2 #define I3__FILE__ "con.c"
4 * vim:ts=4:sw=4:expandtab
6 * i3 - an improved dynamic tiling window manager
7 * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
9 * con.c: Functions which deal with containers directly (creating containers,
10 * searching containers, getting specific properties from containers,
15 #include "yajl_utils.h"
17 static void con_on_remove_child(Con *con);
20 * force parent split containers to be redrawn
23 void con_force_split_parents_redraw(Con *con) {
26 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
27 if (!con_is_leaf(parent))
28 FREE(parent->deco_render_params);
29 parent = parent->parent;
34 * Create a new container (and attach it to the given parent, if not NULL).
35 * This function only initializes the data structures.
38 Con *con_new_skeleton(Con *parent, i3Window *window) {
39 Con *new = scalloc(1, sizeof(Con));
40 new->on_remove_child = con_on_remove_child;
41 TAILQ_INSERT_TAIL(&all_cons, new, all_cons);
44 new->border_style = config.default_border;
45 new->current_border_width = -1;
47 new->depth = window->depth;
48 new->window->aspect_ratio = 0.0;
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);
71 x_con_init(new, new->depth);
75 static void _con_attach(Con *con, Con *parent, Con *previous, bool ignore_focus) {
78 Con *current = previous;
79 struct nodes_head *nodes_head = &(parent->nodes_head);
80 struct focus_head *focus_head = &(parent->focus_head);
82 /* Workspaces are handled differently: they need to be inserted at the
84 if (con->type == CT_WORKSPACE) {
85 DLOG("it's a workspace. num = %d\n", con->num);
86 if (con->num == -1 || TAILQ_EMPTY(nodes_head)) {
87 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
89 current = TAILQ_FIRST(nodes_head);
90 if (con->num < current->num) {
91 /* we need to insert the container at the beginning */
92 TAILQ_INSERT_HEAD(nodes_head, con, nodes);
94 while (current->num != -1 && con->num > current->num) {
95 current = TAILQ_NEXT(current, nodes);
96 if (current == TAILQ_END(nodes_head)) {
101 /* we need to insert con after current, if current is not NULL */
103 TAILQ_INSERT_BEFORE(current, con, nodes);
105 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
108 goto add_to_focus_head;
111 if (con->type == CT_FLOATING_CON) {
112 DLOG("Inserting into floating containers\n");
113 TAILQ_INSERT_TAIL(&(parent->floating_head), con, floating_windows);
116 /* Get the first tiling container in focus stack */
117 TAILQ_FOREACH(loop, &(parent->focus_head), focused) {
118 if (loop->type == CT_FLOATING_CON)
125 /* When the container is not a split container (but contains a window)
126 * and is attached to a workspace, we check if the user configured a
127 * workspace_layout. This is done in workspace_attach_to, which will
128 * provide us with the container to which we should attach (either the
129 * workspace or a new split container with the configured
132 if (con->window != NULL &&
133 parent->type == CT_WORKSPACE &&
134 parent->workspace_layout != L_DEFAULT) {
135 DLOG("Parent is a workspace. Applying default layout...\n");
136 Con *target = workspace_attach_to(parent);
138 /* Attach the original con to this new split con instead */
139 nodes_head = &(target->nodes_head);
140 focus_head = &(target->focus_head);
141 con->parent = target;
147 /* Insert the container after the tiling container, if found.
148 * When adding to a CT_OUTPUT, just append one after another. */
149 if (current && parent->type != CT_OUTPUT) {
150 DLOG("Inserting con = %p after con %p\n", con, current);
151 TAILQ_INSERT_AFTER(nodes_head, current, con, nodes);
153 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
157 /* We insert to the TAIL because con_focus() will correct this.
158 * This way, we have the option to insert Cons without having
160 TAILQ_INSERT_TAIL(focus_head, con, focused);
161 con_force_split_parents_redraw(con);
165 * Attaches the given container to the given parent. This happens when moving
166 * a container or when inserting a new container at a specific place in the
169 * ignore_focus is to just insert the Con at the end (useful when creating a
170 * new split container *around* some containers, that is, detaching and
171 * attaching them in order without wanting to mess with the focus in between).
174 void con_attach(Con *con, Con *parent, bool ignore_focus) {
175 _con_attach(con, parent, NULL, ignore_focus);
179 * Detaches the given container from its current parent
182 void con_detach(Con *con) {
183 con_force_split_parents_redraw(con);
184 if (con->type == CT_FLOATING_CON) {
185 TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
186 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
188 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
189 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
194 * Sets input focus to the given container. Will be updated in X11 in the next
195 * run of x_push_changes().
198 void con_focus(Con *con) {
200 DLOG("con_focus = %p\n", con);
202 /* 1: set focused-pointer to the new con */
203 /* 2: exchange the position of the container in focus stack of the parent all the way up */
204 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
205 TAILQ_INSERT_HEAD(&(con->parent->focus_head), con, focused);
206 if (con->parent->parent != NULL)
207 con_focus(con->parent);
210 /* We can't blindly reset non-leaf containers since they might have
211 * other urgent children. Therefore we only reset leafs and propagate
212 * the changes upwards via con_update_parents_urgency() which does proper
213 * checks before resetting the urgency.
215 if (con->urgent && con_is_leaf(con)) {
216 con_set_urgency(con, false);
217 con_update_parents_urgency(con);
218 workspace_update_urgent_flag(con_get_workspace(con));
219 ipc_send_window_event("urgent", con);
224 * Returns true when this node is a leaf node (has no children)
227 bool con_is_leaf(Con *con) {
228 return TAILQ_EMPTY(&(con->nodes_head));
232 * Returns true when this con is a leaf node with a managed X11 window (e.g.,
233 * excluding dock containers)
235 bool con_has_managed_window(Con *con) {
236 return (con != NULL && con->window != NULL && con->window->id != XCB_WINDOW_NONE && con_get_workspace(con) != NULL);
240 * Returns true if this node has regular or floating children.
243 bool con_has_children(Con *con) {
244 return (!con_is_leaf(con) || !TAILQ_EMPTY(&(con->floating_head)));
248 * Returns true if a container should be considered split.
251 bool con_is_split(Con *con) {
252 if (con_is_leaf(con))
255 switch (con->layout) {
266 * This will only return true for containers which have some parent with
267 * a tabbed / stacked parent of which they are not the currently focused child.
270 bool con_is_hidden(Con *con) {
273 /* ascend to the workspace level and memorize the highest-up container
274 * which is stacked or tabbed. */
275 while (current != NULL && current->type != CT_WORKSPACE) {
276 Con *parent = current->parent;
277 if (parent != NULL && (parent->layout == L_TABBED || parent->layout == L_STACKED)) {
278 if (TAILQ_FIRST(&(parent->focus_head)) != current)
289 * Returns whether the container or any of its children is sticky.
