2 * vim:ts=4:sw=4:expandtab
4 * i3 - an improved dynamic tiling window manager
5 * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
7 * x.c: Interface to X11, transfers our in-memory state to X11 (see also
8 * render.c). Basically a big state machine.
14 #define MAX(x, y) ((x) > (y) ? (x) : (y))
17 xcb_window_t ewmh_window;
19 /* Stores the X11 window ID of the currently focused window */
20 xcb_window_t focused_id = XCB_NONE;
22 /* Because 'focused_id' might be reset to force input focus, we separately keep
23 * track of the X11 window ID to be able to always tell whether the focused
24 * window actually changed. */
25 static xcb_window_t last_focused = XCB_NONE;
27 /* Stores coordinates to warp mouse pointer to if set */
31 * Describes the X11 state we may modify (map state, position, window stack).
32 * There is one entry per container. The state represents the current situation
33 * as X11 sees it (with the exception of the order in the state_head CIRCLEQ,
34 * which represents the order that will be pushed to X11, while old_state_head
35 * represents the current order). It will be updated in x_push_changes().
38 typedef struct con_state {
45 /* The con for which this state is. */
48 /* For reparenting, we have a flag (need_reparent) and the X ID of the old
49 * frame this window was in. The latter is necessary because we need to
50 * ignore UnmapNotify events (by changing the window event mask). */
52 xcb_window_t old_frame;
54 /* The container was child of floating container during the previous call of
55 * x_push_node(). This is used to remove the shape when the container is no
66 CIRCLEQ_ENTRY(con_state)
69 CIRCLEQ_ENTRY(con_state)
72 TAILQ_ENTRY(con_state)
73 initial_mapping_order;
76 CIRCLEQ_HEAD(state_head, con_state)
78 CIRCLEQ_HEAD_INITIALIZER(state_head);
80 CIRCLEQ_HEAD(old_state_head, con_state)
82 CIRCLEQ_HEAD_INITIALIZER(old_state_head);
84 TAILQ_HEAD(initial_mapping_head, con_state)
85 initial_mapping_head =
86 TAILQ_HEAD_INITIALIZER(initial_mapping_head);
89 * Returns the container state for the given frame. This function always
90 * returns a container state (otherwise, there is a bug in the code and the
91 * container state of a container for which x_con_init() was not called was
95 static con_state *state_for_frame(xcb_window_t window) {
97 CIRCLEQ_FOREACH(state, &state_head, state)
98 if (state->id == window)
101 /* TODO: better error handling? */
102 ELOG("No state found for window 0x%08x\n", window);
108 * Changes the atoms on the root window and the windows themselves to properly
109 * reflect the current focus for ewmh compliance.
112 static void change_ewmh_focus(xcb_window_t new_focus, xcb_window_t old_focus) {
113 if (new_focus == old_focus) {
117 ewmh_update_active_window(new_focus);
119 if (new_focus != XCB_WINDOW_NONE) {
120 ewmh_update_focused(new_focus, true);
123 if (old_focus != XCB_WINDOW_NONE) {
124 ewmh_update_focused(old_focus, false);
129 * Initializes the X11 part for the given container. Called exactly once for
130 * every container from con_new().
133 void x_con_init(Con *con) {
134 /* TODO: maybe create the window when rendering first? we could then even
135 * get the initial geometry right */
140 xcb_visualid_t visual = get_visualid_by_depth(con->depth);
141 xcb_colormap_t win_colormap;
142 if (con->depth != root_depth) {
143 /* We need to create a custom colormap. */
144 win_colormap = xcb_generate_id(conn);
145 xcb_create_colormap(conn, XCB_COLORMAP_ALLOC_NONE, win_colormap, root, visual);
146 con->colormap = win_colormap;
148 /* Use the default colormap. */
149 win_colormap = colormap;
150 con->colormap = XCB_NONE;
153 /* We explicitly set a background color and border color (even though we
154 * don’t even have a border) because the X11 server requires us to when
155 * using 32 bit color depths, see
156 * https://stackoverflow.com/questions/3645632 */
157 mask |= XCB_CW_BACK_PIXEL;
158 values[0] = root_screen->black_pixel;
160 mask |= XCB_CW_BORDER_PIXEL;
161 values[1] = root_screen->black_pixel;
163 /* our own frames should not be managed */
164 mask |= XCB_CW_OVERRIDE_REDIRECT;
167 /* see include/xcb.h for the FRAME_EVENT_MASK */
168 mask |= XCB_CW_EVENT_MASK;
169 values[3] = FRAME_EVENT_MASK & ~XCB_EVENT_MASK_ENTER_WINDOW;
171 mask |= XCB_CW_COLORMAP;
172 values[4] = win_colormap;
174 Rect dims = {-15, -15, 10, 10};
175 xcb_window_t frame_id = create_window(conn, dims, con->depth, visual, XCB_WINDOW_CLASS_INPUT_OUTPUT, XCURSOR_CURSOR_POINTER, false, mask, values);
176 draw_util_surface_init(conn, &(con->frame), frame_id, get_visualtype_by_id(visual), dims.width, dims.height);
177 xcb_change_property(conn,
178 XCB_PROP_MODE_REPLACE,
183 (strlen("i3-frame") + 1) * 2,
184 "i3-frame\0i3-frame\0");
186 struct con_state *state = scalloc(1, sizeof(struct con_state));
187 state->id = con->frame.id;
188 state->mapped = false;
189 state->initial = true;
190 DLOG("Adding window 0x%08x to lists\n", state->id);
191 CIRCLEQ_INSERT_HEAD(&state_head, state, state);
192 CIRCLEQ_INSERT_HEAD(&old_state_head, state, old_state);
193 TAILQ_INSERT_TAIL(&initial_mapping_head, state, initial_mapping_order);
194 DLOG("adding new state for window id 0x%08x\n", state->id);
198 * Re-initializes the associated X window state for this container. You have
199 * to call this when you assign a client to an empty container to ensure that
200 * its state gets updated correctly.
203 void x_reinit(Con *con) {
204 struct con_state *state;
206 if ((state = state_for_frame(con->frame.id)) == NULL) {
207 ELOG("window state not found\n");
211 DLOG("resetting state %p to initial\n", state);
212 state->initial = true;
213 state->child_mapped = false;
215 memset(&(state->window_rect), 0, sizeof(Rect));
219 * Reparents the child window of the given container (necessary for sticky
220 * containers). The reparenting happens in the next call of x_push_changes().
