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++;
  81                 else if (direction == D_UP && cell_exists(current_col, current_row-1))
  82                         new_row--;
  83                 else {
  84                         /* Let’s see if there is a screen down/up there to which we can switch */
  85                         LOG("container is at %d with height %d\n", container->y, container->height);
  86                         i3Screen *screen;
  87                         int destination_y = (direction == D_UP ? (container->y - 1) : (container->y + container->height + 1));
  88                         if ((screen = get_screen_containing(container->x, destination_y)) == NULL) {
  89                                 LOG("Wrapping screen around vertically\n");
  90                                 /* No screen found? Then wrap */
  91                                 screen = get_screen_most((direction == D_UP ? D_DOWN : D_UP));
  92                         }
  93                         t_ws = &(workspaces[screen->current_workspace]);
  94                         new_row = (direction == D_UP ? (t_ws->rows - 1) : 0);
  95                 }
  96         } else if (direction == D_LEFT || direction == D_RIGHT) {
  97                 if (direction == D_RIGHT && cell_exists(current_col+1, current_row))
  98                         new_col++;
  99                 else if (direction == D_LEFT && cell_exists(current_col-1, current_row))
 100                         new_col--;
 101                 else {
 102                         /* Let’s see if there is a screen left/right here to which we can switch */
 103                         LOG("container is at %d with width %d\n", container->x, container->width);
 104                         i3Screen *screen;
 105                         int destination_x = (direction == D_LEFT ? (container->x - 1) : (container->x + container->width + 1));
 106                         if ((screen = get_screen_containing(destination_x, container->y)) == NULL) {
 107                                 LOG("Wrapping screen around horizontally\n");
 108                                 screen = get_screen_most((direction == D_LEFT ? D_RIGHT : D_LEFT));
 109                         }
 110                         t_ws = &(workspaces[screen->current_workspace]);
 111                         new_col = (direction == D_LEFT ? (t_ws->cols - 1) : 0);
 112                 }
 113         } else {
 114                 LOG("direction unhandled\n");
 115                 return;
 116         }
 117
 118         /* Bounds checking */
 119         if (new_col >= t_ws->cols)
 120                 new_col = (t_ws->cols - 1);
 121         if (new_row >= t_ws->rows)
 122                 new_row = (t_ws->rows - 1);
 123
 124         if (t_ws->table[new_col][new_row]->currently_focused != NULL)
 125                 set_focus(conn, t_ws->table[new_col][new_row]->currently_focused, true);
 126 }
 127
 128 /*
 129  * Tries to move the window inside its current container.
 130  *
 131  * Returns true if the window could be moved, false otherwise.
 132  *
 133  */
 134 static bool move_current_window_in_container(xcb_connection_t *conn, Client *client,
 135                 direction_t direction) {
 136         assert(client->container != NULL);
 137
 138         Client *other = (direction == D_UP ? CIRCLEQ_PREV(client, clients) :
 139                                              CIRCLEQ_NEXT(client, clients));
 140
 141         if (other == CIRCLEQ_END(&(client->container->clients)))
 142                 return false;
 143
 144         LOG("i can do that\n");
 145         /* We can move the client inside its current container */
 146         CIRCLEQ_REMOVE(&(client->container->clients), client, clients);
 147         if (direction == D_UP)
 148                 CIRCLEQ_INSERT_BEFORE(&(client->container->clients), other, client, clients);
 149         else CIRCLEQ_INSERT_AFTER(&(client->container->clients), other, client, clients);
 150         render_layout(conn);
 151         return true;
 152 }
 153
 154 /*
 155  * Moves the current window or whole container to the given direction, creating a column/row if
 156  * necessary.
