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 DLOG("checking if con %p is floating\n", con);
543 return (con->floating >= FLOATING_AUTO_ON);
547 * Returns true if the container is a docked container.
550 bool con_is_docked(Con *con) {
551 if (con->parent == NULL)
554 if (con->parent->type == CT_DOCKAREA)
557 return con_is_docked(con->parent);
561 * Checks if the given container is either floating or inside some floating
562 * container. It returns the FLOATING_CON container.
565 Con *con_inside_floating(Con *con) {
567 if (con->type == CT_FLOATING_CON)
570 if (con->floating >= FLOATING_AUTO_ON)
573 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
576 return con_inside_floating(con->parent);
580 * Checks if the given container is inside a focused container.
583 bool con_inside_focused(Con *con) {
588 return con_inside_focused(con->parent);
592 * Checks if the container has the given parent as an actual parent.
595 bool con_has_parent(Con *con, Con *parent) {
596 Con *current = con->parent;
597 if (current == NULL) {
601 if (current == parent) {
605 return con_has_parent(current, parent);
609 * Returns the container with the given client window ID or NULL if no such
613 Con *con_by_window_id(xcb_window_t window) {
615 TAILQ_FOREACH(con, &all_cons, all_cons)
616 if (con->window != NULL && con->window->id == window)
622 * Returns the container with the given container ID or NULL if no such
626 Con *con_by_con_id(long target) {
628 TAILQ_FOREACH(con, &all_cons, all_cons) {
629 if (con == (Con *)target) {
638 * Returns true if the given container (still) exists.
639 * This can be used, e.g., to make sure a container hasn't been closed in the meantime.
642 bool con_exists(Con *con) {
643 return con_by_con_id((long)con) != NULL;
647 * Returns the container with the given frame ID or NULL if no such container
651 Con *con_by_frame_id(xcb_window_t frame) {
653 TAILQ_FOREACH(con, &all_cons, all_cons)
654 if (con->frame.id == frame)
660 * Returns the container with the given mark or NULL if no such container
664 Con *con_by_mark(const char *mark) {
666 TAILQ_FOREACH(con, &all_cons, all_cons) {
667 if (con_has_mark(con, mark))
675 * Returns true if and only if the given containers holds the mark.
678 bool con_has_mark(Con *con, const char *mark) {
680 TAILQ_FOREACH(current, &(con->marks_head), marks) {
681 if (strcmp(current->name, mark) == 0)
689 * Toggles the mark on a container.
690 * If the container already has this mark, the mark is removed.
691 * Otherwise, the mark is assigned to the container.
694 void con_mark_toggle(Con *con, const char *mark, mark_mode_t mode) {
696 DLOG("Toggling mark \"%s\" on con = %p.\n", mark, con);
698 if (con_has_mark(con, mark)) {
699 con_unmark(con, mark);
701 con_mark(con, mark, mode);
706 * Assigns a mark to the container.
709 void con_mark(Con *con, const char *mark, mark_mode_t mode) {
711 DLOG("Setting mark \"%s\" on con = %p.\n", mark, con);
713 con_unmark(NULL, mark);
714 if (mode == MM_REPLACE) {
715 DLOG("Removing all existing marks on con = %p.\n", con);
718 while (!TAILQ_EMPTY(&(con->marks_head))) {
719 current = TAILQ_FIRST(&(con->marks_head));
720 con_unmark(con, current->name);
724 mark_t *new = scalloc(1, sizeof(mark_t));
725 new->name = sstrdup(mark);
726 TAILQ_INSERT_TAIL(&(con->marks_head), new, marks);
727 ipc_send_window_event("mark", con);
729 con->mark_changed = true;
733 * Removes marks from containers.
734 * If con is NULL, all containers are considered.
735 * If name is NULL, this removes all existing marks.
736 * Otherwise, it will only remove the given mark (if it is present).
739 void con_unmark(Con *con, const char *name) {
742 DLOG("Unmarking all containers.\n");
743 TAILQ_FOREACH(current, &all_cons, all_cons) {
744 if (con != NULL && current != con)
747 if (TAILQ_EMPTY(&(current->marks_head)))
751 while (!TAILQ_EMPTY(&(current->marks_head))) {
752 mark = TAILQ_FIRST(&(current->marks_head));
754 TAILQ_REMOVE(&(current->marks_head), mark, marks);
757 ipc_send_window_event("mark", current);
760 current->mark_changed = true;
763 DLOG("Removing mark \"%s\".\n", name);
764 current = (con == NULL) ? con_by_mark(name) : con;
765 if (current == NULL) {
766 DLOG("No container found with this mark, so there is nothing to do.\n");
770 DLOG("Found mark on con = %p. Removing it now.\n", current);
771 current->mark_changed = true;
774 TAILQ_FOREACH(mark, &(current->marks_head), marks) {
775 if (strcmp(mark->name, name) != 0)
779 TAILQ_REMOVE(&(current->marks_head), mark, marks);
782 ipc_send_window_event("mark", current);
789 * Returns the first container below 'con' which wants to swallow this window
793 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
796 //DLOG("searching con for window %p starting at con %p\n", window, con);
797 //DLOG("class == %s\n", window->class_class);
799 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
800 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
801 if (!match_matches_window(match, window))
803 if (store_match != NULL)
804 *store_match = match;
807 Con *result = con_for_window(child, window, store_match);
812 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
813 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
814 if (!match_matches_window(match, window))
816 if (store_match != NULL)
817 *store_match = match;
820 Con *result = con_for_window(child, window, store_match);
828 static int num_focus_heads(Con *con) {
832 TAILQ_FOREACH(current, &(con->focus_head), focused) {
840 * Iterate over the container's focus stack and return an array with the
841 * containers inside it, ordered from higher focus order to lowest.
844 Con **get_focus_order(Con *con) {
845 const int focus_heads = num_focus_heads(con);
846 Con **focus_order = smalloc(focus_heads * sizeof(Con *));
849 TAILQ_FOREACH(current, &(con->focus_head), focused) {
850 assert(idx < focus_heads);
851 focus_order[idx++] = current;
858 * Clear the container's focus stack and re-add it using the provided container
859 * array. The function doesn't check if the provided array contains the same
860 * containers with the previous focus stack but will not add floating containers
861 * in the new focus stack if container is not a workspace.
864 void set_focus_order(Con *con, Con **focus_order) {
866 while (!TAILQ_EMPTY(&(con->focus_head))) {
867 Con *current = TAILQ_FIRST(&(con->focus_head));
869 TAILQ_REMOVE(&(con->focus_head), current, focused);
873 for (int idx = 0; idx < focus_heads; idx++) {
874 /* Useful when encapsulating a workspace. */
875 if (con->type != CT_WORKSPACE && con_inside_floating(focus_order[idx])) {
880 TAILQ_INSERT_TAIL(&(con->focus_head), focus_order[idx], focused);
885 * Returns the number of children of this container.
