git.sur5r.net Git - i3/i3/blob - src/cmdparse.y

   1 %{
   2 /*
   3  * vim:ts=4:sw=4:expandtab
   4  *
   5  * i3 - an improved dynamic tiling window manager
   6  * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
   7  *
   8  * cmdparse.y: the parser for commands you send to i3 (or bind on keys)
   9  *
  10  */
  11 #include <sys/types.h>
  12 #include <sys/stat.h>
  13 #include <unistd.h>
  14 #include <fcntl.h>
  15 #include <float.h>
  16
  17 #include "all.h"
  18
  19 /** When the command did not include match criteria (!), we use the currently
  20  * focused command. Do not confuse this case with a command which included
  21  * criteria but which did not match any windows. This macro has to be called in
  22  * every command.
  23  */
  24 #define HANDLE_EMPTY_MATCH do { \
  25     if (match_is_empty(&current_match)) { \
  26         owindow *ow = smalloc(sizeof(owindow)); \
  27         ow->con = focused; \
  28         TAILQ_INIT(&owindows); \
  29         TAILQ_INSERT_TAIL(&owindows, ow, owindows); \
  30     } \
  31 } while (0)
  32
  33 typedef struct yy_buffer_state *YY_BUFFER_STATE;
  34 extern int cmdyylex(struct context *context);
  35 extern int cmdyyparse(void);
  36 extern int cmdyylex_destroy(void);
  37 extern FILE *cmdyyin;
  38 YY_BUFFER_STATE cmdyy_scan_string(const char *);
  39
  40 static struct context *context;
  41 static Match current_match;
  42
  43 /*
  44  * Helper data structure for an operation window (window on which the operation
  45  * will be performed). Used to build the TAILQ owindows.
  46  *
  47  */
  48 typedef struct owindow {
  49     Con *con;
  50     TAILQ_ENTRY(owindow) owindows;
  51 } owindow;
  52 static TAILQ_HEAD(owindows_head, owindow) owindows;
  53
  54 /* Holds the JSON which will be returned via IPC or NULL for the default return
  55  * message */
  56 static char *json_output;
  57
  58 /* We don’t need yydebug for now, as we got decent error messages using
  59  * yyerror(). Should you ever want to extend the parser, it might be handy
  60  * to just comment it in again, so it stays here. */
  61 //int cmdyydebug = 1;
  62
  63 void cmdyyerror(const char *error_message) {
  64     ELOG("\n");
  65     ELOG("CMD: %s\n", error_message);
  66     ELOG("CMD: in command:\n");
  67     ELOG("CMD:   %s\n", context->line_copy);
  68     ELOG("CMD:   ");
  69     for (int c = 1; c <= context->last_column; c++)
  70         if (c >= context->first_column)
  71                 printf("^");
  72         else printf(" ");
  73     printf("\n");
  74     ELOG("\n");
  75     context->compact_error = sstrdup(error_message);
  76 }
  77
  78 int cmdyywrap() {
  79     return 1;
  80 }
  81
  82 char *parse_cmd(const char *new) {
  83     json_output = NULL;
  84     LOG("COMMAND: *%s*\n", new);
  85     cmdyy_scan_string(new);
  86
  87     match_init(&current_match);
  88     context = scalloc(sizeof(struct context));
  89     context->filename = "cmd";
  90     if (cmdyyparse() != 0) {
  91         fprintf(stderr, "Could not parse command\n");
  92         sasprintf(&json_output, "{\"success\":false, \"error\":\"%s at position %d\"}",
  93                   context->compact_error, context->first_column);
  94         FREE(context->line_copy);
  95         FREE(context->compact_error);
  96         free(context);
  97         return json_output;
  98     }
  99     printf("done, json output = %s\n", json_output);
 100
 101     cmdyylex_destroy();
 102     FREE(context->line_copy);
 103     FREE(context->compact_error);
 104     free(context);
 105     return json_output;
 106 }
 107
 108 /*
 109  * Returns true if a is definitely greater than b (using the given epsilon)
 110  *
 111  */
 112 bool definitelyGreaterThan(float a, float b, float epsilon) {
 113     return (a - b) > ( (fabs(a) < fabs(b) ? fabs(b) : fabs(a)) * epsilon);
 114 }
 115
 116 %}
 117
 118 %error-verbose
 119 %lex-param { struct context *context }
 120
 121 %union {
 122     char *string;
 123     char chr;
 124     int number;
 125 }
 126
 127 %token              TOK_EXEC            "exec"
 128 %token              TOK_EXIT            "exit"
 129 %token              TOK_RELOAD          "reload"
 130 %token              TOK_RESTART         "restart"
 131 %token              TOK_KILL            "kill"
 132 %token              TOK_WINDOW          "window"
 133 %token              TOK_CLIENT          "client"
 134 %token              TOK_FULLSCREEN      "fullscreen"
