2 * vim:ts=4:sw=4:expandtab
7 /* Stores the X11 window ID of the currently focused window */
8 xcb_window_t focused_id = XCB_NONE;
11 * Describes the X11 state we may modify (map state, position, window stack).
12 * There is one entry per container. The state represents the current situation
13 * as X11 sees it (with the exception of the order in the state_head CIRCLEQ,
14 * which represents the order that will be pushed to X11, while old_state_head
15 * represents the current order). It will be updated in x_push_changes().
18 typedef struct con_state {
23 /* For reparenting, we have a flag (need_reparent) and the X ID of the old
24 * frame this window was in. The latter is necessary because we need to
25 * ignore UnmapNotify events (by changing the window event mask). */
27 xcb_window_t old_frame;
36 CIRCLEQ_ENTRY(con_state) state;
37 CIRCLEQ_ENTRY(con_state) old_state;
40 CIRCLEQ_HEAD(state_head, con_state) state_head =
41 CIRCLEQ_HEAD_INITIALIZER(state_head);
43 CIRCLEQ_HEAD(old_state_head, con_state) old_state_head =
44 CIRCLEQ_HEAD_INITIALIZER(old_state_head);
47 * Returns the container state for the given frame. This function always
48 * returns a container state (otherwise, there is a bug in the code and the
49 * container state of a container for which x_con_init() was not called was
53 static con_state *state_for_frame(xcb_window_t window) {
55 CIRCLEQ_FOREACH(state, &state_head, state)
56 if (state->id == window)
59 /* TODO: better error handling? */
60 ELOG("No state found\n");
66 * Initializes the X11 part for the given container. Called exactly once for
67 * every container from con_new().
70 void x_con_init(Con *con) {
71 /* TODO: maybe create the window when rendering first? we could then even
72 * get the initial geometry right */
77 /* our own frames should not be managed */
78 mask |= XCB_CW_OVERRIDE_REDIRECT;
81 /* We want to know when… */
82 mask |= XCB_CW_EVENT_MASK;
83 values[1] = FRAME_EVENT_MASK;
85 Rect dims = { -15, -15, 10, 10 };
86 con->frame = create_window(conn, dims, XCB_WINDOW_CLASS_INPUT_OUTPUT, XCURSOR_CURSOR_POINTER, false, mask, values);
88 struct con_state *state = scalloc(sizeof(struct con_state));
89 state->id = con->frame;
90 state->mapped = false;
91 state->initial = true;
92 CIRCLEQ_INSERT_HEAD(&state_head, state, state);
93 CIRCLEQ_INSERT_HEAD(&old_state_head, state, old_state);
94 DLOG("adding new state for window id 0x%08x\n", state->id);
98 * Re-initializes the associated X window state for this container. You have
99 * to call this when you assign a client to an empty container to ensure that
100 * its state gets updated correctly.
103 void x_reinit(Con *con) {
104 struct con_state *state;
106 if ((state = state_for_frame(con->frame)) == NULL) {
107 ELOG("window state not found\n");
111 DLOG("resetting state %p to initial\n", state);
112 state->initial = true;
113 state->child_mapped = false;
114 memset(&(state->window_rect), 0, sizeof(Rect));
118 * Reparents the child window of the given container (necessary for sticky
119 * containers). The reparenting happens in the next call of x_push_changes().
122 void x_reparent_child(Con *con, Con *old) {
123 struct con_state *state;
124 if ((state = state_for_frame(con->frame)) == NULL) {
125 ELOG("window state for con not found\n");
129 state->need_reparent = true;
130 state->old_frame = old->frame;
134 * Moves a child window from Container src to Container dest.
137 void x_move_win(Con *src, Con *dest) {
138 struct con_state *state_src, *state_dest;
140 if ((state_src = state_for_frame(src->frame)) == NULL) {
141 ELOG("window state for src not found\n");
145 if ((state_dest = state_for_frame(dest->frame)) == NULL) {
146 ELOG("window state for dest not found\n");
150 Rect zero = { 0, 0, 0, 0 };
151 if (memcmp(&(state_dest->window_rect), &(zero), sizeof(Rect)) == 0) {
152 memcpy(&(state_dest->window_rect), &(state_src->window_rect), sizeof(Rect));
153 DLOG("COPYING RECT\n");
158 * Kills the window decoration associated with the given container.
