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

   1 /*
   2  * vim:ts=4:sw=4:expandtab
   3  *
   4  * i3 - an improved dynamic tiling window manager
   5  * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
   6  *
   7  * commands.c: all command functions (see commands_parser.c)
   8  *
   9  */
  10 #include "all.h"
  11
  12 #include <stdint.h>
  13 #include <float.h>
  14 #include <stdarg.h>
  15
  16 #ifdef I3_ASAN_ENABLED
  17 #include <sanitizer/lsan_interface.h>
  18 #endif
  19
  20 #include "shmlog.h"
  21
  22 // Macros to make the YAJL API a bit easier to use.
  23 #define y(x, ...) (cmd_output->json_gen != NULL ? yajl_gen_##x(cmd_output->json_gen, ##__VA_ARGS__) : 0)
  24 #define ystr(str) (cmd_output->json_gen != NULL ? yajl_gen_string(cmd_output->json_gen, (unsigned char *)str, strlen(str)) : 0)
  25 #define ysuccess(success)                   \
  26     do {                                    \
  27         if (cmd_output->json_gen != NULL) { \
  28             y(map_open);                    \
  29             ystr("success");                \
  30             y(bool, success);               \
  31             y(map_close);                   \
  32         }                                   \
  33     } while (0)
  34 #define yerror(format, ...)                             \
  35     do {                                                \
  36         if (cmd_output->json_gen != NULL) {             \
  37             char *message;                              \
  38             sasprintf(&message, format, ##__VA_ARGS__); \
  39             y(map_open);                                \
  40             ystr("success");                            \
  41             y(bool, false);                             \
  42             ystr("error");                              \
  43             ystr(message);                              \
  44             y(map_close);                               \
  45             free(message);                              \
  46         }                                               \
  47     } while (0)
  48
  49 /** If an error occurred during parsing of the criteria, we want to exit instead
  50  * of relying on fallback behavior. See #2091. */
  51 #define HANDLE_INVALID_MATCH                                   \
  52     do {                                                       \
  53         if (current_match->error != NULL) {                    \
  54             yerror("Invalid match: %s", current_match->error); \
  55             return;                                            \
  56         }                                                      \
  57     } while (0)
  58
  59 /** When the command did not include match criteria (!), we use the currently
  60  * focused container. Do not confuse this case with a command which included
  61  * criteria but which did not match any windows. This macro has to be called in
  62  * every command.
  63  */
  64 #define HANDLE_EMPTY_MATCH                              \
  65     do {                                                \
  66         HANDLE_INVALID_MATCH;                           \
  67                                                         \
  68         if (match_is_empty(current_match)) {            \
  69             while (!TAILQ_EMPTY(&owindows)) {           \
  70                 owindow *ow = TAILQ_FIRST(&owindows);   \
  71                 TAILQ_REMOVE(&owindows, ow, owindows);  \
  72                 free(ow);                               \
  73             }                                           \
  74             owindow *ow = smalloc(sizeof(owindow));     \
  75             ow->con = focused;                          \
  76             TAILQ_INIT(&owindows);                      \
  77             TAILQ_INSERT_TAIL(&owindows, ow, owindows); \
  78         }                                               \
  79     } while (0)
  80
  81 /*
  82  * Returns true if a is definitely greater than b (using the given epsilon)
  83  *
  84  */
  85 static bool definitelyGreaterThan(float a, float b, float epsilon) {
  86     return (a - b) > ((fabs(a) < fabs(b) ? fabs(b) : fabs(a)) * epsilon);
  87 }
  88
  89 /*
  90  * Checks whether we switched to a new workspace and returns false in that case,
  91  * signaling that further workspace switching should be done by the calling function
  92  * If not, calls workspace_back_and_forth() if workspace_auto_back_and_forth is set
  93  * and return true, signaling that no further workspace switching should occur in the calling function.
  94  *
  95  */
  96 static bool maybe_back_and_forth(struct CommandResultIR *cmd_output, const char *name) {
  97     Con *ws = con_get_workspace(focused);
  98
  99     /* If we switched to a different workspace, do nothing */
 100     if (strcmp(ws->name, name) != 0)
 101         return false;
 102
 103     DLOG("This workspace is already focused.\n");
 104     if (config.workspace_auto_back_and_forth) {
 105         workspace_back_and_forth();
 106         cmd_output->needs_tree_render = true;
 107     }
 108     return true;
 109 }
 110
 111 /*
 112  * Return the passed workspace unless it is the current one and auto back and
 113  * forth is enabled, in which case the back_and_forth workspace is returned.
 114  */
 115 static Con *maybe_auto_back_and_forth_workspace(Con *workspace) {
 116     Con *current, *baf;
 117
 118     if (!config.workspace_auto_back_and_forth)
 119         return workspace;
 120
 121     current = con_get_workspace(focused);
 122
 123     if (current == workspace) {
 124         baf = workspace_back_and_forth_get();
 125         if (baf != NULL) {
 126             DLOG("Substituting workspace with back_and_forth, as it is focused.\n");
 127             return baf;
 128         }
 129     }
 130
 131     return workspace;
 132 }
 133
 134 /*******************************************************************************
 135  * Criteria functions.
 136  ******************************************************************************/
 137
 138 /*
 139  * Helper data structure for an operation window (window on which the operation
 140  * will be performed). Used to build the TAILQ owindows.
 141  *
 142  */
 143 typedef struct owindow {
 144     Con *con;
 145
 146     TAILQ_ENTRY(owindow)
 147     owindows;
 148 } owindow;
 149
 150 typedef TAILQ_HEAD(owindows_head, owindow) owindows_head;
 151
 152 static owindows_head owindows;
 153
 154 /*
 155  * Initializes the specified 'Match' data structure and the initial state of
 156  * commands.c for matching target windows of a command.
 157  *
 158  */
 159 void cmd_criteria_init(I3_CMD) {
 160     Con *con;
 161     owindow *ow;
 162
 163     DLOG("Initializing criteria, current_match = %p\n", current_match);
 164     match_free(current_match);
 165     match_init(current_match);
 166     while (!TAILQ_EMPTY(&owindows)) {
 167         ow = TAILQ_FIRST(&owindows);
 168         TAILQ_REMOVE(&owindows, ow, owindows);
 169         free(ow);
 170     }
 171     TAILQ_INIT(&owindows);
 172     /* copy all_cons */
 173     TAILQ_FOREACH(con, &all_cons, all_cons) {
 174         ow = smalloc(sizeof(owindow));
 175         ow->con = con;
 176         TAILQ_INSERT_TAIL(&owindows, ow, owindows);
 177     }
 178 }
 179
 180 /*
 181  * A match specification just finished (the closing square bracket was found),
 182  * so we filter the list of owindows.
 183  *
 184  */
 185 void cmd_criteria_match_windows(I3_CMD) {
 186     owindow *next, *current;
 187
 188     DLOG("match specification finished, matching...\n");
 189     /* copy the old list head to iterate through it and start with a fresh
 190      * list which will contain only matching windows */
 191     struct owindows_head old = owindows;
 192     TAILQ_INIT(&owindows);
 193     for (next = TAILQ_FIRST(&old); next != TAILQ_END(&old);) {
 194         /* make a copy of the next pointer and advance the pointer to the
 195          * next element as we are going to invalidate the element’s
 196          * next/prev pointers by calling TAILQ_INSERT_TAIL later */
 197         current = next;
 198         next = TAILQ_NEXT(next, owindows);
 199
 200         DLOG("checking if con %p / %s matches\n", current->con, current->con->name);
 201
 202         /* We use this flag to prevent matching on window-less containers if
 203          * only window-specific criteria were specified. */
 204         bool accept_match = false;
 205
 206         if (current_match->con_id != NULL) {
 207             accept_match = true;
 208
 209             if (current_match->con_id == current->con) {
 210                 DLOG("con_id matched.\n");
 211             } else {
 212                 DLOG("con_id does not match.\n");
 213                 FREE(current);
 214                 continue;
 215             }
 216         }
 217
 218         if (current_match->mark != NULL && !TAILQ_EMPTY(&(current->con->marks_head))) {
 219             accept_match = true;
 220             bool matched_by_mark = false;
 221
 222             mark_t *mark;
 223             TAILQ_FOREACH(mark, &(current->con->marks_head), marks) {
 224                 if (!regex_matches(current_match->mark, mark->name))
 225                     continue;
 226
 227                 DLOG("match by mark\n");
 228                 matched_by_mark = true;
 229                 break;
 230             }
 231
 232             if (!matched_by_mark) {
 233                 DLOG("mark does not match.\n");
 234                 FREE(current);
 235                 continue;
 236             }
 237         }
 238
 239         if (current->con->window != NULL) {
 240             if (match_matches_window(current_match, current->con->window)) {
 241                 DLOG("matches window!\n");
 242                 accept_match = true;
 243             } else {
 244                 DLOG("doesn't match\n");
 245                 FREE(current);
 246                 continue;
 247             }
 248         }
 249
 250         if (accept_match) {
 251             TAILQ_INSERT_TAIL(&owindows, current, owindows);
 252         } else {
 253             FREE(current);
 254             continue;
 255         }
 256     }
 257
 258     TAILQ_FOREACH(current, &owindows, owindows) {
 259         DLOG("matching: %p / %s\n", current->con, current->con->name);
 260     }
 261 }
 262
 263 /*
 264  * Interprets a ctype=cvalue pair and adds it to the current match
 265  * specification.
 266  *
 267  */
 268 void cmd_criteria_add(I3_CMD, const char *ctype, const char *cvalue) {
 269     match_parse_property(current_match, ctype, cvalue);
 270 }
 271
 272 /*
 273  * Implementation of 'move [window|container] [to] workspace
 274  * next|prev|next_on_output|prev_on_output|current'.
