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);
247 /* Focusing a container with a floating parent should raise it to the top. Since
248 * con_focus is called recursively for each parent we don't need to use
249 * con_inside_floating(). */
250 if (con->type == CT_FLOATING_CON) {
251 floating_raise_con(con);
256 * Closes the given container.
259 void con_close(Con *con, kill_window_t kill_window) {
261 DLOG("Closing con = %p.\n", con);
263 /* We never close output or root containers. */
264 if (con->type == CT_OUTPUT || con->type == CT_ROOT) {
265 DLOG("con = %p is of type %d, not closing anything.\n", con, con->type);
269 if (con->type == CT_WORKSPACE) {
270 DLOG("con = %p is a workspace, closing all children instead.\n", con);
271 Con *child, *nextchild;
272 for (child = TAILQ_FIRST(&(con->focus_head)); child;) {
273 nextchild = TAILQ_NEXT(child, focused);
274 DLOG("killing child = %p.\n", child);
275 tree_close_internal(child, kill_window, false, false);
282 tree_close_internal(con, kill_window, false, false);
286 * Returns true when this node is a leaf node (has no children)
289 bool con_is_leaf(Con *con) {
290 return TAILQ_EMPTY(&(con->nodes_head));
294 * Returns true when this con is a leaf node with a managed X11 window (e.g.,
295 * excluding dock containers)
297 bool con_has_managed_window(Con *con) {
298 return (con != NULL && con->window != NULL && con->window->id != XCB_WINDOW_NONE && con_get_workspace(con) != NULL);
302 * Returns true if this node has regular or floating children.
305 bool con_has_children(Con *con) {
306 return (!con_is_leaf(con) || !TAILQ_EMPTY(&(con->floating_head)));
310 * Returns true if a container should be considered split.
313 bool con_is_split(Con *con) {
314 if (con_is_leaf(con))
317 switch (con->layout) {
328 * This will only return true for containers which have some parent with
329 * a tabbed / stacked parent of which they are not the currently focused child.
332 bool con_is_hidden(Con *con) {
335 /* ascend to the workspace level and memorize the highest-up container
336 * which is stacked or tabbed. */
337 while (current != NULL && current->type != CT_WORKSPACE) {
338 Con *parent = current->parent;
339 if (parent != NULL && (parent->layout == L_TABBED || parent->layout == L_STACKED)) {
340 if (TAILQ_FIRST(&(parent->focus_head)) != current)
351 * Returns whether the container or any of its children is sticky.
354 bool con_is_sticky(Con *con) {
359 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
360 if (con_is_sticky(child))
368 * Returns true if this node accepts a window (if the node swallows windows,
369 * it might already have swallowed enough and cannot hold any more).
372 bool con_accepts_window(Con *con) {
373 /* 1: workspaces never accept direct windows */
374 if (con->type == CT_WORKSPACE)
377 if (con_is_split(con)) {
378 DLOG("container %p does not accept windows, it is a split container.\n", con);
382 /* TODO: if this is a swallowing container, we need to check its max_clients */
383 return (con->window == NULL);
387 * Gets the output container (first container with CT_OUTPUT in hierarchy) this
391 Con *con_get_output(Con *con) {
393 while (result != NULL && result->type != CT_OUTPUT)
394 result = result->parent;
395 /* We must be able to get an output because focus can never be set higher
396 * in the tree (root node cannot be focused). */
397 assert(result != NULL);
402 * Gets the workspace container this node is on.
405 Con *con_get_workspace(Con *con) {
407 while (result != NULL && result->type != CT_WORKSPACE)
408 result = result->parent;
413 * Searches parents of the given 'con' until it reaches one with the specified
414 * 'orientation'. Aborts when it comes across a floating_con.
417 Con *con_parent_with_orientation(Con *con, orientation_t orientation) {
418 DLOG("Searching for parent of Con %p with orientation %d\n", con, orientation);
419 Con *parent = con->parent;
420 if (parent->type == CT_FLOATING_CON)
422 while (con_orientation(parent) != orientation) {
423 DLOG("Need to go one level further up\n");
424 parent = parent->parent;
425 /* Abort when we reach a floating con, or an output con */
427 (parent->type == CT_FLOATING_CON ||
428 parent->type == CT_OUTPUT ||
429 (parent->parent && parent->parent->type == CT_OUTPUT)))
434 DLOG("Result: %p\n", parent);
439 * helper data structure for the breadth-first-search in
440 * con_get_fullscreen_con()
446 TAILQ_ENTRY(bfs_entry)
451 * Returns the first fullscreen node below this node.
454 Con *con_get_fullscreen_con(Con *con, fullscreen_mode_t fullscreen_mode) {
455 Con *current, *child;
457 /* TODO: is breadth-first-search really appropriate? (check as soon as
458 * fullscreen levels and fullscreen for containers is implemented) */
459 TAILQ_HEAD(bfs_head, bfs_entry)
460 bfs_head = TAILQ_HEAD_INITIALIZER(bfs_head);
462 struct bfs_entry *entry = smalloc(sizeof(struct bfs_entry));
464 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
466 while (!TAILQ_EMPTY(&bfs_head)) {
467 entry = TAILQ_FIRST(&bfs_head);
468 current = entry->con;
469 if (current != con && current->fullscreen_mode == fullscreen_mode) {
470 /* empty the queue */
471 while (!TAILQ_EMPTY(&bfs_head)) {
472 entry = TAILQ_FIRST(&bfs_head);
473 TAILQ_REMOVE(&bfs_head, entry, entries);
479 TAILQ_REMOVE(&bfs_head, entry, entries);
482 TAILQ_FOREACH(child, &(current->nodes_head), nodes) {
483 entry = smalloc(sizeof(struct bfs_entry));
485 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
488 TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
489 entry = smalloc(sizeof(struct bfs_entry));
491 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
499 * Returns true if the container is internal, such as __i3_scratch
502 bool con_is_internal(Con *con) {
503 return (con->name[0] == '_' && con->name[1] == '_');
507 * Returns true if the node is floating.
510 bool con_is_floating(Con *con) {
512 DLOG("checking if con %p is floating\n", con);
513 return (con->floating >= FLOATING_AUTO_ON);
517 * Returns true if the container is a docked container.
520 bool con_is_docked(Con *con) {
521 if (con->parent == NULL)
524 if (con->parent->type == CT_DOCKAREA)
527 return con_is_docked(con->parent);
531 * Checks if the given container is either floating or inside some floating
532 * container. It returns the FLOATING_CON container.
535 Con *con_inside_floating(Con *con) {
537 if (con->type == CT_FLOATING_CON)
540 if (con->floating >= FLOATING_AUTO_ON)
543 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
546 return con_inside_floating(con->parent);
550 * Checks if the given container is inside a focused container.
553 bool con_inside_focused(Con *con) {
558 return con_inside_focused(con->parent);
562 * Checks if the container has the given parent as an actual parent.
565 bool con_has_parent(Con *con, Con *parent) {
566 Con *current = con->parent;
567 if (current == NULL) {
571 if (current == parent) {
575 return con_has_parent(current, parent);
579 * Returns the container with the given client window ID or NULL if no such
583 Con *con_by_window_id(xcb_window_t window) {
585 TAILQ_FOREACH(con, &all_cons, all_cons)
586 if (con->window != NULL && con->window->id == window)
592 * Returns the container with the given container ID or NULL if no such
596 Con *con_by_con_id(long target) {
598 TAILQ_FOREACH(con, &all_cons, all_cons) {
599 if (con == (Con *)target) {
608 * Returns the container with the given frame ID or NULL if no such container
612 Con *con_by_frame_id(xcb_window_t frame) {
614 TAILQ_FOREACH(con, &all_cons, all_cons)
615 if (con->frame.id == frame)
621 * Returns the container with the given mark or NULL if no such container
625 Con *con_by_mark(const char *mark) {
627 TAILQ_FOREACH(con, &all_cons, all_cons) {
628 if (con_has_mark(con, mark))
636 * Returns true if and only if the given containers holds the mark.
