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;
50 new->depth = root_depth;
52 DLOG("opening window\n");
54 TAILQ_INIT(&(new->floating_head));
55 TAILQ_INIT(&(new->nodes_head));
56 TAILQ_INIT(&(new->focus_head));
57 TAILQ_INIT(&(new->swallow_head));
58 TAILQ_INIT(&(new->marks_head));
61 con_attach(new, parent, false);
66 /* A wrapper for con_new_skeleton, to retain the old con_new behaviour
69 Con *con_new(Con *parent, i3Window *window) {
70 Con *new = con_new_skeleton(parent, window);
76 * Frees the specified container.
79 void con_free(Con *con) {
81 FREE(con->deco_render_params);
82 TAILQ_REMOVE(&all_cons, con, all_cons);
83 while (!TAILQ_EMPTY(&(con->swallow_head))) {
84 Match *match = TAILQ_FIRST(&(con->swallow_head));
85 TAILQ_REMOVE(&(con->swallow_head), match, matches);
89 while (!TAILQ_EMPTY(&(con->marks_head))) {
90 mark_t *mark = TAILQ_FIRST(&(con->marks_head));
91 TAILQ_REMOVE(&(con->marks_head), mark, marks);
96 DLOG("con %p freed\n", con);
99 static void _con_attach(Con *con, Con *parent, Con *previous, bool ignore_focus) {
100 con->parent = parent;
102 Con *current = previous;
103 struct nodes_head *nodes_head = &(parent->nodes_head);
104 struct focus_head *focus_head = &(parent->focus_head);
106 /* Workspaces are handled differently: they need to be inserted at the
108 if (con->type == CT_WORKSPACE) {
109 DLOG("it's a workspace. num = %d\n", con->num);
110 if (con->num == -1 || TAILQ_EMPTY(nodes_head)) {
111 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
113 current = TAILQ_FIRST(nodes_head);
114 if (con->num < current->num) {
115 /* we need to insert the container at the beginning */
116 TAILQ_INSERT_HEAD(nodes_head, con, nodes);
118 while (current->num != -1 && con->num > current->num) {
119 current = TAILQ_NEXT(current, nodes);
120 if (current == TAILQ_END(nodes_head)) {
125 /* we need to insert con after current, if current is not NULL */
127 TAILQ_INSERT_BEFORE(current, con, nodes);
129 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
132 goto add_to_focus_head;
135 if (con->type == CT_FLOATING_CON) {
136 DLOG("Inserting into floating containers\n");
137 TAILQ_INSERT_TAIL(&(parent->floating_head), con, floating_windows);
140 /* Get the first tiling container in focus stack */
141 TAILQ_FOREACH(loop, &(parent->focus_head), focused) {
142 if (loop->type == CT_FLOATING_CON)
149 /* When the container is not a split container (but contains a window)
150 * and is attached to a workspace, we check if the user configured a
151 * workspace_layout. This is done in workspace_attach_to, which will
152 * provide us with the container to which we should attach (either the
153 * workspace or a new split container with the configured
156 if (con->window != NULL &&
157 parent->type == CT_WORKSPACE &&
158 parent->workspace_layout != L_DEFAULT) {
159 DLOG("Parent is a workspace. Applying default layout...\n");
160 Con *target = workspace_attach_to(parent);
162 /* Attach the original con to this new split con instead */
163 nodes_head = &(target->nodes_head);
164 focus_head = &(target->focus_head);
165 con->parent = target;
171 /* Insert the container after the tiling container, if found.
172 * When adding to a CT_OUTPUT, just append one after another. */
173 if (current != NULL && parent->type != CT_OUTPUT) {
174 DLOG("Inserting con = %p after con %p\n", con, current);
175 TAILQ_INSERT_AFTER(nodes_head, current, con, nodes);
177 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
181 /* We insert to the TAIL because con_focus() will correct this.
182 * This way, we have the option to insert Cons without having
184 TAILQ_INSERT_TAIL(focus_head, con, focused);
185 con_force_split_parents_redraw(con);
189 * Attaches the given container to the given parent. This happens when moving
190 * a container or when inserting a new container at a specific place in the
193 * ignore_focus is to just insert the Con at the end (useful when creating a
194 * new split container *around* some containers, that is, detaching and
195 * attaching them in order without wanting to mess with the focus in between).
198 void con_attach(Con *con, Con *parent, bool ignore_focus) {
199 _con_attach(con, parent, NULL, ignore_focus);
203 * Detaches the given container from its current parent
206 void con_detach(Con *con) {
207 con_force_split_parents_redraw(con);
208 if (con->type == CT_FLOATING_CON) {
209 TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
210 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
212 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
213 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
218 * Sets input focus to the given container. Will be updated in X11 in the next
219 * run of x_push_changes().
222 void con_focus(Con *con) {
224 DLOG("con_focus = %p\n", con);
226 /* 1: set focused-pointer to the new con */
227 /* 2: exchange the position of the container in focus stack of the parent all the way up */
228 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
229 TAILQ_INSERT_HEAD(&(con->parent->focus_head), con, focused);
230 if (con->parent->parent != NULL)
231 con_focus(con->parent);
234 /* We can't blindly reset non-leaf containers since they might have
235 * other urgent children. Therefore we only reset leafs and propagate
236 * the changes upwards via con_update_parents_urgency() which does proper
237 * checks before resetting the urgency.
239 if (con->urgent && con_is_leaf(con)) {
240 con_set_urgency(con, false);
241 con_update_parents_urgency(con);
242 workspace_update_urgent_flag(con_get_workspace(con));
243 ipc_send_window_event("urgent", con);
248 * Raise container to the top if it is floating or inside some floating
252 static void con_raise(Con *con) {
253 Con *floating = con_inside_floating(con);
255 floating_raise_con(floating);
260 * Sets input focus to the given container and raises it to the top.
263 void con_activate(Con *con) {
269 * Closes the given container.
272 void con_close(Con *con, kill_window_t kill_window) {
274 DLOG("Closing con = %p.\n", con);
276 /* We never close output or root containers. */
277 if (con->type == CT_OUTPUT || con->type == CT_ROOT) {
278 DLOG("con = %p is of type %d, not closing anything.\n", con, con->type);
282 if (con->type == CT_WORKSPACE) {
283 DLOG("con = %p is a workspace, closing all children instead.\n", con);
284 Con *child, *nextchild;
285 for (child = TAILQ_FIRST(&(con->focus_head)); child;) {
286 nextchild = TAILQ_NEXT(child, focused);
287 DLOG("killing child = %p.\n", child);
288 tree_close_internal(child, kill_window, false);
295 tree_close_internal(con, kill_window, false);
299 * Returns true when this node is a leaf node (has no children)
302 bool con_is_leaf(Con *con) {
303 return TAILQ_EMPTY(&(con->nodes_head));
307 * Returns true when this con is a leaf node with a managed X11 window (e.g.,
308 * excluding dock containers)
310 bool con_has_managed_window(Con *con) {
311 return (con != NULL && con->window != NULL && con->window->id != XCB_WINDOW_NONE && con_get_workspace(con) != NULL);
315 * Returns true if this node has regular or floating children.
318 bool con_has_children(Con *con) {
319 return (!con_is_leaf(con) || !TAILQ_EMPTY(&(con->floating_head)));
323 * Returns true if a container should be considered split.
326 bool con_is_split(Con *con) {
327 if (con_is_leaf(con))
330 switch (con->layout) {
341 * This will only return true for containers which have some parent with
342 * a tabbed / stacked parent of which they are not the currently focused child.
345 bool con_is_hidden(Con *con) {
348 /* ascend to the workspace level and memorize the highest-up container
349 * which is stacked or tabbed. */
350 while (current != NULL && current->type != CT_WORKSPACE) {
351 Con *parent = current->parent;
352 if (parent != NULL && (parent->layout == L_TABBED || parent->layout == L_STACKED)) {
353 if (TAILQ_FIRST(&(parent->focus_head)) != current)
364 * Returns whether the container or any of its children is sticky.
367 bool con_is_sticky(Con *con) {
372 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
373 if (con_is_sticky(child))
381 * Returns true if this node accepts a window (if the node swallows windows,
382 * it might already have swallowed enough and cannot hold any more).
