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(sizeof(Con));
40 new->on_remove_child = con_on_remove_child;
41 TAILQ_INSERT_TAIL(&all_cons, new, all_cons);
42 new->aspect_ratio = 0.0;
45 new->border_style = config.default_border;
46 new->current_border_width = -1;
48 new->depth = window->depth;
50 new->depth = XCB_COPY_FROM_PARENT;
51 DLOG("opening window\n");
53 TAILQ_INIT(&(new->floating_head));
54 TAILQ_INIT(&(new->nodes_head));
55 TAILQ_INIT(&(new->focus_head));
56 TAILQ_INIT(&(new->swallow_head));
59 con_attach(new, parent, false);
64 /* A wrapper for con_new_skeleton, to retain the old con_new behaviour
67 Con *con_new(Con *parent, i3Window *window) {
68 Con *new = con_new_skeleton(parent, window);
69 x_con_init(new, new->depth);
73 static void _con_attach(Con *con, Con *parent, Con *previous, bool ignore_focus) {
76 Con *current = previous;
77 struct nodes_head *nodes_head = &(parent->nodes_head);
78 struct focus_head *focus_head = &(parent->focus_head);
80 /* Workspaces are handled differently: they need to be inserted at the
82 if (con->type == CT_WORKSPACE) {
83 DLOG("it's a workspace. num = %d\n", con->num);
84 if (con->num == -1 || TAILQ_EMPTY(nodes_head)) {
85 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
87 current = TAILQ_FIRST(nodes_head);
88 if (con->num < current->num) {
89 /* we need to insert the container at the beginning */
90 TAILQ_INSERT_HEAD(nodes_head, con, nodes);
92 while (current->num != -1 && con->num > current->num) {
93 current = TAILQ_NEXT(current, nodes);
94 if (current == TAILQ_END(nodes_head)) {
99 /* we need to insert con after current, if current is not NULL */
101 TAILQ_INSERT_BEFORE(current, con, nodes);
103 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
106 goto add_to_focus_head;
109 if (con->type == CT_FLOATING_CON) {
110 DLOG("Inserting into floating containers\n");
111 TAILQ_INSERT_TAIL(&(parent->floating_head), con, floating_windows);
114 /* Get the first tiling container in focus stack */
115 TAILQ_FOREACH(loop, &(parent->focus_head), focused) {
116 if (loop->type == CT_FLOATING_CON)
123 /* When the container is not a split container (but contains a window)
124 * and is attached to a workspace, we check if the user configured a
125 * workspace_layout. This is done in workspace_attach_to, which will
126 * provide us with the container to which we should attach (either the
127 * workspace or a new split container with the configured
130 if (con->window != NULL &&
131 parent->type == CT_WORKSPACE &&
132 parent->workspace_layout != L_DEFAULT) {
133 DLOG("Parent is a workspace. Applying default layout...\n");
134 Con *target = workspace_attach_to(parent);
136 /* Attach the original con to this new split con instead */
137 nodes_head = &(target->nodes_head);
138 focus_head = &(target->focus_head);
139 con->parent = target;
145 /* Insert the container after the tiling container, if found.
146 * When adding to a CT_OUTPUT, just append one after another. */
147 if (current && parent->type != CT_OUTPUT) {
148 DLOG("Inserting con = %p after con %p\n", con, current);
149 TAILQ_INSERT_AFTER(nodes_head, current, con, nodes);
151 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
155 /* We insert to the TAIL because con_focus() will correct this.
156 * This way, we have the option to insert Cons without having
158 TAILQ_INSERT_TAIL(focus_head, con, focused);
159 con_force_split_parents_redraw(con);
163 * Attaches the given container to the given parent. This happens when moving
164 * a container or when inserting a new container at a specific place in the
167 * ignore_focus is to just insert the Con at the end (useful when creating a
168 * new split container *around* some containers, that is, detaching and
169 * attaching them in order without wanting to mess with the focus in between).
172 void con_attach(Con *con, Con *parent, bool ignore_focus) {
173 _con_attach(con, parent, NULL, ignore_focus);
177 * Detaches the given container from its current parent
180 void con_detach(Con *con) {
181 con_force_split_parents_redraw(con);
182 if (con->type == CT_FLOATING_CON) {
183 TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
184 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
186 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
187 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
192 * Sets input focus to the given container. Will be updated in X11 in the next
193 * run of x_push_changes().
196 void con_focus(Con *con) {
198 DLOG("con_focus = %p\n", con);
200 /* 1: set focused-pointer to the new con */
201 /* 2: exchange the position of the container in focus stack of the parent all the way up */
202 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
203 TAILQ_INSERT_HEAD(&(con->parent->focus_head), con, focused);
204 if (con->parent->parent != NULL)
205 con_focus(con->parent);
208 /* We can't blindly reset non-leaf containers since they might have
209 * other urgent children. Therefore we only reset leafs and propagate
210 * the changes upwards via con_update_parents_urgency() which does proper
211 * checks before resetting the urgency.
213 if (con->urgent && con_is_leaf(con)) {
215 con_update_parents_urgency(con);
216 workspace_update_urgent_flag(con_get_workspace(con));
217 ipc_send_window_event("urgent", con);
222 * Returns true when this node is a leaf node (has no children)
225 bool con_is_leaf(Con *con) {
226 return TAILQ_EMPTY(&(con->nodes_head));
230 * Returns true when this con is a leaf node with a managed X11 window (e.g.,
231 * excluding dock containers)
233 bool con_has_managed_window(Con *con) {
234 return (con != NULL && con->window != NULL && con->window->id != XCB_WINDOW_NONE && con_get_workspace(con) != NULL);
238 * Returns true if this node has regular or floating children.
241 bool con_has_children(Con *con) {
242 return (!con_is_leaf(con) || !TAILQ_EMPTY(&(con->floating_head)));
246 * Returns true if a container should be considered split.
249 bool con_is_split(Con *con) {
250 if (con_is_leaf(con))
253 switch (con->layout) {
264 * Returns true if this node accepts a window (if the node swallows windows,
265 * it might already have swallowed enough and cannot hold any more).
