i3
manage.c
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1/*
2 * vim:ts=4:sw=4:expandtab
3 *
4 * i3 - an improved tiling window manager
5 * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
6 *
7 * manage.c: Initially managing new windows (or existing ones on restart).
8 *
9 */
10#include "all.h"
11
12/*
13 * Match frame and window depth. This is needed because X will refuse to reparent a
14 * window whose background is ParentRelative under a window with a different depth.
15 *
16 */
17static xcb_window_t _match_depth(i3Window *win, Con *con) {
18 xcb_window_t old_frame = XCB_NONE;
19 if (con->depth != win->depth) {
20 old_frame = con->frame.id;
21 con->depth = win->depth;
22 x_con_reframe(con);
23 }
24 return old_frame;
25}
26
27/*
28 * Remove all match criteria, the first swallowed window wins.
29 *
30 */
31static void _remove_matches(Con *con) {
32 while (!TAILQ_EMPTY(&(con->swallow_head))) {
33 Match *first = TAILQ_FIRST(&(con->swallow_head));
34 TAILQ_REMOVE(&(con->swallow_head), first, matches);
35 match_free(first);
36 free(first);
37 }
38}
39
40/*
41 * Go through all existing windows (if the window manager is restarted) and manage them
42 *
43 */
44void manage_existing_windows(xcb_window_t root) {
45 xcb_query_tree_reply_t *reply;
46 int i, len;
47 xcb_window_t *children;
48 xcb_get_window_attributes_cookie_t *cookies;
49
50 /* Get the tree of windows whose parent is the root window (= all) */
51 if ((reply = xcb_query_tree_reply(conn, xcb_query_tree(conn, root), 0)) == NULL) {
52 return;
53 }
54
55 len = xcb_query_tree_children_length(reply);
56 cookies = smalloc(len * sizeof(*cookies));
57
58 /* Request the window attributes for every window */
59 children = xcb_query_tree_children(reply);
60 for (i = 0; i < len; ++i) {
61 cookies[i] = xcb_get_window_attributes(conn, children[i]);
62 }
63
64 /* Call manage_window with the attributes for every window */
65 for (i = 0; i < len; ++i) {
66 manage_window(children[i], cookies[i], true);
67 }
68
69 free(reply);
70 free(cookies);
71}
72
73/*
74 * Restores the geometry of each window by reparenting it to the root window
75 * at the position of its frame.
76 *
77 * This is to be called *only* before exiting/restarting i3 because of evil
78 * side-effects which are to be expected when continuing to run i3.
79 *
80 */
81void restore_geometry(void) {
82 DLOG("Restoring geometry\n");
83
84 Con *con;
86 if (con->window) {
87 DLOG("Re-adding X11 border of %d px\n", con->border_width);
88 con->window_rect.width += (2 * con->border_width);
89 con->window_rect.height += (2 * con->border_width);
91 DLOG("placing window %08x at %d %d\n", con->window->id, con->rect.x, con->rect.y);
92 xcb_reparent_window(conn, con->window->id, root,
93 con->rect.x, con->rect.y);
94 }
95 }
96
97 /* Strictly speaking, this line doesn’t really belong here, but since we
98 * are syncing, let’s un-register as a window manager first */
99 xcb_change_window_attributes(conn, root, XCB_CW_EVENT_MASK, (uint32_t[]){XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT});
100
101 /* Make sure our changes reach the X server, we restart/exit now */
102 xcb_aux_sync(conn);
103}
104
105/*
106 * Do some sanity checks and then reparent the window.
107 *
108 */
109void manage_window(xcb_window_t window, xcb_get_window_attributes_cookie_t cookie,
110 bool needs_to_be_mapped) {
111 DLOG("window 0x%08x\n", window);
112
113 xcb_drawable_t d = {window};
114 xcb_get_geometry_cookie_t geomc;
115 xcb_get_geometry_reply_t *geom;
116 xcb_get_window_attributes_reply_t *attr = NULL;
117
118 xcb_get_property_cookie_t wm_type_cookie, strut_cookie, state_cookie,
119 utf8_title_cookie, title_cookie,
120 class_cookie, leader_cookie, transient_cookie,
121 role_cookie, startup_id_cookie, wm_hints_cookie,
122 wm_normal_hints_cookie, motif_wm_hints_cookie, wm_user_time_cookie, wm_desktop_cookie,
123 wm_machine_cookie;
124
125 xcb_get_property_cookie_t wm_icon_cookie;
126
127 geomc = xcb_get_geometry(conn, d);
128
129 /* Check if the window is mapped (it could be not mapped when initializing and
130 calling manage_window() for every window) */
131 if ((attr = xcb_get_window_attributes_reply(conn, cookie, 0)) == NULL) {
132 DLOG("Could not get attributes\n");
133 xcb_discard_reply(conn, geomc.sequence);
134 return;
135 }
136
137 if (needs_to_be_mapped && attr->map_state != XCB_MAP_STATE_VIEWABLE) {
138 xcb_discard_reply(conn, geomc.sequence);
139 goto out;
140 }
141
142 /* Don’t manage clients with the override_redirect flag */
143 if (attr->override_redirect) {
144 xcb_discard_reply(conn, geomc.sequence);
145 goto out;
146 }
147
148 /* Check if the window is already managed */
149 if (con_by_window_id(window) != NULL) {
150 DLOG("already managed (by con %p)\n", con_by_window_id(window));
151 xcb_discard_reply(conn, geomc.sequence);
152 goto out;
153 }
154
155 /* Get the initial geometry (position, size, …) */
156 if ((geom = xcb_get_geometry_reply(conn, geomc, 0)) == NULL) {
157 DLOG("could not get geometry\n");
158 goto out;
159 }
160
161 uint32_t values[1];
162
163 /* Set a temporary event mask for the new window, consisting only of
164 * PropertyChange and StructureNotify. We need to be notified of
165 * PropertyChanges because the client can change its properties *after* we
166 * requested them but *before* we actually reparented it and have set our
167 * final event mask.