385 bool con_accepts_window(Con *con) {
386 /* 1: workspaces never accept direct windows */
387 if (con->type == CT_WORKSPACE)
390 if (con_is_split(con)) {
391 DLOG("container %p does not accept windows, it is a split container.\n", con);
395 /* TODO: if this is a swallowing container, we need to check its max_clients */
396 return (con->window == NULL);
400 * Gets the output container (first container with CT_OUTPUT in hierarchy) this
404 Con *con_get_output(Con *con) {
406 while (result != NULL && result->type != CT_OUTPUT)
407 result = result->parent;
408 /* We must be able to get an output because focus can never be set higher
409 * in the tree (root node cannot be focused). */
410 assert(result != NULL);
415 * Gets the workspace container this node is on.
418 Con *con_get_workspace(Con *con) {
420 while (result != NULL && result->type != CT_WORKSPACE)
421 result = result->parent;
426 * Searches parents of the given 'con' until it reaches one with the specified
427 * 'orientation'. Aborts when it comes across a floating_con.
430 Con *con_parent_with_orientation(Con *con, orientation_t orientation) {
431 DLOG("Searching for parent of Con %p with orientation %d\n", con, orientation);
432 Con *parent = con->parent;
433 if (parent->type == CT_FLOATING_CON)
435 while (con_orientation(parent) != orientation) {
436 DLOG("Need to go one level further up\n");
437 parent = parent->parent;
438 /* Abort when we reach a floating con, or an output con */
440 (parent->type == CT_FLOATING_CON ||
441 parent->type == CT_OUTPUT ||
442 (parent->parent && parent->parent->type == CT_OUTPUT)))
447 DLOG("Result: %p\n", parent);
452 * helper data structure for the breadth-first-search in
453 * con_get_fullscreen_con()
459 TAILQ_ENTRY(bfs_entry)
464 * Returns the first fullscreen node below this node.
467 Con *con_get_fullscreen_con(Con *con, fullscreen_mode_t fullscreen_mode) {
468 Con *current, *child;
470 /* TODO: is breadth-first-search really appropriate? (check as soon as
471 * fullscreen levels and fullscreen for containers is implemented) */
472 TAILQ_HEAD(bfs_head, bfs_entry)
473 bfs_head = TAILQ_HEAD_INITIALIZER(bfs_head);
475 struct bfs_entry *entry = smalloc(sizeof(struct bfs_entry));
477 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
479 while (!TAILQ_EMPTY(&bfs_head)) {
480 entry = TAILQ_FIRST(&bfs_head);
481 current = entry->con;
482 if (current != con && current->fullscreen_mode == fullscreen_mode) {
483 /* empty the queue */
484 while (!TAILQ_EMPTY(&bfs_head)) {
485 entry = TAILQ_FIRST(&bfs_head);
486 TAILQ_REMOVE(&bfs_head, entry, entries);
492 TAILQ_REMOVE(&bfs_head, entry, entries);
495 TAILQ_FOREACH(child, &(current->nodes_head), nodes) {
496 entry = smalloc(sizeof(struct bfs_entry));
498 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
501 TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
502 entry = smalloc(sizeof(struct bfs_entry));
504 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
512 * Returns the fullscreen node that covers the given workspace if it exists.
513 * This is either a CF_GLOBAL fullscreen container anywhere or a CF_OUTPUT
514 * fullscreen container in the workspace.
517 Con *con_get_fullscreen_covering_ws(Con *ws) {
521 Con *fs = con_get_fullscreen_con(croot, CF_GLOBAL);
523 return con_get_fullscreen_con(ws, CF_OUTPUT);
529 * Returns true if the container is internal, such as __i3_scratch
532 bool con_is_internal(Con *con) {
533 return (con->name[0] == '_' && con->name[1] == '_');
537 * Returns true if the node is floating.
540 bool con_is_floating(Con *con) {
542 return (con->floating >= FLOATING_AUTO_ON);
546 * Returns true if the container is a docked container.
549 bool con_is_docked(Con *con) {
550 if (con->parent == NULL)
553 if (con->parent->type == CT_DOCKAREA)
556 return con_is_docked(con->parent);
560 * Checks if the given container is either floating or inside some floating
561 * container. It returns the FLOATING_CON container.
564 Con *con_inside_floating(Con *con) {
566 if (con->type == CT_FLOATING_CON)
569 if (con->floating >= FLOATING_AUTO_ON)
572 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
575 return con_inside_floating(con->parent);
579 * Checks if the given container is inside a focused container.
582 bool con_inside_focused(Con *con) {
587 return con_inside_focused(con->parent);
591 * Checks if the container has the given parent as an actual parent.
594 bool con_has_parent(Con *con, Con *parent) {
595 Con *current = con->parent;
596 if (current == NULL) {
600 if (current == parent) {
604 return con_has_parent(current, parent);
608 * Returns the container with the given client window ID or NULL if no such
612 Con *con_by_window_id(xcb_window_t window) {
614 TAILQ_FOREACH(con, &all_cons, all_cons)
615 if (con->window != NULL && con->window->id == window)
621 * Returns the container with the given container ID or NULL if no such
625 Con *con_by_con_id(long target) {
627 TAILQ_FOREACH(con, &all_cons, all_cons) {
628 if (con == (Con *)target) {
637 * Returns true if the given container (still) exists.
638 * This can be used, e.g., to make sure a container hasn't been closed in the meantime.
641 bool con_exists(Con *con) {
642 return con_by_con_id((long)con) != NULL;
646 * Returns the container with the given frame ID or NULL if no such container
650 Con *con_by_frame_id(xcb_window_t frame) {
652 TAILQ_FOREACH(con, &all_cons, all_cons)
653 if (con->frame.id == frame)
659 * Returns the container with the given mark or NULL if no such container
663 Con *con_by_mark(const char *mark) {
665 TAILQ_FOREACH(con, &all_cons, all_cons) {
666 if (con_has_mark(con, mark))
674 * Returns true if and only if the given containers holds the mark.
677 bool con_has_mark(Con *con, const char *mark) {
679 TAILQ_FOREACH(current, &(con->marks_head), marks) {
680 if (strcmp(current->name, mark) == 0)
688 * Toggles the mark on a container.
689 * If the container already has this mark, the mark is removed.
690 * Otherwise, the mark is assigned to the container.
693 void con_mark_toggle(Con *con, const char *mark, mark_mode_t mode) {
695 DLOG("Toggling mark \"%s\" on con = %p.\n", mark, con);
697 if (con_has_mark(con, mark)) {
698 con_unmark(con, mark);
700 con_mark(con, mark, mode);
705 * Assigns a mark to the container.
708 void con_mark(Con *con, const char *mark, mark_mode_t mode) {
710 DLOG("Setting mark \"%s\" on con = %p.\n", mark, con);
712 con_unmark(NULL, mark);
713 if (mode == MM_REPLACE) {
714 DLOG("Removing all existing marks on con = %p.\n", con);
717 while (!TAILQ_EMPTY(&(con->marks_head))) {
718 current = TAILQ_FIRST(&(con->marks_head));
719 con_unmark(con, current->name);
723 mark_t *new = scalloc(1, sizeof(mark_t));
724 new->name = sstrdup(mark);
725 TAILQ_INSERT_TAIL(&(con->marks_head), new, marks);
726 ipc_send_window_event("mark", con);
728 con->mark_changed = true;
732 * Removes marks from containers.
733 * If con is NULL, all containers are considered.
734 * If name is NULL, this removes all existing marks.
735 * Otherwise, it will only remove the given mark (if it is present).
