i3
commands.c
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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  * © 2009-2012 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 #include "all.h"
16 #include "shmlog.h"
17 
18 // Macros to make the YAJL API a bit easier to use.
19 #define y(x, ...) yajl_gen_ ## x (cmd_output->json_gen, ##__VA_ARGS__)
20 #define ystr(str) yajl_gen_string(cmd_output->json_gen, (unsigned char*)str, strlen(str))
21 #define ysuccess(success) do { \
22  y(map_open); \
23  ystr("success"); \
24  y(bool, success); \
25  y(map_close); \
26 } while (0)
27 #define yerror(message) do { \
28  y(map_open); \
29  ystr("success"); \
30  y(bool, false); \
31  ystr("error"); \
32  ystr(message); \
33  y(map_close); \
34 } while (0)
35 
41 #define HANDLE_EMPTY_MATCH do { \
42  if (match_is_empty(current_match)) { \
43  owindow *ow = smalloc(sizeof(owindow)); \
44  ow->con = focused; \
45  TAILQ_INIT(&owindows); \
46  TAILQ_INSERT_TAIL(&owindows, ow, owindows); \
47  } \
48 } while (0)
49 
50 
51 /*
52  * Returns true if a is definitely greater than b (using the given epsilon)
53  *
54  */
55 static bool definitelyGreaterThan(float a, float b, float epsilon) {
56  return (a - b) > ( (fabs(a) < fabs(b) ? fabs(b) : fabs(a)) * epsilon);
57 }
58 
59 /*
60  * Returns an 'output' corresponding to one of left/right/down/up or a specific
61  * output name.
62  *
63  */
64 static Output *get_output_from_string(Output *current_output, const char *output_str) {
65  Output *output;
66 
67  if (strcasecmp(output_str, "left") == 0)
68  output = get_output_next_wrap(D_LEFT, current_output);
69  else if (strcasecmp(output_str, "right") == 0)
70  output = get_output_next_wrap(D_RIGHT, current_output);
71  else if (strcasecmp(output_str, "up") == 0)
72  output = get_output_next_wrap(D_UP, current_output);
73  else if (strcasecmp(output_str, "down") == 0)
74  output = get_output_next_wrap(D_DOWN, current_output);
75  else output = get_output_by_name(output_str);
76 
77  return output;
78 }
79 
80 /*
81  * Returns the output containing the given container.
82  */
83 static Output *get_output_of_con(Con *con) {
84  Con *output_con = con_get_output(con);
85  Output *output = get_output_by_name(output_con->name);
86  assert(output != NULL);
87 
88  return output;
89 }
90 
91 /*
92  * Checks whether we switched to a new workspace and returns false in that case,
93  * signaling that further workspace switching should be done by the calling function
94  * If not, calls workspace_back_and_forth() if workspace_auto_back_and_forth is set
95  * and return true, signaling that no further workspace switching should occur in the calling function.
96  *
97  */
98 static bool maybe_back_and_forth(struct CommandResult *cmd_output, char *name) {
100 
101  /* If we switched to a different workspace, do nothing */
102  if (strcmp(ws->name, name) != 0)
103  return false;
104 
105  DLOG("This workspace is already focused.\n");
108  cmd_output->needs_tree_render = true;
109  }
110  return true;
111 }
112 
113 /*
114  * Return the passed workspace unless it is the current one and auto back and
115  * forth is enabled, in which case the back_and_forth workspace is returned.
116  */
118  Con *current, *baf;
119 
121  return workspace;
122 
123  current = con_get_workspace(focused);
124 
125  if (current == workspace) {
127  if (baf != NULL) {
128  DLOG("Substituting workspace with back_and_forth, as it is focused.\n");
129  return baf;
130  }
131  }
132 
133  return workspace;
134 }
135 
136 // This code is commented out because we might recycle it for popping up error
137 // messages on parser errors.
138 #if 0
139 static pid_t migration_pid = -1;
140 
141 /*
142  * Handler which will be called when we get a SIGCHLD for the nagbar, meaning
143  * it exited (or could not be started, depending on the exit code).
144  *
145  */
146 static void nagbar_exited(EV_P_ ev_child *watcher, int revents) {
147  ev_child_stop(EV_A_ watcher);
148  if (!WIFEXITED(watcher->rstatus)) {
149  fprintf(stderr, "ERROR: i3-nagbar did not exit normally.\n");
150  return;
151  }
152 
153  int exitcode = WEXITSTATUS(watcher->rstatus);
154  printf("i3-nagbar process exited with status %d\n", exitcode);
155  if (exitcode == 2) {
156  fprintf(stderr, "ERROR: i3-nagbar could not be found. Is it correctly installed on your system?\n");
157  }
158 
159  migration_pid = -1;
160 }
161 
162 /* We need ev >= 4 for the following code. Since it is not *that* important (it
163  * only makes sure that there are no i3-nagbar instances left behind) we still
164  * support old systems with libev 3. */
165 #if EV_VERSION_MAJOR >= 4
166 /*
167  * Cleanup handler. Will be called when i3 exits. Kills i3-nagbar with signal
168  * SIGKILL (9) to make sure there are no left-over i3-nagbar processes.
169  *
170  */
171 static void nagbar_cleanup(EV_P_ ev_cleanup *watcher, int revent) {
172  if (migration_pid != -1) {
173  LOG("Sending SIGKILL (9) to i3-nagbar with PID %d\n", migration_pid);
174  kill(migration_pid, SIGKILL);
175  }
176 }
177 #endif
178 
179 void cmd_MIGRATION_start_nagbar(void) {
180  if (migration_pid != -1) {
181  fprintf(stderr, "i3-nagbar already running.\n");
182  return;
183  }
184  fprintf(stderr, "Starting i3-nagbar, command parsing differs from expected output.\n");
185  ELOG("Please report this on IRC or in the bugtracker. Make sure to include the full debug level logfile:\n");
186  ELOG("i3-dump-log | gzip -9c > /tmp/i3.log.gz\n");
187  ELOG("FYI: Your i3 version is " I3_VERSION "\n");
188  migration_pid = fork();
189  if (migration_pid == -1) {
190  warn("Could not fork()");
191  return;
192  }
193 
194  /* child */
195  if (migration_pid == 0) {
196  char *pageraction;
197  sasprintf(&pageraction, "i3-sensible-terminal -e i3-sensible-pager \"%s\"", errorfilename);
198  char *argv[] = {
199  NULL, /* will be replaced by the executable path */
200  "-t",
201  "error",
202  "-m",
203  "You found a parsing error. Please, please, please, report it!",
204  "-b",
205  "show errors",
206  pageraction,
207  NULL
208  };
209  exec_i3_utility("i3-nagbar", argv);
210  }
211 
212  /* parent */
213  /* install a child watcher */
214  ev_child *child = smalloc(sizeof(ev_child));
215  ev_child_init(child, &nagbar_exited, migration_pid, 0);
216  ev_child_start(main_loop, child);
217 
218 /* We need ev >= 4 for the following code. Since it is not *that* important (it
219  * only makes sure that there are no i3-nagbar instances left behind) we still
220  * support old systems with libev 3. */
221 #if EV_VERSION_MAJOR >= 4
222  /* install a cleanup watcher (will be called when i3 exits and i3-nagbar is
223  * still running) */
224  ev_cleanup *cleanup = smalloc(sizeof(ev_cleanup));
225  ev_cleanup_init(cleanup, nagbar_cleanup);
226  ev_cleanup_start(main_loop, cleanup);
227 #endif
228 }
229 
230 #endif
231 
232 /*******************************************************************************
233  * Criteria functions.
234  ******************************************************************************/
235 
236 /*
237  * Helper data structure for an operation window (window on which the operation
238  * will be performed). Used to build the TAILQ owindows.
239  *
240  */
241 typedef struct owindow {
243  TAILQ_ENTRY(owindow) owindows;
244 } owindow;
245 
246 typedef TAILQ_HEAD(owindows_head, owindow) owindows_head;
247 
248 static owindows_head owindows;
249 
250 /*
251  * Initializes the specified 'Match' data structure and the initial state of
252  * commands.c for matching target windows of a command.
253  *
254  */
256  Con *con;
257  owindow *ow;
258 
259  DLOG("Initializing criteria, current_match = %p\n", current_match);
261  while (!TAILQ_EMPTY(&owindows)) {
262  ow = TAILQ_FIRST(&owindows);
263  TAILQ_REMOVE(&owindows, ow, owindows);
264  free(ow);
265  }
266  TAILQ_INIT(&owindows);
267  /* copy all_cons */
269  ow = smalloc(sizeof(owindow));
270  ow->con = con;
271  TAILQ_INSERT_TAIL(&owindows, ow, owindows);
272  }
273 }
274 
275 /*
276  * A match specification just finished (the closing square bracket was found),
277  * so we filter the list of owindows.