639 bool con_has_mark(Con *con, const char *mark) {
641 TAILQ_FOREACH(current, &(con->marks_head), marks) {
642 if (strcmp(current->name, mark) == 0)
650 * Toggles the mark on a container.
651 * If the container already has this mark, the mark is removed.
652 * Otherwise, the mark is assigned to the container.
655 void con_mark_toggle(Con *con, const char *mark, mark_mode_t mode) {
657 DLOG("Toggling mark \"%s\" on con = %p.\n", mark, con);
659 if (con_has_mark(con, mark)) {
660 con_unmark(con, mark);
662 con_mark(con, mark, mode);
667 * Assigns a mark to the container.
670 void con_mark(Con *con, const char *mark, mark_mode_t mode) {
672 DLOG("Setting mark \"%s\" on con = %p.\n", mark, con);
674 con_unmark(NULL, mark);
675 if (mode == MM_REPLACE) {
676 DLOG("Removing all existing marks on con = %p.\n", con);
679 while (!TAILQ_EMPTY(&(con->marks_head))) {
680 current = TAILQ_FIRST(&(con->marks_head));
681 con_unmark(con, current->name);
685 mark_t *new = scalloc(1, sizeof(mark_t));
686 new->name = sstrdup(mark);
687 TAILQ_INSERT_TAIL(&(con->marks_head), new, marks);
688 ipc_send_window_event("mark", con);
690 con->mark_changed = true;
694 * Removes marks from containers.
695 * If con is NULL, all containers are considered.
696 * If name is NULL, this removes all existing marks.
697 * Otherwise, it will only remove the given mark (if it is present).
700 void con_unmark(Con *con, const char *name) {
703 DLOG("Unmarking all containers.\n");
704 TAILQ_FOREACH(current, &all_cons, all_cons) {
705 if (con != NULL && current != con)
708 if (TAILQ_EMPTY(&(current->marks_head)))
712 while (!TAILQ_EMPTY(&(current->marks_head))) {
713 mark = TAILQ_FIRST(&(current->marks_head));
715 TAILQ_REMOVE(&(current->marks_head), mark, marks);
718 ipc_send_window_event("mark", current);
721 current->mark_changed = true;
724 DLOG("Removing mark \"%s\".\n", name);
725 current = (con == NULL) ? con_by_mark(name) : con;
726 if (current == NULL) {
727 DLOG("No container found with this mark, so there is nothing to do.\n");
731 DLOG("Found mark on con = %p. Removing it now.\n", current);
732 current->mark_changed = true;
735 TAILQ_FOREACH(mark, &(current->marks_head), marks) {
736 if (strcmp(mark->name, name) != 0)
740 TAILQ_REMOVE(&(current->marks_head), mark, marks);
743 ipc_send_window_event("mark", current);
750 * Returns the first container below 'con' which wants to swallow this window
754 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
757 //DLOG("searching con for window %p starting at con %p\n", window, con);
758 //DLOG("class == %s\n", window->class_class);
760 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
761 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
762 if (!match_matches_window(match, window))
764 if (store_match != NULL)
765 *store_match = match;
768 Con *result = con_for_window(child, window, store_match);
773 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
774 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
775 if (!match_matches_window(match, window))
777 if (store_match != NULL)
778 *store_match = match;
781 Con *result = con_for_window(child, window, store_match);
790 * Returns the number of children of this container.
793 int con_num_children(Con *con) {
797 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
804 * Returns the number of visible non-floating children of this container.
805 * For example, if the container contains a hsplit which has two children,
806 * this will return 2 instead of 1.
808 int con_num_visible_children(Con *con) {
814 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
815 /* Visible leaf nodes are a child. */
816 if (!con_is_hidden(current) && con_is_leaf(current))
818 /* All other containers need to be recursed. */
820 children += con_num_visible_children(current);
827 * Count the number of windows (i.e., leaf containers).
830 int con_num_windows(Con *con) {
834 if (con_has_managed_window(con))
839 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
840 num += con_num_windows(current);
847 * Updates the percent attribute of the children of the given container. This
848 * function needs to be called when a window is added or removed from a
852 void con_fix_percent(Con *con) {
854 int children = con_num_children(con);
856 // calculate how much we have distributed and how many containers
857 // with a percentage set we have
859 int children_with_percent = 0;
860 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
861 if (child->percent > 0.0) {
862 total += child->percent;
863 ++children_with_percent;
867 // if there were children without a percentage set, set to a value that
868 // will make those children proportional to all others
869 if (children_with_percent != children) {
870 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
871 if (child->percent <= 0.0) {
872 if (children_with_percent == 0) {
873 total += (child->percent = 1.0);
875 total += (child->percent = total / children_with_percent);
881 // if we got a zero, just distribute the space equally, otherwise
882 // distribute according to the proportions we got
884 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
885 child->percent = 1.0 / children;
887 } else if (total != 1.0) {
888 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
889 child->percent /= total;
895 * Toggles fullscreen mode for the given container. If there already is a
896 * fullscreen container on this workspace, fullscreen will be disabled and then
897 * enabled for the container the user wants to have in fullscreen mode.
900 void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
901 if (con->type == CT_WORKSPACE) {
902 DLOG("You cannot make a workspace fullscreen.\n");
906 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
908 if (con->fullscreen_mode == CF_NONE)
909 con_enable_fullscreen(con, fullscreen_mode);
911 con_disable_fullscreen(con);
915 * Sets the specified fullscreen mode for the given container, sends the
916 * “fullscreen_mode” event and changes the XCB fullscreen property of the
917 * container’s window, if any.
920 static void con_set_fullscreen_mode(Con *con, fullscreen_mode_t fullscreen_mode) {
921 con->fullscreen_mode = fullscreen_mode;
923 DLOG("mode now: %d\n", con->fullscreen_mode);
925 /* Send an ipc window "fullscreen_mode" event */
926 ipc_send_window_event("fullscreen_mode", con);
928 /* update _NET_WM_STATE if this container has a window */
929 /* TODO: when a window is assigned to a container which is already
930 * fullscreened, this state needs to be pushed to the client, too */
931 if (con->window == NULL)
934 if (con->fullscreen_mode != CF_NONE) {
935 DLOG("Setting _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
936 xcb_add_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
938 DLOG("Removing _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
939 xcb_remove_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
944 * Enables fullscreen mode for the given container, if necessary.
946 * If the container’s mode is already CF_OUTPUT or CF_GLOBAL, the container is
947 * kept fullscreen but its mode is set to CF_GLOBAL and CF_OUTPUT,
950 * Other fullscreen containers will be disabled first, if they hide the new
954 void con_enable_fullscreen(Con *con, fullscreen_mode_t fullscreen_mode) {
955 if (con->type == CT_WORKSPACE) {
956 DLOG("You cannot make a workspace fullscreen.\n");
960 assert(fullscreen_mode == CF_GLOBAL || fullscreen_mode == CF_OUTPUT);
962 if (fullscreen_mode == CF_GLOBAL)
963 DLOG("enabling global fullscreen for %p / %s\n", con, con->name);
965 DLOG("enabling fullscreen for %p / %s\n", con, con->name);
967 if (con->fullscreen_mode == fullscreen_mode) {
968 DLOG("fullscreen already enabled for %p / %s\n", con, con->name);
972 Con *con_ws = con_get_workspace(con);
974 /* Disable any fullscreen container that would conflict the new one. */
975 Con *fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
976 if (fullscreen == NULL)
977 fullscreen = con_get_fullscreen_con(con_ws, CF_OUTPUT);
978 if (fullscreen != NULL)
979 con_disable_fullscreen(fullscreen);
981 /* Set focus to new fullscreen container. Unless in global fullscreen mode
982 * and on another workspace restore focus afterwards.
