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 && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
26 if (!con_is_leaf(parent))
27 FREE(parent->deco_render_params);
28 parent = parent->parent;
33 * Create a new container (and attach it to the given parent, if not NULL).
34 * This function only initializes the data structures.
37 Con *con_new_skeleton(Con *parent, i3Window *window) {
38 Con *new = scalloc(1, sizeof(Con));
39 new->on_remove_child = con_on_remove_child;
40 TAILQ_INSERT_TAIL(&all_cons, new, all_cons);
43 new->border_style = config.default_border;
44 new->current_border_width = -1;
46 new->depth = window->depth;
47 new->window->aspect_ratio = 0.0;
49 new->depth = root_depth;
51 DLOG("opening window\n");
53 TAILQ_INIT(&(new->floating_head));
54 TAILQ_INIT(&(new->nodes_head));
55 TAILQ_INIT(&(new->focus_head));
56 TAILQ_INIT(&(new->swallow_head));
57 TAILQ_INIT(&(new->marks_head));
60 con_attach(new, parent, false);
65 /* A wrapper for con_new_skeleton, to retain the old con_new behaviour
68 Con *con_new(Con *parent, i3Window *window) {
69 Con *new = con_new_skeleton(parent, window);
74 static void _con_attach(Con *con, Con *parent, Con *previous, bool ignore_focus) {
77 Con *current = previous;
78 struct nodes_head *nodes_head = &(parent->nodes_head);
79 struct focus_head *focus_head = &(parent->focus_head);
81 /* Workspaces are handled differently: they need to be inserted at the
83 if (con->type == CT_WORKSPACE) {
84 DLOG("it's a workspace. num = %d\n", con->num);
85 if (con->num == -1 || TAILQ_EMPTY(nodes_head)) {
86 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
88 current = TAILQ_FIRST(nodes_head);
89 if (con->num < current->num) {
90 /* we need to insert the container at the beginning */
91 TAILQ_INSERT_HEAD(nodes_head, con, nodes);
93 while (current->num != -1 && con->num > current->num) {
94 current = TAILQ_NEXT(current, nodes);
95 if (current == TAILQ_END(nodes_head)) {
100 /* we need to insert con after current, if current is not NULL */
102 TAILQ_INSERT_BEFORE(current, con, nodes);
104 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
107 goto add_to_focus_head;
110 if (con->type == CT_FLOATING_CON) {
111 DLOG("Inserting into floating containers\n");
112 TAILQ_INSERT_TAIL(&(parent->floating_head), con, floating_windows);
115 /* Get the first tiling container in focus stack */
116 TAILQ_FOREACH(loop, &(parent->focus_head), focused) {
117 if (loop->type == CT_FLOATING_CON)
124 /* When the container is not a split container (but contains a window)
125 * and is attached to a workspace, we check if the user configured a
126 * workspace_layout. This is done in workspace_attach_to, which will
127 * provide us with the container to which we should attach (either the
128 * workspace or a new split container with the configured
131 if (con->window != NULL &&
132 parent->type == CT_WORKSPACE &&
133 parent->workspace_layout != L_DEFAULT) {
134 DLOG("Parent is a workspace. Applying default layout...\n");
135 Con *target = workspace_attach_to(parent);
137 /* Attach the original con to this new split con instead */
138 nodes_head = &(target->nodes_head);
139 focus_head = &(target->focus_head);
140 con->parent = target;
146 /* Insert the container after the tiling container, if found.
147 * When adding to a CT_OUTPUT, just append one after another. */
148 if (current && parent->type != CT_OUTPUT) {
149 DLOG("Inserting con = %p after con %p\n", con, current);
150 TAILQ_INSERT_AFTER(nodes_head, current, con, nodes);
152 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
156 /* We insert to the TAIL because con_focus() will correct this.
157 * This way, we have the option to insert Cons without having
159 TAILQ_INSERT_TAIL(focus_head, con, focused);
160 con_force_split_parents_redraw(con);
164 * Attaches the given container to the given parent. This happens when moving
165 * a container or when inserting a new container at a specific place in the
168 * ignore_focus is to just insert the Con at the end (useful when creating a
169 * new split container *around* some containers, that is, detaching and
170 * attaching them in order without wanting to mess with the focus in between).
173 void con_attach(Con *con, Con *parent, bool ignore_focus) {
174 _con_attach(con, parent, NULL, ignore_focus);
178 * Detaches the given container from its current parent
181 void con_detach(Con *con) {
182 con_force_split_parents_redraw(con);
183 if (con->type == CT_FLOATING_CON) {
184 TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
185 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
187 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
188 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
193 * Sets input focus to the given container. Will be updated in X11 in the next
194 * run of x_push_changes().
197 void con_focus(Con *con) {
199 DLOG("con_focus = %p\n", con);
201 /* 1: set focused-pointer to the new con */
202 /* 2: exchange the position of the container in focus stack of the parent all the way up */
203 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
204 TAILQ_INSERT_HEAD(&(con->parent->focus_head), con, focused);
205 if (con->parent->parent != NULL)
206 con_focus(con->parent);
209 /* We can't blindly reset non-leaf containers since they might have
210 * other urgent children. Therefore we only reset leafs and propagate
211 * the changes upwards via con_update_parents_urgency() which does proper
212 * checks before resetting the urgency.
214 if (con->urgent && con_is_leaf(con)) {
215 con_set_urgency(con, false);
216 con_update_parents_urgency(con);
217 workspace_update_urgent_flag(con_get_workspace(con));
218 ipc_send_window_event("urgent", con);
223 * Closes the given container.
226 void con_close(Con *con, kill_window_t kill_window) {
228 DLOG("Closing con = %p.\n", con);
230 /* We never close output or root containers. */
231 if (con->type == CT_OUTPUT || con->type == CT_ROOT) {
232 DLOG("con = %p is of type %d, not closing anything.\n", con, con->type);
236 if (con->type == CT_WORKSPACE) {
237 DLOG("con = %p is a workspace, closing all children instead.\n", con);
238 Con *child, *nextchild;
239 for (child = TAILQ_FIRST(&(con->focus_head)); child;) {
240 nextchild = TAILQ_NEXT(child, focused);
241 DLOG("killing child = %p.\n", child);
242 tree_close_internal(child, kill_window, false, false);
249 tree_close_internal(con, kill_window, false, false);
253 * Returns true when this node is a leaf node (has no children)
256 bool con_is_leaf(Con *con) {
257 return TAILQ_EMPTY(&(con->nodes_head));
261 * Returns true when this con is a leaf node with a managed X11 window (e.g.,
262 * excluding dock containers)
264 bool con_has_managed_window(Con *con) {
265 return (con != NULL && con->window != NULL && con->window->id != XCB_WINDOW_NONE && con_get_workspace(con) != NULL);
269 * Returns true if this node has regular or floating children.
272 bool con_has_children(Con *con) {
273 return (!con_is_leaf(con) || !TAILQ_EMPTY(&(con->floating_head)));
277 * Returns true if a container should be considered split.
280 bool con_is_split(Con *con) {
281 if (con_is_leaf(con))
284 switch (con->layout) {
295 * This will only return true for containers which have some parent with
296 * a tabbed / stacked parent of which they are not the currently focused child.
