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 true if this node accepts a window (if the node swallows windows,
289 * it might already have swallowed enough and cannot hold any more).
292 bool con_accepts_window(Con *con) {
293 /* 1: workspaces never accept direct windows */
294 if (con->type == CT_WORKSPACE)
297 if (con_is_split(con)) {
298 DLOG("container %p does not accept windows, it is a split container.\n", con);
302 /* TODO: if this is a swallowing container, we need to check its max_clients */
303 return (con->window == NULL);
307 * Gets the output container (first container with CT_OUTPUT in hierarchy) this
311 Con *con_get_output(Con *con) {
313 while (result != NULL && result->type != CT_OUTPUT)
314 result = result->parent;
315 /* We must be able to get an output because focus can never be set higher
316 * in the tree (root node cannot be focused). */
317 assert(result != NULL);
322 * Gets the workspace container this node is on.
325 Con *con_get_workspace(Con *con) {
327 while (result != NULL && result->type != CT_WORKSPACE)
328 result = result->parent;
333 * Searches parenst of the given 'con' until it reaches one with the specified
334 * 'orientation'. Aborts when it comes across a floating_con.
337 Con *con_parent_with_orientation(Con *con, orientation_t orientation) {
338 DLOG("Searching for parent of Con %p with orientation %d\n", con, orientation);
339 Con *parent = con->parent;
340 if (parent->type == CT_FLOATING_CON)
342 while (con_orientation(parent) != orientation) {
343 DLOG("Need to go one level further up\n");
344 parent = parent->parent;
345 /* Abort when we reach a floating con, or an output con */
347 (parent->type == CT_FLOATING_CON ||
348 parent->type == CT_OUTPUT ||
349 (parent->parent && parent->parent->type == CT_OUTPUT)))
354 DLOG("Result: %p\n", parent);
359 * helper data structure for the breadth-first-search in
360 * con_get_fullscreen_con()
366 TAILQ_ENTRY(bfs_entry) entries;
370 * Returns the first fullscreen node below this node.
373 Con *con_get_fullscreen_con(Con *con, fullscreen_mode_t fullscreen_mode) {
374 Con *current, *child;
376 /* TODO: is breadth-first-search really appropriate? (check as soon as
377 * fullscreen levels and fullscreen for containers is implemented) */
378 TAILQ_HEAD(bfs_head, bfs_entry) bfs_head = TAILQ_HEAD_INITIALIZER(bfs_head);
379 struct bfs_entry *entry = smalloc(sizeof(struct bfs_entry));
381 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
383 while (!TAILQ_EMPTY(&bfs_head)) {
384 entry = TAILQ_FIRST(&bfs_head);
385 current = entry->con;
386 if (current != con && current->fullscreen_mode == fullscreen_mode) {
387 /* empty the queue */
388 while (!TAILQ_EMPTY(&bfs_head)) {
389 entry = TAILQ_FIRST(&bfs_head);
390 TAILQ_REMOVE(&bfs_head, entry, entries);
396 TAILQ_REMOVE(&bfs_head, entry, entries);
399 TAILQ_FOREACH(child, &(current->nodes_head), nodes) {
400 entry = smalloc(sizeof(struct bfs_entry));
402 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
405 TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
406 entry = smalloc(sizeof(struct bfs_entry));
408 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
416 * Returns true if the container is internal, such as __i3_scratch
419 bool con_is_internal(Con *con) {
420 return (con->name[0] == '_' && con->name[1] == '_');
424 * Returns true if the node is floating.
427 bool con_is_floating(Con *con) {
429 DLOG("checking if con %p is floating\n", con);
430 return (con->floating >= FLOATING_AUTO_ON);
434 * Checks if the given container is either floating or inside some floating
435 * container. It returns the FLOATING_CON container.
438 Con *con_inside_floating(Con *con) {
440 if (con->type == CT_FLOATING_CON)
443 if (con->floating >= FLOATING_AUTO_ON)
446 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
449 return con_inside_floating(con->parent);
453 * Checks if the given container is inside a focused container.
456 bool con_inside_focused(Con *con) {
461 return con_inside_focused(con->parent);
465 * Returns the container with the given client window ID or NULL if no such
469 Con *con_by_window_id(xcb_window_t window) {
471 TAILQ_FOREACH(con, &all_cons, all_cons)
472 if (con->window != NULL && con->window->id == window)
478 * Returns the container with the given frame ID or NULL if no such container
482 Con *con_by_frame_id(xcb_window_t frame) {
484 TAILQ_FOREACH(con, &all_cons, all_cons)
485 if (con->frame == frame)
491 * Returns the container with the given mark or NULL if no such container
495 Con *con_by_mark(const char *mark) {
497 TAILQ_FOREACH(con, &all_cons, all_cons) {
498 if (con->mark != NULL && strcmp(con->mark, mark) == 0)
506 * Returns the first container below 'con' which wants to swallow this window
510 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
513 //DLOG("searching con for window %p starting at con %p\n", window, con);
514 //DLOG("class == %s\n", window->class_class);
516 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
517 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
518 if (!match_matches_window(match, window))
520 if (store_match != NULL)
521 *store_match = match;
524 Con *result = con_for_window(child, window, store_match);
529 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
530 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
531 if (!match_matches_window(match, window))
533 if (store_match != NULL)
534 *store_match = match;
537 Con *result = con_for_window(child, window, store_match);
546 * Returns the number of children of this container.