 135 %token              TOK_GLOBAL          "global"
 136 %token              TOK_LAYOUT          "layout"
 137 %token              TOK_DEFAULT         "default"
 138 %token              TOK_STACKED         "stacked"
 139 %token              TOK_TABBED          "tabbed"
 140 %token              TOK_BORDER          "border"
 141 %token              TOK_NORMAL          "normal"
 142 %token              TOK_NONE            "none"
 143 %token              TOK_1PIXEL          "1pixel"
 144 %token              TOK_MODE            "mode"
 145 %token              TOK_TILING          "tiling"
 146 %token              TOK_FLOATING        "floating"
 147 %token              TOK_MODE_TOGGLE     "mode_toggle"
 148 %token              TOK_ENABLE          "enable"
 149 %token              TOK_DISABLE         "disable"
 150 %token              TOK_WORKSPACE       "workspace"
 151 %token              TOK_OUTPUT          "output"
 152 %token              TOK_TOGGLE          "toggle"
 153 %token              TOK_FOCUS           "focus"
 154 %token              TOK_MOVE            "move"
 155 %token              TOK_OPEN            "open"
 156 %token              TOK_NEXT            "next"
 157 %token              TOK_PREV            "prev"
 158 %token              TOK_SPLIT           "split"
 159 %token              TOK_HORIZONTAL      "horizontal"
 160 %token              TOK_VERTICAL        "vertical"
 161 %token              TOK_UP              "up"
 162 %token              TOK_DOWN            "down"
 163 %token              TOK_LEFT            "left"
 164 %token              TOK_RIGHT           "right"
 165 %token              TOK_PARENT          "parent"
 166 %token              TOK_CHILD           "child"
 167 %token              TOK_APPEND_LAYOUT   "append_layout"
 168 %token              TOK_MARK            "mark"
 169 %token              TOK_RESIZE          "resize"
 170 %token              TOK_GROW            "grow"
 171 %token              TOK_SHRINK          "shrink"
 172 %token              TOK_PX              "px"
 173 %token              TOK_OR              "or"
 174 %token              TOK_PPT             "ppt"
 175 %token              TOK_NOP             "nop"
 176 %token              TOK_BACK_AND_FORTH  "back_and_forth"
 177 %token              TOK_NO_STARTUP_ID   "--no-startup-id"
 178
 179 %token              TOK_CLASS           "class"
 180 %token              TOK_INSTANCE        "instance"
 181 %token              TOK_WINDOW_ROLE     "window_role"
 182 %token              TOK_ID              "id"
 183 %token              TOK_CON_ID          "con_id"
 184 %token              TOK_TITLE           "title"
 185
 186 %token  <string>    STR                 "<string>"
 187 %token  <number>    NUMBER              "<number>"
 188
 189 %type   <number>    direction
 190 %type   <number>    split_direction
 191 %type   <number>    fullscreen_mode
 192 %type   <number>    level
 193 %type   <number>    window_mode
 194 %type   <number>    boolean
 195 %type   <number>    border_style
 196 %type   <number>    layout_mode
 197 %type   <number>    resize_px
 198 %type   <number>    resize_way
 199 %type   <number>    resize_tiling
 200 %type   <number>    optional_kill_mode
 201 %type   <number>    optional_no_startup_id
 202
 203 %%
 204
 205 commands:
 206     commands ';' command
 207     | command
 208     {
 209         owindow *current;
 210
 211         printf("single command completely parsed, dropping state...\n");
 212         while (!TAILQ_EMPTY(&owindows)) {
 213             current = TAILQ_FIRST(&owindows);
 214             TAILQ_REMOVE(&owindows, current, owindows);
 215             free(current);
 216         }
 217         match_init(&current_match);
 218     }
 219     ;
 220
 221 command:
 222     match operations
 223     ;
 224
 225 match:
 226     | matchstart criteria matchend
 227     {
 228         printf("match parsed\n");
 229     }
 230     ;
 231
 232 matchstart:
 233     '['
 234     {
 235         printf("start\n");
 236         match_init(&current_match);
 237         TAILQ_INIT(&owindows);
 238         /* copy all_cons */
 239         Con *con;
 240         TAILQ_FOREACH(con, &all_cons, all_cons) {
 241             owindow *ow = smalloc(sizeof(owindow));
 242             ow->con = con;
 243             TAILQ_INSERT_TAIL(&owindows, ow, owindows);
 244         }
 245     }
 246     ;
 247
 248 matchend:
 249     ']'
 250     {
 251         owindow *next, *current;
 252
 253         printf("match specification finished, matching...\n");
