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);
296 tree_close_internal(con, kill_window, 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 the fullscreen node that covers the given workspace if it exists.
514 * This is either a CF_GLOBAL fullscreen container anywhere or a CF_OUTPUT
515 * fullscreen container in the workspace.
518 Con *con_get_fullscreen_covering_ws(Con *ws) {
522 Con *fs = con_get_fullscreen_con(croot, CF_GLOBAL);
524 return con_get_fullscreen_con(ws, CF_OUTPUT);
530 * Returns true if the container is internal, such as __i3_scratch
533 bool con_is_internal(Con *con) {
534 return (con->name[0] == '_' && con->name[1] == '_');
538 * Returns true if the node is floating.
541 bool con_is_floating(Con *con) {
543 DLOG("checking if con %p is floating\n", con);
544 return (con->floating >= FLOATING_AUTO_ON);
548 * Returns true if the container is a docked container.
551 bool con_is_docked(Con *con) {
552 if (con->parent == NULL)
555 if (con->parent->type == CT_DOCKAREA)
558 return con_is_docked(con->parent);
562 * Checks if the given container is either floating or inside some floating
563 * container. It returns the FLOATING_CON container.
566 Con *con_inside_floating(Con *con) {
568 if (con->type == CT_FLOATING_CON)
571 if (con->floating >= FLOATING_AUTO_ON)
574 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
577 return con_inside_floating(con->parent);
581 * Checks if the given container is inside a focused container.
584 bool con_inside_focused(Con *con) {
589 return con_inside_focused(con->parent);
593 * Checks if the container has the given parent as an actual parent.
596 bool con_has_parent(Con *con, Con *parent) {
597 Con *current = con->parent;
598 if (current == NULL) {
602 if (current == parent) {
606 return con_has_parent(current, parent);
610 * Returns the container with the given client window ID or NULL if no such
614 Con *con_by_window_id(xcb_window_t window) {
616 TAILQ_FOREACH(con, &all_cons, all_cons)
617 if (con->window != NULL && con->window->id == window)
623 * Returns the container with the given container ID or NULL if no such
627 Con *con_by_con_id(long target) {
629 TAILQ_FOREACH(con, &all_cons, all_cons) {
630 if (con == (Con *)target) {
639 * Returns true if the given container (still) exists.
640 * This can be used, e.g., to make sure a container hasn't been closed in the meantime.
643 bool con_exists(Con *con) {
644 return con_by_con_id((long)con) != NULL;
648 * Returns the container with the given frame ID or NULL if no such container
652 Con *con_by_frame_id(xcb_window_t frame) {
654 TAILQ_FOREACH(con, &all_cons, all_cons)
655 if (con->frame.id == frame)
661 * Returns the container with the given mark or NULL if no such container
665 Con *con_by_mark(const char *mark) {
667 TAILQ_FOREACH(con, &all_cons, all_cons) {
668 if (con_has_mark(con, mark))
676 * Returns true if and only if the given containers holds the mark.
679 bool con_has_mark(Con *con, const char *mark) {
681 TAILQ_FOREACH(current, &(con->marks_head), marks) {
682 if (strcmp(current->name, mark) == 0)
690 * Toggles the mark on a container.
691 * If the container already has this mark, the mark is removed.
692 * Otherwise, the mark is assigned to the container.
695 void con_mark_toggle(Con *con, const char *mark, mark_mode_t mode) {
697 DLOG("Toggling mark \"%s\" on con = %p.\n", mark, con);
699 if (con_has_mark(con, mark)) {
700 con_unmark(con, mark);
702 con_mark(con, mark, mode);
707 * Assigns a mark to the container.
710 void con_mark(Con *con, const char *mark, mark_mode_t mode) {
712 DLOG("Setting mark \"%s\" on con = %p.\n", mark, con);
714 con_unmark(NULL, mark);
715 if (mode == MM_REPLACE) {
716 DLOG("Removing all existing marks on con = %p.\n", con);
719 while (!TAILQ_EMPTY(&(con->marks_head))) {
720 current = TAILQ_FIRST(&(con->marks_head));
721 con_unmark(con, current->name);
725 mark_t *new = scalloc(1, sizeof(mark_t));
726 new->name = sstrdup(mark);
727 TAILQ_INSERT_TAIL(&(con->marks_head), new, marks);
728 ipc_send_window_event("mark", con);
730 con->mark_changed = true;
734 * Removes marks from containers.
735 * If con is NULL, all containers are considered.
736 * If name is NULL, this removes all existing marks.
737 * Otherwise, it will only remove the given mark (if it is present).
740 void con_unmark(Con *con, const char *name) {
743 DLOG("Unmarking all containers.\n");
744 TAILQ_FOREACH(current, &all_cons, all_cons) {
745 if (con != NULL && current != con)
748 if (TAILQ_EMPTY(&(current->marks_head)))
752 while (!TAILQ_EMPTY(&(current->marks_head))) {
753 mark = TAILQ_FIRST(&(current->marks_head));
755 TAILQ_REMOVE(&(current->marks_head), mark, marks);
758 ipc_send_window_event("mark", current);
761 current->mark_changed = true;
764 DLOG("Removing mark \"%s\".\n", name);
765 current = (con == NULL) ? con_by_mark(name) : con;
766 if (current == NULL) {
767 DLOG("No container found with this mark, so there is nothing to do.\n");
771 DLOG("Found mark on con = %p. Removing it now.\n", current);
772 current->mark_changed = true;
775 TAILQ_FOREACH(mark, &(current->marks_head), marks) {
776 if (strcmp(mark->name, name) != 0)
780 TAILQ_REMOVE(&(current->marks_head), mark, marks);
783 ipc_send_window_event("mark", current);
790 * Returns the first container below 'con' which wants to swallow this window
794 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
797 //DLOG("searching con for window %p starting at con %p\n", window, con);
798 //DLOG("class == %s\n", window->class_class);
800 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
801 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
802 if (!match_matches_window(match, window))
804 if (store_match != NULL)
805 *store_match = match;
808 Con *result = con_for_window(child, window, store_match);
813 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
814 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
815 if (!match_matches_window(match, window))
817 if (store_match != NULL)
818 *store_match = match;
821 Con *result = con_for_window(child, window, store_match);
829 static int num_focus_heads(Con *con) {
833 TAILQ_FOREACH(current, &(con->focus_head), focused) {
841 * Iterate over the container's focus stack and return an array with the
842 * containers inside it, ordered from higher focus order to lowest.
845 Con **get_focus_order(Con *con) {
846 const int focus_heads = num_focus_heads(con);
847 Con **focus_order = smalloc(focus_heads * sizeof(Con *));
850 TAILQ_FOREACH(current, &(con->focus_head), focused) {
851 assert(idx < focus_heads);
852 focus_order[idx++] = current;
859 * Clear the container's focus stack and re-add it using the provided container
860 * array. The function doesn't check if the provided array contains the same
861 * containers with the previous focus stack but will not add floating containers
862 * in the new focus stack if container is not a workspace.