549 int con_num_children(Con *con) {
553 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
560 * Updates the percent attribute of the children of the given container. This
561 * function needs to be called when a window is added or removed from a
565 void con_fix_percent(Con *con) {
567 int children = con_num_children(con);
569 // calculate how much we have distributed and how many containers
570 // with a percentage set we have
572 int children_with_percent = 0;
573 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
574 if (child->percent > 0.0) {
575 total += child->percent;
576 ++children_with_percent;
580 // if there were children without a percentage set, set to a value that
581 // will make those children proportional to all others
582 if (children_with_percent != children) {
583 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
584 if (child->percent <= 0.0) {
585 if (children_with_percent == 0)
586 total += (child->percent = 1.0);
588 total += (child->percent = total / children_with_percent);
593 // if we got a zero, just distribute the space equally, otherwise
594 // distribute according to the proportions we got
596 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
597 child->percent = 1.0 / children;
598 } else if (total != 1.0) {
599 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
600 child->percent /= total;
605 * Toggles fullscreen mode for the given container. If there already is a
606 * fullscreen container on this workspace, fullscreen will be disabled and then
607 * enabled for the container the user wants to have in fullscreen mode.
610 void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
611 if (con->type == CT_WORKSPACE) {
612 DLOG("You cannot make a workspace fullscreen.\n");
616 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
618 if (con->fullscreen_mode == CF_NONE)
619 con_enable_fullscreen(con, fullscreen_mode);
621 con_disable_fullscreen(con);
625 * Sets the specified fullscreen mode for the given container, sends the
626 * “fullscreen_mode” event and changes the XCB fullscreen property of the
627 * container’s window, if any.
630 static void con_set_fullscreen_mode(Con *con, fullscreen_mode_t fullscreen_mode) {
631 con->fullscreen_mode = fullscreen_mode;
633 DLOG("mode now: %d\n", con->fullscreen_mode);
635 /* Send an ipc window "fullscreen_mode" event */
636 ipc_send_window_event("fullscreen_mode", con);
638 /* update _NET_WM_STATE if this container has a window */
639 /* TODO: when a window is assigned to a container which is already
640 * fullscreened, this state needs to be pushed to the client, too */
641 if (con->window == NULL)
645 unsigned int num = 0;
647 if (con->fullscreen_mode != CF_NONE)
648 values[num++] = A__NET_WM_STATE_FULLSCREEN;
650 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id,
651 A__NET_WM_STATE, XCB_ATOM_ATOM, 32, num, values);
655 * Enables fullscreen mode for the given container, if necessary.
657 * If the container’s mode is already CF_OUTPUT or CF_GLOBAL, the container is
658 * kept fullscreen but its mode is set to CF_GLOBAL and CF_OUTPUT,
661 * Other fullscreen containers will be disabled first, if they hide the new
665 void con_enable_fullscreen(Con *con, fullscreen_mode_t fullscreen_mode) {
666 if (con->type == CT_WORKSPACE) {
667 DLOG("You cannot make a workspace fullscreen.\n");
671 assert(fullscreen_mode == CF_GLOBAL || fullscreen_mode == CF_OUTPUT);
673 if (fullscreen_mode == CF_GLOBAL)
674 DLOG("enabling global fullscreen for %p / %s\n", con, con->name);
676 DLOG("enabling fullscreen for %p / %s\n", con, con->name);
678 if (con->fullscreen_mode == fullscreen_mode) {
679 DLOG("fullscreen already enabled for %p / %s\n", con, con->name);
683 Con *con_ws = con_get_workspace(con);
685 /* Disable any fullscreen container that would conflict the new one. */
686 Con *fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
687 if (fullscreen == NULL)
688 fullscreen = con_get_fullscreen_con(con_ws, CF_OUTPUT);
689 if (fullscreen != NULL)
690 con_disable_fullscreen(fullscreen);
692 /* Set focus to new fullscreen container. Unless in global fullscreen mode
693 * and on another workspace restore focus afterwards.
694 * Switch to the container’s workspace if mode is global. */
695 Con *cur_ws = con_get_workspace(focused);
696 Con *old_focused = focused;
697 if (fullscreen_mode == CF_GLOBAL && cur_ws != con_ws)
698 workspace_show(con_ws);
700 if (fullscreen_mode != CF_GLOBAL && cur_ws != con_ws)
701 con_focus(old_focused);
703 con_set_fullscreen_mode(con, fullscreen_mode);
707 * Disables fullscreen mode for the given container regardless of the mode, if
711 void con_disable_fullscreen(Con *con) {
712 if (con->type == CT_WORKSPACE) {
713 DLOG("You cannot make a workspace fullscreen.\n");
717 DLOG("disabling fullscreen for %p / %s\n", con, con->name);
719 if (con->fullscreen_mode == CF_NONE) {
720 DLOG("fullscreen already disabled for %p / %s\n", con, con->name);
724 con_set_fullscreen_mode(con, CF_NONE);
727 static bool _con_move_to_con(Con *con, Con *target, bool behind_focused, bool fix_coordinates, bool dont_warp) {
728 Con *orig_target = target;
730 /* Prevent moving if this would violate the fullscreen focus restrictions. */
731 Con *target_ws = con_get_workspace(target);
732 if (!con_fullscreen_permits_focusing(target_ws)) {
733 LOG("Cannot move out of a fullscreen container.\n");
737 if (con_is_floating(con)) {
738 DLOG("Container is floating, using parent instead.\n");
742 Con *source_ws = con_get_workspace(con);
744 if (con->type == CT_WORKSPACE) {
745 /* Re-parent all of the old workspace's floating windows. */
747 while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
748 child = TAILQ_FIRST(&(source_ws->floating_head));
749 con_move_to_workspace(child, target_ws, true, true);
752 /* If there are no non-floating children, ignore the workspace. */
753 if (con_is_leaf(con))
756 con = workspace_encapsulate(con);
758 ELOG("Workspace failed to move its contents into a container!\n");
763 /* Save the urgency state so that we can restore it. */
764 bool urgent = con->urgent;
766 /* Save the current workspace. So we can call workspace_show() by the end
767 * of this function. */
768 Con *current_ws = con_get_workspace(focused);
770 Con *source_output = con_get_output(con),
771 *dest_output = con_get_output(target_ws);
773 /* 1: save the container which is going to be focused after the current
774 * container is moved away */
775 Con *focus_next = con_next_focused(con);
777 /* 2: we go up one level, but only when target is a normal container */
778 if (target->type != CT_WORKSPACE) {
779 DLOG("target originally = %p / %s / type %d\n", target, target->name, target->type);
780 target = target->parent;
783 /* 3: if the target container is floating, we get the workspace instead.
