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 {
24 /* For reparenting, we have a flag (need_reparent) and the X ID of the old
25 * frame this window was in. The latter is necessary because we need to
26 * ignore UnmapNotify events (by changing the window event mask). */
28 xcb_window_t old_frame;
37 CIRCLEQ_ENTRY(con_state) state;
38 CIRCLEQ_ENTRY(con_state) old_state;
41 CIRCLEQ_HEAD(state_head, con_state) state_head =
42 CIRCLEQ_HEAD_INITIALIZER(state_head);
44 CIRCLEQ_HEAD(old_state_head, con_state) old_state_head =
45 CIRCLEQ_HEAD_INITIALIZER(old_state_head);
48 * Returns the container state for the given frame. This function always
49 * returns a container state (otherwise, there is a bug in the code and the
50 * container state of a container for which x_con_init() was not called was
54 static con_state *state_for_frame(xcb_window_t window) {
56 CIRCLEQ_FOREACH(state, &state_head, state)
57 if (state->id == window)
60 /* TODO: better error handling? */
61 ELOG("No state found\n");
67 * Initializes the X11 part for the given container. Called exactly once for
68 * every container from con_new().
71 void x_con_init(Con *con) {
72 /* TODO: maybe create the window when rendering first? we could then even
73 * get the initial geometry right */
78 /* our own frames should not be managed */
79 mask |= XCB_CW_OVERRIDE_REDIRECT;
82 /* see include/xcb.h for the FRAME_EVENT_MASK */
83 mask |= XCB_CW_EVENT_MASK;
84 values[1] = FRAME_EVENT_MASK & ~XCB_EVENT_MASK_ENTER_WINDOW;
86 Rect dims = { -15, -15, 10, 10 };
87 con->frame = create_window(conn, dims, XCB_WINDOW_CLASS_INPUT_OUTPUT, XCURSOR_CURSOR_POINTER, false, mask, values);
89 struct con_state *state = scalloc(sizeof(struct con_state));
90 state->id = con->frame;
91 state->mapped = false;
92 state->initial = true;
93 CIRCLEQ_INSERT_HEAD(&state_head, state, state);
94 CIRCLEQ_INSERT_HEAD(&old_state_head, state, old_state);
95 DLOG("adding new state for window id 0x%08x\n", state->id);
99 * Re-initializes the associated X window state for this container. You have
100 * to call this when you assign a client to an empty container to ensure that
101 * its state gets updated correctly.
104 void x_reinit(Con *con) {
105 struct con_state *state;
107 if ((state = state_for_frame(con->frame)) == NULL) {
108 ELOG("window state not found\n");
112 DLOG("resetting state %p to initial\n", state);
113 state->initial = true;
114 state->child_mapped = false;
115 memset(&(state->window_rect), 0, sizeof(Rect));
119 * Reparents the child window of the given container (necessary for sticky
120 * containers). The reparenting happens in the next call of x_push_changes().
123 void x_reparent_child(Con *con, Con *old) {
124 struct con_state *state;
125 if ((state = state_for_frame(con->frame)) == NULL) {
126 ELOG("window state for con not found\n");
130 state->need_reparent = true;
131 state->old_frame = old->frame;
135 * Moves a child window from Container src to Container dest.
138 void x_move_win(Con *src, Con *dest) {
139 struct con_state *state_src, *state_dest;
141 if ((state_src = state_for_frame(src->frame)) == NULL) {
142 ELOG("window state for src not found\n");
146 if ((state_dest = state_for_frame(dest->frame)) == NULL) {
147 ELOG("window state for dest not found\n");
151 Rect zero = { 0, 0, 0, 0 };
152 if (memcmp(&(state_dest->window_rect), &(zero), sizeof(Rect)) == 0) {
153 memcpy(&(state_dest->window_rect), &(state_src->window_rect), sizeof(Rect));
154 DLOG("COPYING RECT\n");
159 * Kills the window decoration associated with the given container.