 275  *
 276  */
 277 void cmd_move_con_to_workspace(I3_CMD, const char *which) {
 278     owindow *current;
 279
 280     DLOG("which=%s\n", which);
 281
 282     /* We have nothing to move:
 283      *  when criteria was specified but didn't match any window or
 284      *  when criteria wasn't specified and we don't have any window focused. */
 285     if ((!match_is_empty(current_match) && TAILQ_EMPTY(&owindows)) ||
 286         (match_is_empty(current_match) && focused->type == CT_WORKSPACE &&
 287          !con_has_children(focused))) {
 288         ysuccess(false);
 289         return;
 290     }
 291
 292     HANDLE_EMPTY_MATCH;
 293
 294     /* get the workspace */
 295     Con *ws;
 296     if (strcmp(which, "next") == 0)
 297         ws = workspace_next();
 298     else if (strcmp(which, "prev") == 0)
 299         ws = workspace_prev();
 300     else if (strcmp(which, "next_on_output") == 0)
 301         ws = workspace_next_on_output();
 302     else if (strcmp(which, "prev_on_output") == 0)
 303         ws = workspace_prev_on_output();
 304     else if (strcmp(which, "current") == 0)
 305         ws = con_get_workspace(focused);
 306     else {
 307         ELOG("BUG: called with which=%s\n", which);
 308         ysuccess(false);
 309         return;
 310     }
 311
 312     TAILQ_FOREACH(current, &owindows, owindows) {
 313         DLOG("matching: %p / %s\n", current->con, current->con->name);
 314         con_move_to_workspace(current->con, ws, true, false, false);
 315     }
 316
 317     cmd_output->needs_tree_render = true;
 318     // XXX: default reply for now, make this a better reply
 319     ysuccess(true);
 320 }
 321
 322 /**
 323  * Implementation of 'move [window|container] [to] workspace back_and_forth'.
 324  *
 325  */
 326 void cmd_move_con_to_workspace_back_and_forth(I3_CMD) {
 327     owindow *current;
 328     Con *ws;
 329
 330     ws = workspace_back_and_forth_get();
 331
 332     if (ws == NULL) {
 333         yerror("No workspace was previously active.");
 334         return;
 335     }
 336
 337     HANDLE_EMPTY_MATCH;
 338
 339     TAILQ_FOREACH(current, &owindows, owindows) {
 340         DLOG("matching: %p / %s\n", current->con, current->con->name);
 341         con_move_to_workspace(current->con, ws, true, false, false);
 342     }
 343
 344     cmd_output->needs_tree_render = true;
 345     // XXX: default reply for now, make this a better reply
 346     ysuccess(true);
 347 }
 348
 349 /*
 350  * Implementation of 'move [--no-auto-back-and-forth] [window|container] [to] workspace <name>'.
 351  *
 352  */
 353 void cmd_move_con_to_workspace_name(I3_CMD, const char *name, const char *_no_auto_back_and_forth) {
 354     if (strncasecmp(name, "__", strlen("__")) == 0) {
 355         LOG("You cannot move containers to i3-internal workspaces (\"%s\").\n", name);
 356         ysuccess(false);
 357         return;
 358     }
 359
 360     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 361     owindow *current;
 362
 363     /* We have nothing to move:
 364      *  when criteria was specified but didn't match any window or
 365      *  when criteria wasn't specified and we don't have any window focused. */
 366     if (!match_is_empty(current_match) && TAILQ_EMPTY(&owindows)) {
 367         ELOG("No windows match your criteria, cannot move.\n");
 368         ysuccess(false);
 369         return;
 370     } else if (match_is_empty(current_match) && focused->type == CT_WORKSPACE &&
 371                !con_has_children(focused)) {
 372         ysuccess(false);
 373         return;
 374     }
 375
 376     LOG("should move window to workspace %s\n", name);
 377     /* get the workspace */
 378     Con *ws = workspace_get(name, NULL);
 379
 380     if (!no_auto_back_and_forth)
 381         ws = maybe_auto_back_and_forth_workspace(ws);
 382
 383     HANDLE_EMPTY_MATCH;
 384
 385     TAILQ_FOREACH(current, &owindows, owindows) {
 386         DLOG("matching: %p / %s\n", current->con, current->con->name);
 387         con_move_to_workspace(current->con, ws, true, false, false);
 388     }
 389
 390     cmd_output->needs_tree_render = true;
 391     // XXX: default reply for now, make this a better reply
 392     ysuccess(true);
 393 }
 394
 395 /*
 396  * Implementation of 'move [--no-auto-back-and-forth] [window|container] [to] workspace number <name>'.
 397  *
 398  */
 399 void cmd_move_con_to_workspace_number(I3_CMD, const char *which, const char *_no_auto_back_and_forth) {
 400     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 401     owindow *current;
 402
 403     /* We have nothing to move:
 404      *  when criteria was specified but didn't match any window or
 405      *  when criteria wasn't specified and we don't have any window focused. */
 406     if ((!match_is_empty(current_match) && TAILQ_EMPTY(&owindows)) ||
 407         (match_is_empty(current_match) && focused->type == CT_WORKSPACE &&
 408          !con_has_children(focused))) {
 409         ysuccess(false);
 410         return;
 411     }
 412
 413     LOG("should move window to workspace %s\n", which);
 414     /* get the workspace */
 415     Con *output, *workspace = NULL;
 416
 417     long parsed_num = ws_name_to_number(which);
 418
 419     if (parsed_num == -1) {
 420         LOG("Could not parse initial part of \"%s\" as a number.\n", which);
 421         yerror("Could not parse number \"%s\"", which);
 422         return;
 423     }
 424
 425     TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
 426     GREP_FIRST(workspace, output_get_content(output),
 427                child->num == parsed_num);
 428
 429     if (!workspace) {
 430         workspace = workspace_get(which, NULL);
 431     }
 432
 433     if (!no_auto_back_and_forth)
 434         workspace = maybe_auto_back_and_forth_workspace(workspace);
 435
 436     HANDLE_EMPTY_MATCH;
 437
 438     TAILQ_FOREACH(current, &owindows, owindows) {
 439         DLOG("matching: %p / %s\n", current->con, current->con->name);
 440         con_move_to_workspace(current->con, workspace, true, false, false);
 441     }
 442
 443     cmd_output->needs_tree_render = true;
 444     // XXX: default reply for now, make this a better reply
 445     ysuccess(true);
 446 }
 447
 448 static void cmd_resize_floating(I3_CMD, const char *way, const char *direction, Con *floating_con, int px) {
 449     LOG("floating resize\n");
 450     Rect old_rect = floating_con->rect;
 451     Con *focused_con = con_descend_focused(floating_con);
 452
 453     /* ensure that resize will take place even if pixel increment is smaller than
 454      * height increment or width increment.
 455      * fixes #1011 */
 456     const i3Window *window = focused_con->window;
 457     if (window != NULL) {
 458         if (strcmp(direction, "up") == 0 || strcmp(direction, "down") == 0 ||
 459             strcmp(direction, "height") == 0) {
 460             if (px < 0)
 461                 px = (-px < window->height_increment) ? -window->height_increment : px;
 462             else
 463                 px = (px < window->height_increment) ? window->height_increment : px;
 464         } else if (strcmp(direction, "left") == 0 || strcmp(direction, "right") == 0) {
 465             if (px < 0)
 466                 px = (-px < window->width_increment) ? -window->width_increment : px;
 467             else
 468                 px = (px < window->width_increment) ? window->width_increment : px;
 469         }
 470     }
 471
 472     if (strcmp(direction, "up") == 0) {
 473         floating_con->rect.height += px;
 474     } else if (strcmp(direction, "down") == 0 || strcmp(direction, "height") == 0) {
 475         floating_con->rect.height += px;
 476     } else if (strcmp(direction, "left") == 0) {
 477         floating_con->rect.width += px;
 478     } else {
 479         floating_con->rect.width += px;
 480     }
 481
 482     floating_check_size(floating_con);
 483
 484     /* Did we actually resize anything or did the size constraints prevent us?