784 * Only tiling windows need to get inserted next to the current container.
786 Con *floatingcon = con_inside_floating(target);
787 if (floatingcon != NULL) {
788 DLOG("floatingcon, going up even further\n");
789 target = floatingcon->parent;
792 if (con->type == CT_FLOATING_CON) {
793 Con *ws = con_get_workspace(target);
794 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
798 if (source_output != dest_output) {
799 /* Take the relative coordinates of the current output, then add them
800 * to the coordinate space of the correct output */
801 if (fix_coordinates && con->type == CT_FLOATING_CON) {
802 floating_fix_coordinates(con, &(source_output->rect), &(dest_output->rect));
804 DLOG("Not fixing coordinates, fix_coordinates flag = %d\n", fix_coordinates);
806 /* If moving to a visible workspace, call show so it can be considered
807 * focused. Must do before attaching because workspace_show checks to see
808 * if focused container is in its area. */
809 if (workspace_is_visible(target_ws)) {
810 workspace_show(target_ws);
812 /* Don’t warp if told so (when dragging floating windows with the
813 * mouse for example) */
817 x_set_warp_to(&(con->rect));
821 /* If moving a fullscreen container and the destination already has a
822 * fullscreen window on it, un-fullscreen the target's fullscreen con. */
823 Con *fullscreen = con_get_fullscreen_con(target_ws, CF_OUTPUT);
824 if (con->fullscreen_mode != CF_NONE && fullscreen != NULL) {
825 con_toggle_fullscreen(fullscreen, CF_OUTPUT);
829 DLOG("Re-attaching container to %p / %s\n", target, target->name);
830 /* 4: re-attach the con to the parent of this focused container */
831 Con *parent = con->parent;
833 _con_attach(con, target, behind_focused ? NULL : orig_target, !behind_focused);
835 /* 5: fix the percentages */
836 con_fix_percent(parent);
838 con_fix_percent(target);
840 /* 6: focus the con on the target workspace, but only within that
841 * workspace, that is, don’t move focus away if the target workspace is
843 * We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
844 * we don’t focus when there is a fullscreen con on that workspace. */
845 if (!con_is_internal(target_ws) && !fullscreen) {
846 /* We need to save the focused workspace on the output in case the
847 * new workspace is hidden and it's necessary to immediately switch
848 * back to the originally-focused workspace. */
849 Con *old_focus = TAILQ_FIRST(&(output_get_content(dest_output)->focus_head));
850 con_focus(con_descend_focused(con));
852 /* Restore focus if the output's focused workspace has changed. */
853 if (con_get_workspace(focused) != old_focus)
854 con_focus(old_focus);
857 /* 7: when moving to another workspace, we leave the focus on the current
858 * workspace. (see also #809) */
860 /* Descend focus stack in case focus_next is a workspace which can
861 * occur if we move to the same workspace. Also show current workspace
862 * to ensure it is focused. */
863 workspace_show(current_ws);
865 /* Set focus only if con was on current workspace before moving.
866 * Otherwise we would give focus to some window on different workspace. */
867 if (source_ws == current_ws)
868 con_focus(con_descend_focused(focus_next));
870 /* 8. If anything within the container is associated with a startup sequence,
871 * delete it so child windows won't be created on the old workspace. */
872 struct Startup_Sequence *sequence;
873 xcb_get_property_cookie_t cookie;
874 xcb_get_property_reply_t *startup_id_reply;
876 if (!con_is_leaf(con)) {
878 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
882 cookie = xcb_get_property(conn, false, child->window->id,
883 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
884 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
886 sequence = startup_sequence_get(child->window, startup_id_reply, true);
887 if (sequence != NULL)
888 startup_sequence_delete(sequence);
893 cookie = xcb_get_property(conn, false, con->window->id,
894 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
895 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
897 sequence = startup_sequence_get(con->window, startup_id_reply, true);
898 if (sequence != NULL)
899 startup_sequence_delete(sequence);
902 CALL(parent, on_remove_child);
904 /* 9. If the container was marked urgent, move the urgency hint. */
906 workspace_update_urgent_flag(source_ws);
907 con_set_urgency(con, true);
910 ipc_send_window_event("move", con);
915 * Moves the given container to the given mark.