865 void set_focus_order(Con *con, Con **focus_order) {
867 while (!TAILQ_EMPTY(&(con->focus_head))) {
868 Con *current = TAILQ_FIRST(&(con->focus_head));
870 TAILQ_REMOVE(&(con->focus_head), current, focused);
874 for (int idx = 0; idx < focus_heads; idx++) {
875 /* Useful when encapsulating a workspace. */
876 if (con->type != CT_WORKSPACE && con_inside_floating(focus_order[idx])) {
881 TAILQ_INSERT_TAIL(&(con->focus_head), focus_order[idx], focused);
886 * Returns the number of children of this container.
889 int con_num_children(Con *con) {
893 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
900 * Returns the number of visible non-floating children of this container.
901 * For example, if the container contains a hsplit which has two children,
902 * this will return 2 instead of 1.
904 int con_num_visible_children(Con *con) {
910 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
911 /* Visible leaf nodes are a child. */
912 if (!con_is_hidden(current) && con_is_leaf(current))
914 /* All other containers need to be recursed. */
916 children += con_num_visible_children(current);
923 * Count the number of windows (i.e., leaf containers).
926 int con_num_windows(Con *con) {
930 if (con_has_managed_window(con))
935 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
936 num += con_num_windows(current);
939 TAILQ_FOREACH(current, &(con->floating_head), floating_windows) {
940 num += con_num_windows(current);
947 * Updates the percent attribute of the children of the given container. This
948 * function needs to be called when a window is added or removed from a
952 void con_fix_percent(Con *con) {
954 int children = con_num_children(con);
956 // calculate how much we have distributed and how many containers
957 // with a percentage set we have
959 int children_with_percent = 0;
960 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
961 if (child->percent > 0.0) {
962 total += child->percent;
963 ++children_with_percent;
967 // if there were children without a percentage set, set to a value that
968 // will make those children proportional to all others
969 if (children_with_percent != children) {
970 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
971 if (child->percent <= 0.0) {
972 if (children_with_percent == 0) {
973 total += (child->percent = 1.0);
975 total += (child->percent = total / children_with_percent);
981 // if we got a zero, just distribute the space equally, otherwise
982 // distribute according to the proportions we got
984 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
985 child->percent = 1.0 / children;
987 } else if (total != 1.0) {
988 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
989 child->percent /= total;
995 * Toggles fullscreen mode for the given container. If there already is a
996 * fullscreen container on this workspace, fullscreen will be disabled and then
997 * enabled for the container the user wants to have in fullscreen mode.
1000 void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
1001 if (con->type == CT_WORKSPACE) {
1002 DLOG("You cannot make a workspace fullscreen.\n");
1006 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
1008 if (con->fullscreen_mode == CF_NONE)
1009 con_enable_fullscreen(con, fullscreen_mode);
1011 con_disable_fullscreen(con);
1015 * Sets the specified fullscreen mode for the given container, sends the
1016 * “fullscreen_mode” event and changes the XCB fullscreen property of the
1017 * container’s window, if any.
1020 static void con_set_fullscreen_mode(Con *con, fullscreen_mode_t fullscreen_mode) {
1021 con->fullscreen_mode = fullscreen_mode;
1023 DLOG("mode now: %d\n", con->fullscreen_mode);
1025 /* Send an ipc window "fullscreen_mode" event */
1026 ipc_send_window_event("fullscreen_mode", con);
1028 /* update _NET_WM_STATE if this container has a window */
1029 /* TODO: when a window is assigned to a container which is already
1030 * fullscreened, this state needs to be pushed to the client, too */
1031 if (con->window == NULL)
1034 if (con->fullscreen_mode != CF_NONE) {
1035 DLOG("Setting _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
1036 xcb_add_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
1038 DLOG("Removing _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
1039 xcb_remove_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
1044 * Enables fullscreen mode for the given container, if necessary.
1046 * If the container’s mode is already CF_OUTPUT or CF_GLOBAL, the container is
1047 * kept fullscreen but its mode is set to CF_GLOBAL and CF_OUTPUT,
1050 * Other fullscreen containers will be disabled first, if they hide the new
1054 void con_enable_fullscreen(Con *con, fullscreen_mode_t fullscreen_mode) {
1055 if (con->type == CT_WORKSPACE) {
1056 DLOG("You cannot make a workspace fullscreen.\n");
1060 assert(fullscreen_mode == CF_GLOBAL || fullscreen_mode == CF_OUTPUT);
1062 if (fullscreen_mode == CF_GLOBAL)
1063 DLOG("enabling global fullscreen for %p / %s\n", con, con->name);
1065 DLOG("enabling fullscreen for %p / %s\n", con, con->name);
1067 if (con->fullscreen_mode == fullscreen_mode) {
1068 DLOG("fullscreen already enabled for %p / %s\n", con, con->name);
1072 Con *con_ws = con_get_workspace(con);
1074 /* Disable any fullscreen container that would conflict the new one. */
1075 Con *fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
1076 if (fullscreen == NULL)
1077 fullscreen = con_get_fullscreen_con(con_ws, CF_OUTPUT);
1078 if (fullscreen != NULL)
1079 con_disable_fullscreen(fullscreen);
1081 /* Set focus to new fullscreen container. Unless in global fullscreen mode
1082 * and on another workspace restore focus afterwards.
