2 #define I3__FILE__ "con.c"
4 * vim:ts=4:sw=4:expandtab
6 * i3 - an improved dynamic tiling window manager
7 * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
9 * con.c: Functions which deal with containers directly (creating containers,
10 * searching containers, getting specific properties from containers,
15 #include "yajl_utils.h"
17 static void con_on_remove_child(Con *con);
20 * force parent split containers to be redrawn
23 void con_force_split_parents_redraw(Con *con) {
26 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
27 if (!con_is_leaf(parent))
28 FREE(parent->deco_render_params);
29 parent = parent->parent;
34 * Create a new container (and attach it to the given parent, if not NULL).
35 * This function only initializes the data structures.
38 Con *con_new_skeleton(Con *parent, i3Window *window) {
39 Con *new = scalloc(1, sizeof(Con));
40 new->on_remove_child = con_on_remove_child;
41 TAILQ_INSERT_TAIL(&all_cons, new, all_cons);
44 new->border_style = config.default_border;
45 new->current_border_width = -1;
47 new->depth = window->depth;
48 new->window->aspect_ratio = 0.0;
50 new->depth = root_depth;
52 DLOG("opening window\n");
54 TAILQ_INIT(&(new->floating_head));
55 TAILQ_INIT(&(new->nodes_head));
56 TAILQ_INIT(&(new->focus_head));
57 TAILQ_INIT(&(new->swallow_head));
58 TAILQ_INIT(&(new->marks_head));
61 con_attach(new, parent, false);
66 /* A wrapper for con_new_skeleton, to retain the old con_new behaviour
69 Con *con_new(Con *parent, i3Window *window) {
70 Con *new = con_new_skeleton(parent, window);
75 static void _con_attach(Con *con, Con *parent, Con *previous, bool ignore_focus) {
78 Con *current = previous;
79 struct nodes_head *nodes_head = &(parent->nodes_head);
80 struct focus_head *focus_head = &(parent->focus_head);
82 /* Workspaces are handled differently: they need to be inserted at the
84 if (con->type == CT_WORKSPACE) {
85 DLOG("it's a workspace. num = %d\n", con->num);
86 if (con->num == -1 || TAILQ_EMPTY(nodes_head)) {
87 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
89 current = TAILQ_FIRST(nodes_head);
90 if (con->num < current->num) {
91 /* we need to insert the container at the beginning */
92 TAILQ_INSERT_HEAD(nodes_head, con, nodes);
94 while (current->num != -1 && con->num > current->num) {
95 current = TAILQ_NEXT(current, nodes);
96 if (current == TAILQ_END(nodes_head)) {
101 /* we need to insert con after current, if current is not NULL */
103 TAILQ_INSERT_BEFORE(current, con, nodes);
105 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
108 goto add_to_focus_head;
111 if (con->type == CT_FLOATING_CON) {
112 DLOG("Inserting into floating containers\n");
113 TAILQ_INSERT_TAIL(&(parent->floating_head), con, floating_windows);
116 /* Get the first tiling container in focus stack */
117 TAILQ_FOREACH(loop, &(parent->focus_head), focused) {
118 if (loop->type == CT_FLOATING_CON)
125 /* When the container is not a split container (but contains a window)
126 * and is attached to a workspace, we check if the user configured a
127 * workspace_layout. This is done in workspace_attach_to, which will
128 * provide us with the container to which we should attach (either the
129 * workspace or a new split container with the configured
132 if (con->window != NULL &&
133 parent->type == CT_WORKSPACE &&
134 parent->workspace_layout != L_DEFAULT) {
135 DLOG("Parent is a workspace. Applying default layout...\n");
136 Con *target = workspace_attach_to(parent);
138 /* Attach the original con to this new split con instead */
139 nodes_head = &(target->nodes_head);
140 focus_head = &(target->focus_head);
141 con->parent = target;
147 /* Insert the container after the tiling container, if found.
148 * When adding to a CT_OUTPUT, just append one after another. */
149 if (current && parent->type != CT_OUTPUT) {
150 DLOG("Inserting con = %p after con %p\n", con, current);
151 TAILQ_INSERT_AFTER(nodes_head, current, con, nodes);
153 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
157 /* We insert to the TAIL because con_focus() will correct this.
158 * This way, we have the option to insert Cons without having
160 TAILQ_INSERT_TAIL(focus_head, con, focused);
161 con_force_split_parents_redraw(con);
165 * Attaches the given container to the given parent. This happens when moving
166 * a container or when inserting a new container at a specific place in the
169 * ignore_focus is to just insert the Con at the end (useful when creating a
170 * new split container *around* some containers, that is, detaching and
171 * attaching them in order without wanting to mess with the focus in between).
174 void con_attach(Con *con, Con *parent, bool ignore_focus) {
175 _con_attach(con, parent, NULL, ignore_focus);
179 * Detaches the given container from its current parent
182 void con_detach(Con *con) {
183 con_force_split_parents_redraw(con);
184 if (con->type == CT_FLOATING_CON) {
185 TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
186 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
188 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
189 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
194 * Sets input focus to the given container. Will be updated in X11 in the next
195 * run of x_push_changes().
198 void con_focus(Con *con) {
200 DLOG("con_focus = %p\n", con);
202 /* 1: set focused-pointer to the new con */
203 /* 2: exchange the position of the container in focus stack of the parent all the way up */
204 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
205 TAILQ_INSERT_HEAD(&(con->parent->focus_head), con, focused);
206 if (con->parent->parent != NULL)
207 con_focus(con->parent);
210 /* We can't blindly reset non-leaf containers since they might have
211 * other urgent children. Therefore we only reset leafs and propagate
212 * the changes upwards via con_update_parents_urgency() which does proper
213 * checks before resetting the urgency.
215 if (con->urgent && con_is_leaf(con)) {
216 con_set_urgency(con, false);
217 con_update_parents_urgency(con);
218 workspace_update_urgent_flag(con_get_workspace(con));
219 ipc_send_window_event("urgent", con);
224 * Closes the given container.
227 void con_close(Con *con, kill_window_t kill_window) {
229 DLOG("Closing con = %p.\n", con);
231 /* We never close output or root containers. */
232 if (con->type == CT_OUTPUT || con->type == CT_ROOT) {
233 DLOG("con = %p is of type %d, not closing anything.\n", con, con->type);
237 if (con->type == CT_WORKSPACE) {
238 DLOG("con = %p is a workspace, closing all children instead.\n", con);
239 Con *child, *nextchild;
240 for (child = TAILQ_FIRST(&(con->focus_head)); child;) {
241 nextchild = TAILQ_NEXT(child, focused);
242 DLOG("killing child = %p.\n", child);
243 tree_close_internal(child, kill_window, false, false);
250 tree_close_internal(con, kill_window, false, false);
254 * Returns true when this node is a leaf node (has no children)
257 bool con_is_leaf(Con *con) {
258 return TAILQ_EMPTY(&(con->nodes_head));
262 * Returns true when this con is a leaf node with a managed X11 window (e.g.,
263 * excluding dock containers)
265 bool con_has_managed_window(Con *con) {
266 return (con != NULL && con->window != NULL && con->window->id != XCB_WINDOW_NONE && con_get_workspace(con) != NULL);
270 * Returns true if this node has regular or floating children.
