2 * vim:ts=4:sw=4:expandtab
4 * i3 - an improved dynamic tiling window manager
5 * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
7 * con.c: Functions which deal with containers directly (creating containers,
8 * searching containers, getting specific properties from containers,
14 #include "yajl_utils.h"
16 static void con_on_remove_child(Con *con);
19 * force parent split containers to be redrawn
22 void con_force_split_parents_redraw(Con *con) {
25 while (parent != NULL && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
26 if (!con_is_leaf(parent)) {
27 FREE(parent->deco_render_params);
30 parent = parent->parent;
35 * Create a new container (and attach it to the given parent, if not NULL).
36 * This function only initializes the data structures.
39 Con *con_new_skeleton(Con *parent, i3Window *window) {
40 Con *new = scalloc(1, sizeof(Con));
41 new->on_remove_child = con_on_remove_child;
42 TAILQ_INSERT_TAIL(&all_cons, new, all_cons);
45 new->border_style = config.default_border;
46 new->current_border_width = -1;
48 new->depth = window->depth;
49 new->window->aspect_ratio = 0.0;
51 new->depth = root_depth;
53 DLOG("opening window\n");
55 TAILQ_INIT(&(new->floating_head));
56 TAILQ_INIT(&(new->nodes_head));
57 TAILQ_INIT(&(new->focus_head));
58 TAILQ_INIT(&(new->swallow_head));
59 TAILQ_INIT(&(new->marks_head));
62 con_attach(new, parent, false);
67 /* A wrapper for con_new_skeleton, to retain the old con_new behaviour
70 Con *con_new(Con *parent, i3Window *window) {
71 Con *new = con_new_skeleton(parent, window);
77 * Frees the specified container.
80 void con_free(Con *con) {
82 FREE(con->deco_render_params);
83 TAILQ_REMOVE(&all_cons, con, all_cons);
84 while (!TAILQ_EMPTY(&(con->swallow_head))) {
85 Match *match = TAILQ_FIRST(&(con->swallow_head));
86 TAILQ_REMOVE(&(con->swallow_head), match, matches);
90 while (!TAILQ_EMPTY(&(con->marks_head))) {
91 mark_t *mark = TAILQ_FIRST(&(con->marks_head));
92 TAILQ_REMOVE(&(con->marks_head), mark, marks);
97 DLOG("con %p freed\n", con);
100 static void _con_attach(Con *con, Con *parent, Con *previous, bool ignore_focus) {
101 con->parent = parent;
103 Con *current = previous;
104 struct nodes_head *nodes_head = &(parent->nodes_head);
105 struct focus_head *focus_head = &(parent->focus_head);
107 /* Workspaces are handled differently: they need to be inserted at the
109 if (con->type == CT_WORKSPACE) {
110 DLOG("it's a workspace. num = %d\n", con->num);
111 if (con->num == -1 || TAILQ_EMPTY(nodes_head)) {
112 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
114 current = TAILQ_FIRST(nodes_head);
115 if (con->num < current->num) {
116 /* we need to insert the container at the beginning */
117 TAILQ_INSERT_HEAD(nodes_head, con, nodes);
119 while (current->num != -1 && con->num > current->num) {
120 current = TAILQ_NEXT(current, nodes);
121 if (current == TAILQ_END(nodes_head)) {
126 /* we need to insert con after current, if current is not NULL */
128 TAILQ_INSERT_BEFORE(current, con, nodes);
130 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
133 goto add_to_focus_head;
136 if (con->type == CT_FLOATING_CON) {
137 DLOG("Inserting into floating containers\n");
138 TAILQ_INSERT_TAIL(&(parent->floating_head), con, floating_windows);
141 /* Get the first tiling container in focus stack */
142 TAILQ_FOREACH(loop, &(parent->focus_head), focused) {
143 if (loop->type == CT_FLOATING_CON)
150 /* When the container is not a split container (but contains a window)
151 * and is attached to a workspace, we check if the user configured a
152 * workspace_layout. This is done in workspace_attach_to, which will
153 * provide us with the container to which we should attach (either the
154 * workspace or a new split container with the configured
157 if (con->window != NULL &&
158 parent->type == CT_WORKSPACE &&
159 parent->workspace_layout != L_DEFAULT) {
160 DLOG("Parent is a workspace. Applying default layout...\n");
161 Con *target = workspace_attach_to(parent);
163 /* Attach the original con to this new split con instead */
164 nodes_head = &(target->nodes_head);
165 focus_head = &(target->focus_head);
166 con->parent = target;
172 /* Insert the container after the tiling container, if found.
173 * When adding to a CT_OUTPUT, just append one after another. */
174 if (current != NULL && parent->type != CT_OUTPUT) {
175 DLOG("Inserting con = %p after con %p\n", con, current);
176 TAILQ_INSERT_AFTER(nodes_head, current, con, nodes);
178 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
182 /* We insert to the TAIL because con_focus() will correct this.
183 * This way, we have the option to insert Cons without having
185 TAILQ_INSERT_TAIL(focus_head, con, focused);
186 con_force_split_parents_redraw(con);
190 * Attaches the given container to the given parent. This happens when moving
191 * a container or when inserting a new container at a specific place in the
194 * ignore_focus is to just insert the Con at the end (useful when creating a
195 * new split container *around* some containers, that is, detaching and
196 * attaching them in order without wanting to mess with the focus in between).
199 void con_attach(Con *con, Con *parent, bool ignore_focus) {
200 _con_attach(con, parent, NULL, ignore_focus);
204 * Detaches the given container from its current parent
207 void con_detach(Con *con) {
208 con_force_split_parents_redraw(con);
209 if (con->type == CT_FLOATING_CON) {
210 TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
211 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
213 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
214 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
219 * Sets input focus to the given container. Will be updated in X11 in the next
220 * run of x_push_changes().
223 void con_focus(Con *con) {
225 DLOG("con_focus = %p\n", con);
227 /* 1: set focused-pointer to the new con */
228 /* 2: exchange the position of the container in focus stack of the parent all the way up */
229 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
230 TAILQ_INSERT_HEAD(&(con->parent->focus_head), con, focused);
231 if (con->parent->parent != NULL)
232 con_focus(con->parent);
235 /* We can't blindly reset non-leaf containers since they might have
236 * other urgent children. Therefore we only reset leafs and propagate
237 * the changes upwards via con_update_parents_urgency() which does proper
238 * checks before resetting the urgency.
240 if (con->urgent && con_is_leaf(con)) {
241 con_set_urgency(con, false);
242 con_update_parents_urgency(con);
243 workspace_update_urgent_flag(con_get_workspace(con));
244 ipc_send_window_event("urgent", con);
249 * Raise container to the top if it is floating or inside some floating
253 static void con_raise(Con *con) {
254 Con *floating = con_inside_floating(con);
256 floating_raise_con(floating);
261 * Sets input focus to the given container and raises it to the top.
264 void con_activate(Con *con) {
270 * Closes the given container.
273 void con_close(Con *con, kill_window_t kill_window) {
275 DLOG("Closing con = %p.\n", con);
277 /* We never close output or root containers. */
278 if (con->type == CT_OUTPUT || con->type == CT_ROOT) {
279 DLOG("con = %p is of type %d, not closing anything.\n", con, con->type);
283 if (con->type == CT_WORKSPACE) {
284 DLOG("con = %p is a workspace, closing all children instead.\n", con);
285 Con *child, *nextchild;
286 for (child = TAILQ_FIRST(&(con->focus_head)); child;) {
287 nextchild = TAILQ_NEXT(child, focused);
288 DLOG("killing child = %p.\n", child);
289 tree_close_internal(child, kill_window, false, false);
296 tree_close_internal(con, kill_window, false, false);
300 * Returns true when this node is a leaf node (has no children)
303 bool con_is_leaf(Con *con) {
304 return TAILQ_EMPTY(&(con->nodes_head));
308 * Returns true when this con is a leaf node with a managed X11 window (e.g.,
309 * excluding dock containers)
311 bool con_has_managed_window(Con *con) {
312 return (con != NULL && con->window != NULL && con->window->id != XCB_WINDOW_NONE && con_get_workspace(con) != NULL);
316 * Returns true if this node has regular or floating children.
319 bool con_has_children(Con *con) {
320 return (!con_is_leaf(con) || !TAILQ_EMPTY(&(con->floating_head)));
324 * Returns true if a container should be considered split.
327 bool con_is_split(Con *con) {
328 if (con_is_leaf(con))
331 switch (con->layout) {
342 * This will only return true for containers which have some parent with
343 * a tabbed / stacked parent of which they are not the currently focused child.
