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);
247 /* Focusing a container with a floating parent should raise it to the top. Since
248 * con_focus is called recursively for each parent we don't need to use
249 * con_inside_floating(). */
250 if (con->type == CT_FLOATING_CON) {
251 floating_raise_con(con);
256 * Raise container to the top if it is floating or inside some floating
260 static void con_raise(Con *con) {
261 Con *floating = con_inside_floating(con);
263 floating_raise_con(floating);
268 * Sets input focus to the given container and raises it to the top.
271 void con_activate(Con *con) {
277 * Closes the given container.
280 void con_close(Con *con, kill_window_t kill_window) {
282 DLOG("Closing con = %p.\n", con);
284 /* We never close output or root containers. */
285 if (con->type == CT_OUTPUT || con->type == CT_ROOT) {
286 DLOG("con = %p is of type %d, not closing anything.\n", con, con->type);
290 if (con->type == CT_WORKSPACE) {
291 DLOG("con = %p is a workspace, closing all children instead.\n", con);
292 Con *child, *nextchild;
293 for (child = TAILQ_FIRST(&(con->focus_head)); child;) {
294 nextchild = TAILQ_NEXT(child, focused);
295 DLOG("killing child = %p.\n", child);
296 tree_close_internal(child, kill_window, false, false);
303 tree_close_internal(con, kill_window, false, false);
307 * Returns true when this node is a leaf node (has no children)
310 bool con_is_leaf(Con *con) {
311 return TAILQ_EMPTY(&(con->nodes_head));
315 * Returns true when this con is a leaf node with a managed X11 window (e.g.,
316 * excluding dock containers)
318 bool con_has_managed_window(Con *con) {
319 return (con != NULL && con->window != NULL && con->window->id != XCB_WINDOW_NONE && con_get_workspace(con) != NULL);
323 * Returns true if this node has regular or floating children.
326 bool con_has_children(Con *con) {
327 return (!con_is_leaf(con) || !TAILQ_EMPTY(&(con->floating_head)));
331 * Returns true if a container should be considered split.
334 bool con_is_split(Con *con) {
335 if (con_is_leaf(con))
338 switch (con->layout) {
349 * This will only return true for containers which have some parent with
350 * a tabbed / stacked parent of which they are not the currently focused child.
353 bool con_is_hidden(Con *con) {
356 /* ascend to the workspace level and memorize the highest-up container
357 * which is stacked or tabbed. */
358 while (current != NULL && current->type != CT_WORKSPACE) {
359 Con *parent = current->parent;
360 if (parent != NULL && (parent->layout == L_TABBED || parent->layout == L_STACKED)) {
361 if (TAILQ_FIRST(&(parent->focus_head)) != current)
372 * Returns whether the container or any of its children is sticky.
375 bool con_is_sticky(Con *con) {
380 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
381 if (con_is_sticky(child))
389 * Returns true if this node accepts a window (if the node swallows windows,
390 * it might already have swallowed enough and cannot hold any more).
393 bool con_accepts_window(Con *con) {
394 /* 1: workspaces never accept direct windows */
395 if (con->type == CT_WORKSPACE)
398 if (con_is_split(con)) {
399 DLOG("container %p does not accept windows, it is a split container.\n", con);
403 /* TODO: if this is a swallowing container, we need to check its max_clients */
404 return (con->window == NULL);
408 * Gets the output container (first container with CT_OUTPUT in hierarchy) this
412 Con *con_get_output(Con *con) {
414 while (result != NULL && result->type != CT_OUTPUT)
415 result = result->parent;
416 /* We must be able to get an output because focus can never be set higher
417 * in the tree (root node cannot be focused). */
418 assert(result != NULL);
423 * Gets the workspace container this node is on.
426 Con *con_get_workspace(Con *con) {
428 while (result != NULL && result->type != CT_WORKSPACE)
429 result = result->parent;
434 * Searches parents of the given 'con' until it reaches one with the specified
435 * 'orientation'. Aborts when it comes across a floating_con.
438 Con *con_parent_with_orientation(Con *con, orientation_t orientation) {
439 DLOG("Searching for parent of Con %p with orientation %d\n", con, orientation);
440 Con *parent = con->parent;
441 if (parent->type == CT_FLOATING_CON)
443 while (con_orientation(parent) != orientation) {
444 DLOG("Need to go one level further up\n");
445 parent = parent->parent;
446 /* Abort when we reach a floating con, or an output con */
448 (parent->type == CT_FLOATING_CON ||
449 parent->type == CT_OUTPUT ||
450 (parent->parent && parent->parent->type == CT_OUTPUT)))
455 DLOG("Result: %p\n", parent);
460 * helper data structure for the breadth-first-search in
461 * con_get_fullscreen_con()
467 TAILQ_ENTRY(bfs_entry)
472 * Returns the first fullscreen node below this node.
475 Con *con_get_fullscreen_con(Con *con, fullscreen_mode_t fullscreen_mode) {
476 Con *current, *child;
478 /* TODO: is breadth-first-search really appropriate? (check as soon as
479 * fullscreen levels and fullscreen for containers is implemented) */
480 TAILQ_HEAD(bfs_head, bfs_entry)
481 bfs_head = TAILQ_HEAD_INITIALIZER(bfs_head);
483 struct bfs_entry *entry = smalloc(sizeof(struct bfs_entry));
485 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
487 while (!TAILQ_EMPTY(&bfs_head)) {
488 entry = TAILQ_FIRST(&bfs_head);
489 current = entry->con;
490 if (current != con && current->fullscreen_mode == fullscreen_mode) {
491 /* empty the queue */
492 while (!TAILQ_EMPTY(&bfs_head)) {
493 entry = TAILQ_FIRST(&bfs_head);
494 TAILQ_REMOVE(&bfs_head, entry, entries);
500 TAILQ_REMOVE(&bfs_head, entry, entries);
503 TAILQ_FOREACH(child, &(current->nodes_head), nodes) {
504 entry = smalloc(sizeof(struct bfs_entry));
506 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
509 TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
510 entry = smalloc(sizeof(struct bfs_entry));
512 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
520 * Returns true if the container is internal, such as __i3_scratch
523 bool con_is_internal(Con *con) {
524 return (con->name[0] == '_' && con->name[1] == '_');
528 * Returns true if the node is floating.
531 bool con_is_floating(Con *con) {
533 DLOG("checking if con %p is floating\n", con);
534 return (con->floating >= FLOATING_AUTO_ON);
538 * Returns true if the container is a docked container.
541 bool con_is_docked(Con *con) {
542 if (con->parent == NULL)
545 if (con->parent->type == CT_DOCKAREA)
548 return con_is_docked(con->parent);
552 * Checks if the given container is either floating or inside some floating
553 * container. It returns the FLOATING_CON container.
556 Con *con_inside_floating(Con *con) {
558 if (con->type == CT_FLOATING_CON)
561 if (con->floating >= FLOATING_AUTO_ON)
564 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
567 return con_inside_floating(con->parent);
571 * Checks if the given container is inside a focused container.
574 bool con_inside_focused(Con *con) {
579 return con_inside_focused(con->parent);
583 * Checks if the container has the given parent as an actual parent.
586 bool con_has_parent(Con *con, Con *parent) {
587 Con *current = con->parent;
588 if (current == NULL) {
592 if (current == parent) {
596 return con_has_parent(current, parent);
600 * Returns the container with the given client window ID or NULL if no such
604 Con *con_by_window_id(xcb_window_t window) {
606 TAILQ_FOREACH(con, &all_cons, all_cons)
607 if (con->window != NULL && con->window->id == window)
613 * Returns the container with the given container ID or NULL if no such
617 Con *con_by_con_id(long target) {
619 TAILQ_FOREACH(con, &all_cons, all_cons) {
620 if (con == (Con *)target) {
629 * Returns true if the given container (still) exists.
630 * This can be used, e.g., to make sure a container hasn't been closed in the meantime.