278  *
279  */
281  owindow *next, *current;
282 
283  DLOG("match specification finished, matching...\n");
284  /* copy the old list head to iterate through it and start with a fresh
285  * list which will contain only matching windows */
286  struct owindows_head old = owindows;
287  TAILQ_INIT(&owindows);
288  for (next = TAILQ_FIRST(&old); next != TAILQ_END(&old);) {
289  /* make a copy of the next pointer and advance the pointer to the
290  * next element as we are going to invalidate the element’s
291  * next/prev pointers by calling TAILQ_INSERT_TAIL later */
292  current = next;
293  next = TAILQ_NEXT(next, owindows);
294 
295  DLOG("checking if con %p / %s matches\n", current->con, current->con->name);
296  if (current_match->con_id != NULL) {
297  if (current_match->con_id == current->con) {
298  DLOG("matches container!\n");
299  TAILQ_INSERT_TAIL(&owindows, current, owindows);
300  }
301  } else if (current_match->mark != NULL && current->con->mark != NULL &&
302  regex_matches(current_match->mark, current->con->mark)) {
303  DLOG("match by mark\n");
304  TAILQ_INSERT_TAIL(&owindows, current, owindows);
305  } else {
306  if (current->con->window == NULL)
307  continue;
308  if (match_matches_window(current_match, current->con->window)) {
309  DLOG("matches window!\n");
310  TAILQ_INSERT_TAIL(&owindows, current, owindows);
311  } else {
312  DLOG("doesnt match\n");
313  free(current);
314  }
315  }
316  }
317 
318  TAILQ_FOREACH(current, &owindows, owindows) {
319  DLOG("matching: %p / %s\n", current->con, current->con->name);
320  }
321 }
322 
323 /*
324  * Interprets a ctype=cvalue pair and adds it to the current match
325  * specification.
326  *
327  */
328 void cmd_criteria_add(I3_CMD, char *ctype, char *cvalue) {
329  DLOG("ctype=*%s*, cvalue=*%s*\n", ctype, cvalue);
330 
331  if (strcmp(ctype, "class") == 0) {
332  current_match->class = regex_new(cvalue);
333  return;
334  }
335 
336  if (strcmp(ctype, "instance") == 0) {
337  current_match->instance = regex_new(cvalue);
338  return;
339  }
340 
341  if (strcmp(ctype, "window_role") == 0) {
342  current_match->role = regex_new(cvalue);
343  return;
344  }
345 
346  if (strcmp(ctype, "con_id") == 0) {
347  char *end;
348  long parsed = strtol(cvalue, &end, 10);
349  if (parsed == LONG_MIN ||
350  parsed == LONG_MAX ||
351  parsed < 0 ||
352  (end && *end != '\0')) {
353  ELOG("Could not parse con id \"%s\"\n", cvalue);
354  } else {
355  current_match->con_id = (Con*)parsed;
356  printf("id as int = %p\n", current_match->con_id);
357  }
358  return;
359  }
360 
361  if (strcmp(ctype, "id") == 0) {
362  char *end;
363  long parsed = strtol(cvalue, &end, 10);
364  if (parsed == LONG_MIN ||
365  parsed == LONG_MAX ||
366  parsed < 0 ||
367  (end && *end != '\0')) {
368  ELOG("Could not parse window id \"%s\"\n", cvalue);
369  } else {
370  current_match->id = parsed;
371  printf("window id as int = %d\n", current_match->id);
372  }
373  return;
374  }
375 
376  if (strcmp(ctype, "con_mark") == 0) {
377  current_match->mark = regex_new(cvalue);
378  return;
379  }
380 
381  if (strcmp(ctype, "title") == 0) {
382  current_match->title = regex_new(cvalue);
383  return;
384  }
385 
386  if (strcmp(ctype, "urgent") == 0) {
387  if (strcasecmp(cvalue, "latest") == 0 ||
388  strcasecmp(cvalue, "newest") == 0 ||
389  strcasecmp(cvalue, "recent") == 0 ||
390  strcasecmp(cvalue, "last") == 0) {
391  current_match->urgent = U_LATEST;
392  } else if (strcasecmp(cvalue, "oldest") == 0 ||
393  strcasecmp(cvalue, "first") == 0) {
394  current_match->urgent = U_OLDEST;
395  }
396  return;
397  }
398 
399  ELOG("Unknown criterion: %s\n", ctype);
400 }
401 
402 /*
403  * Implementation of 'move [window|container] [to] workspace
404  * next|prev|next_on_output|prev_on_output|current'.
405  *
406  */
407 void cmd_move_con_to_workspace(I3_CMD, char *which) {
408  owindow *current;
409 
410  DLOG("which=%s\n", which);
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 &&
418  ysuccess(false);
419  return;
420  }
421 
423 
424  /* get the workspace */
425  Con *ws;
426  if (strcmp(which, "next") == 0)
427  ws = workspace_next();
428  else if (strcmp(which, "prev") == 0)
429  ws = workspace_prev();
430  else if (strcmp(which, "next_on_output") == 0)
432  else if (strcmp(which, "prev_on_output") == 0)
434  else if (strcmp(which, "current") == 0)
436  else {
437  ELOG("BUG: called with which=%s\n", which);
438  ysuccess(false);
439  return;
440  }
441 
442  TAILQ_FOREACH(current, &owindows, owindows) {
443  DLOG("matching: %p / %s\n", current->con, current->con->name);
444  con_move_to_workspace(current->con, ws, true, false);
445  }
446 
447  cmd_output->needs_tree_render = true;
448  // XXX: default reply for now, make this a better reply
449  ysuccess(true);
450 }
451 
457  owindow *current;
458  Con *ws;
459 
461 
462  if (ws == NULL) {
463  yerror("No workspace was previously active.");
464  return;
465  }
466 
468 
469  TAILQ_FOREACH(current, &owindows, owindows) {
470  DLOG("matching: %p / %s\n", current->con, current->con->name);
471  con_move_to_workspace(current->con, ws, true, false);
472  }
473 
474  cmd_output->needs_tree_render = true;
475  // XXX: default reply for now, make this a better reply
476  ysuccess(true);
477 }
478 
479 /*
480  * Implementation of 'move [window|container] [to] workspace <name>'.
481  *
482  */
484  if (strncasecmp(name, "__i3_", strlen("__i3_")) == 0) {
485  LOG("You cannot switch to the i3 internal workspaces.\n");
486  ysuccess(false);
487  return;
488  }
489 
490  owindow *current;
491 
492  /* We have nothing to move:
493  * when criteria was specified but didn't match any window or
494  * when criteria wasn't specified and we don't have any window focused. */
495  if (!match_is_empty(current_match) && TAILQ_EMPTY(&owindows)) {
496  ELOG("No windows match your criteria, cannot move.\n");
497  ysuccess(false);
498  return;
499  }
500  else if (match_is_empty(current_match) && focused->type == CT_WORKSPACE &&
502  ysuccess(false);
503  return;
504  }
505 
506  LOG("should move window to workspace %s\n", name);
507  /* get the workspace */
508  Con *ws = workspace_get(name, NULL);
509 
511 
513 
514  TAILQ_FOREACH(current, &owindows, owindows) {
515  DLOG("matching: %p / %s\n", current->con, current->con->name);
516  con_move_to_workspace(current->con, ws, true, false);
517  }
518 
519  cmd_output->needs_tree_render = true;
520  // XXX: default reply for now, make this a better reply
521  ysuccess(true);
522 }
523 
524 /*
525  * Implementation of 'move [window|container] [to] workspace number <name>'.