292 bool con_is_sticky(Con *con) {
297 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
298 if (con_is_sticky(child))
306 * Returns true if this node accepts a window (if the node swallows windows,
307 * it might already have swallowed enough and cannot hold any more).
310 bool con_accepts_window(Con *con) {
311 /* 1: workspaces never accept direct windows */
312 if (con->type == CT_WORKSPACE)
315 if (con_is_split(con)) {
316 DLOG("container %p does not accept windows, it is a split container.\n", con);
320 /* TODO: if this is a swallowing container, we need to check its max_clients */
321 return (con->window == NULL);
325 * Gets the output container (first container with CT_OUTPUT in hierarchy) this
329 Con *con_get_output(Con *con) {
331 while (result != NULL && result->type != CT_OUTPUT)
332 result = result->parent;
333 /* We must be able to get an output because focus can never be set higher
334 * in the tree (root node cannot be focused). */
335 assert(result != NULL);
340 * Gets the workspace container this node is on.
343 Con *con_get_workspace(Con *con) {
345 while (result != NULL && result->type != CT_WORKSPACE)
346 result = result->parent;
351 * Searches parenst of the given 'con' until it reaches one with the specified
352 * 'orientation'. Aborts when it comes across a floating_con.
355 Con *con_parent_with_orientation(Con *con, orientation_t orientation) {
356 DLOG("Searching for parent of Con %p with orientation %d\n", con, orientation);
357 Con *parent = con->parent;
358 if (parent->type == CT_FLOATING_CON)
360 while (con_orientation(parent) != orientation) {
361 DLOG("Need to go one level further up\n");
362 parent = parent->parent;
363 /* Abort when we reach a floating con, or an output con */
365 (parent->type == CT_FLOATING_CON ||
366 parent->type == CT_OUTPUT ||
367 (parent->parent && parent->parent->type == CT_OUTPUT)))
372 DLOG("Result: %p\n", parent);
377 * helper data structure for the breadth-first-search in
378 * con_get_fullscreen_con()
384 TAILQ_ENTRY(bfs_entry) entries;
388 * Returns the first fullscreen node below this node.
391 Con *con_get_fullscreen_con(Con *con, fullscreen_mode_t fullscreen_mode) {
392 Con *current, *child;
394 /* TODO: is breadth-first-search really appropriate? (check as soon as
395 * fullscreen levels and fullscreen for containers is implemented) */
396 TAILQ_HEAD(bfs_head, bfs_entry) bfs_head = TAILQ_HEAD_INITIALIZER(bfs_head);
397 struct bfs_entry *entry = smalloc(sizeof(struct bfs_entry));
399 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
401 while (!TAILQ_EMPTY(&bfs_head)) {
402 entry = TAILQ_FIRST(&bfs_head);
403 current = entry->con;
404 if (current != con && current->fullscreen_mode == fullscreen_mode) {
405 /* empty the queue */
406 while (!TAILQ_EMPTY(&bfs_head)) {
407 entry = TAILQ_FIRST(&bfs_head);
408 TAILQ_REMOVE(&bfs_head, entry, entries);
414 TAILQ_REMOVE(&bfs_head, entry, entries);
417 TAILQ_FOREACH(child, &(current->nodes_head), nodes) {
418 entry = smalloc(sizeof(struct bfs_entry));
420 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
423 TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
424 entry = smalloc(sizeof(struct bfs_entry));
426 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
434 * Returns true if the container is internal, such as __i3_scratch
437 bool con_is_internal(Con *con) {
438 return (con->name[0] == '_' && con->name[1] == '_');
442 * Returns true if the node is floating.
445 bool con_is_floating(Con *con) {
447 DLOG("checking if con %p is floating\n", con);
448 return (con->floating >= FLOATING_AUTO_ON);
452 * Returns true if the container is a docked container.
455 bool con_is_docked(Con *con) {
456 if (con->parent == NULL)
459 if (con->parent->type == CT_DOCKAREA)
462 return con_is_docked(con->parent);
466 * Checks if the given container is either floating or inside some floating
467 * container. It returns the FLOATING_CON container.
470 Con *con_inside_floating(Con *con) {
472 if (con->type == CT_FLOATING_CON)
475 if (con->floating >= FLOATING_AUTO_ON)
478 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
481 return con_inside_floating(con->parent);
485 * Checks if the given container is inside a focused container.
488 bool con_inside_focused(Con *con) {
493 return con_inside_focused(con->parent);
497 * Returns the container with the given client window ID or NULL if no such
501 Con *con_by_window_id(xcb_window_t window) {
503 TAILQ_FOREACH(con, &all_cons, all_cons)
504 if (con->window != NULL && con->window->id == window)
510 * Returns the container with the given frame ID or NULL if no such container
514 Con *con_by_frame_id(xcb_window_t frame) {
516 TAILQ_FOREACH(con, &all_cons, all_cons)
517 if (con->frame.id == frame)
523 * Returns the container with the given mark or NULL if no such container
527 Con *con_by_mark(const char *mark) {
529 TAILQ_FOREACH(con, &all_cons, all_cons) {
530 if (con_has_mark(con, mark))
538 * Returns true if and only if the given containers holds the mark.
541 bool con_has_mark(Con *con, const char *mark) {
543 TAILQ_FOREACH(current, &(con->marks_head), marks) {
544 if (strcmp(current->name, mark) == 0)
552 * Toggles the mark on a container.
553 * If the container already has this mark, the mark is removed.
554 * Otherwise, the mark is assigned to the container.
557 void con_mark_toggle(Con *con, const char *mark, mark_mode_t mode) {
559 DLOG("Toggling mark \"%s\" on con = %p.\n", mark, con);
561 if (con_has_mark(con, mark)) {
562 con_unmark(con, mark);
564 con_mark(con, mark, mode);
569 * Assigns a mark to the container.
572 void con_mark(Con *con, const char *mark, mark_mode_t mode) {
574 DLOG("Setting mark \"%s\" on con = %p.\n", mark, con);
576 con_unmark(NULL, mark);
577 if (mode == MM_REPLACE) {
578 DLOG("Removing all existing marks on con = %p.\n", con);
581 TAILQ_FOREACH(current, &(con->marks_head), marks) {
582 con_unmark(con, current->name);
586 mark_t *new = scalloc(1, sizeof(mark_t));
587 new->name = sstrdup(mark);
588 TAILQ_INSERT_TAIL(&(con->marks_head), new, marks);
590 con->mark_changed = true;
594 * Removes marks from containers.
595 * If con is NULL, all containers are considered.
596 * If name is NULL, this removes all existing marks.
597 * Otherwise, it will only remove the given mark (if it is present).
