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 * This will only return true for containers which have some parent with
265 * a tabbed / stacked parent of which they are not the currently focused child.
268 bool con_is_hidden(Con *con) {
271 /* ascend to the workspace level and memorize the highest-up container
272 * which is stacked or tabbed. */
273 while (current != NULL && current->type != CT_WORKSPACE) {
274 Con *parent = current->parent;
275 if (parent != NULL && (parent->layout == L_TABBED || parent->layout == L_STACKED)) {
276 if (TAILQ_FIRST(&(parent->focus_head)) != current)
287 * Returns true if this node accepts a window (if the node swallows windows,
288 * it might already have swallowed enough and cannot hold any more).
291 bool con_accepts_window(Con *con) {
292 /* 1: workspaces never accept direct windows */
293 if (con->type == CT_WORKSPACE)
296 if (con_is_split(con)) {
297 DLOG("container %p does not accept windows, it is a split container.\n", con);
301 /* TODO: if this is a swallowing container, we need to check its max_clients */
302 return (con->window == NULL);
306 * Gets the output container (first container with CT_OUTPUT in hierarchy) this
310 Con *con_get_output(Con *con) {
312 while (result != NULL && result->type != CT_OUTPUT)
313 result = result->parent;
314 /* We must be able to get an output because focus can never be set higher
315 * in the tree (root node cannot be focused). */
316 assert(result != NULL);
321 * Gets the workspace container this node is on.
324 Con *con_get_workspace(Con *con) {
326 while (result != NULL && result->type != CT_WORKSPACE)
327 result = result->parent;
332 * Searches parenst of the given 'con' until it reaches one with the specified
333 * 'orientation'. Aborts when it comes across a floating_con.
336 Con *con_parent_with_orientation(Con *con, orientation_t orientation) {
337 DLOG("Searching for parent of Con %p with orientation %d\n", con, orientation);
338 Con *parent = con->parent;
339 if (parent->type == CT_FLOATING_CON)
341 while (con_orientation(parent) != orientation) {
342 DLOG("Need to go one level further up\n");
343 parent = parent->parent;
344 /* Abort when we reach a floating con, or an output con */
346 (parent->type == CT_FLOATING_CON ||
347 parent->type == CT_OUTPUT ||
348 (parent->parent && parent->parent->type == CT_OUTPUT)))
353 DLOG("Result: %p\n", parent);
358 * helper data structure for the breadth-first-search in
359 * con_get_fullscreen_con()
365 TAILQ_ENTRY(bfs_entry) entries;
369 * Returns the first fullscreen node below this node.
372 Con *con_get_fullscreen_con(Con *con, fullscreen_mode_t fullscreen_mode) {
373 Con *current, *child;
375 /* TODO: is breadth-first-search really appropriate? (check as soon as
376 * fullscreen levels and fullscreen for containers is implemented) */
377 TAILQ_HEAD(bfs_head, bfs_entry) bfs_head = TAILQ_HEAD_INITIALIZER(bfs_head);
378 struct bfs_entry *entry = smalloc(sizeof(struct bfs_entry));
380 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
382 while (!TAILQ_EMPTY(&bfs_head)) {
383 entry = TAILQ_FIRST(&bfs_head);
384 current = entry->con;
385 if (current != con && current->fullscreen_mode == fullscreen_mode) {
386 /* empty the queue */
387 while (!TAILQ_EMPTY(&bfs_head)) {
388 entry = TAILQ_FIRST(&bfs_head);
389 TAILQ_REMOVE(&bfs_head, entry, entries);
395 TAILQ_REMOVE(&bfs_head, entry, entries);
398 TAILQ_FOREACH(child, &(current->nodes_head), nodes) {
399 entry = smalloc(sizeof(struct bfs_entry));
401 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
404 TAILQ_FOREACH(child, &(current->floating_head), floating_windows) {
405 entry = smalloc(sizeof(struct bfs_entry));
407 TAILQ_INSERT_TAIL(&bfs_head, entry, entries);
415 * Returns true if the container is internal, such as __i3_scratch
418 bool con_is_internal(Con *con) {
419 return (con->name[0] == '_' && con->name[1] == '_');
423 * Returns true if the node is floating.
426 bool con_is_floating(Con *con) {
428 DLOG("checking if con %p is floating\n", con);
429 return (con->floating >= FLOATING_AUTO_ON);
433 * Checks if the given container is either floating or inside some floating
434 * container. It returns the FLOATING_CON container.
437 Con *con_inside_floating(Con *con) {
439 if (con->type == CT_FLOATING_CON)
442 if (con->floating >= FLOATING_AUTO_ON)
445 if (con->type == CT_WORKSPACE || con->type == CT_OUTPUT)
448 return con_inside_floating(con->parent);
452 * Checks if the given container is inside a focused container.
455 bool con_inside_focused(Con *con) {
460 return con_inside_focused(con->parent);
464 * Returns the container with the given client window ID or NULL if no such
468 Con *con_by_window_id(xcb_window_t window) {
470 TAILQ_FOREACH(con, &all_cons, all_cons)
471 if (con->window != NULL && con->window->id == window)
477 * Returns the container with the given frame ID or NULL if no such container
481 Con *con_by_frame_id(xcb_window_t frame) {
483 TAILQ_FOREACH(con, &all_cons, all_cons)
484 if (con->frame == frame)
490 * Returns the container with the given mark or NULL if no such container
494 Con *con_by_mark(const char *mark) {
496 TAILQ_FOREACH(con, &all_cons, all_cons) {
497 if (con->mark != NULL && strcmp(con->mark, mark) == 0)
505 * Returns the first container below 'con' which wants to swallow this window
509 Con *con_for_window(Con *con, i3Window *window, Match **store_match) {
512 //DLOG("searching con for window %p starting at con %p\n", window, con);
513 //DLOG("class == %s\n", window->class_class);
515 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
516 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
517 if (!match_matches_window(match, window))
519 if (store_match != NULL)
520 *store_match = match;
523 Con *result = con_for_window(child, window, store_match);
528 TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
529 TAILQ_FOREACH(match, &(child->swallow_head), matches) {
530 if (!match_matches_window(match, window))
532 if (store_match != NULL)
533 *store_match = match;
536 Con *result = con_for_window(child, window, store_match);
545 * Returns the number of children of this container.
