2 * vim:ts=4:sw=4:expandtab
4 * i3 - an improved dynamic tiling window manager
5 * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
7 * con.c: Functions which deal with containers directly (creating containers,
8 * searching containers, getting specific properties from containers,
14 #include "yajl_utils.h"
16 static void con_on_remove_child(Con *con);
19 * force parent split containers to be redrawn
22 void con_force_split_parents_redraw(Con *con) {
25 while (parent != NULL && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
26 if (!con_is_leaf(parent)) {
27 FREE(parent->deco_render_params);
30 parent = parent->parent;
35 * Create a new container (and attach it to the given parent, if not NULL).
36 * This function only initializes the data structures.
39 Con *con_new_skeleton(Con *parent, i3Window *window) {
40 Con *new = scalloc(1, sizeof(Con));
41 new->on_remove_child = con_on_remove_child;
42 TAILQ_INSERT_TAIL(&all_cons, new, all_cons);
45 new->border_style = config.default_border;
46 new->current_border_width = -1;
48 new->depth = window->depth;
49 new->window->aspect_ratio = 0.0;
51 new->depth = root_depth;
53 DLOG("opening window\n");
55 TAILQ_INIT(&(new->floating_head));
56 TAILQ_INIT(&(new->nodes_head));
57 TAILQ_INIT(&(new->focus_head));
58 TAILQ_INIT(&(new->swallow_head));
59 TAILQ_INIT(&(new->marks_head));
62 con_attach(new, parent, false);
67 /* A wrapper for con_new_skeleton, to retain the old con_new behaviour
70 Con *con_new(Con *parent, i3Window *window) {
71 Con *new = con_new_skeleton(parent, window);
77 * Frees the specified container.
80 void con_free(Con *con) {
82 FREE(con->deco_render_params);
83 TAILQ_REMOVE(&all_cons, con, all_cons);
84 while (!TAILQ_EMPTY(&(con->swallow_head))) {
85 Match *match = TAILQ_FIRST(&(con->swallow_head));
86 TAILQ_REMOVE(&(con->swallow_head), match, matches);
90 while (!TAILQ_EMPTY(&(con->marks_head))) {
91 mark_t *mark = TAILQ_FIRST(&(con->marks_head));
92 TAILQ_REMOVE(&(con->marks_head), mark, marks);
97 DLOG("con %p freed\n", con);
100 static void _con_attach(Con *con, Con *parent, Con *previous, bool ignore_focus) {
101 con->parent = parent;
103 Con *current = previous;
104 struct nodes_head *nodes_head = &(parent->nodes_head);
105 struct focus_head *focus_head = &(parent->focus_head);
107 /* Workspaces are handled differently: they need to be inserted at the
109 if (con->type == CT_WORKSPACE) {
110 DLOG("it's a workspace. num = %d\n", con->num);
111 if (con->num == -1 || TAILQ_EMPTY(nodes_head)) {
112 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
114 current = TAILQ_FIRST(nodes_head);
115 if (con->num < current->num) {
116 /* we need to insert the container at the beginning */
117 TAILQ_INSERT_HEAD(nodes_head, con, nodes);
119 while (current->num != -1 && con->num > current->num) {
120 current = TAILQ_NEXT(current, nodes);
121 if (current == TAILQ_END(nodes_head)) {
126 /* we need to insert con after current, if current is not NULL */
128 TAILQ_INSERT_BEFORE(current, con, nodes);
130 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
133 goto add_to_focus_head;
136 if (con->type == CT_FLOATING_CON) {
137 DLOG("Inserting into floating containers\n");
138 TAILQ_INSERT_TAIL(&(parent->floating_head), con, floating_windows);
141 /* Get the first tiling container in focus stack */
142 TAILQ_FOREACH(loop, &(parent->focus_head), focused) {
143 if (loop->type == CT_FLOATING_CON)
150 /* When the container is not a split container (but contains a window)
151 * and is attached to a workspace, we check if the user configured a
152 * workspace_layout. This is done in workspace_attach_to, which will
153 * provide us with the container to which we should attach (either the
154 * workspace or a new split container with the configured
157 if (con->window != NULL &&
158 parent->type == CT_WORKSPACE &&
159 parent->workspace_layout != L_DEFAULT) {
160 DLOG("Parent is a workspace. Applying default layout...\n");
161 Con *target = workspace_attach_to(parent);
163 /* Attach the original con to this new split con instead */
164 nodes_head = &(target->nodes_head);
165 focus_head = &(target->focus_head);
166 con->parent = target;
172 /* Insert the container after the tiling container, if found.
173 * When adding to a CT_OUTPUT, just append one after another. */
174 if (current != NULL && parent->type != CT_OUTPUT) {
175 DLOG("Inserting con = %p after con %p\n", con, current);
176 TAILQ_INSERT_AFTER(nodes_head, current, con, nodes);
178 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
182 /* We insert to the TAIL because con_focus() will correct this.
183 * This way, we have the option to insert Cons without having
185 TAILQ_INSERT_TAIL(focus_head, con, focused);
186 con_force_split_parents_redraw(con);
190 * Attaches the given container to the given parent. This happens when moving
191 * a container or when inserting a new container at a specific place in the
194 * ignore_focus is to just insert the Con at the end (useful when creating a
195 * new split container *around* some containers, that is, detaching and
196 * attaching them in order without wanting to mess with the focus in between).
199 void con_attach(Con *con, Con *parent, bool ignore_focus) {
200 _con_attach(con, parent, NULL, ignore_focus);
204 * Detaches the given container from its current parent
207 void con_detach(Con *con) {
208 con_force_split_parents_redraw(con);
209 if (con->type == CT_FLOATING_CON) {
210 TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
211 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
213 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
214 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
219 * Sets input focus to the given container. Will be updated in X11 in the next
220 * run of x_push_changes().
223 void con_focus(Con *con) {
225 DLOG("con_focus = %p\n", con);
227 /* 1: set focused-pointer to the new con */
228 /* 2: exchange the position of the container in focus stack of the parent all the way up */
229 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
230 TAILQ_INSERT_HEAD(&(con->parent->focus_head), con, focused);
231 if (con->parent->parent != NULL)
232 con_focus(con->parent);
235 /* We can't blindly reset non-leaf containers since they might have
236 * other urgent children. Therefore we only reset leafs and propagate
237 * the changes upwards via con_update_parents_urgency() which does proper
238 * checks before resetting the urgency.
240 if (con->urgent && con_is_leaf(con)) {
241 con_set_urgency(con, false);
242 con_update_parents_urgency(con);
243 workspace_update_urgent_flag(con_get_workspace(con));
244 ipc_send_window_event("urgent", con);
249 * Closes the given container.
252 void con_close(Con *con, kill_window_t kill_window) {
254 DLOG("Closing con = %p.\n", con);
256 /* We never close output or root containers. */
257 if (con->type == CT_OUTPUT || con->type == CT_ROOT) {
258 DLOG("con = %p is of type %d, not closing anything.\n", con, con->type);
262 if (con->type == CT_WORKSPACE) {
263 DLOG("con = %p is a workspace, closing all children instead.\n", con);
264 Con *child, *nextchild;
265 for (child = TAILQ_FIRST(&(con->focus_head)); child;) {
266 nextchild = TAILQ_NEXT(child, focused);
267 DLOG("killing child = %p.\n", child);
268 tree_close_internal(child, kill_window, false, false);
275 tree_close_internal(con, kill_window, false, false);
279 * Returns true when this node is a leaf node (has no children)
282 bool con_is_leaf(Con *con) {
283 return TAILQ_EMPTY(&(con->nodes_head));
287 * Returns true when this con is a leaf node with a managed X11 window (e.g.,
288 * excluding dock containers)
290 bool con_has_managed_window(Con *con) {
291 return (con != NULL && con->window != NULL && con->window->id != XCB_WINDOW_NONE && con_get_workspace(con) != NULL);
295 * Returns true if this node has regular or floating children.
298 bool con_has_children(Con *con) {
299 return (!con_is_leaf(con) || !TAILQ_EMPTY(&(con->floating_head)));
303 * Returns true if a container should be considered split.
306 bool con_is_split(Con *con) {
307 if (con_is_leaf(con))
310 switch (con->layout) {
321 * This will only return true for containers which have some parent with
322 * a tabbed / stacked parent of which they are not the currently focused child.
325 bool con_is_hidden(Con *con) {
328 /* ascend to the workspace level and memorize the highest-up container
329 * which is stacked or tabbed. */
330 while (current != NULL && current->type != CT_WORKSPACE) {
331 Con *parent = current->parent;
332 if (parent != NULL && (parent->layout == L_TABBED || parent->layout == L_STACKED)) {
333 if (TAILQ_FIRST(&(parent->focus_head)) != current)
344 * Returns whether the container or any of its children is sticky.
