| 1 | /*- |
| 2 | * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer as |
| 10 | * the first lines of this file unmodified. |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * |
| 15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR |
| 16 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 17 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 18 | * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 19 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 20 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 21 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 22 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 23 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 24 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 25 | * |
| 26 | * $FreeBSD: src/sys/dev/syscons/scmouse.c,v 1.12.2.3 2001/07/28 12:51:47 yokota Exp $ |
| 27 | */ |
| 28 | |
| 29 | #include "opt_syscons.h" |
| 30 | |
| 31 | #include <sys/param.h> |
| 32 | #include <sys/systm.h> |
| 33 | #include <sys/kernel.h> |
| 34 | #include <sys/conf.h> |
| 35 | #include <sys/signalvar.h> |
| 36 | #include <sys/proc.h> |
| 37 | #include <sys/tty.h> |
| 38 | #include <sys/thread2.h> |
| 39 | #include <sys/mplock2.h> |
| 40 | |
| 41 | #include <machine/console.h> |
| 42 | #include <sys/mouse.h> |
| 43 | |
| 44 | #include "syscons.h" |
| 45 | |
| 46 | #ifdef SC_TWOBUTTON_MOUSE |
| 47 | #define SC_MOUSE_PASTEBUTTON MOUSE_BUTTON3DOWN /* right button */ |
| 48 | #define SC_MOUSE_EXTENDBUTTON MOUSE_BUTTON2DOWN /* not really used */ |
| 49 | #else |
| 50 | #define SC_MOUSE_PASTEBUTTON MOUSE_BUTTON2DOWN /* middle button */ |
| 51 | #define SC_MOUSE_EXTENDBUTTON MOUSE_BUTTON3DOWN /* right button */ |
| 52 | #endif /* SC_TWOBUTTON_MOUSE */ |
| 53 | |
| 54 | #define SC_WAKEUP_DELTA 20 |
| 55 | |
| 56 | #ifndef SC_NO_SYSMOUSE |
| 57 | |
| 58 | static int cut_buffer_size; |
| 59 | static u_char *cut_buffer; |
| 60 | |
| 61 | /* local functions */ |
| 62 | static void sc_mouse_init(void *); |
| 63 | static void sc_mouse_uninit(void *); |
| 64 | |
| 65 | static void set_mouse_pos(scr_stat *scp); |
| 66 | #ifndef SC_NO_CUTPASTE |
| 67 | static int skip_spc_right(scr_stat *scp, int p); |
| 68 | static int skip_spc_left(scr_stat *scp, int p); |
| 69 | static void mouse_cut(scr_stat *scp); |
| 70 | static void mouse_cut_start(scr_stat *scp); |
| 71 | static void mouse_cut_end(scr_stat *scp); |
| 72 | static void mouse_cut_word(scr_stat *scp); |
| 73 | static void mouse_cut_line(scr_stat *scp); |
| 74 | static void mouse_cut_extend(scr_stat *scp); |
| 75 | static void mouse_paste(scr_stat *scp); |
| 76 | #endif /* SC_NO_CUTPASTE */ |
| 77 | |
| 78 | #ifndef SC_NO_CUTPASTE |
| 79 | /* allocate a cut buffer */ |
| 80 | void |
| 81 | sc_alloc_cut_buffer(scr_stat *scp, int wait) |
| 82 | { |
| 83 | u_char *p; |
| 84 | |
| 85 | if ((cut_buffer == NULL) |
| 86 | || (cut_buffer_size < scp->xsize * scp->ysize + 1)) { |
| 87 | p = cut_buffer; |
| 88 | cut_buffer = NULL; |
| 89 | if (p != NULL) |
| 90 | kfree(p, M_SYSCONS); |
| 91 | cut_buffer_size = scp->xsize * scp->ysize + 1; |
| 92 | p = kmalloc(cut_buffer_size, M_SYSCONS, (wait) ? M_WAITOK : M_NOWAIT); |
| 93 | if (p != NULL) |
| 94 | p[0] = '\0'; |
| 95 | cut_buffer = p; |
| 96 | } |
| 97 | } |
| 98 | #endif /* SC_NO_CUTPASTE */ |
| 99 | |
| 100 | /* move mouse */ |
| 101 | void |
| 102 | sc_mouse_move(scr_stat *scp, int x, int y) |
| 103 | { |
| 104 | crit_enter(); |
| 105 | scp->mouse_xpos = scp->mouse_oldxpos = x; |
| 106 | scp->mouse_ypos = scp->mouse_oldypos = y; |
| 107 | if (scp->font_size <= 0) |