268 bool con_accepts_window(Con *con) {
269 /* 1: workspaces never accept direct windows */
270 if (con->type == CT_WORKSPACE)
273 if (con_is_split(con)) {
274 DLOG("container %p does not accept windows, it is a split container.\n", con);
278 /* TODO: if this is a swallowing container, we need to check its max_clients */
279 return (con->window == NULL);
283 * Gets the output container (first container with CT_OUTPUT in hierarchy) this
287 Con *con_get_output(Con *con) {
289 while (result != NULL && result->type != CT_OUTPUT)
290 result = result->parent;
291 /* We must be able to get an output because focus can never be set higher
292 * in the tree (root node cannot be focused). */
293 assert(result != NULL);
298 * Gets the workspace container this node is on.
301 Con *con_get_workspace(Con *con) {
303 while (result != NULL && result->type != CT_WORKSPACE)
304 result = result->parent;
309 * Searches parenst of the given 'con' until it reaches one with the specified
310 * 'orientation'. Aborts when it comes across a floating_con.
313 Con *con_parent_with_orientation(Con *con, orientation_t orientation) {
314 DLOG("Searching for parent of Con %p with orientation %d\n", con, orientation);
315 Con *parent = con->parent;
316 if (parent->type == CT_FLOATING_CON)
318 while (con_orientation(parent) != orientation) {
319 DLOG("Need to go one level further up\n");
320 parent = parent->parent;
321 /* Abort when we reach a floating con, or an output con */
323 (parent->type == CT_FLOATING_CON ||
324 parent->type == CT_OUTPUT ||
325 (parent->parent && parent->parent->type == CT_OUTPUT)))
330 DLOG("Result: %p\n", parent);
335 * helper data structure for the breadth-first-search in
336 * con_get_fullscreen_con()
342 TAILQ_ENTRY(bfs_entry) entries;
346 * Returns the first fullscreen node below this node.
349 Con *con_get_fullscreen_con(Con *con, fullscreen_mode_t fullscreen_mode) {
350 Con *current, *child;
352 /* TODO: is breadth-first-search really appropriate? (check as soon as
353 * fullscreen levels and fullscreen for containers is implemented) */
354 TAILQ_HEAD(bfs_head, bfs_entry) bfs_head = TAILQ_HEAD_INITIALIZER(bfs_head);
355 struct bfs_entry *entry = smalloc(sizeof(struct bfs_entry));
357 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
359 while (!TAILQ_EMPTY(&bfs_head)) {
360 entry = TAILQ_FIRST(&bfs_head);
361 current = entry->con;
362 if (current != con && current->fullscreen_mode == fullscreen_mode) {
363 /* empty the queue */
364 while (!TAILQ_EMPTY(&bfs_head)) {
365 entry = TAILQ_FIRST(&bfs_head);
366 TAILQ_REMOVE(&bfs_head, entry, entries);
372 TAILQ_REMOVE(&bfs_head, entry, entries);
375 TAILQ_FOREACH(child, &(current->nodes_head), nodes) {
376 entry = smalloc(sizeof(struct bfs_entry));
378 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
381 TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
382 entry = smalloc(sizeof(struct bfs_entry));
384 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
392 * Returns true if the container is internal, such as __i3_scratch
395 bool con_is_internal(Con *con) {
396 return (con->name[0] == '_' && con->name[1] == '_');
400 * Returns true if the node is floating.
403 bool con_is_floating(Con *con) {
405 DLOG("checking if con %p is floating\n", con);
406 return (con->floating >= FLOATING_AUTO_ON);
410 * Checks if the given container is either floating or inside some floating
411 * container. It returns the FLOATING_CON container.
414 Con *con_inside_floating(Con *con) {
416 if (con->type == CT_FLOATING_CON)
419 if (con->floating >= FLOATING_AUTO_ON)
422 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
425 return con_inside_floating(con->parent);
429 * Checks if the given container is inside a focused container.
432 bool con_inside_focused(Con *con) {
437 return con_inside_focused(con->parent);
441 * Returns the container with the given client window ID or NULL if no such
445 Con *con_by_window_id(xcb_window_t window) {
447 TAILQ_FOREACH(con, &all_cons, all_cons)
448 if (con->window != NULL && con->window->id == window)
454 * Returns the container with the given frame ID or NULL if no such container
458 Con *con_by_frame_id(xcb_window_t frame) {
460 TAILQ_FOREACH(con, &all_cons, all_cons)
461 if (con->frame == frame)
467 * Returns the container with the given mark or NULL if no such container
471 Con *con_by_mark(const char *mark) {
473 TAILQ_FOREACH(con, &all_cons, all_cons) {
474 if (con->mark != NULL && strcmp(con->mark, mark) == 0)
482 * Returns the first container below 'con' which wants to swallow this window
486 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
489 //DLOG("searching con for window %p starting at con %p\n", window, con);
490 //DLOG("class == %s\n", window->class_class);
492 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
493 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
494 if (!match_matches_window(match, window))
496 if (store_match != NULL)
497 *store_match = match;
500 Con *result = con_for_window(child, window, store_match);
505 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
506 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
507 if (!match_matches_window(match, window))
509 if (store_match != NULL)
510 *store_match = match;
513 Con *result = con_for_window(child, window, store_match);
522 * Returns the number of children of this container.
525 int con_num_children(Con *con) {
529 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
536 * Updates the percent attribute of the children of the given container. This
537 * function needs to be called when a window is added or removed from a
541 void con_fix_percent(Con *con) {
543 int children = con_num_children(con);
545 // calculate how much we have distributed and how many containers
546 // with a percentage set we have
548 int children_with_percent = 0;
549 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
550 if (child->percent > 0.0) {
551 total += child->percent;
552 ++children_with_percent;
556 // if there were children without a percentage set, set to a value that
557 // will make those children proportional to all others
558 if (children_with_percent != children) {
559 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
560 if (child->percent <= 0.0) {
561 if (children_with_percent == 0)
562 total += (child->percent = 1.0);
564 total += (child->percent = total / children_with_percent);
569 // if we got a zero, just distribute the space equally, otherwise
570 // distribute according to the proportions we got
572 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
573 child->percent = 1.0 / children;
574 } else if (total != 1.0) {
575 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
576 child->percent /= total;
581 * Toggles fullscreen mode for the given container. If there already is a
582 * fullscreen container on this workspace, fullscreen will be disabled and then
583 * enabled for the container the user wants to have in fullscreen mode.