633 bool con_exists(Con *con) {
634 return con_by_con_id((long)con) != NULL;
638 * Returns the container with the given frame ID or NULL if no such container
642 Con *con_by_frame_id(xcb_window_t frame) {
644 TAILQ_FOREACH(con, &all_cons, all_cons)
645 if (con->frame.id == frame)
651 * Returns the container with the given mark or NULL if no such container
655 Con *con_by_mark(const char *mark) {
657 TAILQ_FOREACH(con, &all_cons, all_cons) {
658 if (con_has_mark(con, mark))
666 * Returns true if and only if the given containers holds the mark.
669 bool con_has_mark(Con *con, const char *mark) {
671 TAILQ_FOREACH(current, &(con->marks_head), marks) {
672 if (strcmp(current->name, mark) == 0)
680 * Toggles the mark on a container.
681 * If the container already has this mark, the mark is removed.
682 * Otherwise, the mark is assigned to the container.
685 void con_mark_toggle(Con *con, const char *mark, mark_mode_t mode) {
687 DLOG("Toggling mark \"%s\" on con = %p.\n", mark, con);
689 if (con_has_mark(con, mark)) {
690 con_unmark(con, mark);
692 con_mark(con, mark, mode);
697 * Assigns a mark to the container.
700 void con_mark(Con *con, const char *mark, mark_mode_t mode) {
702 DLOG("Setting mark \"%s\" on con = %p.\n", mark, con);
704 con_unmark(NULL, mark);
705 if (mode == MM_REPLACE) {
706 DLOG("Removing all existing marks on con = %p.\n", con);
709 while (!TAILQ_EMPTY(&(con->marks_head))) {
710 current = TAILQ_FIRST(&(con->marks_head));
711 con_unmark(con, current->name);
715 mark_t *new = scalloc(1, sizeof(mark_t));
716 new->name = sstrdup(mark);
717 TAILQ_INSERT_TAIL(&(con->marks_head), new, marks);
718 ipc_send_window_event("mark", con);
720 con->mark_changed = true;
724 * Removes marks from containers.
725 * If con is NULL, all containers are considered.
726 * If name is NULL, this removes all existing marks.
727 * Otherwise, it will only remove the given mark (if it is present).
730 void con_unmark(Con *con, const char *name) {
733 DLOG("Unmarking all containers.\n");
734 TAILQ_FOREACH(current, &all_cons, all_cons) {
735 if (con != NULL && current != con)
738 if (TAILQ_EMPTY(&(current->marks_head)))
742 while (!TAILQ_EMPTY(&(current->marks_head))) {
743 mark = TAILQ_FIRST(&(current->marks_head));
745 TAILQ_REMOVE(&(current->marks_head), mark, marks);
748 ipc_send_window_event("mark", current);
751 current->mark_changed = true;
754 DLOG("Removing mark \"%s\".\n", name);
755 current = (con == NULL) ? con_by_mark(name) : con;
756 if (current == NULL) {
757 DLOG("No container found with this mark, so there is nothing to do.\n");
761 DLOG("Found mark on con = %p. Removing it now.\n", current);
762 current->mark_changed = true;
765 TAILQ_FOREACH(mark, &(current->marks_head), marks) {
766 if (strcmp(mark->name, name) != 0)
770 TAILQ_REMOVE(&(current->marks_head), mark, marks);
773 ipc_send_window_event("mark", current);
780 * Returns the first container below 'con' which wants to swallow this window
784 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
787 //DLOG("searching con for window %p starting at con %p\n", window, con);
788 //DLOG("class == %s\n", window->class_class);
790 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
791 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
792 if (!match_matches_window(match, window))
794 if (store_match != NULL)
795 *store_match = match;
798 Con *result = con_for_window(child, window, store_match);
803 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
804 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
805 if (!match_matches_window(match, window))
807 if (store_match != NULL)
808 *store_match = match;
811 Con *result = con_for_window(child, window, store_match);
819 static int num_focus_heads(Con *con) {
823 TAILQ_FOREACH(current, &(con->focus_head), focused) {
831 * Iterate over the container's focus stack and return an array with the
832 * containers inside it, ordered from higher focus order to lowest.
835 Con **get_focus_order(Con *con) {
836 const int focus_heads = num_focus_heads(con);
837 Con **focus_order = smalloc(focus_heads * sizeof(Con *));
840 TAILQ_FOREACH(current, &(con->focus_head), focused) {
841 assert(idx < focus_heads);
842 focus_order[idx++] = current;
849 * Clear the container's focus stack and re-add it using the provided container
850 * array. The function doesn't check if the provided array contains the same
851 * containers with the previous focus stack but will not add floating containers
852 * in the new focus stack if container is not a workspace.
855 void set_focus_order(Con *con, Con **focus_order) {
857 while (!TAILQ_EMPTY(&(con->focus_head))) {
858 Con *current = TAILQ_FIRST(&(con->focus_head));
860 TAILQ_REMOVE(&(con->focus_head), current, focused);
864 for (int idx = 0; idx < focus_heads; idx++) {
865 /* Useful when encapsulating a workspace. */
866 if (con->type != CT_WORKSPACE && con_inside_floating(focus_order[idx])) {
871 TAILQ_INSERT_TAIL(&(con->focus_head), focus_order[idx], focused);
876 * Returns the number of children of this container.
879 int con_num_children(Con *con) {
883 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
890 * Returns the number of visible non-floating children of this container.
891 * For example, if the container contains a hsplit which has two children,
892 * this will return 2 instead of 1.
894 int con_num_visible_children(Con *con) {
900 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
901 /* Visible leaf nodes are a child. */
902 if (!con_is_hidden(current) && con_is_leaf(current))
904 /* All other containers need to be recursed. */
906 children += con_num_visible_children(current);
913 * Count the number of windows (i.e., leaf containers).
916 int con_num_windows(Con *con) {
920 if (con_has_managed_window(con))
925 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
926 num += con_num_windows(current);
933 * Updates the percent attribute of the children of the given container. This
934 * function needs to be called when a window is added or removed from a
938 void con_fix_percent(Con *con) {
940 int children = con_num_children(con);
942 // calculate how much we have distributed and how many containers
943 // with a percentage set we have
945 int children_with_percent = 0;
946 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
947 if (child->percent > 0.0) {
948 total += child->percent;
949 ++children_with_percent;
953 // if there were children without a percentage set, set to a value that
954 // will make those children proportional to all others
955 if (children_with_percent != children) {
956 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
957 if (child->percent <= 0.0) {
958 if (children_with_percent == 0) {
959 total += (child->percent = 1.0);
961 total += (child->percent = total / children_with_percent);
967 // if we got a zero, just distribute the space equally, otherwise
968 // distribute according to the proportions we got
970 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
971 child->percent = 1.0 / children;
973 } else if (total != 1.0) {
974 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
975 child->percent /= total;
981 * Toggles fullscreen mode for the given container. If there already is a
982 * fullscreen container on this workspace, fullscreen will be disabled and then
983 * enabled for the container the user wants to have in fullscreen mode.
986 void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
987 if (con->type == CT_WORKSPACE) {
988 DLOG("You cannot make a workspace fullscreen.\n");
992 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
994 if (con->fullscreen_mode == CF_NONE)
995 con_enable_fullscreen(con, fullscreen_mode);
997 con_disable_fullscreen(con);
1001 * Sets the specified fullscreen mode for the given container, sends the
1002 * “fullscreen_mode” event and changes the XCB fullscreen property of the
1003 * container’s window, if any.
1006 static void con_set_fullscreen_mode(Con *con, fullscreen_mode_t fullscreen_mode) {
1007 con->fullscreen_mode = fullscreen_mode;
1009 DLOG("mode now: %d\n", con->fullscreen_mode);
1011 /* Send an ipc window "fullscreen_mode" event */
1012 ipc_send_window_event("fullscreen_mode", con);
1014 /* update _NET_WM_STATE if this container has a window */
1015 /* TODO: when a window is assigned to a container which is already
1016 * fullscreened, this state needs to be pushed to the client, too */
1017 if (con->window == NULL)
1020 if (con->fullscreen_mode != CF_NONE) {
1021 DLOG("Setting _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
1022 xcb_add_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
1024 DLOG("Removing _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
1025 xcb_remove_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
1030 * Enables fullscreen mode for the given container, if necessary.
