window.c

   1 /* Copyright (c) 2012, Bastien Dejean
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are met:
   6  *
   7  * 1. Redistributions of source code must retain the above copyright notice, this
   8  *    list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright notice,
  10  *    this list of conditions and the following disclaimer in the documentation
  11  *    and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  16  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
  17  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  18  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  19  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  20  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  22  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  23  */
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <stdbool.h>
  28 #include <string.h>
  29 #include "bspwm.h"
  30 #include "ewmh.h"
  31 #include "monitor.h"
  32 #include "query.h"
  33 #include "rule.h"
  34 #include "settings.h"
  35 #include "geometry.h"
  36 #include "stack.h"
  37 #include "tree.h"
  38 #include "parse.h"
  39 #include "window.h"
  40
  41 void schedule_window(xcb_window_t win)
  42 {
  43         coordinates_t loc;
  44         uint8_t override_redirect = 0;
  45         xcb_get_window_attributes_reply_t *wa = xcb_get_window_attributes_reply(dpy, xcb_get_window_attributes(dpy, win), NULL);
  46
  47         if (wa != NULL) {
  48                 override_redirect = wa->override_redirect;
  49                 free(wa);
  50         }
  51
  52         if (override_redirect || locate_window(win, &loc)) {
  53                 return;
  54         }
  55
  56         /* ignore pending windows */
  57         for (pending_rule_t *pr = pending_rule_head; pr != NULL; pr = pr->next) {
  58                 if (pr->win == win) {
  59                         return;
  60                 }
  61         }
  62
  63         rule_consequence_t *csq = make_rule_conquence();
  64         apply_rules(win, csq);
  65         if (!schedule_rules(win, csq)) {
  66                 manage_window(win, csq, -1);
  67                 free(csq);
  68         }
  69 }
  70
  71 void manage_window(xcb_window_t win, rule_consequence_t *csq, int fd)
  72 {
  73         monitor_t *m = mon;
  74         desktop_t *d = mon->desk;
  75         node_t *f = mon->desk->focus;
  76
  77         parse_rule_consequence(fd, csq);
  78
  79         if (!csq->manage) {
  80                 free(csq->layer);
  81                 free(csq->state);
  82                 window_show(win);
  83                 return;
  84         }
  85
  86         if (csq->node_desc[0] != '\0') {
  87                 coordinates_t ref = {m, d, f};
  88                 coordinates_t trg = {NULL, NULL, NULL};
  89                 if (node_from_desc(csq->node_desc, &ref, &trg) == SELECTOR_OK) {
  90                         m = trg.monitor;
  91                         d = trg.desktop;
  92                         f = trg.node;
  93                 }
  94         } else if (csq->desktop_desc[0] != '\0') {
  95                 coordinates_t ref = {m, d, NULL};
  96                 coordinates_t trg = {NULL, NULL, NULL};
  97                 if (desktop_from_desc(csq->desktop_desc, &ref, &trg) == SELECTOR_OK) {
  98                         m = trg.monitor;
  99                         d = trg.desktop;
 100                         f = trg.desktop->focus;
 101                 }
 102         } else if (csq->monitor_desc[0] != '\0') {
 103                 coordinates_t ref = {m, NULL, NULL};
 104                 coordinates_t trg = {NULL, NULL, NULL};
