Pileus Git - wmpus/blob - wm-wmii.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3
   4 #include "util.h"
   5 #include "sys.h"
   6 #include "wm.h"
   7
   8 #define MODKEY alt
   9 #define MARGIN 0
  10 #define STACK  25
  11
  12 /* Enums */
  13 typedef enum {
  14         none, move, resize
  15 } drag_t;
  16
  17 typedef enum {
  18         split, stack, max, tab
  19 } mode_t;
  20
  21
  22 /* Window structure types */
  23 struct win_wm { };
  24
  25 typedef struct {
  26         win_t  *win;
  27         int     height;
  28 } row_t;
  29
  30 typedef struct {
  31         list_t *rows; // of row_t
  32         row_t  *row;
  33         int     width;
  34         mode_t  mode;
  35 } col_t;
  36
  37 typedef struct {
  38         list_t *cols; // of col_t
  39         col_t  *col;
  40         win_t  *geom;
  41 } dpy_t;
  42
  43 typedef struct {
  44         list_t *dpys; // of dpy_t
  45         dpy_t  *dpy;
  46         int     name;
  47 } tag_t;
  48
  49 typedef struct {
  50         list_t *tags; // of tag_t
  51         tag_t  *tag;
  52         win_t  *root;
  53         list_t *screens;
  54 } wm_t;
  55
  56 /* Mouse drag data */
  57 static drag_t  move_mode;
  58 static list_t *move_lrow;
  59 static list_t *move_lcol;
  60 static ptr_t   move_prev;
  61 static struct { int v, h; } move_dir;
  62
  63 /* Window management data */
  64 static wm_t  *wm;
  65 #define wm_win   wm->tag->dpy->col->row->win
  66 #define wm_row   wm->tag->dpy->col->row
  67 #define wm_col   wm->tag->dpy->col
  68 #define wm_dpy   wm->tag->dpy
  69 #define wm_tag   wm->tag
  70 #define wm_focus (wm_tag && wm_dpy && wm_col && wm_row ? wm_win : NULL)
  71
  72 #define WIN(l) ((win_t*)(l)->data)
  73 #define ROW(l) ((row_t*)(l)->data)
  74 #define COL(l) ((col_t*)(l)->data)
  75 #define DPY(l) ((dpy_t*)(l)->data)
  76 #define TAG(l) ((tag_t*)(l)->data)
  77
  78 /* Helper functions */
  79 static int searchl(tag_t *tag, win_t *target,
  80                 list_t **_dpy, list_t **_col, list_t **_row)
  81 {
  82         for (list_t *dpy =     tag ->dpys; dpy; dpy = dpy->next)
  83         for (list_t *col = DPY(dpy)->cols; col; col = col->next)
  84         for (list_t *row = COL(col)->rows; row; row = row->next) {
  85                 win_t *win = ROW(row)->win;
  86                 if (win == target) {
  87                         if (_dpy) *_dpy = dpy;
  88                         if (_col) *_col = col;
  89                         if (_row) *_row = row;
  90                         return 1;
  91                 }
  92         }
  93         return 0;
  94 }
  95
  96 static int search(tag_t *tag, win_t *target,
  97                 dpy_t **_dpy, col_t **_col, row_t **_row)
  98 {
  99         list_t *dpy, *col, *row;
 100         if (searchl(tag, target, &dpy, &col, &row)) {
 101                 if (_dpy) *_dpy = DPY(dpy);
 102                 if (_col) *_col = COL(col);
 103                 if (_row) *_row = ROW(row);
 104                 return 1;
 105         }
 106         return 0;
 107 }
 108
 109 static void set_mode(win_t *win, mode_t mode)
 110 {
 111         col_t *col;
 112         search(wm_tag, win, NULL, &col, NULL);
 113         printf("set_mode: %p, %d -> %d\n",
 114                         col, col->mode, mode);
 115         col->mode = mode;
 116         if (col->mode == split)
 117                 for (list_t *cur = col->rows; cur; cur = cur->next) {
 118                         row_t *row = cur->data;
 119                         row->height = wm_dpy->geom->h;
 120                 }
 121         wm_update();
 122 }
 123
 124 static void set_focus(win_t *win)
 125 {
 126         /* - Only grab mouse button on unfocused window,
 127          *   this prevents stealing all mouse clicks from client windows,
 128          * - A better way may be to re-send mouse clicks to client windows
 129          *   using the return value from wm_handle_key */
 130         for (int i = key_mouse1; i < key_mouse7; i++) {
 131                 if (wm_focus)
 132                         sys_watch(wm_focus, i, MOD());
 133                 sys_unwatch(win, i, MOD());
 134         }
 135
