2 * vim:ts=4:sw=4:expandtab
4 * i3 - an improved dynamic tiling window manager
5 * © 2009-2010 Michael Stapelberg and contributors (see also: LICENSE)
7 * con.c contains all functions which deal with containers directly (creating
8 * containers, searching containers, getting specific properties from
27 static void con_on_remove_child(Con *con);
30 * Create a new container (and attach it to the given parent, if not NULL).
31 * This function initializes the data structures and creates the appropriate
32 * X11 IDs using x_con_init().
35 Con *con_new(Con *parent, i3Window *window) {
36 Con *new = scalloc(sizeof(Con));
37 new->on_remove_child = con_on_remove_child;
38 TAILQ_INSERT_TAIL(&all_cons, new, all_cons);
41 new->border_style = config.default_border;
43 DLOG("opening window %d\n", cnt);
45 /* TODO: remove window coloring after test-phase */
46 DLOG("color %s\n", colors[cnt]);
47 new->name = strdup(colors[cnt]);
48 //uint32_t cp = get_colorpixel(colors[cnt]);
50 if ((cnt % (sizeof(colors) / sizeof(char*))) == 0)
55 // TODO: this needs to be integrated into src/x.c and updated on config file reloads
56 xcb_change_window_attributes(conn, new->frame, XCB_CW_BACK_PIXEL, &config.client.background);
58 TAILQ_INIT(&(new->floating_head));
59 TAILQ_INIT(&(new->nodes_head));
60 TAILQ_INIT(&(new->focus_head));
61 TAILQ_INIT(&(new->swallow_head));
64 con_attach(new, parent, false);
70 * Attaches the given container to the given parent. This happens when moving
71 * a container or when inserting a new container at a specific place in the
74 * ignore_focus is to just insert the Con at the end (useful when creating a
75 * new split container *around* some containers, that is, detaching and
76 * attaching them in order without wanting to mess with the focus in between).
79 void con_attach(Con *con, Con *parent, bool ignore_focus) {
83 struct nodes_head *nodes_head = &(parent->nodes_head);
84 struct focus_head *focus_head = &(parent->focus_head);
86 /* Workspaces are handled differently: they need to be inserted at the
88 if (con->type == CT_WORKSPACE) {
89 DLOG("it's a workspace. num = %d\n", con->num);
90 if (con->num == -1 || TAILQ_EMPTY(nodes_head)) {
91 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
93 current = TAILQ_FIRST(nodes_head);
94 if (con->num < current->num) {
95 /* we need to insert the container at the beginning */
96 TAILQ_INSERT_HEAD(nodes_head, con, nodes);
98 while (current->num != -1 && con->num > current->num) {
99 current = TAILQ_NEXT(current, nodes);
100 if (current == TAILQ_END(nodes_head)) {
105 /* we need to insert con after current, if current is not NULL */
107 TAILQ_INSERT_BEFORE(current, con, nodes);
108 else TAILQ_INSERT_TAIL(nodes_head, con, nodes);
111 goto add_to_focus_head;
114 if (con->type == CT_FLOATING_CON) {
115 DLOG("Inserting into floating containers\n");
116 TAILQ_INSERT_TAIL(&(parent->floating_head), con, floating_windows);
119 /* Get the first tiling container in focus stack */
120 TAILQ_FOREACH(loop, &(parent->focus_head), focused) {
121 if (loop->type == CT_FLOATING_CON)
128 /* When the container is not a split container (but contains a window)
129 * and is attached to a workspace, we check if the user configured a
130 * workspace_layout. This is done in workspace_attach_to, which will
131 * provide us with the container to which we should attach (either the
132 * workspace or a new split container with the configured
135 if (con->window != NULL && parent->type == CT_WORKSPACE) {
136 DLOG("Parent is a workspace. Applying default layout...\n");
137 Con *target = workspace_attach_to(parent);
139 /* Attach the original con to this new split con instead */
140 nodes_head = &(target->nodes_head);
141 focus_head = &(target->focus_head);
142 con->parent = target;
148 /* Insert the container after the tiling container, if found.