 105                 if (monitor_from_desc(csq->monitor_desc, &ref, &trg) == SELECTOR_OK) {
 106                         m = trg.monitor;
 107                         d = trg.monitor->desk;
 108                         f = trg.monitor->desk->focus;
 109                 }
 110         }
 111
 112         if (csq->sticky) {
 113                 m = mon;
 114                 d = mon->desk;
 115                 f = mon->desk->focus;
 116         }
 117
 118         if (csq->split_dir[0] != '\0' && f != NULL) {
 119                 direction_t dir;
 120                 if (parse_direction(csq->split_dir, &dir)) {
 121                         presel_dir(m, d, f, dir);
 122                 }
 123         }
 124
 125         if (csq->split_ratio != 0 && f != NULL) {
 126                 presel_ratio(m, d, f, csq->split_ratio);
 127         }
 128
 129         node_t *n = make_node(win);
 130         client_t *c = make_client();
 131         c->border_width = csq->border ? d->border_width : 0;
 132         n->client = c;
 133         initialize_client(n);
 134         update_floating_rectangle(n);
 135
 136         if (c->floating_rectangle.x == 0 && c->floating_rectangle.y == 0) {
 137                 csq->center = true;
 138         }
 139
 140         c->min_width = csq->min_width;
 141         c->max_width = csq->max_width;
 142         c->min_height = csq->min_height;
 143         c->max_height = csq->max_height;
 144
 145         monitor_t *mm = monitor_from_client(c);
 146         embrace_client(mm, c);
 147         adapt_geometry(&mm->rectangle, &m->rectangle, n);
 148
 149         if (csq->center) {
 150                 window_center(m, c);
 151         }
 152
 153         snprintf(c->class_name, sizeof(c->class_name), "%s", csq->class_name);
 154         snprintf(c->instance_name, sizeof(c->instance_name), "%s", csq->instance_name);
 155
 156         f = insert_node(m, d, n, f);
 157         clients_count++;
 158
 159         put_status(SBSC_MASK_NODE_MANAGE, "node_manage 0x%X 0x%X 0x%X 0x%X\n", m->id, d->id, win, f!=NULL?f->id:0);
 160
 161         if (f != NULL && f->client != NULL && csq->state != NULL && *(csq->state) == STATE_FLOATING) {
 162                 c->last_layer = c->layer = f->client->layer;
 163         }
 164
 165         if (csq->layer != NULL) {
 166                 c->last_layer = c->layer = *(csq->layer);
 167         }
 168
 169         if (csq->state != NULL) {
 170                 set_state(m, d, n, *(csq->state));
 171                 c->last_state = c->state;
 172         }
 173
 174         set_locked(m, d, n, csq->locked);
 175         set_sticky(m, d, n, csq->sticky);
 176         set_private(m, d, n, csq->private);
 177
 178         arrange(m, d);
 179
 180         bool give_focus = (csq->focus && (d == mon->desk || csq->follow));
 181
 182         if (give_focus) {
 183                 focus_node(m, d, n);
 184         } else if (csq->focus) {
 185                 activate_node(m, d, n);
 186         } else {
 187                 stack(d, n, false);
 188         }
 189
 190         uint32_t values[] = {CLIENT_EVENT_MASK | (focus_follows_pointer ? XCB_EVENT_MASK_ENTER_WINDOW : 0)};
 191         xcb_change_window_attributes(dpy, win, XCB_CW_EVENT_MASK, values);
 192
 193         if (d == m->desk) {
 194                 show_node(n);
 195         } else {
 196                 hide_node(n);
 197         }
 198
 199         /* the same function is already called in `focus_node` but has no effects on unmapped windows */
 200         if (give_focus) {
 201                 xcb_set_input_focus(dpy, XCB_INPUT_FOCUS_POINTER_ROOT, win, XCB_CURRENT_TIME);
 202         }
 203
 204         ewmh_set_wm_desktop(n, d);