 136         dpy_t *dpy; col_t *col; row_t *row;
 137         if (search(wm_tag, win, &dpy, &col, &row)) {
 138                 wm_dpy = dpy;
 139                 wm_col = col;
 140                 wm_row = row;
 141         }
 142         sys_focus(win);
 143 }
 144
 145 static void set_move(win_t *win, ptr_t ptr, drag_t drag)
 146 {
 147         printf("set_move: %d - %p@%d,%d\n",
 148                         drag, win, ptr.rx, ptr.ry);
 149         move_mode = drag;
 150         if (drag == move || drag == resize) {
 151                 searchl(wm_tag, win, NULL, &move_lcol, &move_lrow);
 152                 move_prev = ptr;
 153                 int my = win->y + (win->h/2);
 154                 int mx = win->x + (win->w/2);
 155                 move_dir.v = ptr.ry < my ? -1 : +1;
 156                 move_dir.h = ptr.rx < mx ? -1 : +1;
 157         }
 158 }
 159
 160 static void print_txt(void)
 161 {
 162         for (list_t *ltag = wm->tags; ltag; ltag = ltag->next) {
 163                 tag_t *tag = ltag->data;
 164                 printf("tag:       <%-9p [%p->%p] >%-9p  -  %d\n",
 165                                 ltag->prev, ltag, ltag->data, ltag->next, tag->name);
 166         for (list_t *ldpy = tag->dpys; ldpy; ldpy = ldpy->next) {
 167                 dpy_t *dpy  = ldpy->data;
 168                 win_t *geom = dpy->geom;
 169                 printf("  dpy:     <%-9p [%p->%p] >%-9p  -  %d,%d %dx%d\n",
 170                                 ldpy->prev, ldpy, ldpy->data, ldpy->next,
 171                                 geom->x, geom->y, geom->h, geom->w);
 172         for (list_t *lcol = dpy->cols; lcol; lcol = lcol->next) {
 173                 col_t *col = lcol->data;
 174                 printf("    col:   <%-9p [%p->%p] >%-9p  -  %dpx @ %d !!%p\n",
 175                                 lcol->prev, lcol, lcol->data, lcol->next,
 176                                 col->width, col->mode, col->row);
 177         for (list_t *lrow = col->rows; lrow; lrow = lrow->next) {
 178                 row_t *row = lrow->data;
 179                 win_t *win = row->win;
 180                 printf("      win: <%-9p [%p>>%p] >%-9p  -  %4dpx focus=%d%d\n",
 181                                 lrow->prev, lrow, win, lrow->next,
 182                                 win->h, col->row == row, wm_focus == win);
 183         } } } }
 184 }
 185
 186 static void cut_win(tag_t *tag, win_t *win)
 187 {
 188         list_t *ldpy, *lcol, *lrow;
 189         if (!searchl(tag, win, &ldpy, &lcol, &lrow))
 190                 return;
 191         col_t  *col  = COL(lcol);
 192         dpy_t  *dpy  = DPY(ldpy);
 193
 194         col->row  = lrow->prev ? lrow->prev->data :
 195                     lrow->next ? lrow->next->data : NULL;
 196         col->rows = list_remove(col->rows, lrow);
 197
 198         if (col->rows == NULL && (lcol->next || lcol->prev)) {
 199                 dpy->col  = lcol->prev ? lcol->prev->data :
 200                             lcol->next ? lcol->next->data : NULL;
 201                 dpy->cols = list_remove(dpy->cols, lcol);
 202         }
 203 }
 204
 205 static void put_win(win_t *win, dpy_t *dpy, col_t *col)
 206 {
 207         row_t *row = new0(row_t);
 208         row->win = win;
 209
 210         if (col == NULL) {
 211                 col = new0(col_t);
 212                 dpy->cols = list_insert(dpy->cols, col);
 213         }
 214
 215         int nrows = list_length(col->rows);
 216         if (col->row) {
 217                 list_t *prev = list_find(col->rows, col->row);
 218                 list_insert_after(prev, row);
 219         } else {
 220                 col->rows = list_insert(col->rows, row);
 221         }
 222         wm_tag->dpy           = dpy;
 223         wm_tag->dpy->col      = col;
 224         wm_tag->dpy->col->row = row;
 225
 226         row->height = dpy->geom->h / MAX(nrows,1);
 227         if (nrows == 0) {
 228                 int ncols = list_length(dpy->cols);
 229                 col->width = dpy->geom->w / MAX(ncols-1,1);
 230         }
 231 }
 232
 233 static void shift_window(win_t *win, int col, int row)
 234 {
 235         if (!win) return;