586 void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
587 if (con->type == CT_WORKSPACE) {
588 DLOG("You cannot make a workspace fullscreen.\n");
592 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
594 if (con->fullscreen_mode == CF_NONE)
595 con_enable_fullscreen(con, fullscreen_mode);
597 con_disable_fullscreen(con);
601 * Sets the specified fullscreen mode for the given container, sends the
602 * “fullscreen_mode” event and changes the XCB fullscreen property of the
603 * container’s window, if any.
606 static void con_set_fullscreen_mode(Con *con, fullscreen_mode_t fullscreen_mode) {
607 con->fullscreen_mode = fullscreen_mode;
609 DLOG("mode now: %d\n", con->fullscreen_mode);
611 /* Send an ipc window "fullscreen_mode" event */
612 ipc_send_window_event("fullscreen_mode", con);
614 /* update _NET_WM_STATE if this container has a window */
615 /* TODO: when a window is assigned to a container which is already
616 * fullscreened, this state needs to be pushed to the client, too */
617 if (con->window == NULL)
621 unsigned int num = 0;
623 if (con->fullscreen_mode != CF_NONE)
624 values[num++] = A__NET_WM_STATE_FULLSCREEN;
626 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id,
627 A__NET_WM_STATE, XCB_ATOM_ATOM, 32, num, values);
631 * Enables fullscreen mode for the given container, if necessary.
633 * If the container’s mode is already CF_OUTPUT or CF_GLOBAL, the container is
634 * kept fullscreen but its mode is set to CF_GLOBAL and CF_OUTPUT,
637 * Other fullscreen containers will be disabled first, if they hide the new
641 void con_enable_fullscreen(Con *con, fullscreen_mode_t fullscreen_mode) {
642 if (con->type == CT_WORKSPACE) {
643 DLOG("You cannot make a workspace fullscreen.\n");
647 assert(fullscreen_mode == CF_GLOBAL || fullscreen_mode == CF_OUTPUT);
649 if (fullscreen_mode == CF_GLOBAL)
650 DLOG("enabling global fullscreen for %p / %s\n", con, con->name);
652 DLOG("enabling fullscreen for %p / %s\n", con, con->name);
654 if (con->fullscreen_mode == fullscreen_mode) {
655 DLOG("fullscreen already enabled for %p / %s\n", con, con->name);
659 Con *con_ws = con_get_workspace(con);
661 /* Disable any fullscreen container that would conflict the new one. */
662 Con *fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
663 if (fullscreen == NULL)
664 fullscreen = con_get_fullscreen_con(con_ws, CF_OUTPUT);
665 if (fullscreen != NULL)
666 con_disable_fullscreen(fullscreen);
668 /* Set focus to new fullscreen container. Unless in global fullscreen mode
669 * and on another workspace restore focus afterwards.
670 * Switch to the container’s workspace if mode is global. */
671 Con *cur_ws = con_get_workspace(focused);
672 Con *old_focused = focused;
673 if (fullscreen_mode == CF_GLOBAL && cur_ws != con_ws)
674 workspace_show(con_ws);
676 if (fullscreen_mode != CF_GLOBAL && cur_ws != con_ws)
677 con_focus(old_focused);
679 con_set_fullscreen_mode(con, fullscreen_mode);
683 * Disables fullscreen mode for the given container regardless of the mode, if
687 void con_disable_fullscreen(Con *con) {
688 if (con->type == CT_WORKSPACE) {
689 DLOG("You cannot make a workspace fullscreen.\n");
693 DLOG("disabling fullscreen for %p / %s\n", con, con->name);
695 if (con->fullscreen_mode == CF_NONE) {
696 DLOG("fullscreen already disabled for %p / %s\n", con, con->name);
700 con_set_fullscreen_mode(con, CF_NONE);
703 static bool _con_move_to_con(Con *con, Con *target, bool behind_focused, bool fix_coordinates, bool dont_warp) {
704 Con *orig_target = target;
706 /* Prevent moving if this would violate the fullscreen focus restrictions. */
707 Con *target_ws = con_get_workspace(target);
708 if (!con_fullscreen_permits_focusing(target_ws)) {
709 LOG("Cannot move out of a fullscreen container");
713 if (con_is_floating(con)) {
714 DLOG("Using FLOATINGCON instead\n");
718 Con *source_ws = con_get_workspace(con);
720 if (con->type == CT_WORKSPACE) {
721 /* Re-parent all of the old workspace's floating windows. */
723 while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
724 child = TAILQ_FIRST(&(source_ws->floating_head));
725 con_move_to_workspace(child, target_ws, true, true);
728 /* If there are no non-floating children, ignore the workspace. */
729 if (con_is_leaf(con))
732 con = workspace_encapsulate(con);
734 ELOG("Workspace failed to move its contents into a container!\n");
739 /* Save the urgency state so that we can restore it. */
740 bool urgent = con->urgent;
742 /* Save the current workspace. So we can call workspace_show() by the end
743 * of this function. */
744 Con *current_ws = con_get_workspace(focused);
746 Con *source_output = con_get_output(con),
747 *dest_output = con_get_output(target_ws);
749 /* 1: save the container which is going to be focused after the current
750 * container is moved away */
751 Con *focus_next = con_next_focused(con);
753 /* 2: we go up one level, but only when target is a normal container */
754 if (target->type != CT_WORKSPACE) {
755 DLOG("target originally = %p / %s / type %d\n", target, target->name, target->type);
756 target = target->parent;
759 /* 3: if the target container is floating, we get the workspace instead.
760 * Only tiling windows need to get inserted next to the current container.