1032 * If the container’s mode is already CF_OUTPUT or CF_GLOBAL, the container is
1033 * kept fullscreen but its mode is set to CF_GLOBAL and CF_OUTPUT,
1036 * Other fullscreen containers will be disabled first, if they hide the new
1040 void con_enable_fullscreen(Con *con, fullscreen_mode_t fullscreen_mode) {
1041 if (con->type == CT_WORKSPACE) {
1042 DLOG("You cannot make a workspace fullscreen.\n");
1046 assert(fullscreen_mode == CF_GLOBAL || fullscreen_mode == CF_OUTPUT);
1048 if (fullscreen_mode == CF_GLOBAL)
1049 DLOG("enabling global fullscreen for %p / %s\n", con, con->name);
1051 DLOG("enabling fullscreen for %p / %s\n", con, con->name);
1053 if (con->fullscreen_mode == fullscreen_mode) {
1054 DLOG("fullscreen already enabled for %p / %s\n", con, con->name);
1058 Con *con_ws = con_get_workspace(con);
1060 /* Disable any fullscreen container that would conflict the new one. */
1061 Con *fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
1062 if (fullscreen == NULL)
1063 fullscreen = con_get_fullscreen_con(con_ws, CF_OUTPUT);
1064 if (fullscreen != NULL)
1065 con_disable_fullscreen(fullscreen);
1067 /* Set focus to new fullscreen container. Unless in global fullscreen mode
1068 * and on another workspace restore focus afterwards.
1069 * Switch to the container’s workspace if mode is global. */
1070 Con *cur_ws = con_get_workspace(focused);
1071 Con *old_focused = focused;
1072 if (fullscreen_mode == CF_GLOBAL && cur_ws != con_ws)
1073 workspace_show(con_ws);
1075 if (fullscreen_mode != CF_GLOBAL && cur_ws != con_ws)
1076 con_activate(old_focused);
1078 con_set_fullscreen_mode(con, fullscreen_mode);
1082 * Disables fullscreen mode for the given container regardless of the mode, if
1086 void con_disable_fullscreen(Con *con) {
1087 if (con->type == CT_WORKSPACE) {
1088 DLOG("You cannot make a workspace fullscreen.\n");
1092 DLOG("disabling fullscreen for %p / %s\n", con, con->name);
1094 if (con->fullscreen_mode == CF_NONE) {
1095 DLOG("fullscreen already disabled for %p / %s\n", con, con->name);
1099 con_set_fullscreen_mode(con, CF_NONE);
1102 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) {
1103 Con *orig_target = target;
1105 /* Prevent moving if this would violate the fullscreen focus restrictions. */
1106 Con *target_ws = con_get_workspace(target);
1107 if (!con_fullscreen_permits_focusing(target_ws)) {
1108 LOG("Cannot move out of a fullscreen container.\n");
1112 if (con_is_floating(con)) {
1113 DLOG("Container is floating, using parent instead.\n");
1117 Con *source_ws = con_get_workspace(con);
1119 if (con->type == CT_WORKSPACE) {
1120 /* Re-parent all of the old workspace's floating windows. */
1122 while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
1123 child = TAILQ_FIRST(&(source_ws->floating_head));
1124 con_move_to_workspace(child, target_ws, true, true, false);
1127 /* If there are no non-floating children, ignore the workspace. */
1128 if (con_is_leaf(con))
1131 con = workspace_encapsulate(con);
1133 ELOG("Workspace failed to move its contents into a container!\n");
1138 /* Save the urgency state so that we can restore it. */
1139 bool urgent = con->urgent;
1141 /* Save the current workspace. So we can call workspace_show() by the end
1142 * of this function. */
1143 Con *current_ws = con_get_workspace(focused);
1145 Con *source_output = con_get_output(con),
1146 *dest_output = con_get_output(target_ws);
1148 /* 1: save the container which is going to be focused after the current
1149 * container is moved away */
1150 Con *focus_next = con_next_focused(con);
1152 /* 2: we go up one level, but only when target is a normal container */
1153 if (target->type != CT_WORKSPACE) {
1154 DLOG("target originally = %p / %s / type %d\n", target, target->name, target->type);
1155 target = target->parent;
1158 /* 3: if the target container is floating, we get the workspace instead.
1159 * Only tiling windows need to get inserted next to the current container.
1161 Con *floatingcon = con_inside_floating(target);
1162 if (floatingcon != NULL) {
1163 DLOG("floatingcon, going up even further\n");
1164 target = floatingcon->parent;
1167 if (con->type == CT_FLOATING_CON) {
1168 Con *ws = con_get_workspace(target);
1169 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
1173 if (source_output != dest_output) {
1174 /* Take the relative coordinates of the current output, then add them
1175 * to the coordinate space of the correct output */
1176 if (fix_coordinates && con->type == CT_FLOATING_CON) {
1177 floating_fix_coordinates(con, &(source_output->rect), &(dest_output->rect));
1179 DLOG("Not fixing coordinates, fix_coordinates flag = %d\n", fix_coordinates);
1181 /* If moving to a visible workspace, call show so it can be considered
1182 * focused. Must do before attaching because workspace_show checks to see
1183 * if focused container is in its area. */
1184 if (!ignore_focus && workspace_is_visible(target_ws)) {
1185 workspace_show(target_ws);
1187 /* Don’t warp if told so (when dragging floating windows with the
1188 * mouse for example) */
1190 x_set_warp_to(NULL);
1192 x_set_warp_to(&(con->rect));
1196 /* If moving a fullscreen container and the destination already has a
1197 * fullscreen window on it, un-fullscreen the target's fullscreen con. */
1198 Con *fullscreen = con_get_fullscreen_con(target_ws, CF_OUTPUT);
1199 if (con->fullscreen_mode != CF_NONE && fullscreen != NULL) {
1200 con_toggle_fullscreen(fullscreen, CF_OUTPUT);
1204 DLOG("Re-attaching container to %p / %s\n", target, target->name);
1205 /* 4: re-attach the con to the parent of this focused container */
1206 Con *parent = con->parent;
1208 _con_attach(con, target, behind_focused ? NULL : orig_target, !behind_focused);
1210 /* 5: fix the percentages */
1211 if (fix_percentage) {
1212 con_fix_percent(parent);
1214 con_fix_percent(target);
1217 /* 6: focus the con on the target workspace, but only within that
1218 * workspace, that is, don’t move focus away if the target workspace is
1220 * We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
1221 * we don’t focus when there is a fullscreen con on that workspace. We
1222 * also don't do it if the caller requested to ignore focus. */
1223 if (!ignore_focus && !con_is_internal(target_ws) && !fullscreen) {
1224 /* We need to save the focused workspace on the output in case the
1225 * new workspace is hidden and it's necessary to immediately switch
1226 * back to the originally-focused workspace. */
1227 Con *old_focus = TAILQ_FIRST(&(output_get_content(dest_output)->focus_head));
1228 con_activate(con_descend_focused(con));
1230 /* Restore focus if the output's focused workspace has changed. */
1231 if (con_get_workspace(focused) != old_focus)
1232 con_activate(old_focus);
1235 /* 7: when moving to another workspace, we leave the focus on the current
1236 * workspace. (see also #809) */
1238 /* Descend focus stack in case focus_next is a workspace which can
1239 * occur if we move to the same workspace. Also show current workspace
1240 * to ensure it is focused. */
1241 if (!ignore_focus) {
1242 workspace_show(current_ws);
1244 DLOG("x_set_warp_to(NULL) because dont_warp is set\n");
1245 x_set_warp_to(NULL);
1249 /* Set focus only if con was on current workspace before moving.