273 bool con_has_children(Con *con) {
274 return (!con_is_leaf(con) || !TAILQ_EMPTY(&(con->floating_head)));
278 * Returns true if a container should be considered split.
281 bool con_is_split(Con *con) {
282 if (con_is_leaf(con))
285 switch (con->layout) {
296 * This will only return true for containers which have some parent with
297 * a tabbed / stacked parent of which they are not the currently focused child.
300 bool con_is_hidden(Con *con) {
303 /* ascend to the workspace level and memorize the highest-up container
304 * which is stacked or tabbed. */
305 while (current != NULL && current->type != CT_WORKSPACE) {
306 Con *parent = current->parent;
307 if (parent != NULL && (parent->layout == L_TABBED || parent->layout == L_STACKED)) {
308 if (TAILQ_FIRST(&(parent->focus_head)) != current)
319 * Returns whether the container or any of its children is sticky.
322 bool con_is_sticky(Con *con) {
327 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
328 if (con_is_sticky(child))
336 * Returns true if this node accepts a window (if the node swallows windows,
337 * it might already have swallowed enough and cannot hold any more).
340 bool con_accepts_window(Con *con) {
341 /* 1: workspaces never accept direct windows */
342 if (con->type == CT_WORKSPACE)
345 if (con_is_split(con)) {
346 DLOG("container %p does not accept windows, it is a split container.\n", con);
350 /* TODO: if this is a swallowing container, we need to check its max_clients */
351 return (con->window == NULL);
355 * Gets the output container (first container with CT_OUTPUT in hierarchy) this
359 Con *con_get_output(Con *con) {
361 while (result != NULL && result->type != CT_OUTPUT)
362 result = result->parent;
363 /* We must be able to get an output because focus can never be set higher
364 * in the tree (root node cannot be focused). */
365 assert(result != NULL);
370 * Gets the workspace container this node is on.
373 Con *con_get_workspace(Con *con) {
375 while (result != NULL && result->type != CT_WORKSPACE)
376 result = result->parent;
381 * Searches parenst of the given 'con' until it reaches one with the specified
382 * 'orientation'. Aborts when it comes across a floating_con.
385 Con *con_parent_with_orientation(Con *con, orientation_t orientation) {
386 DLOG("Searching for parent of Con %p with orientation %d\n", con, orientation);
387 Con *parent = con->parent;
388 if (parent->type == CT_FLOATING_CON)
390 while (con_orientation(parent) != orientation) {
391 DLOG("Need to go one level further up\n");
392 parent = parent->parent;
393 /* Abort when we reach a floating con, or an output con */
395 (parent->type == CT_FLOATING_CON ||
396 parent->type == CT_OUTPUT ||
397 (parent->parent && parent->parent->type == CT_OUTPUT)))
402 DLOG("Result: %p\n", parent);
407 * helper data structure for the breadth-first-search in
408 * con_get_fullscreen_con()
414 TAILQ_ENTRY(bfs_entry) entries;
418 * Returns the first fullscreen node below this node.
421 Con *con_get_fullscreen_con(Con *con, fullscreen_mode_t fullscreen_mode) {
422 Con *current, *child;
424 /* TODO: is breadth-first-search really appropriate? (check as soon as
425 * fullscreen levels and fullscreen for containers is implemented) */
426 TAILQ_HEAD(bfs_head, bfs_entry) bfs_head = TAILQ_HEAD_INITIALIZER(bfs_head);
427 struct bfs_entry *entry = smalloc(sizeof(struct bfs_entry));
429 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
431 while (!TAILQ_EMPTY(&bfs_head)) {
432 entry = TAILQ_FIRST(&bfs_head);
433 current = entry->con;
434 if (current != con && current->fullscreen_mode == fullscreen_mode) {
435 /* empty the queue */
436 while (!TAILQ_EMPTY(&bfs_head)) {
437 entry = TAILQ_FIRST(&bfs_head);
438 TAILQ_REMOVE(&bfs_head, entry, entries);
444 TAILQ_REMOVE(&bfs_head, entry, entries);
447 TAILQ_FOREACH(child, &(current->nodes_head), nodes) {
448 entry = smalloc(sizeof(struct bfs_entry));
450 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
453 TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
454 entry = smalloc(sizeof(struct bfs_entry));
456 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
464 * Returns true if the container is internal, such as __i3_scratch
467 bool con_is_internal(Con *con) {
468 return (con->name[0] == '_' && con->name[1] == '_');
472 * Returns true if the node is floating.
475 bool con_is_floating(Con *con) {
477 DLOG("checking if con %p is floating\n", con);
478 return (con->floating >= FLOATING_AUTO_ON);
482 * Returns true if the container is a docked container.
485 bool con_is_docked(Con *con) {
486 if (con->parent == NULL)
489 if (con->parent->type == CT_DOCKAREA)
492 return con_is_docked(con->parent);
496 * Checks if the given container is either floating or inside some floating
497 * container. It returns the FLOATING_CON container.
500 Con *con_inside_floating(Con *con) {
502 if (con->type == CT_FLOATING_CON)
505 if (con->floating >= FLOATING_AUTO_ON)
508 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
511 return con_inside_floating(con->parent);
515 * Checks if the given container is inside a focused container.
518 bool con_inside_focused(Con *con) {
523 return con_inside_focused(con->parent);
527 * Returns the container with the given client window ID or NULL if no such
531 Con *con_by_window_id(xcb_window_t window) {
533 TAILQ_FOREACH(con, &all_cons, all_cons)
534 if (con->window != NULL && con->window->id == window)
540 * Returns the container with the given frame ID or NULL if no such container
544 Con *con_by_frame_id(xcb_window_t frame) {
546 TAILQ_FOREACH(con, &all_cons, all_cons)
547 if (con->frame.id == frame)
553 * Returns the container with the given mark or NULL if no such container
557 Con *con_by_mark(const char *mark) {
559 TAILQ_FOREACH(con, &all_cons, all_cons) {
560 if (con_has_mark(con, mark))
568 * Returns true if and only if the given containers holds the mark.
571 bool con_has_mark(Con *con, const char *mark) {
573 TAILQ_FOREACH(current, &(con->marks_head), marks) {
574 if (strcmp(current->name, mark) == 0)
582 * Toggles the mark on a container.
583 * If the container already has this mark, the mark is removed.
584 * Otherwise, the mark is assigned to the container.
587 void con_mark_toggle(Con *con, const char *mark, mark_mode_t mode) {
589 DLOG("Toggling mark \"%s\" on con = %p.\n", mark, con);
591 if (con_has_mark(con, mark)) {
592 con_unmark(con, mark);
594 con_mark(con, mark, mode);
599 * Assigns a mark to the container.
602 void con_mark(Con *con, const char *mark, mark_mode_t mode) {
604 DLOG("Setting mark \"%s\" on con = %p.\n", mark, con);
606 con_unmark(NULL, mark);
607 if (mode == MM_REPLACE) {
608 DLOG("Removing all existing marks on con = %p.\n", con);
611 while (!TAILQ_EMPTY(&(con->marks_head))) {
612 current = TAILQ_FIRST(&(con->marks_head));
613 con_unmark(con, current->name);
617 mark_t *new = scalloc(1, sizeof(mark_t));
618 new->name = sstrdup(mark);
619 TAILQ_INSERT_TAIL(&(con->marks_head), new, marks);
620 ipc_send_window_event("mark", con);
622 con->mark_changed = true;
626 * Removes marks from containers.