 485      * If we could not resize, exit now to not move the window. */
 486     if (memcmp(&old_rect, &(floating_con->rect), sizeof(Rect)) == 0)
 487         return;
 488
 489     if (strcmp(direction, "up") == 0) {
 490         floating_con->rect.y -= (floating_con->rect.height - old_rect.height);
 491     } else if (strcmp(direction, "left") == 0) {
 492         floating_con->rect.x -= (floating_con->rect.width - old_rect.width);
 493     }
 494
 495     /* If this is a scratchpad window, don't auto center it from now on. */
 496     if (floating_con->scratchpad_state == SCRATCHPAD_FRESH)
 497         floating_con->scratchpad_state = SCRATCHPAD_CHANGED;
 498 }
 499
 500 static bool cmd_resize_tiling_direction(I3_CMD, Con *current, const char *way, const char *direction, int ppt) {
 501     LOG("tiling resize\n");
 502     Con *second = NULL;
 503     Con *first = current;
 504     direction_t search_direction;
 505     if (!strcmp(direction, "left"))
 506         search_direction = D_LEFT;
 507     else if (!strcmp(direction, "right"))
 508         search_direction = D_RIGHT;
 509     else if (!strcmp(direction, "up"))
 510         search_direction = D_UP;
 511     else
 512         search_direction = D_DOWN;
 513
 514     bool res = resize_find_tiling_participants(&first, &second, search_direction);
 515     if (!res) {
 516         LOG("No second container in this direction found.\n");
 517         ysuccess(false);
 518         return false;
 519     }
 520
 521     /* get the default percentage */
 522     int children = con_num_children(first->parent);
 523     LOG("ins. %d children\n", children);
 524     double percentage = 1.0 / children;
 525     LOG("default percentage = %f\n", percentage);
 526
 527     /* resize */
 528     LOG("second->percent = %f\n", second->percent);
 529     LOG("first->percent before = %f\n", first->percent);
 530     if (first->percent == 0.0)
 531         first->percent = percentage;
 532     if (second->percent == 0.0)
 533         second->percent = percentage;
 534     double new_first_percent = first->percent + ((double)ppt / 100.0);
 535     double new_second_percent = second->percent - ((double)ppt / 100.0);
 536     LOG("new_first_percent = %f\n", new_first_percent);
 537     LOG("new_second_percent = %f\n", new_second_percent);
 538     /* Ensure that the new percentages are positive and greater than
 539      * 0.05 to have a reasonable minimum size. */
 540     if (definitelyGreaterThan(new_first_percent, 0.05, DBL_EPSILON) &&
 541         definitelyGreaterThan(new_second_percent, 0.05, DBL_EPSILON)) {
 542         first->percent += ((double)ppt / 100.0);
 543         second->percent -= ((double)ppt / 100.0);
 544         LOG("first->percent after = %f\n", first->percent);
 545         LOG("second->percent after = %f\n", second->percent);
 546     } else {
 547         LOG("Not resizing, already at minimum size\n");
 548     }
 549
 550     return true;
 551 }
 552
 553 static bool cmd_resize_tiling_width_height(I3_CMD, Con *current, const char *way, const char *direction, int ppt) {
 554     LOG("width/height resize\n");
 555     /* get the appropriate current container (skip stacked/tabbed cons) */
 556     while (current->parent->layout == L_STACKED ||
 557            current->parent->layout == L_TABBED)
 558         current = current->parent;
 559
 560     /* Then further go up until we find one with the matching orientation. */
 561     orientation_t search_orientation =
 562         (strcmp(direction, "width") == 0 ? HORIZ : VERT);
 563
 564     while (current->type != CT_WORKSPACE &&
 565            current->type != CT_FLOATING_CON &&
 566            (con_orientation(current->parent) != search_orientation || con_num_children(current->parent) == 1))
 567         current = current->parent;
 568
 569     /* get the default percentage */
 570     int children = con_num_children(current->parent);
 571     LOG("ins. %d children\n", children);
 572     double percentage = 1.0 / children;
 573     LOG("default percentage = %f\n", percentage);
 574
 575     orientation_t orientation = con_orientation(current->parent);
 576
 577     if ((orientation == HORIZ &&
 578          strcmp(direction, "height") == 0) ||
 579         (orientation == VERT &&
 580          strcmp(direction, "width") == 0)) {
 581         LOG("You cannot resize in that direction. Your focus is in a %s split container currently.\n",
 582             (orientation == HORIZ ? "horizontal" : "vertical"));
 583         ysuccess(false);
 584         return false;
 585     }
 586
 587     if (children == 1) {
 588         LOG("This is the only container, cannot resize.\n");
 589         ysuccess(false);
 590         return false;
 591     }
 592
 593     /* Ensure all the other children have a percentage set. */
 594     Con *child;
 595     TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
 596         LOG("child->percent = %f (child %p)\n", child->percent, child);
 597         if (child->percent == 0.0)
 598             child->percent = percentage;
 599     }
 600
 601     double new_current_percent = current->percent + ((double)ppt / 100.0);
 602     double subtract_percent = ((double)ppt / 100.0) / (children - 1);
 603     LOG("new_current_percent = %f\n", new_current_percent);
 604     LOG("subtract_percent = %f\n", subtract_percent);
 605     /* Ensure that the new percentages are positive and greater than
 606      * 0.05 to have a reasonable minimum size. */
 607     TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
 608         if (child == current)
 609             continue;
 610         if (!definitelyGreaterThan(child->percent - subtract_percent, 0.05, DBL_EPSILON)) {
 611             LOG("Not resizing, already at minimum size (child %p would end up with a size of %.f\n", child, child->percent - subtract_percent);
 612             ysuccess(false);
 613             return false;
 614         }
 615     }
 616     if (!definitelyGreaterThan(new_current_percent, 0.05, DBL_EPSILON)) {
 617         LOG("Not resizing, already at minimum size\n");
 618         ysuccess(false);
 619         return false;
 620     }
 621
 622     current->percent += ((double)ppt / 100.0);
 623     LOG("current->percent after = %f\n", current->percent);
 624
 625     TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
 626         if (child == current)
 627             continue;
 628         child->percent -= subtract_percent;
 629         LOG("child->percent after (%p) = %f\n", child, child->percent);
 630     }
 631
 632     return true;
 633 }
 634
 635 /*
 636  * Implementation of 'resize grow|shrink <direction> [<px> px] [or <ppt> ppt]'.
 637  *
 638  */
 639 void cmd_resize(I3_CMD, const char *way, const char *direction, long resize_px, long resize_ppt) {
 640     DLOG("resizing in way %s, direction %s, px %ld or ppt %ld\n", way, direction, resize_px, resize_ppt);
 641     if (strcmp(way, "shrink") == 0) {
 642         resize_px *= -1;
 643         resize_ppt *= -1;
 644     }
 645
 646     HANDLE_EMPTY_MATCH;
 647
 648     owindow *current;
 649     TAILQ_FOREACH(current, &owindows, owindows) {
 650         /* Don't handle dock windows (issue #1201) */
 651         if (current->con->window && current->con->window->dock) {
 652             DLOG("This is a dock window. Not resizing (con = %p)\n)", current->con);
 653             continue;
 654         }
 655
 656         Con *floating_con;
 657         if ((floating_con = con_inside_floating(current->con))) {
 658             cmd_resize_floating(current_match, cmd_output, way, direction, floating_con, resize_px);
 659         } else {
 660             if (strcmp(direction, "width") == 0 ||
 661                 strcmp(direction, "height") == 0) {
 662                 if (!cmd_resize_tiling_width_height(current_match, cmd_output,
 663                                                     current->con, way, direction, resize_ppt))
 664                     return;
 665             } else {
 666                 if (!cmd_resize_tiling_direction(current_match, cmd_output,
 667                                                  current->con, way, direction, resize_ppt))
 668                     return;
 669             }
 670         }
 671     }
 672
 673     cmd_output->needs_tree_render = true;
 674     // XXX: default reply for now, make this a better reply
 675     ysuccess(true);
 676 }
 677
 678 /*
 679  * Implementation of 'resize set <px> [px] <px> [px]'.
 680  *
 681  */
 682 void cmd_resize_set(I3_CMD, long cwidth, long cheight) {
 683     DLOG("resizing to %ldx%ld px\n", cwidth, cheight);
 684     if (cwidth <= 0 || cheight <= 0) {
 685         ELOG("Resize failed: dimensions cannot be negative (was %ldx%ld)\n", cwidth, cheight);
 686         return;
 687     }
 688
 689     HANDLE_EMPTY_MATCH;
 690
 691     owindow *current;
 692     TAILQ_FOREACH(current, &owindows, owindows) {
 693         Con *floating_con;
 694         if ((floating_con = con_inside_floating(current->con))) {
 695             floating_resize(floating_con, cwidth, cheight);
 696         } else {
 697             ELOG("Resize failed: %p not a floating container\n", current->con);
 698         }
 699     }
 700
 701     cmd_output->needs_tree_render = true;
 702     // XXX: default reply for now, make this a better reply
 703     ysuccess(true);
 704 }
 705
 706 /*
 707  * Implementation of 'border normal|pixel [<n>]', 'border none|1pixel|toggle'.
 708  *
 709  */
 710 void cmd_border(I3_CMD, const char *border_style_str, long border_width) {
 711     DLOG("border style should be changed to %s with border width %ld\n", border_style_str, border_width);
 712     owindow *current;
 713
 714     HANDLE_EMPTY_MATCH;
 715
 716     TAILQ_FOREACH(current, &owindows, owindows) {
 717         DLOG("matching: %p / %s\n", current->con, current->con->name);
 718         int border_style = current->con->border_style;
 719         int con_border_width = border_width;
 720
 721         if (strcmp(border_style_str, "toggle") == 0) {
 722             border_style++;
 723             border_style %= 3;
 724             if (border_style == BS_NORMAL)
 725                 con_border_width = 2;
 726             else if (border_style == BS_NONE)
 727                 con_border_width = 0;
 728             else if (border_style == BS_PIXEL)
 729                 con_border_width = 1;
 730         } else {
 731             if (strcmp(border_style_str, "normal") == 0) {
 732                 border_style = BS_NORMAL;
 733             } else if (strcmp(border_style_str, "pixel") == 0) {
 734                 border_style = BS_PIXEL;
 735             } else if (strcmp(border_style_str, "1pixel") == 0) {
 736                 border_style = BS_PIXEL;
 737                 con_border_width = 1;
 738             } else if (strcmp(border_style_str, "none") == 0) {
 739                 border_style = BS_NONE;
 740             } else {
 741                 ELOG("BUG: called with border_style=%s\n", border_style_str);
 742                 ysuccess(false);
 743                 return;
 744             }
 745         }
 746
 747         con_set_border_style(current->con, border_style, logical_px(con_border_width));
 748     }
 749
 750     cmd_output->needs_tree_render = true;
 751     // XXX: default reply for now, make this a better reply
 752     ysuccess(true);
 753 }
 754
 755 /*
 756  * Implementation of 'nop <comment>'.
 757  *
 758  */
 759 void cmd_nop(I3_CMD, const char *comment) {
 760     LOG("-------------------------------------------------\n");
 761     LOG("  NOP: %s\n", comment);
 762     LOG("-------------------------------------------------\n");
 763 }
 764
 765 /*
 766  * Implementation of 'append_layout <path>'.