149 * When adding to a CT_OUTPUT, just append one after another. */
150 if (current && parent->type != CT_OUTPUT) {
151 DLOG("Inserting con = %p after last focused tiling con %p\n",
153 TAILQ_INSERT_AFTER(nodes_head, current, con, nodes);
154 } else TAILQ_INSERT_TAIL(nodes_head, con, nodes);
158 /* We insert to the TAIL because con_focus() will correct this.
159 * This way, we have the option to insert Cons without having
161 TAILQ_INSERT_TAIL(focus_head, con, focused);
165 * Detaches the given container from its current parent
168 void con_detach(Con *con) {
169 if (con->type == CT_FLOATING_CON) {
170 TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
171 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
173 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
174 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
179 * Sets input focus to the given container. Will be updated in X11 in the next
180 * run of x_push_changes().
183 void con_focus(Con *con) {
185 DLOG("con_focus = %p\n", con);
187 /* 1: set focused-pointer to the new con */
188 /* 2: exchange the position of the container in focus stack of the parent all the way up */
189 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
190 TAILQ_INSERT_HEAD(&(con->parent->focus_head), con, focused);
191 if (con->parent->parent != NULL)
192 con_focus(con->parent);
197 workspace_update_urgent_flag(con_get_workspace(con));
199 DLOG("con_focus done = %p\n", con);
203 * Returns true when this node is a leaf node (has no children)
206 bool con_is_leaf(Con *con) {
207 return TAILQ_EMPTY(&(con->nodes_head));
211 * Returns true if this node accepts a window (if the node swallows windows,
212 * it might already have swallowed enough and cannot hold any more).
215 bool con_accepts_window(Con *con) {
216 /* 1: workspaces never accept direct windows */
217 if (con->type == CT_WORKSPACE)
220 if (con->orientation != NO_ORIENTATION) {
221 DLOG("container %p does not accepts windows, orientation != NO_ORIENTATION\n", con);
225 /* TODO: if this is a swallowing container, we need to check its max_clients */
226 return (con->window == NULL);
230 * Gets the output container (first container with CT_OUTPUT in hierarchy) this
234 Con *con_get_output(Con *con) {
236 while (result != NULL && result->type != CT_OUTPUT)
237 result = result->parent;
238 /* We must be able to get an output because focus can never be set higher
239 * in the tree (root node cannot be focused). */
240 assert(result != NULL);
245 * Gets the workspace container this node is on.
248 Con *con_get_workspace(Con *con) {
250 while (result != NULL && result->type != CT_WORKSPACE)
251 result = result->parent;
256 * Searches parenst of the given 'con' until it reaches one with the specified
257 * 'orientation'. Aborts when it comes across a floating_con.
260 Con *con_parent_with_orientation(Con *con, orientation_t orientation) {
261 DLOG("Searching for parent of Con %p with orientation %d\n", con, orientation);
262 Con *parent = con->parent;
263 if (parent->type == CT_FLOATING_CON)
265 while (con_orientation(parent) != orientation) {
266 DLOG("Need to go one level further up\n");
267 parent = parent->parent;
268 /* Abort when we reach a floating con */
269 if (parent && parent->type == CT_FLOATING_CON)
274 DLOG("Result: %p\n", parent);
279 * helper data structure for the breadth-first-search in
280 * con_get_fullscreen_con()
286 TAILQ_ENTRY(bfs_entry) entries;
290 * Returns the first fullscreen node below this node.
293 Con *con_get_fullscreen_con(Con *con, int fullscreen_mode) {
294 Con *current, *child;
296 /* TODO: is breadth-first-search really appropriate? (check as soon as
297 * fullscreen levels and fullscreen for containers is implemented) */
298 TAILQ_HEAD(bfs_head, bfs_entry) bfs_head = TAILQ_HEAD_INITIALIZER(bfs_head);
299 struct bfs_entry *entry = smalloc(sizeof(struct bfs_entry));
301 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
303 while (!TAILQ_EMPTY(&bfs_head)) {
304 entry = TAILQ_FIRST(&bfs_head);
305 current = entry->con;
306 if (current != con && current->fullscreen_mode == fullscreen_mode) {
307 /* empty the queue */
308 while (!TAILQ_EMPTY(&bfs_head)) {
309 entry = TAILQ_FIRST(&bfs_head);
310 TAILQ_REMOVE(&bfs_head, entry, entries);
316 TAILQ_REMOVE(&bfs_head, entry, entries);
319 TAILQ_FOREACH(child, &(current->nodes_head), nodes) {
320 entry = smalloc(sizeof(struct bfs_entry));
322 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
325 TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
326 entry = smalloc(sizeof(struct bfs_entry));
328 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
336 * Returns true if the node is floating.