888 int con_num_children(Con *con) {
892 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
899 * Returns the number of visible non-floating children of this container.
900 * For example, if the container contains a hsplit which has two children,
901 * this will return 2 instead of 1.
903 int con_num_visible_children(Con *con) {
909 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
910 /* Visible leaf nodes are a child. */
911 if (!con_is_hidden(current) && con_is_leaf(current))
913 /* All other containers need to be recursed. */
915 children += con_num_visible_children(current);
922 * Count the number of windows (i.e., leaf containers).
925 int con_num_windows(Con *con) {
929 if (con_has_managed_window(con))
934 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
935 num += con_num_windows(current);
938 TAILQ_FOREACH(current, &(con->floating_head), floating_windows) {
939 num += con_num_windows(current);
946 * Updates the percent attribute of the children of the given container. This
947 * function needs to be called when a window is added or removed from a
951 void con_fix_percent(Con *con) {
953 int children = con_num_children(con);
955 // calculate how much we have distributed and how many containers
956 // with a percentage set we have
958 int children_with_percent = 0;
959 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
960 if (child->percent > 0.0) {
961 total += child->percent;
962 ++children_with_percent;
966 // if there were children without a percentage set, set to a value that
967 // will make those children proportional to all others
968 if (children_with_percent != children) {
969 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
970 if (child->percent <= 0.0) {
971 if (children_with_percent == 0) {
972 total += (child->percent = 1.0);
974 total += (child->percent = total / children_with_percent);
980 // if we got a zero, just distribute the space equally, otherwise
981 // distribute according to the proportions we got
983 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
984 child->percent = 1.0 / children;
986 } else if (total != 1.0) {
987 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
988 child->percent /= total;
994 * Toggles fullscreen mode for the given container. If there already is a
995 * fullscreen container on this workspace, fullscreen will be disabled and then
996 * enabled for the container the user wants to have in fullscreen mode.
999 void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
1000 if (con->type == CT_WORKSPACE) {
1001 DLOG("You cannot make a workspace fullscreen.\n");
1005 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
1007 if (con->fullscreen_mode == CF_NONE)
1008 con_enable_fullscreen(con, fullscreen_mode);
1010 con_disable_fullscreen(con);
1014 * Sets the specified fullscreen mode for the given container, sends the
1015 * “fullscreen_mode” event and changes the XCB fullscreen property of the
1016 * container’s window, if any.
1019 static void con_set_fullscreen_mode(Con *con, fullscreen_mode_t fullscreen_mode) {
1020 con->fullscreen_mode = fullscreen_mode;
1022 DLOG("mode now: %d\n", con->fullscreen_mode);
1024 /* Send an ipc window "fullscreen_mode" event */
1025 ipc_send_window_event("fullscreen_mode", con);
1027 /* update _NET_WM_STATE if this container has a window */
1028 /* TODO: when a window is assigned to a container which is already
1029 * fullscreened, this state needs to be pushed to the client, too */
1030 if (con->window == NULL)
1033 if (con->fullscreen_mode != CF_NONE) {
1034 DLOG("Setting _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
1035 xcb_add_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
1037 DLOG("Removing _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
1038 xcb_remove_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
1043 * Enables fullscreen mode for the given container, if necessary.
1045 * If the container’s mode is already CF_OUTPUT or CF_GLOBAL, the container is
1046 * kept fullscreen but its mode is set to CF_GLOBAL and CF_OUTPUT,
1049 * Other fullscreen containers will be disabled first, if they hide the new
1053 void con_enable_fullscreen(Con *con, fullscreen_mode_t fullscreen_mode) {
1054 if (con->type == CT_WORKSPACE) {
1055 DLOG("You cannot make a workspace fullscreen.\n");
1059 assert(fullscreen_mode == CF_GLOBAL || fullscreen_mode == CF_OUTPUT);
1061 if (fullscreen_mode == CF_GLOBAL)
1062 DLOG("enabling global fullscreen for %p / %s\n", con, con->name);
1064 DLOG("enabling fullscreen for %p / %s\n", con, con->name);
1066 if (con->fullscreen_mode == fullscreen_mode) {
1067 DLOG("fullscreen already enabled for %p / %s\n", con, con->name);
1071 Con *con_ws = con_get_workspace(con);
1073 /* Disable any fullscreen container that would conflict the new one. */
1074 Con *fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
1075 if (fullscreen == NULL)
1076 fullscreen = con_get_fullscreen_con(con_ws, CF_OUTPUT);
1077 if (fullscreen != NULL)
1078 con_disable_fullscreen(fullscreen);
1080 /* Set focus to new fullscreen container. Unless in global fullscreen mode
1081 * and on another workspace restore focus afterwards.