 236         printf("shift_window: %p - %+d,%+d\n", win, col, row);
 237         print_txt();
 238         printf("shift_window: >>>\n");
 239         list_t *ldpy, *lcol, *lrow;
 240         searchl(wm_tag, win, &ldpy, &lcol, &lrow);
 241         dpy_t *dpy = ldpy->data;
 242         if (row != 0) {
 243                 list_t *src = lrow, *dst = NULL;
 244                 if (row < 0) dst = src->prev;
 245                 if (row > 0) dst = src->next;
 246                 if (src && dst) {
 247                         printf("swap: %p <-> %p\n", src->data, dst->data);
 248                         row_t *tmp = src->data;
 249                         src->data = dst->data;
 250                         dst->data = tmp;
 251                         goto update;
 252                 }
 253         } else {
 254                 int onlyrow = !lrow->prev && !lrow->next;
 255                 list_t *src = lcol, *dst = NULL;
 256                 if (col < 0) {
 257                         if (src->prev) {
 258                                 dst = src->prev;
 259                         } else if (!onlyrow) {
 260                                 dpy->cols = list_insert(dpy->cols, new0(col_t));
 261                                 dst = src->prev;
 262                         } else if (ldpy->prev) {
 263                                 dpy = ldpy->prev->data;
 264                                 dst = list_last(dpy->cols);
 265                         } else {
 266                                 return;
 267                         }
 268                 }
 269                 if (col > 0) {
 270                         if (src->next) {
 271                                 dst = src->next;
 272                         } else if (!onlyrow) {
 273                                 dpy->cols = list_append(dpy->cols, new0(col_t));
 274                                 dst = src->next;
 275                         } else if (ldpy->next) {
 276                                 dpy = ldpy->next->data;
 277                                 dst = dpy->cols;
 278                         } else {
 279                                 return;
 280                         }
 281                 }
 282                 cut_win(wm_tag, win);
 283                 put_win(win, dpy, dst ? dst->data : NULL);
 284                 goto update;
 285         }
 286 update:
 287         print_txt();
 288         wm_update();
 289 }
 290
 291 static list_t *get_next(list_t *list, int forward)
 292 {
 293         list_t *next = forward ? list->next : list->prev;
 294         if (next == NULL) {
 295                 next = list;
 296                 while ((list = forward ? next->prev : next->next))
 297                         next = list;
 298         }
 299         return next;
 300 }
 301 static void shift_focus(int cols, int rows)
 302 {
 303         printf("shift_focus: %+d,%+d\n", cols, rows);
 304         if (rows != 0 && wm_focus) {
 305                 list_t *dpy, *col, *row;
 306                 searchl(wm_tag, wm_focus, &dpy, &col, &row);
 307                 row_t *next = get_next(row, rows > 0)->data;
 308                 set_focus(next->win);
 309                 if (COL(col)->mode != split)
 310                         wm_update();
 311         }
 312         if (cols != 0) {
 313                 list_t *dpy, *col, *row, *ndpy, *ncol = NULL;
 314                 if (wm_focus) {
 315                         searchl(wm_tag, wm_focus, &dpy, &col, &row);
 316                         ncol = cols > 0 ? col->next : col->prev;
 317                 } else {
 318                         dpy = list_find(wm_tag->dpys, wm_dpy);
 319                 }
 320                 if (ncol == NULL) {
 321                         ndpy = get_next(dpy, cols > 0);
 322                         ncol = cols > 0 ? DPY(ndpy)->cols :
 323                                 list_last(DPY(ndpy)->cols);
 324                         wm_dpy = ndpy->data;
 325                 }
 326                 if (ncol && COL(ncol) && COL(ncol)->row)
 327                         set_focus(COL(ncol)->row->win);
 328                 else
 329                         sys_focus(wm->root);
 330         }