| 108 | scp->mouse_pos = scp->mouse_oldpos = 0; |
| 109 | else |
| 110 | scp->mouse_pos = scp->mouse_oldpos = |
| 111 | (y/scp->font_size - scp->yoff)*scp->xsize + x/8 - scp->xoff; |
| 112 | scp->status |= MOUSE_MOVED; |
| 113 | crit_exit(); |
| 114 | } |
| 115 | |
| 116 | /* adjust mouse position */ |
| 117 | static void |
| 118 | set_mouse_pos(scr_stat *scp) |
| 119 | { |
| 120 | if (scp->mouse_xpos < scp->xoff*8) |
| 121 | scp->mouse_xpos = scp->xoff*8; |
| 122 | if (scp->mouse_ypos < scp->yoff*scp->font_size) |
| 123 | scp->mouse_ypos = scp->yoff*scp->font_size; |
| 124 | if (ISGRAPHSC(scp)) { |
| 125 | if (scp->mouse_xpos > scp->xpixel-1) |
| 126 | scp->mouse_xpos = scp->xpixel-1; |
| 127 | if (scp->mouse_ypos > scp->ypixel-1) |
| 128 | scp->mouse_ypos = scp->ypixel-1; |
| 129 | return; |
| 130 | } else { |
| 131 | if (scp->mouse_xpos > (scp->xsize + scp->xoff)*8 - 1) |
| 132 | scp->mouse_xpos = (scp->xsize + scp->xoff)*8 - 1; |
| 133 | if (scp->mouse_ypos > (scp->ysize + scp->yoff)*scp->font_size - 1) |
| 134 | scp->mouse_ypos = (scp->ysize + scp->yoff)*scp->font_size - 1; |
| 135 | } |
| 136 | |
| 137 | if (scp->mouse_xpos != scp->mouse_oldxpos || scp->mouse_ypos != scp->mouse_oldypos) { |
| 138 | scp->status |= MOUSE_MOVED; |
| 139 | scp->mouse_pos = |
| 140 | (scp->mouse_ypos/scp->font_size - scp->yoff)*scp->xsize |
| 141 | + scp->mouse_xpos/8 - scp->xoff; |
| 142 | #ifndef SC_NO_CUTPASTE |
| 143 | if ((scp->status & MOUSE_VISIBLE) && (scp->status & MOUSE_CUTTING)) |
| 144 | mouse_cut(scp); |
| 145 | #endif |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | #ifndef SC_NO_CUTPASTE |
| 150 | |
| 151 | void |
| 152 | sc_draw_mouse_image(scr_stat *scp) |
| 153 | { |
| 154 | if (ISGRAPHSC(scp)) |
| 155 | return; |
| 156 | |
| 157 | ++scp->sc->videoio_in_progress; |
| 158 | (*scp->rndr->draw_mouse)(scp, scp->mouse_xpos, scp->mouse_ypos, TRUE); |
| 159 | scp->mouse_oldpos = scp->mouse_pos; |
| 160 | scp->mouse_oldxpos = scp->mouse_xpos; |
| 161 | scp->mouse_oldypos = scp->mouse_ypos; |
| 162 | scp->status |= MOUSE_VISIBLE; |
| 163 | --scp->sc->videoio_in_progress; |
| 164 | } |
| 165 | |
| 166 | void |
| 167 | sc_remove_mouse_image(scr_stat *scp) |
| 168 | { |
| 169 | int size; |
| 170 | int i; |
| 171 | |
| 172 | if (ISGRAPHSC(scp)) |
| 173 | return; |
| 174 | |
| 175 | ++scp->sc->videoio_in_progress; |
| 176 | (*scp->rndr->draw_mouse)(scp, |
| 177 | (scp->mouse_oldpos%scp->xsize + scp->xoff)*8, |
| 178 | (scp->mouse_oldpos/scp->xsize + scp->yoff) |
| 179 | * scp->font_size, |
| 180 | FALSE); |
| 181 | size = scp->xsize*scp->ysize; |
| 182 | i = scp->mouse_oldpos; |
| 183 | mark_for_update(scp, i); |
| 184 | mark_for_update(scp, i); |
| 185 | if (i + scp->xsize + 1 < size) { |
| 186 | mark_for_update(scp, i + scp->xsize + 1); |
| 187 | } else if (i + scp->xsize < size) { |
| 188 | mark_for_update(scp, i + scp->xsize); |
| 189 | } else if (i + 1 < size) { |
| 190 | mark_for_update(scp, i + 1); |
| 191 | } |
| 192 | scp->status &= ~MOUSE_VISIBLE; |
| 193 | --scp->sc->videoio_in_progress; |
| 194 | } |
| 195 | |
| 196 | int |
| 197 | sc_inside_cutmark(scr_stat *scp, int pos) |
| 198 | { |
| 199 | int start; |
| 200 | int end; |
| 201 | |
| 202 | if (scp->mouse_cut_end < 0) |
| 203 | return FALSE; |
| 204 | if (scp->mouse_cut_start <= scp->mouse_cut_end) { |
| 205 | start = scp->mouse_cut_start; |
| 206 | end = scp->mouse_cut_end; |
| 207 | } else { |
| 208 | start = scp->mouse_cut_end; |
| 209 | end = scp->mouse_cut_start - 1; |
| 210 | } |
| 211 | return ((start <= pos) && (pos <= end)); |
| 212 | } |
| 213 | |