 254         /* copy the old list head to iterate through it and start with a fresh
 255          * list which will contain only matching windows */
 256         struct owindows_head old = owindows;
 257         TAILQ_INIT(&owindows);
 258         for (next = TAILQ_FIRST(&old); next != TAILQ_END(&old);) {
 259             /* make a copy of the next pointer and advance the pointer to the
 260              * next element as we are going to invalidate the element’s
 261              * next/prev pointers by calling TAILQ_INSERT_TAIL later */
 262             current = next;
 263             next = TAILQ_NEXT(next, owindows);
 264
 265             printf("checking if con %p / %s matches\n", current->con, current->con->name);
 266             if (current_match.con_id != NULL) {
 267                 if (current_match.con_id == current->con) {
 268                     printf("matches container!\n");
 269                     TAILQ_INSERT_TAIL(&owindows, current, owindows);
 270
 271                 }
 272             } else if (current_match.mark != NULL && current->con->mark != NULL &&
 273                        regex_matches(current_match.mark, current->con->mark)) {
 274                 printf("match by mark\n");
 275                 TAILQ_INSERT_TAIL(&owindows, current, owindows);
 276             } else {
 277                 if (current->con->window == NULL)
 278                     continue;
 279                 if (match_matches_window(&current_match, current->con->window)) {
 280                     printf("matches window!\n");
 281                     TAILQ_INSERT_TAIL(&owindows, current, owindows);
 282                 } else {
 283                     printf("doesnt match\n");
 284                     free(current);
 285                 }
 286             }
 287         }
 288
 289         TAILQ_FOREACH(current, &owindows, owindows) {
 290             printf("matching: %p / %s\n", current->con, current->con->name);
 291         }
 292
 293     }
 294     ;
 295
 296 criteria:
 297     criteria criterion
 298     | criterion
 299     ;
 300
 301 criterion:
 302     TOK_CLASS '=' STR
 303     {
 304         printf("criteria: class = %s\n", $3);
 305         current_match.class = regex_new($3);
 306         free($3);
 307     }
 308     | TOK_INSTANCE '=' STR
 309     {
 310         printf("criteria: instance = %s\n", $3);
 311         current_match.instance = regex_new($3);
 312         free($3);
 313     }
 314     | TOK_WINDOW_ROLE '=' STR
 315     {
 316         printf("criteria: window_role = %s\n", $3);
 317         current_match.role = regex_new($3);
 318         free($3);
 319     }
 320     | TOK_CON_ID '=' STR
 321     {
 322         printf("criteria: id = %s\n", $3);
 323         char *end;
 324         long parsed = strtol($3, &end, 10);
 325         if (parsed == LONG_MIN ||
 326             parsed == LONG_MAX ||
 327             parsed < 0 ||
 328             (end && *end != '\0')) {
 329             ELOG("Could not parse con id \"%s\"\n", $3);
 330         } else {
 331             current_match.con_id = (Con*)parsed;
 332             printf("id as int = %p\n", current_match.con_id);
 333         }
 334     }
 335     | TOK_ID '=' STR
 336     {
 337         printf("criteria: window id = %s\n", $3);
 338         char *end;
 339         long parsed = strtol($3, &end, 10);
 340         if (parsed == LONG_MIN ||
 341             parsed == LONG_MAX ||
 342             parsed < 0 ||
 343             (end && *end != '\0')) {
 344             ELOG("Could not parse window id \"%s\"\n", $3);
 345         } else {
 346             current_match.id = parsed;
 347             printf("window id as int = %d\n", current_match.id);
 348         }
 349     }
 350     | TOK_MARK '=' STR
 351     {
 352         printf("criteria: mark = %s\n", $3);
 353         current_match.mark = regex_new($3);
 354         free($3);
 355     }
 356     | TOK_TITLE '=' STR
 357     {
 358         printf("criteria: title = %s\n", $3);
 359         current_match.title = regex_new($3);
 360         free($3);
 361     }
 362     ;
 363
 364 operations:
 365     operation
 366     | operations ',' operation
 367     ;
 368
 369 operation:
 370     exec
 371     | exit
 372     | restart
 373     | reload
 374     | border
 375     | layout
 376     | append_layout
 377     | move
 378     | workspace
 379     | focus
 380     | kill
 381     | open
 382     | fullscreen
 383     | split
 384     | floating
 385     | mark