339 bool con_is_floating(Con *con) {
341 DLOG("checking if con %p is floating\n", con);
342 return (con->floating >= FLOATING_AUTO_ON);
346 * Checks if the given container is either floating or inside some floating
347 * container. It returns the FLOATING_CON container.
350 Con *con_inside_floating(Con *con) {
352 if (con->type == CT_FLOATING_CON)
355 if (con->floating >= FLOATING_AUTO_ON)
358 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
361 return con_inside_floating(con->parent);
365 * Returns the container with the given client window ID or NULL if no such
369 Con *con_by_window_id(xcb_window_t window) {
371 TAILQ_FOREACH(con, &all_cons, all_cons)
372 if (con->window != NULL && con->window->id == window)
378 * Returns the container with the given frame ID or NULL if no such container
382 Con *con_by_frame_id(xcb_window_t frame) {
384 TAILQ_FOREACH(con, &all_cons, all_cons)
385 if (con->frame == frame)
391 * Returns the first container below 'con' which wants to swallow this window
395 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
398 DLOG("searching con for window %p starting at con %p\n", window, con);
399 DLOG("class == %s\n", window->class_class);
401 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
402 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
403 if (!match_matches_window(match, window))
405 if (store_match != NULL)
406 *store_match = match;
409 Con *result = con_for_window(child, window, store_match);
414 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
415 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
416 if (!match_matches_window(match, window))
418 if (store_match != NULL)
419 *store_match = match;
422 Con *result = con_for_window(child, window, store_match);
431 * Returns the number of children of this container.
434 int con_num_children(Con *con) {
438 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
445 * Updates the percent attribute of the children of the given container. This
446 * function needs to be called when a window is added or removed from a
450 void con_fix_percent(Con *con) {
452 int children = con_num_children(con);
454 // calculate how much we have distributed and how many containers
455 // with a percentage set we have
457 int children_with_percent = 0;
458 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
459 if (child->percent > 0.0) {
460 total += child->percent;
461 ++children_with_percent;
465 // if there were children without a percentage set, set to a value that
466 // will make those children proportional to all others
467 if (children_with_percent != children) {
468 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
469 if (child->percent <= 0.0) {
470 if (children_with_percent == 0)
471 total += (child->percent = 1.0);
472 else total += (child->percent = total / children_with_percent);
477 // if we got a zero, just distribute the space equally, otherwise
478 // distribute according to the proportions we got
480 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
481 child->percent = 1.0 / children;
482 } else if (total != 1.0) {
483 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
484 child->percent /= total;
489 * Toggles fullscreen mode for the given container. Fullscreen mode will not be
490 * entered when there already is a fullscreen container on this workspace.
493 void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
494 Con *workspace, *fullscreen;
496 if (con->type == CT_WORKSPACE) {
497 DLOG("You cannot make a workspace fullscreen.\n");
501 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
502 if (con->fullscreen_mode == CF_NONE) {
503 /* 1: check if there already is a fullscreen con */
504 if (fullscreen_mode == CF_GLOBAL)
505 fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
507 workspace = con_get_workspace(con);
508 fullscreen = con_get_fullscreen_con(workspace, CF_OUTPUT);
510 if (fullscreen != NULL) {
511 LOG("Not entering fullscreen mode, container (%p/%s) "
512 "already is in fullscreen mode\n",
513 fullscreen, fullscreen->name);
514 goto update_netwm_state;
517 /* 2: enable fullscreen */
518 con->fullscreen_mode = fullscreen_mode;
520 /* 1: disable fullscreen */
521 con->fullscreen_mode = CF_NONE;
525 DLOG("mode now: %d\n", con->fullscreen_mode);
527 /* update _NET_WM_STATE if this container has a window */
528 /* TODO: when a window is assigned to a container which is already
529 * fullscreened, this state needs to be pushed to the client, too */
530 if (con->window == NULL)
534 unsigned int num = 0;
536 if (con->fullscreen_mode != CF_NONE)
537 values[num++] = A__NET_WM_STATE_FULLSCREEN;
539 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id,
540 A__NET_WM_STATE, A_ATOM, 32, num, values);
544 * Moves the given container to the currently focused container on the given
546 * TODO: is there a better place for this function?