762 Con *floatingcon = con_inside_floating(target);
763 if (floatingcon != NULL) {
764 DLOG("floatingcon, going up even further\n");
765 target = floatingcon->parent;
768 if (con->type == CT_FLOATING_CON) {
769 Con *ws = con_get_workspace(target);
770 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
774 if (source_output != dest_output) {
775 /* Take the relative coordinates of the current output, then add them
776 * to the coordinate space of the correct output */
777 if (fix_coordinates && con->type == CT_FLOATING_CON) {
778 floating_fix_coordinates(con, &(source_output->rect), &(dest_output->rect));
780 DLOG("Not fixing coordinates, fix_coordinates flag = %d\n", fix_coordinates);
782 /* If moving to a visible workspace, call show so it can be considered
783 * focused. Must do before attaching because workspace_show checks to see
784 * if focused container is in its area. */
785 if (workspace_is_visible(target_ws)) {
786 workspace_show(target_ws);
788 /* Don’t warp if told so (when dragging floating windows with the
789 * mouse for example) */
793 x_set_warp_to(&(con->rect));
797 /* If moving a fullscreen container and the destination already has a
798 * fullscreen window on it, un-fullscreen the target's fullscreen con. */
799 Con *fullscreen = con_get_fullscreen_con(target_ws, CF_OUTPUT);
800 if (con->fullscreen_mode != CF_NONE && fullscreen != NULL) {
801 con_toggle_fullscreen(fullscreen, CF_OUTPUT);
805 DLOG("Re-attaching container to %p / %s\n", target, target->name);
806 /* 4: re-attach the con to the parent of this focused container */
807 Con *parent = con->parent;
809 _con_attach(con, target, behind_focused ? NULL : orig_target, !behind_focused);
811 /* 5: fix the percentages */
812 con_fix_percent(parent);
814 con_fix_percent(target);
816 /* 6: focus the con on the target workspace, but only within that
817 * workspace, that is, don’t move focus away if the target workspace is
819 * We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
820 * we don’t focus when there is a fullscreen con on that workspace. */
821 if (!con_is_internal(target_ws) && !fullscreen) {
822 /* We need to save the focused workspace on the output in case the
823 * new workspace is hidden and it's necessary to immediately switch
824 * back to the originally-focused workspace. */
825 Con *old_focus = TAILQ_FIRST(&(output_get_content(dest_output)->focus_head));
826 con_focus(con_descend_focused(con));
828 /* Restore focus if the output's focused workspace has changed. */
829 if (con_get_workspace(focused) != old_focus)
830 con_focus(old_focus);
833 /* 7: when moving to another workspace, we leave the focus on the current
834 * workspace. (see also #809) */
836 /* Descend focus stack in case focus_next is a workspace which can
837 * occur if we move to the same workspace. Also show current workspace
838 * to ensure it is focused. */
839 workspace_show(current_ws);
841 /* Set focus only if con was on current workspace before moving.
842 * Otherwise we would give focus to some window on different workspace. */
843 if (source_ws == current_ws)
844 con_focus(con_descend_focused(focus_next));
846 /* 8. If anything within the container is associated with a startup sequence,
847 * delete it so child windows won't be created on the old workspace. */
848 struct Startup_Sequence *sequence;
849 xcb_get_property_cookie_t cookie;
850 xcb_get_property_reply_t *startup_id_reply;
852 if (!con_is_leaf(con)) {
854 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
858 cookie = xcb_get_property(conn, false, child->window->id,
859 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
860 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
862 sequence = startup_sequence_get(child->window, startup_id_reply, true);
863 if (sequence != NULL)
864 startup_sequence_delete(sequence);
869 cookie = xcb_get_property(conn, false, con->window->id,
870 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
871 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
873 sequence = startup_sequence_get(con->window, startup_id_reply, true);
874 if (sequence != NULL)
875 startup_sequence_delete(sequence);
878 CALL(parent, on_remove_child);
880 /* 9. If the container was marked urgent, move the urgency hint. */
882 workspace_update_urgent_flag(source_ws);
883 con_set_urgency(con, true);
886 ipc_send_window_event("move", con);
891 * Moves the given container to the given mark.
894 bool con_move_to_mark(Con *con, const char *mark) {
895 Con *target = con_by_mark(mark);
896 if (target == NULL) {
897 DLOG("found no container with mark \"%s\"\n", mark);
901 /* For floating target containers, we just send the window to the same workspace. */
902 if (con_is_floating(target)) {
903 DLOG("target container is floating, moving container to target's workspace.\n");
904 con_move_to_workspace(con, con_get_workspace(target), true, false);
908 /* For split containers, we use the currently focused container within it.
909 * This allows setting marks on, e.g., tabbed containers which will move
910 * con to a new tab behind the focused tab. */
911 if (con_is_split(target)) {
912 DLOG("target is a split container, descending to the currently focused child.\n");
913 target = TAILQ_FIRST(&(target->focus_head));
917 DLOG("cannot move the container to itself, aborting.\n");
921 return _con_move_to_con(con, target, false, true, false);
925 * Moves the given container to the currently focused container on the given
928 * The fix_coordinates flag will translate the current coordinates (offset from
929 * the monitor position basically) to appropriate coordinates on the
930 * destination workspace.
931 * Not enabling this behaviour comes in handy when this function gets called by
932 * floating_maybe_reassign_ws, which will only "move" a floating window when it
933 * *already* changed its coordinates to a different output.
935 * The dont_warp flag disables pointer warping and will be set when this
936 * function is called while dragging a floating window.
938 * TODO: is there a better place for this function?
941 void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp) {
942 assert(workspace->type == CT_WORKSPACE);
944 Con *source_ws = con_get_workspace(con);
945 if (workspace == source_ws) {
946 DLOG("Not moving, already there\n");
950 Con *target = con_descend_focused(workspace);
951 _con_move_to_con(con, target, true, fix_coordinates, dont_warp);
955 * Returns the orientation of the given container (for stacked containers,
956 * vertical orientation is used regardless of the actual orientation of the
960 orientation_t con_orientation(Con *con) {
961 switch (con->layout) {
963 /* stacking containers behave like they are in vertical orientation */
968 /* tabbed containers behave like they are in vertical orientation */
973 DLOG("Someone called con_orientation() on a con with L_DEFAULT, this is a bug in the code.\n");
979 DLOG("con_orientation() called on dockarea/output (%d) container %p\n", con->layout, con);
984 DLOG("con_orientation() ran into default\n");
990 * Returns the container which will be focused next when the given container
991 * is not available anymore. Called in tree_close and con_move_to_workspace
992 * to properly restore focus.