600 void con_unmark(Con *con, const char *name) {
603 DLOG("Unmarking all containers.\n");
604 TAILQ_FOREACH(current, &all_cons, all_cons) {
605 if (con != NULL && current != con)
608 if (TAILQ_EMPTY(&(current->marks_head)))
612 while (!TAILQ_EMPTY(&(current->marks_head))) {
613 mark = TAILQ_FIRST(&(current->marks_head));
615 TAILQ_REMOVE(&(current->marks_head), mark, marks);
619 current->mark_changed = true;
622 DLOG("Removing mark \"%s\".\n", name);
623 current = (con == NULL) ? con_by_mark(name) : con;
624 if (current == NULL) {
625 DLOG("No container found with this mark, so there is nothing to do.\n");
629 DLOG("Found mark on con = %p. Removing it now.\n", current);
630 current->mark_changed = true;
633 TAILQ_FOREACH(mark, &(current->marks_head), marks) {
634 if (strcmp(mark->name, name) != 0)
638 TAILQ_REMOVE(&(current->marks_head), mark, marks);
646 * Returns the first container below 'con' which wants to swallow this window
650 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
653 //DLOG("searching con for window %p starting at con %p\n", window, con);
654 //DLOG("class == %s\n", window->class_class);
656 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
657 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
658 if (!match_matches_window(match, window))
660 if (store_match != NULL)
661 *store_match = match;
664 Con *result = con_for_window(child, window, store_match);
669 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
670 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
671 if (!match_matches_window(match, window))
673 if (store_match != NULL)
674 *store_match = match;
677 Con *result = con_for_window(child, window, store_match);
686 * Returns the number of children of this container.
689 int con_num_children(Con *con) {
693 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
700 * Updates the percent attribute of the children of the given container. This
701 * function needs to be called when a window is added or removed from a
705 void con_fix_percent(Con *con) {
707 int children = con_num_children(con);
709 // calculate how much we have distributed and how many containers
710 // with a percentage set we have
712 int children_with_percent = 0;
713 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
714 if (child->percent > 0.0) {
715 total += child->percent;
716 ++children_with_percent;
720 // if there were children without a percentage set, set to a value that
721 // will make those children proportional to all others
722 if (children_with_percent != children) {
723 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
724 if (child->percent <= 0.0) {
725 if (children_with_percent == 0)
726 total += (child->percent = 1.0);
728 total += (child->percent = total / children_with_percent);
733 // if we got a zero, just distribute the space equally, otherwise
734 // distribute according to the proportions we got
736 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
737 child->percent = 1.0 / children;
738 } else if (total != 1.0) {
739 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
740 child->percent /= total;
745 * Toggles fullscreen mode for the given container. If there already is a
746 * fullscreen container on this workspace, fullscreen will be disabled and then
747 * enabled for the container the user wants to have in fullscreen mode.
750 void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
751 if (con->type == CT_WORKSPACE) {
752 DLOG("You cannot make a workspace fullscreen.\n");
756 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
758 if (con->fullscreen_mode == CF_NONE)
759 con_enable_fullscreen(con, fullscreen_mode);
761 con_disable_fullscreen(con);
765 * Sets the specified fullscreen mode for the given container, sends the
766 * “fullscreen_mode” event and changes the XCB fullscreen property of the
767 * container’s window, if any.
770 static void con_set_fullscreen_mode(Con *con, fullscreen_mode_t fullscreen_mode) {
771 con->fullscreen_mode = fullscreen_mode;
773 DLOG("mode now: %d\n", con->fullscreen_mode);
775 /* Send an ipc window "fullscreen_mode" event */
776 ipc_send_window_event("fullscreen_mode", con);
778 /* update _NET_WM_STATE if this container has a window */
779 /* TODO: when a window is assigned to a container which is already
780 * fullscreened, this state needs to be pushed to the client, too */
781 if (con->window == NULL)
784 if (con->fullscreen_mode != CF_NONE) {
785 DLOG("Setting _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
786 xcb_add_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
788 DLOG("Removing _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
789 xcb_remove_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
794 * Enables fullscreen mode for the given container, if necessary.
796 * If the container’s mode is already CF_OUTPUT or CF_GLOBAL, the container is
797 * kept fullscreen but its mode is set to CF_GLOBAL and CF_OUTPUT,
800 * Other fullscreen containers will be disabled first, if they hide the new
804 void con_enable_fullscreen(Con *con, fullscreen_mode_t fullscreen_mode) {
805 if (con->type == CT_WORKSPACE) {
806 DLOG("You cannot make a workspace fullscreen.\n");
810 assert(fullscreen_mode == CF_GLOBAL || fullscreen_mode == CF_OUTPUT);
812 if (fullscreen_mode == CF_GLOBAL)
813 DLOG("enabling global fullscreen for %p / %s\n", con, con->name);
815 DLOG("enabling fullscreen for %p / %s\n", con, con->name);
817 if (con->fullscreen_mode == fullscreen_mode) {
818 DLOG("fullscreen already enabled for %p / %s\n", con, con->name);
822 Con *con_ws = con_get_workspace(con);
824 /* Disable any fullscreen container that would conflict the new one. */
825 Con *fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
826 if (fullscreen == NULL)
827 fullscreen = con_get_fullscreen_con(con_ws, CF_OUTPUT);
828 if (fullscreen != NULL)
829 con_disable_fullscreen(fullscreen);
831 /* Set focus to new fullscreen container. Unless in global fullscreen mode
832 * and on another workspace restore focus afterwards.