1082 * Switch to the container’s workspace if mode is global. */
1083 Con *cur_ws = con_get_workspace(focused);
1084 Con *old_focused = focused;
1085 if (fullscreen_mode == CF_GLOBAL && cur_ws != con_ws)
1086 workspace_show(con_ws);
1088 if (fullscreen_mode != CF_GLOBAL && cur_ws != con_ws)
1089 con_activate(old_focused);
1091 con_set_fullscreen_mode(con, fullscreen_mode);
1095 * Disables fullscreen mode for the given container regardless of the mode, if
1099 void con_disable_fullscreen(Con *con) {
1100 if (con->type == CT_WORKSPACE) {
1101 DLOG("You cannot make a workspace fullscreen.\n");
1105 DLOG("disabling fullscreen for %p / %s\n", con, con->name);
1107 if (con->fullscreen_mode == CF_NONE) {
1108 DLOG("fullscreen already disabled for %p / %s\n", con, con->name);
1112 con_set_fullscreen_mode(con, CF_NONE);
1115 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) {
1116 Con *orig_target = target;
1118 /* Prevent moving if this would violate the fullscreen focus restrictions. */
1119 Con *target_ws = con_get_workspace(target);
1120 if (!ignore_focus && !con_fullscreen_permits_focusing(target_ws)) {
1121 LOG("Cannot move out of a fullscreen container.\n");
1125 if (con_is_floating(con)) {
1126 DLOG("Container is floating, using parent instead.\n");
1130 Con *source_ws = con_get_workspace(con);
1132 if (con->type == CT_WORKSPACE) {
1133 /* Re-parent all of the old workspace's floating windows. */
1135 while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
1136 child = TAILQ_FIRST(&(source_ws->floating_head));
1137 con_move_to_workspace(child, target_ws, true, true, false);
1140 /* If there are no non-floating children, ignore the workspace. */
1141 if (con_is_leaf(con))
1144 con = workspace_encapsulate(con);
1146 ELOG("Workspace failed to move its contents into a container!\n");
1151 /* Save the urgency state so that we can restore it. */
1152 bool urgent = con->urgent;
1154 /* Save the current workspace. So we can call workspace_show() by the end
1155 * of this function. */
1156 Con *current_ws = con_get_workspace(focused);
1158 Con *source_output = con_get_output(con),
1159 *dest_output = con_get_output(target_ws);
1161 /* 1: save the container which is going to be focused after the current
1162 * container is moved away */
1163 Con *focus_next = NULL;
1164 if (!ignore_focus && source_ws == current_ws) {
1165 focus_next = con_descend_focused(source_ws);
1166 if (focus_next == con || con_has_parent(focus_next, con)) {
1167 focus_next = con_next_focused(con);
1171 /* 2: we go up one level, but only when target is a normal container */
1172 if (target->type != CT_WORKSPACE) {
1173 DLOG("target originally = %p / %s / type %d\n", target, target->name, target->type);
1174 target = target->parent;
1177 /* 3: if the original target is the direct child of a floating container, we
1178 * can't move con next to it - floating containers have only one child - so
1179 * we get the workspace instead. */
1180 if (target->type == CT_FLOATING_CON) {
1181 DLOG("floatingcon, going up even further\n");
1182 orig_target = target;
1183 target = target->parent;
1186 if (con->type == CT_FLOATING_CON) {
1187 Con *ws = con_get_workspace(target);
1188 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
1192 if (source_output != dest_output) {
1193 /* Take the relative coordinates of the current output, then add them
1194 * to the coordinate space of the correct output */
1195 if (fix_coordinates && con->type == CT_FLOATING_CON) {
1196 floating_fix_coordinates(con, &(source_output->rect), &(dest_output->rect));
1198 DLOG("Not fixing coordinates, fix_coordinates flag = %d\n", fix_coordinates);
1201 /* If moving a fullscreen container and the destination already has a
1202 * fullscreen window on it, un-fullscreen the target's fullscreen con. */
1203 Con *fullscreen = con_get_fullscreen_con(target_ws, CF_OUTPUT);
1204 if (con->fullscreen_mode != CF_NONE && fullscreen != NULL) {
1205 con_toggle_fullscreen(fullscreen, CF_OUTPUT);
1209 DLOG("Re-attaching container to %p / %s\n", target, target->name);
1210 /* 4: re-attach the con to the parent of this focused container */
1211 Con *parent = con->parent;
1213 _con_attach(con, target, behind_focused ? NULL : orig_target, !behind_focused);
1215 /* 5: fix the percentages */
1216 if (fix_percentage) {
1217 con_fix_percent(parent);
1219 con_fix_percent(target);
1222 /* 6: focus the con on the target workspace, but only within that
1223 * workspace, that is, don’t move focus away if the target workspace is
1225 * We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
1226 * we don’t focus when there is a fullscreen con on that workspace. We
1227 * also don't do it if the caller requested to ignore focus. */
1228 if (!ignore_focus && !con_is_internal(target_ws) && !fullscreen) {
1229 /* We need to save the focused workspace on the output in case the
1230 * new workspace is hidden and it's necessary to immediately switch
1231 * back to the originally-focused workspace. */
1232 Con *old_focus_ws = TAILQ_FIRST(&(output_get_content(dest_output)->focus_head));
1233 Con *old_focus = focused;
1234 con_activate(con_descend_focused(con));
1236 if (old_focus_ws == current_ws && old_focus->type != CT_WORKSPACE) {
1237 /* Restore focus to the currently focused container. */
1238 con_activate(old_focus);
1239 } else if (con_get_workspace(focused) != old_focus_ws) {
1240 /* Restore focus if the output's focused workspace has changed. */
1241 con_focus(con_descend_focused(old_focus_ws));
1245 /* 7: when moving to another workspace, we leave the focus on the current
1246 * workspace. (see also #809) */
1247 if (!ignore_focus) {
1248 workspace_show(current_ws);
1250 DLOG("x_set_warp_to(NULL) because dont_warp is set\n");
1251 x_set_warp_to(NULL);
1255 /* Set focus only if con was on current workspace before moving.
1256 * Otherwise we would give focus to some window on different workspace. */
1258 con_activate(con_descend_focused(focus_next));
1260 /* 8. If anything within the container is associated with a startup sequence,
1261 * delete it so child windows won't be created on the old workspace. */
1262 struct Startup_Sequence *sequence;
1263 xcb_get_property_cookie_t cookie;
1264 xcb_get_property_reply_t *startup_id_reply;
1266 if (!con_is_leaf(con)) {
1268 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1272 cookie = xcb_get_property(conn, false, child->window->id,
1273 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1274 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1276 sequence = startup_sequence_get(child->window, startup_id_reply, true);
1277 if (sequence != NULL)
1278 startup_sequence_delete(sequence);
1283 cookie = xcb_get_property(conn, false, con->window->id,
1284 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1285 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1287 sequence = startup_sequence_get(con->window, startup_id_reply, true);
1288 if (sequence != NULL)
1289 startup_sequence_delete(sequence);
1292 /* 9. If the container was marked urgent, move the urgency hint. */
1294 workspace_update_urgent_flag(source_ws);
1295 con_set_urgency(con, true);
1298 /* Ensure the container will be redrawn. */
1299 FREE(con->deco_render_params);
1301 CALL(parent, on_remove_child);
1303 ipc_send_window_event("move", con);
1304 ewmh_update_wm_desktop();
1309 * Moves the given container to the given mark.
1312 bool con_move_to_mark(Con *con, const char *mark) {
1313 Con *target = con_by_mark(mark);
1314 if (target == NULL) {
1315 DLOG("found no container with mark \"%s\"\n", mark);
1319 /* For floating target containers, we just send the window to the same workspace. */
1320 if (con_is_floating(target)) {
1321 DLOG("target container is floating, moving container to target's workspace.\n");
1322 con_move_to_workspace(con, con_get_workspace(target), true, false, false);
1326 if (target->type == CT_WORKSPACE) {
1327 DLOG("target container is a workspace, simply moving the container there.\n");
1328 con_move_to_workspace(con, target, true, false, false);
1332 /* For split containers, we use the currently focused container within it.
1333 * This allows setting marks on, e.g., tabbed containers which will move
1334 * con to a new tab behind the focused tab. */
1335 if (con_is_split(target)) {
1336 DLOG("target is a split container, descending to the currently focused child.\n");
1337 target = TAILQ_FIRST(&(target->focus_head));
1340 if (con == target || con_has_parent(target, con)) {
1341 DLOG("cannot move the container to or inside itself, aborting.\n");
1345 return _con_move_to_con(con, target, false, true, false, false, true);
1349 * Moves the given container to the currently focused container on the given
1352 * The fix_coordinates flag will translate the current coordinates (offset from
1353 * the monitor position basically) to appropriate coordinates on the
1354 * destination workspace.