995 Con *con_next_focused(Con *con) {
997 /* floating containers are attached to a workspace, so we focus either the
998 * next floating container (if any) or the workspace itself. */
999 if (con->type == CT_FLOATING_CON) {
1000 DLOG("selecting next for CT_FLOATING_CON\n");
1001 next = TAILQ_NEXT(con, floating_windows);
1002 DLOG("next = %p\n", next);
1004 next = TAILQ_PREV(con, floating_head, floating_windows);
1005 DLOG("using prev, next = %p\n", next);
1008 Con *ws = con_get_workspace(con);
1010 DLOG("no more floating containers for next = %p, restoring workspace focus\n", next);
1011 while (next != TAILQ_END(&(ws->focus_head)) && !TAILQ_EMPTY(&(next->focus_head))) {
1012 next = TAILQ_FIRST(&(next->focus_head));
1014 DLOG("skipping container itself, we want the next client\n");
1015 next = TAILQ_NEXT(next, focused);
1018 if (next == TAILQ_END(&(ws->focus_head))) {
1019 DLOG("Focus list empty, returning ws\n");
1023 /* Instead of returning the next CT_FLOATING_CON, we descend it to
1024 * get an actual window to focus. */
1025 next = con_descend_focused(next);
1030 /* dock clients cannot be focused, so we focus the workspace instead */
1031 if (con->parent->type == CT_DOCKAREA) {
1032 DLOG("selecting workspace for dock client\n");
1033 return con_descend_focused(output_get_content(con->parent->parent));
1036 /* if 'con' is not the first entry in the focus stack, use the first one as
1037 * it’s currently focused already */
1038 Con *first = TAILQ_FIRST(&(con->parent->focus_head));
1040 DLOG("Using first entry %p\n", first);
1043 /* try to focus the next container on the same level as this one or fall
1044 * back to its parent */
1045 if (!(next = TAILQ_NEXT(con, focused)))
1049 /* now go down the focus stack as far as
1050 * possible, excluding the current container */
1051 while (!TAILQ_EMPTY(&(next->focus_head)) &&
1052 TAILQ_FIRST(&(next->focus_head)) != con)
1053 next = TAILQ_FIRST(&(next->focus_head));
1059 * Get the next/previous container in the specified orientation. This may
1060 * travel up until it finds a container with suitable orientation.
1063 Con *con_get_next(Con *con, char way, orientation_t orientation) {
1064 DLOG("con_get_next(way=%c, orientation=%d)\n", way, orientation);
1065 /* 1: get the first parent with the same orientation */
1067 while (con_orientation(cur->parent) != orientation) {
1068 DLOG("need to go one level further up\n");
1069 if (cur->parent->type == CT_WORKSPACE) {
1070 LOG("that's a workspace, we can't go further up\n");
1076 /* 2: chose next (or previous) */
1079 next = TAILQ_NEXT(cur, nodes);
1080 /* if we are at the end of the list, we need to wrap */
1081 if (next == TAILQ_END(&(parent->nodes_head)))
1084 next = TAILQ_PREV(cur, nodes_head, nodes);
1085 /* if we are at the end of the list, we need to wrap */
1086 if (next == TAILQ_END(&(cur->nodes_head)))
1089 DLOG("next = %p\n", next);
1095 * Returns the focused con inside this client, descending the tree as far as
1096 * possible. This comes in handy when attaching a con to a workspace at the
1097 * currently focused position, for example.
1100 Con *con_descend_focused(Con *con) {
1102 while (next != focused && !TAILQ_EMPTY(&(next->focus_head)))
1103 next = TAILQ_FIRST(&(next->focus_head));
1108 * Returns the focused con inside this client, descending the tree as far as
1109 * possible. This comes in handy when attaching a con to a workspace at the
1110 * currently focused position, for example.
1112 * Works like con_descend_focused but considers only tiling cons.
1115 Con *con_descend_tiling_focused(Con *con) {
1119 if (next == focused)
1123 TAILQ_FOREACH(child, &(next->focus_head), focused) {
1124 if (child->type == CT_FLOATING_CON)
1130 } while (before != next && next != focused);
1135 * Returns the leftmost, rightmost, etc. container in sub-tree. For example, if
1136 * direction is D_LEFT, then we return the rightmost container and if direction
1137 * is D_RIGHT, we return the leftmost container. This is because if we are
1138 * moving D_LEFT, and thus want the rightmost container.
1141 Con *con_descend_direction(Con *con, direction_t direction) {
1144 int orientation = con_orientation(con);
1145 DLOG("con_descend_direction(%p, orientation %d, direction %d)\n", con, orientation, direction);
1146 if (direction == D_LEFT || direction == D_RIGHT) {
1147 if (orientation == HORIZ) {
1148 /* If the direction is horizontal, we can use either the first
1149 * (D_RIGHT) or the last con (D_LEFT) */
1150 if (direction == D_RIGHT)
1151 most = TAILQ_FIRST(&(con->nodes_head));
1153 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1154 } else if (orientation == VERT) {
1155 /* Wrong orientation. We use the last focused con. Within that con,
1156 * we recurse to chose the left/right con or at least the last
1158 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1159 if (current->type != CT_FLOATING_CON) {
1165 /* If the con has no orientation set, it’s not a split container
1166 * but a container with a client window, so stop recursing */
1171 if (direction == D_UP || direction == D_DOWN) {
1172 if (orientation == VERT) {
1173 /* If the direction is vertical, we can use either the first
1174 * (D_DOWN) or the last con (D_UP) */
1175 if (direction == D_UP)
1176 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1178 most = TAILQ_FIRST(&(con->nodes_head));
1179 } else if (orientation == HORIZ) {
1180 /* Wrong orientation. We use the last focused con. Within that con,
1181 * we recurse to chose the top/bottom con or at least the last
1183 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1184 if (current->type != CT_FLOATING_CON) {
1190 /* If the con has no orientation set, it’s not a split container
1191 * but a container with a client window, so stop recursing */
1198 return con_descend_direction(most, direction);
1202 * Returns a "relative" Rect which contains the amount of pixels that need to
1203 * be added to the original Rect to get the final position (obviously the
1204 * amount of pixels for normal, 1pixel and borderless are different).