161 void x_con_kill(Con *con) {
164 xcb_destroy_window(conn, con->frame);
165 xcb_free_pixmap(conn, con->pixmap);
166 xcb_free_gc(conn, con->pm_gc);
167 state = state_for_frame(con->frame);
168 CIRCLEQ_REMOVE(&state_head, state, state);
169 CIRCLEQ_REMOVE(&old_state_head, state, old_state);
173 /* Invalidate focused_id to correctly focus new windows with the same ID */
174 focused_id = XCB_NONE;
178 * Returns true if the client supports the given protocol atom (like WM_DELETE_WINDOW)
181 bool window_supports_protocol(xcb_window_t window, xcb_atom_t atom) {
182 xcb_get_property_cookie_t cookie;
183 xcb_icccm_get_wm_protocols_reply_t protocols;
186 cookie = xcb_icccm_get_wm_protocols_unchecked(conn, window, A_WM_PROTOCOLS);
187 if (xcb_icccm_get_wm_protocols_reply(conn, cookie, &protocols, NULL) != 1)
190 /* Check if the client’s protocols have the requested atom set */
191 for (uint32_t i = 0; i < protocols.atoms_len; i++)
192 if (protocols.atoms[i] == atom)
195 xcb_icccm_get_wm_protocols_reply_wipe(&protocols);
201 * Kills the given X11 window using WM_DELETE_WINDOW (if supported).
204 void x_window_kill(xcb_window_t window, kill_window_t kill_window) {
205 /* if this window does not support WM_DELETE_WINDOW, we kill it the hard way */
206 if (!window_supports_protocol(window, A_WM_DELETE_WINDOW)) {
207 if (kill_window == KILL_WINDOW) {
208 LOG("Killing specific window 0x%08x\n", window);
209 xcb_destroy_window(conn, window);
211 LOG("Killing the X11 client which owns window 0x%08x\n", window);
212 xcb_kill_client(conn, window);
217 xcb_client_message_event_t ev;
219 memset(&ev, 0, sizeof(xcb_client_message_event_t));
221 ev.response_type = XCB_CLIENT_MESSAGE;
223 ev.type = A_WM_PROTOCOLS;
225 ev.data.data32[0] = A_WM_DELETE_WINDOW;
226 ev.data.data32[1] = XCB_CURRENT_TIME;
228 LOG("Sending WM_DELETE to the client\n");
229 xcb_send_event(conn, false, window, XCB_EVENT_MASK_NO_EVENT, (char*)&ev);
234 * Draws the decoration of the given container onto its parent.
237 void x_draw_decoration(Con *con) {
238 const Con *parent = con->parent;
239 /* This code needs to run for:
241 * • non-leaf containers which are in a stacked/tabbed container
243 * It does not need to run for:
244 * • floating containers (they don’t have a decoration)
246 if ((!con_is_leaf(con) &&
247 parent->layout != L_STACKED &&
248 parent->layout != L_TABBED) ||
249 con->type == CT_FLOATING_CON)
251 DLOG("decoration should be rendered for con %p\n", con);
253 /* Skip containers whose height is 0 (for example empty dockareas) */
254 if (con->rect.height == 0) {
255 DLOG("height == 0, not rendering\n");
259 /* 1: build deco_params and compare with cache */
260 struct deco_render_params *p = scalloc(sizeof(struct deco_render_params));
262 /* find out which colors to use */
264 p->color = &config.client.urgent;
265 else if (con == focused)
266 p->color = &config.client.focused;
267 else if (con == TAILQ_FIRST(&(parent->focus_head)))
268 p->color = &config.client.focused_inactive;
270 p->color = &config.client.unfocused;
272 p->border_style = con_border_style(con);
274 Rect *r = &(con->rect);
275 Rect *w = &(con->window_rect);
276 p->con_rect = (struct width_height){ r->width, r->height };
277 p->con_window_rect = (struct width_height){ w->width, w->height };
278 p->con_deco_rect = con->deco_rect;
279 p->background = config.client.background;
280 p->con_is_leaf = con_is_leaf(con);
281 p->font = config.font.id;
283 if (con->deco_render_params != NULL &&
284 (con->window == NULL || !con->window->name_x_changed) &&
285 !con->parent->pixmap_recreated &&
