2 #define I3__FILE__ "con.c"
4 * vim:ts=4:sw=4:expandtab
6 * i3 - an improved dynamic tiling window manager
7 * © 2009-2011 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);
74 * Attaches the given container to the given parent. This happens when moving
75 * a container or when inserting a new container at a specific place in the
78 * ignore_focus is to just insert the Con at the end (useful when creating a
79 * new split container *around* some containers, that is, detaching and
80 * attaching them in order without wanting to mess with the focus in between).
83 void con_attach(Con *con, Con *parent, bool ignore_focus) {
87 struct nodes_head *nodes_head = &(parent->nodes_head);
88 struct focus_head *focus_head = &(parent->focus_head);
90 /* Workspaces are handled differently: they need to be inserted at the
92 if (con->type == CT_WORKSPACE) {
93 DLOG("it's a workspace. num = %d\n", con->num);
94 if (con->num == -1 || TAILQ_EMPTY(nodes_head)) {
95 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
97 current = TAILQ_FIRST(nodes_head);
98 if (con->num < current->num) {
99 /* we need to insert the container at the beginning */
100 TAILQ_INSERT_HEAD(nodes_head, con, nodes);
102 while (current->num != -1 && con->num > current->num) {
103 current = TAILQ_NEXT(current, nodes);
104 if (current == TAILQ_END(nodes_head)) {
109 /* we need to insert con after current, if current is not NULL */
111 TAILQ_INSERT_BEFORE(current, con, nodes);
113 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
116 goto add_to_focus_head;
119 if (con->type == CT_FLOATING_CON) {
120 DLOG("Inserting into floating containers\n");
121 TAILQ_INSERT_TAIL(&(parent->floating_head), con, floating_windows);
124 /* Get the first tiling container in focus stack */
125 TAILQ_FOREACH(loop, &(parent->focus_head), focused) {
126 if (loop->type == CT_FLOATING_CON)
133 /* When the container is not a split container (but contains a window)
134 * and is attached to a workspace, we check if the user configured a
135 * workspace_layout. This is done in workspace_attach_to, which will
136 * provide us with the container to which we should attach (either the
137 * workspace or a new split container with the configured
140 if (con->window != NULL &&
141 parent->type == CT_WORKSPACE &&
142 parent->workspace_layout != L_DEFAULT) {
143 DLOG("Parent is a workspace. Applying default layout...\n");
144 Con *target = workspace_attach_to(parent);
146 /* Attach the original con to this new split con instead */
147 nodes_head = &(target->nodes_head);
148 focus_head = &(target->focus_head);
149 con->parent = target;
155 /* Insert the container after the tiling container, if found.
156 * When adding to a CT_OUTPUT, just append one after another. */
157 if (current && parent->type != CT_OUTPUT) {
158 DLOG("Inserting con = %p after last focused tiling con %p\n",
160 TAILQ_INSERT_AFTER(nodes_head, current, con, nodes);
162 TAILQ_INSERT_TAIL(nodes_head, con, nodes);
166 /* We insert to the TAIL because con_focus() will correct this.
167 * This way, we have the option to insert Cons without having
169 TAILQ_INSERT_TAIL(focus_head, con, focused);
170 con_force_split_parents_redraw(con);
174 * Detaches the given container from its current parent
177 void con_detach(Con *con) {
178 con_force_split_parents_redraw(con);
179 if (con->type == CT_FLOATING_CON) {
180 TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
181 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
183 TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
184 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
189 * Sets input focus to the given container. Will be updated in X11 in the next
190 * run of x_push_changes().
193 void con_focus(Con *con) {
195 DLOG("con_focus = %p\n", con);
197 /* 1: set focused-pointer to the new con */
198 /* 2: exchange the position of the container in focus stack of the parent all the way up */
199 TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
200 TAILQ_INSERT_HEAD(&(con->parent->focus_head), con, focused);
201 if (con->parent->parent != NULL)
202 con_focus(con->parent);
205 /* We can't blindly reset non-leaf containers since they might have
206 * other urgent children. Therefore we only reset leafs and propagate
207 * the changes upwards via con_update_parents_urgency() which does proper
208 * checks before resetting the urgency.
210 if (con->urgent && con_is_leaf(con)) {
212 con_update_parents_urgency(con);
213 workspace_update_urgent_flag(con_get_workspace(con));
214 ipc_send_window_event("urgent", con);
219 * Returns true when this node is a leaf node (has no children)
222 bool con_is_leaf(Con *con) {
223 return TAILQ_EMPTY(&(con->nodes_head));
227 * Returns true when this con is a leaf node with a managed X11 window (e.g.,
228 * excluding dock containers)
230 bool con_has_managed_window(Con *con) {
231 return (con != NULL && con->window != NULL && con->window->id != XCB_WINDOW_NONE && con_get_workspace(con) != NULL);
235 * Returns true if this node has regular or floating children.
238 bool con_has_children(Con *con) {
239 return (!con_is_leaf(con) || !TAILQ_EMPTY(&(con->floating_head)));
243 * Returns true if a container should be considered split.
246 bool con_is_split(Con *con) {
247 if (con_is_leaf(con))
250 switch (con->layout) {
261 * Returns true if this node accepts a window (if the node swallows windows,
262 * it might already have swallowed enough and cannot hold any more).
265 bool con_accepts_window(Con *con) {
266 /* 1: workspaces never accept direct windows */
267 if (con->type == CT_WORKSPACE)
270 if (con_is_split(con)) {
271 DLOG("container %p does not accept windows, it is a split container.\n", con);
275 /* TODO: if this is a swallowing container, we need to check its max_clients */
276 return (con->window == NULL);
280 * Gets the output container (first container with CT_OUTPUT in hierarchy) this
284 Con *con_get_output(Con *con) {
286 while (result != NULL && result->type != CT_OUTPUT)
287 result = result->parent;
288 /* We must be able to get an output because focus can never be set higher
289 * in the tree (root node cannot be focused). */
290 assert(result != NULL);
295 * Gets the workspace container this node is on.