 331 }
 332
 333 static tag_t *tag_new(list_t *screens, int name)
 334 {
 335         tag_t *tag = new0(tag_t);
 336         tag->name  = name;
 337         for (list_t *cur = screens; cur; cur = cur->next) {
 338                 dpy_t *dpy  = new0(dpy_t);
 339                 dpy->geom = cur->data;
 340                 tag->dpys = list_append(tag->dpys, dpy);
 341         }
 342         tag->dpy  = tag->dpys->data;
 343         return tag;
 344 }
 345
 346 static tag_t *tag_find(int name)
 347 {
 348         tag_t *tag = NULL;
 349         for (list_t *cur = wm->tags; cur; cur = cur->next)
 350                 if (name == TAG(cur)->name) {
 351                         tag = cur->data;
 352                         break;
 353                 }
 354         if (!tag) {
 355                 tag = tag_new(wm->screens, name);
 356                 wm->tags = list_insert(wm->tags, tag);
 357         }
 358         return tag;
 359 }
 360
 361 static void tag_set(win_t *win, int name)
 362 {
 363         printf("tag_set: %p %d\n", win, name);
 364         if (wm_tag->name == name)
 365                 return;
 366         cut_win(wm_tag, win);
 367         win_t *focus = wm_focus;
 368
 369         tag_t *tag = tag_find(name);
 370         put_win(win, tag->dpy, tag->dpy->col);
 371         set_focus(focus);
 372 }
 373
 374 /* Window management functions */
 375 void wm_update_dpy(dpy_t *dpy)
 376 {
 377         int  x=0,  y=0; // Current window top-left position
 378         int tx=0, ty=0; // Total x/y size
 379         int mx=0, my=0; // Maximum x/y size (screen size)
 380         int       sy=0; // Size of focused stack window
 381
 382         /* Scale horizontally */
 383         x  = dpy->geom->x;
 384         mx = dpy->geom->w - (list_length(dpy->cols)+1)*MARGIN;
 385         for (list_t *lx = dpy->cols; lx; lx = lx->next)
 386                 tx += COL(lx)->width;
 387         for (list_t *lx = dpy->cols; lx; lx = lx->next)
 388                 COL(lx)->width *= (float)mx / tx;
 389
 390         /* Scale each column vertically */
 391         for (list_t *lx = dpy->cols; lx; lx = lx->next) {
 392                 col_t *col = lx->data;
 393                 ty = 0;
 394                 for (list_t *ly = col->rows; ly; ly = ly->next)
 395                         ty += ROW(ly)->height;
 396                 y  = dpy->geom->y;
 397                 my = dpy->geom->h - (list_length(col->rows)+1)*MARGIN;
 398                 sy = my              - (list_length(col->rows)-1)*STACK;
 399                 for (list_t *ly = col->rows; ly; ly = ly->next) {
 400                         win_t *win = ROW(ly)->win;
 401                         win->h = ROW(ly)->height;
 402                         int height = 0;
 403                         switch (col->mode) {
 404                         case split:
 405                                 sys_move(win, x+MARGIN, y+MARGIN,
 406                                         col->width, win->h * ((float)my / ty));
 407                                 height = win->h;
 408                                 break;
 409                         case stack:
 410                                 height = col->row->win == win ? sy : STACK;
 411                                 sys_move(win, x+MARGIN, y+MARGIN,
 412                                         col->width, height);
 413                                 break;
 414                         case max:
 415                         case tab:
 416                                 sys_move(win, x+MARGIN, 0+MARGIN,
 417                                         col->width, dpy->geom->h-2*MARGIN);
 418                                 if (col->row->win == win)
 419                                         sys_raise(win);
 420                                 break;
 421                         }
 422                         y += height + MARGIN;
 423                         ROW(ly)->height = win->h;
 424                 }
 425                 x += col->width + MARGIN;
 426         }
 427 }
 428
 429 void wm_update(void)
 430 {
 431         /* Show/hide tags */
 432         for (list_t *ltag =       wm ->tags; ltag; ltag = ltag->next)