347 bool con_is_sticky(Con *con) {
352 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
353 if (con_is_sticky(child))
361 * Returns true if this node accepts a window (if the node swallows windows,
362 * it might already have swallowed enough and cannot hold any more).
365 bool con_accepts_window(Con *con) {
366 /* 1: workspaces never accept direct windows */
367 if (con->type == CT_WORKSPACE)
370 if (con_is_split(con)) {
371 DLOG("container %p does not accept windows, it is a split container.\n", con);
375 /* TODO: if this is a swallowing container, we need to check its max_clients */
376 return (con->window == NULL);
380 * Gets the output container (first container with CT_OUTPUT in hierarchy) this
384 Con *con_get_output(Con *con) {
386 while (result != NULL && result->type != CT_OUTPUT)
387 result = result->parent;
388 /* We must be able to get an output because focus can never be set higher
389 * in the tree (root node cannot be focused). */
390 assert(result != NULL);
395 * Gets the workspace container this node is on.
398 Con *con_get_workspace(Con *con) {
400 while (result != NULL && result->type != CT_WORKSPACE)
401 result = result->parent;
406 * Searches parents of the given 'con' until it reaches one with the specified
407 * 'orientation'. Aborts when it comes across a floating_con.
410 Con *con_parent_with_orientation(Con *con, orientation_t orientation) {
411 DLOG("Searching for parent of Con %p with orientation %d\n", con, orientation);
412 Con *parent = con->parent;
413 if (parent->type == CT_FLOATING_CON)
415 while (con_orientation(parent) != orientation) {
416 DLOG("Need to go one level further up\n");
417 parent = parent->parent;
418 /* Abort when we reach a floating con, or an output con */
420 (parent->type == CT_FLOATING_CON ||
421 parent->type == CT_OUTPUT ||
422 (parent->parent && parent->parent->type == CT_OUTPUT)))
427 DLOG("Result: %p\n", parent);
432 * helper data structure for the breadth-first-search in
433 * con_get_fullscreen_con()
439 TAILQ_ENTRY(bfs_entry)
444 * Returns the first fullscreen node below this node.
447 Con *con_get_fullscreen_con(Con *con, fullscreen_mode_t fullscreen_mode) {
448 Con *current, *child;
450 /* TODO: is breadth-first-search really appropriate? (check as soon as
451 * fullscreen levels and fullscreen for containers is implemented) */
452 TAILQ_HEAD(bfs_head, bfs_entry)
453 bfs_head = TAILQ_HEAD_INITIALIZER(bfs_head);
455 struct bfs_entry *entry = smalloc(sizeof(struct bfs_entry));
457 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
459 while (!TAILQ_EMPTY(&bfs_head)) {
460 entry = TAILQ_FIRST(&bfs_head);
461 current = entry->con;
462 if (current != con && current->fullscreen_mode == fullscreen_mode) {
463 /* empty the queue */
464 while (!TAILQ_EMPTY(&bfs_head)) {
465 entry = TAILQ_FIRST(&bfs_head);
466 TAILQ_REMOVE(&bfs_head, entry, entries);
472 TAILQ_REMOVE(&bfs_head, entry, entries);
475 TAILQ_FOREACH(child, &(current->nodes_head), nodes) {
476 entry = smalloc(sizeof(struct bfs_entry));
478 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
481 TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
482 entry = smalloc(sizeof(struct bfs_entry));
484 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
492 * Returns true if the container is internal, such as __i3_scratch
495 bool con_is_internal(Con *con) {
496 return (con->name[0] == '_' && con->name[1] == '_');
500 * Returns true if the node is floating.
503 bool con_is_floating(Con *con) {
505 DLOG("checking if con %p is floating\n", con);
506 return (con->floating >= FLOATING_AUTO_ON);
510 * Returns true if the container is a docked container.
513 bool con_is_docked(Con *con) {
514 if (con->parent == NULL)
517 if (con->parent->type == CT_DOCKAREA)
520 return con_is_docked(con->parent);
524 * Checks if the given container is either floating or inside some floating
525 * container. It returns the FLOATING_CON container.
528 Con *con_inside_floating(Con *con) {
530 if (con->type == CT_FLOATING_CON)
533 if (con->floating >= FLOATING_AUTO_ON)
536 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
539 return con_inside_floating(con->parent);
543 * Checks if the given container is inside a focused container.
546 bool con_inside_focused(Con *con) {
551 return con_inside_focused(con->parent);
555 * Checks if the container has the given parent as an actual parent.
558 bool con_has_parent(Con *con, Con *parent) {
559 Con *current = con->parent;
560 if (current == NULL) {
564 if (current == parent) {
568 return con_has_parent(current, parent);
572 * Returns the container with the given client window ID or NULL if no such
576 Con *con_by_window_id(xcb_window_t window) {
578 TAILQ_FOREACH(con, &all_cons, all_cons)
579 if (con->window != NULL && con->window->id == window)
585 * Returns the container with the given container ID or NULL if no such
589 Con *con_by_con_id(long target) {
591 TAILQ_FOREACH(con, &all_cons, all_cons) {
592 if (con == (Con *)target) {
601 * Returns the container with the given frame ID or NULL if no such container
605 Con *con_by_frame_id(xcb_window_t frame) {
607 TAILQ_FOREACH(con, &all_cons, all_cons)
608 if (con->frame.id == frame)
614 * Returns the container with the given mark or NULL if no such container
618 Con *con_by_mark(const char *mark) {
620 TAILQ_FOREACH(con, &all_cons, all_cons) {
621 if (con_has_mark(con, mark))
629 * Returns true if and only if the given containers holds the mark.
632 bool con_has_mark(Con *con, const char *mark) {
634 TAILQ_FOREACH(current, &(con->marks_head), marks) {
635 if (strcmp(current->name, mark) == 0)
643 * Toggles the mark on a container.
644 * If the container already has this mark, the mark is removed.
645 * Otherwise, the mark is assigned to the container.
648 void con_mark_toggle(Con *con, const char *mark, mark_mode_t mode) {
650 DLOG("Toggling mark \"%s\" on con = %p.\n", mark, con);
652 if (con_has_mark(con, mark)) {
653 con_unmark(con, mark);
655 con_mark(con, mark, mode);
660 * Assigns a mark to the container.
663 void con_mark(Con *con, const char *mark, mark_mode_t mode) {
665 DLOG("Setting mark \"%s\" on con = %p.\n", mark, con);
667 con_unmark(NULL, mark);
668 if (mode == MM_REPLACE) {
669 DLOG("Removing all existing marks on con = %p.\n", con);
672 while (!TAILQ_EMPTY(&(con->marks_head))) {
673 current = TAILQ_FIRST(&(con->marks_head));
674 con_unmark(con, current->name);
678 mark_t *new = scalloc(1, sizeof(mark_t));
679 new->name = sstrdup(mark);
680 TAILQ_INSERT_TAIL(&(con->marks_head), new, marks);
681 ipc_send_window_event("mark", con);
683 con->mark_changed = true;
687 * Removes marks from containers.
688 * If con is NULL, all containers are considered.
689 * If name is NULL, this removes all existing marks.
690 * Otherwise, it will only remove the given mark (if it is present).
693 void con_unmark(Con *con, const char *name) {
696 DLOG("Unmarking all containers.\n");
697 TAILQ_FOREACH(current, &all_cons, all_cons) {
698 if (con != NULL && current != con)
701 if (TAILQ_EMPTY(&(current->marks_head)))
705 while (!TAILQ_EMPTY(&(current->marks_head))) {
706 mark = TAILQ_FIRST(&(current->marks_head));
708 TAILQ_REMOVE(&(current->marks_head), mark, marks);
711 ipc_send_window_event("mark", current);
714 current->mark_changed = true;
717 DLOG("Removing mark \"%s\".\n", name);
718 current = (con == NULL) ? con_by_mark(name) : con;
719 if (current == NULL) {
720 DLOG("No container found with this mark, so there is nothing to do.\n");
724 DLOG("Found mark on con = %p. Removing it now.\n", current);
725 current->mark_changed = true;
728 TAILQ_FOREACH(mark, &(current->marks_head), marks) {
729 if (strcmp(mark->name, name) != 0)
733 TAILQ_REMOVE(&(current->marks_head), mark, marks);
736 ipc_send_window_event("mark", current);
743 * Returns the first container below 'con' which wants to swallow this window
747 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
750 //DLOG("searching con for window %p starting at con %p\n", window, con);
751 //DLOG("class == %s\n", window->class_class);
753 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
754 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
755 if (!match_matches_window(match, window))
757 if (store_match != NULL)
758 *store_match = match;
761 Con *result = con_for_window(child, window, store_match);
766 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
767 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
768 if (!match_matches_window(match, window))
770 if (store_match != NULL)
771 *store_match = match;
774 Con *result = con_for_window(child, window, store_match);
783 * Returns the number of children of this container.
