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

   1 #undef I3__FILE__
   2 #define I3__FILE__ "commands.c"
   3 /*
   4  * vim:ts=4:sw=4:expandtab
   5  *
   6  * i3 - an improved dynamic tiling window manager
   7  * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
   8  *
   9  * commands.c: all command functions (see commands_parser.c)
  10  *
  11  */
  12 #include <float.h>
  13 #include <stdarg.h>
  14
  15 #ifdef I3_ASAN_ENABLED
  16 #include <sanitizer/lsan_interface.h>
  17 #endif
  18
  19 #include "all.h"
  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 occured during parsing of the criteria, we want to exit instead
  50  * of relying on fallback behavior. See #2091. */
  51 #define HANDLE_INVALID_MATCH                                   \
  52     do {                                                       \
  53         if (current_match->error != NULL) {                    \
  54             yerror("Invalid match: %s", current_match->error); \
  55             return;                                            \
  56         }                                                      \
  57     } while (0)
  58
  59 /** When the command did not include match criteria (!), we use the currently
  60  * focused container. Do not confuse this case with a command which included
  61  * criteria but which did not match any windows. This macro has to be called in
  62  * every command.
  63  */
  64 #define HANDLE_EMPTY_MATCH                              \
  65     do {                                                \
  66         HANDLE_INVALID_MATCH;                           \
  67                                                         \
  68         if (match_is_empty(current_match)) {            \
  69             while (!TAILQ_EMPTY(&owindows)) {           \
  70                 owindow *ow = TAILQ_FIRST(&owindows);   \
  71                 TAILQ_REMOVE(&owindows, ow, owindows);  \
  72                 free(ow);                               \
  73             }                                           \
  74             owindow *ow = smalloc(sizeof(owindow));     \
  75             ow->con = focused;                          \
  76             TAILQ_INIT(&owindows);                      \
  77             TAILQ_INSERT_TAIL(&owindows, ow, owindows); \
  78         }                                               \
  79     } while (0)
  80
  81 /*
  82  * Returns true if a is definitely greater than b (using the given epsilon)
  83  *
  84  */
  85 static bool definitelyGreaterThan(float a, float b, float epsilon) {
  86     return (a - b) > ((fabs(a) < fabs(b) ? fabs(b) : fabs(a)) * epsilon);
  87 }
  88
  89 /*
  90  * Returns the output containing the given container.
  91  */
  92 static Output *get_output_of_con(Con *con) {
  93     Con *output_con = con_get_output(con);
  94     Output *output = get_output_by_name(output_con->name);
  95     assert(output != NULL);
  96
  97     return output;
  98 }
  99
 100 /*
 101  * Checks whether we switched to a new workspace and returns false in that case,
 102  * signaling that further workspace switching should be done by the calling function
 103  * If not, calls workspace_back_and_forth() if workspace_auto_back_and_forth is set
 104  * and return true, signaling that no further workspace switching should occur in the calling function.
 105  *
 106  */
 107 static bool maybe_back_and_forth(struct CommandResultIR *cmd_output, const char *name) {
 108     Con *ws = con_get_workspace(focused);
 109
 110     /* If we switched to a different workspace, do nothing */
 111     if (strcmp(ws->name, name) != 0)
 112         return false;
 113
 114     DLOG("This workspace is already focused.\n");
 115     if (config.workspace_auto_back_and_forth) {
 116         workspace_back_and_forth();
 117         cmd_output->needs_tree_render = true;
 118     }
 119     return true;
 120 }
 121
 122 /*
 123  * Return the passed workspace unless it is the current one and auto back and
 124  * forth is enabled, in which case the back_and_forth workspace is returned.
 125  */
 126 static Con *maybe_auto_back_and_forth_workspace(Con *workspace) {
 127     Con *current, *baf;
 128
 129     if (!config.workspace_auto_back_and_forth)
 130         return workspace;
 131
 132     current = con_get_workspace(focused);
 133
 134     if (current == workspace) {
 135         baf = workspace_back_and_forth_get();
 136         if (baf != NULL) {
 137             DLOG("Substituting workspace with back_and_forth, as it is focused.\n");
 138             return baf;
 139         }
 140     }
 141
 142     return workspace;
 143 }
 144
 145 /*******************************************************************************
 146  * Criteria functions.
 147  ******************************************************************************/
 148
 149 /*
 150  * Helper data structure for an operation window (window on which the operation
 151  * will be performed). Used to build the TAILQ owindows.
 152  *
 153  */
 154 typedef struct owindow {
 155     Con *con;
 156     TAILQ_ENTRY(owindow) owindows;
 157 } owindow;
 158
 159 typedef TAILQ_HEAD(owindows_head, owindow) owindows_head;
 160
 161 static owindows_head owindows;
 162
 163 /*
 164  * Initializes the specified 'Match' data structure and the initial state of
 165  * commands.c for matching target windows of a command.
 166  *
 167  */
 168 void cmd_criteria_init(I3_CMD) {
 169     Con *con;
 170     owindow *ow;
 171
 172     DLOG("Initializing criteria, current_match = %p\n", current_match);
 173     match_free(current_match);
 174     match_init(current_match);
 175     while (!TAILQ_EMPTY(&owindows)) {
 176         ow = TAILQ_FIRST(&owindows);
 177         TAILQ_REMOVE(&owindows, ow, owindows);
 178         free(ow);
 179     }
 180     TAILQ_INIT(&owindows);
 181     /* copy all_cons */
 182     TAILQ_FOREACH(con, &all_cons, all_cons) {
 183         ow = smalloc(sizeof(owindow));
 184         ow->con = con;
 185         TAILQ_INSERT_TAIL(&owindows, ow, owindows);
 186     }
 187 }
 188
 189 /*
 190  * A match specification just finished (the closing square bracket was found),
 191  * so we filter the list of owindows.
 192  *
 193  */
 194 void cmd_criteria_match_windows(I3_CMD) {
 195     owindow *next, *current;
 196
 197     DLOG("match specification finished, matching...\n");
 198     /* copy the old list head to iterate through it and start with a fresh
 199      * list which will contain only matching windows */
 200     struct owindows_head old = owindows;
 201     TAILQ_INIT(&owindows);
 202     for (next = TAILQ_FIRST(&old); next != TAILQ_END(&old);) {
 203         /* make a copy of the next pointer and advance the pointer to the
 204          * next element as we are going to invalidate the element’s
 205          * next/prev pointers by calling TAILQ_INSERT_TAIL later */
 206         current = next;
 207         next = TAILQ_NEXT(next, owindows);
 208
 209         DLOG("checking if con %p / %s matches\n", current->con, current->con->name);
 210
 211         /* We use this flag to prevent matching on window-less containers if
 212          * only window-specific criteria were specified. */
 213         bool accept_match = false;
 214
 215         if (current_match->con_id != NULL) {
 216             accept_match = true;
 217
 218             if (current_match->con_id == current->con) {
 219                 DLOG("con_id matched.\n");
 220             } else {
 221                 DLOG("con_id does not match.\n");
 222                 FREE(current);
 223                 continue;
 224             }
 225         }
 226
 227         if (current_match->mark != NULL && !TAILQ_EMPTY(&(current->con->marks_head))) {
 228             accept_match = true;
 229             bool matched_by_mark = false;
 230
 231             mark_t *mark;
 232             TAILQ_FOREACH(mark, &(current->con->marks_head), marks) {
 233                 if (!regex_matches(current_match->mark, mark->name))
 234                     continue;
 235
 236                 DLOG("match by mark\n");
 237                 matched_by_mark = true;
 238                 break;
 239             }
 240
 241             if (!matched_by_mark) {
 242                 DLOG("mark does not match.\n");
 243                 FREE(current);
 244                 continue;
 245             }
 246         }
 247
 248         if (current->con->window != NULL) {
 249             if (match_matches_window(current_match, current->con->window)) {
 250                 DLOG("matches window!\n");
 251                 accept_match = true;
 252             } else {
 253                 DLOG("doesn't match\n");
 254                 FREE(current);
 255                 continue;
 256             }
 257         }
 258
 259         if (accept_match) {
 260             TAILQ_INSERT_TAIL(&owindows, current, owindows);
 261         } else {
 262             FREE(current);
 263             continue;
 264         }
 265     }
 266
 267     TAILQ_FOREACH(current, &owindows, owindows) {
 268         DLOG("matching: %p / %s\n", current->con, current->con->name);
 269     }
 270 }
 271
 272 /*
 273  * Interprets a ctype=cvalue pair and adds it to the current match
 274  * specification.
 275  *
 276  */
 277 void cmd_criteria_add(I3_CMD, const char *ctype, const char *cvalue) {
 278     match_parse_property(current_match, ctype, cvalue);
 279 }
 280
 281 /*
 282  * Implementation of 'move [window|container] [to] workspace
 283  * next|prev|next_on_output|prev_on_output|current'.