299 bool con_is_hidden(Con *con) {
302 /* ascend to the workspace level and memorize the highest-up container
303 * which is stacked or tabbed. */
304 while (current != NULL && current->type != CT_WORKSPACE) {
305 Con *parent = current->parent;
306 if (parent != NULL && (parent->layout == L_TABBED || parent->layout == L_STACKED)) {
307 if (TAILQ_FIRST(&(parent->focus_head)) != current)
318 * Returns whether the container or any of its children is sticky.
321 bool con_is_sticky(Con *con) {
326 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
327 if (con_is_sticky(child))
335 * Returns true if this node accepts a window (if the node swallows windows,
336 * it might already have swallowed enough and cannot hold any more).
339 bool con_accepts_window(Con *con) {
340 /* 1: workspaces never accept direct windows */
341 if (con->type == CT_WORKSPACE)
344 if (con_is_split(con)) {
345 DLOG("container %p does not accept windows, it is a split container.\n", con);
349 /* TODO: if this is a swallowing container, we need to check its max_clients */
350 return (con->window == NULL);
354 * Gets the output container (first container with CT_OUTPUT in hierarchy) this
358 Con *con_get_output(Con *con) {
360 while (result != NULL && result->type != CT_OUTPUT)
361 result = result->parent;
362 /* We must be able to get an output because focus can never be set higher
363 * in the tree (root node cannot be focused). */
364 assert(result != NULL);
369 * Gets the workspace container this node is on.
372 Con *con_get_workspace(Con *con) {
374 while (result != NULL && result->type != CT_WORKSPACE)
375 result = result->parent;
380 * Searches parenst of the given 'con' until it reaches one with the specified
381 * 'orientation'. Aborts when it comes across a floating_con.
384 Con *con_parent_with_orientation(Con *con, orientation_t orientation) {
385 DLOG("Searching for parent of Con %p with orientation %d\n", con, orientation);
386 Con *parent = con->parent;
387 if (parent->type == CT_FLOATING_CON)
389 while (con_orientation(parent) != orientation) {
390 DLOG("Need to go one level further up\n");
391 parent = parent->parent;
392 /* Abort when we reach a floating con, or an output con */
394 (parent->type == CT_FLOATING_CON ||
395 parent->type == CT_OUTPUT ||
396 (parent->parent && parent->parent->type == CT_OUTPUT)))
401 DLOG("Result: %p\n", parent);
406 * helper data structure for the breadth-first-search in
407 * con_get_fullscreen_con()
413 TAILQ_ENTRY(bfs_entry)
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)
427 bfs_head = TAILQ_HEAD_INITIALIZER(bfs_head);
429 struct bfs_entry *entry = smalloc(sizeof(struct bfs_entry));
431 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
433 while (!TAILQ_EMPTY(&bfs_head)) {
434 entry = TAILQ_FIRST(&bfs_head);
435 current = entry->con;
436 if (current != con && current->fullscreen_mode == fullscreen_mode) {
437 /* empty the queue */
438 while (!TAILQ_EMPTY(&bfs_head)) {
439 entry = TAILQ_FIRST(&bfs_head);
440 TAILQ_REMOVE(&bfs_head, entry, entries);
446 TAILQ_REMOVE(&bfs_head, entry, entries);
449 TAILQ_FOREACH(child, &(current->nodes_head), nodes) {
450 entry = smalloc(sizeof(struct bfs_entry));
452 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
455 TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
456 entry = smalloc(sizeof(struct bfs_entry));
458 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
466 * Returns true if the container is internal, such as __i3_scratch
469 bool con_is_internal(Con *con) {
470 return (con->name[0] == '_' && con->name[1] == '_');
474 * Returns true if the node is floating.
477 bool con_is_floating(Con *con) {
479 DLOG("checking if con %p is floating\n", con);
480 return (con->floating >= FLOATING_AUTO_ON);
484 * Returns true if the container is a docked container.
487 bool con_is_docked(Con *con) {
488 if (con->parent == NULL)
491 if (con->parent->type == CT_DOCKAREA)
494 return con_is_docked(con->parent);
498 * Checks if the given container is either floating or inside some floating
499 * container. It returns the FLOATING_CON container.
502 Con *con_inside_floating(Con *con) {
504 if (con->type == CT_FLOATING_CON)
507 if (con->floating >= FLOATING_AUTO_ON)
510 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
513 return con_inside_floating(con->parent);
517 * Checks if the given container is inside a focused container.
520 bool con_inside_focused(Con *con) {
525 return con_inside_focused(con->parent);
529 * Returns the container with the given client window ID or NULL if no such
533 Con *con_by_window_id(xcb_window_t window) {
535 TAILQ_FOREACH(con, &all_cons, all_cons)
536 if (con->window != NULL && con->window->id == window)
542 * Returns the container with the given frame ID or NULL if no such container
546 Con *con_by_frame_id(xcb_window_t frame) {
548 TAILQ_FOREACH(con, &all_cons, all_cons)
549 if (con->frame.id == frame)
555 * Returns the container with the given mark or NULL if no such container
559 Con *con_by_mark(const char *mark) {
561 TAILQ_FOREACH(con, &all_cons, all_cons) {
562 if (con_has_mark(con, mark))
570 * Returns true if and only if the given containers holds the mark.
573 bool con_has_mark(Con *con, const char *mark) {
575 TAILQ_FOREACH(current, &(con->marks_head), marks) {
576 if (strcmp(current->name, mark) == 0)
584 * Toggles the mark on a container.
585 * If the container already has this mark, the mark is removed.
586 * Otherwise, the mark is assigned to the container.
589 void con_mark_toggle(Con *con, const char *mark, mark_mode_t mode) {
591 DLOG("Toggling mark \"%s\" on con = %p.\n", mark, con);
593 if (con_has_mark(con, mark)) {
594 con_unmark(con, mark);
596 con_mark(con, mark, mode);
601 * Assigns a mark to the container.
604 void con_mark(Con *con, const char *mark, mark_mode_t mode) {
606 DLOG("Setting mark \"%s\" on con = %p.\n", mark, con);
608 con_unmark(NULL, mark);
609 if (mode == MM_REPLACE) {
610 DLOG("Removing all existing marks on con = %p.\n", con);
613 while (!TAILQ_EMPTY(&(con->marks_head))) {
614 current = TAILQ_FIRST(&(con->marks_head));
615 con_unmark(con, current->name);
619 mark_t *new = scalloc(1, sizeof(mark_t));
620 new->name = sstrdup(mark);
621 TAILQ_INSERT_TAIL(&(con->marks_head), new, marks);
622 ipc_send_window_event("mark", con);
624 con->mark_changed = true;
628 * Removes marks from containers.
629 * If con is NULL, all containers are considered.
630 * If name is NULL, this removes all existing marks.
631 * Otherwise, it will only remove the given mark (if it is present).