223 void x_reparent_child(Con *con, Con *old) {
224 struct con_state *state;
225 if ((state = state_for_frame(con->frame.id)) == NULL) {
226 ELOG("window state for con not found\n");
230 state->need_reparent = true;
231 state->old_frame = old->frame.id;
235 * Moves a child window from Container src to Container dest.
238 void x_move_win(Con *src, Con *dest) {
239 struct con_state *state_src, *state_dest;
241 if ((state_src = state_for_frame(src->frame.id)) == NULL) {
242 ELOG("window state for src not found\n");
246 if ((state_dest = state_for_frame(dest->frame.id)) == NULL) {
247 ELOG("window state for dest not found\n");
251 state_dest->con = state_src->con;
252 state_src->con = NULL;
254 Rect zero = {0, 0, 0, 0};
255 if (memcmp(&(state_dest->window_rect), &(zero), sizeof(Rect)) == 0) {
256 memcpy(&(state_dest->window_rect), &(state_src->window_rect), sizeof(Rect));
257 DLOG("COPYING RECT\n");
261 static void _x_con_kill(Con *con) {
264 if (con->colormap != XCB_NONE) {
265 xcb_free_colormap(conn, con->colormap);
268 draw_util_surface_free(conn, &(con->frame));
269 draw_util_surface_free(conn, &(con->frame_buffer));
270 xcb_free_pixmap(conn, con->frame_buffer.id);
271 state = state_for_frame(con->frame.id);
272 CIRCLEQ_REMOVE(&state_head, state, state);
273 CIRCLEQ_REMOVE(&old_state_head, state, old_state);
274 TAILQ_REMOVE(&initial_mapping_head, state, initial_mapping_order);
278 /* Invalidate focused_id to correctly focus new windows with the same ID */
279 focused_id = last_focused = XCB_NONE;
283 * Kills the window decoration associated with the given container.
286 void x_con_kill(Con *con) {
288 xcb_destroy_window(conn, con->frame.id);
292 * Completely reinitializes the container's frame, without destroying the old window.
295 void x_con_reframe(Con *con) {
301 * Returns true if the client supports the given protocol atom (like WM_DELETE_WINDOW)
304 bool window_supports_protocol(xcb_window_t window, xcb_atom_t atom) {
305 xcb_get_property_cookie_t cookie;
306 xcb_icccm_get_wm_protocols_reply_t protocols;
309 cookie = xcb_icccm_get_wm_protocols(conn, window, A_WM_PROTOCOLS);
310 if (xcb_icccm_get_wm_protocols_reply(conn, cookie, &protocols, NULL) != 1)
313 /* Check if the client’s protocols have the requested atom set */
314 for (uint32_t i = 0; i < protocols.atoms_len; i++)
315 if (protocols.atoms[i] == atom)
318 xcb_icccm_get_wm_protocols_reply_wipe(&protocols);
324 * Kills the given X11 window using WM_DELETE_WINDOW (if supported).
327 void x_window_kill(xcb_window_t window, kill_window_t kill_window) {
328 /* if this window does not support WM_DELETE_WINDOW, we kill it the hard way */
329 if (!window_supports_protocol(window, A_WM_DELETE_WINDOW)) {
330 if (kill_window == KILL_WINDOW) {
331 LOG("Killing specific window 0x%08x\n", window);
332 xcb_destroy_window(conn, window);
334 LOG("Killing the X11 client which owns window 0x%08x\n", window);
335 xcb_kill_client(conn, window);
340 /* Every X11 event is 32 bytes long. Therefore, XCB will copy 32 bytes.
341 * In order to properly initialize these bytes, we allocate 32 bytes even
342 * though we only need less for an xcb_configure_notify_event_t */
343 void *event = scalloc(32, 1);
344 xcb_client_message_event_t *ev = event;
346 ev->response_type = XCB_CLIENT_MESSAGE;
348 ev->type = A_WM_PROTOCOLS;
350 ev->data.data32[0] = A_WM_DELETE_WINDOW;
351 ev->data.data32[1] = XCB_CURRENT_TIME;
353 LOG("Sending WM_DELETE to the client\n");
354 xcb_send_event(conn, false, window, XCB_EVENT_MASK_NO_EVENT, (char *)ev);
359 static void x_draw_title_border(Con *con, struct deco_render_params *p) {
360 assert(con->parent != NULL);
362 Rect *dr = &(con->deco_rect);
365 draw_util_rectangle(&(con->parent->frame_buffer), p->color->border,
366 dr->x, dr->y, 1, dr->height);
369 draw_util_rectangle(&(con->parent->frame_buffer), p->color->border,
370 dr->x + dr->width - 1, dr->y, 1, dr->height);
373 draw_util_rectangle(&(con->parent->frame_buffer), p->color->border,
374 dr->x, dr->y, dr->width, 1);
377 draw_util_rectangle(&(con->parent->frame_buffer), p->color->border,
378 dr->x, dr->y + dr->height - 1, dr->width, 1);
381 static void x_draw_decoration_after_title(Con *con, struct deco_render_params *p) {
382 assert(con->parent != NULL);
384 Rect *dr = &(con->deco_rect);
386 /* Redraw the right border to cut off any text that went past it.
387 * This is necessary when the text was drawn using XCB since cutting text off
388 * automatically does not work there. For pango rendering, this isn't necessary. */
389 if (!font_is_pango()) {
390 /* We actually only redraw the far right two pixels as that is the
391 * distance we keep from the edge (not the entire border width).
392 * Redrawing the entire border would cause text to be cut off. */
393 draw_util_rectangle(&(con->parent->frame_buffer), p->color->background,
394 dr->x + dr->width - 2 * logical_px(1),
400 /* Redraw the border. */
401 x_draw_title_border(con, p);
405 * Get rectangles representing the border around the child window. Some borders
406 * are adjacent to the screen-edge and thus not returned. Return value is the
407 * number of rectangles.
