
1585 }
1586
1587 /*
1588  * Implementation of 'reload'.
1589  *
1590  */
1591 void cmd_reload(I3_CMD) {
1592     LOG("reloading\n");
1593     kill_nagbar(&config_error_nagbar_pid, false);
1594     kill_nagbar(&command_error_nagbar_pid, false);
1595     load_configuration(conn, NULL, true);
1596     x_set_i3_atoms();
1597     /* Send an IPC event just in case the ws names have changed */
1598     ipc_send_workspace_event("reload", NULL, NULL);
1599     /* Send an update event for the barconfig just in case it has changed */
1600     update_barconfig();
1601
1602     // XXX: default reply for now, make this a better reply
1603     ysuccess(true);
1604 }
1605
1606 /*
1607  * Implementation of 'restart'.
1608  *
1609  */
1610 void cmd_restart(I3_CMD) {
1611     LOG("restarting i3\n");
1612     ipc_shutdown(SHUTDOWN_REASON_RESTART);
1613     unlink(config.ipc_socket_path);
1614     /* We need to call this manually since atexit handlers don’t get called
1615      * when exec()ing */
1616     purge_zerobyte_logfile();
1617     i3_restart(false);
1618
1619     // XXX: default reply for now, make this a better reply
1620     ysuccess(true);
1621 }
1622
1623 /*
1624  * Implementation of 'open'.
1625  *
1626  */
1627 void cmd_open(I3_CMD) {
1628     LOG("opening new container\n");
1629     Con *con = tree_open_con(NULL, NULL);
1630     con->layout = L_SPLITH;
1631     con_activate(con);
1632
1633     y(map_open);
1634     ystr("success");
1635     y(bool, true);
1636     ystr("id");
1637     y(integer, (uintptr_t)con);
1638     y(map_close);
1639
1640     cmd_output->needs_tree_render = true;
1641 }
1642
1643 /*
1644  * Implementation of 'focus output <output>'.
1645  *
1646  */
1647 void cmd_focus_output(I3_CMD, const char *name) {
1648     owindow *current;
1649
1650     DLOG("name = %s\n", name);
1651
1652     HANDLE_EMPTY_MATCH;
1653
1654     /* get the output */
1655     Output *current_output = NULL;
1656     Output *output;
1657
1658     TAILQ_FOREACH(current, &owindows, owindows)
1659     current_output = get_output_for_con(current->con);
1660     assert(current_output != NULL);
1661
1662     output = get_output_from_string(current_output, name);
1663
1664     if (!output) {
1665         yerror("No such output found.");
1666         return;
1667     }
1668
1669     /* get visible workspace on output */
1670     Con *ws = NULL;
1671     GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1672     if (!ws) {
1673         yerror("BUG: No workspace found on output.");
1674         return;
1675     }
1676
1677     workspace_show(ws);
1678
1679     cmd_output->needs_tree_render = true;
1680     // XXX: default reply for now, make this a better reply
1681     ysuccess(true);
1682 }
1683
1684 /*
1685  * Implementation of 'move [window|container] [to] [absolute] position <px> [px] <px> [px]
1686  *
1687  */
1688 void cmd_move_window_to_position(I3_CMD, long x, long y) {
1689     bool has_error = false;
1690
1691     owindow *current;
1692     HANDLE_EMPTY_MATCH;
1693
1694     TAILQ_FOREACH(current, &owindows, owindows) {
1695         if (!con_is_floating(current->con)) {
1696             ELOG("Cannot change position. The window/container is not floating\n");
1697
1698             if (!has_error) {
1699                 yerror("Cannot change position of a window/container because it is not floating.");
1700                 has_error = true;
1701             }
1702
1703             continue;
1704         }
1705
1706         Rect newrect = current->con->parent->rect;
1707
1708         DLOG("moving to position %ld %ld\n", x, y);
1709         newrect.x = x;
1710         newrect.y = y;
1711
1712         if (!floating_reposition(current->con->parent, newrect)) {
1713             yerror("Cannot move window/container out of bounds.");
