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));
60 con_attach(new, parent, false);
65 /* A wrapper for con_new_skeleton, to retain the old con_new behaviour
68 Con *con_new(Con *parent, i3Window *window) {
69 Con *new = con_new_skeleton(parent, window);
70 x_con_init(new, new->depth);
74 static void _con_attach(Con *con, Con *parent, Con *previous, bool ignore_focus) {
77 Con *current = previous;
78 struct nodes_head *nodes_head = &(parent->nodes_head);
79 struct focus_head *focus_head = &(parent->focus_head);
81 /* Workspaces are handled differently: they need to be inserted at the
83 if (con->type == CT_WORKSPACE) {
84 DLOG("it's a workspace. num = %d\n", con->num);
85 if (con->num == -1 || TAILQ_EMPTY(nodes_head)) {
86 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
88 current = TAILQ_FIRST(nodes_head);
89 if (con->num < current->num) {
90 /* we need to insert the container at the beginning */
91 TAILQ_INSERT_HEAD(nodes_head, con, nodes);
93 while (current->num != -1 && con->num > current->num) {
94 current = TAILQ_NEXT(current, nodes);
95 if (current == TAILQ_END(nodes_head)) {
100 /* we need to insert con after current, if current is not NULL */
102 TAILQ_INSERT_BEFORE(current, con, nodes);
104 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
107 goto add_to_focus_head;
110 if (con->type == CT_FLOATING_CON) {
111 DLOG("Inserting into floating containers\n");
112 TAILQ_INSERT_TAIL(&(parent->floating_head), con, floating_windows);
115 /* Get the first tiling container in focus stack */
116 TAILQ_FOREACH(loop, &(parent->focus_head), focused) {
117 if (loop->type == CT_FLOATING_CON)
124 /* When the container is not a split container (but contains a window)
125 * and is attached to a workspace, we check if the user configured a
126 * workspace_layout. This is done in workspace_attach_to, which will
127 * provide us with the container to which we should attach (either the
128 * workspace or a new split container with the configured
131 if (con->window != NULL &&
132 parent->type == CT_WORKSPACE &&
133 parent->workspace_layout != L_DEFAULT) {
134 DLOG("Parent is a workspace. Applying default layout...\n");
135 Con *target = workspace_attach_to(parent);
137 /* Attach the original con to this new split con instead */
138 nodes_head = &(target->nodes_head);
139 focus_head = &(target->focus_head);
140 con->parent = target;
146 /* Insert the container after the tiling container, if found.
147 * When adding to a CT_OUTPUT, just append one after another. */
148 if (current && parent->type != CT_OUTPUT) {
149 DLOG("Inserting con = %p after con %p\n", con, current);
150 TAILQ_INSERT_AFTER(nodes_head, current, con, nodes);
152 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
156 /* We insert to the TAIL because con_focus() will correct this.
157 * This way, we have the option to insert Cons without having
159 TAILQ_INSERT_TAIL(focus_head, con, focused);
160 con_force_split_parents_redraw(con);
164 * Attaches the given container to the given parent. This happens when moving
165 * a container or when inserting a new container at a specific place in the
168 * ignore_focus is to just insert the Con at the end (useful when creating a
169 * new split container *around* some containers, that is, detaching and
170 * attaching them in order without wanting to mess with the focus in between).
173 void con_attach(Con *con, Con *parent, bool ignore_focus) {
174 _con_attach(con, parent, NULL, ignore_focus);
178 * Detaches the given container from its current parent
181 void con_detach(Con *con) {
182 con_force_split_parents_redraw(con);
183 if (con->type == CT_FLOATING_CON) {
184 TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
185 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
187 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
188 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
193 * Sets input focus to the given container. Will be updated in X11 in the next
194 * run of x_push_changes().
197 void con_focus(Con *con) {
199 DLOG("con_focus = %p\n", con);
201 /* 1: set focused-pointer to the new con */
202 /* 2: exchange the position of the container in focus stack of the parent all the way up */
203 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
204 TAILQ_INSERT_HEAD(&(con->parent->focus_head), con, focused);
205 if (con->parent->parent != NULL)
206 con_focus(con->parent);
209 /* We can't blindly reset non-leaf containers since they might have
210 * other urgent children. Therefore we only reset leafs and propagate
211 * the changes upwards via con_update_parents_urgency() which does proper
212 * checks before resetting the urgency.
214 if (con->urgent && con_is_leaf(con)) {
215 con_set_urgency(con, false);
216 con_update_parents_urgency(con);
217 workspace_update_urgent_flag(con_get_workspace(con));
218 ipc_send_window_event("urgent", con);
223 * Returns true when this node is a leaf node (has no children)
226 bool con_is_leaf(Con *con) {
227 return TAILQ_EMPTY(&(con->nodes_head));
231 * Returns true when this con is a leaf node with a managed X11 window (e.g.,
232 * excluding dock containers)
234 bool con_has_managed_window(Con *con) {
235 return (con != NULL && con->window != NULL && con->window->id != XCB_WINDOW_NONE && con_get_workspace(con) != NULL);
239 * Returns true if this node has regular or floating children.
242 bool con_has_children(Con *con) {
243 return (!con_is_leaf(con) || !TAILQ_EMPTY(&(con->floating_head)));
247 * Returns true if a container should be considered split.
250 bool con_is_split(Con *con) {
251 if (con_is_leaf(con))
254 switch (con->layout) {
265 * This will only return true for containers which have some parent with
266 * a tabbed / stacked parent of which they are not the currently focused child.
269 bool con_is_hidden(Con *con) {
272 /* ascend to the workspace level and memorize the highest-up container
273 * which is stacked or tabbed. */
274 while (current != NULL && current->type != CT_WORKSPACE) {
275 Con *parent = current->parent;
276 if (parent != NULL && (parent->layout == L_TABBED || parent->layout == L_STACKED)) {
277 if (TAILQ_FIRST(&(parent->focus_head)) != current)
288 * Returns whether the container or any of its children is sticky.
291 bool con_is_sticky(Con *con) {
296 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
297 if (con_is_sticky(child))
305 * Returns true if this node accepts a window (if the node swallows windows,
306 * it might already have swallowed enough and cannot hold any more).