 433         for (list_t *ldpy = TAG(ltag)->dpys; ldpy; ldpy = ldpy->next)
 434         for (list_t *lcol = DPY(ldpy)->cols; lcol; lcol = lcol->next)
 435         for (list_t *lrow = COL(lcol)->rows; lrow; lrow = lrow->next)
 436                 sys_show(ROW(lrow)->win,
 437                         ltag->data == wm_tag ? st_show : st_hide);
 438
 439         /* Refrsh the display */
 440         for (list_t *ldpy = wm_tag->dpys; ldpy; ldpy = ldpy->next)
 441                 wm_update_dpy(ldpy->data);
 442         if (wm_focus)
 443                 set_focus(wm_focus);
 444 }
 445
 446 int wm_handle_key(win_t *win, Key_t key, mod_t mod, ptr_t ptr)
 447 {
 448         if (!win || win == wm_dpy->geom) return 0;
 449         //printf("wm_handle_key: %p - %x %c%c%c%c%c\n", win, key,
 450         //      mod.up    ? '^' : 'v',
 451         //      mod.alt   ? 'a' : '-',
 452         //      mod.ctrl  ? 'c' : '-',
 453         //      mod.shift ? 's' : '-',
 454         //      mod.win   ? 'w' : '-');
 455
 456         /* Mouse movement */
 457         if (key_mouse0 <= key && key <= key_mouse7 && mod.up)
 458                 return set_move(win,ptr,none), 1;
 459         else if (key == key_mouse1 && mod.MODKEY)
 460                 return set_move(win,ptr,move), 1;
 461         else if (key == key_mouse3 && mod.MODKEY)
 462                 return set_move(win,ptr,resize), 1;
 463
 464         /* Only handle key-down */
 465         if (mod.up)
 466                 return 0;
 467
 468         /* Misc */
 469         if (mod.MODKEY) {
 470                 if (key == key_f1) return sys_raise(win), 1;
 471                 if (key == key_f2) return set_focus(win), 1;
 472                 if (key == key_f3) return sys_show(win, st_show), 1;
 473                 if (key == key_f4) return sys_show(win, st_hide), 1;
 474                 if (key == key_f5) return wm_update(),    1;
 475                 if (key == key_f6) return print_txt(),    1;
 476         }
 477         if (key_mouse0 <= key && key <= key_mouse7)
 478                 sys_raise(win);
 479
 480         /* Movement commands */
 481         if (mod.MODKEY && mod.shift) {
 482                 switch (key) {
 483                 case 'h': return shift_window(wm_focus,-1, 0), 1;
 484                 case 'j': return shift_window(wm_focus, 0,+1), 1;
 485                 case 'k': return shift_window(wm_focus, 0,-1), 1;
 486                 case 'l': return shift_window(wm_focus,+1, 0), 1;
 487                 default: break;
 488                 }
 489         }
 490         else if (mod.MODKEY) {
 491                 switch (key) {
 492                 case 'h': return shift_focus(-1, 0), 1;
 493                 case 'j': return shift_focus( 0,+1), 1;
 494                 case 'k': return shift_focus( 0,-1), 1;
 495                 case 'l': return shift_focus(+1, 0), 1;
 496                 default: break;
 497                 }
 498         }
 499
 500         /* Column mode commands */
 501         if (mod.MODKEY) {
 502                 switch (key) {
 503                 case 'd': return set_mode(win, split), 1;
 504                 case 's': return set_mode(win, stack), 1;
 505                 case 'm': return set_mode(win, max),   1;
 506                 case 't': return set_mode(win, tab),   1;
 507                 default: break;
 508                 }
 509         }
 510
 511         /* Tag switching */
 512         if (mod.MODKEY && '0' <= key && key <= '9') {
 513                 int name = key - '0';
 514                 if (mod.shift) {
 515                         tag_set(win, name);
 516                 } else {
 517                         printf("tag_switch: %d\n", name);
 518                         wm_tag = tag_find(name);
 519                 }
 520                 wm_update();
 521         }
 522
 523         /* Focus change */
 524         if (key == key_enter)
 525                 return set_focus(win), 1;
 526
 527         if (key_mouse0 <= key && key <= key_mouse7)
 528                 return set_focus(win), 0;
 529
 530         /* Reset focus after after focus change,
 531          * not sure what is causing the focus change in the first place
