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 = XCB_COPY_FROM_PARENT;
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 * Checks if the given container is either floating or inside some floating
453 * container. It returns the FLOATING_CON container.
456 Con *con_inside_floating(Con *con) {
458 if (con->type == CT_FLOATING_CON)
461 if (con->floating >= FLOATING_AUTO_ON)
464 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
467 return con_inside_floating(con->parent);
471 * Checks if the given container is inside a focused container.
474 bool con_inside_focused(Con *con) {
479 return con_inside_focused(con->parent);
483 * Returns the container with the given client window ID or NULL if no such
487 Con *con_by_window_id(xcb_window_t window) {
489 TAILQ_FOREACH(con, &all_cons, all_cons)
490 if (con->window != NULL && con->window->id == window)
496 * Returns the container with the given frame ID or NULL if no such container
500 Con *con_by_frame_id(xcb_window_t frame) {
502 TAILQ_FOREACH(con, &all_cons, all_cons)
503 if (con->frame == frame)
509 * Returns the container with the given mark or NULL if no such container
513 Con *con_by_mark(const char *mark) {
515 TAILQ_FOREACH(con, &all_cons, all_cons) {
516 if (con_has_mark(con, mark))
524 * Returns true if and only if the given containers holds the mark.
527 bool con_has_mark(Con *con, const char *mark) {
529 TAILQ_FOREACH(current, &(con->marks_head), marks) {
530 if (strcmp(current->name, mark) == 0)
538 * Toggles the mark on a container.
539 * If the container already has this mark, the mark is removed.
540 * Otherwise, the mark is assigned to the container.
543 void con_mark_toggle(Con *con, const char *mark, mark_mode_t mode) {
545 DLOG("Toggling mark \"%s\" on con = %p.\n", mark, con);
547 if (con_has_mark(con, mark)) {
550 con_mark(con, mark, mode);
555 * Assigns a mark to the container.
558 void con_mark(Con *con, const char *mark, mark_mode_t mode) {
560 DLOG("Setting mark \"%s\" on con = %p.\n", mark, con);
563 if (mode == MM_REPLACE) {
564 DLOG("Removing all existing marks on con = %p.\n", con);
567 TAILQ_FOREACH(current, &(con->marks_head), marks) {
568 con_unmark(current->name);
572 mark_t *new = scalloc(1, sizeof(mark_t));
573 new->name = sstrdup(mark);
574 TAILQ_INSERT_TAIL(&(con->marks_head), new, marks);
576 con->mark_changed = true;
580 * If mark is NULL, this removes all existing marks.
581 * Otherwise, it will only remove the given mark (if it is present).
584 void con_unmark(const char *mark) {
587 DLOG("Unmarking all containers.\n");
588 TAILQ_FOREACH(con, &all_cons, all_cons) {
589 if (TAILQ_EMPTY(&(con->marks_head)))
593 while (!TAILQ_EMPTY(&(con->marks_head))) {
594 current = TAILQ_FIRST(&(con->marks_head));
596 TAILQ_REMOVE(&(con->marks_head), current, marks);
600 con->mark_changed = true;
603 DLOG("Removing mark \"%s\".\n", mark);
604 con = con_by_mark(mark);
606 DLOG("No container found with this mark, so there is nothing to do.\n");
610 DLOG("Found mark on con = %p. Removing it now.\n", con);
611 con->mark_changed = true;
614 TAILQ_FOREACH(current, &(con->marks_head), marks) {
615 if (strcmp(current->name, mark) != 0)
619 TAILQ_REMOVE(&(con->marks_head), current, marks);
627 * Returns the first container below 'con' which wants to swallow this window
631 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
634 //DLOG("searching con for window %p starting at con %p\n", window, con);
635 //DLOG("class == %s\n", window->class_class);
637 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
638 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
639 if (!match_matches_window(match, window))
641 if (store_match != NULL)
642 *store_match = match;
645 Con *result = con_for_window(child, window, store_match);
650 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
651 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
652 if (!match_matches_window(match, window))
654 if (store_match != NULL)
655 *store_match = match;
658 Con *result = con_for_window(child, window, store_match);
667 * Returns the number of children of this container.
670 int con_num_children(Con *con) {
674 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
681 * Updates the percent attribute of the children of the given container. This
682 * function needs to be called when a window is added or removed from a
686 void con_fix_percent(Con *con) {
688 int children = con_num_children(con);
690 // calculate how much we have distributed and how many containers
691 // with a percentage set we have
693 int children_with_percent = 0;
694 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
695 if (child->percent > 0.0) {
696 total += child->percent;
697 ++children_with_percent;
701 // if there were children without a percentage set, set to a value that
702 // will make those children proportional to all others
703 if (children_with_percent != children) {
704 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
705 if (child->percent <= 0.0) {
706 if (children_with_percent == 0)
707 total += (child->percent = 1.0);
709 total += (child->percent = total / children_with_percent);
714 // if we got a zero, just distribute the space equally, otherwise
715 // distribute according to the proportions we got
717 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
718 child->percent = 1.0 / children;
719 } else if (total != 1.0) {
720 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
721 child->percent /= total;
726 * Toggles fullscreen mode for the given container. If there already is a
727 * fullscreen container on this workspace, fullscreen will be disabled and then
728 * enabled for the container the user wants to have in fullscreen mode.