627 * If con is NULL, all containers are considered.
628 * If name is NULL, this removes all existing marks.
629 * Otherwise, it will only remove the given mark (if it is present).
632 void con_unmark(Con *con, const char *name) {
635 DLOG("Unmarking all containers.\n");
636 TAILQ_FOREACH(current, &all_cons, all_cons) {
637 if (con != NULL && current != con)
640 if (TAILQ_EMPTY(&(current->marks_head)))
644 while (!TAILQ_EMPTY(&(current->marks_head))) {
645 mark = TAILQ_FIRST(&(current->marks_head));
647 TAILQ_REMOVE(&(current->marks_head), mark, marks);
650 ipc_send_window_event("mark", current);
653 current->mark_changed = true;
656 DLOG("Removing mark \"%s\".\n", name);
657 current = (con == NULL) ? con_by_mark(name) : con;
658 if (current == NULL) {
659 DLOG("No container found with this mark, so there is nothing to do.\n");
663 DLOG("Found mark on con = %p. Removing it now.\n", current);
664 current->mark_changed = true;
667 TAILQ_FOREACH(mark, &(current->marks_head), marks) {
668 if (strcmp(mark->name, name) != 0)
672 TAILQ_REMOVE(&(current->marks_head), mark, marks);
675 ipc_send_window_event("mark", current);
682 * Returns the first container below 'con' which wants to swallow this window
686 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
689 //DLOG("searching con for window %p starting at con %p\n", window, con);
690 //DLOG("class == %s\n", window->class_class);
692 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
693 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
694 if (!match_matches_window(match, window))
696 if (store_match != NULL)
697 *store_match = match;
700 Con *result = con_for_window(child, window, store_match);
705 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
706 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
707 if (!match_matches_window(match, window))
709 if (store_match != NULL)
710 *store_match = match;
713 Con *result = con_for_window(child, window, store_match);
722 * Returns the number of children of this container.
725 int con_num_children(Con *con) {
729 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
736 * Returns the number of visible non-floating children of this container.
737 * For example, if the container contains a hsplit which has two children,
738 * this will return 2 instead of 1.
740 int con_num_visible_children(Con *con) {
746 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
747 /* Visible leaf nodes are a child. */
748 if (!con_is_hidden(current) && con_is_leaf(current))
750 /* All other containers need to be recursed. */
752 children += con_num_visible_children(current);
759 * Count the number of windows (i.e., leaf containers).
762 int con_num_windows(Con *con) {
766 if (con_has_managed_window(con))
771 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
772 num += con_num_windows(current);
779 * Updates the percent attribute of the children of the given container. This
780 * function needs to be called when a window is added or removed from a
784 void con_fix_percent(Con *con) {
786 int children = con_num_children(con);
788 // calculate how much we have distributed and how many containers
789 // with a percentage set we have
791 int children_with_percent = 0;
792 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
793 if (child->percent > 0.0) {
794 total += child->percent;
795 ++children_with_percent;
799 // if there were children without a percentage set, set to a value that
800 // will make those children proportional to all others
801 if (children_with_percent != children) {
802 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
803 if (child->percent <= 0.0) {
804 if (children_with_percent == 0)
805 total += (child->percent = 1.0);
807 total += (child->percent = total / children_with_percent);
812 // if we got a zero, just distribute the space equally, otherwise
813 // distribute according to the proportions we got
815 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
816 child->percent = 1.0 / children;
817 } else if (total != 1.0) {
818 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
819 child->percent /= total;
824 * Toggles fullscreen mode for the given container. If there already is a
825 * fullscreen container on this workspace, fullscreen will be disabled and then
826 * enabled for the container the user wants to have in fullscreen mode.
829 void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
830 if (con->type == CT_WORKSPACE) {
831 DLOG("You cannot make a workspace fullscreen.\n");
835 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
837 if (con->fullscreen_mode == CF_NONE)
838 con_enable_fullscreen(con, fullscreen_mode);
840 con_disable_fullscreen(con);
844 * Sets the specified fullscreen mode for the given container, sends the
845 * “fullscreen_mode” event and changes the XCB fullscreen property of the
846 * container’s window, if any.
849 static void con_set_fullscreen_mode(Con *con, fullscreen_mode_t fullscreen_mode) {
850 con->fullscreen_mode = fullscreen_mode;
852 DLOG("mode now: %d\n", con->fullscreen_mode);
854 /* Send an ipc window "fullscreen_mode" event */
855 ipc_send_window_event("fullscreen_mode", con);
857 /* update _NET_WM_STATE if this container has a window */
858 /* TODO: when a window is assigned to a container which is already
859 * fullscreened, this state needs to be pushed to the client, too */
860 if (con->window == NULL)
863 if (con->fullscreen_mode != CF_NONE) {
864 DLOG("Setting _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
865 xcb_add_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
867 DLOG("Removing _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
868 xcb_remove_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
873 * Enables fullscreen mode for the given container, if necessary.
875 * If the container’s mode is already CF_OUTPUT or CF_GLOBAL, the container is
876 * kept fullscreen but its mode is set to CF_GLOBAL and CF_OUTPUT,
879 * Other fullscreen containers will be disabled first, if they hide the new
883 void con_enable_fullscreen(Con *con, fullscreen_mode_t fullscreen_mode) {
884 if (con->type == CT_WORKSPACE) {
885 DLOG("You cannot make a workspace fullscreen.\n");
889 assert(fullscreen_mode == CF_GLOBAL || fullscreen_mode == CF_OUTPUT);
891 if (fullscreen_mode == CF_GLOBAL)
892 DLOG("enabling global fullscreen for %p / %s\n", con, con->name);
894 DLOG("enabling fullscreen for %p / %s\n", con, con->name);
896 if (con->fullscreen_mode == fullscreen_mode) {
897 DLOG("fullscreen already enabled for %p / %s\n", con, con->name);
901 Con *con_ws = con_get_workspace(con);
903 /* Disable any fullscreen container that would conflict the new one. */
904 Con *fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
905 if (fullscreen == NULL)
906 fullscreen = con_get_fullscreen_con(con_ws, CF_OUTPUT);
907 if (fullscreen != NULL)
908 con_disable_fullscreen(fullscreen);
910 /* Set focus to new fullscreen container. Unless in global fullscreen mode
911 * and on another workspace restore focus afterwards.