 205         ewmh_update_client_list(false);
 206         free(csq->layer);
 207         free(csq->state);
 208 }
 209
 210 void unmanage_window(xcb_window_t win)
 211 {
 212         coordinates_t loc;
 213         if (locate_window(win, &loc)) {
 214                 put_status(SBSC_MASK_NODE_UNMANAGE, "node_unmanage 0x%X 0x%X 0x%X\n", loc.monitor->id, loc.desktop->id, win);
 215                 remove_node(loc.monitor, loc.desktop, loc.node);
 216                 if (frozen_pointer->window == win) {
 217                         frozen_pointer->action = ACTION_NONE;
 218                 }
 219                 arrange(loc.monitor, loc.desktop);
 220         } else {
 221                 for (pending_rule_t *pr = pending_rule_head; pr != NULL; pr = pr->next) {
 222                         if (pr->win == win) {
 223                                 remove_pending_rule(pr);
 224                                 return;
 225                         }
 226                 }
 227         }
 228 }
 229
 230 bool is_presel_window(xcb_window_t win)
 231 {
 232         xcb_icccm_get_wm_class_reply_t reply;
 233         bool ret = false;
 234         if (xcb_icccm_get_wm_class_reply(dpy, xcb_icccm_get_wm_class(dpy, win), &reply, NULL) == 1) {
 235                 if (streq(BSPWM_CLASS_NAME, reply.class_name) && streq(PRESEL_FEEDBACK_I, reply.instance_name)) {
 236                         ret = true;
 237                 }
 238                 xcb_icccm_get_wm_class_reply_wipe(&reply);
 239         }
 240         return ret;
 241 }
 242
 243 void initialize_presel_feedback(node_t *n)
 244 {
 245         if (n == NULL || n->presel == NULL || n->presel->feedback != XCB_NONE) {
 246                 return;
 247         }
 248
 249         xcb_window_t win = xcb_generate_id(dpy);
 250         uint32_t mask = XCB_CW_BACK_PIXEL | XCB_CW_SAVE_UNDER;
 251         uint32_t values[] = {get_color_pixel(presel_feedback_color), 1};
 252         xcb_create_window(dpy, XCB_COPY_FROM_PARENT, win, root, 0, 0, 1, 1, 0, XCB_WINDOW_CLASS_INPUT_OUTPUT,
 253                                   XCB_COPY_FROM_PARENT, mask, values);
 254
 255         xcb_icccm_set_wm_class(dpy, win, sizeof(PRESEL_FEEDBACK_IC), PRESEL_FEEDBACK_IC);
 256         stacking_list_t *s = stack_tail;
 257         while (s != NULL && !IS_TILED(s->node->client)) {
 258                 s = s->prev;
 259         }
 260         if (s != NULL) {
 261                 window_above(win, s->node->id);
 262         }
 263         n->presel->feedback = win;
 264 }
 265
 266 void draw_presel_feedback(monitor_t *m, desktop_t *d, node_t *n)
 267 {
 268         if (n == NULL || n->presel == NULL) {
 269                 return;
 270         }
 271
 272         bool exists = (n->presel->feedback != XCB_NONE);
 273         if (!exists) {
 274                 initialize_presel_feedback(n);
 275         }
 276
 277         int gap = gapless_monocle && (d->layout == LAYOUT_MONOCLE || (single_monocle && tiled_count(d->root) == 1))
 278                 ? 0
 279                 : d->window_gap;
 280
 281         presel_t *p = n->presel;
 282         xcb_rectangle_t rect = n->rectangle;
 283         rect.x = rect.y = 0;
 284         rect.width -= gap;
 285         rect.height -= gap;
 286         xcb_rectangle_t presel_rect = rect;
 287
 288         switch (p->split_dir) {
 289                 case DIR_NORTH:
 290                         presel_rect.height = p->split_ratio * rect.height;
 291                         break;
 292                 case DIR_EAST:
 293                         presel_rect.width = (1 - p->split_ratio) * rect.width;
 294                         presel_rect.x = rect.width - presel_rect.width;
 295                         break;