983 * Switch to the container’s workspace if mode is global. */
984 Con *cur_ws = con_get_workspace(focused);
985 Con *old_focused = focused;
986 if (fullscreen_mode == CF_GLOBAL && cur_ws != con_ws)
987 workspace_show(con_ws);
989 if (fullscreen_mode != CF_GLOBAL && cur_ws != con_ws)
990 con_focus(old_focused);
992 con_set_fullscreen_mode(con, fullscreen_mode);
996 * Disables fullscreen mode for the given container regardless of the mode, if
1000 void con_disable_fullscreen(Con *con) {
1001 if (con->type == CT_WORKSPACE) {
1002 DLOG("You cannot make a workspace fullscreen.\n");
1006 DLOG("disabling fullscreen for %p / %s\n", con, con->name);
1008 if (con->fullscreen_mode == CF_NONE) {
1009 DLOG("fullscreen already disabled for %p / %s\n", con, con->name);
1013 con_set_fullscreen_mode(con, CF_NONE);
1016 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) {
1017 Con *orig_target = target;
1019 /* Prevent moving if this would violate the fullscreen focus restrictions. */
1020 Con *target_ws = con_get_workspace(target);
1021 if (!con_fullscreen_permits_focusing(target_ws)) {
1022 LOG("Cannot move out of a fullscreen container.\n");
1026 if (con_is_floating(con)) {
1027 DLOG("Container is floating, using parent instead.\n");
1031 Con *source_ws = con_get_workspace(con);
1033 if (con->type == CT_WORKSPACE) {
1034 /* Re-parent all of the old workspace's floating windows. */
1036 while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
1037 child = TAILQ_FIRST(&(source_ws->floating_head));
1038 con_move_to_workspace(child, target_ws, true, true, false);
1041 /* If there are no non-floating children, ignore the workspace. */
1042 if (con_is_leaf(con))
1045 con = workspace_encapsulate(con);
1047 ELOG("Workspace failed to move its contents into a container!\n");
1052 /* Save the urgency state so that we can restore it. */
1053 bool urgent = con->urgent;
1055 /* Save the current workspace. So we can call workspace_show() by the end
1056 * of this function. */
1057 Con *current_ws = con_get_workspace(focused);
1059 Con *source_output = con_get_output(con),
1060 *dest_output = con_get_output(target_ws);
1062 /* 1: save the container which is going to be focused after the current
1063 * container is moved away */
1064 Con *focus_next = con_next_focused(con);
1066 /* 2: we go up one level, but only when target is a normal container */
1067 if (target->type != CT_WORKSPACE) {
1068 DLOG("target originally = %p / %s / type %d\n", target, target->name, target->type);
1069 target = target->parent;
1072 /* 3: if the target container is floating, we get the workspace instead.
1073 * Only tiling windows need to get inserted next to the current container.
1075 Con *floatingcon = con_inside_floating(target);
1076 if (floatingcon != NULL) {
1077 DLOG("floatingcon, going up even further\n");
1078 target = floatingcon->parent;
1081 if (con->type == CT_FLOATING_CON) {
1082 Con *ws = con_get_workspace(target);
1083 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
1087 if (source_output != dest_output) {
1088 /* Take the relative coordinates of the current output, then add them
1089 * to the coordinate space of the correct output */
1090 if (fix_coordinates && con->type == CT_FLOATING_CON) {
1091 floating_fix_coordinates(con, &(source_output->rect), &(dest_output->rect));
1093 DLOG("Not fixing coordinates, fix_coordinates flag = %d\n", fix_coordinates);
1095 /* If moving to a visible workspace, call show so it can be considered
1096 * focused. Must do before attaching because workspace_show checks to see
1097 * if focused container is in its area. */
1098 if (!ignore_focus && workspace_is_visible(target_ws)) {
1099 workspace_show(target_ws);
1101 /* Don’t warp if told so (when dragging floating windows with the
1102 * mouse for example) */
1104 x_set_warp_to(NULL);
1106 x_set_warp_to(&(con->rect));
1110 /* If moving a fullscreen container and the destination already has a
1111 * fullscreen window on it, un-fullscreen the target's fullscreen con. */
1112 Con *fullscreen = con_get_fullscreen_con(target_ws, CF_OUTPUT);
1113 if (con->fullscreen_mode != CF_NONE && fullscreen != NULL) {
1114 con_toggle_fullscreen(fullscreen, CF_OUTPUT);
1118 DLOG("Re-attaching container to %p / %s\n", target, target->name);
1119 /* 4: re-attach the con to the parent of this focused container */
1120 Con *parent = con->parent;
1122 _con_attach(con, target, behind_focused ? NULL : orig_target, !behind_focused);
1124 /* 5: fix the percentages */
1125 if (fix_percentage) {
1126 con_fix_percent(parent);
1128 con_fix_percent(target);
1131 /* 6: focus the con on the target workspace, but only within that
1132 * workspace, that is, don’t move focus away if the target workspace is
1134 * We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
1135 * we don’t focus when there is a fullscreen con on that workspace. We
1136 * also don't do it if the caller requested to ignore focus. */
1137 if (!ignore_focus && !con_is_internal(target_ws) && !fullscreen) {
1138 /* We need to save the focused workspace on the output in case the
1139 * new workspace is hidden and it's necessary to immediately switch
1140 * back to the originally-focused workspace. */
1141 Con *old_focus = TAILQ_FIRST(&(output_get_content(dest_output)->focus_head));
1142 con_focus(con_descend_focused(con));
1144 /* Restore focus if the output's focused workspace has changed. */
1145 if (con_get_workspace(focused) != old_focus)
1146 con_focus(old_focus);
1149 /* 7: when moving to another workspace, we leave the focus on the current
1150 * workspace. (see also #809) */
1152 /* Descend focus stack in case focus_next is a workspace which can
1153 * occur if we move to the same workspace. Also show current workspace
1154 * to ensure it is focused. */
1155 if (!ignore_focus) {
1156 workspace_show(current_ws);
1158 DLOG("x_set_warp_to(NULL) because dont_warp is set\n");
1159 x_set_warp_to(NULL);
1163 /* Set focus only if con was on current workspace before moving.
1164 * Otherwise we would give focus to some window on different workspace. */
1165 if (!ignore_focus && source_ws == current_ws)
1166 con_focus(con_descend_focused(focus_next));
1168 /* 8. If anything within the container is associated with a startup sequence,
1169 * delete it so child windows won't be created on the old workspace. */
1170 struct Startup_Sequence *sequence;
1171 xcb_get_property_cookie_t cookie;
1172 xcb_get_property_reply_t *startup_id_reply;
1174 if (!con_is_leaf(con)) {
1176 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1180 cookie = xcb_get_property(conn, false, child->window->id,
1181 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1182 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1184 sequence = startup_sequence_get(child->window, startup_id_reply, true);
1185 if (sequence != NULL)
1186 startup_sequence_delete(sequence);
1191 cookie = xcb_get_property(conn, false, con->window->id,
1192 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1193 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1195 sequence = startup_sequence_get(con->window, startup_id_reply, true);
1196 if (sequence != NULL)
1197 startup_sequence_delete(sequence);
1200 /* 9. If the container was marked urgent, move the urgency hint. */
1202 workspace_update_urgent_flag(source_ws);
1203 con_set_urgency(con, true);
1206 /* Ensure the container will be redrawn. */
1207 FREE(con->deco_render_params);
1209 CALL(parent, on_remove_child);
1211 ipc_send_window_event("move", con);
1212 ewmh_update_wm_desktop();
1217 * Moves the given container to the given mark.