309 bool con_accepts_window(Con *con) {
310 /* 1: workspaces never accept direct windows */
311 if (con->type == CT_WORKSPACE)
314 if (con_is_split(con)) {
315 DLOG("container %p does not accept windows, it is a split container.\n", con);
319 /* TODO: if this is a swallowing container, we need to check its max_clients */
320 return (con->window == NULL);
324 * Gets the output container (first container with CT_OUTPUT in hierarchy) this
328 Con *con_get_output(Con *con) {
330 while (result != NULL && result->type != CT_OUTPUT)
331 result = result->parent;
332 /* We must be able to get an output because focus can never be set higher
333 * in the tree (root node cannot be focused). */
334 assert(result != NULL);
339 * Gets the workspace container this node is on.
342 Con *con_get_workspace(Con *con) {
344 while (result != NULL && result->type != CT_WORKSPACE)
345 result = result->parent;
350 * Searches parenst of the given 'con' until it reaches one with the specified
351 * 'orientation'. Aborts when it comes across a floating_con.
354 Con *con_parent_with_orientation(Con *con, orientation_t orientation) {
355 DLOG("Searching for parent of Con %p with orientation %d\n", con, orientation);
356 Con *parent = con->parent;
357 if (parent->type == CT_FLOATING_CON)
359 while (con_orientation(parent) != orientation) {
360 DLOG("Need to go one level further up\n");
361 parent = parent->parent;
362 /* Abort when we reach a floating con, or an output con */
364 (parent->type == CT_FLOATING_CON ||
365 parent->type == CT_OUTPUT ||
366 (parent->parent && parent->parent->type == CT_OUTPUT)))
371 DLOG("Result: %p\n", parent);
376 * helper data structure for the breadth-first-search in
377 * con_get_fullscreen_con()
383 TAILQ_ENTRY(bfs_entry) entries;
387 * Returns the first fullscreen node below this node.
390 Con *con_get_fullscreen_con(Con *con, fullscreen_mode_t fullscreen_mode) {
391 Con *current, *child;
393 /* TODO: is breadth-first-search really appropriate? (check as soon as
394 * fullscreen levels and fullscreen for containers is implemented) */
395 TAILQ_HEAD(bfs_head, bfs_entry) bfs_head = TAILQ_HEAD_INITIALIZER(bfs_head);
396 struct bfs_entry *entry = smalloc(sizeof(struct bfs_entry));
398 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
400 while (!TAILQ_EMPTY(&bfs_head)) {
401 entry = TAILQ_FIRST(&bfs_head);
402 current = entry->con;
403 if (current != con && current->fullscreen_mode == fullscreen_mode) {
404 /* empty the queue */
405 while (!TAILQ_EMPTY(&bfs_head)) {
406 entry = TAILQ_FIRST(&bfs_head);
407 TAILQ_REMOVE(&bfs_head, entry, entries);
413 TAILQ_REMOVE(&bfs_head, entry, entries);
416 TAILQ_FOREACH(child, &(current->nodes_head), nodes) {
417 entry = smalloc(sizeof(struct bfs_entry));
419 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
422 TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
423 entry = smalloc(sizeof(struct bfs_entry));
425 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
433 * Returns true if the container is internal, such as __i3_scratch
436 bool con_is_internal(Con *con) {
437 return (con->name[0] == '_' && con->name[1] == '_');
441 * Returns true if the node is floating.
444 bool con_is_floating(Con *con) {
446 DLOG("checking if con %p is floating\n", con);
447 return (con->floating >= FLOATING_AUTO_ON);
451 * Returns true if the container is a docked container.
454 bool con_is_docked(Con *con) {
455 if (con->parent == NULL)
458 if (con->parent->type == CT_DOCKAREA)
461 return con_is_docked(con->parent);
465 * Checks if the given container is either floating or inside some floating
466 * container. It returns the FLOATING_CON container.
469 Con *con_inside_floating(Con *con) {
471 if (con->type == CT_FLOATING_CON)
474 if (con->floating >= FLOATING_AUTO_ON)
477 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
480 return con_inside_floating(con->parent);
484 * Checks if the given container is inside a focused container.
487 bool con_inside_focused(Con *con) {
492 return con_inside_focused(con->parent);
496 * Returns the container with the given client window ID or NULL if no such
500 Con *con_by_window_id(xcb_window_t window) {
502 TAILQ_FOREACH(con, &all_cons, all_cons)
503 if (con->window != NULL && con->window->id == window)
509 * Returns the container with the given frame ID or NULL if no such container
513 Con *con_by_frame_id(xcb_window_t frame) {
515 TAILQ_FOREACH(con, &all_cons, all_cons)
516 if (con->frame == frame)
522 * Returns the container with the given mark or NULL if no such container
526 Con *con_by_mark(const char *mark) {
528 TAILQ_FOREACH(con, &all_cons, all_cons) {
529 if (con->mark != NULL && strcmp(con->mark, mark) == 0)
537 * Toggles the mark on a container.
538 * If the container already has this mark, the mark is removed.
539 * Otherwise, the mark is assigned to the container.
542 void con_mark_toggle(Con *con, const char *mark) {
544 DLOG("Toggling mark \"%s\" on con = %p.\n", mark, con);
546 if (con->mark != NULL && strcmp(con->mark, mark) == 0) {
554 * Assigns a mark to the container.
557 void con_mark(Con *con, const char *mark) {
559 DLOG("Setting mark \"%s\" on con = %p.\n", mark, con);
562 con->mark = sstrdup(mark);
563 con->mark_changed = true;
565 DLOG("Clearing the mark from all other windows.\n");
567 TAILQ_FOREACH(other, &all_cons, all_cons) {
568 /* Skip the window we actually handled since we took care of it already. */
572 if (other->mark != NULL && strcmp(other->mark, mark) == 0) {
574 other->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 (con->mark == NULL)
593 con->mark_changed = true;
596 DLOG("Removing mark \"%s\".\n", mark);
597 con = con_by_mark(mark);
599 DLOG("No container found with this mark, so there is nothing to do.\n");
603 DLOG("Found mark on con = %p. Removing it now.\n", con);
605 con->mark_changed = true;
610 * Returns the first container below 'con' which wants to swallow this window
614 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
617 //DLOG("searching con for window %p starting at con %p\n", window, con);
618 //DLOG("class == %s\n", window->class_class);
620 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
621 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
622 if (!match_matches_window(match, window))
624 if (store_match != NULL)
625 *store_match = match;
628 Con *result = con_for_window(child, window, store_match);
633 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
634 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
635 if (!match_matches_window(match, window))
637 if (store_match != NULL)
638 *store_match = match;
641 Con *result = con_for_window(child, window, store_match);
650 * Returns the number of children of this container.
