git.sur5r.net Git - i3/i3/blob - src/floating.c

   1 /*
   2  * vim:ts=4:sw=4:expandtab
   3  *
   4  * i3 - an improved dynamic tiling window manager
   5  *
   6  * © 2009-2010 Michael Stapelberg and contributors
   7  *
   8  * See file LICENSE for license information.
   9  *
  10  * src/floating.c: contains all functions for handling floating clients
  11  *
  12  */
  13
  14
  15 #include "all.h"
  16
  17 extern xcb_connection_t *conn;
  18
  19 void floating_enable(Con *con, bool automatic) {
  20     if (con_is_floating(con)) {
  21         LOG("Container is already in floating mode, not doing anything.\n");
  22         return;
  23     }
  24
  25     /* 1: detach the container from its parent */
  26     /* TODO: refactor this with tree_close() */
  27     TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
  28     TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
  29
  30     con_fix_percent(con->parent, WINDOW_REMOVE);
  31
  32     /* 2: create a new container to render the decoration on, add
  33      * it as a floating window to the workspace */
  34     Con *nc = con_new(NULL);
  35     nc->parent = con_get_workspace(con);
  36     nc->rect = con->rect;
  37     /* add pixels for the decoration */
  38     /* TODO: don’t add them when the user automatically puts new windows into
  39      * 1pixel/borderless mode */
  40     nc->rect.height += 17 + 2;
  41     nc->rect.width += 4;
  42     nc->orientation = NO_ORIENTATION;
  43     nc->type = CT_FLOATING_CON;
  44     TAILQ_INSERT_TAIL(&(nc->parent->floating_head), nc, floating_windows);
  45     TAILQ_INSERT_TAIL(&(nc->parent->focus_head), nc, focused);
  46
  47     /* 3: attach the child to the new parent container */
  48     con->old_parent = con->parent;
  49     con->parent = nc;
  50     con->floating = FLOATING_USER_ON;
  51
  52     /* Some clients (like GIMP’s color picker window) get mapped
  53      * to (0, 0), so we push them to a reasonable position
  54      * (centered over their leader) */
  55     if (nc->rect.x == 0 && nc->rect.y == 0) {
  56         Con *leader;
  57         if (con->window && con->window->leader != XCB_NONE &&
  58             (leader = con_by_window_id(con->window->leader)) != NULL) {
  59             DLOG("Centering above leader\n");
  60             nc->rect.x = leader->rect.x + (leader->rect.width / 2) - (nc->rect.width / 2);
  61             nc->rect.y = leader->rect.y + (leader->rect.height / 2) - (nc->rect.height / 2);
  62         } else {
  63             /* center the window on workspace as fallback */
  64             Con *ws = nc->parent;
  65             nc->rect.x = ws->rect.x + (ws->rect.width / 2) - (nc->rect.width / 2);
  66             nc->rect.y = ws->rect.y + (ws->rect.height / 2) - (nc->rect.height / 2);
  67         }
  68     }
  69
  70     TAILQ_INSERT_TAIL(&(nc->nodes_head), con, nodes);
  71     TAILQ_INSERT_TAIL(&(nc->focus_head), con, focused);
  72 }
  73
  74 void floating_disable(Con *con, bool automatic) {
  75     if (!con_is_floating(con)) {
  76         LOG("Container isn't floating, not doing anything.\n");
  77         return;
  78     }
  79
  80     assert(con->old_parent != NULL);
  81
  82     /* 1: detach from parent container */
  83     TAILQ_REMOVE(&(con->parent->nodes_head), con, nodes);
  84     TAILQ_REMOVE(&(con->parent->focus_head), con, focused);
  85
  86     /* 2: kill parent container */
  87     TAILQ_REMOVE(&(con->parent->parent->floating_head), con->parent, floating_windows);
  88     TAILQ_REMOVE(&(con->parent->parent->focus_head), con->parent, focused);
  89     tree_close(con->parent, false);
  90
  91     /* 3: re-attach to previous parent */
  92     con->parent = con->old_parent;
  93     TAILQ_INSERT_TAIL(&(con->parent->nodes_head), con, nodes);
  94     TAILQ_INSERT_TAIL(&(con->parent->focus_head), con, focused);
  95
  96     con->floating = FLOATING_USER_OFF;
  97
  98     con_fix_percent(con->parent, WINDOW_ADD);
  99 }
 100
 101
 102 /*
 103  * Toggles floating mode for the given container.