| 214 | void |
| 215 | sc_remove_cutmarking(scr_stat *scp) |
| 216 | { |
| 217 | crit_enter(); |
| 218 | if (scp->mouse_cut_end >= 0) { |
| 219 | mark_for_update(scp, scp->mouse_cut_start); |
| 220 | mark_for_update(scp, scp->mouse_cut_end); |
| 221 | } |
| 222 | scp->mouse_cut_start = scp->xsize*scp->ysize; |
| 223 | scp->mouse_cut_end = -1; |
| 224 | crit_exit(); |
| 225 | scp->status &= ~MOUSE_CUTTING; |
| 226 | } |
| 227 | |
| 228 | void |
| 229 | sc_remove_all_cutmarkings(sc_softc_t *sc) |
| 230 | { |
| 231 | scr_stat *scp; |
| 232 | int i; |
| 233 | |
| 234 | /* delete cut markings in all vtys */ |
| 235 | for (i = 0; i < sc->vtys; ++i) { |
| 236 | scp = SC_STAT(sc->dev[i]); |
| 237 | if (scp == NULL) |
| 238 | continue; |
| 239 | sc_remove_cutmarking(scp); |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | void |
| 244 | sc_remove_all_mouse(sc_softc_t *sc) |
| 245 | { |
| 246 | scr_stat *scp; |
| 247 | int i; |
| 248 | |
| 249 | for (i = 0; i < sc->vtys; ++i) { |
| 250 | scp = SC_STAT(sc->dev[i]); |
| 251 | if (scp == NULL) |
| 252 | continue; |
| 253 | if (scp->status & MOUSE_VISIBLE) { |
| 254 | scp->status &= ~MOUSE_VISIBLE; |
| 255 | mark_all(scp); |
| 256 | } |
| 257 | } |
| 258 | } |
| 259 | |
| 260 | #define IS_SPACE_CHAR(c) (((c) & 0xff) == ' ') |
| 261 | |
| 262 | /* skip spaces to right */ |
| 263 | static int |
| 264 | skip_spc_right(scr_stat *scp, int p) |
| 265 | { |
| 266 | int c; |
| 267 | int i; |
| 268 | |
| 269 | for (i = p % scp->xsize; i < scp->xsize; ++i) { |
| 270 | c = sc_vtb_getc(&scp->vtb, p); |
| 271 | if (!IS_SPACE_CHAR(c)) |
| 272 | break; |
| 273 | ++p; |
| 274 | } |
| 275 | return i; |
| 276 | } |
| 277 | |
| 278 | /* skip spaces to left */ |
| 279 | static int |
| 280 | skip_spc_left(scr_stat *scp, int p) |
| 281 | { |
| 282 | int c; |
| 283 | int i; |
| 284 | |
| 285 | for (i = p-- % scp->xsize - 1; i >= 0; --i) { |
| 286 | c = sc_vtb_getc(&scp->vtb, p); |
| 287 | if (!IS_SPACE_CHAR(c)) |
| 288 | break; |
| 289 | --p; |
| 290 | } |
| 291 | return i; |
| 292 | } |
| 293 | |
| 294 | /* copy marked region to the cut buffer */ |
| 295 | static void |
| 296 | mouse_cut(scr_stat *scp) |
| 297 | { |
| 298 | int start; |
| 299 | int end; |
| 300 | int from; |
| 301 | int to; |
| 302 | int blank; |
| 303 | int c; |
| 304 | int p; |
| 305 | int i; |
| 306 | |
| 307 | start = scp->mouse_cut_start; |
| 308 | if (scp->mouse_pos >= start) { |
| 309 | from = start; |
| 310 | to = end = scp->mouse_pos; |
| 311 | } else { |
| 312 | from = end = scp->mouse_pos; |
| 313 | to = start - 1; |
| 314 | } |
| 315 | for (p = from, i = blank = 0; p <= to; ++p) { |
| 316 | cut_buffer[i] = sc_vtb_getc(&scp->vtb, p); |
| 317 | /* remember the position of the last non-space char */ |
| 318 | if (!IS_SPACE_CHAR(cut_buffer[i++])) |
| 319 | blank = i; /* the first space after the last non-space */ |
| 320 | /* trim trailing blank when crossing lines */ |
| 321 | if ((p % scp->xsize) == (scp->xsize - 1)) { |
| 322 | cut_buffer[blank] = '\r'; |
| 323 | i = blank + 1; |
| 324 | } |
| 325 | } |
| 326 | cut_buffer[i] = '\0'; |
| 327 | |
| 328 | /* scan towards the end of the last line */ |
| 329 | --p; |
| 330 | for (i = p % scp->xsize; i < scp->xsize; ++i) { |
| 331 | c = sc_vtb_getc(&scp->vtb, p); |
| 332 | if (!IS_SPACE_CHAR(c)) |
| 333 | break; |
| 334 | ++p; |
| 335 | } |
| 336 | /* if there is nothing but blank chars, trim them, but mark towards eol */ |
| 337 | if (i >= scp->xsize) { |
| 338 | if (end >= start) |
| 339 | to = end = p - 1; |
| 340 | else |
| 341 | to = start = p; |
| 342 | cut_buffer[blank++] = '\r'; |