410 static size_t x_get_border_rectangles(Con *con, xcb_rectangle_t rectangles[4]) {
412 int border_style = con_border_style(con);
414 if (border_style != BS_NONE && con_is_leaf(con)) {
415 adjacent_t borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
416 Rect br = con_border_style_rect(con);
418 if (!(borders_to_hide & ADJ_LEFT_SCREEN_EDGE)) {
419 rectangles[count++] = (xcb_rectangle_t){
423 .height = con->rect.height,
426 if (!(borders_to_hide & ADJ_RIGHT_SCREEN_EDGE)) {
427 rectangles[count++] = (xcb_rectangle_t){
428 .x = con->rect.width + (br.width + br.x),
430 .width = -(br.width + br.x),
431 .height = con->rect.height,
434 if (!(borders_to_hide & ADJ_LOWER_SCREEN_EDGE)) {
435 rectangles[count++] = (xcb_rectangle_t){
437 .y = con->rect.height + (br.height + br.y),
438 .width = con->rect.width + br.width,
439 .height = -(br.height + br.y),
442 /* pixel border have an additional line at the top */
443 if (border_style == BS_PIXEL && !(borders_to_hide & ADJ_UPPER_SCREEN_EDGE)) {
444 rectangles[count++] = (xcb_rectangle_t){
447 .width = con->rect.width + br.width,
457 * Draws the decoration of the given container onto its parent.
460 void x_draw_decoration(Con *con) {
461 Con *parent = con->parent;
462 bool leaf = con_is_leaf(con);
464 /* This code needs to run for:
466 * • non-leaf containers which are in a stacked/tabbed container
468 * It does not need to run for:
469 * • direct children of outputs or dockareas
470 * • floating containers (they don’t have a decoration)
473 parent->layout != L_STACKED &&
474 parent->layout != L_TABBED) ||
475 parent->type == CT_OUTPUT ||
476 parent->type == CT_DOCKAREA ||
477 con->type == CT_FLOATING_CON)
480 /* Skip containers whose height is 0 (for example empty dockareas) */
481 if (con->rect.height == 0)
484 /* Skip containers whose pixmap has not yet been created (can happen when
485 * decoration rendering happens recursively for a window for which
486 * x_push_node() was not yet called) */
487 if (leaf && con->frame_buffer.id == XCB_NONE)
490 /* 1: build deco_params and compare with cache */
491 struct deco_render_params *p = scalloc(1, sizeof(struct deco_render_params));
493 /* find out which colors to use */
495 p->color = &config.client.urgent;
496 else if (con == focused || con_inside_focused(con))
497 p->color = &config.client.focused;
498 else if (con == TAILQ_FIRST(&(parent->focus_head)))
499 p->color = &config.client.focused_inactive;
501 p->color = &config.client.unfocused;
503 p->border_style = con_border_style(con);
505 Rect *r = &(con->rect);
506 Rect *w = &(con->window_rect);
507 p->con_rect = (struct width_height){r->width, r->height};
508 p->con_window_rect = (struct width_height){w->width, w->height};
509 p->con_deco_rect = con->deco_rect;
510 p->background = config.client.background;
511 p->con_is_leaf = con_is_leaf(con);
512 p->parent_layout = con->parent->layout;
514 if (con->deco_render_params != NULL &&
515 (con->window == NULL || !con->window->name_x_changed) &&
516 !parent->pixmap_recreated &&
517 !con->pixmap_recreated &&
518 !con->mark_changed &&
519 memcmp(p, con->deco_render_params, sizeof(struct deco_render_params)) == 0) {
525 while ((next = TAILQ_NEXT(next, nodes))) {
526 FREE(next->deco_render_params);
529 FREE(con->deco_render_params);
530 con->deco_render_params = p;
532 if (con->window != NULL && con->window->name_x_changed)
533 con->window->name_x_changed = false;
535 parent->pixmap_recreated = false;
536 con->pixmap_recreated = false;
537 con->mark_changed = false;
539 /* 2: draw the client.background, but only for the parts around the window_rect */
540 if (con->window != NULL) {
542 draw_util_rectangle(&(con->frame_buffer), config.client.background,
543 0, 0, r->width, w->y);
545 draw_util_rectangle(&(con->frame_buffer), config.client.background,
546 0, w->y + w->height, r->width, r->height - (w->y + w->height));
548 draw_util_rectangle(&(con->frame_buffer), config.client.background,
549 0, 0, w->x, r->height);
551 draw_util_rectangle(&(con->frame_buffer), config.client.background,
552 w->x + w->width, 0, r->width - (w->x + w->width), r->height);
555 /* 3: draw a rectangle in border color around the client */
556 if (p->border_style != BS_NONE && p->con_is_leaf) {
557 /* Fill the border. We don’t just fill the whole rectangle because some
558 * children are not freely resizable and we want their background color
559 * to "shine through". */
560 xcb_rectangle_t rectangles[4];
561 size_t rectangles_count = x_get_border_rectangles(con, rectangles);
562 for (size_t i = 0; i < rectangles_count; i++) {
563 draw_util_rectangle(&(con->frame_buffer), p->color->child_border,
567 rectangles[i].height);
570 /* Highlight the side of the border at which the next window will be
571 * opened if we are rendering a single window within a split container
572 * (which is undistinguishable from a single window outside a split
573 * container otherwise. */
574 Rect br = con_border_style_rect(con);
575 if (TAILQ_NEXT(con, nodes) == NULL &&
576 TAILQ_PREV(con, nodes_head, nodes) == NULL &&
577 con->parent->type != CT_FLOATING_CON) {
578 if (p->parent_layout == L_SPLITH) {
579 draw_util_rectangle(&(con->frame_buffer), p->color->indicator,
580 r->width + (br.width + br.x), br.y, -(br.width + br.x), r->height + br.height);
581 } else if (p->parent_layout == L_SPLITV) {
582 draw_util_rectangle(&(con->frame_buffer), p->color->indicator,
583 br.x, r->height + (br.height + br.y), r->width + br.width, -(br.height + br.y));
588 /* if this is a borderless/1pixel window, we don’t need to render the
590 if (p->border_style != BS_NORMAL)
593 /* If the parent hasn't been set up yet, skip the decoration rendering