1714             has_error = true;
1715         }
1716     }
1717
1718     if (!has_error)
1719         ysuccess(true);
1720 }
1721
1722 /*
1723  * Implementation of 'move [window|container] [to] [absolute] position center
1724  *
1725  */
1726 void cmd_move_window_to_center(I3_CMD, const char *method) {
1727     bool has_error = false;
1728     HANDLE_EMPTY_MATCH;
1729
1730     owindow *current;
1731     TAILQ_FOREACH(current, &owindows, owindows) {
1732         Con *floating_con = con_inside_floating(current->con);
1733         if (floating_con == NULL) {
1734             ELOG("con %p / %s is not floating, cannot move it to the center.\n",
1735                  current->con, current->con->name);
1736
1737             if (!has_error) {
1738                 yerror("Cannot change position of a window/container because it is not floating.");
1739                 has_error = true;
1740             }
1741
1742             continue;
1743         }
1744
1745         if (strcmp(method, "absolute") == 0) {
1746             DLOG("moving to absolute center\n");
1747             floating_center(floating_con, croot->rect);
1748
1749             floating_maybe_reassign_ws(floating_con);
1750             cmd_output->needs_tree_render = true;
1751         }
1752
1753         if (strcmp(method, "position") == 0) {
1754             DLOG("moving to center\n");
1755             floating_center(floating_con, con_get_workspace(floating_con)->rect);
1756
1757             cmd_output->needs_tree_render = true;
1758         }
1759     }
1760
1761     // XXX: default reply for now, make this a better reply
1762     if (!has_error)
1763         ysuccess(true);
1764 }
1765
1766 /*
1767  * Implementation of 'move [window|container] [to] position mouse'
1768  *
1769  */
1770 void cmd_move_window_to_mouse(I3_CMD) {
1771     HANDLE_EMPTY_MATCH;
1772
1773     owindow *current;
1774     TAILQ_FOREACH(current, &owindows, owindows) {
1775         Con *floating_con = con_inside_floating(current->con);
1776         if (floating_con == NULL) {
1777             DLOG("con %p / %s is not floating, cannot move it to the mouse position.\n",
1778                  current->con, current->con->name);
1779             continue;
1780         }
1781
1782         DLOG("moving floating container %p / %s to cursor position\n", floating_con, floating_con->name);
1783         floating_move_to_pointer(floating_con);
1784     }
1785
1786     cmd_output->needs_tree_render = true;
1787     ysuccess(true);
1788 }
1789
1790 /*
1791  * Implementation of 'move scratchpad'.
1792  *
1793  */
1794 void cmd_move_scratchpad(I3_CMD) {
1795     DLOG("should move window to scratchpad\n");
1796     owindow *current;
1797
1798     HANDLE_EMPTY_MATCH;
1799
1800     TAILQ_FOREACH(current, &owindows, owindows) {
1801         DLOG("matching: %p / %s\n", current->con, current->con->name);
1802         scratchpad_move(current->con);
1803     }
1804
1805     cmd_output->needs_tree_render = true;
1806     // XXX: default reply for now, make this a better reply
1807     ysuccess(true);
1808 }
1809
1810 /*
1811  * Implementation of 'scratchpad show'.
1812  *
1813  */
1814 void cmd_scratchpad_show(I3_CMD) {
1815     DLOG("should show scratchpad window\n");
1816     owindow *current;
1817     bool result = false;
1818
1819     if (match_is_empty(current_match)) {
1820         result = scratchpad_show(NULL);
1821     } else {
1822         TAILQ_FOREACH(current, &owindows, owindows) {
1823             DLOG("matching: %p / %s\n", current->con, current->con->name);
1824             result |= scratchpad_show(current->con);
1825         }
1826     }
1827
1828     cmd_output->needs_tree_render = true;
1829
1830     ysuccess(result);
1831 }
1832
1833 /*
1834  * Implementation of 'swap [container] [with] id|con_id|mark <arg>'.