 284  *
 285  */
 286 void cmd_move_con_to_workspace(I3_CMD, const char *which) {
 287     owindow *current;
 288
 289     DLOG("which=%s\n", which);
 290
 291     /* We have nothing to move:
 292      *  when criteria was specified but didn't match any window or
 293      *  when criteria wasn't specified and we don't have any window focused. */
 294     if ((!match_is_empty(current_match) && TAILQ_EMPTY(&owindows)) ||
 295         (match_is_empty(current_match) && focused->type == CT_WORKSPACE &&
 296          !con_has_children(focused))) {
 297         ysuccess(false);
 298         return;
 299     }
 300
 301     HANDLE_EMPTY_MATCH;
 302
 303     /* get the workspace */
 304     Con *ws;
 305     if (strcmp(which, "next") == 0)
 306         ws = workspace_next();
 307     else if (strcmp(which, "prev") == 0)
 308         ws = workspace_prev();
 309     else if (strcmp(which, "next_on_output") == 0)
 310         ws = workspace_next_on_output();
 311     else if (strcmp(which, "prev_on_output") == 0)
 312         ws = workspace_prev_on_output();
 313     else if (strcmp(which, "current") == 0)
 314         ws = con_get_workspace(focused);
 315     else {
 316         ELOG("BUG: called with which=%s\n", which);
 317         ysuccess(false);
 318         return;
 319     }
 320
 321     TAILQ_FOREACH(current, &owindows, owindows) {
 322         DLOG("matching: %p / %s\n", current->con, current->con->name);
 323         con_move_to_workspace(current->con, ws, true, false, false);
 324     }
 325
 326     cmd_output->needs_tree_render = true;
 327     // XXX: default reply for now, make this a better reply
 328     ysuccess(true);
 329 }
 330
 331 /**
 332  * Implementation of 'move [window|container] [to] workspace back_and_forth'.
 333  *
 334  */
 335 void cmd_move_con_to_workspace_back_and_forth(I3_CMD) {
 336     owindow *current;
 337     Con *ws;
 338
 339     ws = workspace_back_and_forth_get();
 340
 341     if (ws == NULL) {
 342         yerror("No workspace was previously active.");
 343         return;
 344     }
 345
 346     HANDLE_EMPTY_MATCH;
 347
 348     TAILQ_FOREACH(current, &owindows, owindows) {
 349         DLOG("matching: %p / %s\n", current->con, current->con->name);
 350         con_move_to_workspace(current->con, ws, true, false, false);
 351     }
 352
 353     cmd_output->needs_tree_render = true;
 354     // XXX: default reply for now, make this a better reply
 355     ysuccess(true);
 356 }
 357
 358 /*
 359  * Implementation of 'move [--no-auto-back-and-forth] [window|container] [to] workspace <name>'.
 360  *
 361  */
 362 void cmd_move_con_to_workspace_name(I3_CMD, const char *name, const char *_no_auto_back_and_forth) {
 363     if (strncasecmp(name, "__", strlen("__")) == 0) {
 364         LOG("You cannot move containers to i3-internal workspaces (\"%s\").\n", name);
 365         ysuccess(false);
 366         return;
 367     }
 368
 369     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 370     owindow *current;
 371
 372     /* We have nothing to move:
 373      *  when criteria was specified but didn't match any window or
 374      *  when criteria wasn't specified and we don't have any window focused. */
 375     if (!match_is_empty(current_match) && TAILQ_EMPTY(&owindows)) {
 376         ELOG("No windows match your criteria, cannot move.\n");
 377         ysuccess(false);
 378         return;
 379     } else if (match_is_empty(current_match) && focused->type == CT_WORKSPACE &&
 380                !con_has_children(focused)) {
 381         ysuccess(false);
 382         return;
 383     }
 384
 385     LOG("should move window to workspace %s\n", name);
 386     /* get the workspace */
 387     Con *ws = workspace_get(name, NULL);
 388
 389     if (!no_auto_back_and_forth)
 390         ws = maybe_auto_back_and_forth_workspace(ws);
 391
 392     HANDLE_EMPTY_MATCH;
 393
 394     TAILQ_FOREACH(current, &owindows, owindows) {
 395         DLOG("matching: %p / %s\n", current->con, current->con->name);
 396         con_move_to_workspace(current->con, ws, true, false, false);
 397     }
 398
 399     cmd_output->needs_tree_render = true;
 400     // XXX: default reply for now, make this a better reply
 401     ysuccess(true);
 402 }
 403
 404 /*
 405  * Implementation of 'move [--no-auto-back-and-forth] [window|container] [to] workspace number <name>'.
 406  *
 407  */
 408 void cmd_move_con_to_workspace_number(I3_CMD, const char *which, const char *_no_auto_back_and_forth) {
 409     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 410     owindow *current;
 411
 412     /* We have nothing to move:
 413      *  when criteria was specified but didn't match any window or
 414      *  when criteria wasn't specified and we don't have any window focused. */
 415     if ((!match_is_empty(current_match) && TAILQ_EMPTY(&owindows)) ||
 416         (match_is_empty(current_match) && focused->type == CT_WORKSPACE &&
 417          !con_has_children(focused))) {
 418         ysuccess(false);
 419         return;
 420     }
 421
 422     LOG("should move window to workspace %s\n", which);
 423     /* get the workspace */
 424     Con *output, *workspace = NULL;
 425
 426     long parsed_num = ws_name_to_number(which);
 427
 428     if (parsed_num == -1) {
 429         LOG("Could not parse initial part of \"%s\" as a number.\n", which);
 430         yerror("Could not parse number \"%s\"", which);
 431         return;
 432     }
 433
 434     TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
 435     GREP_FIRST(workspace, output_get_content(output),
 436                child->num == parsed_num);
 437
 438     if (!workspace) {
 439         workspace = workspace_get(which, NULL);
 440     }
 441
 442     if (!no_auto_back_and_forth)
 443         workspace = maybe_auto_back_and_forth_workspace(workspace);
 444
 445     HANDLE_EMPTY_MATCH;
 446
 447     TAILQ_FOREACH(current, &owindows, owindows) {
 448         DLOG("matching: %p / %s\n", current->con, current->con->name);
 449         con_move_to_workspace(current->con, workspace, true, false, false);
 450     }
 451
 452     cmd_output->needs_tree_render = true;
 453     // XXX: default reply for now, make this a better reply
 454     ysuccess(true);
 455 }
 456
 457 static void cmd_resize_floating(I3_CMD, const char *way, const char *direction, Con *floating_con, int px) {
 458     LOG("floating resize\n");
 459     Rect old_rect = floating_con->rect;
 460     Con *focused_con = con_descend_focused(floating_con);
 461
 462     /* ensure that resize will take place even if pixel increment is smaller than
 463      * height increment or width increment.
 464      * fixes #1011 */
 465     const i3Window *window = focused_con->window;
 466     if (window != NULL) {
 467         if (strcmp(direction, "up") == 0 || strcmp(direction, "down") == 0 ||
 468             strcmp(direction, "height") == 0) {
 469             if (px < 0)
 470                 px = (-px < window->height_increment) ? -window->height_increment : px;
 471             else
 472                 px = (px < window->height_increment) ? window->height_increment : px;
 473         } else if (strcmp(direction, "left") == 0 || strcmp(direction, "right") == 0) {
 474             if (px < 0)
 475                 px = (-px < window->width_increment) ? -window->width_increment : px;
 476             else
 477                 px = (px < window->width_increment) ? window->width_increment : px;
 478         }
 479     }
 480
 481     if (strcmp(direction, "up") == 0) {
 482         floating_con->rect.height += px;
 483     } else if (strcmp(direction, "down") == 0 || strcmp(direction, "height") == 0) {
 484         floating_con->rect.height += px;
 485     } else if (strcmp(direction, "left") == 0) {
 486         floating_con->rect.width += px;
 487     } else {
 488         floating_con->rect.width += px;
 489     }
 490
 491     floating_check_size(floating_con);
 492
 493     /* Did we actually resize anything or did the size constraints prevent us?