918 bool con_move_to_mark(Con *con, const char *mark) {
919 Con *target = con_by_mark(mark);
920 if (target == NULL) {
921 DLOG("found no container with mark \"%s\"\n", mark);
925 /* For floating target containers, we just send the window to the same workspace. */
926 if (con_is_floating(target)) {
927 DLOG("target container is floating, moving container to target's workspace.\n");
928 con_move_to_workspace(con, con_get_workspace(target), true, false);
932 /* For split containers, we use the currently focused container within it.
933 * This allows setting marks on, e.g., tabbed containers which will move
934 * con to a new tab behind the focused tab. */
935 if (con_is_split(target)) {
936 DLOG("target is a split container, descending to the currently focused child.\n");
937 target = TAILQ_FIRST(&(target->focus_head));
941 DLOG("cannot move the container to itself, aborting.\n");
945 return _con_move_to_con(con, target, false, true, false);
949 * Moves the given container to the currently focused container on the given
952 * The fix_coordinates flag will translate the current coordinates (offset from
953 * the monitor position basically) to appropriate coordinates on the
954 * destination workspace.
955 * Not enabling this behaviour comes in handy when this function gets called by
956 * floating_maybe_reassign_ws, which will only "move" a floating window when it
957 * *already* changed its coordinates to a different output.
959 * The dont_warp flag disables pointer warping and will be set when this
960 * function is called while dragging a floating window.
962 * TODO: is there a better place for this function?
965 void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp) {
966 assert(workspace->type == CT_WORKSPACE);
968 Con *source_ws = con_get_workspace(con);
969 if (workspace == source_ws) {
970 DLOG("Not moving, already there\n");
974 Con *target = con_descend_focused(workspace);
975 _con_move_to_con(con, target, true, fix_coordinates, dont_warp);
979 * Returns the orientation of the given container (for stacked containers,
980 * vertical orientation is used regardless of the actual orientation of the
984 orientation_t con_orientation(Con *con) {
985 switch (con->layout) {
987 /* stacking containers behave like they are in vertical orientation */
992 /* tabbed containers behave like they are in vertical orientation */
997 DLOG("Someone called con_orientation() on a con with L_DEFAULT, this is a bug in the code.\n");
1003 DLOG("con_orientation() called on dockarea/output (%d) container %p\n", con->layout, con);
1008 DLOG("con_orientation() ran into default\n");
1014 * Returns the container which will be focused next when the given container
1015 * is not available anymore. Called in tree_close and con_move_to_workspace
1016 * to properly restore focus.
1019 Con *con_next_focused(Con *con) {
1021 /* floating containers are attached to a workspace, so we focus either the
1022 * next floating container (if any) or the workspace itself. */
1023 if (con->type == CT_FLOATING_CON) {
1024 DLOG("selecting next for CT_FLOATING_CON\n");
1025 next = TAILQ_NEXT(con, floating_windows);
1026 DLOG("next = %p\n", next);
1028 next = TAILQ_PREV(con, floating_head, floating_windows);
1029 DLOG("using prev, next = %p\n", next);
1032 Con *ws = con_get_workspace(con);
1034 DLOG("no more floating containers for next = %p, restoring workspace focus\n", next);
1035 while (next != TAILQ_END(&(ws->focus_head)) && !TAILQ_EMPTY(&(next->focus_head))) {
1036 next = TAILQ_FIRST(&(next->focus_head));
1038 DLOG("skipping container itself, we want the next client\n");
1039 next = TAILQ_NEXT(next, focused);
1042 if (next == TAILQ_END(&(ws->focus_head))) {
1043 DLOG("Focus list empty, returning ws\n");
1047 /* Instead of returning the next CT_FLOATING_CON, we descend it to
1048 * get an actual window to focus. */
1049 next = con_descend_focused(next);
1054 /* dock clients cannot be focused, so we focus the workspace instead */
1055 if (con->parent->type == CT_DOCKAREA) {
1056 DLOG("selecting workspace for dock client\n");
1057 return con_descend_focused(output_get_content(con->parent->parent));
1060 /* if 'con' is not the first entry in the focus stack, use the first one as
1061 * it’s currently focused already */
1062 Con *first = TAILQ_FIRST(&(con->parent->focus_head));
1064 DLOG("Using first entry %p\n", first);
1067 /* try to focus the next container on the same level as this one or fall
1068 * back to its parent */
1069 if (!(next = TAILQ_NEXT(con, focused)))
1073 /* now go down the focus stack as far as
1074 * possible, excluding the current container */
1075 while (!TAILQ_EMPTY(&(next->focus_head)) &&
1076 TAILQ_FIRST(&(next->focus_head)) != con)
1077 next = TAILQ_FIRST(&(next->focus_head));
1083 * Get the next/previous container in the specified orientation. This may
1084 * travel up until it finds a container with suitable orientation.
1087 Con *con_get_next(Con *con, char way, orientation_t orientation) {
1088 DLOG("con_get_next(way=%c, orientation=%d)\n", way, orientation);
1089 /* 1: get the first parent with the same orientation */
1091 while (con_orientation(cur->parent) != orientation) {
1092 DLOG("need to go one level further up\n");
1093 if (cur->parent->type == CT_WORKSPACE) {
1094 LOG("that's a workspace, we can't go further up\n");
1100 /* 2: chose next (or previous) */
1103 next = TAILQ_NEXT(cur, nodes);
1104 /* if we are at the end of the list, we need to wrap */
1105 if (next == TAILQ_END(&(parent->nodes_head)))
1108 next = TAILQ_PREV(cur, nodes_head, nodes);
1109 /* if we are at the end of the list, we need to wrap */
1110 if (next == TAILQ_END(&(cur->nodes_head)))
1113 DLOG("next = %p\n", next);
1119 * Returns the focused con inside this client, descending the tree as far as
1120 * possible. This comes in handy when attaching a con to a workspace at the
1121 * currently focused position, for example.