286 memcmp(p, con->deco_render_params, sizeof(struct deco_render_params)) == 0) {
287 DLOG("CACHE HIT, not re-rendering\n");
292 DLOG("CACHE MISS\n");
294 while ((next = TAILQ_NEXT(next, nodes))) {
295 DLOG("Also invalidating cache of %p\n", next);
296 FREE(next->deco_render_params);
299 FREE(con->deco_render_params);
300 con->deco_render_params = p;
302 if (con->window != NULL && con->window->name_x_changed)
303 con->window->name_x_changed = false;
305 con->parent->pixmap_recreated = false;
307 /* If the con is in fullscreen mode, the decoration height we work with is set to 0 */
308 Rect deco_rect = con->deco_rect;
309 if (con_get_fullscreen_con(con->parent) == con)
310 deco_rect.height = 0;
312 /* 2: draw the client.background, but only for the parts around the client_rect */
313 if (con->window != NULL) {
314 xcb_rectangle_t background[] = {
316 { 0, 0, r->width, w->y },
318 { 0, (w->y + w->height), r->width, r->height - (w->y + w->height) },
320 { 0, 0, w->x, r->height },
322 { w->x + w->width, 0, r->width - (w->x + w->width), r->height }
325 for (int i = 0; i < 4; i++)
326 DLOG("rect is (%d, %d) with %d x %d\n",
334 xcb_change_gc_single(conn, con->pm_gc, XCB_GC_FOREGROUND, config.client.background);
335 xcb_poly_fill_rectangle(conn, con->pixmap, con->pm_gc, sizeof(background) / sizeof(xcb_rectangle_t), background);
338 /* 3: draw a rectangle in border color around the client */
339 if (p->border_style != BS_NONE && p->con_is_leaf) {
340 Rect br = con_border_style_rect(con);
342 DLOG("con->rect spans %d x %d\n", con->rect.width, con->rect.height);
343 DLOG("border_rect spans (%d, %d) with %d x %d\n", br.x, br.y, br.width, br.height);
344 DLOG("window_rect spans (%d, %d) with %d x %d\n", con->window_rect.x, con->window_rect.y, con->window_rect.width, con->window_rect.height);
347 /* These rectangles represents the border around the child window
348 * (left, bottom and right part). We don’t just fill the whole
349 * rectangle because some childs are not freely resizable and we want
350 * their background color to "shine through". */
351 xcb_change_gc_single(conn, con->pm_gc, XCB_GC_FOREGROUND, p->color->background);
352 xcb_rectangle_t borders[] = {
353 { 0, 0, br.x, r->height },
354 { 0, r->height + br.height + br.y, r->width, r->height },
355 { r->width + br.width + br.x, 0, r->width, r->height }
357 xcb_poly_fill_rectangle(conn, con->pixmap, con->pm_gc, 3, borders);
358 /* 1pixel border needs an additional line at the top */
359 if (p->border_style == BS_1PIXEL) {
360 xcb_rectangle_t topline = { br.x, 0, con->rect.width + br.width + br.x, br.y };
361 xcb_poly_fill_rectangle(conn, con->pixmap, con->pm_gc, 1, &topline);
365 /* if this is a borderless/1pixel window, we don’t * need to render the
367 if (p->border_style != BS_NORMAL) {
368 DLOG("border style not BS_NORMAL, aborting rendering of decoration\n");
372 /* 4: paint the bar */
373 xcb_change_gc_single(conn, parent->pm_gc, XCB_GC_FOREGROUND, p->color->background);
374 xcb_rectangle_t drect = { con->deco_rect.x, con->deco_rect.y, con->deco_rect.width, con->deco_rect.height };
375 xcb_poly_fill_rectangle(conn, parent->pixmap, parent->pm_gc, 1, &drect);
377 /* 5: draw the two lines in border color */
378 xcb_draw_line(conn, parent->pixmap, parent->pm_gc, p->color->border,
379 con->deco_rect.x, /* x */
380 con->deco_rect.y, /* y */
381 con->deco_rect.x + con->deco_rect.width, /* to_x */
382 con->deco_rect.y); /* to_y */
383 xcb_draw_line(conn, parent->pixmap, parent->pm_gc, p->color->border,
384 con->deco_rect.x, /* x */
385 con->deco_rect.y + con->deco_rect.height - 1, /* y */