738 void con_unmark(Con *con, const char *name) {
741 DLOG("Unmarking all containers.\n");
742 TAILQ_FOREACH(current, &all_cons, all_cons) {
743 if (con != NULL && current != con)
746 if (TAILQ_EMPTY(&(current->marks_head)))
750 while (!TAILQ_EMPTY(&(current->marks_head))) {
751 mark = TAILQ_FIRST(&(current->marks_head));
753 TAILQ_REMOVE(&(current->marks_head), mark, marks);
756 ipc_send_window_event("mark", current);
759 current->mark_changed = true;
762 DLOG("Removing mark \"%s\".\n", name);
763 current = (con == NULL) ? con_by_mark(name) : con;
764 if (current == NULL) {
765 DLOG("No container found with this mark, so there is nothing to do.\n");
769 DLOG("Found mark on con = %p. Removing it now.\n", current);
770 current->mark_changed = true;
773 TAILQ_FOREACH(mark, &(current->marks_head), marks) {
774 if (strcmp(mark->name, name) != 0)
778 TAILQ_REMOVE(&(current->marks_head), mark, marks);
781 ipc_send_window_event("mark", current);
788 * Returns the first container below 'con' which wants to swallow this window
792 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
795 //DLOG("searching con for window %p starting at con %p\n", window, con);
796 //DLOG("class == %s\n", window->class_class);
798 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
799 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
800 if (!match_matches_window(match, window))
802 if (store_match != NULL)
803 *store_match = match;
806 Con *result = con_for_window(child, window, store_match);
811 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
812 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
813 if (!match_matches_window(match, window))
815 if (store_match != NULL)
816 *store_match = match;
819 Con *result = con_for_window(child, window, store_match);
827 static int num_focus_heads(Con *con) {
831 TAILQ_FOREACH(current, &(con->focus_head), focused) {
839 * Iterate over the container's focus stack and return an array with the
840 * containers inside it, ordered from higher focus order to lowest.
843 Con **get_focus_order(Con *con) {
844 const int focus_heads = num_focus_heads(con);
845 Con **focus_order = smalloc(focus_heads * sizeof(Con *));
848 TAILQ_FOREACH(current, &(con->focus_head), focused) {
849 assert(idx < focus_heads);
850 focus_order[idx++] = current;
857 * Clear the container's focus stack and re-add it using the provided container
858 * array. The function doesn't check if the provided array contains the same
859 * containers with the previous focus stack but will not add floating containers
860 * in the new focus stack if container is not a workspace.
863 void set_focus_order(Con *con, Con **focus_order) {
865 while (!TAILQ_EMPTY(&(con->focus_head))) {
866 Con *current = TAILQ_FIRST(&(con->focus_head));
868 TAILQ_REMOVE(&(con->focus_head), current, focused);
872 for (int idx = 0; idx < focus_heads; idx++) {
873 /* Useful when encapsulating a workspace. */
874 if (con->type != CT_WORKSPACE && con_inside_floating(focus_order[idx])) {
879 TAILQ_INSERT_TAIL(&(con->focus_head), focus_order[idx], focused);
884 * Returns the number of children of this container.
887 int con_num_children(Con *con) {
891 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
898 * Returns the number of visible non-floating children of this container.
899 * For example, if the container contains a hsplit which has two children,
900 * this will return 2 instead of 1.
902 int con_num_visible_children(Con *con) {
908 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
909 /* Visible leaf nodes are a child. */
910 if (!con_is_hidden(current) && con_is_leaf(current))
912 /* All other containers need to be recursed. */
914 children += con_num_visible_children(current);
921 * Count the number of windows (i.e., leaf containers).
924 int con_num_windows(Con *con) {
928 if (con_has_managed_window(con))
933 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
934 num += con_num_windows(current);
937 TAILQ_FOREACH(current, &(con->floating_head), floating_windows) {
938 num += con_num_windows(current);
945 * Updates the percent attribute of the children of the given container. This
946 * function needs to be called when a window is added or removed from a
950 void con_fix_percent(Con *con) {
952 int children = con_num_children(con);
954 // calculate how much we have distributed and how many containers
955 // with a percentage set we have
957 int children_with_percent = 0;
958 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
959 if (child->percent > 0.0) {
960 total += child->percent;
961 ++children_with_percent;
965 // if there were children without a percentage set, set to a value that
966 // will make those children proportional to all others
967 if (children_with_percent != children) {
968 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
969 if (child->percent <= 0.0) {
970 if (children_with_percent == 0) {
971 total += (child->percent = 1.0);
973 total += (child->percent = total / children_with_percent);
979 // if we got a zero, just distribute the space equally, otherwise
980 // distribute according to the proportions we got
982 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
983 child->percent = 1.0 / children;
985 } else if (total != 1.0) {
986 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
987 child->percent /= total;
993 * Toggles fullscreen mode for the given container. If there already is a
994 * fullscreen container on this workspace, fullscreen will be disabled and then
995 * enabled for the container the user wants to have in fullscreen mode.
998 void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
999 if (con->type == CT_WORKSPACE) {
1000 DLOG("You cannot make a workspace fullscreen.\n");
1004 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
1006 if (con->fullscreen_mode == CF_NONE)
1007 con_enable_fullscreen(con, fullscreen_mode);
1009 con_disable_fullscreen(con);
1013 * Sets the specified fullscreen mode for the given container, sends the
1014 * “fullscreen_mode” event and changes the XCB fullscreen property of the
1015 * container’s window, if any.
1018 static void con_set_fullscreen_mode(Con *con, fullscreen_mode_t fullscreen_mode) {
1019 con->fullscreen_mode = fullscreen_mode;
1021 DLOG("mode now: %d\n", con->fullscreen_mode);
1023 /* Send an ipc window "fullscreen_mode" event */
1024 ipc_send_window_event("fullscreen_mode", con);
1026 /* update _NET_WM_STATE if this container has a window */
1027 /* TODO: when a window is assigned to a container which is already
1028 * fullscreened, this state needs to be pushed to the client, too */
1029 if (con->window == NULL)
1032 if (con->fullscreen_mode != CF_NONE) {
1033 DLOG("Setting _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
1034 xcb_add_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
1036 DLOG("Removing _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
1037 xcb_remove_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
1042 * Enables fullscreen mode for the given container, if necessary.
1044 * If the container’s mode is already CF_OUTPUT or CF_GLOBAL, the container is
1045 * kept fullscreen but its mode is set to CF_GLOBAL and CF_OUTPUT,
1048 * Other fullscreen containers will be disabled first, if they hide the new
1052 void con_enable_fullscreen(Con *con, fullscreen_mode_t fullscreen_mode) {
1053 if (con->type == CT_WORKSPACE) {
1054 DLOG("You cannot make a workspace fullscreen.\n");
1058 assert(fullscreen_mode == CF_GLOBAL || fullscreen_mode == CF_OUTPUT);
1060 if (fullscreen_mode == CF_GLOBAL)
1061 DLOG("enabling global fullscreen for %p / %s\n", con, con->name);
1063 DLOG("enabling fullscreen for %p / %s\n", con, con->name);
1065 if (con->fullscreen_mode == fullscreen_mode) {
1066 DLOG("fullscreen already enabled for %p / %s\n", con, con->name);
1070 Con *con_ws = con_get_workspace(con);
1072 /* Disable any fullscreen container that would conflict the new one. */
1073 Con *fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
1074 if (fullscreen == NULL)
1075 fullscreen = con_get_fullscreen_con(con_ws, CF_OUTPUT);
1076 if (fullscreen != NULL)
1077 con_disable_fullscreen(fullscreen);
1079 /* Set focus to new fullscreen container. Unless in global fullscreen mode
1080 * and on another workspace restore focus afterwards.