 104  *
 105  * If the automatic flag is set to true, this was an automatic update by a change of the
 106  * window class from the application which can be overwritten by the user.
 107  *
 108  */
 109 void toggle_floating_mode(Con *con, bool automatic) {
 110         //i3Font *font = load_font(conn, config.font);
 111
 112         /* see if the client is already floating */
 113         if (con_is_floating(con)) {
 114                 LOG("already floating, re-setting to tiling\n");
 115
 116                 floating_disable(con, automatic);
 117                 return;
 118         }
 119
 120         floating_enable(con, automatic);
 121
 122
 123 #if 0
 124         if (client->dock) {
 125                 DLOG("Not putting dock client into floating mode\n");
 126                 return;
 127         }
 128
 129         if (con == NULL) {
 130                 DLOG("This client is already in floating (container == NULL), re-inserting\n");
 131                 Client *next_tiling;
 132                 Workspace *ws = client->workspace;
 133                 SLIST_FOREACH(next_tiling, &(ws->focus_stack), focus_clients)
 134                         if (!client_is_floating(next_tiling))
 135                                 break;
 136                 /* If there are no tiling clients on this workspace, there can only be one
 137                  * container: the first one */
 138                 if (next_tiling == TAILQ_END(&(ws->focus_stack)))
 139                         con = ws->table[0][0];
 140                 else con = next_tiling->container;
 141
 142                 /* Remove the client from the list of floating clients */
 143                 TAILQ_REMOVE(&(ws->floating_clients), client, floating_clients);
 144
 145                 DLOG("destination container = %p\n", con);
 146                 Client *old_focused = con->currently_focused;
 147                 /* Preserve position/size */
 148                 memcpy(&(client->floating_rect), &(client->rect), sizeof(Rect));
 149
 150                 client->floating = FLOATING_USER_OFF;
 151                 client->container = con;
 152
 153                 if (old_focused != NULL && !old_focused->dock)
 154                         CIRCLEQ_INSERT_AFTER(&(con->clients), old_focused, client, clients);
 155                 else CIRCLEQ_INSERT_TAIL(&(con->clients), client, clients);
 156
 157                 DLOG("Re-inserted the window.\n");
 158                 con->currently_focused = client;
 159
 160                 client_set_below_floating(conn, client);
 161
 162                 render_container(conn, con);
 163                 xcb_flush(conn);
 164
 165                 return;
 166         }
 167
 168         DLOG("Entering floating for client %08x\n", client->child);
 169
 170         /* Remove the client of its container */
 171         client_remove_from_container(conn, client, con, false);
 172         client->container = NULL;
 173
 174         /* Add the client to the list of floating clients for its workspace */
 175         TAILQ_INSERT_TAIL(&(client->workspace->floating_clients), client, floating_clients);
 176
 177         if (con->currently_focused == client) {
 178                 DLOG("Need to re-adjust currently_focused\n");
 179                 /* Get the next client in the focus stack for this particular container */
 180                 con->currently_focused = get_last_focused_client(conn, con, NULL);
 181         }
 182
 183         if (automatic)
 184                 client->floating = FLOATING_AUTO_ON;
 185         else client->floating = FLOATING_USER_ON;
 186
 187         /* Initialize the floating position from the position in tiling mode, if this
 188          * client never was floating (x == -1) */
 189         if (client->floating_rect.x == -1) {
 190                 /* Copy over the position */
 191                 client->floating_rect.x = client->rect.x;
 192                 client->floating_rect.y = client->rect.y;
 193
 194                 /* Copy size the other direction */
 195                 client->child_rect.width = client->floating_rect.width;
 196                 client->child_rect.height = client->floating_rect.height;
 197
 198                 client->rect.width = client->child_rect.width + 2 + 2;
 199                 client->rect.height = client->child_rect.height + (font->height + 2 + 2) + 2;
 200
 201                 DLOG("copying size from tiling (%d, %d) size (%d, %d)\n", client->floating_rect.x, client->floating_rect.y,
 202                                 client->floating_rect.width, client->floating_rect.height);
 203         } else {
 204                 /* If the client was already in floating before we restore the old position / size */
 205                 DLOG("using: (%d, %d) size (%d, %d)\n", client->floating_rect.x, client->floating_rect.y,
 206                         client->floating_rect.width, client->floating_rect.height);
 207                 memcpy(&(client->rect), &(client->floating_rect), sizeof(Rect));
 208         }
 209
 210         /* Raise the client */
 211         xcb_raise_window(conn, client->frame);
 212         reposition_client(conn, client);
 213         resize_client(conn, client);
 214         /* redecorate_window flushes */
 215         redecorate_window(conn, client);
 216
 217         /* Re-render the tiling layout of this container */
 218         render_container(conn, con);
 219         xcb_flush(conn);
 220 #endif
 221 }
 222
 223 #if 0
 224 /*
 225  * Removes the floating client from its workspace and attaches it to the new workspace.