595 if (parent->frame_buffer.id == XCB_NONE)
598 /* For the first child, we clear the parent pixmap to ensure there's no
599 * garbage left on there. This is important to avoid tearing when using
601 if (con == TAILQ_FIRST(&(con->parent->nodes_head))) {
602 draw_util_clear_surface(&(con->parent->frame_buffer), COLOR_TRANSPARENT);
603 FREE(con->parent->deco_render_params);
606 /* 4: paint the bar */
607 draw_util_rectangle(&(parent->frame_buffer), p->color->background,
608 con->deco_rect.x, con->deco_rect.y, con->deco_rect.width, con->deco_rect.height);
610 /* 5: draw title border */
611 x_draw_title_border(con, p);
613 /* 6: draw the title */
614 int text_offset_y = (con->deco_rect.height - config.font.height) / 2;
616 const int title_padding = logical_px(2);
617 const int deco_width = (int)con->deco_rect.width;
619 if (config.show_marks && !TAILQ_EMPTY(&(con->marks_head))) {
620 char *formatted_mark = sstrdup("");
621 bool had_visible_mark = false;
624 TAILQ_FOREACH(mark, &(con->marks_head), marks) {
625 if (mark->name[0] == '_')
627 had_visible_mark = true;
630 sasprintf(&buf, "%s[%s]", formatted_mark, mark->name);
631 free(formatted_mark);
632 formatted_mark = buf;
635 if (had_visible_mark) {
636 i3String *mark = i3string_from_utf8(formatted_mark);
637 mark_width = predict_text_width(mark);
639 int mark_offset_x = (config.title_align == ALIGN_RIGHT)
641 : deco_width - mark_width - title_padding;
643 draw_util_text(mark, &(parent->frame_buffer),
644 p->color->text, p->color->background,
645 con->deco_rect.x + mark_offset_x,
646 con->deco_rect.y + text_offset_y, mark_width);
649 mark_width += title_padding;
652 FREE(formatted_mark);
655 i3String *title = NULL;
656 struct Window *win = con->window;
658 if (con->title_format == NULL) {
660 char *tree = con_get_tree_representation(con);
661 sasprintf(&_title, "i3: %s", tree);
664 title = i3string_from_utf8(_title);
667 title = con_parse_title_format(con);
670 title = con->title_format == NULL ? win->name : con_parse_title_format(con);
677 switch (config.title_align) {
679 /* (pad)[text ](pad)[mark + its pad) */
680 title_offset_x = title_padding;
683 /* (pad)[ text ](pad)[mark + its pad)
684 * To center the text inside its allocated space, the surface
685 * between the brackets, we use the formula
686 * (surface_width - predict_text_width) / 2
687 * where surface_width = deco_width - 2 * pad - mark_width
688 * so, offset = pad + (surface_width - predict_text_width) / 2 =
689 * = … = (deco_width - mark_width - predict_text_width) / 2 */
690 title_offset_x = max(title_padding, (deco_width - mark_width - predict_text_width(title)) / 2);
693 /* [mark + its pad](pad)[ text](pad) */
694 title_offset_x = max(title_padding + mark_width, deco_width - title_padding - predict_text_width(title));
698 draw_util_text(title, &(parent->frame_buffer),
699 p->color->text, p->color->background,
700 con->deco_rect.x + title_offset_x,
701 con->deco_rect.y + text_offset_y,
702 deco_width - mark_width - 2 * title_padding);
704 if (win == NULL || con->title_format != NULL) {
705 I3STRING_FREE(title);
708 x_draw_decoration_after_title(con, p);
710 draw_util_copy_surface(&(con->frame_buffer), &(con->frame), 0, 0, 0, 0, con->rect.width, con->rect.height);
714 * Recursively calls x_draw_decoration. This cannot be done in x_push_node
715 * because x_push_node uses focus order to recurse (see the comment above)
716 * while drawing the decoration needs to happen in the actual order.
719 void x_deco_recurse(Con *con) {
721 bool leaf = TAILQ_EMPTY(&(con->nodes_head)) &&
722 TAILQ_EMPTY(&(con->floating_head));
723 con_state *state = state_for_frame(con->frame.id);
726 TAILQ_FOREACH(current, &(con->nodes_head), nodes)
727 x_deco_recurse(current);
729 TAILQ_FOREACH(current, &(con->floating_head), floating_windows)
730 x_deco_recurse(current);
733 draw_util_copy_surface(&(con->frame_buffer), &(con->frame), 0, 0, 0, 0, con->rect.width, con->rect.height);
737 if ((con->type != CT_ROOT && con->type != CT_OUTPUT) &&
738 (!leaf || con->mapped))
739 x_draw_decoration(con);
743 * Sets or removes the _NET_WM_STATE_HIDDEN property on con if necessary.
746 static void set_hidden_state(Con *con) {
747 if (con->window == NULL) {
751 con_state *state = state_for_frame(con->frame.id);
752 bool should_be_hidden = con_is_hidden(con);
753 if (should_be_hidden == state->is_hidden)
756 if (should_be_hidden) {
757 DLOG("setting _NET_WM_STATE_HIDDEN for con = %p\n", con);
758 xcb_add_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_HIDDEN);
760 DLOG("removing _NET_WM_STATE_HIDDEN for con = %p\n", con);
761 xcb_remove_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_HIDDEN);
764 state->is_hidden = should_be_hidden;
768 * Set the container frame shape as the union of the window shape and the
769 * shape of the frame borders.
771 static void x_shape_frame(Con *con, xcb_shape_sk_t shape_kind) {
774 xcb_shape_combine(conn, XCB_SHAPE_SO_SET, shape_kind, shape_kind,
776 con->window_rect.x + con->border_width,
777 con->window_rect.y + con->border_width,
779 xcb_rectangle_t rectangles[4];
780 size_t rectangles_count = x_get_border_rectangles(con, rectangles);
781 if (rectangles_count) {
782 xcb_shape_rectangles(conn, XCB_SHAPE_SO_UNION, shape_kind,
783 XCB_CLIP_ORDERING_UNSORTED, con->frame.id,
784 0, 0, rectangles_count, rectangles);
789 * Reset the container frame shape.
791 static void x_unshape_frame(Con *con, xcb_shape_sk_t shape_kind) {
794 xcb_shape_mask(conn, XCB_SHAPE_SO_SET, shape_kind, con->frame.id, 0, 0, XCB_PIXMAP_NONE);
798 * Shape or unshape container frame based on the con state.