1081 * Switch to the container’s workspace if mode is global. */
1082 Con *cur_ws = con_get_workspace(focused);
1083 Con *old_focused = focused;
1084 if (fullscreen_mode == CF_GLOBAL && cur_ws != con_ws)
1085 workspace_show(con_ws);
1087 if (fullscreen_mode != CF_GLOBAL && cur_ws != con_ws)
1088 con_activate(old_focused);
1090 con_set_fullscreen_mode(con, fullscreen_mode);
1094 * Disables fullscreen mode for the given container regardless of the mode, if
1098 void con_disable_fullscreen(Con *con) {
1099 if (con->type == CT_WORKSPACE) {
1100 DLOG("You cannot make a workspace fullscreen.\n");
1104 DLOG("disabling fullscreen for %p / %s\n", con, con->name);
1106 if (con->fullscreen_mode == CF_NONE) {
1107 DLOG("fullscreen already disabled for %p / %s\n", con, con->name);
1111 con_set_fullscreen_mode(con, CF_NONE);
1114 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) {
1115 Con *orig_target = target;
1117 /* Prevent moving if this would violate the fullscreen focus restrictions. */
1118 Con *target_ws = con_get_workspace(target);
1119 if (!ignore_focus && !con_fullscreen_permits_focusing(target_ws)) {
1120 LOG("Cannot move out of a fullscreen container.\n");
1124 if (con_is_floating(con)) {
1125 DLOG("Container is floating, using parent instead.\n");
1129 Con *source_ws = con_get_workspace(con);
1131 if (con->type == CT_WORKSPACE) {
1132 /* Re-parent all of the old workspace's floating windows. */
1134 while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
1135 child = TAILQ_FIRST(&(source_ws->floating_head));
1136 con_move_to_workspace(child, target_ws, true, true, false);
1139 /* If there are no non-floating children, ignore the workspace. */
1140 if (con_is_leaf(con))
1143 con = workspace_encapsulate(con);
1145 ELOG("Workspace failed to move its contents into a container!\n");
1150 /* Save the urgency state so that we can restore it. */
1151 bool urgent = con->urgent;
1153 /* Save the current workspace. So we can call workspace_show() by the end
1154 * of this function. */
1155 Con *current_ws = con_get_workspace(focused);
1157 Con *source_output = con_get_output(con),
1158 *dest_output = con_get_output(target_ws);
1160 /* 1: save the container which is going to be focused after the current
1161 * container is moved away */
1162 Con *focus_next = NULL;
1163 if (!ignore_focus && source_ws == current_ws) {
1164 focus_next = con_descend_focused(source_ws);
1165 if (focus_next == con || con_has_parent(focus_next, con)) {
1166 focus_next = con_next_focused(con);
1170 /* 2: we go up one level, but only when target is a normal container */
1171 if (target->type != CT_WORKSPACE) {
1172 DLOG("target originally = %p / %s / type %d\n", target, target->name, target->type);
1173 target = target->parent;
1176 /* 3: if the original target is the direct child of a floating container, we
1177 * can't move con next to it - floating containers have only one child - so
1178 * we get the workspace instead. */
1179 if (target->type == CT_FLOATING_CON) {
1180 DLOG("floatingcon, going up even further\n");
1181 orig_target = target;
1182 target = target->parent;
1185 if (con->type == CT_FLOATING_CON) {
1186 Con *ws = con_get_workspace(target);
1187 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
1191 if (source_output != dest_output) {
1192 /* Take the relative coordinates of the current output, then add them
1193 * to the coordinate space of the correct output */
1194 if (fix_coordinates && con->type == CT_FLOATING_CON) {
1195 floating_fix_coordinates(con, &(source_output->rect), &(dest_output->rect));
1197 DLOG("Not fixing coordinates, fix_coordinates flag = %d\n", fix_coordinates);
1200 /* If moving a fullscreen container and the destination already has a
1201 * fullscreen window on it, un-fullscreen the target's fullscreen con. */
1202 Con *fullscreen = con_get_fullscreen_con(target_ws, CF_OUTPUT);
1203 if (con->fullscreen_mode != CF_NONE && fullscreen != NULL) {
1204 con_toggle_fullscreen(fullscreen, CF_OUTPUT);
1208 DLOG("Re-attaching container to %p / %s\n", target, target->name);
1209 /* 4: re-attach the con to the parent of this focused container */
1210 Con *parent = con->parent;
1212 _con_attach(con, target, behind_focused ? NULL : orig_target, !behind_focused);
1214 /* 5: fix the percentages */
1215 if (fix_percentage) {
1216 con_fix_percent(parent);
1218 con_fix_percent(target);
1221 /* 6: focus the con on the target workspace, but only within that
1222 * workspace, that is, don’t move focus away if the target workspace is
1224 * We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
1225 * we don’t focus when there is a fullscreen con on that workspace. We
1226 * also don't do it if the caller requested to ignore focus. */
1227 if (!ignore_focus && !con_is_internal(target_ws) && !fullscreen) {
1228 /* We need to save the focused workspace on the output in case the
1229 * new workspace is hidden and it's necessary to immediately switch
1230 * back to the originally-focused workspace. */
1231 Con *old_focus_ws = TAILQ_FIRST(&(output_get_content(dest_output)->focus_head));
1232 Con *old_focus = focused;
1233 con_activate(con_descend_focused(con));
1235 if (old_focus_ws == current_ws && old_focus->type != CT_WORKSPACE) {
1236 /* Restore focus to the currently focused container. */
1237 con_activate(old_focus);
1238 } else if (con_get_workspace(focused) != old_focus_ws) {
1239 /* Restore focus if the output's focused workspace has changed. */
1240 con_focus(con_descend_focused(old_focus_ws));
1244 /* 7: when moving to another workspace, we leave the focus on the current
1245 * workspace. (see also #809) */
1246 if (!ignore_focus) {
1247 workspace_show(current_ws);
1249 DLOG("x_set_warp_to(NULL) because dont_warp is set\n");
1250 x_set_warp_to(NULL);
1254 /* Set focus only if con was on current workspace before moving.
1255 * Otherwise we would give focus to some window on different workspace. */
1257 con_activate(con_descend_focused(focus_next));
1259 /* 8. If anything within the container is associated with a startup sequence,
1260 * delete it so child windows won't be created on the old workspace. */
1261 struct Startup_Sequence *sequence;
1262 xcb_get_property_cookie_t cookie;
1263 xcb_get_property_reply_t *startup_id_reply;
1265 if (!con_is_leaf(con)) {
1267 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1271 cookie = xcb_get_property(conn, false, child->window->id,
1272 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1273 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1275 sequence = startup_sequence_get(child->window, startup_id_reply, true);
1276 if (sequence != NULL)
1277 startup_sequence_delete(sequence);
1282 cookie = xcb_get_property(conn, false, con->window->id,
1283 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1284 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1286 sequence = startup_sequence_get(con->window, startup_id_reply, true);
1287 if (sequence != NULL)
1288 startup_sequence_delete(sequence);
1291 /* 9. If the container was marked urgent, move the urgency hint. */
1293 workspace_update_urgent_flag(source_ws);
1294 con_set_urgency(con, true);
1297 /* Ensure the container will be redrawn. */
1298 FREE(con->deco_render_params);
1300 CALL(parent, on_remove_child);
1302 ipc_send_window_event("move", con);
1303 ewmh_update_wm_desktop();
1308 * Moves the given container to the given mark.
1311 bool con_move_to_mark(Con *con, const char *mark) {
1312 Con *target = con_by_mark(mark);
1313 if (target == NULL) {
1314 DLOG("found no container with mark \"%s\"\n", mark);
1318 /* For floating target containers, we just send the window to the same workspace. */
1319 if (con_is_floating(target)) {
1320 DLOG("target container is floating, moving container to target's workspace.\n");
1321 con_move_to_workspace(con, con_get_workspace(target), true, false, false);
1325 if (target->type == CT_WORKSPACE) {
1326 DLOG("target container is a workspace, simply moving the container there.\n");
1327 con_move_to_workspace(con, target, true, false, false);
1331 /* For split containers, we use the currently focused container within it.
1332 * This allows setting marks on, e.g., tabbed containers which will move
1333 * con to a new tab behind the focused tab. */
1334 if (con_is_split(target)) {
1335 DLOG("target is a split container, descending to the currently focused child.\n");
1336 target = TAILQ_FIRST(&(target->focus_head));
1339 if (con == target || con_has_parent(target, con)) {
1340 DLOG("cannot move the container to or inside itself, aborting.\n");
1344 return _con_move_to_con(con, target, false, true, false, false, true);
1348 * Moves the given container to the currently focused container on the given
1351 * The fix_coordinates flag will translate the current coordinates (offset from
1352 * the monitor position basically) to appropriate coordinates on the
1353 * destination workspace.
1354 * Not enabling this behaviour comes in handy when this function gets called by
1355 * floating_maybe_reassign_ws, which will only "move" a floating window when it
1356 * *already* changed its coordinates to a different output.
1358 * The dont_warp flag disables pointer warping and will be set when this
1359 * function is called while dragging a floating window.
1361 * If ignore_focus is set, the container will be moved without modifying focus
1364 * TODO: is there a better place for this function?