1220 bool con_move_to_mark(Con *con, const char *mark) {
1221 Con *target = con_by_mark(mark);
1222 if (target == NULL) {
1223 DLOG("found no container with mark \"%s\"\n", mark);
1227 /* For floating target containers, we just send the window to the same workspace. */
1228 if (con_is_floating(target)) {
1229 DLOG("target container is floating, moving container to target's workspace.\n");
1230 con_move_to_workspace(con, con_get_workspace(target), true, false, false);
1234 if (con->type == CT_WORKSPACE) {
1235 DLOG("target container is a workspace, simply moving the container there.\n");
1236 con_move_to_workspace(con, target, true, false, false);
1240 /* For split containers, we use the currently focused container within it.
1241 * This allows setting marks on, e.g., tabbed containers which will move
1242 * con to a new tab behind the focused tab. */
1243 if (con_is_split(target)) {
1244 DLOG("target is a split container, descending to the currently focused child.\n");
1245 target = TAILQ_FIRST(&(target->focus_head));
1248 if (con == target || con_has_parent(target, con)) {
1249 DLOG("cannot move the container to or inside itself, aborting.\n");
1253 return _con_move_to_con(con, target, false, true, false, false, true);
1257 * Moves the given container to the currently focused container on the given
1260 * The fix_coordinates flag will translate the current coordinates (offset from
1261 * the monitor position basically) to appropriate coordinates on the
1262 * destination workspace.
1263 * Not enabling this behaviour comes in handy when this function gets called by
1264 * floating_maybe_reassign_ws, which will only "move" a floating window when it
1265 * *already* changed its coordinates to a different output.
1267 * The dont_warp flag disables pointer warping and will be set when this
1268 * function is called while dragging a floating window.
1270 * If ignore_focus is set, the container will be moved without modifying focus
1273 * TODO: is there a better place for this function?
1276 void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
1277 assert(workspace->type == CT_WORKSPACE);
1279 Con *source_ws = con_get_workspace(con);
1280 if (workspace == source_ws) {
1281 DLOG("Not moving, already there\n");
1285 Con *target = con_descend_focused(workspace);
1286 _con_move_to_con(con, target, true, fix_coordinates, dont_warp, ignore_focus, true);
1290 * Moves the given container to the currently focused container on the
1291 * visible workspace on the given output.
1294 void con_move_to_output(Con *con, Output *output) {
1296 GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1298 DLOG("Moving con %p to output %s\n", con, output_primary_name(output));
1299 con_move_to_workspace(con, ws, false, false, false);
1303 * Returns the orientation of the given container (for stacked containers,
1304 * vertical orientation is used regardless of the actual orientation of the
1308 orientation_t con_orientation(Con *con) {
1309 switch (con->layout) {
1311 /* stacking containers behave like they are in vertical orientation */
1316 /* tabbed containers behave like they are in vertical orientation */
1321 DLOG("Someone called con_orientation() on a con with L_DEFAULT, this is a bug in the code.\n");
1327 DLOG("con_orientation() called on dockarea/output (%d) container %p\n", con->layout, con);
1332 DLOG("con_orientation() ran into default\n");
1338 * Returns the container which will be focused next when the given container
1339 * is not available anymore. Called in tree_close_internal and con_move_to_workspace
1340 * to properly restore focus.
1343 Con *con_next_focused(Con *con) {
1345 /* floating containers are attached to a workspace, so we focus either the
1346 * next floating container (if any) or the workspace itself. */
1347 if (con->type == CT_FLOATING_CON) {
1348 DLOG("selecting next for CT_FLOATING_CON\n");
1349 next = TAILQ_NEXT(con, floating_windows);
1350 DLOG("next = %p\n", next);
1352 next = TAILQ_PREV(con, floating_head, floating_windows);
1353 DLOG("using prev, next = %p\n", next);
1356 Con *ws = con_get_workspace(con);
1358 DLOG("no more floating containers for next = %p, restoring workspace focus\n", next);
1359 while (next != TAILQ_END(&(ws->focus_head)) && !TAILQ_EMPTY(&(next->focus_head))) {
1360 next = TAILQ_FIRST(&(next->focus_head));
1362 DLOG("skipping container itself, we want the next client\n");
1363 next = TAILQ_NEXT(next, focused);
1366 if (next == TAILQ_END(&(ws->focus_head))) {
1367 DLOG("Focus list empty, returning ws\n");
1371 /* Instead of returning the next CT_FLOATING_CON, we descend it to
1372 * get an actual window to focus. */
1373 next = con_descend_focused(next);
1378 /* dock clients cannot be focused, so we focus the workspace instead */
1379 if (con->parent->type == CT_DOCKAREA) {
1380 DLOG("selecting workspace for dock client\n");
1381 return con_descend_focused(output_get_content(con->parent->parent));
1384 /* if 'con' is not the first entry in the focus stack, use the first one as
1385 * it’s currently focused already */
1386 Con *first = TAILQ_FIRST(&(con->parent->focus_head));
1388 DLOG("Using first entry %p\n", first);
1391 /* try to focus the next container on the same level as this one or fall
1392 * back to its parent */
1393 if (!(next = TAILQ_NEXT(con, focused))) {
1398 /* now go down the focus stack as far as
1399 * possible, excluding the current container */
1400 while (!TAILQ_EMPTY(&(next->focus_head)) && TAILQ_FIRST(&(next->focus_head)) != con) {
1401 next = TAILQ_FIRST(&(next->focus_head));
1408 * Get the next/previous container in the specified orientation. This may
1409 * travel up until it finds a container with suitable orientation.
1412 Con *con_get_next(Con *con, char way, orientation_t orientation) {
1413 DLOG("con_get_next(way=%c, orientation=%d)\n", way, orientation);
1414 /* 1: get the first parent with the same orientation */
1416 while (con_orientation(cur->parent) != orientation) {
1417 DLOG("need to go one level further up\n");
1418 if (cur->parent->type == CT_WORKSPACE) {
1419 LOG("that's a workspace, we can't go further up\n");
1425 /* 2: chose next (or previous) */
1428 next = TAILQ_NEXT(cur, nodes);
1429 /* if we are at the end of the list, we need to wrap */
1430 if (next == TAILQ_END(&(parent->nodes_head)))
1433 next = TAILQ_PREV(cur, nodes_head, nodes);
1434 /* if we are at the end of the list, we need to wrap */
1435 if (next == TAILQ_END(&(cur->nodes_head)))
1438 DLOG("next = %p\n", next);
1444 * Returns the focused con inside this client, descending the tree as far as
1445 * possible. This comes in handy when attaching a con to a workspace at the
1446 * currently focused position, for example.
1449 Con *con_descend_focused(Con *con) {
1451 while (next != focused && !TAILQ_EMPTY(&(next->focus_head)))
1452 next = TAILQ_FIRST(&(next->focus_head));
1457 * Returns the focused con inside this client, descending the tree as far as
1458 * possible. This comes in handy when attaching a con to a workspace at the
1459 * currently focused position, for example.
1461 * Works like con_descend_focused but considers only tiling cons.