1083 * Switch to the container’s workspace if mode is global. */
1084 Con *cur_ws = con_get_workspace(focused);
1085 Con *old_focused = focused;
1086 if (fullscreen_mode == CF_GLOBAL && cur_ws != con_ws)
1087 workspace_show(con_ws);
1089 if (fullscreen_mode != CF_GLOBAL && cur_ws != con_ws)
1090 con_activate(old_focused);
1092 con_set_fullscreen_mode(con, fullscreen_mode);
1096 * Disables fullscreen mode for the given container regardless of the mode, if
1100 void con_disable_fullscreen(Con *con) {
1101 if (con->type == CT_WORKSPACE) {
1102 DLOG("You cannot make a workspace fullscreen.\n");
1106 DLOG("disabling fullscreen for %p / %s\n", con, con->name);
1108 if (con->fullscreen_mode == CF_NONE) {
1109 DLOG("fullscreen already disabled for %p / %s\n", con, con->name);
1113 con_set_fullscreen_mode(con, CF_NONE);
1116 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) {
1117 Con *orig_target = target;
1119 /* Prevent moving if this would violate the fullscreen focus restrictions. */
1120 Con *target_ws = con_get_workspace(target);
1121 if (!ignore_focus && !con_fullscreen_permits_focusing(target_ws)) {
1122 LOG("Cannot move out of a fullscreen container.\n");
1126 if (con_is_floating(con)) {
1127 DLOG("Container is floating, using parent instead.\n");
1131 Con *source_ws = con_get_workspace(con);
1133 if (con->type == CT_WORKSPACE) {
1134 /* Re-parent all of the old workspace's floating windows. */
1136 while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
1137 child = TAILQ_FIRST(&(source_ws->floating_head));
1138 con_move_to_workspace(child, target_ws, true, true, false);
1141 /* If there are no non-floating children, ignore the workspace. */
1142 if (con_is_leaf(con))
1145 con = workspace_encapsulate(con);
1147 ELOG("Workspace failed to move its contents into a container!\n");
1152 /* Save the urgency state so that we can restore it. */
1153 bool urgent = con->urgent;
1155 /* Save the current workspace. So we can call workspace_show() by the end
1156 * of this function. */
1157 Con *current_ws = con_get_workspace(focused);
1159 Con *source_output = con_get_output(con),
1160 *dest_output = con_get_output(target_ws);
1162 /* 1: save the container which is going to be focused after the current
1163 * container is moved away */
1164 Con *focus_next = NULL;
1165 if (!ignore_focus && source_ws == current_ws) {
1166 focus_next = con_descend_focused(source_ws);
1167 if (focus_next == con || con_has_parent(focus_next, con)) {
1168 focus_next = con_next_focused(con);
1172 /* 2: we go up one level, but only when target is a normal container */
1173 if (target->type != CT_WORKSPACE) {
1174 DLOG("target originally = %p / %s / type %d\n", target, target->name, target->type);
1175 target = target->parent;
1178 /* 3: if the original target is the direct child of a floating container, we
1179 * can't move con next to it - floating containers have only one child - so
1180 * we get the workspace instead. */
1181 if (target->type == CT_FLOATING_CON) {
1182 DLOG("floatingcon, going up even further\n");
1183 orig_target = target;
1184 target = target->parent;
1187 if (con->type == CT_FLOATING_CON) {
1188 Con *ws = con_get_workspace(target);
1189 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
1193 if (source_output != dest_output) {
1194 /* Take the relative coordinates of the current output, then add them
1195 * to the coordinate space of the correct output */
1196 if (fix_coordinates && con->type == CT_FLOATING_CON) {
1197 floating_fix_coordinates(con, &(source_output->rect), &(dest_output->rect));
1199 DLOG("Not fixing coordinates, fix_coordinates flag = %d\n", fix_coordinates);
1202 /* If moving a fullscreen container and the destination already has a
1203 * fullscreen window on it, un-fullscreen the target's fullscreen con. */
1204 Con *fullscreen = con_get_fullscreen_con(target_ws, CF_OUTPUT);
1205 if (con->fullscreen_mode != CF_NONE && fullscreen != NULL) {
1206 con_toggle_fullscreen(fullscreen, CF_OUTPUT);
1210 DLOG("Re-attaching container to %p / %s\n", target, target->name);
1211 /* 4: re-attach the con to the parent of this focused container */
1212 Con *parent = con->parent;
1214 _con_attach(con, target, behind_focused ? NULL : orig_target, !behind_focused);
1216 /* 5: fix the percentages */
1217 if (fix_percentage) {
1218 con_fix_percent(parent);
1220 con_fix_percent(target);
1223 /* 6: focus the con on the target workspace, but only within that
1224 * workspace, that is, don’t move focus away if the target workspace is
1226 * We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
1227 * we don’t focus when there is a fullscreen con on that workspace. We
1228 * also don't do it if the caller requested to ignore focus. */
1229 if (!ignore_focus && !con_is_internal(target_ws) && !fullscreen) {
1230 /* We need to save the focused workspace on the output in case the
1231 * new workspace is hidden and it's necessary to immediately switch
1232 * back to the originally-focused workspace. */
1233 Con *old_focus_ws = TAILQ_FIRST(&(output_get_content(dest_output)->focus_head));
1234 Con *old_focus = focused;
1235 con_activate(con_descend_focused(con));
1237 if (old_focus_ws == current_ws && old_focus->type != CT_WORKSPACE) {
1238 /* Restore focus to the currently focused container. */
1239 con_activate(old_focus);
1240 } else if (con_get_workspace(focused) != old_focus_ws) {
1241 /* Restore focus if the output's focused workspace has changed. */
1242 con_focus(con_descend_focused(old_focus_ws));
1246 /* 7: when moving to another workspace, we leave the focus on the current
1247 * workspace. (see also #809) */
1248 if (!ignore_focus) {
1249 workspace_show(current_ws);
1251 DLOG("x_set_warp_to(NULL) because dont_warp is set\n");
1252 x_set_warp_to(NULL);
1256 /* Set focus only if con was on current workspace before moving.
1257 * Otherwise we would give focus to some window on different workspace. */
1259 con_activate(con_descend_focused(focus_next));
1261 /* 8. If anything within the container is associated with a startup sequence,
1262 * delete it so child windows won't be created on the old workspace. */
1263 struct Startup_Sequence *sequence;
1264 xcb_get_property_cookie_t cookie;
1265 xcb_get_property_reply_t *startup_id_reply;
1267 if (!con_is_leaf(con)) {
1269 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1273 cookie = xcb_get_property(conn, false, child->window->id,
1274 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1275 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1277 sequence = startup_sequence_get(child->window, startup_id_reply, true);
1278 if (sequence != NULL)
1279 startup_sequence_delete(sequence);
1284 cookie = xcb_get_property(conn, false, con->window->id,
1285 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1286 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1288 sequence = startup_sequence_get(con->window, startup_id_reply, true);
1289 if (sequence != NULL)
1290 startup_sequence_delete(sequence);
1293 /* 9. If the container was marked urgent, move the urgency hint. */
1295 workspace_update_urgent_flag(source_ws);
1296 con_set_urgency(con, true);
1299 /* Ensure the container will be redrawn. */
1300 FREE(con->deco_render_params);
1302 CALL(parent, on_remove_child);
1304 ipc_send_window_event("move", con);
1305 ewmh_update_wm_desktop();
1310 * Moves the given container to the given mark.
1313 bool con_move_to_mark(Con *con, const char *mark) {
1314 Con *target = con_by_mark(mark);
1315 if (target == NULL) {
1316 DLOG("found no container with mark \"%s\"\n", mark);
1320 /* For floating target containers, we just send the window to the same workspace. */
1321 if (con_is_floating(target)) {
1322 DLOG("target container is floating, moving container to target's workspace.\n");
1323 con_move_to_workspace(con, con_get_workspace(target), true, false, false);
1327 if (target->type == CT_WORKSPACE) {
1328 DLOG("target container is a workspace, simply moving the container there.\n");
1329 con_move_to_workspace(con, target, true, false, false);
1333 /* For split containers, we use the currently focused container within it.