912 * Switch to the container’s workspace if mode is global. */
913 Con *cur_ws = con_get_workspace(focused);
914 Con *old_focused = focused;
915 if (fullscreen_mode == CF_GLOBAL && cur_ws != con_ws)
916 workspace_show(con_ws);
918 if (fullscreen_mode != CF_GLOBAL && cur_ws != con_ws)
919 con_focus(old_focused);
921 con_set_fullscreen_mode(con, fullscreen_mode);
925 * Disables fullscreen mode for the given container regardless of the mode, if
929 void con_disable_fullscreen(Con *con) {
930 if (con->type == CT_WORKSPACE) {
931 DLOG("You cannot make a workspace fullscreen.\n");
935 DLOG("disabling fullscreen for %p / %s\n", con, con->name);
937 if (con->fullscreen_mode == CF_NONE) {
938 DLOG("fullscreen already disabled for %p / %s\n", con, con->name);
942 con_set_fullscreen_mode(con, CF_NONE);
945 static bool _con_move_to_con(Con *con, Con *target, bool behind_focused, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
946 Con *orig_target = target;
948 /* Prevent moving if this would violate the fullscreen focus restrictions. */
949 Con *target_ws = con_get_workspace(target);
950 if (!con_fullscreen_permits_focusing(target_ws)) {
951 LOG("Cannot move out of a fullscreen container.\n");
955 if (con_is_floating(con)) {
956 DLOG("Container is floating, using parent instead.\n");
960 Con *source_ws = con_get_workspace(con);
962 if (con->type == CT_WORKSPACE) {
963 /* Re-parent all of the old workspace's floating windows. */
965 while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
966 child = TAILQ_FIRST(&(source_ws->floating_head));
967 con_move_to_workspace(child, target_ws, true, true, false);
970 /* If there are no non-floating children, ignore the workspace. */
971 if (con_is_leaf(con))
974 con = workspace_encapsulate(con);
976 ELOG("Workspace failed to move its contents into a container!\n");
981 /* Save the urgency state so that we can restore it. */
982 bool urgent = con->urgent;
984 /* Save the current workspace. So we can call workspace_show() by the end
985 * of this function. */
986 Con *current_ws = con_get_workspace(focused);
988 Con *source_output = con_get_output(con),
989 *dest_output = con_get_output(target_ws);
991 /* 1: save the container which is going to be focused after the current
992 * container is moved away */
993 Con *focus_next = con_next_focused(con);
995 /* 2: we go up one level, but only when target is a normal container */
996 if (target->type != CT_WORKSPACE) {
997 DLOG("target originally = %p / %s / type %d\n", target, target->name, target->type);
998 target = target->parent;
1001 /* 3: if the target container is floating, we get the workspace instead.
1002 * Only tiling windows need to get inserted next to the current container.
1004 Con *floatingcon = con_inside_floating(target);
1005 if (floatingcon != NULL) {
1006 DLOG("floatingcon, going up even further\n");
1007 target = floatingcon->parent;
1010 if (con->type == CT_FLOATING_CON) {
1011 Con *ws = con_get_workspace(target);
1012 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
1016 if (source_output != dest_output) {
1017 /* Take the relative coordinates of the current output, then add them
1018 * to the coordinate space of the correct output */
1019 if (fix_coordinates && con->type == CT_FLOATING_CON) {
1020 floating_fix_coordinates(con, &(source_output->rect), &(dest_output->rect));
1022 DLOG("Not fixing coordinates, fix_coordinates flag = %d\n", fix_coordinates);
1024 /* If moving to a visible workspace, call show so it can be considered
1025 * focused. Must do before attaching because workspace_show checks to see
1026 * if focused container is in its area. */
1027 if (!ignore_focus && workspace_is_visible(target_ws)) {
1028 workspace_show(target_ws);
1030 /* Don’t warp if told so (when dragging floating windows with the
1031 * mouse for example) */
1033 x_set_warp_to(NULL);
1035 x_set_warp_to(&(con->rect));
1039 /* If moving a fullscreen container and the destination already has a
1040 * fullscreen window on it, un-fullscreen the target's fullscreen con. */
1041 Con *fullscreen = con_get_fullscreen_con(target_ws, CF_OUTPUT);
1042 if (con->fullscreen_mode != CF_NONE && fullscreen != NULL) {
1043 con_toggle_fullscreen(fullscreen, CF_OUTPUT);
1047 DLOG("Re-attaching container to %p / %s\n", target, target->name);
1048 /* 4: re-attach the con to the parent of this focused container */
1049 Con *parent = con->parent;
1051 _con_attach(con, target, behind_focused ? NULL : orig_target, !behind_focused);
1053 /* 5: fix the percentages */
1054 con_fix_percent(parent);
1056 con_fix_percent(target);
1058 /* 6: focus the con on the target workspace, but only within that
1059 * workspace, that is, don’t move focus away if the target workspace is
1061 * We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
1062 * we don’t focus when there is a fullscreen con on that workspace. We
1063 * also don't do it if the caller requested to ignore focus. */
1064 if (!ignore_focus && !con_is_internal(target_ws) && !fullscreen) {
1065 /* We need to save the focused workspace on the output in case the
1066 * new workspace is hidden and it's necessary to immediately switch
1067 * back to the originally-focused workspace. */
1068 Con *old_focus = TAILQ_FIRST(&(output_get_content(dest_output)->focus_head));
1069 con_focus(con_descend_focused(con));
1071 /* Restore focus if the output's focused workspace has changed. */
1072 if (con_get_workspace(focused) != old_focus)
1073 con_focus(old_focus);
1076 /* 7: when moving to another workspace, we leave the focus on the current
1077 * workspace. (see also #809) */
1079 /* Descend focus stack in case focus_next is a workspace which can
1080 * occur if we move to the same workspace. Also show current workspace
1081 * to ensure it is focused. */
1083 workspace_show(current_ws);
1085 /* Set focus only if con was on current workspace before moving.
1086 * Otherwise we would give focus to some window on different workspace. */
1087 if (!ignore_focus && source_ws == current_ws)
1088 con_focus(con_descend_focused(focus_next));
1090 /* 8. If anything within the container is associated with a startup sequence,
1091 * delete it so child windows won't be created on the old workspace. */
1092 struct Startup_Sequence *sequence;
1093 xcb_get_property_cookie_t cookie;
1094 xcb_get_property_reply_t *startup_id_reply;
1096 if (!con_is_leaf(con)) {
1098 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1102 cookie = xcb_get_property(conn, false, child->window->id,
1103 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1104 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1106 sequence = startup_sequence_get(child->window, startup_id_reply, true);
1107 if (sequence != NULL)
1108 startup_sequence_delete(sequence);
1113 cookie = xcb_get_property(conn, false, con->window->id,
1114 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1115 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1117 sequence = startup_sequence_get(con->window, startup_id_reply, true);
1118 if (sequence != NULL)
1119 startup_sequence_delete(sequence);
1122 /* 9. If the container was marked urgent, move the urgency hint. */
1124 workspace_update_urgent_flag(source_ws);
1125 con_set_urgency(con, true);
1128 CALL(parent, on_remove_child);
1130 ipc_send_window_event("move", con);
1131 ewmh_update_wm_desktop();
1136 * Moves the given container to the given mark.
1139 bool con_move_to_mark(Con *con, const char *mark) {
1140 Con *target = con_by_mark(mark);
1141 if (target == NULL) {
1142 DLOG("found no container with mark \"%s\"\n", mark);
1146 /* For floating target containers, we just send the window to the same workspace. */
1147 if (con_is_floating(target)) {
1148 DLOG("target container is floating, moving container to target's workspace.\n");
1149 con_move_to_workspace(con, con_get_workspace(target), true, false, false);
1153 if (con->type == CT_WORKSPACE) {
1154 DLOG("target container is a workspace, simply moving the container there.\n");
1155 con_move_to_workspace(con, target, true, false, false);
1159 /* For split containers, we use the currently focused container within it.