1464 Con *con_descend_tiling_focused(Con *con) {
1468 if (next == focused)
1472 TAILQ_FOREACH(child, &(next->focus_head), focused) {
1473 if (child->type == CT_FLOATING_CON)
1479 } while (before != next && next != focused);
1484 * Returns the leftmost, rightmost, etc. container in sub-tree. For example, if
1485 * direction is D_LEFT, then we return the rightmost container and if direction
1486 * is D_RIGHT, we return the leftmost container. This is because if we are
1487 * moving D_LEFT, and thus want the rightmost container.
1490 Con *con_descend_direction(Con *con, direction_t direction) {
1493 int orientation = con_orientation(con);
1494 DLOG("con_descend_direction(%p, orientation %d, direction %d)\n", con, orientation, direction);
1495 if (direction == D_LEFT || direction == D_RIGHT) {
1496 if (orientation == HORIZ) {
1497 /* If the direction is horizontal, we can use either the first
1498 * (D_RIGHT) or the last con (D_LEFT) */
1499 if (direction == D_RIGHT)
1500 most = TAILQ_FIRST(&(con->nodes_head));
1502 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1503 } else if (orientation == VERT) {
1504 /* Wrong orientation. We use the last focused con. Within that con,
1505 * we recurse to chose the left/right con or at least the last
1507 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1508 if (current->type != CT_FLOATING_CON) {
1514 /* If the con has no orientation set, it’s not a split container
1515 * but a container with a client window, so stop recursing */
1520 if (direction == D_UP || direction == D_DOWN) {
1521 if (orientation == VERT) {
1522 /* If the direction is vertical, we can use either the first
1523 * (D_DOWN) or the last con (D_UP) */
1524 if (direction == D_UP)
1525 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1527 most = TAILQ_FIRST(&(con->nodes_head));
1528 } else if (orientation == HORIZ) {
1529 /* Wrong orientation. We use the last focused con. Within that con,
1530 * we recurse to chose the top/bottom con or at least the last
1532 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1533 if (current->type != CT_FLOATING_CON) {
1539 /* If the con has no orientation set, it’s not a split container
1540 * but a container with a client window, so stop recursing */
1547 return con_descend_direction(most, direction);
1551 * Returns a "relative" Rect which contains the amount of pixels that need to
1552 * be added to the original Rect to get the final position (obviously the
1553 * amount of pixels for normal, 1pixel and borderless are different).
1556 Rect con_border_style_rect(Con *con) {
1557 if (config.hide_edge_borders == HEBM_SMART && con_num_visible_children(con_get_workspace(con)) <= 1) {
1558 if (!con_is_floating(con)) {
1559 return (Rect){0, 0, 0, 0};
1563 adjacent_t borders_to_hide = ADJ_NONE;
1564 int border_width = con->current_border_width;
1565 DLOG("The border width for con is set to: %d\n", con->current_border_width);
1567 if (con->current_border_width < 0) {
1568 if (con_is_floating(con)) {
1569 border_width = config.default_floating_border_width;
1571 border_width = config.default_border_width;
1574 DLOG("Effective border width is set to: %d\n", border_width);
1575 /* Shortcut to avoid calling con_adjacent_borders() on dock containers. */
1576 int border_style = con_border_style(con);
1577 if (border_style == BS_NONE)
1578 return (Rect){0, 0, 0, 0};
1579 if (border_style == BS_NORMAL) {
1580 result = (Rect){border_width, 0, -(2 * border_width), -(border_width)};
1582 result = (Rect){border_width, border_width, -(2 * border_width), -(2 * border_width)};
1585 borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
1586 if (borders_to_hide & ADJ_LEFT_SCREEN_EDGE) {
1587 result.x -= border_width;
1588 result.width += border_width;
1590 if (borders_to_hide & ADJ_RIGHT_SCREEN_EDGE) {
1591 result.width += border_width;
1593 if (borders_to_hide & ADJ_UPPER_SCREEN_EDGE && (border_style != BS_NORMAL)) {
1594 result.y -= border_width;
1595 result.height += border_width;
1597 if (borders_to_hide & ADJ_LOWER_SCREEN_EDGE) {
1598 result.height += border_width;
1604 * Returns adjacent borders of the window. We need this if hide_edge_borders is
1607 adjacent_t con_adjacent_borders(Con *con) {
1608 adjacent_t result = ADJ_NONE;
1609 /* Floating windows are never adjacent to any other window, so
1610 don’t hide their border(s). This prevents bug #998. */
1611 if (con_is_floating(con))
1614 Con *workspace = con_get_workspace(con);
1615 if (con->rect.x == workspace->rect.x)
1616 result |= ADJ_LEFT_SCREEN_EDGE;
1617 if (con->rect.x + con->rect.width == workspace->rect.x + workspace->rect.width)
1618 result |= ADJ_RIGHT_SCREEN_EDGE;
1619 if (con->rect.y == workspace->rect.y)
1620 result |= ADJ_UPPER_SCREEN_EDGE;
1621 if (con->rect.y + con->rect.height == workspace->rect.y + workspace->rect.height)
1622 result |= ADJ_LOWER_SCREEN_EDGE;
1627 * Use this function to get a container’s border style. This is important
1628 * because when inside a stack, the border style is always BS_NORMAL.
1629 * For tabbed mode, the same applies, with one exception: when the container is
1630 * borderless and the only element in the tabbed container, the border is not
1633 * For children of a CT_DOCKAREA, the border style is always none.
1636 int con_border_style(Con *con) {
1637 Con *fs = con_get_fullscreen_con(con->parent, CF_OUTPUT);
1639 DLOG("this one is fullscreen! overriding BS_NONE\n");
1643 if (con->parent->layout == L_STACKED)
1644 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1646 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
1647 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1649 if (con->parent->type == CT_DOCKAREA)
1652 return con->border_style;
1656 * Sets the given border style on con, correctly keeping the position/size of a
1660 void con_set_border_style(Con *con, int border_style, int border_width) {
1661 /* Handle the simple case: non-floating containerns */
1662 if (!con_is_floating(con)) {
1663 con->border_style = border_style;
1664 con->current_border_width = border_width;
1668 /* For floating containers, we want to keep the position/size of the
1669 * *window* itself. We first add the border pixels to con->rect to make
1670 * con->rect represent the absolute position of the window (same for
1671 * parent). Then, we change the border style and subtract the new border
1672 * pixels. For the parent, we do the same also for the decoration. */
1673 DLOG("This is a floating container\n");
1675 Con *parent = con->parent;
1676 Rect bsr = con_border_style_rect(con);
1677 int deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1679 con->rect = rect_add(con->rect, bsr);
1680 parent->rect = rect_add(parent->rect, bsr);
1681 parent->rect.y += deco_height;
1682 parent->rect.height -= deco_height;
1684 /* Change the border style, get new border/decoration values. */
1685 con->border_style = border_style;
1686 con->current_border_width = border_width;
1687 bsr = con_border_style_rect(con);
1688 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1690 con->rect = rect_sub(con->rect, bsr);
1691 parent->rect = rect_sub(parent->rect, bsr);
1692 parent->rect.y -= deco_height;
1693 parent->rect.height += deco_height;
1697 * This function changes the layout of a given container. Use it to handle
1698 * special cases like changing a whole workspace to stacked/tabbed (creates a
1699 * new split container before).
1702 void con_set_layout(Con *con, layout_t layout) {
1703 DLOG("con_set_layout(%p, %d), con->type = %d\n",
1704 con, layout, con->type);
1706 /* Users can focus workspaces, but not any higher in the hierarchy.
