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

   1 /*
   2  * vim:ts=8:expandtab
   3  *
   4  * i3 - an improved dynamic tiling window manager
   5  *
   6  * © 2009 Michael Stapelberg and contributors
   7  *
   8  * See file LICENSE for license information.
   9  *
  10  */
  11 #include <stdbool.h>
  12 #include <stdio.h>
  13 #include <stdlib.h>
  14 #include <assert.h>
  15 #include <unistd.h>
  16 #include <string.h>
  17
  18 #include <xcb/xcb.h>
  19
  20 #include "util.h"
  21 #include "data.h"
  22 #include "table.h"
  23 #include "layout.h"
  24 #include "i3.h"
  25 #include "xinerama.h"
  26
  27 bool focus_window_in_container(xcb_connection_t *conn, Container *container, direction_t direction) {
  28         /* If this container is empty, we’re done */
  29         if (container->currently_focused == NULL)
  30                 return false;
  31
  32         /* Get the previous/next client or wrap around */
  33         Client *candidate = NULL;
  34         if (direction == D_UP) {
  35                 if ((candidate = CIRCLEQ_PREV_OR_NULL(&(container->clients), container->currently_focused, clients)) == NULL)
  36                         candidate = CIRCLEQ_LAST(&(container->clients));
  37         }
  38         else if (direction == D_DOWN) {
  39                 if ((candidate = CIRCLEQ_NEXT_OR_NULL(&(container->clients), container->currently_focused, clients)) == NULL)
  40                         candidate = CIRCLEQ_FIRST(&(container->clients));
  41         } else LOG("Direction not implemented!\n");
  42
  43         /* If we could not switch, the container contains exactly one client. We return false */
  44         if (candidate == container->currently_focused)
  45                 return false;
  46
  47         /* Set focus */
  48         set_focus(conn, candidate, true);
  49
  50         return true;
  51 }
  52
  53 typedef enum { THING_WINDOW, THING_CONTAINER } thing_t;
  54
  55 static void focus_thing(xcb_connection_t *conn, direction_t direction, thing_t thing) {
  56         LOG("focusing direction %d\n", direction);
  57
  58         int new_row = current_row,
  59             new_col = current_col;
  60
  61         Container *container = CUR_CELL;
  62         Workspace *t_ws = c_ws;
  63
  64         /* There always is a container. If not, current_col or current_row is wrong */
  65         assert(container != NULL);
  66
  67         if (container->workspace->fullscreen_client != NULL) {
  68                 LOG("You're in fullscreen mode. Won't switch focus\n");
  69                 return;
  70         }
  71
  72         /* TODO: for horizontal default layout, this has to be expanded to LEFT/RIGHT */
  73         if (direction == D_UP || direction == D_DOWN) {
  74                 if (thing == THING_WINDOW)
  75                         /* Let’s see if we can perform up/down focus in the current container */
  76                         if (focus_window_in_container(conn, container, direction))
  77                                 return;
  78
  79                 if (direction == D_DOWN && cell_exists(current_col, current_row+1))
  80                         new_row = current_row + t_ws->table[current_col][current_row]->rowspan;
  81                 else if (direction == D_UP && cell_exists(current_col, current_row-1)) {
  82                         /* Set new_row as a sane default, but it may get overwritten in a second */
  83                         new_row--;
  84
  85                         /* Search from the top to correctly handle rowspanned containers */
  86                         for (int rows = 0; rows < current_row; rows += t_ws->table[current_col][rows]->rowspan) {
  87                                 if (new_row > (rows + (t_ws->table[current_col][rows]->rowspan - 1)))
  88                                         continue;
  89
  90                                 new_row = rows;
  91                                 break;
  92                         }
  93                 } else {
  94                         /* Let’s see if there is a screen down/up there to which we can switch */
  95                         LOG("container is at %d with height %d\n", container->y, container->height);
  96                         i3Screen *screen;
  97                         int destination_y = (direction == D_UP ? (container->y - 1) : (container->y + container->height + 1));