731 void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
732 if (con->type == CT_WORKSPACE) {
733 DLOG("You cannot make a workspace fullscreen.\n");
737 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
739 if (con->fullscreen_mode == CF_NONE)
740 con_enable_fullscreen(con, fullscreen_mode);
742 con_disable_fullscreen(con);
746 * Sets the specified fullscreen mode for the given container, sends the
747 * “fullscreen_mode” event and changes the XCB fullscreen property of the
748 * container’s window, if any.
751 static void con_set_fullscreen_mode(Con *con, fullscreen_mode_t fullscreen_mode) {
752 con->fullscreen_mode = fullscreen_mode;
754 DLOG("mode now: %d\n", con->fullscreen_mode);
756 /* Send an ipc window "fullscreen_mode" event */
757 ipc_send_window_event("fullscreen_mode", con);
759 /* update _NET_WM_STATE if this container has a window */
760 /* TODO: when a window is assigned to a container which is already
761 * fullscreened, this state needs to be pushed to the client, too */
762 if (con->window == NULL)
765 if (con->fullscreen_mode != CF_NONE) {
766 DLOG("Setting _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
767 xcb_add_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
769 DLOG("Removing _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
770 xcb_remove_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
775 * Enables fullscreen mode for the given container, if necessary.
777 * If the container’s mode is already CF_OUTPUT or CF_GLOBAL, the container is
778 * kept fullscreen but its mode is set to CF_GLOBAL and CF_OUTPUT,
781 * Other fullscreen containers will be disabled first, if they hide the new
785 void con_enable_fullscreen(Con *con, fullscreen_mode_t fullscreen_mode) {
786 if (con->type == CT_WORKSPACE) {
787 DLOG("You cannot make a workspace fullscreen.\n");
791 assert(fullscreen_mode == CF_GLOBAL || fullscreen_mode == CF_OUTPUT);
793 if (fullscreen_mode == CF_GLOBAL)
794 DLOG("enabling global fullscreen for %p / %s\n", con, con->name);
796 DLOG("enabling fullscreen for %p / %s\n", con, con->name);
798 if (con->fullscreen_mode == fullscreen_mode) {
799 DLOG("fullscreen already enabled for %p / %s\n", con, con->name);
803 Con *con_ws = con_get_workspace(con);
805 /* Disable any fullscreen container that would conflict the new one. */
806 Con *fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
807 if (fullscreen == NULL)
808 fullscreen = con_get_fullscreen_con(con_ws, CF_OUTPUT);
809 if (fullscreen != NULL)
810 con_disable_fullscreen(fullscreen);
812 /* Set focus to new fullscreen container. Unless in global fullscreen mode
813 * and on another workspace restore focus afterwards.
814 * Switch to the container’s workspace if mode is global. */
815 Con *cur_ws = con_get_workspace(focused);
816 Con *old_focused = focused;
817 if (fullscreen_mode == CF_GLOBAL && cur_ws != con_ws)
818 workspace_show(con_ws);
820 if (fullscreen_mode != CF_GLOBAL && cur_ws != con_ws)
821 con_focus(old_focused);
823 con_set_fullscreen_mode(con, fullscreen_mode);
827 * Disables fullscreen mode for the given container regardless of the mode, if
831 void con_disable_fullscreen(Con *con) {
832 if (con->type == CT_WORKSPACE) {
833 DLOG("You cannot make a workspace fullscreen.\n");
837 DLOG("disabling fullscreen for %p / %s\n", con, con->name);
839 if (con->fullscreen_mode == CF_NONE) {
840 DLOG("fullscreen already disabled for %p / %s\n", con, con->name);
844 con_set_fullscreen_mode(con, CF_NONE);
847 static bool _con_move_to_con(Con *con, Con *target, bool behind_focused, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
848 Con *orig_target = target;
850 /* Prevent moving if this would violate the fullscreen focus restrictions. */
851 Con *target_ws = con_get_workspace(target);
852 if (!con_fullscreen_permits_focusing(target_ws)) {
853 LOG("Cannot move out of a fullscreen container.\n");
857 if (con_is_floating(con)) {
858 DLOG("Container is floating, using parent instead.\n");
862 Con *source_ws = con_get_workspace(con);
864 if (con->type == CT_WORKSPACE) {
865 /* Re-parent all of the old workspace's floating windows. */
867 while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
868 child = TAILQ_FIRST(&(source_ws->floating_head));
869 con_move_to_workspace(child, target_ws, true, true, false);
872 /* If there are no non-floating children, ignore the workspace. */
873 if (con_is_leaf(con))
876 con = workspace_encapsulate(con);
878 ELOG("Workspace failed to move its contents into a container!\n");
883 /* Save the urgency state so that we can restore it. */
884 bool urgent = con->urgent;
886 /* Save the current workspace. So we can call workspace_show() by the end
887 * of this function. */
888 Con *current_ws = con_get_workspace(focused);
890 Con *source_output = con_get_output(con),
891 *dest_output = con_get_output(target_ws);
893 /* 1: save the container which is going to be focused after the current
894 * container is moved away */
895 Con *focus_next = con_next_focused(con);
897 /* 2: we go up one level, but only when target is a normal container */
898 if (target->type != CT_WORKSPACE) {
899 DLOG("target originally = %p / %s / type %d\n", target, target->name, target->type);
900 target = target->parent;
903 /* 3: if the target container is floating, we get the workspace instead.
904 * Only tiling windows need to get inserted next to the current container.