548 int con_num_children(Con *con) {
552 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
559 * Updates the percent attribute of the children of the given container. This
560 * function needs to be called when a window is added or removed from a
564 void con_fix_percent(Con *con) {
566 int children = con_num_children(con);
568 // calculate how much we have distributed and how many containers
569 // with a percentage set we have
571 int children_with_percent = 0;
572 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
573 if (child->percent > 0.0) {
574 total += child->percent;
575 ++children_with_percent;
579 // if there were children without a percentage set, set to a value that
580 // will make those children proportional to all others
581 if (children_with_percent != children) {
582 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
583 if (child->percent <= 0.0) {
584 if (children_with_percent == 0)
585 total += (child->percent = 1.0);
587 total += (child->percent = total / children_with_percent);
592 // if we got a zero, just distribute the space equally, otherwise
593 // distribute according to the proportions we got
595 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
596 child->percent = 1.0 / children;
597 } else if (total != 1.0) {
598 TAILQ_FOREACH(child, &(con->nodes_head), nodes)
599 child->percent /= total;
604 * Toggles fullscreen mode for the given container. If there already is a
605 * fullscreen container on this workspace, fullscreen will be disabled and then
606 * enabled for the container the user wants to have in fullscreen mode.
609 void con_toggle_fullscreen(Con *con, int fullscreen_mode) {
610 if (con->type == CT_WORKSPACE) {
611 DLOG("You cannot make a workspace fullscreen.\n");
615 DLOG("toggling fullscreen for %p / %s\n", con, con->name);
617 if (con->fullscreen_mode == CF_NONE)
618 con_enable_fullscreen(con, fullscreen_mode);
620 con_disable_fullscreen(con);
624 * Sets the specified fullscreen mode for the given container, sends the
625 * “fullscreen_mode” event and changes the XCB fullscreen property of the
626 * container’s window, if any.
629 static void con_set_fullscreen_mode(Con *con, fullscreen_mode_t fullscreen_mode) {
630 con->fullscreen_mode = fullscreen_mode;
632 DLOG("mode now: %d\n", con->fullscreen_mode);
634 /* Send an ipc window "fullscreen_mode" event */
635 ipc_send_window_event("fullscreen_mode", con);
637 /* update _NET_WM_STATE if this container has a window */
638 /* TODO: when a window is assigned to a container which is already
639 * fullscreened, this state needs to be pushed to the client, too */
640 if (con->window == NULL)
644 unsigned int num = 0;
646 if (con->fullscreen_mode != CF_NONE)
647 values[num++] = A__NET_WM_STATE_FULLSCREEN;
649 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id,
650 A__NET_WM_STATE, XCB_ATOM_ATOM, 32, num, values);
654 * Enables fullscreen mode for the given container, if necessary.
656 * If the container’s mode is already CF_OUTPUT or CF_GLOBAL, the container is
657 * kept fullscreen but its mode is set to CF_GLOBAL and CF_OUTPUT,
660 * Other fullscreen containers will be disabled first, if they hide the new
664 void con_enable_fullscreen(Con *con, fullscreen_mode_t fullscreen_mode) {
665 if (con->type == CT_WORKSPACE) {
666 DLOG("You cannot make a workspace fullscreen.\n");
670 assert(fullscreen_mode == CF_GLOBAL || fullscreen_mode == CF_OUTPUT);
672 if (fullscreen_mode == CF_GLOBAL)
673 DLOG("enabling global fullscreen for %p / %s\n", con, con->name);
675 DLOG("enabling fullscreen for %p / %s\n", con, con->name);
677 if (con->fullscreen_mode == fullscreen_mode) {
678 DLOG("fullscreen already enabled for %p / %s\n", con, con->name);
682 Con *con_ws = con_get_workspace(con);
684 /* Disable any fullscreen container that would conflict the new one. */
685 Con *fullscreen = con_get_fullscreen_con(croot, CF_GLOBAL);
686 if (fullscreen == NULL)
687 fullscreen = con_get_fullscreen_con(con_ws, CF_OUTPUT);
688 if (fullscreen != NULL)
689 con_disable_fullscreen(fullscreen);
691 /* Set focus to new fullscreen container. Unless in global fullscreen mode
692 * and on another workspace restore focus afterwards.