168 * We need StructureNotify because the client may unmap the window before
169 * we get to re-parent it.
170 * If this request fails, we assume the client has already unmapped the
171 * window between the MapRequest and our event mask change. */
172 values[0] = XCB_EVENT_MASK_PROPERTY_CHANGE |
173 XCB_EVENT_MASK_STRUCTURE_NOTIFY;
174 xcb_void_cookie_t event_mask_cookie =
175 xcb_change_window_attributes_checked(conn, window, XCB_CW_EVENT_MASK, values);
176 if (xcb_request_check(conn, event_mask_cookie) != NULL) {
177 LOG("Could not change event mask, the window probably already disappeared.\n");
178 goto out;
179 }
180
181#define GET_PROPERTY(atom, len) xcb_get_property(conn, false, window, atom, XCB_GET_PROPERTY_TYPE_ANY, 0, len)
182
183 wm_type_cookie = GET_PROPERTY(A__NET_WM_WINDOW_TYPE, UINT32_MAX);
184 strut_cookie = GET_PROPERTY(A__NET_WM_STRUT_PARTIAL, UINT32_MAX);
185 state_cookie = GET_PROPERTY(A__NET_WM_STATE, UINT32_MAX);
186 utf8_title_cookie = GET_PROPERTY(A__NET_WM_NAME, 128);
187 leader_cookie = GET_PROPERTY(A_WM_CLIENT_LEADER, UINT32_MAX);
188 transient_cookie = GET_PROPERTY(XCB_ATOM_WM_TRANSIENT_FOR, UINT32_MAX);
189 title_cookie = GET_PROPERTY(XCB_ATOM_WM_NAME, 128);
190 class_cookie = GET_PROPERTY(XCB_ATOM_WM_CLASS, 128);
191 role_cookie = GET_PROPERTY(A_WM_WINDOW_ROLE, 128);
192 startup_id_cookie = GET_PROPERTY(A__NET_STARTUP_ID, 512);
193 wm_hints_cookie = xcb_icccm_get_wm_hints(conn, window);
194 wm_normal_hints_cookie = xcb_icccm_get_wm_normal_hints(conn, window);
195 motif_wm_hints_cookie = GET_PROPERTY(A__MOTIF_WM_HINTS, 5 * sizeof(uint64_t));
196 wm_user_time_cookie = GET_PROPERTY(A__NET_WM_USER_TIME, UINT32_MAX);
197 wm_desktop_cookie = GET_PROPERTY(A__NET_WM_DESKTOP, UINT32_MAX);
198 wm_machine_cookie = GET_PROPERTY(XCB_ATOM_WM_CLIENT_MACHINE, UINT32_MAX);
199 wm_icon_cookie = GET_PROPERTY(A__NET_WM_ICON, UINT32_MAX);
200
201 i3Window *cwindow = scalloc(1, sizeof(i3Window));
202 cwindow->id = window;
203 cwindow->depth = get_visual_depth(attr->visual);
204
205 int *buttons = bindings_get_buttons_to_grab();
206 xcb_grab_buttons(conn, window, buttons);
207 FREE(buttons);
208
209 /* update as much information as possible so far (some replies may be NULL) */
210 window_update_class(cwindow, xcb_get_property_reply(conn, class_cookie, NULL));
211 window_update_name_legacy(cwindow, xcb_get_property_reply(conn, title_cookie, NULL));
212 window_update_name(cwindow, xcb_get_property_reply(conn, utf8_title_cookie, NULL));
213 window_update_icon(cwindow, xcb_get_property_reply(conn, wm_icon_cookie, NULL));
214 window_update_leader(cwindow, xcb_get_property_reply(conn, leader_cookie, NULL));
215 window_update_transient_for(cwindow, xcb_get_property_reply(conn, transient_cookie, NULL));
216 window_update_strut_partial(cwindow, xcb_get_property_reply(conn, strut_cookie, NULL));
217 window_update_role(cwindow, xcb_get_property_reply(conn, role_cookie, NULL));
218 bool urgency_hint;
219 window_update_hints(cwindow, xcb_get_property_reply(conn, wm_hints_cookie, NULL), &urgency_hint);
220 border_style_t motif_border_style;
221 bool has_mwm_hints = window_update_motif_hints(cwindow, xcb_get_property_reply(conn, motif_wm_hints_cookie, NULL), &motif_border_style);
222 window_update_normal_hints(cwindow, xcb_get_property_reply(conn, wm_normal_hints_cookie, NULL), geom);
223 window_update_machine(cwindow, xcb_get_property_reply(conn, wm_machine_cookie, NULL));
224 xcb_get_property_reply_t *type_reply = xcb_get_property_reply(conn, wm_type_cookie, NULL);
225 xcb_get_property_reply_t *state_reply = xcb_get_property_reply(conn, state_cookie, NULL);
226
227 xcb_get_property_reply_t *startup_id_reply;
228 startup_id_reply = xcb_get_property_reply(conn, startup_id_cookie, NULL);
229 char *startup_ws = startup_workspace_for_window(cwindow, startup_id_reply);
230 DLOG("startup workspace = %s\n", startup_ws);
231
232 /* Get _NET_WM_DESKTOP if it was set. */
233 xcb_get_property_reply_t *wm_desktop_reply;
234 wm_desktop_reply = xcb_get_property_reply(conn, wm_desktop_cookie, NULL);
236 if (wm_desktop_reply != NULL && xcb_get_property_value_length(wm_desktop_reply) != 0) {
237 uint32_t *wm_desktops = xcb_get_property_value(wm_desktop_reply);
238 cwindow->wm_desktop = (int32_t)wm_desktops[0];
239 }
240 FREE(wm_desktop_reply);
241
242 /* check if the window needs WM_TAKE_FOCUS */
243 cwindow->needs_take_focus = window_supports_protocol(cwindow->id, A_WM_TAKE_FOCUS);
244
245 /* read the preferred _NET_WM_WINDOW_TYPE atom */
246 cwindow->window_type = xcb_get_preferred_window_type(type_reply);
247
248 /* Where to start searching for a container that swallows the new one? */
249 Con *search_at = croot;
250
251 if (xcb_reply_contains_atom(type_reply, A__NET_WM_WINDOW_TYPE_DOCK)) {
252 LOG("This window is of type dock\n");
253 Output *output = get_output_containing(geom->x, geom->y);
254 if (output != NULL) {
255 DLOG("Starting search at output %s\n", output_primary_name(output));
256 search_at = output->con;
257 }
258
259 /* find out the desired position of this dock window */
260 if (cwindow->reserved.top > 0 && cwindow->reserved.bottom == 0) {
261 DLOG("Top dock client\n");
262 cwindow->dock = W_DOCK_TOP;
263 } else if (cwindow->reserved.top == 0 && cwindow->reserved.bottom > 0) {