906 Con *floatingcon = con_inside_floating(target);
907 if (floatingcon != NULL) {
908 DLOG("floatingcon, going up even further\n");
909 target = floatingcon->parent;
912 if (con->type == CT_FLOATING_CON) {
913 Con *ws = con_get_workspace(target);
914 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
918 if (source_output != dest_output) {
919 /* Take the relative coordinates of the current output, then add them
920 * to the coordinate space of the correct output */
921 if (fix_coordinates && con->type == CT_FLOATING_CON) {
922 floating_fix_coordinates(con, &(source_output->rect), &(dest_output->rect));
924 DLOG("Not fixing coordinates, fix_coordinates flag = %d\n", fix_coordinates);
926 /* If moving to a visible workspace, call show so it can be considered
927 * focused. Must do before attaching because workspace_show checks to see
928 * if focused container is in its area. */
929 if (!ignore_focus && workspace_is_visible(target_ws)) {
930 workspace_show(target_ws);
932 /* Don’t warp if told so (when dragging floating windows with the
933 * mouse for example) */
937 x_set_warp_to(&(con->rect));
941 /* If moving a fullscreen container and the destination already has a
942 * fullscreen window on it, un-fullscreen the target's fullscreen con. */
943 Con *fullscreen = con_get_fullscreen_con(target_ws, CF_OUTPUT);
944 if (con->fullscreen_mode != CF_NONE && fullscreen != NULL) {
945 con_toggle_fullscreen(fullscreen, CF_OUTPUT);
949 DLOG("Re-attaching container to %p / %s\n", target, target->name);
950 /* 4: re-attach the con to the parent of this focused container */
951 Con *parent = con->parent;
953 _con_attach(con, target, behind_focused ? NULL : orig_target, !behind_focused);
955 /* 5: fix the percentages */
956 con_fix_percent(parent);
958 con_fix_percent(target);
960 /* 6: focus the con on the target workspace, but only within that
961 * workspace, that is, don’t move focus away if the target workspace is
963 * We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
964 * we don’t focus when there is a fullscreen con on that workspace. We
965 * also don't do it if the caller requested to ignore focus. */
966 if (!ignore_focus && !con_is_internal(target_ws) && !fullscreen) {
967 /* We need to save the focused workspace on the output in case the
968 * new workspace is hidden and it's necessary to immediately switch
969 * back to the originally-focused workspace. */
970 Con *old_focus = TAILQ_FIRST(&(output_get_content(dest_output)->focus_head));
971 con_focus(con_descend_focused(con));
973 /* Restore focus if the output's focused workspace has changed. */
974 if (con_get_workspace(focused) != old_focus)
975 con_focus(old_focus);
978 /* 7: when moving to another workspace, we leave the focus on the current
979 * workspace. (see also #809) */
981 /* Descend focus stack in case focus_next is a workspace which can
982 * occur if we move to the same workspace. Also show current workspace
983 * to ensure it is focused. */
985 workspace_show(current_ws);
987 /* Set focus only if con was on current workspace before moving.
988 * Otherwise we would give focus to some window on different workspace. */
989 if (!ignore_focus && source_ws == current_ws)
990 con_focus(con_descend_focused(focus_next));
992 /* 8. If anything within the container is associated with a startup sequence,
993 * delete it so child windows won't be created on the old workspace. */
994 struct Startup_Sequence *sequence;
995 xcb_get_property_cookie_t cookie;
996 xcb_get_property_reply_t *startup_id_reply;
998 if (!con_is_leaf(con)) {
1000 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1004 cookie = xcb_get_property(conn, false, child->window->id,
1005 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1006 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1008 sequence = startup_sequence_get(child->window, startup_id_reply, true);
1009 if (sequence != NULL)
1010 startup_sequence_delete(sequence);
1015 cookie = xcb_get_property(conn, false, con->window->id,
1016 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1017 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1019 sequence = startup_sequence_get(con->window, startup_id_reply, true);
1020 if (sequence != NULL)
1021 startup_sequence_delete(sequence);
1024 CALL(parent, on_remove_child);
1026 /* 9. If the container was marked urgent, move the urgency hint. */
1028 workspace_update_urgent_flag(source_ws);
1029 con_set_urgency(con, true);
1032 ipc_send_window_event("move", con);
1037 * Moves the given container to the given mark.
1040 bool con_move_to_mark(Con *con, const char *mark) {
1041 Con *target = con_by_mark(mark);
1042 if (target == NULL) {
1043 DLOG("found no container with mark \"%s\"\n", mark);
1047 /* For floating target containers, we just send the window to the same workspace. */
1048 if (con_is_floating(target)) {
1049 DLOG("target container is floating, moving container to target's workspace.\n");
1050 con_move_to_workspace(con, con_get_workspace(target), true, false, false);
1054 if (con->type == CT_WORKSPACE) {
1055 DLOG("target container is a workspace, simply moving the container there.\n");
1056 con_move_to_workspace(con, target, true, false, false);
1060 /* For split containers, we use the currently focused container within it.
1061 * This allows setting marks on, e.g., tabbed containers which will move
1062 * con to a new tab behind the focused tab. */
1063 if (con_is_split(target)) {
1064 DLOG("target is a split container, descending to the currently focused child.\n");
1065 target = TAILQ_FIRST(&(target->focus_head));
1068 if (con == target || con == target->parent) {
1069 DLOG("cannot move the container to or inside itself, aborting.\n");
1073 return _con_move_to_con(con, target, false, true, false, false);
1077 * Moves the given container to the currently focused container on the given
1080 * The fix_coordinates flag will translate the current coordinates (offset from
1081 * the monitor position basically) to appropriate coordinates on the
1082 * destination workspace.