1207 Rect con_border_style_rect(Con *con) {
1208 adjacent_t borders_to_hide = ADJ_NONE;
1209 int border_width = con->current_border_width;
1210 DLOG("The border width for con is set to: %d\n", con->current_border_width);
1212 if (con->current_border_width < 0) {
1213 if (con_is_floating(con)) {
1214 border_width = config.default_floating_border_width;
1216 border_width = config.default_border_width;
1219 DLOG("Effective border width is set to: %d\n", border_width);
1220 /* Shortcut to avoid calling con_adjacent_borders() on dock containers. */
1221 int border_style = con_border_style(con);
1222 if (border_style == BS_NONE)
1223 return (Rect){0, 0, 0, 0};
1224 borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
1225 if (border_style == BS_NORMAL) {
1226 result = (Rect){border_width, 0, -(2 * border_width), -(border_width)};
1228 result = (Rect){border_width, border_width, -(2 * border_width), -(2 * border_width)};
1231 /* Floating windows are never adjacent to any other window, so
1232 don’t hide their border(s). This prevents bug #998. */
1233 if (con_is_floating(con))
1236 if (borders_to_hide & ADJ_LEFT_SCREEN_EDGE) {
1237 result.x -= border_width;
1238 result.width += border_width;
1240 if (borders_to_hide & ADJ_RIGHT_SCREEN_EDGE) {
1241 result.width += border_width;
1243 if (borders_to_hide & ADJ_UPPER_SCREEN_EDGE && (border_style != BS_NORMAL)) {
1244 result.y -= border_width;
1245 result.height += border_width;
1247 if (borders_to_hide & ADJ_LOWER_SCREEN_EDGE) {
1248 result.height += border_width;
1254 * Returns adjacent borders of the window. We need this if hide_edge_borders is
1257 adjacent_t con_adjacent_borders(Con *con) {
1258 adjacent_t result = ADJ_NONE;
1259 Con *workspace = con_get_workspace(con);
1260 if (con->rect.x == workspace->rect.x)
1261 result |= ADJ_LEFT_SCREEN_EDGE;
1262 if (con->rect.x + con->rect.width == workspace->rect.x + workspace->rect.width)
1263 result |= ADJ_RIGHT_SCREEN_EDGE;
1264 if (con->rect.y == workspace->rect.y)
1265 result |= ADJ_UPPER_SCREEN_EDGE;
1266 if (con->rect.y + con->rect.height == workspace->rect.y + workspace->rect.height)
1267 result |= ADJ_LOWER_SCREEN_EDGE;
1272 * Use this function to get a container’s border style. This is important
1273 * because when inside a stack, the border style is always BS_NORMAL.
1274 * For tabbed mode, the same applies, with one exception: when the container is
1275 * borderless and the only element in the tabbed container, the border is not
1278 * For children of a CT_DOCKAREA, the border style is always none.
1281 int con_border_style(Con *con) {
1282 Con *fs = con_get_fullscreen_con(con->parent, CF_OUTPUT);
1284 DLOG("this one is fullscreen! overriding BS_NONE\n");
1288 if (con->parent->layout == L_STACKED)
1289 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1291 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
1292 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1294 if (con->parent->type == CT_DOCKAREA)
1297 return con->border_style;
1301 * Sets the given border style on con, correctly keeping the position/size of a
1305 void con_set_border_style(Con *con, int border_style, int border_width) {
1306 /* Handle the simple case: non-floating containerns */
1307 if (!con_is_floating(con)) {
1308 con->border_style = border_style;
1309 con->current_border_width = border_width;
1313 /* For floating containers, we want to keep the position/size of the
1314 * *window* itself. We first add the border pixels to con->rect to make
1315 * con->rect represent the absolute position of the window (same for
1316 * parent). Then, we change the border style and subtract the new border
1317 * pixels. For the parent, we do the same also for the decoration. */
1318 DLOG("This is a floating container\n");
1320 Con *parent = con->parent;
1321 Rect bsr = con_border_style_rect(con);
1322 int deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1324 con->rect = rect_add(con->rect, bsr);
1325 parent->rect = rect_add(parent->rect, bsr);
1326 parent->rect.y += deco_height;
1327 parent->rect.height -= deco_height;
1329 /* Change the border style, get new border/decoration values. */
1330 con->border_style = border_style;
1331 con->current_border_width = border_width;
1332 bsr = con_border_style_rect(con);
1333 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1335 con->rect = rect_sub(con->rect, bsr);
1336 parent->rect = rect_sub(parent->rect, bsr);
1337 parent->rect.y -= deco_height;
1338 parent->rect.height += deco_height;
1342 * This function changes the layout of a given container. Use it to handle
1343 * special cases like changing a whole workspace to stacked/tabbed (creates a
1344 * new split container before).
1347 void con_set_layout(Con *con, layout_t layout) {
1348 DLOG("con_set_layout(%p, %d), con->type = %d\n",
1349 con, layout, con->type);
1351 /* Users can focus workspaces, but not any higher in the hierarchy.