 386     | resize
 387     | nop
 388     | mode
 389     ;
 390
 391 exec:
 392     TOK_EXEC optional_no_startup_id STR
 393     {
 394         char *command = $3;
 395         bool no_startup_id = $2;
 396
 397         printf("should execute %s, no_startup_id = %d\n", command, no_startup_id);
 398         start_application(command, no_startup_id);
 399         free($3);
 400     }
 401     ;
 402
 403 optional_no_startup_id:
 404     /* empty */ { $$ = false; }
 405     | TOK_NO_STARTUP_ID  { $$ = true; }
 406     ;
 407
 408 exit:
 409     TOK_EXIT
 410     {
 411         printf("exit, bye bye\n");
 412         exit(0);
 413     }
 414     ;
 415
 416 reload:
 417     TOK_RELOAD
 418     {
 419         printf("reloading\n");
 420         kill_configerror_nagbar(false);
 421         load_configuration(conn, NULL, true);
 422         x_set_i3_atoms();
 423         /* Send an IPC event just in case the ws names have changed */
 424         ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"reload\"}");
 425     }
 426     ;
 427
 428 restart:
 429     TOK_RESTART
 430     {
 431         printf("restarting i3\n");
 432         i3_restart(false);
 433     }
 434     ;
 435
 436 focus:
 437     TOK_FOCUS
 438     {
 439         owindow *current;
 440
 441         if (match_is_empty(&current_match)) {
 442             ELOG("You have to specify which window/container should be focused.\n");
 443             ELOG("Example: [class=\"urxvt\" title=\"irssi\"] focus\n");
 444
 445             sasprintf(&json_output, "{\"success\":false, \"error\":\"You have to "
 446                       "specify which window/container should be focused\"}");
 447             break;
 448         }
 449
 450         int count = 0;
 451         TAILQ_FOREACH(current, &owindows, owindows) {
 452             Con *ws = con_get_workspace(current->con);
 453             /* If no workspace could be found, this was a dock window.
 454              * Just skip it, you cannot focus dock windows. */
 455             if (!ws)
 456                 continue;
 457
 458             /* If the container is not on the current workspace,
 459              * workspace_show() will switch to a different workspace and (if
 460              * enabled) trigger a mouse pointer warp to the currently focused
 461              * container (!) on the target workspace.
 462              *
 463              * Therefore, before calling workspace_show(), we make sure that
 464              * 'current' will be focused on the workspace. However, we cannot
 465              * just con_focus(current) because then the pointer will not be
 466              * warped at all (the code thinks we are already there).
 467              *
 468              * So we focus 'current' to make it the currently focused window of
 469              * the target workspace, then revert focus. */
 470             Con *currently_focused = focused;
 471             con_focus(current->con);
 472             con_focus(currently_focused);
 473
 474             /* Now switch to the workspace, then focus */
 475             workspace_show(ws);
 476             LOG("focusing %p / %s\n", current->con, current->con->name);
 477             con_focus(current->con);
 478             count++;
 479         }
 480
 481         if (count > 1)
 482             LOG("WARNING: Your criteria for the focus command matches %d containers, "
 483                 "while only exactly one container can be focused at a time.\n", count);
 484
 485         tree_render();
 486     }
 487     | TOK_FOCUS direction
 488     {
 489         int direction = $2;
 490         switch (direction) {
 491             case TOK_LEFT:
 492                 LOG("Focusing left\n");
 493                 tree_next('p', HORIZ);
 494                 break;
 495             case TOK_RIGHT:
 496                 LOG("Focusing right\n");
 497                 tree_next('n', HORIZ);
 498                 break;
 499             case TOK_UP:
 500                 LOG("Focusing up\n");
 501                 tree_next('p', VERT);
 502                 break;
 503             case TOK_DOWN:
 504                 LOG("Focusing down\n");
 505                 tree_next('n', VERT);
 506                 break;
 507             default:
 508                 ELOG("Invalid focus direction (%d)\n", direction);
 509                 break;
 510         }
 511
 512         tree_render();
 513     }
 514     | TOK_FOCUS window_mode
 515     {
 516         printf("should focus: ");