 157  *
 158  */
 159 static void move_current_window(xcb_connection_t *conn, direction_t direction) {
 160         LOG("moving window to direction %s\n", (direction == D_UP ? "up" : (direction == D_DOWN ? "down" :
 161                                             (direction == D_LEFT ? "left" : "right"))));
 162         /* Get current window */
 163         Container *container = CUR_CELL,
 164                   *new = NULL;
 165
 166         /* There has to be a container, see focus_window() */
 167         assert(container != NULL);
 168
 169         /* If there is no window or the dock window is focused, we’re done */
 170         if (container->currently_focused == NULL ||
 171             container->currently_focused->dock)
 172                 return;
 173
 174         /* As soon as the client is moved away, the last focused client in the old
 175          * container needs to get focus, if any. Therefore, we save it here. */
 176         Client *current_client = container->currently_focused;
 177         Client *to_focus = get_last_focused_client(conn, container, current_client);
 178
 179         if (to_focus == NULL) {
 180                 to_focus = CIRCLEQ_NEXT_OR_NULL(&(container->clients), current_client, clients);
 181                 if (to_focus == NULL)
 182                         to_focus = CIRCLEQ_PREV_OR_NULL(&(container->clients), current_client, clients);
 183         }
 184
 185         switch (direction) {
 186                 case D_LEFT:
 187                         /* If we’re at the left-most position, move the rest of the table right */
 188                         if (current_col == 0) {
 189                                 expand_table_cols_at_head(c_ws);
 190                                 new = CUR_CELL;
 191                         } else
 192                                 new = CUR_TABLE[--current_col][current_row];
 193                         break;
 194                 case D_RIGHT:
 195                         if (current_col == (c_ws->cols-1))
 196                                 expand_table_cols(c_ws);
 197
 198                         new = CUR_TABLE[++current_col][current_row];
 199                         break;
 200                 case D_UP:
 201                         if (move_current_window_in_container(conn, current_client, D_UP))
 202                                 return;
 203
 204                         /* if we’re at the up-most position, move the rest of the table down */
 205                         if (current_row == 0) {
 206                                 expand_table_rows_at_head(c_ws);
 207                                 new = CUR_CELL;
 208                         } else
 209                                 new = CUR_TABLE[current_col][--current_row];
 210                         break;
 211                 case D_DOWN:
 212                         if (move_current_window_in_container(conn, current_client, D_DOWN))
 213                                 return;
 214
 215                         if (current_row == (c_ws->rows-1))
 216                                 expand_table_rows(c_ws);
 217
 218                         new = CUR_TABLE[current_col][++current_row];
 219                         break;
 220         }
 221
 222         /* Remove it from the old container and put it into the new one */
 223         remove_client_from_container(conn, current_client, container);
 224
 225         if (new->currently_focused != NULL)
 226                 CIRCLEQ_INSERT_AFTER(&(new->clients), new->currently_focused, current_client, clients);
 227         else CIRCLEQ_INSERT_TAIL(&(new->clients), current_client, clients);
 228         SLIST_INSERT_HEAD(&(new->workspace->focus_stack), current_client, focus_clients);
 229
 230         /* Update data structures */
 231         current_client->container = new;
 232         container->currently_focused = to_focus;
 233         new->currently_focused = current_client;
 234
 235         Workspace *workspace = container->workspace;
 236
 237         /* delete all empty columns/rows */
 238         cleanup_table(conn, workspace);
 239
 240         /* Fix colspan/rowspan if it’d overlap */
 241         fix_colrowspan(conn, workspace);
 242
 243         render_layout(conn);
 244
 245         set_focus(conn, current_client, true);
 246 }
 247
 248 static void move_current_container(xcb_connection_t *conn, direction_t direction) {
 249         LOG("moving container to direction %s\n", (direction == D_UP ? "up" : (direction == D_DOWN ? "down" :
 250                                             (direction == D_LEFT ? "left" : "right"))));
 251         /* Get current window */
 252         Container *container = CUR_CELL,
 253                   *new = NULL;
 254
 255         Container **old = &CUR_CELL;
 256
 257         /* There has to be a container, see focus_window() */
 258         assert(container != NULL);
 259
 260         switch (direction) {
 261                 case D_LEFT:
 262                         /* If we’re at the left-most position, move the rest of the table right */
 263                         if (current_col == 0) {
 264                                 expand_table_cols_at_head(c_ws);
 265                                 new = CUR_CELL;
 266                                 old = &CUR_TABLE[current_col+1][current_row];
 267                         } else
 268                                 new = CUR_TABLE[--current_col][current_row];
 269                         break;
 270                 case D_RIGHT:
 271                         if (current_col == (c_ws->cols-1))
 272                                 expand_table_cols(c_ws);
 273
 274                         new = CUR_TABLE[++current_col][current_row];
 275                         break;
 276                 case D_UP:
 277                         /* if we’re at the up-most position, move the rest of the table down */
 278                         if (current_row == 0) {
 279                                 expand_table_rows_at_head(c_ws);
 280                                 new = CUR_CELL;
 281                                 old = &CUR_TABLE[current_col][current_row+1];
 282                         } else
 283                                 new = CUR_TABLE[current_col][--current_row];
 284                         break;
 285                 case D_DOWN:
 286                         if (current_row == (c_ws->rows-1))
 287                                 expand_table_rows(c_ws);
 288
 289                         new = CUR_TABLE[current_col][++current_row];
 290                         break;
 291         }
 292
 293         LOG("old = %d,%d and new = %d,%d\n", container->col, container->row, new->col, new->row);
 294
 295         /* Swap the containers */
 296         int col = new->col;
 297         int row = new->row;
 298
 299         *old = new;
 300         new->col = container->col;
 301         new->row = container->row;
 302
 303         CUR_CELL = container;
 304         container->col = col;
 305         container->row = row;
 306
 307         Workspace *workspace = container->workspace;
 308
 309         /* delete all empty columns/rows */
 310         cleanup_table(conn, workspace);
 311
 312         /* Fix colspan/rowspan if it’d overlap */
 313         fix_colrowspan(conn, workspace);
 314
 315         render_layout(conn);
 316 }
 317
 318 /*
 319  * "Snaps" the current container (not possible for windows, because it works at table base)
 320  * to the given direction, that is, adjusts cellspan/rowspan
 321  *
 322  */
 323 static void snap_current_container(xcb_connection_t *conn, direction_t direction) {
 324         LOG("snapping container to direction %d\n", direction);
 325
 326         Container *container = CUR_CELL;
 327
 328         assert(container != NULL);
 329
 330         switch (direction) {
 331                 case D_LEFT:
 332                         /* Snap to the left is actually a move to the left and then a snap right */
 333                         if (!cell_exists(container->col - 1, container->row) ||
 334                                 CUR_TABLE[container->col-1][container->row]->currently_focused != NULL) {
 335                                 LOG("cannot snap to left - the cell is already used\n");
 336                                 return;
 337                         }
 338
 339                         move_current_window(conn, D_LEFT);
 340                         snap_current_container(conn, D_RIGHT);
 341                         return;
 342                 case D_RIGHT: {
 343                         /* Check if the cell is used */
 344                         int new_col = container->col + container->colspan;
 345                         if (!cell_exists(new_col, container->row) ||
 346                                 CUR_TABLE[new_col][container->row]->currently_focused != NULL) {
 347                                 LOG("cannot snap to right - the cell is already used\n");
 348                                 return;
 349                         }
 350
 351                         /* Check if there are other cells with rowspan, which are in our way.
 352                          * If so, reduce their rowspan. */
 353                         for (int i = container->row-1; i >= 0; i--) {
 354                                 LOG("we got cell %d, %d with rowspan %d\n",
 355                                                 new_col, i, CUR_TABLE[new_col][i]->rowspan);
 356                                 while ((CUR_TABLE[new_col][i]->rowspan-1) >= (container->row - i))
 357                                         CUR_TABLE[new_col][i]->rowspan--;
 358                                 LOG("new rowspan = %d\n", CUR_TABLE[new_col][i]->rowspan);
 359                         }
 360
 361                         container->colspan++;
 362                         break;
 363                 }
 364                 case D_UP:
 365                         if (!cell_exists(container->col, container->row - 1) ||