786 int con_num_children(Con *con) {
790 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
797 * Returns the number of visible non-floating children of this container.
798 * For example, if the container contains a hsplit which has two children,
799 * this will return 2 instead of 1.
801 int con_num_visible_children(Con *con) {
807 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
808 /* Visible leaf nodes are a child. */
809 if (!con_is_hidden(current) && con_is_leaf(current))
811 /* All other containers need to be recursed. */
813 children += con_num_visible_children(current);
820 * Count the number of windows (i.e., leaf containers).
823 int con_num_windows(Con *con) {
827 if (con_has_managed_window(con))
832 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
833 num += con_num_windows(current);
840 * Updates the percent attribute of the children of the given container. This
841 * function needs to be called when a window is added or removed from a
845 void con_fix_percent(Con *con) {
847 int children = con_num_children(con);
849 // calculate how much we have distributed and how many containers
850 // with a percentage set we have
852 int children_with_percent = 0;
853 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
854 if (child->percent > 0.0) {
855 total += child->percent;
856 ++children_with_percent;
860 // if there were children without a percentage set, set to a value that
861 // will make those children proportional to all others
862 if (children_with_percent != children) {
863 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
864 if (child->percent <= 0.0) {
865 if (children_with_percent == 0) {
866 total += (child->percent = 1.0);
868 total += (child->percent = total / children_with_percent);
874 // if we got a zero, just distribute the space equally, otherwise
875 // distribute according to the proportions we got
877 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
878 child->percent = 1.0 / children;
880 } else if (total != 1.0) {
881 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
882 child->percent /= total;
888 * Toggles fullscreen mode for the given container. If there already is a
889 * fullscreen container on this workspace, fullscreen will be disabled and then
890 * enabled for the container the user wants to have in fullscreen mode.
893 void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
894 if (con->type == CT_WORKSPACE) {
895 DLOG("You cannot make a workspace fullscreen.\n");
899 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
901 if (con->fullscreen_mode == CF_NONE)
902 con_enable_fullscreen(con, fullscreen_mode);
904 con_disable_fullscreen(con);
908 * Sets the specified fullscreen mode for the given container, sends the
909 * “fullscreen_mode” event and changes the XCB fullscreen property of the
910 * container’s window, if any.
913 static void con_set_fullscreen_mode(Con *con, fullscreen_mode_t fullscreen_mode) {
914 con->fullscreen_mode = fullscreen_mode;
916 DLOG("mode now: %d\n", con->fullscreen_mode);
918 /* Send an ipc window "fullscreen_mode" event */
919 ipc_send_window_event("fullscreen_mode", con);
921 /* update _NET_WM_STATE if this container has a window */
922 /* TODO: when a window is assigned to a container which is already
923 * fullscreened, this state needs to be pushed to the client, too */
924 if (con->window == NULL)
927 if (con->fullscreen_mode != CF_NONE) {
928 DLOG("Setting _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
929 xcb_add_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
931 DLOG("Removing _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
932 xcb_remove_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
937 * Enables fullscreen mode for the given container, if necessary.
939 * If the container’s mode is already CF_OUTPUT or CF_GLOBAL, the container is
940 * kept fullscreen but its mode is set to CF_GLOBAL and CF_OUTPUT,
943 * Other fullscreen containers will be disabled first, if they hide the new
947 void con_enable_fullscreen(Con *con, fullscreen_mode_t fullscreen_mode) {
948 if (con->type == CT_WORKSPACE) {
949 DLOG("You cannot make a workspace fullscreen.\n");
953 assert(fullscreen_mode == CF_GLOBAL || fullscreen_mode == CF_OUTPUT);
955 if (fullscreen_mode == CF_GLOBAL)
956 DLOG("enabling global fullscreen for %p / %s\n", con, con->name);
958 DLOG("enabling fullscreen for %p / %s\n", con, con->name);
960 if (con->fullscreen_mode == fullscreen_mode) {
961 DLOG("fullscreen already enabled for %p / %s\n", con, con->name);
965 Con *con_ws = con_get_workspace(con);
967 /* Disable any fullscreen container that would conflict the new one. */
968 Con *fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
969 if (fullscreen == NULL)
970 fullscreen = con_get_fullscreen_con(con_ws, CF_OUTPUT);
971 if (fullscreen != NULL)
972 con_disable_fullscreen(fullscreen);
974 /* Set focus to new fullscreen container. Unless in global fullscreen mode
975 * and on another workspace restore focus afterwards.
976 * Switch to the container’s workspace if mode is global. */
977 Con *cur_ws = con_get_workspace(focused);
978 Con *old_focused = focused;
979 if (fullscreen_mode == CF_GLOBAL && cur_ws != con_ws)
980 workspace_show(con_ws);
982 if (fullscreen_mode != CF_GLOBAL && cur_ws != con_ws)
983 con_focus(old_focused);
985 con_set_fullscreen_mode(con, fullscreen_mode);
989 * Disables fullscreen mode for the given container regardless of the mode, if
993 void con_disable_fullscreen(Con *con) {
994 if (con->type == CT_WORKSPACE) {
995 DLOG("You cannot make a workspace fullscreen.\n");
999 DLOG("disabling fullscreen for %p / %s\n", con, con->name);
1001 if (con->fullscreen_mode == CF_NONE) {
1002 DLOG("fullscreen already disabled for %p / %s\n", con, con->name);
1006 con_set_fullscreen_mode(con, CF_NONE);
1009 static bool _con_move_to_con(Con *con, Con *target, bool behind_focused, bool fix_coordinates, bool dont_warp, bool ignore_focus, bool fix_percentage) {
1010 Con *orig_target = target;
1012 /* Prevent moving if this would violate the fullscreen focus restrictions. */
1013 Con *target_ws = con_get_workspace(target);
1014 if (!con_fullscreen_permits_focusing(target_ws)) {
1015 LOG("Cannot move out of a fullscreen container.\n");
1019 if (con_is_floating(con)) {
1020 DLOG("Container is floating, using parent instead.\n");
1024 Con *source_ws = con_get_workspace(con);
1026 if (con->type == CT_WORKSPACE) {
1027 /* Re-parent all of the old workspace's floating windows. */
1029 while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
1030 child = TAILQ_FIRST(&(source_ws->floating_head));
1031 con_move_to_workspace(child, target_ws, true, true, false);
1034 /* If there are no non-floating children, ignore the workspace. */
1035 if (con_is_leaf(con))
1038 con = workspace_encapsulate(con);
1040 ELOG("Workspace failed to move its contents into a container!\n");
1045 /* Save the urgency state so that we can restore it. */
1046 bool urgent = con->urgent;
1048 /* Save the current workspace. So we can call workspace_show() by the end
1049 * of this function. */
1050 Con *current_ws = con_get_workspace(focused);
1052 Con *source_output = con_get_output(con),
1053 *dest_output = con_get_output(target_ws);
1055 /* 1: save the container which is going to be focused after the current
1056 * container is moved away */
1057 Con *focus_next = con_next_focused(con);
1059 /* 2: we go up one level, but only when target is a normal container */
1060 if (target->type != CT_WORKSPACE) {
1061 DLOG("target originally = %p / %s / type %d\n", target, target->name, target->type);
1062 target = target->parent;
1065 /* 3: if the target container is floating, we get the workspace instead.
1066 * Only tiling windows need to get inserted next to the current container.