549 void con_move_to_workspace(Con *con, Con *workspace) {
550 if (con->type == CT_WORKSPACE) {
551 DLOG("Moving workspaces is not yet implemented.\n");
555 if (con_is_floating(con)) {
556 DLOG("Using FLOATINGCON instead\n");
560 Con *source_output = con_get_output(con),
561 *dest_output = con_get_output(workspace);
563 /* 1: save the container which is going to be focused after the current
564 * container is moved away */
565 Con *focus_next = con_next_focused(con);
567 /* 2: get the focused container of this workspace */
568 Con *next = con_descend_focused(workspace);
570 /* 3: we go up one level, but only when next is a normal container */
571 if (next->type != CT_WORKSPACE) {
572 DLOG("next originally = %p / %s / type %d\n", next, next->name, next->type);
576 /* 4: if the target container is floating, we get the workspace instead.
577 * Only tiling windows need to get inserted next to the current container.
579 Con *floatingcon = con_inside_floating(next);
580 if (floatingcon != NULL) {
581 DLOG("floatingcon, going up even further\n");
582 next = floatingcon->parent;
585 if (con->type == CT_FLOATING_CON) {
586 Con *ws = con_get_workspace(next);
587 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
591 DLOG("Re-attaching container to %p / %s\n", next, next->name);
592 /* 5: re-attach the con to the parent of this focused container */
593 Con *parent = con->parent;
595 con_attach(con, next, false);
597 /* 6: fix the percentages */
598 con_fix_percent(parent);
600 con_fix_percent(next);
602 /* 7: focus the con on the target workspace (the X focus is only updated by
603 * calling tree_render(), so for the "real" focus this is a no-op) */
606 /* 8: when moving to a visible workspace on a different output, we keep the
607 * con focused. Otherwise, we leave the focus on the current workspace as we
608 * don’t want to focus invisible workspaces */
609 if (source_output != dest_output &&
610 workspace_is_visible(workspace)) {
611 DLOG("Moved to a different output, focusing target\n");
613 con_focus(focus_next);
616 CALL(parent, on_remove_child);
620 * Returns the orientation of the given container (for stacked containers,
621 * vertical orientation is used regardless of the actual orientation of the
625 int con_orientation(Con *con) {
626 /* stacking containers behave like they are in vertical orientation */
627 if (con->layout == L_STACKED)
630 if (con->layout == L_TABBED)
633 return con->orientation;
637 * Returns the container which will be focused next when the given container
638 * is not available anymore. Called in tree_close and con_move_to_workspace
639 * to properly restore focus.