 226  * This is centralized here because it may happen if you move it via keyboard and
 227  * if you move it using your mouse.
 228  *
 229  */
 230 void floating_assign_to_workspace(Client *client, Workspace *new_workspace) {
 231         /* Remove from focus stack and list of floating clients */
 232         SLIST_REMOVE(&(client->workspace->focus_stack), client, Client, focus_clients);
 233         TAILQ_REMOVE(&(client->workspace->floating_clients), client, floating_clients);
 234
 235         if (client->workspace->fullscreen_client == client)
 236                 client->workspace->fullscreen_client = NULL;
 237
 238         /* Insert into destination focus stack and list of floating clients */
 239         client->workspace = new_workspace;
 240         SLIST_INSERT_HEAD(&(client->workspace->focus_stack), client, focus_clients);
 241         TAILQ_INSERT_TAIL(&(client->workspace->floating_clients), client, floating_clients);
 242         if (client->fullscreen)
 243                 client->workspace->fullscreen_client = client;
 244 }
 245
 246 /*
 247  * This is an ugly data structure which we need because there is no standard
 248  * way of having nested functions (only available as a gcc extension at the
 249  * moment, clang doesn’t support it) or blocks (only available as a clang
 250  * extension and only on Mac OS X systems at the moment).
 251  *
 252  */
 253 struct resize_callback_params {
 254         border_t border;
 255         xcb_button_press_event_t *event;
 256 };
 257
 258 DRAGGING_CB(resize_callback) {
 259         struct resize_callback_params *params = extra;
 260         xcb_button_press_event_t *event = params->event;
 261         switch (params->border) {
 262                 case BORDER_RIGHT: {
 263                         int new_width = old_rect->width + (new_x - event->root_x);
 264                         if ((new_width < 0) ||
 265                             (new_width < client_min_width(client) && client->rect.width >= new_width))
 266                                 return;
 267                         client->rect.width = new_width;
 268                         break;
 269                 }
 270
 271                 case BORDER_BOTTOM: {
 272                         int new_height = old_rect->height + (new_y - event->root_y);
 273                         if ((new_height < 0) ||
 274                             (new_height < client_min_height(client) && client->rect.height >= new_height))
 275                                 return;
 276                         client->rect.height = old_rect->height + (new_y - event->root_y);
 277                         break;
 278                 }
 279
 280                 case BORDER_TOP: {
 281                         int new_height = old_rect->height + (event->root_y - new_y);
 282                         if ((new_height < 0) ||
 283                             (new_height < client_min_height(client) && client->rect.height >= new_height))
 284                                 return;
 285
 286                         client->rect.y = old_rect->y + (new_y - event->root_y);
 287                         client->rect.height = new_height;
 288                         break;
 289                 }
 290
 291                 case BORDER_LEFT: {
 292                         int new_width = old_rect->width + (event->root_x - new_x);
 293                         if ((new_width < 0) ||
 294                             (new_width < client_min_width(client) && client->rect.width >= new_width))
 295                                 return;
 296                         client->rect.x = old_rect->x + (new_x - event->root_x);
 297                         client->rect.width = new_width;
 298                         break;
 299                 }
 300         }
 301
 302         /* Push the new position/size to X11 */
 303         reposition_client(conn, client);
 304         resize_client(conn, client);
 305         xcb_flush(conn);
 306 }
 307
 308
 309 /*
 310  * Called whenever the user clicks on a border (not the titlebar!) of a floating window.
 311  * Determines on which border the user clicked and launches the drag_pointer function
 312  * with the resize_callback.