346 bool con_is_hidden(Con *con) {
349 /* ascend to the workspace level and memorize the highest-up container
350 * which is stacked or tabbed. */
351 while (current != NULL && current->type != CT_WORKSPACE) {
352 Con *parent = current->parent;
353 if (parent != NULL && (parent->layout == L_TABBED || parent->layout == L_STACKED)) {
354 if (TAILQ_FIRST(&(parent->focus_head)) != current)
365 * Returns whether the container or any of its children is sticky.
368 bool con_is_sticky(Con *con) {
373 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
374 if (con_is_sticky(child))
382 * Returns true if this node accepts a window (if the node swallows windows,
383 * it might already have swallowed enough and cannot hold any more).
386 bool con_accepts_window(Con *con) {
387 /* 1: workspaces never accept direct windows */
388 if (con->type == CT_WORKSPACE)
391 if (con_is_split(con)) {
392 DLOG("container %p does not accept windows, it is a split container.\n", con);
396 /* TODO: if this is a swallowing container, we need to check its max_clients */
397 return (con->window == NULL);
401 * Gets the output container (first container with CT_OUTPUT in hierarchy) this
405 Con *con_get_output(Con *con) {
407 while (result != NULL && result->type != CT_OUTPUT)
408 result = result->parent;
409 /* We must be able to get an output because focus can never be set higher
410 * in the tree (root node cannot be focused). */
411 assert(result != NULL);
416 * Gets the workspace container this node is on.
419 Con *con_get_workspace(Con *con) {
421 while (result != NULL && result->type != CT_WORKSPACE)
422 result = result->parent;
427 * Searches parents of the given 'con' until it reaches one with the specified
428 * 'orientation'. Aborts when it comes across a floating_con.
431 Con *con_parent_with_orientation(Con *con, orientation_t orientation) {
432 DLOG("Searching for parent of Con %p with orientation %d\n", con, orientation);
433 Con *parent = con->parent;
434 if (parent->type == CT_FLOATING_CON)
436 while (con_orientation(parent) != orientation) {
437 DLOG("Need to go one level further up\n");
438 parent = parent->parent;
439 /* Abort when we reach a floating con, or an output con */
441 (parent->type == CT_FLOATING_CON ||
442 parent->type == CT_OUTPUT ||
443 (parent->parent && parent->parent->type == CT_OUTPUT)))
448 DLOG("Result: %p\n", parent);
453 * helper data structure for the breadth-first-search in
454 * con_get_fullscreen_con()
460 TAILQ_ENTRY(bfs_entry)
465 * Returns the first fullscreen node below this node.
468 Con *con_get_fullscreen_con(Con *con, fullscreen_mode_t fullscreen_mode) {
469 Con *current, *child;
471 /* TODO: is breadth-first-search really appropriate? (check as soon as
472 * fullscreen levels and fullscreen for containers is implemented) */
473 TAILQ_HEAD(bfs_head, bfs_entry)
474 bfs_head = TAILQ_HEAD_INITIALIZER(bfs_head);
476 struct bfs_entry *entry = smalloc(sizeof(struct bfs_entry));
478 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
480 while (!TAILQ_EMPTY(&bfs_head)) {
481 entry = TAILQ_FIRST(&bfs_head);
482 current = entry->con;
483 if (current != con && current->fullscreen_mode == fullscreen_mode) {
484 /* empty the queue */
485 while (!TAILQ_EMPTY(&bfs_head)) {
486 entry = TAILQ_FIRST(&bfs_head);
487 TAILQ_REMOVE(&bfs_head, entry, entries);
493 TAILQ_REMOVE(&bfs_head, entry, entries);
496 TAILQ_FOREACH(child, &(current->nodes_head), nodes) {
497 entry = smalloc(sizeof(struct bfs_entry));
499 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
502 TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
503 entry = smalloc(sizeof(struct bfs_entry));
505 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
513 * Returns true if the container is internal, such as __i3_scratch
516 bool con_is_internal(Con *con) {
517 return (con->name[0] == '_' && con->name[1] == '_');
521 * Returns true if the node is floating.
524 bool con_is_floating(Con *con) {
526 DLOG("checking if con %p is floating\n", con);
527 return (con->floating >= FLOATING_AUTO_ON);
531 * Returns true if the container is a docked container.
534 bool con_is_docked(Con *con) {
535 if (con->parent == NULL)
538 if (con->parent->type == CT_DOCKAREA)
541 return con_is_docked(con->parent);
545 * Checks if the given container is either floating or inside some floating
546 * container. It returns the FLOATING_CON container.
549 Con *con_inside_floating(Con *con) {
551 if (con->type == CT_FLOATING_CON)
554 if (con->floating >= FLOATING_AUTO_ON)
557 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
560 return con_inside_floating(con->parent);
564 * Checks if the given container is inside a focused container.
567 bool con_inside_focused(Con *con) {
572 return con_inside_focused(con->parent);
576 * Checks if the container has the given parent as an actual parent.
579 bool con_has_parent(Con *con, Con *parent) {
580 Con *current = con->parent;
581 if (current == NULL) {
585 if (current == parent) {
589 return con_has_parent(current, parent);
593 * Returns the container with the given client window ID or NULL if no such
597 Con *con_by_window_id(xcb_window_t window) {
599 TAILQ_FOREACH(con, &all_cons, all_cons)
600 if (con->window != NULL && con->window->id == window)
606 * Returns the container with the given container ID or NULL if no such
610 Con *con_by_con_id(long target) {
612 TAILQ_FOREACH(con, &all_cons, all_cons) {
613 if (con == (Con *)target) {
622 * Returns true if the given container (still) exists.
623 * This can be used, e.g., to make sure a container hasn't been closed in the meantime.
626 bool con_exists(Con *con) {
627 return con_by_con_id((long)con) != NULL;
631 * Returns the container with the given frame ID or NULL if no such container
635 Con *con_by_frame_id(xcb_window_t frame) {
637 TAILQ_FOREACH(con, &all_cons, all_cons)
638 if (con->frame.id == frame)
644 * Returns the container with the given mark or NULL if no such container
648 Con *con_by_mark(const char *mark) {
650 TAILQ_FOREACH(con, &all_cons, all_cons) {
651 if (con_has_mark(con, mark))
659 * Returns true if and only if the given containers holds the mark.
662 bool con_has_mark(Con *con, const char *mark) {
664 TAILQ_FOREACH(current, &(con->marks_head), marks) {
665 if (strcmp(current->name, mark) == 0)
673 * Toggles the mark on a container.
674 * If the container already has this mark, the mark is removed.
675 * Otherwise, the mark is assigned to the container.
678 void con_mark_toggle(Con *con, const char *mark, mark_mode_t mode) {
680 DLOG("Toggling mark \"%s\" on con = %p.\n", mark, con);
682 if (con_has_mark(con, mark)) {
683 con_unmark(con, mark);
685 con_mark(con, mark, mode);
690 * Assigns a mark to the container.
693 void con_mark(Con *con, const char *mark, mark_mode_t mode) {
695 DLOG("Setting mark \"%s\" on con = %p.\n", mark, con);
697 con_unmark(NULL, mark);
698 if (mode == MM_REPLACE) {
699 DLOG("Removing all existing marks on con = %p.\n", con);
702 while (!TAILQ_EMPTY(&(con->marks_head))) {
703 current = TAILQ_FIRST(&(con->marks_head));
704 con_unmark(con, current->name);
708 mark_t *new = scalloc(1, sizeof(mark_t));
709 new->name = sstrdup(mark);
710 TAILQ_INSERT_TAIL(&(con->marks_head), new, marks);
711 ipc_send_window_event("mark", con);
713 con->mark_changed = true;
717 * Removes marks from containers.
718 * If con is NULL, all containers are considered.
719 * If name is NULL, this removes all existing marks.
720 * Otherwise, it will only remove the given mark (if it is present).