653 int con_num_children(Con *con) {
657 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
664 * Updates the percent attribute of the children of the given container. This
665 * function needs to be called when a window is added or removed from a
669 void con_fix_percent(Con *con) {
671 int children = con_num_children(con);
673 // calculate how much we have distributed and how many containers
674 // with a percentage set we have
676 int children_with_percent = 0;
677 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
678 if (child->percent > 0.0) {
679 total += child->percent;
680 ++children_with_percent;
684 // if there were children without a percentage set, set to a value that
685 // will make those children proportional to all others
686 if (children_with_percent != children) {
687 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
688 if (child->percent <= 0.0) {
689 if (children_with_percent == 0)
690 total += (child->percent = 1.0);
692 total += (child->percent = total / children_with_percent);
697 // if we got a zero, just distribute the space equally, otherwise
698 // distribute according to the proportions we got
700 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
701 child->percent = 1.0 / children;
702 } else if (total != 1.0) {
703 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
704 child->percent /= total;
709 * Toggles fullscreen mode for the given container. If there already is a
710 * fullscreen container on this workspace, fullscreen will be disabled and then
711 * enabled for the container the user wants to have in fullscreen mode.
714 void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
715 if (con->type == CT_WORKSPACE) {
716 DLOG("You cannot make a workspace fullscreen.\n");
720 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
722 if (con->fullscreen_mode == CF_NONE)
723 con_enable_fullscreen(con, fullscreen_mode);
725 con_disable_fullscreen(con);
729 * Sets the specified fullscreen mode for the given container, sends the
730 * “fullscreen_mode” event and changes the XCB fullscreen property of the
731 * container’s window, if any.
734 static void con_set_fullscreen_mode(Con *con, fullscreen_mode_t fullscreen_mode) {
735 con->fullscreen_mode = fullscreen_mode;
737 DLOG("mode now: %d\n", con->fullscreen_mode);
739 /* Send an ipc window "fullscreen_mode" event */
740 ipc_send_window_event("fullscreen_mode", con);
742 /* update _NET_WM_STATE if this container has a window */
743 /* TODO: when a window is assigned to a container which is already
744 * fullscreened, this state needs to be pushed to the client, too */
745 if (con->window == NULL)
748 if (con->fullscreen_mode != CF_NONE) {
749 DLOG("Setting _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
750 xcb_add_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
752 DLOG("Removing _NET_WM_STATE_FULLSCREEN for con = %p / window = %d.\n", con, con->window->id);
753 xcb_remove_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_FULLSCREEN);
758 * Enables fullscreen mode for the given container, if necessary.
760 * If the container’s mode is already CF_OUTPUT or CF_GLOBAL, the container is
761 * kept fullscreen but its mode is set to CF_GLOBAL and CF_OUTPUT,
764 * Other fullscreen containers will be disabled first, if they hide the new
768 void con_enable_fullscreen(Con *con, fullscreen_mode_t fullscreen_mode) {
769 if (con->type == CT_WORKSPACE) {
770 DLOG("You cannot make a workspace fullscreen.\n");
774 assert(fullscreen_mode == CF_GLOBAL || fullscreen_mode == CF_OUTPUT);
776 if (fullscreen_mode == CF_GLOBAL)
777 DLOG("enabling global fullscreen for %p / %s\n", con, con->name);
779 DLOG("enabling fullscreen for %p / %s\n", con, con->name);
781 if (con->fullscreen_mode == fullscreen_mode) {
782 DLOG("fullscreen already enabled for %p / %s\n", con, con->name);
786 Con *con_ws = con_get_workspace(con);
788 /* Disable any fullscreen container that would conflict the new one. */
789 Con *fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
790 if (fullscreen == NULL)
791 fullscreen = con_get_fullscreen_con(con_ws, CF_OUTPUT);
792 if (fullscreen != NULL)
793 con_disable_fullscreen(fullscreen);
795 /* Set focus to new fullscreen container. Unless in global fullscreen mode
796 * and on another workspace restore focus afterwards.
797 * Switch to the container’s workspace if mode is global. */
798 Con *cur_ws = con_get_workspace(focused);
799 Con *old_focused = focused;
800 if (fullscreen_mode == CF_GLOBAL && cur_ws != con_ws)
801 workspace_show(con_ws);
803 if (fullscreen_mode != CF_GLOBAL && cur_ws != con_ws)
804 con_focus(old_focused);
806 con_set_fullscreen_mode(con, fullscreen_mode);
810 * Disables fullscreen mode for the given container regardless of the mode, if
814 void con_disable_fullscreen(Con *con) {
815 if (con->type == CT_WORKSPACE) {
816 DLOG("You cannot make a workspace fullscreen.\n");
820 DLOG("disabling fullscreen for %p / %s\n", con, con->name);
822 if (con->fullscreen_mode == CF_NONE) {
823 DLOG("fullscreen already disabled for %p / %s\n", con, con->name);
827 con_set_fullscreen_mode(con, CF_NONE);
830 static bool _con_move_to_con(Con *con, Con *target, bool behind_focused, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
831 Con *orig_target = target;
833 /* Prevent moving if this would violate the fullscreen focus restrictions. */
834 Con *target_ws = con_get_workspace(target);
835 if (!con_fullscreen_permits_focusing(target_ws)) {
836 LOG("Cannot move out of a fullscreen container.\n");
840 if (con_is_floating(con)) {
841 DLOG("Container is floating, using parent instead.\n");
845 Con *source_ws = con_get_workspace(con);
847 if (con->type == CT_WORKSPACE) {
848 /* Re-parent all of the old workspace's floating windows. */
850 while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
851 child = TAILQ_FIRST(&(source_ws->floating_head));
852 con_move_to_workspace(child, target_ws, true, true, false);
855 /* If there are no non-floating children, ignore the workspace. */
856 if (con_is_leaf(con))
859 con = workspace_encapsulate(con);
861 ELOG("Workspace failed to move its contents into a container!\n");
866 /* Save the urgency state so that we can restore it. */
867 bool urgent = con->urgent;
869 /* Save the current workspace. So we can call workspace_show() by the end
870 * of this function. */
871 Con *current_ws = con_get_workspace(focused);
873 Con *source_output = con_get_output(con),
874 *dest_output = con_get_output(target_ws);
876 /* 1: save the container which is going to be focused after the current
877 * container is moved away */
878 Con *focus_next = con_next_focused(con);
880 /* 2: we go up one level, but only when target is a normal container */
881 if (target->type != CT_WORKSPACE) {
882 DLOG("target originally = %p / %s / type %d\n", target, target->name, target->type);
883 target = target->parent;
886 /* 3: if the target container is floating, we get the workspace instead.
