2 * vim:ts=4:sw=4:expandtab
4 * i3 - an improved dynamic tiling window manager
5 * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
7 * con.c: Functions which deal with containers directly (creating containers,
8 * searching containers, getting specific properties from containers,
14 #include "yajl_utils.h"
16 static void con_on_remove_child(Con *con);
19 * force parent split containers to be redrawn
22 void con_force_split_parents_redraw(Con *con) {
25 while (parent != NULL && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
26 if (!con_is_leaf(parent)) {
27 FREE(parent->deco_render_params);
30 parent = parent->parent;
35 * Create a new container (and attach it to the given parent, if not NULL).
36 * This function only initializes the data structures.
39 Con *con_new_skeleton(Con *parent, i3Window *window) {
40 Con *new = scalloc(1, sizeof(Con));
41 new->on_remove_child = con_on_remove_child;
42 TAILQ_INSERT_TAIL(&all_cons, new, all_cons);
45 new->border_style = config.default_border;
46 new->current_border_width = -1;
48 new->depth = window->depth;
49 new->window->aspect_ratio = 0.0;
51 new->depth = root_depth;
53 DLOG("opening window\n");
55 TAILQ_INIT(&(new->floating_head));
56 TAILQ_INIT(&(new->nodes_head));
57 TAILQ_INIT(&(new->focus_head));
58 TAILQ_INIT(&(new->swallow_head));
59 TAILQ_INIT(&(new->marks_head));
62 con_attach(new, parent, false);
67 /* A wrapper for con_new_skeleton, to retain the old con_new behaviour
70 Con *con_new(Con *parent, i3Window *window) {
71 Con *new = con_new_skeleton(parent, window);
77 * Frees the specified container.
80 void con_free(Con *con) {
82 FREE(con->deco_render_params);
83 TAILQ_REMOVE(&all_cons, con, all_cons);
84 while (!TAILQ_EMPTY(&(con->swallow_head))) {
85 Match *match = TAILQ_FIRST(&(con->swallow_head));
86 TAILQ_REMOVE(&(con->swallow_head), match, matches);
90 while (!TAILQ_EMPTY(&(con->marks_head))) {
91 mark_t *mark = TAILQ_FIRST(&(con->marks_head));
92 TAILQ_REMOVE(&(con->marks_head), mark, marks);
97 DLOG("con %p freed\n", con);
100 static void _con_attach(Con *con, Con *parent, Con *previous, bool ignore_focus) {
101 con->parent = parent;
103 Con *current = previous;
104 struct nodes_head *nodes_head = &(parent->nodes_head);
105 struct focus_head *focus_head = &(parent->focus_head);
107 /* Workspaces are handled differently: they need to be inserted at the
109 if (con->type == CT_WORKSPACE) {
110 DLOG("it's a workspace. num = %d\n", con->num);
111 if (con->num == -1 || TAILQ_EMPTY(nodes_head)) {
112 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
114 current = TAILQ_FIRST(nodes_head);
115 if (con->num < current->num) {
116 /* we need to insert the container at the beginning */
117 TAILQ_INSERT_HEAD(nodes_head, con, nodes);
119 while (current->num != -1 && con->num > current->num) {
120 current = TAILQ_NEXT(current, nodes);
121 if (current == TAILQ_END(nodes_head)) {
126 /* we need to insert con after current, if current is not NULL */
128 TAILQ_INSERT_BEFORE(current, con, nodes);
130 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
133 goto add_to_focus_head;
136 if (con->type == CT_FLOATING_CON) {
137 DLOG("Inserting into floating containers\n");
138 TAILQ_INSERT_TAIL(&(parent->floating_head), con, floating_windows);
141 /* Get the first tiling container in focus stack */
142 TAILQ_FOREACH(loop, &(parent->focus_head), focused) {
143 if (loop->type == CT_FLOATING_CON)
150 /* When the container is not a split container (but contains a window)
151 * and is attached to a workspace, we check if the user configured a
152 * workspace_layout. This is done in workspace_attach_to, which will
153 * provide us with the container to which we should attach (either the
154 * workspace or a new split container with the configured
157 if (con->window != NULL &&
158 parent->type == CT_WORKSPACE &&
159 parent->workspace_layout != L_DEFAULT) {
160 DLOG("Parent is a workspace. Applying default layout...\n");
161 Con *target = workspace_attach_to(parent);
163 /* Attach the original con to this new split con instead */
164 nodes_head = &(target->nodes_head);
165 focus_head = &(target->focus_head);
166 con->parent = target;
172 /* Insert the container after the tiling container, if found.
173 * When adding to a CT_OUTPUT, just append one after another. */
174 if (current != NULL && parent->type != CT_OUTPUT) {
175 DLOG("Inserting con = %p after con %p\n", con, current);
176 TAILQ_INSERT_AFTER(nodes_head, current, con, nodes);
178 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
182 /* We insert to the TAIL because con_focus() will correct this.
183 * This way, we have the option to insert Cons without having
185 TAILQ_INSERT_TAIL(focus_head, con, focused);
186 con_force_split_parents_redraw(con);
190 * Attaches the given container to the given parent. This happens when moving
191 * a container or when inserting a new container at a specific place in the
194 * ignore_focus is to just insert the Con at the end (useful when creating a
195 * new split container *around* some containers, that is, detaching and
196 * attaching them in order without wanting to mess with the focus in between).
199 void con_attach(Con *con, Con *parent, bool ignore_focus) {
200 _con_attach(con, parent, NULL, ignore_focus);
204 * Detaches the given container from its current parent
207 void con_detach(Con *con) {
208 con_force_split_parents_redraw(con);
209 if (con->type == CT_FLOATING_CON) {
210 TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
211 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
213 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
214 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
219 * Sets input focus to the given container. Will be updated in X11 in the next
220 * run of x_push_changes().
223 void con_focus(Con *con) {
225 DLOG("con_focus = %p\n", con);
227 /* 1: set focused-pointer to the new con */
228 /* 2: exchange the position of the container in focus stack of the parent all the way up */
229 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
230 TAILQ_INSERT_HEAD(&(con->parent->focus_head), con, focused);
231 if (con->parent->parent != NULL)
232 con_focus(con->parent);
235 /* We can't blindly reset non-leaf containers since they might have
236 * other urgent children. Therefore we only reset leafs and propagate
237 * the changes upwards via con_update_parents_urgency() which does proper
238 * checks before resetting the urgency.
240 if (con->urgent && con_is_leaf(con)) {
241 con_set_urgency(con, false);
242 con_update_parents_urgency(con);
243 workspace_update_urgent_flag(con_get_workspace(con));
244 ipc_send_window_event("urgent", con);
249 * Raise container to the top if it is floating or inside some floating
253 static void con_raise(Con *con) {
254 Con *floating = con_inside_floating(con);
256 floating_raise_con(floating);
261 * Sets input focus to the given container and raises it to the top.
264 void con_activate(Con *con) {
270 * Closes the given container.
273 void con_close(Con *con, kill_window_t kill_window) {
275 DLOG("Closing con = %p.\n", con);
277 /* We never close output or root containers. */
278 if (con->type == CT_OUTPUT || con->type == CT_ROOT) {
279 DLOG("con = %p is of type %d, not closing anything.\n", con, con->type);
283 if (con->type == CT_WORKSPACE) {
284 DLOG("con = %p is a workspace, closing all children instead.\n", con);
285 Con *child, *nextchild;
286 for (child = TAILQ_FIRST(&(con->focus_head)); child;) {
287 nextchild = TAILQ_NEXT(child, focused);
288 DLOG("killing child = %p.\n", child);
289 tree_close_internal(child, kill_window, false, false);
296 tree_close_internal(con, kill_window, false, false);
300 * Returns true when this node is a leaf node (has no children)
303 bool con_is_leaf(Con *con) {
304 return TAILQ_EMPTY(&(con->nodes_head));
308 * Returns true when this con is a leaf node with a managed X11 window (e.g.,
309 * excluding dock containers)
311 bool con_has_managed_window(Con *con) {
312 return (con != NULL && con->window != NULL && con->window->id != XCB_WINDOW_NONE && con_get_workspace(con) != NULL);
316 * Returns true if this node has regular or floating children.
319 bool con_has_children(Con *con) {
320 return (!con_is_leaf(con) || !TAILQ_EMPTY(&(con->floating_head)));
324 * Returns true if a container should be considered split.
327 bool con_is_split(Con *con) {
328 if (con_is_leaf(con))
331 switch (con->layout) {
342 * This will only return true for containers which have some parent with
343 * a tabbed / stacked parent of which they are not the currently focused child.