723 void con_unmark(Con *con, const char *name) {
726 DLOG("Unmarking all containers.\n");
727 TAILQ_FOREACH(current, &all_cons, all_cons) {
728 if (con != NULL && current != con)
731 if (TAILQ_EMPTY(&(current->marks_head)))
735 while (!TAILQ_EMPTY(&(current->marks_head))) {
736 mark = TAILQ_FIRST(&(current->marks_head));
738 TAILQ_REMOVE(&(current->marks_head), mark, marks);
741 ipc_send_window_event("mark", current);
744 current->mark_changed = true;
747 DLOG("Removing mark \"%s\".\n", name);
748 current = (con == NULL) ? con_by_mark(name) : con;
749 if (current == NULL) {
750 DLOG("No container found with this mark, so there is nothing to do.\n");
754 DLOG("Found mark on con = %p. Removing it now.\n", current);
755 current->mark_changed = true;
758 TAILQ_FOREACH(mark, &(current->marks_head), marks) {
759 if (strcmp(mark->name, name) != 0)
763 TAILQ_REMOVE(&(current->marks_head), mark, marks);
766 ipc_send_window_event("mark", current);
773 * Returns the first container below 'con' which wants to swallow this window
777 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
780 //DLOG("searching con for window %p starting at con %p\n", window, con);
781 //DLOG("class == %s\n", window->class_class);
783 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
784 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
785 if (!match_matches_window(match, window))
787 if (store_match != NULL)
788 *store_match = match;
791 Con *result = con_for_window(child, window, store_match);
796 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
797 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
798 if (!match_matches_window(match, window))
800 if (store_match != NULL)
801 *store_match = match;
804 Con *result = con_for_window(child, window, store_match);
813 * Returns the number of children of this container.
816 int con_num_children(Con *con) {
820 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
827 * Returns the number of visible non-floating children of this container.
828 * For example, if the container contains a hsplit which has two children,
829 * this will return 2 instead of 1.
831 int con_num_visible_children(Con *con) {
837 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
838 /* Visible leaf nodes are a child. */
839 if (!con_is_hidden(current) && con_is_leaf(current))
841 /* All other containers need to be recursed. */
843 children += con_num_visible_children(current);
850 * Count the number of windows (i.e., leaf containers).
853 int con_num_windows(Con *con) {
857 if (con_has_managed_window(con))
862 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
863 num += con_num_windows(current);
870 * Updates the percent attribute of the children of the given container. This
871 * function needs to be called when a window is added or removed from a
875 void con_fix_percent(Con *con) {
877 int children = con_num_children(con);
879 // calculate how much we have distributed and how many containers
880 // with a percentage set we have
882 int children_with_percent = 0;
883 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
884 if (child->percent > 0.0) {
885 total += child->percent;
886 ++children_with_percent;
890 // if there were children without a percentage set, set to a value that
891 // will make those children proportional to all others
892 if (children_with_percent != children) {
893 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
894 if (child->percent <= 0.0) {
895 if (children_with_percent == 0) {
896 total += (child->percent = 1.0);
898 total += (child->percent = total / children_with_percent);
904 // if we got a zero, just distribute the space equally, otherwise
905 // distribute according to the proportions we got
907 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
908 child->percent = 1.0 / children;
910 } else if (total != 1.0) {
911 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
912 child->percent /= total;
918 * Toggles fullscreen mode for the given container. If there already is a
919 * fullscreen container on this workspace, fullscreen will be disabled and then
920 * enabled for the container the user wants to have in fullscreen mode.
923 void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
924 if (con->type == CT_WORKSPACE) {
925 DLOG("You cannot make a workspace fullscreen.\n");
929 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
931 if (con->fullscreen_mode == CF_NONE)
932 con_enable_fullscreen(con, fullscreen_mode);
934 con_disable_fullscreen(con);
938 * Sets the specified fullscreen mode for the given container, sends the
939 * “fullscreen_mode” event and changes the XCB fullscreen property of the
940 * container’s window, if any.
943 static void con_set_fullscreen_mode(Con *con, fullscreen_mode_t fullscreen_mode) {
944 con->fullscreen_mode = fullscreen_mode;
946 DLOG("mode now: %d\n", con->fullscreen_mode);
948 /* Send an ipc window "fullscreen_mode" event */
949 ipc_send_window_event("fullscreen_mode", con);
951 /* update _NET_WM_STATE if this container has a window */
952 /* TODO: when a window is assigned to a container which is already
953 * fullscreened, this state needs to be pushed to the client, too */
954 if (con->window == NULL)
957 if (con->fullscreen_mode != CF_NONE) {
958 DLOG("Setting _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
959 xcb_add_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
961 DLOG("Removing _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
962 xcb_remove_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
967 * Enables fullscreen mode for the given container, if necessary.
969 * If the container’s mode is already CF_OUTPUT or CF_GLOBAL, the container is
970 * kept fullscreen but its mode is set to CF_GLOBAL and CF_OUTPUT,
973 * Other fullscreen containers will be disabled first, if they hide the new
977 void con_enable_fullscreen(Con *con, fullscreen_mode_t fullscreen_mode) {
978 if (con->type == CT_WORKSPACE) {
979 DLOG("You cannot make a workspace fullscreen.\n");
983 assert(fullscreen_mode == CF_GLOBAL || fullscreen_mode == CF_OUTPUT);
985 if (fullscreen_mode == CF_GLOBAL)
986 DLOG("enabling global fullscreen for %p / %s\n", con, con->name);
988 DLOG("enabling fullscreen for %p / %s\n", con, con->name);
990 if (con->fullscreen_mode == fullscreen_mode) {
991 DLOG("fullscreen already enabled for %p / %s\n", con, con->name);
995 Con *con_ws = con_get_workspace(con);
997 /* Disable any fullscreen container that would conflict the new one. */
998 Con *fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
999 if (fullscreen == NULL)
1000 fullscreen = con_get_fullscreen_con(con_ws, CF_OUTPUT);
1001 if (fullscreen != NULL)
1002 con_disable_fullscreen(fullscreen);
1004 /* Set focus to new fullscreen container. Unless in global fullscreen mode
1005 * and on another workspace restore focus afterwards.
1006 * Switch to the container’s workspace if mode is global. */
1007 Con *cur_ws = con_get_workspace(focused);
1008 Con *old_focused = focused;
1009 if (fullscreen_mode == CF_GLOBAL && cur_ws != con_ws)
1010 workspace_show(con_ws);
1012 if (fullscreen_mode != CF_GLOBAL && cur_ws != con_ws)
1013 con_activate(old_focused);
1015 con_set_fullscreen_mode(con, fullscreen_mode);
1019 * Disables fullscreen mode for the given container regardless of the mode, if
1023 void con_disable_fullscreen(Con *con) {
1024 if (con->type == CT_WORKSPACE) {
1025 DLOG("You cannot make a workspace fullscreen.\n");
1029 DLOG("disabling fullscreen for %p / %s\n", con, con->name);
1031 if (con->fullscreen_mode == CF_NONE) {
1032 DLOG("fullscreen already disabled for %p / %s\n", con, con->name);
1036 con_set_fullscreen_mode(con, CF_NONE);
1039 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) {
1040 Con *orig_target = target;
1042 /* Prevent moving if this would violate the fullscreen focus restrictions. */
1043 Con *target_ws = con_get_workspace(target);
1044 if (!con_fullscreen_permits_focusing(target_ws)) {
1045 LOG("Cannot move out of a fullscreen container.\n");
1049 if (con_is_floating(con)) {
1050 DLOG("Container is floating, using parent instead.\n");
1054 Con *source_ws = con_get_workspace(con);
1056 if (con->type == CT_WORKSPACE) {
1057 /* Re-parent all of the old workspace's floating windows. */
1059 while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
1060 child = TAILQ_FIRST(&(source_ws->floating_head));
1061 con_move_to_workspace(child, target_ws, true, true, false);
1064 /* If there are no non-floating children, ignore the workspace. */
1065 if (con_is_leaf(con))
1068 con = workspace_encapsulate(con);
1070 ELOG("Workspace failed to move its contents into a container!\n");
1075 /* Save the urgency state so that we can restore it. */
1076 bool urgent = con->urgent;
1078 /* Save the current workspace. So we can call workspace_show() by the end
1079 * of this function. */
1080 Con *current_ws = con_get_workspace(focused);
1082 Con *source_output = con_get_output(con),
1083 *dest_output = con_get_output(target_ws);
1085 /* 1: save the container which is going to be focused after the current
1086 * container is moved away */
1087 Con *focus_next = con_next_focused(con);
1089 /* 2: we go up one level, but only when target is a normal container */
1090 if (target->type != CT_WORKSPACE) {
1091 DLOG("target originally = %p / %s / type %d\n", target, target->name, target->type);
1092 target = target->parent;
1095 /* 3: if the target container is floating, we get the workspace instead.
1096 * Only tiling windows need to get inserted next to the current container.