  98                         if ((screen = get_screen_containing(container->x, destination_y)) == NULL) {
  99                                 LOG("Wrapping screen around vertically\n");
 100                                 /* No screen found? Then wrap */
 101                                 screen = get_screen_most((direction == D_UP ? D_DOWN : D_UP));
 102                         }
 103                         t_ws = &(workspaces[screen->current_workspace]);
 104                         new_row = (direction == D_UP ? (t_ws->rows - 1) : 0);
 105                 }
 106         } else if (direction == D_LEFT || direction == D_RIGHT) {
 107                 if (direction == D_RIGHT && cell_exists(current_col+1, current_row))
 108                         new_col = current_col + t_ws->table[current_col][current_row]->colspan;
 109                 else if (direction == D_LEFT && cell_exists(current_col-1, current_row)) {
 110                         /* Set new_col as a sane default, but it may get overwritten in a second */
 111                         new_col--;
 112
 113                         /* Search from the left to correctly handle colspanned containers */
 114                         for (int cols = 0; cols < current_col; cols += t_ws->table[cols][current_row]->colspan) {
 115                                 if (new_col > (cols + (t_ws->table[cols][current_row]->colspan - 1)))
 116                                         continue;
 117
 118                                 new_col = cols;
 119                                 break;
 120                         }
 121                 } else {
 122                         /* Let’s see if there is a screen left/right here to which we can switch */
 123                         LOG("container is at %d with width %d\n", container->x, container->width);
 124                         i3Screen *screen;
 125                         int destination_x = (direction == D_LEFT ? (container->x - 1) : (container->x + container->width + 1));
 126                         if ((screen = get_screen_containing(destination_x, container->y)) == NULL) {
 127                                 LOG("Wrapping screen around horizontally\n");
 128                                 screen = get_screen_most((direction == D_LEFT ? D_RIGHT : D_LEFT));
 129                         }
 130                         t_ws = &(workspaces[screen->current_workspace]);
 131                         new_col = (direction == D_LEFT ? (t_ws->cols - 1) : 0);
 132                 }
 133         } else {
 134                 LOG("direction unhandled\n");
 135                 return;
 136         }
 137
 138         /* Bounds checking */
 139         if (new_col >= t_ws->cols)
 140                 new_col = (t_ws->cols - 1);
 141         if (new_row >= t_ws->rows)
 142                 new_row = (t_ws->rows - 1);
 143
 144         if (t_ws->table[new_col][new_row]->currently_focused != NULL)
 145                 set_focus(conn, t_ws->table[new_col][new_row]->currently_focused, true);
 146 }
 147
 148 /*
 149  * Tries to move the window inside its current container.
 150  *
 151  * Returns true if the window could be moved, false otherwise.
 152  *
 153  */
 154 static bool move_current_window_in_container(xcb_connection_t *conn, Client *client,
 155                 direction_t direction) {
 156         assert(client->container != NULL);
 157
 158         Client *other = (direction == D_UP ? CIRCLEQ_PREV(client, clients) :
 159                                              CIRCLEQ_NEXT(client, clients));
 160
 161         if (other == CIRCLEQ_END(&(client->container->clients)))
 162                 return false;
 163
 164         LOG("i can do that\n");
 165         /* We can move the client inside its current container */
 166         CIRCLEQ_REMOVE(&(client->container->clients), client, clients);
 167         if (direction == D_UP)
 168                 CIRCLEQ_INSERT_BEFORE(&(client->container->clients), other, client, clients);
 169         else CIRCLEQ_INSERT_AFTER(&(client->container->clients), other, client, clients);
 170         render_layout(conn);
 171         return true;
 172 }
 173
 174 /*
 175  * Moves the current window or whole container to the given direction, creating a column/row if
 176  * necessary.