346 bool con_is_hidden(Con *con) {
349 /* ascend to the workspace level and memorize the highest-up container
350 * which is stacked or tabbed. */
351 while (current != NULL && current->type != CT_WORKSPACE) {
352 Con *parent = current->parent;
353 if (parent != NULL && (parent->layout == L_TABBED || parent->layout == L_STACKED)) {
354 if (TAILQ_FIRST(&(parent->focus_head)) != current)
365 * Returns whether the container or any of its children is sticky.
368 bool con_is_sticky(Con *con) {
373 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
374 if (con_is_sticky(child))
382 * Returns true if this node accepts a window (if the node swallows windows,
383 * it might already have swallowed enough and cannot hold any more).
386 bool con_accepts_window(Con *con) {
387 /* 1: workspaces never accept direct windows */
388 if (con->type == CT_WORKSPACE)
391 if (con_is_split(con)) {
392 DLOG("container %p does not accept windows, it is a split container.\n", con);
396 /* TODO: if this is a swallowing container, we need to check its max_clients */
397 return (con->window == NULL);
401 * Gets the output container (first container with CT_OUTPUT in hierarchy) this
405 Con *con_get_output(Con *con) {
407 while (result != NULL && result->type != CT_OUTPUT)
408 result = result->parent;
409 /* We must be able to get an output because focus can never be set higher
410 * in the tree (root node cannot be focused). */
411 assert(result != NULL);
416 * Gets the workspace container this node is on.
419 Con *con_get_workspace(Con *con) {
421 while (result != NULL && result->type != CT_WORKSPACE)
422 result = result->parent;
427 * Searches parents of the given 'con' until it reaches one with the specified
428 * 'orientation'. Aborts when it comes across a floating_con.
431 Con *con_parent_with_orientation(Con *con, orientation_t orientation) {
432 DLOG("Searching for parent of Con %p with orientation %d\n", con, orientation);
433 Con *parent = con->parent;
434 if (parent->type == CT_FLOATING_CON)
436 while (con_orientation(parent) != orientation) {
437 DLOG("Need to go one level further up\n");
438 parent = parent->parent;
439 /* Abort when we reach a floating con, or an output con */
441 (parent->type == CT_FLOATING_CON ||
442 parent->type == CT_OUTPUT ||
443 (parent->parent && parent->parent->type == CT_OUTPUT)))
448 DLOG("Result: %p\n", parent);
453 * helper data structure for the breadth-first-search in
454 * con_get_fullscreen_con()
460 TAILQ_ENTRY(bfs_entry)
465 * Returns the first fullscreen node below this node.
468 Con *con_get_fullscreen_con(Con *con, fullscreen_mode_t fullscreen_mode) {
469 Con *current, *child;
471 /* TODO: is breadth-first-search really appropriate? (check as soon as
472 * fullscreen levels and fullscreen for containers is implemented) */
473 TAILQ_HEAD(bfs_head, bfs_entry)
474 bfs_head = TAILQ_HEAD_INITIALIZER(bfs_head);
476 struct bfs_entry *entry = smalloc(sizeof(struct bfs_entry));
478 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
480 while (!TAILQ_EMPTY(&bfs_head)) {
481 entry = TAILQ_FIRST(&bfs_head);
482 current = entry->con;
483 if (current != con && current->fullscreen_mode == fullscreen_mode) {
484 /* empty the queue */
485 while (!TAILQ_EMPTY(&bfs_head)) {
486 entry = TAILQ_FIRST(&bfs_head);
487 TAILQ_REMOVE(&bfs_head, entry, entries);
493 TAILQ_REMOVE(&bfs_head, entry, entries);
496 TAILQ_FOREACH(child, &(current->nodes_head), nodes) {
497 entry = smalloc(sizeof(struct bfs_entry));
499 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
502 TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
503 entry = smalloc(sizeof(struct bfs_entry));
505 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
513 * Returns true if the container is internal, such as __i3_scratch
516 bool con_is_internal(Con *con) {
517 return (con->name[0] == '_' && con->name[1] == '_');
521 * Returns true if the node is floating.
524 bool con_is_floating(Con *con) {
526 DLOG("checking if con %p is floating\n", con);
527 return (con->floating >= FLOATING_AUTO_ON);
531 * Returns true if the container is a docked container.
534 bool con_is_docked(Con *con) {
535 if (con->parent == NULL)
538 if (con->parent->type == CT_DOCKAREA)
541 return con_is_docked(con->parent);
545 * Checks if the given container is either floating or inside some floating
546 * container. It returns the FLOATING_CON container.
549 Con *con_inside_floating(Con *con) {
551 if (con->type == CT_FLOATING_CON)
554 if (con->floating >= FLOATING_AUTO_ON)
557 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
560 return con_inside_floating(con->parent);
564 * Checks if the given container is inside a focused container.
567 bool con_inside_focused(Con *con) {
572 return con_inside_focused(con->parent);
576 * Checks if the container has the given parent as an actual parent.
579 bool con_has_parent(Con *con, Con *parent) {
580 Con *current = con->parent;
581 if (current == NULL) {
585 if (current == parent) {
589 return con_has_parent(current, parent);
593 * Returns the container with the given client window ID or NULL if no such
597 Con *con_by_window_id(xcb_window_t window) {
599 TAILQ_FOREACH(con, &all_cons, all_cons)
600 if (con->window != NULL && con->window->id == window)
606 * Returns the container with the given container ID or NULL if no such
610 Con *con_by_con_id(long target) {
612 TAILQ_FOREACH(con, &all_cons, all_cons) {
613 if (con == (Con *)target) {
622 * Returns true if the given container (still) exists.
623 * This can be used, e.g., to make sure a container hasn't been closed in the meantime.
626 bool con_exists(Con *con) {
627 return con_by_con_id((long)con) != NULL;
631 * Returns the container with the given frame ID or NULL if no such container
635 Con *con_by_frame_id(xcb_window_t frame) {
637 TAILQ_FOREACH(con, &all_cons, all_cons)
638 if (con->frame.id == frame)
644 * Returns the container with the given mark or NULL if no such container
648 Con *con_by_mark(const char *mark) {
650 TAILQ_FOREACH(con, &all_cons, all_cons) {
651 if (con_has_mark(con, mark))
659 * Returns true if and only if the given containers holds the mark.
662 bool con_has_mark(Con *con, const char *mark) {
664 TAILQ_FOREACH(current, &(con->marks_head), marks) {
665 if (strcmp(current->name, mark) == 0)
673 * Toggles the mark on a container.
674 * If the container already has this mark, the mark is removed.
675 * Otherwise, the mark is assigned to the container.
678 void con_mark_toggle(Con *con, const char *mark, mark_mode_t mode) {
680 DLOG("Toggling mark \"%s\" on con = %p.\n", mark, con);
682 if (con_has_mark(con, mark)) {
683 con_unmark(con, mark);
685 con_mark(con, mark, mode);
690 * Assigns a mark to the container.
693 void con_mark(Con *con, const char *mark, mark_mode_t mode) {
695 DLOG("Setting mark \"%s\" on con = %p.\n", mark, con);
697 con_unmark(NULL, mark);
698 if (mode == MM_REPLACE) {
699 DLOG("Removing all existing marks on con = %p.\n", con);
702 while (!TAILQ_EMPTY(&(con->marks_head))) {
703 current = TAILQ_FIRST(&(con->marks_head));
704 con_unmark(con, current->name);
708 mark_t *new = scalloc(1, sizeof(mark_t));
709 new->name = sstrdup(mark);
710 TAILQ_INSERT_TAIL(&(con->marks_head), new, marks);
711 ipc_send_window_event("mark", con);
713 con->mark_changed = true;
717 * Removes marks from containers.
718 * If con is NULL, all containers are considered.
719 * If name is NULL, this removes all existing marks.
720 * Otherwise, it will only remove the given mark (if it is present).
723 void con_unmark(Con *con, const char *name) {
726 DLOG("Unmarking all containers.\n");
727 TAILQ_FOREACH(current, &all_cons, all_cons) {
728 if (con != NULL && current != con)
731 if (TAILQ_EMPTY(&(current->marks_head)))
735 while (!TAILQ_EMPTY(&(current->marks_head))) {
736 mark = TAILQ_FIRST(&(current->marks_head));
738 TAILQ_REMOVE(&(current->marks_head), mark, marks);
741 ipc_send_window_event("mark", current);
744 current->mark_changed = true;
747 DLOG("Removing mark \"%s\".\n", name);
748 current = (con == NULL) ? con_by_mark(name) : con;
749 if (current == NULL) {
750 DLOG("No container found with this mark, so there is nothing to do.\n");
754 DLOG("Found mark on con = %p. Removing it now.\n", current);
755 current->mark_changed = true;
758 TAILQ_FOREACH(mark, &(current->marks_head), marks) {
759 if (strcmp(mark->name, name) != 0)
763 TAILQ_REMOVE(&(current->marks_head), mark, marks);
766 ipc_send_window_event("mark", current);
773 * Returns the first container below 'con' which wants to swallow this window
777 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
780 //DLOG("searching con for window %p starting at con %p\n", window, con);
781 //DLOG("class == %s\n", window->class_class);
783 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
784 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
785 if (!match_matches_window(match, window))
787 if (store_match != NULL)
788 *store_match = match;
791 Con *result = con_for_window(child, window, store_match);
796 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
797 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
798 if (!match_matches_window(match, window))
800 if (store_match != NULL)
801 *store_match = match;
804 Con *result = con_for_window(child, window, store_match);
812 static int num_focus_heads(Con *con) {
816 TAILQ_FOREACH(current, &(con->focus_head), focused) {
824 * Iterate over the container's focus stack and return an array with the
825 * containers inside it, ordered from higher focus order to lowest.