 366                                 CUR_TABLE[container->col][container->row-1]->currently_focused != NULL) {
 367                                 LOG("cannot snap to top - the cell is already used\n");
 368                                 return;
 369                         }
 370
 371                         move_current_window(conn, D_UP);
 372                         snap_current_container(conn, D_DOWN);
 373                         return;
 374                 case D_DOWN: {
 375                         LOG("snapping down\n");
 376                         int new_row = container->row + container->rowspan;
 377                         if (!cell_exists(container->col, new_row) ||
 378                                 CUR_TABLE[container->col][new_row]->currently_focused != NULL) {
 379                                 LOG("cannot snap down - the cell is already used\n");
 380                                 return;
 381                         }
 382
 383                         for (int i = container->col-1; i >= 0; i--) {
 384                                 LOG("we got cell %d, %d with colspan %d\n",
 385                                                 i, new_row, CUR_TABLE[i][new_row]->colspan);
 386                                 while ((CUR_TABLE[i][new_row]->colspan-1) >= (container->col - i))
 387                                         CUR_TABLE[i][new_row]->colspan--;
 388                                 LOG("new colspan = %d\n", CUR_TABLE[i][new_row]->colspan);
 389
 390                         }
 391
 392                         container->rowspan++;
 393                         break;
 394                 }
 395         }
 396
 397         render_layout(conn);
 398 }
 399
 400 /*
 401  * Moves the currently selected window to the given workspace
 402  *
 403  */
 404 static void move_current_window_to_workspace(xcb_connection_t *conn, int workspace) {
 405         LOG("Moving current window to workspace %d\n", workspace);
 406
 407         Container *container = CUR_CELL;
 408
 409         assert(container != NULL);
 410
 411         /* t_ws (to workspace) is just a container pointer to the workspace we’re switching to */
 412         Workspace *t_ws = &(workspaces[workspace-1]);
 413
 414         Client *current_client = container->currently_focused;
 415         if (current_client == NULL) {
 416                 LOG("No currently focused client in current container.\n");
 417                 return;
 418         }
 419         Client *to_focus = CIRCLEQ_NEXT_OR_NULL(&(container->clients), current_client, clients);
 420         if (to_focus == NULL)
 421                 to_focus = CIRCLEQ_PREV_OR_NULL(&(container->clients), current_client, clients);
 422
 423         if (t_ws->screen == NULL) {
 424                 LOG("initializing new workspace, setting num to %d\n", workspace-1);
 425                 t_ws->screen = container->workspace->screen;
 426                 /* Copy the dimensions from the virtual screen */
 427                 memcpy(&(t_ws->rect), &(container->workspace->screen->rect), sizeof(Rect));
 428         } else {
 429                 /* Check if there is already a fullscreen client on the destination workspace and
 430                  * stop moving if so. */
 431                 if (current_client->fullscreen && (t_ws->fullscreen_client != NULL)) {
 432                         LOG("Not moving: Fullscreen client already existing on destination workspace.\n");
 433                         return;
 434                 }
 435         }
 436
 437         Container *to_container = t_ws->table[t_ws->current_col][t_ws->current_row];
 438
 439         assert(to_container != NULL);
 440
 441         remove_client_from_container(conn, current_client, container);
 442         if (container->workspace->fullscreen_client == current_client)
 443                 container->workspace->fullscreen_client = NULL;
 444
 445         CIRCLEQ_INSERT_TAIL(&(to_container->clients), current_client, clients);
 446         SLIST_INSERT_HEAD(&(to_container->workspace->focus_stack), current_client, focus_clients);
 447         if (current_client->fullscreen)
 448                 t_ws->fullscreen_client = current_client;
 449         LOG("Moved.\n");
 450
 451         current_client->container = to_container;
 452         container->currently_focused = to_focus;
 453         to_container->currently_focused = current_client;
 454
 455         /* If we’re moving it to an invisible screen, we need to unmap it */
 456         if (to_container->workspace->screen->current_workspace != to_container->workspace->num) {
 457                 LOG("This workspace is not visible, unmapping\n");
 458                 xcb_unmap_window(conn, current_client->frame);
 459         }
 460
 461         /* delete all empty columns/rows */
 462         cleanup_table(conn, container->workspace);
 463
 464         render_layout(conn);
 465 }
 466
 467 /*
 468  * Switches to the given workspace
 469  *
 470  */
 471 void show_workspace(xcb_connection_t *conn, int workspace) {