1355 * Not enabling this behaviour comes in handy when this function gets called by
1356 * floating_maybe_reassign_ws, which will only "move" a floating window when it
1357 * *already* changed its coordinates to a different output.
1359 * The dont_warp flag disables pointer warping and will be set when this
1360 * function is called while dragging a floating window.
1362 * If ignore_focus is set, the container will be moved without modifying focus
1365 * TODO: is there a better place for this function?
1368 void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
1369 assert(workspace->type == CT_WORKSPACE);
1371 Con *source_ws = con_get_workspace(con);
1372 if (workspace == source_ws) {
1373 DLOG("Not moving, already there\n");
1377 Con *target = con_descend_focused(workspace);
1378 _con_move_to_con(con, target, true, fix_coordinates, dont_warp, ignore_focus, true);
1382 * Moves the given container to the currently focused container on the
1383 * visible workspace on the given output.
1386 void con_move_to_output(Con *con, Output *output, bool fix_coordinates) {
1388 GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
1390 DLOG("Moving con %p to output %s\n", con, output_primary_name(output));
1391 con_move_to_workspace(con, ws, fix_coordinates, false, false);
1395 * Moves the given container to the currently focused container on the
1396 * visible workspace on the output specified by the given name.
1397 * The current output for the container is used to resolve relative names
1398 * such as left, right, up, down.
1401 bool con_move_to_output_name(Con *con, const char *name, bool fix_coordinates) {
1402 Output *current_output = get_output_for_con(con);
1403 assert(current_output != NULL);
1405 Output *output = get_output_from_string(current_output, name);
1406 if (output == NULL) {
1407 ELOG("Could not find output \"%s\"\n", name);
1411 con_move_to_output(con, output, fix_coordinates);
1416 * Returns the orientation of the given container (for stacked containers,
1417 * vertical orientation is used regardless of the actual orientation of the
1421 orientation_t con_orientation(Con *con) {
1422 switch (con->layout) {
1424 /* stacking containers behave like they are in vertical orientation */
1429 /* tabbed containers behave like they are in vertical orientation */
1434 ELOG("Someone called con_orientation() on a con with L_DEFAULT, this is a bug in the code.\n");
1439 ELOG("con_orientation() called on dockarea/output (%d) container %p\n", con->layout, con);
1442 /* should not be reached */
1447 * Returns the container which will be focused next when the given container
1448 * is not available anymore. Called in tree_close_internal and con_move_to_workspace
1449 * to properly restore focus.
1452 Con *con_next_focused(Con *con) {
1453 /* dock clients cannot be focused, so we focus the workspace instead */
1454 if (con->parent->type == CT_DOCKAREA) {
1455 DLOG("selecting workspace for dock client\n");
1456 return con_descend_focused(output_get_content(con->parent->parent));
1458 if (con_is_floating(con)) {
1462 /* if 'con' is not the first entry in the focus stack, use the first one as
1463 * it’s currently focused already */
1464 Con *next = TAILQ_FIRST(&(con->parent->focus_head));
1466 DLOG("Using first entry %p\n", next);
1468 /* try to focus the next container on the same level as this one or fall
1469 * back to its parent */
1470 if (!(next = TAILQ_NEXT(con, focused))) {
1475 /* now go down the focus stack as far as
1476 * possible, excluding the current container */
1477 while (!TAILQ_EMPTY(&(next->focus_head)) && TAILQ_FIRST(&(next->focus_head)) != con) {
1478 next = TAILQ_FIRST(&(next->focus_head));
1481 if (con->type == CT_FLOATING_CON && next != con->parent) {
1482 next = con_descend_focused(next);
1489 * Returns the focused con inside this client, descending the tree as far as
1490 * possible. This comes in handy when attaching a con to a workspace at the
1491 * currently focused position, for example.
1494 Con *con_descend_focused(Con *con) {
1496 while (next != focused && !TAILQ_EMPTY(&(next->focus_head)))
1497 next = TAILQ_FIRST(&(next->focus_head));
1502 * Returns the focused con inside this client, descending the tree as far as
1503 * possible. This comes in handy when attaching a con to a workspace at the
1504 * currently focused position, for example.
1506 * Works like con_descend_focused but considers only tiling cons.
1509 Con *con_descend_tiling_focused(Con *con) {
1513 if (next == focused)
1517 TAILQ_FOREACH(child, &(next->focus_head), focused) {
1518 if (child->type == CT_FLOATING_CON)
1524 } while (before != next && next != focused);
1529 * Returns the leftmost, rightmost, etc. container in sub-tree. For example, if
1530 * direction is D_LEFT, then we return the rightmost container and if direction
1531 * is D_RIGHT, we return the leftmost container. This is because if we are
1532 * moving D_LEFT, and thus want the rightmost container.
1535 Con *con_descend_direction(Con *con, direction_t direction) {
1538 int orientation = con_orientation(con);
1539 DLOG("con_descend_direction(%p, orientation %d, direction %d)\n", con, orientation, direction);
1540 if (direction == D_LEFT || direction == D_RIGHT) {
1541 if (orientation == HORIZ) {
1542 /* If the direction is horizontal, we can use either the first
1543 * (D_RIGHT) or the last con (D_LEFT) */
1544 if (direction == D_RIGHT)
1545 most = TAILQ_FIRST(&(con->nodes_head));
1547 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1548 } else if (orientation == VERT) {
1549 /* Wrong orientation. We use the last focused con. Within that con,
1550 * we recurse to chose the left/right con or at least the last
1552 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1553 if (current->type != CT_FLOATING_CON) {
1559 /* If the con has no orientation set, it’s not a split container
1560 * but a container with a client window, so stop recursing */
1565 if (direction == D_UP || direction == D_DOWN) {
1566 if (orientation == VERT) {
1567 /* If the direction is vertical, we can use either the first
1568 * (D_DOWN) or the last con (D_UP) */
1569 if (direction == D_UP)
1570 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1572 most = TAILQ_FIRST(&(con->nodes_head));
1573 } else if (orientation == HORIZ) {
1574 /* Wrong orientation. We use the last focused con. Within that con,
1575 * we recurse to chose the top/bottom con or at least the last
1577 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1578 if (current->type != CT_FLOATING_CON) {
1584 /* If the con has no orientation set, it’s not a split container
1585 * but a container with a client window, so stop recursing */
1592 return con_descend_direction(most, direction);
1596 * Returns a "relative" Rect which contains the amount of pixels that need to
1597 * be added to the original Rect to get the final position (obviously the
1598 * amount of pixels for normal, 1pixel and borderless are different).