386 con->deco_rect.x + con->deco_rect.width, /* to_x */
387 con->deco_rect.y + con->deco_rect.height - 1); /* to_y */
389 /* 6: draw the title */
390 uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND | XCB_GC_FONT;
391 uint32_t values[] = { p->color->text, p->color->background, config.font.id };
392 xcb_change_gc(conn, parent->pm_gc, mask, values);
393 int text_offset_y = config.font.height + (con->deco_rect.height - config.font.height) / 2 - 1;
395 struct Window *win = con->window;
396 if (win == NULL || win->name_x == NULL) {
397 /* this is a non-leaf container, we need to make up a good description */
398 // TODO: use a good description instead of just "another container"
401 strlen("another container"),
404 con->deco_rect.x + 2,
405 con->deco_rect.y + text_offset_y,
412 int indent_level = 0,
414 Con *il_parent = con->parent;
415 if (il_parent->layout != L_STACKED) {
417 DLOG("il_parent = %p, layout = %d\n", il_parent, il_parent->layout);
418 if (il_parent->layout == L_STACKED)
420 if (il_parent->type == CT_WORKSPACE || il_parent->type == CT_DOCKAREA || il_parent->type == CT_OUTPUT)
422 il_parent = il_parent->parent;
426 DLOG("indent_level = %d, indent_mult = %d\n", indent_level, indent_mult);
427 int indent_px = (indent_level * 5) * indent_mult;
429 if (win->uses_net_wm_name)
435 con->deco_rect.x + 2 + indent_px,
436 con->deco_rect.y + text_offset_y,
437 (xcb_char2b_t*)win->name_x
445 con->deco_rect.x + 2 + indent_px,
446 con->deco_rect.y + text_offset_y,
451 xcb_clear_area(conn, false, con->frame, 0, 0, con->rect.width, con->rect.height);
452 xcb_clear_area(conn, false, parent->frame, 0, 0, parent->rect.width, parent->rect.height);
456 * Recursively calls x_draw_decoration. This cannot be done in x_push_node
457 * because x_push_node uses focus order to recurse (see the comment above)
458 * while drawing the decoration needs to happen in the actual order.
461 static void x_deco_recurse(Con *con) {
464 TAILQ_FOREACH(current, &(con->nodes_head), nodes)
465 x_deco_recurse(current);
467 TAILQ_FOREACH(current, &(con->floating_head), floating_windows)
468 x_deco_recurse(current);
470 if ((con->type != CT_ROOT && con->type != CT_OUTPUT) &&
472 x_draw_decoration(con);
476 * This function pushes the properties of each node of the layout tree to
477 * X11 if they have changed (like the map state, position of the window, …).
478 * It recursively traverses all children of the given node.
481 void x_push_node(Con *con) {
484 Rect rect = con->rect;
486 //DLOG("Pushing changes for node %p / %s\n", con, con->name);
487 state = state_for_frame(con->frame);
489 if (state->name != NULL) {
490 DLOG("pushing name %s for con %p\n", state->name, con);
492 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->frame,
493 A_WM_NAME, A_STRING, 8, strlen(state->name), state->name);
497 if (con->window == NULL) {
498 /* Calculate the height of all window decorations which will be drawn on to
500 uint32_t max_y = 0, max_height = 0;
501 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
502 Rect *dr = &(current->deco_rect);
503 if (dr->y >= max_y && dr->height >= max_height) {
505 max_height = dr->height;
508 rect.height = max_y + max_height;
509 if (rect.height == 0) {
510 DLOG("Unmapping container %p because it does not contain anything.\n", con);
515 /* reparent the child window (when the window was moved due to a sticky
517 if (state->need_reparent && con->window != NULL) {
518 DLOG("Reparenting child window\n");
520 /* Temporarily set the event masks to XCB_NONE so that we won’t get
521 * UnmapNotify events (otherwise the handler would close the container).
