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 * Closes the given container.
227 void con_close(Con *con, kill_window_t kill_window) {
229 DLOG("Closing con = %p.\n", con);
231 /* We never close output or root containers. */
232 if (con->type == CT_OUTPUT || con->type == CT_ROOT) {
233 DLOG("con = %p is of type %d, not closing anything.\n", con, con->type);
237 if (con->type == CT_WORKSPACE) {
238 DLOG("con = %p is a workspace, closing all children instead.\n", con);
239 Con *child, *nextchild;
240 for (child = TAILQ_FIRST(&(con->focus_head)); child;) {
241 nextchild = TAILQ_NEXT(child, focused);
242 DLOG("killing child = %p.\n", child);
243 tree_close_internal(child, kill_window, false, false);
250 tree_close_internal(con, kill_window, false, false);
254 * Returns true when this node is a leaf node (has no children)
257 bool con_is_leaf(Con *con) {
258 return TAILQ_EMPTY(&(con->nodes_head));
262 * Returns true when this con is a leaf node with a managed X11 window (e.g.,
263 * excluding dock containers)
265 bool con_has_managed_window(Con *con) {
266 return (con != NULL && con->window != NULL && con->window->id != XCB_WINDOW_NONE && con_get_workspace(con) != NULL);
270 * Returns true if this node has regular or floating children.
273 bool con_has_children(Con *con) {
274 return (!con_is_leaf(con) || !TAILQ_EMPTY(&(con->floating_head)));
278 * Returns true if a container should be considered split.
281 bool con_is_split(Con *con) {
282 if (con_is_leaf(con))
285 switch (con->layout) {
296 * This will only return true for containers which have some parent with
297 * a tabbed / stacked parent of which they are not the currently focused child.
300 bool con_is_hidden(Con *con) {
303 /* ascend to the workspace level and memorize the highest-up container
304 * which is stacked or tabbed. */
305 while (current != NULL && current->type != CT_WORKSPACE) {
306 Con *parent = current->parent;
307 if (parent != NULL && (parent->layout == L_TABBED || parent->layout == L_STACKED)) {
308 if (TAILQ_FIRST(&(parent->focus_head)) != current)
319 * Returns whether the container or any of its children is sticky.
322 bool con_is_sticky(Con *con) {
327 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
328 if (con_is_sticky(child))
336 * Returns true if this node accepts a window (if the node swallows windows,
337 * it might already have swallowed enough and cannot hold any more).
340 bool con_accepts_window(Con *con) {
341 /* 1: workspaces never accept direct windows */
342 if (con->type == CT_WORKSPACE)
345 if (con_is_split(con)) {
346 DLOG("container %p does not accept windows, it is a split container.\n", con);
350 /* TODO: if this is a swallowing container, we need to check its max_clients */
351 return (con->window == NULL);
355 * Gets the output container (first container with CT_OUTPUT in hierarchy) this
359 Con *con_get_output(Con *con) {
361 while (result != NULL && result->type != CT_OUTPUT)
362 result = result->parent;
363 /* We must be able to get an output because focus can never be set higher
364 * in the tree (root node cannot be focused). */
365 assert(result != NULL);
370 * Gets the workspace container this node is on.
373 Con *con_get_workspace(Con *con) {
375 while (result != NULL && result->type != CT_WORKSPACE)
376 result = result->parent;
381 * Searches parenst of the given 'con' until it reaches one with the specified
382 * 'orientation'. Aborts when it comes across a floating_con.
385 Con *con_parent_with_orientation(Con *con, orientation_t orientation) {
386 DLOG("Searching for parent of Con %p with orientation %d\n", con, orientation);
387 Con *parent = con->parent;
388 if (parent->type == CT_FLOATING_CON)
390 while (con_orientation(parent) != orientation) {
391 DLOG("Need to go one level further up\n");
392 parent = parent->parent;
393 /* Abort when we reach a floating con, or an output con */
395 (parent->type == CT_FLOATING_CON ||
396 parent->type == CT_OUTPUT ||
397 (parent->parent && parent->parent->type == CT_OUTPUT)))
402 DLOG("Result: %p\n", parent);
407 * helper data structure for the breadth-first-search in
408 * con_get_fullscreen_con()
414 TAILQ_ENTRY(bfs_entry) entries;
418 * Returns the first fullscreen node below this node.
421 Con *con_get_fullscreen_con(Con *con, fullscreen_mode_t fullscreen_mode) {
422 Con *current, *child;
424 /* TODO: is breadth-first-search really appropriate? (check as soon as
425 * fullscreen levels and fullscreen for containers is implemented) */
426 TAILQ_HEAD(bfs_head, bfs_entry) bfs_head = TAILQ_HEAD_INITIALIZER(bfs_head);
427 struct bfs_entry *entry = smalloc(sizeof(struct bfs_entry));
429 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
431 while (!TAILQ_EMPTY(&bfs_head)) {
432 entry = TAILQ_FIRST(&bfs_head);
433 current = entry->con;
434 if (current != con && current->fullscreen_mode == fullscreen_mode) {
435 /* empty the queue */
436 while (!TAILQ_EMPTY(&bfs_head)) {
437 entry = TAILQ_FIRST(&bfs_head);
438 TAILQ_REMOVE(&bfs_head, entry, entries);
444 TAILQ_REMOVE(&bfs_head, entry, entries);
447 TAILQ_FOREACH(child, &(current->nodes_head), nodes) {
448 entry = smalloc(sizeof(struct bfs_entry));
450 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
453 TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
454 entry = smalloc(sizeof(struct bfs_entry));
456 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
464 * Returns true if the container is internal, such as __i3_scratch
467 bool con_is_internal(Con *con) {
468 return (con->name[0] == '_' && con->name[1] == '_');
472 * Returns true if the node is floating.
475 bool con_is_floating(Con *con) {
477 DLOG("checking if con %p is floating\n", con);
478 return (con->floating >= FLOATING_AUTO_ON);
482 * Returns true if the container is a docked container.
485 bool con_is_docked(Con *con) {
486 if (con->parent == NULL)
489 if (con->parent->type == CT_DOCKAREA)
492 return con_is_docked(con->parent);
496 * Checks if the given container is either floating or inside some floating
497 * container. It returns the FLOATING_CON container.
500 Con *con_inside_floating(Con *con) {
502 if (con->type == CT_FLOATING_CON)
505 if (con->floating >= FLOATING_AUTO_ON)
508 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
511 return con_inside_floating(con->parent);
515 * Checks if the given container is inside a focused container.