1601 Rect con_border_style_rect(Con *con) {
1602 if (config.hide_edge_borders == HEBM_SMART && con_num_visible_children(con_get_workspace(con)) <= 1) {
1603 if (!con_is_floating(con)) {
1604 return (Rect){0, 0, 0, 0};
1608 adjacent_t borders_to_hide = ADJ_NONE;
1609 int border_width = con->current_border_width;
1610 DLOG("The border width for con is set to: %d\n", con->current_border_width);
1612 if (con->current_border_width < 0) {
1613 if (con_is_floating(con)) {
1614 border_width = config.default_floating_border_width;
1616 border_width = config.default_border_width;
1619 DLOG("Effective border width is set to: %d\n", border_width);
1620 /* Shortcut to avoid calling con_adjacent_borders() on dock containers. */
1621 int border_style = con_border_style(con);
1622 if (border_style == BS_NONE)
1623 return (Rect){0, 0, 0, 0};
1624 if (border_style == BS_NORMAL) {
1625 result = (Rect){border_width, 0, -(2 * border_width), -(border_width)};
1627 result = (Rect){border_width, border_width, -(2 * border_width), -(2 * border_width)};
1630 borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
1631 if (borders_to_hide & ADJ_LEFT_SCREEN_EDGE) {
1632 result.x -= border_width;
1633 result.width += border_width;
1635 if (borders_to_hide & ADJ_RIGHT_SCREEN_EDGE) {
1636 result.width += border_width;
1638 if (borders_to_hide & ADJ_UPPER_SCREEN_EDGE && (border_style != BS_NORMAL)) {
1639 result.y -= border_width;
1640 result.height += border_width;
1642 if (borders_to_hide & ADJ_LOWER_SCREEN_EDGE) {
1643 result.height += border_width;
1649 * Returns adjacent borders of the window. We need this if hide_edge_borders is
1652 adjacent_t con_adjacent_borders(Con *con) {
1653 adjacent_t result = ADJ_NONE;
1654 /* Floating windows are never adjacent to any other window, so
1655 don’t hide their border(s). This prevents bug #998. */
1656 if (con_is_floating(con))
1659 Con *workspace = con_get_workspace(con);
1660 if (con->rect.x == workspace->rect.x)
1661 result |= ADJ_LEFT_SCREEN_EDGE;
1662 if (con->rect.x + con->rect.width == workspace->rect.x + workspace->rect.width)
1663 result |= ADJ_RIGHT_SCREEN_EDGE;
1664 if (con->rect.y == workspace->rect.y)
1665 result |= ADJ_UPPER_SCREEN_EDGE;
1666 if (con->rect.y + con->rect.height == workspace->rect.y + workspace->rect.height)
1667 result |= ADJ_LOWER_SCREEN_EDGE;
1672 * Use this function to get a container’s border style. This is important
1673 * because when inside a stack, the border style is always BS_NORMAL.
1674 * For tabbed mode, the same applies, with one exception: when the container is
1675 * borderless and the only element in the tabbed container, the border is not
1678 * For children of a CT_DOCKAREA, the border style is always none.
1681 int con_border_style(Con *con) {
1682 if (con->fullscreen_mode == CF_OUTPUT || con->fullscreen_mode == CF_GLOBAL) {
1683 DLOG("this one is fullscreen! overriding BS_NONE\n");
1687 if (con->parent->layout == L_STACKED)
1688 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1690 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
1691 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1693 if (con->parent->type == CT_DOCKAREA)
1696 return con->border_style;
1700 * Sets the given border style on con, correctly keeping the position/size of a
1704 void con_set_border_style(Con *con, int border_style, int border_width) {
1705 /* Handle the simple case: non-floating containerns */
1706 if (!con_is_floating(con)) {
1707 con->border_style = border_style;
1708 con->current_border_width = border_width;
1712 /* For floating containers, we want to keep the position/size of the
1713 * *window* itself. We first add the border pixels to con->rect to make
1714 * con->rect represent the absolute position of the window (same for
1715 * parent). Then, we change the border style and subtract the new border
1716 * pixels. For the parent, we do the same also for the decoration. */
1717 DLOG("This is a floating container\n");
1719 Con *parent = con->parent;
1720 Rect bsr = con_border_style_rect(con);
1721 int deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1723 con->rect = rect_add(con->rect, bsr);
1724 parent->rect = rect_add(parent->rect, bsr);
1725 parent->rect.y += deco_height;
1726 parent->rect.height -= deco_height;
1728 /* Change the border style, get new border/decoration values. */
1729 con->border_style = border_style;
1730 con->current_border_width = border_width;
1731 bsr = con_border_style_rect(con);
1732 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1734 con->rect = rect_sub(con->rect, bsr);
1735 parent->rect = rect_sub(parent->rect, bsr);
1736 parent->rect.y -= deco_height;
1737 parent->rect.height += deco_height;
1741 * This function changes the layout of a given container. Use it to handle
1742 * special cases like changing a whole workspace to stacked/tabbed (creates a
1743 * new split container before).
1746 void con_set_layout(Con *con, layout_t layout) {
1747 DLOG("con_set_layout(%p, %d), con->type = %d\n",
1748 con, layout, con->type);
1750 /* Users can focus workspaces, but not any higher in the hierarchy.