 296                 case DIR_SOUTH:
 297                         presel_rect.height = (1 - p->split_ratio) * rect.height;
 298                         presel_rect.y = rect.height - presel_rect.height;
 299                         break;
 300                 case DIR_WEST:
 301                         presel_rect.width = p->split_ratio * rect.width;
 302                         break;
 303         }
 304
 305         window_move_resize(p->feedback, n->rectangle.x + presel_rect.x, n->rectangle.y + presel_rect.y,
 306                            presel_rect.width, presel_rect.height);
 307
 308         if (!exists && m->desk == d) {
 309                 window_show(p->feedback);
 310         }
 311 }
 312
 313 void refresh_presel_feebacks_in(node_t *n, desktop_t *d, monitor_t *m)
 314 {
 315         if (n == NULL) {
 316                 return;
 317         } else {
 318                 if (n->presel != NULL) {
 319                         draw_presel_feedback(m, d, n);
 320                 }
 321                 refresh_presel_feebacks_in(n->first_child, d, m);
 322                 refresh_presel_feebacks_in(n->second_child, d, m);
 323         }
 324 }
 325
 326 void update_colors(void)
 327 {
 328         for (monitor_t *m = mon_head; m != NULL; m = m->next) {
 329                 for (desktop_t *d = m->desk_head; d != NULL; d = d->next) {
 330                         update_colors_in(d->root, d, m);
 331                 }
 332         }
 333 }
 334
 335 void update_colors_in(node_t *n, desktop_t *d, monitor_t *m)
 336 {
 337         if (n == NULL) {
 338                 return;
 339         } else {
 340                 if (n->presel != NULL) {
 341                         uint32_t pxl = get_color_pixel(presel_feedback_color);
 342                         xcb_change_window_attributes(dpy, n->presel->feedback, XCB_CW_BACK_PIXEL, &pxl);
 343                         if (d == m->desk) {
 344                                 /* hack to induce back pixel refresh */
 345                                 window_hide(n->presel->feedback);
 346                                 window_show(n->presel->feedback);
 347                         }
 348                 }
 349                 if (n == d->focus) {
 350                         draw_border(n, true, (m == mon));
 351                 } else if (n->client != NULL) {
 352                         draw_border(n, false, (m == mon));
 353                 } else {
 354                         update_colors_in(n->first_child, d, m);
 355                         update_colors_in(n->second_child, d, m);
 356                 }
 357         }
 358 }
 359
 360 void draw_border(node_t *n, bool focused_node, bool focused_monitor)
 361 {
 362         if (n == NULL) {
 363                 return;
 364         }
 365
 366         uint32_t border_color_pxl = get_border_color(focused_node, focused_monitor);
 367         for (node_t *f = first_extrema(n); f != NULL; f = next_leaf(f, n)) {
 368                 if (f->client->border_width > 0) {
 369                         window_draw_border(f->id, border_color_pxl);
 370                 }
 371         }
 372 }
 373
 374 void window_draw_border(xcb_window_t win, uint32_t border_color_pxl)
 375 {
 376         xcb_change_window_attributes(dpy, win, XCB_CW_BORDER_PIXEL, &border_color_pxl);
 377 }
 378
 379 pointer_state_t *make_pointer_state(void)
 380 {
 381         pointer_state_t *p = malloc(sizeof(pointer_state_t));
 382         p->monitor = NULL;
 383         p->desktop = NULL;
 384         p->node = p->vertical_fence = p->horizontal_fence = NULL;
 385         p->client = NULL;
 386         p->window = XCB_NONE;
 387         p->action = ACTION_NONE;