634 void con_unmark(Con *con, const char *name) {
637 DLOG("Unmarking all containers.\n");
638 TAILQ_FOREACH(current, &all_cons, all_cons) {
639 if (con != NULL && current != con)
642 if (TAILQ_EMPTY(&(current->marks_head)))
646 while (!TAILQ_EMPTY(&(current->marks_head))) {
647 mark = TAILQ_FIRST(&(current->marks_head));
649 TAILQ_REMOVE(&(current->marks_head), mark, marks);
652 ipc_send_window_event("mark", current);
655 current->mark_changed = true;
658 DLOG("Removing mark \"%s\".\n", name);
659 current = (con == NULL) ? con_by_mark(name) : con;
660 if (current == NULL) {
661 DLOG("No container found with this mark, so there is nothing to do.\n");
665 DLOG("Found mark on con = %p. Removing it now.\n", current);
666 current->mark_changed = true;
669 TAILQ_FOREACH(mark, &(current->marks_head), marks) {
670 if (strcmp(mark->name, name) != 0)
674 TAILQ_REMOVE(&(current->marks_head), mark, marks);
677 ipc_send_window_event("mark", current);
684 * Returns the first container below 'con' which wants to swallow this window
688 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
691 //DLOG("searching con for window %p starting at con %p\n", window, con);
692 //DLOG("class == %s\n", window->class_class);
694 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
695 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
696 if (!match_matches_window(match, window))
698 if (store_match != NULL)
699 *store_match = match;
702 Con *result = con_for_window(child, window, store_match);
707 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
708 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
709 if (!match_matches_window(match, window))
711 if (store_match != NULL)
712 *store_match = match;
715 Con *result = con_for_window(child, window, store_match);
724 * Returns the number of children of this container.
727 int con_num_children(Con *con) {
731 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
738 * Returns the number of visible non-floating children of this container.
739 * For example, if the container contains a hsplit which has two children,
740 * this will return 2 instead of 1.
742 int con_num_visible_children(Con *con) {
748 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
749 /* Visible leaf nodes are a child. */
750 if (!con_is_hidden(current) && con_is_leaf(current))
752 /* All other containers need to be recursed. */
754 children += con_num_visible_children(current);
761 * Count the number of windows (i.e., leaf containers).
764 int con_num_windows(Con *con) {
768 if (con_has_managed_window(con))
773 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
774 num += con_num_windows(current);
781 * Updates the percent attribute of the children of the given container. This
782 * function needs to be called when a window is added or removed from a
786 void con_fix_percent(Con *con) {
788 int children = con_num_children(con);
790 // calculate how much we have distributed and how many containers
791 // with a percentage set we have
793 int children_with_percent = 0;
794 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
795 if (child->percent > 0.0) {
796 total += child->percent;
797 ++children_with_percent;
801 // if there were children without a percentage set, set to a value that
802 // will make those children proportional to all others
803 if (children_with_percent != children) {
804 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
805 if (child->percent <= 0.0) {
806 if (children_with_percent == 0)
807 total += (child->percent = 1.0);
809 total += (child->percent = total / children_with_percent);
814 // if we got a zero, just distribute the space equally, otherwise
815 // distribute according to the proportions we got
817 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
818 child->percent = 1.0 / children;
819 } else if (total != 1.0) {
820 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
821 child->percent /= total;
826 * Toggles fullscreen mode for the given container. If there already is a
827 * fullscreen container on this workspace, fullscreen will be disabled and then
828 * enabled for the container the user wants to have in fullscreen mode.
831 void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
832 if (con->type == CT_WORKSPACE) {
833 DLOG("You cannot make a workspace fullscreen.\n");
837 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
839 if (con->fullscreen_mode == CF_NONE)
840 con_enable_fullscreen(con, fullscreen_mode);
842 con_disable_fullscreen(con);
846 * Sets the specified fullscreen mode for the given container, sends the
847 * “fullscreen_mode” event and changes the XCB fullscreen property of the
848 * container’s window, if any.
851 static void con_set_fullscreen_mode(Con *con, fullscreen_mode_t fullscreen_mode) {
852 con->fullscreen_mode = fullscreen_mode;
854 DLOG("mode now: %d\n", con->fullscreen_mode);
856 /* Send an ipc window "fullscreen_mode" event */
857 ipc_send_window_event("fullscreen_mode", con);
859 /* update _NET_WM_STATE if this container has a window */
860 /* TODO: when a window is assigned to a container which is already
861 * fullscreened, this state needs to be pushed to the client, too */
862 if (con->window == NULL)
865 if (con->fullscreen_mode != CF_NONE) {
866 DLOG("Setting _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
867 xcb_add_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
869 DLOG("Removing _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
870 xcb_remove_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
875 * Enables fullscreen mode for the given container, if necessary.
877 * If the container’s mode is already CF_OUTPUT or CF_GLOBAL, the container is
878 * kept fullscreen but its mode is set to CF_GLOBAL and CF_OUTPUT,
881 * Other fullscreen containers will be disabled first, if they hide the new
885 void con_enable_fullscreen(Con *con, fullscreen_mode_t fullscreen_mode) {
886 if (con->type == CT_WORKSPACE) {
887 DLOG("You cannot make a workspace fullscreen.\n");
891 assert(fullscreen_mode == CF_GLOBAL || fullscreen_mode == CF_OUTPUT);
893 if (fullscreen_mode == CF_GLOBAL)
894 DLOG("enabling global fullscreen for %p / %s\n", con, con->name);
896 DLOG("enabling fullscreen for %p / %s\n", con, con->name);
898 if (con->fullscreen_mode == fullscreen_mode) {
899 DLOG("fullscreen already enabled for %p / %s\n", con, con->name);
903 Con *con_ws = con_get_workspace(con);
905 /* Disable any fullscreen container that would conflict the new one. */
906 Con *fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
907 if (fullscreen == NULL)
908 fullscreen = con_get_fullscreen_con(con_ws, CF_OUTPUT);
909 if (fullscreen != NULL)
910 con_disable_fullscreen(fullscreen);
912 /* Set focus to new fullscreen container. Unless in global fullscreen mode
913 * and on another workspace restore focus afterwards.
914 * Switch to the container’s workspace if mode is global. */
915 Con *cur_ws = con_get_workspace(focused);
916 Con *old_focused = focused;
917 if (fullscreen_mode == CF_GLOBAL && cur_ws != con_ws)
918 workspace_show(con_ws);
920 if (fullscreen_mode != CF_GLOBAL && cur_ws != con_ws)
921 con_focus(old_focused);
923 con_set_fullscreen_mode(con, fullscreen_mode);
927 * Disables fullscreen mode for the given container regardless of the mode, if
931 void con_disable_fullscreen(Con *con) {
932 if (con->type == CT_WORKSPACE) {
933 DLOG("You cannot make a workspace fullscreen.\n");
937 DLOG("disabling fullscreen for %p / %s\n", con, con->name);
939 if (con->fullscreen_mode == CF_NONE) {
940 DLOG("fullscreen already disabled for %p / %s\n", con, con->name);
944 con_set_fullscreen_mode(con, CF_NONE);
947 static bool _con_move_to_con(Con *con, Con *target, bool behind_focused, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
948 Con *orig_target = target;
950 /* Prevent moving if this would violate the fullscreen focus restrictions. */
951 Con *target_ws = con_get_workspace(target);
952 if (!con_fullscreen_permits_focusing(target_ws)) {
953 LOG("Cannot move out of a fullscreen container.\n");
957 if (con_is_floating(con)) {
958 DLOG("Container is floating, using parent instead.\n");
962 Con *source_ws = con_get_workspace(con);
964 if (con->type == CT_WORKSPACE) {
965 /* Re-parent all of the old workspace's floating windows. */
967 while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
968 child = TAILQ_FIRST(&(source_ws->floating_head));
969 con_move_to_workspace(child, target_ws, true, true, false);
972 /* If there are no non-floating children, ignore the workspace. */
973 if (con_is_leaf(con))
976 con = workspace_encapsulate(con);
978 ELOG("Workspace failed to move its contents into a container!\n");
983 /* Save the urgency state so that we can restore it. */
984 bool urgent = con->urgent;
986 /* Save the current workspace. So we can call workspace_show() by the end
987 * of this function. */
988 Con *current_ws = con_get_workspace(focused);
990 Con *source_output = con_get_output(con),
991 *dest_output = con_get_output(target_ws);
993 /* 1: save the container which is going to be focused after the current
994 * container is moved away */
995 Con *focus_next = con_next_focused(con);
997 /* 2: we go up one level, but only when target is a normal container */
998 if (target->type != CT_WORKSPACE) {
999 DLOG("target originally = %p / %s / type %d\n", target, target->name, target->type);
1000 target = target->parent;
1003 /* 3: if the target container is floating, we get the workspace instead.