1751 * Focus on the workspace is a special case, since in every other case, the
1752 * user means "change the layout of the parent split container". */
1753 if (con->type != CT_WORKSPACE)
1756 /* We fill in last_split_layout when switching to a different layout
1757 * since there are many places in the code that don’t use
1758 * con_set_layout(). */
1759 if (con->layout == L_SPLITH || con->layout == L_SPLITV)
1760 con->last_split_layout = con->layout;
1762 /* When the container type is CT_WORKSPACE, the user wants to change the
1763 * whole workspace into stacked/tabbed mode. To do this and still allow
1764 * intuitive operations (like level-up and then opening a new window), we
1765 * need to create a new split container. */
1766 if (con->type == CT_WORKSPACE) {
1767 if (con_num_children(con) == 0) {
1768 layout_t ws_layout = (layout == L_STACKED || layout == L_TABBED) ? layout : L_DEFAULT;
1769 DLOG("Setting workspace_layout to %d\n", ws_layout);
1770 con->workspace_layout = ws_layout;
1771 DLOG("Setting layout to %d\n", layout);
1772 con->layout = layout;
1773 } else if (layout == L_STACKED || layout == L_TABBED || layout == L_SPLITV || layout == L_SPLITH) {
1774 DLOG("Creating new split container\n");
1775 /* 1: create a new split container */
1776 Con *new = con_new(NULL, NULL);
1779 /* 2: Set the requested layout on the split container and mark it as
1781 new->layout = layout;
1782 new->last_split_layout = con->last_split_layout;
1784 /* 3: move the existing cons of this workspace below the new con */
1785 Con **focus_order = get_focus_order(con);
1787 DLOG("Moving cons\n");
1789 while (!TAILQ_EMPTY(&(con->nodes_head))) {
1790 child = TAILQ_FIRST(&(con->nodes_head));
1792 con_attach(child, new, true);
1795 set_focus_order(new, focus_order);
1798 /* 4: attach the new split container to the workspace */
1799 DLOG("Attaching new split to ws\n");
1800 con_attach(new, con, false);
1802 tree_flatten(croot);
1804 con_force_split_parents_redraw(con);
1808 if (layout == L_DEFAULT) {
1809 /* Special case: the layout formerly known as "default" (in combination
1810 * with an orientation). Since we switched to splith/splitv layouts,
1811 * using the "default" layout (which "only" should happen when using
1812 * legacy configs) is using the last split layout (either splith or
1813 * splitv) in order to still do the same thing. */
1814 con->layout = con->last_split_layout;
1815 /* In case last_split_layout was not initialized… */
1816 if (con->layout == L_DEFAULT)
1817 con->layout = L_SPLITH;
1819 con->layout = layout;
1821 con_force_split_parents_redraw(con);
1825 * This function toggles the layout of a given container. toggle_mode can be
1826 * either 'default' (toggle only between stacked/tabbed/last_split_layout),
1827 * 'split' (toggle only between splitv/splith) or 'all' (toggle between all
1831 void con_toggle_layout(Con *con, const char *toggle_mode) {
1833 /* Users can focus workspaces, but not any higher in the hierarchy.
1834 * Focus on the workspace is a special case, since in every other case, the
1835 * user means "change the layout of the parent split container". */
1836 if (con->type != CT_WORKSPACE)
1837 parent = con->parent;
1838 DLOG("con_toggle_layout(%p, %s), parent = %p\n", con, toggle_mode, parent);
1840 const char delim[] = " ";
1842 if (strcasecmp(toggle_mode, "split") == 0 || strstr(toggle_mode, delim)) {
1843 /* L_DEFAULT is used as a placeholder value to distinguish if
1844 * the first layout has already been saved. (it can never be L_DEFAULT) */
1845 layout_t new_layout = L_DEFAULT;
1846 bool current_layout_found = false;
1847 char *tm_dup = sstrdup(toggle_mode);
1848 char *cur_tok = strtok(tm_dup, delim);
1850 for (layout_t layout; cur_tok != NULL; cur_tok = strtok(NULL, delim)) {
1851 if (strcasecmp(cur_tok, "split") == 0) {
1852 /* Toggle between splits. When the current layout is not a split
1853 * layout, we just switch back to last_split_layout. Otherwise, we
1854 * change to the opposite split layout. */
1855 if (parent->layout != L_SPLITH && parent->layout != L_SPLITV) {
1856 layout = parent->last_split_layout;
1857 /* In case last_split_layout was not initialized… */
1858 if (layout == L_DEFAULT) {
1862 layout = (parent->layout == L_SPLITH) ? L_SPLITV : L_SPLITH;
1865 bool success = layout_from_name(cur_tok, &layout);
1866 if (!success || layout == L_DEFAULT) {
1867 ELOG("The token '%s' was not recognized and has been skipped.\n", cur_tok);
1872 /* If none of the specified layouts match the current,
1873 * fall back to the first layout in the list */
1874 if (new_layout == L_DEFAULT) {
1875 new_layout = layout;
1878 /* We found the active layout in the last iteration, so
1879 * now let's activate the current layout (next in list) */
1880 if (current_layout_found) {
1881 new_layout = layout;
1885 if (parent->layout == layout) {
1886 current_layout_found = true;
1891 if (new_layout != L_DEFAULT) {
1892 con_set_layout(con, new_layout);
1894 } else if (strcasecmp(toggle_mode, "all") == 0 || strcasecmp(toggle_mode, "default") == 0) {
1895 if (parent->layout == L_STACKED)
1896 con_set_layout(con, L_TABBED);
1897 else if (parent->layout == L_TABBED) {
1898 if (strcasecmp(toggle_mode, "all") == 0)
1899 con_set_layout(con, L_SPLITH);
1901 con_set_layout(con, parent->last_split_layout);
1902 } else if (parent->layout == L_SPLITH || parent->layout == L_SPLITV) {
1903 if (strcasecmp(toggle_mode, "all") == 0) {
1904 /* When toggling through all modes, we toggle between
1905 * splith/splitv, whereas normally we just directly jump to
1907 if (parent->layout == L_SPLITH)
1908 con_set_layout(con, L_SPLITV);
1910 con_set_layout(con, L_STACKED);
1912 con_set_layout(con, L_STACKED);
1919 * Callback which will be called when removing a child from the given con.
1920 * Kills the container if it is empty and replaces it with the child if there
1921 * is exactly one child.