298 Con *con_get_workspace(Con *con) {
300 while (result != NULL && result->type != CT_WORKSPACE)
301 result = result->parent;
306 * Searches parenst of the given 'con' until it reaches one with the specified
307 * 'orientation'. Aborts when it comes across a floating_con.
310 Con *con_parent_with_orientation(Con *con, orientation_t orientation) {
311 DLOG("Searching for parent of Con %p with orientation %d\n", con, orientation);
312 Con *parent = con->parent;
313 if (parent->type == CT_FLOATING_CON)
315 while (con_orientation(parent) != orientation) {
316 DLOG("Need to go one level further up\n");
317 parent = parent->parent;
318 /* Abort when we reach a floating con, or an output con */
320 (parent->type == CT_FLOATING_CON ||
321 parent->type == CT_OUTPUT ||
322 (parent->parent && parent->parent->type == CT_OUTPUT)))
327 DLOG("Result: %p\n", parent);
332 * helper data structure for the breadth-first-search in
333 * con_get_fullscreen_con()
339 TAILQ_ENTRY(bfs_entry) entries;
343 * Returns the first fullscreen node below this node.
346 Con *con_get_fullscreen_con(Con *con, fullscreen_mode_t fullscreen_mode) {
347 Con *current, *child;
349 /* TODO: is breadth-first-search really appropriate? (check as soon as
350 * fullscreen levels and fullscreen for containers is implemented) */
351 TAILQ_HEAD(bfs_head, bfs_entry) bfs_head = TAILQ_HEAD_INITIALIZER(bfs_head);
352 struct bfs_entry *entry = smalloc(sizeof(struct bfs_entry));
354 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
356 while (!TAILQ_EMPTY(&bfs_head)) {
357 entry = TAILQ_FIRST(&bfs_head);
358 current = entry->con;
359 if (current != con && current->fullscreen_mode == fullscreen_mode) {
360 /* empty the queue */
361 while (!TAILQ_EMPTY(&bfs_head)) {
362 entry = TAILQ_FIRST(&bfs_head);
363 TAILQ_REMOVE(&bfs_head, entry, entries);
369 TAILQ_REMOVE(&bfs_head, entry, entries);
372 TAILQ_FOREACH(child, &(current->nodes_head), nodes) {
373 entry = smalloc(sizeof(struct bfs_entry));
375 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
378 TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
379 entry = smalloc(sizeof(struct bfs_entry));
381 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
389 * Returns true if the container is internal, such as __i3_scratch
392 bool con_is_internal(Con *con) {
393 return (con->name[0] == '_' && con->name[1] == '_');
397 * Returns true if the node is floating.
400 bool con_is_floating(Con *con) {
402 DLOG("checking if con %p is floating\n", con);
403 return (con->floating >= FLOATING_AUTO_ON);
407 * Checks if the given container is either floating or inside some floating
408 * container. It returns the FLOATING_CON container.
411 Con *con_inside_floating(Con *con) {
413 if (con->type == CT_FLOATING_CON)
416 if (con->floating >= FLOATING_AUTO_ON)
419 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
422 return con_inside_floating(con->parent);
426 * Checks if the given container is inside a focused container.
429 bool con_inside_focused(Con *con) {
434 return con_inside_focused(con->parent);
438 * Returns the container with the given client window ID or NULL if no such
442 Con *con_by_window_id(xcb_window_t window) {
444 TAILQ_FOREACH(con, &all_cons, all_cons)
445 if (con->window != NULL && con->window->id == window)
451 * Returns the container with the given frame ID or NULL if no such container
455 Con *con_by_frame_id(xcb_window_t frame) {
457 TAILQ_FOREACH(con, &all_cons, all_cons)
458 if (con->frame == frame)
464 * Returns the container with the given mark or NULL if no such container
468 Con *con_by_mark(const char *mark) {
470 TAILQ_FOREACH(con, &all_cons, all_cons) {
471 if (con->mark != NULL && strcmp(con->mark, mark) == 0)
479 * Returns the first container below 'con' which wants to swallow this window
483 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
486 //DLOG("searching con for window %p starting at con %p\n", window, con);
487 //DLOG("class == %s\n", window->class_class);
489 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
490 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
491 if (!match_matches_window(match, window))
493 if (store_match != NULL)
494 *store_match = match;
497 Con *result = con_for_window(child, window, store_match);
502 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
503 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
504 if (!match_matches_window(match, window))
506 if (store_match != NULL)
507 *store_match = match;
510 Con *result = con_for_window(child, window, store_match);
519 * Returns the number of children of this container.
522 int con_num_children(Con *con) {
526 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
533 * Updates the percent attribute of the children of the given container. This
534 * function needs to be called when a window is added or removed from a
538 void con_fix_percent(Con *con) {
540 int children = con_num_children(con);
542 // calculate how much we have distributed and how many containers
543 // with a percentage set we have
545 int children_with_percent = 0;
546 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
547 if (child->percent > 0.0) {
548 total += child->percent;
549 ++children_with_percent;
553 // if there were children without a percentage set, set to a value that
554 // will make those children proportional to all others
555 if (children_with_percent != children) {
556 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
557 if (child->percent <= 0.0) {
558 if (children_with_percent == 0)
559 total += (child->percent = 1.0);
561 total += (child->percent = total / children_with_percent);
566 // if we got a zero, just distribute the space equally, otherwise
567 // distribute according to the proportions we got
569 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
570 child->percent = 1.0 / children;
571 } else if (total != 1.0) {
572 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
573 child->percent /= total;
578 * Toggles fullscreen mode for the given container. If there already is a
579 * fullscreen container on this workspace, fullscreen will be disabled and then
580 * enabled for the container the user wants to have in fullscreen mode.
583 void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
584 if (con->type == CT_WORKSPACE) {
585 DLOG("You cannot make a workspace fullscreen.\n");
589 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
591 if (con->fullscreen_mode == CF_NONE)
592 con_enable_fullscreen(con, fullscreen_mode);
594 con_disable_fullscreen(con);
598 * Sets the specified fullscreen mode for the given container, sends the
599 * “fullscreen_mode” event and changes the XCB fullscreen property of the
600 * container’s window, if any.