 494      * If we could not resize, exit now to not move the window. */
 495     if (memcmp(&old_rect, &(floating_con->rect), sizeof(Rect)) == 0)
 496         return;
 497
 498     if (strcmp(direction, "up") == 0) {
 499         floating_con->rect.y -= (floating_con->rect.height - old_rect.height);
 500     } else if (strcmp(direction, "left") == 0) {
 501         floating_con->rect.x -= (floating_con->rect.width - old_rect.width);
 502     }
 503
 504     /* If this is a scratchpad window, don't auto center it from now on. */
 505     if (floating_con->scratchpad_state == SCRATCHPAD_FRESH)
 506         floating_con->scratchpad_state = SCRATCHPAD_CHANGED;
 507 }
 508
 509 static bool cmd_resize_tiling_direction(I3_CMD, Con *current, const char *way, const char *direction, int ppt) {
 510     LOG("tiling resize\n");
 511     Con *second = NULL;
 512     Con *first = current;
 513     direction_t search_direction;
 514     if (!strcmp(direction, "left"))
 515         search_direction = D_LEFT;
 516     else if (!strcmp(direction, "right"))
 517         search_direction = D_RIGHT;
 518     else if (!strcmp(direction, "up"))
 519         search_direction = D_UP;
 520     else
 521         search_direction = D_DOWN;
 522
 523     bool res = resize_find_tiling_participants(&first, &second, search_direction);
 524     if (!res) {
 525         LOG("No second container in this direction found.\n");
 526         ysuccess(false);
 527         return false;
 528     }
 529
 530     /* get the default percentage */
 531     int children = con_num_children(first->parent);
 532     LOG("ins. %d children\n", children);
 533     double percentage = 1.0 / children;
 534     LOG("default percentage = %f\n", percentage);
 535
 536     /* resize */
 537     LOG("second->percent = %f\n", second->percent);
 538     LOG("first->percent before = %f\n", first->percent);
 539     if (first->percent == 0.0)
 540         first->percent = percentage;
 541     if (second->percent == 0.0)
 542         second->percent = percentage;
 543     double new_first_percent = first->percent + ((double)ppt / 100.0);
 544     double new_second_percent = second->percent - ((double)ppt / 100.0);
 545     LOG("new_first_percent = %f\n", new_first_percent);
 546     LOG("new_second_percent = %f\n", new_second_percent);
 547     /* Ensure that the new percentages are positive and greater than
 548      * 0.05 to have a reasonable minimum size. */
 549     if (definitelyGreaterThan(new_first_percent, 0.05, DBL_EPSILON) &&
 550         definitelyGreaterThan(new_second_percent, 0.05, DBL_EPSILON)) {
 551         first->percent += ((double)ppt / 100.0);
 552         second->percent -= ((double)ppt / 100.0);
 553         LOG("first->percent after = %f\n", first->percent);
 554         LOG("second->percent after = %f\n", second->percent);
 555     } else {
 556         LOG("Not resizing, already at minimum size\n");
 557     }
 558
 559     return true;
 560 }
 561
 562 static bool cmd_resize_tiling_width_height(I3_CMD, Con *current, const char *way, const char *direction, int ppt) {
 563     LOG("width/height resize\n");
 564     /* get the appropriate current container (skip stacked/tabbed cons) */
 565     while (current->parent->layout == L_STACKED ||
 566            current->parent->layout == L_TABBED)
 567         current = current->parent;
 568
 569     /* Then further go up until we find one with the matching orientation. */
 570     orientation_t search_orientation =
 571         (strcmp(direction, "width") == 0 ? HORIZ : VERT);
 572
 573     while (current->type != CT_WORKSPACE &&
 574            current->type != CT_FLOATING_CON &&
 575            (con_orientation(current->parent) != search_orientation || con_num_children(current->parent) == 1))
 576         current = current->parent;
 577
 578     /* get the default percentage */
 579     int children = con_num_children(current->parent);
 580     LOG("ins. %d children\n", children);
 581     double percentage = 1.0 / children;
 582     LOG("default percentage = %f\n", percentage);
 583
 584     orientation_t orientation = con_orientation(current->parent);
 585
 586     if ((orientation == HORIZ &&
 587          strcmp(direction, "height") == 0) ||
 588         (orientation == VERT &&
 589          strcmp(direction, "width") == 0)) {
 590         LOG("You cannot resize in that direction. Your focus is in a %s split container currently.\n",
 591             (orientation == HORIZ ? "horizontal" : "vertical"));
 592         ysuccess(false);
 593         return false;
 594     }
 595
 596     if (children == 1) {
 597         LOG("This is the only container, cannot resize.\n");
 598         ysuccess(false);
 599         return false;
 600     }
 601
 602     /* Ensure all the other children have a percentage set. */
 603     Con *child;
 604     TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
 605         LOG("child->percent = %f (child %p)\n", child->percent, child);
 606         if (child->percent == 0.0)
 607             child->percent = percentage;
 608     }
 609
 610     double new_current_percent = current->percent + ((double)ppt / 100.0);
 611     double subtract_percent = ((double)ppt / 100.0) / (children - 1);
 612     LOG("new_current_percent = %f\n", new_current_percent);
 613     LOG("subtract_percent = %f\n", subtract_percent);
 614     /* Ensure that the new percentages are positive and greater than
 615      * 0.05 to have a reasonable minimum size. */
 616     TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
 617         if (child == current)
 618             continue;
 619         if (!definitelyGreaterThan(child->percent - subtract_percent, 0.05, DBL_EPSILON)) {
 620             LOG("Not resizing, already at minimum size (child %p would end up with a size of %.f\n", child, child->percent - subtract_percent);
 621             ysuccess(false);
 622             return false;
 623         }
 624     }
 625     if (!definitelyGreaterThan(new_current_percent, 0.05, DBL_EPSILON)) {
 626         LOG("Not resizing, already at minimum size\n");
 627         ysuccess(false);
 628         return false;
 629     }
 630
 631     current->percent += ((double)ppt / 100.0);
 632     LOG("current->percent after = %f\n", current->percent);
 633
 634     TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
 635         if (child == current)
 636             continue;
 637         child->percent -= subtract_percent;
 638         LOG("child->percent after (%p) = %f\n", child, child->percent);
 639     }
 640
 641     return true;
 642 }
 643
 644 /*
 645  * Implementation of 'resize grow|shrink <direction> [<px> px] [or <ppt> ppt]'.
 646  *
 647  */
 648 void cmd_resize(I3_CMD, const char *way, const char *direction, long resize_px, long resize_ppt) {
 649     DLOG("resizing in way %s, direction %s, px %ld or ppt %ld\n", way, direction, resize_px, resize_ppt);
 650     if (strcmp(way, "shrink") == 0) {
 651         resize_px *= -1;
 652         resize_ppt *= -1;
 653     }
 654
 655     HANDLE_EMPTY_MATCH;
 656
 657     owindow *current;
 658     TAILQ_FOREACH(current, &owindows, owindows) {
 659         /* Don't handle dock windows (issue #1201) */
 660         if (current->con->window && current->con->window->dock) {
 661             DLOG("This is a dock window. Not resizing (con = %p)\n)", current->con);
 662             continue;
 663         }
 664
 665         Con *floating_con;
 666         if ((floating_con = con_inside_floating(current->con))) {
 667             cmd_resize_floating(current_match, cmd_output, way, direction, floating_con, resize_px);
 668         } else {
 669             if (strcmp(direction, "width") == 0 ||
 670                 strcmp(direction, "height") == 0) {
 671                 if (!cmd_resize_tiling_width_height(current_match, cmd_output,
 672                                                     current->con, way, direction, resize_ppt))
 673                     return;
 674             } else {
 675                 if (!cmd_resize_tiling_direction(current_match, cmd_output,
 676                                                  current->con, way, direction, resize_ppt))
 677                     return;
 678             }
 679         }
 680     }
 681
 682     cmd_output->needs_tree_render = true;
 683     // XXX: default reply for now, make this a better reply
 684     ysuccess(true);
 685 }
 686
 687 /*
 688  * Implementation of 'resize set <px> [px] <px> [px]'.
 689  *
 690  */
 691 void cmd_resize_set(I3_CMD, long cwidth, long cheight) {
 692     DLOG("resizing to %ldx%ld px\n", cwidth, cheight);
 693     if (cwidth <= 0 || cheight <= 0) {
 694         ELOG("Resize failed: dimensions cannot be negative (was %ldx%ld)\n", cwidth, cheight);
 695         return;
 696     }
 697
 698     HANDLE_EMPTY_MATCH;
 699
 700     owindow *current;
 701     TAILQ_FOREACH(current, &owindows, owindows) {
 702         Con *floating_con;
 703         if ((floating_con = con_inside_floating(current->con))) {
 704             floating_resize(floating_con, cwidth, cheight);
 705         } else {
 706             ELOG("Resize failed: %p not a floating container\n", current->con);
 707         }
 708     }
 709
 710     cmd_output->needs_tree_render = true;
 711     // XXX: default reply for now, make this a better reply
 712     ysuccess(true);
 713 }
 714
 715 /*
 716  * Implementation of 'border normal|pixel [<n>]', 'border none|1pixel|toggle'.
 717  *
 718  */
 719 void cmd_border(I3_CMD, const char *border_style_str, const char *border_width) {
 720     DLOG("border style should be changed to %s with border width %s\n", border_style_str, border_width);
 721     owindow *current;
 722
 723     HANDLE_EMPTY_MATCH;
 724
 725     TAILQ_FOREACH(current, &owindows, owindows) {
 726         DLOG("matching: %p / %s\n", current->con, current->con->name);
 727         int border_style = current->con->border_style;
 728         char *end;
 729         int tmp_border_width = -1;
 730         tmp_border_width = strtol(border_width, &end, 10);
 731         if (end == border_width) {
 732             /* no valid digits found */
 733             tmp_border_width = -1;
 734         }
 735         if (strcmp(border_style_str, "toggle") == 0) {
 736             border_style++;
 737             border_style %= 3;
 738             if (border_style == BS_NORMAL)
 739                 tmp_border_width = 2;
 740             else if (border_style == BS_NONE)
 741                 tmp_border_width = 0;
 742             else if (border_style == BS_PIXEL)
 743                 tmp_border_width = 1;
 744         } else {
 745             if (strcmp(border_style_str, "normal") == 0)
 746                 border_style = BS_NORMAL;
 747             else if (strcmp(border_style_str, "pixel") == 0)
 748                 border_style = BS_PIXEL;
 749             else if (strcmp(border_style_str, "1pixel") == 0) {
 750                 border_style = BS_PIXEL;
 751                 tmp_border_width = 1;
 752             } else if (strcmp(border_style_str, "none") == 0)
 753                 border_style = BS_NONE;
 754             else {
 755                 ELOG("BUG: called with border_style=%s\n", border_style_str);
 756                 ysuccess(false);
 757                 return;
 758             }
 759         }
 760         con_set_border_style(current->con, border_style, tmp_border_width);
 761     }
 762
 763     cmd_output->needs_tree_render = true;
 764     // XXX: default reply for now, make this a better reply
 765     ysuccess(true);
 766 }
 767
 768 /*
 769  * Implementation of 'nop <comment>'.