 177  *
 178  */
 179 static void move_current_window(xcb_connection_t *conn, direction_t direction) {
 180         LOG("moving window to direction %s\n", (direction == D_UP ? "up" : (direction == D_DOWN ? "down" :
 181                                             (direction == D_LEFT ? "left" : "right"))));
 182         /* Get current window */
 183         Container *container = CUR_CELL,
 184                   *new = NULL;
 185
 186         /* There has to be a container, see focus_window() */
 187         assert(container != NULL);
 188
 189         /* If there is no window or the dock window is focused, we’re done */
 190         if (container->currently_focused == NULL ||
 191             container->currently_focused->dock)
 192                 return;
 193
 194         /* As soon as the client is moved away, the last focused client in the old
 195          * container needs to get focus, if any. Therefore, we save it here. */
 196         Client *current_client = container->currently_focused;
 197         Client *to_focus = get_last_focused_client(conn, container, current_client);
 198
 199         if (to_focus == NULL) {
 200                 to_focus = CIRCLEQ_NEXT_OR_NULL(&(container->clients), current_client, clients);
 201                 if (to_focus == NULL)
 202                         to_focus = CIRCLEQ_PREV_OR_NULL(&(container->clients), current_client, clients);
 203         }
 204
 205         switch (direction) {
 206                 case D_LEFT:
 207                         /* If we’re at the left-most position, move the rest of the table right */
 208                         if (current_col == 0) {
 209                                 expand_table_cols_at_head(c_ws);
 210                                 new = CUR_CELL;
 211                         } else
 212                                 new = CUR_TABLE[--current_col][current_row];
 213                         break;
 214                 case D_RIGHT:
 215                         if (current_col == (c_ws->cols-1))
 216                                 expand_table_cols(c_ws);
 217
 218                         new = CUR_TABLE[++current_col][current_row];
 219                         break;
 220                 case D_UP:
 221                         if (move_current_window_in_container(conn, current_client, D_UP))
 222                                 return;
 223
 224                         /* if we’re at the up-most position, move the rest of the table down */
 225                         if (current_row == 0) {
 226                                 expand_table_rows_at_head(c_ws);
 227                                 new = CUR_CELL;
 228                         } else
 229                                 new = CUR_TABLE[current_col][--current_row];
 230                         break;
 231                 case D_DOWN:
 232                         if (move_current_window_in_container(conn, current_client, D_DOWN))
 233                                 return;
 234
 235                         if (current_row == (c_ws->rows-1))
 236                                 expand_table_rows(c_ws);
 237
 238                         new = CUR_TABLE[current_col][++current_row];
 239                         break;
 240         }
 241
 242         /* Remove it from the old container and put it into the new one */
 243         remove_client_from_container(conn, current_client, container);
 244
 245         if (new->currently_focused != NULL)
 246                 CIRCLEQ_INSERT_AFTER(&(new->clients), new->currently_focused, current_client, clients);
 247         else CIRCLEQ_INSERT_TAIL(&(new->clients), current_client, clients);
 248         SLIST_INSERT_HEAD(&(new->workspace->focus_stack), current_client, focus_clients);
 249
 250         /* Update data structures */
 251         current_client->container = new;
 252         current_client->workspace = new->workspace;
 253         container->currently_focused = to_focus;
 254         new->currently_focused = current_client;
 255
 256         Workspace *workspace = container->workspace;
 257
 258         /* delete all empty columns/rows */
 259         cleanup_table(conn, workspace);
 260
 261         /* Fix colspan/rowspan if it’d overlap */
 262         fix_colrowspan(conn, workspace);
 263
 264         render_layout(conn);
 265
 266         set_focus(conn, current_client, true);
 267 }
 268
 269 static void move_current_container(xcb_connection_t *conn, direction_t direction) {
 270         LOG("moving container to direction %s\n", (direction == D_UP ? "up" : (direction == D_DOWN ? "down" :
 271                                             (direction == D_LEFT ? "left" : "right"))));
 272         /* Get current window */
 273         Container *container = CUR_CELL,
 274                   *new = NULL;
 275
 276         Container **old = &CUR_CELL;
 277
 278         /* There has to be a container, see focus_window() */
 279         assert(container != NULL);