 313  *
 314  */
 315 int floating_border_click(xcb_connection_t *conn, Client *client, xcb_button_press_event_t *event) {
 316         DLOG("floating border click\n");
 317
 318         border_t border;
 319
 320         if (event->event_y < 2)
 321                 border = BORDER_TOP;
 322         else if (event->event_y >= (client->rect.height - 2))
 323                 border = BORDER_BOTTOM;
 324         else if (event->event_x <= 2)
 325                 border = BORDER_LEFT;
 326         else if (event->event_x >= (client->rect.width - 2))
 327                 border = BORDER_RIGHT;
 328         else {
 329                 DLOG("Not on any border, not doing anything.\n");
 330                 return 1;
 331         }
 332
 333         DLOG("border = %d\n", border);
 334
 335         struct resize_callback_params params = { border, event };
 336
 337         drag_pointer(conn, client, event, XCB_NONE, border, resize_callback, &params);
 338
 339         return 1;
 340 }
 341
 342 #endif
 343 DRAGGING_CB(drag_window_callback) {
 344         struct xcb_button_press_event_t *event = extra;
 345
 346         /* Reposition the client correctly while moving */
 347         con->rect.x = old_rect->x + (new_x - event->root_x);
 348         con->rect.y = old_rect->y + (new_y - event->root_y);
 349         /* TODO: don’t re-render the whole tree just because we change
 350          * coordinates of a floating window */
 351         tree_render();
 352         x_push_changes(croot);
 353 }
 354
 355 /*
 356  * Called when the user clicked on the titlebar of a floating window.
 357  * Calls the drag_pointer function with the drag_window callback
 358  *
 359  */
 360 void floating_drag_window(Con *con, xcb_button_press_event_t *event) {
 361         DLOG("floating_drag_window\n");
 362
 363         drag_pointer(con, event, XCB_NONE, BORDER_TOP /* irrelevant */, drag_window_callback, event);
 364         tree_render();
 365 }
 366
 367 /*
 368  * This is an ugly data structure which we need because there is no standard
 369  * way of having nested functions (only available as a gcc extension at the
 370  * moment, clang doesn’t support it) or blocks (only available as a clang
 371  * extension and only on Mac OS X systems at the moment).
 372  *
 373  */
 374 struct resize_window_callback_params {
 375     border_t corner;
 376     bool proportional;
 377     xcb_button_press_event_t *event;
 378 };
 379
 380 DRAGGING_CB(resize_window_callback) {
 381     struct resize_window_callback_params *params = extra;
 382     xcb_button_press_event_t *event = params->event;
 383     border_t corner = params->corner;
 384
 385     int32_t dest_x = con->rect.x;
 386     int32_t dest_y = con->rect.y;
 387     uint32_t dest_width;
 388     uint32_t dest_height;
 389
 390     double ratio = (double) old_rect->width / old_rect->height;
 391
 392     /* First guess: We resize by exactly the amount the mouse moved,
 393      * taking into account in which corner the client was grabbed */
 394     if (corner & BORDER_LEFT)
 395             dest_width = old_rect->width - (new_x - event->root_x);
 396     else dest_width = old_rect->width + (new_x - event->root_x);
 397
 398     if (corner & BORDER_TOP)
 399             dest_height = old_rect->height - (new_y - event->root_y);
 400     else dest_height = old_rect->height + (new_y - event->root_y);
 401
 402     /* TODO: minimum window size */
 403 #if 0
 404     /* Obey minimum window size */
 405     dest_width = max(dest_width, client_min_width(client));
 406     dest_height = max(dest_height, client_min_height(client));
 407 #endif
 408
 409     /* User wants to keep proportions, so we may have to adjust our values */
 410     if (params->proportional) {
 411             dest_width = max(dest_width, (int) (dest_height * ratio));
 412             dest_height = max(dest_height, (int) (dest_width / ratio));
 413     }
 414
 415     /* If not the lower right corner is grabbed, we must also reposition
 416      * the client by exactly the amount we resized it */
 417     if (corner & BORDER_LEFT)
 418             dest_x = old_rect->x + (old_rect->width - dest_width);
 419
 420     if (corner & BORDER_TOP)
 421             dest_y = old_rect->y + (old_rect->height - dest_height);
 422
 423     con->rect = (Rect) { dest_x, dest_y, dest_width, dest_height };
 424
 425     /* TODO: don’t re-render the whole tree just because we change
 426      * coordinates of a floating window */
 427     tree_render();
 428     x_push_changes(croot);
 429 }
 430
 431 /*
 432  * Called when the user clicked on a floating window while holding the
 433  * floating_modifier and the right mouse button.