1334 * This allows setting marks on, e.g., tabbed containers which will move
1335 * con to a new tab behind the focused tab. */
1336 if (con_is_split(target)) {
1337 DLOG("target is a split container, descending to the currently focused child.\n");
1338 target = TAILQ_FIRST(&(target->focus_head));
1341 if (con == target || con_has_parent(target, con)) {
1342 DLOG("cannot move the container to or inside itself, aborting.\n");
1346 return _con_move_to_con(con, target, false, true, false, false, true);
1350 * Moves the given container to the currently focused container on the given
1353 * The fix_coordinates flag will translate the current coordinates (offset from
1354 * the monitor position basically) to appropriate coordinates on the
1355 * destination workspace.
1356 * Not enabling this behaviour comes in handy when this function gets called by
1357 * floating_maybe_reassign_ws, which will only "move" a floating window when it
1358 * *already* changed its coordinates to a different output.
1360 * The dont_warp flag disables pointer warping and will be set when this
1361 * function is called while dragging a floating window.
1363 * If ignore_focus is set, the container will be moved without modifying focus
1366 * TODO: is there a better place for this function?
1369 void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
1370 assert(workspace->type == CT_WORKSPACE);
1372 Con *source_ws = con_get_workspace(con);
1373 if (workspace == source_ws) {
1374 DLOG("Not moving, already there\n");
1378 Con *target = con_descend_focused(workspace);
1379 _con_move_to_con(con, target, true, fix_coordinates, dont_warp, ignore_focus, true);
1383 * Moves the given container to the currently focused container on the
1384 * visible workspace on the given output.
1387 void con_move_to_output(Con *con, Output *output, bool fix_coordinates) {
1389 GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1391 DLOG("Moving con %p to output %s\n", con, output_primary_name(output));
1392 con_move_to_workspace(con, ws, fix_coordinates, false, false);
1396 * Moves the given container to the currently focused container on the
1397 * visible workspace on the output specified by the given name.
1398 * The current output for the container is used to resolve relative names
1399 * such as left, right, up, down.
1402 bool con_move_to_output_name(Con *con, const char *name, bool fix_coordinates) {
1403 Output *current_output = get_output_for_con(con);
1404 assert(current_output != NULL);
1406 Output *output = get_output_from_string(current_output, name);
1407 if (output == NULL) {
1408 ELOG("Could not find output \"%s\"\n", name);
1412 con_move_to_output(con, output, fix_coordinates);
1417 * Returns the orientation of the given container (for stacked containers,
1418 * vertical orientation is used regardless of the actual orientation of the
1422 orientation_t con_orientation(Con *con) {
1423 switch (con->layout) {
1425 /* stacking containers behave like they are in vertical orientation */
1430 /* tabbed containers behave like they are in vertical orientation */
1435 ELOG("Someone called con_orientation() on a con with L_DEFAULT, this is a bug in the code.\n");
1440 ELOG("con_orientation() called on dockarea/output (%d) container %p\n", con->layout, con);
1443 /* should not be reached */
1448 * Returns the container which will be focused next when the given container
1449 * is not available anymore. Called in tree_close_internal and con_move_to_workspace
1450 * to properly restore focus.
1453 Con *con_next_focused(Con *con) {
1454 /* dock clients cannot be focused, so we focus the workspace instead */
1455 if (con->parent->type == CT_DOCKAREA) {
1456 DLOG("selecting workspace for dock client\n");
1457 return con_descend_focused(output_get_content(con->parent->parent));
1459 if (con_is_floating(con)) {
1463 /* if 'con' is not the first entry in the focus stack, use the first one as
1464 * it’s currently focused already */
1465 Con *next = TAILQ_FIRST(&(con->parent->focus_head));
1467 DLOG("Using first entry %p\n", next);
1469 /* try to focus the next container on the same level as this one or fall
1470 * back to its parent */
1471 if (!(next = TAILQ_NEXT(con, focused))) {
1476 /* now go down the focus stack as far as
1477 * possible, excluding the current container */
1478 while (!TAILQ_EMPTY(&(next->focus_head)) && TAILQ_FIRST(&(next->focus_head)) != con) {
1479 next = TAILQ_FIRST(&(next->focus_head));
1482 if (con->type == CT_FLOATING_CON && next != con->parent) {
1483 next = con_descend_focused(next);
1490 * Get the next/previous container in the specified orientation. This may
1491 * travel up until it finds a container with suitable orientation.
1494 Con *con_get_next(Con *con, char way, orientation_t orientation) {
1495 DLOG("con_get_next(way=%c, orientation=%d)\n", way, orientation);
1496 /* 1: get the first parent with the same orientation */
1498 while (con_orientation(cur->parent) != orientation) {
1499 DLOG("need to go one level further up\n");
1500 if (cur->parent->type == CT_WORKSPACE) {
1501 LOG("that's a workspace, we can't go further up\n");
1507 /* 2: chose next (or previous) */
1510 next = TAILQ_NEXT(cur, nodes);
1511 /* if we are at the end of the list, we need to wrap */
1512 if (next == TAILQ_END(&(parent->nodes_head)))
1515 next = TAILQ_PREV(cur, nodes_head, nodes);
1516 /* if we are at the end of the list, we need to wrap */
1517 if (next == TAILQ_END(&(cur->nodes_head)))
1520 DLOG("next = %p\n", next);
1526 * Returns the focused con inside this client, descending the tree as far as
1527 * possible. This comes in handy when attaching a con to a workspace at the
1528 * currently focused position, for example.
1531 Con *con_descend_focused(Con *con) {
1533 while (next != focused && !TAILQ_EMPTY(&(next->focus_head)))
1534 next = TAILQ_FIRST(&(next->focus_head));
1539 * Returns the focused con inside this client, descending the tree as far as
1540 * possible. This comes in handy when attaching a con to a workspace at the
1541 * currently focused position, for example.
1543 * Works like con_descend_focused but considers only tiling cons.
1546 Con *con_descend_tiling_focused(Con *con) {
1550 if (next == focused)
1554 TAILQ_FOREACH(child, &(next->focus_head), focused) {
1555 if (child->type == CT_FLOATING_CON)
1561 } while (before != next && next != focused);
1566 * Returns the leftmost, rightmost, etc. container in sub-tree. For example, if
1567 * direction is D_LEFT, then we return the rightmost container and if direction
1568 * is D_RIGHT, we return the leftmost container. This is because if we are
1569 * moving D_LEFT, and thus want the rightmost container.