1004 * Only tiling windows need to get inserted next to the current container.
1006 Con *floatingcon = con_inside_floating(target);
1007 if (floatingcon != NULL) {
1008 DLOG("floatingcon, going up even further\n");
1009 target = floatingcon->parent;
1012 if (con->type == CT_FLOATING_CON) {
1013 Con *ws = con_get_workspace(target);
1014 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
1018 if (source_output != dest_output) {
1019 /* Take the relative coordinates of the current output, then add them
1020 * to the coordinate space of the correct output */
1021 if (fix_coordinates && con->type == CT_FLOATING_CON) {
1022 floating_fix_coordinates(con, &(source_output->rect), &(dest_output->rect));
1024 DLOG("Not fixing coordinates, fix_coordinates flag = %d\n", fix_coordinates);
1026 /* If moving to a visible workspace, call show so it can be considered
1027 * focused. Must do before attaching because workspace_show checks to see
1028 * if focused container is in its area. */
1029 if (!ignore_focus && workspace_is_visible(target_ws)) {
1030 workspace_show(target_ws);
1032 /* Don’t warp if told so (when dragging floating windows with the
1033 * mouse for example) */
1035 x_set_warp_to(NULL);
1037 x_set_warp_to(&(con->rect));
1041 /* If moving a fullscreen container and the destination already has a
1042 * fullscreen window on it, un-fullscreen the target's fullscreen con. */
1043 Con *fullscreen = con_get_fullscreen_con(target_ws, CF_OUTPUT);
1044 if (con->fullscreen_mode != CF_NONE && fullscreen != NULL) {
1045 con_toggle_fullscreen(fullscreen, CF_OUTPUT);
1049 DLOG("Re-attaching container to %p / %s\n", target, target->name);
1050 /* 4: re-attach the con to the parent of this focused container */
1051 Con *parent = con->parent;
1053 _con_attach(con, target, behind_focused ? NULL : orig_target, !behind_focused);
1055 /* 5: fix the percentages */
1056 con_fix_percent(parent);
1058 con_fix_percent(target);
1060 /* 6: focus the con on the target workspace, but only within that
1061 * workspace, that is, don’t move focus away if the target workspace is
1063 * We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
1064 * we don’t focus when there is a fullscreen con on that workspace. We
1065 * also don't do it if the caller requested to ignore focus. */
1066 if (!ignore_focus && !con_is_internal(target_ws) && !fullscreen) {
1067 /* We need to save the focused workspace on the output in case the
1068 * new workspace is hidden and it's necessary to immediately switch
1069 * back to the originally-focused workspace. */
1070 Con *old_focus = TAILQ_FIRST(&(output_get_content(dest_output)->focus_head));
1071 con_focus(con_descend_focused(con));
1073 /* Restore focus if the output's focused workspace has changed. */
1074 if (con_get_workspace(focused) != old_focus)
1075 con_focus(old_focus);
1078 /* 7: when moving to another workspace, we leave the focus on the current
1079 * workspace. (see also #809) */
1081 /* Descend focus stack in case focus_next is a workspace which can
1082 * occur if we move to the same workspace. Also show current workspace
1083 * to ensure it is focused. */
1085 workspace_show(current_ws);
1087 /* Set focus only if con was on current workspace before moving.
1088 * Otherwise we would give focus to some window on different workspace. */
1089 if (!ignore_focus && source_ws == current_ws)
1090 con_focus(con_descend_focused(focus_next));
1092 /* 8. If anything within the container is associated with a startup sequence,
1093 * delete it so child windows won't be created on the old workspace. */
1094 struct Startup_Sequence *sequence;
1095 xcb_get_property_cookie_t cookie;
1096 xcb_get_property_reply_t *startup_id_reply;
1098 if (!con_is_leaf(con)) {
1100 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1104 cookie = xcb_get_property(conn, false, child->window->id,
1105 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1106 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1108 sequence = startup_sequence_get(child->window, startup_id_reply, true);
1109 if (sequence != NULL)
1110 startup_sequence_delete(sequence);
1115 cookie = xcb_get_property(conn, false, con->window->id,
1116 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1117 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1119 sequence = startup_sequence_get(con->window, startup_id_reply, true);
1120 if (sequence != NULL)
1121 startup_sequence_delete(sequence);
1124 /* 9. If the container was marked urgent, move the urgency hint. */
1126 workspace_update_urgent_flag(source_ws);
1127 con_set_urgency(con, true);
1130 CALL(parent, on_remove_child);
1132 ipc_send_window_event("move", con);
1133 ewmh_update_wm_desktop();
1138 * Moves the given container to the given mark.
1141 bool con_move_to_mark(Con *con, const char *mark) {
1142 Con *target = con_by_mark(mark);
1143 if (target == NULL) {
1144 DLOG("found no container with mark \"%s\"\n", mark);
1148 /* For floating target containers, we just send the window to the same workspace. */
1149 if (con_is_floating(target)) {
1150 DLOG("target container is floating, moving container to target's workspace.\n");
1151 con_move_to_workspace(con, con_get_workspace(target), true, false, false);
1155 if (con->type == CT_WORKSPACE) {
1156 DLOG("target container is a workspace, simply moving the container there.\n");
1157 con_move_to_workspace(con, target, true, false, false);
1161 /* For split containers, we use the currently focused container within it.
1162 * This allows setting marks on, e.g., tabbed containers which will move
1163 * con to a new tab behind the focused tab. */
1164 if (con_is_split(target)) {
1165 DLOG("target is a split container, descending to the currently focused child.\n");
1166 target = TAILQ_FIRST(&(target->focus_head));
1169 if (con == target || con == target->parent) {
1170 DLOG("cannot move the container to or inside itself, aborting.\n");
1174 return _con_move_to_con(con, target, false, true, false, false);
1178 * Moves the given container to the currently focused container on the given
1181 * The fix_coordinates flag will translate the current coordinates (offset from
1182 * the monitor position basically) to appropriate coordinates on the
1183 * destination workspace.