264 DLOG("Bottom dock client\n");
265 cwindow->dock = W_DOCK_BOTTOM;
266 } else {
267 DLOG("Ignoring invalid reserved edges (_NET_WM_STRUT_PARTIAL), using position as fallback:\n");
268 if (geom->y < (int16_t)(search_at->rect.height / 2)) {
269 DLOG("geom->y = %d < rect.height / 2 = %d, it is a top dock client\n",
270 geom->y, (search_at->rect.height / 2));
271 cwindow->dock = W_DOCK_TOP;
272 } else {
273 DLOG("geom->y = %d >= rect.height / 2 = %d, it is a bottom dock client\n",
274 geom->y, (search_at->rect.height / 2));
275 cwindow->dock = W_DOCK_BOTTOM;
276 }
277 }
278 }
279
280 DLOG("Initial geometry: (%d, %d, %d, %d)\n", geom->x, geom->y, geom->width, geom->height);
281
282 /* See if any container swallows this new window */
283 cwindow->swallowed = false;
284 Match *match = NULL;
285 Con *nc = con_for_window(search_at, cwindow, &match);
286 const bool match_from_restart_mode = (match && match->restart_mode);
287 if (nc == NULL) {
288 Con *wm_desktop_ws = NULL;
289 Assignment *assignment;
290
291 /* If not, check if it is assigned to a specific workspace */
292 if ((assignment = assignment_for(cwindow, A_TO_WORKSPACE)) ||
293 (assignment = assignment_for(cwindow, A_TO_WORKSPACE_NUMBER))) {
294 DLOG("Assignment matches (%p)\n", match);
295
296 Con *assigned_ws = NULL;
297 if (assignment->type == A_TO_WORKSPACE_NUMBER) {
298 long parsed_num = ws_name_to_number(assignment->dest.workspace);
299
300 assigned_ws = get_existing_workspace_by_num(parsed_num);
301 }
302 /* A_TO_WORKSPACE type assignment or fallback from A_TO_WORKSPACE_NUMBER
303 * when the target workspace number does not exist yet. */
304 if (!assigned_ws) {
305 assigned_ws = workspace_get(assignment->dest.workspace);
306 }
307
308 nc = con_descend_tiling_focused(assigned_ws);
309 DLOG("focused on ws %s: %p / %s\n", assigned_ws->name, nc, nc->name);
310 if (nc->type == CT_WORKSPACE) {
311 nc = tree_open_con(nc, cwindow);
312 } else {
313 nc = tree_open_con(nc->parent, cwindow);
314 }
315
316 /* set the urgency hint on the window if the workspace is not visible */
317 if (!workspace_is_visible(assigned_ws)) {
318 urgency_hint = true;
319 }
320 } else if (cwindow->wm_desktop != NET_WM_DESKTOP_NONE &&
321 cwindow->wm_desktop != NET_WM_DESKTOP_ALL &&
322 (wm_desktop_ws = ewmh_get_workspace_by_index(cwindow->wm_desktop)) != NULL) {
323 /* If _NET_WM_DESKTOP is set to a specific desktop, we open it
324 * there. Note that we ignore the special value 0xFFFFFFFF here
325 * since such a window will be made sticky anyway. */
326
327 DLOG("Using workspace %p / %s because _NET_WM_DESKTOP = %d.\n",
328 wm_desktop_ws, wm_desktop_ws->name, cwindow->wm_desktop);
329
330 nc = con_descend_tiling_focused(wm_desktop_ws);
331 if (nc->type == CT_WORKSPACE) {
332 nc = tree_open_con(nc, cwindow);
333 } else {
334 nc = tree_open_con(nc->parent, cwindow);
335 }
336 } else if (startup_ws) {
337 /* If it was started on a specific workspace, we want to open it there. */
338 DLOG("Using workspace on which this application was started (%s)\n", startup_ws);
340 DLOG("focused on ws %s: %p / %s\n", startup_ws, nc, nc->name);
341 if (nc->type == CT_WORKSPACE) {
342 nc = tree_open_con(nc, cwindow);
343 } else {
344 nc = tree_open_con(nc->parent, cwindow);
345 }
346 } else {
347 /* If not, insert it at the currently focused position */
348 if (focused->type == CT_CON && con_accepts_window(focused)) {
349 LOG("using current container, focused = %p, focused->name = %s\n",
351 nc = focused;
352 } else {
353 nc = tree_open_con(NULL, cwindow);
354 }
355 }
356
357 if ((assignment = assignment_for(cwindow, A_TO_OUTPUT))) {
358 con_move_to_output_name(nc, assignment->dest.output, true);
359 }
360 } else {
361 /* M_BELOW inserts the new window as a child of the one which was
362 * matched (e.g. dock areas) */
363 if (match != NULL && match->insert_where == M_BELOW) {
364 nc = tree_open_con(nc, cwindow);
365 }
366
367 /* If M_BELOW is not used, the container is replaced. This happens with
368 * "swallows" criteria that are used for stored layouts, in which case
369 * we need to remove that criterion, because they should only be valid
370 * once. */
371 if (match != NULL && match->insert_where != M_BELOW) {
372 DLOG("Removing match %p from container %p\n", match, nc);
373 TAILQ_REMOVE(&(nc->swallow_head), match, matches);
374 match_free(match);
375 FREE(match);
376 }
377
378 cwindow->swallowed = true;
379 }
380
381 DLOG("new container = %p\n", nc);
382 if (nc->window != NULL && nc->window != cwindow) {
384 DLOG("Uh?! Container without a placeholder, but with a window, has swallowed this to-be-managed window?!\n");
385 } else {
386 /* Remove remaining criteria, the first swallowed window wins. */
387 _remove_matches(nc);
388 }
389 }
390 xcb_window_t old_frame = XCB_NONE;
391 if (nc->window != cwindow && nc->window != NULL) {
392 window_free(nc->window);
393 old_frame = _match_depth(cwindow, nc);
394 }
395 nc->window = cwindow;
396 x_reinit(nc);
397
398 nc->border_width = geom->border_width;
399
400 char *name;
401 sasprintf(&name, "[i3 con] container around %p", cwindow);
402 x_set_name(nc, name);
403 free(name);
404
405 /* handle fullscreen containers */
406 Con *ws = con_get_workspace(nc);
408
