usr.bin/window/cmd.c

   1 /*      $NetBSD: cmd.c,v 1.7 2002/06/14 01:06:51 wiz Exp $      */
   2
   3 /*
   4  * Copyright (c) 1983, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * Edward Wang at The University of California, Berkeley.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 #ifndef lint
  37 #if 0
  38 static char sccsid[] = "@(#)cmd.c       8.1 (Berkeley) 6/6/93";
  39 #else
  40 __RCSID("$NetBSD: cmd.c,v 1.7 2002/06/14 01:06:51 wiz Exp $");
  41 #endif
  42 #endif /* not lint */
  43
  44 #include <unistd.h>
  45 #include "defs.h"
  46 #include "char.h"
  47
  48 int     checkproc(struct ww *);
  49
  50 void
  51 docmd(void)
  52 {
  53         int c;
  54         struct ww *w;
  55         char out = 0;
  56
  57         while (!out && !quit) {
  58                 if ((c = wwgetc()) < 0) {
  59                         if (terse)
  60                                 wwsetcursor(0, 0);
  61                         else {
  62                                 wwputs("Command: ", cmdwin);
  63                                 wwcurtowin(cmdwin);
  64                         }
  65                         do
  66                                 wwiomux();
  67                         while ((c = wwgetc()) < 0);
  68                 }
  69                 if (!terse)
  70                         wwputc('\n', cmdwin);
  71                 switch (c) {
  72                 default:
  73                         if (c != escapec)
  74                                 break;
  75                 case 'h': case 'j': case 'k': case 'l':
  76                 case 'y': case 'p':
  77                 case ctrl('y'):
  78                 case ctrl('e'):
  79                 case ctrl('u'):
  80                 case ctrl('d'):
  81                 case ctrl('b'):
  82                 case ctrl('f'):
  83                 case ctrl('s'):
  84                 case ctrl('q'):
  85                 case ctrl('['):
  86                         if (selwin == 0) {
  87                                 error("No window.");
  88                                 continue;
  89                         }
  90                 }
  91                 switch (c) {
  92                 case '1': case '2': case '3': case '4': case '5':
  93                 case '6': case '7': case '8': case '9':
  94                         if ((w = window[c - '1']) == 0) {
  95                                 error("%c: No such window.", c);
  96                                 break;
  97                         }
  98                         setselwin(w);
  99                         if (checkproc(selwin) >= 0)
 100                                  out = 1;
 101                         break;
 102                 case '%':
 103                         if ((w = getwin()) != 0)
 104                                 setselwin(w);
 105                         break;
 106                 case ctrl('^'):
 107                         if (lastselwin != 0) {
 108                                 setselwin(lastselwin);
 109                                 if (checkproc(selwin) >= 0)
 110                                         out = 1;
 111                         } else
 112                                 error("No previous window.");
 113                         break;
 114                 case 'c':
 115                         if ((w = getwin()) != 0)
 116                                 closewin(w);
 117                         break;
 118                 case 'w':
 119                         c_window();
 120                         break;
 121                 case 'm':
 122                         if ((w = getwin()) != 0)
 123                                 c_move(w);
 124                         break;
 125                 case 'M':
 126                         if ((w = getwin()) != 0)
 127                                 movewin(w, w->ww_alt.t, w->ww_alt.l);
 128                         break;
 129                 case 's':
 130                         if ((w = getwin()) != 0)
 131                                 c_size(w);
 132                         break;
 133                 case 'S':
 134                         if ((w = getwin()) != 0)
 135                                 sizewin(w, w->ww_alt.nr, w->ww_alt.nc);
 136                         break;
 137                 case 'y':
 138                         c_yank();
 139                         break;
 140                 case 'p':
 141                         c_put();
 142                         break;
 143                 case ':':
 144                         c_colon();
 145                         break;
 146                 case 'h':
 147                         (void) wwwrite(selwin, "\b", 1);
 148                         break;
 149                 case 'j':
 150                         (void) wwwrite(selwin, "\n", 1);
 151                         break;
 152                 case 'k':
 153                         (void) wwwrite(selwin, "\033A", 2);
 154                         break;
 155                 case 'l':
 156                         (void) wwwrite(selwin, "\033C", 2);