1068 Con *floatingcon = con_inside_floating(target);
1069 if (floatingcon != NULL) {
1070 DLOG("floatingcon, going up even further\n");
1071 target = floatingcon->parent;
1074 if (con->type == CT_FLOATING_CON) {
1075 Con *ws = con_get_workspace(target);
1076 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
1080 if (source_output != dest_output) {
1081 /* Take the relative coordinates of the current output, then add them
1082 * to the coordinate space of the correct output */
1083 if (fix_coordinates && con->type == CT_FLOATING_CON) {
1084 floating_fix_coordinates(con, &(source_output->rect), &(dest_output->rect));
1086 DLOG("Not fixing coordinates, fix_coordinates flag = %d\n", fix_coordinates);
1088 /* If moving to a visible workspace, call show so it can be considered
1089 * focused. Must do before attaching because workspace_show checks to see
1090 * if focused container is in its area. */
1091 if (!ignore_focus && workspace_is_visible(target_ws)) {
1092 workspace_show(target_ws);
1094 /* Don’t warp if told so (when dragging floating windows with the
1095 * mouse for example) */
1097 x_set_warp_to(NULL);
1099 x_set_warp_to(&(con->rect));
1103 /* If moving a fullscreen container and the destination already has a
1104 * fullscreen window on it, un-fullscreen the target's fullscreen con. */
1105 Con *fullscreen = con_get_fullscreen_con(target_ws, CF_OUTPUT);
1106 if (con->fullscreen_mode != CF_NONE && fullscreen != NULL) {
1107 con_toggle_fullscreen(fullscreen, CF_OUTPUT);
1111 DLOG("Re-attaching container to %p / %s\n", target, target->name);
1112 /* 4: re-attach the con to the parent of this focused container */
1113 Con *parent = con->parent;
1115 _con_attach(con, target, behind_focused ? NULL : orig_target, !behind_focused);
1117 /* 5: fix the percentages */
1118 if (fix_percentage) {
1119 con_fix_percent(parent);
1121 con_fix_percent(target);
1124 /* 6: focus the con on the target workspace, but only within that
1125 * workspace, that is, don’t move focus away if the target workspace is
1127 * We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
1128 * we don’t focus when there is a fullscreen con on that workspace. We
1129 * also don't do it if the caller requested to ignore focus. */
1130 if (!ignore_focus && !con_is_internal(target_ws) && !fullscreen) {
1131 /* We need to save the focused workspace on the output in case the
1132 * new workspace is hidden and it's necessary to immediately switch
1133 * back to the originally-focused workspace. */
1134 Con *old_focus = TAILQ_FIRST(&(output_get_content(dest_output)->focus_head));
1135 con_focus(con_descend_focused(con));
1137 /* Restore focus if the output's focused workspace has changed. */
1138 if (con_get_workspace(focused) != old_focus)
1139 con_focus(old_focus);
1142 /* 7: when moving to another workspace, we leave the focus on the current
1143 * workspace. (see also #809) */
1145 /* Descend focus stack in case focus_next is a workspace which can
1146 * occur if we move to the same workspace. Also show current workspace
1147 * to ensure it is focused. */
1148 if (!ignore_focus) {
1149 workspace_show(current_ws);
1151 DLOG("x_set_warp_to(NULL) because dont_warp is set\n");
1152 x_set_warp_to(NULL);
1156 /* Set focus only if con was on current workspace before moving.
1157 * Otherwise we would give focus to some window on different workspace. */
1158 if (!ignore_focus && source_ws == current_ws)
1159 con_focus(con_descend_focused(focus_next));
1161 /* 8. If anything within the container is associated with a startup sequence,
1162 * delete it so child windows won't be created on the old workspace. */
1163 struct Startup_Sequence *sequence;
1164 xcb_get_property_cookie_t cookie;
1165 xcb_get_property_reply_t *startup_id_reply;
1167 if (!con_is_leaf(con)) {
1169 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1173 cookie = xcb_get_property(conn, false, child->window->id,
1174 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1175 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1177 sequence = startup_sequence_get(child->window, startup_id_reply, true);
1178 if (sequence != NULL)
1179 startup_sequence_delete(sequence);
1184 cookie = xcb_get_property(conn, false, con->window->id,
1185 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1186 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1188 sequence = startup_sequence_get(con->window, startup_id_reply, true);
1189 if (sequence != NULL)
1190 startup_sequence_delete(sequence);
1193 /* 9. If the container was marked urgent, move the urgency hint. */
1195 workspace_update_urgent_flag(source_ws);
1196 con_set_urgency(con, true);
1199 /* Ensure the container will be redrawn. */
1200 FREE(con->deco_render_params);
1202 CALL(parent, on_remove_child);
1204 ipc_send_window_event("move", con);
1205 ewmh_update_wm_desktop();
1210 * Moves the given container to the given mark.
1213 bool con_move_to_mark(Con *con, const char *mark) {
1214 Con *target = con_by_mark(mark);
1215 if (target == NULL) {
1216 DLOG("found no container with mark \"%s\"\n", mark);
1220 /* For floating target containers, we just send the window to the same workspace. */
1221 if (con_is_floating(target)) {
1222 DLOG("target container is floating, moving container to target's workspace.\n");
1223 con_move_to_workspace(con, con_get_workspace(target), true, false, false);
1227 if (con->type == CT_WORKSPACE) {
1228 DLOG("target container is a workspace, simply moving the container there.\n");
1229 con_move_to_workspace(con, target, true, false, false);
1233 /* For split containers, we use the currently focused container within it.
1234 * This allows setting marks on, e.g., tabbed containers which will move
1235 * con to a new tab behind the focused tab. */
1236 if (con_is_split(target)) {
1237 DLOG("target is a split container, descending to the currently focused child.\n");
1238 target = TAILQ_FIRST(&(target->focus_head));
1241 if (con == target || con_has_parent(target, con)) {
1242 DLOG("cannot move the container to or inside itself, aborting.\n");
1246 return _con_move_to_con(con, target, false, true, false, false, true);
1250 * Moves the given container to the currently focused container on the given
1253 * The fix_coordinates flag will translate the current coordinates (offset from
1254 * the monitor position basically) to appropriate coordinates on the
1255 * destination workspace.
1256 * Not enabling this behaviour comes in handy when this function gets called by
1257 * floating_maybe_reassign_ws, which will only "move" a floating window when it
1258 * *already* changed its coordinates to a different output.
1260 * The dont_warp flag disables pointer warping and will be set when this
1261 * function is called while dragging a floating window.
1263 * If ignore_focus is set, the container will be moved without modifying focus
1266 * TODO: is there a better place for this function?
1269 void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
1270 assert(workspace->type == CT_WORKSPACE);
1272 Con *source_ws = con_get_workspace(con);
1273 if (workspace == source_ws) {
1274 DLOG("Not moving, already there\n");
1278 Con *target = con_descend_focused(workspace);
1279 _con_move_to_con(con, target, true, fix_coordinates, dont_warp, ignore_focus, true);
1283 * Moves the given container to the currently focused container on the
1284 * visible workspace on the given output.
1287 void con_move_to_output(Con *con, Output *output, bool fix_coordinates) {
1289 GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1291 DLOG("Moving con %p to output %s\n", con, output_primary_name(output));
1292 con_move_to_workspace(con, ws, fix_coordinates, false, false);
1296 * Moves the given container to the currently focused container on the
1297 * visible workspace on the output specified by the given name.
1298 * The current output for the container is used to resolve relative names
1299 * such as left, right, up, down.
1302 bool con_move_to_output_name(Con *con, const char *name, bool fix_coordinates) {
1303 Output *current_output = get_output_for_con(con);
1304 assert(current_output != NULL);
1306 Output *output = get_output_from_string(current_output, name);
1307 if (output == NULL) {
1308 ELOG("Could not find output \"%s\"\n", name);
1312 con_move_to_output(con, output, fix_coordinates);
1317 * Returns the orientation of the given container (for stacked containers,
1318 * vertical orientation is used regardless of the actual orientation of the
1322 orientation_t con_orientation(Con *con) {
1323 switch (con->layout) {
1325 /* stacking containers behave like they are in vertical orientation */
1330 /* tabbed containers behave like they are in vertical orientation */
1335 DLOG("Someone called con_orientation() on a con with L_DEFAULT, this is a bug in the code.\n");
1341 DLOG("con_orientation() called on dockarea/output (%d) container %p\n", con->layout, con);
1346 DLOG("con_orientation() ran into default\n");
1352 * Returns the container which will be focused next when the given container
1353 * is not available anymore. Called in tree_close_internal and con_move_to_workspace
1354 * to properly restore focus.