1924 static void con_on_remove_child(Con *con) {
1925 DLOG("on_remove_child\n");
1927 /* Every container 'above' (in the hierarchy) the workspace content should
1928 * not be closed when the last child was removed */
1929 if (con->type == CT_OUTPUT ||
1930 con->type == CT_ROOT ||
1931 con->type == CT_DOCKAREA ||
1932 (con->parent != NULL && con->parent->type == CT_OUTPUT)) {
1933 DLOG("not handling, type = %d, name = %s\n", con->type, con->name);
1937 /* For workspaces, close them only if they're not visible anymore */
1938 if (con->type == CT_WORKSPACE) {
1939 if (TAILQ_EMPTY(&(con->focus_head)) && !workspace_is_visible(con)) {
1940 LOG("Closing old workspace (%p / %s), it is empty\n", con, con->name);
1941 yajl_gen gen = ipc_marshal_workspace_event("empty", con, NULL);
1942 tree_close_internal(con, DONT_KILL_WINDOW, false);
1944 const unsigned char *payload;
1946 y(get_buf, &payload, &length);
1947 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, (const char *)payload);
1954 con_force_split_parents_redraw(con);
1955 con->urgent = con_has_urgent_child(con);
1956 con_update_parents_urgency(con);
1958 /* TODO: check if this container would swallow any other client and
1959 * don’t close it automatically. */
1960 int children = con_num_children(con);
1961 if (children == 0) {
1962 DLOG("Container empty, closing\n");
1963 tree_close_internal(con, DONT_KILL_WINDOW, false);
1969 * Determines the minimum size of the given con by looking at its children (for
1970 * split/stacked/tabbed cons). Will be called when resizing floating cons
1973 Rect con_minimum_size(Con *con) {
1974 DLOG("Determining minimum size for con %p\n", con);
1976 if (con_is_leaf(con)) {
1977 DLOG("leaf node, returning 75x50\n");
1978 return (Rect){0, 0, 75, 50};
1981 if (con->type == CT_FLOATING_CON) {
1982 DLOG("floating con\n");
1983 Con *child = TAILQ_FIRST(&(con->nodes_head));
1984 return con_minimum_size(child);
1987 if (con->layout == L_STACKED || con->layout == L_TABBED) {
1988 uint32_t max_width = 0, max_height = 0, deco_height = 0;
1990 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1991 Rect min = con_minimum_size(child);
1992 deco_height += child->deco_rect.height;
1993 max_width = max(max_width, min.width);
1994 max_height = max(max_height, min.height);
1996 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
1997 max_width, max_height, deco_height);
1998 return (Rect){0, 0, max_width, max_height + deco_height};
2001 /* For horizontal/vertical split containers we sum up the width (h-split)
2002 * or height (v-split) and use the maximum of the height (h-split) or width
2003 * (v-split) as minimum size. */
2004 if (con_is_split(con)) {
2005 uint32_t width = 0, height = 0;
2007 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2008 Rect min = con_minimum_size(child);
2009 if (con->layout == L_SPLITH) {
2011 height = max(height, min.height);
2013 height += min.height;
2014 width = max(width, min.width);
2017 DLOG("split container, returning width = %d x height = %d\n", width, height);
2018 return (Rect){0, 0, width, height};
2021 ELOG("Unhandled case, type = %d, layout = %d, split = %d\n",
2022 con->type, con->layout, con_is_split(con));
2027 * Returns true if changing the focus to con would be allowed considering
2028 * the fullscreen focus constraints. Specifically, if a fullscreen container or
2029 * any of its descendants is focused, this function returns true if and only if
2030 * focusing con would mean that focus would still be visible on screen, i.e.,
2031 * the newly focused container would not be obscured by a fullscreen container.
2033 * In the simplest case, if a fullscreen container or any of its descendants is
2034 * fullscreen, this functions returns true if con is the fullscreen container
2035 * itself or any of its descendants, as this means focus wouldn't escape the
2036 * boundaries of the fullscreen container.
2038 * In case the fullscreen container is of type CF_OUTPUT, this function returns
2039 * true if con is on a different workspace, as focus wouldn't be obscured by
2040 * the fullscreen container that is constrained to a different workspace.
2042 * Note that this same logic can be applied to moving containers. If a
2043 * container can be focused under the fullscreen focus constraints, it can also
2044 * become a parent or sibling to the currently focused container.
2047 bool con_fullscreen_permits_focusing(Con *con) {
2048 /* No focus, no problem. */
2052 /* Find the first fullscreen ascendent. */
2054 while (fs && fs->fullscreen_mode == CF_NONE)
2057 /* fs must be non-NULL since the workspace con doesn’t have CF_NONE and
2058 * there always has to be a workspace con in the hierarchy. */
2060 /* The most common case is we hit the workspace level. In this
2061 * situation, changing focus is also harmless. */
2062 assert(fs->fullscreen_mode != CF_NONE);
2063 if (fs->type == CT_WORKSPACE)
2066 /* Allow it if the container itself is the fullscreen container. */
2070 /* If fullscreen is per-output, the focus being in a different workspace is
2071 * sufficient to guarantee that change won't leave fullscreen in bad shape. */
2072 if (fs->fullscreen_mode == CF_OUTPUT &&
2073 con_get_workspace(con) != con_get_workspace(fs)) {
2077 /* Allow it only if the container to be focused is contained within the
2078 * current fullscreen container. */
2079 return con_has_parent(con, fs);
2084 * Checks if the given container has an urgent child.
2087 bool con_has_urgent_child(Con *con) {
2090 if (con_is_leaf(con))
2093 /* We are not interested in floating windows since they can only be
2094 * attached to a workspace → nodes_head instead of focus_head */
2095 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2096 if (con_has_urgent_child(child))
2104 * Make all parent containers urgent if con is urgent or clear the urgent flag
2105 * of all parent containers if there are no more urgent children left.
2108 void con_update_parents_urgency(Con *con) {
2109 Con *parent = con->parent;
2111 /* Urgency hints should not be set on any container higher up in the
2112 * hierarchy than the workspace level. Unfortunately, since the content
2113 * container has type == CT_CON, that’s not easy to verify in the loop
2114 * below, so we need another condition to catch that case: */
2115 if (con->type == CT_WORKSPACE)
2118 bool new_urgency_value = con->urgent;
2119 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
2120 if (new_urgency_value) {
2121 parent->urgent = true;
2123 /* We can only reset the urgency when the parent
2124 * has no other urgent children */
2125 if (!con_has_urgent_child(parent))
2126 parent->urgent = false;
2128 parent = parent->parent;
2133 * Set urgency flag to the container, all the parent containers and the workspace.
2136 void con_set_urgency(Con *con, bool urgent) {
2137 if (urgent && focused == con) {
2138 DLOG("Ignoring urgency flag for current client\n");
2142 const bool old_urgent = con->urgent;
2144 if (con->urgency_timer == NULL) {
2145 con->urgent = urgent;
2147 DLOG("Discarding urgency WM_HINT because timer is running\n");
2152 gettimeofday(&con->window->urgent, NULL);
2154 con->window->urgent.tv_sec = 0;
2155 con->window->urgent.tv_usec = 0;
2159 con_update_parents_urgency(con);
2162 /* Set the urgency flag on the workspace, if a workspace could be found
2163 * (for dock clients, that is not the case). */
2164 if ((ws = con_get_workspace(con)) != NULL)
2165 workspace_update_urgent_flag(ws);
2167 if (con->urgent != old_urgent) {
2168 LOG("Urgency flag changed to %d\n", con->urgent);
2169 ipc_send_window_event("urgent", con);
2174 * Create a string representing the subtree under con.
2177 char *con_get_tree_representation(Con *con) {
2178 /* this code works as follows:
2179 * 1) create a string with the layout type (D/V/H/T/S) and an opening bracket
2180 * 2) append the tree representation of the children to the string
2181 * 3) add closing bracket
2183 * The recursion ends when we hit a leaf, in which case we return the
2184 * class_instance of the contained window.