833 * Switch to the container’s workspace if mode is global. */
834 Con *cur_ws = con_get_workspace(focused);
835 Con *old_focused = focused;
836 if (fullscreen_mode == CF_GLOBAL && cur_ws != con_ws)
837 workspace_show(con_ws);
839 if (fullscreen_mode != CF_GLOBAL && cur_ws != con_ws)
840 con_focus(old_focused);
842 con_set_fullscreen_mode(con, fullscreen_mode);
846 * Disables fullscreen mode for the given container regardless of the mode, if
850 void con_disable_fullscreen(Con *con) {
851 if (con->type == CT_WORKSPACE) {
852 DLOG("You cannot make a workspace fullscreen.\n");
856 DLOG("disabling fullscreen for %p / %s\n", con, con->name);
858 if (con->fullscreen_mode == CF_NONE) {
859 DLOG("fullscreen already disabled for %p / %s\n", con, con->name);
863 con_set_fullscreen_mode(con, CF_NONE);
866 static bool _con_move_to_con(Con *con, Con *target, bool behind_focused, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
867 Con *orig_target = target;
869 /* Prevent moving if this would violate the fullscreen focus restrictions. */
870 Con *target_ws = con_get_workspace(target);
871 if (!con_fullscreen_permits_focusing(target_ws)) {
872 LOG("Cannot move out of a fullscreen container.\n");
876 if (con_is_floating(con)) {
877 DLOG("Container is floating, using parent instead.\n");
881 Con *source_ws = con_get_workspace(con);
883 if (con->type == CT_WORKSPACE) {
884 /* Re-parent all of the old workspace's floating windows. */
886 while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
887 child = TAILQ_FIRST(&(source_ws->floating_head));
888 con_move_to_workspace(child, target_ws, true, true, false);
891 /* If there are no non-floating children, ignore the workspace. */
892 if (con_is_leaf(con))
895 con = workspace_encapsulate(con);
897 ELOG("Workspace failed to move its contents into a container!\n");
902 /* Save the urgency state so that we can restore it. */
903 bool urgent = con->urgent;
905 /* Save the current workspace. So we can call workspace_show() by the end
906 * of this function. */
907 Con *current_ws = con_get_workspace(focused);
909 Con *source_output = con_get_output(con),
910 *dest_output = con_get_output(target_ws);
912 /* 1: save the container which is going to be focused after the current
913 * container is moved away */
914 Con *focus_next = con_next_focused(con);
916 /* 2: we go up one level, but only when target is a normal container */
917 if (target->type != CT_WORKSPACE) {
918 DLOG("target originally = %p / %s / type %d\n", target, target->name, target->type);
919 target = target->parent;
922 /* 3: if the target container is floating, we get the workspace instead.
923 * Only tiling windows need to get inserted next to the current container.
925 Con *floatingcon = con_inside_floating(target);
926 if (floatingcon != NULL) {
927 DLOG("floatingcon, going up even further\n");
928 target = floatingcon->parent;
931 if (con->type == CT_FLOATING_CON) {
932 Con *ws = con_get_workspace(target);
933 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
937 if (source_output != dest_output) {
938 /* Take the relative coordinates of the current output, then add them
939 * to the coordinate space of the correct output */
940 if (fix_coordinates && con->type == CT_FLOATING_CON) {
941 floating_fix_coordinates(con, &(source_output->rect), &(dest_output->rect));
943 DLOG("Not fixing coordinates, fix_coordinates flag = %d\n", fix_coordinates);
945 /* If moving to a visible workspace, call show so it can be considered
946 * focused. Must do before attaching because workspace_show checks to see
947 * if focused container is in its area. */
948 if (!ignore_focus && workspace_is_visible(target_ws)) {
949 workspace_show(target_ws);
951 /* Don’t warp if told so (when dragging floating windows with the
952 * mouse for example) */
956 x_set_warp_to(&(con->rect));
960 /* If moving a fullscreen container and the destination already has a
961 * fullscreen window on it, un-fullscreen the target's fullscreen con. */
962 Con *fullscreen = con_get_fullscreen_con(target_ws, CF_OUTPUT);
963 if (con->fullscreen_mode != CF_NONE && fullscreen != NULL) {
964 con_toggle_fullscreen(fullscreen, CF_OUTPUT);
968 DLOG("Re-attaching container to %p / %s\n", target, target->name);
969 /* 4: re-attach the con to the parent of this focused container */
970 Con *parent = con->parent;
972 _con_attach(con, target, behind_focused ? NULL : orig_target, !behind_focused);
974 /* 5: fix the percentages */
975 con_fix_percent(parent);
977 con_fix_percent(target);
979 /* 6: focus the con on the target workspace, but only within that
980 * workspace, that is, don’t move focus away if the target workspace is
982 * We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
983 * we don’t focus when there is a fullscreen con on that workspace. We
984 * also don't do it if the caller requested to ignore focus. */
985 if (!ignore_focus && !con_is_internal(target_ws) && !fullscreen) {
986 /* We need to save the focused workspace on the output in case the
987 * new workspace is hidden and it's necessary to immediately switch
988 * back to the originally-focused workspace. */
989 Con *old_focus = TAILQ_FIRST(&(output_get_content(dest_output)->focus_head));
990 con_focus(con_descend_focused(con));
992 /* Restore focus if the output's focused workspace has changed. */
993 if (con_get_workspace(focused) != old_focus)
994 con_focus(old_focus);
997 /* 7: when moving to another workspace, we leave the focus on the current
998 * workspace. (see also #809) */
1000 /* Descend focus stack in case focus_next is a workspace which can
1001 * occur if we move to the same workspace. Also show current workspace
1002 * to ensure it is focused. */
1004 workspace_show(current_ws);
1006 /* Set focus only if con was on current workspace before moving.
1007 * Otherwise we would give focus to some window on different workspace. */
1008 if (!ignore_focus && source_ws == current_ws)
1009 con_focus(con_descend_focused(focus_next));
1011 /* 8. If anything within the container is associated with a startup sequence,
1012 * delete it so child windows won't be created on the old workspace. */
1013 struct Startup_Sequence *sequence;
1014 xcb_get_property_cookie_t cookie;
1015 xcb_get_property_reply_t *startup_id_reply;
1017 if (!con_is_leaf(con)) {
1019 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1023 cookie = xcb_get_property(conn, false, child->window->id,
1024 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1025 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1027 sequence = startup_sequence_get(child->window, startup_id_reply, true);
1028 if (sequence != NULL)
1029 startup_sequence_delete(sequence);
1034 cookie = xcb_get_property(conn, false, con->window->id,
1035 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1036 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1038 sequence = startup_sequence_get(con->window, startup_id_reply, true);
1039 if (sequence != NULL)
1040 startup_sequence_delete(sequence);
1043 CALL(parent, on_remove_child);
1045 /* 9. If the container was marked urgent, move the urgency hint. */
1047 workspace_update_urgent_flag(source_ws);
1048 con_set_urgency(con, true);
1051 ipc_send_window_event("move", con);
1056 * Moves the given container to the given mark.
1059 bool con_move_to_mark(Con *con, const char *mark) {
1060 Con *target = con_by_mark(mark);
1061 if (target == NULL) {
1062 DLOG("found no container with mark \"%s\"\n", mark);
1066 /* For floating target containers, we just send the window to the same workspace. */
1067 if (con_is_floating(target)) {
1068 DLOG("target container is floating, moving container to target's workspace.\n");
1069 con_move_to_workspace(con, con_get_workspace(target), true, false, false);
1073 if (con->type == CT_WORKSPACE) {
1074 DLOG("target container is a workspace, simply moving the container there.\n");
1075 con_move_to_workspace(con, target, true, false, false);
1079 /* For split containers, we use the currently focused container within it.