 517
 518         if ($2 == TOK_TILING)
 519             printf("tiling\n");
 520         else if ($2 == TOK_FLOATING)
 521             printf("floating\n");
 522         else printf("mode toggle\n");
 523
 524         Con *ws = con_get_workspace(focused);
 525         Con *current;
 526         if (ws != NULL) {
 527             int to_focus = $2;
 528             if ($2 == TOK_MODE_TOGGLE) {
 529                 current = TAILQ_FIRST(&(ws->focus_head));
 530                 if (current != NULL && current->type == CT_FLOATING_CON)
 531                     to_focus = TOK_TILING;
 532                 else to_focus = TOK_FLOATING;
 533             }
 534             TAILQ_FOREACH(current, &(ws->focus_head), focused) {
 535                 if ((to_focus == TOK_FLOATING && current->type != CT_FLOATING_CON) ||
 536                     (to_focus == TOK_TILING && current->type == CT_FLOATING_CON))
 537                     continue;
 538
 539                 con_focus(con_descend_focused(current));
 540                 break;
 541             }
 542         }
 543
 544         tree_render();
 545     }
 546     | TOK_FOCUS level
 547     {
 548         if ($2 == TOK_PARENT)
 549             level_up();
 550         else level_down();
 551
 552         tree_render();
 553     }
 554     ;
 555
 556 window_mode:
 557     TOK_TILING        { $$ = TOK_TILING; }
 558     | TOK_FLOATING    { $$ = TOK_FLOATING; }
 559     | TOK_MODE_TOGGLE { $$ = TOK_MODE_TOGGLE; }
 560     ;
 561
 562 level:
 563     TOK_PARENT  { $$ = TOK_PARENT; }
 564     | TOK_CHILD { $$ = TOK_CHILD;  }
 565     ;
 566
 567 kill:
 568     TOK_KILL optional_kill_mode
 569     {
 570         owindow *current;
 571
 572         printf("killing!\n");
 573         /* check if the match is empty, not if the result is empty */
 574         if (match_is_empty(&current_match))
 575             tree_close_con($2);
 576         else {
 577             TAILQ_FOREACH(current, &owindows, owindows) {
 578                 printf("matching: %p / %s\n", current->con, current->con->name);
 579                 tree_close(current->con, $2, false, false);
 580             }
 581         }
 582
 583         tree_render();
 584     }
 585     ;
 586
 587 optional_kill_mode:
 588     /* empty */             { $$ = KILL_WINDOW; }
 589     | TOK_WINDOW { $$ = KILL_WINDOW; }
 590     | TOK_CLIENT { $$ = KILL_CLIENT; }
 591     ;
 592
 593 workspace:
 594     TOK_WORKSPACE TOK_NEXT
 595     {
 596         workspace_show(workspace_next());
 597         tree_render();
 598     }
 599     | TOK_WORKSPACE TOK_PREV
 600     {
 601         workspace_show(workspace_prev());
 602         tree_render();
 603     }
 604     | TOK_WORKSPACE TOK_BACK_AND_FORTH
 605     {
 606         workspace_back_and_forth();
 607         tree_render();
 608     }
 609     | TOK_WORKSPACE STR
 610     {
 611         printf("should switch to workspace %s\n", $2);
 612
 613         Con *ws = con_get_workspace(focused);
 614
 615         /* Check if the command wants to switch to the current workspace */
 616         if (strcmp(ws->name, $2) == 0) {
 617             printf("This workspace is already focused.\n");
 618             if (config.workspace_auto_back_and_forth) {
 619                 workspace_back_and_forth();
 620                 free($2);
 621                 tree_render();
 622             }
 623             break;
 624         }
 625
 626         workspace_show_by_name($2);
 627         free($2);
 628
 629         tree_render();
 630     }
 631     ;
 632
 633 open:
 634     TOK_OPEN
 635     {
 636         printf("opening new container\n");
 637         Con *con = tree_open_con(NULL, NULL);
 638         con_focus(con);
 639         sasprintf(&json_output, "{\"success\":true, \"id\":%ld}", (long int)con);
 640
 641         tree_render();
 642     }
 643     ;
 644
 645 fullscreen:
 646     TOK_FULLSCREEN fullscreen_mode
 647     {
 648         printf("toggling fullscreen, mode = %s\n", ($2 == CF_OUTPUT ? "normal" : "global"));
 649         owindow *current;
 650
 651         HANDLE_EMPTY_MATCH;
 652
 653         TAILQ_FOREACH(current, &owindows, owindows) {
 654             printf("matching: %p / %s\n", current->con, current->con->name);
 655             con_toggle_fullscreen(current->con, $2);
 656         }
 657
 658         tree_render();
 659     }
 660     ;
 661
 662 fullscreen_mode:
 663     /* empty */  { $$ = CF_OUTPUT; }
 664     | TOK_GLOBAL { $$ = CF_GLOBAL; }
 665     ;
 666