 280
 281         switch (direction) {
 282                 case D_LEFT:
 283                         /* If we’re at the left-most position, move the rest of the table right */
 284                         if (current_col == 0) {
 285                                 expand_table_cols_at_head(c_ws);
 286                                 new = CUR_CELL;
 287                                 old = &CUR_TABLE[current_col+1][current_row];
 288                         } else
 289                                 new = CUR_TABLE[--current_col][current_row];
 290                         break;
 291                 case D_RIGHT:
 292                         if (current_col == (c_ws->cols-1))
 293                                 expand_table_cols(c_ws);
 294
 295                         new = CUR_TABLE[++current_col][current_row];
 296                         break;
 297                 case D_UP:
 298                         /* if we’re at the up-most position, move the rest of the table down */
 299                         if (current_row == 0) {
 300                                 expand_table_rows_at_head(c_ws);
 301                                 new = CUR_CELL;
 302                                 old = &CUR_TABLE[current_col][current_row+1];
 303                         } else
 304                                 new = CUR_TABLE[current_col][--current_row];
 305                         break;
 306                 case D_DOWN:
 307                         if (current_row == (c_ws->rows-1))
 308                                 expand_table_rows(c_ws);
 309
 310                         new = CUR_TABLE[current_col][++current_row];
 311                         break;
 312         }
 313
 314         LOG("old = %d,%d and new = %d,%d\n", container->col, container->row, new->col, new->row);
 315
 316         /* Swap the containers */
 317         int col = new->col;
 318         int row = new->row;
 319
 320         *old = new;
 321         new->col = container->col;
 322         new->row = container->row;
 323
 324         CUR_CELL = container;
 325         container->col = col;
 326         container->row = row;
 327
 328         Workspace *workspace = container->workspace;
 329
 330         /* delete all empty columns/rows */
 331         cleanup_table(conn, workspace);
 332
 333         /* Fix colspan/rowspan if it’d overlap */
 334         fix_colrowspan(conn, workspace);
 335
 336         render_layout(conn);
 337 }
 338
 339 /*
 340  * "Snaps" the current container (not possible for windows, because it works at table base)
 341  * to the given direction, that is, adjusts cellspan/rowspan
 342  *
 343  */
 344 static void snap_current_container(xcb_connection_t *conn, direction_t direction) {
 345         LOG("snapping container to direction %d\n", direction);
 346
 347         Container *container = CUR_CELL;
 348
 349         assert(container != NULL);
 350
 351         switch (direction) {
 352                 case D_LEFT:
 353                         /* Snap to the left is actually a move to the left and then a snap right */
 354                         if (!cell_exists(container->col - 1, container->row) ||
 355                                 CUR_TABLE[container->col-1][container->row]->currently_focused != NULL) {
 356                                 LOG("cannot snap to left - the cell is already used\n");
 357                                 return;
 358                         }
 359
 360                         move_current_window(conn, D_LEFT);
 361                         snap_current_container(conn, D_RIGHT);
 362                         return;
 363                 case D_RIGHT: {
 364                         /* Check if the cell is used */
 365                         int new_col = container->col + container->colspan;
 366                         if (!cell_exists(new_col, container->row) ||
 367                                 CUR_TABLE[new_col][container->row]->currently_focused != NULL) {
 368                                 LOG("cannot snap to right - the cell is already used\n");
 369                                 return;
 370                         }
 371
 372                         /* Check if there are other cells with rowspan, which are in our way.
 373                          * If so, reduce their rowspan. */
 374                         for (int i = container->row-1; i >= 0; i--) {
 375                                 LOG("we got cell %d, %d with rowspan %d\n",
 376                                                 new_col, i, CUR_TABLE[new_col][i]->rowspan);
 377                                 while ((CUR_TABLE[new_col][i]->rowspan-1) >= (container->row - i))
 378                                         CUR_TABLE[new_col][i]->rowspan--;
 379                                 LOG("new rowspan = %d\n", CUR_TABLE[new_col][i]->rowspan);
 380                         }
 381
 382                         container->colspan++;