518 bool con_inside_focused(Con *con) {
523 return con_inside_focused(con->parent);
527 * Returns the container with the given client window ID or NULL if no such
531 Con *con_by_window_id(xcb_window_t window) {
533 TAILQ_FOREACH(con, &all_cons, all_cons)
534 if (con->window != NULL && con->window->id == window)
540 * Returns the container with the given frame ID or NULL if no such container
544 Con *con_by_frame_id(xcb_window_t frame) {
546 TAILQ_FOREACH(con, &all_cons, all_cons)
547 if (con->frame.id == frame)
553 * Returns the container with the given mark or NULL if no such container
557 Con *con_by_mark(const char *mark) {
559 TAILQ_FOREACH(con, &all_cons, all_cons) {
560 if (con_has_mark(con, mark))
568 * Returns true if and only if the given containers holds the mark.
571 bool con_has_mark(Con *con, const char *mark) {
573 TAILQ_FOREACH(current, &(con->marks_head), marks) {
574 if (strcmp(current->name, mark) == 0)
582 * Toggles the mark on a container.
583 * If the container already has this mark, the mark is removed.
584 * Otherwise, the mark is assigned to the container.
587 void con_mark_toggle(Con *con, const char *mark, mark_mode_t mode) {
589 DLOG("Toggling mark \"%s\" on con = %p.\n", mark, con);
591 if (con_has_mark(con, mark)) {
592 con_unmark(con, mark);
594 con_mark(con, mark, mode);
599 * Assigns a mark to the container.
602 void con_mark(Con *con, const char *mark, mark_mode_t mode) {
604 DLOG("Setting mark \"%s\" on con = %p.\n", mark, con);
606 con_unmark(NULL, mark);
607 if (mode == MM_REPLACE) {
608 DLOG("Removing all existing marks on con = %p.\n", con);
611 while (!TAILQ_EMPTY(&(con->marks_head))) {
612 current = TAILQ_FIRST(&(con->marks_head));
613 con_unmark(con, current->name);
617 mark_t *new = scalloc(1, sizeof(mark_t));
618 new->name = sstrdup(mark);
619 TAILQ_INSERT_TAIL(&(con->marks_head), new, marks);
621 con->mark_changed = true;
625 * Removes marks from containers.
626 * If con is NULL, all containers are considered.
627 * If name is NULL, this removes all existing marks.
628 * Otherwise, it will only remove the given mark (if it is present).
631 void con_unmark(Con *con, const char *name) {
634 DLOG("Unmarking all containers.\n");
635 TAILQ_FOREACH(current, &all_cons, all_cons) {
636 if (con != NULL && current != con)
639 if (TAILQ_EMPTY(&(current->marks_head)))
643 while (!TAILQ_EMPTY(&(current->marks_head))) {
644 mark = TAILQ_FIRST(&(current->marks_head));
646 TAILQ_REMOVE(&(current->marks_head), mark, marks);
650 current->mark_changed = true;
653 DLOG("Removing mark \"%s\".\n", name);
654 current = (con == NULL) ? con_by_mark(name) : con;
655 if (current == NULL) {
656 DLOG("No container found with this mark, so there is nothing to do.\n");
660 DLOG("Found mark on con = %p. Removing it now.\n", current);
661 current->mark_changed = true;
664 TAILQ_FOREACH(mark, &(current->marks_head), marks) {
665 if (strcmp(mark->name, name) != 0)
669 TAILQ_REMOVE(&(current->marks_head), mark, marks);
677 * Returns the first container below 'con' which wants to swallow this window
681 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
684 //DLOG("searching con for window %p starting at con %p\n", window, con);
685 //DLOG("class == %s\n", window->class_class);
687 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
688 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
689 if (!match_matches_window(match, window))
691 if (store_match != NULL)
692 *store_match = match;
695 Con *result = con_for_window(child, window, store_match);
700 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
701 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
702 if (!match_matches_window(match, window))
704 if (store_match != NULL)
705 *store_match = match;
708 Con *result = con_for_window(child, window, store_match);
717 * Returns the number of children of this container.
720 int con_num_children(Con *con) {
724 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
731 * Updates the percent attribute of the children of the given container. This
732 * function needs to be called when a window is added or removed from a
736 void con_fix_percent(Con *con) {
738 int children = con_num_children(con);
740 // calculate how much we have distributed and how many containers
741 // with a percentage set we have
743 int children_with_percent = 0;
744 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
745 if (child->percent > 0.0) {
746 total += child->percent;
747 ++children_with_percent;
751 // if there were children without a percentage set, set to a value that
752 // will make those children proportional to all others
753 if (children_with_percent != children) {
754 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
755 if (child->percent <= 0.0) {
756 if (children_with_percent == 0)
757 total += (child->percent = 1.0);
759 total += (child->percent = total / children_with_percent);
764 // if we got a zero, just distribute the space equally, otherwise
765 // distribute according to the proportions we got
767 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
768 child->percent = 1.0 / children;
769 } else if (total != 1.0) {
770 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
771 child->percent /= total;
776 * Toggles fullscreen mode for the given container. If there already is a
777 * fullscreen container on this workspace, fullscreen will be disabled and then
778 * enabled for the container the user wants to have in fullscreen mode.
781 void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
782 if (con->type == CT_WORKSPACE) {
783 DLOG("You cannot make a workspace fullscreen.\n");
787 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
789 if (con->fullscreen_mode == CF_NONE)
790 con_enable_fullscreen(con, fullscreen_mode);
792 con_disable_fullscreen(con);
796 * Sets the specified fullscreen mode for the given container, sends the
797 * “fullscreen_mode” event and changes the XCB fullscreen property of the
798 * container’s window, if any.
801 static void con_set_fullscreen_mode(Con *con, fullscreen_mode_t fullscreen_mode) {
802 con->fullscreen_mode = fullscreen_mode;
804 DLOG("mode now: %d\n", con->fullscreen_mode);
806 /* Send an ipc window "fullscreen_mode" event */
807 ipc_send_window_event("fullscreen_mode", con);
809 /* update _NET_WM_STATE if this container has a window */
810 /* TODO: when a window is assigned to a container which is already
811 * fullscreened, this state needs to be pushed to the client, too */
812 if (con->window == NULL)
815 if (con->fullscreen_mode != CF_NONE) {
816 DLOG("Setting _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
817 xcb_add_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
819 DLOG("Removing _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
820 xcb_remove_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
825 * Enables fullscreen mode for the given container, if necessary.