 767  *
 768  */
 769 void cmd_append_layout(I3_CMD, const char *cpath) {
 770     char *path = sstrdup(cpath);
 771     LOG("Appending layout \"%s\"\n", path);
 772
 773     /* Make sure we allow paths like '~/.i3/layout.json' */
 774     path = resolve_tilde(path);
 775
 776     char *buf = NULL;
 777     ssize_t len;
 778     if ((len = slurp(path, &buf)) < 0) {
 779         /* slurp already logged an error. */
 780         goto out;
 781     }
 782
 783     if (!json_validate(buf, len)) {
 784         ELOG("Could not parse \"%s\" as JSON, not loading.\n", path);
 785         yerror("Could not parse \"%s\" as JSON.", path);
 786         goto out;
 787     }
 788
 789     json_content_t content = json_determine_content(buf, len);
 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         goto out;
 795     }
 796
 797     Con *parent = focused;
 798     if (content == JSON_CONTENT_WORKSPACE) {
 799         parent = output_get_content(con_get_output(parent));
 800     } else {
 801         /* We need to append the layout to a split container, since a leaf
 802          * container must not have any children (by definition).
 803          * Note that we explicitly check for workspaces, since they are okay for
 804          * this purpose, but con_accepts_window() returns false for workspaces. */
 805         while (parent->type != CT_WORKSPACE && !con_accepts_window(parent))
 806             parent = parent->parent;
 807     }
 808     DLOG("Appending to parent=%p instead of focused=%p\n", parent, focused);
 809     char *errormsg = NULL;
 810     tree_append_json(parent, buf, len, &errormsg);
 811     if (errormsg != NULL) {
 812         yerror(errormsg);
 813         free(errormsg);
 814         /* Note that we continue executing since tree_append_json() has
 815          * side-effects — user-provided layouts can be partly valid, partly
 816          * invalid, leading to half of the placeholder containers being
 817          * created. */
 818     } else {
 819         ysuccess(true);
 820     }
 821
 822     // XXX: This is a bit of a kludge. Theoretically, render_con(parent,
 823     // false); should be enough, but when sending 'workspace 4; append_layout
 824     // /tmp/foo.json', the needs_tree_render == true of the workspace command
 825     // is not executed yet and will be batched with append_layout’s
 826     // needs_tree_render after the parser finished. We should check if that is
 827     // necessary at all.
 828     render_con(croot, false);
 829
 830     restore_open_placeholder_windows(parent);
 831
 832     if (content == JSON_CONTENT_WORKSPACE)
 833         ipc_send_workspace_event("restored", parent, NULL);
 834
 835     cmd_output->needs_tree_render = true;
 836 out:
 837     free(path);
 838     free(buf);
 839 }
 840
 841 /*
 842  * Implementation of 'workspace next|prev|next_on_output|prev_on_output'.
 843  *
 844  */
 845 void cmd_workspace(I3_CMD, const char *which) {
 846     Con *ws;
 847
 848     DLOG("which=%s\n", which);
 849
 850     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 851         LOG("Cannot switch workspace while in global fullscreen\n");
 852         ysuccess(false);
 853         return;
 854     }
 855
 856     if (strcmp(which, "next") == 0)
 857         ws = workspace_next();
 858     else if (strcmp(which, "prev") == 0)
 859         ws = workspace_prev();
 860     else if (strcmp(which, "next_on_output") == 0)
 861         ws = workspace_next_on_output();
 862     else if (strcmp(which, "prev_on_output") == 0)
 863         ws = workspace_prev_on_output();
 864     else {
 865         ELOG("BUG: called with which=%s\n", which);
 866         ysuccess(false);
 867         return;
 868     }
 869
 870     workspace_show(ws);
 871
 872     cmd_output->needs_tree_render = true;
 873     // XXX: default reply for now, make this a better reply
 874     ysuccess(true);
 875 }
 876
 877 /*
 878  * Implementation of 'workspace [--no-auto-back-and-forth] number <name>'
 879  *
 880  */
 881 void cmd_workspace_number(I3_CMD, const char *which, const char *_no_auto_back_and_forth) {
 882     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 883     Con *output, *workspace = NULL;
 884
 885     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 886         LOG("Cannot switch workspace while in global fullscreen\n");
 887         ysuccess(false);
 888         return;
 889     }
 890
 891     long parsed_num = ws_name_to_number(which);
 892
 893     if (parsed_num == -1) {
 894         LOG("Could not parse initial part of \"%s\" as a number.\n", which);
 895         yerror("Could not parse number \"%s\"", which);
 896         return;
 897     }
 898
 899     TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
 900     GREP_FIRST(workspace, output_get_content(output),
 901                child->num == parsed_num);
 902
 903     if (!workspace) {
 904         LOG("There is no workspace with number %ld, creating a new one.\n", parsed_num);
 905         ysuccess(true);
 906         workspace_show_by_name(which);
 907         cmd_output->needs_tree_render = true;
 908         return;
 909     }
 910     if (!no_auto_back_and_forth && maybe_back_and_forth(cmd_output, workspace->name)) {
 911         ysuccess(true);
 912         return;
 913     }
 914     workspace_show(workspace);
 915
 916     cmd_output->needs_tree_render = true;
 917     // XXX: default reply for now, make this a better reply
 918     ysuccess(true);
 919 }
 920
 921 /*
 922  * Implementation of 'workspace back_and_forth'.
 923  *
 924  */
 925 void cmd_workspace_back_and_forth(I3_CMD) {
 926     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 927         LOG("Cannot switch workspace while in global fullscreen\n");
 928         ysuccess(false);
 929         return;
 930     }
 931
 932     workspace_back_and_forth();
 933
 934     cmd_output->needs_tree_render = true;
 935     // XXX: default reply for now, make this a better reply
 936     ysuccess(true);
 937 }
 938
 939 /*
 940  * Implementation of 'workspace [--no-auto-back-and-forth] <name>'
 941  *
 942  */
 943 void cmd_workspace_name(I3_CMD, const char *name, const char *_no_auto_back_and_forth) {
 944     const bool no_auto_back_and_forth = (_no_auto_back_and_forth != NULL);
 945
 946     if (strncasecmp(name, "__", strlen("__")) == 0) {
 947         LOG("You cannot switch to the i3-internal workspaces (\"%s\").\n", name);
 948         ysuccess(false);
 949         return;
 950     }
 951
 952     if (con_get_fullscreen_con(croot, CF_GLOBAL)) {
 953         LOG("Cannot switch workspace while in global fullscreen\n");
 954         ysuccess(false);
 955         return;
 956     }
 957
 958     DLOG("should switch to workspace %s\n", name);
 959     if (!no_auto_back_and_forth && maybe_back_and_forth(cmd_output, name)) {
 960         ysuccess(true);
 961         return;
 962     }
 963     workspace_show_by_name(name);
 964
 965     cmd_output->needs_tree_render = true;
 966     // XXX: default reply for now, make this a better reply
 967     ysuccess(true);
 968 }
 969
 970 /*
 971  * Implementation of 'mark [--add|--replace] [--toggle] <mark>'
 972  *
 973  */
 974 void cmd_mark(I3_CMD, const char *mark, const char *mode, const char *toggle) {
 975     HANDLE_EMPTY_MATCH;
 976
 977     owindow *current = TAILQ_FIRST(&owindows);
 978     if (current == NULL) {
 979         ysuccess(false);
 980         return;
 981     }
 982
 983     /* Marks must be unique, i.e., no two windows must have the same mark. */
 984     if (current != TAILQ_LAST(&owindows, owindows_head)) {
 985         yerror("A mark must not be put onto more than one window");
 986         return;
 987     }
 988
 989     DLOG("matching: %p / %s\n", current->con, current->con->name);
 990
 991     mark_mode_t mark_mode = (mode == NULL || strcmp(mode, "--replace") == 0) ? MM_REPLACE : MM_ADD;
 992     if (toggle != NULL) {
 993         con_mark_toggle(current->con, mark, mark_mode);
 994     } else {
 995         con_mark(current->con, mark, mark_mode);
 996     }
 997
 998     cmd_output->needs_tree_render = true;
 999     // XXX: default reply for now, make this a better reply
1000     ysuccess(true);
1001 }
1002
1003 /*
1004  * Implementation of 'unmark [mark]'
1005  *
1006  */
1007 void cmd_unmark(I3_CMD, const char *mark) {
1008     if (match_is_empty(current_match)) {
1009         con_unmark(NULL, mark);
1010     } else {
1011         owindow *current;
1012         TAILQ_FOREACH(current, &owindows, owindows) {
1013             con_unmark(current->con, mark);
1014         }
1015     }
1016
1017     cmd_output->needs_tree_render = true;
1018     // XXX: default reply for now, make this a better reply
1019     ysuccess(true);
1020 }
1021
1022 /*
1023  * Implementation of 'mode <string>'.
1024  *
1025  */
1026 void cmd_mode(I3_CMD, const char *mode) {
1027     DLOG("mode=%s\n", mode);
1028     switch_mode(mode);
1029
1030     // XXX: default reply for now, make this a better reply
1031     ysuccess(true);
1032 }
1033
1034 /*
1035  * Implementation of 'move [window|container] [to] output <str>'.
1036  *
1037  */
1038 void cmd_move_con_to_output(I3_CMD, const char *name) {
1039     DLOG("Should move window to output \"%s\".\n", name);
1040     HANDLE_EMPTY_MATCH;
1041
1042     owindow *current;
1043     bool had_error = false;
1044     TAILQ_FOREACH(current, &owindows, owindows) {
1045         DLOG("matching: %p / %s\n", current->con, current->con->name);
1046
1047         Output *current_output = get_output_for_con(current->con);
1048         assert(current_output != NULL);
1049
1050         Output *output = get_output_from_string(current_output, name);
1051         if (output == NULL) {
1052             ELOG("Could not find output \"%s\", skipping.\n", name);
1053             had_error = true;
1054             continue;
1055         }
1056
1057         Con *ws = NULL;
1058         GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1059         if (ws == NULL) {
1060             ELOG("Could not find a visible workspace on output %p.\n", output);
1061             had_error = true;
1062             continue;
1063         }
1064
1065         con_move_to_workspace(current->con, ws, true, false, false);
1066     }
1067
1068     cmd_output->needs_tree_render = true;
1069     ysuccess(!had_error);
1070 }
1071
1072 /*
1073  * Implementation of 'move [container|window] [to] mark <str>'.