603 static void con_set_fullscreen_mode(Con *con, fullscreen_mode_t fullscreen_mode) {
604 con->fullscreen_mode = fullscreen_mode;
606 DLOG("mode now: %d\n", con->fullscreen_mode);
608 /* Send an ipc window "fullscreen_mode" event */
609 ipc_send_window_event("fullscreen_mode", con);
611 /* update _NET_WM_STATE if this container has a window */
612 /* TODO: when a window is assigned to a container which is already
613 * fullscreened, this state needs to be pushed to the client, too */
614 if (con->window == NULL)
618 unsigned int num = 0;
620 if (con->fullscreen_mode != CF_NONE)
621 values[num++] = A__NET_WM_STATE_FULLSCREEN;
623 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id,
624 A__NET_WM_STATE, XCB_ATOM_ATOM, 32, num, values);
628 * Enables fullscreen mode for the given container, if necessary.
630 * If the container’s mode is already CF_OUTPUT or CF_GLOBAL, the container is
631 * kept fullscreen but its mode is set to CF_GLOBAL and CF_OUTPUT,
634 * Other fullscreen containers will be disabled first, if they hide the new
638 void con_enable_fullscreen(Con *con, fullscreen_mode_t fullscreen_mode) {
639 if (con->type == CT_WORKSPACE) {
640 DLOG("You cannot make a workspace fullscreen.\n");
644 assert(fullscreen_mode == CF_GLOBAL || fullscreen_mode == CF_OUTPUT);
646 if (fullscreen_mode == CF_GLOBAL)
647 DLOG("enabling global fullscreen for %p / %s\n", con, con->name);
649 DLOG("enabling fullscreen for %p / %s\n", con, con->name);
651 if (con->fullscreen_mode == fullscreen_mode) {
652 DLOG("fullscreen already enabled for %p / %s\n", con, con->name);
656 Con *con_ws = con_get_workspace(con);
658 /* Disable any fullscreen container that would conflict the new one. */
659 Con *fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
660 if (fullscreen == NULL)
661 fullscreen = con_get_fullscreen_con(con_ws, CF_OUTPUT);
662 if (fullscreen != NULL)
663 con_disable_fullscreen(fullscreen);
665 /* Set focus to new fullscreen container. Unless in global fullscreen mode
666 * and on another workspace restore focus afterwards.
667 * Switch to the container’s workspace if mode is global. */
668 Con *cur_ws = con_get_workspace(focused);
669 Con *old_focused = focused;
670 if (fullscreen_mode == CF_GLOBAL && cur_ws != con_ws)
671 workspace_show(con_ws);
673 if (fullscreen_mode != CF_GLOBAL && cur_ws != con_ws)
674 con_focus(old_focused);
676 con_set_fullscreen_mode(con, fullscreen_mode);
680 * Disables fullscreen mode for the given container regardless of the mode, if
684 void con_disable_fullscreen(Con *con) {
685 if (con->type == CT_WORKSPACE) {
686 DLOG("You cannot make a workspace fullscreen.\n");
690 DLOG("disabling fullscreen for %p / %s\n", con, con->name);
692 if (con->fullscreen_mode == CF_NONE) {
693 DLOG("fullscreen already disabled for %p / %s\n", con, con->name);
697 con_set_fullscreen_mode(con, CF_NONE);
700 static bool _con_move_to_con(Con *con, Con *target, bool fix_coordinates, bool dont_warp) {
701 /* Prevent moving if this would violate the fullscreen focus restrictions. */
702 Con *target_ws = con_get_workspace(target);
703 if (!con_fullscreen_permits_focusing(target_ws)) {
704 LOG("Cannot move out of a fullscreen container");
708 if (con_is_floating(con)) {
709 DLOG("Using FLOATINGCON instead\n");
713 Con *source_ws = con_get_workspace(con);
715 if (con->type == CT_WORKSPACE) {
716 /* Re-parent all of the old workspace's floating windows. */
718 while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
719 child = TAILQ_FIRST(&(source_ws->floating_head));
720 con_move_to_workspace(child, target_ws, true, true);
723 /* If there are no non-floating children, ignore the workspace. */
724 if (con_is_leaf(con))
727 con = workspace_encapsulate(con);
729 ELOG("Workspace failed to move its contents into a container!\n");
734 /* Save the urgency state so that we can restore it. */
735 bool urgent = con->urgent;
737 /* Save the current workspace. So we can call workspace_show() by the end
738 * of this function. */
739 Con *current_ws = con_get_workspace(focused);
741 Con *source_output = con_get_output(con),
742 *dest_output = con_get_output(target_ws);
744 /* 1: save the container which is going to be focused after the current
745 * container is moved away */
746 Con *focus_next = con_next_focused(con);
748 /* 2: we go up one level, but only when target is a normal container */
749 if (target->type != CT_WORKSPACE) {
750 DLOG("target originally = %p / %s / type %d\n", target, target->name, target->type);
751 target = target->parent;
754 /* 3: if the target container is floating, we get the workspace instead.
755 * Only tiling windows need to get inserted next to the current container.