409 if (xcb_reply_contains_atom(state_reply, A__NET_WM_STATE_FULLSCREEN)) {
410 /* If this window is already fullscreen (after restarting!), skip
411 * toggling fullscreen, that would drop it out of fullscreen mode. */
412 if (fs != nc) {
413 Output *output = get_output_with_dimensions((Rect){geom->x, geom->y, geom->width, geom->height});
414 /* If the requested window geometry spans the whole area
415 * of an output, move the window to that output. This is
416 * needed e.g. for LibreOffice Impress multi-monitor
417 * presentations to work out of the box. */
418 if (output != NULL) {
419 con_move_to_output(nc, output, false);
420 }
422 }
423 fs = NULL;
424 }
425
426 bool set_focus = false;
427
428 if (fs == NULL) {
429 DLOG("Not in fullscreen mode, focusing\n");
430 if (!cwindow->dock) {
431 /* Check that the workspace is visible and on the same output as
432 * the current focused container. If the window was assigned to an
433 * invisible workspace, we should not steal focus. */
434 Con *current_output = con_get_output(focused);
435 Con *target_output = con_get_output(ws);
436
437 if (workspace_is_visible(ws) && current_output == target_output) {
438 if (!match_from_restart_mode) {
439 set_focus = true;
440 } else {
441 DLOG("not focusing, matched with restart_mode == true\n");
442 }
443 } else {
444 DLOG("workspace not visible, not focusing\n");
445 }
446 } else {
447 DLOG("dock, not focusing\n");
448 }
449 } else {
450 DLOG("fs = %p, ws = %p, not focusing\n", fs, ws);
451 /* Insert the new container in focus stack *after* the currently
452 * focused (fullscreen) con. This way, the new container will be
453 * focused after we return from fullscreen mode */
454 Con *first = TAILQ_FIRST(&(nc->parent->focus_head));
455 if (first != nc) {
456 /* We only modify the focus stack if the container is not already
457 * the first one. This can happen when existing containers swallow
458 * new windows, for example when restarting. */
459 TAILQ_REMOVE(&(nc->parent->focus_head), nc, focused);
460 TAILQ_INSERT_AFTER(&(nc->parent->focus_head), first, nc, focused);
461 }
462 }
463
464 /* set floating if necessary */
465 bool want_floating = false;
466 if (xcb_reply_contains_atom(type_reply, A__NET_WM_WINDOW_TYPE_DIALOG) ||
467 xcb_reply_contains_atom(type_reply, A__NET_WM_WINDOW_TYPE_UTILITY) ||
468 xcb_reply_contains_atom(type_reply, A__NET_WM_WINDOW_TYPE_TOOLBAR) ||
469 xcb_reply_contains_atom(type_reply, A__NET_WM_WINDOW_TYPE_NOTIFICATION) ||
470 xcb_reply_contains_atom(type_reply, A__NET_WM_WINDOW_TYPE_SPLASH) ||
471 xcb_reply_contains_atom(state_reply, A__NET_WM_STATE_MODAL) ||
472 (cwindow->max_width > 0 && cwindow->max_height > 0 &&
473 cwindow->min_height == cwindow->max_height &&
474 cwindow->min_width == cwindow->max_width)) {
475 LOG("This window is a dialog window, setting floating\n");
476 want_floating = true;
477 }
478
479 if (xcb_reply_contains_atom(state_reply, A__NET_WM_STATE_STICKY)) {
480 nc->sticky = true;
481 }
482
483 /* We ignore the hint for an internal workspace because windows in the
484 * scratchpad also have this value, but upon restarting i3 we don't want
485 * them to become sticky windows. */
486 if (cwindow->wm_desktop == NET_WM_DESKTOP_ALL && (ws == NULL || !con_is_internal(ws))) {
487 DLOG("This window has _NET_WM_DESKTOP = 0xFFFFFFFF. Will float it and make it sticky.\n");
488 nc->sticky = true;
489 want_floating = true;
490 }
491
492 FREE(state_reply);
493 FREE(type_reply);
494
495 if (cwindow->transient_for != XCB_NONE ||
496 (cwindow->leader != XCB_NONE &&
497 cwindow->leader != cwindow->id &&
498 con_by_window_id(cwindow->leader) != NULL)) {
499 DLOG("This window is transient for another window, setting floating\n");
500 want_floating = true;
501
502 if (config.popup_during_fullscreen == PDF_LEAVE_FULLSCREEN &&
503 fs != NULL) {
504 DLOG("There is a fullscreen window, leaving fullscreen mode\n");
506 } else if (config.popup_during_fullscreen == PDF_SMART &&
507 fs != NULL &&
508 fs->window != NULL) {
509 set_focus = con_find_transient_for_window(nc, fs->window->id);
510 }
511 }
512
513 /* dock clients cannot be floating, that makes no sense */
514 if (cwindow->dock) {
515 want_floating = false;
516 }
517
518 /* Store the requested geometry. The width/height gets raised to at least
519 * 75x50 when entering floating mode, which is the minimum size for a
520 * window to be useful (smaller windows are usually overlays/toolbars/…
521 * which are not managed by the wm anyways). We store the original geometry
522 * here because it’s used for dock clients. */
523 if (nc->geometry.width == 0) {
524 nc->geometry = (Rect){geom->x, geom->y, geom->width, geom->height};
525 }
526
527 if (config.popup_during_fullscreen == PDF_ALL && want_floating && fs != NULL) {
528 set_focus = true;
529 }
530
531 if (want_floating) {
532 DLOG("geometry = %d x %d\n", nc->geometry.width, nc->geometry.height);
533 if (floating_enable(nc, true)) {
534 nc->floating = FLOATING_AUTO_ON;
535 }
536 }
537
538 if (has_mwm_hints) {
539 DLOG("MOTIF_WM_HINTS specifies decorations (border_style = %d)\n", motif_border_style);
540 if (want_floating) {
542 } else {
543 con_set_border_style(nc, motif_border_style, config.default_border_width);
544 }
545 }
546