1707 * Focus on the workspace is a special case, since in every other case, the
1708 * user means "change the layout of the parent split container". */
1709 if (con->type != CT_WORKSPACE)
1712 /* We fill in last_split_layout when switching to a different layout
1713 * since there are many places in the code that don’t use
1714 * con_set_layout(). */
1715 if (con->layout == L_SPLITH || con->layout == L_SPLITV)
1716 con->last_split_layout = con->layout;
1718 /* When the container type is CT_WORKSPACE, the user wants to change the
1719 * whole workspace into stacked/tabbed mode. To do this and still allow
1720 * intuitive operations (like level-up and then opening a new window), we
1721 * need to create a new split container. */
1722 if (con->type == CT_WORKSPACE) {
1723 if (con_num_children(con) == 0) {
1724 layout_t ws_layout = (layout == L_STACKED || layout == L_TABBED) ? layout : L_DEFAULT;
1725 DLOG("Setting workspace_layout to %d\n", ws_layout);
1726 con->workspace_layout = ws_layout;
1727 DLOG("Setting layout to %d\n", layout);
1728 con->layout = layout;
1729 } else if (layout == L_STACKED || layout == L_TABBED) {
1730 DLOG("Creating new split container\n");
1731 /* 1: create a new split container */
1732 Con *new = con_new(NULL, NULL);
1735 /* 2: Set the requested layout on the split container and mark it as
1737 new->layout = layout;
1738 new->last_split_layout = con->last_split_layout;
1740 /* Save the container that was focused before we move containers
1741 * around, but only if the container is visible (otherwise focus
1742 * will be restored properly automatically when switching). */
1743 Con *old_focused = TAILQ_FIRST(&(con->focus_head));
1744 if (old_focused == TAILQ_END(&(con->focus_head)))
1746 if (old_focused != NULL &&
1747 !workspace_is_visible(con_get_workspace(old_focused)))
1750 /* 3: move the existing cons of this workspace below the new con */
1751 DLOG("Moving cons\n");
1753 while (!TAILQ_EMPTY(&(con->nodes_head))) {
1754 child = TAILQ_FIRST(&(con->nodes_head));
1756 con_attach(child, new, true);
1759 /* 4: attach the new split container to the workspace */
1760 DLOG("Attaching new split to ws\n");
1761 con_attach(new, con, false);
1764 con_focus(old_focused);
1766 tree_flatten(croot);
1768 con_force_split_parents_redraw(con);
1772 if (layout == L_DEFAULT) {
1773 /* Special case: the layout formerly known as "default" (in combination
1774 * with an orientation). Since we switched to splith/splitv layouts,
1775 * using the "default" layout (which "only" should happen when using
1776 * legacy configs) is using the last split layout (either splith or
1777 * splitv) in order to still do the same thing. */
1778 con->layout = con->last_split_layout;
1779 /* In case last_split_layout was not initialized… */
1780 if (con->layout == L_DEFAULT)
1781 con->layout = L_SPLITH;
1783 con->layout = layout;
1785 con_force_split_parents_redraw(con);
1789 * This function toggles the layout of a given container. toggle_mode can be
1790 * either 'default' (toggle only between stacked/tabbed/last_split_layout),
1791 * 'split' (toggle only between splitv/splith) or 'all' (toggle between all
1795 void con_toggle_layout(Con *con, const char *toggle_mode) {
1797 /* Users can focus workspaces, but not any higher in the hierarchy.
1798 * Focus on the workspace is a special case, since in every other case, the
1799 * user means "change the layout of the parent split container". */
1800 if (con->type != CT_WORKSPACE)
1801 parent = con->parent;
1802 DLOG("con_toggle_layout(%p, %s), parent = %p\n", con, toggle_mode, parent);
1804 const char delim[] = " ";
1806 if (strcasecmp(toggle_mode, "split") == 0 || strstr(toggle_mode, delim)) {
1807 /* L_DEFAULT is used as a placeholder value to distinguish if
1808 * the first layout has already been saved. (it can never be L_DEFAULT) */
1809 layout_t new_layout = L_DEFAULT;
1810 bool current_layout_found = false;
1811 char *tm_dup = sstrdup(toggle_mode);
1812 char *cur_tok = strtok(tm_dup, delim);
1814 for (layout_t layout; cur_tok != NULL; cur_tok = strtok(NULL, delim)) {
1815 if (strcasecmp(cur_tok, "split") == 0) {
1816 /* Toggle between splits. When the current layout is not a split
1817 * layout, we just switch back to last_split_layout. Otherwise, we
1818 * change to the opposite split layout. */
1819 if (parent->layout != L_SPLITH && parent->layout != L_SPLITV) {
1820 layout = parent->last_split_layout;
1822 layout = (parent->layout == L_SPLITH) ? L_SPLITV : L_SPLITH;
1825 bool success = layout_from_name(cur_tok, &layout);
1826 if (!success || layout == L_DEFAULT) {
1827 ELOG("The token '%s' was not recognized and has been skipped.\n", cur_tok);
1832 /* If none of the specified layouts match the current,
1833 * fall back to the first layout in the list */
1834 if (new_layout == L_DEFAULT) {
1835 new_layout = layout;
1838 /* We found the active layout in the last iteration, so
1839 * now let's activate the current layout (next in list) */
1840 if (current_layout_found) {
1841 new_layout = layout;
1846 if (parent->layout == layout) {
1847 current_layout_found = true;
1851 if (new_layout != L_DEFAULT) {
1852 con_set_layout(con, new_layout);
1854 } else if (strcasecmp(toggle_mode, "all") == 0 || strcasecmp(toggle_mode, "default") == 0) {
1855 if (parent->layout == L_STACKED)
1856 con_set_layout(con, L_TABBED);
1857 else if (parent->layout == L_TABBED) {
1858 if (strcasecmp(toggle_mode, "all") == 0)
1859 con_set_layout(con, L_SPLITH);
1861 con_set_layout(con, parent->last_split_layout);
1862 } else if (parent->layout == L_SPLITH || parent->layout == L_SPLITV) {
1863 if (strcasecmp(toggle_mode, "all") == 0) {
1864 /* When toggling through all modes, we toggle between
1865 * splith/splitv, whereas normally we just directly jump to
1867 if (parent->layout == L_SPLITH)
1868 con_set_layout(con, L_SPLITV);
1870 con_set_layout(con, L_STACKED);
1872 con_set_layout(con, L_STACKED);
1879 * Callback which will be called when removing a child from the given con.
1880 * Kills the container if it is empty and replaces it with the child if there
1881 * is exactly one child.