1572 Con *con_descend_direction(Con *con, direction_t direction) {
1575 int orientation = con_orientation(con);
1576 DLOG("con_descend_direction(%p, orientation %d, direction %d)\n", con, orientation, direction);
1577 if (direction == D_LEFT || direction == D_RIGHT) {
1578 if (orientation == HORIZ) {
1579 /* If the direction is horizontal, we can use either the first
1580 * (D_RIGHT) or the last con (D_LEFT) */
1581 if (direction == D_RIGHT)
1582 most = TAILQ_FIRST(&(con->nodes_head));
1584 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1585 } else if (orientation == VERT) {
1586 /* Wrong orientation. We use the last focused con. Within that con,
1587 * we recurse to chose the left/right con or at least the last
1589 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1590 if (current->type != CT_FLOATING_CON) {
1596 /* If the con has no orientation set, it’s not a split container
1597 * but a container with a client window, so stop recursing */
1602 if (direction == D_UP || direction == D_DOWN) {
1603 if (orientation == VERT) {
1604 /* If the direction is vertical, we can use either the first
1605 * (D_DOWN) or the last con (D_UP) */
1606 if (direction == D_UP)
1607 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1609 most = TAILQ_FIRST(&(con->nodes_head));
1610 } else if (orientation == HORIZ) {
1611 /* Wrong orientation. We use the last focused con. Within that con,
1612 * we recurse to chose the top/bottom con or at least the last
1614 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1615 if (current->type != CT_FLOATING_CON) {
1621 /* If the con has no orientation set, it’s not a split container
1622 * but a container with a client window, so stop recursing */
1629 return con_descend_direction(most, direction);
1633 * Returns a "relative" Rect which contains the amount of pixels that need to
1634 * be added to the original Rect to get the final position (obviously the
1635 * amount of pixels for normal, 1pixel and borderless are different).
1638 Rect con_border_style_rect(Con *con) {
1639 if (config.hide_edge_borders == HEBM_SMART && con_num_visible_children(con_get_workspace(con)) <= 1) {
1640 if (!con_is_floating(con)) {
1641 return (Rect){0, 0, 0, 0};
1645 adjacent_t borders_to_hide = ADJ_NONE;
1646 int border_width = con->current_border_width;
1647 DLOG("The border width for con is set to: %d\n", con->current_border_width);
1649 if (con->current_border_width < 0) {
1650 if (con_is_floating(con)) {
1651 border_width = config.default_floating_border_width;
1653 border_width = config.default_border_width;
1656 DLOG("Effective border width is set to: %d\n", border_width);
1657 /* Shortcut to avoid calling con_adjacent_borders() on dock containers. */
1658 int border_style = con_border_style(con);
1659 if (border_style == BS_NONE)
1660 return (Rect){0, 0, 0, 0};
1661 if (border_style == BS_NORMAL) {
1662 result = (Rect){border_width, 0, -(2 * border_width), -(border_width)};
1664 result = (Rect){border_width, border_width, -(2 * border_width), -(2 * border_width)};
1667 borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
1668 if (borders_to_hide & ADJ_LEFT_SCREEN_EDGE) {
1669 result.x -= border_width;
1670 result.width += border_width;
1672 if (borders_to_hide & ADJ_RIGHT_SCREEN_EDGE) {
1673 result.width += border_width;
1675 if (borders_to_hide & ADJ_UPPER_SCREEN_EDGE && (border_style != BS_NORMAL)) {
1676 result.y -= border_width;
1677 result.height += border_width;
1679 if (borders_to_hide & ADJ_LOWER_SCREEN_EDGE) {
1680 result.height += border_width;
1686 * Returns adjacent borders of the window. We need this if hide_edge_borders is
1689 adjacent_t con_adjacent_borders(Con *con) {
1690 adjacent_t result = ADJ_NONE;
1691 /* Floating windows are never adjacent to any other window, so
1692 don’t hide their border(s). This prevents bug #998. */
1693 if (con_is_floating(con))
1696 Con *workspace = con_get_workspace(con);
1697 if (con->rect.x == workspace->rect.x)
1698 result |= ADJ_LEFT_SCREEN_EDGE;
1699 if (con->rect.x + con->rect.width == workspace->rect.x + workspace->rect.width)
1700 result |= ADJ_RIGHT_SCREEN_EDGE;
1701 if (con->rect.y == workspace->rect.y)
1702 result |= ADJ_UPPER_SCREEN_EDGE;
1703 if (con->rect.y + con->rect.height == workspace->rect.y + workspace->rect.height)
1704 result |= ADJ_LOWER_SCREEN_EDGE;
1709 * Use this function to get a container’s border style. This is important
1710 * because when inside a stack, the border style is always BS_NORMAL.
1711 * For tabbed mode, the same applies, with one exception: when the container is
1712 * borderless and the only element in the tabbed container, the border is not
1715 * For children of a CT_DOCKAREA, the border style is always none.
1718 int con_border_style(Con *con) {
1719 if (con->fullscreen_mode == CF_OUTPUT || con->fullscreen_mode == CF_GLOBAL) {
1720 DLOG("this one is fullscreen! overriding BS_NONE\n");
1724 if (con->parent->layout == L_STACKED)
1725 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1727 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
1728 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1730 if (con->parent->type == CT_DOCKAREA)
1733 return con->border_style;
1737 * Sets the given border style on con, correctly keeping the position/size of a
1741 void con_set_border_style(Con *con, int border_style, int border_width) {
1742 /* Handle the simple case: non-floating containerns */
1743 if (!con_is_floating(con)) {
1744 con->border_style = border_style;
1745 con->current_border_width = border_width;
1749 /* For floating containers, we want to keep the position/size of the
1750 * *window* itself. We first add the border pixels to con->rect to make
1751 * con->rect represent the absolute position of the window (same for
1752 * parent). Then, we change the border style and subtract the new border
1753 * pixels. For the parent, we do the same also for the decoration. */
1754 DLOG("This is a floating container\n");
1756 Con *parent = con->parent;
1757 Rect bsr = con_border_style_rect(con);
1758 int deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1760 con->rect = rect_add(con->rect, bsr);
1761 parent->rect = rect_add(parent->rect, bsr);
1762 parent->rect.y += deco_height;
1763 parent->rect.height -= deco_height;
1765 /* Change the border style, get new border/decoration values. */
1766 con->border_style = border_style;
1767 con->current_border_width = border_width;
1768 bsr = con_border_style_rect(con);
1769 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1771 con->rect = rect_sub(con->rect, bsr);
1772 parent->rect = rect_sub(parent->rect, bsr);
1773 parent->rect.y -= deco_height;
1774 parent->rect.height += deco_height;
1778 * This function changes the layout of a given container. Use it to handle
1779 * special cases like changing a whole workspace to stacked/tabbed (creates a
1780 * new split container before).
1783 void con_set_layout(Con *con, layout_t layout) {
1784 DLOG("con_set_layout(%p, %d), con->type = %d\n",
1785 con, layout, con->type);
1787 /* Users can focus workspaces, but not any higher in the hierarchy.