| 343 | cut_buffer[blank] = '\0'; |
| 344 | } |
| 345 | |
| 346 | /* remove the current marking */ |
| 347 | crit_enter(); |
| 348 | if (scp->mouse_cut_start <= scp->mouse_cut_end) { |
| 349 | mark_for_update(scp, scp->mouse_cut_start); |
| 350 | mark_for_update(scp, scp->mouse_cut_end); |
| 351 | } else if (scp->mouse_cut_end >= 0) { |
| 352 | mark_for_update(scp, scp->mouse_cut_end); |
| 353 | mark_for_update(scp, scp->mouse_cut_start); |
| 354 | } |
| 355 | |
| 356 | /* mark the new region */ |
| 357 | scp->mouse_cut_start = start; |
| 358 | scp->mouse_cut_end = end; |
| 359 | mark_for_update(scp, from); |
| 360 | mark_for_update(scp, to); |
| 361 | crit_exit(); |
| 362 | } |
| 363 | |
| 364 | /* a mouse button is pressed, start cut operation */ |
| 365 | static void |
| 366 | mouse_cut_start(scr_stat *scp) |
| 367 | { |
| 368 | int i; |
| 369 | int j; |
| 370 | |
| 371 | if (scp->status & MOUSE_VISIBLE) { |
| 372 | i = scp->mouse_cut_start; |
| 373 | j = scp->mouse_cut_end; |
| 374 | sc_remove_all_cutmarkings(scp->sc); |
| 375 | if (scp->mouse_pos == i && i == j) { |
| 376 | cut_buffer[0] = '\0'; |
| 377 | } else if (skip_spc_right(scp, scp->mouse_pos) >= scp->xsize) { |
| 378 | /* if the pointer is on trailing blank chars, mark towards eol */ |
| 379 | i = skip_spc_left(scp, scp->mouse_pos) + 1; |
| 380 | crit_enter(); |
| 381 | scp->mouse_cut_start = |
| 382 | (scp->mouse_pos / scp->xsize) * scp->xsize + i; |
| 383 | scp->mouse_cut_end = |
| 384 | (scp->mouse_pos / scp->xsize + 1) * scp->xsize - 1; |
| 385 | crit_exit(); |
| 386 | cut_buffer[0] = '\r'; |
| 387 | cut_buffer[1] = '\0'; |
| 388 | scp->status |= MOUSE_CUTTING; |
| 389 | } else { |
| 390 | crit_enter(); |
| 391 | scp->mouse_cut_start = scp->mouse_pos; |
| 392 | scp->mouse_cut_end = scp->mouse_cut_start; |
| 393 | crit_exit(); |
| 394 | cut_buffer[0] = sc_vtb_getc(&scp->vtb, scp->mouse_cut_start); |
| 395 | cut_buffer[1] = '\0'; |
| 396 | scp->status |= MOUSE_CUTTING; |
| 397 | } |
| 398 | mark_all(scp); /* this is probably overkill XXX */ |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | /* end of cut operation */ |
| 403 | static void |
| 404 | mouse_cut_end(scr_stat *scp) |
| 405 | { |
| 406 | if (scp->status & MOUSE_VISIBLE) |
| 407 | scp->status &= ~MOUSE_CUTTING; |
| 408 | } |
| 409 | |
| 410 | /* copy a word under the mouse pointer */ |
| 411 | static void |
| 412 | mouse_cut_word(scr_stat *scp) |
| 413 | { |
| 414 | int start; |
| 415 | int end; |
| 416 | int sol; |
| 417 | int eol; |
| 418 | int c; |
| 419 | int i; |
| 420 | int j; |
| 421 | |
| 422 | /* |
| 423 | * Because we don't have locale information in the kernel, |
| 424 | * we only distinguish space char and non-space chars. Punctuation |
| 425 | * chars, symbols and other regular chars are all treated alike. |
| 426 | */ |
| 427 | if (scp->status & MOUSE_VISIBLE) { |
| 428 | /* remove the current cut mark */ |
| 429 | crit_enter(); |
| 430 | if (scp->mouse_cut_start <= scp->mouse_cut_end) { |
| 431 | mark_for_update(scp, scp->mouse_cut_start); |
| 432 | mark_for_update(scp, scp->mouse_cut_end); |
| 433 | } else if (scp->mouse_cut_end >= 0) { |
| 434 | mark_for_update(scp, scp->mouse_cut_end); |
| 435 | mark_for_update(scp, scp->mouse_cut_start); |
| 436 | } |
| 437 | scp->mouse_cut_start = scp->xsize*scp->ysize; |
| 438 | scp->mouse_cut_end = -1; |
| 439 | crit_exit(); |
| 440 | |
| 441 | sol = (scp->mouse_pos / scp->xsize) * scp->xsize; |
| 442 | eol = sol + scp->xsize; |
| 443 | c = sc_vtb_getc(&scp->vtb, scp->mouse_pos); |
| 444 | if (IS_SPACE_CHAR(c)) { |