1080 * This allows setting marks on, e.g., tabbed containers which will move
1081 * con to a new tab behind the focused tab. */
1082 if (con_is_split(target)) {
1083 DLOG("target is a split container, descending to the currently focused child.\n");
1084 target = TAILQ_FIRST(&(target->focus_head));
1087 if (con == target || con == target->parent) {
1088 DLOG("cannot move the container to or inside itself, aborting.\n");
1092 return _con_move_to_con(con, target, false, true, false, false);
1096 * Moves the given container to the currently focused container on the given
1099 * The fix_coordinates flag will translate the current coordinates (offset from
1100 * the monitor position basically) to appropriate coordinates on the
1101 * destination workspace.
1102 * Not enabling this behaviour comes in handy when this function gets called by
1103 * floating_maybe_reassign_ws, which will only "move" a floating window when it
1104 * *already* changed its coordinates to a different output.
1106 * The dont_warp flag disables pointer warping and will be set when this
1107 * function is called while dragging a floating window.
1109 * If ignore_focus is set, the container will be moved without modifying focus
1112 * TODO: is there a better place for this function?
1115 void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
1116 assert(workspace->type == CT_WORKSPACE);
1118 Con *source_ws = con_get_workspace(con);
1119 if (workspace == source_ws) {
1120 DLOG("Not moving, already there\n");
1124 Con *target = con_descend_focused(workspace);
1125 _con_move_to_con(con, target, true, fix_coordinates, dont_warp, ignore_focus);
1129 * Returns the orientation of the given container (for stacked containers,
1130 * vertical orientation is used regardless of the actual orientation of the
1134 orientation_t con_orientation(Con *con) {
1135 switch (con->layout) {
1137 /* stacking containers behave like they are in vertical orientation */
1142 /* tabbed containers behave like they are in vertical orientation */
1147 DLOG("Someone called con_orientation() on a con with L_DEFAULT, this is a bug in the code.\n");
1153 DLOG("con_orientation() called on dockarea/output (%d) container %p\n", con->layout, con);
1158 DLOG("con_orientation() ran into default\n");
1164 * Returns the container which will be focused next when the given container
1165 * is not available anymore. Called in tree_close and con_move_to_workspace
1166 * to properly restore focus.
1169 Con *con_next_focused(Con *con) {
1171 /* floating containers are attached to a workspace, so we focus either the
1172 * next floating container (if any) or the workspace itself. */
1173 if (con->type == CT_FLOATING_CON) {
1174 DLOG("selecting next for CT_FLOATING_CON\n");
1175 next = TAILQ_NEXT(con, floating_windows);
1176 DLOG("next = %p\n", next);
1178 next = TAILQ_PREV(con, floating_head, floating_windows);
1179 DLOG("using prev, next = %p\n", next);
1182 Con *ws = con_get_workspace(con);
1184 DLOG("no more floating containers for next = %p, restoring workspace focus\n", next);
1185 while (next != TAILQ_END(&(ws->focus_head)) && !TAILQ_EMPTY(&(next->focus_head))) {
1186 next = TAILQ_FIRST(&(next->focus_head));
1188 DLOG("skipping container itself, we want the next client\n");
1189 next = TAILQ_NEXT(next, focused);
1192 if (next == TAILQ_END(&(ws->focus_head))) {
1193 DLOG("Focus list empty, returning ws\n");
1197 /* Instead of returning the next CT_FLOATING_CON, we descend it to
1198 * get an actual window to focus. */
1199 next = con_descend_focused(next);
1204 /* dock clients cannot be focused, so we focus the workspace instead */
1205 if (con->parent->type == CT_DOCKAREA) {
1206 DLOG("selecting workspace for dock client\n");
1207 return con_descend_focused(output_get_content(con->parent->parent));
1210 /* if 'con' is not the first entry in the focus stack, use the first one as
1211 * it’s currently focused already */
1212 Con *first = TAILQ_FIRST(&(con->parent->focus_head));
1214 DLOG("Using first entry %p\n", first);
1217 /* try to focus the next container on the same level as this one or fall
1218 * back to its parent */
1219 if (!(next = TAILQ_NEXT(con, focused)))
1223 /* now go down the focus stack as far as
1224 * possible, excluding the current container */
1225 while (!TAILQ_EMPTY(&(next->focus_head)) &&
1226 TAILQ_FIRST(&(next->focus_head)) != con)
1227 next = TAILQ_FIRST(&(next->focus_head));
1233 * Get the next/previous container in the specified orientation. This may
1234 * travel up until it finds a container with suitable orientation.
1237 Con *con_get_next(Con *con, char way, orientation_t orientation) {
1238 DLOG("con_get_next(way=%c, orientation=%d)\n", way, orientation);
1239 /* 1: get the first parent with the same orientation */
1241 while (con_orientation(cur->parent) != orientation) {
1242 DLOG("need to go one level further up\n");
1243 if (cur->parent->type == CT_WORKSPACE) {
1244 LOG("that's a workspace, we can't go further up\n");
1250 /* 2: chose next (or previous) */
1253 next = TAILQ_NEXT(cur, nodes);
1254 /* if we are at the end of the list, we need to wrap */
1255 if (next == TAILQ_END(&(parent->nodes_head)))
1258 next = TAILQ_PREV(cur, nodes_head, nodes);
1259 /* if we are at the end of the list, we need to wrap */
1260 if (next == TAILQ_END(&(cur->nodes_head)))
1263 DLOG("next = %p\n", next);
1269 * Returns the focused con inside this client, descending the tree as far as
1270 * possible. This comes in handy when attaching a con to a workspace at the
1271 * currently focused position, for example.
1274 Con *con_descend_focused(Con *con) {
1276 while (next != focused && !TAILQ_EMPTY(&(next->focus_head)))
1277 next = TAILQ_FIRST(&(next->focus_head));
1282 * Returns the focused con inside this client, descending the tree as far as
1283 * possible. This comes in handy when attaching a con to a workspace at the
1284 * currently focused position, for example.
1286 * Works like con_descend_focused but considers only tiling cons.
1289 Con *con_descend_tiling_focused(Con *con) {
1293 if (next == focused)
1297 TAILQ_FOREACH(child, &(next->focus_head), focused) {
1298 if (child->type == CT_FLOATING_CON)
1304 } while (before != next && next != focused);
1309 * Returns the leftmost, rightmost, etc. container in sub-tree. For example, if
1310 * direction is D_LEFT, then we return the rightmost container and if direction
1311 * is D_RIGHT, we return the leftmost container. This is because if we are
1312 * moving D_LEFT, and thus want the rightmost container.