547 /* explicitly set the border width to the default */
548 if (nc->current_border_width == -1) {
550 }
551
552 /* to avoid getting an UnmapNotify event due to reparenting, we temporarily
553 * declare no interest in any state change event of this window */
554 values[0] = XCB_NONE;
555 xcb_change_window_attributes(conn, window, XCB_CW_EVENT_MASK, values);
556
557 xcb_void_cookie_t rcookie = xcb_reparent_window_checked(conn, window, nc->frame.id, 0, 0);
558 if (xcb_request_check(conn, rcookie) != NULL) {
559 LOG("Could not reparent the window, aborting\n");
560 goto geom_out;
561 }
562
563 values[0] = CHILD_EVENT_MASK & ~XCB_EVENT_MASK_ENTER_WINDOW;
564 xcb_change_window_attributes(conn, window, XCB_CW_EVENT_MASK, values);
565 xcb_flush(conn);
566
567 /* Put the client inside the save set. Upon termination (whether killed or
568 * normal exit does not matter) of the window manager, these clients will
569 * be correctly reparented to their most closest living ancestor (=
570 * cleanup) */
571 xcb_change_save_set(conn, XCB_SET_MODE_INSERT, window);
572
573 if (shape_supported) {
574 /* Receive ShapeNotify events whenever the client altered its window
575 * shape. */
576 xcb_shape_select_input(conn, window, true);
577
578 /* Check if the window is shaped. Sadly, we can check only for the
579 * bounding shape, not for the input shape. */
580 xcb_shape_query_extents_cookie_t cookie =
581 xcb_shape_query_extents(conn, window);
582 xcb_shape_query_extents_reply_t *reply =
583 xcb_shape_query_extents_reply(conn, cookie, NULL);
584 if (reply != NULL && reply->bounding_shaped) {
585 cwindow->shaped = true;
586 }
587 FREE(reply);
588 }
589
590 /* Check if any assignments match */
591 run_assignments(cwindow);
592
593 /* 'ws' may be invalid because of the assignments, e.g. when the user uses
594 * "move window to workspace 1", but had it assigned to workspace 2. */
595 ws = con_get_workspace(nc);
596
597 /* If this window was put onto an invisible workspace (via assignments), we
598 * render this workspace. It wouldn’t be rendered in our normal code path
599 * because only the visible workspaces get rendered.
600 *
601 * By rendering the workspace, we assign proper coordinates (read: not
602 * width=0, height=0) to the window, which is important for windows who
603 * actually use them to position their GUI elements, e.g. rhythmbox. */
604 if (ws && !workspace_is_visible(ws)) {
605 /* This is a bit hackish: we need to copy the content container’s rect
606 * to the workspace, because calling render_con() on the content
607 * container would also take the shortcut and not render the invisible
608 * workspace at all. However, just calling render_con() on the
609 * workspace isn’t enough either — it needs the rect. */
610 ws->rect = ws->parent->rect;
611 render_con(ws);
612 /* Disable setting focus, otherwise we’d move focus to an invisible
613 * workspace, which we generally prevent (e.g. in
614 * con_move_to_workspace). */
615 set_focus = false;
616 }
618
619 cwindow->managed_since = time(NULL);
620
621 /* Send an event about window creation */
622 ipc_send_window_event("new", nc);
623
624 if (set_focus && assignment_for(cwindow, A_NO_FOCUS) != NULL) {
625 /* The first window on a workspace should always be focused. We have to
626 * compare with == 1 because the container has already been inserted at
627 * this point. */
628 if (con_num_windows(ws) == 1) {
629 DLOG("This is the first window on this workspace, ignoring no_focus.\n");
630 } else {
631 DLOG("no_focus was set for con = %p, not setting focus.\n", nc);
632 set_focus = false;
633 }
634 }
635
636 if (set_focus) {
637 DLOG("Checking con = %p for _NET_WM_USER_TIME.\n", nc);
638
639 uint32_t *wm_user_time;
640 xcb_get_property_reply_t *wm_user_time_reply = xcb_get_property_reply(conn, wm_user_time_cookie, NULL);
641 if (wm_user_time_reply != NULL && xcb_get_property_value_length(wm_user_time_reply) != 0 &&
642 (wm_user_time = xcb_get_property_value(wm_user_time_reply)) &&
643 wm_user_time[0] == 0) {
644 DLOG("_NET_WM_USER_TIME set to 0, not focusing con = %p.\n", nc);
645 set_focus = false;
646 }
647
648 FREE(wm_user_time_reply);
649 } else {
650 xcb_discard_reply(conn, wm_user_time_cookie.sequence);
651 }
652
653 /* Even if the client doesn't want focus, we still need to focus the
654 * container to not break focus workflows. Our handling towards X will take
655 * care of not setting the input focus. However, one exception to this are
656 * clients using the globally active input model which we don't want to
657 * focus at all. */
659 set_focus = false;
660 }
661
662 /* Defer setting focus after the 'new' event has been sent to ensure the
663 * proper window event sequence. */
664 if (set_focus && nc->mapped) {
665 DLOG("Now setting focus.\n");
666 con_activate(nc);
667 }
668
669 tree_render();
670
671 /* Destroy the old frame if we had to reframe the container. This needs to be done
672 * after rendering in order to prevent the background from flickering in its place. */
673 if (old_frame != XCB_NONE) {
674 xcb_destroy_window(conn, old_frame);
675 }
676
677 /* Windows might get managed with the urgency hint already set (Pidgin is
678 * known to do that), so check for that and handle the hint accordingly.