1184 * Not enabling this behaviour comes in handy when this function gets called by
1185 * floating_maybe_reassign_ws, which will only "move" a floating window when it
1186 * *already* changed its coordinates to a different output.
1188 * The dont_warp flag disables pointer warping and will be set when this
1189 * function is called while dragging a floating window.
1191 * If ignore_focus is set, the container will be moved without modifying focus
1194 * TODO: is there a better place for this function?
1197 void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
1198 assert(workspace->type == CT_WORKSPACE);
1200 Con *source_ws = con_get_workspace(con);
1201 if (workspace == source_ws) {
1202 DLOG("Not moving, already there\n");
1206 Con *target = con_descend_focused(workspace);
1207 _con_move_to_con(con, target, true, fix_coordinates, dont_warp, ignore_focus);
1211 * Moves the given container to the currently focused container on the
1212 * visible workspace on the given output.
1215 void con_move_to_output(Con *con, Output *output) {
1217 GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1219 DLOG("Moving con %p to output %s\n", con, output->name);
1220 con_move_to_workspace(con, ws, false, false, false);
1224 * Returns the orientation of the given container (for stacked containers,
1225 * vertical orientation is used regardless of the actual orientation of the
1229 orientation_t con_orientation(Con *con) {
1230 switch (con->layout) {
1232 /* stacking containers behave like they are in vertical orientation */
1237 /* tabbed containers behave like they are in vertical orientation */
1242 DLOG("Someone called con_orientation() on a con with L_DEFAULT, this is a bug in the code.\n");
1248 DLOG("con_orientation() called on dockarea/output (%d) container %p\n", con->layout, con);
1253 DLOG("con_orientation() ran into default\n");
1259 * Returns the container which will be focused next when the given container
1260 * is not available anymore. Called in tree_close_internal and con_move_to_workspace
1261 * to properly restore focus.
1264 Con *con_next_focused(Con *con) {
1266 /* floating containers are attached to a workspace, so we focus either the
1267 * next floating container (if any) or the workspace itself. */
1268 if (con->type == CT_FLOATING_CON) {
1269 DLOG("selecting next for CT_FLOATING_CON\n");
1270 next = TAILQ_NEXT(con, floating_windows);
1271 DLOG("next = %p\n", next);
1273 next = TAILQ_PREV(con, floating_head, floating_windows);
1274 DLOG("using prev, next = %p\n", next);
1277 Con *ws = con_get_workspace(con);
1279 DLOG("no more floating containers for next = %p, restoring workspace focus\n", next);
1280 while (next != TAILQ_END(&(ws->focus_head)) && !TAILQ_EMPTY(&(next->focus_head))) {
1281 next = TAILQ_FIRST(&(next->focus_head));
1283 DLOG("skipping container itself, we want the next client\n");
1284 next = TAILQ_NEXT(next, focused);
1287 if (next == TAILQ_END(&(ws->focus_head))) {
1288 DLOG("Focus list empty, returning ws\n");
1292 /* Instead of returning the next CT_FLOATING_CON, we descend it to
1293 * get an actual window to focus. */
1294 next = con_descend_focused(next);
1299 /* dock clients cannot be focused, so we focus the workspace instead */
1300 if (con->parent->type == CT_DOCKAREA) {
1301 DLOG("selecting workspace for dock client\n");
1302 return con_descend_focused(output_get_content(con->parent->parent));
1305 /* if 'con' is not the first entry in the focus stack, use the first one as
1306 * it’s currently focused already */
1307 Con *first = TAILQ_FIRST(&(con->parent->focus_head));
1309 DLOG("Using first entry %p\n", first);
1312 /* try to focus the next container on the same level as this one or fall
1313 * back to its parent */
1314 if (!(next = TAILQ_NEXT(con, focused)))
1318 /* now go down the focus stack as far as
1319 * possible, excluding the current container */
1320 while (!TAILQ_EMPTY(&(next->focus_head)) &&
1321 TAILQ_FIRST(&(next->focus_head)) != con)
1322 next = TAILQ_FIRST(&(next->focus_head));
1328 * Get the next/previous container in the specified orientation. This may
1329 * travel up until it finds a container with suitable orientation.
1332 Con *con_get_next(Con *con, char way, orientation_t orientation) {
1333 DLOG("con_get_next(way=%c, orientation=%d)\n", way, orientation);
1334 /* 1: get the first parent with the same orientation */
1336 while (con_orientation(cur->parent) != orientation) {
1337 DLOG("need to go one level further up\n");
1338 if (cur->parent->type == CT_WORKSPACE) {
1339 LOG("that's a workspace, we can't go further up\n");
1345 /* 2: chose next (or previous) */
1348 next = TAILQ_NEXT(cur, nodes);
1349 /* if we are at the end of the list, we need to wrap */
1350 if (next == TAILQ_END(&(parent->nodes_head)))
1353 next = TAILQ_PREV(cur, nodes_head, nodes);
1354 /* if we are at the end of the list, we need to wrap */
1355 if (next == TAILQ_END(&(cur->nodes_head)))
1358 DLOG("next = %p\n", next);
1364 * Returns the focused con inside this client, descending the tree as far as
1365 * possible. This comes in handy when attaching a con to a workspace at the
1366 * currently focused position, for example.
1369 Con *con_descend_focused(Con *con) {
1371 while (next != focused && !TAILQ_EMPTY(&(next->focus_head)))
1372 next = TAILQ_FIRST(&(next->focus_head));
1377 * Returns the focused con inside this client, descending the tree as far as
1378 * possible. This comes in handy when attaching a con to a workspace at the
1379 * currently focused position, for example.
1381 * Works like con_descend_focused but considers only tiling cons.
1384 Con *con_descend_tiling_focused(Con *con) {
1388 if (next == focused)
1392 TAILQ_FOREACH(child, &(next->focus_head), focused) {
1393 if (child->type == CT_FLOATING_CON)
1399 } while (before != next && next != focused);
1404 * Returns the leftmost, rightmost, etc. container in sub-tree. For example, if
1405 * direction is D_LEFT, then we return the rightmost container and if direction
1406 * is D_RIGHT, we return the leftmost container. This is because if we are
1407 * moving D_LEFT, and thus want the rightmost container.
1410 Con *con_descend_direction(Con *con, direction_t direction) {
1413 int orientation = con_orientation(con);
1414 DLOG("con_descend_direction(%p, orientation %d, direction %d)\n", con, orientation, direction);
1415 if (direction == D_LEFT || direction == D_RIGHT) {
1416 if (orientation == HORIZ) {
1417 /* If the direction is horizontal, we can use either the first
1418 * (D_RIGHT) or the last con (D_LEFT) */
1419 if (direction == D_RIGHT)
1420 most = TAILQ_FIRST(&(con->nodes_head));
1422 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1423 } else if (orientation == VERT) {
1424 /* Wrong orientation. We use the last focused con. Within that con,
1425 * we recurse to chose the left/right con or at least the last
1427 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1428 if (current->type != CT_FLOATING_CON) {
1434 /* If the con has no orientation set, it’s not a split container
1435 * but a container with a client window, so stop recursing */
1440 if (direction == D_UP || direction == D_DOWN) {
1441 if (orientation == VERT) {
1442 /* If the direction is vertical, we can use either the first
1443 * (D_DOWN) or the last con (D_UP) */
1444 if (direction == D_UP)
1445 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1447 most = TAILQ_FIRST(&(con->nodes_head));
1448 } else if (orientation == HORIZ) {
1449 /* Wrong orientation. We use the last focused con. Within that con,
1450 * we recurse to chose the top/bottom con or at least the last
1452 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1453 if (current->type != CT_FLOATING_CON) {
1459 /* If the con has no orientation set, it’s not a split container
1460 * but a container with a client window, so stop recursing */
1467 return con_descend_direction(most, direction);
1471 * Returns a "relative" Rect which contains the amount of pixels that need to
1472 * be added to the original Rect to get the final position (obviously the
1473 * amount of pixels for normal, 1pixel and borderless are different).