1357 Con *con_next_focused(Con *con) {
1359 /* floating containers are attached to a workspace, so we focus either the
1360 * next floating container (if any) or the workspace itself. */
1361 if (con->type == CT_FLOATING_CON) {
1362 DLOG("selecting next for CT_FLOATING_CON\n");
1363 next = TAILQ_NEXT(con, floating_windows);
1364 DLOG("next = %p\n", next);
1366 next = TAILQ_PREV(con, floating_head, floating_windows);
1367 DLOG("using prev, next = %p\n", next);
1370 Con *ws = con_get_workspace(con);
1372 DLOG("no more floating containers for next = %p, restoring workspace focus\n", next);
1373 while (next != TAILQ_END(&(ws->focus_head)) && !TAILQ_EMPTY(&(next->focus_head))) {
1374 next = TAILQ_FIRST(&(next->focus_head));
1376 DLOG("skipping container itself, we want the next client\n");
1377 next = TAILQ_NEXT(next, focused);
1380 if (next == TAILQ_END(&(ws->focus_head))) {
1381 DLOG("Focus list empty, returning ws\n");
1385 /* Instead of returning the next CT_FLOATING_CON, we descend it to
1386 * get an actual window to focus. */
1387 next = con_descend_focused(next);
1392 /* dock clients cannot be focused, so we focus the workspace instead */
1393 if (con->parent->type == CT_DOCKAREA) {
1394 DLOG("selecting workspace for dock client\n");
1395 return con_descend_focused(output_get_content(con->parent->parent));
1398 /* if 'con' is not the first entry in the focus stack, use the first one as
1399 * it’s currently focused already */
1400 Con *first = TAILQ_FIRST(&(con->parent->focus_head));
1402 DLOG("Using first entry %p\n", first);
1405 /* try to focus the next container on the same level as this one or fall
1406 * back to its parent */
1407 if (!(next = TAILQ_NEXT(con, focused))) {
1412 /* now go down the focus stack as far as
1413 * possible, excluding the current container */
1414 while (!TAILQ_EMPTY(&(next->focus_head)) && TAILQ_FIRST(&(next->focus_head)) != con) {
1415 next = TAILQ_FIRST(&(next->focus_head));
1422 * Get the next/previous container in the specified orientation. This may
1423 * travel up until it finds a container with suitable orientation.
1426 Con *con_get_next(Con *con, char way, orientation_t orientation) {
1427 DLOG("con_get_next(way=%c, orientation=%d)\n", way, orientation);
1428 /* 1: get the first parent with the same orientation */
1430 while (con_orientation(cur->parent) != orientation) {
1431 DLOG("need to go one level further up\n");
1432 if (cur->parent->type == CT_WORKSPACE) {
1433 LOG("that's a workspace, we can't go further up\n");
1439 /* 2: chose next (or previous) */
1442 next = TAILQ_NEXT(cur, nodes);
1443 /* if we are at the end of the list, we need to wrap */
1444 if (next == TAILQ_END(&(parent->nodes_head)))
1447 next = TAILQ_PREV(cur, nodes_head, nodes);
1448 /* if we are at the end of the list, we need to wrap */
1449 if (next == TAILQ_END(&(cur->nodes_head)))
1452 DLOG("next = %p\n", next);
1458 * Returns the focused con inside this client, descending the tree as far as
1459 * possible. This comes in handy when attaching a con to a workspace at the
1460 * currently focused position, for example.
1463 Con *con_descend_focused(Con *con) {
1465 while (next != focused && !TAILQ_EMPTY(&(next->focus_head)))
1466 next = TAILQ_FIRST(&(next->focus_head));
1471 * Returns the focused con inside this client, descending the tree as far as
1472 * possible. This comes in handy when attaching a con to a workspace at the
1473 * currently focused position, for example.
1475 * Works like con_descend_focused but considers only tiling cons.
1478 Con *con_descend_tiling_focused(Con *con) {
1482 if (next == focused)
1486 TAILQ_FOREACH(child, &(next->focus_head), focused) {
1487 if (child->type == CT_FLOATING_CON)
1493 } while (before != next && next != focused);
1498 * Returns the leftmost, rightmost, etc. container in sub-tree. For example, if
1499 * direction is D_LEFT, then we return the rightmost container and if direction
1500 * is D_RIGHT, we return the leftmost container. This is because if we are
1501 * moving D_LEFT, and thus want the rightmost container.
1504 Con *con_descend_direction(Con *con, direction_t direction) {
1507 int orientation = con_orientation(con);
1508 DLOG("con_descend_direction(%p, orientation %d, direction %d)\n", con, orientation, direction);
1509 if (direction == D_LEFT || direction == D_RIGHT) {
1510 if (orientation == HORIZ) {
1511 /* If the direction is horizontal, we can use either the first
1512 * (D_RIGHT) or the last con (D_LEFT) */
1513 if (direction == D_RIGHT)
1514 most = TAILQ_FIRST(&(con->nodes_head));
1516 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1517 } else if (orientation == VERT) {
1518 /* Wrong orientation. We use the last focused con. Within that con,
1519 * we recurse to chose the left/right con or at least the last
1521 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1522 if (current->type != CT_FLOATING_CON) {
1528 /* If the con has no orientation set, it’s not a split container
1529 * but a container with a client window, so stop recursing */
1534 if (direction == D_UP || direction == D_DOWN) {
1535 if (orientation == VERT) {
1536 /* If the direction is vertical, we can use either the first
1537 * (D_DOWN) or the last con (D_UP) */
1538 if (direction == D_UP)
1539 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1541 most = TAILQ_FIRST(&(con->nodes_head));
1542 } else if (orientation == HORIZ) {
1543 /* Wrong orientation. We use the last focused con. Within that con,
1544 * we recurse to chose the top/bottom con or at least the last
1546 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1547 if (current->type != CT_FLOATING_CON) {
1553 /* If the con has no orientation set, it’s not a split container
1554 * but a container with a client window, so stop recursing */
1561 return con_descend_direction(most, direction);
1565 * Returns a "relative" Rect which contains the amount of pixels that need to
1566 * be added to the original Rect to get the final position (obviously the
1567 * amount of pixels for normal, 1pixel and borderless are different).
1570 Rect con_border_style_rect(Con *con) {
1571 if (config.hide_edge_borders == HEBM_SMART && con_num_visible_children(con_get_workspace(con)) <= 1) {
1572 if (!con_is_floating(con)) {
1573 return (Rect){0, 0, 0, 0};
1577 adjacent_t borders_to_hide = ADJ_NONE;
1578 int border_width = con->current_border_width;
1579 DLOG("The border width for con is set to: %d\n", con->current_border_width);
1581 if (con->current_border_width < 0) {
1582 if (con_is_floating(con)) {
1583 border_width = config.default_floating_border_width;
1585 border_width = config.default_border_width;
1588 DLOG("Effective border width is set to: %d\n", border_width);
1589 /* Shortcut to avoid calling con_adjacent_borders() on dock containers. */
1590 int border_style = con_border_style(con);
1591 if (border_style == BS_NONE)
1592 return (Rect){0, 0, 0, 0};
1593 if (border_style == BS_NORMAL) {
1594 result = (Rect){border_width, 0, -(2 * border_width), -(border_width)};
1596 result = (Rect){border_width, border_width, -(2 * border_width), -(2 * border_width)};
1599 borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
1600 if (borders_to_hide & ADJ_LEFT_SCREEN_EDGE) {
1601 result.x -= border_width;
1602 result.width += border_width;
1604 if (borders_to_hide & ADJ_RIGHT_SCREEN_EDGE) {
1605 result.width += border_width;
1607 if (borders_to_hide & ADJ_UPPER_SCREEN_EDGE && (border_style != BS_NORMAL)) {
1608 result.y -= border_width;
1609 result.height += border_width;
1611 if (borders_to_hide & ADJ_LOWER_SCREEN_EDGE) {
1612 result.height += border_width;
1618 * Returns adjacent borders of the window. We need this if hide_edge_borders is
1621 adjacent_t con_adjacent_borders(Con *con) {
1622 adjacent_t result = ADJ_NONE;
1623 /* Floating windows are never adjacent to any other window, so
1624 don’t hide their border(s). This prevents bug #998. */
1625 if (con_is_floating(con))
1628 Con *workspace = con_get_workspace(con);
1629 if (con->rect.x == workspace->rect.x)
1630 result |= ADJ_LEFT_SCREEN_EDGE;
1631 if (con->rect.x + con->rect.width == workspace->rect.x + workspace->rect.width)
1632 result |= ADJ_RIGHT_SCREEN_EDGE;
1633 if (con->rect.y == workspace->rect.y)
1634 result |= ADJ_UPPER_SCREEN_EDGE;
1635 if (con->rect.y + con->rect.height == workspace->rect.y + workspace->rect.height)
1636 result |= ADJ_LOWER_SCREEN_EDGE;
1641 * Use this function to get a container’s border style. This is important
1642 * because when inside a stack, the border style is always BS_NORMAL.
1643 * For tabbed mode, the same applies, with one exception: when the container is
1644 * borderless and the only element in the tabbed container, the border is not
1647 * For children of a CT_DOCKAREA, the border style is always none.