 383                         break;
 384                 }
 385                 case D_UP:
 386                         if (!cell_exists(container->col, container->row - 1) ||
 387                                 CUR_TABLE[container->col][container->row-1]->currently_focused != NULL) {
 388                                 LOG("cannot snap to top - the cell is already used\n");
 389                                 return;
 390                         }
 391
 392                         move_current_window(conn, D_UP);
 393                         snap_current_container(conn, D_DOWN);
 394                         return;
 395                 case D_DOWN: {
 396                         LOG("snapping down\n");
 397                         int new_row = container->row + container->rowspan;
 398                         if (!cell_exists(container->col, new_row) ||
 399                                 CUR_TABLE[container->col][new_row]->currently_focused != NULL) {
 400                                 LOG("cannot snap down - the cell is already used\n");
 401                                 return;
 402                         }
 403
 404                         for (int i = container->col-1; i >= 0; i--) {
 405                                 LOG("we got cell %d, %d with colspan %d\n",
 406                                                 i, new_row, CUR_TABLE[i][new_row]->colspan);
 407                                 while ((CUR_TABLE[i][new_row]->colspan-1) >= (container->col - i))
 408                                         CUR_TABLE[i][new_row]->colspan--;
 409                                 LOG("new colspan = %d\n", CUR_TABLE[i][new_row]->colspan);
 410
 411                         }
 412
 413                         container->rowspan++;
 414                         break;
 415                 }
 416         }
 417
 418         render_layout(conn);
 419 }
 420
 421 /*
 422  * Moves the currently selected window to the given workspace
 423  *
 424  */
 425 static void move_current_window_to_workspace(xcb_connection_t *conn, int workspace) {
 426         LOG("Moving current window to workspace %d\n", workspace);
 427
 428         Container *container = CUR_CELL;
 429
 430         assert(container != NULL);
 431
 432         /* t_ws (to workspace) is just a container pointer to the workspace we’re switching to */
 433         Workspace *t_ws = &(workspaces[workspace-1]);
 434
 435         Client *current_client = container->currently_focused;
 436         if (current_client == NULL) {
 437                 LOG("No currently focused client in current container.\n");
 438                 return;
 439         }
 440         Client *to_focus = CIRCLEQ_NEXT_OR_NULL(&(container->clients), current_client, clients);
 441         if (to_focus == NULL)
 442                 to_focus = CIRCLEQ_PREV_OR_NULL(&(container->clients), current_client, clients);
 443
 444         if (t_ws->screen == NULL) {
 445                 LOG("initializing new workspace, setting num to %d\n", workspace-1);
 446                 t_ws->screen = container->workspace->screen;
 447                 /* Copy the dimensions from the virtual screen */
 448                 memcpy(&(t_ws->rect), &(container->workspace->screen->rect), sizeof(Rect));
 449         } else {
 450                 /* Check if there is already a fullscreen client on the destination workspace and
 451                  * stop moving if so. */
 452                 if (current_client->fullscreen && (t_ws->fullscreen_client != NULL)) {
 453                         LOG("Not moving: Fullscreen client already existing on destination workspace.\n");
 454                         return;
 455                 }
 456         }
 457
 458         Container *to_container = t_ws->table[t_ws->current_col][t_ws->current_row];
 459
 460         assert(to_container != NULL);
 461
 462         remove_client_from_container(conn, current_client, container);
 463         if (container->workspace->fullscreen_client == current_client)
 464                 container->workspace->fullscreen_client = NULL;
 465
 466         CIRCLEQ_INSERT_TAIL(&(to_container->clients), current_client, clients);
 467         SLIST_INSERT_HEAD(&(to_container->workspace->focus_stack), current_client, focus_clients);
 468         if (current_client->fullscreen)
 469                 t_ws->fullscreen_client = current_client;
 470         LOG("Moved.\n");
 471
 472         current_client->container = to_container;
 473         current_client->workspace = to_container->workspace;
 474         container->currently_focused = to_focus;
 475         to_container->currently_focused = current_client;
 476
 477         /* If we’re moving it to an invisible screen, we need to unmap it */
 478         if (to_container->workspace->screen->current_workspace != to_container->workspace->num) {
 479                 LOG("This workspace is not visible, unmapping\n");