1083 * Not enabling this behaviour comes in handy when this function gets called by
1084 * floating_maybe_reassign_ws, which will only "move" a floating window when it
1085 * *already* changed its coordinates to a different output.
1087 * The dont_warp flag disables pointer warping and will be set when this
1088 * function is called while dragging a floating window.
1090 * If ignore_focus is set, the container will be moved without modifying focus
1093 * TODO: is there a better place for this function?
1096 void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
1097 assert(workspace->type == CT_WORKSPACE);
1099 Con *source_ws = con_get_workspace(con);
1100 if (workspace == source_ws) {
1101 DLOG("Not moving, already there\n");
1105 Con *target = con_descend_focused(workspace);
1106 _con_move_to_con(con, target, true, fix_coordinates, dont_warp, ignore_focus);
1110 * Returns the orientation of the given container (for stacked containers,
1111 * vertical orientation is used regardless of the actual orientation of the
1115 orientation_t con_orientation(Con *con) {
1116 switch (con->layout) {
1118 /* stacking containers behave like they are in vertical orientation */
1123 /* tabbed containers behave like they are in vertical orientation */
1128 DLOG("Someone called con_orientation() on a con with L_DEFAULT, this is a bug in the code.\n");
1134 DLOG("con_orientation() called on dockarea/output (%d) container %p\n", con->layout, con);
1139 DLOG("con_orientation() ran into default\n");
1145 * Returns the container which will be focused next when the given container
1146 * is not available anymore. Called in tree_close and con_move_to_workspace
1147 * to properly restore focus.
1150 Con *con_next_focused(Con *con) {
1152 /* floating containers are attached to a workspace, so we focus either the
1153 * next floating container (if any) or the workspace itself. */
1154 if (con->type == CT_FLOATING_CON) {
1155 DLOG("selecting next for CT_FLOATING_CON\n");
1156 next = TAILQ_NEXT(con, floating_windows);
1157 DLOG("next = %p\n", next);
1159 next = TAILQ_PREV(con, floating_head, floating_windows);
1160 DLOG("using prev, next = %p\n", next);
1163 Con *ws = con_get_workspace(con);
1165 DLOG("no more floating containers for next = %p, restoring workspace focus\n", next);
1166 while (next != TAILQ_END(&(ws->focus_head)) && !TAILQ_EMPTY(&(next->focus_head))) {
1167 next = TAILQ_FIRST(&(next->focus_head));
1169 DLOG("skipping container itself, we want the next client\n");
1170 next = TAILQ_NEXT(next, focused);
1173 if (next == TAILQ_END(&(ws->focus_head))) {
1174 DLOG("Focus list empty, returning ws\n");
1178 /* Instead of returning the next CT_FLOATING_CON, we descend it to
1179 * get an actual window to focus. */
1180 next = con_descend_focused(next);
1185 /* dock clients cannot be focused, so we focus the workspace instead */
1186 if (con->parent->type == CT_DOCKAREA) {
1187 DLOG("selecting workspace for dock client\n");
1188 return con_descend_focused(output_get_content(con->parent->parent));
1191 /* if 'con' is not the first entry in the focus stack, use the first one as
1192 * it’s currently focused already */
1193 Con *first = TAILQ_FIRST(&(con->parent->focus_head));
1195 DLOG("Using first entry %p\n", first);
1198 /* try to focus the next container on the same level as this one or fall
1199 * back to its parent */
1200 if (!(next = TAILQ_NEXT(con, focused)))
1204 /* now go down the focus stack as far as
1205 * possible, excluding the current container */
1206 while (!TAILQ_EMPTY(&(next->focus_head)) &&
1207 TAILQ_FIRST(&(next->focus_head)) != con)
1208 next = TAILQ_FIRST(&(next->focus_head));
1214 * Get the next/previous container in the specified orientation. This may
1215 * travel up until it finds a container with suitable orientation.
1218 Con *con_get_next(Con *con, char way, orientation_t orientation) {
1219 DLOG("con_get_next(way=%c, orientation=%d)\n", way, orientation);
1220 /* 1: get the first parent with the same orientation */
1222 while (con_orientation(cur->parent) != orientation) {
1223 DLOG("need to go one level further up\n");
1224 if (cur->parent->type == CT_WORKSPACE) {
1225 LOG("that's a workspace, we can't go further up\n");
1231 /* 2: chose next (or previous) */
1234 next = TAILQ_NEXT(cur, nodes);
1235 /* if we are at the end of the list, we need to wrap */
1236 if (next == TAILQ_END(&(parent->nodes_head)))
1239 next = TAILQ_PREV(cur, nodes_head, nodes);
1240 /* if we are at the end of the list, we need to wrap */
1241 if (next == TAILQ_END(&(cur->nodes_head)))
1244 DLOG("next = %p\n", next);
1250 * Returns the focused con inside this client, descending the tree as far as
1251 * possible. This comes in handy when attaching a con to a workspace at the
1252 * currently focused position, for example.
1255 Con *con_descend_focused(Con *con) {
1257 while (next != focused && !TAILQ_EMPTY(&(next->focus_head)))
1258 next = TAILQ_FIRST(&(next->focus_head));
1263 * Returns the focused con inside this client, descending the tree as far as
1264 * possible. This comes in handy when attaching a con to a workspace at the
1265 * currently focused position, for example.