800 static void set_shape_state(Con *con, bool need_reshape) {
801 if (!shape_supported || con->window == NULL) {
805 struct con_state *state;
806 if ((state = state_for_frame(con->frame.id)) == NULL) {
807 ELOG("window state for con %p not found\n", con);
811 if (need_reshape && con_is_floating(con)) {
812 /* We need to reshape the window frame only if it already has shape. */
813 if (con->window->shaped) {
814 x_shape_frame(con, XCB_SHAPE_SK_BOUNDING);
816 if (con->window->input_shaped) {
817 x_shape_frame(con, XCB_SHAPE_SK_INPUT);
821 if (state->was_floating && !con_is_floating(con)) {
822 /* Remove the shape when container is no longer floating. */
823 if (con->window->shaped) {
824 x_unshape_frame(con, XCB_SHAPE_SK_BOUNDING);
826 if (con->window->input_shaped) {
827 x_unshape_frame(con, XCB_SHAPE_SK_INPUT);
833 * This function pushes the properties of each node of the layout tree to
834 * X11 if they have changed (like the map state, position of the window, …).
835 * It recursively traverses all children of the given node.
838 void x_push_node(Con *con) {
841 Rect rect = con->rect;
843 //DLOG("Pushing changes for node %p / %s\n", con, con->name);
844 state = state_for_frame(con->frame.id);
846 if (state->name != NULL) {
847 DLOG("pushing name %s for con %p\n", state->name, con);
849 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->frame.id,
850 XCB_ATOM_WM_NAME, XCB_ATOM_STRING, 8, strlen(state->name), state->name);
854 if (con->window == NULL) {
855 /* Calculate the height of all window decorations which will be drawn on to
857 uint32_t max_y = 0, max_height = 0;
858 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
859 Rect *dr = &(current->deco_rect);
860 if (dr->y >= max_y && dr->height >= max_height) {
862 max_height = dr->height;
865 rect.height = max_y + max_height;
866 if (rect.height == 0)
870 bool need_reshape = false;
872 /* reparent the child window (when the window was moved due to a sticky
874 if (state->need_reparent && con->window != NULL) {
875 DLOG("Reparenting child window\n");
877 /* Temporarily set the event masks to XCB_NONE so that we won’t get
878 * UnmapNotify events (otherwise the handler would close the container).
879 * These events are generated automatically when reparenting. */
880 uint32_t values[] = {XCB_NONE};
881 xcb_change_window_attributes(conn, state->old_frame, XCB_CW_EVENT_MASK, values);
882 xcb_change_window_attributes(conn, con->window->id, XCB_CW_EVENT_MASK, values);
884 xcb_reparent_window(conn, con->window->id, con->frame.id, 0, 0);
886 values[0] = FRAME_EVENT_MASK;
887 xcb_change_window_attributes(conn, state->old_frame, XCB_CW_EVENT_MASK, values);
888 values[0] = CHILD_EVENT_MASK;
889 xcb_change_window_attributes(conn, con->window->id, XCB_CW_EVENT_MASK, values);
891 state->old_frame = XCB_NONE;
892 state->need_reparent = false;
895 DLOG("ignore_unmap for reparenting of con %p (win 0x%08x) is now %d\n",
896 con, con->window->id, con->ignore_unmap);
901 /* We need to update shape when window frame dimensions is updated. */
902 need_reshape |= state->rect.width != rect.width ||
903 state->rect.height != rect.height ||
904 state->window_rect.width != con->window_rect.width ||
905 state->window_rect.height != con->window_rect.height;
907 /* We need to set shape when container becomes floating. */
908 need_reshape |= con_is_floating(con) && !state->was_floating;
910 /* The pixmap of a borderless leaf container will not be used except
911 * for the titlebar in a stack or tabs (issue #1013). */
912 bool is_pixmap_needed = (con->border_style != BS_NONE ||
914 con->parent->layout == L_STACKED ||
915 con->parent->layout == L_TABBED);
917 /* The root con and output cons will never require a pixmap. In particular for the
918 * __i3 output, this will likely not work anyway because it might be ridiculously
919 * large, causing an XCB_ALLOC error. */
920 if (con->type == CT_ROOT || con->type == CT_OUTPUT)
921 is_pixmap_needed = false;
923 bool fake_notify = false;
924 /* Set new position if rect changed (and if height > 0) or if the pixmap
925 * needs to be recreated */
926 if ((is_pixmap_needed && con->frame_buffer.id == XCB_NONE) || (memcmp(&(state->rect), &rect, sizeof(Rect)) != 0 &&
928 /* We first create the new pixmap, then render to it, set it as the
929 * background and only afterwards change the window size. This reduces
932 bool has_rect_changed = (state->rect.x != rect.x || state->rect.y != rect.y ||
933 state->rect.width != rect.width || state->rect.height != rect.height);
935 /* Check if the container has an unneeded pixmap left over from
936 * previously having a border or titlebar. */
937 if (!is_pixmap_needed && con->frame_buffer.id != XCB_NONE) {
938 draw_util_surface_free(conn, &(con->frame_buffer));
939 xcb_free_pixmap(conn, con->frame_buffer.id);
940 con->frame_buffer.id = XCB_NONE;
943 if (is_pixmap_needed && (has_rect_changed || con->frame_buffer.id == XCB_NONE)) {
944 if (con->frame_buffer.id == XCB_NONE) {
945 con->frame_buffer.id = xcb_generate_id(conn);
947 draw_util_surface_free(conn, &(con->frame_buffer));
948 xcb_free_pixmap(conn, con->frame_buffer.id);
951 uint16_t win_depth = root_depth;
953 win_depth = con->window->depth;
955 /* Ensure we have valid dimensions for our surface. */
956 // TODO This is probably a bug in the condition above as we should never enter this path
957 // for height == 0. Also, we should probably handle width == 0 the same way.
958 int width = MAX((int32_t)rect.width, 1);
959 int height = MAX((int32_t)rect.height, 1);
961 xcb_create_pixmap(conn, win_depth, con->frame_buffer.id, con->frame.id, width, height);
962 draw_util_surface_init(conn, &(con->frame_buffer), con->frame_buffer.id,
963 get_visualtype_by_id(get_visualid_by_depth(win_depth)), width, height);
965 /* For the graphics context, we disable GraphicsExposure events.