 472         Client *client;
 473         bool need_warp = false;
 474         xcb_window_t root = xcb_setup_roots_iterator(xcb_get_setup(conn)).data->root;
 475         /* t_ws (to workspace) is just a convenience pointer to the workspace we’re switching to */
 476         Workspace *t_ws = &(workspaces[workspace-1]);
 477
 478         LOG("show_workspace(%d)\n", workspace);
 479
 480         /* Store current_row/current_col */
 481         c_ws->current_row = current_row;
 482         c_ws->current_col = current_col;
 483
 484         /* Check if the workspace has not been used yet */
 485         if (t_ws->screen == NULL) {
 486                 LOG("initializing new workspace, setting num to %d\n", workspace);
 487                 t_ws->screen = c_ws->screen;
 488                 /* Copy the dimensions from the virtual screen */
 489                 memcpy(&(t_ws->rect), &(t_ws->screen->rect), sizeof(Rect));
 490         }
 491
 492         if (c_ws->screen != t_ws->screen) {
 493                 /* We need to switch to the other screen first */
 494                 LOG("moving over to other screen.\n");
 495
 496                 /* Store the old client */
 497                 Client *old_client = CUR_CELL->currently_focused;
 498
 499                 c_ws = &(workspaces[t_ws->screen->current_workspace]);
 500                 current_col = c_ws->current_col;
 501                 current_row = c_ws->current_row;
 502                 if (CUR_CELL->currently_focused != NULL)
 503                         need_warp = true;
 504                 else {
 505                         Rect *dims = &(c_ws->screen->rect);
 506                         xcb_warp_pointer(conn, XCB_NONE, root, 0, 0, 0, 0,
 507                                          dims->x + (dims->width / 2), dims->y + (dims->height / 2));
 508                 }
 509
 510                 /* Re-decorate the old client, it’s not focused anymore */
 511                 if ((old_client != NULL) && !old_client->dock)
 512                         redecorate_window(conn, old_client);
 513                 else xcb_flush(conn);
 514         }
 515
 516         /* Check if we need to change something or if we’re already there */
 517         if (c_ws->screen->current_workspace == (workspace-1)) {
 518                 if (CUR_CELL->currently_focused != NULL) {
 519                         set_focus(conn, CUR_CELL->currently_focused, true);
 520                         if (need_warp) {
 521                                 warp_pointer_into(conn, CUR_CELL->currently_focused);
 522                                 xcb_flush(conn);
 523                         }
 524                 }
 525                 return;
 526         }
 527
 528         t_ws->screen->current_workspace = workspace-1;
 529
 530         /* TODO: does grabbing the server actually bring us any (speed)advantages? */
 531         //xcb_grab_server(conn);
 532
 533         ignore_enter_notify_forall(conn, c_ws, true);
 534
 535         /* Unmap all clients of the current workspace */
 536         int unmapped_clients = 0;
 537         FOR_TABLE(c_ws)
 538                 CIRCLEQ_FOREACH(client, &(c_ws->table[cols][rows]->clients), clients) {
 539                         xcb_unmap_window(conn, client->frame);
 540                         unmapped_clients++;
 541                 }
 542
 543         /* If we did not unmap any clients, the workspace is empty and we can destroy it */
 544         if (unmapped_clients == 0)
 545                 c_ws->screen = NULL;
 546
 547         /* Unmap the stack windows on the current workspace, if any */
 548         struct Stack_Window *stack_win;
 549         SLIST_FOREACH(stack_win, &stack_wins, stack_windows)
 550                 if (stack_win->container->workspace == c_ws)
 551                         xcb_unmap_window(conn, stack_win->window);
 552
 553         ignore_enter_notify_forall(conn, c_ws, false);
 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         SLIST_FOREACH(stack_win, &stack_wins, stack_windows)
 569                 if (stack_win->container->workspace == c_ws)
 570                         xcb_map_window(conn, stack_win->window);
 571
 572         ignore_enter_notify_forall(conn, c_ws, false);
 573
 574         /* Restore focus on the new workspace */
 575         if (CUR_CELL->currently_focused != NULL) {
 576                 set_focus(conn, CUR_CELL->currently_focused, true);
 577                 if (need_warp) {
 578                         warp_pointer_into(conn, CUR_CELL->currently_focused);
 579                         xcb_flush(conn);
 580                 }
 581         } else xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, root, XCB_CURRENT_TIME);
 582
 583         //xcb_ungrab_server(conn);
 584
 585         render_layout(conn);
 586 }
 587
 588 /*
 589  * Parses a command, see file CMDMODE for more information
 590  *
 591  */
 592 void parse_command(xcb_connection_t *conn, const char *command) {