757 Con *floatingcon = con_inside_floating(target);
758 if (floatingcon != NULL) {
759 DLOG("floatingcon, going up even further\n");
760 target = floatingcon->parent;
763 if (con->type == CT_FLOATING_CON) {
764 Con *ws = con_get_workspace(target);
765 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
769 if (source_output != dest_output) {
770 /* Take the relative coordinates of the current output, then add them
771 * to the coordinate space of the correct output */
772 if (fix_coordinates && con->type == CT_FLOATING_CON) {
773 floating_fix_coordinates(con, &(source_output->rect), &(dest_output->rect));
775 DLOG("Not fixing coordinates, fix_coordinates flag = %d\n", fix_coordinates);
777 /* If moving to a visible workspace, call show so it can be considered
778 * focused. Must do before attaching because workspace_show checks to see
779 * if focused container is in its area. */
780 if (workspace_is_visible(target_ws)) {
781 workspace_show(target_ws);
783 /* Don’t warp if told so (when dragging floating windows with the
784 * mouse for example) */
788 x_set_warp_to(&(con->rect));
792 /* If moving a fullscreen container and the destination already has a
793 * fullscreen window on it, un-fullscreen the target's fullscreen con. */
794 Con *fullscreen = con_get_fullscreen_con(target_ws, CF_OUTPUT);
795 if (con->fullscreen_mode != CF_NONE && fullscreen != NULL) {
796 con_toggle_fullscreen(fullscreen, CF_OUTPUT);
800 DLOG("Re-attaching container to %p / %s\n", target, target->name);
801 /* 4: re-attach the con to the parent of this focused container */
802 Con *parent = con->parent;
804 con_attach(con, target, false);
806 /* 5: fix the percentages */
807 con_fix_percent(parent);
809 con_fix_percent(target);
811 /* 6: focus the con on the target workspace, but only within that
812 * workspace, that is, don’t move focus away if the target workspace is
814 * We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
815 * we don’t focus when there is a fullscreen con on that workspace. */
816 if (!con_is_internal(target_ws) && !fullscreen) {
817 /* We need to save the focused workspace on the output in case the
818 * new workspace is hidden and it's necessary to immediately switch
819 * back to the originally-focused workspace. */
820 Con *old_focus = TAILQ_FIRST(&(output_get_content(dest_output)->focus_head));
821 con_focus(con_descend_focused(con));
823 /* Restore focus if the output's focused workspace has changed. */
824 if (con_get_workspace(focused) != old_focus)
825 con_focus(old_focus);
828 /* 7: when moving to another workspace, we leave the focus on the current
829 * workspace. (see also #809) */
831 /* Descend focus stack in case focus_next is a workspace which can
832 * occur if we move to the same workspace. Also show current workspace
833 * to ensure it is focused. */
834 workspace_show(current_ws);
836 /* Set focus only if con was on current workspace before moving.
837 * Otherwise we would give focus to some window on different workspace. */
838 if (source_ws == current_ws)
839 con_focus(con_descend_focused(focus_next));
841 /* 8. If anything within the container is associated with a startup sequence,
842 * delete it so child windows won't be created on the old workspace. */
843 struct Startup_Sequence *sequence;
844 xcb_get_property_cookie_t cookie;
845 xcb_get_property_reply_t *startup_id_reply;
847 if (!con_is_leaf(con)) {
849 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
853 cookie = xcb_get_property(conn, false, child->window->id,
854 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
855 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
857 sequence = startup_sequence_get(child->window, startup_id_reply, true);
858 if (sequence != NULL)
859 startup_sequence_delete(sequence);
864 cookie = xcb_get_property(conn, false, con->window->id,
865 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
866 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
868 sequence = startup_sequence_get(con->window, startup_id_reply, true);
869 if (sequence != NULL)
870 startup_sequence_delete(sequence);
873 CALL(parent, on_remove_child);
875 /* 9. If the container was marked urgent, move the urgency hint. */
877 workspace_update_urgent_flag(source_ws);
878 con_set_urgency(con, true);
881 ipc_send_window_event("move", con);
886 * Moves the given container to the currently focused container on the given
889 * The fix_coordinates flag will translate the current coordinates (offset from
890 * the monitor position basically) to appropriate coordinates on the
891 * destination workspace.
892 * Not enabling this behaviour comes in handy when this function gets called by
893 * floating_maybe_reassign_ws, which will only "move" a floating window when it
894 * *already* changed its coordinates to a different output.
896 * The dont_warp flag disables pointer warping and will be set when this
897 * function is called while dragging a floating window.
899 * TODO: is there a better place for this function?
902 void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp) {
903 Con *source_ws = con_get_workspace(con);
904 if (workspace == source_ws) {
905 DLOG("Not moving, already there\n");
909 Con *target = con_descend_focused(workspace);
910 _con_move_to_con(con, target, fix_coordinates, dont_warp);
914 * Returns the orientation of the given container (for stacked containers,
915 * vertical orientation is used regardless of the actual orientation of the
919 orientation_t con_orientation(Con *con) {
920 switch (con->layout) {
922 /* stacking containers behave like they are in vertical orientation */
927 /* tabbed containers behave like they are in vertical orientation */
932 DLOG("Someone called con_orientation() on a con with L_DEFAULT, this is a bug in the code.\n");
938 DLOG("con_orientation() called on dockarea/output (%d) container %p\n", con->layout, con);
943 DLOG("con_orientation() ran into default\n");
949 * Returns the container which will be focused next when the given container
950 * is not available anymore. Called in tree_close and con_move_to_workspace
951 * to properly restore focus.
954 Con *con_next_focused(Con *con) {
956 /* floating containers are attached to a workspace, so we focus either the
957 * next floating container (if any) or the workspace itself. */
958 if (con->type == CT_FLOATING_CON) {
959 DLOG("selecting next for CT_FLOATING_CON\n");
960 next = TAILQ_NEXT(con, floating_windows);
961 DLOG("next = %p\n", next);
963 next = TAILQ_PREV(con, floating_head, floating_windows);
964 DLOG("using prev, next = %p\n", next);
967 Con *ws = con_get_workspace(con);
969 DLOG("no more floating containers for next = %p, restoring workspace focus\n", next);
970 while (next != TAILQ_END(&(ws->focus_head)) && !TAILQ_EMPTY(&(next->focus_head))) {
971 next = TAILQ_FIRST(&(next->focus_head));
973 DLOG("skipping container itself, we want the next client\n");
974 next = TAILQ_NEXT(next, focused);
977 if (next == TAILQ_END(&(ws->focus_head))) {
978 DLOG("Focus list empty, returning ws\n");
982 /* Instead of returning the next CT_FLOATING_CON, we descend it to
983 * get an actual window to focus. */
984 next = con_descend_focused(next);
989 /* dock clients cannot be focused, so we focus the workspace instead */
990 if (con->parent->type == CT_DOCKAREA) {
991 DLOG("selecting workspace for dock client\n");
992 return con_descend_focused(output_get_content(con->parent->parent));
995 /* if 'con' is not the first entry in the focus stack, use the first one as
996 * it’s currently focused already */
997 Con *first = TAILQ_FIRST(&(con->parent->focus_head));
999 DLOG("Using first entry %p\n", first);
1002 /* try to focus the next container on the same level as this one or fall
1003 * back to its parent */
1004 if (!(next = TAILQ_NEXT(con, focused)))
1008 /* now go down the focus stack as far as
1009 * possible, excluding the current container */
1010 while (!TAILQ_EMPTY(&(next->focus_head)) &&
1011 TAILQ_FIRST(&(next->focus_head)) != con)
1012 next = TAILQ_FIRST(&(next->focus_head));
1018 * Get the next/previous container in the specified orientation. This may
1019 * travel up until it finds a container with suitable orientation.