642 Con *con_next_focused(Con *con) {
644 /* floating containers are attached to a workspace, so we focus either the
645 * next floating container (if any) or the workspace itself. */
646 if (con->type == CT_FLOATING_CON) {
647 DLOG("selecting next for CT_FLOATING_CON\n");
648 next = TAILQ_NEXT(con, floating_windows);
649 DLOG("next = %p\n", next);
651 next = TAILQ_PREV(con, floating_head, floating_windows);
652 DLOG("using prev, next = %p\n", next);
655 Con *ws = con_get_workspace(con);
657 DLOG("no more floating containers for next = %p, restoring workspace focus\n", next);
658 while (next != TAILQ_END(&(ws->focus_head)) && !TAILQ_EMPTY(&(next->focus_head))) {
659 next = TAILQ_FIRST(&(next->focus_head));
661 DLOG("skipping container itself, we want the next client\n");
662 next = TAILQ_NEXT(next, focused);
665 if (next == TAILQ_END(&(ws->focus_head))) {
666 DLOG("Focus list empty, returning ws\n");
670 /* Instead of returning the next CT_FLOATING_CON, we descend it to
671 * get an actual window to focus. */
672 next = con_descend_focused(next);
677 /* dock clients cannot be focused, so we focus the workspace instead */
678 if (con->parent->type == CT_DOCKAREA) {
679 DLOG("selecting workspace for dock client\n");
680 return con_descend_focused(output_get_content(con->parent->parent));
683 /* if 'con' is not the first entry in the focus stack, use the first one as
684 * it’s currently focused already */
685 Con *first = TAILQ_FIRST(&(con->parent->focus_head));
687 DLOG("Using first entry %p\n", first);
690 /* try to focus the next container on the same level as this one or fall
691 * back to its parent */
692 if (!(next = TAILQ_NEXT(con, focused)))
696 /* now go down the focus stack as far as
697 * possible, excluding the current container */
698 while (!TAILQ_EMPTY(&(next->focus_head)) &&
699 TAILQ_FIRST(&(next->focus_head)) != con)
700 next = TAILQ_FIRST(&(next->focus_head));
706 * Get the next/previous container in the specified orientation. This may
707 * travel up until it finds a container with suitable orientation.
710 Con *con_get_next(Con *con, char way, orientation_t orientation) {
711 DLOG("con_get_next(way=%c, orientation=%d)\n", way, orientation);
712 /* 1: get the first parent with the same orientation */
714 while (con_orientation(cur->parent) != orientation) {
715 DLOG("need to go one level further up\n");
716 if (cur->parent->type == CT_WORKSPACE) {
717 LOG("that's a workspace, we can't go further up\n");
723 /* 2: chose next (or previous) */
726 next = TAILQ_NEXT(cur, nodes);
727 /* if we are at the end of the list, we need to wrap */
728 if (next == TAILQ_END(&(parent->nodes_head)))
731 next = TAILQ_PREV(cur, nodes_head, nodes);
732 /* if we are at the end of the list, we need to wrap */
733 if (next == TAILQ_END(&(cur->nodes_head)))
736 DLOG("next = %p\n", next);
742 * Returns the focused con inside this client, descending the tree as far as
743 * possible. This comes in handy when attaching a con to a workspace at the
744 * currently focused position, for example.
747 Con *con_descend_focused(Con *con) {
749 while (!TAILQ_EMPTY(&(next->focus_head)))
750 next = TAILQ_FIRST(&(next->focus_head));
755 * Returns the focused con inside this client, descending the tree as far as
756 * possible. This comes in handy when attaching a con to a workspace at the
757 * currently focused position, for example.
759 * Works like con_descend_focused but considers only tiling cons.
762 Con *con_descend_tiling_focused(Con *con) {
768 TAILQ_FOREACH(child, &(next->focus_head), focused) {
769 if (child->type == CT_FLOATING_CON)
775 } while (before != next);
781 * Returns a "relative" Rect which contains the amount of pixels that need to
782 * be added to the original Rect to get the final position (obviously the
783 * amount of pixels for normal, 1pixel and borderless are different).
786 Rect con_border_style_rect(Con *con) {
787 switch (con_border_style(con)) {
789 return (Rect){2, 0, -(2 * 2), -2};
792 return (Rect){1, 1, -2, -2};
795 return (Rect){0, 0, 0, 0};
803 * Use this function to get a container’s border style. This is important
804 * because when inside a stack, the border style is always BS_NORMAL.
805 * For tabbed mode, the same applies, with one exception: when the container is
806 * borderless and the only element in the tabbed container, the border is not
809 * For children of a CT_DOCKAREA, the border style is always none.
812 int con_border_style(Con *con) {
813 Con *fs = con_get_fullscreen_con(con->parent, CF_OUTPUT);
815 DLOG("this one is fullscreen! overriding BS_NONE\n");
819 if (con->parent->layout == L_STACKED)
820 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
822 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
823 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
825 if (con->parent->type == CT_DOCKAREA)
828 return con->border_style;
832 * This function changes the layout of a given container. Use it to handle
833 * special cases like changing a whole workspace to stacked/tabbed (creates a
834 * new split container before).