 480                 xcb_unmap_window(conn, current_client->frame);
 481         }
 482
 483         /* delete all empty columns/rows */
 484         cleanup_table(conn, container->workspace);
 485
 486         render_layout(conn);
 487 }
 488
 489 /*
 490  * Switches to the given workspace
 491  *
 492  */
 493 void show_workspace(xcb_connection_t *conn, int workspace) {
 494         Client *client;
 495         bool need_warp = false;
 496         xcb_window_t root = xcb_setup_roots_iterator(xcb_get_setup(conn)).data->root;
 497         /* t_ws (to workspace) is just a convenience pointer to the workspace we’re switching to */
 498         Workspace *t_ws = &(workspaces[workspace-1]);
 499
 500         LOG("show_workspace(%d)\n", workspace);
 501
 502         /* Store current_row/current_col */
 503         c_ws->current_row = current_row;
 504         c_ws->current_col = current_col;
 505
 506         /* Check if the workspace has not been used yet */
 507         if (t_ws->screen == NULL) {
 508                 LOG("initializing new workspace, setting num to %d\n", workspace);
 509                 t_ws->screen = c_ws->screen;
 510                 /* Copy the dimensions from the virtual screen */
 511                 memcpy(&(t_ws->rect), &(t_ws->screen->rect), sizeof(Rect));
 512         }
 513
 514         if (c_ws->screen != t_ws->screen) {
 515                 /* We need to switch to the other screen first */
 516                 LOG("moving over to other screen.\n");
 517
 518                 /* Store the old client */
 519                 Client *old_client = CUR_CELL->currently_focused;
 520
 521                 c_ws = &(workspaces[t_ws->screen->current_workspace]);
 522                 current_col = c_ws->current_col;
 523                 current_row = c_ws->current_row;
 524                 if (CUR_CELL->currently_focused != NULL)
 525                         need_warp = true;
 526                 else {
 527                         Rect *dims = &(c_ws->screen->rect);
 528                         xcb_warp_pointer(conn, XCB_NONE, root, 0, 0, 0, 0,
 529                                          dims->x + (dims->width / 2), dims->y + (dims->height / 2));
 530                 }
 531
 532                 /* Re-decorate the old client, it’s not focused anymore */
 533                 if ((old_client != NULL) && !old_client->dock)
 534                         redecorate_window(conn, old_client);
 535                 else xcb_flush(conn);
 536         }
 537
 538         /* Check if we need to change something or if we’re already there */
 539         if (c_ws->screen->current_workspace == (workspace-1)) {
 540                 if (CUR_CELL->currently_focused != NULL) {
 541                         set_focus(conn, CUR_CELL->currently_focused, true);
 542                         if (need_warp) {
 543                                 warp_pointer_into(conn, CUR_CELL->currently_focused);
 544                                 xcb_flush(conn);
 545                         }
 546                 }
 547                 return;
 548         }
 549
 550         t_ws->screen->current_workspace = workspace-1;
 551
 552         /* Unmap all clients of the current workspace */
 553         unmap_workspace(conn, c_ws);
 554
 555         c_ws = &workspaces[workspace-1];
 556         current_row = c_ws->current_row;
 557         current_col = c_ws->current_col;
 558         LOG("new current row = %d, current col = %d\n", current_row, current_col);
 559
 560         ignore_enter_notify_forall(conn, c_ws, true);
 561
 562         /* Map all clients on the new workspace */
 563         FOR_TABLE(c_ws)
 564                 CIRCLEQ_FOREACH(client, &(c_ws->table[cols][rows]->clients), clients)
 565                         xcb_map_window(conn, client->frame);
 566
 567         /* Map all stack windows, if any */
 568         struct Stack_Window *stack_win;
 569         SLIST_FOREACH(stack_win, &stack_wins, stack_windows)
 570                 if (stack_win->container->workspace == c_ws)
 571                         xcb_map_window(conn, stack_win->window);
 572
 573         ignore_enter_notify_forall(conn, c_ws, false);
 574
 575         /* Restore focus on the new workspace */
 576         if (CUR_CELL->currently_focused != NULL) {
 577                 set_focus(conn, CUR_CELL->currently_focused, true);
 578                 if (need_warp) {
 579                         warp_pointer_into(conn, CUR_CELL->currently_focused);
 580                         xcb_flush(conn);
 581                 }
 582         } else xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, root, XCB_CURRENT_TIME);
 583
 584         render_layout(conn);
 585 }
 586
 587 /*
 588  * Parses a command, see file CMDMODE for more information
 589  *
 590  */
 591 void parse_command(xcb_connection_t *conn, const char *command) {
 592         LOG("--- parsing command \"%s\" ---\n", command);
 593         /* Hmm, just to be sure */