1835  *
1836  */
1837 void cmd_swap(I3_CMD, const char *mode, const char *arg) {
1838     HANDLE_EMPTY_MATCH;
1839
1840     owindow *match = TAILQ_FIRST(&owindows);
1841     if (match == NULL) {
1842         yerror("No match found for swapping.");
1843         return;
1844     }
1845     if (match->con == NULL) {
1846         yerror("Match %p has no container.", match);
1847         return;
1848     }
1849
1850     Con *con;
1851     if (strcmp(mode, "id") == 0) {
1852         long target;
1853         if (!parse_long(arg, &target, 0)) {
1854             yerror("Failed to parse %s into a window id.", arg);
1855             return;
1856         }
1857
1858         con = con_by_window_id(target);
1859     } else if (strcmp(mode, "con_id") == 0) {
1860         long target;
1861         if (!parse_long(arg, &target, 0)) {
1862             yerror("Failed to parse %s into a container id.", arg);
1863             return;
1864         }
1865
1866         con = con_by_con_id(target);
1867     } else if (strcmp(mode, "mark") == 0) {
1868         con = con_by_mark(arg);
1869     } else {
1870         yerror("Unhandled swap mode \"%s\". This is a bug.", mode);
1871         return;
1872     }
1873
1874     if (con == NULL) {
1875         yerror("Could not find container for %s = %s", mode, arg);
1876         return;
1877     }
1878
1879     if (match != TAILQ_LAST(&owindows, owindows_head)) {
1880         LOG("More than one container matched the swap command, only using the first one.");
1881     }
1882
1883     DLOG("Swapping %p with %p.\n", match->con, con);
1884     bool result = con_swap(match->con, con);
1885
1886     cmd_output->needs_tree_render = true;
1887     // XXX: default reply for now, make this a better reply
1888     ysuccess(result);
1889 }
1890
1891 /*
1892  * Implementation of 'title_format <format>'
1893  *
1894  */
1895 void cmd_title_format(I3_CMD, const char *format) {
1896     DLOG("setting title_format to \"%s\"\n", format);
1897     HANDLE_EMPTY_MATCH;
1898
1899     owindow *current;
1900     TAILQ_FOREACH(current, &owindows, owindows) {
1901         DLOG("setting title_format for %p / %s\n", current->con, current->con->name);
1902         FREE(current->con->title_format);
1903
1904         /* If we only display the title without anything else, we can skip the parsing step,
1905          * so we remove the title format altogether. */
1906         if (strcasecmp(format, "%title") != 0) {
1907             current->con->title_format = sstrdup(format);
1908
1909             if (current->con->window != NULL) {
1910                 i3String *formatted_title = con_parse_title_format(current->con);
1911                 ewmh_update_visible_name(current->con->window->id, i3string_as_utf8(formatted_title));
1912                 I3STRING_FREE(formatted_title);
1913             }
1914         } else {
1915             if (current->con->window != NULL) {
1916                 /* We can remove _NET_WM_VISIBLE_NAME since we don't display a custom title. */
1917                 ewmh_update_visible_name(current->con->window->id, NULL);
1918             }
1919         }
1920
1921         if (current->con->window != NULL) {
1922             /* Make sure the window title is redrawn immediately. */
1923             current->con->window->name_x_changed = true;
1924         } else {
1925             /* For windowless containers we also need to force the redrawing. */
1926             FREE(current->con->deco_render_params);
1927         }
1928     }
1929
1930     cmd_output->needs_tree_render = true;
1931     ysuccess(true);
1932 }
1933
1934 /*
1935  * Implementation of 'rename workspace [<name>] to <name>'
1936  *
1937  */
1938 void cmd_rename_workspace(I3_CMD, const char *old_name, const char *new_name) {
1939     if (strncasecmp(new_name, "__", strlen("__")) == 0) {
1940         yerror("Cannot rename workspace to \"%s\": names starting with __ are i3-internal.", new_name);
1941         return;
1942     }
1943     if (old_name) {
1944         LOG("Renaming workspace \"%s\" to \"%s\"\n", old_name, new_name);
1945     } else {
1946         LOG("Renaming current workspace to \"%s\"\n", new_name);
1947     }
1948
1949     Con *workspace;
1950     if (old_name) {
1951         workspace = get_existing_workspace_by_name(old_name);
1952     } else {
1953         workspace = con_get_workspace(focused);
1954         old_name = workspace->name;
1955     }
1956
1957     if (!workspace) {
1958         yerror("Old workspace \"%s\" not found", old_name);