828 Con **get_focus_order(Con *con) {
829 const int focus_heads = num_focus_heads(con);
830 Con **focus_order = smalloc(focus_heads * sizeof(Con *));
833 TAILQ_FOREACH(current, &(con->focus_head), focused) {
834 assert(idx < focus_heads);
835 focus_order[idx++] = current;
842 * Clear the container's focus stack and re-add it using the provided container
843 * array. The function doesn't check if the provided array contains the same
844 * containers with the previous focus stack but will not add floating containers
845 * in the new focus stack if container is not a workspace.
848 void set_focus_order(Con *con, Con **focus_order) {
850 while (!TAILQ_EMPTY(&(con->focus_head))) {
851 Con *current = TAILQ_FIRST(&(con->focus_head));
853 TAILQ_REMOVE(&(con->focus_head), current, focused);
857 for (int idx = 0; idx < focus_heads; idx++) {
858 /* Useful when encapsulating a workspace. */
859 if (con->type != CT_WORKSPACE && con_inside_floating(focus_order[idx])) {
864 TAILQ_INSERT_TAIL(&(con->focus_head), focus_order[idx], focused);
869 * Returns the number of children of this container.
872 int con_num_children(Con *con) {
876 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
883 * Returns the number of visible non-floating children of this container.
884 * For example, if the container contains a hsplit which has two children,
885 * this will return 2 instead of 1.
887 int con_num_visible_children(Con *con) {
893 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
894 /* Visible leaf nodes are a child. */
895 if (!con_is_hidden(current) && con_is_leaf(current))
897 /* All other containers need to be recursed. */
899 children += con_num_visible_children(current);
906 * Count the number of windows (i.e., leaf containers).
909 int con_num_windows(Con *con) {
913 if (con_has_managed_window(con))
918 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
919 num += con_num_windows(current);
926 * Updates the percent attribute of the children of the given container. This
927 * function needs to be called when a window is added or removed from a
931 void con_fix_percent(Con *con) {
933 int children = con_num_children(con);
935 // calculate how much we have distributed and how many containers
936 // with a percentage set we have
938 int children_with_percent = 0;
939 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
940 if (child->percent > 0.0) {
941 total += child->percent;
942 ++children_with_percent;
946 // if there were children without a percentage set, set to a value that
947 // will make those children proportional to all others
948 if (children_with_percent != children) {
949 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
950 if (child->percent <= 0.0) {
951 if (children_with_percent == 0) {
952 total += (child->percent = 1.0);
954 total += (child->percent = total / children_with_percent);
960 // if we got a zero, just distribute the space equally, otherwise
961 // distribute according to the proportions we got
963 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
964 child->percent = 1.0 / children;
966 } else if (total != 1.0) {
967 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
968 child->percent /= total;
974 * Toggles fullscreen mode for the given container. If there already is a
975 * fullscreen container on this workspace, fullscreen will be disabled and then
976 * enabled for the container the user wants to have in fullscreen mode.
979 void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
980 if (con->type == CT_WORKSPACE) {
981 DLOG("You cannot make a workspace fullscreen.\n");
985 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
987 if (con->fullscreen_mode == CF_NONE)
988 con_enable_fullscreen(con, fullscreen_mode);
990 con_disable_fullscreen(con);
994 * Sets the specified fullscreen mode for the given container, sends the
995 * “fullscreen_mode” event and changes the XCB fullscreen property of the
996 * container’s window, if any.
999 static void con_set_fullscreen_mode(Con *con, fullscreen_mode_t fullscreen_mode) {
1000 con->fullscreen_mode = fullscreen_mode;
1002 DLOG("mode now: %d\n", con->fullscreen_mode);
1004 /* Send an ipc window "fullscreen_mode" event */
1005 ipc_send_window_event("fullscreen_mode", con);
1007 /* update _NET_WM_STATE if this container has a window */
1008 /* TODO: when a window is assigned to a container which is already
1009 * fullscreened, this state needs to be pushed to the client, too */
1010 if (con->window == NULL)
1013 if (con->fullscreen_mode != CF_NONE) {
1014 DLOG("Setting _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
1015 xcb_add_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
1017 DLOG("Removing _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
1018 xcb_remove_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
1023 * Enables fullscreen mode for the given container, if necessary.
1025 * If the container’s mode is already CF_OUTPUT or CF_GLOBAL, the container is
1026 * kept fullscreen but its mode is set to CF_GLOBAL and CF_OUTPUT,
1029 * Other fullscreen containers will be disabled first, if they hide the new
1033 void con_enable_fullscreen(Con *con, fullscreen_mode_t fullscreen_mode) {
1034 if (con->type == CT_WORKSPACE) {
1035 DLOG("You cannot make a workspace fullscreen.\n");
1039 assert(fullscreen_mode == CF_GLOBAL || fullscreen_mode == CF_OUTPUT);
1041 if (fullscreen_mode == CF_GLOBAL)
1042 DLOG("enabling global fullscreen for %p / %s\n", con, con->name);
1044 DLOG("enabling fullscreen for %p / %s\n", con, con->name);
1046 if (con->fullscreen_mode == fullscreen_mode) {
1047 DLOG("fullscreen already enabled for %p / %s\n", con, con->name);
1051 Con *con_ws = con_get_workspace(con);
1053 /* Disable any fullscreen container that would conflict the new one. */
1054 Con *fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
1055 if (fullscreen == NULL)
1056 fullscreen = con_get_fullscreen_con(con_ws, CF_OUTPUT);
1057 if (fullscreen != NULL)
1058 con_disable_fullscreen(fullscreen);
1060 /* Set focus to new fullscreen container. Unless in global fullscreen mode
1061 * and on another workspace restore focus afterwards.
1062 * Switch to the container’s workspace if mode is global. */
1063 Con *cur_ws = con_get_workspace(focused);
1064 Con *old_focused = focused;
1065 if (fullscreen_mode == CF_GLOBAL && cur_ws != con_ws)
1066 workspace_show(con_ws);
1068 if (fullscreen_mode != CF_GLOBAL && cur_ws != con_ws)
1069 con_activate(old_focused);
1071 con_set_fullscreen_mode(con, fullscreen_mode);
1075 * Disables fullscreen mode for the given container regardless of the mode, if
1079 void con_disable_fullscreen(Con *con) {
1080 if (con->type == CT_WORKSPACE) {
1081 DLOG("You cannot make a workspace fullscreen.\n");
1085 DLOG("disabling fullscreen for %p / %s\n", con, con->name);
1087 if (con->fullscreen_mode == CF_NONE) {
1088 DLOG("fullscreen already disabled for %p / %s\n", con, con->name);
1092 con_set_fullscreen_mode(con, CF_NONE);
1095 static bool _con_move_to_con(Con *con, Con *target, bool behind_focused, bool fix_coordinates, bool dont_warp, bool ignore_focus, bool fix_percentage) {
1096 Con *orig_target = target;
1098 /* Prevent moving if this would violate the fullscreen focus restrictions. */
1099 Con *target_ws = con_get_workspace(target);
1100 if (!con_fullscreen_permits_focusing(target_ws)) {
1101 LOG("Cannot move out of a fullscreen container.\n");
1105 if (con_is_floating(con)) {
1106 DLOG("Container is floating, using parent instead.\n");
1110 Con *source_ws = con_get_workspace(con);
1112 if (con->type == CT_WORKSPACE) {
1113 /* Re-parent all of the old workspace's floating windows. */
1115 while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
1116 child = TAILQ_FIRST(&(source_ws->floating_head));
1117 con_move_to_workspace(child, target_ws, true, true, false);
1120 /* If there are no non-floating children, ignore the workspace. */
1121 if (con_is_leaf(con))
1124 con = workspace_encapsulate(con);
1126 ELOG("Workspace failed to move its contents into a container!\n");
1131 /* Save the urgency state so that we can restore it. */
1132 bool urgent = con->urgent;
1134 /* Save the current workspace. So we can call workspace_show() by the end
1135 * of this function. */
1136 Con *current_ws = con_get_workspace(focused);
1138 Con *source_output = con_get_output(con),
1139 *dest_output = con_get_output(target_ws);
1141 /* 1: save the container which is going to be focused after the current
1142 * container is moved away */
1143 Con *focus_next = con_next_focused(con);
1145 /* 2: we go up one level, but only when target is a normal container */
1146 if (target->type != CT_WORKSPACE) {
1147 DLOG("target originally = %p / %s / type %d\n", target, target->name, target->type);
1148 target = target->parent;
1151 /* 3: if the target container is floating, we get the workspace instead.