1124 Con *con_descend_focused(Con *con) {
1126 while (next != focused && !TAILQ_EMPTY(&(next->focus_head)))
1127 next = TAILQ_FIRST(&(next->focus_head));
1132 * Returns the focused con inside this client, descending the tree as far as
1133 * possible. This comes in handy when attaching a con to a workspace at the
1134 * currently focused position, for example.
1136 * Works like con_descend_focused but considers only tiling cons.
1139 Con *con_descend_tiling_focused(Con *con) {
1143 if (next == focused)
1147 TAILQ_FOREACH(child, &(next->focus_head), focused) {
1148 if (child->type == CT_FLOATING_CON)
1154 } while (before != next && next != focused);
1159 * Returns the leftmost, rightmost, etc. container in sub-tree. For example, if
1160 * direction is D_LEFT, then we return the rightmost container and if direction
1161 * is D_RIGHT, we return the leftmost container. This is because if we are
1162 * moving D_LEFT, and thus want the rightmost container.
1165 Con *con_descend_direction(Con *con, direction_t direction) {
1168 int orientation = con_orientation(con);
1169 DLOG("con_descend_direction(%p, orientation %d, direction %d)\n", con, orientation, direction);
1170 if (direction == D_LEFT || direction == D_RIGHT) {
1171 if (orientation == HORIZ) {
1172 /* If the direction is horizontal, we can use either the first
1173 * (D_RIGHT) or the last con (D_LEFT) */
1174 if (direction == D_RIGHT)
1175 most = TAILQ_FIRST(&(con->nodes_head));
1177 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1178 } else if (orientation == VERT) {
1179 /* Wrong orientation. We use the last focused con. Within that con,
1180 * we recurse to chose the left/right con or at least the last
1182 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1183 if (current->type != CT_FLOATING_CON) {
1189 /* If the con has no orientation set, it’s not a split container
1190 * but a container with a client window, so stop recursing */
1195 if (direction == D_UP || direction == D_DOWN) {
1196 if (orientation == VERT) {
1197 /* If the direction is vertical, we can use either the first
1198 * (D_DOWN) or the last con (D_UP) */
1199 if (direction == D_UP)
1200 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1202 most = TAILQ_FIRST(&(con->nodes_head));
1203 } else if (orientation == HORIZ) {
1204 /* Wrong orientation. We use the last focused con. Within that con,
1205 * we recurse to chose the top/bottom con or at least the last
1207 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1208 if (current->type != CT_FLOATING_CON) {
1214 /* If the con has no orientation set, it’s not a split container
1215 * but a container with a client window, so stop recursing */
1222 return con_descend_direction(most, direction);
1226 * Returns a "relative" Rect which contains the amount of pixels that need to
1227 * be added to the original Rect to get the final position (obviously the
1228 * amount of pixels for normal, 1pixel and borderless are different).
1231 Rect con_border_style_rect(Con *con) {
1232 adjacent_t borders_to_hide = ADJ_NONE;
1233 int border_width = con->current_border_width;
1234 DLOG("The border width for con is set to: %d\n", con->current_border_width);
1236 if (con->current_border_width < 0) {
1237 if (con_is_floating(con)) {
1238 border_width = config.default_floating_border_width;
1240 border_width = config.default_border_width;
1243 DLOG("Effective border width is set to: %d\n", border_width);
1244 /* Shortcut to avoid calling con_adjacent_borders() on dock containers. */
1245 int border_style = con_border_style(con);
1246 if (border_style == BS_NONE)
1247 return (Rect){0, 0, 0, 0};
1248 if (border_style == BS_NORMAL) {
1249 result = (Rect){border_width, 0, -(2 * border_width), -(border_width)};
1251 result = (Rect){border_width, border_width, -(2 * border_width), -(2 * border_width)};
1254 borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
1255 if (borders_to_hide & ADJ_LEFT_SCREEN_EDGE) {
1256 result.x -= border_width;
1257 result.width += border_width;
1259 if (borders_to_hide & ADJ_RIGHT_SCREEN_EDGE) {
1260 result.width += border_width;
1262 if (borders_to_hide & ADJ_UPPER_SCREEN_EDGE && (border_style != BS_NORMAL)) {
1263 result.y -= border_width;
1264 result.height += border_width;
1266 if (borders_to_hide & ADJ_LOWER_SCREEN_EDGE) {
1267 result.height += border_width;
1273 * Returns adjacent borders of the window. We need this if hide_edge_borders is
1276 adjacent_t con_adjacent_borders(Con *con) {
1277 adjacent_t result = ADJ_NONE;
1278 /* Floating windows are never adjacent to any other window, so
1279 don’t hide their border(s). This prevents bug #998. */
1280 if (con_is_floating(con))
1283 Con *workspace = con_get_workspace(con);
1284 if (con->rect.x == workspace->rect.x)
1285 result |= ADJ_LEFT_SCREEN_EDGE;
1286 if (con->rect.x + con->rect.width == workspace->rect.x + workspace->rect.width)
1287 result |= ADJ_RIGHT_SCREEN_EDGE;
1288 if (con->rect.y == workspace->rect.y)
1289 result |= ADJ_UPPER_SCREEN_EDGE;
1290 if (con->rect.y + con->rect.height == workspace->rect.y + workspace->rect.height)
1291 result |= ADJ_LOWER_SCREEN_EDGE;
1296 * Use this function to get a container’s border style. This is important
1297 * because when inside a stack, the border style is always BS_NORMAL.