1788 * Focus on the workspace is a special case, since in every other case, the
1789 * user means "change the layout of the parent split container". */
1790 if (con->type != CT_WORKSPACE)
1793 /* We fill in last_split_layout when switching to a different layout
1794 * since there are many places in the code that don’t use
1795 * con_set_layout(). */
1796 if (con->layout == L_SPLITH || con->layout == L_SPLITV)
1797 con->last_split_layout = con->layout;
1799 /* When the container type is CT_WORKSPACE, the user wants to change the
1800 * whole workspace into stacked/tabbed mode. To do this and still allow
1801 * intuitive operations (like level-up and then opening a new window), we
1802 * need to create a new split container. */
1803 if (con->type == CT_WORKSPACE) {
1804 if (con_num_children(con) == 0) {
1805 layout_t ws_layout = (layout == L_STACKED || layout == L_TABBED) ? layout : L_DEFAULT;
1806 DLOG("Setting workspace_layout to %d\n", ws_layout);
1807 con->workspace_layout = ws_layout;
1808 DLOG("Setting layout to %d\n", layout);
1809 con->layout = layout;
1810 } else if (layout == L_STACKED || layout == L_TABBED || layout == L_SPLITV || layout == L_SPLITH) {
1811 DLOG("Creating new split container\n");
1812 /* 1: create a new split container */
1813 Con *new = con_new(NULL, NULL);
1816 /* 2: Set the requested layout on the split container and mark it as
1818 new->layout = layout;
1819 new->last_split_layout = con->last_split_layout;
1821 /* 3: move the existing cons of this workspace below the new con */
1822 Con **focus_order = get_focus_order(con);
1824 DLOG("Moving cons\n");
1826 while (!TAILQ_EMPTY(&(con->nodes_head))) {
1827 child = TAILQ_FIRST(&(con->nodes_head));
1829 con_attach(child, new, true);
1832 set_focus_order(new, focus_order);
1835 /* 4: attach the new split container to the workspace */
1836 DLOG("Attaching new split to ws\n");
1837 con_attach(new, con, false);
1839 tree_flatten(croot);
1841 con_force_split_parents_redraw(con);
1845 if (layout == L_DEFAULT) {
1846 /* Special case: the layout formerly known as "default" (in combination
1847 * with an orientation). Since we switched to splith/splitv layouts,
1848 * using the "default" layout (which "only" should happen when using
1849 * legacy configs) is using the last split layout (either splith or
1850 * splitv) in order to still do the same thing. */
1851 con->layout = con->last_split_layout;
1852 /* In case last_split_layout was not initialized… */
1853 if (con->layout == L_DEFAULT)
1854 con->layout = L_SPLITH;
1856 con->layout = layout;
1858 con_force_split_parents_redraw(con);
1862 * This function toggles the layout of a given container. toggle_mode can be
1863 * either 'default' (toggle only between stacked/tabbed/last_split_layout),
1864 * 'split' (toggle only between splitv/splith) or 'all' (toggle between all
1868 void con_toggle_layout(Con *con, const char *toggle_mode) {
1870 /* Users can focus workspaces, but not any higher in the hierarchy.
1871 * Focus on the workspace is a special case, since in every other case, the
1872 * user means "change the layout of the parent split container". */
1873 if (con->type != CT_WORKSPACE)
1874 parent = con->parent;
1875 DLOG("con_toggle_layout(%p, %s), parent = %p\n", con, toggle_mode, parent);
1877 const char delim[] = " ";
1879 if (strcasecmp(toggle_mode, "split") == 0 || strstr(toggle_mode, delim)) {
1880 /* L_DEFAULT is used as a placeholder value to distinguish if
1881 * the first layout has already been saved. (it can never be L_DEFAULT) */
1882 layout_t new_layout = L_DEFAULT;
1883 bool current_layout_found = false;
1884 char *tm_dup = sstrdup(toggle_mode);
1885 char *cur_tok = strtok(tm_dup, delim);
1887 for (layout_t layout; cur_tok != NULL; cur_tok = strtok(NULL, delim)) {
1888 if (strcasecmp(cur_tok, "split") == 0) {
1889 /* Toggle between splits. When the current layout is not a split
1890 * layout, we just switch back to last_split_layout. Otherwise, we
1891 * change to the opposite split layout. */
1892 if (parent->layout != L_SPLITH && parent->layout != L_SPLITV) {
1893 layout = parent->last_split_layout;
1894 /* In case last_split_layout was not initialized… */
1895 if (layout == L_DEFAULT) {
1899 layout = (parent->layout == L_SPLITH) ? L_SPLITV : L_SPLITH;
1902 bool success = layout_from_name(cur_tok, &layout);
1903 if (!success || layout == L_DEFAULT) {
1904 ELOG("The token '%s' was not recognized and has been skipped.\n", cur_tok);
1909 /* If none of the specified layouts match the current,
1910 * fall back to the first layout in the list */
1911 if (new_layout == L_DEFAULT) {
1912 new_layout = layout;
1915 /* We found the active layout in the last iteration, so
1916 * now let's activate the current layout (next in list) */
1917 if (current_layout_found) {
1918 new_layout = layout;
1922 if (parent->layout == layout) {
1923 current_layout_found = true;
1928 if (new_layout != L_DEFAULT) {
1929 con_set_layout(con, new_layout);
1931 } else if (strcasecmp(toggle_mode, "all") == 0 || strcasecmp(toggle_mode, "default") == 0) {
1932 if (parent->layout == L_STACKED)
1933 con_set_layout(con, L_TABBED);
1934 else if (parent->layout == L_TABBED) {
1935 if (strcasecmp(toggle_mode, "all") == 0)
1936 con_set_layout(con, L_SPLITH);
1938 con_set_layout(con, parent->last_split_layout);
1939 } else if (parent->layout == L_SPLITH || parent->layout == L_SPLITV) {
1940 if (strcasecmp(toggle_mode, "all") == 0) {
1941 /* When toggling through all modes, we toggle between
1942 * splith/splitv, whereas normally we just directly jump to
1944 if (parent->layout == L_SPLITH)
1945 con_set_layout(con, L_SPLITV);
1947 con_set_layout(con, L_STACKED);
1949 con_set_layout(con, L_STACKED);
1956 * Callback which will be called when removing a child from the given con.
1957 * Kills the container if it is empty and replaces it with the child if there
1958 * is exactly one child.