162 void x_con_kill(Con *con) {
165 xcb_destroy_window(conn, con->frame);
166 xcb_free_pixmap(conn, con->pixmap);
167 xcb_free_gc(conn, con->pm_gc);
168 state = state_for_frame(con->frame);
169 CIRCLEQ_REMOVE(&state_head, state, state);
170 CIRCLEQ_REMOVE(&old_state_head, state, old_state);
174 /* Invalidate focused_id to correctly focus new windows with the same ID */
175 focused_id = XCB_NONE;
179 * Returns true if the client supports the given protocol atom (like WM_DELETE_WINDOW)
182 bool window_supports_protocol(xcb_window_t window, xcb_atom_t atom) {
183 xcb_get_property_cookie_t cookie;
184 xcb_icccm_get_wm_protocols_reply_t protocols;
187 cookie = xcb_icccm_get_wm_protocols_unchecked(conn, window, A_WM_PROTOCOLS);
188 if (xcb_icccm_get_wm_protocols_reply(conn, cookie, &protocols, NULL) != 1)
191 /* Check if the client’s protocols have the requested atom set */
192 for (uint32_t i = 0; i < protocols.atoms_len; i++)
193 if (protocols.atoms[i] == atom)
196 xcb_icccm_get_wm_protocols_reply_wipe(&protocols);
202 * Kills the given X11 window using WM_DELETE_WINDOW (if supported).
205 void x_window_kill(xcb_window_t window, kill_window_t kill_window) {
206 /* if this window does not support WM_DELETE_WINDOW, we kill it the hard way */
207 if (!window_supports_protocol(window, A_WM_DELETE_WINDOW)) {
208 if (kill_window == KILL_WINDOW) {
209 LOG("Killing specific window 0x%08x\n", window);
210 xcb_destroy_window(conn, window);
212 LOG("Killing the X11 client which owns window 0x%08x\n", window);
213 xcb_kill_client(conn, window);
218 xcb_client_message_event_t ev;
220 memset(&ev, 0, sizeof(xcb_client_message_event_t));
222 ev.response_type = XCB_CLIENT_MESSAGE;
224 ev.type = A_WM_PROTOCOLS;
226 ev.data.data32[0] = A_WM_DELETE_WINDOW;
227 ev.data.data32[1] = XCB_CURRENT_TIME;
229 LOG("Sending WM_DELETE to the client\n");
230 xcb_send_event(conn, false, window, XCB_EVENT_MASK_NO_EVENT, (char*)&ev);
235 * Draws the decoration of the given container onto its parent.
238 void x_draw_decoration(Con *con) {
239 Con *parent = con->parent;
240 /* This code needs to run for:
242 * • non-leaf containers which are in a stacked/tabbed container
244 * It does not need to run for:
245 * • floating containers (they don’t have a decoration)
247 if ((!con_is_leaf(con) &&
248 parent->layout != L_STACKED &&
249 parent->layout != L_TABBED) ||
250 con->type == CT_FLOATING_CON)
252 DLOG("decoration should be rendered for con %p\n", con);
254 /* Skip containers whose height is 0 (for example empty dockareas) */
255 if (con->rect.height == 0) {
256 DLOG("height == 0, not rendering\n");
260 /* 1: build deco_params and compare with cache */
261 struct deco_render_params *p = scalloc(sizeof(struct deco_render_params));
263 /* find out which colors to use */
265 p->color = &config.client.urgent;
266 else if (con == focused)
267 p->color = &config.client.focused;
268 else if (con == TAILQ_FIRST(&(parent->focus_head)))
269 p->color = &config.client.focused_inactive;
271 p->color = &config.client.unfocused;
273 p->border_style = con_border_style(con);
275 Rect *r = &(con->rect);
276 Rect *w = &(con->window_rect);
277 p->con_rect = (struct width_height){ r->width, r->height };
278 p->con_window_rect = (struct width_height){ w->width, w->height };
279 p->con_deco_rect = con->deco_rect;
280 p->background = config.client.background;
281 p->con_is_leaf = con_is_leaf(con);
282 p->font = config.font.id;
284 if (con->deco_render_params != NULL &&
285 (con->window == NULL || !con->window->name_x_changed) &&
286 !parent->pixmap_recreated &&
287 !con->pixmap_recreated &&