1298 * For tabbed mode, the same applies, with one exception: when the container is
1299 * borderless and the only element in the tabbed container, the border is not
1302 * For children of a CT_DOCKAREA, the border style is always none.
1305 int con_border_style(Con *con) {
1306 Con *fs = con_get_fullscreen_con(con->parent, CF_OUTPUT);
1308 DLOG("this one is fullscreen! overriding BS_NONE\n");
1312 if (con->parent->layout == L_STACKED)
1313 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1315 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
1316 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1318 if (con->parent->type == CT_DOCKAREA)
1321 return con->border_style;
1325 * Sets the given border style on con, correctly keeping the position/size of a
1329 void con_set_border_style(Con *con, int border_style, int border_width) {
1330 /* Handle the simple case: non-floating containerns */
1331 if (!con_is_floating(con)) {
1332 con->border_style = border_style;
1333 con->current_border_width = border_width;
1337 /* For floating containers, we want to keep the position/size of the
1338 * *window* itself. We first add the border pixels to con->rect to make
1339 * con->rect represent the absolute position of the window (same for
1340 * parent). Then, we change the border style and subtract the new border
1341 * pixels. For the parent, we do the same also for the decoration. */
1342 DLOG("This is a floating container\n");
1344 Con *parent = con->parent;
1345 Rect bsr = con_border_style_rect(con);
1346 int deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1348 con->rect = rect_add(con->rect, bsr);
1349 parent->rect = rect_add(parent->rect, bsr);
1350 parent->rect.y += deco_height;
1351 parent->rect.height -= deco_height;
1353 /* Change the border style, get new border/decoration values. */
1354 con->border_style = border_style;
1355 con->current_border_width = border_width;
1356 bsr = con_border_style_rect(con);
1357 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1359 con->rect = rect_sub(con->rect, bsr);
1360 parent->rect = rect_sub(parent->rect, bsr);
1361 parent->rect.y -= deco_height;
1362 parent->rect.height += deco_height;
1366 * This function changes the layout of a given container. Use it to handle
1367 * special cases like changing a whole workspace to stacked/tabbed (creates a
1368 * new split container before).
1371 void con_set_layout(Con *con, layout_t layout) {
1372 DLOG("con_set_layout(%p, %d), con->type = %d\n",
1373 con, layout, con->type);
1375 /* Users can focus workspaces, but not any higher in the hierarchy.
1376 * Focus on the workspace is a special case, since in every other case, the
1377 * user means "change the layout of the parent split container". */
1378 if (con->type != CT_WORKSPACE)
1381 /* We fill in last_split_layout when switching to a different layout
1382 * since there are many places in the code that don’t use
1383 * con_set_layout(). */
1384 if (con->layout == L_SPLITH || con->layout == L_SPLITV)
1385 con->last_split_layout = con->layout;
1387 /* When the container type is CT_WORKSPACE, the user wants to change the
1388 * whole workspace into stacked/tabbed mode. To do this and still allow
1389 * intuitive operations (like level-up and then opening a new window), we
1390 * need to create a new split container. */
1391 if (con->type == CT_WORKSPACE &&
1392 (layout == L_STACKED || layout == L_TABBED)) {
1393 if (con_num_children(con) == 0) {
1394 DLOG("Setting workspace_layout to %d\n", layout);
1395 con->workspace_layout = layout;
1397 DLOG("Creating new split container\n");
1398 /* 1: create a new split container */
1399 Con *new = con_new(NULL, NULL);
1402 /* 2: Set the requested layout on the split container and mark it as
1404 new->layout = layout;
1405 new->last_split_layout = con->last_split_layout;
1407 /* Save the container that was focused before we move containers
1408 * around, but only if the container is visible (otherwise focus
1409 * will be restored properly automatically when switching). */
1410 Con *old_focused = TAILQ_FIRST(&(con->focus_head));
1411 if (old_focused == TAILQ_END(&(con->focus_head)))
1413 if (old_focused != NULL &&
1414 !workspace_is_visible(con_get_workspace(old_focused)))
1417 /* 3: move the existing cons of this workspace below the new con */
1418 DLOG("Moving cons\n");
1420 while (!TAILQ_EMPTY(&(con->nodes_head))) {
1421 child = TAILQ_FIRST(&(con->nodes_head));
1423 con_attach(child, new, true);
1426 /* 4: attach the new split container to the workspace */
1427 DLOG("Attaching new split to ws\n");
1428 con_attach(new, con, false);
1431 con_focus(old_focused);
1433 tree_flatten(croot);
1435 con_force_split_parents_redraw(con);
1439 if (layout == L_DEFAULT) {
1440 /* Special case: the layout formerly known as "default" (in combination
1441 * with an orientation). Since we switched to splith/splitv layouts,
1442 * using the "default" layout (which "only" should happen when using
1443 * legacy configs) is using the last split layout (either splith or
1444 * splitv) in order to still do the same thing. */
1445 con->layout = con->last_split_layout;
1446 /* In case last_split_layout was not initialized… */
1447 if (con->layout == L_DEFAULT)
1448 con->layout = L_SPLITH;
1450 con->layout = layout;
1452 con_force_split_parents_redraw(con);
1456 * This function toggles the layout of a given container. toggle_mode can be
1457 * either 'default' (toggle only between stacked/tabbed/last_split_layout),
1458 * 'split' (toggle only between splitv/splith) or 'all' (toggle between all
1462 void con_toggle_layout(Con *con, const char *toggle_mode) {
1464 /* Users can focus workspaces, but not any higher in the hierarchy.