1160 * This allows setting marks on, e.g., tabbed containers which will move
1161 * con to a new tab behind the focused tab. */
1162 if (con_is_split(target)) {
1163 DLOG("target is a split container, descending to the currently focused child.\n");
1164 target = TAILQ_FIRST(&(target->focus_head));
1167 if (con == target || con == target->parent) {
1168 DLOG("cannot move the container to or inside itself, aborting.\n");
1172 return _con_move_to_con(con, target, false, true, false, false);
1176 * Moves the given container to the currently focused container on the given
1179 * The fix_coordinates flag will translate the current coordinates (offset from
1180 * the monitor position basically) to appropriate coordinates on the
1181 * destination workspace.
1182 * Not enabling this behaviour comes in handy when this function gets called by
1183 * floating_maybe_reassign_ws, which will only "move" a floating window when it
1184 * *already* changed its coordinates to a different output.
1186 * The dont_warp flag disables pointer warping and will be set when this
1187 * function is called while dragging a floating window.
1189 * If ignore_focus is set, the container will be moved without modifying focus
1192 * TODO: is there a better place for this function?
1195 void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
1196 assert(workspace->type == CT_WORKSPACE);
1198 Con *source_ws = con_get_workspace(con);
1199 if (workspace == source_ws) {
1200 DLOG("Not moving, already there\n");
1204 Con *target = con_descend_focused(workspace);
1205 _con_move_to_con(con, target, true, fix_coordinates, dont_warp, ignore_focus);
1209 * Moves the given container to the currently focused container on the
1210 * visible workspace on the given output.
1213 void con_move_to_output(Con *con, Output *output) {
1215 GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1217 DLOG("Moving con %p to output %s\n", con, output->name);
1218 con_move_to_workspace(con, ws, false, false, false);
1222 * Returns the orientation of the given container (for stacked containers,
1223 * vertical orientation is used regardless of the actual orientation of the
1227 orientation_t con_orientation(Con *con) {
1228 switch (con->layout) {
1230 /* stacking containers behave like they are in vertical orientation */
1235 /* tabbed containers behave like they are in vertical orientation */
1240 DLOG("Someone called con_orientation() on a con with L_DEFAULT, this is a bug in the code.\n");
1246 DLOG("con_orientation() called on dockarea/output (%d) container %p\n", con->layout, con);
1251 DLOG("con_orientation() ran into default\n");
1257 * Returns the container which will be focused next when the given container
1258 * is not available anymore. Called in tree_close_internal and con_move_to_workspace
1259 * to properly restore focus.
1262 Con *con_next_focused(Con *con) {
1264 /* floating containers are attached to a workspace, so we focus either the
1265 * next floating container (if any) or the workspace itself. */
1266 if (con->type == CT_FLOATING_CON) {
1267 DLOG("selecting next for CT_FLOATING_CON\n");
1268 next = TAILQ_NEXT(con, floating_windows);
1269 DLOG("next = %p\n", next);
1271 next = TAILQ_PREV(con, floating_head, floating_windows);
1272 DLOG("using prev, next = %p\n", next);
1275 Con *ws = con_get_workspace(con);
1277 DLOG("no more floating containers for next = %p, restoring workspace focus\n", next);
1278 while (next != TAILQ_END(&(ws->focus_head)) && !TAILQ_EMPTY(&(next->focus_head))) {
1279 next = TAILQ_FIRST(&(next->focus_head));
1281 DLOG("skipping container itself, we want the next client\n");
1282 next = TAILQ_NEXT(next, focused);
1285 if (next == TAILQ_END(&(ws->focus_head))) {
1286 DLOG("Focus list empty, returning ws\n");
1290 /* Instead of returning the next CT_FLOATING_CON, we descend it to
1291 * get an actual window to focus. */
1292 next = con_descend_focused(next);
1297 /* dock clients cannot be focused, so we focus the workspace instead */
1298 if (con->parent->type == CT_DOCKAREA) {
1299 DLOG("selecting workspace for dock client\n");
1300 return con_descend_focused(output_get_content(con->parent->parent));
1303 /* if 'con' is not the first entry in the focus stack, use the first one as
1304 * it’s currently focused already */
1305 Con *first = TAILQ_FIRST(&(con->parent->focus_head));
1307 DLOG("Using first entry %p\n", first);
1310 /* try to focus the next container on the same level as this one or fall
1311 * back to its parent */
1312 if (!(next = TAILQ_NEXT(con, focused)))
1316 /* now go down the focus stack as far as
1317 * possible, excluding the current container */
1318 while (!TAILQ_EMPTY(&(next->focus_head)) &&
1319 TAILQ_FIRST(&(next->focus_head)) != con)
1320 next = TAILQ_FIRST(&(next->focus_head));
1326 * Get the next/previous container in the specified orientation. This may
1327 * travel up until it finds a container with suitable orientation.
1330 Con *con_get_next(Con *con, char way, orientation_t orientation) {
1331 DLOG("con_get_next(way=%c, orientation=%d)\n", way, orientation);
1332 /* 1: get the first parent with the same orientation */
1334 while (con_orientation(cur->parent) != orientation) {
1335 DLOG("need to go one level further up\n");
1336 if (cur->parent->type == CT_WORKSPACE) {
1337 LOG("that's a workspace, we can't go further up\n");
1343 /* 2: chose next (or previous) */
1346 next = TAILQ_NEXT(cur, nodes);
1347 /* if we are at the end of the list, we need to wrap */
1348 if (next == TAILQ_END(&(parent->nodes_head)))
1351 next = TAILQ_PREV(cur, nodes_head, nodes);
1352 /* if we are at the end of the list, we need to wrap */
1353 if (next == TAILQ_END(&(cur->nodes_head)))
1356 DLOG("next = %p\n", next);
1362 * Returns the focused con inside this client, descending the tree as far as
1363 * possible. This comes in handy when attaching a con to a workspace at the
1364 * currently focused position, for example.
1367 Con *con_descend_focused(Con *con) {
1369 while (next != focused && !TAILQ_EMPTY(&(next->focus_head)))
1370 next = TAILQ_FIRST(&(next->focus_head));
1375 * Returns the focused con inside this client, descending the tree as far as
1376 * possible. This comes in handy when attaching a con to a workspace at the
1377 * currently focused position, for example.
1379 * Works like con_descend_focused but considers only tiling cons.
1382 Con *con_descend_tiling_focused(Con *con) {
1386 if (next == focused)
1390 TAILQ_FOREACH(child, &(next->focus_head), focused) {
1391 if (child->type == CT_FLOATING_CON)
1397 } while (before != next && next != focused);
1402 * Returns the leftmost, rightmost, etc. container in sub-tree. For example, if
1403 * direction is D_LEFT, then we return the rightmost container and if direction
1404 * is D_RIGHT, we return the leftmost container. This is because if we are
1405 * moving D_LEFT, and thus want the rightmost container.