288 memcmp(p, con->deco_render_params, sizeof(struct deco_render_params)) == 0) {
289 DLOG("CACHE HIT, copying existing pixmaps\n");
294 DLOG("CACHE MISS\n");
296 while ((next = TAILQ_NEXT(next, nodes))) {
297 DLOG("Also invalidating cache of %p\n", next);
298 FREE(next->deco_render_params);
301 FREE(con->deco_render_params);
302 con->deco_render_params = p;
304 if (con->window != NULL && con->window->name_x_changed)
305 con->window->name_x_changed = false;
307 parent->pixmap_recreated = false;
308 con->pixmap_recreated = false;
310 /* If the con is in fullscreen mode, the decoration height we work with is set to 0 */
311 Rect deco_rect = con->deco_rect;
312 if (con_get_fullscreen_con(parent, CF_OUTPUT) == con)
313 deco_rect.height = 0;
315 /* 2: draw the client.background, but only for the parts around the client_rect */
316 if (con->window != NULL) {
317 xcb_rectangle_t background[] = {
319 { 0, 0, r->width, w->y },
321 { 0, (w->y + w->height), r->width, r->height - (w->y + w->height) },
323 { 0, 0, w->x, r->height },
325 { w->x + w->width, 0, r->width - (w->x + w->width), r->height }
328 for (int i = 0; i < 4; i++)
329 DLOG("rect is (%d, %d) with %d x %d\n",
337 xcb_change_gc_single(conn, con->pm_gc, XCB_GC_FOREGROUND, config.client.background);
338 xcb_poly_fill_rectangle(conn, con->pixmap, con->pm_gc, sizeof(background) / sizeof(xcb_rectangle_t), background);
341 /* 3: draw a rectangle in border color around the client */
342 if (p->border_style != BS_NONE && p->con_is_leaf) {
343 Rect br = con_border_style_rect(con);
345 DLOG("con->rect spans %d x %d\n", con->rect.width, con->rect.height);
346 DLOG("border_rect spans (%d, %d) with %d x %d\n", br.x, br.y, br.width, br.height);
347 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);
350 /* These rectangles represents the border around the child window
351 * (left, bottom and right part). We don’t just fill the whole
352 * rectangle because some childs are not freely resizable and we want
353 * their background color to "shine through". */
354 xcb_change_gc_single(conn, con->pm_gc, XCB_GC_FOREGROUND, p->color->background);
355 xcb_rectangle_t borders[] = {
356 { 0, 0, br.x, r->height },
357 { 0, r->height + br.height + br.y, r->width, r->height },
358 { r->width + br.width + br.x, 0, r->width, r->height }
360 xcb_poly_fill_rectangle(conn, con->pixmap, con->pm_gc, 3, borders);
361 /* 1pixel border needs an additional line at the top */
362 if (p->border_style == BS_1PIXEL) {
363 xcb_rectangle_t topline = { br.x, 0, con->rect.width + br.width + br.x, br.y };
364 xcb_poly_fill_rectangle(conn, con->pixmap, con->pm_gc, 1, &topline);
368 /* if this is a borderless/1pixel window, we don’t * need to render the
370 if (p->border_style != BS_NORMAL) {
371 DLOG("border style not BS_NORMAL, aborting rendering of decoration\n");
375 /* 4: paint the bar */
376 xcb_change_gc_single(conn, parent->pm_gc, XCB_GC_FOREGROUND, p->color->background);
377 xcb_rectangle_t drect = { con->deco_rect.x, con->deco_rect.y, con->deco_rect.width, con->deco_rect.height };
378 xcb_poly_fill_rectangle(conn, parent->pixmap, parent->pm_gc, 1, &drect);
380 /* 5: draw the two lines in border color */
381 xcb_draw_line(conn, parent->pixmap, parent->pm_gc, p->color->border,
382 con->deco_rect.x, /* x */
383 con->deco_rect.y, /* y */
384 con->deco_rect.x + con->deco_rect.width, /* to_x */
385 con->deco_rect.y); /* to_y */
386 xcb_draw_line(conn, parent->pixmap, parent->pm_gc, p->color->border,
387 con->deco_rect.x, /* x */
388 con->deco_rect.y + con->deco_rect.height - 1, /* y */
389 con->deco_rect.x + con->deco_rect.width, /* to_x */