1650 int con_border_style(Con *con) {
1651 Con *fs = con_get_fullscreen_con(con->parent, CF_OUTPUT);
1653 DLOG("this one is fullscreen! overriding BS_NONE\n");
1657 if (con->parent->layout == L_STACKED)
1658 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1660 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
1661 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1663 if (con->parent->type == CT_DOCKAREA)
1666 return con->border_style;
1670 * Sets the given border style on con, correctly keeping the position/size of a
1674 void con_set_border_style(Con *con, int border_style, int border_width) {
1675 /* Handle the simple case: non-floating containerns */
1676 if (!con_is_floating(con)) {
1677 con->border_style = border_style;
1678 con->current_border_width = border_width;
1682 /* For floating containers, we want to keep the position/size of the
1683 * *window* itself. We first add the border pixels to con->rect to make
1684 * con->rect represent the absolute position of the window (same for
1685 * parent). Then, we change the border style and subtract the new border
1686 * pixels. For the parent, we do the same also for the decoration. */
1687 DLOG("This is a floating container\n");
1689 Con *parent = con->parent;
1690 Rect bsr = con_border_style_rect(con);
1691 int deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1693 con->rect = rect_add(con->rect, bsr);
1694 parent->rect = rect_add(parent->rect, bsr);
1695 parent->rect.y += deco_height;
1696 parent->rect.height -= deco_height;
1698 /* Change the border style, get new border/decoration values. */
1699 con->border_style = border_style;
1700 con->current_border_width = border_width;
1701 bsr = con_border_style_rect(con);
1702 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1704 con->rect = rect_sub(con->rect, bsr);
1705 parent->rect = rect_sub(parent->rect, bsr);
1706 parent->rect.y -= deco_height;
1707 parent->rect.height += deco_height;
1711 * This function changes the layout of a given container. Use it to handle
1712 * special cases like changing a whole workspace to stacked/tabbed (creates a
1713 * new split container before).
1716 void con_set_layout(Con *con, layout_t layout) {
1717 DLOG("con_set_layout(%p, %d), con->type = %d\n",
1718 con, layout, con->type);
1720 /* Users can focus workspaces, but not any higher in the hierarchy.
1721 * Focus on the workspace is a special case, since in every other case, the
1722 * user means "change the layout of the parent split container". */
1723 if (con->type != CT_WORKSPACE)
1726 /* We fill in last_split_layout when switching to a different layout
1727 * since there are many places in the code that don’t use
1728 * con_set_layout(). */
1729 if (con->layout == L_SPLITH || con->layout == L_SPLITV)
1730 con->last_split_layout = con->layout;
1732 /* When the container type is CT_WORKSPACE, the user wants to change the
1733 * whole workspace into stacked/tabbed mode. To do this and still allow
1734 * intuitive operations (like level-up and then opening a new window), we
1735 * need to create a new split container. */
1736 if (con->type == CT_WORKSPACE) {
1737 if (con_num_children(con) == 0) {
1738 layout_t ws_layout = (layout == L_STACKED || layout == L_TABBED) ? layout : L_DEFAULT;
1739 DLOG("Setting workspace_layout to %d\n", ws_layout);
1740 con->workspace_layout = ws_layout;
1741 DLOG("Setting layout to %d\n", layout);
1742 con->layout = layout;
1743 } else if (layout == L_STACKED || layout == L_TABBED) {
1744 DLOG("Creating new split container\n");
1745 /* 1: create a new split container */
1746 Con *new = con_new(NULL, NULL);
1749 /* 2: Set the requested layout on the split container and mark it as
1751 new->layout = layout;
1752 new->last_split_layout = con->last_split_layout;
1754 /* Save the container that was focused before we move containers
1755 * around, but only if the container is visible (otherwise focus
1756 * will be restored properly automatically when switching). */
1757 Con *old_focused = TAILQ_FIRST(&(con->focus_head));
1758 if (old_focused == TAILQ_END(&(con->focus_head)))
1760 if (old_focused != NULL &&
1761 !workspace_is_visible(con_get_workspace(old_focused)))
1764 /* 3: move the existing cons of this workspace below the new con */
1765 DLOG("Moving cons\n");
1767 while (!TAILQ_EMPTY(&(con->nodes_head))) {
1768 child = TAILQ_FIRST(&(con->nodes_head));
1770 con_attach(child, new, true);
1773 /* 4: attach the new split container to the workspace */
1774 DLOG("Attaching new split to ws\n");
1775 con_attach(new, con, false);
1778 con_focus(old_focused);
1780 tree_flatten(croot);
1782 con_force_split_parents_redraw(con);
1786 if (layout == L_DEFAULT) {
1787 /* Special case: the layout formerly known as "default" (in combination
1788 * with an orientation). Since we switched to splith/splitv layouts,
1789 * using the "default" layout (which "only" should happen when using
1790 * legacy configs) is using the last split layout (either splith or
1791 * splitv) in order to still do the same thing. */
1792 con->layout = con->last_split_layout;
1793 /* In case last_split_layout was not initialized… */
1794 if (con->layout == L_DEFAULT)
1795 con->layout = L_SPLITH;
1797 con->layout = layout;
1799 con_force_split_parents_redraw(con);
1803 * This function toggles the layout of a given container. toggle_mode can be
1804 * either 'default' (toggle only between stacked/tabbed/last_split_layout),
1805 * 'split' (toggle only between splitv/splith) or 'all' (toggle between all
1809 void con_toggle_layout(Con *con, const char *toggle_mode) {
1811 /* Users can focus workspaces, but not any higher in the hierarchy.
1812 * Focus on the workspace is a special case, since in every other case, the
1813 * user means "change the layout of the parent split container". */
1814 if (con->type != CT_WORKSPACE)
1815 parent = con->parent;
1816 DLOG("con_toggle_layout(%p, %s), parent = %p\n", con, toggle_mode, parent);
1818 const char delim[] = " ";
1820 if (strcasecmp(toggle_mode, "split") == 0 || strstr(toggle_mode, delim)) {
1821 /* L_DEFAULT is used as a placeholder value to distinguish if
1822 * the first layout has already been saved. (it can never be L_DEFAULT) */
1823 layout_t new_layout = L_DEFAULT;
1824 bool current_layout_found = false;
1825 char *tm_dup = sstrdup(toggle_mode);
1826 char *cur_tok = strtok(tm_dup, delim);
1828 for (layout_t layout; cur_tok != NULL; cur_tok = strtok(NULL, delim)) {
1829 if (strcasecmp(cur_tok, "split") == 0) {
1830 /* Toggle between splits. When the current layout is not a split
1831 * layout, we just switch back to last_split_layout. Otherwise, we
1832 * change to the opposite split layout. */
1833 if (parent->layout != L_SPLITH && parent->layout != L_SPLITV) {
1834 layout = parent->last_split_layout;
1836 layout = (parent->layout == L_SPLITH) ? L_SPLITV : L_SPLITH;
1839 bool success = layout_from_name(cur_tok, &layout);
1840 if (!success || layout == L_DEFAULT) {
1841 ELOG("The token '%s' was not recognized and has been skipped.\n", cur_tok);
1846 /* If none of the specified layouts match the current,
1847 * fall back to the first layout in the list */
1848 if (new_layout == L_DEFAULT) {
1849 new_layout = layout;
1852 /* We found the active layout in the last iteration, so
1853 * now let's activate the current layout (next in list) */
1854 if (current_layout_found) {
1855 new_layout = layout;
1860 if (parent->layout == layout) {
1861 current_layout_found = true;
1865 con_set_layout(con, new_layout);
1866 } else if (strcasecmp(toggle_mode, "all") == 0 || strcasecmp(toggle_mode, "default") == 0) {
1867 if (parent->layout == L_STACKED)
1868 con_set_layout(con, L_TABBED);
1869 else if (parent->layout == L_TABBED) {
1870 if (strcasecmp(toggle_mode, "all") == 0)
1871 con_set_layout(con, L_SPLITH);
1873 con_set_layout(con, parent->last_split_layout);
1874 } else if (parent->layout == L_SPLITH || parent->layout == L_SPLITV) {
1875 if (strcasecmp(toggle_mode, "all") == 0) {
1876 /* When toggling through all modes, we toggle between
1877 * splith/splitv, whereas normally we just directly jump to
1879 if (parent->layout == L_SPLITH)
1880 con_set_layout(con, L_SPLITV);
1882 con_set_layout(con, L_STACKED);
1884 con_set_layout(con, L_STACKED);
1891 * Callback which will be called when removing a child from the given con.