 388         return p;
 389 }
 390
 391 void adopt_orphans(void)
 392 {
 393         xcb_query_tree_reply_t *qtr = xcb_query_tree_reply(dpy, xcb_query_tree(dpy, root), NULL);
 394         if (qtr == NULL) {
 395                 return;
 396         }
 397
 398         int len = xcb_query_tree_children_length(qtr);
 399         xcb_window_t *wins = xcb_query_tree_children(qtr);
 400
 401         for (int i = 0; i < len; i++) {
 402                 uint32_t idx;
 403                 xcb_window_t win = wins[i];
 404                 if (xcb_ewmh_get_wm_desktop_reply(ewmh, xcb_ewmh_get_wm_desktop(ewmh, win), &idx, NULL) == 1) {
 405                         schedule_window(win);
 406                 }
 407         }
 408
 409         free(qtr);
 410 }
 411
 412 void window_close(node_t *n)
 413 {
 414         if (n == NULL) {
 415                 return;
 416         } else if (n->client != NULL) {
 417                 send_client_message(n->id, ewmh->WM_PROTOCOLS, WM_DELETE_WINDOW);
 418         } else {
 419                 window_close(n->first_child);
 420                 window_close(n->second_child);
 421         }
 422 }
 423
 424 void window_kill(monitor_t *m, desktop_t *d, node_t *n)
 425 {
 426         if (n == NULL) {
 427                 return;
 428         }
 429
 430         for (node_t *f = first_extrema(n); f != NULL; f = next_leaf(f, n)) {
 431                 xcb_kill_client(dpy, f->id);
 432         }
 433
 434         remove_node(m, d, n);
 435 }
 436
 437 uint32_t get_border_color(bool focused_node, bool focused_monitor)
 438 {
 439         if (focused_monitor && focused_node) {
 440                 return get_color_pixel(focused_border_color);
 441         } else if (focused_node) {
 442                 return get_color_pixel(active_border_color);
 443         } else {
 444                 return get_color_pixel(normal_border_color);
 445         }
 446 }
 447
 448 void update_floating_rectangle(node_t *n)
 449 {
 450         client_t *c = n->client;
 451
 452         xcb_get_geometry_reply_t *geo = xcb_get_geometry_reply(dpy, xcb_get_geometry(dpy, n->id), NULL);
 453
 454         if (geo != NULL) {
 455                 c->floating_rectangle = (xcb_rectangle_t) {geo->x, geo->y, geo->width, geo->height};
 456         }
 457
 458         free(geo);
 459 }
 460
 461 void restrain_floating_width(client_t *c, int *width)
 462 {
 463         if (*width < 1) {
 464                 *width = 1;
 465         }
 466         if (c->min_width > 0 && *width < c->min_width) {
 467                 *width = c->min_width;
 468         } else if (c->max_width > 0 && *width > c->max_width) {
 469                 *width = c->max_width;
 470         }
 471 }
 472
 473 void restrain_floating_height(client_t *c, int *height)
 474 {
 475         if (*height < 1) {
 476                 *height = 1;
 477         }
 478         if (c->min_height > 0 && *height < c->min_height) {
 479                 *height = c->min_height;
 480         } else if (c->max_height > 0 && *height > c->max_height) {
 481                 *height = c->max_height;
 482         }
 483 }
 484
 485 void restrain_floating_size(client_t *c, int *width, int *height)
 486 {
 487         restrain_floating_width(c, width);
 488         restrain_floating_height(c, height);
 489 }
 490
 491 void query_pointer(xcb_window_t *win, xcb_point_t *pt)
 492 {
 493         window_lower(motion_recorder);
 494
 495         xcb_query_pointer_reply_t *qpr = xcb_query_pointer_reply(dpy, xcb_query_pointer(dpy, root), NULL);
 496
 497         if (qpr != NULL) {
 498                 if (win != NULL) {
 499                         *win = qpr->child;