1074  *
1075  */
1076 void cmd_move_con_to_mark(I3_CMD, const char *mark) {
1077     DLOG("moving window to mark \"%s\"\n", mark);
1078
1079     HANDLE_EMPTY_MATCH;
1080
1081     bool result = true;
1082     owindow *current;
1083     TAILQ_FOREACH(current, &owindows, owindows) {
1084         DLOG("moving matched window %p / %s to mark \"%s\"\n", current->con, current->con->name, mark);
1085         result &= con_move_to_mark(current->con, mark);
1086     }
1087
1088     cmd_output->needs_tree_render = true;
1089     ysuccess(result);
1090 }
1091
1092 /*
1093  * Implementation of 'floating enable|disable|toggle'
1094  *
1095  */
1096 void cmd_floating(I3_CMD, const char *floating_mode) {
1097     owindow *current;
1098
1099     DLOG("floating_mode=%s\n", floating_mode);
1100
1101     HANDLE_EMPTY_MATCH;
1102
1103     TAILQ_FOREACH(current, &owindows, owindows) {
1104         DLOG("matching: %p / %s\n", current->con, current->con->name);
1105         if (strcmp(floating_mode, "toggle") == 0) {
1106             DLOG("should toggle mode\n");
1107             toggle_floating_mode(current->con, false);
1108         } else {
1109             DLOG("should switch mode to %s\n", floating_mode);
1110             if (strcmp(floating_mode, "enable") == 0) {
1111                 floating_enable(current->con, false);
1112             } else {
1113                 floating_disable(current->con, false);
1114             }
1115         }
1116     }
1117
1118     cmd_output->needs_tree_render = true;
1119     // XXX: default reply for now, make this a better reply
1120     ysuccess(true);
1121 }
1122
1123 /*
1124  * Implementation of 'move workspace to [output] <str>'.
1125  *
1126  */
1127 void cmd_move_workspace_to_output(I3_CMD, const char *name) {
1128     DLOG("should move workspace to output %s\n", name);
1129
1130     HANDLE_EMPTY_MATCH;
1131
1132     owindow *current;
1133     TAILQ_FOREACH(current, &owindows, owindows) {
1134         Con *ws = con_get_workspace(current->con);
1135         bool success = workspace_move_to_output(ws, name);
1136         if (!success) {
1137             ELOG("Failed to move workspace to output.\n");
1138             ysuccess(false);
1139             return;
1140         }
1141     }
1142
1143     cmd_output->needs_tree_render = true;
1144     // XXX: default reply for now, make this a better reply
1145     ysuccess(true);
1146 }
1147
1148 /*
1149  * Implementation of 'split v|h|t|vertical|horizontal|toggle'.
1150  *
1151  */
1152 void cmd_split(I3_CMD, const char *direction) {
1153     HANDLE_EMPTY_MATCH;
1154
1155     owindow *current;
1156     LOG("splitting in direction %c\n", direction[0]);
1157     TAILQ_FOREACH(current, &owindows, owindows) {
1158         if (con_is_docked(current->con)) {
1159             ELOG("Cannot split a docked container, skipping.\n");
1160             continue;
1161         }
1162
1163         DLOG("matching: %p / %s\n", current->con, current->con->name);
1164         if (direction[0] == 't') {
1165             layout_t current_layout;
1166             if (current->con->type == CT_WORKSPACE) {
1167                 current_layout = current->con->layout;
1168             } else {
1169                 current_layout = current->con->parent->layout;
1170             }
1171             /* toggling split orientation */
1172             if (current_layout == L_SPLITH) {
1173                 tree_split(current->con, VERT);
1174             } else {
1175                 tree_split(current->con, HORIZ);
1176             }
1177         } else {
1178             tree_split(current->con, (direction[0] == 'v' ? VERT : HORIZ));
1179         }
1180     }
1181
1182     cmd_output->needs_tree_render = true;
1183     // XXX: default reply for now, make this a better reply
1184     ysuccess(true);
1185 }
1186
1187 /*
1188  * Implementation of 'kill [window|client]'.
1189  *
1190  */
1191 void cmd_kill(I3_CMD, const char *kill_mode_str) {
1192     if (kill_mode_str == NULL)
1193         kill_mode_str = "window";
1194
1195     DLOG("kill_mode=%s\n", kill_mode_str);
1196
1197     int kill_mode;
1198     if (strcmp(kill_mode_str, "window") == 0)
1199         kill_mode = KILL_WINDOW;
1200     else if (strcmp(kill_mode_str, "client") == 0)
1201         kill_mode = KILL_CLIENT;
1202     else {
1203         ELOG("BUG: called with kill_mode=%s\n", kill_mode_str);
1204         ysuccess(false);
1205         return;
1206     }
1207
1208     HANDLE_EMPTY_MATCH;
1209
1210     owindow *current;
1211     TAILQ_FOREACH(current, &owindows, owindows) {
1212         con_close(current->con, kill_mode);
1213     }
1214
1215     cmd_output->needs_tree_render = true;
1216     // XXX: default reply for now, make this a better reply
1217     ysuccess(true);
1218 }
1219
1220 /*
1221  * Implementation of 'exec [--no-startup-id] <command>'.
1222  *
1223  */
1224 void cmd_exec(I3_CMD, const char *nosn, const char *command) {
1225     bool no_startup_id = (nosn != NULL);
1226
1227     DLOG("should execute %s, no_startup_id = %d\n", command, no_startup_id);
1228     start_application(command, no_startup_id);
1229
1230     // XXX: default reply for now, make this a better reply
1231     ysuccess(true);
1232 }
1233
1234 /*
1235  * Implementation of 'focus left|right|up|down'.
1236  *
1237  */
1238 void cmd_focus_direction(I3_CMD, const char *direction) {
1239     DLOG("direction = *%s*\n", direction);
1240
1241     if (strcmp(direction, "left") == 0)
1242         tree_next('p', HORIZ);
1243     else if (strcmp(direction, "right") == 0)
1244         tree_next('n', HORIZ);
1245     else if (strcmp(direction, "up") == 0)
1246         tree_next('p', VERT);
1247     else if (strcmp(direction, "down") == 0)
1248         tree_next('n', VERT);
1249     else {
1250         ELOG("Invalid focus direction (%s)\n", direction);
1251         ysuccess(false);
1252         return;
1253     }
1254
1255     cmd_output->needs_tree_render = true;
1256     // XXX: default reply for now, make this a better reply
1257     ysuccess(true);
1258 }
1259
1260 /*
1261  * Implementation of 'focus tiling|floating|mode_toggle'.
1262  *
1263  */
1264 void cmd_focus_window_mode(I3_CMD, const char *window_mode) {
1265     DLOG("window_mode = %s\n", window_mode);
1266
1267     Con *ws = con_get_workspace(focused);
1268     if (ws != NULL) {
1269         if (strcmp(window_mode, "mode_toggle") == 0) {
1270             if (con_inside_floating(focused))
1271                 window_mode = "tiling";
1272             else
1273                 window_mode = "floating";
1274         }
1275         Con *current;
1276         TAILQ_FOREACH(current, &(ws->focus_head), focused) {
1277             if ((strcmp(window_mode, "floating") == 0 && current->type != CT_FLOATING_CON) ||
1278                 (strcmp(window_mode, "tiling") == 0 && current->type == CT_FLOATING_CON))
1279                 continue;
1280
1281             con_focus(con_descend_focused(current));
1282             break;
1283         }
1284     }
1285
1286     cmd_output->needs_tree_render = true;
1287     // XXX: default reply for now, make this a better reply
1288     ysuccess(true);
1289 }
1290
1291 /*
1292  * Implementation of 'focus parent|child'.
1293  *
1294  */
1295 void cmd_focus_level(I3_CMD, const char *level) {
1296     DLOG("level = %s\n", level);
1297     bool success = false;
1298
1299     /* Focusing the parent can only be allowed if the newly
1300      * focused container won't escape the fullscreen container. */
1301     if (strcmp(level, "parent") == 0) {
1302         if (focused && focused->parent) {
1303             if (con_fullscreen_permits_focusing(focused->parent))
1304                 success = level_up();
1305             else
1306                 ELOG("'focus parent': Currently in fullscreen, not going up\n");
1307         }
1308     }
1309
1310     /* Focusing a child should always be allowed. */
1311     else
1312         success = level_down();
1313
1314     cmd_output->needs_tree_render = success;
1315     // XXX: default reply for now, make this a better reply
1316     ysuccess(success);
1317 }
1318
1319 /*
1320  * Implementation of 'focus'.
1321  *
1322  */
1323 void cmd_focus(I3_CMD) {
1324     DLOG("current_match = %p\n", current_match);
1325
1326     if (match_is_empty(current_match)) {
1327         ELOG("You have to specify which window/container should be focused.\n");
1328         ELOG("Example: [class=\"urxvt\" title=\"irssi\"] focus\n");
1329
1330         yerror("You have to specify which window/container should be focused");
1331
1332         return;
1333     }
1334
1335     Con *__i3_scratch = workspace_get("__i3_scratch", NULL);
1336     int count = 0;
1337     owindow *current;
1338     TAILQ_FOREACH(current, &owindows, owindows) {
1339         Con *ws = con_get_workspace(current->con);
1340         /* If no workspace could be found, this was a dock window.