693 * Switch to the container’s workspace if mode is global. */
694 Con *cur_ws = con_get_workspace(focused);
695 Con *old_focused = focused;
696 if (fullscreen_mode == CF_GLOBAL && cur_ws != con_ws)
697 workspace_show(con_ws);
699 if (fullscreen_mode != CF_GLOBAL && cur_ws != con_ws)
700 con_focus(old_focused);
702 con_set_fullscreen_mode(con, fullscreen_mode);
706 * Disables fullscreen mode for the given container regardless of the mode, if
710 void con_disable_fullscreen(Con *con) {
711 if (con->type == CT_WORKSPACE) {
712 DLOG("You cannot make a workspace fullscreen.\n");
716 DLOG("disabling fullscreen for %p / %s\n", con, con->name);
718 if (con->fullscreen_mode == CF_NONE) {
719 DLOG("fullscreen already disabled for %p / %s\n", con, con->name);
723 con_set_fullscreen_mode(con, CF_NONE);
726 static bool _con_move_to_con(Con *con, Con *target, bool behind_focused, bool fix_coordinates, bool dont_warp) {
727 Con *orig_target = target;
729 /* Prevent moving if this would violate the fullscreen focus restrictions. */
730 Con *target_ws = con_get_workspace(target);
731 if (!con_fullscreen_permits_focusing(target_ws)) {
732 LOG("Cannot move out of a fullscreen container");
736 if (con_is_floating(con)) {
737 DLOG("Using FLOATINGCON instead\n");
741 Con *source_ws = con_get_workspace(con);
743 if (con->type == CT_WORKSPACE) {
744 /* Re-parent all of the old workspace's floating windows. */
746 while (!TAILQ_EMPTY(&(source_ws->floating_head))) {
747 child = TAILQ_FIRST(&(source_ws->floating_head));
748 con_move_to_workspace(child, target_ws, true, true);
751 /* If there are no non-floating children, ignore the workspace. */
752 if (con_is_leaf(con))
755 con = workspace_encapsulate(con);
757 ELOG("Workspace failed to move its contents into a container!\n");
762 /* Save the urgency state so that we can restore it. */
763 bool urgent = con->urgent;
765 /* Save the current workspace. So we can call workspace_show() by the end
766 * of this function. */
767 Con *current_ws = con_get_workspace(focused);
769 Con *source_output = con_get_output(con),
770 *dest_output = con_get_output(target_ws);
772 /* 1: save the container which is going to be focused after the current
773 * container is moved away */
774 Con *focus_next = con_next_focused(con);
776 /* 2: we go up one level, but only when target is a normal container */
777 if (target->type != CT_WORKSPACE) {
778 DLOG("target originally = %p / %s / type %d\n", target, target->name, target->type);
779 target = target->parent;
782 /* 3: if the target container is floating, we get the workspace instead.
783 * Only tiling windows need to get inserted next to the current container.
785 Con *floatingcon = con_inside_floating(target);
786 if (floatingcon != NULL) {
787 DLOG("floatingcon, going up even further\n");
788 target = floatingcon->parent;
791 if (con->type == CT_FLOATING_CON) {
792 Con *ws = con_get_workspace(target);
793 DLOG("This is a floating window, using workspace %p / %s\n", ws, ws->name);
797 if (source_output != dest_output) {
798 /* Take the relative coordinates of the current output, then add them
799 * to the coordinate space of the correct output */
800 if (fix_coordinates && con->type == CT_FLOATING_CON) {
801 floating_fix_coordinates(con, &(source_output->rect), &(dest_output->rect));
803 DLOG("Not fixing coordinates, fix_coordinates flag = %d\n", fix_coordinates);
805 /* If moving to a visible workspace, call show so it can be considered
806 * focused. Must do before attaching because workspace_show checks to see
807 * if focused container is in its area. */
808 if (workspace_is_visible(target_ws)) {
809 workspace_show(target_ws);
811 /* Don’t warp if told so (when dragging floating windows with the
812 * mouse for example) */
816 x_set_warp_to(&(con->rect));
820 /* If moving a fullscreen container and the destination already has a
821 * fullscreen window on it, un-fullscreen the target's fullscreen con. */
822 Con *fullscreen = con_get_fullscreen_con(target_ws, CF_OUTPUT);
823 if (con->fullscreen_mode != CF_NONE && fullscreen != NULL) {
824 con_toggle_fullscreen(fullscreen, CF_OUTPUT);
828 DLOG("Re-attaching container to %p / %s\n", target, target->name);
829 /* 4: re-attach the con to the parent of this focused container */
830 Con *parent = con->parent;
832 _con_attach(con, target, behind_focused ? NULL : orig_target, !behind_focused);
834 /* 5: fix the percentages */
835 con_fix_percent(parent);
837 con_fix_percent(target);
839 /* 6: focus the con on the target workspace, but only within that
840 * workspace, that is, don’t move focus away if the target workspace is
842 * We don’t focus the con for i3 pseudo workspaces like __i3_scratch and
843 * we don’t focus when there is a fullscreen con on that workspace. */
844 if (!con_is_internal(target_ws) && !fullscreen) {
845 /* We need to save the focused workspace on the output in case the
846 * new workspace is hidden and it's necessary to immediately switch
847 * back to the originally-focused workspace. */
848 Con *old_focus = TAILQ_FIRST(&(output_get_content(dest_output)->focus_head));
849 con_focus(con_descend_focused(con));
851 /* Restore focus if the output's focused workspace has changed. */
852 if (con_get_workspace(focused) != old_focus)
853 con_focus(old_focus);
856 /* 7: when moving to another workspace, we leave the focus on the current
857 * workspace. (see also #809) */
859 /* Descend focus stack in case focus_next is a workspace which can
860 * occur if we move to the same workspace. Also show current workspace
861 * to ensure it is focused. */
862 workspace_show(current_ws);
864 /* Set focus only if con was on current workspace before moving.
865 * Otherwise we would give focus to some window on different workspace. */
866 if (source_ws == current_ws)
867 con_focus(con_descend_focused(focus_next));
869 /* 8. If anything within the container is associated with a startup sequence,
870 * delete it so child windows won't be created on the old workspace. */
871 struct Startup_Sequence *sequence;
872 xcb_get_property_cookie_t cookie;
873 xcb_get_property_reply_t *startup_id_reply;
875 if (!con_is_leaf(con)) {
877 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
881 cookie = xcb_get_property(conn, false, child->window->id,
882 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
883 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
885 sequence = startup_sequence_get(child->window, startup_id_reply, true);
886 if (sequence != NULL)
887 startup_sequence_delete(sequence);
892 cookie = xcb_get_property(conn, false, con->window->id,
893 A__NET_STARTUP_ID, XCB_GET_PROPERTY_TYPE_ANY, 0, 512);
894 startup_id_reply = xcb_get_property_reply(conn, cookie, NULL);
896 sequence = startup_sequence_get(con->window, startup_id_reply, true);
897 if (sequence != NULL)
898 startup_sequence_delete(sequence);
901 CALL(parent, on_remove_child);
903 /* 9. If the container was marked urgent, move the urgency hint. */
905 workspace_update_urgent_flag(source_ws);
906 con_set_urgency(con, true);
909 ipc_send_window_event("move", con);
914 * Moves the given container to the given mark.