1250 * Otherwise we would give focus to some window on different workspace. */
1251 if (!ignore_focus && source_ws == current_ws)
1252 con_activate(con_descend_focused(focus_next));
1254 /* 8. If anything within the container is associated with a startup sequence,
1255 * delete it so child windows won't be created on the old workspace. */
1256 struct Startup_Sequence *sequence;
1257 xcb_get_property_cookie_t cookie;
1258 xcb_get_property_reply_t *startup_id_reply;
1260 if (!con_is_leaf(con)) {
1262 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1266 cookie = xcb_get_property(conn, false, child->window->id,
1267 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1268 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1270 sequence = startup_sequence_get(child->window, startup_id_reply, true);
1271 if (sequence != NULL)
1272 startup_sequence_delete(sequence);
1277 cookie = xcb_get_property(conn, false, con->window->id,
1278 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1279 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1281 sequence = startup_sequence_get(con->window, startup_id_reply, true);
1282 if (sequence != NULL)
1283 startup_sequence_delete(sequence);
1286 /* 9. If the container was marked urgent, move the urgency hint. */
1288 workspace_update_urgent_flag(source_ws);
1289 con_set_urgency(con, true);
1292 /* Ensure the container will be redrawn. */
1293 FREE(con->deco_render_params);
1295 CALL(parent, on_remove_child);
1297 ipc_send_window_event("move", con);
1298 ewmh_update_wm_desktop();
1303 * Moves the given container to the given mark.
1306 bool con_move_to_mark(Con *con, const char *mark) {
1307 Con *target = con_by_mark(mark);
1308 if (target == NULL) {
1309 DLOG("found no container with mark \"%s\"\n", mark);
1313 /* For floating target containers, we just send the window to the same workspace. */
1314 if (con_is_floating(target)) {
1315 DLOG("target container is floating, moving container to target's workspace.\n");
1316 con_move_to_workspace(con, con_get_workspace(target), true, false, false);
1320 if (con->type == CT_WORKSPACE) {
1321 DLOG("target container is a workspace, simply moving the container there.\n");
1322 con_move_to_workspace(con, target, true, false, false);
1326 /* For split containers, we use the currently focused container within it.
1327 * This allows setting marks on, e.g., tabbed containers which will move
1328 * con to a new tab behind the focused tab. */
1329 if (con_is_split(target)) {
1330 DLOG("target is a split container, descending to the currently focused child.\n");
1331 target = TAILQ_FIRST(&(target->focus_head));
1334 if (con == target || con_has_parent(target, con)) {
1335 DLOG("cannot move the container to or inside itself, aborting.\n");
1339 return _con_move_to_con(con, target, false, true, false, false, true);
1343 * Moves the given container to the currently focused container on the given
1346 * The fix_coordinates flag will translate the current coordinates (offset from
1347 * the monitor position basically) to appropriate coordinates on the
1348 * destination workspace.
1349 * Not enabling this behaviour comes in handy when this function gets called by
1350 * floating_maybe_reassign_ws, which will only "move" a floating window when it
1351 * *already* changed its coordinates to a different output.
1353 * The dont_warp flag disables pointer warping and will be set when this
1354 * function is called while dragging a floating window.
1356 * If ignore_focus is set, the container will be moved without modifying focus
1359 * TODO: is there a better place for this function?
1362 void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
1363 assert(workspace->type == CT_WORKSPACE);
1365 Con *source_ws = con_get_workspace(con);
1366 if (workspace == source_ws) {
1367 DLOG("Not moving, already there\n");
1371 Con *target = con_descend_focused(workspace);
1372 _con_move_to_con(con, target, true, fix_coordinates, dont_warp, ignore_focus, true);
1376 * Moves the given container to the currently focused container on the
1377 * visible workspace on the given output.
1380 void con_move_to_output(Con *con, Output *output, bool fix_coordinates) {
1382 GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1384 DLOG("Moving con %p to output %s\n", con, output_primary_name(output));
1385 con_move_to_workspace(con, ws, fix_coordinates, false, false);
1389 * Moves the given container to the currently focused container on the
1390 * visible workspace on the output specified by the given name.
1391 * The current output for the container is used to resolve relative names
1392 * such as left, right, up, down.
1395 bool con_move_to_output_name(Con *con, const char *name, bool fix_coordinates) {
1396 Output *current_output = get_output_for_con(con);
1397 assert(current_output != NULL);
1399 Output *output = get_output_from_string(current_output, name);
1400 if (output == NULL) {
1401 ELOG("Could not find output \"%s\"\n", name);
1405 con_move_to_output(con, output, fix_coordinates);
1410 * Returns the orientation of the given container (for stacked containers,
1411 * vertical orientation is used regardless of the actual orientation of the
1415 orientation_t con_orientation(Con *con) {
1416 switch (con->layout) {
1418 /* stacking containers behave like they are in vertical orientation */
1423 /* tabbed containers behave like they are in vertical orientation */
1428 DLOG("Someone called con_orientation() on a con with L_DEFAULT, this is a bug in the code.\n");
1434 DLOG("con_orientation() called on dockarea/output (%d) container %p\n", con->layout, con);
1439 DLOG("con_orientation() ran into default\n");
1445 * Returns the container which will be focused next when the given container
1446 * is not available anymore. Called in tree_close_internal and con_move_to_workspace
1447 * to properly restore focus.
1450 Con *con_next_focused(Con *con) {
1452 /* floating containers are attached to a workspace, so we focus either the
1453 * next floating container (if any) or the workspace itself. */
1454 if (con->type == CT_FLOATING_CON) {
1455 DLOG("selecting next for CT_FLOATING_CON\n");
1456 next = TAILQ_NEXT(con, floating_windows);
1457 DLOG("next = %p\n", next);
1459 next = TAILQ_PREV(con, floating_head, floating_windows);
1460 DLOG("using prev, next = %p\n", next);
1463 Con *ws = con_get_workspace(con);
1465 DLOG("no more floating containers for next = %p, restoring workspace focus\n", next);
1466 while (next != TAILQ_END(&(ws->focus_head)) && !TAILQ_EMPTY(&(next->focus_head))) {
1467 next = TAILQ_FIRST(&(next->focus_head));
1469 DLOG("skipping container itself, we want the next client\n");
1470 next = TAILQ_NEXT(next, focused);
1473 if (next == TAILQ_END(&(ws->focus_head))) {
1474 DLOG("Focus list empty, returning ws\n");
1478 /* Instead of returning the next CT_FLOATING_CON, we descend it to
1479 * get an actual window to focus. */
1480 next = con_descend_focused(next);
1485 /* dock clients cannot be focused, so we focus the workspace instead */
1486 if (con->parent->type == CT_DOCKAREA) {
1487 DLOG("selecting workspace for dock client\n");
1488 return con_descend_focused(output_get_content(con->parent->parent));
1491 /* if 'con' is not the first entry in the focus stack, use the first one as
1492 * it’s currently focused already */
1493 Con *first = TAILQ_FIRST(&(con->parent->focus_head));
1495 DLOG("Using first entry %p\n", first);
1498 /* try to focus the next container on the same level as this one or fall
1499 * back to its parent */
1500 if (!(next = TAILQ_NEXT(con, focused))) {
1505 /* now go down the focus stack as far as
1506 * possible, excluding the current container */
1507 while (!TAILQ_EMPTY(&(next->focus_head)) && TAILQ_FIRST(&(next->focus_head)) != con) {
1508 next = TAILQ_FIRST(&(next->focus_head));
1515 * Get the next/previous container in the specified orientation. This may
1516 * travel up until it finds a container with suitable orientation.