1315 Con *con_descend_direction(Con *con, direction_t direction) {
1318 int orientation = con_orientation(con);
1319 DLOG("con_descend_direction(%p, orientation %d, direction %d)\n", con, orientation, direction);
1320 if (direction == D_LEFT || direction == D_RIGHT) {
1321 if (orientation == HORIZ) {
1322 /* If the direction is horizontal, we can use either the first
1323 * (D_RIGHT) or the last con (D_LEFT) */
1324 if (direction == D_RIGHT)
1325 most = TAILQ_FIRST(&(con->nodes_head));
1327 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1328 } else if (orientation == VERT) {
1329 /* Wrong orientation. We use the last focused con. Within that con,
1330 * we recurse to chose the left/right con or at least the last
1332 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1333 if (current->type != CT_FLOATING_CON) {
1339 /* If the con has no orientation set, it’s not a split container
1340 * but a container with a client window, so stop recursing */
1345 if (direction == D_UP || direction == D_DOWN) {
1346 if (orientation == VERT) {
1347 /* If the direction is vertical, we can use either the first
1348 * (D_DOWN) or the last con (D_UP) */
1349 if (direction == D_UP)
1350 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1352 most = TAILQ_FIRST(&(con->nodes_head));
1353 } else if (orientation == HORIZ) {
1354 /* Wrong orientation. We use the last focused con. Within that con,
1355 * we recurse to chose the top/bottom con or at least the last
1357 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1358 if (current->type != CT_FLOATING_CON) {
1364 /* If the con has no orientation set, it’s not a split container
1365 * but a container with a client window, so stop recursing */
1372 return con_descend_direction(most, direction);
1376 * Returns a "relative" Rect which contains the amount of pixels that need to
1377 * be added to the original Rect to get the final position (obviously the
1378 * amount of pixels for normal, 1pixel and borderless are different).
1381 Rect con_border_style_rect(Con *con) {
1382 adjacent_t borders_to_hide = ADJ_NONE;
1383 int border_width = con->current_border_width;
1384 DLOG("The border width for con is set to: %d\n", con->current_border_width);
1386 if (con->current_border_width < 0) {
1387 if (con_is_floating(con)) {
1388 border_width = config.default_floating_border_width;
1390 border_width = config.default_border_width;
1393 DLOG("Effective border width is set to: %d\n", border_width);
1394 /* Shortcut to avoid calling con_adjacent_borders() on dock containers. */
1395 int border_style = con_border_style(con);
1396 if (border_style == BS_NONE)
1397 return (Rect){0, 0, 0, 0};
1398 if (border_style == BS_NORMAL) {
1399 result = (Rect){border_width, 0, -(2 * border_width), -(border_width)};
1401 result = (Rect){border_width, border_width, -(2 * border_width), -(2 * border_width)};
1404 borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
1405 if (borders_to_hide & ADJ_LEFT_SCREEN_EDGE) {
1406 result.x -= border_width;
1407 result.width += border_width;
1409 if (borders_to_hide & ADJ_RIGHT_SCREEN_EDGE) {
1410 result.width += border_width;
1412 if (borders_to_hide & ADJ_UPPER_SCREEN_EDGE && (border_style != BS_NORMAL)) {
1413 result.y -= border_width;
1414 result.height += border_width;
1416 if (borders_to_hide & ADJ_LOWER_SCREEN_EDGE) {
1417 result.height += border_width;
1423 * Returns adjacent borders of the window. We need this if hide_edge_borders is
1426 adjacent_t con_adjacent_borders(Con *con) {
1427 adjacent_t result = ADJ_NONE;
1428 /* Floating windows are never adjacent to any other window, so
1429 don’t hide their border(s). This prevents bug #998. */
1430 if (con_is_floating(con))
1433 Con *workspace = con_get_workspace(con);
1434 if (con->rect.x == workspace->rect.x)
1435 result |= ADJ_LEFT_SCREEN_EDGE;
1436 if (con->rect.x + con->rect.width == workspace->rect.x + workspace->rect.width)
1437 result |= ADJ_RIGHT_SCREEN_EDGE;
1438 if (con->rect.y == workspace->rect.y)
1439 result |= ADJ_UPPER_SCREEN_EDGE;
1440 if (con->rect.y + con->rect.height == workspace->rect.y + workspace->rect.height)
1441 result |= ADJ_LOWER_SCREEN_EDGE;
1446 * Use this function to get a container’s border style. This is important
1447 * because when inside a stack, the border style is always BS_NORMAL.
1448 * For tabbed mode, the same applies, with one exception: when the container is
1449 * borderless and the only element in the tabbed container, the border is not
1452 * For children of a CT_DOCKAREA, the border style is always none.
1455 int con_border_style(Con *con) {
1456 Con *fs = con_get_fullscreen_con(con->parent, CF_OUTPUT);
1458 DLOG("this one is fullscreen! overriding BS_NONE\n");
1462 if (con->parent->layout == L_STACKED)
1463 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1465 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
1466 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1468 if (con->parent->type == CT_DOCKAREA)
1471 return con->border_style;
1475 * Sets the given border style on con, correctly keeping the position/size of a
1479 void con_set_border_style(Con *con, int border_style, int border_width) {
1480 /* Handle the simple case: non-floating containerns */
1481 if (!con_is_floating(con)) {
1482 con->border_style = border_style;
1483 con->current_border_width = border_width;
1487 /* For floating containers, we want to keep the position/size of the
1488 * *window* itself. We first add the border pixels to con->rect to make
1489 * con->rect represent the absolute position of the window (same for
1490 * parent). Then, we change the border style and subtract the new border
1491 * pixels. For the parent, we do the same also for the decoration. */
1492 DLOG("This is a floating container\n");
1494 Con *parent = con->parent;
1495 Rect bsr = con_border_style_rect(con);
1496 int deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1498 con->rect = rect_add(con->rect, bsr);
1499 parent->rect = rect_add(parent->rect, bsr);
1500 parent->rect.y += deco_height;
1501 parent->rect.height -= deco_height;
1503 /* Change the border style, get new border/decoration values. */
1504 con->border_style = border_style;
1505 con->current_border_width = border_width;
1506 bsr = con_border_style_rect(con);
1507 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1509 con->rect = rect_sub(con->rect, bsr);
1510 parent->rect = rect_sub(parent->rect, bsr);
1511 parent->rect.y -= deco_height;
1512 parent->rect.height += deco_height;
1516 * This function changes the layout of a given container. Use it to handle
1517 * special cases like changing a whole workspace to stacked/tabbed (creates a
1518 * new split container before).
1521 void con_set_layout(Con *con, layout_t layout) {
1522 DLOG("con_set_layout(%p, %d), con->type = %d\n",
1523 con, layout, con->type);
1525 /* Users can focus workspaces, but not any higher in the hierarchy.