917 bool con_move_to_mark(Con *con, const char *mark) {
918 Con *target = con_by_mark(mark);
919 if (target == NULL) {
920 DLOG("found no container with mark \"%s\"\n", mark);
924 /* For floating target containers, we just send the window to the same workspace. */
925 if (con_is_floating(target)) {
926 DLOG("target container is floating, moving container to target's workspace.\n");
927 con_move_to_workspace(con, con_get_workspace(target), true, false);
931 /* For split containers, we use the currently focused container within it.
932 * This allows setting marks on, e.g., tabbed containers which will move
933 * con to a new tab behind the focused tab. */
934 if (con_is_split(target)) {
935 DLOG("target is a split container, descending to the currently focused child.\n");
936 target = TAILQ_FIRST(&(target->focus_head));
940 DLOG("cannot move the container to itself, aborting.\n");
944 return _con_move_to_con(con, target, false, true, false);
948 * Moves the given container to the currently focused container on the given
951 * The fix_coordinates flag will translate the current coordinates (offset from
952 * the monitor position basically) to appropriate coordinates on the
953 * destination workspace.
954 * Not enabling this behaviour comes in handy when this function gets called by
955 * floating_maybe_reassign_ws, which will only "move" a floating window when it
956 * *already* changed its coordinates to a different output.
958 * The dont_warp flag disables pointer warping and will be set when this
959 * function is called while dragging a floating window.
961 * TODO: is there a better place for this function?
964 void con_move_to_workspace(Con *con, Con *workspace, bool fix_coordinates, bool dont_warp) {
965 assert(workspace->type == CT_WORKSPACE);
967 Con *source_ws = con_get_workspace(con);
968 if (workspace == source_ws) {
969 DLOG("Not moving, already there\n");
973 Con *target = con_descend_focused(workspace);
974 _con_move_to_con(con, target, true, fix_coordinates, dont_warp);
978 * Returns the orientation of the given container (for stacked containers,
979 * vertical orientation is used regardless of the actual orientation of the
983 orientation_t con_orientation(Con *con) {
984 switch (con->layout) {
986 /* stacking containers behave like they are in vertical orientation */
991 /* tabbed containers behave like they are in vertical orientation */
996 DLOG("Someone called con_orientation() on a con with L_DEFAULT, this is a bug in the code.\n");
1002 DLOG("con_orientation() called on dockarea/output (%d) container %p\n", con->layout, con);
1007 DLOG("con_orientation() ran into default\n");
1013 * Returns the container which will be focused next when the given container
1014 * is not available anymore. Called in tree_close and con_move_to_workspace
1015 * to properly restore focus.
1018 Con *con_next_focused(Con *con) {
1020 /* floating containers are attached to a workspace, so we focus either the
1021 * next floating container (if any) or the workspace itself. */
1022 if (con->type == CT_FLOATING_CON) {
1023 DLOG("selecting next for CT_FLOATING_CON\n");
1024 next = TAILQ_NEXT(con, floating_windows);
1025 DLOG("next = %p\n", next);
1027 next = TAILQ_PREV(con, floating_head, floating_windows);
1028 DLOG("using prev, next = %p\n", next);
1031 Con *ws = con_get_workspace(con);
1033 DLOG("no more floating containers for next = %p, restoring workspace focus\n", next);
1034 while (next != TAILQ_END(&(ws->focus_head)) && !TAILQ_EMPTY(&(next->focus_head))) {
1035 next = TAILQ_FIRST(&(next->focus_head));
1037 DLOG("skipping container itself, we want the next client\n");
1038 next = TAILQ_NEXT(next, focused);
1041 if (next == TAILQ_END(&(ws->focus_head))) {
1042 DLOG("Focus list empty, returning ws\n");
1046 /* Instead of returning the next CT_FLOATING_CON, we descend it to
1047 * get an actual window to focus. */
1048 next = con_descend_focused(next);
1053 /* dock clients cannot be focused, so we focus the workspace instead */
1054 if (con->parent->type == CT_DOCKAREA) {
1055 DLOG("selecting workspace for dock client\n");
1056 return con_descend_focused(output_get_content(con->parent->parent));
1059 /* if 'con' is not the first entry in the focus stack, use the first one as
1060 * it’s currently focused already */
1061 Con *first = TAILQ_FIRST(&(con->parent->focus_head));
1063 DLOG("Using first entry %p\n", first);
1066 /* try to focus the next container on the same level as this one or fall
1067 * back to its parent */
1068 if (!(next = TAILQ_NEXT(con, focused)))
1072 /* now go down the focus stack as far as
1073 * possible, excluding the current container */
1074 while (!TAILQ_EMPTY(&(next->focus_head)) &&
1075 TAILQ_FIRST(&(next->focus_head)) != con)
1076 next = TAILQ_FIRST(&(next->focus_head));
1082 * Get the next/previous container in the specified orientation. This may
1083 * travel up until it finds a container with suitable orientation.