 770  *
 771  */
 772 void cmd_nop(I3_CMD, const char *comment) {
 773     LOG("-------------------------------------------------\n");
 774     LOG("  NOP: %s\n", comment);
 775     LOG("-------------------------------------------------\n");
 776 }
 777
 778 /*
 779  * Implementation of 'append_layout <path>'.
 780  *
 781  */
 782 void cmd_append_layout(I3_CMD, const char *cpath) {
 783     char *path = sstrdup(cpath);
 784     LOG("Appending layout \"%s\"\n", path);
 785
 786     /* Make sure we allow paths like '~/.i3/layout.json' */
 787     path = resolve_tilde(path);
 788
 789     json_content_t content = json_determine_content(path);
 790     LOG("JSON content = %d\n", content);
 791     if (content == JSON_CONTENT_UNKNOWN) {
 792         ELOG("Could not determine the contents of \"%s\", not loading.\n", path);
 793         yerror("Could not determine the contents of \"%s\".", path);
 794         free(path);
 795         return;
 796     }
 797
 798     Con *parent = focused;
 799     if (content == JSON_CONTENT_WORKSPACE) {
 800         parent = output_get_content(con_get_output(parent));
 801     } else {
 802         /* We need to append the layout to a split container, since a leaf
 803          * container must not have any children (by definition).
 804          * Note that we explicitly check for workspaces, since they are okay for
 805          * this purpose, but con_accepts_window() returns false for workspaces. */
 806         while (parent->type != CT_WORKSPACE && !con_accepts_window(parent))
 807             parent = parent->parent;
 808     }
 809     DLOG("Appending to parent=%p instead of focused=%p\n", parent, focused);
 810     char *errormsg = NULL;
 811     tree_append_json(parent, path, &errormsg);
 812     if (errormsg != NULL) {
 813         yerror(errormsg);
 814         free(errormsg);
 815         /* Note that we continue executing since tree_append_json() has
 816          * side-effects — user-provided layouts can be partly valid, partly
 817          * invalid, leading to half of the placeholder containers being
 818          * created. */
 819     } else {
 820         ysuccess(true);
 821     }
 822
 823     // XXX: This is a bit of a kludge. Theoretically, render_con(parent,
 824     // false); should be enough, but when sending 'workspace 4; append_layout
 825     // /tmp/foo.json', the needs_tree_render == true of the workspace command
 826     // is not executed yet and will be batched with append_layout’s
 827     // needs_tree_render after the parser finished. We should check if that is
 828     // necessary at all.
 829     render_con(croot, false);
 830
 831     restore_open_placeholder_windows(parent);
 832
 833     if (content == JSON_CONTENT_WORKSPACE)
 834         ipc_send_workspace_event("restored", parent, NULL);
 835
 836     free(path);
 837     cmd_output->needs_tree_render = true;
 838 }
 839
 840 /*
 841  * Implementation of 'workspace next|prev|next_on_output|prev_on_output'.
 842  *
 843  */
 844 void cmd_workspace(I3_CMD, const char *which) {
 845     Con *ws;
 846
 847     DLOG("which=%s\n", which);
 848
 849     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 850         LOG("Cannot switch workspace while in global fullscreen\n");
 851         ysuccess(false);
 852         return;
 853     }
 854
 855     if (strcmp(which, "next") == 0)
 856         ws = workspace_next();
 857     else if (strcmp(which, "prev") == 0)
 858         ws = workspace_prev();
 859     else if (strcmp(which, "next_on_output") == 0)
 860         ws = workspace_next_on_output();
 861     else if (strcmp(which, "prev_on_output") == 0)
 862         ws = workspace_prev_on_output();
 863     else {
 864         ELOG("BUG: called with which=%s\n", which);
 865         ysuccess(false);
 866         return;
 867     }
 868
 869     workspace_show(ws);
 870
 871     cmd_output->needs_tree_render = true;
 872     // XXX: default reply for now, make this a better reply
 873     ysuccess(true);
 874 }
 875
 876 /*
 877  * Implementation of 'workspace [--no-auto-back-and-forth] number <name>'
 878  *
 879  */
 880 void cmd_workspace_number(I3_CMD, const char *which, const char *_no_auto_back_and_forth) {
 881     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 882     Con *output, *workspace = NULL;
 883
 884     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 885         LOG("Cannot switch workspace while in global fullscreen\n");
 886         ysuccess(false);
 887         return;
 888     }
 889
 890     long parsed_num = ws_name_to_number(which);
 891
 892     if (parsed_num == -1) {
 893         LOG("Could not parse initial part of \"%s\" as a number.\n", which);
 894         yerror("Could not parse number \"%s\"", which);
 895         return;
 896     }
 897
 898     TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
 899     GREP_FIRST(workspace, output_get_content(output),
 900                child->num == parsed_num);
 901
 902     if (!workspace) {
 903         LOG("There is no workspace with number %ld, creating a new one.\n", parsed_num);
 904         ysuccess(true);
 905         workspace_show_by_name(which);
 906         cmd_output->needs_tree_render = true;
 907         return;
 908     }
 909     if (!no_auto_back_and_forth && maybe_back_and_forth(cmd_output, workspace->name))
 910         return;
 911     workspace_show(workspace);
 912
 913     cmd_output->needs_tree_render = true;
 914     // XXX: default reply for now, make this a better reply
 915     ysuccess(true);
 916 }
 917
 918 /*
 919  * Implementation of 'workspace back_and_forth'.
 920  *
 921  */
 922 void cmd_workspace_back_and_forth(I3_CMD) {
 923     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 924         LOG("Cannot switch workspace while in global fullscreen\n");
 925         ysuccess(false);
 926         return;
 927     }
 928
 929     workspace_back_and_forth();
 930
 931     cmd_output->needs_tree_render = true;
 932     // XXX: default reply for now, make this a better reply
 933     ysuccess(true);
 934 }
 935
 936 /*
 937  * Implementation of 'workspace [--no-auto-back-and-forth] <name>'
 938  *
 939  */
 940 void cmd_workspace_name(I3_CMD, const char *name, const char *_no_auto_back_and_forth) {
 941     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 942
 943     if (strncasecmp(name, "__", strlen("__")) == 0) {
 944         LOG("You cannot switch to the i3-internal workspaces (\"%s\").\n", name);
 945         ysuccess(false);
 946         return;
 947     }
 948
 949     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 950         LOG("Cannot switch workspace while in global fullscreen\n");
 951         ysuccess(false);
 952         return;
 953     }
 954
 955     DLOG("should switch to workspace %s\n", name);
 956     if (!no_auto_back_and_forth && maybe_back_and_forth(cmd_output, name))
 957         return;
 958     workspace_show_by_name(name);
 959
 960     cmd_output->needs_tree_render = true;
 961     // XXX: default reply for now, make this a better reply
 962     ysuccess(true);
 963 }
 964
 965 /*
 966  * Implementation of 'mark [--add|--replace] [--toggle] <mark>'
 967  *
 968  */
 969 void cmd_mark(I3_CMD, const char *mark, const char *mode, const char *toggle) {
 970     HANDLE_EMPTY_MATCH;
 971
 972     owindow *current = TAILQ_FIRST(&owindows);
 973     if (current == NULL) {
 974         ysuccess(false);
 975         return;
 976     }
 977
 978     /* Marks must be unique, i.e., no two windows must have the same mark. */
 979     if (current != TAILQ_LAST(&owindows, owindows_head)) {
 980         yerror("A mark must not be put onto more than one window");
 981         return;
 982     }
 983
 984     DLOG("matching: %p / %s\n", current->con, current->con->name);
 985
 986     mark_mode_t mark_mode = (mode == NULL || strcmp(mode, "--replace") == 0) ? MM_REPLACE : MM_ADD;
 987     if (toggle != NULL) {
 988         con_mark_toggle(current->con, mark, mark_mode);
 989     } else {
 990         con_mark(current->con, mark, mark_mode);
 991     }
 992
 993     cmd_output->needs_tree_render = true;
 994     // XXX: default reply for now, make this a better reply
 995     ysuccess(true);
 996 }
 997
 998 /*
 999  * Implementation of 'unmark [mark]'
1000  *
1001  */
1002 void cmd_unmark(I3_CMD, const char *mark) {
1003     if (match_is_empty(current_match)) {
1004         con_unmark(NULL, mark);
1005     } else {
1006         owindow *current;
1007         TAILQ_FOREACH(current, &owindows, owindows) {
1008             con_unmark(current->con, mark);
1009         }
1010     }
1011
1012     cmd_output->needs_tree_render = true;
1013     // XXX: default reply for now, make this a better reply
1014     ysuccess(true);
1015 }
1016
1017 /*
1018  * Implementation of 'mode <string>'.
1019  *
1020  */
1021 void cmd_mode(I3_CMD, const char *mode) {
1022     DLOG("mode=%s\n", mode);
1023     switch_mode(mode);
1024
1025     // XXX: default reply for now, make this a better reply
1026     ysuccess(true);
1027 }
1028
1029 /*
1030  * Implementation of 'move [window|container] [to] output <str>'.