2187 /* end of recursion */
2188 if (con_is_leaf(con)) {
2190 return sstrdup("nowin");
2192 if (!con->window->class_instance)
2193 return sstrdup("noinstance");
2195 return sstrdup(con->window->class_instance);
2199 /* 1) add the Layout type to buf */
2200 if (con->layout == L_DEFAULT)
2201 buf = sstrdup("D[");
2202 else if (con->layout == L_SPLITV)
2203 buf = sstrdup("V[");
2204 else if (con->layout == L_SPLITH)
2205 buf = sstrdup("H[");
2206 else if (con->layout == L_TABBED)
2207 buf = sstrdup("T[");
2208 else if (con->layout == L_STACKED)
2209 buf = sstrdup("S[");
2211 ELOG("BUG: Code not updated to account for new layout type\n");
2215 /* 2) append representation of children */
2217 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
2218 char *child_txt = con_get_tree_representation(child);
2221 sasprintf(&tmp_buf, "%s%s%s", buf,
2222 (TAILQ_FIRST(&(con->nodes_head)) == child ? "" : " "), child_txt);
2228 /* 3) close the brackets */
2230 sasprintf(&complete_buf, "%s]", buf);
2233 return complete_buf;
2237 * Returns the container's title considering the current title format.
2240 i3String *con_parse_title_format(Con *con) {
2241 assert(con->title_format != NULL);
2243 i3Window *win = con->window;
2245 /* We need to ensure that we only escape the window title if pango
2246 * is used by the current font. */
2247 const bool pango_markup = font_is_pango();
2253 title = pango_escape_markup(con_get_tree_representation(con));
2254 class = sstrdup("i3-frame");
2255 instance = sstrdup("i3-frame");
2257 title = pango_escape_markup(sstrdup((win->name == NULL) ? "" : i3string_as_utf8(win->name)));
2258 class = pango_escape_markup(sstrdup((win->class_class == NULL) ? "" : win->class_class));
2259 instance = pango_escape_markup(sstrdup((win->class_instance == NULL) ? "" : win->class_instance));
2262 placeholder_t placeholders[] = {
2263 {.name = "%title", .value = title},
2264 {.name = "%class", .value = class},
2265 {.name = "%instance", .value = instance}};
2266 const size_t num = sizeof(placeholders) / sizeof(placeholder_t);
2268 char *formatted_str = format_placeholders(con->title_format, &placeholders[0], num);
2269 i3String *formatted = i3string_from_utf8(formatted_str);
2270 i3string_set_markup(formatted, pango_markup);
2271 FREE(formatted_str);
2273 for (size_t i = 0; i < num; i++) {
2274 FREE(placeholders[i].value);
2281 * Swaps the two containers.
2284 bool con_swap(Con *first, Con *second) {
2285 assert(first != NULL);
2286 assert(second != NULL);
2287 DLOG("Swapping containers %p / %p\n", first, second);
2289 if (first->type != CT_CON) {
2290 ELOG("Only regular containers can be swapped, but found con = %p with type = %d.\n", first, first->type);
2294 if (second->type != CT_CON) {
2295 ELOG("Only regular containers can be swapped, but found con = %p with type = %d.\n", second, second->type);
2299 if (first == second) {
2300 DLOG("Swapping container %p with itself, nothing to do.\n", first);
2304 if (con_has_parent(first, second) || con_has_parent(second, first)) {
2305 ELOG("Cannot swap containers %p and %p because they are in a parent-child relationship.\n", first, second);
2309 Con *ws1 = con_get_workspace(first);
2310 Con *ws2 = con_get_workspace(second);
2311 Con *restore_focus = NULL;
2312 if (ws1 == ws2 && ws1 == con_get_workspace(focused)) {
2313 /* Preserve focus in the current workspace. */
2314 restore_focus = focused;
2315 } else if (first == focused || con_has_parent(focused, first)) {
2316 restore_focus = second;
2317 } else if (second == focused || con_has_parent(focused, second)) {
2318 restore_focus = first;
2321 #define SWAP_CONS_IN_TREE(headname, field) \
2323 struct headname *head1 = &(first->parent->headname); \
2324 struct headname *head2 = &(second->parent->headname); \
2325 Con *first_prev = TAILQ_PREV(first, headname, field); \
2326 Con *second_prev = TAILQ_PREV(second, headname, field); \
2327 if (second_prev == first) { \
2328 TAILQ_SWAP(first, second, head1, field); \
2329 } else if (first_prev == second) { \
2330 TAILQ_SWAP(second, first, head1, field); \
2332 TAILQ_REMOVE(head1, first, field); \
2333 TAILQ_REMOVE(head2, second, field); \
2334 if (second_prev == NULL) { \
2335 TAILQ_INSERT_HEAD(head2, first, field); \
2337 TAILQ_INSERT_AFTER(head2, second_prev, first, field); \
2339 if (first_prev == NULL) { \
2340 TAILQ_INSERT_HEAD(head1, second, field); \
2342 TAILQ_INSERT_AFTER(head1, first_prev, second, field); \
2347 SWAP_CONS_IN_TREE(nodes_head, nodes);
2348 SWAP_CONS_IN_TREE(focus_head, focused);
2349 SWAP(first->parent, second->parent, Con *);
2351 /* Floating nodes are children of CT_FLOATING_CONs, they are listed in
2352 * nodes_head and focus_head like all other containers. Thus, we don't need
2353 * to do anything special other than swapping the floating status and the
2354 * relevant rects. */
2355 SWAP(first->floating, second->floating, int);
2356 SWAP(first->rect, second->rect, Rect);
2357 SWAP(first->window_rect, second->window_rect, Rect);
2359 /* We need to copy each other's percentages to ensure that the geometry
2360 * doesn't change during the swap. */
2361 SWAP(first->percent, second->percent, double);
2363 if (restore_focus) {
2364 con_focus(restore_focus);
2367 /* Update new parents' & workspaces' urgency. */
2368 con_set_urgency(first, first->urgent);
2369 con_set_urgency(second, second->urgent);
2371 /* Exchange fullscreen modes, can't use SWAP because we need to call the
2372 * correct functions. */
2373 fullscreen_mode_t second_fullscreen_mode = second->fullscreen_mode;
2374 if (first->fullscreen_mode == CF_NONE) {
2375 con_disable_fullscreen(second);
2377 con_enable_fullscreen(second, first->fullscreen_mode);
2379 if (second_fullscreen_mode == CF_NONE) {
2380 con_disable_fullscreen(first);
2382 con_enable_fullscreen(first, second_fullscreen_mode);
2385 /* We don't actually need this since percentages-wise we haven't changed
2386 * anything, but we'll better be safe than sorry and just make sure as we'd
2387 * otherwise crash i3. */
2388 con_fix_percent(first->parent);
2389 con_fix_percent(second->parent);
2391 con_force_split_parents_redraw(first);
2392 con_force_split_parents_redraw(second);
2398 * Returns container's rect size depending on its orientation.
2399 * i.e. its width when horizontal, its height when vertical.
2402 uint32_t con_rect_size_in_orientation(Con *con) {
2403 return (con_orientation(con) == HORIZ ? con->rect.width : con->rect.height);