 500                         xcb_point_t pt = {qpr->root_x, qpr->root_y};
 501                         for (stacking_list_t *s = stack_tail; s != NULL; s = s->prev) {
 502                                 if (!s->node->client->visible) {
 503                                         continue;
 504                                 }
 505                                 xcb_rectangle_t rect = get_rectangle(NULL, s->node);
 506                                 if (is_inside(pt, rect)) {
 507                                         if (s->node->id == qpr->child || is_presel_window(qpr->child)) {
 508                                                 *win = s->node->id;
 509                                         }
 510                                         break;
 511                                 }
 512                         }
 513                 }
 514                 if (pt != NULL) {
 515                         *pt = (xcb_point_t) {qpr->root_x, qpr->root_y};
 516                 }
 517         }
 518
 519         free(qpr);
 520
 521         window_raise(motion_recorder);
 522 }
 523
 524 void window_border_width(xcb_window_t win, uint32_t bw)
 525 {
 526         uint32_t values[] = {bw};
 527         xcb_configure_window(dpy, win, XCB_CONFIG_WINDOW_BORDER_WIDTH, values);
 528 }
 529
 530 void window_move(xcb_window_t win, int16_t x, int16_t y)
 531 {
 532         uint32_t values[] = {x, y};
 533         xcb_configure_window(dpy, win, XCB_CONFIG_WINDOW_X_Y, values);
 534 }
 535
 536 void window_resize(xcb_window_t win, uint16_t w, uint16_t h)
 537 {
 538         uint32_t values[] = {w, h};
 539         xcb_configure_window(dpy, win, XCB_CONFIG_WINDOW_WIDTH_HEIGHT, values);
 540 }
 541
 542 void window_move_resize(xcb_window_t win, int16_t x, int16_t y, uint16_t w, uint16_t h)
 543 {
 544         uint32_t values[] = {x, y, w, h};
 545         xcb_configure_window(dpy, win, XCB_CONFIG_WINDOW_X_Y_WIDTH_HEIGHT, values);
 546 }
 547
 548 void window_raise(xcb_window_t win)
 549 {
 550         uint32_t values[] = {XCB_STACK_MODE_ABOVE};
 551         xcb_configure_window(dpy, win, XCB_CONFIG_WINDOW_STACK_MODE, values);
 552 }
 553
 554 void window_center(monitor_t *m, client_t *c)
 555 {
 556         xcb_rectangle_t *r = &c->floating_rectangle;
 557         xcb_rectangle_t a = m->rectangle;
 558         if (r->width >= a.width) {
 559                 r->x = a.x;
 560         } else {
 561                 r->x = a.x + (a.width - r->width) / 2;
 562         }
 563         if (r->height >= a.height) {
 564                 r->y = a.y;
 565         } else {
 566                 r->y = a.y + (a.height - r->height) / 2;
 567         }
 568         r->x -= c->border_width;
 569         r->y -= c->border_width;
 570 }
 571
 572 void window_stack(xcb_window_t w1, xcb_window_t w2, uint32_t mode)
 573 {
 574         if (w2 == XCB_NONE) {
 575                 return;
 576         }
 577         uint16_t mask = XCB_CONFIG_WINDOW_SIBLING | XCB_CONFIG_WINDOW_STACK_MODE;
 578         uint32_t values[] = {w2, mode};
 579         xcb_configure_window(dpy, w1, mask, values);
 580 }
 581
 582 void window_above(xcb_window_t w1, xcb_window_t w2)
 583 {
 584         window_stack(w1, w2, XCB_STACK_MODE_ABOVE);
 585 }
 586
 587 void window_below(xcb_window_t w1, xcb_window_t w2)
 588 {
 589         window_stack(w1, w2, XCB_STACK_MODE_BELOW);
 590 }
 591
 592 void window_lower(xcb_window_t win)
 593 {
 594         uint32_t values[] = {XCB_STACK_MODE_BELOW};
 595         xcb_configure_window(dpy, win, XCB_CONFIG_WINDOW_STACK_MODE, values);
 596 }
 597
 598 void window_set_visibility(xcb_window_t win, bool visible)
 599 {
 600         uint32_t values_off[] = {ROOT_EVENT_MASK & ~XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY};