1267 * Works like con_descend_focused but considers only tiling cons.
1270 Con *con_descend_tiling_focused(Con *con) {
1274 if (next == focused)
1278 TAILQ_FOREACH(child, &(next->focus_head), focused) {
1279 if (child->type == CT_FLOATING_CON)
1285 } while (before != next && next != focused);
1290 * Returns the leftmost, rightmost, etc. container in sub-tree. For example, if
1291 * direction is D_LEFT, then we return the rightmost container and if direction
1292 * is D_RIGHT, we return the leftmost container. This is because if we are
1293 * moving D_LEFT, and thus want the rightmost container.
1296 Con *con_descend_direction(Con *con, direction_t direction) {
1299 int orientation = con_orientation(con);
1300 DLOG("con_descend_direction(%p, orientation %d, direction %d)\n", con, orientation, direction);
1301 if (direction == D_LEFT || direction == D_RIGHT) {
1302 if (orientation == HORIZ) {
1303 /* If the direction is horizontal, we can use either the first
1304 * (D_RIGHT) or the last con (D_LEFT) */
1305 if (direction == D_RIGHT)
1306 most = TAILQ_FIRST(&(con->nodes_head));
1308 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1309 } else if (orientation == VERT) {
1310 /* Wrong orientation. We use the last focused con. Within that con,
1311 * we recurse to chose the left/right con or at least the last
1313 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1314 if (current->type != CT_FLOATING_CON) {
1320 /* If the con has no orientation set, it’s not a split container
1321 * but a container with a client window, so stop recursing */
1326 if (direction == D_UP || direction == D_DOWN) {
1327 if (orientation == VERT) {
1328 /* If the direction is vertical, we can use either the first
1329 * (D_DOWN) or the last con (D_UP) */
1330 if (direction == D_UP)
1331 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1333 most = TAILQ_FIRST(&(con->nodes_head));
1334 } else if (orientation == HORIZ) {
1335 /* Wrong orientation. We use the last focused con. Within that con,
1336 * we recurse to chose the top/bottom con or at least the last
1338 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1339 if (current->type != CT_FLOATING_CON) {
1345 /* If the con has no orientation set, it’s not a split container
1346 * but a container with a client window, so stop recursing */
1353 return con_descend_direction(most, direction);
1357 * Returns a "relative" Rect which contains the amount of pixels that need to
1358 * be added to the original Rect to get the final position (obviously the
1359 * amount of pixels for normal, 1pixel and borderless are different).
1362 Rect con_border_style_rect(Con *con) {
1363 adjacent_t borders_to_hide = ADJ_NONE;
1364 int border_width = con->current_border_width;
1365 DLOG("The border width for con is set to: %d\n", con->current_border_width);
1367 if (con->current_border_width < 0) {
1368 if (con_is_floating(con)) {
1369 border_width = config.default_floating_border_width;
1371 border_width = config.default_border_width;
1374 DLOG("Effective border width is set to: %d\n", border_width);
1375 /* Shortcut to avoid calling con_adjacent_borders() on dock containers. */
1376 int border_style = con_border_style(con);
1377 if (border_style == BS_NONE)
1378 return (Rect){0, 0, 0, 0};
1379 if (border_style == BS_NORMAL) {
1380 result = (Rect){border_width, 0, -(2 * border_width), -(border_width)};
1382 result = (Rect){border_width, border_width, -(2 * border_width), -(2 * border_width)};
1385 borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
1386 if (borders_to_hide & ADJ_LEFT_SCREEN_EDGE) {
1387 result.x -= border_width;
1388 result.width += border_width;
1390 if (borders_to_hide & ADJ_RIGHT_SCREEN_EDGE) {
1391 result.width += border_width;
1393 if (borders_to_hide & ADJ_UPPER_SCREEN_EDGE && (border_style != BS_NORMAL)) {
1394 result.y -= border_width;
1395 result.height += border_width;
1397 if (borders_to_hide & ADJ_LOWER_SCREEN_EDGE) {
1398 result.height += border_width;
1404 * Returns adjacent borders of the window. We need this if hide_edge_borders is
1407 adjacent_t con_adjacent_borders(Con *con) {
1408 adjacent_t result = ADJ_NONE;
1409 /* Floating windows are never adjacent to any other window, so
1410 don’t hide their border(s). This prevents bug #998. */
1411 if (con_is_floating(con))
1414 Con *workspace = con_get_workspace(con);
1415 if (con->rect.x == workspace->rect.x)
1416 result |= ADJ_LEFT_SCREEN_EDGE;
1417 if (con->rect.x + con->rect.width == workspace->rect.x + workspace->rect.width)
1418 result |= ADJ_RIGHT_SCREEN_EDGE;
1419 if (con->rect.y == workspace->rect.y)
1420 result |= ADJ_UPPER_SCREEN_EDGE;
1421 if (con->rect.y + con->rect.height == workspace->rect.y + workspace->rect.height)
1422 result |= ADJ_LOWER_SCREEN_EDGE;
1427 * Use this function to get a container’s border style. This is important
1428 * because when inside a stack, the border style is always BS_NORMAL.
1429 * For tabbed mode, the same applies, with one exception: when the container is
1430 * borderless and the only element in the tabbed container, the border is not
1433 * For children of a CT_DOCKAREA, the border style is always none.