1961 static void con_on_remove_child(Con *con) {
1962 DLOG("on_remove_child\n");
1964 /* Every container 'above' (in the hierarchy) the workspace content should
1965 * not be closed when the last child was removed */
1966 if (con->type == CT_OUTPUT ||
1967 con->type == CT_ROOT ||
1968 con->type == CT_DOCKAREA ||
1969 (con->parent != NULL && con->parent->type == CT_OUTPUT)) {
1970 DLOG("not handling, type = %d, name = %s\n", con->type, con->name);
1974 /* For workspaces, close them only if they're not visible anymore */
1975 if (con->type == CT_WORKSPACE) {
1976 if (TAILQ_EMPTY(&(con->focus_head)) && !workspace_is_visible(con)) {
1977 LOG("Closing old workspace (%p / %s), it is empty\n", con, con->name);
1978 yajl_gen gen = ipc_marshal_workspace_event("empty", con, NULL);
1979 tree_close_internal(con, DONT_KILL_WINDOW, false);
1981 const unsigned char *payload;
1983 y(get_buf, &payload, &length);
1984 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, (const char *)payload);
1991 con_force_split_parents_redraw(con);
1992 con->urgent = con_has_urgent_child(con);
1993 con_update_parents_urgency(con);
1995 /* TODO: check if this container would swallow any other client and
1996 * don’t close it automatically. */
1997 int children = con_num_children(con);
1998 if (children == 0) {
1999 DLOG("Container empty, closing\n");
2000 tree_close_internal(con, DONT_KILL_WINDOW, false);
2006 * Determines the minimum size of the given con by looking at its children (for
2007 * split/stacked/tabbed cons). Will be called when resizing floating cons
2010 Rect con_minimum_size(Con *con) {
2011 DLOG("Determining minimum size for con %p\n", con);
2013 if (con_is_leaf(con)) {
2014 DLOG("leaf node, returning 75x50\n");
2015 return (Rect){0, 0, 75, 50};
2018 if (con->type == CT_FLOATING_CON) {
2019 DLOG("floating con\n");
2020 Con *child = TAILQ_FIRST(&(con->nodes_head));
2021 return con_minimum_size(child);
2024 if (con->layout == L_STACKED || con->layout == L_TABBED) {
2025 uint32_t max_width = 0, max_height = 0, deco_height = 0;
2027 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2028 Rect min = con_minimum_size(child);
2029 deco_height += child->deco_rect.height;
2030 max_width = max(max_width, min.width);
2031 max_height = max(max_height, min.height);
2033 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
2034 max_width, max_height, deco_height);
2035 return (Rect){0, 0, max_width, max_height + deco_height};
2038 /* For horizontal/vertical split containers we sum up the width (h-split)
2039 * or height (v-split) and use the maximum of the height (h-split) or width
2040 * (v-split) as minimum size. */
2041 if (con_is_split(con)) {
2042 uint32_t width = 0, height = 0;
2044 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2045 Rect min = con_minimum_size(child);
2046 if (con->layout == L_SPLITH) {
2048 height = max(height, min.height);
2050 height += min.height;
2051 width = max(width, min.width);
2054 DLOG("split container, returning width = %d x height = %d\n", width, height);
2055 return (Rect){0, 0, width, height};
2058 ELOG("Unhandled case, type = %d, layout = %d, split = %d\n",
2059 con->type, con->layout, con_is_split(con));
2064 * Returns true if changing the focus to con would be allowed considering
2065 * the fullscreen focus constraints. Specifically, if a fullscreen container or
2066 * any of its descendants is focused, this function returns true if and only if
2067 * focusing con would mean that focus would still be visible on screen, i.e.,
2068 * the newly focused container would not be obscured by a fullscreen container.
2070 * In the simplest case, if a fullscreen container or any of its descendants is
2071 * fullscreen, this functions returns true if con is the fullscreen container
2072 * itself or any of its descendants, as this means focus wouldn't escape the
2073 * boundaries of the fullscreen container.
2075 * In case the fullscreen container is of type CF_OUTPUT, this function returns
2076 * true if con is on a different workspace, as focus wouldn't be obscured by
2077 * the fullscreen container that is constrained to a different workspace.
2079 * Note that this same logic can be applied to moving containers. If a
2080 * container can be focused under the fullscreen focus constraints, it can also
2081 * become a parent or sibling to the currently focused container.
2084 bool con_fullscreen_permits_focusing(Con *con) {
2085 /* No focus, no problem. */
2089 /* Find the first fullscreen ascendent. */
2091 while (fs && fs->fullscreen_mode == CF_NONE)
2094 /* fs must be non-NULL since the workspace con doesn’t have CF_NONE and
2095 * there always has to be a workspace con in the hierarchy. */
2097 /* The most common case is we hit the workspace level. In this
2098 * situation, changing focus is also harmless. */
2099 assert(fs->fullscreen_mode != CF_NONE);
2100 if (fs->type == CT_WORKSPACE)
2103 /* Allow it if the container itself is the fullscreen container. */
2107 /* If fullscreen is per-output, the focus being in a different workspace is
2108 * sufficient to guarantee that change won't leave fullscreen in bad shape. */
2109 if (fs->fullscreen_mode == CF_OUTPUT &&
2110 con_get_workspace(con) != con_get_workspace(fs)) {
2114 /* Allow it only if the container to be focused is contained within the
2115 * current fullscreen container. */
2116 return con_has_parent(con, fs);
2121 * Checks if the given container has an urgent child.
2124 bool con_has_urgent_child(Con *con) {
2127 if (con_is_leaf(con))
2130 /* We are not interested in floating windows since they can only be
2131 * attached to a workspace → nodes_head instead of focus_head */
2132 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2133 if (con_has_urgent_child(child))
2141 * Make all parent containers urgent if con is urgent or clear the urgent flag
2142 * of all parent containers if there are no more urgent children left.
2145 void con_update_parents_urgency(Con *con) {
2146 Con *parent = con->parent;
2148 /* Urgency hints should not be set on any container higher up in the
2149 * hierarchy than the workspace level. Unfortunately, since the content
2150 * container has type == CT_CON, that’s not easy to verify in the loop
2151 * below, so we need another condition to catch that case: */
2152 if (con->type == CT_WORKSPACE)
2155 bool new_urgency_value = con->urgent;
2156 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
2157 if (new_urgency_value) {
2158 parent->urgent = true;
2160 /* We can only reset the urgency when the parent
2161 * has no other urgent children */
2162 if (!con_has_urgent_child(parent))
2163 parent->urgent = false;
2165 parent = parent->parent;
2170 * Set urgency flag to the container, all the parent containers and the workspace.
2173 void con_set_urgency(Con *con, bool urgent) {
2174 if (urgent && focused == con) {
2175 DLOG("Ignoring urgency flag for current client\n");
2179 const bool old_urgent = con->urgent;
2181 if (con->urgency_timer == NULL) {
2182 con->urgent = urgent;
2184 DLOG("Discarding urgency WM_HINT because timer is running\n");
2189 gettimeofday(&con->window->urgent, NULL);
2191 con->window->urgent.tv_sec = 0;
2192 con->window->urgent.tv_usec = 0;
2196 con_update_parents_urgency(con);
2199 /* Set the urgency flag on the workspace, if a workspace could be found
2200 * (for dock clients, that is not the case). */
2201 if ((ws = con_get_workspace(con)) != NULL)
2202 workspace_update_urgent_flag(ws);
2204 if (con->urgent != old_urgent) {
2205 LOG("Urgency flag changed to %d\n", con->urgent);
2206 ipc_send_window_event("urgent", con);
2211 * Create a string representing the subtree under con.
2214 char *con_get_tree_representation(Con *con) {
2215 /* this code works as follows:
2216 * 1) create a string with the layout type (D/V/H/T/S) and an opening bracket
2217 * 2) append the tree representation of the children to the string
2218 * 3) add closing bracket
2220 * The recursion ends when we hit a leaf, in which case we return the
2221 * class_instance of the contained window.