679 * This code needs to be in this part of manage_window() because the window
680 * needs to be on the final workspace first. */
681 con_set_urgency(nc, urgency_hint);
682
683 /* Update _NET_WM_DESKTOP. We invalidate the cached value first to force an update. */
686
687 /* If a sticky window was mapped onto another workspace, make sure to pop it to the front. */
689
690geom_out:
691 free(geom);
692out:
693 free(attr);
694}
695
697 /* Make sure this windows hasn't already been swallowed. */
698 if (con->window->swallowed) {
699 return NULL;
700 }
701 Match *match;
702 Con *nc = con_for_window(croot, con->window, &match);
703 if (nc == NULL || nc->window == NULL || nc->window == con->window) {
704 return NULL;
705 }
706 /* Make sure the placeholder that wants to swallow this window didn't spawn
707 * after the window to follow current behavior: adding a placeholder won't
708 * swallow windows currently managed. */
709 if (nc->window->managed_since > con->window->managed_since) {
710 return NULL;
711 }
712 return nc;
713}
714
715/*
716 * Remanages a window: performs a swallow check and runs assignments.
717 * Returns con for the window regardless if it updated.
718 *
719 */
721 Con *nc = placeholder_for_con(con);
722 if (!nc) {
723 /* The con is not updated, just run assignments */
725 return con;
726 }
727
729 DLOG("Uh?! Container without a placeholder, but with a window, has swallowed this managed window?!\n");
730 } else {
731 _remove_matches(nc);
732 }
733 window_free(nc->window);
734
735 xcb_window_t old_frame = _match_depth(con->window, nc);
736
737 x_reparent_child(nc, con);
738
739 bool moved_workpaces = (con_get_workspace(nc) != con_get_workspace(con));
740
741 con_merge_into(con, nc);
742
743 /* Destroy the old frame if we had to reframe the container. This needs to be done
744 * after rendering in order to prevent the background from flickering in its place. */
745 if (old_frame != XCB_NONE) {
746 xcb_destroy_window(conn, old_frame);
747 }
748
750
751 if (moved_workpaces) {
752 /* If the window is associated with a startup sequence, delete it so
753 * child windows won't be created on the old workspace. */
755
757 }
758
759 nc->window->swallowed = true;
760 return nc;
761}
void run_assignments(i3Window *window)
Checks the list of assignments for the given window and runs all matching ones (unless they have alre...
Definition assignments.c:17
Assignment * assignment_for(i3Window *window, int type)
Returns the first matching assignment for the given window.
Definition assignments.c:74
int * bindings_get_buttons_to_grab(void)
Returns a list of buttons that should be grabbed on a window.
Definition bindings.c:1036
bool con_move_to_output_name(Con *con, const char *name, bool fix_coordinates)
Moves the given container to the currently focused container on the visible workspace on the output s...
Definition con.c:1607
void con_set_urgency(Con *con, bool urgent)
Set urgency flag to the container, all the parent containers and the workspace.
Definition con.c:2431
Con * con_for_window(Con *con, i3Window *window, Match **store_match)
Returns the first container below 'con' which wants to swallow this window TODO: priority.
Definition con.c:976
Con * con_get_workspace(Con *con)
Gets the workspace container this node is on.
Definition con.c:547
bool con_find_transient_for_window(Con *start, xcb_window_t target)
Start from a container and traverse the transient_for linked list.
Definition con.c:824
Con * con_descend_tiling_focused(Con *con)
Returns the focused con inside this client, descending the tree as far as possible.
Definition con.c:1714
void con_disable_fullscreen(Con *con)
Disables fullscreen mode for the given container, if necessary.
Definition con.c:1299
void con_set_border_style(Con *con, border_style_t border_style, int border_width)
Sets the given border style on con, correctly keeping the position/size of a floating window.
Definition con.c:1964
Con * con_by_window_id(xcb_window_t window)
Returns the container with the given client window ID or NULL if no such container exists.
Definition con.c:752
Con * con_get_fullscreen_covering_ws(Con *ws)
Returns the fullscreen node that covers the given workspace if it exists.
Definition con.c:647
bool con_accepts_window(Con *con)
Returns true if this node accepts a window (if the node swallows windows, it might already have swall...
Definition con.c:512
bool con_is_internal(Con *con)
Returns true if the container is internal, such as __i3_scratch.
Definition con.c:662
void con_move_to_output(Con *con, Output *output, bool fix_coordinates)
Moves the given container to the currently focused container on the visible workspace on the given ou...
Definition con.c:1592
void con_toggle_fullscreen(Con *con, int fullscreen_mode)
Toggles fullscreen mode for the given container.
Definition con.c:1192
void con_merge_into(Con *old, Con *new)
Merges container specific data that should move with the window (e.g.
Definition con.c:2717
void con_activate(Con *con)
Sets input focus to the given container and raises it to the top.
Definition con.c:292
int con_num_windows(Con *con)
Count the number of windows (i.e., leaf containers).
Definition con.c:1116
Con * con_get_output(Con *con)
Gets the output container (first container with CT_OUTPUT in hierarchy) this node is on.