1884 static void con_on_remove_child(Con *con) {
1885 DLOG("on_remove_child\n");
1887 /* Every container 'above' (in the hierarchy) the workspace content should
1888 * not be closed when the last child was removed */
1889 if (con->type == CT_OUTPUT ||
1890 con->type == CT_ROOT ||
1891 con->type == CT_DOCKAREA ||
1892 (con->parent != NULL && con->parent->type == CT_OUTPUT)) {
1893 DLOG("not handling, type = %d, name = %s\n", con->type, con->name);
1897 /* For workspaces, close them only if they're not visible anymore */
1898 if (con->type == CT_WORKSPACE) {
1899 if (TAILQ_EMPTY(&(con->focus_head)) && !workspace_is_visible(con)) {
1900 LOG("Closing old workspace (%p / %s), it is empty\n", con, con->name);
1901 yajl_gen gen = ipc_marshal_workspace_event("empty", con, NULL);
1902 tree_close_internal(con, DONT_KILL_WINDOW, false, false);
1904 const unsigned char *payload;
1906 y(get_buf, &payload, &length);
1907 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, (const char *)payload);
1914 con_force_split_parents_redraw(con);
1915 con->urgent = con_has_urgent_child(con);
1916 con_update_parents_urgency(con);
1918 /* TODO: check if this container would swallow any other client and
1919 * don’t close it automatically. */
1920 int children = con_num_children(con);
1921 if (children == 0) {
1922 DLOG("Container empty, closing\n");
1923 tree_close_internal(con, DONT_KILL_WINDOW, false, false);
1929 * Determines the minimum size of the given con by looking at its children (for
1930 * split/stacked/tabbed cons). Will be called when resizing floating cons
1933 Rect con_minimum_size(Con *con) {
1934 DLOG("Determining minimum size for con %p\n", con);
1936 if (con_is_leaf(con)) {
1937 DLOG("leaf node, returning 75x50\n");
1938 return (Rect){0, 0, 75, 50};
1941 if (con->type == CT_FLOATING_CON) {
1942 DLOG("floating con\n");
1943 Con *child = TAILQ_FIRST(&(con->nodes_head));
1944 return con_minimum_size(child);
1947 if (con->layout == L_STACKED || con->layout == L_TABBED) {
1948 uint32_t max_width = 0, max_height = 0, deco_height = 0;
1950 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1951 Rect min = con_minimum_size(child);
1952 deco_height += child->deco_rect.height;
1953 max_width = max(max_width, min.width);
1954 max_height = max(max_height, min.height);
1956 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
1957 max_width, max_height, deco_height);
1958 return (Rect){0, 0, max_width, max_height + deco_height};
1961 /* For horizontal/vertical split containers we sum up the width (h-split)
1962 * or height (v-split) and use the maximum of the height (h-split) or width
1963 * (v-split) as minimum size. */
1964 if (con_is_split(con)) {
1965 uint32_t width = 0, height = 0;
1967 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1968 Rect min = con_minimum_size(child);
1969 if (con->layout == L_SPLITH) {
1971 height = max(height, min.height);
1973 height += min.height;
1974 width = max(width, min.width);
1977 DLOG("split container, returning width = %d x height = %d\n", width, height);
1978 return (Rect){0, 0, width, height};
1981 ELOG("Unhandled case, type = %d, layout = %d, split = %d\n",
1982 con->type, con->layout, con_is_split(con));
1987 * Returns true if changing the focus to con would be allowed considering
1988 * the fullscreen focus constraints. Specifically, if a fullscreen container or
1989 * any of its descendants is focused, this function returns true if and only if
1990 * focusing con would mean that focus would still be visible on screen, i.e.,
1991 * the newly focused container would not be obscured by a fullscreen container.
1993 * In the simplest case, if a fullscreen container or any of its descendants is
1994 * fullscreen, this functions returns true if con is the fullscreen container
1995 * itself or any of its descendants, as this means focus wouldn't escape the
1996 * boundaries of the fullscreen container.
1998 * In case the fullscreen container is of type CF_OUTPUT, this function returns
1999 * true if con is on a different workspace, as focus wouldn't be obscured by
2000 * the fullscreen container that is constrained to a different workspace.
2002 * Note that this same logic can be applied to moving containers. If a
2003 * container can be focused under the fullscreen focus constraints, it can also
2004 * become a parent or sibling to the currently focused container.
2007 bool con_fullscreen_permits_focusing(Con *con) {
2008 /* No focus, no problem. */
2012 /* Find the first fullscreen ascendent. */
2014 while (fs && fs->fullscreen_mode == CF_NONE)
2017 /* fs must be non-NULL since the workspace con doesn’t have CF_NONE and
2018 * there always has to be a workspace con in the hierarchy. */
2020 /* The most common case is we hit the workspace level. In this
2021 * situation, changing focus is also harmless. */
2022 assert(fs->fullscreen_mode != CF_NONE);
2023 if (fs->type == CT_WORKSPACE)
2026 /* Allow it if the container itself is the fullscreen container. */
2030 /* If fullscreen is per-output, the focus being in a different workspace is
2031 * sufficient to guarantee that change won't leave fullscreen in bad shape. */
2032 if (fs->fullscreen_mode == CF_OUTPUT &&
2033 con_get_workspace(con) != con_get_workspace(fs)) {
2037 /* Allow it only if the container to be focused is contained within the
2038 * current fullscreen container. */
2040 if (con->parent == fs)
2045 /* Focusing con would hide it behind a fullscreen window, disallow it. */
2051 * Checks if the given container has an urgent child.
2054 bool con_has_urgent_child(Con *con) {
2057 if (con_is_leaf(con))
2060 /* We are not interested in floating windows since they can only be
2061 * attached to a workspace → nodes_head instead of focus_head */
2062 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2063 if (con_has_urgent_child(child))
2071 * Make all parent containers urgent if con is urgent or clear the urgent flag
2072 * of all parent containers if there are no more urgent children left.
2075 void con_update_parents_urgency(Con *con) {
2076 Con *parent = con->parent;
2078 /* Urgency hints should not be set on any container higher up in the
2079 * hierarchy than the workspace level. Unfortunately, since the content
2080 * container has type == CT_CON, that’s not easy to verify in the loop
2081 * below, so we need another condition to catch that case: */
2082 if (con->type == CT_WORKSPACE)
2085 bool new_urgency_value = con->urgent;
2086 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
2087 if (new_urgency_value) {
2088 parent->urgent = true;
2090 /* We can only reset the urgency when the parent
2091 * has no other urgent children */
2092 if (!con_has_urgent_child(parent))
2093 parent->urgent = false;
2095 parent = parent->parent;
2100 * Set urgency flag to the container, all the parent containers and the workspace.
2103 void con_set_urgency(Con *con, bool urgent) {
2104 if (urgent && focused == con) {
2105 DLOG("Ignoring urgency flag for current client\n");
2109 const bool old_urgent = con->urgent;
2111 if (con->urgency_timer == NULL) {
2112 con->urgent = urgent;
2114 DLOG("Discarding urgency WM_HINT because timer is running\n");
2119 gettimeofday(&con->window->urgent, NULL);
2121 con->window->urgent.tv_sec = 0;
2122 con->window->urgent.tv_usec = 0;
2126 con_update_parents_urgency(con);
2129 /* Set the urgency flag on the workspace, if a workspace could be found
2130 * (for dock clients, that is not the case). */
2131 if ((ws = con_get_workspace(con)) != NULL)
2132 workspace_update_urgent_flag(ws);
2134 if (con->urgent != old_urgent) {
2135 LOG("Urgency flag changed to %d\n", con->urgent);
2136 ipc_send_window_event("urgent", con);
2141 * Create a string representing the subtree under con.
2144 char *con_get_tree_representation(Con *con) {
2145 /* this code works as follows:
2146 * 1) create a string with the layout type (D/V/H/T/S) and an opening bracket
2147 * 2) append the tree representation of the children to the string
2148 * 3) add closing bracket
2150 * The recursion ends when we hit a leaf, in which case we return the
2151 * class_instance of the contained window.
2154 /* end of recursion */
2155 if (con_is_leaf(con)) {
2157 return sstrdup("nowin");
2159 if (!con->window->class_instance)
2160 return sstrdup("noinstance");
2162 return sstrdup(con->window->class_instance);
2166 /* 1) add the Layout type to buf */
2167 if (con->layout == L_DEFAULT)
2168 buf = sstrdup("D[");
2169 else if (con->layout == L_SPLITV)
2170 buf = sstrdup("V[");
2171 else if (con->layout == L_SPLITH)
2172 buf = sstrdup("H[");
2173 else if (con->layout == L_TABBED)
2174 buf = sstrdup("T[");
2175 else if (con->layout == L_STACKED)
2176 buf = sstrdup("S[");
2178 ELOG("BUG: Code not updated to account for new layout type\n");
2182 /* 2) append representation of children */
2184 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2185 char *child_txt = con_get_tree_representation(child);
2188 sasprintf(&tmp_buf, "%s%s%s", buf,
2189 (TAILQ_FIRST(&(con->nodes_head)) == child ? "" : " "), child_txt);
2195 /* 3) close the brackets */
2197 sasprintf(&complete_buf, "%s]", buf);
2200 return complete_buf;
2204 * Returns the container's title considering the current title format.