827 * If the container’s mode is already CF_OUTPUT or CF_GLOBAL, the container is
828 * kept fullscreen but its mode is set to CF_GLOBAL and CF_OUTPUT,
831 * Other fullscreen containers will be disabled first, if they hide the new
835 void con_enable_fullscreen(Con *con, fullscreen_mode_t fullscreen_mode) {
836 if (con->type == CT_WORKSPACE) {
837 DLOG("You cannot make a workspace fullscreen.\n");
841 assert(fullscreen_mode == CF_GLOBAL || fullscreen_mode == CF_OUTPUT);
843 if (fullscreen_mode == CF_GLOBAL)
844 DLOG("enabling global fullscreen for %p / %s\n", con, con->name);
846 DLOG("enabling fullscreen for %p / %s\n", con, con->name);
848 if (con->fullscreen_mode == fullscreen_mode) {
849 DLOG("fullscreen already enabled for %p / %s\n", con, con->name);
853 Con *con_ws = con_get_workspace(con);
855 /* Disable any fullscreen container that would conflict the new one. */
856 Con *fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
857 if (fullscreen == NULL)
858 fullscreen = con_get_fullscreen_con(con_ws, CF_OUTPUT);
859 if (fullscreen != NULL)
860 con_disable_fullscreen(fullscreen);
862 /* Set focus to new fullscreen container. Unless in global fullscreen mode
863 * and on another workspace restore focus afterwards.
864 * Switch to the container’s workspace if mode is global. */
865 Con *cur_ws = con_get_workspace(focused);
866 Con *old_focused = focused;
867 if (fullscreen_mode == CF_GLOBAL && cur_ws != con_ws)
868 workspace_show(con_ws);
870 if (fullscreen_mode != CF_GLOBAL && cur_ws != con_ws)
871 con_focus(old_focused);
873 con_set_fullscreen_mode(con, fullscreen_mode);
877 * Disables fullscreen mode for the given container regardless of the mode, if
881 void con_disable_fullscreen(Con *con) {
882 if (con->type == CT_WORKSPACE) {
883 DLOG("You cannot make a workspace fullscreen.\n");
887 DLOG("disabling fullscreen for %p / %s\n", con, con->name);
889 if (con->fullscreen_mode == CF_NONE) {
890 DLOG("fullscreen already disabled for %p / %s\n", con, con->name);
894 con_set_fullscreen_mode(con, CF_NONE);
897 static bool _con_move_to_con(Con *con, Con *target, bool behind_focused, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
898 Con *orig_target = target;
900 /* Prevent moving if this would violate the fullscreen focus restrictions. */
901 Con *target_ws = con_get_workspace(target);
902 if (!con_fullscreen_permits_focusing(target_ws)) {
903 LOG("Cannot move out of a fullscreen container.\n");
907 if (con_is_floating(con)) {
908 DLOG("Container is floating, using parent instead.\n");
912 Con *source_ws = con_get_workspace(con);
914 if (con->type == CT_WORKSPACE) {
915 /* Re-parent all of the old workspace's floating windows. */
917 while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
918 child = TAILQ_FIRST(&(source_ws->floating_head));
919 con_move_to_workspace(child, target_ws, true, true, false);
922 /* If there are no non-floating children, ignore the workspace. */
923 if (con_is_leaf(con))
926 con = workspace_encapsulate(con);
928 ELOG("Workspace failed to move its contents into a container!\n");
933 /* Save the urgency state so that we can restore it. */
934 bool urgent = con->urgent;
936 /* Save the current workspace. So we can call workspace_show() by the end
937 * of this function. */
938 Con *current_ws = con_get_workspace(focused);
940 Con *source_output = con_get_output(con),
941 *dest_output = con_get_output(target_ws);
943 /* 1: save the container which is going to be focused after the current
944 * container is moved away */
945 Con *focus_next = con_next_focused(con);
947 /* 2: we go up one level, but only when target is a normal container */
948 if (target->type != CT_WORKSPACE) {
949 DLOG("target originally = %p / %s / type %d\n", target, target->name, target->type);
950 target = target->parent;
953 /* 3: if the target container is floating, we get the workspace instead.
954 * Only tiling windows need to get inserted next to the current container.
956 Con *floatingcon = con_inside_floating(target);
957 if (floatingcon != NULL) {
958 DLOG("floatingcon, going up even further\n");
959 target = floatingcon->parent;
962 if (con->type == CT_FLOATING_CON) {
963 Con *ws = con_get_workspace(target);
964 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
968 if (source_output != dest_output) {
969 /* Take the relative coordinates of the current output, then add them
970 * to the coordinate space of the correct output */
971 if (fix_coordinates && con->type == CT_FLOATING_CON) {
972 floating_fix_coordinates(con, &(source_output->rect), &(dest_output->rect));
974 DLOG("Not fixing coordinates, fix_coordinates flag = %d\n", fix_coordinates);
976 /* If moving to a visible workspace, call show so it can be considered
977 * focused. Must do before attaching because workspace_show checks to see
978 * if focused container is in its area. */
979 if (!ignore_focus && workspace_is_visible(target_ws)) {
980 workspace_show(target_ws);
982 /* Don’t warp if told so (when dragging floating windows with the
983 * mouse for example) */
987 x_set_warp_to(&(con->rect));
991 /* If moving a fullscreen container and the destination already has a
992 * fullscreen window on it, un-fullscreen the target's fullscreen con. */
993 Con *fullscreen = con_get_fullscreen_con(target_ws, CF_OUTPUT);
994 if (con->fullscreen_mode != CF_NONE && fullscreen != NULL) {
995 con_toggle_fullscreen(fullscreen, CF_OUTPUT);
999 DLOG("Re-attaching container to %p / %s\n", target, target->name);
1000 /* 4: re-attach the con to the parent of this focused container */
1001 Con *parent = con->parent;
1003 _con_attach(con, target, behind_focused ? NULL : orig_target, !behind_focused);
1005 /* 5: fix the percentages */
1006 con_fix_percent(parent);
1008 con_fix_percent(target);
1010 /* 6: focus the con on the target workspace, but only within that
1011 * workspace, that is, don’t move focus away if the target workspace is
1013 * We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
1014 * we don’t focus when there is a fullscreen con on that workspace. We
1015 * also don't do it if the caller requested to ignore focus. */
1016 if (!ignore_focus && !con_is_internal(target_ws) && !fullscreen) {
1017 /* We need to save the focused workspace on the output in case the
1018 * new workspace is hidden and it's necessary to immediately switch
1019 * back to the originally-focused workspace. */
1020 Con *old_focus = TAILQ_FIRST(&(output_get_content(dest_output)->focus_head));
1021 con_focus(con_descend_focused(con));
1023 /* Restore focus if the output's focused workspace has changed. */
1024 if (con_get_workspace(focused) != old_focus)
1025 con_focus(old_focus);
1028 /* 7: when moving to another workspace, we leave the focus on the current
1029 * workspace. (see also #809) */
1031 /* Descend focus stack in case focus_next is a workspace which can
1032 * occur if we move to the same workspace. Also show current workspace
1033 * to ensure it is focused. */
1035 workspace_show(current_ws);
1037 /* Set focus only if con was on current workspace before moving.