Definition con.c:532
Config config
Definition config.c:19
Con * ewmh_get_workspace_by_index(uint32_t idx)
Returns the workspace container as enumerated by the EWMH desktop model.
Definition ewmh.c:355
void ewmh_update_wm_desktop(void)
Updates _NET_WM_DESKTOP for all windows.
Definition ewmh.c:186
bool floating_enable(Con *con, bool automatic)
Enables floating mode for the given container by detaching it from its parent, creating a new contain...
Definition floating.c:233
void restore_geometry(void)
Restores the geometry of each window by reparenting it to the root window at the position of its fram...
Definition manage.c:81
static void _remove_matches(Con *con)
Definition manage.c:31
static Con * placeholder_for_con(Con *con)
Definition manage.c:696
static xcb_window_t _match_depth(i3Window *win, Con *con)
Definition manage.c:17
void manage_existing_windows(xcb_window_t root)
Go through all existing windows (if the window manager is restarted) and manage them.
Definition manage.c:44
Con * remanage_window(Con *con)
Remanages a window: performs a swallow check and runs assignments.
Definition manage.c:720
void manage_window(xcb_window_t window, xcb_get_window_attributes_cookie_t cookie, bool needs_to_be_mapped)
Do some sanity checks and then reparent the window.
Definition manage.c:109
#define GET_PROPERTY(atom, len)
void match_free(Match *match)
Frees the given match.
Definition match.c:279
void output_push_sticky_windows(Con *old_focus)
Iterates over all outputs and pushes sticky windows to the currently visible workspace on that output...
Definition output.c:83
char * output_primary_name(Output *output)
Retrieves the primary name of an output.
Definition output.c:53
Output * get_output_with_dimensions(Rect rect)
Returns the active output which spans exactly the area specified by rect or NULL if there is no outpu...
Definition randr.c:158
Output * get_output_containing(unsigned int x, unsigned int y)
Returns the active (!) output which contains the coordinates x, y or NULL if there is no output which...
Definition randr.c:122
void render_con(Con *con)
"Renders" the given container (and its children), meaning that all rects are updated correctly.
Definition render.c:43
bool restore_kill_placeholder(xcb_window_t placeholder)
Kill the placeholder window, if placeholder refers to a placeholder window.
void startup_sequence_delete_by_window(i3Window *win)
Deletes the startup sequence for a window if it exists.
Definition startup.c:372
char * startup_workspace_for_window(i3Window *cwindow, xcb_get_property_reply_t *startup_id_reply)
Checks if the given window belongs to a startup notification by checking if the _NET_STARTUP_ID prope...
Definition startup.c:351
struct Con * focused
Definition tree.c:13
struct Con * croot
Definition tree.c:12
Con * tree_open_con(Con *con, i3Window *window)
Opens an empty container in the current container.
Definition tree.c:149
struct all_cons_head all_cons
Definition tree.c:15
void tree_render(void)
Renders the tree, that is rendering all outputs using render_con() and pushing the changes to X11 usi...
Definition tree.c:455
int ws_name_to_number(const char *name)
Parses the workspace name as a number.
Definition util.c:111
void window_update_icon(i3Window *win, xcb_get_property_reply_t *prop)
Updates the _NET_WM_ICON.
Definition window.c:520
void window_update_hints(i3Window *win, xcb_get_property_reply_t *prop, bool *urgency_hint)
Updates the WM_HINTS (we only care about the input focus handling part).
Definition window.c:378
void window_update_strut_partial(i3Window *win, xcb_get_property_reply_t *prop)
Updates the _NET_WM_STRUT_PARTIAL (reserved pixels at the screen edges)
Definition window.c:193
void window_update_role(i3Window *win, xcb_get_property_reply_t *prop)
Updates the WM_WINDOW_ROLE.
Definition window.c:218
void window_update_name_legacy(i3Window *win, xcb_get_property_reply_t *prop)
Updates the name by using WM_NAME (encoded in COMPOUND_TEXT).
Definition window.c:104
void window_free(i3Window *win)
Frees an i3Window and all its members.
Definition window.c:18
void window_update_transient_for(i3Window *win, xcb_get_property_reply_t *prop)
Updates the TRANSIENT_FOR (logical parent window).
Definition window.c:168
void window_update_machine(i3Window *win, xcb_get_property_reply_t *prop)
Updates the WM_CLIENT_MACHINE.
Definition window.c:506
void window_update_leader(i3Window *win, xcb_get_property_reply_t *prop)
Updates the CLIENT_LEADER (logical parent window).
Definition window.c:143
bool window_update_normal_hints(i3Window *win, xcb_get_property_reply_t *reply, xcb_get_geometry_reply_t *geom)
Updates the WM_NORMAL_HINTS.
Definition window.c:257
void window_update_name(i3Window *win, xcb_get_property_reply_t *prop)
Updates the name by using _NET_WM_NAME (encoded in UTF-8) for the given window.
Definition window.c:68
void window_update_class(i3Window *win, xcb_get_property_reply_t *prop)
Updates the WM_CLASS (consisting of the class and instance) for the given window.
Definition window.c:34
bool window_update_motif_hints(i3Window *win, xcb_get_property_reply_t *prop, border_style_t *motif_border_style)
Updates the MOTIF_WM_HINTS.
Definition window.c:464
bool workspace_is_visible(Con *ws)
Returns true if the workspace is currently visible.
Definition workspace.c:320
Con * workspace_get(const char *num)
Returns a pointer to the workspace with the given number (starting at 0), creating the workspace if n...
Definition workspace.c:131
Con * get_existing_workspace_by_num(int num)
Returns the workspace with the given number or NULL if such a workspace does not exist.
Definition workspace.c:44
void x_reparent_child(Con *con, Con *old)
Reparents the child window of the given container (necessary for sticky containers).
Definition x.c:219
void x_con_reframe(Con *con)
Definition x.c:296
void x_reinit(Con *con)
Re-initializes the associated X window state for this container.