390 con->deco_rect.y + con->deco_rect.height - 1); /* to_y */
392 /* 6: draw the title */
393 uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND | XCB_GC_FONT;
394 uint32_t values[] = { p->color->text, p->color->background, config.font.id };
395 xcb_change_gc(conn, parent->pm_gc, mask, values);
396 int text_offset_y = config.font.height + (con->deco_rect.height - config.font.height) / 2 - 1;
398 struct Window *win = con->window;
399 if (win == NULL || win->name_x == NULL) {
400 /* this is a non-leaf container, we need to make up a good description */
401 // TODO: use a good description instead of just "another container"
404 strlen("another container"),
407 con->deco_rect.x + 2,
408 con->deco_rect.y + text_offset_y,
415 int indent_level = 0,
417 Con *il_parent = parent;
418 if (il_parent->layout != L_STACKED) {
420 DLOG("il_parent = %p, layout = %d\n", il_parent, il_parent->layout);
421 if (il_parent->layout == L_STACKED)
423 if (il_parent->type == CT_WORKSPACE || il_parent->type == CT_DOCKAREA || il_parent->type == CT_OUTPUT)
425 il_parent = il_parent->parent;
429 DLOG("indent_level = %d, indent_mult = %d\n", indent_level, indent_mult);
430 int indent_px = (indent_level * 5) * indent_mult;
432 if (win->uses_net_wm_name)
438 con->deco_rect.x + 2 + indent_px,
439 con->deco_rect.y + text_offset_y,
440 (xcb_char2b_t*)win->name_x
448 con->deco_rect.x + 2 + indent_px,
449 con->deco_rect.y + text_offset_y,
454 xcb_copy_area(conn, con->pixmap, con->frame, con->pm_gc, 0, 0, 0, 0, con->rect.width, con->rect.height);
455 xcb_copy_area(conn, parent->pixmap, parent->frame, parent->pm_gc, 0, 0, 0, 0, parent->rect.width, parent->rect.height);
459 * Recursively calls x_draw_decoration. This cannot be done in x_push_node
460 * because x_push_node uses focus order to recurse (see the comment above)
461 * while drawing the decoration needs to happen in the actual order.
464 static void x_deco_recurse(Con *con) {
467 TAILQ_FOREACH(current, &(con->nodes_head), nodes)
468 x_deco_recurse(current);
470 TAILQ_FOREACH(current, &(con->floating_head), floating_windows)
471 x_deco_recurse(current);
473 if ((con->type != CT_ROOT && con->type != CT_OUTPUT) &&
475 x_draw_decoration(con);
479 * This function pushes the properties of each node of the layout tree to
480 * X11 if they have changed (like the map state, position of the window, …).
481 * It recursively traverses all children of the given node.
484 void x_push_node(Con *con) {
487 Rect rect = con->rect;
489 //DLOG("Pushing changes for node %p / %s\n", con, con->name);
490 state = state_for_frame(con->frame);
492 if (state->name != NULL) {
493 DLOG("pushing name %s for con %p\n", state->name, con);
495 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->frame,
496 A_WM_NAME, A_STRING, 8, strlen(state->name), state->name);
500 if (con->window == NULL) {
501 /* Calculate the height of all window decorations which will be drawn on to
503 uint32_t max_y = 0, max_height = 0;
504 TAILQ_FOREACH(current, &(con->nodes_head), nodes) {
505 Rect *dr = &(current->deco_rect);
506 if (dr->y >= max_y && dr->height >= max_height) {
508 max_height = dr->height;
511 rect.height = max_y + max_height;
512 if (rect.height == 0) {
513 DLOG("Unmapping container %p because it does not contain anything.\n", con);
518 /* reparent the child window (when the window was moved due to a sticky
520 if (state->need_reparent && con->window != NULL) {
521 DLOG("Reparenting child window\n");
523 /* Temporarily set the event masks to XCB_NONE so that we won’t get
524 * UnmapNotify events (otherwise the handler would close the container).