1367 void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
1368 assert(workspace->type == CT_WORKSPACE);
1370 Con *source_ws = con_get_workspace(con);
1371 if (workspace == source_ws) {
1372 DLOG("Not moving, already there\n");
1376 Con *target = con_descend_focused(workspace);
1377 _con_move_to_con(con, target, true, fix_coordinates, dont_warp, ignore_focus, true);
1381 * Moves the given container to the currently focused container on the
1382 * visible workspace on the given output.
1385 void con_move_to_output(Con *con, Output *output, bool fix_coordinates) {
1387 GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1389 DLOG("Moving con %p to output %s\n", con, output_primary_name(output));
1390 con_move_to_workspace(con, ws, fix_coordinates, false, false);
1394 * Moves the given container to the currently focused container on the
1395 * visible workspace on the output specified by the given name.
1396 * The current output for the container is used to resolve relative names
1397 * such as left, right, up, down.
1400 bool con_move_to_output_name(Con *con, const char *name, bool fix_coordinates) {
1401 Output *current_output = get_output_for_con(con);
1402 Output *output = get_output_from_string(current_output, name);
1403 if (output == NULL) {
1404 ELOG("Could not find output \"%s\"\n", name);
1408 con_move_to_output(con, output, fix_coordinates);
1413 * Returns the orientation of the given container (for stacked containers,
1414 * vertical orientation is used regardless of the actual orientation of the
1418 orientation_t con_orientation(Con *con) {
1419 switch (con->layout) {
1421 /* stacking containers behave like they are in vertical orientation */
1426 /* tabbed containers behave like they are in vertical orientation */
1431 ELOG("Someone called con_orientation() on a con with L_DEFAULT, this is a bug in the code.\n");
1436 ELOG("con_orientation() called on dockarea/output (%d) container %p\n", con->layout, con);
1439 /* should not be reached */
1444 * Returns the container which will be focused next when the given container
1445 * is not available anymore. Called in tree_close_internal and con_move_to_workspace
1446 * to properly restore focus.
1449 Con *con_next_focused(Con *con) {
1450 /* dock clients cannot be focused, so we focus the workspace instead */
1451 if (con->parent->type == CT_DOCKAREA) {
1452 DLOG("selecting workspace for dock client\n");
1453 return con_descend_focused(output_get_content(con->parent->parent));
1455 if (con_is_floating(con)) {
1459 /* if 'con' is not the first entry in the focus stack, use the first one as
1460 * it’s currently focused already */
1461 Con *next = TAILQ_FIRST(&(con->parent->focus_head));
1463 DLOG("Using first entry %p\n", next);
1465 /* try to focus the next container on the same level as this one or fall
1466 * back to its parent */
1467 if (!(next = TAILQ_NEXT(con, focused))) {
1472 /* now go down the focus stack as far as
1473 * possible, excluding the current container */
1474 while (!TAILQ_EMPTY(&(next->focus_head)) && TAILQ_FIRST(&(next->focus_head)) != con) {
1475 next = TAILQ_FIRST(&(next->focus_head));
1478 if (con->type == CT_FLOATING_CON && next != con->parent) {
1479 next = con_descend_focused(next);
1486 * Returns the focused con inside this client, descending the tree as far as
1487 * possible. This comes in handy when attaching a con to a workspace at the
1488 * currently focused position, for example.
1491 Con *con_descend_focused(Con *con) {
1493 while (next != focused && !TAILQ_EMPTY(&(next->focus_head)))
1494 next = TAILQ_FIRST(&(next->focus_head));
1499 * Returns the focused con inside this client, descending the tree as far as
1500 * possible. This comes in handy when attaching a con to a workspace at the
1501 * currently focused position, for example.
1503 * Works like con_descend_focused but considers only tiling cons.
1506 Con *con_descend_tiling_focused(Con *con) {
1510 if (next == focused)
1514 TAILQ_FOREACH(child, &(next->focus_head), focused) {
1515 if (child->type == CT_FLOATING_CON)
1521 } while (before != next && next != focused);
1526 * Returns the leftmost, rightmost, etc. container in sub-tree. For example, if
1527 * direction is D_LEFT, then we return the rightmost container and if direction
1528 * is D_RIGHT, we return the leftmost container. This is because if we are
1529 * moving D_LEFT, and thus want the rightmost container.
1532 Con *con_descend_direction(Con *con, direction_t direction) {
1535 int orientation = con_orientation(con);
1536 DLOG("con_descend_direction(%p, orientation %d, direction %d)\n", con, orientation, direction);
1537 if (direction == D_LEFT || direction == D_RIGHT) {
1538 if (orientation == HORIZ) {
1539 /* If the direction is horizontal, we can use either the first
1540 * (D_RIGHT) or the last con (D_LEFT) */
1541 if (direction == D_RIGHT)
1542 most = TAILQ_FIRST(&(con->nodes_head));
1544 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1545 } else if (orientation == VERT) {
1546 /* Wrong orientation. We use the last focused con. Within that con,
1547 * we recurse to chose the left/right con or at least the last
1549 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1550 if (current->type != CT_FLOATING_CON) {
1556 /* If the con has no orientation set, it’s not a split container
1557 * but a container with a client window, so stop recursing */
1562 if (direction == D_UP || direction == D_DOWN) {
1563 if (orientation == VERT) {
1564 /* If the direction is vertical, we can use either the first
1565 * (D_DOWN) or the last con (D_UP) */
1566 if (direction == D_UP)
1567 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1569 most = TAILQ_FIRST(&(con->nodes_head));
1570 } else if (orientation == HORIZ) {
1571 /* Wrong orientation. We use the last focused con. Within that con,
1572 * we recurse to chose the top/bottom con or at least the last
1574 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1575 if (current->type != CT_FLOATING_CON) {
1581 /* If the con has no orientation set, it’s not a split container
1582 * but a container with a client window, so stop recursing */
1589 return con_descend_direction(most, direction);
1593 * Returns a "relative" Rect which contains the amount of pixels that need to
1594 * be added to the original Rect to get the final position (obviously the
1595 * amount of pixels for normal, 1pixel and borderless are different).
1598 Rect con_border_style_rect(Con *con) {
1599 if (config.hide_edge_borders == HEBM_SMART && con_num_visible_children(con_get_workspace(con)) <= 1) {
1600 if (!con_is_floating(con)) {
1601 return (Rect){0, 0, 0, 0};
1605 adjacent_t borders_to_hide = ADJ_NONE;
1606 int border_width = con->current_border_width;
1607 DLOG("The border width for con is set to: %d\n", con->current_border_width);
1609 if (con->current_border_width < 0) {
1610 if (con_is_floating(con)) {
1611 border_width = config.default_floating_border_width;
1613 border_width = config.default_border_width;
1616 DLOG("Effective border width is set to: %d\n", border_width);
1617 /* Shortcut to avoid calling con_adjacent_borders() on dock containers. */
1618 int border_style = con_border_style(con);
1619 if (border_style == BS_NONE)
1620 return (Rect){0, 0, 0, 0};
1621 if (border_style == BS_NORMAL) {
1622 result = (Rect){border_width, 0, -(2 * border_width), -(border_width)};
1624 result = (Rect){border_width, border_width, -(2 * border_width), -(2 * border_width)};
1627 borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
1628 if (borders_to_hide & ADJ_LEFT_SCREEN_EDGE) {
1629 result.x -= border_width;
1630 result.width += border_width;
1632 if (borders_to_hide & ADJ_RIGHT_SCREEN_EDGE) {
1633 result.width += border_width;
1635 if (borders_to_hide & ADJ_UPPER_SCREEN_EDGE && (border_style != BS_NORMAL)) {
1636 result.y -= border_width;
1637 result.height += border_width;
1639 if (borders_to_hide & ADJ_LOWER_SCREEN_EDGE) {
1640 result.height += border_width;
1646 * Returns adjacent borders of the window. We need this if hide_edge_borders is
1649 adjacent_t con_adjacent_borders(Con *con) {
1650 adjacent_t result = ADJ_NONE;
1651 /* Floating windows are never adjacent to any other window, so
1652 don’t hide their border(s). This prevents bug #998. */
1653 if (con_is_floating(con))
1656 Con *workspace = con_get_workspace(con);
1657 if (con->rect.x == workspace->rect.x)
1658 result |= ADJ_LEFT_SCREEN_EDGE;
1659 if (con->rect.x + con->rect.width == workspace->rect.x + workspace->rect.width)
1660 result |= ADJ_RIGHT_SCREEN_EDGE;
1661 if (con->rect.y == workspace->rect.y)
1662 result |= ADJ_UPPER_SCREEN_EDGE;
1663 if (con->rect.y + con->rect.height == workspace->rect.y + workspace->rect.height)
1664 result |= ADJ_LOWER_SCREEN_EDGE;
1669 * Use this function to get a container’s border style. This is important
1670 * because when inside a stack, the border style is always BS_NORMAL.