1022 Con *con_get_next(Con *con, char way, orientation_t orientation) {
1023 DLOG("con_get_next(way=%c, orientation=%d)\n", way, orientation);
1024 /* 1: get the first parent with the same orientation */
1026 while (con_orientation(cur->parent) != orientation) {
1027 DLOG("need to go one level further up\n");
1028 if (cur->parent->type == CT_WORKSPACE) {
1029 LOG("that's a workspace, we can't go further up\n");
1035 /* 2: chose next (or previous) */
1038 next = TAILQ_NEXT(cur, nodes);
1039 /* if we are at the end of the list, we need to wrap */
1040 if (next == TAILQ_END(&(parent->nodes_head)))
1043 next = TAILQ_PREV(cur, nodes_head, nodes);
1044 /* if we are at the end of the list, we need to wrap */
1045 if (next == TAILQ_END(&(cur->nodes_head)))
1048 DLOG("next = %p\n", next);
1054 * Returns the focused con inside this client, descending the tree as far as
1055 * possible. This comes in handy when attaching a con to a workspace at the
1056 * currently focused position, for example.
1059 Con *con_descend_focused(Con *con) {
1061 while (next != focused && !TAILQ_EMPTY(&(next->focus_head)))
1062 next = TAILQ_FIRST(&(next->focus_head));
1067 * Returns the focused con inside this client, descending the tree as far as
1068 * possible. This comes in handy when attaching a con to a workspace at the
1069 * currently focused position, for example.
1071 * Works like con_descend_focused but considers only tiling cons.
1074 Con *con_descend_tiling_focused(Con *con) {
1078 if (next == focused)
1082 TAILQ_FOREACH(child, &(next->focus_head), focused) {
1083 if (child->type == CT_FLOATING_CON)
1089 } while (before != next && next != focused);
1094 * Returns the leftmost, rightmost, etc. container in sub-tree. For example, if
1095 * direction is D_LEFT, then we return the rightmost container and if direction
1096 * is D_RIGHT, we return the leftmost container. This is because if we are
1097 * moving D_LEFT, and thus want the rightmost container.
1100 Con *con_descend_direction(Con *con, direction_t direction) {
1103 int orientation = con_orientation(con);
1104 DLOG("con_descend_direction(%p, orientation %d, direction %d)\n", con, orientation, direction);
1105 if (direction == D_LEFT || direction == D_RIGHT) {
1106 if (orientation == HORIZ) {
1107 /* If the direction is horizontal, we can use either the first
1108 * (D_RIGHT) or the last con (D_LEFT) */
1109 if (direction == D_RIGHT)
1110 most = TAILQ_FIRST(&(con->nodes_head));
1112 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1113 } else if (orientation == VERT) {
1114 /* Wrong orientation. We use the last focused con. Within that con,
1115 * we recurse to chose the left/right con or at least the last
1117 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1118 if (current->type != CT_FLOATING_CON) {
1124 /* If the con has no orientation set, it’s not a split container
1125 * but a container with a client window, so stop recursing */
1130 if (direction == D_UP || direction == D_DOWN) {
1131 if (orientation == VERT) {
1132 /* If the direction is vertical, we can use either the first
1133 * (D_DOWN) or the last con (D_UP) */
1134 if (direction == D_UP)
1135 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1137 most = TAILQ_FIRST(&(con->nodes_head));
1138 } else if (orientation == HORIZ) {
1139 /* Wrong orientation. We use the last focused con. Within that con,
1140 * we recurse to chose the top/bottom con or at least the last
1142 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1143 if (current->type != CT_FLOATING_CON) {
1149 /* If the con has no orientation set, it’s not a split container
1150 * but a container with a client window, so stop recursing */
1157 return con_descend_direction(most, direction);
1161 * Returns a "relative" Rect which contains the amount of pixels that need to
1162 * be added to the original Rect to get the final position (obviously the
1163 * amount of pixels for normal, 1pixel and borderless are different).