1152 * Only tiling windows need to get inserted next to the current container.
1154 Con *floatingcon = con_inside_floating(target);
1155 if (floatingcon != NULL) {
1156 DLOG("floatingcon, going up even further\n");
1157 target = floatingcon->parent;
1160 if (con->type == CT_FLOATING_CON) {
1161 Con *ws = con_get_workspace(target);
1162 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
1166 if (source_output != dest_output) {
1167 /* Take the relative coordinates of the current output, then add them
1168 * to the coordinate space of the correct output */
1169 if (fix_coordinates && con->type == CT_FLOATING_CON) {
1170 floating_fix_coordinates(con, &(source_output->rect), &(dest_output->rect));
1172 DLOG("Not fixing coordinates, fix_coordinates flag = %d\n", fix_coordinates);
1174 /* If moving to a visible workspace, call show so it can be considered
1175 * focused. Must do before attaching because workspace_show checks to see
1176 * if focused container is in its area. */
1177 if (!ignore_focus && workspace_is_visible(target_ws)) {
1178 workspace_show(target_ws);
1180 /* Don’t warp if told so (when dragging floating windows with the
1181 * mouse for example) */
1183 x_set_warp_to(NULL);
1185 x_set_warp_to(&(con->rect));
1189 /* If moving a fullscreen container and the destination already has a
1190 * fullscreen window on it, un-fullscreen the target's fullscreen con. */
1191 Con *fullscreen = con_get_fullscreen_con(target_ws, CF_OUTPUT);
1192 if (con->fullscreen_mode != CF_NONE && fullscreen != NULL) {
1193 con_toggle_fullscreen(fullscreen, CF_OUTPUT);
1197 DLOG("Re-attaching container to %p / %s\n", target, target->name);
1198 /* 4: re-attach the con to the parent of this focused container */
1199 Con *parent = con->parent;
1201 _con_attach(con, target, behind_focused ? NULL : orig_target, !behind_focused);
1203 /* 5: fix the percentages */
1204 if (fix_percentage) {
1205 con_fix_percent(parent);
1207 con_fix_percent(target);
1210 /* 6: focus the con on the target workspace, but only within that
1211 * workspace, that is, don’t move focus away if the target workspace is
1213 * We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
1214 * we don’t focus when there is a fullscreen con on that workspace. We
1215 * also don't do it if the caller requested to ignore focus. */
1216 if (!ignore_focus && !con_is_internal(target_ws) && !fullscreen) {
1217 /* We need to save the focused workspace on the output in case the
1218 * new workspace is hidden and it's necessary to immediately switch
1219 * back to the originally-focused workspace. */
1220 Con *old_focus = TAILQ_FIRST(&(output_get_content(dest_output)->focus_head));
1221 con_activate(con_descend_focused(con));
1223 /* Restore focus if the output's focused workspace has changed. */
1224 if (con_get_workspace(focused) != old_focus)
1225 con_activate(old_focus);
1228 /* 7: when moving to another workspace, we leave the focus on the current
1229 * workspace. (see also #809) */
1231 /* Descend focus stack in case focus_next is a workspace which can
1232 * occur if we move to the same workspace. Also show current workspace
1233 * to ensure it is focused. */
1234 if (!ignore_focus) {
1235 workspace_show(current_ws);
1237 DLOG("x_set_warp_to(NULL) because dont_warp is set\n");
1238 x_set_warp_to(NULL);
1242 /* Set focus only if con was on current workspace before moving.
1243 * Otherwise we would give focus to some window on different workspace. */
1244 if (!ignore_focus && source_ws == current_ws)
1245 con_activate(con_descend_focused(focus_next));
1247 /* 8. If anything within the container is associated with a startup sequence,
1248 * delete it so child windows won't be created on the old workspace. */
1249 struct Startup_Sequence *sequence;
1250 xcb_get_property_cookie_t cookie;
1251 xcb_get_property_reply_t *startup_id_reply;
1253 if (!con_is_leaf(con)) {
1255 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1259 cookie = xcb_get_property(conn, false, child->window->id,
1260 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1261 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1263 sequence = startup_sequence_get(child->window, startup_id_reply, true);
1264 if (sequence != NULL)
1265 startup_sequence_delete(sequence);
1270 cookie = xcb_get_property(conn, false, con->window->id,
1271 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1272 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1274 sequence = startup_sequence_get(con->window, startup_id_reply, true);
1275 if (sequence != NULL)
1276 startup_sequence_delete(sequence);
1279 /* 9. If the container was marked urgent, move the urgency hint. */
1281 workspace_update_urgent_flag(source_ws);
1282 con_set_urgency(con, true);
1285 /* Ensure the container will be redrawn. */
1286 FREE(con->deco_render_params);
1288 CALL(parent, on_remove_child);
1290 ipc_send_window_event("move", con);
1291 ewmh_update_wm_desktop();
1296 * Moves the given container to the given mark.
1299 bool con_move_to_mark(Con *con, const char *mark) {
1300 Con *target = con_by_mark(mark);
1301 if (target == NULL) {
1302 DLOG("found no container with mark \"%s\"\n", mark);
1306 /* For floating target containers, we just send the window to the same workspace. */
1307 if (con_is_floating(target)) {
1308 DLOG("target container is floating, moving container to target's workspace.\n");
1309 con_move_to_workspace(con, con_get_workspace(target), true, false, false);
1313 if (con->type == CT_WORKSPACE) {
1314 DLOG("target container is a workspace, simply moving the container there.\n");
1315 con_move_to_workspace(con, target, true, false, false);
1319 /* For split containers, we use the currently focused container within it.
1320 * This allows setting marks on, e.g., tabbed containers which will move
1321 * con to a new tab behind the focused tab. */
1322 if (con_is_split(target)) {
1323 DLOG("target is a split container, descending to the currently focused child.\n");
1324 target = TAILQ_FIRST(&(target->focus_head));
1327 if (con == target || con_has_parent(target, con)) {
1328 DLOG("cannot move the container to or inside itself, aborting.\n");
1332 return _con_move_to_con(con, target, false, true, false, false, true);
1336 * Moves the given container to the currently focused container on the given
1339 * The fix_coordinates flag will translate the current coordinates (offset from
1340 * the monitor position basically) to appropriate coordinates on the
1341 * destination workspace.
1342 * Not enabling this behaviour comes in handy when this function gets called by
1343 * floating_maybe_reassign_ws, which will only "move" a floating window when it
1344 * *already* changed its coordinates to a different output.
1346 * The dont_warp flag disables pointer warping and will be set when this
1347 * function is called while dragging a floating window.
1349 * If ignore_focus is set, the container will be moved without modifying focus
1352 * TODO: is there a better place for this function?
1355 void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
1356 assert(workspace->type == CT_WORKSPACE);
1358 Con *source_ws = con_get_workspace(con);
1359 if (workspace == source_ws) {
1360 DLOG("Not moving, already there\n");
1364 Con *target = con_descend_focused(workspace);
1365 _con_move_to_con(con, target, true, fix_coordinates, dont_warp, ignore_focus, true);
1369 * Moves the given container to the currently focused container on the
1370 * visible workspace on the given output.
1373 void con_move_to_output(Con *con, Output *output, bool fix_coordinates) {
1375 GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1377 DLOG("Moving con %p to output %s\n", con, output_primary_name(output));
1378 con_move_to_workspace(con, ws, fix_coordinates, false, false);
1382 * Moves the given container to the currently focused container on the
1383 * visible workspace on the output specified by the given name.
1384 * The current output for the container is used to resolve relative names
1385 * such as left, right, up, down.
1388 bool con_move_to_output_name(Con *con, const char *name, bool fix_coordinates) {
1389 Output *current_output = get_output_for_con(con);
1390 assert(current_output != NULL);
1392 Output *output = get_output_from_string(current_output, name);
1393 if (output == NULL) {
1394 ELOG("Could not find output \"%s\"\n", name);
1398 con_move_to_output(con, output, fix_coordinates);
1403 * Returns the orientation of the given container (for stacked containers,
1404 * vertical orientation is used regardless of the actual orientation of the
1408 orientation_t con_orientation(Con *con) {
1409 switch (con->layout) {
1411 /* stacking containers behave like they are in vertical orientation */
1416 /* tabbed containers behave like they are in vertical orientation */
1421 DLOG("Someone called con_orientation() on a con with L_DEFAULT, this is a bug in the code.\n");
1427 DLOG("con_orientation() called on dockarea/output (%d) container %p\n", con->layout, con);
1432 DLOG("con_orientation() ran into default\n");
1438 * Returns the container which will be focused next when the given container
1439 * is not available anymore. Called in tree_close_internal and con_move_to_workspace
1440 * to properly restore focus.