 157                         break;
 158                 case ctrl('e'):
 159                         wwscroll(selwin, 1);
 160                         break;
 161                 case ctrl('y'):
 162                         wwscroll(selwin, -1);
 163                         break;
 164                 case ctrl('d'):
 165                         wwscroll(selwin, selwin->ww_w.nr / 2);
 166                         break;
 167                 case ctrl('u'):
 168                         wwscroll(selwin, - selwin->ww_w.nr / 2);
 169                         break;
 170                 case ctrl('f'):
 171                         wwscroll(selwin, selwin->ww_w.nr);
 172                         break;
 173                 case ctrl('b'):
 174                         wwscroll(selwin, - selwin->ww_w.nr);
 175                         break;
 176                 case ctrl('s'):
 177                         stopwin(selwin);
 178                         break;
 179                 case ctrl('q'):
 180                         startwin(selwin);
 181                         break;
 182                 case ctrl('l'):
 183                         wwredraw();
 184                         break;
 185                 case '?':
 186                         c_help();
 187                         break;
 188                 case ctrl('['):
 189                         if (checkproc(selwin) >= 0)
 190                                 out = 1;
 191                         break;
 192                 case ctrl('z'):
 193                         wwsuspend();
 194                         break;
 195                 case 'q':
 196                         c_quit();
 197                         break;
 198                 /* debugging stuff */
 199                 case '&':
 200                         if (debug) {
 201                                 c_debug();
 202                                 break;
 203                         }
 204                 default:
 205                         if (c == escapec) {
 206                                 if (checkproc(selwin) >= 0) {
 207                                         (void) write(selwin->ww_pty,
 208                                                 &escapec, 1);
 209                                         out = 1;
 210                                 }
 211                         } else {
 212                                 if (!terse)
 213                                         wwbell();
 214                                 error("Type ? for help.");
 215                         }
 216                 }
 217         }
 218         if (!quit)
 219                 setcmd(0);
 220 }
 221
 222 struct ww *
 223 getwin(void)
 224 {
 225         int c;
 226         struct ww *w = 0;
 227
 228         if (!terse)
 229                 wwputs("Which window? ", cmdwin);
 230         wwcurtowin(cmdwin);
 231         while ((c = wwgetc()) < 0)
 232                 wwiomux();
 233         if (debug && c == 'c')
 234                 w = cmdwin;
 235         else if (debug && c == 'f')
 236                 w = framewin;
 237         else if (debug && c == 'b')
 238                 w = boxwin;
 239         else if (c >= '1' && c < NWINDOW + '1')
 240                 w = window[c - '1'];
 241         else if (c == '+')
 242                 w = selwin;
 243         else if (c == '-')
 244                 w = lastselwin;
 245         if (w == 0)
 246                 wwbell();
 247         if (!terse)
 248                 wwputc('\n', cmdwin);
 249         return w;
 250 }
 251
 252 int
 253 checkproc(struct ww *w)
 254 {
 255         if (w->ww_state != WWS_HASPROC) {
 256                 error("No process in window.");
 257                 return -1;
 258         }
 259         return 0;
 260 }
 261
 262 void
 263 setcmd(char new)
 264 {
 265         if (new && !incmd) {
 266                 if (!terse)
 267                         wwadd(cmdwin, &wwhead);
 268                 if (selwin != 0)
 269                         wwcursor(selwin, 1);
 270                 wwcurwin = 0;
 271         } else if (!new && incmd) {
 272                 if (!terse) {
 273                         wwdelete(cmdwin);
 274                         reframe();
 275                 }
 276                 if (selwin != 0)
 277                         wwcursor(selwin, 0);
 278                 wwcurwin = selwin;
 279         }
 280         incmd = new;
 281 }
 282
 283 void
 284 setterse(char new)
 285 {
 286         if (incmd) {
 287                 if (new && !terse) {
 288                         wwdelete(cmdwin);
 289                         reframe();
 290                 } else if (!new && terse)
 291                         wwadd(cmdwin, &wwhead);
 292         }
 293         terse = new;
 294 }
 295
 296 /*
 297  * Set the current window.
 298  */
 299 void
 300 setselwin(struct ww *w)
 301 {
 302         if (selwin == w)
 303                 return;
 304         if (selwin != 0)
 305                 lastselwin = selwin;
 306         if ((selwin = w) != 0)
 307                 front(selwin, 1);
 308 }