1352 * Focus on the workspace is a special case, since in every other case, the
1353 * user means "change the layout of the parent split container". */
1354 if (con->type != CT_WORKSPACE)
1357 /* We fill in last_split_layout when switching to a different layout
1358 * since there are many places in the code that don’t use
1359 * con_set_layout(). */
1360 if (con->layout == L_SPLITH || con->layout == L_SPLITV)
1361 con->last_split_layout = con->layout;
1363 /* When the container type is CT_WORKSPACE, the user wants to change the
1364 * whole workspace into stacked/tabbed mode. To do this and still allow
1365 * intuitive operations (like level-up and then opening a new window), we
1366 * need to create a new split container. */
1367 if (con->type == CT_WORKSPACE &&
1368 (layout == L_STACKED || layout == L_TABBED)) {
1369 if (con_num_children(con) == 0) {
1370 DLOG("Setting workspace_layout to %d\n", layout);
1371 con->workspace_layout = layout;
1373 DLOG("Creating new split container\n");
1374 /* 1: create a new split container */
1375 Con *new = con_new(NULL, NULL);
1378 /* 2: Set the requested layout on the split container and mark it as
1380 new->layout = layout;
1381 new->last_split_layout = con->last_split_layout;
1383 /* Save the container that was focused before we move containers
1384 * around, but only if the container is visible (otherwise focus
1385 * will be restored properly automatically when switching). */
1386 Con *old_focused = TAILQ_FIRST(&(con->focus_head));
1387 if (old_focused == TAILQ_END(&(con->focus_head)))
1389 if (old_focused != NULL &&
1390 !workspace_is_visible(con_get_workspace(old_focused)))
1393 /* 3: move the existing cons of this workspace below the new con */
1394 DLOG("Moving cons\n");
1396 while (!TAILQ_EMPTY(&(con->nodes_head))) {
1397 child = TAILQ_FIRST(&(con->nodes_head));
1399 con_attach(child, new, true);
1402 /* 4: attach the new split container to the workspace */
1403 DLOG("Attaching new split to ws\n");
1404 con_attach(new, con, false);
1407 con_focus(old_focused);
1409 tree_flatten(croot);
1411 con_force_split_parents_redraw(con);
1415 if (layout == L_DEFAULT) {
1416 /* Special case: the layout formerly known as "default" (in combination
1417 * with an orientation). Since we switched to splith/splitv layouts,
1418 * using the "default" layout (which "only" should happen when using
1419 * legacy configs) is using the last split layout (either splith or
1420 * splitv) in order to still do the same thing. */
1421 con->layout = con->last_split_layout;
1422 /* In case last_split_layout was not initialized… */
1423 if (con->layout == L_DEFAULT)
1424 con->layout = L_SPLITH;
1426 con->layout = layout;
1428 con_force_split_parents_redraw(con);
1432 * This function toggles the layout of a given container. toggle_mode can be
1433 * either 'default' (toggle only between stacked/tabbed/last_split_layout),
1434 * 'split' (toggle only between splitv/splith) or 'all' (toggle between all
1438 void con_toggle_layout(Con *con, const char *toggle_mode) {
1440 /* Users can focus workspaces, but not any higher in the hierarchy.
1441 * Focus on the workspace is a special case, since in every other case, the
1442 * user means "change the layout of the parent split container". */
1443 if (con->type != CT_WORKSPACE)
1444 parent = con->parent;
1445 DLOG("con_toggle_layout(%p, %s), parent = %p\n", con, toggle_mode, parent);
1447 if (strcmp(toggle_mode, "split") == 0) {
1448 /* Toggle between splits. When the current layout is not a split
1449 * layout, we just switch back to last_split_layout. Otherwise, we
1450 * change to the opposite split layout. */
1451 if (parent->layout != L_SPLITH && parent->layout != L_SPLITV)
1452 con_set_layout(con, parent->last_split_layout);
1454 if (parent->layout == L_SPLITH)
1455 con_set_layout(con, L_SPLITV);
1457 con_set_layout(con, L_SPLITH);
1460 if (parent->layout == L_STACKED)
1461 con_set_layout(con, L_TABBED);
1462 else if (parent->layout == L_TABBED) {
1463 if (strcmp(toggle_mode, "all") == 0)
1464 con_set_layout(con, L_SPLITH);
1466 con_set_layout(con, parent->last_split_layout);
1467 } else if (parent->layout == L_SPLITH || parent->layout == L_SPLITV) {
1468 if (strcmp(toggle_mode, "all") == 0) {
1469 /* When toggling through all modes, we toggle between
1470 * splith/splitv, whereas normally we just directly jump to
1472 if (parent->layout == L_SPLITH)
1473 con_set_layout(con, L_SPLITV);
1475 con_set_layout(con, L_STACKED);
1477 con_set_layout(con, L_STACKED);
1484 * Callback which will be called when removing a child from the given con.
1485 * Kills the container if it is empty and replaces it with the child if there
1486 * is exactly one child.
1489 static void con_on_remove_child(Con *con) {
1490 DLOG("on_remove_child\n");
1492 /* Every container 'above' (in the hierarchy) the workspace content should
1493 * not be closed when the last child was removed */
1494 if (con->type == CT_OUTPUT ||
1495 con->type == CT_ROOT ||
1496 con->type == CT_DOCKAREA ||
1497 (con->parent != NULL && con->parent->type == CT_OUTPUT)) {
1498 DLOG("not handling, type = %d, name = %s\n", con->type, con->name);
1502 /* For workspaces, close them only if they're not visible anymore */
1503 if (con->type == CT_WORKSPACE) {
1504 if (TAILQ_EMPTY(&(con->focus_head)) && !workspace_is_visible(con)) {
1505 LOG("Closing old workspace (%p / %s), it is empty\n", con, con->name);
1506 yajl_gen gen = ipc_marshal_workspace_event("empty", con, NULL);
1507 tree_close(con, DONT_KILL_WINDOW, false, false);
1509 const unsigned char *payload;
1511 y(get_buf, &payload, &length);
1512 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, (const char *)payload);
1519 con_force_split_parents_redraw(con);
1520 con->urgent = con_has_urgent_child(con);
1521 con_update_parents_urgency(con);
1523 /* TODO: check if this container would swallow any other client and
1524 * don’t close it automatically. */
1525 int children = con_num_children(con);
1526 if (children == 0) {
1527 DLOG("Container empty, closing\n");
1528 tree_close(con, DONT_KILL_WINDOW, false, false);
1534 * Determines the minimum size of the given con by looking at its children (for
1535 * split/stacked/tabbed cons). Will be called when resizing floating cons
1538 Rect con_minimum_size(Con *con) {
1539 DLOG("Determining minimum size for con %p\n", con);
1541 if (con_is_leaf(con)) {
1542 DLOG("leaf node, returning 75x50\n");
1543 return (Rect){0, 0, 75, 50};
1546 if (con->type == CT_FLOATING_CON) {
1547 DLOG("floating con\n");
1548 Con *child = TAILQ_FIRST(&(con->nodes_head));
1549 return con_minimum_size(child);
1552 if (con->layout == L_STACKED || con->layout == L_TABBED) {
1553 uint32_t max_width = 0, max_height = 0, deco_height = 0;
1555 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1556 Rect min = con_minimum_size(child);
1557 deco_height += child->deco_rect.height;
1558 max_width = max(max_width, min.width);
1559 max_height = max(max_height, min.height);
1561 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
1562 max_width, max_height, deco_height);
1563 return (Rect){0, 0, max_width, max_height + deco_height};
1566 /* For horizontal/vertical split containers we sum up the width (h-split)
1567 * or height (v-split) and use the maximum of the height (h-split) or width
1568 * (v-split) as minimum size. */
1569 if (con_is_split(con)) {
1570 uint32_t width = 0, height = 0;
1572 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1573 Rect min = con_minimum_size(child);
1574 if (con->layout == L_SPLITH) {
1576 height = max(height, min.height);
1578 height += min.height;
1579 width = max(width, min.width);
1582 DLOG("split container, returning width = %d x height = %d\n", width, height);
1583 return (Rect){0, 0, width, height};
1586 ELOG("Unhandled case, type = %d, layout = %d, split = %d\n",
1587 con->type, con->layout, con_is_split(con));
1592 * Returns true if changing the focus to con would be allowed considering
1593 * the fullscreen focus constraints. Specifically, if a fullscreen container or
1594 * any of its descendants is focused, this function returns true if and only if
1595 * focusing con would mean that focus would still be visible on screen, i.e.,
1596 * the newly focused container would not be obscured by a fullscreen container.