| 445 | /* blank space */ |
| 446 | for (j = scp->mouse_pos; j >= sol; --j) { |
| 447 | c = sc_vtb_getc(&scp->vtb, j); |
| 448 | if (!IS_SPACE_CHAR(c)) |
| 449 | break; |
| 450 | } |
| 451 | start = ++j; |
| 452 | for (j = scp->mouse_pos; j < eol; ++j) { |
| 453 | c = sc_vtb_getc(&scp->vtb, j); |
| 454 | if (!IS_SPACE_CHAR(c)) |
| 455 | break; |
| 456 | } |
| 457 | end = j - 1; |
| 458 | } else { |
| 459 | /* non-space word */ |
| 460 | for (j = scp->mouse_pos; j >= sol; --j) { |
| 461 | c = sc_vtb_getc(&scp->vtb, j); |
| 462 | if (IS_SPACE_CHAR(c)) |
| 463 | break; |
| 464 | } |
| 465 | start = ++j; |
| 466 | for (j = scp->mouse_pos; j < eol; ++j) { |
| 467 | c = sc_vtb_getc(&scp->vtb, j); |
| 468 | if (IS_SPACE_CHAR(c)) |
| 469 | break; |
| 470 | } |
| 471 | end = j - 1; |
| 472 | } |
| 473 | |
| 474 | /* copy the found word */ |
| 475 | for (i = 0, j = start; j <= end; ++j) |
| 476 | cut_buffer[i++] = sc_vtb_getc(&scp->vtb, j); |
| 477 | cut_buffer[i] = '\0'; |
| 478 | scp->status |= MOUSE_CUTTING; |
| 479 | |
| 480 | /* mark the region */ |
| 481 | crit_enter(); |
| 482 | scp->mouse_cut_start = start; |
| 483 | scp->mouse_cut_end = end; |
| 484 | mark_for_update(scp, start); |
| 485 | mark_for_update(scp, end); |
| 486 | crit_exit(); |
| 487 | } |
| 488 | } |
| 489 | |
| 490 | /* copy a line under the mouse pointer */ |
| 491 | static void |
| 492 | mouse_cut_line(scr_stat *scp) |
| 493 | { |
| 494 | int i; |
| 495 | int j; |
| 496 | |
| 497 | if (scp->status & MOUSE_VISIBLE) { |
| 498 | /* remove the current cut mark */ |
| 499 | crit_enter(); |
| 500 | if (scp->mouse_cut_start <= scp->mouse_cut_end) { |
| 501 | mark_for_update(scp, scp->mouse_cut_start); |
| 502 | mark_for_update(scp, scp->mouse_cut_end); |
| 503 | } else if (scp->mouse_cut_end >= 0) { |
| 504 | mark_for_update(scp, scp->mouse_cut_end); |
| 505 | mark_for_update(scp, scp->mouse_cut_start); |
| 506 | } |
| 507 | |
| 508 | /* mark the entire line */ |
| 509 | scp->mouse_cut_start = |
| 510 | (scp->mouse_pos / scp->xsize) * scp->xsize; |
| 511 | scp->mouse_cut_end = scp->mouse_cut_start + scp->xsize - 1; |
| 512 | mark_for_update(scp, scp->mouse_cut_start); |
| 513 | mark_for_update(scp, scp->mouse_cut_end); |
| 514 | crit_exit(); |
| 515 | |
| 516 | /* copy the line into the cut buffer */ |
| 517 | for (i = 0, j = scp->mouse_cut_start; j <= scp->mouse_cut_end; ++j) |
| 518 | cut_buffer[i++] = sc_vtb_getc(&scp->vtb, j); |
| 519 | cut_buffer[i++] = '\r'; |
| 520 | cut_buffer[i] = '\0'; |
| 521 | scp->status |= MOUSE_CUTTING; |
| 522 | } |
| 523 | } |
| 524 | |
| 525 | /* extend the marked region to the mouse pointer position */ |
| 526 | static void |
| 527 | mouse_cut_extend(scr_stat *scp) |
| 528 | { |
| 529 | int start; |
| 530 | int end; |
| 531 | |
| 532 | if ((scp->status & MOUSE_VISIBLE) && !(scp->status & MOUSE_CUTTING) |
| 533 | && (scp->mouse_cut_end >= 0)) { |
| 534 | if (scp->mouse_cut_start <= scp->mouse_cut_end) { |
| 535 | start = scp->mouse_cut_start; |
| 536 | end = scp->mouse_cut_end; |
| 537 | } else { |
| 538 | start = scp->mouse_cut_end; |
| 539 | end = scp->mouse_cut_start - 1; |
| 540 | } |
| 541 | crit_enter(); |
| 542 | if (scp->mouse_pos > end) { |
| 543 | scp->mouse_cut_start = start; |
| 544 | scp->mouse_cut_end = end; |
| 545 | } else if (scp->mouse_pos < start) { |
| 546 | scp->mouse_cut_start = end + 1; |
| 547 | scp->mouse_cut_end = start; |
| 548 | } else { |
| 549 | if (scp->mouse_pos - start > end + 1 - scp->mouse_pos) { |
| 550 | scp->mouse_cut_start = start; |
| 551 | scp->mouse_cut_end = end; |
| 552 | } else { |