1526 * Focus on the workspace is a special case, since in every other case, the
1527 * user means "change the layout of the parent split container". */
1528 if (con->type != CT_WORKSPACE)
1531 /* We fill in last_split_layout when switching to a different layout
1532 * since there are many places in the code that don’t use
1533 * con_set_layout(). */
1534 if (con->layout == L_SPLITH || con->layout == L_SPLITV)
1535 con->last_split_layout = con->layout;
1537 /* When the container type is CT_WORKSPACE, the user wants to change the
1538 * whole workspace into stacked/tabbed mode. To do this and still allow
1539 * intuitive operations (like level-up and then opening a new window), we
1540 * need to create a new split container. */
1541 if (con->type == CT_WORKSPACE &&
1542 (layout == L_STACKED || layout == L_TABBED)) {
1543 if (con_num_children(con) == 0) {
1544 DLOG("Setting workspace_layout to %d\n", layout);
1545 con->workspace_layout = layout;
1547 DLOG("Creating new split container\n");
1548 /* 1: create a new split container */
1549 Con *new = con_new(NULL, NULL);
1552 /* 2: Set the requested layout on the split container and mark it as
1554 new->layout = layout;
1555 new->last_split_layout = con->last_split_layout;
1557 /* Save the container that was focused before we move containers
1558 * around, but only if the container is visible (otherwise focus
1559 * will be restored properly automatically when switching). */
1560 Con *old_focused = TAILQ_FIRST(&(con->focus_head));
1561 if (old_focused == TAILQ_END(&(con->focus_head)))
1563 if (old_focused != NULL &&
1564 !workspace_is_visible(con_get_workspace(old_focused)))
1567 /* 3: move the existing cons of this workspace below the new con */
1568 DLOG("Moving cons\n");
1570 while (!TAILQ_EMPTY(&(con->nodes_head))) {
1571 child = TAILQ_FIRST(&(con->nodes_head));
1573 con_attach(child, new, true);
1576 /* 4: attach the new split container to the workspace */
1577 DLOG("Attaching new split to ws\n");
1578 con_attach(new, con, false);
1581 con_focus(old_focused);
1583 tree_flatten(croot);
1585 con_force_split_parents_redraw(con);
1589 if (layout == L_DEFAULT) {
1590 /* Special case: the layout formerly known as "default" (in combination
1591 * with an orientation). Since we switched to splith/splitv layouts,
1592 * using the "default" layout (which "only" should happen when using
1593 * legacy configs) is using the last split layout (either splith or
1594 * splitv) in order to still do the same thing. */
1595 con->layout = con->last_split_layout;
1596 /* In case last_split_layout was not initialized… */
1597 if (con->layout == L_DEFAULT)
1598 con->layout = L_SPLITH;
1600 con->layout = layout;
1602 con_force_split_parents_redraw(con);
1606 * This function toggles the layout of a given container. toggle_mode can be
1607 * either 'default' (toggle only between stacked/tabbed/last_split_layout),
1608 * 'split' (toggle only between splitv/splith) or 'all' (toggle between all
1612 void con_toggle_layout(Con *con, const char *toggle_mode) {
1614 /* Users can focus workspaces, but not any higher in the hierarchy.
1615 * Focus on the workspace is a special case, since in every other case, the
1616 * user means "change the layout of the parent split container". */
1617 if (con->type != CT_WORKSPACE)
1618 parent = con->parent;
1619 DLOG("con_toggle_layout(%p, %s), parent = %p\n", con, toggle_mode, parent);
1621 if (strcmp(toggle_mode, "split") == 0) {
1622 /* Toggle between splits. When the current layout is not a split
1623 * layout, we just switch back to last_split_layout. Otherwise, we
1624 * change to the opposite split layout. */
1625 if (parent->layout != L_SPLITH && parent->layout != L_SPLITV)
1626 con_set_layout(con, parent->last_split_layout);
1628 if (parent->layout == L_SPLITH)
1629 con_set_layout(con, L_SPLITV);
1631 con_set_layout(con, L_SPLITH);
1634 if (parent->layout == L_STACKED)
1635 con_set_layout(con, L_TABBED);
1636 else if (parent->layout == L_TABBED) {
1637 if (strcmp(toggle_mode, "all") == 0)
1638 con_set_layout(con, L_SPLITH);
1640 con_set_layout(con, parent->last_split_layout);
1641 } else if (parent->layout == L_SPLITH || parent->layout == L_SPLITV) {
1642 if (strcmp(toggle_mode, "all") == 0) {
1643 /* When toggling through all modes, we toggle between
1644 * splith/splitv, whereas normally we just directly jump to
1646 if (parent->layout == L_SPLITH)
1647 con_set_layout(con, L_SPLITV);
1649 con_set_layout(con, L_STACKED);
1651 con_set_layout(con, L_STACKED);
1658 * Callback which will be called when removing a child from the given con.
1659 * Kills the container if it is empty and replaces it with the child if there
1660 * is exactly one child.
1663 static void con_on_remove_child(Con *con) {
1664 DLOG("on_remove_child\n");
1666 /* Every container 'above' (in the hierarchy) the workspace content should
1667 * not be closed when the last child was removed */
1668 if (con->type == CT_OUTPUT ||
1669 con->type == CT_ROOT ||
1670 con->type == CT_DOCKAREA ||
1671 (con->parent != NULL && con->parent->type == CT_OUTPUT)) {
1672 DLOG("not handling, type = %d, name = %s\n", con->type, con->name);
1676 /* For workspaces, close them only if they're not visible anymore */
1677 if (con->type == CT_WORKSPACE) {
1678 if (TAILQ_EMPTY(&(con->focus_head)) && !workspace_is_visible(con)) {
1679 LOG("Closing old workspace (%p / %s), it is empty\n", con, con->name);
1680 yajl_gen gen = ipc_marshal_workspace_event("empty", con, NULL);
1681 tree_close(con, DONT_KILL_WINDOW, false, false);
1683 const unsigned char *payload;
1685 y(get_buf, &payload, &length);
1686 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, (const char *)payload);
1693 con_force_split_parents_redraw(con);
1694 con->urgent = con_has_urgent_child(con);
1695 con_update_parents_urgency(con);
1697 /* TODO: check if this container would swallow any other client and
1698 * don’t close it automatically. */
1699 int children = con_num_children(con);
1700 if (children == 0) {
1701 DLOG("Container empty, closing\n");
1702 tree_close(con, DONT_KILL_WINDOW, false, false);
1708 * Determines the minimum size of the given con by looking at its children (for
1709 * split/stacked/tabbed cons). Will be called when resizing floating cons
1712 Rect con_minimum_size(Con *con) {
1713 DLOG("Determining minimum size for con %p\n", con);
1715 if (con_is_leaf(con)) {
1716 DLOG("leaf node, returning 75x50\n");
1717 return (Rect){0, 0, 75, 50};
1720 if (con->type == CT_FLOATING_CON) {
1721 DLOG("floating con\n");
1722 Con *child = TAILQ_FIRST(&(con->nodes_head));
1723 return con_minimum_size(child);
1726 if (con->layout == L_STACKED || con->layout == L_TABBED) {
1727 uint32_t max_width = 0, max_height = 0, deco_height = 0;
1729 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1730 Rect min = con_minimum_size(child);
1731 deco_height += child->deco_rect.height;
1732 max_width = max(max_width, min.width);
1733 max_height = max(max_height, min.height);
1735 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
1736 max_width, max_height, deco_height);
1737 return (Rect){0, 0, max_width, max_height + deco_height};
1740 /* For horizontal/vertical split containers we sum up the width (h-split)
1741 * or height (v-split) and use the maximum of the height (h-split) or width
1742 * (v-split) as minimum size. */
1743 if (con_is_split(con)) {
1744 uint32_t width = 0, height = 0;
1746 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1747 Rect min = con_minimum_size(child);
1748 if (con->layout == L_SPLITH) {
1750 height = max(height, min.height);
1752 height += min.height;
1753 width = max(width, min.width);
1756 DLOG("split container, returning width = %d x height = %d\n", width, height);
1757 return (Rect){0, 0, width, height};
1760 ELOG("Unhandled case, type = %d, layout = %d, split = %d\n",
1761 con->type, con->layout, con_is_split(con));
1766 * Returns true if changing the focus to con would be allowed considering
1767 * the fullscreen focus constraints. Specifically, if a fullscreen container or
1768 * any of its descendants is focused, this function returns true if and only if
1769 * focusing con would mean that focus would still be visible on screen, i.e.,
1770 * the newly focused container would not be obscured by a fullscreen container.