1476 Rect con_border_style_rect(Con *con) {
1477 if (config.hide_edge_borders == HEBM_SMART && con_num_visible_children(con_get_workspace(con)) <= 1) {
1478 if (!con_is_floating(con)) {
1479 return (Rect){0, 0, 0, 0};
1483 adjacent_t borders_to_hide = ADJ_NONE;
1484 int border_width = con->current_border_width;
1485 DLOG("The border width for con is set to: %d\n", con->current_border_width);
1487 if (con->current_border_width < 0) {
1488 if (con_is_floating(con)) {
1489 border_width = config.default_floating_border_width;
1491 border_width = config.default_border_width;
1494 DLOG("Effective border width is set to: %d\n", border_width);
1495 /* Shortcut to avoid calling con_adjacent_borders() on dock containers. */
1496 int border_style = con_border_style(con);
1497 if (border_style == BS_NONE)
1498 return (Rect){0, 0, 0, 0};
1499 if (border_style == BS_NORMAL) {
1500 result = (Rect){border_width, 0, -(2 * border_width), -(border_width)};
1502 result = (Rect){border_width, border_width, -(2 * border_width), -(2 * border_width)};
1505 borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
1506 if (borders_to_hide & ADJ_LEFT_SCREEN_EDGE) {
1507 result.x -= border_width;
1508 result.width += border_width;
1510 if (borders_to_hide & ADJ_RIGHT_SCREEN_EDGE) {
1511 result.width += border_width;
1513 if (borders_to_hide & ADJ_UPPER_SCREEN_EDGE && (border_style != BS_NORMAL)) {
1514 result.y -= border_width;
1515 result.height += border_width;
1517 if (borders_to_hide & ADJ_LOWER_SCREEN_EDGE) {
1518 result.height += border_width;
1524 * Returns adjacent borders of the window. We need this if hide_edge_borders is
1527 adjacent_t con_adjacent_borders(Con *con) {
1528 adjacent_t result = ADJ_NONE;
1529 /* Floating windows are never adjacent to any other window, so
1530 don’t hide their border(s). This prevents bug #998. */
1531 if (con_is_floating(con))
1534 Con *workspace = con_get_workspace(con);
1535 if (con->rect.x == workspace->rect.x)
1536 result |= ADJ_LEFT_SCREEN_EDGE;
1537 if (con->rect.x + con->rect.width == workspace->rect.x + workspace->rect.width)
1538 result |= ADJ_RIGHT_SCREEN_EDGE;
1539 if (con->rect.y == workspace->rect.y)
1540 result |= ADJ_UPPER_SCREEN_EDGE;
1541 if (con->rect.y + con->rect.height == workspace->rect.y + workspace->rect.height)
1542 result |= ADJ_LOWER_SCREEN_EDGE;
1547 * Use this function to get a container’s border style. This is important
1548 * because when inside a stack, the border style is always BS_NORMAL.
1549 * For tabbed mode, the same applies, with one exception: when the container is
1550 * borderless and the only element in the tabbed container, the border is not
1553 * For children of a CT_DOCKAREA, the border style is always none.
1556 int con_border_style(Con *con) {
1557 Con *fs = con_get_fullscreen_con(con->parent, CF_OUTPUT);
1559 DLOG("this one is fullscreen! overriding BS_NONE\n");
1563 if (con->parent->layout == L_STACKED)
1564 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1566 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
1567 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1569 if (con->parent->type == CT_DOCKAREA)
1572 return con->border_style;
1576 * Sets the given border style on con, correctly keeping the position/size of a
1580 void con_set_border_style(Con *con, int border_style, int border_width) {
1581 /* Handle the simple case: non-floating containerns */
1582 if (!con_is_floating(con)) {
1583 con->border_style = border_style;
1584 con->current_border_width = border_width;
1588 /* For floating containers, we want to keep the position/size of the
1589 * *window* itself. We first add the border pixels to con->rect to make
1590 * con->rect represent the absolute position of the window (same for
1591 * parent). Then, we change the border style and subtract the new border
1592 * pixels. For the parent, we do the same also for the decoration. */
1593 DLOG("This is a floating container\n");
1595 Con *parent = con->parent;
1596 Rect bsr = con_border_style_rect(con);
1597 int deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1599 con->rect = rect_add(con->rect, bsr);
1600 parent->rect = rect_add(parent->rect, bsr);
1601 parent->rect.y += deco_height;
1602 parent->rect.height -= deco_height;
1604 /* Change the border style, get new border/decoration values. */
1605 con->border_style = border_style;
1606 con->current_border_width = border_width;
1607 bsr = con_border_style_rect(con);
1608 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1610 con->rect = rect_sub(con->rect, bsr);
1611 parent->rect = rect_sub(parent->rect, bsr);
1612 parent->rect.y -= deco_height;
1613 parent->rect.height += deco_height;
1617 * This function changes the layout of a given container. Use it to handle
1618 * special cases like changing a whole workspace to stacked/tabbed (creates a
1619 * new split container before).
1622 void con_set_layout(Con *con, layout_t layout) {
1623 DLOG("con_set_layout(%p, %d), con->type = %d\n",
1624 con, layout, con->type);
1626 /* Users can focus workspaces, but not any higher in the hierarchy.