| 553 | scp->mouse_cut_start = end + 1; |
| 554 | scp->mouse_cut_end = start; |
| 555 | } |
| 556 | } |
| 557 | crit_exit(); |
| 558 | mouse_cut(scp); |
| 559 | scp->status |= MOUSE_CUTTING; |
| 560 | } |
| 561 | } |
| 562 | |
| 563 | /* paste cut buffer contents into the current vty */ |
| 564 | static void |
| 565 | mouse_paste(scr_stat *scp) |
| 566 | { |
| 567 | if (scp->status & MOUSE_VISIBLE) |
| 568 | sc_paste(scp, cut_buffer, strlen(cut_buffer)); |
| 569 | } |
| 570 | |
| 571 | #endif /* SC_NO_CUTPASTE */ |
| 572 | |
| 573 | static void |
| 574 | sc_mouse_exit1_proc(struct proc *p) |
| 575 | { |
| 576 | scr_stat *scp; |
| 577 | |
| 578 | scp = p->p_drv_priv; |
| 579 | KKASSERT(scp != NULL); |
| 580 | |
| 581 | get_mplock(); |
| 582 | KKASSERT(scp->mouse_proc == p); |
| 583 | KKASSERT(scp->mouse_pid == p->p_pid); |
| 584 | |
| 585 | scp->mouse_signal = 0; |
| 586 | scp->mouse_proc = NULL; |
| 587 | scp->mouse_pid = 0; |
| 588 | rel_mplock(); |
| 589 | |
| 590 | PRELE(p); |
| 591 | p->p_flags &= ~P_SCMOUSE; |
| 592 | p->p_drv_priv = NULL; |
| 593 | } |
| 594 | |
| 595 | /* |
| 596 | * sc_mouse_exit1: |
| 597 | * |
| 598 | * Handle exit1 for processes registered as MOUSE_MODE handlers. |
| 599 | * We must remove a process hold, established when MOUSE_MODE |
| 600 | * was enabled. |
| 601 | */ |
| 602 | static void |
| 603 | sc_mouse_exit1(struct thread *td) |
| 604 | { |
| 605 | struct proc *p; |
| 606 | |
| 607 | p = td->td_proc; |
| 608 | KKASSERT(p != NULL); |
| 609 | |
| 610 | if ((p->p_flags & P_SCMOUSE) == 0) |
| 611 | return; |
| 612 | |
| 613 | |
| 614 | sc_mouse_exit1_proc(p); |
| 615 | } |
| 616 | |
| 617 | int |
| 618 | sc_mouse_ioctl(struct tty *tp, u_long cmd, caddr_t data, int flag) |
| 619 | { |
| 620 | mouse_info_t *mouse; |
| 621 | scr_stat *cur_scp; |
| 622 | scr_stat *scp; |
| 623 | int f; |
| 624 | |
| 625 | scp = SC_STAT(tp->t_dev); |
| 626 | |
| 627 | switch (cmd) { |
| 628 | |
| 629 | case CONS_MOUSECTL: /* control mouse arrow */ |
| 630 | mouse = (mouse_info_t*) data; |
| 631 | cur_scp = scp->sc->cur_scp; |
| 632 | |
| 633 | switch (mouse->operation) { |
| 634 | /* |
| 635 | * Setup a process to receive signals on mouse events. |
| 636 | */ |
| 637 | case MOUSE_MODE: |
| 638 | get_mplock(); |
| 639 | |
| 640 | if (!ISSIGVALID(mouse->u.mode.signal)) { |
| 641 | /* Setting MOUSE_MODE w/ an invalid signal is used to disarm */ |
| 642 | if (scp->mouse_proc == curproc) { |
| 643 | sc_mouse_exit1_proc(curproc); |
| 644 | rel_mplock(); |
| 645 | return 0; |
| 646 | } else { |
| 647 | rel_mplock(); |
| 648 | return EINVAL; |
| 649 | } |
| 650 | } else { |
| 651 | /* Only one mouse process per syscons */ |
| 652 | if (scp->mouse_proc) { |
| 653 | rel_mplock(); |
| 654 | return EINVAL; |
| 655 | } |
| 656 | |
| 657 | /* Only one syscons signal source per process */ |
| 658 | if (curproc->p_flags & P_SCMOUSE) { |
| 659 | rel_mplock(); |
| 660 | return EINVAL; |
| 661 | } |
| 662 | |
| 663 | /* |
| 664 | * Process is stabilized by a hold, which is removed from |
| 665 | * sc_mouse_exit1. scp's mouse_{signal,proc,pid} fields |
| 666 | * are synchronized by the MP Lock. |
| 667 | */ |
| 668 | scp->mouse_signal = mouse->u.mode.signal; |
| 669 | scp->mouse_proc = curproc; |
| 670 | scp->mouse_pid = curproc->p_pid; |
| 671 | curproc->p_flags |= P_SCMOUSE; |
| 672 | KKASSERT(curproc->p_drv_priv == NULL); |
| 673 | curproc->p_drv_priv = scp; |
| 674 | PHOLD(curproc); |
| 675 | |
| 676 | rel_mplock(); |
| 677 | return 0; |
| 678 | } |
| 679 | /*NOTREACHED*/ |
| 680 | break; |
| 681 | |
| 682 | case MOUSE_SHOW: |