1031  *
1032  */
1033 void cmd_move_con_to_output(I3_CMD, const char *name) {
1034     DLOG("Should move window to output \"%s\".\n", name);
1035     HANDLE_EMPTY_MATCH;
1036
1037     owindow *current;
1038     bool had_error = false;
1039     TAILQ_FOREACH(current, &owindows, owindows) {
1040         DLOG("matching: %p / %s\n", current->con, current->con->name);
1041
1042         Output *current_output = get_output_of_con(current->con);
1043         assert(current_output != NULL);
1044
1045         Output *output = get_output_from_string(current_output, name);
1046         if (output == NULL) {
1047             ELOG("Could not find output \"%s\", skipping.\n", name);
1048             had_error = true;
1049             continue;
1050         }
1051
1052         Con *ws = NULL;
1053         GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1054         if (ws == NULL) {
1055             ELOG("Could not find a visible workspace on output %p.\n", output);
1056             had_error = true;
1057             continue;
1058         }
1059
1060         con_move_to_workspace(current->con, ws, true, false, false);
1061     }
1062
1063     cmd_output->needs_tree_render = true;
1064     ysuccess(!had_error);
1065 }
1066
1067 /*
1068  * Implementation of 'move [container|window] [to] mark <str>'.
1069  *
1070  */
1071 void cmd_move_con_to_mark(I3_CMD, const char *mark) {
1072     DLOG("moving window to mark \"%s\"\n", mark);
1073
1074     HANDLE_EMPTY_MATCH;
1075
1076     bool result = true;
1077     owindow *current;
1078     TAILQ_FOREACH(current, &owindows, owindows) {
1079         DLOG("moving matched window %p / %s to mark \"%s\"\n", current->con, current->con->name, mark);
1080         result &= con_move_to_mark(current->con, mark);
1081     }
1082
1083     cmd_output->needs_tree_render = true;
1084     ysuccess(result);
1085 }
1086
1087 /*
1088  * Implementation of 'floating enable|disable|toggle'
1089  *
1090  */
1091 void cmd_floating(I3_CMD, const char *floating_mode) {
1092     owindow *current;
1093
1094     DLOG("floating_mode=%s\n", floating_mode);
1095
1096     HANDLE_EMPTY_MATCH;
1097
1098     TAILQ_FOREACH(current, &owindows, owindows) {
1099         DLOG("matching: %p / %s\n", current->con, current->con->name);
1100         if (strcmp(floating_mode, "toggle") == 0) {
1101             DLOG("should toggle mode\n");
1102             toggle_floating_mode(current->con, false);
1103         } else {
1104             DLOG("should switch mode to %s\n", floating_mode);
1105             if (strcmp(floating_mode, "enable") == 0) {
1106                 floating_enable(current->con, false);
1107             } else {
1108                 floating_disable(current->con, false);
1109             }
1110         }
1111     }
1112
1113     cmd_output->needs_tree_render = true;
1114     // XXX: default reply for now, make this a better reply
1115     ysuccess(true);
1116 }
1117
1118 /*
1119  * Implementation of 'move workspace to [output] <str>'.
1120  *
1121  */
1122 void cmd_move_workspace_to_output(I3_CMD, const char *name) {
1123     DLOG("should move workspace to output %s\n", name);
1124
1125     HANDLE_EMPTY_MATCH;
1126
1127     owindow *current;
1128     TAILQ_FOREACH(current, &owindows, owindows) {
1129         Con *ws = con_get_workspace(current->con);
1130         bool success = workspace_move_to_output(ws, name);
1131         if (!success) {
1132             ELOG("Failed to move workspace to output.\n");
1133             ysuccess(false);
1134             return;
1135         }
1136     }
1137
1138     cmd_output->needs_tree_render = true;
1139     // XXX: default reply for now, make this a better reply
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         ELOG("BUG: called with kill_mode=%s\n", kill_mode_str);
1199         ysuccess(false);
1200         return;
1201     }
1202
1203     HANDLE_EMPTY_MATCH;
1204
1205     owindow *current;
1206     TAILQ_FOREACH(current, &owindows, owindows) {
1207         con_close(current->con, kill_mode);
1208     }
1209
1210     cmd_output->needs_tree_render = true;
1211     // XXX: default reply for now, make this a better reply
1212     ysuccess(true);
1213 }
1214
1215 /*
1216  * Implementation of 'exec [--no-startup-id] <command>'.
1217  *
1218  */
1219 void cmd_exec(I3_CMD, const char *nosn, const char *command) {
1220     bool no_startup_id = (nosn != NULL);
1221
1222     DLOG("should execute %s, no_startup_id = %d\n", command, no_startup_id);
1223     start_application(command, no_startup_id);
1224
1225     // XXX: default reply for now, make this a better reply
1226     ysuccess(true);
1227 }
1228
1229 /*
1230  * Implementation of 'focus left|right|up|down'.
1231  *
1232  */
1233 void cmd_focus_direction(I3_CMD, const char *direction) {
1234     DLOG("direction = *%s*\n", direction);
1235
1236     if (strcmp(direction, "left") == 0)
1237         tree_next('p', HORIZ);
1238     else if (strcmp(direction, "right") == 0)
1239         tree_next('n', HORIZ);
1240     else if (strcmp(direction, "up") == 0)
1241         tree_next('p', VERT);
1242     else if (strcmp(direction, "down") == 0)
1243         tree_next('n', VERT);
1244     else {
1245         ELOG("Invalid focus direction (%s)\n", direction);
1246         ysuccess(false);
1247         return;
1248     }
1249
1250     cmd_output->needs_tree_render = true;
1251     // XXX: default reply for now, make this a better reply
1252     ysuccess(true);
1253 }
1254
1255 /*
1256  * Implementation of 'focus tiling|floating|mode_toggle'.
1257  *
1258  */
1259 void cmd_focus_window_mode(I3_CMD, const char *window_mode) {
1260     DLOG("window_mode = %s\n", window_mode);
1261
1262     Con *ws = con_get_workspace(focused);
1263     if (ws != NULL) {
1264         if (strcmp(window_mode, "mode_toggle") == 0) {
1265             if (con_inside_floating(focused))
1266                 window_mode = "tiling";
1267             else
1268                 window_mode = "floating";
1269         }
1270         Con *current;
1271         TAILQ_FOREACH(current, &(ws->focus_head), focused) {
1272             if ((strcmp(window_mode, "floating") == 0 && current->type != CT_FLOATING_CON) ||
1273                 (strcmp(window_mode, "tiling") == 0 && current->type == CT_FLOATING_CON))
1274                 continue;
1275
1276             con_focus(con_descend_focused(current));
1277             break;
1278         }
1279     }
1280
1281     cmd_output->needs_tree_render = true;
1282     // XXX: default reply for now, make this a better reply
1283     ysuccess(true);
1284 }
1285
1286 /*
1287  * Implementation of 'focus parent|child'.
1288  *
1289  */
1290 void cmd_focus_level(I3_CMD, const char *level) {
1291     DLOG("level = %s\n", level);
1292     bool success = false;
1293
1294     /* Focusing the parent can only be allowed if the newly
1295      * focused container won't escape the fullscreen container. */
1296     if (strcmp(level, "parent") == 0) {
1297         if (focused && focused->parent) {
1298             if (con_fullscreen_permits_focusing(focused->parent))
1299                 success = level_up();
1300             else
1301                 ELOG("'focus parent': Currently in fullscreen, not going up\n");
1302         }
1303     }
1304
1305     /* Focusing a child should always be allowed. */
1306     else
1307         success = level_down();
1308
1309     cmd_output->needs_tree_render = success;
1310     // XXX: default reply for now, make this a better reply
1311     ysuccess(success);
1312 }
1313
1314 /*
1315  * Implementation of 'focus'.
1316  *
1317  */
1318 void cmd_focus(I3_CMD) {
1319     DLOG("current_match = %p\n", current_match);
1320
1321     if (match_is_empty(current_match)) {
1322         ELOG("You have to specify which window/container should be focused.\n");
1323         ELOG("Example: [class=\"urxvt\" title=\"irssi\"] focus\n");
1324
1325         yerror("You have to specify which window/container should be focused");
1326
1327         return;
1328     }
1329
1330     Con *__i3_scratch = workspace_get("__i3_scratch", NULL);
1331     int count = 0;
1332     owindow *current;
1333     TAILQ_FOREACH(current, &owindows, owindows) {
1334         Con *ws = con_get_workspace(current->con);
1335         /* If no workspace could be found, this was a dock window.
1336          * Just skip it, you cannot focus dock windows. */
1337         if (!ws)
1338             continue;
1339
1340         /* Check the fullscreen focus constraints. */
1341         if (!con_fullscreen_permits_focusing(current->con)) {
1342             LOG("Cannot change focus while in fullscreen mode (fullscreen rules).\n");
1343             ysuccess(false);
1344             return;
1345         }
1346
1347         /* In case this is a scratchpad window, call scratchpad_show(). */
1348         if (ws == __i3_scratch) {
1349             scratchpad_show(current->con);
1350             count++;
1351             /* While for the normal focus case we can change focus multiple
1352              * times and only a single window ends up focused, we could show
1353              * multiple scratchpad windows. So, rather break here. */
1354             break;
1355         }
1356
1357         /* If the container is not on the current workspace,
1358          * workspace_show() will switch to a different workspace and (if
1359          * enabled) trigger a mouse pointer warp to the currently focused
1360          * container (!) on the target workspace.