887 * Only tiling windows need to get inserted next to the current container.
889 Con *floatingcon = con_inside_floating(target);
890 if (floatingcon != NULL) {
891 DLOG("floatingcon, going up even further\n");
892 target = floatingcon->parent;
895 if (con->type == CT_FLOATING_CON) {
896 Con *ws = con_get_workspace(target);
897 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
901 if (source_output != dest_output) {
902 /* Take the relative coordinates of the current output, then add them
903 * to the coordinate space of the correct output */
904 if (fix_coordinates && con->type == CT_FLOATING_CON) {
905 floating_fix_coordinates(con, &(source_output->rect), &(dest_output->rect));
907 DLOG("Not fixing coordinates, fix_coordinates flag = %d\n", fix_coordinates);
909 /* If moving to a visible workspace, call show so it can be considered
910 * focused. Must do before attaching because workspace_show checks to see
911 * if focused container is in its area. */
912 if (!ignore_focus && workspace_is_visible(target_ws)) {
913 workspace_show(target_ws);
915 /* Don’t warp if told so (when dragging floating windows with the
916 * mouse for example) */
920 x_set_warp_to(&(con->rect));
924 /* If moving a fullscreen container and the destination already has a
925 * fullscreen window on it, un-fullscreen the target's fullscreen con. */
926 Con *fullscreen = con_get_fullscreen_con(target_ws, CF_OUTPUT);
927 if (con->fullscreen_mode != CF_NONE && fullscreen != NULL) {
928 con_toggle_fullscreen(fullscreen, CF_OUTPUT);
932 DLOG("Re-attaching container to %p / %s\n", target, target->name);
933 /* 4: re-attach the con to the parent of this focused container */
934 Con *parent = con->parent;
936 _con_attach(con, target, behind_focused ? NULL : orig_target, !behind_focused);
938 /* 5: fix the percentages */
939 con_fix_percent(parent);
941 con_fix_percent(target);
943 /* 6: focus the con on the target workspace, but only within that
944 * workspace, that is, don’t move focus away if the target workspace is
946 * We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
947 * we don’t focus when there is a fullscreen con on that workspace. We
948 * also don't do it if the caller requested to ignore focus. */
949 if (!ignore_focus && !con_is_internal(target_ws) && !fullscreen) {
950 /* We need to save the focused workspace on the output in case the
951 * new workspace is hidden and it's necessary to immediately switch
952 * back to the originally-focused workspace. */
953 Con *old_focus = TAILQ_FIRST(&(output_get_content(dest_output)->focus_head));
954 con_focus(con_descend_focused(con));
956 /* Restore focus if the output's focused workspace has changed. */
957 if (con_get_workspace(focused) != old_focus)
958 con_focus(old_focus);
961 /* 7: when moving to another workspace, we leave the focus on the current
962 * workspace. (see also #809) */
964 /* Descend focus stack in case focus_next is a workspace which can
965 * occur if we move to the same workspace. Also show current workspace
966 * to ensure it is focused. */
968 workspace_show(current_ws);
970 /* Set focus only if con was on current workspace before moving.
971 * Otherwise we would give focus to some window on different workspace. */
972 if (!ignore_focus && source_ws == current_ws)
973 con_focus(con_descend_focused(focus_next));
975 /* 8. If anything within the container is associated with a startup sequence,
976 * delete it so child windows won't be created on the old workspace. */
977 struct Startup_Sequence *sequence;
978 xcb_get_property_cookie_t cookie;
979 xcb_get_property_reply_t *startup_id_reply;
981 if (!con_is_leaf(con)) {
983 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
987 cookie = xcb_get_property(conn, false, child->window->id,
988 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
989 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
991 sequence = startup_sequence_get(child->window, startup_id_reply, true);
992 if (sequence != NULL)
993 startup_sequence_delete(sequence);
998 cookie = xcb_get_property(conn, false, con->window->id,
999 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
1000 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
1002 sequence = startup_sequence_get(con->window, startup_id_reply, true);
1003 if (sequence != NULL)
1004 startup_sequence_delete(sequence);
1007 CALL(parent, on_remove_child);
1009 /* 9. If the container was marked urgent, move the urgency hint. */
1011 workspace_update_urgent_flag(source_ws);
1012 con_set_urgency(con, true);
1015 ipc_send_window_event("move", con);
1020 * Moves the given container to the given mark.
1023 bool con_move_to_mark(Con *con, const char *mark) {
1024 Con *target = con_by_mark(mark);
1025 if (target == NULL) {
1026 DLOG("found no container with mark \"%s\"\n", mark);
1030 /* For floating target containers, we just send the window to the same workspace. */
1031 if (con_is_floating(target)) {
1032 DLOG("target container is floating, moving container to target's workspace.\n");
1033 con_move_to_workspace(con, con_get_workspace(target), true, false, false);
1037 if (con->type == CT_WORKSPACE) {
1038 DLOG("target container is a workspace, simply moving the container there.\n");
1039 con_move_to_workspace(con, target, true, false, false);
1043 /* For split containers, we use the currently focused container within it.
1044 * This allows setting marks on, e.g., tabbed containers which will move
1045 * con to a new tab behind the focused tab. */
1046 if (con_is_split(target)) {
1047 DLOG("target is a split container, descending to the currently focused child.\n");
1048 target = TAILQ_FIRST(&(target->focus_head));
1051 if (con == target || con == target->parent) {
1052 DLOG("cannot move the container to or inside itself, aborting.\n");
1056 return _con_move_to_con(con, target, false, true, false, false);
1060 * Moves the given container to the currently focused container on the given
1063 * The fix_coordinates flag will translate the current coordinates (offset from
1064 * the monitor position basically) to appropriate coordinates on the
1065 * destination workspace.
1066 * Not enabling this behaviour comes in handy when this function gets called by
1067 * floating_maybe_reassign_ws, which will only "move" a floating window when it
1068 * *already* changed its coordinates to a different output.
1070 * The dont_warp flag disables pointer warping and will be set when this
1071 * function is called while dragging a floating window.
1073 * If ignore_focus is set, the container will be moved without modifying focus
1076 * TODO: is there a better place for this function?