1038 * Otherwise we would give focus to some window on different workspace. */
1039 if (!ignore_focus && source_ws == current_ws)
1040 con_focus(con_descend_focused(focus_next));
1042 /* 8. If anything within the container is associated with a startup sequence,
1043 * delete it so child windows won't be created on the old workspace. */
1044 struct Startup_Sequence *sequence;
1045 xcb_get_property_cookie_t cookie;
1046 xcb_get_property_reply_t *startup_id_reply;
1048 if (!con_is_leaf(con)) {
1050 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1054 cookie = xcb_get_property(conn, false, child->window->id,
1055 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1056 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1058 sequence = startup_sequence_get(child->window, startup_id_reply, true);
1059 if (sequence != NULL)
1060 startup_sequence_delete(sequence);
1065 cookie = xcb_get_property(conn, false, con->window->id,
1066 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1067 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1069 sequence = startup_sequence_get(con->window, startup_id_reply, true);
1070 if (sequence != NULL)
1071 startup_sequence_delete(sequence);
1074 /* 9. If the container was marked urgent, move the urgency hint. */
1076 workspace_update_urgent_flag(source_ws);
1077 con_set_urgency(con, true);
1080 CALL(parent, on_remove_child);
1082 ipc_send_window_event("move", con);
1083 ewmh_update_wm_desktop();
1088 * Moves the given container to the given mark.
1091 bool con_move_to_mark(Con *con, const char *mark) {
1092 Con *target = con_by_mark(mark);
1093 if (target == NULL) {
1094 DLOG("found no container with mark \"%s\"\n", mark);
1098 /* For floating target containers, we just send the window to the same workspace. */
1099 if (con_is_floating(target)) {
1100 DLOG("target container is floating, moving container to target's workspace.\n");
1101 con_move_to_workspace(con, con_get_workspace(target), true, false, false);
1105 if (con->type == CT_WORKSPACE) {
1106 DLOG("target container is a workspace, simply moving the container there.\n");
1107 con_move_to_workspace(con, target, true, false, false);
1111 /* For split containers, we use the currently focused container within it.
1112 * This allows setting marks on, e.g., tabbed containers which will move
1113 * con to a new tab behind the focused tab. */
1114 if (con_is_split(target)) {
1115 DLOG("target is a split container, descending to the currently focused child.\n");
1116 target = TAILQ_FIRST(&(target->focus_head));
1119 if (con == target || con == target->parent) {
1120 DLOG("cannot move the container to or inside itself, aborting.\n");
1124 return _con_move_to_con(con, target, false, true, false, false);
1128 * Moves the given container to the currently focused container on the given
1131 * The fix_coordinates flag will translate the current coordinates (offset from
1132 * the monitor position basically) to appropriate coordinates on the
1133 * destination workspace.
1134 * Not enabling this behaviour comes in handy when this function gets called by
1135 * floating_maybe_reassign_ws, which will only "move" a floating window when it
1136 * *already* changed its coordinates to a different output.
1138 * The dont_warp flag disables pointer warping and will be set when this
1139 * function is called while dragging a floating window.
1141 * If ignore_focus is set, the container will be moved without modifying focus
1144 * TODO: is there a better place for this function?
1147 void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
1148 assert(workspace->type == CT_WORKSPACE);
1150 Con *source_ws = con_get_workspace(con);
1151 if (workspace == source_ws) {
1152 DLOG("Not moving, already there\n");
1156 Con *target = con_descend_focused(workspace);
1157 _con_move_to_con(con, target, true, fix_coordinates, dont_warp, ignore_focus);
1161 * Returns the orientation of the given container (for stacked containers,
1162 * vertical orientation is used regardless of the actual orientation of the
1166 orientation_t con_orientation(Con *con) {
1167 switch (con->layout) {
1169 /* stacking containers behave like they are in vertical orientation */
1174 /* tabbed containers behave like they are in vertical orientation */
1179 DLOG("Someone called con_orientation() on a con with L_DEFAULT, this is a bug in the code.\n");
1185 DLOG("con_orientation() called on dockarea/output (%d) container %p\n", con->layout, con);
1190 DLOG("con_orientation() ran into default\n");
1196 * Returns the container which will be focused next when the given container
1197 * is not available anymore. Called in tree_close_internal and con_move_to_workspace
1198 * to properly restore focus.