1408 Con *con_descend_direction(Con *con, direction_t direction) {
1411 int orientation = con_orientation(con);
1412 DLOG("con_descend_direction(%p, orientation %d, direction %d)\n", con, orientation, direction);
1413 if (direction == D_LEFT || direction == D_RIGHT) {
1414 if (orientation == HORIZ) {
1415 /* If the direction is horizontal, we can use either the first
1416 * (D_RIGHT) or the last con (D_LEFT) */
1417 if (direction == D_RIGHT)
1418 most = TAILQ_FIRST(&(con->nodes_head));
1420 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1421 } else if (orientation == VERT) {
1422 /* Wrong orientation. We use the last focused con. Within that con,
1423 * we recurse to chose the left/right con or at least the last
1425 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1426 if (current->type != CT_FLOATING_CON) {
1432 /* If the con has no orientation set, it’s not a split container
1433 * but a container with a client window, so stop recursing */
1438 if (direction == D_UP || direction == D_DOWN) {
1439 if (orientation == VERT) {
1440 /* If the direction is vertical, we can use either the first
1441 * (D_DOWN) or the last con (D_UP) */
1442 if (direction == D_UP)
1443 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1445 most = TAILQ_FIRST(&(con->nodes_head));
1446 } else if (orientation == HORIZ) {
1447 /* Wrong orientation. We use the last focused con. Within that con,
1448 * we recurse to chose the top/bottom con or at least the last
1450 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1451 if (current->type != CT_FLOATING_CON) {
1457 /* If the con has no orientation set, it’s not a split container
1458 * but a container with a client window, so stop recursing */
1465 return con_descend_direction(most, direction);
1469 * Returns a "relative" Rect which contains the amount of pixels that need to
1470 * be added to the original Rect to get the final position (obviously the
1471 * amount of pixels for normal, 1pixel and borderless are different).
1474 Rect con_border_style_rect(Con *con) {
1475 if (config.hide_edge_borders == HEBM_SMART && con_num_visible_children(con_get_workspace(con)) <= 1) {
1476 if (!con_is_floating(con)) {
1477 return (Rect){0, 0, 0, 0};
1481 adjacent_t borders_to_hide = ADJ_NONE;
1482 int border_width = con->current_border_width;
1483 DLOG("The border width for con is set to: %d\n", con->current_border_width);
1485 if (con->current_border_width < 0) {
1486 if (con_is_floating(con)) {
1487 border_width = config.default_floating_border_width;
1489 border_width = config.default_border_width;
1492 DLOG("Effective border width is set to: %d\n", border_width);
1493 /* Shortcut to avoid calling con_adjacent_borders() on dock containers. */
1494 int border_style = con_border_style(con);
1495 if (border_style == BS_NONE)
1496 return (Rect){0, 0, 0, 0};
1497 if (border_style == BS_NORMAL) {
1498 result = (Rect){border_width, 0, -(2 * border_width), -(border_width)};
1500 result = (Rect){border_width, border_width, -(2 * border_width), -(2 * border_width)};
1503 borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
1504 if (borders_to_hide & ADJ_LEFT_SCREEN_EDGE) {
1505 result.x -= border_width;
1506 result.width += border_width;
1508 if (borders_to_hide & ADJ_RIGHT_SCREEN_EDGE) {
1509 result.width += border_width;
1511 if (borders_to_hide & ADJ_UPPER_SCREEN_EDGE && (border_style != BS_NORMAL)) {
1512 result.y -= border_width;
1513 result.height += border_width;
1515 if (borders_to_hide & ADJ_LOWER_SCREEN_EDGE) {
1516 result.height += border_width;
1522 * Returns adjacent borders of the window. We need this if hide_edge_borders is
1525 adjacent_t con_adjacent_borders(Con *con) {
1526 adjacent_t result = ADJ_NONE;
1527 /* Floating windows are never adjacent to any other window, so
1528 don’t hide their border(s). This prevents bug #998. */
1529 if (con_is_floating(con))
1532 Con *workspace = con_get_workspace(con);
1533 if (con->rect.x == workspace->rect.x)
1534 result |= ADJ_LEFT_SCREEN_EDGE;
1535 if (con->rect.x + con->rect.width == workspace->rect.x + workspace->rect.width)
1536 result |= ADJ_RIGHT_SCREEN_EDGE;
1537 if (con->rect.y == workspace->rect.y)
1538 result |= ADJ_UPPER_SCREEN_EDGE;
1539 if (con->rect.y + con->rect.height == workspace->rect.y + workspace->rect.height)
1540 result |= ADJ_LOWER_SCREEN_EDGE;
1545 * Use this function to get a container’s border style. This is important
1546 * because when inside a stack, the border style is always BS_NORMAL.
1547 * For tabbed mode, the same applies, with one exception: when the container is
1548 * borderless and the only element in the tabbed container, the border is not
1551 * For children of a CT_DOCKAREA, the border style is always none.
1554 int con_border_style(Con *con) {
1555 Con *fs = con_get_fullscreen_con(con->parent, CF_OUTPUT);
1557 DLOG("this one is fullscreen! overriding BS_NONE\n");
1561 if (con->parent->layout == L_STACKED)
1562 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1564 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
1565 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1567 if (con->parent->type == CT_DOCKAREA)
1570 return con->border_style;
1574 * Sets the given border style on con, correctly keeping the position/size of a
1578 void con_set_border_style(Con *con, int border_style, int border_width) {
1579 /* Handle the simple case: non-floating containerns */
1580 if (!con_is_floating(con)) {
1581 con->border_style = border_style;
1582 con->current_border_width = border_width;
1586 /* For floating containers, we want to keep the position/size of the
1587 * *window* itself. We first add the border pixels to con->rect to make
1588 * con->rect represent the absolute position of the window (same for
1589 * parent). Then, we change the border style and subtract the new border
1590 * pixels. For the parent, we do the same also for the decoration. */
1591 DLOG("This is a floating container\n");
1593 Con *parent = con->parent;
1594 Rect bsr = con_border_style_rect(con);
1595 int deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1597 con->rect = rect_add(con->rect, bsr);
1598 parent->rect = rect_add(parent->rect, bsr);
1599 parent->rect.y += deco_height;
1600 parent->rect.height -= deco_height;
1602 /* Change the border style, get new border/decoration values. */
1603 con->border_style = border_style;
1604 con->current_border_width = border_width;
1605 bsr = con_border_style_rect(con);
1606 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1608 con->rect = rect_sub(con->rect, bsr);
1609 parent->rect = rect_sub(parent->rect, bsr);
1610 parent->rect.y -= deco_height;
1611 parent->rect.height += deco_height;
1615 * This function changes the layout of a given container. Use it to handle
1616 * special cases like changing a whole workspace to stacked/tabbed (creates a
1617 * new split container before).
1620 void con_set_layout(Con *con, layout_t layout) {
1621 DLOG("con_set_layout(%p, %d), con->type = %d\n",
1622 con, layout, con->type);
1624 /* Users can focus workspaces, but not any higher in the hierarchy.