1079 void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp, bool ignore_focus) {
1080 assert(workspace->type == CT_WORKSPACE);
1082 Con *source_ws = con_get_workspace(con);
1083 if (workspace == source_ws) {
1084 DLOG("Not moving, already there\n");
1088 Con *target = con_descend_focused(workspace);
1089 _con_move_to_con(con, target, true, fix_coordinates, dont_warp, ignore_focus);
1093 * Returns the orientation of the given container (for stacked containers,
1094 * vertical orientation is used regardless of the actual orientation of the
1098 orientation_t con_orientation(Con *con) {
1099 switch (con->layout) {
1101 /* stacking containers behave like they are in vertical orientation */
1106 /* tabbed containers behave like they are in vertical orientation */
1111 DLOG("Someone called con_orientation() on a con with L_DEFAULT, this is a bug in the code.\n");
1117 DLOG("con_orientation() called on dockarea/output (%d) container %p\n", con->layout, con);
1122 DLOG("con_orientation() ran into default\n");
1128 * Returns the container which will be focused next when the given container
1129 * is not available anymore. Called in tree_close and con_move_to_workspace
1130 * to properly restore focus.
1133 Con *con_next_focused(Con *con) {
1135 /* floating containers are attached to a workspace, so we focus either the
1136 * next floating container (if any) or the workspace itself. */
1137 if (con->type == CT_FLOATING_CON) {
1138 DLOG("selecting next for CT_FLOATING_CON\n");
1139 next = TAILQ_NEXT(con, floating_windows);
1140 DLOG("next = %p\n", next);
1142 next = TAILQ_PREV(con, floating_head, floating_windows);
1143 DLOG("using prev, next = %p\n", next);
1146 Con *ws = con_get_workspace(con);
1148 DLOG("no more floating containers for next = %p, restoring workspace focus\n", next);
1149 while (next != TAILQ_END(&(ws->focus_head)) && !TAILQ_EMPTY(&(next->focus_head))) {
1150 next = TAILQ_FIRST(&(next->focus_head));
1152 DLOG("skipping container itself, we want the next client\n");
1153 next = TAILQ_NEXT(next, focused);
1156 if (next == TAILQ_END(&(ws->focus_head))) {
1157 DLOG("Focus list empty, returning ws\n");
1161 /* Instead of returning the next CT_FLOATING_CON, we descend it to
1162 * get an actual window to focus. */
1163 next = con_descend_focused(next);
1168 /* dock clients cannot be focused, so we focus the workspace instead */
1169 if (con->parent->type == CT_DOCKAREA) {
1170 DLOG("selecting workspace for dock client\n");
1171 return con_descend_focused(output_get_content(con->parent->parent));
1174 /* if 'con' is not the first entry in the focus stack, use the first one as
1175 * it’s currently focused already */
1176 Con *first = TAILQ_FIRST(&(con->parent->focus_head));
1178 DLOG("Using first entry %p\n", first);
1181 /* try to focus the next container on the same level as this one or fall
1182 * back to its parent */
1183 if (!(next = TAILQ_NEXT(con, focused)))
1187 /* now go down the focus stack as far as
1188 * possible, excluding the current container */
1189 while (!TAILQ_EMPTY(&(next->focus_head)) &&
1190 TAILQ_FIRST(&(next->focus_head)) != con)
1191 next = TAILQ_FIRST(&(next->focus_head));
1197 * Get the next/previous container in the specified orientation. This may
1198 * travel up until it finds a container with suitable orientation.
1201 Con *con_get_next(Con *con, char way, orientation_t orientation) {
1202 DLOG("con_get_next(way=%c, orientation=%d)\n", way, orientation);
1203 /* 1: get the first parent with the same orientation */
1205 while (con_orientation(cur->parent) != orientation) {
1206 DLOG("need to go one level further up\n");
1207 if (cur->parent->type == CT_WORKSPACE) {
1208 LOG("that's a workspace, we can't go further up\n");
1214 /* 2: chose next (or previous) */
1217 next = TAILQ_NEXT(cur, nodes);
1218 /* if we are at the end of the list, we need to wrap */
1219 if (next == TAILQ_END(&(parent->nodes_head)))
1222 next = TAILQ_PREV(cur, nodes_head, nodes);
1223 /* if we are at the end of the list, we need to wrap */
1224 if (next == TAILQ_END(&(cur->nodes_head)))
1227 DLOG("next = %p\n", next);
1233 * Returns the focused con inside this client, descending the tree as far as
1234 * possible. This comes in handy when attaching a con to a workspace at the
1235 * currently focused position, for example.
1238 Con *con_descend_focused(Con *con) {
1240 while (next != focused && !TAILQ_EMPTY(&(next->focus_head)))
1241 next = TAILQ_FIRST(&(next->focus_head));
1246 * Returns the focused con inside this client, descending the tree as far as
1247 * possible. This comes in handy when attaching a con to a workspace at the
1248 * currently focused position, for example.
1250 * Works like con_descend_focused but considers only tiling cons.
1253 Con *con_descend_tiling_focused(Con *con) {
1257 if (next == focused)
1261 TAILQ_FOREACH(child, &(next->focus_head), focused) {
1262 if (child->type == CT_FLOATING_CON)
1268 } while (before != next && next != focused);
1273 * Returns the leftmost, rightmost, etc. container in sub-tree. For example, if
1274 * direction is D_LEFT, then we return the rightmost container and if direction
1275 * is D_RIGHT, we return the leftmost container. This is because if we are
1276 * moving D_LEFT, and thus want the rightmost container.
1279 Con *con_descend_direction(Con *con, direction_t direction) {
1282 int orientation = con_orientation(con);
1283 DLOG("con_descend_direction(%p, orientation %d, direction %d)\n", con, orientation, direction);
1284 if (direction == D_LEFT || direction == D_RIGHT) {
1285 if (orientation == HORIZ) {
1286 /* If the direction is horizontal, we can use either the first
1287 * (D_RIGHT) or the last con (D_LEFT) */
1288 if (direction == D_RIGHT)
1289 most = TAILQ_FIRST(&(con->nodes_head));
1291 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1292 } else if (orientation == VERT) {
1293 /* Wrong orientation. We use the last focused con. Within that con,
1294 * we recurse to chose the left/right con or at least the last
1296 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1297 if (current->type != CT_FLOATING_CON) {
1303 /* If the con has no orientation set, it’s not a split container
1304 * but a container with a client window, so stop recursing */
1309 if (direction == D_UP || direction == D_DOWN) {
1310 if (orientation == VERT) {
1311 /* If the direction is vertical, we can use either the first
1312 * (D_DOWN) or the last con (D_UP) */
1313 if (direction == D_UP)
1314 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1316 most = TAILQ_FIRST(&(con->nodes_head));
1317 } else if (orientation == HORIZ) {
1318 /* Wrong orientation. We use the last focused con. Within that con,
1319 * we recurse to chose the top/bottom con or at least the last
1321 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1322 if (current->type != CT_FLOATING_CON) {
1328 /* If the con has no orientation set, it’s not a split container
1329 * but a container with a client window, so stop recursing */
1336 return con_descend_direction(most, direction);
1340 * Returns a "relative" Rect which contains the amount of pixels that need to
1341 * be added to the original Rect to get the final position (obviously the
1342 * amount of pixels for normal, 1pixel and borderless are different).