1201 Con *con_next_focused(Con *con) {
1203 /* floating containers are attached to a workspace, so we focus either the
1204 * next floating container (if any) or the workspace itself. */
1205 if (con->type == CT_FLOATING_CON) {
1206 DLOG("selecting next for CT_FLOATING_CON\n");
1207 next = TAILQ_NEXT(con, floating_windows);
1208 DLOG("next = %p\n", next);
1210 next = TAILQ_PREV(con, floating_head, floating_windows);
1211 DLOG("using prev, next = %p\n", next);
1214 Con *ws = con_get_workspace(con);
1216 DLOG("no more floating containers for next = %p, restoring workspace focus\n", next);
1217 while (next != TAILQ_END(&(ws->focus_head)) && !TAILQ_EMPTY(&(next->focus_head))) {
1218 next = TAILQ_FIRST(&(next->focus_head));
1220 DLOG("skipping container itself, we want the next client\n");
1221 next = TAILQ_NEXT(next, focused);
1224 if (next == TAILQ_END(&(ws->focus_head))) {
1225 DLOG("Focus list empty, returning ws\n");
1229 /* Instead of returning the next CT_FLOATING_CON, we descend it to
1230 * get an actual window to focus. */
1231 next = con_descend_focused(next);
1236 /* dock clients cannot be focused, so we focus the workspace instead */
1237 if (con->parent->type == CT_DOCKAREA) {
1238 DLOG("selecting workspace for dock client\n");
1239 return con_descend_focused(output_get_content(con->parent->parent));
1242 /* if 'con' is not the first entry in the focus stack, use the first one as
1243 * it’s currently focused already */
1244 Con *first = TAILQ_FIRST(&(con->parent->focus_head));
1246 DLOG("Using first entry %p\n", first);
1249 /* try to focus the next container on the same level as this one or fall
1250 * back to its parent */
1251 if (!(next = TAILQ_NEXT(con, focused)))
1255 /* now go down the focus stack as far as
1256 * possible, excluding the current container */
1257 while (!TAILQ_EMPTY(&(next->focus_head)) &&
1258 TAILQ_FIRST(&(next->focus_head)) != con)
1259 next = TAILQ_FIRST(&(next->focus_head));
1265 * Get the next/previous container in the specified orientation. This may
1266 * travel up until it finds a container with suitable orientation.
1269 Con *con_get_next(Con *con, char way, orientation_t orientation) {
1270 DLOG("con_get_next(way=%c, orientation=%d)\n", way, orientation);
1271 /* 1: get the first parent with the same orientation */
1273 while (con_orientation(cur->parent) != orientation) {
1274 DLOG("need to go one level further up\n");
1275 if (cur->parent->type == CT_WORKSPACE) {
1276 LOG("that's a workspace, we can't go further up\n");
1282 /* 2: chose next (or previous) */
1285 next = TAILQ_NEXT(cur, nodes);
1286 /* if we are at the end of the list, we need to wrap */
1287 if (next == TAILQ_END(&(parent->nodes_head)))
1290 next = TAILQ_PREV(cur, nodes_head, nodes);
1291 /* if we are at the end of the list, we need to wrap */
1292 if (next == TAILQ_END(&(cur->nodes_head)))
1295 DLOG("next = %p\n", next);
1301 * Returns the focused con inside this client, descending the tree as far as
1302 * possible. This comes in handy when attaching a con to a workspace at the
1303 * currently focused position, for example.
1306 Con *con_descend_focused(Con *con) {
1308 while (next != focused && !TAILQ_EMPTY(&(next->focus_head)))
1309 next = TAILQ_FIRST(&(next->focus_head));
1314 * Returns the focused con inside this client, descending the tree as far as
1315 * possible. This comes in handy when attaching a con to a workspace at the
1316 * currently focused position, for example.
1318 * Works like con_descend_focused but considers only tiling cons.
1321 Con *con_descend_tiling_focused(Con *con) {
1325 if (next == focused)
1329 TAILQ_FOREACH(child, &(next->focus_head), focused) {
1330 if (child->type == CT_FLOATING_CON)
1336 } while (before != next && next != focused);
1341 * Returns the leftmost, rightmost, etc. container in sub-tree. For example, if
1342 * direction is D_LEFT, then we return the rightmost container and if direction
1343 * is D_RIGHT, we return the leftmost container. This is because if we are
1344 * moving D_LEFT, and thus want the rightmost container.
1347 Con *con_descend_direction(Con *con, direction_t direction) {
1350 int orientation = con_orientation(con);
1351 DLOG("con_descend_direction(%p, orientation %d, direction %d)\n", con, orientation, direction);
1352 if (direction == D_LEFT || direction == D_RIGHT) {
1353 if (orientation == HORIZ) {
1354 /* If the direction is horizontal, we can use either the first
1355 * (D_RIGHT) or the last con (D_LEFT) */
1356 if (direction == D_RIGHT)
1357 most = TAILQ_FIRST(&(con->nodes_head));
1359 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1360 } else if (orientation == VERT) {
1361 /* Wrong orientation. We use the last focused con. Within that con,
1362 * we recurse to chose the left/right con or at least the last
1364 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1365 if (current->type != CT_FLOATING_CON) {
1371 /* If the con has no orientation set, it’s not a split container
1372 * but a container with a client window, so stop recursing */
1377 if (direction == D_UP || direction == D_DOWN) {
1378 if (orientation == VERT) {
1379 /* If the direction is vertical, we can use either the first
1380 * (D_DOWN) or the last con (D_UP) */
1381 if (direction == D_UP)
1382 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1384 most = TAILQ_FIRST(&(con->nodes_head));
1385 } else if (orientation == HORIZ) {
1386 /* Wrong orientation. We use the last focused con. Within that con,
1387 * we recurse to chose the top/bottom con or at least the last
1389 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1390 if (current->type != CT_FLOATING_CON) {
1396 /* If the con has no orientation set, it’s not a split container
1397 * but a container with a client window, so stop recursing */
1404 return con_descend_direction(most, direction);
1408 * Returns a "relative" Rect which contains the amount of pixels that need to
1409 * be added to the original Rect to get the final position (obviously the
1410 * amount of pixels for normal, 1pixel and borderless are different).