1443 Con *con_next_focused(Con *con) {
1445 /* floating containers are attached to a workspace, so we focus either the
1446 * next floating container (if any) or the workspace itself. */
1447 if (con->type == CT_FLOATING_CON) {
1448 DLOG("selecting next for CT_FLOATING_CON\n");
1449 next = TAILQ_NEXT(con, floating_windows);
1450 DLOG("next = %p\n", next);
1452 next = TAILQ_PREV(con, floating_head, floating_windows);
1453 DLOG("using prev, next = %p\n", next);
1456 Con *ws = con_get_workspace(con);
1458 DLOG("no more floating containers for next = %p, restoring workspace focus\n", next);
1459 while (next != TAILQ_END(&(ws->focus_head)) && !TAILQ_EMPTY(&(next->focus_head))) {
1460 next = TAILQ_FIRST(&(next->focus_head));
1462 DLOG("skipping container itself, we want the next client\n");
1463 next = TAILQ_NEXT(next, focused);
1466 if (next == TAILQ_END(&(ws->focus_head))) {
1467 DLOG("Focus list empty, returning ws\n");
1471 /* Instead of returning the next CT_FLOATING_CON, we descend it to
1472 * get an actual window to focus. */
1473 next = con_descend_focused(next);
1478 /* dock clients cannot be focused, so we focus the workspace instead */
1479 if (con->parent->type == CT_DOCKAREA) {
1480 DLOG("selecting workspace for dock client\n");
1481 return con_descend_focused(output_get_content(con->parent->parent));
1484 /* if 'con' is not the first entry in the focus stack, use the first one as
1485 * it’s currently focused already */
1486 Con *first = TAILQ_FIRST(&(con->parent->focus_head));
1488 DLOG("Using first entry %p\n", first);
1491 /* try to focus the next container on the same level as this one or fall
1492 * back to its parent */
1493 if (!(next = TAILQ_NEXT(con, focused))) {
1498 /* now go down the focus stack as far as
1499 * possible, excluding the current container */
1500 while (!TAILQ_EMPTY(&(next->focus_head)) && TAILQ_FIRST(&(next->focus_head)) != con) {
1501 next = TAILQ_FIRST(&(next->focus_head));
1508 * Get the next/previous container in the specified orientation. This may
1509 * travel up until it finds a container with suitable orientation.
1512 Con *con_get_next(Con *con, char way, orientation_t orientation) {
1513 DLOG("con_get_next(way=%c, orientation=%d)\n", way, orientation);
1514 /* 1: get the first parent with the same orientation */
1516 while (con_orientation(cur->parent) != orientation) {
1517 DLOG("need to go one level further up\n");
1518 if (cur->parent->type == CT_WORKSPACE) {
1519 LOG("that's a workspace, we can't go further up\n");
1525 /* 2: chose next (or previous) */
1528 next = TAILQ_NEXT(cur, nodes);
1529 /* if we are at the end of the list, we need to wrap */
1530 if (next == TAILQ_END(&(parent->nodes_head)))
1533 next = TAILQ_PREV(cur, nodes_head, nodes);
1534 /* if we are at the end of the list, we need to wrap */
1535 if (next == TAILQ_END(&(cur->nodes_head)))
1538 DLOG("next = %p\n", next);
1544 * Returns the focused con inside this client, descending the tree as far as
1545 * possible. This comes in handy when attaching a con to a workspace at the
1546 * currently focused position, for example.
1549 Con *con_descend_focused(Con *con) {
1551 while (next != focused && !TAILQ_EMPTY(&(next->focus_head)))
1552 next = TAILQ_FIRST(&(next->focus_head));
1557 * Returns the focused con inside this client, descending the tree as far as
1558 * possible. This comes in handy when attaching a con to a workspace at the
1559 * currently focused position, for example.
1561 * Works like con_descend_focused but considers only tiling cons.
1564 Con *con_descend_tiling_focused(Con *con) {
1568 if (next == focused)
1572 TAILQ_FOREACH(child, &(next->focus_head), focused) {
1573 if (child->type == CT_FLOATING_CON)
1579 } while (before != next && next != focused);
1584 * Returns the leftmost, rightmost, etc. container in sub-tree. For example, if
1585 * direction is D_LEFT, then we return the rightmost container and if direction
1586 * is D_RIGHT, we return the leftmost container. This is because if we are
1587 * moving D_LEFT, and thus want the rightmost container.
1590 Con *con_descend_direction(Con *con, direction_t direction) {
1593 int orientation = con_orientation(con);
1594 DLOG("con_descend_direction(%p, orientation %d, direction %d)\n", con, orientation, direction);
1595 if (direction == D_LEFT || direction == D_RIGHT) {
1596 if (orientation == HORIZ) {
1597 /* If the direction is horizontal, we can use either the first
1598 * (D_RIGHT) or the last con (D_LEFT) */
1599 if (direction == D_RIGHT)
1600 most = TAILQ_FIRST(&(con->nodes_head));
1602 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1603 } else if (orientation == VERT) {
1604 /* Wrong orientation. We use the last focused con. Within that con,
1605 * we recurse to chose the left/right con or at least the last
1607 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1608 if (current->type != CT_FLOATING_CON) {
1614 /* If the con has no orientation set, it’s not a split container
1615 * but a container with a client window, so stop recursing */
1620 if (direction == D_UP || direction == D_DOWN) {
1621 if (orientation == VERT) {
1622 /* If the direction is vertical, we can use either the first
1623 * (D_DOWN) or the last con (D_UP) */
1624 if (direction == D_UP)
1625 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1627 most = TAILQ_FIRST(&(con->nodes_head));
1628 } else if (orientation == HORIZ) {
1629 /* Wrong orientation. We use the last focused con. Within that con,
1630 * we recurse to chose the top/bottom con or at least the last
1632 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1633 if (current->type != CT_FLOATING_CON) {
1639 /* If the con has no orientation set, it’s not a split container
1640 * but a container with a client window, so stop recursing */
1647 return con_descend_direction(most, direction);
1651 * Returns a "relative" Rect which contains the amount of pixels that need to
1652 * be added to the original Rect to get the final position (obviously the
1653 * amount of pixels for normal, 1pixel and borderless are different).
1656 Rect con_border_style_rect(Con *con) {
1657 if (config.hide_edge_borders == HEBM_SMART && con_num_visible_children(con_get_workspace(con)) <= 1) {
1658 if (!con_is_floating(con)) {
1659 return (Rect){0, 0, 0, 0};
1663 adjacent_t borders_to_hide = ADJ_NONE;
1664 int border_width = con->current_border_width;
1665 DLOG("The border width for con is set to: %d\n", con->current_border_width);
1667 if (con->current_border_width < 0) {
1668 if (con_is_floating(con)) {
1669 border_width = config.default_floating_border_width;
1671 border_width = config.default_border_width;
1674 DLOG("Effective border width is set to: %d\n", border_width);
1675 /* Shortcut to avoid calling con_adjacent_borders() on dock containers. */
1676 int border_style = con_border_style(con);
1677 if (border_style == BS_NONE)
1678 return (Rect){0, 0, 0, 0};
1679 if (border_style == BS_NORMAL) {
1680 result = (Rect){border_width, 0, -(2 * border_width), -(border_width)};
1682 result = (Rect){border_width, border_width, -(2 * border_width), -(2 * border_width)};
1685 borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
1686 if (borders_to_hide & ADJ_LEFT_SCREEN_EDGE) {
1687 result.x -= border_width;
1688 result.width += border_width;
1690 if (borders_to_hide & ADJ_RIGHT_SCREEN_EDGE) {
1691 result.width += border_width;
1693 if (borders_to_hide & ADJ_UPPER_SCREEN_EDGE && (border_style != BS_NORMAL)) {
1694 result.y -= border_width;
1695 result.height += border_width;
1697 if (borders_to_hide & ADJ_LOWER_SCREEN_EDGE) {
1698 result.height += border_width;
1704 * Returns adjacent borders of the window. We need this if hide_edge_borders is
1707 adjacent_t con_adjacent_borders(Con *con) {
1708 adjacent_t result = ADJ_NONE;
1709 /* Floating windows are never adjacent to any other window, so
1710 don’t hide their border(s). This prevents bug #998. */
1711 if (con_is_floating(con))
1714 Con *workspace = con_get_workspace(con);
1715 if (con->rect.x == workspace->rect.x)
1716 result |= ADJ_LEFT_SCREEN_EDGE;
1717 if (con->rect.x + con->rect.width == workspace->rect.x + workspace->rect.width)
1718 result |= ADJ_RIGHT_SCREEN_EDGE;
1719 if (con->rect.y == workspace->rect.y)
1720 result |= ADJ_UPPER_SCREEN_EDGE;
1721 if (con->rect.y + con->rect.height == workspace->rect.y + workspace->rect.height)
1722 result |= ADJ_LOWER_SCREEN_EDGE;
1727 * Use this function to get a container’s border style. This is important
1728 * because when inside a stack, the border style is always BS_NORMAL.