 667 split:
 668     TOK_SPLIT split_direction
 669     {
 670         /* TODO: use matches */
 671         printf("splitting in direction %c\n", $2);
 672         tree_split(focused, ($2 == 'v' ? VERT : HORIZ));
 673
 674         tree_render();
 675     }
 676     ;
 677
 678 split_direction:
 679     TOK_HORIZONTAL  { $$ = 'h'; }
 680     | 'h'           { $$ = 'h'; }
 681     | TOK_VERTICAL  { $$ = 'v'; }
 682     | 'v'           { $$ = 'v'; }
 683     ;
 684
 685 floating:
 686     TOK_FLOATING boolean
 687     {
 688         HANDLE_EMPTY_MATCH;
 689
 690         owindow *current;
 691         TAILQ_FOREACH(current, &owindows, owindows) {
 692             printf("matching: %p / %s\n", current->con, current->con->name);
 693             if ($2 == TOK_TOGGLE) {
 694                 printf("should toggle mode\n");
 695                 toggle_floating_mode(current->con, false);
 696             } else {
 697                 printf("should switch mode to %s\n", ($2 == TOK_FLOATING ? "floating" : "tiling"));
 698                 if ($2 == TOK_ENABLE) {
 699                     floating_enable(current->con, false);
 700                 } else {
 701                     floating_disable(current->con, false);
 702                 }
 703             }
 704         }
 705
 706         tree_render();
 707     }
 708     ;
 709
 710 boolean:
 711     TOK_ENABLE    { $$ = TOK_ENABLE; }
 712     | TOK_DISABLE { $$ = TOK_DISABLE; }
 713     | TOK_TOGGLE  { $$ = TOK_TOGGLE; }
 714     ;
 715
 716 border:
 717     TOK_BORDER border_style
 718     {
 719         printf("border style should be changed to %d\n", $2);
 720         owindow *current;
 721
 722         HANDLE_EMPTY_MATCH;
 723
 724         TAILQ_FOREACH(current, &owindows, owindows) {
 725             printf("matching: %p / %s\n", current->con, current->con->name);
 726             int border_style = current->con->border_style;
 727             if ($2 == TOK_TOGGLE) {
 728                 border_style++;
 729                 border_style %= 3;
 730             } else border_style = $2;
 731             con_set_border_style(current->con, border_style);
 732         }
 733
 734         tree_render();
 735     }
 736     ;
 737
 738 border_style:
 739     TOK_NORMAL      { $$ = BS_NORMAL; }
 740     | TOK_NONE      { $$ = BS_NONE; }
 741     | TOK_1PIXEL    { $$ = BS_1PIXEL; }
 742     | TOK_TOGGLE    { $$ = TOK_TOGGLE; }
 743     ;
 744
 745 move:
 746     TOK_MOVE direction resize_px
 747     {
 748         int direction = $2;
 749         int px = $3;
 750
 751         /* TODO: make 'move' work with criteria. */
 752         printf("moving in direction %d\n", direction);
 753         if (con_is_floating(focused)) {
 754             printf("floating move with %d pixels\n", px);
 755             if (direction == TOK_LEFT) {
 756                 focused->parent->rect.x -= px;
 757             } else if (direction == TOK_RIGHT) {
 758                 focused->parent->rect.x += px;
 759             } else if (direction == TOK_UP) {
 760                 focused->parent->rect.y -= px;
 761             } else if (direction == TOK_DOWN) {
 762                 focused->parent->rect.y += px;
 763             }
 764         } else {
 765             tree_move(direction);
 766         }
 767
 768         tree_render();
 769     }
 770     | TOK_MOVE TOK_WORKSPACE STR
 771     {
 772         owindow *current;
 773
 774         /* Error out early to not create a non-existing workspace (in
 775          * workspace_get()) if we are not actually able to move anything. */
 776         if (match_is_empty(&current_match) && focused->type == CT_WORKSPACE)
 777             break;
 778
 779         printf("should move window to workspace %s\n", $3);
 780         /* get the workspace */
 781         Con *ws = workspace_get($3, NULL);
 782         free($3);
 783
 784         HANDLE_EMPTY_MATCH;
 785
 786         TAILQ_FOREACH(current, &owindows, owindows) {
 787             printf("matching: %p / %s\n", current->con, current->con->name);
 788             con_move_to_workspace(current->con, ws, true, false);
 789         }
 790
 791         tree_render();
 792     }
 793     | TOK_MOVE TOK_WORKSPACE TOK_NEXT
 794     {
 795         owindow *current;
 796
 797         /* get the workspace */
 798         Con *ws = workspace_next();
 799
 800         HANDLE_EMPTY_MATCH;
 801
 802         TAILQ_FOREACH(current, &owindows, owindows) {
 803             printf("matching: %p / %s\n", current->con, current->con->name);