837 void con_set_layout(Con *con, int layout) {
838 /* When the container type is CT_WORKSPACE, the user wants to change the
839 * whole workspace into stacked/tabbed mode. To do this and still allow
840 * intuitive operations (like level-up and then opening a new window), we
841 * need to create a new split container. */
842 if (con->type == CT_WORKSPACE) {
843 DLOG("Creating new split container\n");
844 /* 1: create a new split container */
845 Con *new = con_new(NULL, NULL);
848 /* 2: set the requested layout on the split con */
849 new->layout = layout;
851 /* 3: While the layout is irrelevant in stacked/tabbed mode, it needs
852 * to be set. Otherwise, this con will not be interpreted as a split
854 if (config.default_orientation == NO_ORIENTATION) {
855 new->orientation = (con->rect.height > con->rect.width) ? VERT : HORIZ;
857 new->orientation = config.default_orientation;
860 Con *old_focused = TAILQ_FIRST(&(con->focus_head));
861 if (old_focused == TAILQ_END(&(con->focus_head)))
864 /* 4: move the existing cons of this workspace below the new con */
865 DLOG("Moving cons\n");
867 while (!TAILQ_EMPTY(&(con->nodes_head))) {
868 child = TAILQ_FIRST(&(con->nodes_head));
870 con_attach(child, new, true);
873 /* 4: attach the new split container to the workspace */
874 DLOG("Attaching new split to ws\n");
875 con_attach(new, con, false);
878 con_focus(old_focused);
885 con->layout = layout;
889 * Callback which will be called when removing a child from the given con.
890 * Kills the container if it is empty and replaces it with the child if there
891 * is exactly one child.
894 static void con_on_remove_child(Con *con) {
895 DLOG("on_remove_child\n");
897 /* Every container 'above' (in the hierarchy) the workspace content should
898 * not be closed when the last child was removed */
899 if (con->type == CT_WORKSPACE ||
900 con->type == CT_OUTPUT ||
901 con->type == CT_ROOT ||
902 con->type == CT_DOCKAREA) {
903 DLOG("not handling, type = %d\n", con->type);
907 /* TODO: check if this container would swallow any other client and
908 * don’t close it automatically. */
909 int children = con_num_children(con);
911 DLOG("Container empty, closing\n");
912 tree_close(con, DONT_KILL_WINDOW, false);
918 * Determines the minimum size of the given con by looking at its children (for
919 * split/stacked/tabbed cons). Will be called when resizing floating cons
922 Rect con_minimum_size(Con *con) {
923 DLOG("Determining minimum size for con %p\n", con);
925 if (con_is_leaf(con)) {
926 DLOG("leaf node, returning 75x50\n");
927 return (Rect){ 0, 0, 75, 50 };
930 if (con->type == CT_FLOATING_CON) {
931 DLOG("floating con\n");
932 Con *child = TAILQ_FIRST(&(con->nodes_head));
933 return con_minimum_size(child);
936 if (con->layout == L_STACKED || con->layout == L_TABBED) {
937 uint32_t max_width = 0, max_height = 0, deco_height = 0;
939 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
940 Rect min = con_minimum_size(child);
941 deco_height += child->deco_rect.height;
942 max_width = max(max_width, min.width);
943 max_height = max(max_height, min.height);
945 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
946 max_width, max_height, deco_height);
947 return (Rect){ 0, 0, max_width, max_height + deco_height };
950 /* For horizontal/vertical split containers we sum up the width (h-split)
951 * or height (v-split) and use the maximum of the height (h-split) or width
952 * (v-split) as minimum size. */
953 if (con->orientation == HORIZ || con->orientation == VERT) {
954 uint32_t width = 0, height = 0;
956 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
957 Rect min = con_minimum_size(child);
958 if (con->orientation == HORIZ) {
960 height = max(height, min.height);
962 height += min.height;
963 width = max(width, min.width);
966 DLOG("split container, returning width = %d x height = %d\n", width, height);
967 return (Rect){ 0, 0, width, height };
970 ELOG("Unhandled case, type = %d, layout = %d, orientation = %d\n",
971 con->type, con->layout, con->orientation);