1729 * For tabbed mode, the same applies, with one exception: when the container is
1730 * borderless and the only element in the tabbed container, the border is not
1733 * For children of a CT_DOCKAREA, the border style is always none.
1736 int con_border_style(Con *con) {
1737 Con *fs = con_get_fullscreen_con(con->parent, CF_OUTPUT);
1739 DLOG("this one is fullscreen! overriding BS_NONE\n");
1743 if (con->parent->layout == L_STACKED)
1744 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1746 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
1747 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1749 if (con->parent->type == CT_DOCKAREA)
1752 return con->border_style;
1756 * Sets the given border style on con, correctly keeping the position/size of a
1760 void con_set_border_style(Con *con, int border_style, int border_width) {
1761 /* Handle the simple case: non-floating containerns */
1762 if (!con_is_floating(con)) {
1763 con->border_style = border_style;
1764 con->current_border_width = border_width;
1768 /* For floating containers, we want to keep the position/size of the
1769 * *window* itself. We first add the border pixels to con->rect to make
1770 * con->rect represent the absolute position of the window (same for
1771 * parent). Then, we change the border style and subtract the new border
1772 * pixels. For the parent, we do the same also for the decoration. */
1773 DLOG("This is a floating container\n");
1775 Con *parent = con->parent;
1776 Rect bsr = con_border_style_rect(con);
1777 int deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1779 con->rect = rect_add(con->rect, bsr);
1780 parent->rect = rect_add(parent->rect, bsr);
1781 parent->rect.y += deco_height;
1782 parent->rect.height -= deco_height;
1784 /* Change the border style, get new border/decoration values. */
1785 con->border_style = border_style;
1786 con->current_border_width = border_width;
1787 bsr = con_border_style_rect(con);
1788 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1790 con->rect = rect_sub(con->rect, bsr);
1791 parent->rect = rect_sub(parent->rect, bsr);
1792 parent->rect.y -= deco_height;
1793 parent->rect.height += deco_height;
1797 * This function changes the layout of a given container. Use it to handle
1798 * special cases like changing a whole workspace to stacked/tabbed (creates a
1799 * new split container before).
1802 void con_set_layout(Con *con, layout_t layout) {
1803 DLOG("con_set_layout(%p, %d), con->type = %d\n",
1804 con, layout, con->type);
1806 /* Users can focus workspaces, but not any higher in the hierarchy.
1807 * Focus on the workspace is a special case, since in every other case, the
1808 * user means "change the layout of the parent split container". */
1809 if (con->type != CT_WORKSPACE)
1812 /* We fill in last_split_layout when switching to a different layout
1813 * since there are many places in the code that don’t use
1814 * con_set_layout(). */
1815 if (con->layout == L_SPLITH || con->layout == L_SPLITV)
1816 con->last_split_layout = con->layout;
1818 /* When the container type is CT_WORKSPACE, the user wants to change the
1819 * whole workspace into stacked/tabbed mode. To do this and still allow
1820 * intuitive operations (like level-up and then opening a new window), we
1821 * need to create a new split container. */
1822 if (con->type == CT_WORKSPACE) {
1823 if (con_num_children(con) == 0) {
1824 layout_t ws_layout = (layout == L_STACKED || layout == L_TABBED) ? layout : L_DEFAULT;
1825 DLOG("Setting workspace_layout to %d\n", ws_layout);
1826 con->workspace_layout = ws_layout;
1827 DLOG("Setting layout to %d\n", layout);
1828 con->layout = layout;
1829 } else if (layout == L_STACKED || layout == L_TABBED || layout == L_SPLITV || layout == L_SPLITH) {
1830 DLOG("Creating new split container\n");
1831 /* 1: create a new split container */
1832 Con *new = con_new(NULL, NULL);
1835 /* 2: Set the requested layout on the split container and mark it as
1837 new->layout = layout;
1838 new->last_split_layout = con->last_split_layout;
1840 /* 3: move the existing cons of this workspace below the new con */
1841 Con **focus_order = get_focus_order(con);
1843 DLOG("Moving cons\n");
1845 while (!TAILQ_EMPTY(&(con->nodes_head))) {
1846 child = TAILQ_FIRST(&(con->nodes_head));
1848 con_attach(child, new, true);
1851 set_focus_order(new, focus_order);
1854 /* 4: attach the new split container to the workspace */
1855 DLOG("Attaching new split to ws\n");
1856 con_attach(new, con, false);
1858 tree_flatten(croot);
1860 con_force_split_parents_redraw(con);
1864 if (layout == L_DEFAULT) {
1865 /* Special case: the layout formerly known as "default" (in combination
1866 * with an orientation). Since we switched to splith/splitv layouts,
1867 * using the "default" layout (which "only" should happen when using
1868 * legacy configs) is using the last split layout (either splith or
1869 * splitv) in order to still do the same thing. */
1870 con->layout = con->last_split_layout;
1871 /* In case last_split_layout was not initialized… */
1872 if (con->layout == L_DEFAULT)
1873 con->layout = L_SPLITH;
1875 con->layout = layout;
1877 con_force_split_parents_redraw(con);
1881 * This function toggles the layout of a given container. toggle_mode can be
1882 * either 'default' (toggle only between stacked/tabbed/last_split_layout),
1883 * 'split' (toggle only between splitv/splith) or 'all' (toggle between all
1887 void con_toggle_layout(Con *con, const char *toggle_mode) {
1889 /* Users can focus workspaces, but not any higher in the hierarchy.
1890 * Focus on the workspace is a special case, since in every other case, the
1891 * user means "change the layout of the parent split container". */
1892 if (con->type != CT_WORKSPACE)
1893 parent = con->parent;
1894 DLOG("con_toggle_layout(%p, %s), parent = %p\n", con, toggle_mode, parent);
1896 const char delim[] = " ";
1898 if (strcasecmp(toggle_mode, "split") == 0 || strstr(toggle_mode, delim)) {
1899 /* L_DEFAULT is used as a placeholder value to distinguish if
1900 * the first layout has already been saved. (it can never be L_DEFAULT) */
1901 layout_t new_layout = L_DEFAULT;
1902 bool current_layout_found = false;
1903 char *tm_dup = sstrdup(toggle_mode);
1904 char *cur_tok = strtok(tm_dup, delim);
1906 for (layout_t layout; cur_tok != NULL; cur_tok = strtok(NULL, delim)) {
1907 if (strcasecmp(cur_tok, "split") == 0) {
1908 /* Toggle between splits. When the current layout is not a split
1909 * layout, we just switch back to last_split_layout. Otherwise, we
1910 * change to the opposite split layout. */
1911 if (parent->layout != L_SPLITH && parent->layout != L_SPLITV) {
1912 layout = parent->last_split_layout;
1913 /* In case last_split_layout was not initialized… */
1914 if (layout == L_DEFAULT) {
1918 layout = (parent->layout == L_SPLITH) ? L_SPLITV : L_SPLITH;
1921 bool success = layout_from_name(cur_tok, &layout);
1922 if (!success || layout == L_DEFAULT) {
1923 ELOG("The token '%s' was not recognized and has been skipped.\n", cur_tok);
1928 /* If none of the specified layouts match the current,
1929 * fall back to the first layout in the list */
1930 if (new_layout == L_DEFAULT) {
1931 new_layout = layout;
1934 /* We found the active layout in the last iteration, so
1935 * now let's activate the current layout (next in list) */
1936 if (current_layout_found) {
1937 new_layout = layout;
1942 if (parent->layout == layout) {
1943 current_layout_found = true;
1947 if (new_layout != L_DEFAULT) {
1948 con_set_layout(con, new_layout);
1950 } else if (strcasecmp(toggle_mode, "all") == 0 || strcasecmp(toggle_mode, "default") == 0) {
1951 if (parent->layout == L_STACKED)
1952 con_set_layout(con, L_TABBED);
1953 else if (parent->layout == L_TABBED) {
1954 if (strcasecmp(toggle_mode, "all") == 0)
1955 con_set_layout(con, L_SPLITH);
1957 con_set_layout(con, parent->last_split_layout);
1958 } else if (parent->layout == L_SPLITH || parent->layout == L_SPLITV) {
1959 if (strcasecmp(toggle_mode, "all") == 0) {
1960 /* When toggling through all modes, we toggle between
1961 * splith/splitv, whereas normally we just directly jump to
1963 if (parent->layout == L_SPLITH)
1964 con_set_layout(con, L_SPLITV);
1966 con_set_layout(con, L_STACKED);
1968 con_set_layout(con, L_STACKED);
1975 * Callback which will be called when removing a child from the given con.