1086 Con *con_get_next(Con *con, char way, orientation_t orientation) {
1087 DLOG("con_get_next(way=%c, orientation=%d)\n", way, orientation);
1088 /* 1: get the first parent with the same orientation */
1090 while (con_orientation(cur->parent) != orientation) {
1091 DLOG("need to go one level further up\n");
1092 if (cur->parent->type == CT_WORKSPACE) {
1093 LOG("that's a workspace, we can't go further up\n");
1099 /* 2: chose next (or previous) */
1102 next = TAILQ_NEXT(cur, nodes);
1103 /* if we are at the end of the list, we need to wrap */
1104 if (next == TAILQ_END(&(parent->nodes_head)))
1107 next = TAILQ_PREV(cur, nodes_head, nodes);
1108 /* if we are at the end of the list, we need to wrap */
1109 if (next == TAILQ_END(&(cur->nodes_head)))
1112 DLOG("next = %p\n", next);
1118 * Returns the focused con inside this client, descending the tree as far as
1119 * possible. This comes in handy when attaching a con to a workspace at the
1120 * currently focused position, for example.
1123 Con *con_descend_focused(Con *con) {
1125 while (next != focused && !TAILQ_EMPTY(&(next->focus_head)))
1126 next = TAILQ_FIRST(&(next->focus_head));
1131 * Returns the focused con inside this client, descending the tree as far as
1132 * possible. This comes in handy when attaching a con to a workspace at the
1133 * currently focused position, for example.
1135 * Works like con_descend_focused but considers only tiling cons.
1138 Con *con_descend_tiling_focused(Con *con) {
1142 if (next == focused)
1146 TAILQ_FOREACH(child, &(next->focus_head), focused) {
1147 if (child->type == CT_FLOATING_CON)
1153 } while (before != next && next != focused);
1158 * Returns the leftmost, rightmost, etc. container in sub-tree. For example, if
1159 * direction is D_LEFT, then we return the rightmost container and if direction
1160 * is D_RIGHT, we return the leftmost container. This is because if we are
1161 * moving D_LEFT, and thus want the rightmost container.
1164 Con *con_descend_direction(Con *con, direction_t direction) {
1167 int orientation = con_orientation(con);
1168 DLOG("con_descend_direction(%p, orientation %d, direction %d)\n", con, orientation, direction);
1169 if (direction == D_LEFT || direction == D_RIGHT) {
1170 if (orientation == HORIZ) {
1171 /* If the direction is horizontal, we can use either the first
1172 * (D_RIGHT) or the last con (D_LEFT) */
1173 if (direction == D_RIGHT)
1174 most = TAILQ_FIRST(&(con->nodes_head));
1176 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1177 } else if (orientation == VERT) {
1178 /* Wrong orientation. We use the last focused con. Within that con,
1179 * we recurse to chose the left/right con or at least the last
1181 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1182 if (current->type != CT_FLOATING_CON) {
1188 /* If the con has no orientation set, it’s not a split container
1189 * but a container with a client window, so stop recursing */
1194 if (direction == D_UP || direction == D_DOWN) {
1195 if (orientation == VERT) {
1196 /* If the direction is vertical, we can use either the first
1197 * (D_DOWN) or the last con (D_UP) */
1198 if (direction == D_UP)
1199 most = TAILQ_LAST(&(con->nodes_head), nodes_head);
1201 most = TAILQ_FIRST(&(con->nodes_head));
1202 } else if (orientation == HORIZ) {
1203 /* Wrong orientation. We use the last focused con. Within that con,
1204 * we recurse to chose the top/bottom con or at least the last
1206 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1207 if (current->type != CT_FLOATING_CON) {
1213 /* If the con has no orientation set, it’s not a split container
1214 * but a container with a client window, so stop recursing */
1221 return con_descend_direction(most, direction);
1225 * Returns a "relative" Rect which contains the amount of pixels that need to
1226 * be added to the original Rect to get the final position (obviously the
1227 * amount of pixels for normal, 1pixel and borderless are different).
1230 Rect con_border_style_rect(Con *con) {
1231 adjacent_t borders_to_hide = ADJ_NONE;
1232 int border_width = con->current_border_width;
1233 DLOG("The border width for con is set to: %d\n", con->current_border_width);
1235 if (con->current_border_width < 0) {
1236 if (con_is_floating(con)) {
1237 border_width = config.default_floating_border_width;
1239 border_width = config.default_border_width;
1242 DLOG("Effective border width is set to: %d\n", border_width);
1243 /* Shortcut to avoid calling con_adjacent_borders() on dock containers. */
1244 int border_style = con_border_style(con);
1245 if (border_style == BS_NONE)
1246 return (Rect){0, 0, 0, 0};
1247 borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
1248 if (border_style == BS_NORMAL) {
1249 result = (Rect){border_width, 0, -(2 * border_width), -(border_width)};
1251 result = (Rect){border_width, border_width, -(2 * border_width), -(2 * border_width)};
1254 /* Floating windows are never adjacent to any other window, so
1255 don’t hide their border(s). This prevents bug #998. */
1256 if (con_is_floating(con))
1259 if (borders_to_hide & ADJ_LEFT_SCREEN_EDGE) {
1260 result.x -= border_width;
1261 result.width += border_width;
1263 if (borders_to_hide & ADJ_RIGHT_SCREEN_EDGE) {
1264 result.width += border_width;
1266 if (borders_to_hide & ADJ_UPPER_SCREEN_EDGE && (border_style != BS_NORMAL)) {
1267 result.y -= border_width;
1268 result.height += border_width;
1270 if (borders_to_hide & ADJ_LOWER_SCREEN_EDGE) {
1271 result.height += border_width;
1277 * Returns adjacent borders of the window. We need this if hide_edge_borders is
1280 adjacent_t con_adjacent_borders(Con *con) {
1281 adjacent_t result = ADJ_NONE;
1282 Con *workspace = con_get_workspace(con);
1283 if (con->rect.x == workspace->rect.x)
1284 result |= ADJ_LEFT_SCREEN_EDGE;
1285 if (con->rect.x + con->rect.width == workspace->rect.x + workspace->rect.width)
1286 result |= ADJ_RIGHT_SCREEN_EDGE;
1287 if (con->rect.y == workspace->rect.y)
1288 result |= ADJ_UPPER_SCREEN_EDGE;
1289 if (con->rect.y + con->rect.height == workspace->rect.y + workspace->rect.height)
1290 result |= ADJ_LOWER_SCREEN_EDGE;
1295 * Use this function to get a container’s border style. This is important
1296 * because when inside a stack, the border style is always BS_NORMAL.