 804             con_move_to_workspace(current->con, ws, true, false);
 805         }
 806
 807         tree_render();
 808     }
 809     | TOK_MOVE TOK_WORKSPACE TOK_PREV
 810     {
 811         owindow *current;
 812
 813         /* get the workspace */
 814         Con *ws = workspace_prev();
 815
 816         HANDLE_EMPTY_MATCH;
 817
 818         TAILQ_FOREACH(current, &owindows, owindows) {
 819             printf("matching: %p / %s\n", current->con, current->con->name);
 820             con_move_to_workspace(current->con, ws, true, false);
 821         }
 822
 823         tree_render();
 824     }
 825     | TOK_MOVE TOK_OUTPUT STR
 826     {
 827         owindow *current;
 828
 829         printf("should move window to output %s", $3);
 830
 831         HANDLE_EMPTY_MATCH;
 832
 833         /* get the output */
 834         Output *current_output = NULL;
 835         Output *output;
 836
 837         TAILQ_FOREACH(current, &owindows, owindows)
 838             current_output = get_output_containing(current->con->rect.x, current->con->rect.y);
 839
 840         assert(current_output != NULL);
 841
 842         if (strcasecmp($3, "up") == 0)
 843             output = get_output_next(D_UP, current_output);
 844         else if (strcasecmp($3, "down") == 0)
 845             output = get_output_next(D_DOWN, current_output);
 846         else if (strcasecmp($3, "left") == 0)
 847             output = get_output_next(D_LEFT, current_output);
 848         else if (strcasecmp($3, "right") == 0)
 849             output = get_output_next(D_RIGHT, current_output);
 850         else
 851             output = get_output_by_name($3);
 852         free($3);
 853
 854         if (!output)
 855             break;
 856
 857         /* get visible workspace on output */
 858         Con *ws = NULL;
 859         GREP_FIRST(ws, output_get_content(output->con), workspace_is_visible(child));
 860         if (!ws)
 861             break;
 862
 863         TAILQ_FOREACH(current, &owindows, owindows) {
 864             printf("matching: %p / %s\n", current->con, current->con->name);
 865             con_move_to_workspace(current->con, ws, true, false);
 866         }
 867
 868         tree_render();
 869     }
 870     ;
 871
 872 append_layout:
 873     TOK_APPEND_LAYOUT STR
 874     {
 875         printf("restoring \"%s\"\n", $2);
 876         tree_append_json($2);
 877         free($2);
 878         tree_render();
 879     }
 880     ;
 881
 882 layout:
 883     TOK_LAYOUT layout_mode
 884     {
 885         printf("changing layout to %d\n", $2);
 886         owindow *current;
 887
 888         /* check if the match is empty, not if the result is empty */
 889         if (match_is_empty(&current_match))
 890             con_set_layout(focused->parent, $2);
 891         else {
 892             TAILQ_FOREACH(current, &owindows, owindows) {
 893                 printf("matching: %p / %s\n", current->con, current->con->name);
 894                 con_set_layout(current->con, $2);
 895             }
 896         }
 897
 898         tree_render();
 899     }
 900     ;
 901
 902 layout_mode:
 903     TOK_DEFAULT   { $$ = L_DEFAULT; }
 904     | TOK_STACKED { $$ = L_STACKED; }
 905     | TOK_TABBED  { $$ = L_TABBED; }
 906     ;
 907
 908 mark:
 909     TOK_MARK STR
 910     {
 911         printf("marking window with str %s\n", $2);
 912         owindow *current;
 913
 914         HANDLE_EMPTY_MATCH;
 915
 916         TAILQ_FOREACH(current, &owindows, owindows) {
 917             printf("matching: %p / %s\n", current->con, current->con->name);
 918             current->con->mark = sstrdup($2);
 919         }
 920
 921         free($<string>2);
 922
 923         tree_render();
 924     }
 925     ;
 926
 927 nop:
 928     TOK_NOP STR
 929     {
 930         printf("-------------------------------------------------\n");
 931         printf("  NOP: %s\n", $2);
 932         printf("-------------------------------------------------\n");
 933         free($2);
 934     }
 935     ;
 936
 937 resize:
 938     TOK_RESIZE resize_way direction resize_px resize_tiling
 939     {
 940         /* resize <grow|shrink> <direction> [<px> px] [or <ppt> ppt] */
 941         printf("resizing in way %d, direction %d, px %d or ppt %d\n", $2, $3, $4, $5);
 942         int direction = $3;
 943         int px = $4;
 944         int ppt = $5;
 945         if ($2 == TOK_SHRINK) {
 946             px *= -1;
 947             ppt *= -1;
 948         }