1892 * Kills the container if it is empty and replaces it with the child if there
1893 * is exactly one child.
1896 static void con_on_remove_child(Con *con) {
1897 DLOG("on_remove_child\n");
1899 /* Every container 'above' (in the hierarchy) the workspace content should
1900 * not be closed when the last child was removed */
1901 if (con->type == CT_OUTPUT ||
1902 con->type == CT_ROOT ||
1903 con->type == CT_DOCKAREA ||
1904 (con->parent != NULL && con->parent->type == CT_OUTPUT)) {
1905 DLOG("not handling, type = %d, name = %s\n", con->type, con->name);
1909 /* For workspaces, close them only if they're not visible anymore */
1910 if (con->type == CT_WORKSPACE) {
1911 if (TAILQ_EMPTY(&(con->focus_head)) && !workspace_is_visible(con)) {
1912 LOG("Closing old workspace (%p / %s), it is empty\n", con, con->name);
1913 yajl_gen gen = ipc_marshal_workspace_event("empty", con, NULL);
1914 tree_close_internal(con, DONT_KILL_WINDOW, false, false);
1916 const unsigned char *payload;
1918 y(get_buf, &payload, &length);
1919 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, (const char *)payload);
1926 con_force_split_parents_redraw(con);
1927 con->urgent = con_has_urgent_child(con);
1928 con_update_parents_urgency(con);
1930 /* TODO: check if this container would swallow any other client and
1931 * don’t close it automatically. */
1932 int children = con_num_children(con);
1933 if (children == 0) {
1934 DLOG("Container empty, closing\n");
1935 tree_close_internal(con, DONT_KILL_WINDOW, false, false);
1941 * Determines the minimum size of the given con by looking at its children (for
1942 * split/stacked/tabbed cons). Will be called when resizing floating cons
1945 Rect con_minimum_size(Con *con) {
1946 DLOG("Determining minimum size for con %p\n", con);
1948 if (con_is_leaf(con)) {
1949 DLOG("leaf node, returning 75x50\n");
1950 return (Rect){0, 0, 75, 50};
1953 if (con->type == CT_FLOATING_CON) {
1954 DLOG("floating con\n");
1955 Con *child = TAILQ_FIRST(&(con->nodes_head));
1956 return con_minimum_size(child);
1959 if (con->layout == L_STACKED || con->layout == L_TABBED) {
1960 uint32_t max_width = 0, max_height = 0, deco_height = 0;
1962 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1963 Rect min = con_minimum_size(child);
1964 deco_height += child->deco_rect.height;
1965 max_width = max(max_width, min.width);
1966 max_height = max(max_height, min.height);
1968 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
1969 max_width, max_height, deco_height);
1970 return (Rect){0, 0, max_width, max_height + deco_height};
1973 /* For horizontal/vertical split containers we sum up the width (h-split)
1974 * or height (v-split) and use the maximum of the height (h-split) or width
1975 * (v-split) as minimum size. */
1976 if (con_is_split(con)) {
1977 uint32_t width = 0, height = 0;
1979 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1980 Rect min = con_minimum_size(child);
1981 if (con->layout == L_SPLITH) {
1983 height = max(height, min.height);
1985 height += min.height;
1986 width = max(width, min.width);
1989 DLOG("split container, returning width = %d x height = %d\n", width, height);
1990 return (Rect){0, 0, width, height};
1993 ELOG("Unhandled case, type = %d, layout = %d, split = %d\n",
1994 con->type, con->layout, con_is_split(con));
1999 * Returns true if changing the focus to con would be allowed considering
2000 * the fullscreen focus constraints. Specifically, if a fullscreen container or
2001 * any of its descendants is focused, this function returns true if and only if
2002 * focusing con would mean that focus would still be visible on screen, i.e.,
2003 * the newly focused container would not be obscured by a fullscreen container.
2005 * In the simplest case, if a fullscreen container or any of its descendants is
2006 * fullscreen, this functions returns true if con is the fullscreen container
2007 * itself or any of its descendants, as this means focus wouldn't escape the
2008 * boundaries of the fullscreen container.
2010 * In case the fullscreen container is of type CF_OUTPUT, this function returns
2011 * true if con is on a different workspace, as focus wouldn't be obscured by
2012 * the fullscreen container that is constrained to a different workspace.
2014 * Note that this same logic can be applied to moving containers. If a
2015 * container can be focused under the fullscreen focus constraints, it can also
2016 * become a parent or sibling to the currently focused container.
2019 bool con_fullscreen_permits_focusing(Con *con) {
2020 /* No focus, no problem. */
2024 /* Find the first fullscreen ascendent. */
2026 while (fs && fs->fullscreen_mode == CF_NONE)
2029 /* fs must be non-NULL since the workspace con doesn’t have CF_NONE and
2030 * there always has to be a workspace con in the hierarchy. */
2032 /* The most common case is we hit the workspace level. In this
2033 * situation, changing focus is also harmless. */
2034 assert(fs->fullscreen_mode != CF_NONE);
2035 if (fs->type == CT_WORKSPACE)
2038 /* Allow it if the container itself is the fullscreen container. */
2042 /* If fullscreen is per-output, the focus being in a different workspace is
2043 * sufficient to guarantee that change won't leave fullscreen in bad shape. */
2044 if (fs->fullscreen_mode == CF_OUTPUT &&
2045 con_get_workspace(con) != con_get_workspace(fs)) {
2049 /* Allow it only if the container to be focused is contained within the
2050 * current fullscreen container. */
2052 if (con->parent == fs)
2057 /* Focusing con would hide it behind a fullscreen window, disallow it. */
2063 * Checks if the given container has an urgent child.
2066 bool con_has_urgent_child(Con *con) {
2069 if (con_is_leaf(con))
2072 /* We are not interested in floating windows since they can only be
2073 * attached to a workspace → nodes_head instead of focus_head */
2074 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2075 if (con_has_urgent_child(child))
2083 * Make all parent containers urgent if con is urgent or clear the urgent flag
2084 * of all parent containers if there are no more urgent children left.
2087 void con_update_parents_urgency(Con *con) {
2088 Con *parent = con->parent;
2090 /* Urgency hints should not be set on any container higher up in the
2091 * hierarchy than the workspace level. Unfortunately, since the content
2092 * container has type == CT_CON, that’s not easy to verify in the loop
2093 * below, so we need another condition to catch that case: */
2094 if (con->type == CT_WORKSPACE)
2097 bool new_urgency_value = con->urgent;
2098 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
2099 if (new_urgency_value) {
2100 parent->urgent = true;
2102 /* We can only reset the urgency when the parent
2103 * has no other urgent children */
2104 if (!con_has_urgent_child(parent))
2105 parent->urgent = false;
2107 parent = parent->parent;
2112 * Set urgency flag to the container, all the parent containers and the workspace.
2115 void con_set_urgency(Con *con, bool urgent) {
2116 if (urgent && focused == con) {
2117 DLOG("Ignoring urgency flag for current client\n");
2121 const bool old_urgent = con->urgent;
2123 if (con->urgency_timer == NULL) {
2124 con->urgent = urgent;
2126 DLOG("Discarding urgency WM_HINT because timer is running\n");
2131 gettimeofday(&con->window->urgent, NULL);
2133 con->window->urgent.tv_sec = 0;
2134 con->window->urgent.tv_usec = 0;
2138 con_update_parents_urgency(con);
2141 /* Set the urgency flag on the workspace, if a workspace could be found
2142 * (for dock clients, that is not the case). */
2143 if ((ws = con_get_workspace(con)) != NULL)
2144 workspace_update_urgent_flag(ws);
2146 if (con->urgent != old_urgent) {
2147 LOG("Urgency flag changed to %d\n", con->urgent);
2148 ipc_send_window_event("urgent", con);
2153 * Create a string representing the subtree under con.
2156 char *con_get_tree_representation(Con *con) {
2157 /* this code works as follows:
2158 * 1) create a string with the layout type (D/V/H/T/S) and an opening bracket
2159 * 2) append the tree representation of the children to the string
2160 * 3) add closing bracket
2162 * The recursion ends when we hit a leaf, in which case we return the
2163 * class_instance of the contained window.