1361          *
1362          * Therefore, before calling workspace_show(), we make sure that
1363          * 'current' will be focused on the workspace. However, we cannot
1364          * just con_focus(current) because then the pointer will not be
1365          * warped at all (the code thinks we are already there).
1366          *
1367          * So we focus 'current' to make it the currently focused window of
1368          * the target workspace, then revert focus. */
1369         Con *currently_focused = focused;
1370         con_focus(current->con);
1371         con_focus(currently_focused);
1372
1373         /* Now switch to the workspace, then focus */
1374         workspace_show(ws);
1375         LOG("focusing %p / %s\n", current->con, current->con->name);
1376         con_focus(current->con);
1377         count++;
1378     }
1379
1380     if (count > 1)
1381         LOG("WARNING: Your criteria for the focus command matches %d containers, "
1382             "while only exactly one container can be focused at a time.\n",
1383             count);
1384
1385     cmd_output->needs_tree_render = true;
1386     ysuccess(count > 0);
1387 }
1388
1389 /*
1390  * Implementation of 'fullscreen enable|toggle [global]' and
1391  *                   'fullscreen disable'
1392  *
1393  */
1394 void cmd_fullscreen(I3_CMD, const char *action, const char *fullscreen_mode) {
1395     fullscreen_mode_t mode = strcmp(fullscreen_mode, "global") == 0 ? CF_GLOBAL : CF_OUTPUT;
1396     DLOG("%s fullscreen, mode = %s\n", action, fullscreen_mode);
1397     owindow *current;
1398
1399     HANDLE_EMPTY_MATCH;
1400
1401     TAILQ_FOREACH(current, &owindows, owindows) {
1402         DLOG("matching: %p / %s\n", current->con, current->con->name);
1403         if (strcmp(action, "toggle") == 0) {
1404             con_toggle_fullscreen(current->con, mode);
1405         } else if (strcmp(action, "enable") == 0) {
1406             con_enable_fullscreen(current->con, mode);
1407         } else if (strcmp(action, "disable") == 0) {
1408             con_disable_fullscreen(current->con);
1409         }
1410     }
1411
1412     cmd_output->needs_tree_render = true;
1413     // XXX: default reply for now, make this a better reply
1414     ysuccess(true);
1415 }
1416
1417 /*
1418  * Implementation of 'sticky enable|disable|toggle'.
1419  *
1420  */
1421 void cmd_sticky(I3_CMD, const char *action) {
1422     DLOG("%s sticky on window\n", action);
1423     HANDLE_EMPTY_MATCH;
1424
1425     owindow *current;
1426     TAILQ_FOREACH(current, &owindows, owindows) {
1427         if (current->con->window == NULL) {
1428             ELOG("only containers holding a window can be made sticky, skipping con = %p\n", current->con);
1429             continue;
1430         }
1431         DLOG("setting sticky for container = %p / %s\n", current->con, current->con->name);
1432
1433         bool sticky = false;
1434         if (strcmp(action, "enable") == 0)
1435             sticky = true;
1436         else if (strcmp(action, "disable") == 0)
1437             sticky = false;
1438         else if (strcmp(action, "toggle") == 0)
1439             sticky = !current->con->sticky;
1440
1441         current->con->sticky = sticky;
1442         ewmh_update_sticky(current->con->window->id, sticky);
1443     }
1444
1445     /* A window we made sticky might not be on a visible workspace right now, so we need to make
1446      * sure it gets pushed to the front now. */
1447     output_push_sticky_windows(focused);
1448
1449     ewmh_update_wm_desktop();
1450
1451     cmd_output->needs_tree_render = true;
1452     ysuccess(true);
1453 }
1454
1455 /*
1456  * Implementation of 'move <direction> [<pixels> [px]]'.
1457  *
1458  */
1459 void cmd_move_direction(I3_CMD, const char *direction, long move_px) {
1460     owindow *current;
1461     HANDLE_EMPTY_MATCH;
1462
1463     Con *initially_focused = focused;
1464
1465     TAILQ_FOREACH(current, &owindows, owindows) {
1466         DLOG("moving in direction %s, px %ld\n", direction, move_px);
1467         if (con_is_floating(current->con)) {
1468             DLOG("floating move with %ld pixels\n", move_px);
1469             Rect newrect = current->con->parent->rect;
1470             if (strcmp(direction, "left") == 0) {
1471                 newrect.x -= move_px;
1472             } else if (strcmp(direction, "right") == 0) {
1473                 newrect.x += move_px;
1474             } else if (strcmp(direction, "up") == 0) {
1475                 newrect.y -= move_px;
1476             } else if (strcmp(direction, "down") == 0) {
1477                 newrect.y += move_px;
1478             }
1479             floating_reposition(current->con->parent, newrect);
1480         } else {
1481             tree_move(current->con, (strcmp(direction, "right") == 0 ? D_RIGHT : (strcmp(direction, "left") == 0 ? D_LEFT : (strcmp(direction, "up") == 0 ? D_UP : D_DOWN))));
1482             cmd_output->needs_tree_render = true;
1483         }
1484     }
1485
1486     /* the move command should not disturb focus */
1487     if (focused != initially_focused)
1488         con_focus(initially_focused);
1489
1490     // XXX: default reply for now, make this a better reply
1491     ysuccess(true);
1492 }
1493
1494 /*
1495  * Implementation of 'layout default|stacked|stacking|tabbed|splitv|splith'.
1496  *
1497  */
1498 void cmd_layout(I3_CMD, const char *layout_str) {
1499     HANDLE_EMPTY_MATCH;
1500
1501     if (strcmp(layout_str, "stacking") == 0)
1502         layout_str = "stacked";
1503     layout_t layout;
1504     /* default is a special case which will be handled in con_set_layout(). */
1505     if (strcmp(layout_str, "default") == 0)
1506         layout = L_DEFAULT;
1507     else if (strcmp(layout_str, "stacked") == 0)
1508         layout = L_STACKED;
1509     else if (strcmp(layout_str, "tabbed") == 0)
1510         layout = L_TABBED;
1511     else if (strcmp(layout_str, "splitv") == 0)
1512         layout = L_SPLITV;
1513     else if (strcmp(layout_str, "splith") == 0)
1514         layout = L_SPLITH;
1515     else {
1516         ELOG("Unknown layout \"%s\", this is a mismatch between code and parser spec.\n", layout_str);
1517         return;
1518     }
1519
1520     DLOG("changing layout to %s (%d)\n", layout_str, layout);
1521
1522     owindow *current;
1523     TAILQ_FOREACH(current, &owindows, owindows) {
1524         if (con_is_docked(current->con)) {
1525             ELOG("cannot change layout of a docked container, skipping it.\n");
1526             continue;
1527         }
1528
1529         DLOG("matching: %p / %s\n", current->con, current->con->name);
1530         con_set_layout(current->con, layout);
1531     }
1532
1533     cmd_output->needs_tree_render = true;
1534     // XXX: default reply for now, make this a better reply
1535     ysuccess(true);
1536 }
1537
1538 /*
1539  * Implementation of 'layout toggle [all|split]'.
1540  *
1541  */
1542 void cmd_layout_toggle(I3_CMD, const char *toggle_mode) {
1543     owindow *current;
1544
1545     if (toggle_mode == NULL)
1546         toggle_mode = "default";
1547
1548     DLOG("toggling layout (mode = %s)\n", toggle_mode);
1549
1550     /* check if the match is empty, not if the result is empty */
1551     if (match_is_empty(current_match))
1552         con_toggle_layout(focused, toggle_mode);
1553     else {
1554         TAILQ_FOREACH(current, &owindows, owindows) {
1555             DLOG("matching: %p / %s\n", current->con, current->con->name);
1556             con_toggle_layout(current->con, toggle_mode);
1557         }
1558     }
1559
1560     cmd_output->needs_tree_render = true;
1561     // XXX: default reply for now, make this a better reply
1562     ysuccess(true);
1563 }
1564
1565 /*
1566  * Implementation of 'exit'.
1567  *
1568  */
1569 void cmd_exit(I3_CMD) {
1570     LOG("Exiting due to user command.\n");
1571 #ifdef I3_ASAN_ENABLED
1572     __lsan_do_leak_check();
1573 #endif
1574     ipc_shutdown();
1575     unlink(config.ipc_socket_path);
1576     xcb_disconnect(conn);
1577     exit(0);
1578
1579     /* unreached */
1580 }
1581
1582 /*
1583  * Implementation of 'reload'.
1584  *
1585  */
1586 void cmd_reload(I3_CMD) {
1587     LOG("reloading\n");
1588     kill_nagbar(&config_error_nagbar_pid, false);
1589     kill_nagbar(&command_error_nagbar_pid, false);
1590     load_configuration(conn, NULL, true);
1591     x_set_i3_atoms();
1592     /* Send an IPC event just in case the ws names have changed */
1593     ipc_send_workspace_event("reload", NULL, NULL);
1594     /* Send an update event for the barconfig just in case it has changed */
1595     update_barconfig();
1596
1597     // XXX: default reply for now, make this a better reply
1598     ysuccess(true);
1599 }
1600
1601 /*
1602  * Implementation of 'restart'.