1519 Con *con_get_next(Con *con, char way, orientation_t orientation) {
1520 DLOG("con_get_next(way=%c, orientation=%d)\n", way, orientation);
1521 /* 1: get the first parent with the same orientation */
1523 while (con_orientation(cur->parent) != orientation) {
1524 DLOG("need to go one level further up\n");
1525 if (cur->parent->type == CT_WORKSPACE) {
1526 LOG("that's a workspace, we can't go further up\n");
1532 /* 2: chose next (or previous) */
1535 next = TAILQ_NEXT(cur, nodes);
1536 /* if we are at the end of the list, we need to wrap */
1537 if (next == TAILQ_END(&(parent->nodes_head)))
1540 next = TAILQ_PREV(cur, nodes_head, nodes);
1541 /* if we are at the end of the list, we need to wrap */
1542 if (next == TAILQ_END(&(cur->nodes_head)))
1545 DLOG("next = %p\n", next);
1551 * Returns the focused con inside this client, descending the tree as far as
1552 * possible. This comes in handy when attaching a con to a workspace at the
1553 * currently focused position, for example.
1556 Con *con_descend_focused(Con *con) {
1558 while (next != focused && !TAILQ_EMPTY(&(next->focus_head)))
1559 next = TAILQ_FIRST(&(next->focus_head));
1564 * Returns the focused con inside this client, descending the tree as far as
1565 * possible. This comes in handy when attaching a con to a workspace at the
1566 * currently focused position, for example.
1568 * Works like con_descend_focused but considers only tiling cons.
1571 Con *con_descend_tiling_focused(Con *con) {
1575 if (next == focused)
1579 TAILQ_FOREACH(child, &(next->focus_head), focused) {
1580 if (child->type == CT_FLOATING_CON)
1586 } while (before != next && next != focused);
1591 * Returns the leftmost, rightmost, etc. container in sub-tree. For example, if
1592 * direction is D_LEFT, then we return the rightmost container and if direction
1593 * is D_RIGHT, we return the leftmost container. This is because if we are
1594 * moving D_LEFT, and thus want the rightmost container.
1597 Con *con_descend_direction(Con *con, direction_t direction) {
1600 int orientation = con_orientation(con);
1601 DLOG("con_descend_direction(%p, orientation %d, direction %d)\n", con, orientation, direction);
1602 if (direction == D_LEFT || direction == D_RIGHT) {
1603 if (orientation == HORIZ) {
1604 /* If the direction is horizontal, we can use either the first
1605 * (D_RIGHT) or the last con (D_LEFT) */
1606 if (direction == D_RIGHT)
1607 most = TAILQ_FIRST(&(con->nodes_head));
1609 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1610 } else if (orientation == VERT) {
1611 /* Wrong orientation. We use the last focused con. Within that con,
1612 * we recurse to chose the left/right con or at least the last
1614 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1615 if (current->type != CT_FLOATING_CON) {
1621 /* If the con has no orientation set, it’s not a split container
1622 * but a container with a client window, so stop recursing */
1627 if (direction == D_UP || direction == D_DOWN) {
1628 if (orientation == VERT) {
1629 /* If the direction is vertical, we can use either the first
1630 * (D_DOWN) or the last con (D_UP) */
1631 if (direction == D_UP)
1632 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1634 most = TAILQ_FIRST(&(con->nodes_head));
1635 } else if (orientation == HORIZ) {
1636 /* Wrong orientation. We use the last focused con. Within that con,
1637 * we recurse to chose the top/bottom con or at least the last
1639 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1640 if (current->type != CT_FLOATING_CON) {
1646 /* If the con has no orientation set, it’s not a split container
1647 * but a container with a client window, so stop recursing */
1654 return con_descend_direction(most, direction);
1658 * Returns a "relative" Rect which contains the amount of pixels that need to
1659 * be added to the original Rect to get the final position (obviously the
1660 * amount of pixels for normal, 1pixel and borderless are different).
1663 Rect con_border_style_rect(Con *con) {
1664 if (config.hide_edge_borders == HEBM_SMART && con_num_visible_children(con_get_workspace(con)) <= 1) {
1665 if (!con_is_floating(con)) {
1666 return (Rect){0, 0, 0, 0};
1670 adjacent_t borders_to_hide = ADJ_NONE;
1671 int border_width = con->current_border_width;
1672 DLOG("The border width for con is set to: %d\n", con->current_border_width);
1674 if (con->current_border_width < 0) {
1675 if (con_is_floating(con)) {
1676 border_width = config.default_floating_border_width;
1678 border_width = config.default_border_width;
1681 DLOG("Effective border width is set to: %d\n", border_width);
1682 /* Shortcut to avoid calling con_adjacent_borders() on dock containers. */
1683 int border_style = con_border_style(con);
1684 if (border_style == BS_NONE)
1685 return (Rect){0, 0, 0, 0};
1686 if (border_style == BS_NORMAL) {
1687 result = (Rect){border_width, 0, -(2 * border_width), -(border_width)};
1689 result = (Rect){border_width, border_width, -(2 * border_width), -(2 * border_width)};
1692 borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
1693 if (borders_to_hide & ADJ_LEFT_SCREEN_EDGE) {
1694 result.x -= border_width;
1695 result.width += border_width;
1697 if (borders_to_hide & ADJ_RIGHT_SCREEN_EDGE) {
1698 result.width += border_width;
1700 if (borders_to_hide & ADJ_UPPER_SCREEN_EDGE && (border_style != BS_NORMAL)) {
1701 result.y -= border_width;
1702 result.height += border_width;
1704 if (borders_to_hide & ADJ_LOWER_SCREEN_EDGE) {
1705 result.height += border_width;
1711 * Returns adjacent borders of the window. We need this if hide_edge_borders is
1714 adjacent_t con_adjacent_borders(Con *con) {
1715 adjacent_t result = ADJ_NONE;
1716 /* Floating windows are never adjacent to any other window, so
1717 don’t hide their border(s). This prevents bug #998. */
1718 if (con_is_floating(con))
1721 Con *workspace = con_get_workspace(con);
1722 if (con->rect.x == workspace->rect.x)
1723 result |= ADJ_LEFT_SCREEN_EDGE;
1724 if (con->rect.x + con->rect.width == workspace->rect.x + workspace->rect.width)
1725 result |= ADJ_RIGHT_SCREEN_EDGE;
1726 if (con->rect.y == workspace->rect.y)
1727 result |= ADJ_UPPER_SCREEN_EDGE;
1728 if (con->rect.y + con->rect.height == workspace->rect.y + workspace->rect.height)
1729 result |= ADJ_LOWER_SCREEN_EDGE;
1734 * Use this function to get a container’s border style. This is important
1735 * because when inside a stack, the border style is always BS_NORMAL.
1736 * For tabbed mode, the same applies, with one exception: when the container is
1737 * borderless and the only element in the tabbed container, the border is not
1740 * For children of a CT_DOCKAREA, the border style is always none.
1743 int con_border_style(Con *con) {
1744 Con *fs = con_get_fullscreen_con(con->parent, CF_OUTPUT);
1746 DLOG("this one is fullscreen! overriding BS_NONE\n");
1750 if (con->parent->layout == L_STACKED)
1751 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1753 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
1754 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1756 if (con->parent->type == CT_DOCKAREA)
1759 return con->border_style;
1763 * Sets the given border style on con, correctly keeping the position/size of a
1767 void con_set_border_style(Con *con, int border_style, int border_width) {
1768 /* Handle the simple case: non-floating containerns */
1769 if (!con_is_floating(con)) {
1770 con->border_style = border_style;
1771 con->current_border_width = border_width;
1775 /* For floating containers, we want to keep the position/size of the
1776 * *window* itself. We first add the border pixels to con->rect to make
1777 * con->rect represent the absolute position of the window (same for
1778 * parent). Then, we change the border style and subtract the new border
1779 * pixels. For the parent, we do the same also for the decoration. */
1780 DLOG("This is a floating container\n");
1782 Con *parent = con->parent;
1783 Rect bsr = con_border_style_rect(con);
1784 int deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1786 con->rect = rect_add(con->rect, bsr);
1787 parent->rect = rect_add(parent->rect, bsr);
1788 parent->rect.y += deco_height;
1789 parent->rect.height -= deco_height;
1791 /* Change the border style, get new border/decoration values. */
1792 con->border_style = border_style;
1793 con->current_border_width = border_width;
1794 bsr = con_border_style_rect(con);
1795 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1797 con->rect = rect_sub(con->rect, bsr);
1798 parent->rect = rect_sub(parent->rect, bsr);
1799 parent->rect.y -= deco_height;
1800 parent->rect.height += deco_height;
1804 * This function changes the layout of a given container. Use it to handle
1805 * special cases like changing a whole workspace to stacked/tabbed (creates a
1806 * new split container before).