526  *
527  */
529  owindow *current;
530 
531  /* We have nothing to move:
532  * when criteria was specified but didn't match any window or
533  * when criteria wasn't specified and we don't have any window focused. */
534  if ((!match_is_empty(current_match) && TAILQ_EMPTY(&owindows)) ||
535  (match_is_empty(current_match) && focused->type == CT_WORKSPACE &&
537  ysuccess(false);
538  return;
539  }
540 
541  LOG("should move window to workspace %s\n", which);
542  /* get the workspace */
543  Con *output, *workspace = NULL;
544 
545  char *endptr = NULL;
546  long parsed_num = strtol(which, &endptr, 10);
547  if (parsed_num == LONG_MIN ||
548  parsed_num == LONG_MAX ||
549  parsed_num < 0 ||
550  endptr == which) {
551  LOG("Could not parse initial part of \"%s\" as a number.\n", which);
552  // TODO: better error message
553  yerror("Could not parse number");
554  return;
555  }
556 
557  TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
558  GREP_FIRST(workspace, output_get_content(output),
559  child->num == parsed_num);
560 
561  if (!workspace) {
562  workspace = workspace_get(which, NULL);
563  }
564 
565  workspace = maybe_auto_back_and_forth_workspace(workspace);
566 
568 
569  TAILQ_FOREACH(current, &owindows, owindows) {
570  DLOG("matching: %p / %s\n", current->con, current->con->name);
571  con_move_to_workspace(current->con, workspace, true, false);
572  }
573 
574  cmd_output->needs_tree_render = true;
575  // XXX: default reply for now, make this a better reply
576  ysuccess(true);
577 }
578 
579 static void cmd_resize_floating(I3_CMD, char *way, char *direction, Con *floating_con, int px) {
580  LOG("floating resize\n");
581  Rect old_rect = floating_con->rect;
582  Con *focused_con = con_descend_focused(floating_con);
583 
584  /* ensure that resize will take place even if pixel increment is smaller than
585  * height increment or width increment.
586  * fixes #1011 */
587  if (strcmp(direction, "up") == 0 || strcmp(direction, "down") == 0 ||
588  strcmp(direction, "height") == 0) {
589  if (px < 0)
590  px = (-px < focused_con->height_increment) ? -focused_con->height_increment : px;
591  else
592  px = (px < focused_con->height_increment) ? focused_con->height_increment : px;
593  } else if (strcmp(direction, "left") == 0 || strcmp(direction, "right") == 0) {
594  if (px < 0)
595  px = (-px < focused_con->width_increment) ? -focused_con->width_increment : px;
596  else
597  px = (px < focused_con->width_increment) ? focused_con->width_increment : px;
598  }
599 
600  if (strcmp(direction, "up") == 0) {
601  floating_con->rect.height += px;
602  } else if (strcmp(direction, "down") == 0 || strcmp(direction, "height") == 0) {
603  floating_con->rect.height += px;
604  } else if (strcmp(direction, "left") == 0) {
605  floating_con->rect.width += px;
606  } else {
607  floating_con->rect.width += px;
608  }
609 
610  floating_check_size(floating_con);
611 
612  /* Did we actually resize anything or did the size constraints prevent us?
613  * If we could not resize, exit now to not move the window. */
614  if (memcmp(&old_rect, &(floating_con->rect), sizeof(Rect)) == 0)
615  return;
616 
617  if (strcmp(direction, "up") == 0) {
618  floating_con->rect.y -= (floating_con->rect.height - old_rect.height);
619  } else if (strcmp(direction, "left") == 0) {
620  floating_con->rect.x -= (floating_con->rect.width - old_rect.width);
621  }
622 
623  /* If this is a scratchpad window, don't auto center it from now on. */
624  if (floating_con->scratchpad_state == SCRATCHPAD_FRESH)
625  floating_con->scratchpad_state = SCRATCHPAD_CHANGED;
626 }
627 
628 static bool cmd_resize_tiling_direction(I3_CMD, Con *current, char *way, char *direction, int ppt) {
629  LOG("tiling resize\n");
630  Con *second = NULL;
631  Con *first = current;
632  direction_t search_direction;
633  if (!strcmp(direction, "left"))
634  search_direction = D_LEFT;
635  else if (!strcmp(direction, "right"))
636  search_direction = D_RIGHT;
637  else if (!strcmp(direction, "up"))
638  search_direction = D_UP;
639  else
640  search_direction = D_DOWN;
641 
642  bool res = resize_find_tiling_participants(&first, &second, search_direction);
643  if (!res) {
644  LOG("No second container in this direction found.\n");
645  ysuccess(false);
646  return false;
647  }
648 
649  /* get the default percentage */
650  int children = con_num_children(first->parent);
651  LOG("ins. %d children\n", children);
652  double percentage = 1.0 / children;
653  LOG("default percentage = %f\n", percentage);
654 
655  /* resize */
656  LOG("second->percent = %f\n", second->percent);
657  LOG("first->percent before = %f\n", first->percent);
658  if (first->percent == 0.0)
659  first->percent = percentage;
660  if (second->percent == 0.0)
661  second->percent = percentage;
662  double new_first_percent = first->percent + ((double)ppt / 100.0);
663  double new_second_percent = second->percent - ((double)ppt / 100.0);
664  LOG("new_first_percent = %f\n", new_first_percent);
665  LOG("new_second_percent = %f\n", new_second_percent);
666  /* Ensure that the new percentages are positive and greater than
667  * 0.05 to have a reasonable minimum size. */
668  if (definitelyGreaterThan(new_first_percent, 0.05, DBL_EPSILON) &&
669  definitelyGreaterThan(new_second_percent, 0.05, DBL_EPSILON)) {
670  first->percent += ((double)ppt / 100.0);
671  second->percent -= ((double)ppt / 100.0);
672  LOG("first->percent after = %f\n", first->percent);
673  LOG("second->percent after = %f\n", second->percent);
674  } else {
675  LOG("Not resizing, already at minimum size\n");
676  }
677 
678  return true;
679 }
680 
681 static bool cmd_resize_tiling_width_height(I3_CMD, Con *current, char *way, char *direction, int ppt) {
682  LOG("width/height resize\n");
683  /* get the appropriate current container (skip stacked/tabbed cons) */
684  while (current->parent->layout == L_STACKED ||
685  current->parent->layout == L_TABBED)
686  current = current->parent;
687 
688  /* Then further go up until we find one with the matching orientation. */
689  orientation_t search_orientation =
690  (strcmp(direction, "width") == 0 ? HORIZ : VERT);
691 
692  while (current->type != CT_WORKSPACE &&
693  current->type != CT_FLOATING_CON &&
694  con_orientation(current->parent) != search_orientation)
695  current = current->parent;
696 
697  /* get the default percentage */
698  int children = con_num_children(current->parent);
699  LOG("ins. %d children\n", children);
700  double percentage = 1.0 / children;
701  LOG("default percentage = %f\n", percentage);
702 
703  orientation_t orientation = con_orientation(current->parent);
704 
705  if ((orientation == HORIZ &&
706  strcmp(direction, "height") == 0) ||
707  (orientation == VERT &&
708  strcmp(direction, "width") == 0)) {
709  LOG("You cannot resize in that direction. Your focus is in a %s split container currently.\n",
710  (orientation == HORIZ ? "horizontal" : "vertical"));
711  ysuccess(false);
712  return false;
713  }
714 
715  if (children == 1) {
716  LOG("This is the only container, cannot resize.\n");
717  ysuccess(false);
718  return false;
719  }
720 
721  /* Ensure all the other children have a percentage set. */
722  Con *child;
723  TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
724  LOG("child->percent = %f (child %p)\n", child->percent, child);
725  if (child->percent == 0.0)
726  child->percent = percentage;
727  }
728 
729  double new_current_percent = current->percent + ((double)ppt / 100.0);
730  double subtract_percent = ((double)ppt / 100.0) / (children - 1);
731  LOG("new_current_percent = %f\n", new_current_percent);
732  LOG("subtract_percent = %f\n", subtract_percent);
733  /* Ensure that the new percentages are positive and greater than
734  * 0.05 to have a reasonable minimum size. */
735  TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
736  if (child == current)
737  continue;
738  if (!definitelyGreaterThan(child->percent - subtract_percent, 0.05, DBL_EPSILON)) {
739  LOG("Not resizing, already at minimum size (child %p would end up with a size of %.f\n", child, child->percent - subtract_percent);
740  ysuccess(false);
741  return false;
742  }
743  }
744  if (!definitelyGreaterThan(new_current_percent, 0.05, DBL_EPSILON)) {
745  LOG("Not resizing, already at minimum size\n");
746  ysuccess(false);
747  return false;
748  }
749 
750  current->percent += ((double)ppt / 100.0);
751  LOG("current->percent after = %f\n", current->percent);
752 
753  TAILQ_FOREACH(child, &(current->parent->nodes_head), nodes) {
754  if (child == current)
755  continue;
756  child->percent -= subtract_percent;
757  LOG("child->percent after (%p) = %f\n", child, child->percent);
758  }
759 
760  return true;
761 }
762 
763 /*
764  * Implementation of 'resize grow|shrink <direction> [<px> px] [or <ppt> ppt]'.