 949
 950         if (con_is_floating(focused)) {
 951             printf("floating resize\n");
 952             if (direction == TOK_UP) {
 953                 focused->parent->rect.y -= px;
 954                 focused->parent->rect.height += px;
 955             } else if (direction == TOK_DOWN) {
 956                 focused->parent->rect.height += px;
 957             } else if (direction == TOK_LEFT) {
 958                 focused->parent->rect.x -= px;
 959                 focused->parent->rect.width += px;
 960             } else {
 961                 focused->parent->rect.width += px;
 962             }
 963         } else {
 964             LOG("tiling resize\n");
 965             /* get the appropriate current container (skip stacked/tabbed cons) */
 966             Con *current = focused;
 967             while (current->parent->layout == L_STACKED ||
 968                    current->parent->layout == L_TABBED)
 969                 current = current->parent;
 970             /* get the default percentage */
 971             int children = con_num_children(current->parent);
 972             Con *other;
 973             LOG("ins. %d children\n", children);
 974             double percentage = 1.0 / children;
 975             LOG("default percentage = %f\n", percentage);
 976
 977             orientation_t orientation = current->parent->orientation;
 978
 979             if ((orientation == HORIZ &&
 980                  (direction == TOK_UP || direction == TOK_DOWN)) ||
 981                 (orientation == VERT &&
 982                  (direction == TOK_LEFT || direction == TOK_RIGHT))) {
 983                 LOG("You cannot resize in that direction. Your focus is in a %s split container currently.\n",
 984                     (orientation == HORIZ ? "horizontal" : "vertical"));
 985                 break;
 986             }
 987
 988             if (direction == TOK_UP || direction == TOK_LEFT) {
 989                 other = TAILQ_PREV(current, nodes_head, nodes);
 990             } else {
 991                 other = TAILQ_NEXT(current, nodes);
 992             }
 993             if (other == TAILQ_END(workspaces)) {
 994                 LOG("No other container in this direction found, cannot resize.\n");
 995                 break;
 996             }
 997             LOG("other->percent = %f\n", other->percent);
 998             LOG("current->percent before = %f\n", current->percent);
 999             if (current->percent == 0.0)
1000                 current->percent = percentage;
1001             if (other->percent == 0.0)
1002                 other->percent = percentage;
1003             double new_current_percent = current->percent + ((double)ppt / 100.0);
1004             double new_other_percent = other->percent - ((double)ppt / 100.0);
1005             LOG("new_current_percent = %f\n", new_current_percent);
1006             LOG("new_other_percent = %f\n", new_other_percent);
1007             /* Ensure that the new percentages are positive and greater than
1008              * 0.05 to have a reasonable minimum size. */
1009             if (definitelyGreaterThan(new_current_percent, 0.05, DBL_EPSILON) &&
1010                 definitelyGreaterThan(new_other_percent, 0.05, DBL_EPSILON)) {
1011                 current->percent += ((double)ppt / 100.0);
1012                 other->percent -= ((double)ppt / 100.0);
1013                 LOG("current->percent after = %f\n", current->percent);
1014                 LOG("other->percent after = %f\n", other->percent);
1015             } else {
1016                 LOG("Not resizing, already at minimum size\n");
1017             }
1018         }
1019
1020         tree_render();
1021     }
1022     ;
1023
1024 resize_px:
1025     /* empty */
1026     {
1027         $$ = 10;
1028     }
1029     | NUMBER TOK_PX
1030     {
1031         $$ = $1;
1032     }
1033     ;
1034
1035 resize_tiling:
1036     /* empty */
1037     {
1038         $$ = 10;
1039     }
1040     | TOK_OR NUMBER TOK_PPT
1041     {
1042         $$ = $2;
1043     }
1044     ;
1045
1046 resize_way:
1047     TOK_GROW        { $$ = TOK_GROW; }
1048     | TOK_SHRINK    { $$ = TOK_SHRINK; }
1049     ;
1050
1051 direction:
1052     TOK_UP          { $$ = TOK_UP; }
1053     | TOK_DOWN      { $$ = TOK_DOWN; }
1054     | TOK_LEFT      { $$ = TOK_LEFT; }
1055     | TOK_RIGHT     { $$ = TOK_RIGHT; }
1056     ;
1057
1058 mode:
1059     TOK_MODE STR
1060     {
1061         switch_mode($2);
1062     }
1063     ;