1959         return;
1960     }
1961
1962     Con *check_dest = get_existing_workspace_by_name(new_name);
1963
1964     /* If check_dest == workspace, the user might be changing the case of the
1965      * workspace, or it might just be a no-op. */
1966     if (check_dest != NULL && check_dest != workspace) {
1967         yerror("New workspace \"%s\" already exists", new_name);
1968         return;
1969     }
1970
1971     /* Change the name and try to parse it as a number. */
1972     /* old_name might refer to workspace->name, so copy it before free()ing */
1973     char *old_name_copy = sstrdup(old_name);
1974     FREE(workspace->name);
1975     workspace->name = sstrdup(new_name);
1976
1977     workspace->num = ws_name_to_number(new_name);
1978     LOG("num = %d\n", workspace->num);
1979
1980     /* By re-attaching, the sort order will be correct afterwards. */
1981     Con *previously_focused = focused;
1982     Con *previously_focused_content = focused->type == CT_WORKSPACE ? focused->parent : NULL;
1983     Con *parent = workspace->parent;
1984     con_detach(workspace);
1985     con_attach(workspace, parent, false);
1986     ipc_send_workspace_event("rename", workspace, NULL);
1987
1988     /* Move the workspace to the correct output if it has an assignment */
1989     struct Workspace_Assignment *assignment = NULL;
1990     TAILQ_FOREACH(assignment, &ws_assignments, ws_assignments) {
1991         if (assignment->output == NULL)
1992             continue;
1993         if (strcmp(assignment->name, workspace->name) != 0 && (!name_is_digits(assignment->name) || ws_name_to_number(assignment->name) != workspace->num)) {
1994             continue;
1995         }
1996
1997         Output *target_output = get_output_by_name(assignment->output, true);
1998         if (!target_output) {
1999             LOG("Could not get output named \"%s\"\n", assignment->output);
2000             continue;
2001         }
2002         if (!output_triggers_assignment(target_output, assignment)) {
2003             continue;
2004         }
2005         workspace_move_to_output(workspace, target_output);
2006
2007         break;
2008     }
2009
2010     bool can_restore_focus = previously_focused != NULL;
2011     /* NB: If previously_focused is a workspace we can't work directly with it
2012      * since it might have been cleaned up by workspace_show() already,
2013      * depending on the focus order/number of other workspaces on the output.
2014      * Instead, we loop through the available workspaces and only focus
2015      * previously_focused if we still find it. */
2016     if (previously_focused_content) {
2017         Con *workspace = NULL;
2018         GREP_FIRST(workspace, previously_focused_content, child == previously_focused);
2019         can_restore_focus &= (workspace != NULL);
2020     }
2021
2022     if (can_restore_focus) {
2023         /* Restore the previous focus since con_attach messes with the focus. */
2024         workspace_show(con_get_workspace(previously_focused));
2025         con_focus(previously_focused);
2026     }
2027
2028     cmd_output->needs_tree_render = true;
2029     ysuccess(true);
2030
2031     ewmh_update_desktop_names();
2032     ewmh_update_desktop_viewport();
2033     ewmh_update_current_desktop();
2034
2035     startup_sequence_rename_workspace(old_name_copy, new_name);
2036     free(old_name_copy);
2037 }
2038
2039 /*
2040  * Implementation of 'bar mode dock|hide|invisible|toggle [<bar_id>]'
2041  *
2042  */
2043 static bool cmd_bar_mode(const char *bar_mode, const char *bar_id) {
2044     int mode = M_DOCK;
2045     bool toggle = false;
2046     if (strcmp(bar_mode, "dock") == 0)
2047         mode = M_DOCK;
2048     else if (strcmp(bar_mode, "hide") == 0)
2049         mode = M_HIDE;
2050     else if (strcmp(bar_mode, "invisible") == 0)
2051         mode = M_INVISIBLE;
2052     else if (strcmp(bar_mode, "toggle") == 0)
2053         toggle = true;
2054     else {
2055         ELOG("Unknown bar mode \"%s\", this is a mismatch between code and parser spec.\n", bar_mode);
2056         return false;
2057     }
2058
2059     bool changed_sth = false;
2060     Barconfig *current = NULL;
2061     TAILQ_FOREACH(current, &barconfigs, configs) {
2062         if (bar_id && strcmp(current->id, bar_id) != 0)
2063             continue;
2064
2065         if (toggle)
2066             mode = (current->mode + 1) % 2;
2067
2068         DLOG("Changing bar mode of bar_id '%s' to '%s (%d)'\n", current->id, bar_mode, mode);