1772 * In the simplest case, if a fullscreen container or any of its descendants is
1773 * fullscreen, this functions returns true if con is the fullscreen container
1774 * itself or any of its descendants, as this means focus wouldn't escape the
1775 * boundaries of the fullscreen container.
1777 * In case the fullscreen container is of type CF_OUTPUT, this function returns
1778 * true if con is on a different workspace, as focus wouldn't be obscured by
1779 * the fullscreen container that is constrained to a different workspace.
1781 * Note that this same logic can be applied to moving containers. If a
1782 * container can be focused under the fullscreen focus constraints, it can also
1783 * become a parent or sibling to the currently focused container.
1786 bool con_fullscreen_permits_focusing(Con *con) {
1787 /* No focus, no problem. */
1791 /* Find the first fullscreen ascendent. */
1793 while (fs && fs->fullscreen_mode == CF_NONE)
1796 /* fs must be non-NULL since the workspace con doesn’t have CF_NONE and
1797 * there always has to be a workspace con in the hierarchy. */
1799 /* The most common case is we hit the workspace level. In this
1800 * situation, changing focus is also harmless. */
1801 assert(fs->fullscreen_mode != CF_NONE);
1802 if (fs->type == CT_WORKSPACE)
1805 /* Allow it if the container itself is the fullscreen container. */
1809 /* If fullscreen is per-output, the focus being in a different workspace is
1810 * sufficient to guarantee that change won't leave fullscreen in bad shape. */
1811 if (fs->fullscreen_mode == CF_OUTPUT &&
1812 con_get_workspace(con) != con_get_workspace(fs)) {
1816 /* Allow it only if the container to be focused is contained within the
1817 * current fullscreen container. */
1819 if (con->parent == fs)
1824 /* Focusing con would hide it behind a fullscreen window, disallow it. */
1830 * Checks if the given container has an urgent child.
1833 bool con_has_urgent_child(Con *con) {
1836 if (con_is_leaf(con))
1839 /* We are not interested in floating windows since they can only be
1840 * attached to a workspace → nodes_head instead of focus_head */
1841 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1842 if (con_has_urgent_child(child))
1850 * Make all parent containers urgent if con is urgent or clear the urgent flag
1851 * of all parent containers if there are no more urgent children left.
1854 void con_update_parents_urgency(Con *con) {
1855 Con *parent = con->parent;
1857 bool new_urgency_value = con->urgent;
1858 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
1859 if (new_urgency_value) {
1860 parent->urgent = true;
1862 /* We can only reset the urgency when the parent
1863 * has no other urgent children */
1864 if (!con_has_urgent_child(parent))
1865 parent->urgent = false;
1867 parent = parent->parent;
1872 * Set urgency flag to the container, all the parent containers and the workspace.
1875 void con_set_urgency(Con *con, bool urgent) {
1876 if (urgent && focused == con) {
1877 DLOG("Ignoring urgency flag for current client\n");
1881 const bool old_urgent = con->urgent;
1883 if (con->urgency_timer == NULL) {
1884 con->urgent = urgent;
1886 DLOG("Discarding urgency WM_HINT because timer is running\n");
1891 gettimeofday(&con->window->urgent, NULL);
1893 con->window->urgent.tv_sec = 0;
1894 con->window->urgent.tv_usec = 0;
1898 con_update_parents_urgency(con);
1901 /* Set the urgency flag on the workspace, if a workspace could be found
1902 * (for dock clients, that is not the case). */
1903 if ((ws = con_get_workspace(con)) != NULL)
1904 workspace_update_urgent_flag(ws);
1906 if (con->urgent != old_urgent) {
1907 LOG("Urgency flag changed to %d\n", con->urgent);
1908 ipc_send_window_event("urgent", con);
1913 * Create a string representing the subtree under con.
1916 char *con_get_tree_representation(Con *con) {
1917 /* this code works as follows:
1918 * 1) create a string with the layout type (D/V/H/T/S) and an opening bracket
1919 * 2) append the tree representation of the children to the string
1920 * 3) add closing bracket
1922 * The recursion ends when we hit a leaf, in which case we return the
1923 * class_instance of the contained window.
1926 /* end of recursion */
1927 if (con_is_leaf(con)) {
1929 return sstrdup("nowin");
1931 if (!con->window->class_instance)
1932 return sstrdup("noinstance");
1934 return sstrdup(con->window->class_instance);
1938 /* 1) add the Layout type to buf */
1939 if (con->layout == L_DEFAULT)
1940 buf = sstrdup("D[");
1941 else if (con->layout == L_SPLITV)
1942 buf = sstrdup("V[");
1943 else if (con->layout == L_SPLITH)
1944 buf = sstrdup("H[");
1945 else if (con->layout == L_TABBED)
1946 buf = sstrdup("T[");
1947 else if (con->layout == L_STACKED)
1948 buf = sstrdup("S[");
1950 ELOG("BUG: Code not updated to account for new layout type\n");
1954 /* 2) append representation of children */
1956 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1957 char *child_txt = con_get_tree_representation(child);
1960 sasprintf(&tmp_buf, "%s%s%s", buf,
1961 (TAILQ_FIRST(&(con->nodes_head)) == child ? "" : " "), child_txt);
1966 /* 3) close the brackets */
1968 sasprintf(&complete_buf, "%s]", buf);
1971 return complete_buf;