1671 * For tabbed mode, the same applies, with one exception: when the container is
1672 * borderless and the only element in the tabbed container, the border is not
1675 * For children of a CT_DOCKAREA, the border style is always none.
1678 int con_border_style(Con *con) {
1679 if (con->fullscreen_mode == CF_OUTPUT || con->fullscreen_mode == CF_GLOBAL) {
1680 DLOG("this one is fullscreen! overriding BS_NONE\n");
1684 if (con->parent->layout == L_STACKED)
1685 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1687 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
1688 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1690 if (con->parent->type == CT_DOCKAREA)
1693 return con->border_style;
1697 * Sets the given border style on con, correctly keeping the position/size of a
1701 void con_set_border_style(Con *con, int border_style, int border_width) {
1702 /* Handle the simple case: non-floating containerns */
1703 if (!con_is_floating(con)) {
1704 con->border_style = border_style;
1705 con->current_border_width = border_width;
1709 /* For floating containers, we want to keep the position/size of the
1710 * *window* itself. We first add the border pixels to con->rect to make
1711 * con->rect represent the absolute position of the window (same for
1712 * parent). Then, we change the border style and subtract the new border
1713 * pixels. For the parent, we do the same also for the decoration. */
1714 DLOG("This is a floating container\n");
1716 Con *parent = con->parent;
1717 Rect bsr = con_border_style_rect(con);
1718 int deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1720 con->rect = rect_add(con->rect, bsr);
1721 parent->rect = rect_add(parent->rect, bsr);
1722 parent->rect.y += deco_height;
1723 parent->rect.height -= deco_height;
1725 /* Change the border style, get new border/decoration values. */
1726 con->border_style = border_style;
1727 con->current_border_width = border_width;
1728 bsr = con_border_style_rect(con);
1729 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1731 con->rect = rect_sub(con->rect, bsr);
1732 parent->rect = rect_sub(parent->rect, bsr);
1733 parent->rect.y -= deco_height;
1734 parent->rect.height += deco_height;
1738 * This function changes the layout of a given container. Use it to handle
1739 * special cases like changing a whole workspace to stacked/tabbed (creates a
1740 * new split container before).
1743 void con_set_layout(Con *con, layout_t layout) {
1744 DLOG("con_set_layout(%p, %d), con->type = %d\n",
1745 con, layout, con->type);
1747 /* Users can focus workspaces, but not any higher in the hierarchy.
1748 * Focus on the workspace is a special case, since in every other case, the
1749 * user means "change the layout of the parent split container". */
1750 if (con->type != CT_WORKSPACE)
1753 /* We fill in last_split_layout when switching to a different layout
1754 * since there are many places in the code that don’t use
1755 * con_set_layout(). */
1756 if (con->layout == L_SPLITH || con->layout == L_SPLITV)
1757 con->last_split_layout = con->layout;
1759 /* When the container type is CT_WORKSPACE, the user wants to change the
1760 * whole workspace into stacked/tabbed mode. To do this and still allow
1761 * intuitive operations (like level-up and then opening a new window), we
1762 * need to create a new split container. */
1763 if (con->type == CT_WORKSPACE) {
1764 if (con_num_children(con) == 0) {
1765 layout_t ws_layout = (layout == L_STACKED || layout == L_TABBED) ? layout : L_DEFAULT;
1766 DLOG("Setting workspace_layout to %d\n", ws_layout);
1767 con->workspace_layout = ws_layout;
1768 DLOG("Setting layout to %d\n", layout);
1769 con->layout = layout;
1770 } else if (layout == L_STACKED || layout == L_TABBED || layout == L_SPLITV || layout == L_SPLITH) {
1771 DLOG("Creating new split container\n");
1772 /* 1: create a new split container */
1773 Con *new = con_new(NULL, NULL);
1776 /* 2: Set the requested layout on the split container and mark it as
1778 new->layout = layout;
1779 new->last_split_layout = con->last_split_layout;
1781 /* 3: move the existing cons of this workspace below the new con */
1782 Con **focus_order = get_focus_order(con);
1784 DLOG("Moving cons\n");
1786 while (!TAILQ_EMPTY(&(con->nodes_head))) {
1787 child = TAILQ_FIRST(&(con->nodes_head));
1789 con_attach(child, new, true);
1792 set_focus_order(new, focus_order);
1795 /* 4: attach the new split container to the workspace */
1796 DLOG("Attaching new split to ws\n");
1797 con_attach(new, con, false);
1799 tree_flatten(croot);
1801 con_force_split_parents_redraw(con);
1805 if (layout == L_DEFAULT) {
1806 /* Special case: the layout formerly known as "default" (in combination
1807 * with an orientation). Since we switched to splith/splitv layouts,
1808 * using the "default" layout (which "only" should happen when using
1809 * legacy configs) is using the last split layout (either splith or
1810 * splitv) in order to still do the same thing. */
1811 con->layout = con->last_split_layout;
1812 /* In case last_split_layout was not initialized… */
1813 if (con->layout == L_DEFAULT)
1814 con->layout = L_SPLITH;
1816 con->layout = layout;
1818 con_force_split_parents_redraw(con);
1822 * This function toggles the layout of a given container. toggle_mode can be
1823 * either 'default' (toggle only between stacked/tabbed/last_split_layout),
1824 * 'split' (toggle only between splitv/splith) or 'all' (toggle between all
1828 void con_toggle_layout(Con *con, const char *toggle_mode) {
1830 /* Users can focus workspaces, but not any higher in the hierarchy.
1831 * Focus on the workspace is a special case, since in every other case, the
1832 * user means "change the layout of the parent split container". */
1833 if (con->type != CT_WORKSPACE)
1834 parent = con->parent;
1835 DLOG("con_toggle_layout(%p, %s), parent = %p\n", con, toggle_mode, parent);
1837 const char delim[] = " ";
1839 if (strcasecmp(toggle_mode, "split") == 0 || strstr(toggle_mode, delim)) {
1840 /* L_DEFAULT is used as a placeholder value to distinguish if
1841 * the first layout has already been saved. (it can never be L_DEFAULT) */
1842 layout_t new_layout = L_DEFAULT;
1843 bool current_layout_found = false;
1844 char *tm_dup = sstrdup(toggle_mode);
1845 char *cur_tok = strtok(tm_dup, delim);
1847 for (layout_t layout; cur_tok != NULL; cur_tok = strtok(NULL, delim)) {
1848 if (strcasecmp(cur_tok, "split") == 0) {
1849 /* Toggle between splits. When the current layout is not a split
1850 * layout, we just switch back to last_split_layout. Otherwise, we
1851 * change to the opposite split layout. */
1852 if (parent->layout != L_SPLITH && parent->layout != L_SPLITV) {
1853 layout = parent->last_split_layout;
1854 /* In case last_split_layout was not initialized… */
1855 if (layout == L_DEFAULT) {
1859 layout = (parent->layout == L_SPLITH) ? L_SPLITV : L_SPLITH;
1862 bool success = layout_from_name(cur_tok, &layout);
1863 if (!success || layout == L_DEFAULT) {
1864 ELOG("The token '%s' was not recognized and has been skipped.\n", cur_tok);
1869 /* If none of the specified layouts match the current,
1870 * fall back to the first layout in the list */
1871 if (new_layout == L_DEFAULT) {
1872 new_layout = layout;
1875 /* We found the active layout in the last iteration, so
1876 * now let's activate the current layout (next in list) */
1877 if (current_layout_found) {
1878 new_layout = layout;
1882 if (parent->layout == layout) {
1883 current_layout_found = true;
1888 if (new_layout != L_DEFAULT) {
1889 con_set_layout(con, new_layout);
1891 } else if (strcasecmp(toggle_mode, "all") == 0 || strcasecmp(toggle_mode, "default") == 0) {
1892 if (parent->layout == L_STACKED)
1893 con_set_layout(con, L_TABBED);
1894 else if (parent->layout == L_TABBED) {
1895 if (strcasecmp(toggle_mode, "all") == 0)
1896 con_set_layout(con, L_SPLITH);
1898 con_set_layout(con, parent->last_split_layout);
1899 } else if (parent->layout == L_SPLITH || parent->layout == L_SPLITV) {
1900 if (strcasecmp(toggle_mode, "all") == 0) {
1901 /* When toggling through all modes, we toggle between
1902 * splith/splitv, whereas normally we just directly jump to
1904 if (parent->layout == L_SPLITH)
1905 con_set_layout(con, L_SPLITV);
1907 con_set_layout(con, L_STACKED);
1909 con_set_layout(con, L_STACKED);
1916 * Callback which will be called when removing a child from the given con.