966 * Those will be sent when a CopyArea request cannot be fulfilled
967 * properly due to parts of the source being unmapped or otherwise
968 * unavailable. Since we always copy from pixmaps to windows, this
969 * is not a concern for us. */
970 xcb_change_gc(conn, con->frame_buffer.gc, XCB_GC_GRAPHICS_EXPOSURES, (uint32_t[]){0});
972 draw_util_surface_set_size(&(con->frame), width, height);
973 con->pixmap_recreated = true;
975 /* Don’t render the decoration for windows inside a stack which are
976 * not visible right now */
977 // TODO Should this work the same way for L_TABBED?
979 con->parent->layout != L_STACKED ||
980 TAILQ_FIRST(&(con->parent->focus_head)) == con)
981 /* Render the decoration now to make the correct decoration visible
982 * from the very first moment. Later calls will be cached, so this
983 * doesn’t hurt performance. */
987 DLOG("setting rect (%d, %d, %d, %d)\n", rect.x, rect.y, rect.width, rect.height);
988 /* flush to ensure that the following commands are sent in a single
989 * buffer and will be processed directly afterwards (the contents of a
990 * window get lost when resizing it, therefore we want to provide it as
991 * fast as possible) */
993 xcb_set_window_rect(conn, con->frame.id, rect);
994 if (con->frame_buffer.id != XCB_NONE) {
995 draw_util_copy_surface(&(con->frame_buffer), &(con->frame), 0, 0, 0, 0, con->rect.width, con->rect.height);
999 memcpy(&(state->rect), &rect, sizeof(Rect));
1003 /* dito, but for child windows */
1004 if (con->window != NULL &&
1005 memcmp(&(state->window_rect), &(con->window_rect), sizeof(Rect)) != 0) {
1006 DLOG("setting window rect (%d, %d, %d, %d)\n",
1007 con->window_rect.x, con->window_rect.y, con->window_rect.width, con->window_rect.height);
1008 xcb_set_window_rect(conn, con->window->id, con->window_rect);
1009 memcpy(&(state->window_rect), &(con->window_rect), sizeof(Rect));
1013 set_shape_state(con, need_reshape);
1015 /* Map if map state changed, also ensure that the child window
1016 * is changed if we are mapped and there is a new, unmapped child window.
1017 * Unmaps are handled in x_push_node_unmaps(). */
1018 if ((state->mapped != con->mapped || (con->window != NULL && !state->child_mapped)) &&
1020 xcb_void_cookie_t cookie;
1022 if (con->window != NULL) {
1023 /* Set WM_STATE_NORMAL because GTK applications don’t want to
1024 * drag & drop if we don’t. Also, xprop(1) needs it. */
1025 long data[] = {XCB_ICCCM_WM_STATE_NORMAL, XCB_NONE};
1026 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id,
1027 A_WM_STATE, A_WM_STATE, 32, 2, data);
1031 if (!state->child_mapped && con->window != NULL) {
1032 cookie = xcb_map_window(conn, con->window->id);
1034 /* We are interested in EnterNotifys as soon as the window is
1036 values[0] = CHILD_EVENT_MASK;
1037 xcb_change_window_attributes(conn, con->window->id, XCB_CW_EVENT_MASK, values);
1038 DLOG("mapping child window (serial %d)\n", cookie.sequence);
1039 state->child_mapped = true;
1042 cookie = xcb_map_window(conn, con->frame.id);
1044 values[0] = FRAME_EVENT_MASK;
1045 xcb_change_window_attributes(conn, con->frame.id, XCB_CW_EVENT_MASK, values);
1047 /* copy the pixmap contents to the frame window immediately after mapping */
1048 if (con->frame_buffer.id != XCB_NONE) {
1049 draw_util_copy_surface(&(con->frame_buffer), &(con->frame), 0, 0, 0, 0, con->rect.width, con->rect.height);
1053 DLOG("mapping container %08x (serial %d)\n", con->frame.id, cookie.sequence);
1054 state->mapped = con->mapped;
1057 state->unmap_now = (state->mapped != con->mapped) && !con->mapped;
1058 state->was_floating = con_is_floating(con);
1061 DLOG("Sending fake configure notify\n");
1062 fake_absolute_configure_notify(con);
1065 set_hidden_state(con);
1067 /* Handle all children and floating windows of this node. We recurse
1068 * in focus order to display the focused client in a stack first when
1069 * switching workspaces (reduces flickering). */
1070 TAILQ_FOREACH(current, &(con->focus_head), focused) {
1071 x_push_node(current);
1076 * Same idea as in x_push_node(), but this function only unmaps windows. It is
1077 * necessary to split this up to handle new fullscreen clients properly: The
1078 * new window needs to be mapped and focus needs to be set *before* the
1079 * underlying windows are unmapped. Otherwise, focus will revert to the
1080 * PointerRoot and will then be set to the new window, generating unnecessary
1081 * FocusIn/FocusOut events.
1084 static void x_push_node_unmaps(Con *con) {
1088 //DLOG("Pushing changes (with unmaps) for node %p / %s\n", con, con->name);
1089 state = state_for_frame(con->frame.id);
1091 /* map/unmap if map state changed, also ensure that the child window
1092 * is changed if we are mapped *and* in initial state (meaning the
1093 * container was empty before, but now got a child) */
1094 if (state->unmap_now) {
1095 xcb_void_cookie_t cookie;
1096 if (con->window != NULL) {
1097 /* Set WM_STATE_WITHDRAWN, it seems like Java apps need it */
1098 long data[] = {XCB_ICCCM_WM_STATE_WITHDRAWN, XCB_NONE};
1099 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id,
1100 A_WM_STATE, A_WM_STATE, 32, 2, data);
1103 cookie = xcb_unmap_window(conn, con->frame.id);
1104 DLOG("unmapping container %p / %s (serial %d)\n", con, con->name, cookie.sequence);
1105 /* we need to increase ignore_unmap for this container (if it
1106 * contains a window) and for every window "under" this one which
1107 * contains a window */
1108 if (con->window != NULL) {
1109 con->ignore_unmap++;
1110 DLOG("ignore_unmap for con %p (frame 0x%08x) now %d\n", con, con->frame.id, con->ignore_unmap);
1112 state->mapped = con->mapped;
1115 /* handle all children and floating windows of this node */
1116 TAILQ_FOREACH(current, &(con->nodes_head), nodes)
1117 x_push_node_unmaps(current);
1119 TAILQ_FOREACH(current, &(con->floating_head), floating_windows)
1120 x_push_node_unmaps(current);
1124 * Returns true if the given container is currently attached to its parent.