765  *
766  */
767 void cmd_resize(I3_CMD, char *way, char *direction, char *resize_px, char *resize_ppt) {
768  /* resize <grow|shrink> <direction> [<px> px] [or <ppt> ppt] */
769  DLOG("resizing in way %s, direction %s, px %s or ppt %s\n", way, direction, resize_px, resize_ppt);
770  // TODO: We could either handle this in the parser itself as a separate token (and make the stack typed) or we need a better way to convert a string to a number with error checking
771  int px = atoi(resize_px);
772  int ppt = atoi(resize_ppt);
773  if (strcmp(way, "shrink") == 0) {
774  px *= -1;
775  ppt *= -1;
776  }
777 
779 
780  owindow *current;
781  TAILQ_FOREACH(current, &owindows, owindows) {
782  Con *floating_con;
783  if ((floating_con = con_inside_floating(current->con))) {
784  cmd_resize_floating(current_match, cmd_output, way, direction, floating_con, px);
785  } else {
786  if (strcmp(direction, "width") == 0 ||
787  strcmp(direction, "height") == 0) {
788  if (!cmd_resize_tiling_width_height(current_match, cmd_output, current->con, way, direction, ppt))
789  return;
790  } else {
791  if (!cmd_resize_tiling_direction(current_match, cmd_output, current->con, way, direction, ppt))
792  return;
793  }
794  }
795  }
796 
797  cmd_output->needs_tree_render = true;
798  // XXX: default reply for now, make this a better reply
799  ysuccess(true);
800 }
801 
802 /*
803  * Implementation of 'border normal|none|1pixel|toggle|pixel'.
804  *
805  */
806 void cmd_border(I3_CMD, char *border_style_str, char *border_width ) {
807  DLOG("border style should be changed to %s with border width %s\n", border_style_str, border_width);
808  owindow *current;
809 
811 
812  TAILQ_FOREACH(current, &owindows, owindows) {
813  DLOG("matching: %p / %s\n", current->con, current->con->name);
814  int border_style = current->con->border_style;
815  char *end;
816  int tmp_border_width = -1;
817  tmp_border_width = strtol(border_width, &end, 10);
818  if (end == border_width) {
819  /* no valid digits found */
820  tmp_border_width = -1;
821  }
822  if (strcmp(border_style_str, "toggle") == 0) {
823  border_style++;
824  border_style %= 3;
825  if (border_style == BS_NORMAL)
826  tmp_border_width = 2;
827  else if (border_style == BS_NONE)
828  tmp_border_width = 0;
829  else if (border_style == BS_PIXEL)
830  tmp_border_width = 1;
831  } else {
832  if (strcmp(border_style_str, "normal") == 0)
833  border_style = BS_NORMAL;
834  else if (strcmp(border_style_str, "pixel") == 0)
835  border_style = BS_PIXEL;
836  else if (strcmp(border_style_str, "1pixel") == 0){
837  border_style = BS_PIXEL;
838  tmp_border_width = 1;
839  } else if (strcmp(border_style_str, "none") == 0)
840  border_style = BS_NONE;
841  else {
842  ELOG("BUG: called with border_style=%s\n", border_style_str);
843  ysuccess(false);
844  return;
845  }
846  }
847  con_set_border_style(current->con, border_style, tmp_border_width);
848  }
849 
850  cmd_output->needs_tree_render = true;
851  // XXX: default reply for now, make this a better reply
852  ysuccess(true);
853 }
854 
855 /*
856  * Implementation of 'nop <comment>'.
857  *
858  */
859 void cmd_nop(I3_CMD, char *comment) {
860  LOG("-------------------------------------------------\n");
861  LOG(" NOP: %s\n", comment);
862  LOG("-------------------------------------------------\n");
863 }
864 
865 /*
866  * Implementation of 'append_layout <path>'.
867  *
868  */
869 void cmd_append_layout(I3_CMD, char *path) {
870  LOG("Appending layout \"%s\"\n", path);
871  tree_append_json(path);
872 
873  cmd_output->needs_tree_render = true;
874  // XXX: default reply for now, make this a better reply
875  ysuccess(true);
876 }
877 
878 /*
879  * Implementation of 'workspace next|prev|next_on_output|prev_on_output'.
880  *
881  */
882 void cmd_workspace(I3_CMD, char *which) {
883  Con *ws;
884 
885  DLOG("which=%s\n", which);
886 
887  if (strcmp(which, "next") == 0)
888  ws = workspace_next();
889  else if (strcmp(which, "prev") == 0)
890  ws = workspace_prev();
891  else if (strcmp(which, "next_on_output") == 0)
893  else if (strcmp(which, "prev_on_output") == 0)
895  else {
896  ELOG("BUG: called with which=%s\n", which);
897  ysuccess(false);
898  return;
899  }
900 
901  workspace_show(ws);
902 
903  cmd_output->needs_tree_render = true;
904  // XXX: default reply for now, make this a better reply
905  ysuccess(true);
906 }
907 
908 /*
909  * Implementation of 'workspace number <name>'
910  *
911  */
912 void cmd_workspace_number(I3_CMD, char *which) {
913  Con *output, *workspace = NULL;
914 
915  char *endptr = NULL;
916  long parsed_num = strtol(which, &endptr, 10);
917  if (parsed_num == LONG_MIN ||
918  parsed_num == LONG_MAX ||
919  parsed_num < 0 ||
920  endptr == which) {
921  LOG("Could not parse initial part of \"%s\" as a number.\n", which);
922  // TODO: better error message
923  yerror("Could not parse number");
924 
925  return;
926  }
927 
928  TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
929  GREP_FIRST(workspace, output_get_content(output),
930  child->num == parsed_num);
931 
932  if (!workspace) {
933  LOG("There is no workspace with number %ld, creating a new one.\n", parsed_num);
934  ysuccess(true);
935  workspace_show_by_name(which);
936  cmd_output->needs_tree_render = true;
937  return;
938  }
939  if (maybe_back_and_forth(cmd_output, workspace->name))
940  return;
941  workspace_show(workspace);
942 
943  cmd_output->needs_tree_render = true;
944  // XXX: default reply for now, make this a better reply
945  ysuccess(true);
946 }
947 
948 /*
949  * Implementation of 'workspace back_and_forth'.
950  *
951  */
954 
955  cmd_output->needs_tree_render = true;
956  // XXX: default reply for now, make this a better reply
957  ysuccess(true);
958 }
959 
960 /*
961  * Implementation of 'workspace <name>'
962  *
963  */
964 void cmd_workspace_name(I3_CMD, char *name) {
965  if (strncasecmp(name, "__i3_", strlen("__i3_")) == 0) {
966  LOG("You cannot switch to the i3 internal workspaces.\n");
967  ysuccess(false);
968  return;
969  }
970 
971  DLOG("should switch to workspace %s\n", name);
972  if (maybe_back_and_forth(cmd_output, name))
973  return;
975 
976  cmd_output->needs_tree_render = true;
977  // XXX: default reply for now, make this a better reply
978  ysuccess(true);
979 }
980 
981 /*
982  * Implementation of 'mark <mark>'
983  *
984  */
985 void cmd_mark(I3_CMD, char *mark) {
986  DLOG("Clearing all windows which have that mark first\n");
987 
988  Con *con;
990  if (con->mark && strcmp(con->mark, mark) == 0)
991  FREE(con->mark);
992  }
993 
994  DLOG("marking window with str %s\n", mark);
995  owindow *current;
996 
998 
999  TAILQ_FOREACH(current, &owindows, owindows) {
1000  DLOG("matching: %p / %s\n", current->con, current->con->name);
1001  current->con->mark = sstrdup(mark);
1002  }
1003 
1004  cmd_output->needs_tree_render = true;
1005  // XXX: default reply for now, make this a better reply
1006  ysuccess(true);
1007 }
1008 
1009 /*
1010  * Implementation of 'unmark [mark]'
1011  *
1012  */
1013 void cmd_unmark(I3_CMD, char *mark) {
1014  if (mark == NULL) {
1015  Con *con;
1016  TAILQ_FOREACH(con, &all_cons, all_cons) {
1017  FREE(con->mark);
1018  }
1019  DLOG("removed all window marks");
1020  } else {
1021  Con *con;
1022  TAILQ_FOREACH(con, &all_cons, all_cons) {
1023  if (con->mark && strcmp(con->mark, mark) == 0)
1024  FREE(con->mark);
1025  }
1026  DLOG("removed window mark %s\n", mark);
1027  }
1028 
1029  cmd_output->needs_tree_render = true;
1030  // XXX: default reply for now, make this a better reply
1031  ysuccess(true);
1032 }
1033 
1034 /*
1035  * Implementation of 'mode <string>'.
1036  *
1037  */
1038 void cmd_mode(I3_CMD, char *mode) {
1039  DLOG("mode=%s\n", mode);
1040  switch_mode(mode);
1041 
1042  // XXX: default reply for now, make this a better reply
1043  ysuccess(true);
1044 }
1045 
1046 /*
1047  * Implementation of 'move [window|container] [to] output <str>'.