1436 int con_border_style(Con *con) {
1437 Con *fs = con_get_fullscreen_con(con->parent, CF_OUTPUT);
1439 DLOG("this one is fullscreen! overriding BS_NONE\n");
1443 if (con->parent->layout == L_STACKED)
1444 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1446 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
1447 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1449 if (con->parent->type == CT_DOCKAREA)
1452 return con->border_style;
1456 * Sets the given border style on con, correctly keeping the position/size of a
1460 void con_set_border_style(Con *con, int border_style, int border_width) {
1461 /* Handle the simple case: non-floating containerns */
1462 if (!con_is_floating(con)) {
1463 con->border_style = border_style;
1464 con->current_border_width = border_width;
1468 /* For floating containers, we want to keep the position/size of the
1469 * *window* itself. We first add the border pixels to con->rect to make
1470 * con->rect represent the absolute position of the window (same for
1471 * parent). Then, we change the border style and subtract the new border
1472 * pixels. For the parent, we do the same also for the decoration. */
1473 DLOG("This is a floating container\n");
1475 Con *parent = con->parent;
1476 Rect bsr = con_border_style_rect(con);
1477 int deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1479 con->rect = rect_add(con->rect, bsr);
1480 parent->rect = rect_add(parent->rect, bsr);
1481 parent->rect.y += deco_height;
1482 parent->rect.height -= deco_height;
1484 /* Change the border style, get new border/decoration values. */
1485 con->border_style = border_style;
1486 con->current_border_width = border_width;
1487 bsr = con_border_style_rect(con);
1488 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1490 con->rect = rect_sub(con->rect, bsr);
1491 parent->rect = rect_sub(parent->rect, bsr);
1492 parent->rect.y -= deco_height;
1493 parent->rect.height += deco_height;
1497 * This function changes the layout of a given container. Use it to handle
1498 * special cases like changing a whole workspace to stacked/tabbed (creates a
1499 * new split container before).
1502 void con_set_layout(Con *con, layout_t layout) {
1503 DLOG("con_set_layout(%p, %d), con->type = %d\n",
1504 con, layout, con->type);
1506 /* Users can focus workspaces, but not any higher in the hierarchy.
1507 * Focus on the workspace is a special case, since in every other case, the
1508 * user means "change the layout of the parent split container". */
1509 if (con->type != CT_WORKSPACE)
1512 /* We fill in last_split_layout when switching to a different layout
1513 * since there are many places in the code that don’t use
1514 * con_set_layout(). */
1515 if (con->layout == L_SPLITH || con->layout == L_SPLITV)
1516 con->last_split_layout = con->layout;
1518 /* When the container type is CT_WORKSPACE, the user wants to change the
1519 * whole workspace into stacked/tabbed mode. To do this and still allow
1520 * intuitive operations (like level-up and then opening a new window), we
1521 * need to create a new split container. */
1522 if (con->type == CT_WORKSPACE &&
1523 (layout == L_STACKED || layout == L_TABBED)) {
1524 if (con_num_children(con) == 0) {
1525 DLOG("Setting workspace_layout to %d\n", layout);
1526 con->workspace_layout = layout;
1528 DLOG("Creating new split container\n");
1529 /* 1: create a new split container */
1530 Con *new = con_new(NULL, NULL);
1533 /* 2: Set the requested layout on the split container and mark it as
1535 new->layout = layout;
1536 new->last_split_layout = con->last_split_layout;
1538 /* Save the container that was focused before we move containers
1539 * around, but only if the container is visible (otherwise focus
1540 * will be restored properly automatically when switching). */
1541 Con *old_focused = TAILQ_FIRST(&(con->focus_head));
1542 if (old_focused == TAILQ_END(&(con->focus_head)))
1544 if (old_focused != NULL &&
1545 !workspace_is_visible(con_get_workspace(old_focused)))
1548 /* 3: move the existing cons of this workspace below the new con */
1549 DLOG("Moving cons\n");
1551 while (!TAILQ_EMPTY(&(con->nodes_head))) {
1552 child = TAILQ_FIRST(&(con->nodes_head));
1554 con_attach(child, new, true);
1557 /* 4: attach the new split container to the workspace */
1558 DLOG("Attaching new split to ws\n");
1559 con_attach(new, con, false);
1562 con_focus(old_focused);
1564 tree_flatten(croot);
1566 con_force_split_parents_redraw(con);
1570 if (layout == L_DEFAULT) {
1571 /* Special case: the layout formerly known as "default" (in combination
1572 * with an orientation). Since we switched to splith/splitv layouts,
1573 * using the "default" layout (which "only" should happen when using
1574 * legacy configs) is using the last split layout (either splith or
1575 * splitv) in order to still do the same thing. */
1576 con->layout = con->last_split_layout;
1577 /* In case last_split_layout was not initialized… */
1578 if (con->layout == L_DEFAULT)
1579 con->layout = L_SPLITH;
1581 con->layout = layout;
1583 con_force_split_parents_redraw(con);
1587 * This function toggles the layout of a given container. toggle_mode can be
1588 * either 'default' (toggle only between stacked/tabbed/last_split_layout),
1589 * 'split' (toggle only between splitv/splith) or 'all' (toggle between all
1593 void con_toggle_layout(Con *con, const char *toggle_mode) {
1595 /* Users can focus workspaces, but not any higher in the hierarchy.