1166 Rect con_border_style_rect(Con *con) {
1167 adjacent_t borders_to_hide = ADJ_NONE;
1168 int border_width = con->current_border_width;
1169 DLOG("The border width for con is set to: %d\n", con->current_border_width);
1171 if (con->current_border_width < 0) {
1172 if (con_is_floating(con)) {
1173 border_width = config.default_floating_border_width;
1175 border_width = config.default_border_width;
1178 DLOG("Effective border width is set to: %d\n", border_width);
1179 /* Shortcut to avoid calling con_adjacent_borders() on dock containers. */
1180 int border_style = con_border_style(con);
1181 if (border_style == BS_NONE)
1182 return (Rect){0, 0, 0, 0};
1183 borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
1184 if (border_style == BS_NORMAL) {
1185 result = (Rect){border_width, 0, -(2 * border_width), -(border_width)};
1187 result = (Rect){border_width, border_width, -(2 * border_width), -(2 * border_width)};
1190 /* Floating windows are never adjacent to any other window, so
1191 don’t hide their border(s). This prevents bug #998. */
1192 if (con_is_floating(con))
1195 if (borders_to_hide & ADJ_LEFT_SCREEN_EDGE) {
1196 result.x -= border_width;
1197 result.width += border_width;
1199 if (borders_to_hide & ADJ_RIGHT_SCREEN_EDGE) {
1200 result.width += border_width;
1202 if (borders_to_hide & ADJ_UPPER_SCREEN_EDGE && (border_style != BS_NORMAL)) {
1203 result.y -= border_width;
1204 result.height += border_width;
1206 if (borders_to_hide & ADJ_LOWER_SCREEN_EDGE) {
1207 result.height += border_width;
1213 * Returns adjacent borders of the window. We need this if hide_edge_borders is
1216 adjacent_t con_adjacent_borders(Con *con) {
1217 adjacent_t result = ADJ_NONE;
1218 Con *workspace = con_get_workspace(con);
1219 if (con->rect.x == workspace->rect.x)
1220 result |= ADJ_LEFT_SCREEN_EDGE;
1221 if (con->rect.x + con->rect.width == workspace->rect.x + workspace->rect.width)
1222 result |= ADJ_RIGHT_SCREEN_EDGE;
1223 if (con->rect.y == workspace->rect.y)
1224 result |= ADJ_UPPER_SCREEN_EDGE;
1225 if (con->rect.y + con->rect.height == workspace->rect.y + workspace->rect.height)
1226 result |= ADJ_LOWER_SCREEN_EDGE;
1231 * Use this function to get a container’s border style. This is important
1232 * because when inside a stack, the border style is always BS_NORMAL.
1233 * For tabbed mode, the same applies, with one exception: when the container is
1234 * borderless and the only element in the tabbed container, the border is not
1237 * For children of a CT_DOCKAREA, the border style is always none.
1240 int con_border_style(Con *con) {
1241 Con *fs = con_get_fullscreen_con(con->parent, CF_OUTPUT);
1243 DLOG("this one is fullscreen! overriding BS_NONE\n");
1247 if (con->parent->layout == L_STACKED)
1248 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1250 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
1251 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1253 if (con->parent->type == CT_DOCKAREA)
1256 return con->border_style;
1260 * Sets the given border style on con, correctly keeping the position/size of a
1264 void con_set_border_style(Con *con, int border_style, int border_width) {
1265 /* Handle the simple case: non-floating containerns */
1266 if (!con_is_floating(con)) {
1267 con->border_style = border_style;
1268 con->current_border_width = border_width;
1272 /* For floating containers, we want to keep the position/size of the
1273 * *window* itself. We first add the border pixels to con->rect to make
1274 * con->rect represent the absolute position of the window (same for
1275 * parent). Then, we change the border style and subtract the new border
1276 * pixels. For the parent, we do the same also for the decoration. */
1277 DLOG("This is a floating container\n");
1279 Con *parent = con->parent;
1280 Rect bsr = con_border_style_rect(con);
1281 int deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1283 con->rect = rect_add(con->rect, bsr);
1284 parent->rect = rect_add(parent->rect, bsr);
1285 parent->rect.y += deco_height;
1286 parent->rect.height -= deco_height;
1288 /* Change the border style, get new border/decoration values. */
1289 con->border_style = border_style;
1290 con->current_border_width = border_width;
1291 bsr = con_border_style_rect(con);
1292 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1294 con->rect = rect_sub(con->rect, bsr);
1295 parent->rect = rect_sub(parent->rect, bsr);
1296 parent->rect.y -= deco_height;
1297 parent->rect.height += deco_height;
1301 * This function changes the layout of a given container. Use it to handle
1302 * special cases like changing a whole workspace to stacked/tabbed (creates a
1303 * new split container before).
1306 void con_set_layout(Con *con, layout_t layout) {
1307 DLOG("con_set_layout(%p, %d), con->type = %d\n",
1308 con, layout, con->type);
1310 /* Users can focus workspaces, but not any higher in the hierarchy.
1311 * Focus on the workspace is a special case, since in every other case, the
1312 * user means "change the layout of the parent split container". */
1313 if (con->type != CT_WORKSPACE)
1316 /* We fill in last_split_layout when switching to a different layout
1317 * since there are many places in the code that don’t use
1318 * con_set_layout(). */
1319 if (con->layout == L_SPLITH || con->layout == L_SPLITV)
1320 con->last_split_layout = con->layout;
1322 /* When the container type is CT_WORKSPACE, the user wants to change the
1323 * whole workspace into stacked/tabbed mode. To do this and still allow
1324 * intuitive operations (like level-up and then opening a new window), we
1325 * need to create a new split container. */
1326 if (con->type == CT_WORKSPACE &&
1327 (layout == L_STACKED || layout == L_TABBED)) {
1328 if (con_num_children(con) == 0) {
1329 DLOG("Setting workspace_layout to %d\n", layout);
1330 con->workspace_layout = layout;
1332 DLOG("Creating new split container\n");
1333 /* 1: create a new split container */
1334 Con *new = con_new(NULL, NULL);
1337 /* 2: Set the requested layout on the split container and mark it as
1339 new->layout = layout;
1340 new->last_split_layout = con->last_split_layout;
1342 /* Save the container that was focused before we move containers
1343 * around, but only if the container is visible (otherwise focus
1344 * will be restored properly automatically when switching). */
1345 Con *old_focused = TAILQ_FIRST(&(con->focus_head));
1346 if (old_focused == TAILQ_END(&(con->focus_head)))
1348 if (old_focused != NULL &&
1349 !workspace_is_visible(con_get_workspace(old_focused)))
1352 /* 3: move the existing cons of this workspace below the new con */
1353 DLOG("Moving cons\n");
1355 while (!TAILQ_EMPTY(&(con->nodes_head))) {
1356 child = TAILQ_FIRST(&(con->nodes_head));
1358 con_attach(child, new, true);
1361 /* 4: attach the new split container to the workspace */
1362 DLOG("Attaching new split to ws\n");
1363 con_attach(new, con, false);
1366 con_focus(old_focused);
1368 tree_flatten(croot);
1370 con_force_split_parents_redraw(con);
1374 if (layout == L_DEFAULT) {
1375 /* Special case: the layout formerly known as "default" (in combination
1376 * with an orientation). Since we switched to splith/splitv layouts,
1377 * using the "default" layout (which "only" should happen when using
1378 * legacy configs) is using the last split layout (either splith or
1379 * splitv) in order to still do the same thing. */
1380 con->layout = con->last_split_layout;
1381 /* In case last_split_layout was not initialized… */
1382 if (con->layout == L_DEFAULT)
1383 con->layout = L_SPLITH;
1385 con->layout = layout;
1387 con_force_split_parents_redraw(con);
1391 * This function toggles the layout of a given container. toggle_mode can be
1392 * either 'default' (toggle only between stacked/tabbed/last_split_layout),
1393 * 'split' (toggle only between splitv/splith) or 'all' (toggle between all
1397 void con_toggle_layout(Con *con, const char *toggle_mode) {
1399 /* Users can focus workspaces, but not any higher in the hierarchy.