1297 * For tabbed mode, the same applies, with one exception: when the container is
1298 * borderless and the only element in the tabbed container, the border is not
1301 * For children of a CT_DOCKAREA, the border style is always none.
1304 int con_border_style(Con *con) {
1305 Con *fs = con_get_fullscreen_con(con->parent, CF_OUTPUT);
1307 DLOG("this one is fullscreen! overriding BS_NONE\n");
1311 if (con->parent->layout == L_STACKED)
1312 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1314 if (con->parent->layout == L_TABBED && con->border_style != BS_NORMAL)
1315 return (con_num_children(con->parent) == 1 ? con->border_style : BS_NORMAL);
1317 if (con->parent->type == CT_DOCKAREA)
1320 return con->border_style;
1324 * Sets the given border style on con, correctly keeping the position/size of a
1328 void con_set_border_style(Con *con, int border_style, int border_width) {
1329 /* Handle the simple case: non-floating containerns */
1330 if (!con_is_floating(con)) {
1331 con->border_style = border_style;
1332 con->current_border_width = border_width;
1336 /* For floating containers, we want to keep the position/size of the
1337 * *window* itself. We first add the border pixels to con->rect to make
1338 * con->rect represent the absolute position of the window (same for
1339 * parent). Then, we change the border style and subtract the new border
1340 * pixels. For the parent, we do the same also for the decoration. */
1341 DLOG("This is a floating container\n");
1343 Con *parent = con->parent;
1344 Rect bsr = con_border_style_rect(con);
1345 int deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1347 con->rect = rect_add(con->rect, bsr);
1348 parent->rect = rect_add(parent->rect, bsr);
1349 parent->rect.y += deco_height;
1350 parent->rect.height -= deco_height;
1352 /* Change the border style, get new border/decoration values. */
1353 con->border_style = border_style;
1354 con->current_border_width = border_width;
1355 bsr = con_border_style_rect(con);
1356 deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
1358 con->rect = rect_sub(con->rect, bsr);
1359 parent->rect = rect_sub(parent->rect, bsr);
1360 parent->rect.y -= deco_height;
1361 parent->rect.height += deco_height;
1365 * This function changes the layout of a given container. Use it to handle
1366 * special cases like changing a whole workspace to stacked/tabbed (creates a
1367 * new split container before).
1370 void con_set_layout(Con *con, layout_t layout) {
1371 DLOG("con_set_layout(%p, %d), con->type = %d\n",
1372 con, layout, con->type);
1374 /* Users can focus workspaces, but not any higher in the hierarchy.
1375 * Focus on the workspace is a special case, since in every other case, the
1376 * user means "change the layout of the parent split container". */
1377 if (con->type != CT_WORKSPACE)
1380 /* We fill in last_split_layout when switching to a different layout
1381 * since there are many places in the code that don’t use
1382 * con_set_layout(). */
1383 if (con->layout == L_SPLITH || con->layout == L_SPLITV)
1384 con->last_split_layout = con->layout;
1386 /* When the container type is CT_WORKSPACE, the user wants to change the
1387 * whole workspace into stacked/tabbed mode. To do this and still allow
1388 * intuitive operations (like level-up and then opening a new window), we
1389 * need to create a new split container. */
1390 if (con->type == CT_WORKSPACE &&
1391 (layout == L_STACKED || layout == L_TABBED)) {
1392 if (con_num_children(con) == 0) {
1393 DLOG("Setting workspace_layout to %d\n", layout);
1394 con->workspace_layout = layout;
1396 DLOG("Creating new split container\n");
1397 /* 1: create a new split container */
1398 Con *new = con_new(NULL, NULL);
1401 /* 2: Set the requested layout on the split container and mark it as
1403 new->layout = layout;
1404 new->last_split_layout = con->last_split_layout;
1406 /* Save the container that was focused before we move containers
1407 * around, but only if the container is visible (otherwise focus
1408 * will be restored properly automatically when switching). */
1409 Con *old_focused = TAILQ_FIRST(&(con->focus_head));
1410 if (old_focused == TAILQ_END(&(con->focus_head)))
1412 if (old_focused != NULL &&
1413 !workspace_is_visible(con_get_workspace(old_focused)))
1416 /* 3: move the existing cons of this workspace below the new con */
1417 DLOG("Moving cons\n");
1419 while (!TAILQ_EMPTY(&(con->nodes_head))) {
1420 child = TAILQ_FIRST(&(con->nodes_head));
1422 con_attach(child, new, true);
1425 /* 4: attach the new split container to the workspace */
1426 DLOG("Attaching new split to ws\n");
1427 con_attach(new, con, false);
1430 con_focus(old_focused);
1432 tree_flatten(croot);
1434 con_force_split_parents_redraw(con);
1438 if (layout == L_DEFAULT) {
1439 /* Special case: the layout formerly known as "default" (in combination
1440 * with an orientation). Since we switched to splith/splitv layouts,
1441 * using the "default" layout (which "only" should happen when using
1442 * legacy configs) is using the last split layout (either splith or
1443 * splitv) in order to still do the same thing. */
1444 con->layout = con->last_split_layout;
1445 /* In case last_split_layout was not initialized… */
1446 if (con->layout == L_DEFAULT)
1447 con->layout = L_SPLITH;
1449 con->layout = layout;
1451 con_force_split_parents_redraw(con);
1455 * This function toggles the layout of a given container. toggle_mode can be
1456 * either 'default' (toggle only between stacked/tabbed/last_split_layout),
1457 * 'split' (toggle only between splitv/splith) or 'all' (toggle between all
1461 void con_toggle_layout(Con *con, const char *toggle_mode) {
1463 /* Users can focus workspaces, but not any higher in the hierarchy.