1465 * Focus on the workspace is a special case, since in every other case, the
1466 * user means "change the layout of the parent split container". */
1467 if (con->type != CT_WORKSPACE)
1468 parent = con->parent;
1469 DLOG("con_toggle_layout(%p, %s), parent = %p\n", con, toggle_mode, parent);
1471 if (strcmp(toggle_mode, "split") == 0) {
1472 /* Toggle between splits. When the current layout is not a split
1473 * layout, we just switch back to last_split_layout. Otherwise, we
1474 * change to the opposite split layout. */
1475 if (parent->layout != L_SPLITH && parent->layout != L_SPLITV)
1476 con_set_layout(con, parent->last_split_layout);
1478 if (parent->layout == L_SPLITH)
1479 con_set_layout(con, L_SPLITV);
1481 con_set_layout(con, L_SPLITH);
1484 if (parent->layout == L_STACKED)
1485 con_set_layout(con, L_TABBED);
1486 else if (parent->layout == L_TABBED) {
1487 if (strcmp(toggle_mode, "all") == 0)
1488 con_set_layout(con, L_SPLITH);
1490 con_set_layout(con, parent->last_split_layout);
1491 } else if (parent->layout == L_SPLITH || parent->layout == L_SPLITV) {
1492 if (strcmp(toggle_mode, "all") == 0) {
1493 /* When toggling through all modes, we toggle between
1494 * splith/splitv, whereas normally we just directly jump to
1496 if (parent->layout == L_SPLITH)
1497 con_set_layout(con, L_SPLITV);
1499 con_set_layout(con, L_STACKED);
1501 con_set_layout(con, L_STACKED);
1508 * Callback which will be called when removing a child from the given con.
1509 * Kills the container if it is empty and replaces it with the child if there
1510 * is exactly one child.
1513 static void con_on_remove_child(Con *con) {
1514 DLOG("on_remove_child\n");
1516 /* Every container 'above' (in the hierarchy) the workspace content should
1517 * not be closed when the last child was removed */
1518 if (con->type == CT_OUTPUT ||
1519 con->type == CT_ROOT ||
1520 con->type == CT_DOCKAREA ||
1521 (con->parent != NULL && con->parent->type == CT_OUTPUT)) {
1522 DLOG("not handling, type = %d, name = %s\n", con->type, con->name);
1526 /* For workspaces, close them only if they're not visible anymore */
1527 if (con->type == CT_WORKSPACE) {
1528 if (TAILQ_EMPTY(&(con->focus_head)) && !workspace_is_visible(con)) {
1529 LOG("Closing old workspace (%p / %s), it is empty\n", con, con->name);
1530 yajl_gen gen = ipc_marshal_workspace_event("empty", con, NULL);
1531 tree_close(con, DONT_KILL_WINDOW, false, false);
1533 const unsigned char *payload;
1535 y(get_buf, &payload, &length);
1536 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, (const char *)payload);
1543 con_force_split_parents_redraw(con);
1544 con->urgent = con_has_urgent_child(con);
1545 con_update_parents_urgency(con);
1547 /* TODO: check if this container would swallow any other client and
1548 * don’t close it automatically. */
1549 int children = con_num_children(con);
1550 if (children == 0) {
1551 DLOG("Container empty, closing\n");
1552 tree_close(con, DONT_KILL_WINDOW, false, false);
1558 * Determines the minimum size of the given con by looking at its children (for
1559 * split/stacked/tabbed cons). Will be called when resizing floating cons
1562 Rect con_minimum_size(Con *con) {
1563 DLOG("Determining minimum size for con %p\n", con);
1565 if (con_is_leaf(con)) {
1566 DLOG("leaf node, returning 75x50\n");
1567 return (Rect){0, 0, 75, 50};
1570 if (con->type == CT_FLOATING_CON) {
1571 DLOG("floating con\n");
1572 Con *child = TAILQ_FIRST(&(con->nodes_head));
1573 return con_minimum_size(child);
1576 if (con->layout == L_STACKED || con->layout == L_TABBED) {
1577 uint32_t max_width = 0, max_height = 0, deco_height = 0;
1579 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1580 Rect min = con_minimum_size(child);
1581 deco_height += child->deco_rect.height;
1582 max_width = max(max_width, min.width);
1583 max_height = max(max_height, min.height);
1585 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
1586 max_width, max_height, deco_height);
1587 return (Rect){0, 0, max_width, max_height + deco_height};
1590 /* For horizontal/vertical split containers we sum up the width (h-split)
1591 * or height (v-split) and use the maximum of the height (h-split) or width
1592 * (v-split) as minimum size. */
1593 if (con_is_split(con)) {
1594 uint32_t width = 0, height = 0;
1596 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1597 Rect min = con_minimum_size(child);
1598 if (con->layout == L_SPLITH) {
1600 height = max(height, min.height);
1602 height += min.height;
1603 width = max(width, min.width);
1606 DLOG("split container, returning width = %d x height = %d\n", width, height);
1607 return (Rect){0, 0, width, height};
1610 ELOG("Unhandled case, type = %d, layout = %d, split = %d\n",
1611 con->type, con->layout, con_is_split(con));
1616 * Returns true if changing the focus to con would be allowed considering
1617 * the fullscreen focus constraints. Specifically, if a fullscreen container or
1618 * any of its descendants is focused, this function returns true if and only if
1619 * focusing con would mean that focus would still be visible on screen, i.e.,
1620 * the newly focused container would not be obscured by a fullscreen container.