1048  *
1049  */
1050 void cmd_move_con_to_output(I3_CMD, char *name) {
1051  owindow *current;
1052 
1053  DLOG("should move window to output %s\n", name);
1054 
1056 
1057  /* get the output */
1058  Output *current_output = NULL;
1059  Output *output;
1060 
1061  // TODO: fix the handling of criteria
1062  TAILQ_FOREACH(current, &owindows, owindows)
1063  current_output = get_output_of_con(current->con);
1064 
1065  assert(current_output != NULL);
1066 
1067  // TODO: clean this up with commands.spec as soon as we switched away from the lex/yacc command parser
1068  if (strcasecmp(name, "up") == 0)
1069  output = get_output_next_wrap(D_UP, current_output);
1070  else if (strcasecmp(name, "down") == 0)
1071  output = get_output_next_wrap(D_DOWN, current_output);
1072  else if (strcasecmp(name, "left") == 0)
1073  output = get_output_next_wrap(D_LEFT, current_output);
1074  else if (strcasecmp(name, "right") == 0)
1075  output = get_output_next_wrap(D_RIGHT, current_output);
1076  else
1077  output = get_output_by_name(name);
1078 
1079  if (!output) {
1080  LOG("No such output found.\n");
1081  ysuccess(false);
1082  return;
1083  }
1084 
1085  /* get visible workspace on output */
1086  Con *ws = NULL;
1087  GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1088  if (!ws) {
1089  ysuccess(false);
1090  return;
1091  }
1092 
1093  TAILQ_FOREACH(current, &owindows, owindows) {
1094  DLOG("matching: %p / %s\n", current->con, current->con->name);
1095  con_move_to_workspace(current->con, ws, true, false);
1096  }
1097 
1098  cmd_output->needs_tree_render = true;
1099  // XXX: default reply for now, make this a better reply
1100  ysuccess(true);
1101 }
1102 
1103 /*
1104  * Implementation of 'floating enable|disable|toggle'
1105  *
1106  */
1107 void cmd_floating(I3_CMD, char *floating_mode) {
1108  owindow *current;
1109 
1110  DLOG("floating_mode=%s\n", floating_mode);
1111 
1113 
1114  TAILQ_FOREACH(current, &owindows, owindows) {
1115  DLOG("matching: %p / %s\n", current->con, current->con->name);
1116  if (strcmp(floating_mode, "toggle") == 0) {
1117  DLOG("should toggle mode\n");
1118  toggle_floating_mode(current->con, false);
1119  } else {
1120  DLOG("should switch mode to %s\n", floating_mode);
1121  if (strcmp(floating_mode, "enable") == 0) {
1122  floating_enable(current->con, false);
1123  } else {
1124  floating_disable(current->con, false);
1125  }
1126  }
1127  }
1128 
1129  cmd_output->needs_tree_render = true;
1130  // XXX: default reply for now, make this a better reply
1131  ysuccess(true);
1132 }
1133 
1134 /*
1135  * Implementation of 'move workspace to [output] <str>'.
1136  *
1137  */
1139  DLOG("should move workspace to output %s\n", name);
1140 
1142 
1143  owindow *current;
1144  TAILQ_FOREACH(current, &owindows, owindows) {
1145  Output *current_output = get_output_of_con(current->con);
1146  if (!current_output) {
1147  ELOG("Cannot get current output. This is a bug in i3.\n");
1148  ysuccess(false);
1149  return;
1150  }
1151  Output *output = get_output_from_string(current_output, name);
1152  if (!output) {
1153  ELOG("Could not get output from string \"%s\"\n", name);
1154  ysuccess(false);
1155  return;
1156  }
1157 
1158  Con *content = output_get_content(output->con);
1159  LOG("got output %p with content %p\n", output, content);
1160 
1161  Con *previously_visible_ws = TAILQ_FIRST(&(content->nodes_head));
1162  LOG("Previously visible workspace = %p / %s\n", previously_visible_ws, previously_visible_ws->name);
1163 
1164  Con *ws = con_get_workspace(current->con);
1165  LOG("should move workspace %p / %s\n", ws, ws->name);
1166  bool workspace_was_visible = workspace_is_visible(ws);
1167 
1168  if (con_num_children(ws->parent) == 1) {
1169  LOG("Creating a new workspace to replace \"%s\" (last on its output).\n", ws->name);
1170 
1171  /* check if we can find a workspace assigned to this output */
1172  bool used_assignment = false;
1173  struct Workspace_Assignment *assignment;
1175  if (strcmp(assignment->output, current_output->name) != 0)
1176  continue;
1177 
1178  /* check if this workspace is already attached to the tree */
1179  Con *workspace = NULL, *out;
1180  TAILQ_FOREACH(out, &(croot->nodes_head), nodes)
1181  GREP_FIRST(workspace, output_get_content(out),
1182  !strcasecmp(child->name, assignment->name));
1183  if (workspace != NULL)
1184  continue;
1185 
1186  /* so create the workspace referenced to by this assignment */
1187  LOG("Creating workspace from assignment %s.\n", assignment->name);
1188  workspace_get(assignment->name, NULL);
1189  used_assignment = true;
1190  break;
1191  }
1192 
1193  /* if we couldn't create the workspace using an assignment, create
1194  * it on the output */
1195  if (!used_assignment)
1196  create_workspace_on_output(current_output, ws->parent);
1197 
1198  /* notify the IPC listeners */
1199  ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"init\"}");
1200  }
1201  DLOG("Detaching\n");
1202 
1203  /* detach from the old output and attach to the new output */
1204  Con *old_content = ws->parent;
1205  con_detach(ws);
1206  if (workspace_was_visible) {
1207  /* The workspace which we just detached was visible, so focus
1208  * the next one in the focus-stack. */
1209  Con *focus_ws = TAILQ_FIRST(&(old_content->focus_head));
1210  LOG("workspace was visible, focusing %p / %s now\n", focus_ws, focus_ws->name);
1211  workspace_show(focus_ws);
1212  }
1213  con_attach(ws, content, false);
1214 
1215  /* fix the coordinates of the floating containers */
1216  Con *floating_con;
1217  TAILQ_FOREACH(floating_con, &(ws->floating_head), floating_windows)
1218  floating_fix_coordinates(floating_con, &(old_content->rect), &(content->rect));
1219 
1220  ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"move\"}");
1221  if (workspace_was_visible) {
1222  /* Focus the moved workspace on the destination output. */
1223  workspace_show(ws);
1224  }
1225 
1226  /* NB: We cannot simply work with previously_visible_ws since it might
1227  * have been cleaned up by workspace_show() already, depending on the
1228  * focus order/number of other workspaces on the output.
1229  * Instead, we loop through the available workspaces and only work with
1230  * previously_visible_ws if we still find it. */
1231  TAILQ_FOREACH(ws, &(content->nodes_head), nodes) {
1232  if (ws != previously_visible_ws)
1233  continue;
1234 
1235  /* Call the on_remove_child callback of the workspace which previously
1236  * was visible on the destination output. Since it is no longer
1237  * visible, it might need to get cleaned up. */
1238  CALL(previously_visible_ws, on_remove_child);
1239  break;
1240  }
1241  }
1242 
1243  cmd_output->needs_tree_render = true;
1244  // XXX: default reply for now, make this a better reply
1245  ysuccess(true);
1246 }
1247 
1248 /*
1249  * Implementation of 'split v|h|vertical|horizontal'.
1250  *
1251  */
1252 void cmd_split(I3_CMD, char *direction) {
1253  owindow *current;
1254  /* TODO: use matches */
1255  LOG("splitting in direction %c\n", direction[0]);
1257  tree_split(focused, (direction[0] == 'v' ? VERT : HORIZ));
1258  else {
1259  TAILQ_FOREACH(current, &owindows, owindows) {
1260  DLOG("matching: %p / %s\n", current->con, current->con->name);
1261  tree_split(current->con, (direction[0] == 'v' ? VERT : HORIZ));
1262  }
1263  }
1264 
1265  cmd_output->needs_tree_render = true;
1266  // XXX: default reply for now, make this a better reply
1267  ysuccess(true);
1268 }
1269 
1270 /*
1271  * Implementation of 'kill [window|client]'.