1098 Con *floatingcon = con_inside_floating(target);
1099 if (floatingcon != NULL) {
1100 DLOG("floatingcon, going up even further\n");
1101 target = floatingcon->parent;
1104 if (con->type == CT_FLOATING_CON) {
1105 Con *ws = con_get_workspace(target);
1106 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
1110 if (source_output != dest_output) {
1111 /* Take the relative coordinates of the current output, then add them
1112 * to the coordinate space of the correct output */
1113 if (fix_coordinates && con->type == CT_FLOATING_CON) {
1114 floating_fix_coordinates(con, &(source_output->rect), &(dest_output->rect));
1116 DLOG("Not fixing coordinates, fix_coordinates flag = %d\n", fix_coordinates);
1118 /* If moving to a visible workspace, call show so it can be considered
1119 * focused. Must do before attaching because workspace_show checks to see
1120 * if focused container is in its area. */
1121 if (!ignore_focus && workspace_is_visible(target_ws)) {
1122 workspace_show(target_ws);
1124 /* Don’t warp if told so (when dragging floating windows with the
1125 * mouse for example) */
1127 x_set_warp_to(NULL);
1129 x_set_warp_to(&(con->rect));
1133 /* If moving a fullscreen container and the destination already has a
1134 * fullscreen window on it, un-fullscreen the target's fullscreen con. */
1135 Con *fullscreen = con_get_fullscreen_con(target_ws, CF_OUTPUT);
1136 if (con->fullscreen_mode != CF_NONE && fullscreen != NULL) {
1137 con_toggle_fullscreen(fullscreen, CF_OUTPUT);
1141 DLOG("Re-attaching container to %p / %s\n", target, target->name);
1142 /* 4: re-attach the con to the parent of this focused container */
1143 Con *parent = con->parent;
1145 _con_attach(con, target, behind_focused ? NULL : orig_target, !behind_focused);
1147 /* 5: fix the percentages */
1148 if (fix_percentage) {
1149 con_fix_percent(parent);
1151 con_fix_percent(target);
1154 /* 6: focus the con on the target workspace, but only within that
1155 * workspace, that is, don’t move focus away if the target workspace is
1157 * We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
1158 * we don’t focus when there is a fullscreen con on that workspace. We
1159 * also don't do it if the caller requested to ignore focus. */
1160 if (!ignore_focus && !con_is_internal(target_ws) && !fullscreen) {
1161 /* We need to save the focused workspace on the output in case the
1162 * new workspace is hidden and it's necessary to immediately switch
1163 * back to the originally-focused workspace. */
1164 Con *old_focus = TAILQ_FIRST(&(output_get_content(dest_output)->focus_head));
1165 con_activate(con_descend_focused(con));
1167 /* Restore focus if the output's focused workspace has changed. */
1168 if (con_get_workspace(focused) != old_focus)
1169 con_activate(old_focus);
1172 /* 7: when moving to another workspace, we leave the focus on the current
1173 * workspace. (see also #809) */
1175 /* Descend focus stack in case focus_next is a workspace which can
1176 * occur if we move to the same workspace. Also show current workspace
1177 * to ensure it is focused. */
1178 if (!ignore_focus) {
1179 workspace_show(current_ws);
1181 DLOG("x_set_warp_to(NULL) because dont_warp is set\n");
1182 x_set_warp_to(NULL);
1186 /* Set focus only if con was on current workspace before moving.
1187 * Otherwise we would give focus to some window on different workspace. */
1188 if (!ignore_focus && source_ws == current_ws)
1189 con_activate(con_descend_focused(focus_next));
1191 /* 8. If anything within the container is associated with a startup sequence,
1192 * delete it so child windows won't be created on the old workspace. */
1193 struct Startup_Sequence *sequence;
1194 xcb_get_property_cookie_t cookie;
1195 xcb_get_property_reply_t *startup_id_reply;
1197 if (!con_is_leaf(con)) {
1199 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1203 cookie = xcb_get_property(conn, false, child->window->id,
1204 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1205 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1207 sequence = startup_sequence_get(child->window, startup_id_reply, true);
1208 if (sequence != NULL)
1209 startup_sequence_delete(sequence);
1214 cookie = xcb_get_property(conn, false, con->window->id,
1215 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1216 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1218 sequence = startup_sequence_get(con->window, startup_id_reply, true);
1219 if (sequence != NULL)
1220 startup_sequence_delete(sequence);
1223 /* 9. If the container was marked urgent, move the urgency hint. */
1225 workspace_update_urgent_flag(source_ws);
1226 con_set_urgency(con, true);
1229 /* Ensure the container will be redrawn. */
1230 FREE(con->deco_render_params);
1232 CALL(parent, on_remove_child);
1234 ipc_send_window_event("move", con);
1235 ewmh_update_wm_desktop();
1240 * Moves the given container to the given mark.
1243 bool con_move_to_mark(Con *con, const char *mark) {
1244 Con *target = con_by_mark(mark);
1245 if (target == NULL) {
1246 DLOG("found no container with mark \"%s\"\n", mark);
1250 /* For floating target containers, we just send the window to the same workspace. */
1251 if (con_is_floating(target)) {
1252 DLOG("target container is floating, moving container to target's workspace.\n");
1253 con_move_to_workspace(con, con_get_workspace(target), true, false, false);
1257 if (con->type == CT_WORKSPACE) {
1258 DLOG("target container is a workspace, simply moving the container there.\n");
1259 con_move_to_workspace(con, target, true, false, false);
1263 /* For split containers, we use the currently focused container within it.
1264 * This allows setting marks on, e.g., tabbed containers which will move
1265 * con to a new tab behind the focused tab. */
1266 if (con_is_split(target)) {
1267 DLOG("target is a split container, descending to the currently focused child.\n");
1268 target = TAILQ_FIRST(&(target->focus_head));
1271 if (con == target || con_has_parent(target, con)) {
1272 DLOG("cannot move the container to or inside itself, aborting.\n");
1276 return _con_move_to_con(con, target, false, true, false, false, true);
1280 * Moves the given container to the currently focused container on the given
1283 * The fix_coordinates flag will translate the current coordinates (offset from
1284 * the monitor position basically) to appropriate coordinates on the
1285 * destination workspace.
1286 * Not enabling this behaviour comes in handy when this function gets called by
1287 * floating_maybe_reassign_ws, which will only "move" a floating window when it
1288 * *already* changed its coordinates to a different output.
1290 * The dont_warp flag disables pointer warping and will be set when this
1291 * function is called while dragging a floating window.
1293 * If ignore_focus is set, the container will be moved without modifying focus
1296 * TODO: is there a better place for this function?
1299 void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
1300 assert(workspace->type == CT_WORKSPACE);
1302 Con *source_ws = con_get_workspace(con);
1303 if (workspace == source_ws) {
1304 DLOG("Not moving, already there\n");
1308 Con *target = con_descend_focused(workspace);
1309 _con_move_to_con(con, target, true, fix_coordinates, dont_warp, ignore_focus, true);
1313 * Moves the given container to the currently focused container on the
1314 * visible workspace on the given output.
1317 void con_move_to_output(Con *con, Output *output, bool fix_coordinates) {
1319 GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1321 DLOG("Moving con %p to output %s\n", con, output_primary_name(output));
1322 con_move_to_workspace(con, ws, fix_coordinates, false, false);
1326 * Moves the given container to the currently focused container on the
1327 * visible workspace on the output specified by the given name.
1328 * The current output for the container is used to resolve relative names
1329 * such as left, right, up, down.
1332 bool con_move_to_output_name(Con *con, const char *name, bool fix_coordinates) {
1333 Output *current_output = get_output_for_con(con);
1334 assert(current_output != NULL);
1336 Output *output = get_output_from_string(current_output, name);
1337 if (output == NULL) {
1338 ELOG("Could not find output \"%s\"\n", name);
1342 con_move_to_output(con, output, fix_coordinates);
1347 * Returns the orientation of the given container (for stacked containers,
1348 * vertical orientation is used regardless of the actual orientation of the
1352 orientation_t con_orientation(Con *con) {
1353 switch (con->layout) {
1355 /* stacking containers behave like they are in vertical orientation */
1360 /* tabbed containers behave like they are in vertical orientation */
1365 DLOG("Someone called con_orientation() on a con with L_DEFAULT, this is a bug in the code.\n");
1371 DLOG("con_orientation() called on dockarea/output (%d) container %p\n", con->layout, con);
1376 DLOG("con_orientation() ran into default\n");
1382 * Returns the container which will be focused next when the given container
1383 * is not available anymore. Called in tree_close_internal and con_move_to_workspace
1384 * to properly restore focus.