1917 * Kills the container if it is empty and replaces it with the child if there
1918 * is exactly one child.
1921 static void con_on_remove_child(Con *con) {
1922 DLOG("on_remove_child\n");
1924 /* Every container 'above' (in the hierarchy) the workspace content should
1925 * not be closed when the last child was removed */
1926 if (con->type == CT_OUTPUT ||
1927 con->type == CT_ROOT ||
1928 con->type == CT_DOCKAREA ||
1929 (con->parent != NULL && con->parent->type == CT_OUTPUT)) {
1930 DLOG("not handling, type = %d, name = %s\n", con->type, con->name);
1934 /* For workspaces, close them only if they're not visible anymore */
1935 if (con->type == CT_WORKSPACE) {
1936 if (TAILQ_EMPTY(&(con->focus_head)) && !workspace_is_visible(con)) {
1937 LOG("Closing old workspace (%p / %s), it is empty\n", con, con->name);
1938 yajl_gen gen = ipc_marshal_workspace_event("empty", con, NULL);
1939 tree_close_internal(con, DONT_KILL_WINDOW, false);
1941 const unsigned char *payload;
1943 y(get_buf, &payload, &length);
1944 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, (const char *)payload);
1951 con_force_split_parents_redraw(con);
1952 con->urgent = con_has_urgent_child(con);
1953 con_update_parents_urgency(con);
1955 /* TODO: check if this container would swallow any other client and
1956 * don’t close it automatically. */
1957 int children = con_num_children(con);
1958 if (children == 0) {
1959 DLOG("Container empty, closing\n");
1960 tree_close_internal(con, DONT_KILL_WINDOW, false);
1966 * Determines the minimum size of the given con by looking at its children (for
1967 * split/stacked/tabbed cons). Will be called when resizing floating cons
1970 Rect con_minimum_size(Con *con) {
1971 DLOG("Determining minimum size for con %p\n", con);
1973 if (con_is_leaf(con)) {
1974 DLOG("leaf node, returning 75x50\n");
1975 return (Rect){0, 0, 75, 50};
1978 if (con->type == CT_FLOATING_CON) {
1979 DLOG("floating con\n");
1980 Con *child = TAILQ_FIRST(&(con->nodes_head));
1981 return con_minimum_size(child);
1984 if (con->layout == L_STACKED || con->layout == L_TABBED) {
1985 uint32_t max_width = 0, max_height = 0, deco_height = 0;
1987 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1988 Rect min = con_minimum_size(child);
1989 deco_height += child->deco_rect.height;
1990 max_width = max(max_width, min.width);
1991 max_height = max(max_height, min.height);
1993 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
1994 max_width, max_height, deco_height);
1995 return (Rect){0, 0, max_width, max_height + deco_height};
1998 /* For horizontal/vertical split containers we sum up the width (h-split)
1999 * or height (v-split) and use the maximum of the height (h-split) or width
2000 * (v-split) as minimum size. */
2001 if (con_is_split(con)) {
2002 uint32_t width = 0, height = 0;
2004 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2005 Rect min = con_minimum_size(child);
2006 if (con->layout == L_SPLITH) {
2008 height = max(height, min.height);
2010 height += min.height;
2011 width = max(width, min.width);
2014 DLOG("split container, returning width = %d x height = %d\n", width, height);
2015 return (Rect){0, 0, width, height};
2018 ELOG("Unhandled case, type = %d, layout = %d, split = %d\n",
2019 con->type, con->layout, con_is_split(con));
2024 * Returns true if changing the focus to con would be allowed considering
2025 * the fullscreen focus constraints. Specifically, if a fullscreen container or
2026 * any of its descendants is focused, this function returns true if and only if
2027 * focusing con would mean that focus would still be visible on screen, i.e.,
2028 * the newly focused container would not be obscured by a fullscreen container.
2030 * In the simplest case, if a fullscreen container or any of its descendants is
2031 * fullscreen, this functions returns true if con is the fullscreen container
2032 * itself or any of its descendants, as this means focus wouldn't escape the
2033 * boundaries of the fullscreen container.
2035 * In case the fullscreen container is of type CF_OUTPUT, this function returns
2036 * true if con is on a different workspace, as focus wouldn't be obscured by
2037 * the fullscreen container that is constrained to a different workspace.
2039 * Note that this same logic can be applied to moving containers. If a
2040 * container can be focused under the fullscreen focus constraints, it can also
2041 * become a parent or sibling to the currently focused container.
2044 bool con_fullscreen_permits_focusing(Con *con) {
2045 /* No focus, no problem. */
2049 /* Find the first fullscreen ascendent. */
2051 while (fs && fs->fullscreen_mode == CF_NONE)
2054 /* fs must be non-NULL since the workspace con doesn’t have CF_NONE and
2055 * there always has to be a workspace con in the hierarchy. */
2057 /* The most common case is we hit the workspace level. In this
2058 * situation, changing focus is also harmless. */
2059 assert(fs->fullscreen_mode != CF_NONE);
2060 if (fs->type == CT_WORKSPACE)
2063 /* Allow it if the container itself is the fullscreen container. */
2067 /* If fullscreen is per-output, the focus being in a different workspace is
2068 * sufficient to guarantee that change won't leave fullscreen in bad shape. */
2069 if (fs->fullscreen_mode == CF_OUTPUT &&
2070 con_get_workspace(con) != con_get_workspace(fs)) {
2074 /* Allow it only if the container to be focused is contained within the
2075 * current fullscreen container. */
2076 return con_has_parent(con, fs);
2081 * Checks if the given container has an urgent child.
2084 bool con_has_urgent_child(Con *con) {
2087 if (con_is_leaf(con))
2090 /* We are not interested in floating windows since they can only be
2091 * attached to a workspace → nodes_head instead of focus_head */
2092 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2093 if (con_has_urgent_child(child))
2101 * Make all parent containers urgent if con is urgent or clear the urgent flag
2102 * of all parent containers if there are no more urgent children left.
2105 void con_update_parents_urgency(Con *con) {
2106 Con *parent = con->parent;
2108 /* Urgency hints should not be set on any container higher up in the
2109 * hierarchy than the workspace level. Unfortunately, since the content
2110 * container has type == CT_CON, that’s not easy to verify in the loop
2111 * below, so we need another condition to catch that case: */
2112 if (con->type == CT_WORKSPACE)
2115 bool new_urgency_value = con->urgent;
2116 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
2117 if (new_urgency_value) {
2118 parent->urgent = true;
2120 /* We can only reset the urgency when the parent
2121 * has no other urgent children */
2122 if (!con_has_urgent_child(parent))
2123 parent->urgent = false;
2125 parent = parent->parent;
2130 * Set urgency flag to the container, all the parent containers and the workspace.