1126 * TODO: Remove once #1185 has been fixed
1128 static bool is_con_attached(Con *con) {
1129 if (con->parent == NULL)
1133 TAILQ_FOREACH(current, &(con->parent->nodes_head), nodes) {
1142 * Pushes all changes (state of each node, see x_push_node() and the window
1145 * NOTE: We need to push the stack first so that the windows have the correct
1146 * stacking order. This is relevant for workspace switching where we map the
1147 * windows because mapping may generate EnterNotify events. When they are
1148 * generated in the wrong order, this will cause focus problems when switching
1152 void x_push_changes(Con *con) {
1154 xcb_query_pointer_cookie_t pointercookie;
1156 /* If we need to warp later, we request the pointer position as soon as possible */
1158 pointercookie = xcb_query_pointer(conn, root);
1161 DLOG("-- PUSHING WINDOW STACK --\n");
1162 //DLOG("Disabling EnterNotify\n");
1163 /* We need to keep SubstructureRedirect around, otherwise clients can send
1164 * ConfigureWindow requests and get them applied directly instead of having
1165 * them become ConfigureRequests that i3 handles. */
1166 uint32_t values[1] = {XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT};
1167 CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) {
1169 xcb_change_window_attributes(conn, state->id, XCB_CW_EVENT_MASK, values);
1171 //DLOG("Done, EnterNotify disabled\n");
1172 bool order_changed = false;
1173 bool stacking_changed = false;
1175 /* count first, necessary to (re)allocate memory for the bottom-to-top
1176 * stack afterwards */
1178 CIRCLEQ_FOREACH_REVERSE(state, &state_head, state)
1179 if (con_has_managed_window(state->con))
1182 /* The bottom-to-top window stack of all windows which are managed by i3.
1183 * Used for x_get_window_stack(). */
1184 static xcb_window_t *client_list_windows = NULL;
1185 static int client_list_count = 0;
1187 if (cnt != client_list_count) {
1188 client_list_windows = srealloc(client_list_windows, sizeof(xcb_window_t) * cnt);
1189 client_list_count = cnt;
1192 xcb_window_t *walk = client_list_windows;
1194 /* X11 correctly represents the stack if we push it from bottom to top */
1195 CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) {
1196 if (con_has_managed_window(state->con))
1197 memcpy(walk++, &(state->con->window->id), sizeof(xcb_window_t));
1199 //DLOG("stack: 0x%08x\n", state->id);
1200 con_state *prev = CIRCLEQ_PREV(state, state);
1201 con_state *old_prev = CIRCLEQ_PREV(state, old_state);
1202 if (prev != old_prev)
1203 order_changed = true;
1204 if ((state->initial || order_changed) && prev != CIRCLEQ_END(&state_head)) {
1205 stacking_changed = true;
1206 //DLOG("Stacking 0x%08x above 0x%08x\n", prev->id, state->id);
1208 mask |= XCB_CONFIG_WINDOW_SIBLING;
1209 mask |= XCB_CONFIG_WINDOW_STACK_MODE;
1210 uint32_t values[] = {state->id, XCB_STACK_MODE_ABOVE};
1212 xcb_configure_window(conn, prev->id, mask, values);
1214 state->initial = false;
1217 /* If we re-stacked something (or a new window appeared), we need to update
1218 * the _NET_CLIENT_LIST and _NET_CLIENT_LIST_STACKING hints */
1219 if (stacking_changed) {
1220 DLOG("Client list changed (%i clients)\n", cnt);
1221 ewmh_update_client_list_stacking(client_list_windows, client_list_count);
1223 walk = client_list_windows;
1225 /* reorder by initial mapping */
1226 TAILQ_FOREACH(state, &initial_mapping_head, initial_mapping_order) {
1227 if (con_has_managed_window(state->con))
1228 *walk++ = state->con->window->id;
1231 ewmh_update_client_list(client_list_windows, client_list_count);
1234 DLOG("PUSHING CHANGES\n");
1238 xcb_query_pointer_reply_t *pointerreply = xcb_query_pointer_reply(conn, pointercookie, NULL);
1239 if (!pointerreply) {
1240 ELOG("Could not query pointer position, not warping pointer\n");
1242 int mid_x = warp_to->x + (warp_to->width / 2);
1243 int mid_y = warp_to->y + (warp_to->height / 2);
1245 Output *current = get_output_containing(pointerreply->root_x, pointerreply->root_y);
1246 Output *target = get_output_containing(mid_x, mid_y);
1247 if (current != target) {
1248 /* Ignore MotionNotify events generated by warping */
1249 xcb_change_window_attributes(conn, root, XCB_CW_EVENT_MASK, (uint32_t[]){XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT});
1250 xcb_warp_pointer(conn, XCB_NONE, root, 0, 0, 0, 0, mid_x, mid_y);
1251 xcb_change_window_attributes(conn, root, XCB_CW_EVENT_MASK, (uint32_t[]){ROOT_EVENT_MASK});
1259 //DLOG("Re-enabling EnterNotify\n");
1260 values[0] = FRAME_EVENT_MASK;
1261 CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) {
1263 xcb_change_window_attributes(conn, state->id, XCB_CW_EVENT_MASK, values);
1265 //DLOG("Done, EnterNotify re-enabled\n");
1267 x_deco_recurse(con);
1269 xcb_window_t to_focus = focused->frame.id;
1270 if (focused->window != NULL)
1271 to_focus = focused->window->id;
1273 if (focused_id != to_focus) {
1274 if (!focused->mapped) {
1275 DLOG("Not updating focus (to %p / %s), focused window is not mapped.\n", focused, focused->name);
1276 /* Invalidate focused_id to correctly focus new windows with the same ID */
1277 focused_id = XCB_NONE;
1279 if (focused->window != NULL &&
1280 focused->window->needs_take_focus &&
1281 focused->window->doesnt_accept_focus) {
1282 DLOG("Updating focus by sending WM_TAKE_FOCUS to window 0x%08x (focused: %p / %s)\n",
1283 to_focus, focused, focused->name);
1284 send_take_focus(to_focus, last_timestamp);
1286 change_ewmh_focus((con_has_managed_window(focused) ? focused->window->id : XCB_WINDOW_NONE), last_focused);
1288 if (to_focus != last_focused && is_con_attached(focused))
1289 ipc_send_window_event("focus", focused);