1387 Con *con_next_focused(Con *con) {
1389 /* floating containers are attached to a workspace, so we focus either the
1390 * next floating container (if any) or the workspace itself. */
1391 if (con->type == CT_FLOATING_CON) {
1392 DLOG("selecting next for CT_FLOATING_CON\n");
1393 next = TAILQ_NEXT(con, floating_windows);
1394 DLOG("next = %p\n", next);
1396 next = TAILQ_PREV(con, floating_head, floating_windows);
1397 DLOG("using prev, next = %p\n", next);
1400 Con *ws = con_get_workspace(con);
1402 DLOG("no more floating containers for next = %p, restoring workspace focus\n", next);
1403 while (next != TAILQ_END(&(ws->focus_head)) && !TAILQ_EMPTY(&(next->focus_head))) {
1404 next = TAILQ_FIRST(&(next->focus_head));
1406 DLOG("skipping container itself, we want the next client\n");
1407 next = TAILQ_NEXT(next, focused);
1410 if (next == TAILQ_END(&(ws->focus_head))) {
1411 DLOG("Focus list empty, returning ws\n");
1415 /* Instead of returning the next CT_FLOATING_CON, we descend it to
1416 * get an actual window to focus. */
1417 next = con_descend_focused(next);
1422 /* dock clients cannot be focused, so we focus the workspace instead */
1423 if (con->parent->type == CT_DOCKAREA) {
1424 DLOG("selecting workspace for dock client\n");
1425 return con_descend_focused(output_get_content(con->parent->parent));
1428 /* if 'con' is not the first entry in the focus stack, use the first one as
1429 * it’s currently focused already */
1430 Con *first = TAILQ_FIRST(&(con->parent->focus_head));
1432 DLOG("Using first entry %p\n", first);
1435 /* try to focus the next container on the same level as this one or fall
1436 * back to its parent */
1437 if (!(next = TAILQ_NEXT(con, focused))) {
1442 /* now go down the focus stack as far as
1443 * possible, excluding the current container */
1444 while (!TAILQ_EMPTY(&(next->focus_head)) && TAILQ_FIRST(&(next->focus_head)) != con) {
1445 next = TAILQ_FIRST(&(next->focus_head));
1452 * Get the next/previous container in the specified orientation. This may
1453 * travel up until it finds a container with suitable orientation.
1456 Con *con_get_next(Con *con, char way, orientation_t orientation) {
1457 DLOG("con_get_next(way=%c, orientation=%d)\n", way, orientation);
1458 /* 1: get the first parent with the same orientation */
1460 while (con_orientation(cur->parent) != orientation) {
1461 DLOG("need to go one level further up\n");
1462 if (cur->parent->type == CT_WORKSPACE) {
1463 LOG("that's a workspace, we can't go further up\n");
1469 /* 2: chose next (or previous) */
1472 next = TAILQ_NEXT(cur, nodes);
1473 /* if we are at the end of the list, we need to wrap */
1474 if (next == TAILQ_END(&(parent->nodes_head)))
1477 next = TAILQ_PREV(cur, nodes_head, nodes);
1478 /* if we are at the end of the list, we need to wrap */
1479 if (next == TAILQ_END(&(cur->nodes_head)))
1482 DLOG("next = %p\n", next);
1488 * Returns the focused con inside this client, descending the tree as far as
1489 * possible. This comes in handy when attaching a con to a workspace at the
1490 * currently focused position, for example.
1493 Con *con_descend_focused(Con *con) {
1495 while (next != focused && !TAILQ_EMPTY(&(next->focus_head)))
1496 next = TAILQ_FIRST(&(next->focus_head));
1501 * Returns the focused con inside this client, descending the tree as far as
1502 * possible. This comes in handy when attaching a con to a workspace at the
1503 * currently focused position, for example.
1505 * Works like con_descend_focused but considers only tiling cons.
1508 Con *con_descend_tiling_focused(Con *con) {
1512 if (next == focused)
1516 TAILQ_FOREACH(child, &(next->focus_head), focused) {
1517 if (child->type == CT_FLOATING_CON)
1523 } while (before != next && next != focused);
1528 * Returns the leftmost, rightmost, etc. container in sub-tree. For example, if
1529 * direction is D_LEFT, then we return the rightmost container and if direction
1530 * is D_RIGHT, we return the leftmost container. This is because if we are
1531 * moving D_LEFT, and thus want the rightmost container.
1534 Con *con_descend_direction(Con *con, direction_t direction) {
1537 int orientation = con_orientation(con);
1538 DLOG("con_descend_direction(%p, orientation %d, direction %d)\n", con, orientation, direction);
1539 if (direction == D_LEFT || direction == D_RIGHT) {
1540 if (orientation == HORIZ) {
1541 /* If the direction is horizontal, we can use either the first
1542 * (D_RIGHT) or the last con (D_LEFT) */
1543 if (direction == D_RIGHT)
1544 most = TAILQ_FIRST(&(con->nodes_head));
1546 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1547 } else if (orientation == VERT) {
1548 /* Wrong orientation. We use the last focused con. Within that con,
1549 * we recurse to chose the left/right con or at least the last
1551 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1552 if (current->type != CT_FLOATING_CON) {
1558 /* If the con has no orientation set, it’s not a split container
1559 * but a container with a client window, so stop recursing */
1564 if (direction == D_UP || direction == D_DOWN) {
1565 if (orientation == VERT) {
1566 /* If the direction is vertical, we can use either the first
1567 * (D_DOWN) or the last con (D_UP) */
1568 if (direction == D_UP)
1569 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1571 most = TAILQ_FIRST(&(con->nodes_head));
1572 } else if (orientation == HORIZ) {
1573 /* Wrong orientation. We use the last focused con. Within that con,
1574 * we recurse to chose the top/bottom con or at least the last
1576 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1577 if (current->type != CT_FLOATING_CON) {
1583 /* If the con has no orientation set, it’s not a split container
1584 * but a container with a client window, so stop recursing */
1591 return con_descend_direction(most, direction);
1595 * Returns a "relative" Rect which contains the amount of pixels that need to
1596 * be added to the original Rect to get the final position (obviously the
1597 * amount of pixels for normal, 1pixel and borderless are different).
1600 Rect con_border_style_rect(Con *con) {
1601 if (config.hide_edge_borders == HEBM_SMART && con_num_visible_children(con_get_workspace(con)) <= 1) {
1602 if (!con_is_floating(con)) {
1603 return (Rect){0, 0, 0, 0};
1607 adjacent_t borders_to_hide = ADJ_NONE;
1608 int border_width = con->current_border_width;
1609 DLOG("The border width for con is set to: %d\n", con->current_border_width);
1611 if (con->current_border_width < 0) {
1612 if (con_is_floating(con)) {
1613 border_width = config.default_floating_border_width;
1615 border_width = config.default_border_width;
1618 DLOG("Effective border width is set to: %d\n", border_width);
1619 /* Shortcut to avoid calling con_adjacent_borders() on dock containers. */
1620 int border_style = con_border_style(con);
1621 if (border_style == BS_NONE)
1622 return (Rect){0, 0, 0, 0};
1623 if (border_style == BS_NORMAL) {
1624 result = (Rect){border_width, 0, -(2 * border_width), -(border_width)};
1626 result = (Rect){border_width, border_width, -(2 * border_width), -(2 * border_width)};
1629 borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
1630 if (borders_to_hide & ADJ_LEFT_SCREEN_EDGE) {
1631 result.x -= border_width;
1632 result.width += border_width;
1634 if (borders_to_hide & ADJ_RIGHT_SCREEN_EDGE) {
1635 result.width += border_width;
1637 if (borders_to_hide & ADJ_UPPER_SCREEN_EDGE && (border_style != BS_NORMAL)) {
1638 result.y -= border_width;
1639 result.height += border_width;
1641 if (borders_to_hide & ADJ_LOWER_SCREEN_EDGE) {
1642 result.height += border_width;
1648 * Returns adjacent borders of the window. We need this if hide_edge_borders is
1651 adjacent_t con_adjacent_borders(Con *con) {
1652 adjacent_t result = ADJ_NONE;
1653 /* Floating windows are never adjacent to any other window, so
1654 don’t hide their border(s). This prevents bug #998. */
1655 if (con_is_floating(con))
1658 Con *workspace = con_get_workspace(con);
1659 if (con->rect.x == workspace->rect.x)
1660 result |= ADJ_LEFT_SCREEN_EDGE;
1661 if (con->rect.x + con->rect.width == workspace->rect.x + workspace->rect.width)
1662 result |= ADJ_RIGHT_SCREEN_EDGE;
1663 if (con->rect.y == workspace->rect.y)
1664 result |= ADJ_UPPER_SCREEN_EDGE;
1665 if (con->rect.y + con->rect.height == workspace->rect.y + workspace->rect.height)
1666 result |= ADJ_LOWER_SCREEN_EDGE;
1671 * Use this function to get a container’s border style. This is important
1672 * because when inside a stack, the border style is always BS_NORMAL.
1673 * For tabbed mode, the same applies, with one exception: when the container is
1674 * borderless and the only element in the tabbed container, the border is not
1677 * For children of a CT_DOCKAREA, the border style is always none.