1809 void con_set_layout(Con *con, layout_t layout) {
1810 DLOG("con_set_layout(%p, %d), con->type = %d\n",
1811 con, layout, con->type);
1813 /* Users can focus workspaces, but not any higher in the hierarchy.
1814 * Focus on the workspace is a special case, since in every other case, the
1815 * user means "change the layout of the parent split container". */
1816 if (con->type != CT_WORKSPACE)
1819 /* We fill in last_split_layout when switching to a different layout
1820 * since there are many places in the code that don’t use
1821 * con_set_layout(). */
1822 if (con->layout == L_SPLITH || con->layout == L_SPLITV)
1823 con->last_split_layout = con->layout;
1825 /* When the container type is CT_WORKSPACE, the user wants to change the
1826 * whole workspace into stacked/tabbed mode. To do this and still allow
1827 * intuitive operations (like level-up and then opening a new window), we
1828 * need to create a new split container. */
1829 if (con->type == CT_WORKSPACE) {
1830 if (con_num_children(con) == 0) {
1831 layout_t ws_layout = (layout == L_STACKED || layout == L_TABBED) ? layout : L_DEFAULT;
1832 DLOG("Setting workspace_layout to %d\n", ws_layout);
1833 con->workspace_layout = ws_layout;
1834 DLOG("Setting layout to %d\n", layout);
1835 con->layout = layout;
1836 } else if (layout == L_STACKED || layout == L_TABBED || layout == L_SPLITV || layout == L_SPLITH) {
1837 DLOG("Creating new split container\n");
1838 /* 1: create a new split container */
1839 Con *new = con_new(NULL, NULL);
1842 /* 2: Set the requested layout on the split container and mark it as
1844 new->layout = layout;
1845 new->last_split_layout = con->last_split_layout;
1847 /* 3: move the existing cons of this workspace below the new con */
1848 Con **focus_order = get_focus_order(con);
1850 DLOG("Moving cons\n");
1852 while (!TAILQ_EMPTY(&(con->nodes_head))) {
1853 child = TAILQ_FIRST(&(con->nodes_head));
1855 con_attach(child, new, true);
1858 set_focus_order(new, focus_order);
1861 /* 4: attach the new split container to the workspace */
1862 DLOG("Attaching new split to ws\n");
1863 con_attach(new, con, false);
1865 tree_flatten(croot);
1867 con_force_split_parents_redraw(con);
1871 if (layout == L_DEFAULT) {
1872 /* Special case: the layout formerly known as "default" (in combination
1873 * with an orientation). Since we switched to splith/splitv layouts,
1874 * using the "default" layout (which "only" should happen when using
1875 * legacy configs) is using the last split layout (either splith or
1876 * splitv) in order to still do the same thing. */
1877 con->layout = con->last_split_layout;
1878 /* In case last_split_layout was not initialized… */
1879 if (con->layout == L_DEFAULT)
1880 con->layout = L_SPLITH;
1882 con->layout = layout;
1884 con_force_split_parents_redraw(con);
1888 * This function toggles the layout of a given container. toggle_mode can be
1889 * either 'default' (toggle only between stacked/tabbed/last_split_layout),
1890 * 'split' (toggle only between splitv/splith) or 'all' (toggle between all
1894 void con_toggle_layout(Con *con, const char *toggle_mode) {
1896 /* Users can focus workspaces, but not any higher in the hierarchy.
1897 * Focus on the workspace is a special case, since in every other case, the
1898 * user means "change the layout of the parent split container". */
1899 if (con->type != CT_WORKSPACE)
1900 parent = con->parent;
1901 DLOG("con_toggle_layout(%p, %s), parent = %p\n", con, toggle_mode, parent);
1903 const char delim[] = " ";
1905 if (strcasecmp(toggle_mode, "split") == 0 || strstr(toggle_mode, delim)) {
1906 /* L_DEFAULT is used as a placeholder value to distinguish if
1907 * the first layout has already been saved. (it can never be L_DEFAULT) */
1908 layout_t new_layout = L_DEFAULT;
1909 bool current_layout_found = false;
1910 char *tm_dup = sstrdup(toggle_mode);
1911 char *cur_tok = strtok(tm_dup, delim);
1913 for (layout_t layout; cur_tok != NULL; cur_tok = strtok(NULL, delim)) {
1914 if (strcasecmp(cur_tok, "split") == 0) {
1915 /* Toggle between splits. When the current layout is not a split
1916 * layout, we just switch back to last_split_layout. Otherwise, we
1917 * change to the opposite split layout. */
1918 if (parent->layout != L_SPLITH && parent->layout != L_SPLITV) {
1919 layout = parent->last_split_layout;
1920 /* In case last_split_layout was not initialized… */
1921 if (layout == L_DEFAULT) {
1925 layout = (parent->layout == L_SPLITH) ? L_SPLITV : L_SPLITH;
1928 bool success = layout_from_name(cur_tok, &layout);
1929 if (!success || layout == L_DEFAULT) {
1930 ELOG("The token '%s' was not recognized and has been skipped.\n", cur_tok);
1935 /* If none of the specified layouts match the current,
1936 * fall back to the first layout in the list */
1937 if (new_layout == L_DEFAULT) {
1938 new_layout = layout;
1941 /* We found the active layout in the last iteration, so
1942 * now let's activate the current layout (next in list) */
1943 if (current_layout_found) {
1944 new_layout = layout;
1949 if (parent->layout == layout) {
1950 current_layout_found = true;
1954 if (new_layout != L_DEFAULT) {
1955 con_set_layout(con, new_layout);
1957 } else if (strcasecmp(toggle_mode, "all") == 0 || strcasecmp(toggle_mode, "default") == 0) {
1958 if (parent->layout == L_STACKED)
1959 con_set_layout(con, L_TABBED);
1960 else if (parent->layout == L_TABBED) {
1961 if (strcasecmp(toggle_mode, "all") == 0)
1962 con_set_layout(con, L_SPLITH);
1964 con_set_layout(con, parent->last_split_layout);
1965 } else if (parent->layout == L_SPLITH || parent->layout == L_SPLITV) {
1966 if (strcasecmp(toggle_mode, "all") == 0) {
1967 /* When toggling through all modes, we toggle between
1968 * splith/splitv, whereas normally we just directly jump to
1970 if (parent->layout == L_SPLITH)
1971 con_set_layout(con, L_SPLITV);
1973 con_set_layout(con, L_STACKED);
1975 con_set_layout(con, L_STACKED);
1982 * Callback which will be called when removing a child from the given con.
1983 * Kills the container if it is empty and replaces it with the child if there
1984 * is exactly one child.