1341          * Just skip it, you cannot focus dock windows. */
1342         if (!ws)
1343             continue;
1344
1345         /* Check the fullscreen focus constraints. */
1346         if (!con_fullscreen_permits_focusing(current->con)) {
1347             LOG("Cannot change focus while in fullscreen mode (fullscreen rules).\n");
1348             ysuccess(false);
1349             return;
1350         }
1351
1352         /* In case this is a scratchpad window, call scratchpad_show(). */
1353         if (ws == __i3_scratch) {
1354             scratchpad_show(current->con);
1355             count++;
1356             /* While for the normal focus case we can change focus multiple
1357              * times and only a single window ends up focused, we could show
1358              * multiple scratchpad windows. So, rather break here. */
1359             break;
1360         }
1361
1362         /* If the container is not on the current workspace,
1363          * workspace_show() will switch to a different workspace and (if
1364          * enabled) trigger a mouse pointer warp to the currently focused
1365          * container (!) on the target workspace.
1366          *
1367          * Therefore, before calling workspace_show(), we make sure that
1368          * 'current' will be focused on the workspace. However, we cannot
1369          * just con_focus(current) because then the pointer will not be
1370          * warped at all (the code thinks we are already there).
1371          *
1372          * So we focus 'current' to make it the currently focused window of
1373          * the target workspace, then revert focus. */
1374         Con *currently_focused = focused;
1375         con_focus(current->con);
1376         con_focus(currently_focused);
1377
1378         /* Now switch to the workspace, then focus */
1379         workspace_show(ws);
1380         LOG("focusing %p / %s\n", current->con, current->con->name);
1381         con_focus(current->con);
1382         count++;
1383     }
1384
1385     if (count > 1)
1386         LOG("WARNING: Your criteria for the focus command matches %d containers, "
1387             "while only exactly one container can be focused at a time.\n",
1388             count);
1389
1390     cmd_output->needs_tree_render = true;
1391     ysuccess(count > 0);
1392 }
1393
1394 /*
1395  * Implementation of 'fullscreen enable|toggle [global]' and
1396  *                   'fullscreen disable'
1397  *
1398  */
1399 void cmd_fullscreen(I3_CMD, const char *action, const char *fullscreen_mode) {
1400     fullscreen_mode_t mode = strcmp(fullscreen_mode, "global") == 0 ? CF_GLOBAL : CF_OUTPUT;
1401     DLOG("%s fullscreen, mode = %s\n", action, fullscreen_mode);
1402     owindow *current;
1403
1404     HANDLE_EMPTY_MATCH;
1405
1406     TAILQ_FOREACH(current, &owindows, owindows) {
1407         DLOG("matching: %p / %s\n", current->con, current->con->name);
1408         if (strcmp(action, "toggle") == 0) {
1409             con_toggle_fullscreen(current->con, mode);
1410         } else if (strcmp(action, "enable") == 0) {
1411             con_enable_fullscreen(current->con, mode);
1412         } else if (strcmp(action, "disable") == 0) {
1413             con_disable_fullscreen(current->con);
1414         }
1415     }
1416
1417     cmd_output->needs_tree_render = true;
1418     // XXX: default reply for now, make this a better reply
1419     ysuccess(true);
1420 }
1421
1422 /*
1423  * Implementation of 'sticky enable|disable|toggle'.
1424  *
1425  */
1426 void cmd_sticky(I3_CMD, const char *action) {
1427     DLOG("%s sticky on window\n", action);
1428     HANDLE_EMPTY_MATCH;
1429
1430     owindow *current;
1431     TAILQ_FOREACH(current, &owindows, owindows) {
1432         if (current->con->window == NULL) {
1433             ELOG("only containers holding a window can be made sticky, skipping con = %p\n", current->con);
1434             continue;
1435         }
1436         DLOG("setting sticky for container = %p / %s\n", current->con, current->con->name);
1437
1438         bool sticky = false;
1439         if (strcmp(action, "enable") == 0)
1440             sticky = true;
1441         else if (strcmp(action, "disable") == 0)
1442             sticky = false;
1443         else if (strcmp(action, "toggle") == 0)
1444             sticky = !current->con->sticky;
1445
1446         current->con->sticky = sticky;
1447         ewmh_update_sticky(current->con->window->id, sticky);
1448     }
1449
1450     /* A window we made sticky might not be on a visible workspace right now, so we need to make
1451      * sure it gets pushed to the front now. */
1452     output_push_sticky_windows(focused);
1453
1454     ewmh_update_wm_desktop();
1455
1456     cmd_output->needs_tree_render = true;
1457     ysuccess(true);
1458 }
1459
1460 /*
1461  * Implementation of 'move <direction> [<pixels> [px]]'.
1462  *
1463  */
1464 void cmd_move_direction(I3_CMD, const char *direction, long move_px) {
1465     owindow *current;
1466     HANDLE_EMPTY_MATCH;
1467
1468     Con *initially_focused = focused;
1469
1470     TAILQ_FOREACH(current, &owindows, owindows) {
1471         DLOG("moving in direction %s, px %ld\n", direction, move_px);
1472         if (con_is_floating(current->con)) {
1473             DLOG("floating move with %ld pixels\n", move_px);
1474             Rect newrect = current->con->parent->rect;
1475             if (strcmp(direction, "left") == 0) {
1476                 newrect.x -= move_px;
1477             } else if (strcmp(direction, "right") == 0) {
1478                 newrect.x += move_px;
1479             } else if (strcmp(direction, "up") == 0) {
1480                 newrect.y -= move_px;
1481             } else if (strcmp(direction, "down") == 0) {
1482                 newrect.y += move_px;
1483             }
1484             floating_reposition(current->con->parent, newrect);
1485         } else {
1486             tree_move(current->con, (strcmp(direction, "right") == 0 ? D_RIGHT : (strcmp(direction, "left") == 0 ? D_LEFT : (strcmp(direction, "up") == 0 ? D_UP : D_DOWN))));
1487             cmd_output->needs_tree_render = true;
1488         }
1489     }
1490
1491     /* the move command should not disturb focus */
1492     if (focused != initially_focused)
1493         con_focus(initially_focused);
1494
1495     // XXX: default reply for now, make this a better reply
1496     ysuccess(true);
1497 }
1498
1499 /*
1500  * Implementation of 'layout default|stacked|stacking|tabbed|splitv|splith'.
1501  *
1502  */
1503 void cmd_layout(I3_CMD, const char *layout_str) {
1504     HANDLE_EMPTY_MATCH;
1505
1506     layout_t layout;
1507     if (!layout_from_name(layout_str, &layout)) {
1508         ELOG("Unknown layout \"%s\", this is a mismatch between code and parser spec.\n", layout_str);
1509         return;
1510     }
1511
1512     DLOG("changing layout to %s (%d)\n", layout_str, layout);
1513
1514     owindow *current;
1515     TAILQ_FOREACH(current, &owindows, owindows) {
1516         if (con_is_docked(current->con)) {
1517             ELOG("cannot change layout of a docked container, skipping it.\n");
1518             continue;
1519         }
1520
1521         DLOG("matching: %p / %s\n", current->con, current->con->name);
1522         con_set_layout(current->con, layout);
1523     }
1524
1525     cmd_output->needs_tree_render = true;
1526     // XXX: default reply for now, make this a better reply
1527     ysuccess(true);
1528 }
1529
1530 /*
1531  * Implementation of 'layout toggle [all|split]'.
1532  *
1533  */
1534 void cmd_layout_toggle(I3_CMD, const char *toggle_mode) {
1535     owindow *current;
1536
1537     if (toggle_mode == NULL)
1538         toggle_mode = "default";
1539
1540     DLOG("toggling layout (mode = %s)\n", toggle_mode);
1541
1542     /* check if the match is empty, not if the result is empty */
1543     if (match_is_empty(current_match))
1544         con_toggle_layout(focused, toggle_mode);
1545     else {
1546         TAILQ_FOREACH(current, &owindows, owindows) {
1547             DLOG("matching: %p / %s\n", current->con, current->con->name);
1548             con_toggle_layout(current->con, toggle_mode);
1549         }
1550     }
1551
1552     cmd_output->needs_tree_render = true;
1553     // XXX: default reply for now, make this a better reply
1554     ysuccess(true);
1555 }
1556
1557 /*
1558  * Implementation of 'exit'.
1559  *
1560  */
1561 void cmd_exit(I3_CMD) {
1562     LOG("Exiting due to user command.\n");
1563 #ifdef I3_ASAN_ENABLED
1564     __lsan_do_leak_check();
1565 #endif
1566     ipc_shutdown(SHUTDOWN_REASON_EXIT);
1567     unlink(config.ipc_socket_path);
1568     xcb_disconnect(conn);
1569     exit(0);
1570
1571     /* unreached */
1572 }
1573
1574 /*
1575  * Implementation of 'reload'.
1576  *
1577  */
1578 void cmd_reload(I3_CMD) {
1579     LOG("reloading\n");
1580     kill_nagbar(&config_error_nagbar_pid, false);
1581     kill_nagbar(&command_error_nagbar_pid, false);
1582     load_configuration(conn, NULL, true);
1583     x_set_i3_atoms();
1584     /* Send an IPC event just in case the ws names have changed */
1585     ipc_send_workspace_event("reload", NULL, NULL);
1586     /* Send an update event for the barconfig just in case it has changed */
1587     update_barconfig();
1588
1589     // XXX: default reply for now, make this a better reply
1590     ysuccess(true);
1591 }
1592
1593 /*
1594  * Implementation of 'restart'.
1595  *
1596  */
1597 void cmd_restart(I3_CMD) {
1598     LOG("restarting i3\n");
1599     ipc_shutdown(SHUTDOWN_REASON_RESTART);
1600     unlink(config.ipc_socket_path);
1601     /* We need to call this manually since atexit handlers don’t get called
1602      * when exec()ing */
1603     purge_zerobyte_logfile();
1604     i3_restart(false);
1605
1606     // XXX: default reply for now, make this a better reply
1607     ysuccess(true);
1608 }
1609
1610 /*
1611  * Implementation of 'open'.