1272  *
1273  */
1274 void cmd_kill(I3_CMD, char *kill_mode_str) {
1275  if (kill_mode_str == NULL)
1276  kill_mode_str = "window";
1277  owindow *current;
1278 
1279  DLOG("kill_mode=%s\n", kill_mode_str);
1280 
1281  int kill_mode;
1282  if (strcmp(kill_mode_str, "window") == 0)
1283  kill_mode = KILL_WINDOW;
1284  else if (strcmp(kill_mode_str, "client") == 0)
1285  kill_mode = KILL_CLIENT;
1286  else {
1287  ELOG("BUG: called with kill_mode=%s\n", kill_mode_str);
1288  ysuccess(false);
1289  return;
1290  }
1291 
1292  /* check if the match is empty, not if the result is empty */
1294  tree_close_con(kill_mode);
1295  else {
1296  TAILQ_FOREACH(current, &owindows, owindows) {
1297  DLOG("matching: %p / %s\n", current->con, current->con->name);
1298  tree_close(current->con, kill_mode, false, false);
1299  }
1300  }
1301 
1302  cmd_output->needs_tree_render = true;
1303  // XXX: default reply for now, make this a better reply
1304  ysuccess(true);
1305 }
1306 
1307 /*
1308  * Implementation of 'exec [--no-startup-id] <command>'.
1309  *
1310  */
1311 void cmd_exec(I3_CMD, char *nosn, char *command) {
1312  bool no_startup_id = (nosn != NULL);
1313 
1314  DLOG("should execute %s, no_startup_id = %d\n", command, no_startup_id);
1315  start_application(command, no_startup_id);
1316 
1317  // XXX: default reply for now, make this a better reply
1318  ysuccess(true);
1319 }
1320 
1321 /*
1322  * Implementation of 'focus left|right|up|down'.
1323  *
1324  */
1325 void cmd_focus_direction(I3_CMD, char *direction) {
1326  DLOG("direction = *%s*\n", direction);
1327 
1328  if (strcmp(direction, "left") == 0)
1329  tree_next('p', HORIZ);
1330  else if (strcmp(direction, "right") == 0)
1331  tree_next('n', HORIZ);
1332  else if (strcmp(direction, "up") == 0)
1333  tree_next('p', VERT);
1334  else if (strcmp(direction, "down") == 0)
1335  tree_next('n', VERT);
1336  else {
1337  ELOG("Invalid focus direction (%s)\n", direction);
1338  ysuccess(false);
1339  return;
1340  }
1341 
1342  cmd_output->needs_tree_render = true;
1343  // XXX: default reply for now, make this a better reply
1344  ysuccess(true);
1345 }
1346 
1347 /*
1348  * Implementation of 'focus tiling|floating|mode_toggle'.
1349  *
1350  */
1351 void cmd_focus_window_mode(I3_CMD, char *window_mode) {
1352  DLOG("window_mode = %s\n", window_mode);
1353 
1354  Con *ws = con_get_workspace(focused);
1355  Con *current;
1356  if (ws != NULL) {
1357  if (strcmp(window_mode, "mode_toggle") == 0) {
1358  current = TAILQ_FIRST(&(ws->focus_head));
1359  if (current != NULL && current->type == CT_FLOATING_CON)
1360  window_mode = "tiling";
1361  else window_mode = "floating";
1362  }
1363  TAILQ_FOREACH(current, &(ws->focus_head), focused) {
1364  if ((strcmp(window_mode, "floating") == 0 && current->type != CT_FLOATING_CON) ||
1365  (strcmp(window_mode, "tiling") == 0 && current->type == CT_FLOATING_CON))
1366  continue;
1367 
1368  con_focus(con_descend_focused(current));
1369  break;
1370  }
1371  }
1372 
1373  cmd_output->needs_tree_render = true;
1374  // XXX: default reply for now, make this a better reply
1375  ysuccess(true);
1376 }
1377 
1378 /*
1379  * Implementation of 'focus parent|child'.
1380  *
1381  */
1382 void cmd_focus_level(I3_CMD, char *level) {
1383  DLOG("level = %s\n", level);
1384  bool success = false;
1385 
1386  /* Focusing the parent can only be allowed if the newly
1387  * focused container won't escape the fullscreen container. */
1388  if (strcmp(level, "parent") == 0) {
1389  if (focused && focused->parent) {
1391  success = level_up();
1392  else
1393  ELOG("'focus parent': Currently in fullscreen, not going up\n");
1394  }
1395  }
1396 
1397  /* Focusing a child should always be allowed. */
1398  else success = level_down();
1399 
1400  cmd_output->needs_tree_render = success;
1401  // XXX: default reply for now, make this a better reply
1402  ysuccess(success);
1403 }
1404 
1405 /*
1406  * Implementation of 'focus'.
1407  *
1408  */
1410  DLOG("current_match = %p\n", current_match);
1411 
1413  ELOG("You have to specify which window/container should be focused.\n");
1414  ELOG("Example: [class=\"urxvt\" title=\"irssi\"] focus\n");
1415 
1416  yerror("You have to specify which window/container should be focused");
1417 
1418  return;
1419  }
1420 
1421  Con *__i3_scratch = workspace_get("__i3_scratch", NULL);
1422  int count = 0;
1423  owindow *current;
1424  TAILQ_FOREACH(current, &owindows, owindows) {
1425  Con *ws = con_get_workspace(current->con);
1426  /* If no workspace could be found, this was a dock window.
1427  * Just skip it, you cannot focus dock windows. */
1428  if (!ws)
1429  continue;
1430 
1431  /* Check the fullscreen focus constraints. */
1432  if (!con_fullscreen_permits_focusing(current->con)) {
1433  LOG("Cannot change focus while in fullscreen mode (fullscreen rules).\n");
1434  ysuccess(false);
1435  return;
1436  }
1437 
1438  /* In case this is a scratchpad window, call scratchpad_show(). */
1439  if (ws == __i3_scratch) {
1440  scratchpad_show(current->con);
1441  count++;
1442  /* While for the normal focus case we can change focus multiple
1443  * times and only a single window ends up focused, we could show
1444  * multiple scratchpad windows. So, rather break here. */
1445  break;
1446  }
1447 
1448  /* If the container is not on the current workspace,
1449  * workspace_show() will switch to a different workspace and (if
1450  * enabled) trigger a mouse pointer warp to the currently focused
1451  * container (!) on the target workspace.
1452  *
1453  * Therefore, before calling workspace_show(), we make sure that
1454  * 'current' will be focused on the workspace. However, we cannot
1455  * just con_focus(current) because then the pointer will not be
1456  * warped at all (the code thinks we are already there).
1457  *
1458  * So we focus 'current' to make it the currently focused window of
1459  * the target workspace, then revert focus. */
1460  Con *currently_focused = focused;
1461  con_focus(current->con);
1462  con_focus(currently_focused);
1463 
1464  /* Now switch to the workspace, then focus */
1465  workspace_show(ws);
1466  LOG("focusing %p / %s\n", current->con, current->con->name);
1467  con_focus(current->con);
1468  count++;
1469  }
1470 
1471  if (count > 1)
1472  LOG("WARNING: Your criteria for the focus command matches %d containers, "
1473  "while only exactly one container can be focused at a time.\n", count);
1474 
1475  cmd_output->needs_tree_render = true;
1476  // XXX: default reply for now, make this a better reply
1477  ysuccess(true);
1478 }
1479 
1480 /*
1481  * Implementation of 'fullscreen [global]'.
1482  *
1483  */
1484 void cmd_fullscreen(I3_CMD, char *fullscreen_mode) {
1485  if (fullscreen_mode == NULL)
1486  fullscreen_mode = "output";
1487  DLOG("toggling fullscreen, mode = %s\n", fullscreen_mode);
1488  owindow *current;
1489 
1491 
1492  TAILQ_FOREACH(current, &owindows, owindows) {
1493  DLOG("matching: %p / %s\n", current->con, current->con->name);
1494  con_toggle_fullscreen(current->con, (strcmp(fullscreen_mode, "global") == 0 ? CF_GLOBAL : CF_OUTPUT));
1495  }
1496 
1497  cmd_output->needs_tree_render = true;
1498  // XXX: default reply for now, make this a better reply
1499  ysuccess(true);
1500 }
1501 
1502 /*
1503  * Implementation of 'move <direction> [<pixels> [px]]'.