1987 static void con_on_remove_child(Con *con) {
1988 DLOG("on_remove_child\n");
1990 /* Every container 'above' (in the hierarchy) the workspace content should
1991 * not be closed when the last child was removed */
1992 if (con->type == CT_OUTPUT ||
1993 con->type == CT_ROOT ||
1994 con->type == CT_DOCKAREA ||
1995 (con->parent != NULL && con->parent->type == CT_OUTPUT)) {
1996 DLOG("not handling, type = %d, name = %s\n", con->type, con->name);
2000 /* For workspaces, close them only if they're not visible anymore */
2001 if (con->type == CT_WORKSPACE) {
2002 if (TAILQ_EMPTY(&(con->focus_head)) && !workspace_is_visible(con)) {
2003 LOG("Closing old workspace (%p / %s), it is empty\n", con, con->name);
2004 yajl_gen gen = ipc_marshal_workspace_event("empty", con, NULL);
2005 tree_close_internal(con, DONT_KILL_WINDOW, false, false);
2007 const unsigned char *payload;
2009 y(get_buf, &payload, &length);
2010 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, (const char *)payload);
2017 con_force_split_parents_redraw(con);
2018 con->urgent = con_has_urgent_child(con);
2019 con_update_parents_urgency(con);
2021 /* TODO: check if this container would swallow any other client and
2022 * don’t close it automatically. */
2023 int children = con_num_children(con);
2024 if (children == 0) {
2025 DLOG("Container empty, closing\n");
2026 tree_close_internal(con, DONT_KILL_WINDOW, false, false);
2032 * Determines the minimum size of the given con by looking at its children (for
2033 * split/stacked/tabbed cons). Will be called when resizing floating cons
2036 Rect con_minimum_size(Con *con) {
2037 DLOG("Determining minimum size for con %p\n", con);
2039 if (con_is_leaf(con)) {
2040 DLOG("leaf node, returning 75x50\n");
2041 return (Rect){0, 0, 75, 50};
2044 if (con->type == CT_FLOATING_CON) {
2045 DLOG("floating con\n");
2046 Con *child = TAILQ_FIRST(&(con->nodes_head));
2047 return con_minimum_size(child);
2050 if (con->layout == L_STACKED || con->layout == L_TABBED) {
2051 uint32_t max_width = 0, max_height = 0, deco_height = 0;
2053 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2054 Rect min = con_minimum_size(child);
2055 deco_height += child->deco_rect.height;
2056 max_width = max(max_width, min.width);
2057 max_height = max(max_height, min.height);
2059 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
2060 max_width, max_height, deco_height);
2061 return (Rect){0, 0, max_width, max_height + deco_height};
2064 /* For horizontal/vertical split containers we sum up the width (h-split)
2065 * or height (v-split) and use the maximum of the height (h-split) or width
2066 * (v-split) as minimum size. */
2067 if (con_is_split(con)) {
2068 uint32_t width = 0, height = 0;
2070 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2071 Rect min = con_minimum_size(child);
2072 if (con->layout == L_SPLITH) {
2074 height = max(height, min.height);
2076 height += min.height;
2077 width = max(width, min.width);
2080 DLOG("split container, returning width = %d x height = %d\n", width, height);
2081 return (Rect){0, 0, width, height};
2084 ELOG("Unhandled case, type = %d, layout = %d, split = %d\n",
2085 con->type, con->layout, con_is_split(con));
2090 * Returns true if changing the focus to con would be allowed considering
2091 * the fullscreen focus constraints. Specifically, if a fullscreen container or
2092 * any of its descendants is focused, this function returns true if and only if
2093 * focusing con would mean that focus would still be visible on screen, i.e.,
2094 * the newly focused container would not be obscured by a fullscreen container.
2096 * In the simplest case, if a fullscreen container or any of its descendants is
2097 * fullscreen, this functions returns true if con is the fullscreen container
2098 * itself or any of its descendants, as this means focus wouldn't escape the
2099 * boundaries of the fullscreen container.
2101 * In case the fullscreen container is of type CF_OUTPUT, this function returns
2102 * true if con is on a different workspace, as focus wouldn't be obscured by
2103 * the fullscreen container that is constrained to a different workspace.
2105 * Note that this same logic can be applied to moving containers. If a
2106 * container can be focused under the fullscreen focus constraints, it can also
2107 * become a parent or sibling to the currently focused container.
2110 bool con_fullscreen_permits_focusing(Con *con) {
2111 /* No focus, no problem. */
2115 /* Find the first fullscreen ascendent. */
2117 while (fs && fs->fullscreen_mode == CF_NONE)
2120 /* fs must be non-NULL since the workspace con doesn’t have CF_NONE and
2121 * there always has to be a workspace con in the hierarchy. */
2123 /* The most common case is we hit the workspace level. In this
2124 * situation, changing focus is also harmless. */
2125 assert(fs->fullscreen_mode != CF_NONE);
2126 if (fs->type == CT_WORKSPACE)
2129 /* Allow it if the container itself is the fullscreen container. */
2133 /* If fullscreen is per-output, the focus being in a different workspace is
2134 * sufficient to guarantee that change won't leave fullscreen in bad shape. */
2135 if (fs->fullscreen_mode == CF_OUTPUT &&
2136 con_get_workspace(con) != con_get_workspace(fs)) {
2140 /* Allow it only if the container to be focused is contained within the
2141 * current fullscreen container. */
2142 return con_has_parent(con, fs);
2147 * Checks if the given container has an urgent child.
2150 bool con_has_urgent_child(Con *con) {
2153 if (con_is_leaf(con))
2156 /* We are not interested in floating windows since they can only be
2157 * attached to a workspace → nodes_head instead of focus_head */
2158 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2159 if (con_has_urgent_child(child))
2167 * Make all parent containers urgent if con is urgent or clear the urgent flag
2168 * of all parent containers if there are no more urgent children left.
2171 void con_update_parents_urgency(Con *con) {
2172 Con *parent = con->parent;
2174 /* Urgency hints should not be set on any container higher up in the
2175 * hierarchy than the workspace level. Unfortunately, since the content
2176 * container has type == CT_CON, that’s not easy to verify in the loop
2177 * below, so we need another condition to catch that case: */
2178 if (con->type == CT_WORKSPACE)
2181 bool new_urgency_value = con->urgent;
2182 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
2183 if (new_urgency_value) {
2184 parent->urgent = true;
2186 /* We can only reset the urgency when the parent
2187 * has no other urgent children */
2188 if (!con_has_urgent_child(parent))
2189 parent->urgent = false;
2191 parent = parent->parent;
2196 * Set urgency flag to the container, all the parent containers and the workspace.
2199 void con_set_urgency(Con *con, bool urgent) {
2200 if (urgent && focused == con) {
2201 DLOG("Ignoring urgency flag for current client\n");
2205 const bool old_urgent = con->urgent;
2207 if (con->urgency_timer == NULL) {
2208 con->urgent = urgent;
2210 DLOG("Discarding urgency WM_HINT because timer is running\n");
2215 gettimeofday(&con->window->urgent, NULL);
2217 con->window->urgent.tv_sec = 0;
2218 con->window->urgent.tv_usec = 0;
2222 con_update_parents_urgency(con);
2225 /* Set the urgency flag on the workspace, if a workspace could be found
2226 * (for dock clients, that is not the case). */
2227 if ((ws = con_get_workspace(con)) != NULL)
2228 workspace_update_urgent_flag(ws);
2230 if (con->urgent != old_urgent) {
2231 LOG("Urgency flag changed to %d\n", con->urgent);
2232 ipc_send_window_event("urgent", con);
2237 * Create a string representing the subtree under con.
2240 char *con_get_tree_representation(Con *con) {
2241 /* this code works as follows:
2242 * 1) create a string with the layout type (D/V/H/T/S) and an opening bracket
2243 * 2) append the tree representation of the children to the string
2244 * 3) add closing bracket
2246 * The recursion ends when we hit a leaf, in which case we return the
2247 * class_instance of the contained window.
2250 /* end of recursion */
2251 if (con_is_leaf(con)) {
2253 return sstrdup("nowin");
2255 if (!con->window->class_instance)
2256 return sstrdup("noinstance");
2258 return sstrdup(con->window->class_instance);
2262 /* 1) add the Layout type to buf */
2263 if (con->layout == L_DEFAULT)
2264 buf = sstrdup("D[");
2265 else if (con->layout == L_SPLITV)
2266 buf = sstrdup("V[");
2267 else if (con->layout == L_SPLITH)
2268 buf = sstrdup("H[");
2269 else if (con->layout == L_TABBED)
2270 buf = sstrdup("T[");
2271 else if (con->layout == L_STACKED)
2272 buf = sstrdup("S[");
2274 ELOG("BUG: Code not updated to account for new layout type\n");
2278 /* 2) append representation of children */
2280 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2281 char *child_txt = con_get_tree_representation(child);
2284 sasprintf(&tmp_buf, "%s%s%s", buf,
2285 (TAILQ_FIRST(&(con->nodes_head)) == child ? "" : " "), child_txt);
2291 /* 3) close the brackets */
2293 sasprintf(&complete_buf, "%s]", buf);
2296 return complete_buf;
2300 * Returns the container's title considering the current title format.