 532          * but preventing that would be a better solution */
 533         if (key == key_focus)
 534                 sys_focus(wm_focus ?: wm->root);
 535
 536         return 0;
 537 }
 538
 539 int wm_handle_ptr(win_t *cwin, ptr_t ptr)
 540 {
 541         //printf("wm_handle_ptr: %p - %d,%d %d,%d (%d) -- \n",
 542         //              cwin, ptr.x, ptr.y, ptr.rx, ptr.ry, move_mode);
 543
 544         if (move_mode == none)
 545                 return 0;
 546
 547         /* Tiling */
 548         int dx = ptr.rx - move_prev.rx;
 549         int dy = ptr.ry - move_prev.ry;
 550         move_prev = ptr;
 551         if (move_mode == resize) {
 552                 list_t *vert = move_dir.v < 0 ? move_lrow->prev : move_lrow->next;
 553                 list_t *horz = move_dir.h < 0 ? move_lcol->prev : move_lcol->next;
 554                 if (vert) {
 555                         ROW(move_lrow)->height += move_dir.v * dy;
 556                         ROW(vert)->height      -= move_dir.v * dy;
 557                 }
 558                 if (horz) {
 559                         COL(move_lcol)->width  += move_dir.h * dx;
 560                         COL(horz)->width       -= move_dir.h * dx;
 561                 }
 562                 wm_update();
 563         }
 564
 565         /* Floating */
 566         //win_t *mwin = move_win;
 567         //int dx = ptr.rx - move_prev.rx;
 568         //int dy = ptr.ry - move_prev.ry;
 569         //move_prev = ptr;
 570         //if (move_mode == move)
 571         //      sys_move(mwin, mwin->x+dx, mwin->y+dy, mwin->w, mwin->h);
 572         //else if (move_mode == resize)
 573         //      sys_move(mwin, mwin->x, mwin->y, mwin->w+dx, mwin->h+dy);
 574
 575         return 0;
 576 }
 577
 578 void wm_insert(win_t *win)
 579 {
 580         printf("wm_insert: %p\n", win);
 581         print_txt();
 582
 583         /* Initialize window */
 584         win->wm = new0(win_wm_t);
 585         sys_watch(win, key_enter, MOD());
 586         sys_watch(win, key_focus, MOD());
 587
 588         /* Add to screen */
 589         put_win(win, wm_dpy, wm_col);
 590
 591         /* Arrange */
 592         wm_update();
 593         sys_focus(wm_focus);
 594         print_txt();
 595 }
 596
 597 void wm_remove(win_t *win)
 598 {
 599         printf("wm_remove: %p\n", win);
 600         print_txt();
 601         for (list_t *tag = wm->tags; tag; tag = tag->next)
 602                 cut_win(tag->data, win);
 603         if (wm_focus)
 604                 sys_focus(wm_focus);
 605         else
 606                 sys_focus(wm->root);
 607         wm_update();
 608         print_txt();
 609 }
 610
 611 void wm_init(win_t *root)
 612 {
 613         printf("wm_init: %p\n", root);
 614
 615         /* Hack, fix screen order */
 616         list_t *screens = sys_info(root);
 617         list_t *left  = screens;
 618         list_t *right = screens->next;
 619         if (left && right && WIN(left)->x > WIN(right)->x) {
 620                 void *tmp   = left->data;
 621                 left->data  = right->data;
 622                 right->data = tmp;
 623         }
 624
 625         wm          = new0(wm_t);
 626         wm->root    = root;
 627         wm->screens = screens;
 628         wm->tag     = tag_new(wm->screens, 1);
 629         wm->tags    = list_insert(NULL, wm->tag);
 630
 631         Key_t keys_e[] = {key_enter, key_focus};
 632         Key_t keys_s[] = {'h', 'j', 'k', 'l',
 633                 '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'};
 634         Key_t keys_m[] = {'h', 'j', 'k', 'l', 'd', 's', 'm', 't',
 635                 '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
 636                 /*key_f1, key_f2, key_f3, key_f4,*/ key_f5, key_f6,
 637                 key_mouse1, key_mouse3};
 638         for (int i = 0; i < countof(keys_e); i++)
 639                 sys_watch(root, keys_e[i],  MOD());
 640         for (int i = 0; i < countof(keys_m); i++)
 641                 sys_watch(root, keys_m[i], MOD(.MODKEY=1));
 642         for (int i = 0; i < countof(keys_s); i++)
 643                 sys_watch(root, keys_s[i], MOD(.MODKEY=1,.shift=1));
 644 }