1627 * Focus on the workspace is a special case, since in every other case, the
1628 * user means "change the layout of the parent split container". */
1629 if (con->type != CT_WORKSPACE)
1632 /* We fill in last_split_layout when switching to a different layout
1633 * since there are many places in the code that don’t use
1634 * con_set_layout(). */
1635 if (con->layout == L_SPLITH || con->layout == L_SPLITV)
1636 con->last_split_layout = con->layout;
1638 /* When the container type is CT_WORKSPACE, the user wants to change the
1639 * whole workspace into stacked/tabbed mode. To do this and still allow
1640 * intuitive operations (like level-up and then opening a new window), we
1641 * need to create a new split container. */
1642 if (con->type == CT_WORKSPACE &&
1643 (layout == L_STACKED || layout == L_TABBED)) {
1644 if (con_num_children(con) == 0) {
1645 DLOG("Setting workspace_layout to %d\n", layout);
1646 con->workspace_layout = layout;
1648 DLOG("Creating new split container\n");
1649 /* 1: create a new split container */
1650 Con *new = con_new(NULL, NULL);
1653 /* 2: Set the requested layout on the split container and mark it as
1655 new->layout = layout;
1656 new->last_split_layout = con->last_split_layout;
1658 /* Save the container that was focused before we move containers
1659 * around, but only if the container is visible (otherwise focus
1660 * will be restored properly automatically when switching). */
1661 Con *old_focused = TAILQ_FIRST(&(con->focus_head));
1662 if (old_focused == TAILQ_END(&(con->focus_head)))
1664 if (old_focused != NULL &&
1665 !workspace_is_visible(con_get_workspace(old_focused)))
1668 /* 3: move the existing cons of this workspace below the new con */
1669 DLOG("Moving cons\n");
1671 while (!TAILQ_EMPTY(&(con->nodes_head))) {
1672 child = TAILQ_FIRST(&(con->nodes_head));
1674 con_attach(child, new, true);
1677 /* 4: attach the new split container to the workspace */
1678 DLOG("Attaching new split to ws\n");
1679 con_attach(new, con, false);
1682 con_focus(old_focused);
1684 tree_flatten(croot);
1686 con_force_split_parents_redraw(con);
1690 if (layout == L_DEFAULT) {
1691 /* Special case: the layout formerly known as "default" (in combination
1692 * with an orientation). Since we switched to splith/splitv layouts,
1693 * using the "default" layout (which "only" should happen when using
1694 * legacy configs) is using the last split layout (either splith or
1695 * splitv) in order to still do the same thing. */
1696 con->layout = con->last_split_layout;
1697 /* In case last_split_layout was not initialized… */
1698 if (con->layout == L_DEFAULT)
1699 con->layout = L_SPLITH;
1701 con->layout = layout;
1703 con_force_split_parents_redraw(con);
1707 * This function toggles the layout of a given container. toggle_mode can be
1708 * either 'default' (toggle only between stacked/tabbed/last_split_layout),
1709 * 'split' (toggle only between splitv/splith) or 'all' (toggle between all
1713 void con_toggle_layout(Con *con, const char *toggle_mode) {
1715 /* Users can focus workspaces, but not any higher in the hierarchy.
1716 * Focus on the workspace is a special case, since in every other case, the
1717 * user means "change the layout of the parent split container". */
1718 if (con->type != CT_WORKSPACE)
1719 parent = con->parent;
1720 DLOG("con_toggle_layout(%p, %s), parent = %p\n", con, toggle_mode, parent);
1722 if (strcmp(toggle_mode, "split") == 0) {
1723 /* Toggle between splits. When the current layout is not a split
1724 * layout, we just switch back to last_split_layout. Otherwise, we
1725 * change to the opposite split layout. */
1726 if (parent->layout != L_SPLITH && parent->layout != L_SPLITV)
1727 con_set_layout(con, parent->last_split_layout);
1729 if (parent->layout == L_SPLITH)
1730 con_set_layout(con, L_SPLITV);
1732 con_set_layout(con, L_SPLITH);
1735 if (parent->layout == L_STACKED)
1736 con_set_layout(con, L_TABBED);
1737 else if (parent->layout == L_TABBED) {
1738 if (strcmp(toggle_mode, "all") == 0)
1739 con_set_layout(con, L_SPLITH);
1741 con_set_layout(con, parent->last_split_layout);
1742 } else if (parent->layout == L_SPLITH || parent->layout == L_SPLITV) {
1743 if (strcmp(toggle_mode, "all") == 0) {
1744 /* When toggling through all modes, we toggle between
1745 * splith/splitv, whereas normally we just directly jump to
1747 if (parent->layout == L_SPLITH)
1748 con_set_layout(con, L_SPLITV);
1750 con_set_layout(con, L_STACKED);
1752 con_set_layout(con, L_STACKED);
1759 * Callback which will be called when removing a child from the given con.
1760 * Kills the container if it is empty and replaces it with the child if there
1761 * is exactly one child.
1764 static void con_on_remove_child(Con *con) {
1765 DLOG("on_remove_child\n");
1767 /* Every container 'above' (in the hierarchy) the workspace content should
1768 * not be closed when the last child was removed */
1769 if (con->type == CT_OUTPUT ||
1770 con->type == CT_ROOT ||
1771 con->type == CT_DOCKAREA ||
1772 (con->parent != NULL && con->parent->type == CT_OUTPUT)) {
1773 DLOG("not handling, type = %d, name = %s\n", con->type, con->name);
1777 /* For workspaces, close them only if they're not visible anymore */
1778 if (con->type == CT_WORKSPACE) {
1779 if (TAILQ_EMPTY(&(con->focus_head)) && !workspace_is_visible(con)) {
1780 LOG("Closing old workspace (%p / %s), it is empty\n", con, con->name);
1781 yajl_gen gen = ipc_marshal_workspace_event("empty", con, NULL);
1782 tree_close_internal(con, DONT_KILL_WINDOW, false, false);
1784 const unsigned char *payload;
1786 y(get_buf, &payload, &length);
1787 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, (const char *)payload);
1794 con_force_split_parents_redraw(con);
1795 con->urgent = con_has_urgent_child(con);
1796 con_update_parents_urgency(con);
1798 /* TODO: check if this container would swallow any other client and
1799 * don’t close it automatically. */
1800 int children = con_num_children(con);
1801 if (children == 0) {
1802 DLOG("Container empty, closing\n");
1803 tree_close_internal(con, DONT_KILL_WINDOW, false, false);
1809 * Determines the minimum size of the given con by looking at its children (for
1810 * split/stacked/tabbed cons). Will be called when resizing floating cons
1813 Rect con_minimum_size(Con *con) {
1814 DLOG("Determining minimum size for con %p\n", con);
1816 if (con_is_leaf(con)) {
1817 DLOG("leaf node, returning 75x50\n");
1818 return (Rect){0, 0, 75, 50};
1821 if (con->type == CT_FLOATING_CON) {
1822 DLOG("floating con\n");
1823 Con *child = TAILQ_FIRST(&(con->nodes_head));
1824 return con_minimum_size(child);
1827 if (con->layout == L_STACKED || con->layout == L_TABBED) {
1828 uint32_t max_width = 0, max_height = 0, deco_height = 0;
1830 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1831 Rect min = con_minimum_size(child);
1832 deco_height += child->deco_rect.height;
1833 max_width = max(max_width, min.width);
1834 max_height = max(max_height, min.height);
1836 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
1837 max_width, max_height, deco_height);
1838 return (Rect){0, 0, max_width, max_height + deco_height};
1841 /* For horizontal/vertical split containers we sum up the width (h-split)
1842 * or height (v-split) and use the maximum of the height (h-split) or width
1843 * (v-split) as minimum size. */
1844 if (con_is_split(con)) {
1845 uint32_t width = 0, height = 0;
1847 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1848 Rect min = con_minimum_size(child);
1849 if (con->layout == L_SPLITH) {
1851 height = max(height, min.height);
1853 height += min.height;
1854 width = max(width, min.width);
1857 DLOG("split container, returning width = %d x height = %d\n", width, height);
1858 return (Rect){0, 0, width, height};
1861 ELOG("Unhandled case, type = %d, layout = %d, split = %d\n",
1862 con->type, con->layout, con_is_split(con));
1867 * Returns true if changing the focus to con would be allowed considering
1868 * the fullscreen focus constraints. Specifically, if a fullscreen container or
1869 * any of its descendants is focused, this function returns true if and only if
1870 * focusing con would mean that focus would still be visible on screen, i.e.,
1871 * the newly focused container would not be obscured by a fullscreen container.