1413 Rect con_border_style_rect(Con *con) {
1414 adjacent_t borders_to_hide = ADJ_NONE;
1415 int border_width = con->current_border_width;
1416 DLOG("The border width for con is set to: %d\n", con->current_border_width);
1418 if (con->current_border_width < 0) {
1419 if (con_is_floating(con)) {
1420 border_width = config.default_floating_border_width;
1422 border_width = config.default_border_width;
1425 DLOG("Effective border width is set to: %d\n", border_width);
1426 /* Shortcut to avoid calling con_adjacent_borders() on dock containers. */
1427 int border_style = con_border_style(con);
1428 if (border_style == BS_NONE)
1429 return (Rect){0, 0, 0, 0};
1430 if (border_style == BS_NORMAL) {
1431 result = (Rect){border_width, 0, -(2 * border_width), -(border_width)};
1433 result = (Rect){border_width, border_width, -(2 * border_width), -(2 * border_width)};
1436 borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
1437 if (borders_to_hide & ADJ_LEFT_SCREEN_EDGE) {
1438 result.x -= border_width;
1439 result.width += border_width;
1441 if (borders_to_hide & ADJ_RIGHT_SCREEN_EDGE) {
1442 result.width += border_width;
1444 if (borders_to_hide & ADJ_UPPER_SCREEN_EDGE && (border_style != BS_NORMAL)) {
1445 result.y -= border_width;
1446 result.height += border_width;
1448 if (borders_to_hide & ADJ_LOWER_SCREEN_EDGE) {
1449 result.height += border_width;
1455 * Returns adjacent borders of the window. We need this if hide_edge_borders is
1458 adjacent_t con_adjacent_borders(Con *con) {
1459 adjacent_t result = ADJ_NONE;
1460 /* Floating windows are never adjacent to any other window, so
1461 don’t hide their border(s). This prevents bug #998. */
1462 if (con_is_floating(con))
1465 Con *workspace = con_get_workspace(con);
1466 if (con->rect.x == workspace->rect.x)
1467 result |= ADJ_LEFT_SCREEN_EDGE;
1468 if (con->rect.x + con->rect.width == workspace->rect.x + workspace->rect.width)
1469 result |= ADJ_RIGHT_SCREEN_EDGE;
1470 if (con->rect.y == workspace->rect.y)
1471 result |= ADJ_UPPER_SCREEN_EDGE;
1472 if (con->rect.y + con->rect.height == workspace->rect.y + workspace->rect.height)
1473 result |= ADJ_LOWER_SCREEN_EDGE;
1478 * Use this function to get a container’s border style. This is important
1479 * because when inside a stack, the border style is always BS_NORMAL.
1480 * For tabbed mode, the same applies, with one exception: when the container is
1481 * borderless and the only element in the tabbed container, the border is not
1484 * For children of a CT_DOCKAREA, the border style is always none.
1487 int con_border_style(Con *con) {
1488 Con *fs = con_get_fullscreen_con(con->parent, CF_OUTPUT);
1490 DLOG("this one is fullscreen! overriding BS_NONE\n");
1494 if (con->parent->layout == L_STACKED)
1495 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1497 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
1498 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1500 if (con->parent->type == CT_DOCKAREA)
1503 return con->border_style;
1507 * Sets the given border style on con, correctly keeping the position/size of a
1511 void con_set_border_style(Con *con, int border_style, int border_width) {
1512 /* Handle the simple case: non-floating containerns */
1513 if (!con_is_floating(con)) {
1514 con->border_style = border_style;
1515 con->current_border_width = border_width;
1519 /* For floating containers, we want to keep the position/size of the
1520 * *window* itself. We first add the border pixels to con->rect to make
1521 * con->rect represent the absolute position of the window (same for
1522 * parent). Then, we change the border style and subtract the new border
1523 * pixels. For the parent, we do the same also for the decoration. */
1524 DLOG("This is a floating container\n");
1526 Con *parent = con->parent;
1527 Rect bsr = con_border_style_rect(con);
1528 int deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1530 con->rect = rect_add(con->rect, bsr);
1531 parent->rect = rect_add(parent->rect, bsr);
1532 parent->rect.y += deco_height;
1533 parent->rect.height -= deco_height;
1535 /* Change the border style, get new border/decoration values. */
1536 con->border_style = border_style;
1537 con->current_border_width = border_width;
1538 bsr = con_border_style_rect(con);
1539 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1541 con->rect = rect_sub(con->rect, bsr);
1542 parent->rect = rect_sub(parent->rect, bsr);
1543 parent->rect.y -= deco_height;
1544 parent->rect.height += deco_height;
1548 * This function changes the layout of a given container. Use it to handle
1549 * special cases like changing a whole workspace to stacked/tabbed (creates a
1550 * new split container before).
1553 void con_set_layout(Con *con, layout_t layout) {
1554 DLOG("con_set_layout(%p, %d), con->type = %d\n",
1555 con, layout, con->type);
1557 /* Users can focus workspaces, but not any higher in the hierarchy.
1558 * Focus on the workspace is a special case, since in every other case, the
1559 * user means "change the layout of the parent split container". */
1560 if (con->type != CT_WORKSPACE)
1563 /* We fill in last_split_layout when switching to a different layout
1564 * since there are many places in the code that don’t use
1565 * con_set_layout(). */
1566 if (con->layout == L_SPLITH || con->layout == L_SPLITV)
1567 con->last_split_layout = con->layout;
1569 /* When the container type is CT_WORKSPACE, the user wants to change the
1570 * whole workspace into stacked/tabbed mode. To do this and still allow
1571 * intuitive operations (like level-up and then opening a new window), we
1572 * need to create a new split container. */
1573 if (con->type == CT_WORKSPACE &&
1574 (layout == L_STACKED || layout == L_TABBED)) {
1575 if (con_num_children(con) == 0) {
1576 DLOG("Setting workspace_layout to %d\n", layout);
1577 con->workspace_layout = layout;
1579 DLOG("Creating new split container\n");
1580 /* 1: create a new split container */
1581 Con *new = con_new(NULL, NULL);
1584 /* 2: Set the requested layout on the split container and mark it as
1586 new->layout = layout;
1587 new->last_split_layout = con->last_split_layout;
1589 /* Save the container that was focused before we move containers
1590 * around, but only if the container is visible (otherwise focus
1591 * will be restored properly automatically when switching). */
1592 Con *old_focused = TAILQ_FIRST(&(con->focus_head));
1593 if (old_focused == TAILQ_END(&(con->focus_head)))
1595 if (old_focused != NULL &&
1596 !workspace_is_visible(con_get_workspace(old_focused)))
1599 /* 3: move the existing cons of this workspace below the new con */
1600 DLOG("Moving cons\n");
1602 while (!TAILQ_EMPTY(&(con->nodes_head))) {
1603 child = TAILQ_FIRST(&(con->nodes_head));
1605 con_attach(child, new, true);
1608 /* 4: attach the new split container to the workspace */
1609 DLOG("Attaching new split to ws\n");
1610 con_attach(new, con, false);
1613 con_focus(old_focused);
1615 tree_flatten(croot);
1617 con_force_split_parents_redraw(con);
1621 if (layout == L_DEFAULT) {
1622 /* Special case: the layout formerly known as "default" (in combination
1623 * with an orientation). Since we switched to splith/splitv layouts,
1624 * using the "default" layout (which "only" should happen when using
1625 * legacy configs) is using the last split layout (either splith or
1626 * splitv) in order to still do the same thing. */
1627 con->layout = con->last_split_layout;
1628 /* In case last_split_layout was not initialized… */
1629 if (con->layout == L_DEFAULT)
1630 con->layout = L_SPLITH;
1632 con->layout = layout;
1634 con_force_split_parents_redraw(con);
1638 * This function toggles the layout of a given container. toggle_mode can be
1639 * either 'default' (toggle only between stacked/tabbed/last_split_layout),
1640 * 'split' (toggle only between splitv/splith) or 'all' (toggle between all
1644 void con_toggle_layout(Con *con, const char *toggle_mode) {
1646 /* Users can focus workspaces, but not any higher in the hierarchy.