2207 i3String *con_parse_title_format(Con *con) {
2208 assert(con->title_format != NULL);
2210 i3Window *win = con->window;
2212 /* We need to ensure that we only escape the window title if pango
2213 * is used by the current font. */
2214 const bool pango_markup = font_is_pango();
2220 title = pango_escape_markup(con_get_tree_representation(con));
2221 class = sstrdup("i3-frame");
2222 instance = sstrdup("i3-frame");
2224 title = pango_escape_markup(sstrdup((win->name == NULL) ? "" : i3string_as_utf8(win->name)));
2225 class = pango_escape_markup(sstrdup((win->class_class == NULL) ? "" : win->class_class));
2226 instance = pango_escape_markup(sstrdup((win->class_instance == NULL) ? "" : win->class_instance));
2229 placeholder_t placeholders[] = {
2230 {.name = "%title", .value = title},
2231 {.name = "%class", .value = class},
2232 {.name = "%instance", .value = instance}};
2233 const size_t num = sizeof(placeholders) / sizeof(placeholder_t);
2235 char *formatted_str = format_placeholders(con->title_format, &placeholders[0], num);
2236 i3String *formatted = i3string_from_utf8(formatted_str);
2237 i3string_set_markup(formatted, pango_markup);
2238 FREE(formatted_str);
2240 for (size_t i = 0; i < num; i++) {
2241 FREE(placeholders[i].value);
2248 * Swaps the two containers.
2251 bool con_swap(Con *first, Con *second) {
2252 assert(first != NULL);
2253 assert(second != NULL);
2254 DLOG("Swapping containers %p / %p\n", first, second);
2256 if (first->type != CT_CON) {
2257 ELOG("Only regular containers can be swapped, but found con = %p with type = %d.\n", first, first->type);
2261 if (second->type != CT_CON) {
2262 ELOG("Only regular containers can be swapped, but found con = %p with type = %d.\n", second, second->type);
2266 if (con_is_floating(first) || con_is_floating(second)) {
2267 ELOG("Floating windows cannot be swapped.\n");
2271 if (first == second) {
2272 DLOG("Swapping container %p with itself, nothing to do.\n", first);
2276 if (con_has_parent(first, second) || con_has_parent(second, first)) {
2277 ELOG("Cannot swap containers %p and %p because they are in a parent-child relationship.\n", first, second);
2281 Con *old_focus = focused;
2283 Con *first_ws = con_get_workspace(first);
2284 Con *second_ws = con_get_workspace(second);
2285 Con *current_ws = con_get_workspace(old_focus);
2286 const bool focused_within_first = (first == old_focus || con_has_parent(old_focus, first));
2287 const bool focused_within_second = (second == old_focus || con_has_parent(old_focus, second));
2289 if (!con_fullscreen_permits_focusing(first_ws)) {
2290 DLOG("Cannot swap because target workspace \"%s\" is obscured.\n", first_ws->name);
2294 if (!con_fullscreen_permits_focusing(second_ws)) {
2295 DLOG("Cannot swap because target workspace \"%s\" is obscured.\n", second_ws->name);
2299 double first_percent = first->percent;
2300 double second_percent = second->percent;
2302 /* De- and reattaching the containers will insert them at the tail of the
2303 * focus_heads. We will need to fix this. But we need to make sure first
2304 * and second don't get in each other's way if they share the same parent,
2305 * so we select the closest previous focus_head that isn't involved. */
2306 Con *first_prev_focus_head = first;
2307 while (first_prev_focus_head == first || first_prev_focus_head == second) {
2308 first_prev_focus_head = TAILQ_PREV(first_prev_focus_head, focus_head, focused);
2311 Con *second_prev_focus_head = second;
2312 while (second_prev_focus_head == second || second_prev_focus_head == first) {
2313 second_prev_focus_head = TAILQ_PREV(second_prev_focus_head, focus_head, focused);
2316 /* We use a fake container to mark the spot of where the second container needs to go. */
2317 Con *fake = con_new(NULL, NULL);
2318 fake->layout = L_SPLITH;
2319 _con_attach(fake, first->parent, first, true);
2322 /* Swap the containers. We set the ignore_focus flag here because after the
2323 * container is attached, the focus order is not yet correct and would
2324 * result in wrong windows being focused. */
2326 /* Move first to second. */
2327 result &= _con_move_to_con(first, second, false, false, false, true, false);
2329 /* If we moved the container holding the focused window to another
2330 * workspace we need to ensure the visible workspace has the focused
2332 * We don't need to check this for the second container because we've only
2333 * moved the first one at this point.*/
2334 if (first_ws != second_ws && focused_within_first) {
2335 con_focus(con_descend_focused(current_ws));
2338 /* Move second to where first has been originally. */
2339 result &= _con_move_to_con(second, fake, false, false, false, true, false);
2341 /* If swapping the containers didn't work we don't need to mess with the focus. */
2346 /* Swapping will have inserted the containers at the tail of their parents'
2347 * focus head. We fix this now by putting them in the position of the focus
2348 * head the container they swapped with was in. */
2349 TAILQ_REMOVE(&(first->parent->focus_head), first, focused);
2350 TAILQ_REMOVE(&(second->parent->focus_head), second, focused);
2352 if (second_prev_focus_head == NULL) {
2353 TAILQ_INSERT_HEAD(&(first->parent->focus_head), first, focused);
2355 TAILQ_INSERT_AFTER(&(first->parent->focus_head), second_prev_focus_head, first, focused);
2358 if (first_prev_focus_head == NULL) {
2359 TAILQ_INSERT_HEAD(&(second->parent->focus_head), second, focused);
2361 TAILQ_INSERT_AFTER(&(second->parent->focus_head), first_prev_focus_head, second, focused);
2364 /* If the focus was within any of the swapped containers, do the following:
2365 * - If swapping took place within a workspace, ensure the previously
2366 * focused container stays focused.
2367 * - Otherwise, focus the container that has been swapped in.
2369 * To understand why fixing the focus_head previously wasn't enough,
2370 * consider the scenario
2371 * H[ V[ A X ] V[ Y B ] ]
2372 * with B being focused, but X being the focus_head within its parent. If
2373 * we swap A and B now, fixing the focus_head would focus X, but since B
2374 * was the focused container before it should stay focused.
2376 if (focused_within_first) {
2377 if (first_ws == second_ws) {
2378 con_focus(old_focus);
2380 con_focus(con_descend_focused(second));
2382 } else if (focused_within_second) {
2383 if (first_ws == second_ws) {
2384 con_focus(old_focus);
2386 con_focus(con_descend_focused(first));
2390 /* We need to copy each other's percentages to ensure that the geometry
2391 * doesn't change during the swap. This needs to happen _before_ we close
2392 * the fake container as closing the tree will recalculate percentages. */
2393 first->percent = second_percent;
2394 second->percent = first_percent;
2395 fake->percent = 0.0;
2398 /* We don't actually need this since percentages-wise we haven't changed
2399 * anything, but we'll better be safe than sorry and just make sure as we'd
2400 * otherwise crash i3. */
2401 con_fix_percent(first->parent);
2402 con_fix_percent(second->parent);
2404 /* We can get rid of the fake container again now. */
2405 con_close(fake, DONT_KILL_WINDOW);
2407 con_force_split_parents_redraw(first);
2408 con_force_split_parents_redraw(second);