522 * These events are generated automatically when reparenting. */
523 uint32_t values[] = { XCB_NONE };
524 xcb_change_window_attributes(conn, state->old_frame, XCB_CW_EVENT_MASK, values);
525 xcb_change_window_attributes(conn, con->window->id, XCB_CW_EVENT_MASK, values);
527 xcb_reparent_window(conn, con->window->id, con->frame, 0, 0);
529 values[0] = FRAME_EVENT_MASK;
530 xcb_change_window_attributes(conn, state->old_frame, XCB_CW_EVENT_MASK, values);
531 values[0] = CHILD_EVENT_MASK;
532 xcb_change_window_attributes(conn, con->window->id, XCB_CW_EVENT_MASK, values);
534 state->old_frame = XCB_NONE;
535 state->need_reparent = false;
538 DLOG("ignore_unmap for reparenting of con %p (win 0x%08x) is now %d\n",
539 con, con->window->id, con->ignore_unmap);
542 bool fake_notify = false;
543 /* set new position if rect changed */
544 if (memcmp(&(state->rect), &rect, sizeof(Rect)) != 0) {
545 /* We first create the new pixmap, then render to it, set it as the
546 * background and only afterwards change the window size. This reduces
549 /* As the pixmap only depends on the size and not on the position, it
550 * is enough to check if width/height have changed. Also, we don’t
551 * create a pixmap at all when the window is actually not visible
553 if (rect.height > 0 &&
554 (state->rect.width != rect.width ||
555 state->rect.height != rect.height)) {
556 DLOG("CACHE: creating new pixmap for con %p (old: %d x %d, new: %d x %d)\n",
557 con, state->rect.width, state->rect.height,
558 rect.width, rect.height);
559 if (con->pixmap == 0) {
560 con->pixmap = xcb_generate_id(conn);
561 con->pm_gc = xcb_generate_id(conn);
563 xcb_free_pixmap(conn, con->pixmap);
564 xcb_free_gc(conn, con->pm_gc);
566 xcb_create_pixmap(conn, root_depth, con->pixmap, con->frame, rect.width, rect.height);
567 xcb_create_gc(conn, con->pm_gc, con->pixmap, 0, 0);
569 con->pixmap_recreated = true;
571 /* Render the decoration now to make the correct decoration visible
572 * from the very first moment. Later calls will be cached, so this
573 * doesn’t hurt performance. */
576 uint32_t values[] = { con->pixmap };
577 xcb_change_window_attributes(conn, con->frame, XCB_CW_BACK_PIXMAP, values);
580 DLOG("setting rect (%d, %d, %d, %d)\n", rect.x, rect.y, rect.width, rect.height);
581 xcb_set_window_rect(conn, con->frame, rect);
583 memcpy(&(state->rect), &rect, sizeof(Rect));
587 /* dito, but for child windows */
588 if (con->window != NULL &&
589 memcmp(&(state->window_rect), &(con->window_rect), sizeof(Rect)) != 0) {
590 DLOG("setting window rect (%d, %d, %d, %d)\n",
591 con->window_rect.x, con->window_rect.y, con->window_rect.width, con->window_rect.height);
592 xcb_set_window_rect(conn, con->window->id, con->window_rect);
593 memcpy(&(state->window_rect), &(con->window_rect), sizeof(Rect));
597 /* Map if map state changed, also ensure that the child window
598 * is changed if we are mapped *and* in initial state (meaning the
599 * container was empty before, but now got a child). Unmaps are handled in
600 * x_push_node_unmaps(). */
601 if ((state->mapped != con->mapped || (con->mapped && state->initial)) &&
603 xcb_void_cookie_t cookie;
605 if (con->window != NULL) {
606 /* Set WM_STATE_NORMAL because GTK applications don’t want to
607 * drag & drop if we don’t. Also, xprop(1) needs it. */
608 long data[] = { XCB_ICCCM_WM_STATE_NORMAL, XCB_NONE };
609 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id,
610 A_WM_STATE, A_WM_STATE, 32, 2, data);
613 if (!state->child_mapped && con->window != NULL) {
614 cookie = xcb_map_window(conn, con->window->id);
615 DLOG("mapping child window (serial %d)\n", cookie.sequence);
616 /* Ignore enter_notifies which are generated when mapping */
617 add_ignore_event(cookie.sequence, 0);
618 state->child_mapped = true;
621 cookie = xcb_map_window(conn, con->frame);
622 DLOG("mapping container (serial %d)\n", cookie.sequence);
623 /* Ignore enter_notifies which are generated when mapping */
624 add_ignore_event(cookie.sequence, 0);
625 state->mapped = con->mapped;
629 DLOG("Sending fake configure notify\n");
630 fake_absolute_configure_notify(con);
633 /* Handle all children and floating windows of this node. We recurse
634 * in focus order to display the focused client in a stack first when
635 * switching workspaces (reduces flickering). */
636 TAILQ_FOREACH(current, &(con->focus_head), focused)
637 x_push_node(current);
641 * Same idea as in x_push_node(), but this function only unmaps windows. It is
642 * necessary to split this up to handle new fullscreen clients properly: The
643 * new window needs to be mapped and focus needs to be set *before* the
644 * underlying windows are unmapped. Otherwise, focus will revert to the
645 * PointerRoot and will then be set to the new window, generating unnecessary
646 * FocusIn/FocusOut events.