1612  *
1613  */
1614 void cmd_open(I3_CMD) {
1615     LOG("opening new container\n");
1616     Con *con = tree_open_con(NULL, NULL);
1617     con->layout = L_SPLITH;
1618     con_focus(con);
1619
1620     y(map_open);
1621     ystr("success");
1622     y(bool, true);
1623     ystr("id");
1624     y(integer, (uintptr_t)con);
1625     y(map_close);
1626
1627     cmd_output->needs_tree_render = true;
1628 }
1629
1630 /*
1631  * Implementation of 'focus output <output>'.
1632  *
1633  */
1634 void cmd_focus_output(I3_CMD, const char *name) {
1635     owindow *current;
1636
1637     DLOG("name = %s\n", name);
1638
1639     HANDLE_EMPTY_MATCH;
1640
1641     /* get the output */
1642     Output *current_output = NULL;
1643     Output *output;
1644
1645     TAILQ_FOREACH(current, &owindows, owindows)
1646     current_output = get_output_for_con(current->con);
1647     assert(current_output != NULL);
1648
1649     output = get_output_from_string(current_output, name);
1650
1651     if (!output) {
1652         LOG("No such output found.\n");
1653         ysuccess(false);
1654         return;
1655     }
1656
1657     /* get visible workspace on output */
1658     Con *ws = NULL;
1659     GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1660     if (!ws) {
1661         ysuccess(false);
1662         return;
1663     }
1664
1665     workspace_show(ws);
1666
1667     cmd_output->needs_tree_render = true;
1668     // XXX: default reply for now, make this a better reply
1669     ysuccess(true);
1670 }
1671
1672 /*
1673  * Implementation of 'move [window|container] [to] [absolute] position <px> [px] <px> [px]
1674  *
1675  */
1676 void cmd_move_window_to_position(I3_CMD, const char *method, long x, long y) {
1677     bool has_error = false;
1678
1679     owindow *current;
1680     HANDLE_EMPTY_MATCH;
1681
1682     TAILQ_FOREACH(current, &owindows, owindows) {
1683         if (!con_is_floating(current->con)) {
1684             ELOG("Cannot change position. The window/container is not floating\n");
1685
1686             if (!has_error) {
1687                 yerror("Cannot change position of a window/container because it is not floating.");
1688                 has_error = true;
1689             }
1690
1691             continue;
1692         }
1693
1694         if (strcmp(method, "absolute") == 0) {
1695             current->con->parent->rect.x = x;
1696             current->con->parent->rect.y = y;
1697
1698             DLOG("moving to absolute position %ld %ld\n", x, y);
1699             floating_maybe_reassign_ws(current->con->parent);
1700             cmd_output->needs_tree_render = true;
1701         }
1702
1703         if (strcmp(method, "position") == 0) {
1704             Rect newrect = current->con->parent->rect;
1705
1706             DLOG("moving to position %ld %ld\n", x, y);
1707             newrect.x = x;
1708             newrect.y = y;
1709
1710             floating_reposition(current->con->parent, newrect);
1711         }
1712     }
1713
1714     // XXX: default reply for now, make this a better reply
1715     if (!has_error)
1716         ysuccess(true);
1717 }
1718
1719 /*
1720  * Implementation of 'move [window|container] [to] [absolute] position center
1721  *
1722  */
1723 void cmd_move_window_to_center(I3_CMD, const char *method) {
1724     bool has_error = false;
1725     HANDLE_EMPTY_MATCH;
1726
1727     owindow *current;
1728     TAILQ_FOREACH(current, &owindows, owindows) {
1729         Con *floating_con = con_inside_floating(current->con);
1730         if (floating_con == NULL) {
1731             ELOG("con %p / %s is not floating, cannot move it to the center.\n",
1732                  current->con, current->con->name);
1733
1734             if (!has_error) {
1735                 yerror("Cannot change position of a window/container because it is not floating.");
1736                 has_error = true;
1737             }
1738
1739             continue;
1740         }
1741
1742         if (strcmp(method, "absolute") == 0) {
1743             DLOG("moving to absolute center\n");
1744             floating_center(floating_con, croot->rect);
1745
1746             floating_maybe_reassign_ws(floating_con);
1747             cmd_output->needs_tree_render = true;
1748         }
1749
1750         if (strcmp(method, "position") == 0) {
1751             DLOG("moving to center\n");
1752             floating_center(floating_con, con_get_workspace(floating_con)->rect);
1753
1754             cmd_output->needs_tree_render = true;
1755         }
1756     }
1757
1758     // XXX: default reply for now, make this a better reply
1759     if (!has_error)
1760         ysuccess(true);
1761 }
1762
1763 /*
1764  * Implementation of 'move [window|container] [to] position mouse'
1765  *
1766  */
1767 void cmd_move_window_to_mouse(I3_CMD) {
1768     HANDLE_EMPTY_MATCH;
1769
1770     owindow *current;
1771     TAILQ_FOREACH(current, &owindows, owindows) {
1772         Con *floating_con = con_inside_floating(current->con);
1773         if (floating_con == NULL) {
1774             DLOG("con %p / %s is not floating, cannot move it to the mouse position.\n",
1775                  current->con, current->con->name);
1776             continue;
1777         }
1778
1779         DLOG("moving floating container %p / %s to cursor position\n", floating_con, floating_con->name);
1780         floating_move_to_pointer(floating_con);
1781     }
1782
1783     cmd_output->needs_tree_render = true;
1784     ysuccess(true);
1785 }
1786
1787 /*
1788  * Implementation of 'move scratchpad'.
1789  *
1790  */
1791 void cmd_move_scratchpad(I3_CMD) {
1792     DLOG("should move window to scratchpad\n");
1793     owindow *current;
1794
1795     HANDLE_EMPTY_MATCH;
1796
1797     TAILQ_FOREACH(current, &owindows, owindows) {
1798         DLOG("matching: %p / %s\n", current->con, current->con->name);
1799         scratchpad_move(current->con);
1800     }
1801
1802     cmd_output->needs_tree_render = true;
1803     // XXX: default reply for now, make this a better reply
1804     ysuccess(true);
1805 }
1806
1807 /*
1808  * Implementation of 'scratchpad show'.
1809  *
1810  */
1811 void cmd_scratchpad_show(I3_CMD) {
1812     DLOG("should show scratchpad window\n");
1813     owindow *current;
1814
1815     if (match_is_empty(current_match)) {
1816         scratchpad_show(NULL);
1817     } else {
1818         TAILQ_FOREACH(current, &owindows, owindows) {
1819             DLOG("matching: %p / %s\n", current->con, current->con->name);
1820             scratchpad_show(current->con);
1821         }
1822     }
1823
1824     cmd_output->needs_tree_render = true;
1825     // XXX: default reply for now, make this a better reply
1826     ysuccess(true);
1827 }
1828
1829 /*
1830  * Implementation of 'swap [container] [with] id|con_id|mark <arg>'.
1831  *
1832  */
1833 void cmd_swap(I3_CMD, const char *mode, const char *arg) {
1834     HANDLE_EMPTY_MATCH;
1835
1836     owindow *match = TAILQ_FIRST(&owindows);
1837     if (match == NULL) {
1838         DLOG("No match found for swapping.\n");
1839         return;
1840     }
1841
1842     Con *con;
1843     if (strcmp(mode, "id") == 0) {
1844         long target;
1845         if (!parse_long(arg, &target, 0)) {
1846             yerror("Failed to parse %s into a window id.\n", arg);
1847             return;
1848         }
1849
1850         con = con_by_window_id(target);
1851     } else if (strcmp(mode, "con_id") == 0) {
1852         long target;
1853         if (!parse_long(arg, &target, 0)) {
1854             yerror("Failed to parse %s into a container id.\n", arg);
1855             return;
1856         }
1857
1858         con = con_by_con_id(target);
1859     } else if (strcmp(mode, "mark") == 0) {
1860         con = con_by_mark(arg);
1861     } else {
1862         yerror("Unhandled swap mode \"%s\". This is a bug.\n", mode);
1863         return;
1864     }
1865
1866     if (con == NULL) {
1867         yerror("Could not find container for %s = %s\n", mode, arg);
1868         return;
1869     }
1870
1871     if (match != TAILQ_LAST(&owindows, owindows_head)) {
1872         DLOG("More than one container matched the swap command, only using the first one.");
1873     }
1874
1875     if (match->con == NULL) {
1876         DLOG("Match %p has no container.\n", match);
1877         ysuccess(false);
1878         return;
1879     }
1880
1881     DLOG("Swapping %p with %p.\n", match->con, con);
1882     bool result = con_swap(match->con, con);
1883
1884     cmd_output->needs_tree_render = true;
1885     ysuccess(result);
1886 }
1887
1888 /*
1889  * Implementation of 'title_format <format>'
1890  *
1891  */
1892 void cmd_title_format(I3_CMD, const char *format) {
1893     DLOG("setting title_format to \"%s\"\n", format);
1894     HANDLE_EMPTY_MATCH;
1895
1896     owindow *current;
1897     TAILQ_FOREACH(current, &owindows, owindows) {
1898         DLOG("setting title_format for %p / %s\n", current->con, current->con->name);
1899         FREE(current->con->title_format);
1900
1901         /* If we only display the title without anything else, we can skip the parsing step,
1902          * so we remove the title format altogether. */
1903         if (strcasecmp(format, "%title") != 0) {
1904             current->con->title_format = sstrdup(format);
1905
1906             if (current->con->window != NULL) {
1907                 i3String *formatted_title = con_parse_title_format(current->con);
1908                 ewmh_update_visible_name(current->con->window->id, i3string_as_utf8(formatted_title));
1909                 I3STRING_FREE(formatted_title);
1910             }
1911         } else {