525 * These events are generated automatically when reparenting. */
526 uint32_t values[] = { XCB_NONE };
527 xcb_change_window_attributes(conn, state->old_frame, XCB_CW_EVENT_MASK, values);
528 xcb_change_window_attributes(conn, con->window->id, XCB_CW_EVENT_MASK, values);
530 xcb_reparent_window(conn, con->window->id, con->frame, 0, 0);
532 values[0] = FRAME_EVENT_MASK;
533 xcb_change_window_attributes(conn, state->old_frame, XCB_CW_EVENT_MASK, values);
534 values[0] = CHILD_EVENT_MASK;
535 xcb_change_window_attributes(conn, con->window->id, XCB_CW_EVENT_MASK, values);
537 state->old_frame = XCB_NONE;
538 state->need_reparent = false;
541 DLOG("ignore_unmap for reparenting of con %p (win 0x%08x) is now %d\n",
542 con, con->window->id, con->ignore_unmap);
545 bool fake_notify = false;
546 /* set new position if rect changed */
547 if (memcmp(&(state->rect), &rect, sizeof(Rect)) != 0) {
548 /* We first create the new pixmap, then render to it, set it as the
549 * background and only afterwards change the window size. This reduces
552 /* As the pixmap only depends on the size and not on the position, it
553 * is enough to check if width/height have changed. Also, we don’t
554 * create a pixmap at all when the window is actually not visible
556 if (rect.height > 0 &&
557 (state->rect.width != rect.width ||
558 state->rect.height != rect.height)) {
559 DLOG("CACHE: creating new pixmap for con %p (old: %d x %d, new: %d x %d)\n",
560 con, state->rect.width, state->rect.height,
561 rect.width, rect.height);
562 if (con->pixmap == 0) {
563 con->pixmap = xcb_generate_id(conn);
564 con->pm_gc = xcb_generate_id(conn);
566 xcb_free_pixmap(conn, con->pixmap);
567 xcb_free_gc(conn, con->pm_gc);
569 xcb_create_pixmap(conn, root_depth, con->pixmap, con->frame, rect.width, rect.height);
570 xcb_create_gc(conn, con->pm_gc, con->pixmap, 0, 0);
572 con->pixmap_recreated = true;
574 /* Render the decoration now to make the correct decoration visible
575 * from the very first moment. Later calls will be cached, so this
576 * doesn’t hurt performance. */
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);
614 if (!state->child_mapped && con->window != NULL) {
615 cookie = xcb_map_window(conn, con->window->id);
617 /* We are interested in EnterNotifys as soon as the window is
619 values[0] = CHILD_EVENT_MASK;
620 xcb_change_window_attributes(conn, con->window->id, XCB_CW_EVENT_MASK, values);
621 DLOG("mapping child window (serial %d)\n", cookie.sequence);
622 state->child_mapped = true;
625 cookie = xcb_map_window(conn, con->frame);
627 values[0] = FRAME_EVENT_MASK;
628 xcb_change_window_attributes(conn, con->frame, XCB_CW_EVENT_MASK, values);
630 DLOG("mapping container %08x (serial %d)\n", con->frame, cookie.sequence);
631 state->mapped = con->mapped;
634 state->unmap_now = (state->mapped != con->mapped) && !con->mapped;
637 DLOG("Sending fake configure notify\n");
638 fake_absolute_configure_notify(con);
641 /* Handle all children and floating windows of this node. We recurse
642 * in focus order to display the focused client in a stack first when
643 * switching workspaces (reduces flickering). */
644 TAILQ_FOREACH(current, &(con->focus_head), focused)
645 x_push_node(current);
649 * Same idea as in x_push_node(), but this function only unmaps windows. It is
650 * necessary to split this up to handle new fullscreen clients properly: The
651 * new window needs to be mapped and focus needs to be set *before* the
652 * underlying windows are unmapped. Otherwise, focus will revert to the
653 * PointerRoot and will then be set to the new window, generating unnecessary
654 * FocusIn/FocusOut events.