1598 * In the simplest case, if a fullscreen container or any of its descendants is
1599 * fullscreen, this functions returns true if con is the fullscreen container
1600 * itself or any of its descendants, as this means focus wouldn't escape the
1601 * boundaries of the fullscreen container.
1603 * In case the fullscreen container is of type CF_OUTPUT, this function returns
1604 * true if con is on a different workspace, as focus wouldn't be obscured by
1605 * the fullscreen container that is constrained to a different workspace.
1607 * Note that this same logic can be applied to moving containers. If a
1608 * container can be focused under the fullscreen focus constraints, it can also
1609 * become a parent or sibling to the currently focused container.
1612 bool con_fullscreen_permits_focusing(Con *con) {
1613 /* No focus, no problem. */
1617 /* Find the first fullscreen ascendent. */
1619 while (fs && fs->fullscreen_mode == CF_NONE)
1622 /* fs must be non-NULL since the workspace con doesn’t have CF_NONE and
1623 * there always has to be a workspace con in the hierarchy. */
1625 /* The most common case is we hit the workspace level. In this
1626 * situation, changing focus is also harmless. */
1627 assert(fs->fullscreen_mode != CF_NONE);
1628 if (fs->type == CT_WORKSPACE)
1631 /* Allow it if the container itself is the fullscreen container. */
1635 /* If fullscreen is per-output, the focus being in a different workspace is
1636 * sufficient to guarantee that change won't leave fullscreen in bad shape. */
1637 if (fs->fullscreen_mode == CF_OUTPUT &&
1638 con_get_workspace(con) != con_get_workspace(fs)) {
1642 /* Allow it only if the container to be focused is contained within the
1643 * current fullscreen container. */
1645 if (con->parent == fs)
1650 /* Focusing con would hide it behind a fullscreen window, disallow it. */
1656 * Checks if the given container has an urgent child.
1659 bool con_has_urgent_child(Con *con) {
1662 if (con_is_leaf(con))
1665 /* We are not interested in floating windows since they can only be
1666 * attached to a workspace → nodes_head instead of focus_head */
1667 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1668 if (con_has_urgent_child(child))
1676 * Make all parent containers urgent if con is urgent or clear the urgent flag
1677 * of all parent containers if there are no more urgent children left.
1680 void con_update_parents_urgency(Con *con) {
1681 Con *parent = con->parent;
1683 bool new_urgency_value = con->urgent;
1684 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
1685 if (new_urgency_value) {
1686 parent->urgent = true;
1688 /* We can only reset the urgency when the parent
1689 * has no other urgent children */
1690 if (!con_has_urgent_child(parent))
1691 parent->urgent = false;
1693 parent = parent->parent;
1698 * Set urgency flag to the container, all the parent containers and the workspace.
1701 void con_set_urgency(Con *con, bool urgent) {
1702 if (focused == con) {
1703 DLOG("Ignoring urgency flag for current client\n");
1704 con->window->urgent.tv_sec = 0;
1705 con->window->urgent.tv_usec = 0;
1709 if (con->urgency_timer == NULL) {
1710 con->urgent = urgent;
1712 DLOG("Discarding urgency WM_HINT because timer is running\n");
1717 gettimeofday(&con->window->urgent, NULL);
1719 con->window->urgent.tv_sec = 0;
1720 con->window->urgent.tv_usec = 0;
1724 con_update_parents_urgency(con);
1727 /* Set the urgency flag on the workspace, if a workspace could be found
1728 * (for dock clients, that is not the case). */
1729 if ((ws = con_get_workspace(con)) != NULL)
1730 workspace_update_urgent_flag(ws);
1732 if (con->urgent == urgent) {
1733 LOG("Urgency flag changed to %d\n", con->urgent);
1734 ipc_send_window_event("urgent", con);
1739 * Create a string representing the subtree under con.
1742 char *con_get_tree_representation(Con *con) {
1743 /* this code works as follows:
1744 * 1) create a string with the layout type (D/V/H/T/S) and an opening bracket
1745 * 2) append the tree representation of the children to the string
1746 * 3) add closing bracket
1748 * The recursion ends when we hit a leaf, in which case we return the
1749 * class_instance of the contained window.
1752 /* end of recursion */
1753 if (con_is_leaf(con)) {
1755 return sstrdup("nowin");
1757 if (!con->window->class_instance)
1758 return sstrdup("noinstance");
1760 return sstrdup(con->window->class_instance);
1764 /* 1) add the Layout type to buf */
1765 if (con->layout == L_DEFAULT)
1766 buf = sstrdup("D[");
1767 else if (con->layout == L_SPLITV)
1768 buf = sstrdup("V[");
1769 else if (con->layout == L_SPLITH)
1770 buf = sstrdup("H[");
1771 else if (con->layout == L_TABBED)
1772 buf = sstrdup("T[");
1773 else if (con->layout == L_STACKED)
1774 buf = sstrdup("S[");
1776 ELOG("BUG: Code not updated to account for new layout type\n");
1780 /* 2) append representation of children */
1782 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1783 char *child_txt = con_get_tree_representation(child);
1786 sasprintf(&tmp_buf, "%s%s%s", buf,
1787 (TAILQ_FIRST(&(con->nodes_head)) == child ? "" : " "), child_txt);
1792 /* 3) close the brackets */
1794 sasprintf(&complete_buf, "%s]", buf);
1797 return complete_buf;