| 683 | crit_enter(); |
| 684 | if (!(scp->sc->flags & SC_MOUSE_ENABLED)) { |
| 685 | scp->sc->flags |= SC_MOUSE_ENABLED; |
| 686 | cur_scp->status &= ~MOUSE_HIDDEN; |
| 687 | if (!ISGRAPHSC(cur_scp)) |
| 688 | mark_all(cur_scp); |
| 689 | crit_exit(); |
| 690 | return 0; |
| 691 | } else { |
| 692 | crit_exit(); |
| 693 | return EINVAL; |
| 694 | } |
| 695 | break; |
| 696 | |
| 697 | case MOUSE_HIDE: |
| 698 | crit_enter(); |
| 699 | if (scp->sc->flags & SC_MOUSE_ENABLED) { |
| 700 | scp->sc->flags &= ~SC_MOUSE_ENABLED; |
| 701 | sc_remove_all_mouse(scp->sc); |
| 702 | crit_exit(); |
| 703 | return 0; |
| 704 | } else { |
| 705 | crit_exit(); |
| 706 | return EINVAL; |
| 707 | } |
| 708 | break; |
| 709 | |
| 710 | case MOUSE_MOVEABS: |
| 711 | crit_enter(); |
| 712 | scp->mouse_xpos = mouse->u.data.x; |
| 713 | scp->mouse_ypos = mouse->u.data.y; |
| 714 | set_mouse_pos(scp); |
| 715 | crit_exit(); |
| 716 | break; |
| 717 | |
| 718 | case MOUSE_MOVEREL: |
| 719 | crit_enter(); |
| 720 | scp->mouse_xpos += mouse->u.data.x; |
| 721 | scp->mouse_ypos += mouse->u.data.y; |
| 722 | set_mouse_pos(scp); |
| 723 | crit_exit(); |
| 724 | break; |
| 725 | |
| 726 | case MOUSE_GETINFO: |
| 727 | mouse->u.data.x = scp->mouse_xpos; |
| 728 | mouse->u.data.y = scp->mouse_ypos; |
| 729 | mouse->u.data.z = 0; |
| 730 | mouse->u.data.buttons = scp->mouse_buttons; |
| 731 | return 0; |
| 732 | |
| 733 | case MOUSE_ACTION: |
| 734 | case MOUSE_MOTION_EVENT: |
| 735 | /* send out mouse event on /dev/sysmouse */ |
| 736 | #if 0 |
| 737 | /* this should maybe only be settable from /dev/consolectl SOS */ |
| 738 | if (SC_VTY(tp->t_dev) != SC_CONSOLECTL) |
| 739 | return ENOTTY; |
| 740 | #endif |
| 741 | crit_enter(); |
| 742 | if (mouse->u.data.x != 0 || mouse->u.data.y != 0) { |
| 743 | cur_scp->mouse_xpos += mouse->u.data.x; |
| 744 | cur_scp->mouse_ypos += mouse->u.data.y; |
| 745 | set_mouse_pos(cur_scp); |
| 746 | } |
| 747 | f = 0; |
| 748 | if (mouse->operation == MOUSE_ACTION) { |
| 749 | f = cur_scp->mouse_buttons ^ mouse->u.data.buttons; |
| 750 | cur_scp->mouse_buttons = mouse->u.data.buttons; |
| 751 | } |
| 752 | crit_exit(); |
| 753 | |
| 754 | if (sysmouse_event(mouse) == 0) |
| 755 | return 0; |
| 756 | |
| 757 | /* |
| 758 | * If any buttons are down or the mouse has moved a lot, |
| 759 | * stop the screen saver. |
| 760 | */ |
| 761 | if (((mouse->operation == MOUSE_ACTION) && mouse->u.data.buttons) |
| 762 | || (mouse->u.data.x*mouse->u.data.x |
| 763 | + mouse->u.data.y*mouse->u.data.y |
| 764 | >= SC_WAKEUP_DELTA*SC_WAKEUP_DELTA)) { |
| 765 | sc_touch_scrn_saver(); |
| 766 | } |
| 767 | |
| 768 | cur_scp->status &= ~MOUSE_HIDDEN; |
| 769 | |
| 770 | get_mplock(); |
| 771 | if (cur_scp->mouse_signal) { |
| 772 | KKASSERT(cur_scp->mouse_proc != NULL); |
| 773 | ksignal(cur_scp->mouse_proc, cur_scp->mouse_signal); |
| 774 | rel_mplock(); |
| 775 | break; |
| 776 | } |
| 777 | rel_mplock(); |
| 778 | |
| 779 | if (ISGRAPHSC(cur_scp) || (cut_buffer == NULL)) |
| 780 | break; |
| 781 | |
| 782 | #ifndef SC_NO_CUTPASTE |
| 783 | if ((mouse->operation == MOUSE_ACTION) && f) { |
| 784 | /* process button presses */ |
| 785 | if (cur_scp->mouse_buttons & MOUSE_BUTTON1DOWN) |
| 786 | mouse_cut_start(cur_scp); |
| 787 | else |
| 788 | mouse_cut_end(cur_scp); |
| 789 | if (cur_scp->mouse_buttons & MOUSE_BUTTON2DOWN || |
| 790 | cur_scp->mouse_buttons & MOUSE_BUTTON3DOWN) |
| 791 | mouse_paste(cur_scp); |
| 792 | } |
| 793 | #endif /* SC_NO_CUTPASTE */ |
| 794 | break; |
| 795 | |
| 796 | case MOUSE_BUTTON_EVENT: |