1603  *
1604  */
1605 void cmd_restart(I3_CMD) {
1606     LOG("restarting i3\n");
1607     ipc_shutdown();
1608     unlink(config.ipc_socket_path);
1609     /* We need to call this manually since atexit handlers don’t get called
1610      * when exec()ing */
1611     purge_zerobyte_logfile();
1612     i3_restart(false);
1613
1614     // XXX: default reply for now, make this a better reply
1615     ysuccess(true);
1616 }
1617
1618 /*
1619  * Implementation of 'open'.
1620  *
1621  */
1622 void cmd_open(I3_CMD) {
1623     LOG("opening new container\n");
1624     Con *con = tree_open_con(NULL, NULL);
1625     con->layout = L_SPLITH;
1626     con_focus(con);
1627
1628     y(map_open);
1629     ystr("success");
1630     y(bool, true);
1631     ystr("id");
1632     y(integer, (long int)con);
1633     y(map_close);
1634
1635     cmd_output->needs_tree_render = true;
1636 }
1637
1638 /*
1639  * Implementation of 'focus output <output>'.
1640  *
1641  */
1642 void cmd_focus_output(I3_CMD, const char *name) {
1643     owindow *current;
1644
1645     DLOG("name = %s\n", name);
1646
1647     HANDLE_EMPTY_MATCH;
1648
1649     /* get the output */
1650     Output *current_output = NULL;
1651     Output *output;
1652
1653     TAILQ_FOREACH(current, &owindows, owindows)
1654     current_output = get_output_of_con(current->con);
1655     assert(current_output != NULL);
1656
1657     output = get_output_from_string(current_output, name);
1658
1659     if (!output) {
1660         LOG("No such output found.\n");
1661         ysuccess(false);
1662         return;
1663     }
1664
1665     /* get visible workspace on output */
1666     Con *ws = NULL;
1667     GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1668     if (!ws) {
1669         ysuccess(false);
1670         return;
1671     }
1672
1673     workspace_show(ws);
1674
1675     cmd_output->needs_tree_render = true;
1676     // XXX: default reply for now, make this a better reply
1677     ysuccess(true);
1678 }
1679
1680 /*
1681  * Implementation of 'move [window|container] [to] [absolute] position <px> [px] <px> [px]
1682  *
1683  */
1684 void cmd_move_window_to_position(I3_CMD, const char *method, long x, long y) {
1685     bool has_error = false;
1686
1687     owindow *current;
1688     HANDLE_EMPTY_MATCH;
1689
1690     TAILQ_FOREACH(current, &owindows, owindows) {
1691         if (!con_is_floating(current->con)) {
1692             ELOG("Cannot change position. The window/container is not floating\n");
1693
1694             if (!has_error) {
1695                 yerror("Cannot change position of a window/container because it is not floating.");
1696                 has_error = true;
1697             }
1698
1699             continue;
1700         }
1701
1702         if (strcmp(method, "absolute") == 0) {
1703             current->con->parent->rect.x = x;
1704             current->con->parent->rect.y = y;
1705
1706             DLOG("moving to absolute position %ld %ld\n", x, y);
1707             floating_maybe_reassign_ws(current->con->parent);
1708             cmd_output->needs_tree_render = true;
1709         }
1710
1711         if (strcmp(method, "position") == 0) {
1712             Rect newrect = current->con->parent->rect;
1713
1714             DLOG("moving to position %ld %ld\n", x, y);
1715             newrect.x = x;
1716             newrect.y = y;
1717
1718             floating_reposition(current->con->parent, newrect);
1719         }
1720     }
1721
1722     // XXX: default reply for now, make this a better reply
1723     if (!has_error)
1724         ysuccess(true);
1725 }
1726
1727 /*
1728  * Implementation of 'move [window|container] [to] [absolute] position center
1729  *
1730  */
1731 void cmd_move_window_to_center(I3_CMD, const char *method) {
1732     bool has_error = false;
1733     HANDLE_EMPTY_MATCH;
1734
1735     owindow *current;
1736     TAILQ_FOREACH(current, &owindows, owindows) {
1737         Con *floating_con = con_inside_floating(current->con);
1738         if (floating_con == NULL) {
1739             ELOG("con %p / %s is not floating, cannot move it to the center.\n",
1740                  current->con, current->con->name);
1741
1742             if (!has_error) {
1743                 yerror("Cannot change position of a window/container because it is not floating.");
1744                 has_error = true;
1745             }
1746
1747             continue;
1748         }
1749
1750         if (strcmp(method, "absolute") == 0) {
1751             DLOG("moving to absolute center\n");
1752             floating_center(floating_con, croot->rect);
1753
1754             floating_maybe_reassign_ws(floating_con);
1755             cmd_output->needs_tree_render = true;
1756         }
1757
1758         if (strcmp(method, "position") == 0) {
1759             DLOG("moving to center\n");
1760             floating_center(floating_con, con_get_workspace(floating_con)->rect);
1761
1762             cmd_output->needs_tree_render = true;
1763         }
1764     }
1765
1766     // XXX: default reply for now, make this a better reply
1767     if (!has_error)
1768         ysuccess(true);
1769 }
1770
1771 /*
1772  * Implementation of 'move [window|container] [to] position mouse'
1773  *
1774  */
1775 void cmd_move_window_to_mouse(I3_CMD) {
1776     HANDLE_EMPTY_MATCH;
1777
1778     owindow *current;
1779     TAILQ_FOREACH(current, &owindows, owindows) {
1780         Con *floating_con = con_inside_floating(current->con);
1781         if (floating_con == NULL) {
1782             DLOG("con %p / %s is not floating, cannot move it to the mouse position.\n",
1783                  current->con, current->con->name);
1784             continue;
1785         }
1786
1787         DLOG("moving floating container %p / %s to cursor position\n", floating_con, floating_con->name);
1788         floating_move_to_pointer(floating_con);
1789     }
1790
1791     cmd_output->needs_tree_render = true;
1792     ysuccess(true);
1793 }
1794
1795 /*
1796  * Implementation of 'move scratchpad'.
1797  *
1798  */
1799 void cmd_move_scratchpad(I3_CMD) {
1800     DLOG("should move window to scratchpad\n");
1801     owindow *current;
1802
1803     HANDLE_EMPTY_MATCH;
1804
1805     TAILQ_FOREACH(current, &owindows, owindows) {
1806         DLOG("matching: %p / %s\n", current->con, current->con->name);
1807         scratchpad_move(current->con);
1808     }
1809
1810     cmd_output->needs_tree_render = true;
1811     // XXX: default reply for now, make this a better reply
1812     ysuccess(true);
1813 }
1814
1815 /*
1816  * Implementation of 'scratchpad show'.