1504  *
1505  */
1506 void cmd_move_direction(I3_CMD, char *direction, char *move_px) {
1507  // TODO: We could either handle this in the parser itself as a separate token (and make the stack typed) or we need a better way to convert a string to a number with error checking
1508  int px = atoi(move_px);
1509 
1510  /* TODO: make 'move' work with criteria. */
1511  DLOG("moving in direction %s, px %s\n", direction, move_px);
1512  if (con_is_floating(focused)) {
1513  DLOG("floating move with %d pixels\n", px);
1514  Rect newrect = focused->parent->rect;
1515  if (strcmp(direction, "left") == 0) {
1516  newrect.x -= px;
1517  } else if (strcmp(direction, "right") == 0) {
1518  newrect.x += px;
1519  } else if (strcmp(direction, "up") == 0) {
1520  newrect.y -= px;
1521  } else if (strcmp(direction, "down") == 0) {
1522  newrect.y += px;
1523  }
1524  floating_reposition(focused->parent, newrect);
1525  } else {
1526  tree_move((strcmp(direction, "right") == 0 ? D_RIGHT :
1527  (strcmp(direction, "left") == 0 ? D_LEFT :
1528  (strcmp(direction, "up") == 0 ? D_UP :
1529  D_DOWN))));
1530  cmd_output->needs_tree_render = true;
1531  }
1532 
1533  // XXX: default reply for now, make this a better reply
1534  ysuccess(true);
1535 }
1536 
1537 /*
1538  * Implementation of 'layout default|stacked|stacking|tabbed|splitv|splith'.
1539  *
1540  */
1541 void cmd_layout(I3_CMD, char *layout_str) {
1542  if (strcmp(layout_str, "stacking") == 0)
1543  layout_str = "stacked";
1544  owindow *current;
1545  layout_t layout;
1546  /* default is a special case which will be handled in con_set_layout(). */
1547  if (strcmp(layout_str, "default") == 0)
1548  layout = L_DEFAULT;
1549  else if (strcmp(layout_str, "stacked") == 0)
1550  layout = L_STACKED;
1551  else if (strcmp(layout_str, "tabbed") == 0)
1552  layout = L_TABBED;
1553  else if (strcmp(layout_str, "splitv") == 0)
1554  layout = L_SPLITV;
1555  else if (strcmp(layout_str, "splith") == 0)
1556  layout = L_SPLITH;
1557  else {
1558  ELOG("Unknown layout \"%s\", this is a mismatch between code and parser spec.\n", layout_str);
1559  return;
1560  }
1561 
1562  DLOG("changing layout to %s (%d)\n", layout_str, layout);
1563 
1564  /* check if the match is empty, not if the result is empty */
1566  con_set_layout(focused, layout);
1567  else {
1568  TAILQ_FOREACH(current, &owindows, owindows) {
1569  DLOG("matching: %p / %s\n", current->con, current->con->name);
1570  con_set_layout(current->con, layout);
1571  }
1572  }
1573 
1574  cmd_output->needs_tree_render = true;
1575  // XXX: default reply for now, make this a better reply
1576  ysuccess(true);
1577 }
1578 
1579 /*
1580  * Implementation of 'layout toggle [all|split]'.
1581  *
1582  */
1583 void cmd_layout_toggle(I3_CMD, char *toggle_mode) {
1584  owindow *current;
1585 
1586  if (toggle_mode == NULL)
1587  toggle_mode = "default";
1588 
1589  DLOG("toggling layout (mode = %s)\n", toggle_mode);
1590 
1591  /* check if the match is empty, not if the result is empty */
1593  con_toggle_layout(focused, toggle_mode);
1594  else {
1595  TAILQ_FOREACH(current, &owindows, owindows) {
1596  DLOG("matching: %p / %s\n", current->con, current->con->name);
1597  con_toggle_layout(current->con, toggle_mode);
1598  }
1599  }
1600 
1601  cmd_output->needs_tree_render = true;
1602  // XXX: default reply for now, make this a better reply
1603  ysuccess(true);
1604 }
1605 
1606 /*
1607  * Implementation of 'exit'.
1608  *
1609  */
1611  LOG("Exiting due to user command.\n");
1612  xcb_disconnect(conn);
1613  exit(0);
1614 
1615  /* unreached */
1616 }
1617 
1618 /*
1619  * Implementation of 'reload'.
1620  *
1621  */
1623  LOG("reloading\n");
1626  load_configuration(conn, NULL, true);
1627  x_set_i3_atoms();
1628  /* Send an IPC event just in case the ws names have changed */
1629  ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"reload\"}");
1630  /* Send an update event for the barconfig just in case it has changed */
1631  update_barconfig();
1632 
1633  // XXX: default reply for now, make this a better reply
1634  ysuccess(true);
1635 }
1636 
1637 /*
1638  * Implementation of 'restart'.
1639  *
1640  */
1642  LOG("restarting i3\n");
1643  i3_restart(false);
1644 
1645  // XXX: default reply for now, make this a better reply
1646  ysuccess(true);
1647 }
1648 
1649 /*
1650  * Implementation of 'open'.
1651  *
1652  */
1654  LOG("opening new container\n");
1655  Con *con = tree_open_con(NULL, NULL);
1656  con->layout = L_SPLITH;
1657  con_focus(con);
1658 
1659  y(map_open);
1660  ystr("success");
1661  y(bool, true);
1662  ystr("id");
1663  y(integer, (long int)con);
1664  y(map_close);
1665 
1666  cmd_output->needs_tree_render = true;
1667 }
1668 
1669 /*
1670  * Implementation of 'focus output <output>'.
1671  *
1672  */
1674  owindow *current;
1675 
1676  DLOG("name = %s\n", name);
1677 
1679 
1680  /* get the output */
1681  Output *current_output = NULL;
1682  Output *output;
1683 
1684  TAILQ_FOREACH(current, &owindows, owindows)
1685  current_output = get_output_of_con(current->con);
1686  assert(current_output != NULL);
1687 
1688  output = get_output_from_string(current_output, name);
1689 
1690  if (!output) {
1691  LOG("No such output found.\n");
1692  ysuccess(false);
1693  return;
1694  }
1695 
1696  /* get visible workspace on output */
1697  Con *ws = NULL;
1698  GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1699  if (!ws) {
1700  ysuccess(false);
1701  return;
1702  }
1703 
1704  workspace_show(ws);
1705 
1706  cmd_output->needs_tree_render = true;
1707  // XXX: default reply for now, make this a better reply
1708  ysuccess(true);
1709 }
1710 
1711 /*
1712  * Implementation of 'move [window|container] [to] [absolute] position <px> [px] <px> [px]
1713  *
1714  */
1715 void cmd_move_window_to_position(I3_CMD, char *method, char *cx, char *cy) {
1716 
1717  int x = atoi(cx);
1718  int y = atoi(cy);
1719 
1720  if (!con_is_floating(focused)) {
1721  ELOG("Cannot change position. The window/container is not floating\n");
1722  yerror("Cannot change position. The window/container is not floating.");
1723  return;
1724  }
1725 
1726  if (strcmp(method, "absolute") == 0) {
1727  focused->parent->rect.x = x;
1728  focused->parent->rect.y = y;
1729 
1730  DLOG("moving to absolute position %d %d\n", x, y);
1732  cmd_output->needs_tree_render = true;
1733  }
1734 
1735  if (strcmp(method, "position") == 0) {
1736  Rect newrect = focused->parent->rect;
1737 
1738  DLOG("moving to position %d %d\n", x, y);
1739  newrect.x = x;
1740  newrect.y = y;
1741 
1742  floating_reposition(focused->parent, newrect);
1743  }
1744 
1745  // XXX: default reply for now, make this a better reply
1746  ysuccess(true);
1747 }
1748 
1749 /*
1750  * Implementation of 'move [window|container] [to] [absolute] position center
1751  *
1752  */
1753 void cmd_move_window_to_center(I3_CMD, char *method) {
1754 
1755  if (!con_is_floating(focused)) {
1756  ELOG("Cannot change position. The window/container is not floating\n");
1757  yerror("Cannot change position. The window/container is not floating.");
1758  return;
1759  }
1760 
1761  if (strcmp(method, "absolute") == 0) {
1762  Rect *rect = &focused->parent->rect;
1763 
1764  DLOG("moving to absolute center\n");
1765  rect->x = croot->rect.width/2 - rect->width/2;
1766  rect->y = croot->rect.height/2 - rect->height/2;
1767 
1769  cmd_output->needs_tree_render = true;
1770  }
1771 
1772  if (strcmp(method, "position") == 0) {
1773  Rect *wsrect = &con_get_workspace(focused)->rect;
1774  Rect newrect = focused->parent->rect;
1775 
1776  DLOG("moving to center\n");
1777  newrect.x = wsrect->width/2 - newrect.width/2;
1778  newrect.y = wsrect->height/2 - newrect.height/2;
1779 
1780  floating_reposition(focused->parent, newrect);
1781  }
1782 
1783  // XXX: default reply for now, make this a better reply
1784  ysuccess(true);
1785 }
1786 
1787 /*
1788  * Implementation of 'move scratchpad'.