1400 * Focus on the workspace is a special case, since in every other case, the
1401 * user means "change the layout of the parent split container". */
1402 if (con->type != CT_WORKSPACE)
1403 parent = con->parent;
1404 DLOG("con_toggle_layout(%p, %s), parent = %p\n", con, toggle_mode, parent);
1406 if (strcmp(toggle_mode, "split") == 0) {
1407 /* Toggle between splits. When the current layout is not a split
1408 * layout, we just switch back to last_split_layout. Otherwise, we
1409 * change to the opposite split layout. */
1410 if (parent->layout != L_SPLITH && parent->layout != L_SPLITV)
1411 con_set_layout(con, parent->last_split_layout);
1413 if (parent->layout == L_SPLITH)
1414 con_set_layout(con, L_SPLITV);
1416 con_set_layout(con, L_SPLITH);
1419 if (parent->layout == L_STACKED)
1420 con_set_layout(con, L_TABBED);
1421 else if (parent->layout == L_TABBED) {
1422 if (strcmp(toggle_mode, "all") == 0)
1423 con_set_layout(con, L_SPLITH);
1425 con_set_layout(con, parent->last_split_layout);
1426 } else if (parent->layout == L_SPLITH || parent->layout == L_SPLITV) {
1427 if (strcmp(toggle_mode, "all") == 0) {
1428 /* When toggling through all modes, we toggle between
1429 * splith/splitv, whereas normally we just directly jump to
1431 if (parent->layout == L_SPLITH)
1432 con_set_layout(con, L_SPLITV);
1434 con_set_layout(con, L_STACKED);
1436 con_set_layout(con, L_STACKED);
1443 * Callback which will be called when removing a child from the given con.
1444 * Kills the container if it is empty and replaces it with the child if there
1445 * is exactly one child.
1448 static void con_on_remove_child(Con *con) {
1449 DLOG("on_remove_child\n");
1451 /* Every container 'above' (in the hierarchy) the workspace content should
1452 * not be closed when the last child was removed */
1453 if (con->type == CT_OUTPUT ||
1454 con->type == CT_ROOT ||
1455 con->type == CT_DOCKAREA ||
1456 (con->parent != NULL && con->parent->type == CT_OUTPUT)) {
1457 DLOG("not handling, type = %d, name = %s\n", con->type, con->name);
1461 /* For workspaces, close them only if they're not visible anymore */
1462 if (con->type == CT_WORKSPACE) {
1463 if (TAILQ_EMPTY(&(con->focus_head)) && !workspace_is_visible(con)) {
1464 LOG("Closing old workspace (%p / %s), it is empty\n", con, con->name);
1465 yajl_gen gen = ipc_marshal_workspace_event("empty", con, NULL);
1466 tree_close(con, DONT_KILL_WINDOW, false, false);
1468 const unsigned char *payload;
1470 y(get_buf, &payload, &length);
1471 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, (const char *)payload);
1478 con_force_split_parents_redraw(con);
1479 con->urgent = con_has_urgent_child(con);
1480 con_update_parents_urgency(con);
1482 /* TODO: check if this container would swallow any other client and
1483 * don’t close it automatically. */
1484 int children = con_num_children(con);
1485 if (children == 0) {
1486 DLOG("Container empty, closing\n");
1487 tree_close(con, DONT_KILL_WINDOW, false, false);
1493 * Determines the minimum size of the given con by looking at its children (for
1494 * split/stacked/tabbed cons). Will be called when resizing floating cons
1497 Rect con_minimum_size(Con *con) {
1498 DLOG("Determining minimum size for con %p\n", con);
1500 if (con_is_leaf(con)) {
1501 DLOG("leaf node, returning 75x50\n");
1502 return (Rect){0, 0, 75, 50};
1505 if (con->type == CT_FLOATING_CON) {
1506 DLOG("floating con\n");
1507 Con *child = TAILQ_FIRST(&(con->nodes_head));
1508 return con_minimum_size(child);
1511 if (con->layout == L_STACKED || con->layout == L_TABBED) {
1512 uint32_t max_width = 0, max_height = 0, deco_height = 0;
1514 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1515 Rect min = con_minimum_size(child);
1516 deco_height += child->deco_rect.height;
1517 max_width = max(max_width, min.width);
1518 max_height = max(max_height, min.height);
1520 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
1521 max_width, max_height, deco_height);
1522 return (Rect){0, 0, max_width, max_height + deco_height};
1525 /* For horizontal/vertical split containers we sum up the width (h-split)
1526 * or height (v-split) and use the maximum of the height (h-split) or width
1527 * (v-split) as minimum size. */
1528 if (con_is_split(con)) {
1529 uint32_t width = 0, height = 0;
1531 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1532 Rect min = con_minimum_size(child);
1533 if (con->layout == L_SPLITH) {
1535 height = max(height, min.height);
1537 height += min.height;
1538 width = max(width, min.width);
1541 DLOG("split container, returning width = %d x height = %d\n", width, height);
1542 return (Rect){0, 0, width, height};
1545 ELOG("Unhandled case, type = %d, layout = %d, split = %d\n",
1546 con->type, con->layout, con_is_split(con));
1551 * Returns true if changing the focus to con would be allowed considering
1552 * the fullscreen focus constraints. Specifically, if a fullscreen container or
1553 * any of its descendants is focused, this function returns true if and only if
1554 * focusing con would mean that focus would still be visible on screen, i.e.,
1555 * the newly focused container would not be obscured by a fullscreen container.