1464 * Focus on the workspace is a special case, since in every other case, the
1465 * user means "change the layout of the parent split container". */
1466 if (con->type != CT_WORKSPACE)
1467 parent = con->parent;
1468 DLOG("con_toggle_layout(%p, %s), parent = %p\n", con, toggle_mode, parent);
1470 if (strcmp(toggle_mode, "split") == 0) {
1471 /* Toggle between splits. When the current layout is not a split
1472 * layout, we just switch back to last_split_layout. Otherwise, we
1473 * change to the opposite split layout. */
1474 if (parent->layout != L_SPLITH && parent->layout != L_SPLITV)
1475 con_set_layout(con, parent->last_split_layout);
1477 if (parent->layout == L_SPLITH)
1478 con_set_layout(con, L_SPLITV);
1480 con_set_layout(con, L_SPLITH);
1483 if (parent->layout == L_STACKED)
1484 con_set_layout(con, L_TABBED);
1485 else if (parent->layout == L_TABBED) {
1486 if (strcmp(toggle_mode, "all") == 0)
1487 con_set_layout(con, L_SPLITH);
1489 con_set_layout(con, parent->last_split_layout);
1490 } else if (parent->layout == L_SPLITH || parent->layout == L_SPLITV) {
1491 if (strcmp(toggle_mode, "all") == 0) {
1492 /* When toggling through all modes, we toggle between
1493 * splith/splitv, whereas normally we just directly jump to
1495 if (parent->layout == L_SPLITH)
1496 con_set_layout(con, L_SPLITV);
1498 con_set_layout(con, L_STACKED);
1500 con_set_layout(con, L_STACKED);
1507 * Callback which will be called when removing a child from the given con.
1508 * Kills the container if it is empty and replaces it with the child if there
1509 * is exactly one child.
1512 static void con_on_remove_child(Con *con) {
1513 DLOG("on_remove_child\n");
1515 /* Every container 'above' (in the hierarchy) the workspace content should
1516 * not be closed when the last child was removed */
1517 if (con->type == CT_OUTPUT ||
1518 con->type == CT_ROOT ||
1519 con->type == CT_DOCKAREA ||
1520 (con->parent != NULL && con->parent->type == CT_OUTPUT)) {
1521 DLOG("not handling, type = %d, name = %s\n", con->type, con->name);
1525 /* For workspaces, close them only if they're not visible anymore */
1526 if (con->type == CT_WORKSPACE) {
1527 if (TAILQ_EMPTY(&(con->focus_head)) && !workspace_is_visible(con)) {
1528 LOG("Closing old workspace (%p / %s), it is empty\n", con, con->name);
1529 yajl_gen gen = ipc_marshal_workspace_event("empty", con, NULL);
1530 tree_close(con, DONT_KILL_WINDOW, false, false);
1532 const unsigned char *payload;
1534 y(get_buf, &payload, &length);
1535 ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, (const char *)payload);
1542 con_force_split_parents_redraw(con);
1543 con->urgent = con_has_urgent_child(con);
1544 con_update_parents_urgency(con);
1546 /* TODO: check if this container would swallow any other client and
1547 * don’t close it automatically. */
1548 int children = con_num_children(con);
1549 if (children == 0) {
1550 DLOG("Container empty, closing\n");
1551 tree_close(con, DONT_KILL_WINDOW, false, false);
1557 * Determines the minimum size of the given con by looking at its children (for
1558 * split/stacked/tabbed cons). Will be called when resizing floating cons
1561 Rect con_minimum_size(Con *con) {
1562 DLOG("Determining minimum size for con %p\n", con);
1564 if (con_is_leaf(con)) {
1565 DLOG("leaf node, returning 75x50\n");
1566 return (Rect){0, 0, 75, 50};
1569 if (con->type == CT_FLOATING_CON) {
1570 DLOG("floating con\n");
1571 Con *child = TAILQ_FIRST(&(con->nodes_head));
1572 return con_minimum_size(child);
1575 if (con->layout == L_STACKED || con->layout == L_TABBED) {
1576 uint32_t max_width = 0, max_height = 0, deco_height = 0;
1578 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1579 Rect min = con_minimum_size(child);
1580 deco_height += child->deco_rect.height;
1581 max_width = max(max_width, min.width);
1582 max_height = max(max_height, min.height);
1584 DLOG("stacked/tabbed now, returning %d x %d + deco_rect = %d\n",
1585 max_width, max_height, deco_height);
1586 return (Rect){0, 0, max_width, max_height + deco_height};
1589 /* For horizontal/vertical split containers we sum up the width (h-split)
1590 * or height (v-split) and use the maximum of the height (h-split) or width
1591 * (v-split) as minimum size. */
1592 if (con_is_split(con)) {
1593 uint32_t width = 0, height = 0;
1595 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1596 Rect min = con_minimum_size(child);
1597 if (con->layout == L_SPLITH) {
1599 height = max(height, min.height);
1601 height += min.height;
1602 width = max(width, min.width);
1605 DLOG("split container, returning width = %d x height = %d\n", width, height);
1606 return (Rect){0, 0, width, height};
1609 ELOG("Unhandled case, type = %d, layout = %d, split = %d\n",
1610 con->type, con->layout, con_is_split(con));
1615 * Returns true if changing the focus to con would be allowed considering
1616 * the fullscreen focus constraints. Specifically, if a fullscreen container or
1617 * any of its descendants is focused, this function returns true if and only if
1618 * focusing con would mean that focus would still be visible on screen, i.e.,
1619 * the newly focused container would not be obscured by a fullscreen container.