 594         if (command[0] == '\0')
 595                 return;
 596
 597         /* Is it an <exec>? Then execute the given command. */
 598         if (STARTS_WITH(command, "exec ")) {
 599                 LOG("starting \"%s\"\n", command + strlen("exec "));
 600                 start_application(command+strlen("exec "));
 601                 return;
 602         }
 603
 604         /* Is it an <exit>? */
 605         if (STARTS_WITH(command, "exit")) {
 606                 LOG("User issued exit-command, exiting without error.\n");
 607                 exit(EXIT_SUCCESS);
 608         }
 609
 610         /* Is it <restart>? Then restart in place. */
 611         if (STARTS_WITH(command, "restart")) {
 612                 LOG("restarting \"%s\"...\n", start_argv[0]);
 613                 execvp(start_argv[0], start_argv);
 614                 /* not reached */
 615         }
 616
 617         if (STARTS_WITH(command, "kill")) {
 618                 if (CUR_CELL->currently_focused == NULL) {
 619                         LOG("There is no window to kill\n");
 620                         return;
 621                 }
 622
 623                 LOG("Killing current window\n");
 624                 kill_window(conn, CUR_CELL->currently_focused);
 625                 return;
 626         }
 627
 628         /* Is it 'f' for fullscreen? */
 629         if (command[0] == 'f') {
 630                 if (CUR_CELL->currently_focused == NULL)
 631                         return;
 632                 toggle_fullscreen(conn, CUR_CELL->currently_focused);
 633                 return;
 634         }
 635
 636         /* Is it just 's' for stacking or 'd' for default? */
 637         if ((command[0] == 's' || command[0] == 'd') && (command[1] == '\0')) {
 638                 LOG("Switching mode for current container\n");
 639                 switch_layout_mode(conn, CUR_CELL, (command[0] == 's' ? MODE_STACK : MODE_DEFAULT));
 640                 return;
 641         }
 642
 643         enum { WITH_WINDOW, WITH_CONTAINER } with = WITH_WINDOW;
 644
 645         /* Is it a <with>? */
 646         if (command[0] == 'w') {
 647                 command++;
 648                 /* TODO: implement */
 649                 if (command[0] == 'c') {
 650                         with = WITH_CONTAINER;
 651                         command++;
 652                 } else {
 653                         LOG("not yet implemented.\n");
 654                         return;
 655                 }
 656         }
 657
 658         /* It's a normal <cmd> */
 659         char *rest = NULL;
 660         enum { ACTION_FOCUS, ACTION_MOVE, ACTION_SNAP } action = ACTION_FOCUS;
 661         direction_t direction;
 662         int times = strtol(command, &rest, 10);
 663         if (rest == NULL) {
 664                 LOG("Invalid command (\"%s\")\n", command);
 665                 return;
 666         }
 667
 668         if (*rest == '\0') {
 669                 /* No rest? This was a tag number, not a times specification */
 670                 show_workspace(conn, times);
 671                 return;
 672         }
 673
 674         if (*rest == 'm' || *rest == 's') {
 675                 action = (*rest == 'm' ? ACTION_MOVE : ACTION_SNAP);
 676                 rest++;
 677         }
 678
 679         int workspace = strtol(rest, &rest, 10);
 680
 681         if (rest == NULL) {
 682                 LOG("Invalid command (\"%s\")\n", command);
 683                 return;
 684         }
 685
 686         if (*rest == '\0') {
 687                 move_current_window_to_workspace(conn, workspace);
 688                 return;
 689         }
 690
 691         /* Now perform action to <where> */
 692         while (*rest != '\0') {
 693                 if (*rest == 'h')
 694                         direction = D_LEFT;
 695                 else if (*rest == 'j')
 696                         direction = D_DOWN;
 697                 else if (*rest == 'k')
 698                         direction = D_UP;
 699                 else if (*rest == 'l')
 700                         direction = D_RIGHT;
 701                 else {
 702                         LOG("unknown direction: %c\n", *rest);
 703                         return;
 704                 }
 705
 706                 if (action == ACTION_FOCUS)
 707                         focus_thing(conn, direction, (with == WITH_WINDOW ? THING_WINDOW : THING_CONTAINER));
 708                 else if (action == ACTION_MOVE) {
 709                         if (with == WITH_WINDOW)
 710                                 move_current_window(conn, direction);
 711                         else move_current_container(conn, direction);
 712                 }
 713                 else if (action == ACTION_SNAP)
 714                         snap_current_container(conn, direction);
 715
 716                 rest++;
 717         }
 718
 719         LOG("--- done ---\n");
 720 }