1647 * Focus on the workspace is a special case, since in every other case, the
1648 * user means "change the layout of the parent split container". */
1649 if (con->type != CT_WORKSPACE)
1650 parent = con->parent;
1651 DLOG("con_toggle_layout(%p, %s), parent = %p\n", con, toggle_mode, parent);
1653 if (strcmp(toggle_mode, "split") == 0) {
1654 /* Toggle between splits. When the current layout is not a split
1655 * layout, we just switch back to last_split_layout. Otherwise, we
1656 * change to the opposite split layout. */
1657 if (parent->layout != L_SPLITH && parent->layout != L_SPLITV)
1658 con_set_layout(con, parent->last_split_layout);
1660 if (parent->layout == L_SPLITH)
1661 con_set_layout(con, L_SPLITV);
1663 con_set_layout(con, L_SPLITH);
1666 if (parent->layout == L_STACKED)
1667 con_set_layout(con, L_TABBED);
1668 else if (parent->layout == L_TABBED) {
1669 if (strcmp(toggle_mode, "all") == 0)
1670 con_set_layout(con, L_SPLITH);
1672 con_set_layout(con, parent->last_split_layout);
1673 } else if (parent->layout == L_SPLITH || parent->layout == L_SPLITV) {
1674 if (strcmp(toggle_mode, "all") == 0) {
1675 /* When toggling through all modes, we toggle between
1676 * splith/splitv, whereas normally we just directly jump to
1678 if (parent->layout == L_SPLITH)
1679 con_set_layout(con, L_SPLITV);
1681 con_set_layout(con, L_STACKED);
1683 con_set_layout(con, L_STACKED);
1690 * Callback which will be called when removing a child from the given con.
1691 * Kills the container if it is empty and replaces it with the child if there
1692 * is exactly one child.
1695 static void con_on_remove_child(Con *con) {
1696 DLOG("on_remove_child\n");
1698 /* Every container 'above' (in the hierarchy) the workspace content should
1699 * not be closed when the last child was removed */
1700 if (con->type == CT_OUTPUT ||
1701 con->type == CT_ROOT ||
1702 con->type == CT_DOCKAREA ||
1703 (con->parent != NULL && con->parent->type == CT_OUTPUT)) {
1704 DLOG("not handling, type = %d, name = %s\n", con->type, con->name);
1708 /* For workspaces, close them only if they're not visible anymore */
1709 if (con->type == CT_WORKSPACE) {
1710 if (TAILQ_EMPTY(&(con->focus_head)) && !workspace_is_visible(con)) {
1711 LOG("Closing old workspace (%p / %s), it is empty\n", con, con->name);
1712 yajl_gen gen = ipc_marshal_workspace_event("empty", con, NULL);
1713 tree_close_internal(con, DONT_KILL_WINDOW, false, false);
1715 const unsigned char *payload;
1717 y(get_buf, &payload, &length);
1718 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, (const char *)payload);
1725 con_force_split_parents_redraw(con);
1726 con->urgent = con_has_urgent_child(con);
1727 con_update_parents_urgency(con);
1729 /* TODO: check if this container would swallow any other client and
1730 * don’t close it automatically. */
1731 int children = con_num_children(con);
1732 if (children == 0) {
1733 DLOG("Container empty, closing\n");
1734 tree_close_internal(con, DONT_KILL_WINDOW, false, false);
1740 * Determines the minimum size of the given con by looking at its children (for
1741 * split/stacked/tabbed cons). Will be called when resizing floating cons
1744 Rect con_minimum_size(Con *con) {
1745 DLOG("Determining minimum size for con %p\n", con);
1747 if (con_is_leaf(con)) {
1748 DLOG("leaf node, returning 75x50\n");
1749 return (Rect){0, 0, 75, 50};
1752 if (con->type == CT_FLOATING_CON) {
1753 DLOG("floating con\n");
1754 Con *child = TAILQ_FIRST(&(con->nodes_head));
1755 return con_minimum_size(child);
1758 if (con->layout == L_STACKED || con->layout == L_TABBED) {
1759 uint32_t max_width = 0, max_height = 0, deco_height = 0;
1761 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1762 Rect min = con_minimum_size(child);
1763 deco_height += child->deco_rect.height;
1764 max_width = max(max_width, min.width);
1765 max_height = max(max_height, min.height);
1767 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
1768 max_width, max_height, deco_height);
1769 return (Rect){0, 0, max_width, max_height + deco_height};
1772 /* For horizontal/vertical split containers we sum up the width (h-split)
1773 * or height (v-split) and use the maximum of the height (h-split) or width
1774 * (v-split) as minimum size. */
1775 if (con_is_split(con)) {
1776 uint32_t width = 0, height = 0;
1778 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1779 Rect min = con_minimum_size(child);
1780 if (con->layout == L_SPLITH) {
1782 height = max(height, min.height);
1784 height += min.height;
1785 width = max(width, min.width);
1788 DLOG("split container, returning width = %d x height = %d\n", width, height);
1789 return (Rect){0, 0, width, height};
1792 ELOG("Unhandled case, type = %d, layout = %d, split = %d\n",
1793 con->type, con->layout, con_is_split(con));
1798 * Returns true if changing the focus to con would be allowed considering
1799 * the fullscreen focus constraints. Specifically, if a fullscreen container or
1800 * any of its descendants is focused, this function returns true if and only if
1801 * focusing con would mean that focus would still be visible on screen, i.e.,
1802 * the newly focused container would not be obscured by a fullscreen container.
1804 * In the simplest case, if a fullscreen container or any of its descendants is
1805 * fullscreen, this functions returns true if con is the fullscreen container
1806 * itself or any of its descendants, as this means focus wouldn't escape the
1807 * boundaries of the fullscreen container.
1809 * In case the fullscreen container is of type CF_OUTPUT, this function returns
1810 * true if con is on a different workspace, as focus wouldn't be obscured by
1811 * the fullscreen container that is constrained to a different workspace.