 593         LOG("--- parsing command \"%s\" ---\n", command);
 594         /* Hmm, just to be sure */
 595         if (command[0] == '\0')
 596                 return;
 597
 598         /* Is it an <exec>? Then execute the given command. */
 599         if (STARTS_WITH(command, "exec ")) {
 600                 LOG("starting \"%s\"\n", command + strlen("exec "));
 601                 start_application(command+strlen("exec "));
 602                 return;
 603         }
 604
 605         /* Is it an <exit>? */
 606         if (STARTS_WITH(command, "exit")) {
 607                 LOG("User issued exit-command, exiting without error.\n");
 608                 exit(EXIT_SUCCESS);
 609         }
 610
 611         /* Is it <restart>? Then restart in place. */
 612         if (STARTS_WITH(command, "restart")) {
 613                 LOG("restarting \"%s\"...\n", start_argv[0]);
 614                 execvp(start_argv[0], start_argv);
 615                 /* not reached */
 616         }
 617
 618         if (STARTS_WITH(command, "kill")) {
 619                 if (CUR_CELL->currently_focused == NULL) {
 620                         LOG("There is no window to kill\n");
 621                         return;
 622                 }
 623
 624                 LOG("Killing current window\n");
 625                 kill_window(conn, CUR_CELL->currently_focused);
 626                 return;
 627         }
 628
 629         /* Is it 'f' for fullscreen? */
 630         if (command[0] == 'f') {
 631                 if (CUR_CELL->currently_focused == NULL)
 632                         return;
 633                 toggle_fullscreen(conn, CUR_CELL->currently_focused);
 634                 return;
 635         }
 636
 637         /* Is it just 's' for stacking or 'd' for default? */
 638         if ((command[0] == 's' || command[0] == 'd') && (command[1] == '\0')) {
 639                 LOG("Switching mode for current container\n");
 640                 switch_layout_mode(conn, CUR_CELL, (command[0] == 's' ? MODE_STACK : MODE_DEFAULT));
 641                 return;
 642         }
 643
 644         enum { WITH_WINDOW, WITH_CONTAINER } with = WITH_WINDOW;
 645
 646         /* Is it a <with>? */
 647         if (command[0] == 'w') {
 648                 command++;
 649                 /* TODO: implement */
 650                 if (command[0] == 'c') {
 651                         with = WITH_CONTAINER;
 652                         command++;
 653                 } else {
 654                         LOG("not yet implemented.\n");
 655                         return;
 656                 }
 657         }
 658
 659         /* It's a normal <cmd> */
 660         char *rest = NULL;
 661         enum { ACTION_FOCUS, ACTION_MOVE, ACTION_SNAP } action = ACTION_FOCUS;
 662         direction_t direction;
 663         int times = strtol(command, &rest, 10);
 664         if (rest == NULL) {
 665                 LOG("Invalid command (\"%s\")\n", command);
 666                 return;
 667         }
 668
 669         if (*rest == '\0') {
 670                 /* No rest? This was a tag number, not a times specification */
 671                 show_workspace(conn, times);
 672                 return;
 673         }
 674
 675         if (*rest == 'm' || *rest == 's') {
 676                 action = (*rest == 'm' ? ACTION_MOVE : ACTION_SNAP);
 677                 rest++;
 678         }
 679
 680         int workspace = strtol(rest, &rest, 10);
 681
 682         if (rest == NULL) {
 683                 LOG("Invalid command (\"%s\")\n", command);
 684                 return;
 685         }
 686
 687         if (*rest == '\0') {
 688                 move_current_window_to_workspace(conn, workspace);
 689                 return;
 690         }
 691
 692         /* Now perform action to <where> */
 693         while (*rest != '\0') {
 694                 if (*rest == 'h')
 695                         direction = D_LEFT;
 696                 else if (*rest == 'j')
 697                         direction = D_DOWN;
 698                 else if (*rest == 'k')
 699                         direction = D_UP;
 700                 else if (*rest == 'l')
 701                         direction = D_RIGHT;
 702                 else {
 703                         LOG("unknown direction: %c\n", *rest);
 704                         return;
 705                 }
 706
 707                 if (action == ACTION_FOCUS)
 708                         focus_thing(conn, direction, (with == WITH_WINDOW ? THING_WINDOW : THING_CONTAINER));
 709                 else if (action == ACTION_MOVE) {
 710                         if (with == WITH_WINDOW)
 711                                 move_current_window(conn, direction);
 712                         else move_current_container(conn, direction);
 713                 }
 714                 else if (action == ACTION_SNAP)
 715                         snap_current_container(conn, direction);
 716
 717                 rest++;
 718         }
 719
 720         LOG("--- done ---\n");
 721 }