1621 * In the simplest case, if a fullscreen container or any of its descendants is
1622 * fullscreen, this functions returns true if con is the fullscreen container
1623 * itself or any of its descendants, as this means focus wouldn't escape the
1624 * boundaries of the fullscreen container.
1626 * In case the fullscreen container is of type CF_OUTPUT, this function returns
1627 * true if con is on a different workspace, as focus wouldn't be obscured by
1628 * the fullscreen container that is constrained to a different workspace.
1630 * Note that this same logic can be applied to moving containers. If a
1631 * container can be focused under the fullscreen focus constraints, it can also
1632 * become a parent or sibling to the currently focused container.
1635 bool con_fullscreen_permits_focusing(Con *con) {
1636 /* No focus, no problem. */
1640 /* Find the first fullscreen ascendent. */
1642 while (fs && fs->fullscreen_mode == CF_NONE)
1645 /* fs must be non-NULL since the workspace con doesn’t have CF_NONE and
1646 * there always has to be a workspace con in the hierarchy. */
1648 /* The most common case is we hit the workspace level. In this
1649 * situation, changing focus is also harmless. */
1650 assert(fs->fullscreen_mode != CF_NONE);
1651 if (fs->type == CT_WORKSPACE)
1654 /* Allow it if the container itself is the fullscreen container. */
1658 /* If fullscreen is per-output, the focus being in a different workspace is
1659 * sufficient to guarantee that change won't leave fullscreen in bad shape. */
1660 if (fs->fullscreen_mode == CF_OUTPUT &&
1661 con_get_workspace(con) != con_get_workspace(fs)) {
1665 /* Allow it only if the container to be focused is contained within the
1666 * current fullscreen container. */
1668 if (con->parent == fs)
1673 /* Focusing con would hide it behind a fullscreen window, disallow it. */
1679 * Checks if the given container has an urgent child.
1682 bool con_has_urgent_child(Con *con) {
1685 if (con_is_leaf(con))
1688 /* We are not interested in floating windows since they can only be
1689 * attached to a workspace → nodes_head instead of focus_head */
1690 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1691 if (con_has_urgent_child(child))
1699 * Make all parent containers urgent if con is urgent or clear the urgent flag
1700 * of all parent containers if there are no more urgent children left.
1703 void con_update_parents_urgency(Con *con) {
1704 Con *parent = con->parent;
1706 bool new_urgency_value = con->urgent;
1707 while (parent && parent->type != CT_WORKSPACE && parent->type != CT_DOCKAREA) {
1708 if (new_urgency_value) {
1709 parent->urgent = true;
1711 /* We can only reset the urgency when the parent
1712 * has no other urgent children */
1713 if (!con_has_urgent_child(parent))
1714 parent->urgent = false;
1716 parent = parent->parent;
1721 * Set urgency flag to the container, all the parent containers and the workspace.
1724 void con_set_urgency(Con *con, bool urgent) {
1725 if (focused == con) {
1726 DLOG("Ignoring urgency flag for current client\n");
1727 con->window->urgent.tv_sec = 0;
1728 con->window->urgent.tv_usec = 0;
1732 if (con->urgency_timer == NULL) {
1733 con->urgent = urgent;
1735 DLOG("Discarding urgency WM_HINT because timer is running\n");
1740 gettimeofday(&con->window->urgent, NULL);
1742 con->window->urgent.tv_sec = 0;
1743 con->window->urgent.tv_usec = 0;
1747 con_update_parents_urgency(con);
1750 /* Set the urgency flag on the workspace, if a workspace could be found
1751 * (for dock clients, that is not the case). */
1752 if ((ws = con_get_workspace(con)) != NULL)
1753 workspace_update_urgent_flag(ws);
1755 if (con->urgent == urgent) {
1756 LOG("Urgency flag changed to %d\n", con->urgent);
1757 ipc_send_window_event("urgent", con);
1762 * Create a string representing the subtree under con.
1765 char *con_get_tree_representation(Con *con) {
1766 /* this code works as follows:
1767 * 1) create a string with the layout type (D/V/H/T/S) and an opening bracket
1768 * 2) append the tree representation of the children to the string
1769 * 3) add closing bracket
1771 * The recursion ends when we hit a leaf, in which case we return the
1772 * class_instance of the contained window.
1775 /* end of recursion */
1776 if (con_is_leaf(con)) {
1778 return sstrdup("nowin");
1780 if (!con->window->class_instance)
1781 return sstrdup("noinstance");
1783 return sstrdup(con->window->class_instance);
1787 /* 1) add the Layout type to buf */
1788 if (con->layout == L_DEFAULT)
1789 buf = sstrdup("D[");
1790 else if (con->layout == L_SPLITV)
1791 buf = sstrdup("V[");
1792 else if (con->layout == L_SPLITH)
1793 buf = sstrdup("H[");
1794 else if (con->layout == L_TABBED)
1795 buf = sstrdup("T[");
1796 else if (con->layout == L_STACKED)
1797 buf = sstrdup("S[");
1799 ELOG("BUG: Code not updated to account for new layout type\n");
1803 /* 2) append representation of children */
1805 TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
1806 char *child_txt = con_get_tree_representation(child);
1809 sasprintf(&tmp_buf, "%s%s%s", buf,
1810 (TAILQ_FIRST(&(con->nodes_head)) == child ? "" : " "), child_txt);
1815 /* 3) close the brackets */
1817 sasprintf(&complete_buf, "%s]", buf);
1820 return complete_buf;