1345 Rect con_border_style_rect(Con *con) {
1346 adjacent_t borders_to_hide = ADJ_NONE;
1347 int border_width = con->current_border_width;
1348 DLOG("The border width for con is set to: %d\n", con->current_border_width);
1350 if (con->current_border_width < 0) {
1351 if (con_is_floating(con)) {
1352 border_width = config.default_floating_border_width;
1354 border_width = config.default_border_width;
1357 DLOG("Effective border width is set to: %d\n", border_width);
1358 /* Shortcut to avoid calling con_adjacent_borders() on dock containers. */
1359 int border_style = con_border_style(con);
1360 if (border_style == BS_NONE)
1361 return (Rect){0, 0, 0, 0};
1362 if (border_style == BS_NORMAL) {
1363 result = (Rect){border_width, 0, -(2 * border_width), -(border_width)};
1365 result = (Rect){border_width, border_width, -(2 * border_width), -(2 * border_width)};
1368 borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
1369 if (borders_to_hide & ADJ_LEFT_SCREEN_EDGE) {
1370 result.x -= border_width;
1371 result.width += border_width;
1373 if (borders_to_hide & ADJ_RIGHT_SCREEN_EDGE) {
1374 result.width += border_width;
1376 if (borders_to_hide & ADJ_UPPER_SCREEN_EDGE && (border_style != BS_NORMAL)) {
1377 result.y -= border_width;
1378 result.height += border_width;
1380 if (borders_to_hide & ADJ_LOWER_SCREEN_EDGE) {
1381 result.height += border_width;
1387 * Returns adjacent borders of the window. We need this if hide_edge_borders is
1390 adjacent_t con_adjacent_borders(Con *con) {
1391 adjacent_t result = ADJ_NONE;
1392 /* Floating windows are never adjacent to any other window, so
1393 don’t hide their border(s). This prevents bug #998. */
1394 if (con_is_floating(con))
1397 Con *workspace = con_get_workspace(con);
1398 if (con->rect.x == workspace->rect.x)
1399 result |= ADJ_LEFT_SCREEN_EDGE;
1400 if (con->rect.x + con->rect.width == workspace->rect.x + workspace->rect.width)
1401 result |= ADJ_RIGHT_SCREEN_EDGE;
1402 if (con->rect.y == workspace->rect.y)
1403 result |= ADJ_UPPER_SCREEN_EDGE;
1404 if (con->rect.y + con->rect.height == workspace->rect.y + workspace->rect.height)
1405 result |= ADJ_LOWER_SCREEN_EDGE;
1410 * Use this function to get a container’s border style. This is important
1411 * because when inside a stack, the border style is always BS_NORMAL.
1412 * For tabbed mode, the same applies, with one exception: when the container is
1413 * borderless and the only element in the tabbed container, the border is not
1416 * For children of a CT_DOCKAREA, the border style is always none.
1419 int con_border_style(Con *con) {
1420 Con *fs = con_get_fullscreen_con(con->parent, CF_OUTPUT);
1422 DLOG("this one is fullscreen! overriding BS_NONE\n");
1426 if (con->parent->layout == L_STACKED)
1427 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1429 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
1430 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1432 if (con->parent->type == CT_DOCKAREA)
1435 return con->border_style;
1439 * Sets the given border style on con, correctly keeping the position/size of a
1443 void con_set_border_style(Con *con, int border_style, int border_width) {
1444 /* Handle the simple case: non-floating containerns */
1445 if (!con_is_floating(con)) {
1446 con->border_style = border_style;
1447 con->current_border_width = border_width;
1451 /* For floating containers, we want to keep the position/size of the
1452 * *window* itself. We first add the border pixels to con->rect to make
1453 * con->rect represent the absolute position of the window (same for
1454 * parent). Then, we change the border style and subtract the new border
1455 * pixels. For the parent, we do the same also for the decoration. */
1456 DLOG("This is a floating container\n");
1458 Con *parent = con->parent;
1459 Rect bsr = con_border_style_rect(con);
1460 int deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1462 con->rect = rect_add(con->rect, bsr);
1463 parent->rect = rect_add(parent->rect, bsr);
1464 parent->rect.y += deco_height;
1465 parent->rect.height -= deco_height;
1467 /* Change the border style, get new border/decoration values. */
1468 con->border_style = border_style;
1469 con->current_border_width = border_width;
1470 bsr = con_border_style_rect(con);
1471 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1473 con->rect = rect_sub(con->rect, bsr);
1474 parent->rect = rect_sub(parent->rect, bsr);
1475 parent->rect.y -= deco_height;
1476 parent->rect.height += deco_height;
1480 * This function changes the layout of a given container. Use it to handle
1481 * special cases like changing a whole workspace to stacked/tabbed (creates a
1482 * new split container before).
1485 void con_set_layout(Con *con, layout_t layout) {
1486 DLOG("con_set_layout(%p, %d), con->type = %d\n",
1487 con, layout, con->type);
1489 /* Users can focus workspaces, but not any higher in the hierarchy.