Definition x.c:199
void x_set_name(Con *con, const char *name)
Sets the WM_NAME property (so, no UTF8, but used only for debugging anyways) of the given name.
Definition x.c:1497
bool window_supports_protocol(xcb_window_t window, xcb_atom_t atom)
Returns true if the client supports the given protocol atom (like WM_DELETE_WINDOW)
Definition x.c:305
xcb_atom_t xcb_get_preferred_window_type(xcb_get_property_reply_t *reply)
Returns the first supported _NET_WM_WINDOW_TYPE atom.
Definition xcb.c:123
void xcb_set_window_rect(xcb_connection_t *conn, xcb_window_t window, Rect r)
Configures the given window to have the size/position specified by given rect.
Definition xcb.c:107
bool xcb_reply_contains_atom(xcb_get_property_reply_t *prop, xcb_atom_t atom)
Returns true if the given reply contains the given data.
Definition xcb.c:155
void xcb_grab_buttons(xcb_connection_t *conn, xcb_window_t window, int *buttons)
Grab the specified buttons on a window when managing it.
Definition xcb.c:270
void ipc_send_window_event(const char *property, Con *con)
For the window events we send, along the usual "change" field, also the window container,...
Definition ipc.c:1650
xcb_connection_t * conn
XCB connection and root screen.
Definition main.c:54
xcb_window_t root
Definition main.c:67
bool shape_supported
Definition main.c:105
struct Rect Rect
Definition data.h:44
@ CF_OUTPUT
Definition data.h:630
border_style_t
Definition data.h:65
#define DLOG(fmt,...)
Definition libi3.h:105
#define LOG(fmt,...)
Definition libi3.h:95
void * scalloc(size_t num, size_t size)
Safe-wrapper around calloc which exits if malloc returns NULL (meaning that there is no more memory a...
int sasprintf(char **strp, const char *fmt,...)
Safe-wrapper around asprintf which exits if it returns -1 (meaning that there is no more memory avail...
uint16_t get_visual_depth(xcb_visualid_t visual_id)
Get depth of visual specified by visualid.
void * smalloc(size_t size)
Safe-wrapper around malloc which exits if malloc returns NULL (meaning that there is no more memory a...
#define TAILQ_FOREACH(var, head, field)
Definition queue.h:347
#define TAILQ_FIRST(head)
Definition queue.h:336
#define TAILQ_REMOVE(head, elm, field)
Definition queue.h:402
#define TAILQ_EMPTY(head)
Definition queue.h:344
#define TAILQ_INSERT_AFTER(head, listelm, elm, field)
Definition queue.h:384
#define FREE(pointer)
Definition util.h:47
#define NET_WM_DESKTOP_ALL
Definition workspace.h:25
#define NET_WM_DESKTOP_NONE
Definition workspace.h:24
#define CHILD_EVENT_MASK
The XCB_CW_EVENT_MASK for the child (= real window)
Definition xcb.h:28
enum Config::@6 popup_during_fullscreen
What should happen when a new popup is opened during fullscreen mode.
int default_border_width
int default_floating_border_width
Stores a rectangle, for example the size of a window, the child window etc.
Definition data.h:185
uint32_t height
Definition data.h:189
uint32_t x
Definition data.h:186
uint32_t y
Definition data.h:187
uint32_t width
Definition data.h:188
uint32_t top
Definition data.h:200
uint32_t bottom
Definition data.h:201
An Output is a physical output on your graphics driver.
Definition data.h:391
Con * con
Pointer to the Con which represents this output.
Definition data.h:411
A 'Window' is a type which contains an xcb_window_t and all the related information (hints like _NET_...
Definition data.h:424
time_t managed_since
Definition data.h:515
int max_height
Definition data.h:499
int max_width
Definition data.h:498
xcb_window_t id
Definition data.h:425
int min_height
Definition data.h:495
enum Window::@11 dock
Whether the window says it is a dock window.
xcb_atom_t window_type
The _NET_WM_WINDOW_TYPE for this window.
Definition data.h:465
bool doesnt_accept_focus
Whether this window accepts focus.
Definition data.h:462
bool shaped
The window has a nonrectangular shape.
Definition data.h:509
bool needs_take_focus
Whether the application needs to receive WM_TAKE_FOCUS.
Definition data.h:458
xcb_window_t transient_for
Definition data.h:430
uint32_t wm_desktop
The _NET_WM_DESKTOP for this window.
Definition data.h:468
struct reservedpx reserved
Pixels the window reserves.
Definition data.h:479
xcb_window_t leader
Holds the xcb_window_t (just an ID) for the leader window (logical parent for toolwindows and similar...
Definition data.h:429
uint16_t depth
Depth of the window.
Definition data.h:482
int min_width
Definition data.h:494
bool swallowed
Definition data.h:518
A "match" is a data structure which acts like a mask or expression to match certain windows or not.
Definition data.h:529
bool restart_mode
Definition data.h:583
enum Match::@15 insert_where
An Assignment makes specific windows go to a specific workspace/output or run a command for that wind...
Definition data.h:594
union Assignment::@17 dest
destination workspace/command/output, depending on the type
char * output
Definition data.h:622
char * workspace
Definition data.h:621
enum Assignment::@16 type
type of this assignment:
A 'Con' represents everything from the X11 root window down to a single X11 window.
Definition data.h:643
struct Con * parent
Definition data.h:678
enum Con::@18 type
int border_width
Definition data.h:715
struct Rect rect
Definition data.h:682
int current_border_width
Definition data.h:716
bool sticky
Definition data.h:739
bool mapped
Definition data.h:644
struct Rect window_rect
Definition data.h:685
struct Window * window
Definition data.h:718
surface_t frame
Definition data.h:658
char * name
Definition data.h:692
struct Rect geometry
the geometry this window requested when getting mapped
Definition data.h:690
uint16_t depth
Definition data.h:804
enum Con::@19 floating
floating? (= not in tiling layout) This cannot be simply a bool because we want to keep track of whet...
xcb_drawable_t id
Definition libi3.h:571