1680 int con_border_style(Con *con) {
1681 Con *fs = con_get_fullscreen_con(con->parent, CF_OUTPUT);
1683 DLOG("this one is fullscreen! overriding BS_NONE\n");
1687 if (con->parent->layout == L_STACKED)
1688 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1690 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
1691 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1693 if (con->parent->type == CT_DOCKAREA)
1696 return con->border_style;
1700 * Sets the given border style on con, correctly keeping the position/size of a
1704 void con_set_border_style(Con *con, int border_style, int border_width) {
1705 /* Handle the simple case: non-floating containerns */
1706 if (!con_is_floating(con)) {
1707 con->border_style = border_style;
1708 con->current_border_width = border_width;
1712 /* For floating containers, we want to keep the position/size of the
1713 * *window* itself. We first add the border pixels to con->rect to make
1714 * con->rect represent the absolute position of the window (same for
1715 * parent). Then, we change the border style and subtract the new border
1716 * pixels. For the parent, we do the same also for the decoration. */
1717 DLOG("This is a floating container\n");
1719 Con *parent = con->parent;
1720 Rect bsr = con_border_style_rect(con);
1721 int deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1723 con->rect = rect_add(con->rect, bsr);
1724 parent->rect = rect_add(parent->rect, bsr);
1725 parent->rect.y += deco_height;
1726 parent->rect.height -= deco_height;
1728 /* Change the border style, get new border/decoration values. */
1729 con->border_style = border_style;
1730 con->current_border_width = border_width;
1731 bsr = con_border_style_rect(con);
1732 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1734 con->rect = rect_sub(con->rect, bsr);
1735 parent->rect = rect_sub(parent->rect, bsr);
1736 parent->rect.y -= deco_height;
1737 parent->rect.height += deco_height;
1741 * This function changes the layout of a given container. Use it to handle
1742 * special cases like changing a whole workspace to stacked/tabbed (creates a
1743 * new split container before).
1746 void con_set_layout(Con *con, layout_t layout) {
1747 DLOG("con_set_layout(%p, %d), con->type = %d\n",
1748 con, layout, con->type);
1750 /* Users can focus workspaces, but not any higher in the hierarchy.
1751 * Focus on the workspace is a special case, since in every other case, the
1752 * user means "change the layout of the parent split container". */
1753 if (con->type != CT_WORKSPACE)
1756 /* We fill in last_split_layout when switching to a different layout
1757 * since there are many places in the code that don’t use
1758 * con_set_layout(). */
1759 if (con->layout == L_SPLITH || con->layout == L_SPLITV)
1760 con->last_split_layout = con->layout;
1762 /* When the container type is CT_WORKSPACE, the user wants to change the
1763 * whole workspace into stacked/tabbed mode. To do this and still allow
1764 * intuitive operations (like level-up and then opening a new window), we
1765 * need to create a new split container. */
1766 if (con->type == CT_WORKSPACE) {
1767 if (con_num_children(con) == 0) {
1768 layout_t ws_layout = (layout == L_STACKED || layout == L_TABBED) ? layout : L_DEFAULT;
1769 DLOG("Setting workspace_layout to %d\n", ws_layout);
1770 con->workspace_layout = ws_layout;
1771 DLOG("Setting layout to %d\n", layout);
1772 con->layout = layout;
1773 } else if (layout == L_STACKED || layout == L_TABBED || layout == L_SPLITV || layout == L_SPLITH) {
1774 DLOG("Creating new split container\n");
1775 /* 1: create a new split container */
1776 Con *new = con_new(NULL, NULL);
1779 /* 2: Set the requested layout on the split container and mark it as
1781 new->layout = layout;
1782 new->last_split_layout = con->last_split_layout;
1784 /* Save the container that was focused before we move containers
1785 * around, but only if the container is visible (otherwise focus
1786 * will be restored properly automatically when switching). */
1787 Con *old_focused = TAILQ_FIRST(&(con->focus_head));
1788 if (old_focused == TAILQ_END(&(con->focus_head)))
1790 if (old_focused != NULL &&
1791 !workspace_is_visible(con_get_workspace(old_focused)))
1794 /* 3: move the existing cons of this workspace below the new con */
1795 DLOG("Moving cons\n");
1797 while (!TAILQ_EMPTY(&(con->nodes_head))) {
1798 child = TAILQ_FIRST(&(con->nodes_head));
1800 con_attach(child, new, true);
1803 /* 4: attach the new split container to the workspace */
1804 DLOG("Attaching new split to ws\n");
1805 con_attach(new, con, false);
1808 con_activate(old_focused);
1810 tree_flatten(croot);
1812 con_force_split_parents_redraw(con);
1816 if (layout == L_DEFAULT) {
1817 /* Special case: the layout formerly known as "default" (in combination
1818 * with an orientation). Since we switched to splith/splitv layouts,
1819 * using the "default" layout (which "only" should happen when using
1820 * legacy configs) is using the last split layout (either splith or
1821 * splitv) in order to still do the same thing. */
1822 con->layout = con->last_split_layout;
1823 /* In case last_split_layout was not initialized… */
1824 if (con->layout == L_DEFAULT)
1825 con->layout = L_SPLITH;
1827 con->layout = layout;
1829 con_force_split_parents_redraw(con);
1833 * This function toggles the layout of a given container. toggle_mode can be
1834 * either 'default' (toggle only between stacked/tabbed/last_split_layout),
1835 * 'split' (toggle only between splitv/splith) or 'all' (toggle between all
1839 void con_toggle_layout(Con *con, const char *toggle_mode) {
1841 /* Users can focus workspaces, but not any higher in the hierarchy.
1842 * Focus on the workspace is a special case, since in every other case, the
1843 * user means "change the layout of the parent split container". */
1844 if (con->type != CT_WORKSPACE)
1845 parent = con->parent;
1846 DLOG("con_toggle_layout(%p, %s), parent = %p\n", con, toggle_mode, parent);
1848 const char delim[] = " ";
1850 if (strcasecmp(toggle_mode, "split") == 0 || strstr(toggle_mode, delim)) {
1851 /* L_DEFAULT is used as a placeholder value to distinguish if
1852 * the first layout has already been saved. (it can never be L_DEFAULT) */
1853 layout_t new_layout = L_DEFAULT;
1854 bool current_layout_found = false;
1855 char *tm_dup = sstrdup(toggle_mode);
1856 char *cur_tok = strtok(tm_dup, delim);
1858 for (layout_t layout; cur_tok != NULL; cur_tok = strtok(NULL, delim)) {
1859 if (strcasecmp(cur_tok, "split") == 0) {
1860 /* Toggle between splits. When the current layout is not a split
1861 * layout, we just switch back to last_split_layout. Otherwise, we
1862 * change to the opposite split layout. */
1863 if (parent->layout != L_SPLITH && parent->layout != L_SPLITV) {
1864 layout = parent->last_split_layout;
1865 /* In case last_split_layout was not initialized… */
1866 if (layout == L_DEFAULT) {
1870 layout = (parent->layout == L_SPLITH) ? L_SPLITV : L_SPLITH;
1873 bool success = layout_from_name(cur_tok, &layout);
1874 if (!success || layout == L_DEFAULT) {
1875 ELOG("The token '%s' was not recognized and has been skipped.\n", cur_tok);
1880 /* If none of the specified layouts match the current,
1881 * fall back to the first layout in the list */
1882 if (new_layout == L_DEFAULT) {
1883 new_layout = layout;
1886 /* We found the active layout in the last iteration, so
1887 * now let's activate the current layout (next in list) */
1888 if (current_layout_found) {
1889 new_layout = layout;
1894 if (parent->layout == layout) {
1895 current_layout_found = true;
1899 if (new_layout != L_DEFAULT) {
1900 con_set_layout(con, new_layout);
1902 } else if (strcasecmp(toggle_mode, "all") == 0 || strcasecmp(toggle_mode, "default") == 0) {
1903 if (parent->layout == L_STACKED)
1904 con_set_layout(con, L_TABBED);
1905 else if (parent->layout == L_TABBED) {
1906 if (strcasecmp(toggle_mode, "all") == 0)
1907 con_set_layout(con, L_SPLITH);
1909 con_set_layout(con, parent->last_split_layout);
1910 } else if (parent->layout == L_SPLITH || parent->layout == L_SPLITV) {
1911 if (strcasecmp(toggle_mode, "all") == 0) {
1912 /* When toggling through all modes, we toggle between
1913 * splith/splitv, whereas normally we just directly jump to
1915 if (parent->layout == L_SPLITH)
1916 con_set_layout(con, L_SPLITV);
1918 con_set_layout(con, L_STACKED);
1920 con_set_layout(con, L_STACKED);
1927 * Callback which will be called when removing a child from the given con.