1557 * In the simplest case, if a fullscreen container or any of its descendants is
1558 * fullscreen, this functions returns true if con is the fullscreen container
1559 * itself or any of its descendants, as this means focus wouldn't escape the
1560 * boundaries of the fullscreen container.
1562 * In case the fullscreen container is of type CF_OUTPUT, this function returns
1563 * true if con is on a different workspace, as focus wouldn't be obscured by
1564 * the fullscreen container that is constrained to a different workspace.
1566 * Note that this same logic can be applied to moving containers. If a
1567 * container can be focused under the fullscreen focus constraints, it can also
1568 * become a parent or sibling to the currently focused container.
1571 bool con_fullscreen_permits_focusing(Con *con) {
1572 /* No focus, no problem. */
1576 /* Find the first fullscreen ascendent. */
1578 while (fs && fs->fullscreen_mode == CF_NONE)
1581 /* fs must be non-NULL since the workspace con doesn’t have CF_NONE and
1582 * there always has to be a workspace con in the hierarchy. */
1584 /* The most common case is we hit the workspace level. In this
1585 * situation, changing focus is also harmless. */
1586 assert(fs->fullscreen_mode != CF_NONE);
1587 if (fs->type == CT_WORKSPACE)
1590 /* Allow it if the container itself is the fullscreen container. */
1594 /* If fullscreen is per-output, the focus being in a different workspace is
1595 * sufficient to guarantee that change won't leave fullscreen in bad shape. */
1596 if (fs->fullscreen_mode == CF_OUTPUT &&
1597 con_get_workspace(con) != con_get_workspace(fs)) {
1601 /* Allow it only if the container to be focused is contained within the
1602 * current fullscreen container. */
1604 if (con->parent == fs)
1609 /* Focusing con would hide it behind a fullscreen window, disallow it. */
1615 * Checks if the given container has an urgent child.
1618 bool con_has_urgent_child(Con *con) {
1621 if (con_is_leaf(con))
1624 /* We are not interested in floating windows since they can only be
1625 * attached to a workspace → nodes_head instead of focus_head */
1626 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1627 if (con_has_urgent_child(child))
1635 * Make all parent containers urgent if con is urgent or clear the urgent flag
1636 * of all parent containers if there are no more urgent children left.
1639 void con_update_parents_urgency(Con *con) {
1640 Con *parent = con->parent;
1642 bool new_urgency_value = con->urgent;
1643 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
1644 if (new_urgency_value) {
1645 parent->urgent = true;
1647 /* We can only reset the urgency when the parent
1648 * has no other urgent children */
1649 if (!con_has_urgent_child(parent))
1650 parent->urgent = false;
1652 parent = parent->parent;
1657 * Set urgency flag to the container, all the parent containers and the workspace.
1660 void con_set_urgency(Con *con, bool urgent) {
1661 if (focused == con) {
1662 DLOG("Ignoring urgency flag for current client\n");
1663 con->window->urgent.tv_sec = 0;
1664 con->window->urgent.tv_usec = 0;
1668 if (con->urgency_timer == NULL) {
1669 con->urgent = urgent;
1671 DLOG("Discarding urgency WM_HINT because timer is running\n");
1676 gettimeofday(&con->window->urgent, NULL);
1678 con->window->urgent.tv_sec = 0;
1679 con->window->urgent.tv_usec = 0;
1683 con_update_parents_urgency(con);
1686 /* Set the urgency flag on the workspace, if a workspace could be found
1687 * (for dock clients, that is not the case). */
1688 if ((ws = con_get_workspace(con)) != NULL)
1689 workspace_update_urgent_flag(ws);
1691 if (con->urgent == urgent) {
1692 LOG("Urgency flag changed to %d\n", con->urgent);
1693 ipc_send_window_event("urgent", con);
1698 * Create a string representing the subtree under con.
1701 char *con_get_tree_representation(Con *con) {
1702 /* this code works as follows:
1703 * 1) create a string with the layout type (D/V/H/T/S) and an opening bracket
1704 * 2) append the tree representation of the children to the string
1705 * 3) add closing bracket
1707 * The recursion ends when we hit a leaf, in which case we return the
1708 * class_instance of the contained window.
1711 /* end of recursion */
1712 if (con_is_leaf(con)) {
1714 return sstrdup("nowin");
1716 if (!con->window->class_instance)
1717 return sstrdup("noinstance");
1719 return sstrdup(con->window->class_instance);
1723 /* 1) add the Layout type to buf */
1724 if (con->layout == L_DEFAULT)
1725 buf = sstrdup("D[");
1726 else if (con->layout == L_SPLITV)
1727 buf = sstrdup("V[");
1728 else if (con->layout == L_SPLITH)
1729 buf = sstrdup("H[");
1730 else if (con->layout == L_TABBED)
1731 buf = sstrdup("T[");
1732 else if (con->layout == L_STACKED)
1733 buf = sstrdup("S[");
1735 ELOG("BUG: Code not updated to account for new layout type\n");
1739 /* 2) append representation of children */
1741 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1742 char *child_txt = con_get_tree_representation(child);
1745 sasprintf(&tmp_buf, "%s%s%s", buf,
1746 (TAILQ_FIRST(&(con->nodes_head)) == child ? "" : " "), child_txt);
1751 /* 3) close the brackets */
1753 sasprintf(&complete_buf, "%s]", buf);
1756 return complete_buf;