2133 void con_set_urgency(Con *con, bool urgent) {
2134 if (urgent && focused == con) {
2135 DLOG("Ignoring urgency flag for current client\n");
2139 const bool old_urgent = con->urgent;
2141 if (con->urgency_timer == NULL) {
2142 con->urgent = urgent;
2144 DLOG("Discarding urgency WM_HINT because timer is running\n");
2149 gettimeofday(&con->window->urgent, NULL);
2151 con->window->urgent.tv_sec = 0;
2152 con->window->urgent.tv_usec = 0;
2156 con_update_parents_urgency(con);
2159 /* Set the urgency flag on the workspace, if a workspace could be found
2160 * (for dock clients, that is not the case). */
2161 if ((ws = con_get_workspace(con)) != NULL)
2162 workspace_update_urgent_flag(ws);
2164 if (con->urgent != old_urgent) {
2165 LOG("Urgency flag changed to %d\n", con->urgent);
2166 ipc_send_window_event("urgent", con);
2171 * Create a string representing the subtree under con.
2174 char *con_get_tree_representation(Con *con) {
2175 /* this code works as follows:
2176 * 1) create a string with the layout type (D/V/H/T/S) and an opening bracket
2177 * 2) append the tree representation of the children to the string
2178 * 3) add closing bracket
2180 * The recursion ends when we hit a leaf, in which case we return the
2181 * class_instance of the contained window.
2184 /* end of recursion */
2185 if (con_is_leaf(con)) {
2187 return sstrdup("nowin");
2189 if (!con->window->class_instance)
2190 return sstrdup("noinstance");
2192 return sstrdup(con->window->class_instance);
2196 /* 1) add the Layout type to buf */
2197 if (con->layout == L_DEFAULT)
2198 buf = sstrdup("D[");
2199 else if (con->layout == L_SPLITV)
2200 buf = sstrdup("V[");
2201 else if (con->layout == L_SPLITH)
2202 buf = sstrdup("H[");
2203 else if (con->layout == L_TABBED)
2204 buf = sstrdup("T[");
2205 else if (con->layout == L_STACKED)
2206 buf = sstrdup("S[");
2208 ELOG("BUG: Code not updated to account for new layout type\n");
2212 /* 2) append representation of children */
2214 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2215 char *child_txt = con_get_tree_representation(child);
2218 sasprintf(&tmp_buf, "%s%s%s", buf,
2219 (TAILQ_FIRST(&(con->nodes_head)) == child ? "" : " "), child_txt);
2225 /* 3) close the brackets */
2227 sasprintf(&complete_buf, "%s]", buf);
2230 return complete_buf;
2234 * Returns the container's title considering the current title format.
2237 i3String *con_parse_title_format(Con *con) {
2238 assert(con->title_format != NULL);
2240 i3Window *win = con->window;
2242 /* We need to ensure that we only escape the window title if pango
2243 * is used by the current font. */
2244 const bool pango_markup = font_is_pango();
2250 title = pango_escape_markup(con_get_tree_representation(con));
2251 class = sstrdup("i3-frame");
2252 instance = sstrdup("i3-frame");
2254 title = pango_escape_markup(sstrdup((win->name == NULL) ? "" : i3string_as_utf8(win->name)));
2255 class = pango_escape_markup(sstrdup((win->class_class == NULL) ? "" : win->class_class));
2256 instance = pango_escape_markup(sstrdup((win->class_instance == NULL) ? "" : win->class_instance));
2259 placeholder_t placeholders[] = {
2260 {.name = "%title", .value = title},
2261 {.name = "%class", .value = class},
2262 {.name = "%instance", .value = instance}};
2263 const size_t num = sizeof(placeholders) / sizeof(placeholder_t);
2265 char *formatted_str = format_placeholders(con->title_format, &placeholders[0], num);
2266 i3String *formatted = i3string_from_utf8(formatted_str);
2267 i3string_set_markup(formatted, pango_markup);
2268 FREE(formatted_str);
2270 for (size_t i = 0; i < num; i++) {
2271 FREE(placeholders[i].value);
2278 * Swaps the two containers.
2281 bool con_swap(Con *first, Con *second) {
2282 assert(first != NULL);
2283 assert(second != NULL);
2284 DLOG("Swapping containers %p / %p\n", first, second);
2286 if (first->type != CT_CON) {
2287 ELOG("Only regular containers can be swapped, but found con = %p with type = %d.\n", first, first->type);
2291 if (second->type != CT_CON) {
2292 ELOG("Only regular containers can be swapped, but found con = %p with type = %d.\n", second, second->type);
2296 if (first == second) {
2297 DLOG("Swapping container %p with itself, nothing to do.\n", first);
2301 if (con_has_parent(first, second) || con_has_parent(second, first)) {
2302 ELOG("Cannot swap containers %p and %p because they are in a parent-child relationship.\n", first, second);
2306 Con *ws1 = con_get_workspace(first);
2307 Con *ws2 = con_get_workspace(second);
2308 Con *restore_focus = NULL;
2309 if (ws1 == ws2 && ws1 == con_get_workspace(focused)) {
2310 /* Preserve focus in the current workspace. */
2311 restore_focus = focused;
2312 } else if (first == focused || con_has_parent(focused, first)) {
2313 restore_focus = second;
2314 } else if (second == focused || con_has_parent(focused, second)) {
2315 restore_focus = first;
2318 #define SWAP_CONS_IN_TREE(headname, field) \
2320 struct headname *head1 = &(first->parent->headname); \
2321 struct headname *head2 = &(second->parent->headname); \
2322 Con *first_prev = TAILQ_PREV(first, headname, field); \
2323 Con *second_prev = TAILQ_PREV(second, headname, field); \
2324 if (second_prev == first) { \
2325 TAILQ_SWAP(first, second, head1, field); \
2326 } else if (first_prev == second) { \
2327 TAILQ_SWAP(second, first, head1, field); \
2329 TAILQ_REMOVE(head1, first, field); \
2330 TAILQ_REMOVE(head2, second, field); \
2331 if (second_prev == NULL) { \
2332 TAILQ_INSERT_HEAD(head2, first, field); \
2334 TAILQ_INSERT_AFTER(head2, second_prev, first, field); \
2336 if (first_prev == NULL) { \
2337 TAILQ_INSERT_HEAD(head1, second, field); \
2339 TAILQ_INSERT_AFTER(head1, first_prev, second, field); \
2344 SWAP_CONS_IN_TREE(nodes_head, nodes);
2345 SWAP_CONS_IN_TREE(focus_head, focused);
2346 SWAP(first->parent, second->parent, Con *);
2348 /* Floating nodes are children of CT_FLOATING_CONs, they are listed in
2349 * nodes_head and focus_head like all other containers. Thus, we don't need
2350 * to do anything special other than swapping the floating status and the
2351 * relevant rects. */
2352 SWAP(first->floating, second->floating, int);
2353 SWAP(first->rect, second->rect, Rect);
2354 SWAP(first->window_rect, second->window_rect, Rect);
2356 /* We need to copy each other's percentages to ensure that the geometry
2357 * doesn't change during the swap. */
2358 SWAP(first->percent, second->percent, double);
2360 if (restore_focus) {
2361 con_focus(restore_focus);
2364 /* Update new parents' & workspaces' urgency. */
2365 con_set_urgency(first, first->urgent);
2366 con_set_urgency(second, second->urgent);
2368 /* Exchange fullscreen modes, can't use SWAP because we need to call the
2369 * correct functions. */
2370 fullscreen_mode_t second_fullscreen_mode = second->fullscreen_mode;
2371 if (first->fullscreen_mode == CF_NONE) {
2372 con_disable_fullscreen(second);
2374 con_enable_fullscreen(second, first->fullscreen_mode);
2376 if (second_fullscreen_mode == CF_NONE) {
2377 con_disable_fullscreen(first);
2379 con_enable_fullscreen(first, second_fullscreen_mode);
2382 /* We don't actually need this since percentages-wise we haven't changed
2383 * anything, but we'll better be safe than sorry and just make sure as we'd
2384 * otherwise crash i3. */
2385 con_fix_percent(first->parent);
2386 con_fix_percent(second->parent);
2388 con_force_split_parents_redraw(first);
2389 con_force_split_parents_redraw(second);
2395 * Returns container's rect size depending on its orientation.
2396 * i.e. its width when horizontal, its height when vertical.
2399 uint32_t con_rect_size_in_orientation(Con *con) {
2400 return (con_orientation(con) == HORIZ ? con->rect.width : con->rect.height);