2224 /* end of recursion */
2225 if (con_is_leaf(con)) {
2227 return sstrdup("nowin");
2229 if (!con->window->class_instance)
2230 return sstrdup("noinstance");
2232 return sstrdup(con->window->class_instance);
2236 /* 1) add the Layout type to buf */
2237 if (con->layout == L_DEFAULT)
2238 buf = sstrdup("D[");
2239 else if (con->layout == L_SPLITV)
2240 buf = sstrdup("V[");
2241 else if (con->layout == L_SPLITH)
2242 buf = sstrdup("H[");
2243 else if (con->layout == L_TABBED)
2244 buf = sstrdup("T[");
2245 else if (con->layout == L_STACKED)
2246 buf = sstrdup("S[");
2248 ELOG("BUG: Code not updated to account for new layout type\n");
2252 /* 2) append representation of children */
2254 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2255 char *child_txt = con_get_tree_representation(child);
2258 sasprintf(&tmp_buf, "%s%s%s", buf,
2259 (TAILQ_FIRST(&(con->nodes_head)) == child ? "" : " "), child_txt);
2265 /* 3) close the brackets */
2267 sasprintf(&complete_buf, "%s]", buf);
2270 return complete_buf;
2274 * Returns the container's title considering the current title format.
2277 i3String *con_parse_title_format(Con *con) {
2278 assert(con->title_format != NULL);
2280 i3Window *win = con->window;
2282 /* We need to ensure that we only escape the window title if pango
2283 * is used by the current font. */
2284 const bool pango_markup = font_is_pango();
2290 title = pango_escape_markup(con_get_tree_representation(con));
2291 class = sstrdup("i3-frame");
2292 instance = sstrdup("i3-frame");
2294 title = pango_escape_markup(sstrdup((win->name == NULL) ? "" : i3string_as_utf8(win->name)));
2295 class = pango_escape_markup(sstrdup((win->class_class == NULL) ? "" : win->class_class));
2296 instance = pango_escape_markup(sstrdup((win->class_instance == NULL) ? "" : win->class_instance));
2299 placeholder_t placeholders[] = {
2300 {.name = "%title", .value = title},
2301 {.name = "%class", .value = class},
2302 {.name = "%instance", .value = instance}};
2303 const size_t num = sizeof(placeholders) / sizeof(placeholder_t);
2305 char *formatted_str = format_placeholders(con->title_format, &placeholders[0], num);
2306 i3String *formatted = i3string_from_utf8(formatted_str);
2307 i3string_set_markup(formatted, pango_markup);
2308 FREE(formatted_str);
2310 for (size_t i = 0; i < num; i++) {
2311 FREE(placeholders[i].value);
2318 * Swaps the two containers.
2321 bool con_swap(Con *first, Con *second) {
2322 assert(first != NULL);
2323 assert(second != NULL);
2324 DLOG("Swapping containers %p / %p\n", first, second);
2326 if (first->type != CT_CON) {
2327 ELOG("Only regular containers can be swapped, but found con = %p with type = %d.\n", first, first->type);
2331 if (second->type != CT_CON) {
2332 ELOG("Only regular containers can be swapped, but found con = %p with type = %d.\n", second, second->type);
2336 if (first == second) {
2337 DLOG("Swapping container %p with itself, nothing to do.\n", first);
2341 if (con_has_parent(first, second) || con_has_parent(second, first)) {
2342 ELOG("Cannot swap containers %p and %p because they are in a parent-child relationship.\n", first, second);
2346 Con *ws1 = con_get_workspace(first);
2347 Con *ws2 = con_get_workspace(second);
2348 Con *restore_focus = NULL;
2349 if (ws1 == ws2 && ws1 == con_get_workspace(focused)) {
2350 /* Preserve focus in the current workspace. */
2351 restore_focus = focused;
2352 } else if (first == focused || con_has_parent(focused, first)) {
2353 restore_focus = second;
2354 } else if (second == focused || con_has_parent(focused, second)) {
2355 restore_focus = first;
2358 #define SWAP_CONS_IN_TREE(headname, field) \
2360 struct headname *head1 = &(first->parent->headname); \
2361 struct headname *head2 = &(second->parent->headname); \
2362 Con *first_prev = TAILQ_PREV(first, headname, field); \
2363 Con *second_prev = TAILQ_PREV(second, headname, field); \
2364 if (second_prev == first) { \
2365 TAILQ_SWAP(first, second, head1, field); \
2366 } else if (first_prev == second) { \
2367 TAILQ_SWAP(second, first, head1, field); \
2369 TAILQ_REMOVE(head1, first, field); \
2370 TAILQ_REMOVE(head2, second, field); \
2371 if (second_prev == NULL) { \
2372 TAILQ_INSERT_HEAD(head2, first, field); \
2374 TAILQ_INSERT_AFTER(head2, second_prev, first, field); \
2376 if (first_prev == NULL) { \
2377 TAILQ_INSERT_HEAD(head1, second, field); \
2379 TAILQ_INSERT_AFTER(head1, first_prev, second, field); \
2384 SWAP_CONS_IN_TREE(nodes_head, nodes);
2385 SWAP_CONS_IN_TREE(focus_head, focused);
2386 SWAP(first->parent, second->parent, Con *);
2388 /* Floating nodes are children of CT_FLOATING_CONs, they are listed in
2389 * nodes_head and focus_head like all other containers. Thus, we don't need
2390 * to do anything special other than swapping the floating status and the
2391 * relevant rects. */
2392 SWAP(first->floating, second->floating, int);
2393 SWAP(first->rect, second->rect, Rect);
2394 SWAP(first->window_rect, second->window_rect, Rect);
2396 /* We need to copy each other's percentages to ensure that the geometry
2397 * doesn't change during the swap. */
2398 SWAP(first->percent, second->percent, double);
2400 if (restore_focus) {
2401 con_focus(restore_focus);
2404 /* Update new parents' & workspaces' urgency. */
2405 con_set_urgency(first, first->urgent);
2406 con_set_urgency(second, second->urgent);
2408 /* Exchange fullscreen modes, can't use SWAP because we need to call the
2409 * correct functions. */
2410 fullscreen_mode_t second_fullscreen_mode = second->fullscreen_mode;
2411 if (first->fullscreen_mode == CF_NONE) {
2412 con_disable_fullscreen(second);
2414 con_enable_fullscreen(second, first->fullscreen_mode);
2416 if (second_fullscreen_mode == CF_NONE) {
2417 con_disable_fullscreen(first);
2419 con_enable_fullscreen(first, second_fullscreen_mode);
2422 /* We don't actually need this since percentages-wise we haven't changed
2423 * anything, but we'll better be safe than sorry and just make sure as we'd
2424 * otherwise crash i3. */
2425 con_fix_percent(first->parent);
2426 con_fix_percent(second->parent);
2428 con_force_split_parents_redraw(first);
2429 con_force_split_parents_redraw(second);