 434  * Calls the drag_pointer function with the resize_window callback
 435  *
 436  */
 437 void floating_resize_window(Con *con, bool proportional,
 438                             xcb_button_press_event_t *event) {
 439     DLOG("floating_resize_window\n");
 440
 441     /* corner saves the nearest corner to the original click. It contains
 442      * a bitmask of the nearest borders (BORDER_LEFT, BORDER_RIGHT, …) */
 443     border_t corner = 0;
 444
 445     if (event->event_x <= (con->rect.width / 2))
 446             corner |= BORDER_LEFT;
 447     else corner |= BORDER_RIGHT;
 448
 449     if (event->event_y <= (con->rect.height / 2))
 450             corner |= BORDER_TOP;
 451     else corner |= BORDER_RIGHT;
 452
 453     struct resize_window_callback_params params = { corner, proportional, event };
 454
 455     drag_pointer(con, event, XCB_NONE, BORDER_TOP /* irrelevant */, resize_window_callback, &params);
 456 }
 457
 458 /*
 459  * This function grabs your pointer and lets you drag stuff around (borders).
 460  * Every time you move your mouse, an XCB_MOTION_NOTIFY event will be received
 461  * and the given callback will be called with the parameters specified (client,
 462  * border on which the click originally was), the original rect of the client,
 463  * the event and the new coordinates (x, y).
 464  *
 465  */
 466 void drag_pointer(Con *con, xcb_button_press_event_t *event, xcb_window_t
 467                 confine_to, border_t border, callback_t callback, void *extra)
 468 {
 469         xcb_window_t root = xcb_setup_roots_iterator(xcb_get_setup(conn)).data->root;
 470         uint32_t new_x, new_y;
 471         Rect old_rect;
 472         if (con != NULL)
 473                 memcpy(&old_rect, &(con->rect), sizeof(Rect));
 474
 475         /* Grab the pointer */
 476         /* TODO: returncode */
 477         xcb_grab_pointer(conn,
 478                         false,               /* get all pointer events specified by the following mask */
 479                         root,                /* grab the root window */
 480                         XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION, /* which events to let through */
 481                         XCB_GRAB_MODE_ASYNC, /* pointer events should continue as normal */
 482                         XCB_GRAB_MODE_ASYNC, /* keyboard mode */
 483                         confine_to,          /* confine_to = in which window should the cursor stay */
 484                         XCB_NONE,            /* don’t display a special cursor */
 485                         XCB_CURRENT_TIME);
 486
 487         /* Go into our own event loop */
 488         xcb_flush(conn);
 489
 490         xcb_generic_event_t *inside_event, *last_motion_notify = NULL;
 491         /* I’ve always wanted to have my own eventhandler… */
 492         while ((inside_event = xcb_wait_for_event(conn))) {
 493                 /* We now handle all events we can get using xcb_poll_for_event */
 494                 do {
 495                         /* Same as get_event_handler in xcb */
 496                         int nr = inside_event->response_type;
 497                         if (nr == 0) {
 498                                 /* An error occured */
 499                                 //handle_event(NULL, conn, inside_event);
 500                                 free(inside_event);
 501                                 continue;
 502                         }
 503                         assert(nr < 256);
 504                         nr &= XCB_EVENT_RESPONSE_TYPE_MASK;
 505                         assert(nr >= 2);
 506
 507                         switch (nr) {
 508                                 case XCB_BUTTON_RELEASE:
 509                                         goto done;
 510
 511                                 case XCB_MOTION_NOTIFY:
 512                                         /* motion_notify events are saved for later */
 513                                         FREE(last_motion_notify);
 514                                         last_motion_notify = inside_event;
 515                                         break;
 516
 517                                 case XCB_UNMAP_NOTIFY:
 518                                         DLOG("Unmap-notify, aborting\n");
 519                                         xcb_event_handle(&evenths, inside_event);
 520                                         goto done;
 521
 522                                 default:
 523                                         DLOG("Passing to original handler\n");
 524                                         /* Use original handler */
 525                                         xcb_event_handle(&evenths, inside_event);
 526                                         break;
 527                         }
 528                         if (last_motion_notify != inside_event)
 529                                 free(inside_event);
 530                 } while ((inside_event = xcb_poll_for_event(conn)) != NULL);
 531
 532                 if (last_motion_notify == NULL)
 533                         continue;
 534
 535                 new_x = ((xcb_motion_notify_event_t*)last_motion_notify)->root_x;
 536                 new_y = ((xcb_motion_notify_event_t*)last_motion_notify)->root_y;
 537
 538                 callback(con, &old_rect, new_x, new_y, extra);
 539                 FREE(last_motion_notify);
 540         }
 541 done:
 542         xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
 543         xcb_flush(conn);
 544 }
 545
 546 #if 0
 547 /*
 548  * Changes focus in the given direction for floating clients.