649 static void x_push_node_unmaps(Con *con) {
653 //DLOG("Pushing changes (with unmaps) for node %p / %s\n", con, con->name);
654 state = state_for_frame(con->frame);
656 /* map/unmap if map state changed, also ensure that the child window
657 * is changed if we are mapped *and* in initial state (meaning the
658 * container was empty before, but now got a child) */
659 if ((state->mapped != con->mapped || (con->mapped && state->initial)) &&
661 xcb_void_cookie_t cookie;
662 if (con->window != NULL) {
663 /* Set WM_STATE_WITHDRAWN, it seems like Java apps need it */
664 long data[] = { XCB_ICCCM_WM_STATE_WITHDRAWN, XCB_NONE };
665 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id,
666 A_WM_STATE, A_WM_STATE, 32, 2, data);
669 cookie = xcb_unmap_window(conn, con->frame);
670 DLOG("unmapping container (serial %d)\n", cookie.sequence);
671 /* we need to increase ignore_unmap for this container (if it
672 * contains a window) and for every window "under" this one which
673 * contains a window */
674 if (con->window != NULL) {
676 DLOG("ignore_unmap for con %p (frame 0x%08x) now %d\n", con, con->frame, con->ignore_unmap);
678 /* Ignore enter_notifies which are generated when unmapping */
679 add_ignore_event(cookie.sequence, 0);
680 state->mapped = con->mapped;
683 /* handle all children and floating windows of this node */
684 TAILQ_FOREACH(current, &(con->nodes_head), nodes)
685 x_push_node_unmaps(current);
687 TAILQ_FOREACH(current, &(con->floating_head), floating_windows)
688 x_push_node_unmaps(current);
692 * Pushes all changes (state of each node, see x_push_node() and the window
695 * NOTE: We need to push the stack first so that the windows have the correct
696 * stacking order. This is relevant for workspace switching where we map the
697 * windows because mapping may generate EnterNotify events. When they are
698 * generated in the wrong order, this will cause focus problems when switching
702 void x_push_changes(Con *con) {
705 DLOG("-- PUSHING WINDOW STACK --\n");
706 //DLOG("Disabling EnterNotify\n");
707 uint32_t values[1] = { XCB_NONE };
708 CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) {
709 xcb_change_window_attributes(conn, state->id, XCB_CW_EVENT_MASK, values);
711 //DLOG("Done, EnterNotify disabled\n");
712 bool order_changed = false;
713 /* X11 correctly represents the stack if we push it from bottom to top */
714 CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) {
715 //DLOG("stack: 0x%08x\n", state->id);
716 con_state *prev = CIRCLEQ_PREV(state, state);
717 con_state *old_prev = CIRCLEQ_PREV(state, old_state);
718 if (prev != old_prev)
719 order_changed = true;
720 if ((state->initial || order_changed) && prev != CIRCLEQ_END(&state_head)) {
721 DLOG("Stacking 0x%08x above 0x%08x\n", prev->id, state->id);
723 mask |= XCB_CONFIG_WINDOW_SIBLING;
724 mask |= XCB_CONFIG_WINDOW_STACK_MODE;
725 uint32_t values[] = {state->id, XCB_STACK_MODE_ABOVE};
727 xcb_configure_window(conn, prev->id, mask, values);
729 state->initial = false;
731 //DLOG("Re-enabling EnterNotify\n");
732 values[0] = FRAME_EVENT_MASK;
733 CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) {
734 xcb_change_window_attributes(conn, state->id, XCB_CW_EVENT_MASK, values);