1622 * In the simplest case, if a fullscreen container or any of its descendants is
1623 * fullscreen, this functions returns true if con is the fullscreen container
1624 * itself or any of its descendants, as this means focus wouldn't escape the
1625 * boundaries of the fullscreen container.
1627 * In case the fullscreen container is of type CF_OUTPUT, this function returns
1628 * true if con is on a different workspace, as focus wouldn't be obscured by
1629 * the fullscreen container that is constrained to a different workspace.
1631 * Note that this same logic can be applied to moving containers. If a
1632 * container can be focused under the fullscreen focus constraints, it can also
1633 * become a parent or sibling to the currently focused container.
1636 bool con_fullscreen_permits_focusing(Con *con) {
1637 /* No focus, no problem. */
1641 /* Find the first fullscreen ascendent. */
1643 while (fs && fs->fullscreen_mode == CF_NONE)
1646 /* fs must be non-NULL since the workspace con doesn’t have CF_NONE and
1647 * there always has to be a workspace con in the hierarchy. */
1649 /* The most common case is we hit the workspace level. In this
1650 * situation, changing focus is also harmless. */
1651 assert(fs->fullscreen_mode != CF_NONE);
1652 if (fs->type == CT_WORKSPACE)
1655 /* Allow it if the container itself is the fullscreen container. */
1659 /* If fullscreen is per-output, the focus being in a different workspace is
1660 * sufficient to guarantee that change won't leave fullscreen in bad shape. */
1661 if (fs->fullscreen_mode == CF_OUTPUT &&
1662 con_get_workspace(con) != con_get_workspace(fs)) {
1666 /* Allow it only if the container to be focused is contained within the
1667 * current fullscreen container. */
1669 if (con->parent == fs)
1674 /* Focusing con would hide it behind a fullscreen window, disallow it. */
1680 * Checks if the given container has an urgent child.
1683 bool con_has_urgent_child(Con *con) {
1686 if (con_is_leaf(con))
1689 /* We are not interested in floating windows since they can only be
1690 * attached to a workspace → nodes_head instead of focus_head */
1691 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1692 if (con_has_urgent_child(child))
1700 * Make all parent containers urgent if con is urgent or clear the urgent flag
1701 * of all parent containers if there are no more urgent children left.
1704 void con_update_parents_urgency(Con *con) {
1705 Con *parent = con->parent;
1707 bool new_urgency_value = con->urgent;
1708 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
1709 if (new_urgency_value) {
1710 parent->urgent = true;
1712 /* We can only reset the urgency when the parent
1713 * has no other urgent children */
1714 if (!con_has_urgent_child(parent))
1715 parent->urgent = false;
1717 parent = parent->parent;
1722 * Set urgency flag to the container, all the parent containers and the workspace.
1725 void con_set_urgency(Con *con, bool urgent) {
1726 if (urgent && focused == con) {
1727 DLOG("Ignoring urgency flag for current client\n");
1731 const bool old_urgent = con->urgent;
1733 if (con->urgency_timer == NULL) {
1734 con->urgent = urgent;
1736 DLOG("Discarding urgency WM_HINT because timer is running\n");
1741 gettimeofday(&con->window->urgent, NULL);
1743 con->window->urgent.tv_sec = 0;
1744 con->window->urgent.tv_usec = 0;
1748 con_update_parents_urgency(con);
1751 /* Set the urgency flag on the workspace, if a workspace could be found
1752 * (for dock clients, that is not the case). */
1753 if ((ws = con_get_workspace(con)) != NULL)
1754 workspace_update_urgent_flag(ws);
1756 if (con->urgent != old_urgent) {
1757 LOG("Urgency flag changed to %d\n", con->urgent);
1758 ipc_send_window_event("urgent", con);
1763 * Create a string representing the subtree under con.
1766 char *con_get_tree_representation(Con *con) {
1767 /* this code works as follows:
1768 * 1) create a string with the layout type (D/V/H/T/S) and an opening bracket
1769 * 2) append the tree representation of the children to the string
1770 * 3) add closing bracket
1772 * The recursion ends when we hit a leaf, in which case we return the
1773 * class_instance of the contained window.
1776 /* end of recursion */
1777 if (con_is_leaf(con)) {
1779 return sstrdup("nowin");
1781 if (!con->window->class_instance)
1782 return sstrdup("noinstance");
1784 return sstrdup(con->window->class_instance);
1788 /* 1) add the Layout type to buf */
1789 if (con->layout == L_DEFAULT)
1790 buf = sstrdup("D[");
1791 else if (con->layout == L_SPLITV)
1792 buf = sstrdup("V[");
1793 else if (con->layout == L_SPLITH)
1794 buf = sstrdup("H[");
1795 else if (con->layout == L_TABBED)
1796 buf = sstrdup("T[");
1797 else if (con->layout == L_STACKED)
1798 buf = sstrdup("S[");
1800 ELOG("BUG: Code not updated to account for new layout type\n");
1804 /* 2) append representation of children */
1806 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1807 char *child_txt = con_get_tree_representation(child);
1810 sasprintf(&tmp_buf, "%s%s%s", buf,
1811 (TAILQ_FIRST(&(con->nodes_head)) == child ? "" : " "), child_txt);
1816 /* 3) close the brackets */
1818 sasprintf(&complete_buf, "%s]", buf);
1821 return complete_buf;