1596 * Focus on the workspace is a special case, since in every other case, the
1597 * user means "change the layout of the parent split container". */
1598 if (con->type != CT_WORKSPACE)
1599 parent = con->parent;
1600 DLOG("con_toggle_layout(%p, %s), parent = %p\n", con, toggle_mode, parent);
1602 if (strcmp(toggle_mode, "split") == 0) {
1603 /* Toggle between splits. When the current layout is not a split
1604 * layout, we just switch back to last_split_layout. Otherwise, we
1605 * change to the opposite split layout. */
1606 if (parent->layout != L_SPLITH && parent->layout != L_SPLITV)
1607 con_set_layout(con, parent->last_split_layout);
1609 if (parent->layout == L_SPLITH)
1610 con_set_layout(con, L_SPLITV);
1612 con_set_layout(con, L_SPLITH);
1615 if (parent->layout == L_STACKED)
1616 con_set_layout(con, L_TABBED);
1617 else if (parent->layout == L_TABBED) {
1618 if (strcmp(toggle_mode, "all") == 0)
1619 con_set_layout(con, L_SPLITH);
1621 con_set_layout(con, parent->last_split_layout);
1622 } else if (parent->layout == L_SPLITH || parent->layout == L_SPLITV) {
1623 if (strcmp(toggle_mode, "all") == 0) {
1624 /* When toggling through all modes, we toggle between
1625 * splith/splitv, whereas normally we just directly jump to
1627 if (parent->layout == L_SPLITH)
1628 con_set_layout(con, L_SPLITV);
1630 con_set_layout(con, L_STACKED);
1632 con_set_layout(con, L_STACKED);
1639 * Callback which will be called when removing a child from the given con.
1640 * Kills the container if it is empty and replaces it with the child if there
1641 * is exactly one child.
1644 static void con_on_remove_child(Con *con) {
1645 DLOG("on_remove_child\n");
1647 /* Every container 'above' (in the hierarchy) the workspace content should
1648 * not be closed when the last child was removed */
1649 if (con->type == CT_OUTPUT ||
1650 con->type == CT_ROOT ||
1651 con->type == CT_DOCKAREA ||
1652 (con->parent != NULL && con->parent->type == CT_OUTPUT)) {
1653 DLOG("not handling, type = %d, name = %s\n", con->type, con->name);
1657 /* For workspaces, close them only if they're not visible anymore */
1658 if (con->type == CT_WORKSPACE) {
1659 if (TAILQ_EMPTY(&(con->focus_head)) && !workspace_is_visible(con)) {
1660 LOG("Closing old workspace (%p / %s), it is empty\n", con, con->name);
1661 yajl_gen gen = ipc_marshal_workspace_event("empty", con, NULL);
1662 tree_close(con, DONT_KILL_WINDOW, false, false);
1664 const unsigned char *payload;
1666 y(get_buf, &payload, &length);
1667 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, (const char *)payload);
1674 con_force_split_parents_redraw(con);
1675 con->urgent = con_has_urgent_child(con);
1676 con_update_parents_urgency(con);
1678 /* TODO: check if this container would swallow any other client and
1679 * don’t close it automatically. */
1680 int children = con_num_children(con);
1681 if (children == 0) {
1682 DLOG("Container empty, closing\n");
1683 tree_close(con, DONT_KILL_WINDOW, false, false);
1689 * Determines the minimum size of the given con by looking at its children (for
1690 * split/stacked/tabbed cons). Will be called when resizing floating cons
1693 Rect con_minimum_size(Con *con) {
1694 DLOG("Determining minimum size for con %p\n", con);
1696 if (con_is_leaf(con)) {
1697 DLOG("leaf node, returning 75x50\n");
1698 return (Rect){0, 0, 75, 50};
1701 if (con->type == CT_FLOATING_CON) {
1702 DLOG("floating con\n");
1703 Con *child = TAILQ_FIRST(&(con->nodes_head));
1704 return con_minimum_size(child);
1707 if (con->layout == L_STACKED || con->layout == L_TABBED) {
1708 uint32_t max_width = 0, max_height = 0, deco_height = 0;
1710 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1711 Rect min = con_minimum_size(child);
1712 deco_height += child->deco_rect.height;
1713 max_width = max(max_width, min.width);
1714 max_height = max(max_height, min.height);
1716 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
1717 max_width, max_height, deco_height);
1718 return (Rect){0, 0, max_width, max_height + deco_height};
1721 /* For horizontal/vertical split containers we sum up the width (h-split)
1722 * or height (v-split) and use the maximum of the height (h-split) or width
1723 * (v-split) as minimum size. */
1724 if (con_is_split(con)) {
1725 uint32_t width = 0, height = 0;
1727 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1728 Rect min = con_minimum_size(child);
1729 if (con->layout == L_SPLITH) {
1731 height = max(height, min.height);
1733 height += min.height;
1734 width = max(width, min.width);
1737 DLOG("split container, returning width = %d x height = %d\n", width, height);
1738 return (Rect){0, 0, width, height};
1741 ELOG("Unhandled case, type = %d, layout = %d, split = %d\n",
1742 con->type, con->layout, con_is_split(con));
1747 * Returns true if changing the focus to con would be allowed considering
1748 * the fullscreen focus constraints. Specifically, if a fullscreen container or
1749 * any of its descendants is focused, this function returns true if and only if
1750 * focusing con would mean that focus would still be visible on screen, i.e.,
1751 * the newly focused container would not be obscured by a fullscreen container.