1789  *
1790  */
1792  DLOG("should move window to scratchpad\n");
1793  owindow *current;
1794 
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  */
1812  DLOG("should show scratchpad window\n");
1813  owindow *current;
1814 
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 'rename workspace [<name>] to <name>'
1831  *
1832  */
1833 void cmd_rename_workspace(I3_CMD, char *old_name, char *new_name) {
1834  if (old_name) {
1835  LOG("Renaming workspace \"%s\" to \"%s\"\n", old_name, new_name);
1836  } else {
1837  LOG("Renaming current workspace to \"%s\"\n", new_name);
1838  }
1839 
1840  Con *output, *workspace = NULL;
1841  if (old_name) {
1842  TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
1843  GREP_FIRST(workspace, output_get_content(output),
1844  !strcasecmp(child->name, old_name));
1845  } else {
1846  workspace = con_get_workspace(focused);
1847  }
1848 
1849  if (!workspace) {
1850  // TODO: we should include the old workspace name here and use yajl for
1851  // generating the reply.
1852  // TODO: better error message
1853  yerror("Old workspace not found");
1854  return;
1855  }
1856 
1857  Con *check_dest = NULL;
1858  TAILQ_FOREACH(output, &(croot->nodes_head), nodes)
1859  GREP_FIRST(check_dest, output_get_content(output),
1860  !strcasecmp(child->name, new_name));
1861 
1862  if (check_dest != NULL) {
1863  // TODO: we should include the new workspace name here and use yajl for
1864  // generating the reply.
1865  // TODO: better error message
1866  yerror("New workspace already exists");
1867  return;
1868  }
1869 
1870  /* Change the name and try to parse it as a number. */
1871  FREE(workspace->name);
1872  workspace->name = sstrdup(new_name);
1873  char *endptr = NULL;
1874  long parsed_num = strtol(new_name, &endptr, 10);
1875  if (parsed_num == LONG_MIN ||
1876  parsed_num == LONG_MAX ||
1877  parsed_num < 0 ||
1878  endptr == new_name)
1879  workspace->num = -1;
1880  else workspace->num = parsed_num;
1881  LOG("num = %d\n", workspace->num);
1882 
1883  /* By re-attaching, the sort order will be correct afterwards. */
1884  Con *previously_focused = focused;
1885  Con *parent = workspace->parent;
1886  con_detach(workspace);
1887  con_attach(workspace, parent, false);
1888  /* Restore the previous focus since con_attach messes with the focus. */
1889  con_focus(previously_focused);
1890 
1891  cmd_output->needs_tree_render = true;
1892  ysuccess(true);
1893 
1894  ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"rename\"}");
1895 }
1896 
1897 /*
1898  * Implementation of 'bar mode dock|hide|invisible|toggle [<bar_id>]'
1899  *
1900  */
1901 bool cmd_bar_mode(char *bar_mode, char *bar_id) {
1902  int mode = M_DOCK;
1903  bool toggle = false;
1904  if (strcmp(bar_mode, "dock") == 0)
1905  mode = M_DOCK;
1906  else if (strcmp(bar_mode, "hide") == 0)
1907  mode = M_HIDE;
1908  else if (strcmp(bar_mode, "invisible") == 0)
1909  mode = M_INVISIBLE;
1910  else if (strcmp(bar_mode, "toggle") == 0)
1911  toggle = true;
1912  else {
1913  ELOG("Unknown bar mode \"%s\", this is a mismatch between code and parser spec.\n", bar_mode);
1914  return false;
1915  }
1916 
1917  bool changed_sth = false;
1918  Barconfig *current = NULL;
1919  TAILQ_FOREACH(current, &barconfigs, configs) {
1920  if (bar_id && strcmp(current->id, bar_id) != 0)
1921  continue;
1922 
1923  if (toggle)
1924  mode = (current->mode + 1) % 2;
1925 
1926  DLOG("Changing bar mode of bar_id '%s' to '%s (%d)'\n", current->id, bar_mode, mode);
1927  current->mode = mode;
1928  changed_sth = true;
1929 
1930  if (bar_id)
1931  break;
1932  }
1933 
1934  if (bar_id && !changed_sth) {
1935  DLOG("Changing bar mode of bar_id %s failed, bar_id not found.\n", bar_id);
1936  return false;
1937  }
1938 
1939  return true;
1940 }
1941 
1942 /*
1943  * Implementation of 'bar hidden_state hide|show|toggle [<bar_id>]'
1944  *
1945  */
1946 bool cmd_bar_hidden_state(char *bar_hidden_state, char *bar_id) {
1947  int hidden_state = S_SHOW;
1948  bool toggle = false;
1949  if (strcmp(bar_hidden_state, "hide") == 0)
1950  hidden_state = S_HIDE;
1951  else if (strcmp(bar_hidden_state, "show") == 0)
1952  hidden_state = S_SHOW;
1953  else if (strcmp(bar_hidden_state, "toggle") == 0)
1954  toggle = true;
1955  else {
1956  ELOG("Unknown bar state \"%s\", this is a mismatch between code and parser spec.\n", bar_hidden_state);
1957  return false;
1958  }
1959 
1960  bool changed_sth = false;
1961  Barconfig *current = NULL;
1962  TAILQ_FOREACH(current, &barconfigs, configs) {
1963  if (bar_id && strcmp(current->id, bar_id) != 0)
1964  continue;
1965 
1966  if (toggle)
1967  hidden_state = (current->hidden_state + 1) % 2;
1968 
1969  DLOG("Changing bar hidden_state of bar_id '%s' to '%s (%d)'\n", current->id, bar_hidden_state, hidden_state);
1970  current->hidden_state = hidden_state;
1971  changed_sth = true;
1972 
1973  if (bar_id)
1974  break;
1975  }
1976 
1977  if (bar_id && !changed_sth) {
1978  DLOG("Changing bar hidden_state of bar_id %s failed, bar_id not found.\n", bar_id);
1979  return false;
1980  }
1981 
1982  return true;
1983 }
1984 
1985 /*
1986  * Implementation of 'bar (hidden_state hide|show|toggle)|(mode dock|hide|invisible|toggle) [<bar_id>]'
1987  *
1988  */
1989 void cmd_bar(I3_CMD, char *bar_type, char *bar_value, char *bar_id) {
1990  bool ret;
1991  if (strcmp(bar_type, "mode") == 0)
1992  ret = cmd_bar_mode(bar_value, bar_id);
1993  else if (strcmp(bar_type, "hidden_state") == 0)
1994  ret = cmd_bar_hidden_state(bar_value, bar_id);
1995  else {
1996  ELOG("Unknown bar option type \"%s\", this is a mismatch between code and parser spec.\n", bar_type);
1997  ret = false;
1998  }
1999 
2000  ysuccess(ret);
2001  if (!ret)
2002  return;
2003 
2004  update_barconfig();
2005 }
2006 
2007 /*
2008  * Implementation of 'shmlog <size>|toggle|on|off'
2009  *
2010  */
2011 void cmd_shmlog(I3_CMD, char *argument) {
2012  if (!strcmp(argument,"toggle"))
2013  /* Toggle shm log, if size is not 0. If it is 0, set it to default. */
2015  else if (!strcmp(argument, "on"))
2017  else if (!strcmp(argument, "off"))
2018  shmlog_size = 0;
2019  else {
2020  /* If shm logging now, restart logging with the new size. */
2021  if (shmlog_size > 0) {
2022  shmlog_size = 0;
2023  LOG("Restarting shm logging...\n");
2024  init_logging();
2025  }
2026  shmlog_size = atoi(argument);
2027  /* Make a weakly attempt at ensuring the argument is valid. */
2028  if (shmlog_size <= 0)
2030  }
2031  LOG("%s shm logging\n", shmlog_size > 0 ? "Enabling" : "Disabling");
2032  init_logging();
2034  // XXX: default reply for now, make this a better reply
2035  ysuccess(true);
2036 }
2037 
2038 /*
2039  * Implementation of 'debuglog toggle|on|off'
2040  *
2041  */
2042 void cmd_debuglog(I3_CMD, char *argument) {
2043  bool logging = get_debug_logging();
2044  if (!strcmp(argument,"toggle")) {
2045  LOG("%s debug logging\n", logging ? "Disabling" : "Enabling");
2046  set_debug_logging(!logging);
2047  } else if (!strcmp(argument, "on") && !logging) {
2048  LOG("Enabling debug logging\n");
2049  set_debug_logging(true);
2050  } else if (!strcmp(argument, "off") && logging) {
2051  LOG("Disabling debug logging\n");
2052  set_debug_logging(false);
2053  }
2054  // XXX: default reply for now, make this a better reply
2055  ysuccess(true);
2056 }