657 static void x_push_node_unmaps(Con *con) {
661 //DLOG("Pushing changes (with unmaps) for node %p / %s\n", con, con->name);
662 state = state_for_frame(con->frame);
664 /* map/unmap if map state changed, also ensure that the child window
665 * is changed if we are mapped *and* in initial state (meaning the
666 * container was empty before, but now got a child) */
667 if (state->unmap_now) {
668 xcb_void_cookie_t cookie;
669 if (con->window != NULL) {
670 /* Set WM_STATE_WITHDRAWN, it seems like Java apps need it */
671 long data[] = { XCB_ICCCM_WM_STATE_WITHDRAWN, XCB_NONE };
672 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id,
673 A_WM_STATE, A_WM_STATE, 32, 2, data);
676 cookie = xcb_unmap_window(conn, con->frame);
677 DLOG("unmapping container (serial %d)\n", cookie.sequence);
678 /* we need to increase ignore_unmap for this container (if it
679 * contains a window) and for every window "under" this one which
680 * contains a window */
681 if (con->window != NULL) {
683 DLOG("ignore_unmap for con %p (frame 0x%08x) now %d\n", con, con->frame, con->ignore_unmap);
685 state->mapped = con->mapped;
688 /* handle all children and floating windows of this node */
689 TAILQ_FOREACH(current, &(con->nodes_head), nodes)
690 x_push_node_unmaps(current);
692 TAILQ_FOREACH(current, &(con->floating_head), floating_windows)
693 x_push_node_unmaps(current);
697 * Pushes all changes (state of each node, see x_push_node() and the window
700 * NOTE: We need to push the stack first so that the windows have the correct
701 * stacking order. This is relevant for workspace switching where we map the
702 * windows because mapping may generate EnterNotify events. When they are
703 * generated in the wrong order, this will cause focus problems when switching
707 void x_push_changes(Con *con) {
710 DLOG("-- PUSHING WINDOW STACK --\n");
711 //DLOG("Disabling EnterNotify\n");
712 uint32_t values[1] = { XCB_NONE };
713 CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) {
714 xcb_change_window_attributes(conn, state->id, XCB_CW_EVENT_MASK, values);
716 //DLOG("Done, EnterNotify disabled\n");
717 bool order_changed = false;
718 /* X11 correctly represents the stack if we push it from bottom to top */
719 CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) {
720 //DLOG("stack: 0x%08x\n", state->id);
721 con_state *prev = CIRCLEQ_PREV(state, state);
722 con_state *old_prev = CIRCLEQ_PREV(state, old_state);
723 if (prev != old_prev)
724 order_changed = true;
725 if ((state->initial || order_changed) && prev != CIRCLEQ_END(&state_head)) {
726 DLOG("Stacking 0x%08x above 0x%08x\n", prev->id, state->id);
728 mask |= XCB_CONFIG_WINDOW_SIBLING;
729 mask |= XCB_CONFIG_WINDOW_STACK_MODE;
730 uint32_t values[] = {state->id, XCB_STACK_MODE_ABOVE};
732 xcb_configure_window(conn, prev->id, mask, values);
734 state->initial = false;
736 //DLOG("Re-enabling EnterNotify\n");
737 CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) {
738 values[0] = FRAME_EVENT_MASK;
740 values[0] &= ~XCB_EVENT_MASK_ENTER_WINDOW;
741 xcb_change_window_attributes(conn, state->id, XCB_CW_EVENT_MASK, values);
743 //DLOG("Done, EnterNotify re-enabled\n");
745 DLOG("\n\n PUSHING CHANGES\n\n");
749 xcb_window_t to_focus = focused->frame;
750 if (focused->window != NULL)
751 to_focus = focused->window->id;
753 DLOG("focused_id = 0x%08x, to_focus = 0x%08x\n", focused_id, to_focus);
754 if (focused_id != to_focus) {
755 if (!focused->mapped) {
756 DLOG("Not updating focus (to %p / %s), focused window is not mapped.\n", focused, focused->name);