1873 * In the simplest case, if a fullscreen container or any of its descendants is
1874 * fullscreen, this functions returns true if con is the fullscreen container
1875 * itself or any of its descendants, as this means focus wouldn't escape the
1876 * boundaries of the fullscreen container.
1878 * In case the fullscreen container is of type CF_OUTPUT, this function returns
1879 * true if con is on a different workspace, as focus wouldn't be obscured by
1880 * the fullscreen container that is constrained to a different workspace.
1882 * Note that this same logic can be applied to moving containers. If a
1883 * container can be focused under the fullscreen focus constraints, it can also
1884 * become a parent or sibling to the currently focused container.
1887 bool con_fullscreen_permits_focusing(Con *con) {
1888 /* No focus, no problem. */
1892 /* Find the first fullscreen ascendent. */
1894 while (fs && fs->fullscreen_mode == CF_NONE)
1897 /* fs must be non-NULL since the workspace con doesn’t have CF_NONE and
1898 * there always has to be a workspace con in the hierarchy. */
1900 /* The most common case is we hit the workspace level. In this
1901 * situation, changing focus is also harmless. */
1902 assert(fs->fullscreen_mode != CF_NONE);
1903 if (fs->type == CT_WORKSPACE)
1906 /* Allow it if the container itself is the fullscreen container. */
1910 /* If fullscreen is per-output, the focus being in a different workspace is
1911 * sufficient to guarantee that change won't leave fullscreen in bad shape. */
1912 if (fs->fullscreen_mode == CF_OUTPUT &&
1913 con_get_workspace(con) != con_get_workspace(fs)) {
1917 /* Allow it only if the container to be focused is contained within the
1918 * current fullscreen container. */
1920 if (con->parent == fs)
1925 /* Focusing con would hide it behind a fullscreen window, disallow it. */
1931 * Checks if the given container has an urgent child.
1934 bool con_has_urgent_child(Con *con) {
1937 if (con_is_leaf(con))
1940 /* We are not interested in floating windows since they can only be
1941 * attached to a workspace → nodes_head instead of focus_head */
1942 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1943 if (con_has_urgent_child(child))
1951 * Make all parent containers urgent if con is urgent or clear the urgent flag
1952 * of all parent containers if there are no more urgent children left.
1955 void con_update_parents_urgency(Con *con) {
1956 Con *parent = con->parent;
1958 /* Urgency hints should not be set on any container higher up in the
1959 * hierarchy than the workspace level. Unfortunately, since the content
1960 * container has type == CT_CON, that’s not easy to verify in the loop
1961 * below, so we need another condition to catch that case: */
1962 if (con->type == CT_WORKSPACE)
1965 bool new_urgency_value = con->urgent;
1966 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
1967 if (new_urgency_value) {
1968 parent->urgent = true;
1970 /* We can only reset the urgency when the parent
1971 * has no other urgent children */
1972 if (!con_has_urgent_child(parent))
1973 parent->urgent = false;
1975 parent = parent->parent;
1980 * Set urgency flag to the container, all the parent containers and the workspace.
1983 void con_set_urgency(Con *con, bool urgent) {
1984 if (urgent && focused == con) {
1985 DLOG("Ignoring urgency flag for current client\n");
1989 const bool old_urgent = con->urgent;
1991 if (con->urgency_timer == NULL) {
1992 con->urgent = urgent;
1994 DLOG("Discarding urgency WM_HINT because timer is running\n");
1999 gettimeofday(&con->window->urgent, NULL);
2001 con->window->urgent.tv_sec = 0;
2002 con->window->urgent.tv_usec = 0;
2006 con_update_parents_urgency(con);
2009 /* Set the urgency flag on the workspace, if a workspace could be found
2010 * (for dock clients, that is not the case). */
2011 if ((ws = con_get_workspace(con)) != NULL)
2012 workspace_update_urgent_flag(ws);
2014 if (con->urgent != old_urgent) {
2015 LOG("Urgency flag changed to %d\n", con->urgent);
2016 ipc_send_window_event("urgent", con);
2021 * Create a string representing the subtree under con.
2024 char *con_get_tree_representation(Con *con) {
2025 /* this code works as follows:
2026 * 1) create a string with the layout type (D/V/H/T/S) and an opening bracket
2027 * 2) append the tree representation of the children to the string
2028 * 3) add closing bracket
2030 * The recursion ends when we hit a leaf, in which case we return the
2031 * class_instance of the contained window.
2034 /* end of recursion */
2035 if (con_is_leaf(con)) {
2037 return sstrdup("nowin");
2039 if (!con->window->class_instance)
2040 return sstrdup("noinstance");
2042 return sstrdup(con->window->class_instance);
2046 /* 1) add the Layout type to buf */
2047 if (con->layout == L_DEFAULT)
2048 buf = sstrdup("D[");
2049 else if (con->layout == L_SPLITV)
2050 buf = sstrdup("V[");
2051 else if (con->layout == L_SPLITH)
2052 buf = sstrdup("H[");
2053 else if (con->layout == L_TABBED)
2054 buf = sstrdup("T[");
2055 else if (con->layout == L_STACKED)
2056 buf = sstrdup("S[");
2058 ELOG("BUG: Code not updated to account for new layout type\n");
2062 /* 2) append representation of children */
2064 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2065 char *child_txt = con_get_tree_representation(child);
2068 sasprintf(&tmp_buf, "%s%s%s", buf,
2069 (TAILQ_FIRST(&(con->nodes_head)) == child ? "" : " "), child_txt);
2075 /* 3) close the brackets */
2077 sasprintf(&complete_buf, "%s]", buf);
2080 return complete_buf;
2084 * Returns the container's title considering the current title format.
2087 i3String *con_parse_title_format(Con *con) {
2088 assert(con->title_format != NULL);
2090 i3Window *win = con->window;
2092 /* We need to ensure that we only escape the window title if pango
2093 * is used by the current font. */
2094 const bool pango_markup = font_is_pango();
2100 title = pango_escape_markup(con_get_tree_representation(con));
2101 class = sstrdup("i3-frame");
2102 instance = sstrdup("i3-frame");
2104 title = pango_escape_markup(sstrdup((win->name == NULL) ? "" : i3string_as_utf8(win->name)));
2105 class = pango_escape_markup(sstrdup((win->class_class == NULL) ? "" : win->class_class));
2106 instance = pango_escape_markup(sstrdup((win->class_instance == NULL) ? "" : win->class_instance));
2109 placeholder_t placeholders[] = {
2110 {.name = "%title", .value = title},
2111 {.name = "%class", .value = class},
2112 {.name = "%instance", .value = instance}};
2113 const size_t num = sizeof(placeholders) / sizeof(placeholder_t);
2115 char *formatted_str = format_placeholders(con->title_format, &placeholders[0], num);
2116 i3String *formatted = i3string_from_utf8(formatted_str);
2117 i3string_set_markup(formatted, pango_markup);
2118 FREE(formatted_str);
2120 for (size_t i = 0; i < num; i++) {
2121 FREE(placeholders[i].value);