1817  *
1818  */
1819 void cmd_scratchpad_show(I3_CMD) {
1820     DLOG("should show scratchpad window\n");
1821     owindow *current;
1822
1823     if (match_is_empty(current_match)) {
1824         scratchpad_show(NULL);
1825     } else {
1826         TAILQ_FOREACH(current, &owindows, owindows) {
1827             DLOG("matching: %p / %s\n", current->con, current->con->name);
1828             scratchpad_show(current->con);
1829         }
1830     }
1831
1832     cmd_output->needs_tree_render = true;
1833     // XXX: default reply for now, make this a better reply
1834     ysuccess(true);
1835 }
1836
1837 /*
1838  * Implementation of 'title_format <format>'
1839  *
1840  */
1841 void cmd_title_format(I3_CMD, const char *format) {
1842     DLOG("setting title_format to \"%s\"\n", format);
1843     HANDLE_EMPTY_MATCH;
1844
1845     owindow *current;
1846     TAILQ_FOREACH(current, &owindows, owindows) {
1847         DLOG("setting title_format for %p / %s\n", current->con, current->con->name);
1848         FREE(current->con->title_format);
1849
1850         /* If we only display the title without anything else, we can skip the parsing step,
1851          * so we remove the title format altogether. */
1852         if (strcasecmp(format, "%title") != 0) {
1853             current->con->title_format = sstrdup(format);
1854
1855             if (current->con->window != NULL) {
1856                 i3String *formatted_title = con_parse_title_format(current->con);
1857                 ewmh_update_visible_name(current->con->window->id, i3string_as_utf8(formatted_title));
1858                 I3STRING_FREE(formatted_title);
1859             }
1860         } else {
1861             if (current->con->window != NULL) {
1862                 /* We can remove _NET_WM_VISIBLE_NAME since we don't display a custom title. */
1863                 ewmh_update_visible_name(current->con->window->id, NULL);
1864             }
1865         }
1866
1867         if (current->con->window != NULL) {
1868             /* Make sure the window title is redrawn immediately. */
1869             current->con->window->name_x_changed = true;
1870         } else {
1871             /* For windowless containers we also need to force the redrawing. */
1872             FREE(current->con->deco_render_params);
1873         }
1874     }
1875
1876     cmd_output->needs_tree_render = true;
1877     ysuccess(true);
1878 }
1879
1880 /*
1881  * Implementation of 'rename workspace [<name>] to <name>'
1882  *
1883  */
1884 void cmd_rename_workspace(I3_CMD, const char *old_name, const char *new_name) {
1885     if (strncasecmp(new_name, "__", strlen("__")) == 0) {
1886         LOG("Cannot rename workspace to \"%s\": names starting with __ are i3-internal.\n", new_name);
1887         ysuccess(false);
1888         return;
1889     }
1890     if (old_name) {
1891         LOG("Renaming workspace \"%s\" to \"%s\"\n", old_name, new_name);
1892     } else {
1893         LOG("Renaming current workspace to \"%s\"\n", new_name);
1894     }
1895
1896     Con *output, *workspace = NULL;
1897     if (old_name) {
1898         TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
1899         GREP_FIRST(workspace, output_get_content(output),
1900                    !strcasecmp(child->name, old_name));
1901     } else {
1902         workspace = con_get_workspace(focused);
1903         old_name = workspace->name;
1904     }
1905
1906     if (!workspace) {
1907         yerror("Old workspace \"%s\" not found", old_name);
1908         return;
1909     }
1910
1911     Con *check_dest = NULL;
1912     TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
1913     GREP_FIRST(check_dest, output_get_content(output),
1914                !strcasecmp(child->name, new_name));
1915
1916     if (check_dest != NULL) {
1917         yerror("New workspace \"%s\" already exists", new_name);
1918         return;
1919     }
1920
1921     /* Change the name and try to parse it as a number. */
1922     /* old_name might refer to workspace->name, so copy it before free()ing */
1923     char *old_name_copy = sstrdup(old_name);
1924     FREE(workspace->name);
1925     workspace->name = sstrdup(new_name);
1926
1927     workspace->num = ws_name_to_number(new_name);
1928     LOG("num = %d\n", workspace->num);
1929
1930     /* By re-attaching, the sort order will be correct afterwards. */
1931     Con *previously_focused = focused;
1932     Con *parent = workspace->parent;
1933     con_detach(workspace);
1934     con_attach(workspace, parent, false);
1935
1936     /* Move the workspace to the correct output if it has an assignment */
1937     struct Workspace_Assignment *assignment = NULL;
1938     TAILQ_FOREACH(assignment, &ws_assignments, ws_assignments) {
1939         if (assignment->output == NULL)
1940             continue;
1941         if (strcmp(assignment->name, workspace->name) != 0 && (!name_is_digits(assignment->name) || ws_name_to_number(assignment->name) != workspace->num)) {
1942             continue;
1943         }
1944
1945         workspace_move_to_output(workspace, assignment->output);
1946
1947         if (previously_focused)
1948             workspace_show(con_get_workspace(previously_focused));
1949
1950         break;
1951     }
1952
1953     /* Restore the previous focus since con_attach messes with the focus. */
1954     con_focus(previously_focused);
1955
1956     cmd_output->needs_tree_render = true;
1957     ysuccess(true);
1958
1959     ipc_send_workspace_event("rename", workspace, NULL);
1960     ewmh_update_desktop_names();
1961     ewmh_update_desktop_viewport();
1962     ewmh_update_current_desktop();
1963
1964     startup_sequence_rename_workspace(old_name_copy, new_name);
1965     free(old_name_copy);
1966 }
1967
1968 /*
1969  * Implementation of 'bar mode dock|hide|invisible|toggle [<bar_id>]'
1970  *
1971  */
1972 bool cmd_bar_mode(const char *bar_mode, const char *bar_id) {
1973     int mode = M_DOCK;
1974     bool toggle = false;
1975     if (strcmp(bar_mode, "dock") == 0)
1976         mode = M_DOCK;
1977     else if (strcmp(bar_mode, "hide") == 0)
1978         mode = M_HIDE;
1979     else if (strcmp(bar_mode, "invisible") == 0)
1980         mode = M_INVISIBLE;
1981     else if (strcmp(bar_mode, "toggle") == 0)
1982         toggle = true;
1983     else {
1984         ELOG("Unknown bar mode \"%s\", this is a mismatch between code and parser spec.\n", bar_mode);
1985         return false;
1986     }
1987
1988     bool changed_sth = false;
1989     Barconfig *current = NULL;
1990     TAILQ_FOREACH(current, &barconfigs, configs) {
1991         if (bar_id && strcmp(current->id, bar_id) != 0)
1992             continue;
1993
1994         if (toggle)
1995             mode = (current->mode + 1) % 2;
1996
1997         DLOG("Changing bar mode of bar_id '%s' to '%s (%d)'\n", current->id, bar_mode, mode);
1998         current->mode = mode;
1999         changed_sth = true;
2000
2001         if (bar_id)
2002             break;
2003     }
2004
2005     if (bar_id && !changed_sth) {
2006         DLOG("Changing bar mode of bar_id %s failed, bar_id not found.\n", bar_id);
2007         return false;
2008     }
2009
2010     return true;
2011 }
2012
2013 /*
2014  * Implementation of 'bar hidden_state hide|show|toggle [<bar_id>]'
2015  *
2016  */
2017 bool cmd_bar_hidden_state(const char *bar_hidden_state, const char *bar_id) {
2018     int hidden_state = S_SHOW;
2019     bool toggle = false;
2020     if (strcmp(bar_hidden_state, "hide") == 0)
2021         hidden_state = S_HIDE;
2022     else if (strcmp(bar_hidden_state, "show") == 0)
2023         hidden_state = S_SHOW;
2024     else if (strcmp(bar_hidden_state, "toggle") == 0)
2025         toggle = true;
2026     else {
2027         ELOG("Unknown bar state \"%s\", this is a mismatch between code and parser spec.\n", bar_hidden_state);
2028         return false;
2029     }
2030
2031     bool changed_sth = false;
2032     Barconfig *current = NULL;
2033     TAILQ_FOREACH(current, &barconfigs, configs) {
2034         if (bar_id && strcmp(current->id, bar_id) != 0)
2035             continue;
2036
2037         if (toggle)
2038             hidden_state = (current->hidden_state + 1) % 2;
2039
2040         DLOG("Changing bar hidden_state of bar_id '%s' to '%s (%d)'\n", current->id, bar_hidden_state, hidden_state);
2041         current->hidden_state = hidden_state;
2042         changed_sth = true;
2043
2044         if (bar_id)
2045             break;
2046     }
2047
2048     if (bar_id && !changed_sth) {
2049         DLOG("Changing bar hidden_state of bar_id %s failed, bar_id not found.\n", bar_id);
2050         return false;
2051     }
2052
2053     return true;
2054 }
2055
2056 /*
2057  * Implementation of 'bar (hidden_state hide|show|toggle)|(mode dock|hide|invisible|toggle) [<bar_id>]'
2058  *
2059  */
2060 void cmd_bar(I3_CMD, const char *bar_type, const char *bar_value, const char *bar_id) {
2061     bool ret;
2062     if (strcmp(bar_type, "mode") == 0)
2063         ret = cmd_bar_mode(bar_value, bar_id);
2064     else if (strcmp(bar_type, "hidden_state") == 0)
2065         ret = cmd_bar_hidden_state(bar_value, bar_id);
2066     else {
2067         ELOG("Unknown bar option type \"%s\", this is a mismatch between code and parser spec.\n", bar_type);
2068         ret = false;
2069     }
2070
2071     ysuccess(ret);
2072     if (!ret)
2073         return;
2074
2075     update_barconfig();
2076 }
2077
2078 /*
2079  * Implementation of 'shmlog <size>|toggle|on|off'
2080  *
2081  */
2082 void cmd_shmlog(I3_CMD, const char *argument) {
2083     if (!strcmp(argument, "toggle"))
2084         /* Toggle shm log, if size is not 0. If it is 0, set it to default. */
2085         shmlog_size = shmlog_size ? -shmlog_size : default_shmlog_size;
2086     else if (!strcmp(argument, "on"))
2087         shmlog_size = default_shmlog_size;
2088     else if (!strcmp(argument, "off"))
2089         shmlog_size = 0;
2090     else {
2091         /* If shm logging now, restart logging with the new size. */
2092         if (shmlog_size > 0) {
2093             shmlog_size = 0;
2094             LOG("Restarting shm logging...\n");
2095             init_logging();
2096         }
2097         shmlog_size = atoi(argument);
2098         /* Make a weakly attempt at ensuring the argument is valid. */
2099         if (shmlog_size <= 0)
2100             shmlog_size = default_shmlog_size;
2101     }
2102     LOG("%s shm logging\n", shmlog_size > 0 ? "Enabling" : "Disabling");
2103     init_logging();
2104     update_shmlog_atom();
2105     // XXX: default reply for now, make this a better reply
2106     ysuccess(true);
2107 }
2108
2109 /*
2110  * Implementation of 'debuglog toggle|on|off'
2111  *
2112  */
2113 void cmd_debuglog(I3_CMD, const char *argument) {
2114     bool logging = get_debug_logging();
2115     if (!strcmp(argument, "toggle")) {
2116         LOG("%s debug logging\n", logging ? "Disabling" : "Enabling");
2117         set_debug_logging(!logging);
2118     } else if (!strcmp(argument, "on") && !logging) {
2119         LOG("Enabling debug logging\n");
2120         set_debug_logging(true);
2121     } else if (!strcmp(argument, "off") && logging) {
2122         LOG("Disabling debug logging\n");
2123         set_debug_logging(false);
2124     }
2125     // XXX: default reply for now, make this a better reply
2126     ysuccess(true);
2127 }