1753 * In the simplest case, if a fullscreen container or any of its descendants is
1754 * fullscreen, this functions returns true if con is the fullscreen container
1755 * itself or any of its descendants, as this means focus wouldn't escape the
1756 * boundaries of the fullscreen container.
1758 * In case the fullscreen container is of type CF_OUTPUT, this function returns
1759 * true if con is on a different workspace, as focus wouldn't be obscured by
1760 * the fullscreen container that is constrained to a different workspace.
1762 * Note that this same logic can be applied to moving containers. If a
1763 * container can be focused under the fullscreen focus constraints, it can also
1764 * become a parent or sibling to the currently focused container.
1767 bool con_fullscreen_permits_focusing(Con *con) {
1768 /* No focus, no problem. */
1772 /* Find the first fullscreen ascendent. */
1774 while (fs && fs->fullscreen_mode == CF_NONE)
1777 /* fs must be non-NULL since the workspace con doesn’t have CF_NONE and
1778 * there always has to be a workspace con in the hierarchy. */
1780 /* The most common case is we hit the workspace level. In this
1781 * situation, changing focus is also harmless. */
1782 assert(fs->fullscreen_mode != CF_NONE);
1783 if (fs->type == CT_WORKSPACE)
1786 /* Allow it if the container itself is the fullscreen container. */
1790 /* If fullscreen is per-output, the focus being in a different workspace is
1791 * sufficient to guarantee that change won't leave fullscreen in bad shape. */
1792 if (fs->fullscreen_mode == CF_OUTPUT &&
1793 con_get_workspace(con) != con_get_workspace(fs)) {
1797 /* Allow it only if the container to be focused is contained within the
1798 * current fullscreen container. */
1800 if (con->parent == fs)
1805 /* Focusing con would hide it behind a fullscreen window, disallow it. */
1811 * Checks if the given container has an urgent child.
1814 bool con_has_urgent_child(Con *con) {
1817 if (con_is_leaf(con))
1820 /* We are not interested in floating windows since they can only be
1821 * attached to a workspace → nodes_head instead of focus_head */
1822 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1823 if (con_has_urgent_child(child))
1831 * Make all parent containers urgent if con is urgent or clear the urgent flag
1832 * of all parent containers if there are no more urgent children left.
1835 void con_update_parents_urgency(Con *con) {
1836 Con *parent = con->parent;
1838 bool new_urgency_value = con->urgent;
1839 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
1840 if (new_urgency_value) {
1841 parent->urgent = true;
1843 /* We can only reset the urgency when the parent
1844 * has no other urgent children */
1845 if (!con_has_urgent_child(parent))
1846 parent->urgent = false;
1848 parent = parent->parent;
1853 * Set urgency flag to the container, all the parent containers and the workspace.
1856 void con_set_urgency(Con *con, bool urgent) {
1857 if (urgent && focused == con) {
1858 DLOG("Ignoring urgency flag for current client\n");
1862 const bool old_urgent = con->urgent;
1864 if (con->urgency_timer == NULL) {
1865 con->urgent = urgent;
1867 DLOG("Discarding urgency WM_HINT because timer is running\n");
1872 gettimeofday(&con->window->urgent, NULL);
1874 con->window->urgent.tv_sec = 0;
1875 con->window->urgent.tv_usec = 0;
1879 con_update_parents_urgency(con);
1882 /* Set the urgency flag on the workspace, if a workspace could be found
1883 * (for dock clients, that is not the case). */
1884 if ((ws = con_get_workspace(con)) != NULL)
1885 workspace_update_urgent_flag(ws);
1887 if (con->urgent != old_urgent) {
1888 LOG("Urgency flag changed to %d\n", con->urgent);
1889 ipc_send_window_event("urgent", con);
1894 * Create a string representing the subtree under con.
1897 char *con_get_tree_representation(Con *con) {
1898 /* this code works as follows:
1899 * 1) create a string with the layout type (D/V/H/T/S) and an opening bracket
1900 * 2) append the tree representation of the children to the string
1901 * 3) add closing bracket
1903 * The recursion ends when we hit a leaf, in which case we return the
1904 * class_instance of the contained window.
1907 /* end of recursion */
1908 if (con_is_leaf(con)) {
1910 return sstrdup("nowin");
1912 if (!con->window->class_instance)
1913 return sstrdup("noinstance");
1915 return sstrdup(con->window->class_instance);
1919 /* 1) add the Layout type to buf */
1920 if (con->layout == L_DEFAULT)
1921 buf = sstrdup("D[");
1922 else if (con->layout == L_SPLITV)
1923 buf = sstrdup("V[");
1924 else if (con->layout == L_SPLITH)
1925 buf = sstrdup("H[");
1926 else if (con->layout == L_TABBED)
1927 buf = sstrdup("T[");
1928 else if (con->layout == L_STACKED)
1929 buf = sstrdup("S[");
1931 ELOG("BUG: Code not updated to account for new layout type\n");
1935 /* 2) append representation of children */
1937 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1938 char *child_txt = con_get_tree_representation(child);
1941 sasprintf(&tmp_buf, "%s%s%s", buf,
1942 (TAILQ_FIRST(&(con->nodes_head)) == child ? "" : " "), child_txt);
1947 /* 3) close the brackets */
1949 sasprintf(&complete_buf, "%s]", buf);
1952 return complete_buf;