1625 * Focus on the workspace is a special case, since in every other case, the
1626 * user means "change the layout of the parent split container". */
1627 if (con->type != CT_WORKSPACE)
1630 /* We fill in last_split_layout when switching to a different layout
1631 * since there are many places in the code that don’t use
1632 * con_set_layout(). */
1633 if (con->layout == L_SPLITH || con->layout == L_SPLITV)
1634 con->last_split_layout = con->layout;
1636 /* When the container type is CT_WORKSPACE, the user wants to change the
1637 * whole workspace into stacked/tabbed mode. To do this and still allow
1638 * intuitive operations (like level-up and then opening a new window), we
1639 * need to create a new split container. */
1640 if (con->type == CT_WORKSPACE &&
1641 (layout == L_STACKED || layout == L_TABBED)) {
1642 if (con_num_children(con) == 0) {
1643 DLOG("Setting workspace_layout to %d\n", layout);
1644 con->workspace_layout = layout;
1646 DLOG("Creating new split container\n");
1647 /* 1: create a new split container */
1648 Con *new = con_new(NULL, NULL);
1651 /* 2: Set the requested layout on the split container and mark it as
1653 new->layout = layout;
1654 new->last_split_layout = con->last_split_layout;
1656 /* Save the container that was focused before we move containers
1657 * around, but only if the container is visible (otherwise focus
1658 * will be restored properly automatically when switching). */
1659 Con *old_focused = TAILQ_FIRST(&(con->focus_head));
1660 if (old_focused == TAILQ_END(&(con->focus_head)))
1662 if (old_focused != NULL &&
1663 !workspace_is_visible(con_get_workspace(old_focused)))
1666 /* 3: move the existing cons of this workspace below the new con */
1667 DLOG("Moving cons\n");
1669 while (!TAILQ_EMPTY(&(con->nodes_head))) {
1670 child = TAILQ_FIRST(&(con->nodes_head));
1672 con_attach(child, new, true);
1675 /* 4: attach the new split container to the workspace */
1676 DLOG("Attaching new split to ws\n");
1677 con_attach(new, con, false);
1680 con_focus(old_focused);
1682 tree_flatten(croot);
1684 con_force_split_parents_redraw(con);
1688 if (layout == L_DEFAULT) {
1689 /* Special case: the layout formerly known as "default" (in combination
1690 * with an orientation). Since we switched to splith/splitv layouts,
1691 * using the "default" layout (which "only" should happen when using
1692 * legacy configs) is using the last split layout (either splith or
1693 * splitv) in order to still do the same thing. */
1694 con->layout = con->last_split_layout;
1695 /* In case last_split_layout was not initialized… */
1696 if (con->layout == L_DEFAULT)
1697 con->layout = L_SPLITH;
1699 con->layout = layout;
1701 con_force_split_parents_redraw(con);
1705 * This function toggles the layout of a given container. toggle_mode can be
1706 * either 'default' (toggle only between stacked/tabbed/last_split_layout),
1707 * 'split' (toggle only between splitv/splith) or 'all' (toggle between all
1711 void con_toggle_layout(Con *con, const char *toggle_mode) {
1713 /* Users can focus workspaces, but not any higher in the hierarchy.
1714 * Focus on the workspace is a special case, since in every other case, the
1715 * user means "change the layout of the parent split container". */
1716 if (con->type != CT_WORKSPACE)
1717 parent = con->parent;
1718 DLOG("con_toggle_layout(%p, %s), parent = %p\n", con, toggle_mode, parent);
1720 if (strcmp(toggle_mode, "split") == 0) {
1721 /* Toggle between splits. When the current layout is not a split
1722 * layout, we just switch back to last_split_layout. Otherwise, we
1723 * change to the opposite split layout. */
1724 if (parent->layout != L_SPLITH && parent->layout != L_SPLITV)
1725 con_set_layout(con, parent->last_split_layout);
1727 if (parent->layout == L_SPLITH)
1728 con_set_layout(con, L_SPLITV);
1730 con_set_layout(con, L_SPLITH);
1733 if (parent->layout == L_STACKED)
1734 con_set_layout(con, L_TABBED);
1735 else if (parent->layout == L_TABBED) {
1736 if (strcmp(toggle_mode, "all") == 0)
1737 con_set_layout(con, L_SPLITH);
1739 con_set_layout(con, parent->last_split_layout);
1740 } else if (parent->layout == L_SPLITH || parent->layout == L_SPLITV) {
1741 if (strcmp(toggle_mode, "all") == 0) {
1742 /* When toggling through all modes, we toggle between
1743 * splith/splitv, whereas normally we just directly jump to
1745 if (parent->layout == L_SPLITH)
1746 con_set_layout(con, L_SPLITV);
1748 con_set_layout(con, L_STACKED);
1750 con_set_layout(con, L_STACKED);
1757 * Callback which will be called when removing a child from the given con.
1758 * Kills the container if it is empty and replaces it with the child if there
1759 * is exactly one child.
1762 static void con_on_remove_child(Con *con) {
1763 DLOG("on_remove_child\n");
1765 /* Every container 'above' (in the hierarchy) the workspace content should
1766 * not be closed when the last child was removed */
1767 if (con->type == CT_OUTPUT ||
1768 con->type == CT_ROOT ||
1769 con->type == CT_DOCKAREA ||
1770 (con->parent != NULL && con->parent->type == CT_OUTPUT)) {
1771 DLOG("not handling, type = %d, name = %s\n", con->type, con->name);
1775 /* For workspaces, close them only if they're not visible anymore */
1776 if (con->type == CT_WORKSPACE) {
1777 if (TAILQ_EMPTY(&(con->focus_head)) && !workspace_is_visible(con)) {
1778 LOG("Closing old workspace (%p / %s), it is empty\n", con, con->name);
1779 yajl_gen gen = ipc_marshal_workspace_event("empty", con, NULL);
1780 tree_close_internal(con, DONT_KILL_WINDOW, false, false);
1782 const unsigned char *payload;
1784 y(get_buf, &payload, &length);
1785 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, (const char *)payload);
1792 con_force_split_parents_redraw(con);
1793 con->urgent = con_has_urgent_child(con);
1794 con_update_parents_urgency(con);
1796 /* TODO: check if this container would swallow any other client and
1797 * don’t close it automatically. */
1798 int children = con_num_children(con);
1799 if (children == 0) {
1800 DLOG("Container empty, closing\n");
1801 tree_close_internal(con, DONT_KILL_WINDOW, false, false);
1807 * Determines the minimum size of the given con by looking at its children (for
1808 * split/stacked/tabbed cons). Will be called when resizing floating cons
1811 Rect con_minimum_size(Con *con) {
1812 DLOG("Determining minimum size for con %p\n", con);
1814 if (con_is_leaf(con)) {
1815 DLOG("leaf node, returning 75x50\n");
1816 return (Rect){0, 0, 75, 50};
1819 if (con->type == CT_FLOATING_CON) {
1820 DLOG("floating con\n");
1821 Con *child = TAILQ_FIRST(&(con->nodes_head));
1822 return con_minimum_size(child);
1825 if (con->layout == L_STACKED || con->layout == L_TABBED) {
1826 uint32_t max_width = 0, max_height = 0, deco_height = 0;
1828 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1829 Rect min = con_minimum_size(child);
1830 deco_height += child->deco_rect.height;
1831 max_width = max(max_width, min.width);
1832 max_height = max(max_height, min.height);
1834 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
1835 max_width, max_height, deco_height);
1836 return (Rect){0, 0, max_width, max_height + deco_height};
1839 /* For horizontal/vertical split containers we sum up the width (h-split)
1840 * or height (v-split) and use the maximum of the height (h-split) or width
1841 * (v-split) as minimum size. */
1842 if (con_is_split(con)) {
1843 uint32_t width = 0, height = 0;
1845 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1846 Rect min = con_minimum_size(child);
1847 if (con->layout == L_SPLITH) {
1849 height = max(height, min.height);
1851 height += min.height;
1852 width = max(width, min.width);
1855 DLOG("split container, returning width = %d x height = %d\n", width, height);
1856 return (Rect){0, 0, width, height};
1859 ELOG("Unhandled case, type = %d, layout = %d, split = %d\n",
1860 con->type, con->layout, con_is_split(con));
1865 * Returns true if changing the focus to con would be allowed considering
1866 * the fullscreen focus constraints. Specifically, if a fullscreen container or
1867 * any of its descendants is focused, this function returns true if and only if
1868 * focusing con would mean that focus would still be visible on screen, i.e.,
1869 * the newly focused container would not be obscured by a fullscreen container.