| 797 | if ((mouse->u.event.id & MOUSE_BUTTONS) == 0) |
| 798 | return EINVAL; |
| 799 | if (mouse->u.event.value < 0) |
| 800 | return EINVAL; |
| 801 | #if 0 |
| 802 | /* this should maybe only be settable from /dev/consolectl SOS */ |
| 803 | if (SC_VTY(tp->t_dev) != SC_CONSOLECTL) |
| 804 | return ENOTTY; |
| 805 | #endif |
| 806 | if (mouse->u.event.value > 0) |
| 807 | cur_scp->mouse_buttons |= mouse->u.event.id; |
| 808 | else |
| 809 | cur_scp->mouse_buttons &= ~mouse->u.event.id; |
| 810 | |
| 811 | if (sysmouse_event(mouse) == 0) |
| 812 | return 0; |
| 813 | |
| 814 | /* if a button is held down, stop the screen saver */ |
| 815 | if (mouse->u.event.value > 0) |
| 816 | sc_touch_scrn_saver(); |
| 817 | |
| 818 | cur_scp->status &= ~MOUSE_HIDDEN; |
| 819 | |
| 820 | get_mplock(); |
| 821 | if (cur_scp->mouse_signal) { |
| 822 | KKASSERT(cur_scp->mouse_proc != NULL); |
| 823 | ksignal(cur_scp->mouse_proc, cur_scp->mouse_signal); |
| 824 | rel_mplock(); |
| 825 | break; |
| 826 | } |
| 827 | rel_mplock(); |
| 828 | |
| 829 | if (ISGRAPHSC(cur_scp) || (cut_buffer == NULL)) |
| 830 | break; |
| 831 | |
| 832 | #ifndef SC_NO_CUTPASTE |
| 833 | switch (mouse->u.event.id) { |
| 834 | case MOUSE_BUTTON1DOWN: |
| 835 | switch (mouse->u.event.value % 4) { |
| 836 | case 0: /* up */ |
| 837 | mouse_cut_end(cur_scp); |
| 838 | break; |
| 839 | case 1: /* single click: start cut operation */ |
| 840 | mouse_cut_start(cur_scp); |
| 841 | break; |
| 842 | case 2: /* double click: cut a word */ |
| 843 | mouse_cut_word(cur_scp); |
| 844 | mouse_cut_end(cur_scp); |
| 845 | break; |
| 846 | case 3: /* triple click: cut a line */ |
| 847 | mouse_cut_line(cur_scp); |
| 848 | mouse_cut_end(cur_scp); |
| 849 | break; |
| 850 | } |
| 851 | break; |
| 852 | case SC_MOUSE_PASTEBUTTON: |
| 853 | switch (mouse->u.event.value) { |
| 854 | case 0: /* up */ |
| 855 | break; |
| 856 | default: |
| 857 | mouse_paste(cur_scp); |
| 858 | break; |
| 859 | } |
| 860 | break; |
| 861 | case SC_MOUSE_EXTENDBUTTON: |
| 862 | switch (mouse->u.event.value) { |
| 863 | case 0: /* up */ |
| 864 | if (!(cur_scp->mouse_buttons & MOUSE_BUTTON1DOWN)) |
| 865 | mouse_cut_end(cur_scp); |
| 866 | break; |
| 867 | default: |
| 868 | mouse_cut_extend(cur_scp); |
| 869 | break; |
| 870 | } |
| 871 | break; |
| 872 | } |
| 873 | #endif /* SC_NO_CUTPASTE */ |
| 874 | break; |
| 875 | |
| 876 | case MOUSE_MOUSECHAR: |
| 877 | if (mouse->u.mouse_char < 0) { |
| 878 | mouse->u.mouse_char = scp->sc->mouse_char; |
| 879 | } else { |
| 880 | if (mouse->u.mouse_char >= (unsigned char)-1 - 4) |
| 881 | return EINVAL; |
| 882 | crit_enter(); |
| 883 | sc_remove_all_mouse(scp->sc); |
| 884 | #ifndef SC_NO_FONT_LOADING |
| 885 | if (ISTEXTSC(cur_scp) && (cur_scp->font != NULL)) |
| 886 | sc_load_font(cur_scp, 0, cur_scp->font_size, cur_scp->font, |
| 887 | cur_scp->sc->mouse_char, 4); |
| 888 | #endif |
| 889 | scp->sc->mouse_char = mouse->u.mouse_char; |
| 890 | crit_exit(); |
| 891 | } |
| 892 | break; |
| 893 | |
| 894 | default: |
| 895 | return EINVAL; |
| 896 | } |
| 897 | |
| 898 | return 0; |
| 899 | } |
| 900 | |
| 901 | return ENOIOCTL; |
| 902 | } |
| 903 | |
| 904 | void |
| 905 | sc_mouse_init(void *unused) |
| 906 | { |
| 907 | at_exit(sc_mouse_exit1); |
| 908 | } |
| 909 | |
| 910 | void |
| 911 | sc_mouse_uninit(void *unused) |
| 912 | { |
| 913 | } |
| 914 | |
| 915 | SYSINIT(sc_mouse_init, SI_SUB_DRIVERS, SI_ORDER_ANY, sc_mouse_init, NULL); |
| 916 | SYSUNINIT(sc_mouse_uninit, SI_SUB_DRIVERS, SI_ORDER_ANY, sc_mouse_uninit, NULL); |
| 917 | |
| 918 | #endif /* SC_NO_SYSMOUSE */ |