1912             if (current->con->window != NULL) {
1913                 /* We can remove _NET_WM_VISIBLE_NAME since we don't display a custom title. */
1914                 ewmh_update_visible_name(current->con->window->id, NULL);
1915             }
1916         }
1917
1918         if (current->con->window != NULL) {
1919             /* Make sure the window title is redrawn immediately. */
1920             current->con->window->name_x_changed = true;
1921         } else {
1922             /* For windowless containers we also need to force the redrawing. */
1923             FREE(current->con->deco_render_params);
1924         }
1925     }
1926
1927     cmd_output->needs_tree_render = true;
1928     ysuccess(true);
1929 }
1930
1931 /*
1932  * Implementation of 'rename workspace [<name>] to <name>'
1933  *
1934  */
1935 void cmd_rename_workspace(I3_CMD, const char *old_name, const char *new_name) {
1936     if (strncasecmp(new_name, "__", strlen("__")) == 0) {
1937         LOG("Cannot rename workspace to \"%s\": names starting with __ are i3-internal.\n", new_name);
1938         ysuccess(false);
1939         return;
1940     }
1941     if (old_name) {
1942         LOG("Renaming workspace \"%s\" to \"%s\"\n", old_name, new_name);
1943     } else {
1944         LOG("Renaming current workspace to \"%s\"\n", new_name);
1945     }
1946
1947     Con *output, *workspace = NULL;
1948     if (old_name) {
1949         TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
1950         GREP_FIRST(workspace, output_get_content(output),
1951                    !strcasecmp(child->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 = NULL;
1963     TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
1964     GREP_FIRST(check_dest, output_get_content(output),
1965                !strcasecmp(child->name, new_name));
1966
1967     /* If check_dest == workspace, the user might be changing the case of the
1968      * workspace, or it might just be a no-op. */
1969     if (check_dest != NULL && check_dest != workspace) {
1970         yerror("New workspace \"%s\" already exists", new_name);
1971         return;
1972     }
1973
1974     /* Change the name and try to parse it as a number. */
1975     /* old_name might refer to workspace->name, so copy it before free()ing */
1976     char *old_name_copy = sstrdup(old_name);
1977     FREE(workspace->name);
1978     workspace->name = sstrdup(new_name);
1979
1980     workspace->num = ws_name_to_number(new_name);
1981     LOG("num = %d\n", workspace->num);
1982
1983     /* By re-attaching, the sort order will be correct afterwards. */
1984     Con *previously_focused = focused;
1985     Con *parent = workspace->parent;
1986     con_detach(workspace);
1987     con_attach(workspace, parent, false);
1988
1989     /* Move the workspace to the correct output if it has an assignment */
1990     struct Workspace_Assignment *assignment = NULL;
1991     TAILQ_FOREACH(assignment, &ws_assignments, ws_assignments) {
1992         if (assignment->output == NULL)
1993             continue;
1994         if (strcmp(assignment->name, workspace->name) != 0 && (!name_is_digits(assignment->name) || ws_name_to_number(assignment->name) != workspace->num)) {
1995             continue;
1996         }
1997
1998         workspace_move_to_output(workspace, assignment->output);
1999
2000         if (previously_focused)
2001             workspace_show(con_get_workspace(previously_focused));
2002
2003         break;
2004     }
2005
2006     /* Restore the previous focus since con_attach messes with the focus. */
2007     con_focus(previously_focused);
2008
2009     cmd_output->needs_tree_render = true;
2010     ysuccess(true);
2011
2012     ipc_send_workspace_event("rename", workspace, NULL);
2013     ewmh_update_desktop_names();
2014     ewmh_update_desktop_viewport();
2015     ewmh_update_current_desktop();
2016
2017     startup_sequence_rename_workspace(old_name_copy, new_name);
2018     free(old_name_copy);
2019 }
2020
2021 /*
2022  * Implementation of 'bar mode dock|hide|invisible|toggle [<bar_id>]'
2023  *
2024  */
2025 bool cmd_bar_mode(const char *bar_mode, const char *bar_id) {
2026     int mode = M_DOCK;
2027     bool toggle = false;
2028     if (strcmp(bar_mode, "dock") == 0)
2029         mode = M_DOCK;
2030     else if (strcmp(bar_mode, "hide") == 0)
2031         mode = M_HIDE;
2032     else if (strcmp(bar_mode, "invisible") == 0)
2033         mode = M_INVISIBLE;
2034     else if (strcmp(bar_mode, "toggle") == 0)
2035         toggle = true;
2036     else {
2037         ELOG("Unknown bar mode \"%s\", this is a mismatch between code and parser spec.\n", bar_mode);
2038         return false;
2039     }
2040
2041     bool changed_sth = false;
2042     Barconfig *current = NULL;
2043     TAILQ_FOREACH(current, &barconfigs, configs) {
2044         if (bar_id && strcmp(current->id, bar_id) != 0)
2045             continue;
2046
2047         if (toggle)
2048             mode = (current->mode + 1) % 2;
2049
2050         DLOG("Changing bar mode of bar_id '%s' to '%s (%d)'\n", current->id, bar_mode, mode);
2051         current->mode = mode;
2052         changed_sth = true;
2053
2054         if (bar_id)
2055             break;
2056     }
2057
2058     if (bar_id && !changed_sth) {
2059         DLOG("Changing bar mode of bar_id %s failed, bar_id not found.\n", bar_id);
2060         return false;
2061     }
2062
2063     return true;
2064 }
2065
2066 /*
2067  * Implementation of 'bar hidden_state hide|show|toggle [<bar_id>]'
2068  *
2069  */
2070 bool cmd_bar_hidden_state(const char *bar_hidden_state, const char *bar_id) {
2071     int hidden_state = S_SHOW;
2072     bool toggle = false;
2073     if (strcmp(bar_hidden_state, "hide") == 0)
2074         hidden_state = S_HIDE;
2075     else if (strcmp(bar_hidden_state, "show") == 0)
2076         hidden_state = S_SHOW;
2077     else if (strcmp(bar_hidden_state, "toggle") == 0)
2078         toggle = true;
2079     else {
2080         ELOG("Unknown bar state \"%s\", this is a mismatch between code and parser spec.\n", bar_hidden_state);
2081         return false;
2082     }
2083
2084     bool changed_sth = false;
2085     Barconfig *current = NULL;
2086     TAILQ_FOREACH(current, &barconfigs, configs) {
2087         if (bar_id && strcmp(current->id, bar_id) != 0)
2088             continue;
2089
2090         if (toggle)
2091             hidden_state = (current->hidden_state + 1) % 2;
2092
2093         DLOG("Changing bar hidden_state of bar_id '%s' to '%s (%d)'\n", current->id, bar_hidden_state, hidden_state);
2094         current->hidden_state = hidden_state;
2095         changed_sth = true;
2096
2097         if (bar_id)
2098             break;
2099     }
2100
2101     if (bar_id && !changed_sth) {
2102         DLOG("Changing bar hidden_state of bar_id %s failed, bar_id not found.\n", bar_id);
2103         return false;
2104     }
2105
2106     return true;
2107 }
2108
2109 /*
2110  * Implementation of 'bar (hidden_state hide|show|toggle)|(mode dock|hide|invisible|toggle) [<bar_id>]'
2111  *
2112  */
2113 void cmd_bar(I3_CMD, const char *bar_type, const char *bar_value, const char *bar_id) {
2114     bool ret;
2115     if (strcmp(bar_type, "mode") == 0)
2116         ret = cmd_bar_mode(bar_value, bar_id);
2117     else if (strcmp(bar_type, "hidden_state") == 0)
2118         ret = cmd_bar_hidden_state(bar_value, bar_id);
2119     else {
2120         ELOG("Unknown bar option type \"%s\", this is a mismatch between code and parser spec.\n", bar_type);
2121         ret = false;
2122     }
2123
2124     ysuccess(ret);
2125     if (!ret)
2126         return;
2127
2128     update_barconfig();
2129 }
2130
2131 /*
2132  * Implementation of 'shmlog <size>|toggle|on|off'
2133  *
2134  */
2135 void cmd_shmlog(I3_CMD, const char *argument) {
2136     if (!strcmp(argument, "toggle"))
2137         /* Toggle shm log, if size is not 0. If it is 0, set it to default. */
2138         shmlog_size = shmlog_size ? -shmlog_size : default_shmlog_size;
2139     else if (!strcmp(argument, "on"))
2140         shmlog_size = default_shmlog_size;
2141     else if (!strcmp(argument, "off"))
2142         shmlog_size = 0;
2143     else {
2144         /* If shm logging now, restart logging with the new size. */
2145         if (shmlog_size > 0) {
2146             shmlog_size = 0;
2147             LOG("Restarting shm logging...\n");
2148             init_logging();
2149         }
2150         shmlog_size = atoi(argument);
2151         /* Make a weakly attempt at ensuring the argument is valid. */
2152         if (shmlog_size <= 0)
2153             shmlog_size = default_shmlog_size;
2154     }
2155     LOG("%s shm logging\n", shmlog_size > 0 ? "Enabling" : "Disabling");
2156     init_logging();
2157     update_shmlog_atom();
2158     // XXX: default reply for now, make this a better reply
2159     ysuccess(true);
2160 }
2161
2162 /*
2163  * Implementation of 'debuglog toggle|on|off'
2164  *
2165  */
2166 void cmd_debuglog(I3_CMD, const char *argument) {
2167     bool logging = get_debug_logging();
2168     if (!strcmp(argument, "toggle")) {
2169         LOG("%s debug logging\n", logging ? "Disabling" : "Enabling");
2170         set_debug_logging(!logging);
2171     } else if (!strcmp(argument, "on") && !logging) {
2172         LOG("Enabling debug logging\n");
2173         set_debug_logging(true);
2174     } else if (!strcmp(argument, "off") && logging) {
2175         LOG("Disabling debug logging\n");
2176         set_debug_logging(false);
2177     }
2178     // XXX: default reply for now, make this a better reply
2179     ysuccess(true);
2180 }