1871 * In the simplest case, if a fullscreen container or any of its descendants is
1872 * fullscreen, this functions returns true if con is the fullscreen container
1873 * itself or any of its descendants, as this means focus wouldn't escape the
1874 * boundaries of the fullscreen container.
1876 * In case the fullscreen container is of type CF_OUTPUT, this function returns
1877 * true if con is on a different workspace, as focus wouldn't be obscured by
1878 * the fullscreen container that is constrained to a different workspace.
1880 * Note that this same logic can be applied to moving containers. If a
1881 * container can be focused under the fullscreen focus constraints, it can also
1882 * become a parent or sibling to the currently focused container.
1885 bool con_fullscreen_permits_focusing(Con *con) {
1886 /* No focus, no problem. */
1890 /* Find the first fullscreen ascendent. */
1892 while (fs && fs->fullscreen_mode == CF_NONE)
1895 /* fs must be non-NULL since the workspace con doesn’t have CF_NONE and
1896 * there always has to be a workspace con in the hierarchy. */
1898 /* The most common case is we hit the workspace level. In this
1899 * situation, changing focus is also harmless. */
1900 assert(fs->fullscreen_mode != CF_NONE);
1901 if (fs->type == CT_WORKSPACE)
1904 /* Allow it if the container itself is the fullscreen container. */
1908 /* If fullscreen is per-output, the focus being in a different workspace is
1909 * sufficient to guarantee that change won't leave fullscreen in bad shape. */
1910 if (fs->fullscreen_mode == CF_OUTPUT &&
1911 con_get_workspace(con) != con_get_workspace(fs)) {
1915 /* Allow it only if the container to be focused is contained within the
1916 * current fullscreen container. */
1918 if (con->parent == fs)
1923 /* Focusing con would hide it behind a fullscreen window, disallow it. */
1929 * Checks if the given container has an urgent child.
1932 bool con_has_urgent_child(Con *con) {
1935 if (con_is_leaf(con))
1938 /* We are not interested in floating windows since they can only be
1939 * attached to a workspace → nodes_head instead of focus_head */
1940 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1941 if (con_has_urgent_child(child))
1949 * Make all parent containers urgent if con is urgent or clear the urgent flag
1950 * of all parent containers if there are no more urgent children left.
1953 void con_update_parents_urgency(Con *con) {
1954 Con *parent = con->parent;
1956 /* Urgency hints should not be set on any container higher up in the
1957 * hierarchy than the workspace level. Unfortunately, since the content
1958 * container has type == CT_CON, that’s not easy to verify in the loop
1959 * below, so we need another condition to catch that case: */
1960 if (con->type == CT_WORKSPACE)
1963 bool new_urgency_value = con->urgent;
1964 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
1965 if (new_urgency_value) {
1966 parent->urgent = true;
1968 /* We can only reset the urgency when the parent
1969 * has no other urgent children */
1970 if (!con_has_urgent_child(parent))
1971 parent->urgent = false;
1973 parent = parent->parent;
1978 * Set urgency flag to the container, all the parent containers and the workspace.
1981 void con_set_urgency(Con *con, bool urgent) {
1982 if (urgent && focused == con) {
1983 DLOG("Ignoring urgency flag for current client\n");
1987 const bool old_urgent = con->urgent;
1989 if (con->urgency_timer == NULL) {
1990 con->urgent = urgent;
1992 DLOG("Discarding urgency WM_HINT because timer is running\n");
1997 gettimeofday(&con->window->urgent, NULL);
1999 con->window->urgent.tv_sec = 0;
2000 con->window->urgent.tv_usec = 0;
2004 con_update_parents_urgency(con);
2007 /* Set the urgency flag on the workspace, if a workspace could be found
2008 * (for dock clients, that is not the case). */
2009 if ((ws = con_get_workspace(con)) != NULL)
2010 workspace_update_urgent_flag(ws);
2012 if (con->urgent != old_urgent) {
2013 LOG("Urgency flag changed to %d\n", con->urgent);
2014 ipc_send_window_event("urgent", con);
2019 * Create a string representing the subtree under con.
2022 char *con_get_tree_representation(Con *con) {
2023 /* this code works as follows:
2024 * 1) create a string with the layout type (D/V/H/T/S) and an opening bracket
2025 * 2) append the tree representation of the children to the string
2026 * 3) add closing bracket
2028 * The recursion ends when we hit a leaf, in which case we return the
2029 * class_instance of the contained window.
2032 /* end of recursion */
2033 if (con_is_leaf(con)) {
2035 return sstrdup("nowin");
2037 if (!con->window->class_instance)
2038 return sstrdup("noinstance");
2040 return sstrdup(con->window->class_instance);
2044 /* 1) add the Layout type to buf */
2045 if (con->layout == L_DEFAULT)
2046 buf = sstrdup("D[");
2047 else if (con->layout == L_SPLITV)
2048 buf = sstrdup("V[");
2049 else if (con->layout == L_SPLITH)
2050 buf = sstrdup("H[");
2051 else if (con->layout == L_TABBED)
2052 buf = sstrdup("T[");
2053 else if (con->layout == L_STACKED)
2054 buf = sstrdup("S[");
2056 ELOG("BUG: Code not updated to account for new layout type\n");
2060 /* 2) append representation of children */
2062 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2063 char *child_txt = con_get_tree_representation(child);
2066 sasprintf(&tmp_buf, "%s%s%s", buf,
2067 (TAILQ_FIRST(&(con->nodes_head)) == child ? "" : " "), child_txt);
2073 /* 3) close the brackets */
2075 sasprintf(&complete_buf, "%s]", buf);
2078 return complete_buf;
2082 * Returns the container's title considering the current title format.
2085 i3String *con_parse_title_format(Con *con) {
2086 assert(con->title_format != NULL);
2088 i3Window *win = con->window;
2090 /* We need to ensure that we only escape the window title if pango
2091 * is used by the current font. */
2092 const bool pango_markup = font_is_pango();
2098 title = pango_escape_markup(con_get_tree_representation(con));
2099 class = sstrdup("i3-frame");
2100 instance = sstrdup("i3-frame");
2102 title = pango_escape_markup(sstrdup((win->name == NULL) ? "" : i3string_as_utf8(win->name)));
2103 class = pango_escape_markup(sstrdup((win->class_class == NULL) ? "" : win->class_class));
2104 instance = pango_escape_markup(sstrdup((win->class_instance == NULL) ? "" : win->class_instance));
2107 placeholder_t placeholders[] = {
2108 {.name = "%title", .value = title},
2109 {.name = "%class", .value = class},
2110 {.name = "%instance", .value = instance}};
2111 const size_t num = sizeof(placeholders) / sizeof(placeholder_t);
2113 char *formatted_str = format_placeholders(con->title_format, &placeholders[0], num);
2114 i3String *formatted = i3string_from_utf8(formatted_str);
2115 i3string_set_markup(formatted, pango_markup);
2116 FREE(formatted_str);
2118 for (size_t i = 0; i < num; i++) {
2119 FREE(placeholders[i].value);