2166 /* end of recursion */
2167 if (con_is_leaf(con)) {
2169 return sstrdup("nowin");
2171 if (!con->window->class_instance)
2172 return sstrdup("noinstance");
2174 return sstrdup(con->window->class_instance);
2178 /* 1) add the Layout type to buf */
2179 if (con->layout == L_DEFAULT)
2180 buf = sstrdup("D[");
2181 else if (con->layout == L_SPLITV)
2182 buf = sstrdup("V[");
2183 else if (con->layout == L_SPLITH)
2184 buf = sstrdup("H[");
2185 else if (con->layout == L_TABBED)
2186 buf = sstrdup("T[");
2187 else if (con->layout == L_STACKED)
2188 buf = sstrdup("S[");
2190 ELOG("BUG: Code not updated to account for new layout type\n");
2194 /* 2) append representation of children */
2196 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2197 char *child_txt = con_get_tree_representation(child);
2200 sasprintf(&tmp_buf, "%s%s%s", buf,
2201 (TAILQ_FIRST(&(con->nodes_head)) == child ? "" : " "), child_txt);
2207 /* 3) close the brackets */
2209 sasprintf(&complete_buf, "%s]", buf);
2212 return complete_buf;
2216 * Returns the container's title considering the current title format.
2219 i3String *con_parse_title_format(Con *con) {
2220 assert(con->title_format != NULL);
2222 i3Window *win = con->window;
2224 /* We need to ensure that we only escape the window title if pango
2225 * is used by the current font. */
2226 const bool pango_markup = font_is_pango();
2232 title = pango_escape_markup(con_get_tree_representation(con));
2233 class = sstrdup("i3-frame");
2234 instance = sstrdup("i3-frame");
2236 title = pango_escape_markup(sstrdup((win->name == NULL) ? "" : i3string_as_utf8(win->name)));
2237 class = pango_escape_markup(sstrdup((win->class_class == NULL) ? "" : win->class_class));
2238 instance = pango_escape_markup(sstrdup((win->class_instance == NULL) ? "" : win->class_instance));
2241 placeholder_t placeholders[] = {
2242 {.name = "%title", .value = title},
2243 {.name = "%class", .value = class},
2244 {.name = "%instance", .value = instance}};
2245 const size_t num = sizeof(placeholders) / sizeof(placeholder_t);
2247 char *formatted_str = format_placeholders(con->title_format, &placeholders[0], num);
2248 i3String *formatted = i3string_from_utf8(formatted_str);
2249 i3string_set_markup(formatted, pango_markup);
2250 FREE(formatted_str);
2252 for (size_t i = 0; i < num; i++) {
2253 FREE(placeholders[i].value);
2260 * Swaps the two containers.
2263 bool con_swap(Con *first, Con *second) {
2264 assert(first != NULL);
2265 assert(second != NULL);
2266 DLOG("Swapping containers %p / %p\n", first, second);
2268 if (first->type != CT_CON) {
2269 ELOG("Only regular containers can be swapped, but found con = %p with type = %d.\n", first, first->type);
2273 if (second->type != CT_CON) {
2274 ELOG("Only regular containers can be swapped, but found con = %p with type = %d.\n", second, second->type);
2278 if (con_is_floating(first) || con_is_floating(second)) {
2279 ELOG("Floating windows cannot be swapped.\n");
2283 if (first == second) {
2284 DLOG("Swapping container %p with itself, nothing to do.\n", first);
2288 if (con_has_parent(first, second) || con_has_parent(second, first)) {
2289 ELOG("Cannot swap containers %p and %p because they are in a parent-child relationship.\n", first, second);
2293 Con *old_focus = focused;
2295 Con *first_ws = con_get_workspace(first);
2296 Con *second_ws = con_get_workspace(second);
2297 Con *current_ws = con_get_workspace(old_focus);
2298 const bool focused_within_first = (first == old_focus || con_has_parent(old_focus, first));
2299 const bool focused_within_second = (second == old_focus || con_has_parent(old_focus, second));
2300 fullscreen_mode_t first_fullscreen_mode = first->fullscreen_mode;
2301 fullscreen_mode_t second_fullscreen_mode = second->fullscreen_mode;
2303 if (first_fullscreen_mode != CF_NONE) {
2304 con_disable_fullscreen(first);
2306 if (second_fullscreen_mode != CF_NONE) {
2307 con_disable_fullscreen(second);
2310 double first_percent = first->percent;
2311 double second_percent = second->percent;
2313 /* De- and reattaching the containers will insert them at the tail of the
2314 * focus_heads. We will need to fix this. But we need to make sure first
2315 * and second don't get in each other's way if they share the same parent,
2316 * so we select the closest previous focus_head that isn't involved. */
2317 Con *first_prev_focus_head = first;
2318 while (first_prev_focus_head == first || first_prev_focus_head == second) {
2319 first_prev_focus_head = TAILQ_PREV(first_prev_focus_head, focus_head, focused);
2322 Con *second_prev_focus_head = second;
2323 while (second_prev_focus_head == second || second_prev_focus_head == first) {
2324 second_prev_focus_head = TAILQ_PREV(second_prev_focus_head, focus_head, focused);
2327 /* We use a fake container to mark the spot of where the second container needs to go. */
2328 Con *fake = con_new(NULL, NULL);
2329 fake->layout = L_SPLITH;
2330 _con_attach(fake, first->parent, first, true);
2333 /* Swap the containers. We set the ignore_focus flag here because after the
2334 * container is attached, the focus order is not yet correct and would
2335 * result in wrong windows being focused. */
2337 /* Move first to second. */
2338 result &= _con_move_to_con(first, second, false, false, false, true, false);
2340 /* If we moved the container holding the focused window to another
2341 * workspace we need to ensure the visible workspace has the focused
2343 * We don't need to check this for the second container because we've only
2344 * moved the first one at this point.*/
2345 if (first_ws != second_ws && focused_within_first) {
2346 con_focus(con_descend_focused(current_ws));
2349 /* Move second to where first has been originally. */
2350 result &= _con_move_to_con(second, fake, false, false, false, true, false);
2352 /* If swapping the containers didn't work we don't need to mess with the focus. */
2357 /* Swapping will have inserted the containers at the tail of their parents'
2358 * focus head. We fix this now by putting them in the position of the focus
2359 * head the container they swapped with was in. */
2360 TAILQ_REMOVE(&(first->parent->focus_head), first, focused);
2361 TAILQ_REMOVE(&(second->parent->focus_head), second, focused);
2363 if (second_prev_focus_head == NULL) {
2364 TAILQ_INSERT_HEAD(&(first->parent->focus_head), first, focused);
2366 TAILQ_INSERT_AFTER(&(first->parent->focus_head), second_prev_focus_head, first, focused);
2369 if (first_prev_focus_head == NULL) {
2370 TAILQ_INSERT_HEAD(&(second->parent->focus_head), second, focused);
2372 TAILQ_INSERT_AFTER(&(second->parent->focus_head), first_prev_focus_head, second, focused);
2375 /* If the focus was within any of the swapped containers, do the following:
2376 * - If swapping took place within a workspace, ensure the previously
2377 * focused container stays focused.
2378 * - Otherwise, focus the container that has been swapped in.
2380 * To understand why fixing the focus_head previously wasn't enough,
2381 * consider the scenario
2382 * H[ V[ A X ] V[ Y B ] ]
2383 * with B being focused, but X being the focus_head within its parent. If
2384 * we swap A and B now, fixing the focus_head would focus X, but since B
2385 * was the focused container before it should stay focused.
2387 if (focused_within_first) {
2388 if (first_ws == second_ws) {
2389 con_focus(old_focus);
2391 con_focus(con_descend_focused(second));
2393 } else if (focused_within_second) {
2394 if (first_ws == second_ws) {
2395 con_focus(old_focus);
2397 con_focus(con_descend_focused(first));
2401 /* We need to copy each other's percentages to ensure that the geometry
2402 * doesn't change during the swap. This needs to happen _before_ we close
2403 * the fake container as closing the tree will recalculate percentages. */
2404 first->percent = second_percent;
2405 second->percent = first_percent;
2406 fake->percent = 0.0;
2408 SWAP(first_fullscreen_mode, second_fullscreen_mode, fullscreen_mode_t);
2411 /* The two windows exchange their original fullscreen status */
2412 if (first_fullscreen_mode != CF_NONE) {
2413 con_enable_fullscreen(first, first_fullscreen_mode);
2415 if (second_fullscreen_mode != CF_NONE) {
2416 con_enable_fullscreen(second, second_fullscreen_mode);
2419 /* We don't actually need this since percentages-wise we haven't changed
2420 * anything, but we'll better be safe than sorry and just make sure as we'd
2421 * otherwise crash i3. */
2422 con_fix_percent(first->parent);
2423 con_fix_percent(second->parent);
2425 /* We can get rid of the fake container again now. */
2426 con_close(fake, DONT_KILL_WINDOW);
2428 con_force_split_parents_redraw(first);
2429 con_force_split_parents_redraw(second);