1490 * Focus on the workspace is a special case, since in every other case, the
1491 * user means "change the layout of the parent split container". */
1492 if (con->type != CT_WORKSPACE)
1495 /* We fill in last_split_layout when switching to a different layout
1496 * since there are many places in the code that don’t use
1497 * con_set_layout(). */
1498 if (con->layout == L_SPLITH || con->layout == L_SPLITV)
1499 con->last_split_layout = con->layout;
1501 /* When the container type is CT_WORKSPACE, the user wants to change the
1502 * whole workspace into stacked/tabbed mode. To do this and still allow
1503 * intuitive operations (like level-up and then opening a new window), we
1504 * need to create a new split container. */
1505 if (con->type == CT_WORKSPACE &&
1506 (layout == L_STACKED || layout == L_TABBED)) {
1507 if (con_num_children(con) == 0) {
1508 DLOG("Setting workspace_layout to %d\n", layout);
1509 con->workspace_layout = layout;
1511 DLOG("Creating new split container\n");
1512 /* 1: create a new split container */
1513 Con *new = con_new(NULL, NULL);
1516 /* 2: Set the requested layout on the split container and mark it as
1518 new->layout = layout;
1519 new->last_split_layout = con->last_split_layout;
1521 /* Save the container that was focused before we move containers
1522 * around, but only if the container is visible (otherwise focus
1523 * will be restored properly automatically when switching). */
1524 Con *old_focused = TAILQ_FIRST(&(con->focus_head));
1525 if (old_focused == TAILQ_END(&(con->focus_head)))
1527 if (old_focused != NULL &&
1528 !workspace_is_visible(con_get_workspace(old_focused)))
1531 /* 3: move the existing cons of this workspace below the new con */
1532 DLOG("Moving cons\n");
1534 while (!TAILQ_EMPTY(&(con->nodes_head))) {
1535 child = TAILQ_FIRST(&(con->nodes_head));
1537 con_attach(child, new, true);
1540 /* 4: attach the new split container to the workspace */
1541 DLOG("Attaching new split to ws\n");
1542 con_attach(new, con, false);
1545 con_focus(old_focused);
1547 tree_flatten(croot);
1549 con_force_split_parents_redraw(con);
1553 if (layout == L_DEFAULT) {
1554 /* Special case: the layout formerly known as "default" (in combination
1555 * with an orientation). Since we switched to splith/splitv layouts,
1556 * using the "default" layout (which "only" should happen when using
1557 * legacy configs) is using the last split layout (either splith or
1558 * splitv) in order to still do the same thing. */
1559 con->layout = con->last_split_layout;
1560 /* In case last_split_layout was not initialized… */
1561 if (con->layout == L_DEFAULT)
1562 con->layout = L_SPLITH;
1564 con->layout = layout;
1566 con_force_split_parents_redraw(con);
1570 * This function toggles the layout of a given container. toggle_mode can be
1571 * either 'default' (toggle only between stacked/tabbed/last_split_layout),
1572 * 'split' (toggle only between splitv/splith) or 'all' (toggle between all
1576 void con_toggle_layout(Con *con, const char *toggle_mode) {
1578 /* Users can focus workspaces, but not any higher in the hierarchy.
1579 * Focus on the workspace is a special case, since in every other case, the
1580 * user means "change the layout of the parent split container". */
1581 if (con->type != CT_WORKSPACE)
1582 parent = con->parent;
1583 DLOG("con_toggle_layout(%p, %s), parent = %p\n", con, toggle_mode, parent);
1585 if (strcmp(toggle_mode, "split") == 0) {
1586 /* Toggle between splits. When the current layout is not a split
1587 * layout, we just switch back to last_split_layout. Otherwise, we
1588 * change to the opposite split layout. */
1589 if (parent->layout != L_SPLITH && parent->layout != L_SPLITV)
1590 con_set_layout(con, parent->last_split_layout);
1592 if (parent->layout == L_SPLITH)
1593 con_set_layout(con, L_SPLITV);
1595 con_set_layout(con, L_SPLITH);
1598 if (parent->layout == L_STACKED)
1599 con_set_layout(con, L_TABBED);
1600 else if (parent->layout == L_TABBED) {
1601 if (strcmp(toggle_mode, "all") == 0)
1602 con_set_layout(con, L_SPLITH);
1604 con_set_layout(con, parent->last_split_layout);
1605 } else if (parent->layout == L_SPLITH || parent->layout == L_SPLITV) {
1606 if (strcmp(toggle_mode, "all") == 0) {
1607 /* When toggling through all modes, we toggle between
1608 * splith/splitv, whereas normally we just directly jump to
1610 if (parent->layout == L_SPLITH)
1611 con_set_layout(con, L_SPLITV);
1613 con_set_layout(con, L_STACKED);
1615 con_set_layout(con, L_STACKED);
1622 * Callback which will be called when removing a child from the given con.
1623 * Kills the container if it is empty and replaces it with the child if there
1624 * is exactly one child.
1627 static void con_on_remove_child(Con *con) {
1628 DLOG("on_remove_child\n");
1630 /* Every container 'above' (in the hierarchy) the workspace content should
1631 * not be closed when the last child was removed */
1632 if (con->type == CT_OUTPUT ||
1633 con->type == CT_ROOT ||
1634 con->type == CT_DOCKAREA ||
1635 (con->parent != NULL && con->parent->type == CT_OUTPUT)) {
1636 DLOG("not handling, type = %d, name = %s\n", con->type, con->name);
1640 /* For workspaces, close them only if they're not visible anymore */
1641 if (con->type == CT_WORKSPACE) {
1642 if (TAILQ_EMPTY(&(con->focus_head)) && !workspace_is_visible(con)) {
1643 LOG("Closing old workspace (%p / %s), it is empty\n", con, con->name);
1644 yajl_gen gen = ipc_marshal_workspace_event("empty", con, NULL);
1645 tree_close(con, DONT_KILL_WINDOW, false, false);
1647 const unsigned char *payload;
1649 y(get_buf, &payload, &length);
1650 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, (const char *)payload);
1657 con_force_split_parents_redraw(con);
1658 con->urgent = con_has_urgent_child(con);
1659 con_update_parents_urgency(con);
1661 /* TODO: check if this container would swallow any other client and
1662 * don’t close it automatically. */
1663 int children = con_num_children(con);
1664 if (children == 0) {
1665 DLOG("Container empty, closing\n");
1666 tree_close(con, DONT_KILL_WINDOW, false, false);
1672 * Determines the minimum size of the given con by looking at its children (for
1673 * split/stacked/tabbed cons). Will be called when resizing floating cons
1676 Rect con_minimum_size(Con *con) {
1677 DLOG("Determining minimum size for con %p\n", con);
1679 if (con_is_leaf(con)) {
1680 DLOG("leaf node, returning 75x50\n");
1681 return (Rect){0, 0, 75, 50};
1684 if (con->type == CT_FLOATING_CON) {
1685 DLOG("floating con\n");
1686 Con *child = TAILQ_FIRST(&(con->nodes_head));
1687 return con_minimum_size(child);
1690 if (con->layout == L_STACKED || con->layout == L_TABBED) {
1691 uint32_t max_width = 0, max_height = 0, deco_height = 0;
1693 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1694 Rect min = con_minimum_size(child);
1695 deco_height += child->deco_rect.height;
1696 max_width = max(max_width, min.width);
1697 max_height = max(max_height, min.height);
1699 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
1700 max_width, max_height, deco_height);
1701 return (Rect){0, 0, max_width, max_height + deco_height};
1704 /* For horizontal/vertical split containers we sum up the width (h-split)
1705 * or height (v-split) and use the maximum of the height (h-split) or width
1706 * (v-split) as minimum size. */
1707 if (con_is_split(con)) {
1708 uint32_t width = 0, height = 0;
1710 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1711 Rect min = con_minimum_size(child);
1712 if (con->layout == L_SPLITH) {
1714 height = max(height, min.height);
1716 height += min.height;
1717 width = max(width, min.width);
1720 DLOG("split container, returning width = %d x height = %d\n", width, height);
1721 return (Rect){0, 0, width, height};
1724 ELOG("Unhandled case, type = %d, layout = %d, split = %d\n",
1725 con->type, con->layout, con_is_split(con));
1730 * Returns true if changing the focus to con would be allowed considering
1731 * the fullscreen focus constraints. Specifically, if a fullscreen container or
1732 * any of its descendants is focused, this function returns true if and only if
1733 * focusing con would mean that focus would still be visible on screen, i.e.,
1734 * the newly focused container would not be obscured by a fullscreen container.