1976 * Kills the container if it is empty and replaces it with the child if there
1977 * is exactly one child.
1980 static void con_on_remove_child(Con *con) {
1981 DLOG("on_remove_child\n");
1983 /* Every container 'above' (in the hierarchy) the workspace content should
1984 * not be closed when the last child was removed */
1985 if (con->type == CT_OUTPUT ||
1986 con->type == CT_ROOT ||
1987 con->type == CT_DOCKAREA ||
1988 (con->parent != NULL && con->parent->type == CT_OUTPUT)) {
1989 DLOG("not handling, type = %d, name = %s\n", con->type, con->name);
1993 /* For workspaces, close them only if they're not visible anymore */
1994 if (con->type == CT_WORKSPACE) {
1995 if (TAILQ_EMPTY(&(con->focus_head)) && !workspace_is_visible(con)) {
1996 LOG("Closing old workspace (%p / %s), it is empty\n", con, con->name);
1997 yajl_gen gen = ipc_marshal_workspace_event("empty", con, NULL);
1998 tree_close_internal(con, DONT_KILL_WINDOW, false, false);
2000 const unsigned char *payload;
2002 y(get_buf, &payload, &length);
2003 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, (const char *)payload);
2010 con_force_split_parents_redraw(con);
2011 con->urgent = con_has_urgent_child(con);
2012 con_update_parents_urgency(con);
2014 /* TODO: check if this container would swallow any other client and
2015 * don’t close it automatically. */
2016 int children = con_num_children(con);
2017 if (children == 0) {
2018 DLOG("Container empty, closing\n");
2019 tree_close_internal(con, DONT_KILL_WINDOW, false, false);
2025 * Determines the minimum size of the given con by looking at its children (for
2026 * split/stacked/tabbed cons). Will be called when resizing floating cons
2029 Rect con_minimum_size(Con *con) {
2030 DLOG("Determining minimum size for con %p\n", con);
2032 if (con_is_leaf(con)) {
2033 DLOG("leaf node, returning 75x50\n");
2034 return (Rect){0, 0, 75, 50};
2037 if (con->type == CT_FLOATING_CON) {
2038 DLOG("floating con\n");
2039 Con *child = TAILQ_FIRST(&(con->nodes_head));
2040 return con_minimum_size(child);
2043 if (con->layout == L_STACKED || con->layout == L_TABBED) {
2044 uint32_t max_width = 0, max_height = 0, deco_height = 0;
2046 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2047 Rect min = con_minimum_size(child);
2048 deco_height += child->deco_rect.height;
2049 max_width = max(max_width, min.width);
2050 max_height = max(max_height, min.height);
2052 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
2053 max_width, max_height, deco_height);
2054 return (Rect){0, 0, max_width, max_height + deco_height};
2057 /* For horizontal/vertical split containers we sum up the width (h-split)
2058 * or height (v-split) and use the maximum of the height (h-split) or width
2059 * (v-split) as minimum size. */
2060 if (con_is_split(con)) {
2061 uint32_t width = 0, height = 0;
2063 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2064 Rect min = con_minimum_size(child);
2065 if (con->layout == L_SPLITH) {
2067 height = max(height, min.height);
2069 height += min.height;
2070 width = max(width, min.width);
2073 DLOG("split container, returning width = %d x height = %d\n", width, height);
2074 return (Rect){0, 0, width, height};
2077 ELOG("Unhandled case, type = %d, layout = %d, split = %d\n",
2078 con->type, con->layout, con_is_split(con));
2083 * Returns true if changing the focus to con would be allowed considering
2084 * the fullscreen focus constraints. Specifically, if a fullscreen container or
2085 * any of its descendants is focused, this function returns true if and only if
2086 * focusing con would mean that focus would still be visible on screen, i.e.,
2087 * the newly focused container would not be obscured by a fullscreen container.
2089 * In the simplest case, if a fullscreen container or any of its descendants is
2090 * fullscreen, this functions returns true if con is the fullscreen container
2091 * itself or any of its descendants, as this means focus wouldn't escape the
2092 * boundaries of the fullscreen container.
2094 * In case the fullscreen container is of type CF_OUTPUT, this function returns
2095 * true if con is on a different workspace, as focus wouldn't be obscured by
2096 * the fullscreen container that is constrained to a different workspace.
2098 * Note that this same logic can be applied to moving containers. If a
2099 * container can be focused under the fullscreen focus constraints, it can also
2100 * become a parent or sibling to the currently focused container.
2103 bool con_fullscreen_permits_focusing(Con *con) {
2104 /* No focus, no problem. */
2108 /* Find the first fullscreen ascendent. */
2110 while (fs && fs->fullscreen_mode == CF_NONE)
2113 /* fs must be non-NULL since the workspace con doesn’t have CF_NONE and
2114 * there always has to be a workspace con in the hierarchy. */
2116 /* The most common case is we hit the workspace level. In this
2117 * situation, changing focus is also harmless. */
2118 assert(fs->fullscreen_mode != CF_NONE);
2119 if (fs->type == CT_WORKSPACE)
2122 /* Allow it if the container itself is the fullscreen container. */
2126 /* If fullscreen is per-output, the focus being in a different workspace is
2127 * sufficient to guarantee that change won't leave fullscreen in bad shape. */
2128 if (fs->fullscreen_mode == CF_OUTPUT &&
2129 con_get_workspace(con) != con_get_workspace(fs)) {
2133 /* Allow it only if the container to be focused is contained within the
2134 * current fullscreen container. */
2135 return con_has_parent(con, fs);
2140 * Checks if the given container has an urgent child.
2143 bool con_has_urgent_child(Con *con) {
2146 if (con_is_leaf(con))
2149 /* We are not interested in floating windows since they can only be
2150 * attached to a workspace → nodes_head instead of focus_head */
2151 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2152 if (con_has_urgent_child(child))
2160 * Make all parent containers urgent if con is urgent or clear the urgent flag
2161 * of all parent containers if there are no more urgent children left.
2164 void con_update_parents_urgency(Con *con) {
2165 Con *parent = con->parent;
2167 /* Urgency hints should not be set on any container higher up in the
2168 * hierarchy than the workspace level. Unfortunately, since the content
2169 * container has type == CT_CON, that’s not easy to verify in the loop
2170 * below, so we need another condition to catch that case: */
2171 if (con->type == CT_WORKSPACE)
2174 bool new_urgency_value = con->urgent;
2175 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
2176 if (new_urgency_value) {
2177 parent->urgent = true;
2179 /* We can only reset the urgency when the parent
2180 * has no other urgent children */
2181 if (!con_has_urgent_child(parent))
2182 parent->urgent = false;
2184 parent = parent->parent;
2189 * Set urgency flag to the container, all the parent containers and the workspace.
2192 void con_set_urgency(Con *con, bool urgent) {
2193 if (urgent && focused == con) {
2194 DLOG("Ignoring urgency flag for current client\n");
2198 const bool old_urgent = con->urgent;
2200 if (con->urgency_timer == NULL) {
2201 con->urgent = urgent;
2203 DLOG("Discarding urgency WM_HINT because timer is running\n");
2208 gettimeofday(&con->window->urgent, NULL);
2210 con->window->urgent.tv_sec = 0;
2211 con->window->urgent.tv_usec = 0;
2215 con_update_parents_urgency(con);
2218 /* Set the urgency flag on the workspace, if a workspace could be found
2219 * (for dock clients, that is not the case). */
2220 if ((ws = con_get_workspace(con)) != NULL)
2221 workspace_update_urgent_flag(ws);
2223 if (con->urgent != old_urgent) {
2224 LOG("Urgency flag changed to %d\n", con->urgent);
2225 ipc_send_window_event("urgent", con);
2230 * Create a string representing the subtree under con.
2233 char *con_get_tree_representation(Con *con) {
2234 /* this code works as follows:
2235 * 1) create a string with the layout type (D/V/H/T/S) and an opening bracket
2236 * 2) append the tree representation of the children to the string
2237 * 3) add closing bracket
2239 * The recursion ends when we hit a leaf, in which case we return the
2240 * class_instance of the contained window.