757 /* Invalidate focused_id to correctly focus new windows with the same ID */
758 focused_id = XCB_NONE;
760 DLOG("Updating focus (focused: %p / %s)\n", focused, focused->name);
761 /* We remove XCB_EVENT_MASK_FOCUS_CHANGE from the event mask to get
762 * no focus change events for our own focus changes. We only want
763 * these generated by the clients. */
764 if (focused->window != NULL) {
765 values[0] = CHILD_EVENT_MASK & ~(XCB_EVENT_MASK_FOCUS_CHANGE);
766 xcb_change_window_attributes(conn, focused->window->id, XCB_CW_EVENT_MASK, values);
768 xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, to_focus, XCB_CURRENT_TIME);
769 if (focused->window != NULL) {
770 values[0] = CHILD_EVENT_MASK;
771 xcb_change_window_attributes(conn, focused->window->id, XCB_CW_EVENT_MASK, values);
774 if (focused->window != NULL &&
775 focused->window->needs_take_focus) {
776 send_take_focus(to_focus);
779 ewmh_update_active_window(to_focus);
780 focused_id = to_focus;
784 if (focused_id == XCB_NONE) {
785 DLOG("Still no window focused, better set focus to the root window\n");
786 xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, root, XCB_CURRENT_TIME);
791 DLOG("\n\n ENDING CHANGES\n\n");
793 /* Disable EnterWindow events for windows which will be unmapped in
794 * x_push_node_unmaps() now. Unmapping windows happens when switching
795 * workspaces. We want to avoid getting EnterNotifies during that phase
796 * because they would screw up our focus. One of these cases is having a
797 * stack with two windows. If the first window is focused and gets
798 * unmapped, the second one appears under the cursor and therefore gets an
799 * EnterNotify event. */
800 values[0] = FRAME_EVENT_MASK & ~XCB_EVENT_MASK_ENTER_WINDOW;
801 CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) {
802 if (!state->unmap_now)
804 xcb_change_window_attributes(conn, state->id, XCB_CW_EVENT_MASK, values);
807 /* Push all pending unmaps */
808 x_push_node_unmaps(con);
810 /* save the current stack as old stack */
811 CIRCLEQ_FOREACH(state, &state_head, state) {
812 CIRCLEQ_REMOVE(&old_state_head, state, old_state);
813 CIRCLEQ_INSERT_TAIL(&old_state_head, state, old_state);
815 //CIRCLEQ_FOREACH(state, &old_state_head, old_state) {
816 // DLOG("old stack: 0x%08x\n", state->id);
823 * Raises the specified container in the internal stack of X windows. The
824 * next call to x_push_changes() will make the change visible in X11.
827 void x_raise_con(Con *con) {
829 state = state_for_frame(con->frame);
830 //DLOG("raising in new stack: %p / %s / %s / xid %08x\n", con, con->name, con->window ? con->window->name_json : "", state->id);
832 CIRCLEQ_REMOVE(&state_head, state, state);
833 CIRCLEQ_INSERT_HEAD(&state_head, state, state);
837 * Sets the WM_NAME property (so, no UTF8, but used only for debugging anyways)
838 * of the given name. Used for properly tagging the windows for easily spotting
839 * i3 windows in xwininfo -root -all.
842 void x_set_name(Con *con, const char *name) {
843 struct con_state *state;
845 if ((state = state_for_frame(con->frame)) == NULL) {
846 ELOG("window state not found\n");
851 state->name = sstrdup(name);
855 * Sets up i3 specific atoms (I3_SOCKET_PATH and I3_CONFIG_PATH)
858 void x_set_i3_atoms() {
859 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, A_I3_SOCKET_PATH, A_UTF8_STRING, 8,
860 (current_socketpath == NULL ? 0 : strlen(current_socketpath)),
862 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, A_I3_CONFIG_PATH, A_UTF8_STRING, 8,
863 strlen(current_configpath), current_configpath);