2069         current->mode = mode;
2070         changed_sth = true;
2071
2072         if (bar_id)
2073             break;
2074     }
2075
2076     if (bar_id && !changed_sth) {
2077         DLOG("Changing bar mode of bar_id %s failed, bar_id not found.\n", bar_id);
2078         return false;
2079     }
2080
2081     return true;
2082 }
2083
2084 /*
2085  * Implementation of 'bar hidden_state hide|show|toggle [<bar_id>]'
2086  *
2087  */
2088 static bool cmd_bar_hidden_state(const char *bar_hidden_state, const char *bar_id) {
2089     int hidden_state = S_SHOW;
2090     bool toggle = false;
2091     if (strcmp(bar_hidden_state, "hide") == 0)
2092         hidden_state = S_HIDE;
2093     else if (strcmp(bar_hidden_state, "show") == 0)
2094         hidden_state = S_SHOW;
2095     else if (strcmp(bar_hidden_state, "toggle") == 0)
2096         toggle = true;
2097     else {
2098         ELOG("Unknown bar state \"%s\", this is a mismatch between code and parser spec.\n", bar_hidden_state);
2099         return false;
2100     }
2101
2102     bool changed_sth = false;
2103     Barconfig *current = NULL;
2104     TAILQ_FOREACH(current, &barconfigs, configs) {
2105         if (bar_id && strcmp(current->id, bar_id) != 0)
2106             continue;
2107
2108         if (toggle)
2109             hidden_state = (current->hidden_state + 1) % 2;
2110
2111         DLOG("Changing bar hidden_state of bar_id '%s' to '%s (%d)'\n", current->id, bar_hidden_state, hidden_state);
2112         current->hidden_state = hidden_state;
2113         changed_sth = true;
2114
2115         if (bar_id)
2116             break;
2117     }
2118
2119     if (bar_id && !changed_sth) {
2120         DLOG("Changing bar hidden_state of bar_id %s failed, bar_id not found.\n", bar_id);
2121         return false;
2122     }
2123
2124     return true;
2125 }
2126
2127 /*
2128  * Implementation of 'bar (hidden_state hide|show|toggle)|(mode dock|hide|invisible|toggle) [<bar_id>]'
2129  *
2130  */
2131 void cmd_bar(I3_CMD, const char *bar_type, const char *bar_value, const char *bar_id) {
2132     bool ret;
2133     if (strcmp(bar_type, "mode") == 0)
2134         ret = cmd_bar_mode(bar_value, bar_id);
2135     else if (strcmp(bar_type, "hidden_state") == 0)
2136         ret = cmd_bar_hidden_state(bar_value, bar_id);
2137     else {
2138         ELOG("Unknown bar option type \"%s\", this is a mismatch between code and parser spec.\n", bar_type);
2139         ret = false;
2140     }
2141
2142     ysuccess(ret);
2143     if (!ret)
2144         return;
2145
2146     update_barconfig();
2147 }
2148
2149 /*
2150  * Implementation of 'shmlog <size>|toggle|on|off'
2151  *
2152  */
2153 void cmd_shmlog(I3_CMD, const char *argument) {
2154     if (!strcmp(argument, "toggle"))
2155         /* Toggle shm log, if size is not 0. If it is 0, set it to default. */
2156         shmlog_size = shmlog_size ? -shmlog_size : default_shmlog_size;
2157     else if (!strcmp(argument, "on"))
2158         shmlog_size = default_shmlog_size;
2159     else if (!strcmp(argument, "off"))
2160         shmlog_size = 0;
2161     else {
2162         long new_size = 0;
2163         if (!parse_long(argument, &new_size, 0)) {
2164             yerror("Failed to parse %s into a shmlog size.", argument);
2165             return;
2166         }
2167         /* If shm logging now, restart logging with the new size. */
2168         if (shmlog_size > 0) {
2169             shmlog_size = 0;
2170             LOG("Restarting shm logging...\n");
2171             init_logging();
2172         }
2173         shmlog_size = (int)new_size;
2174     }
2175     LOG("%s shm logging\n", shmlog_size > 0 ? "Enabling" : "Disabling");
2176     init_logging();
2177     update_shmlog_atom();
2178     ysuccess(true);
2179 }
2180
2181 /*
2182  * Implementation of 'debuglog toggle|on|off'
2183  *
2184  */
2185 void cmd_debuglog(I3_CMD, const char *argument) {
2186     bool logging = get_debug_logging();
2187     if (!strcmp(argument, "toggle")) {
2188         LOG("%s debug logging\n", logging ? "Disabling" : "Enabling");
2189         set_debug_logging(!logging);
2190     } else if (!strcmp(argument, "on") && !logging) {
2191         LOG("Enabling debug logging\n");
2192         set_debug_logging(true);
2193     } else if (!strcmp(argument, "off") && logging) {
2194         LOG("Disabling debug logging\n");
2195         set_debug_logging(false);
2196     }
2197     // XXX: default reply for now, make this a better reply
2198     ysuccess(true);
2199 }