736 //DLOG("Done, EnterNotify re-enabled\n");
738 DLOG("\n\n PUSHING CHANGES\n\n");
742 xcb_window_t to_focus = focused->frame;
743 if (focused->window != NULL)
744 to_focus = focused->window->id;
746 DLOG("focused_id = 0x%08x, to_focus = 0x%08x\n", focused_id, to_focus);
747 if (focused_id != to_focus) {
748 if (!focused->mapped) {
749 DLOG("Not updating focus (to %p / %s), focused window is not mapped.\n", focused, focused->name);
750 /* Invalidate focused_id to correctly focus new windows with the same ID */
751 focused_id = XCB_NONE;
753 DLOG("Updating focus (focused: %p / %s)\n", focused, focused->name);
754 /* We remove XCB_EVENT_MASK_FOCUS_CHANGE from the event mask to get
755 * no focus change events for our own focus changes. We only want
756 * these generated by the clients. */
757 if (focused->window != NULL) {
758 values[0] = CHILD_EVENT_MASK & ~(XCB_EVENT_MASK_FOCUS_CHANGE);
759 xcb_change_window_attributes(conn, focused->window->id, XCB_CW_EVENT_MASK, values);
761 xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, to_focus, XCB_CURRENT_TIME);
762 if (focused->window != NULL) {
763 values[0] = CHILD_EVENT_MASK;
764 xcb_change_window_attributes(conn, focused->window->id, XCB_CW_EVENT_MASK, values);
767 if (focused->window != NULL &&
768 focused->window->needs_take_focus) {
769 send_take_focus(to_focus);
772 ewmh_update_active_window(to_focus);
773 focused_id = to_focus;
777 if (focused_id == XCB_NONE) {
778 DLOG("Still no window focused, better set focus to the root window\n");
779 xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, root, XCB_CURRENT_TIME);
784 DLOG("\n\n ENDING CHANGES\n\n");
786 x_push_node_unmaps(con);
788 /* save the current stack as old stack */
789 CIRCLEQ_FOREACH(state, &state_head, state) {
790 CIRCLEQ_REMOVE(&old_state_head, state, old_state);
791 CIRCLEQ_INSERT_TAIL(&old_state_head, state, old_state);
793 //CIRCLEQ_FOREACH(state, &old_state_head, old_state) {
794 // DLOG("old stack: 0x%08x\n", state->id);
801 * Raises the specified container in the internal stack of X windows. The
802 * next call to x_push_changes() will make the change visible in X11.
805 void x_raise_con(Con *con) {
807 state = state_for_frame(con->frame);
808 //DLOG("raising in new stack: %p / %s / %s / xid %08x\n", con, con->name, con->window ? con->window->name_json : "", state->id);
810 CIRCLEQ_REMOVE(&state_head, state, state);
811 CIRCLEQ_INSERT_HEAD(&state_head, state, state);
815 * Sets the WM_NAME property (so, no UTF8, but used only for debugging anyways)
816 * of the given name. Used for properly tagging the windows for easily spotting
817 * i3 windows in xwininfo -root -all.
820 void x_set_name(Con *con, const char *name) {
821 struct con_state *state;
823 if ((state = state_for_frame(con->frame)) == NULL) {
824 ELOG("window state not found\n");
829 state->name = sstrdup(name);
833 * Sets up i3 specific atoms (I3_SOCKET_PATH and I3_CONFIG_PATH)
836 void x_set_i3_atoms() {
837 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, A_I3_SOCKET_PATH, A_UTF8_STRING, 8,
838 (current_socketpath == NULL ? 0 : strlen(current_socketpath)),
840 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, A_I3_CONFIG_PATH, A_UTF8_STRING, 8,
841 strlen(current_configpath), current_configpath);