 549  *
 550  * Changing to the left/right means going to the previous/next floating client,
 551  * changing to top/bottom means cycling through the Z-index.
 552  *
 553  */
 554 void floating_focus_direction(xcb_connection_t *conn, Client *currently_focused, direction_t direction) {
 555         DLOG("floating focus\n");
 556
 557         if (direction == D_LEFT || direction == D_RIGHT) {
 558                 /* Go to the next/previous floating client */
 559                 Client *client;
 560
 561                 while ((client = (direction == D_LEFT ? TAILQ_PREV(currently_focused, floating_clients_head, floating_clients) :
 562                                                         TAILQ_NEXT(currently_focused, floating_clients))) !=
 563                        TAILQ_END(&(currently_focused->workspace->floating_clients))) {
 564                         if (!client->floating)
 565                                 continue;
 566                         set_focus(conn, client, true);
 567                         return;
 568                 }
 569         }
 570 }
 571
 572 /*
 573  * Moves the client 10px to the specified direction.
 574  *
 575  */
 576 void floating_move(xcb_connection_t *conn, Client *currently_focused, direction_t direction) {
 577         DLOG("floating move\n");
 578
 579         Rect destination = currently_focused->rect;
 580         Rect *screen = &(currently_focused->workspace->output->rect);
 581
 582         switch (direction) {
 583                 case D_LEFT:
 584                         destination.x -= 10;
 585                         break;
 586                 case D_RIGHT:
 587                         destination.x += 10;
 588                         break;
 589                 case D_UP:
 590                         destination.y -= 10;
 591                         break;
 592                 case D_DOWN:
 593                         destination.y += 10;
 594                         break;
 595                 /* to make static analyzers happy */
 596                 default:
 597                         break;
 598         }
 599
 600         /* Prevent windows from vanishing completely */
 601         if ((int32_t)(destination.x + destination.width - 5) <= (int32_t)screen->x ||
 602             (int32_t)(destination.x + 5) >= (int32_t)(screen->x + screen->width) ||
 603             (int32_t)(destination.y + destination.height - 5) <= (int32_t)screen->y ||
 604             (int32_t)(destination.y + 5) >= (int32_t)(screen->y + screen->height)) {
 605                 DLOG("boundary check failed, not moving\n");
 606                 return;
 607         }
 608
 609         currently_focused->rect = destination;
 610         reposition_client(conn, currently_focused);
 611
 612         /* Because reposition_client does not send a faked configure event (only resize does),
 613          * we need to initiate that on our own */
 614         fake_absolute_configure_notify(conn, currently_focused);
 615         /* fake_absolute_configure_notify flushes */
 616 }
 617
 618 /*
 619  * Hides all floating clients (or show them if they are currently hidden) on
 620  * the specified workspace.
 621  *
 622  */
 623 void floating_toggle_hide(xcb_connection_t *conn, Workspace *workspace) {
 624         Client *client;
 625
 626         workspace->floating_hidden = !workspace->floating_hidden;
 627         DLOG("floating_hidden is now: %d\n", workspace->floating_hidden);
 628         TAILQ_FOREACH(client, &(workspace->floating_clients), floating_clients) {
 629                 if (workspace->floating_hidden)
 630                         client_unmap(conn, client);
 631                 else client_map(conn, client);
 632         }
 633
 634         /* If we just unmapped all floating windows we should ensure that the focus
 635          * is set correctly, that ist, to the first non-floating client in stack */
 636         if (workspace->floating_hidden)
 637                 SLIST_FOREACH(client, &(workspace->focus_stack), focus_clients) {
 638                         if (client_is_floating(client))
 639                                 continue;
 640                         set_focus(conn, client, true);
 641                         return;
 642                 }
 643
 644         xcb_flush(conn);
 645 }
 646 #endif