1291 DLOG("Updating focus (focused: %p / %s) to X11 window 0x%08x\n", focused, focused->name, to_focus);
1292 /* We remove XCB_EVENT_MASK_FOCUS_CHANGE from the event mask to get
1293 * no focus change events for our own focus changes. We only want
1294 * these generated by the clients. */
1295 if (focused->window != NULL) {
1296 values[0] = CHILD_EVENT_MASK & ~(XCB_EVENT_MASK_FOCUS_CHANGE);
1297 xcb_change_window_attributes(conn, focused->window->id, XCB_CW_EVENT_MASK, values);
1299 xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, to_focus, last_timestamp);
1300 if (focused->window != NULL) {
1301 values[0] = CHILD_EVENT_MASK;
1302 xcb_change_window_attributes(conn, focused->window->id, XCB_CW_EVENT_MASK, values);
1305 change_ewmh_focus((con_has_managed_window(focused) ? focused->window->id : XCB_WINDOW_NONE), last_focused);
1307 if (to_focus != XCB_NONE && to_focus != last_focused && focused->window != NULL && is_con_attached(focused))
1308 ipc_send_window_event("focus", focused);
1311 focused_id = last_focused = to_focus;
1315 if (focused_id == XCB_NONE) {
1316 /* If we still have no window to focus, we focus the EWMH window instead. We use this rather than the
1317 * root window in order to avoid an X11 fallback mechanism causing a ghosting effect (see #1378). */
1318 DLOG("Still no window focused, better set focus to the EWMH support window (%d)\n", ewmh_window);
1319 xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, ewmh_window, last_timestamp);
1320 change_ewmh_focus(XCB_WINDOW_NONE, last_focused);
1322 focused_id = ewmh_window;
1326 DLOG("ENDING CHANGES\n");
1328 /* Disable EnterWindow events for windows which will be unmapped in
1329 * x_push_node_unmaps() now. Unmapping windows happens when switching
1330 * workspaces. We want to avoid getting EnterNotifies during that phase
1331 * because they would screw up our focus. One of these cases is having a
1332 * stack with two windows. If the first window is focused and gets
1333 * unmapped, the second one appears under the cursor and therefore gets an
1334 * EnterNotify event. */
1335 values[0] = FRAME_EVENT_MASK & ~XCB_EVENT_MASK_ENTER_WINDOW;
1336 CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) {
1337 if (!state->unmap_now)
1339 xcb_change_window_attributes(conn, state->id, XCB_CW_EVENT_MASK, values);
1342 /* Push all pending unmaps */
1343 x_push_node_unmaps(con);
1345 /* save the current stack as old stack */
1346 CIRCLEQ_FOREACH(state, &state_head, state) {
1347 CIRCLEQ_REMOVE(&old_state_head, state, old_state);
1348 CIRCLEQ_INSERT_TAIL(&old_state_head, state, old_state);
1350 //CIRCLEQ_FOREACH(state, &old_state_head, old_state) {
1351 // DLOG("old stack: 0x%08x\n", state->id);
1358 * Raises the specified container in the internal stack of X windows. The
1359 * next call to x_push_changes() will make the change visible in X11.
1362 void x_raise_con(Con *con) {
1364 state = state_for_frame(con->frame.id);
1365 //DLOG("raising in new stack: %p / %s / %s / xid %08x\n", con, con->name, con->window ? con->window->name_json : "", state->id);
1367 CIRCLEQ_REMOVE(&state_head, state, state);
1368 CIRCLEQ_INSERT_HEAD(&state_head, state, state);
1372 * Sets the WM_NAME property (so, no UTF8, but used only for debugging anyways)
1373 * of the given name. Used for properly tagging the windows for easily spotting
1374 * i3 windows in xwininfo -root -all.
1377 void x_set_name(Con *con, const char *name) {
1378 struct con_state *state;
1380 if ((state = state_for_frame(con->frame.id)) == NULL) {
1381 ELOG("window state not found\n");
1386 state->name = sstrdup(name);
1390 * Set up the I3_SHMLOG_PATH atom.
1393 void update_shmlog_atom(void) {
1394 if (*shmlogname == '\0') {
1395 xcb_delete_property(conn, root, A_I3_SHMLOG_PATH);
1397 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root,
1398 A_I3_SHMLOG_PATH, A_UTF8_STRING, 8,
1399 strlen(shmlogname), shmlogname);
1404 * Sets up i3 specific atoms (I3_SOCKET_PATH and I3_CONFIG_PATH)
1407 void x_set_i3_atoms(void) {
1408 pid_t pid = getpid();
1409 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, A_I3_SOCKET_PATH, A_UTF8_STRING, 8,
1410 (current_socketpath == NULL ? 0 : strlen(current_socketpath)),
1411 current_socketpath);
1412 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, A_I3_PID, XCB_ATOM_CARDINAL, 32, 1, &pid);
1413 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, A_I3_CONFIG_PATH, A_UTF8_STRING, 8,
1414 strlen(current_configpath), current_configpath);
1415 update_shmlog_atom();
1419 * Set warp_to coordinates. This will trigger on the next call to
1423 void x_set_warp_to(Rect *rect) {
1424 if (config.mouse_warping != POINTER_WARPING_NONE)
1429 * Applies the given mask to the event mask of every i3 window decoration X11
1430 * window. This is useful to disable EnterNotify while resizing so that focus
1434 void x_mask_event_mask(uint32_t mask) {
1435 uint32_t values[] = {FRAME_EVENT_MASK & mask};
1438 CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) {
1440 xcb_change_window_attributes(conn, state->id, XCB_CW_EVENT_MASK, values);
1445 * Enables or disables nonrectangular shape of the container frame.
1447 void x_set_shape(Con *con, xcb_shape_sk_t kind, bool enable) {
1448 struct con_state *state;
1449 if ((state = state_for_frame(con->frame.id)) == NULL) {
1450 ELOG("window state for con %p not found\n", con);
1455 case XCB_SHAPE_SK_BOUNDING:
1456 con->window->shaped = enable;
1458 case XCB_SHAPE_SK_INPUT:
1459 con->window->input_shaped = enable;
1462 ELOG("Received unknown shape event kind for con %p. This is a bug.\n",
1467 if (con_is_floating(con)) {
1469 x_shape_frame(con, kind);
1471 x_unshape_frame(con, kind);