2243 /* end of recursion */
2244 if (con_is_leaf(con)) {
2246 return sstrdup("nowin");
2248 if (!con->window->class_instance)
2249 return sstrdup("noinstance");
2251 return sstrdup(con->window->class_instance);
2255 /* 1) add the Layout type to buf */
2256 if (con->layout == L_DEFAULT)
2257 buf = sstrdup("D[");
2258 else if (con->layout == L_SPLITV)
2259 buf = sstrdup("V[");
2260 else if (con->layout == L_SPLITH)
2261 buf = sstrdup("H[");
2262 else if (con->layout == L_TABBED)
2263 buf = sstrdup("T[");
2264 else if (con->layout == L_STACKED)
2265 buf = sstrdup("S[");
2267 ELOG("BUG: Code not updated to account for new layout type\n");
2271 /* 2) append representation of children */
2273 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2274 char *child_txt = con_get_tree_representation(child);
2277 sasprintf(&tmp_buf, "%s%s%s", buf,
2278 (TAILQ_FIRST(&(con->nodes_head)) == child ? "" : " "), child_txt);
2284 /* 3) close the brackets */
2286 sasprintf(&complete_buf, "%s]", buf);
2289 return complete_buf;
2293 * Returns the container's title considering the current title format.
2296 i3String *con_parse_title_format(Con *con) {
2297 assert(con->title_format != NULL);
2299 i3Window *win = con->window;
2301 /* We need to ensure that we only escape the window title if pango
2302 * is used by the current font. */
2303 const bool pango_markup = font_is_pango();
2309 title = pango_escape_markup(con_get_tree_representation(con));
2310 class = sstrdup("i3-frame");
2311 instance = sstrdup("i3-frame");
2313 title = pango_escape_markup(sstrdup((win->name == NULL) ? "" : i3string_as_utf8(win->name)));
2314 class = pango_escape_markup(sstrdup((win->class_class == NULL) ? "" : win->class_class));
2315 instance = pango_escape_markup(sstrdup((win->class_instance == NULL) ? "" : win->class_instance));
2318 placeholder_t placeholders[] = {
2319 {.name = "%title", .value = title},
2320 {.name = "%class", .value = class},
2321 {.name = "%instance", .value = instance}};
2322 const size_t num = sizeof(placeholders) / sizeof(placeholder_t);
2324 char *formatted_str = format_placeholders(con->title_format, &placeholders[0], num);
2325 i3String *formatted = i3string_from_utf8(formatted_str);
2326 i3string_set_markup(formatted, pango_markup);
2327 FREE(formatted_str);
2329 for (size_t i = 0; i < num; i++) {
2330 FREE(placeholders[i].value);
2337 * Swaps the two containers.
2340 bool con_swap(Con *first, Con *second) {
2341 assert(first != NULL);
2342 assert(second != NULL);
2343 DLOG("Swapping containers %p / %p\n", first, second);
2345 if (first->type != CT_CON) {
2346 ELOG("Only regular containers can be swapped, but found con = %p with type = %d.\n", first, first->type);
2350 if (second->type != CT_CON) {
2351 ELOG("Only regular containers can be swapped, but found con = %p with type = %d.\n", second, second->type);
2355 if (con_is_floating(first) || con_is_floating(second)) {
2356 ELOG("Floating windows cannot be swapped.\n");
2360 if (first == second) {
2361 DLOG("Swapping container %p with itself, nothing to do.\n", first);
2365 if (con_has_parent(first, second) || con_has_parent(second, first)) {
2366 ELOG("Cannot swap containers %p and %p because they are in a parent-child relationship.\n", first, second);
2370 Con *old_focus = focused;
2372 Con *first_ws = con_get_workspace(first);
2373 Con *second_ws = con_get_workspace(second);
2374 Con *current_ws = con_get_workspace(old_focus);
2375 const bool focused_within_first = (first == old_focus || con_has_parent(old_focus, first));
2376 const bool focused_within_second = (second == old_focus || con_has_parent(old_focus, second));
2377 fullscreen_mode_t first_fullscreen_mode = first->fullscreen_mode;
2378 fullscreen_mode_t second_fullscreen_mode = second->fullscreen_mode;
2380 if (first_fullscreen_mode != CF_NONE) {
2381 con_disable_fullscreen(first);
2383 if (second_fullscreen_mode != CF_NONE) {
2384 con_disable_fullscreen(second);
2387 double first_percent = first->percent;
2388 double second_percent = second->percent;
2390 /* De- and reattaching the containers will insert them at the tail of the
2391 * focus_heads. We will need to fix this. But we need to make sure first
2392 * and second don't get in each other's way if they share the same parent,
2393 * so we select the closest previous focus_head that isn't involved. */
2394 Con *first_prev_focus_head = first;
2395 while (first_prev_focus_head == first || first_prev_focus_head == second) {
2396 first_prev_focus_head = TAILQ_PREV(first_prev_focus_head, focus_head, focused);
2399 Con *second_prev_focus_head = second;
2400 while (second_prev_focus_head == second || second_prev_focus_head == first) {
2401 second_prev_focus_head = TAILQ_PREV(second_prev_focus_head, focus_head, focused);
2404 /* We use a fake container to mark the spot of where the second container needs to go. */
2405 Con *fake = con_new(NULL, NULL);
2406 fake->layout = L_SPLITH;
2407 _con_attach(fake, first->parent, first, true);
2410 /* Swap the containers. We set the ignore_focus flag here because after the
2411 * container is attached, the focus order is not yet correct and would
2412 * result in wrong windows being focused. */
2414 /* Move first to second. */
2415 result &= _con_move_to_con(first, second, false, false, false, true, false);
2417 /* If we moved the container holding the focused window to another
2418 * workspace we need to ensure the visible workspace has the focused
2420 * We don't need to check this for the second container because we've only
2421 * moved the first one at this point.*/
2422 if (first_ws != second_ws && focused_within_first) {
2423 con_activate(con_descend_focused(current_ws));
2426 /* Move second to where first has been originally. */
2427 result &= _con_move_to_con(second, fake, false, false, false, true, false);
2429 /* If swapping the containers didn't work we don't need to mess with the focus. */
2434 /* Swapping will have inserted the containers at the tail of their parents'
2435 * focus head. We fix this now by putting them in the position of the focus
2436 * head the container they swapped with was in. */
2437 TAILQ_REMOVE(&(first->parent->focus_head), first, focused);
2438 TAILQ_REMOVE(&(second->parent->focus_head), second, focused);
2440 if (second_prev_focus_head == NULL) {
2441 TAILQ_INSERT_HEAD(&(first->parent->focus_head), first, focused);
2443 TAILQ_INSERT_AFTER(&(first->parent->focus_head), second_prev_focus_head, first, focused);
2446 if (first_prev_focus_head == NULL) {
2447 TAILQ_INSERT_HEAD(&(second->parent->focus_head), second, focused);
2449 TAILQ_INSERT_AFTER(&(second->parent->focus_head), first_prev_focus_head, second, focused);
2452 /* If the focus was within any of the swapped containers, do the following:
2453 * - If swapping took place within a workspace, ensure the previously
2454 * focused container stays focused.
2455 * - Otherwise, focus the container that has been swapped in.
2457 * To understand why fixing the focus_head previously wasn't enough,
2458 * consider the scenario
2459 * H[ V[ A X ] V[ Y B ] ]
2460 * with B being focused, but X being the focus_head within its parent. If
2461 * we swap A and B now, fixing the focus_head would focus X, but since B
2462 * was the focused container before it should stay focused.
2464 if (focused_within_first) {
2465 if (first_ws == second_ws) {
2466 con_activate(old_focus);
2468 con_activate(con_descend_focused(second));
2470 } else if (focused_within_second) {
2471 if (first_ws == second_ws) {
2472 con_activate(old_focus);
2474 con_activate(con_descend_focused(first));
2478 /* We need to copy each other's percentages to ensure that the geometry
2479 * doesn't change during the swap. This needs to happen _before_ we close
2480 * the fake container as closing the tree will recalculate percentages. */
2481 first->percent = second_percent;
2482 second->percent = first_percent;
2483 fake->percent = 0.0;
2485 SWAP(first_fullscreen_mode, second_fullscreen_mode, fullscreen_mode_t);
2488 /* The two windows exchange their original fullscreen status */
2489 if (first_fullscreen_mode != CF_NONE) {
2490 con_enable_fullscreen(first, first_fullscreen_mode);
2492 if (second_fullscreen_mode != CF_NONE) {
2493 con_enable_fullscreen(second, second_fullscreen_mode);
2496 /* We don't actually need this since percentages-wise we haven't changed
2497 * anything, but we'll better be safe than sorry and just make sure as we'd
2498 * otherwise crash i3. */
2499 con_fix_percent(first->parent);
2500 con_fix_percent(second->parent);
2502 /* We can get rid of the fake container again now. */
2503 con_close(fake, DONT_KILL_WINDOW);
2505 con_force_split_parents_redraw(first);
2506 con_force_split_parents_redraw(second);