1813 * Note that this same logic can be applied to moving containers. If a
1814 * container can be focused under the fullscreen focus constraints, it can also
1815 * become a parent or sibling to the currently focused container.
1818 bool con_fullscreen_permits_focusing(Con *con) {
1819 /* No focus, no problem. */
1823 /* Find the first fullscreen ascendent. */
1825 while (fs && fs->fullscreen_mode == CF_NONE)
1828 /* fs must be non-NULL since the workspace con doesn’t have CF_NONE and
1829 * there always has to be a workspace con in the hierarchy. */
1831 /* The most common case is we hit the workspace level. In this
1832 * situation, changing focus is also harmless. */
1833 assert(fs->fullscreen_mode != CF_NONE);
1834 if (fs->type == CT_WORKSPACE)
1837 /* Allow it if the container itself is the fullscreen container. */
1841 /* If fullscreen is per-output, the focus being in a different workspace is
1842 * sufficient to guarantee that change won't leave fullscreen in bad shape. */
1843 if (fs->fullscreen_mode == CF_OUTPUT &&
1844 con_get_workspace(con) != con_get_workspace(fs)) {
1848 /* Allow it only if the container to be focused is contained within the
1849 * current fullscreen container. */
1851 if (con->parent == fs)
1856 /* Focusing con would hide it behind a fullscreen window, disallow it. */
1862 * Checks if the given container has an urgent child.
1865 bool con_has_urgent_child(Con *con) {
1868 if (con_is_leaf(con))
1871 /* We are not interested in floating windows since they can only be
1872 * attached to a workspace → nodes_head instead of focus_head */
1873 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1874 if (con_has_urgent_child(child))
1882 * Make all parent containers urgent if con is urgent or clear the urgent flag
1883 * of all parent containers if there are no more urgent children left.
1886 void con_update_parents_urgency(Con *con) {
1887 Con *parent = con->parent;
1889 bool new_urgency_value = con->urgent;
1890 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
1891 if (new_urgency_value) {
1892 parent->urgent = true;
1894 /* We can only reset the urgency when the parent
1895 * has no other urgent children */
1896 if (!con_has_urgent_child(parent))
1897 parent->urgent = false;
1899 parent = parent->parent;
1904 * Set urgency flag to the container, all the parent containers and the workspace.
1907 void con_set_urgency(Con *con, bool urgent) {
1908 if (urgent && focused == con) {
1909 DLOG("Ignoring urgency flag for current client\n");
1913 const bool old_urgent = con->urgent;
1915 if (con->urgency_timer == NULL) {
1916 con->urgent = urgent;
1918 DLOG("Discarding urgency WM_HINT because timer is running\n");
1923 gettimeofday(&con->window->urgent, NULL);
1925 con->window->urgent.tv_sec = 0;
1926 con->window->urgent.tv_usec = 0;
1930 con_update_parents_urgency(con);
1933 /* Set the urgency flag on the workspace, if a workspace could be found
1934 * (for dock clients, that is not the case). */
1935 if ((ws = con_get_workspace(con)) != NULL)
1936 workspace_update_urgent_flag(ws);
1938 if (con->urgent != old_urgent) {
1939 LOG("Urgency flag changed to %d\n", con->urgent);
1940 ipc_send_window_event("urgent", con);
1945 * Create a string representing the subtree under con.
1948 char *con_get_tree_representation(Con *con) {
1949 /* this code works as follows:
1950 * 1) create a string with the layout type (D/V/H/T/S) and an opening bracket
1951 * 2) append the tree representation of the children to the string
1952 * 3) add closing bracket
1954 * The recursion ends when we hit a leaf, in which case we return the
1955 * class_instance of the contained window.
1958 /* end of recursion */
1959 if (con_is_leaf(con)) {
1961 return sstrdup("nowin");
1963 if (!con->window->class_instance)
1964 return sstrdup("noinstance");
1966 return sstrdup(con->window->class_instance);
1970 /* 1) add the Layout type to buf */
1971 if (con->layout == L_DEFAULT)
1972 buf = sstrdup("D[");
1973 else if (con->layout == L_SPLITV)
1974 buf = sstrdup("V[");
1975 else if (con->layout == L_SPLITH)
1976 buf = sstrdup("H[");
1977 else if (con->layout == L_TABBED)
1978 buf = sstrdup("T[");
1979 else if (con->layout == L_STACKED)
1980 buf = sstrdup("S[");
1982 ELOG("BUG: Code not updated to account for new layout type\n");
1986 /* 2) append representation of children */
1988 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1989 char *child_txt = con_get_tree_representation(child);
1992 sasprintf(&tmp_buf, "%s%s%s", buf,
1993 (TAILQ_FIRST(&(con->nodes_head)) == child ? "" : " "), child_txt);
1999 /* 3) close the brackets */
2001 sasprintf(&complete_buf, "%s]", buf);
2004 return complete_buf;
2008 * Returns the container's title considering the current title format.
2011 i3String *con_parse_title_format(Con *con) {
2012 assert(con->title_format != NULL);
2014 i3Window *win = con->window;
2016 /* We need to ensure that we only escape the window title if pango
2017 * is used by the current font. */
2018 const bool pango_markup = font_is_pango();
2024 title = pango_escape_markup(con_get_tree_representation(con));
2025 class = sstrdup("i3-frame");
2026 instance = sstrdup("i3-frame");
2028 title = pango_escape_markup(sstrdup((win->name == NULL) ? "" : i3string_as_utf8(win->name)));
2029 class = pango_escape_markup(sstrdup((win->class_class == NULL) ? "" : win->class_class));
2030 instance = pango_escape_markup(sstrdup((win->class_instance == NULL) ? "" : win->class_instance));
2033 placeholder_t placeholders[] = {
2034 {.name = "%title", .value = title},
2035 {.name = "%class", .value = class},
2036 {.name = "%instance", .value = instance}};
2037 const size_t num = sizeof(placeholders) / sizeof(placeholder_t);
2039 char *formatted_str = format_placeholders(con->title_format, &placeholders[0], num);
2040 i3String *formatted = i3string_from_utf8(formatted_str);
2041 i3string_set_markup(formatted, pango_markup);
2042 FREE(formatted_str);
2044 for (size_t i = 0; i < num; i++) {
2045 FREE(placeholders[i].value);