1736 * In the simplest case, if a fullscreen container or any of its descendants is
1737 * fullscreen, this functions returns true if con is the fullscreen container
1738 * itself or any of its descendants, as this means focus wouldn't escape the
1739 * boundaries of the fullscreen container.
1741 * In case the fullscreen container is of type CF_OUTPUT, this function returns
1742 * true if con is on a different workspace, as focus wouldn't be obscured by
1743 * the fullscreen container that is constrained to a different workspace.
1745 * Note that this same logic can be applied to moving containers. If a
1746 * container can be focused under the fullscreen focus constraints, it can also
1747 * become a parent or sibling to the currently focused container.
1750 bool con_fullscreen_permits_focusing(Con *con) {
1751 /* No focus, no problem. */
1755 /* Find the first fullscreen ascendent. */
1757 while (fs && fs->fullscreen_mode == CF_NONE)
1760 /* fs must be non-NULL since the workspace con doesn’t have CF_NONE and
1761 * there always has to be a workspace con in the hierarchy. */
1763 /* The most common case is we hit the workspace level. In this
1764 * situation, changing focus is also harmless. */
1765 assert(fs->fullscreen_mode != CF_NONE);
1766 if (fs->type == CT_WORKSPACE)
1769 /* Allow it if the container itself is the fullscreen container. */
1773 /* If fullscreen is per-output, the focus being in a different workspace is
1774 * sufficient to guarantee that change won't leave fullscreen in bad shape. */
1775 if (fs->fullscreen_mode == CF_OUTPUT &&
1776 con_get_workspace(con) != con_get_workspace(fs)) {
1780 /* Allow it only if the container to be focused is contained within the
1781 * current fullscreen container. */
1783 if (con->parent == fs)
1788 /* Focusing con would hide it behind a fullscreen window, disallow it. */
1794 * Checks if the given container has an urgent child.
1797 bool con_has_urgent_child(Con *con) {
1800 if (con_is_leaf(con))
1803 /* We are not interested in floating windows since they can only be
1804 * attached to a workspace → nodes_head instead of focus_head */
1805 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1806 if (con_has_urgent_child(child))
1814 * Make all parent containers urgent if con is urgent or clear the urgent flag
1815 * of all parent containers if there are no more urgent children left.
1818 void con_update_parents_urgency(Con *con) {
1819 Con *parent = con->parent;
1821 bool new_urgency_value = con->urgent;
1822 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
1823 if (new_urgency_value) {
1824 parent->urgent = true;
1826 /* We can only reset the urgency when the parent
1827 * has no other urgent children */
1828 if (!con_has_urgent_child(parent))
1829 parent->urgent = false;
1831 parent = parent->parent;
1836 * Set urgency flag to the container, all the parent containers and the workspace.
1839 void con_set_urgency(Con *con, bool urgent) {
1840 if (urgent && focused == con) {
1841 DLOG("Ignoring urgency flag for current client\n");
1845 const bool old_urgent = con->urgent;
1847 if (con->urgency_timer == NULL) {
1848 con->urgent = urgent;
1850 DLOG("Discarding urgency WM_HINT because timer is running\n");
1855 gettimeofday(&con->window->urgent, NULL);
1857 con->window->urgent.tv_sec = 0;
1858 con->window->urgent.tv_usec = 0;
1862 con_update_parents_urgency(con);
1865 /* Set the urgency flag on the workspace, if a workspace could be found
1866 * (for dock clients, that is not the case). */
1867 if ((ws = con_get_workspace(con)) != NULL)
1868 workspace_update_urgent_flag(ws);
1870 if (con->urgent != old_urgent) {
1871 LOG("Urgency flag changed to %d\n", con->urgent);
1872 ipc_send_window_event("urgent", con);
1877 * Create a string representing the subtree under con.
1880 char *con_get_tree_representation(Con *con) {
1881 /* this code works as follows:
1882 * 1) create a string with the layout type (D/V/H/T/S) and an opening bracket
1883 * 2) append the tree representation of the children to the string
1884 * 3) add closing bracket
1886 * The recursion ends when we hit a leaf, in which case we return the
1887 * class_instance of the contained window.
1890 /* end of recursion */
1891 if (con_is_leaf(con)) {
1893 return sstrdup("nowin");
1895 if (!con->window->class_instance)
1896 return sstrdup("noinstance");
1898 return sstrdup(con->window->class_instance);
1902 /* 1) add the Layout type to buf */
1903 if (con->layout == L_DEFAULT)
1904 buf = sstrdup("D[");
1905 else if (con->layout == L_SPLITV)
1906 buf = sstrdup("V[");
1907 else if (con->layout == L_SPLITH)
1908 buf = sstrdup("H[");
1909 else if (con->layout == L_TABBED)
1910 buf = sstrdup("T[");
1911 else if (con->layout == L_STACKED)
1912 buf = sstrdup("S[");
1914 ELOG("BUG: Code not updated to account for new layout type\n");
1918 /* 2) append representation of children */
1920 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1921 char *child_txt = con_get_tree_representation(child);
1924 sasprintf(&tmp_buf, "%s%s%s", buf,
1925 (TAILQ_FIRST(&(con->nodes_head)) == child ? "" : " "), child_txt);
1930 /* 3) close the brackets */
1932 sasprintf(&complete_buf, "%s]", buf);
1935 return complete_buf;