 601         uint32_t values_on[] = {ROOT_EVENT_MASK};
 602         xcb_change_window_attributes(dpy, root, XCB_CW_EVENT_MASK, values_off);
 603         if (visible) {
 604                 xcb_map_window(dpy, win);
 605         } else {
 606                 xcb_unmap_window(dpy, win);
 607         }
 608         xcb_change_window_attributes(dpy, root, XCB_CW_EVENT_MASK, values_on);
 609 }
 610
 611 void window_hide(xcb_window_t win)
 612 {
 613         window_set_visibility(win, false);
 614 }
 615
 616 void window_show(xcb_window_t win)
 617 {
 618         window_set_visibility(win, true);
 619 }
 620
 621 void enable_motion_recorder(void)
 622 {
 623         window_raise(motion_recorder);
 624         window_show(motion_recorder);
 625 }
 626
 627 void disable_motion_recorder(void)
 628 {
 629         window_hide(motion_recorder);
 630 }
 631
 632 void update_motion_recorder(void)
 633 {
 634         xcb_get_geometry_reply_t *geo = xcb_get_geometry_reply(dpy, xcb_get_geometry(dpy, root), NULL);
 635
 636         if (geo != NULL) {
 637                 window_resize(motion_recorder, geo->width, geo->height);
 638         }
 639
 640         free(geo);
 641 }
 642
 643 void update_input_focus(void)
 644 {
 645         set_input_focus(mon->desk->focus);
 646 }
 647
 648 void set_input_focus(node_t *n)
 649 {
 650         if (n == NULL || n->client == NULL) {
 651                 clear_input_focus();
 652         } else {
 653                 if (n->client->icccm_input) {
 654                         xcb_set_input_focus(dpy, XCB_INPUT_FOCUS_PARENT, n->id, XCB_CURRENT_TIME);
 655                 } else if (n->client->icccm_focus) {
 656                         send_client_message(n->id, ewmh->WM_PROTOCOLS, WM_TAKE_FOCUS);
 657                 }
 658         }
 659 }
 660
 661 void clear_input_focus(void)
 662 {
 663         xcb_set_input_focus(dpy, XCB_INPUT_FOCUS_POINTER_ROOT, root, XCB_CURRENT_TIME);
 664 }
 665
 666 void center_pointer(xcb_rectangle_t r)
 667 {
 668         int16_t cx = r.x + r.width / 2;
 669         int16_t cy = r.y + r.height / 2;
 670         window_lower(motion_recorder);
 671         xcb_warp_pointer(dpy, XCB_NONE, root, 0, 0, 0, 0, cx, cy);
 672         window_raise(motion_recorder);
 673 }
 674
 675 void get_atom(char *name, xcb_atom_t *atom)
 676 {
 677         xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(dpy, xcb_intern_atom(dpy, 0, strlen(name), name), NULL);
 678         if (reply != NULL) {
 679                 *atom = reply->atom;
 680         } else {
 681                 *atom = XCB_NONE;
 682         }
 683         free(reply);
 684 }
 685
 686 void set_atom(xcb_window_t win, xcb_atom_t atom, uint32_t value)
 687 {
 688         xcb_change_property(dpy, XCB_PROP_MODE_REPLACE, win, atom, XCB_ATOM_CARDINAL, 32, 1, &value);
 689 }
 690
 691 bool has_proto(xcb_atom_t atom, xcb_icccm_get_wm_protocols_reply_t *protocols)
 692 {
 693         for (uint32_t i = 0; i < protocols->atoms_len; i++) {
 694                 if (protocols->atoms[i] == atom) {
 695                         return true;
 696                 }
 697         }
 698         return false;
 699 }
 700
 701 void send_client_message(xcb_window_t win, xcb_atom_t property, xcb_atom_t value)
 702 {
 703         xcb_client_message_event_t e;
 704
 705         e.response_type = XCB_CLIENT_MESSAGE;
 706         e.window = win;
 707         e.format = 32;
 708         e.sequence = 0;
 709         e.type = property;
 710         e.data.data32[0] = value;
 711         e.data.data32[1] = XCB_CURRENT_TIME;
 712
 713         xcb_send_event(dpy, false, win, XCB_EVENT_MASK_NO_EVENT, (char *) &e);
 714 }