2303 i3String *con_parse_title_format(Con *con) {
2304 assert(con->title_format != NULL);
2306 i3Window *win = con->window;
2308 /* We need to ensure that we only escape the window title if pango
2309 * is used by the current font. */
2310 const bool pango_markup = font_is_pango();
2316 title = pango_escape_markup(con_get_tree_representation(con));
2317 class = sstrdup("i3-frame");
2318 instance = sstrdup("i3-frame");
2320 title = pango_escape_markup(sstrdup((win->name == NULL) ? "" : i3string_as_utf8(win->name)));
2321 class = pango_escape_markup(sstrdup((win->class_class == NULL) ? "" : win->class_class));
2322 instance = pango_escape_markup(sstrdup((win->class_instance == NULL) ? "" : win->class_instance));
2325 placeholder_t placeholders[] = {
2326 {.name = "%title", .value = title},
2327 {.name = "%class", .value = class},
2328 {.name = "%instance", .value = instance}};
2329 const size_t num = sizeof(placeholders) / sizeof(placeholder_t);
2331 char *formatted_str = format_placeholders(con->title_format, &placeholders[0], num);
2332 i3String *formatted = i3string_from_utf8(formatted_str);
2333 i3string_set_markup(formatted, pango_markup);
2334 FREE(formatted_str);
2336 for (size_t i = 0; i < num; i++) {
2337 FREE(placeholders[i].value);
2344 * Swaps the two containers.
2347 bool con_swap(Con *first, Con *second) {
2348 assert(first != NULL);
2349 assert(second != NULL);
2350 DLOG("Swapping containers %p / %p\n", first, second);
2352 if (first->type != CT_CON) {
2353 ELOG("Only regular containers can be swapped, but found con = %p with type = %d.\n", first, first->type);
2357 if (second->type != CT_CON) {
2358 ELOG("Only regular containers can be swapped, but found con = %p with type = %d.\n", second, second->type);
2362 if (con_is_floating(first) || con_is_floating(second)) {
2363 ELOG("Floating windows cannot be swapped.\n");
2367 if (first == second) {
2368 DLOG("Swapping container %p with itself, nothing to do.\n", first);
2372 if (con_has_parent(first, second) || con_has_parent(second, first)) {
2373 ELOG("Cannot swap containers %p and %p because they are in a parent-child relationship.\n", first, second);
2377 Con *old_focus = focused;
2379 Con *first_ws = con_get_workspace(first);
2380 Con *second_ws = con_get_workspace(second);
2381 Con *current_ws = con_get_workspace(old_focus);
2382 const bool focused_within_first = (first == old_focus || con_has_parent(old_focus, first));
2383 const bool focused_within_second = (second == old_focus || con_has_parent(old_focus, second));
2384 fullscreen_mode_t first_fullscreen_mode = first->fullscreen_mode;
2385 fullscreen_mode_t second_fullscreen_mode = second->fullscreen_mode;
2387 if (first_fullscreen_mode != CF_NONE) {
2388 con_disable_fullscreen(first);
2390 if (second_fullscreen_mode != CF_NONE) {
2391 con_disable_fullscreen(second);
2394 double first_percent = first->percent;
2395 double second_percent = second->percent;
2397 /* De- and reattaching the containers will insert them at the tail of the
2398 * focus_heads. We will need to fix this. But we need to make sure first
2399 * and second don't get in each other's way if they share the same parent,
2400 * so we select the closest previous focus_head that isn't involved. */
2401 Con *first_prev_focus_head = first;
2402 while (first_prev_focus_head == first || first_prev_focus_head == second) {
2403 first_prev_focus_head = TAILQ_PREV(first_prev_focus_head, focus_head, focused);
2406 Con *second_prev_focus_head = second;
2407 while (second_prev_focus_head == second || second_prev_focus_head == first) {
2408 second_prev_focus_head = TAILQ_PREV(second_prev_focus_head, focus_head, focused);
2411 /* We use a fake container to mark the spot of where the second container needs to go. */
2412 Con *fake = con_new(NULL, NULL);
2413 fake->layout = L_SPLITH;
2414 _con_attach(fake, first->parent, first, true);
2417 /* Swap the containers. We set the ignore_focus flag here because after the
2418 * container is attached, the focus order is not yet correct and would
2419 * result in wrong windows being focused. */
2421 /* Move first to second. */
2422 result &= _con_move_to_con(first, second, false, false, false, true, false);
2424 /* If we moved the container holding the focused window to another
2425 * workspace we need to ensure the visible workspace has the focused
2427 * We don't need to check this for the second container because we've only
2428 * moved the first one at this point.*/
2429 if (first_ws != second_ws && focused_within_first) {
2430 con_activate(con_descend_focused(current_ws));
2433 /* Move second to where first has been originally. */
2434 result &= _con_move_to_con(second, fake, false, false, false, true, false);
2436 /* If swapping the containers didn't work we don't need to mess with the focus. */
2441 /* Swapping will have inserted the containers at the tail of their parents'
2442 * focus head. We fix this now by putting them in the position of the focus
2443 * head the container they swapped with was in. */
2444 TAILQ_REMOVE(&(first->parent->focus_head), first, focused);
2445 TAILQ_REMOVE(&(second->parent->focus_head), second, focused);
2447 if (second_prev_focus_head == NULL) {
2448 TAILQ_INSERT_HEAD(&(first->parent->focus_head), first, focused);
2450 TAILQ_INSERT_AFTER(&(first->parent->focus_head), second_prev_focus_head, first, focused);
2453 if (first_prev_focus_head == NULL) {
2454 TAILQ_INSERT_HEAD(&(second->parent->focus_head), second, focused);
2456 TAILQ_INSERT_AFTER(&(second->parent->focus_head), first_prev_focus_head, second, focused);
2459 /* If the focus was within any of the swapped containers, do the following:
2460 * - If swapping took place within a workspace, ensure the previously
2461 * focused container stays focused.
2462 * - Otherwise, focus the container that has been swapped in.
2464 * To understand why fixing the focus_head previously wasn't enough,
2465 * consider the scenario
2466 * H[ V[ A X ] V[ Y B ] ]
2467 * with B being focused, but X being the focus_head within its parent. If
2468 * we swap A and B now, fixing the focus_head would focus X, but since B
2469 * was the focused container before it should stay focused.
2471 if (focused_within_first) {
2472 if (first_ws == second_ws) {
2473 con_activate(old_focus);
2475 con_activate(con_descend_focused(second));
2477 } else if (focused_within_second) {
2478 if (first_ws == second_ws) {
2479 con_activate(old_focus);
2481 con_activate(con_descend_focused(first));
2485 /* We need to copy each other's percentages to ensure that the geometry
2486 * doesn't change during the swap. This needs to happen _before_ we close
2487 * the fake container as closing the tree will recalculate percentages. */
2488 first->percent = second_percent;
2489 second->percent = first_percent;
2490 fake->percent = 0.0;
2492 SWAP(first_fullscreen_mode, second_fullscreen_mode, fullscreen_mode_t);
2495 /* The two windows exchange their original fullscreen status */
2496 if (first_fullscreen_mode != CF_NONE) {
2497 con_enable_fullscreen(first, first_fullscreen_mode);
2499 if (second_fullscreen_mode != CF_NONE) {
2500 con_enable_fullscreen(second, second_fullscreen_mode);
2503 /* We don't actually need this since percentages-wise we haven't changed
2504 * anything, but we'll better be safe than sorry and just make sure as we'd
2505 * otherwise crash i3. */
2506 con_fix_percent(first->parent);
2507 con_fix_percent(second->parent);
2509 /* We can get rid of the fake container again now. */
2510 con_close(fake, DONT_KILL_WINDOW);
2512 con_force_split_parents_redraw(first);
2513 con_force_split_parents_redraw(second);