1928 * Kills the container if it is empty and replaces it with the child if there
1929 * is exactly one child.
1932 static void con_on_remove_child(Con *con) {
1933 DLOG("on_remove_child\n");
1935 /* Every container 'above' (in the hierarchy) the workspace content should
1936 * not be closed when the last child was removed */
1937 if (con->type == CT_OUTPUT ||
1938 con->type == CT_ROOT ||
1939 con->type == CT_DOCKAREA ||
1940 (con->parent != NULL && con->parent->type == CT_OUTPUT)) {
1941 DLOG("not handling, type = %d, name = %s\n", con->type, con->name);
1945 /* For workspaces, close them only if they're not visible anymore */
1946 if (con->type == CT_WORKSPACE) {
1947 if (TAILQ_EMPTY(&(con->focus_head)) && !workspace_is_visible(con)) {
1948 LOG("Closing old workspace (%p / %s), it is empty\n", con, con->name);
1949 yajl_gen gen = ipc_marshal_workspace_event("empty", con, NULL);
1950 tree_close_internal(con, DONT_KILL_WINDOW, false, false);
1952 const unsigned char *payload;
1954 y(get_buf, &payload, &length);
1955 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, (const char *)payload);
1962 con_force_split_parents_redraw(con);
1963 con->urgent = con_has_urgent_child(con);
1964 con_update_parents_urgency(con);
1966 /* TODO: check if this container would swallow any other client and
1967 * don’t close it automatically. */
1968 int children = con_num_children(con);
1969 if (children == 0) {
1970 DLOG("Container empty, closing\n");
1971 tree_close_internal(con, DONT_KILL_WINDOW, false, false);
1977 * Determines the minimum size of the given con by looking at its children (for
1978 * split/stacked/tabbed cons). Will be called when resizing floating cons
1981 Rect con_minimum_size(Con *con) {
1982 DLOG("Determining minimum size for con %p\n", con);
1984 if (con_is_leaf(con)) {
1985 DLOG("leaf node, returning 75x50\n");
1986 return (Rect){0, 0, 75, 50};
1989 if (con->type == CT_FLOATING_CON) {
1990 DLOG("floating con\n");
1991 Con *child = TAILQ_FIRST(&(con->nodes_head));
1992 return con_minimum_size(child);
1995 if (con->layout == L_STACKED || con->layout == L_TABBED) {
1996 uint32_t max_width = 0, max_height = 0, deco_height = 0;
1998 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1999 Rect min = con_minimum_size(child);
2000 deco_height += child->deco_rect.height;
2001 max_width = max(max_width, min.width);
2002 max_height = max(max_height, min.height);
2004 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
2005 max_width, max_height, deco_height);
2006 return (Rect){0, 0, max_width, max_height + deco_height};
2009 /* For horizontal/vertical split containers we sum up the width (h-split)
2010 * or height (v-split) and use the maximum of the height (h-split) or width
2011 * (v-split) as minimum size. */
2012 if (con_is_split(con)) {
2013 uint32_t width = 0, height = 0;
2015 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2016 Rect min = con_minimum_size(child);
2017 if (con->layout == L_SPLITH) {
2019 height = max(height, min.height);
2021 height += min.height;
2022 width = max(width, min.width);
2025 DLOG("split container, returning width = %d x height = %d\n", width, height);
2026 return (Rect){0, 0, width, height};
2029 ELOG("Unhandled case, type = %d, layout = %d, split = %d\n",
2030 con->type, con->layout, con_is_split(con));
2035 * Returns true if changing the focus to con would be allowed considering
2036 * the fullscreen focus constraints. Specifically, if a fullscreen container or
2037 * any of its descendants is focused, this function returns true if and only if
2038 * focusing con would mean that focus would still be visible on screen, i.e.,
2039 * the newly focused container would not be obscured by a fullscreen container.
2041 * In the simplest case, if a fullscreen container or any of its descendants is
2042 * fullscreen, this functions returns true if con is the fullscreen container
2043 * itself or any of its descendants, as this means focus wouldn't escape the
2044 * boundaries of the fullscreen container.
2046 * In case the fullscreen container is of type CF_OUTPUT, this function returns
2047 * true if con is on a different workspace, as focus wouldn't be obscured by
2048 * the fullscreen container that is constrained to a different workspace.
2050 * Note that this same logic can be applied to moving containers. If a
2051 * container can be focused under the fullscreen focus constraints, it can also
2052 * become a parent or sibling to the currently focused container.
2055 bool con_fullscreen_permits_focusing(Con *con) {
2056 /* No focus, no problem. */
2060 /* Find the first fullscreen ascendent. */
2062 while (fs && fs->fullscreen_mode == CF_NONE)
2065 /* fs must be non-NULL since the workspace con doesn’t have CF_NONE and
2066 * there always has to be a workspace con in the hierarchy. */
2068 /* The most common case is we hit the workspace level. In this
2069 * situation, changing focus is also harmless. */
2070 assert(fs->fullscreen_mode != CF_NONE);
2071 if (fs->type == CT_WORKSPACE)
2074 /* Allow it if the container itself is the fullscreen container. */
2078 /* If fullscreen is per-output, the focus being in a different workspace is
2079 * sufficient to guarantee that change won't leave fullscreen in bad shape. */
2080 if (fs->fullscreen_mode == CF_OUTPUT &&
2081 con_get_workspace(con) != con_get_workspace(fs)) {
2085 /* Allow it only if the container to be focused is contained within the
2086 * current fullscreen container. */
2087 return con_has_parent(con, fs);
2092 * Checks if the given container has an urgent child.
2095 bool con_has_urgent_child(Con *con) {
2098 if (con_is_leaf(con))
2101 /* We are not interested in floating windows since they can only be
2102 * attached to a workspace → nodes_head instead of focus_head */
2103 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2104 if (con_has_urgent_child(child))
2112 * Make all parent containers urgent if con is urgent or clear the urgent flag
2113 * of all parent containers if there are no more urgent children left.
2116 void con_update_parents_urgency(Con *con) {
2117 Con *parent = con->parent;
2119 /* Urgency hints should not be set on any container higher up in the
2120 * hierarchy than the workspace level. Unfortunately, since the content
2121 * container has type == CT_CON, that’s not easy to verify in the loop
2122 * below, so we need another condition to catch that case: */
2123 if (con->type == CT_WORKSPACE)
2126 bool new_urgency_value = con->urgent;
2127 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
2128 if (new_urgency_value) {
2129 parent->urgent = true;
2131 /* We can only reset the urgency when the parent
2132 * has no other urgent children */
2133 if (!con_has_urgent_child(parent))
2134 parent->urgent = false;
2136 parent = parent->parent;
2141 * Set urgency flag to the container, all the parent containers and the workspace.
2144 void con_set_urgency(Con *con, bool urgent) {
2145 if (urgent && focused == con) {
2146 DLOG("Ignoring urgency flag for current client\n");
2150 const bool old_urgent = con->urgent;
2152 if (con->urgency_timer == NULL) {
2153 con->urgent = urgent;
2155 DLOG("Discarding urgency WM_HINT because timer is running\n");
2160 gettimeofday(&con->window->urgent, NULL);
2162 con->window->urgent.tv_sec = 0;
2163 con->window->urgent.tv_usec = 0;
2167 con_update_parents_urgency(con);
2170 /* Set the urgency flag on the workspace, if a workspace could be found
2171 * (for dock clients, that is not the case). */
2172 if ((ws = con_get_workspace(con)) != NULL)
2173 workspace_update_urgent_flag(ws);
2175 if (con->urgent != old_urgent) {
2176 LOG("Urgency flag changed to %d\n", con->urgent);
2177 ipc_send_window_event("urgent", con);
2182 * Create a string representing the subtree under con.
2185 char *con_get_tree_representation(Con *con) {
2186 /* this code works as follows:
2187 * 1) create a string with the layout type (D/V/H/T/S) and an opening bracket
2188 * 2) append the tree representation of the children to the string
2189 * 3) add closing bracket
2191 * The recursion ends when we hit a leaf, in which case we return the
2192 * class_instance of the contained window.
2195 /* end of recursion */
2196 if (con_is_leaf(con)) {
2198 return sstrdup("nowin");
2200 if (!con->window->class_instance)
2201 return sstrdup("noinstance");
2203 return sstrdup(con->window->class_instance);
2207 /* 1) add the Layout type to buf */
2208 if (con->layout == L_DEFAULT)
2209 buf = sstrdup("D[");
2210 else if (con->layout == L_SPLITV)
2211 buf = sstrdup("V[");
2212 else if (con->layout == L_SPLITH)
2213 buf = sstrdup("H[");
2214 else if (con->layout == L_TABBED)
2215 buf = sstrdup("T[");
2216 else if (con->layout == L_STACKED)
2217 buf = sstrdup("S[");
2219 ELOG("BUG: Code not updated to account for new layout type\n");
2223 /* 2) append representation of children */
2225 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2226 char *child_txt = con_get_tree_representation(child);
2229 sasprintf(&tmp_buf, "%s%s%s", buf,
2230 (TAILQ_FIRST(&(con->nodes_head)) == child ? "" : " "), child_txt);
2236 /* 3) close the brackets */
2238 sasprintf(&complete_buf, "%s]", buf);
2241 return complete_buf;
2245 * Returns the container's title considering the current title format.
2248 i3String *con_parse_title_format(Con *con) {
2249 assert(con->title_format != NULL);
2251 i3Window *win = con->window;
2253 /* We need to ensure that we only escape the window title if pango
2254 * is used by the current font. */
2255 const bool pango_markup = font_is_pango();
2261 title = pango_escape_markup(con_get_tree_representation(con));
2262 class = sstrdup("i3-frame");
2263 instance = sstrdup("i3-frame");
2265 title = pango_escape_markup(sstrdup((win->name == NULL) ? "" : i3string_as_utf8(win->name)));
2266 class = pango_escape_markup(sstrdup((win->class_class == NULL) ? "" : win->class_class));
2267 instance = pango_escape_markup(sstrdup((win->class_instance == NULL) ? "" : win->class_instance));
2270 placeholder_t placeholders[] = {
2271 {.name = "%title", .value = title},
2272 {.name = "%class", .value = class},
2273 {.name = "%instance", .value = instance}};
2274 const size_t num = sizeof(placeholders) / sizeof(placeholder_t);
2276 char *formatted_str = format_placeholders(con->title_format, &placeholders[0], num);
2277 i3String *formatted = i3string_from_utf8(formatted_str);
2278 i3string_set_markup(formatted, pango_markup);
2279 FREE(formatted_str);
2281 for (size_t i = 0; i < num; i++) {
2282 FREE(placeholders[i].value);
2289 * Swaps the two containers.
2292 bool con_swap(Con *first, Con *second) {
2293 assert(first != NULL);
2294 assert(second != NULL);
2295 DLOG("Swapping containers %p / %p\n", first, second);
2297 if (first->type != CT_CON) {
2298 ELOG("Only regular containers can be swapped, but found con = %p with type = %d.\n", first, first->type);
2302 if (second->type != CT_CON) {
2303 ELOG("Only regular containers can be swapped, but found con = %p with type = %d.\n", second, second->type);
2307 if (con_is_floating(first) || con_is_floating(second)) {
2308 ELOG("Floating windows cannot be swapped.\n");
2312 if (first == second) {
2313 DLOG("Swapping container %p with itself, nothing to do.\n", first);
2317 if (con_has_parent(first, second) || con_has_parent(second, first)) {
2318 ELOG("Cannot swap containers %p and %p because they are in a parent-child relationship.\n", first, second);
2322 Con *old_focus = focused;
2324 Con *first_ws = con_get_workspace(first);
2325 Con *second_ws = con_get_workspace(second);
2326 Con *current_ws = con_get_workspace(old_focus);
2327 const bool focused_within_first = (first == old_focus || con_has_parent(old_focus, first));
2328 const bool focused_within_second = (second == old_focus || con_has_parent(old_focus, second));
2329 fullscreen_mode_t first_fullscreen_mode = first->fullscreen_mode;
2330 fullscreen_mode_t second_fullscreen_mode = second->fullscreen_mode;
2332 if (first_fullscreen_mode != CF_NONE) {
2333 con_disable_fullscreen(first);
2335 if (second_fullscreen_mode != CF_NONE) {
2336 con_disable_fullscreen(second);
2339 double first_percent = first->percent;
2340 double second_percent = second->percent;
2342 /* De- and reattaching the containers will insert them at the tail of the
2343 * focus_heads. We will need to fix this. But we need to make sure first
2344 * and second don't get in each other's way if they share the same parent,
2345 * so we select the closest previous focus_head that isn't involved. */
2346 Con *first_prev_focus_head = first;
2347 while (first_prev_focus_head == first || first_prev_focus_head == second) {
2348 first_prev_focus_head = TAILQ_PREV(first_prev_focus_head, focus_head, focused);
2351 Con *second_prev_focus_head = second;
2352 while (second_prev_focus_head == second || second_prev_focus_head == first) {
2353 second_prev_focus_head = TAILQ_PREV(second_prev_focus_head, focus_head, focused);
2356 /* We use a fake container to mark the spot of where the second container needs to go. */
2357 Con *fake = con_new(NULL, NULL);
2358 fake->layout = L_SPLITH;
2359 _con_attach(fake, first->parent, first, true);
2362 /* Swap the containers. We set the ignore_focus flag here because after the
2363 * container is attached, the focus order is not yet correct and would
2364 * result in wrong windows being focused. */
2366 /* Move first to second. */
2367 result &= _con_move_to_con(first, second, false, false, false, true, false);
2369 /* If we moved the container holding the focused window to another
2370 * workspace we need to ensure the visible workspace has the focused
2372 * We don't need to check this for the second container because we've only
2373 * moved the first one at this point.*/
2374 if (first_ws != second_ws && focused_within_first) {
2375 con_activate(con_descend_focused(current_ws));
2378 /* Move second to where first has been originally. */
2379 result &= _con_move_to_con(second, fake, false, false, false, true, false);
2381 /* If swapping the containers didn't work we don't need to mess with the focus. */
2386 /* Swapping will have inserted the containers at the tail of their parents'
2387 * focus head. We fix this now by putting them in the position of the focus
2388 * head the container they swapped with was in. */
2389 TAILQ_REMOVE(&(first->parent->focus_head), first, focused);
2390 TAILQ_REMOVE(&(second->parent->focus_head), second, focused);
2392 if (second_prev_focus_head == NULL) {
2393 TAILQ_INSERT_HEAD(&(first->parent->focus_head), first, focused);
2395 TAILQ_INSERT_AFTER(&(first->parent->focus_head), second_prev_focus_head, first, focused);
2398 if (first_prev_focus_head == NULL) {
2399 TAILQ_INSERT_HEAD(&(second->parent->focus_head), second, focused);
2401 TAILQ_INSERT_AFTER(&(second->parent->focus_head), first_prev_focus_head, second, focused);
2404 /* If the focus was within any of the swapped containers, do the following:
2405 * - If swapping took place within a workspace, ensure the previously
2406 * focused container stays focused.
2407 * - Otherwise, focus the container that has been swapped in.
2409 * To understand why fixing the focus_head previously wasn't enough,
2410 * consider the scenario
2411 * H[ V[ A X ] V[ Y B ] ]
2412 * with B being focused, but X being the focus_head within its parent. If
2413 * we swap A and B now, fixing the focus_head would focus X, but since B
2414 * was the focused container before it should stay focused.
2416 if (focused_within_first) {
2417 if (first_ws == second_ws) {
2418 con_activate(old_focus);
2420 con_activate(con_descend_focused(second));
2422 } else if (focused_within_second) {
2423 if (first_ws == second_ws) {
2424 con_activate(old_focus);
2426 con_activate(con_descend_focused(first));
2430 /* We need to copy each other's percentages to ensure that the geometry
2431 * doesn't change during the swap. This needs to happen _before_ we close
2432 * the fake container as closing the tree will recalculate percentages. */
2433 first->percent = second_percent;
2434 second->percent = first_percent;
2435 fake->percent = 0.0;
2437 SWAP(first_fullscreen_mode, second_fullscreen_mode, fullscreen_mode_t);
2440 /* The two windows exchange their original fullscreen status */
2441 if (first_fullscreen_mode != CF_NONE) {
2442 con_enable_fullscreen(first, first_fullscreen_mode);
2444 if (second_fullscreen_mode != CF_NONE) {
2445 con_enable_fullscreen(second, second_fullscreen_mode);
2448 /* We don't actually need this since percentages-wise we haven't changed
2449 * anything, but we'll better be safe than sorry and just make sure as we'd
2450 * otherwise crash i3. */
2451 con_fix_percent(first->parent);
2452 con_fix_percent(second->parent);
2454 /* We can get rid of the fake container again now. */
2455 con_close(fake, DONT_KILL_WINDOW);
2457 con_force_split_parents_redraw(first);
2458 con_force_split_parents_redraw(second);