1 /* $OpenBSD: popup.c,v 1.42 2021/10/25 09:38:36 nicm Exp $ */ 2 3 /* 4 * Copyright (c) 2020 Nicholas Marriott <nicholas.marriott@gmail.com> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER 15 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 16 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/types.h> 20 #include <sys/wait.h> 21 22 #include <paths.h> 23 #include <signal.h> 24 #include <stdlib.h> 25 #include <string.h> 26 #include <unistd.h> 27 28 #include "tmux.h" 29 30 struct popup_data { 31 struct client *c; 32 struct cmdq_item *item; 33 int flags; 34 char *title; 35 36 struct grid_cell border_cell; 37 enum box_lines border_lines; 38 39 struct screen s; 40 struct grid_cell defaults; 41 struct colour_palette palette; 42 43 struct job *job; 44 struct input_ctx *ictx; 45 int status; 46 popup_close_cb cb; 47 void *arg; 48 49 struct menu *menu; 50 struct menu_data *md; 51 int close; 52 53 /* Current position and size. */ 54 u_int px; 55 u_int py; 56 u_int sx; 57 u_int sy; 58 59 /* Preferred position and size. */ 60 u_int ppx; 61 u_int ppy; 62 u_int psx; 63 u_int psy; 64 65 enum { OFF, MOVE, SIZE } dragging; 66 u_int dx; 67 u_int dy; 68 69 u_int lx; 70 u_int ly; 71 u_int lb; 72 }; 73 74 struct popup_editor { 75 char *path; 76 popup_finish_edit_cb cb; 77 void *arg; 78 }; 79 80 static const struct menu_item popup_menu_items[] = { 81 { "Close", 'q', NULL }, 82 { "#{?buffer_name,Paste #[underscore]#{buffer_name},}", 'p', NULL }, 83 { "", KEYC_NONE, NULL }, 84 { "Fill Space", 'F', NULL }, 85 { "Centre", 'C', NULL }, 86 { "", KEYC_NONE, NULL }, 87 { "To Horizontal Pane", 'h', NULL }, 88 { "To Vertical Pane", 'v', NULL }, 89 90 { NULL, KEYC_NONE, NULL } 91 }; 92 93 static const struct menu_item popup_internal_menu_items[] = { 94 { "Close", 'q', NULL }, 95 { "", KEYC_NONE, NULL }, 96 { "Fill Space", 'F', NULL }, 97 { "Centre", 'C', NULL }, 98 99 { NULL, KEYC_NONE, NULL } 100 }; 101 102 static void 103 popup_redraw_cb(const struct tty_ctx *ttyctx) 104 { 105 struct popup_data *pd = ttyctx->arg; 106 107 pd->c->flags |= CLIENT_REDRAWOVERLAY; 108 } 109 110 static int 111 popup_set_client_cb(struct tty_ctx *ttyctx, struct client *c) 112 { 113 struct popup_data *pd = ttyctx->arg; 114 115 if (c != pd->c) 116 return (0); 117 if (pd->c->flags & CLIENT_REDRAWOVERLAY) 118 return (0); 119 120 ttyctx->bigger = 0; 121 ttyctx->wox = 0; 122 ttyctx->woy = 0; 123 ttyctx->wsx = c->tty.sx; 124 ttyctx->wsy = c->tty.sy; 125 126 if (pd->border_lines == BOX_LINES_NONE) { 127 ttyctx->xoff = ttyctx->rxoff = pd->px; 128 ttyctx->yoff = ttyctx->ryoff = pd->py; 129 } else { 130 ttyctx->xoff = ttyctx->rxoff = pd->px + 1; 131 ttyctx->yoff = ttyctx->ryoff = pd->py + 1; 132 } 133 134 return (1); 135 } 136 137 static void 138 popup_init_ctx_cb(struct screen_write_ctx *ctx, struct tty_ctx *ttyctx) 139 { 140 struct popup_data *pd = ctx->arg; 141 142 memcpy(&ttyctx->defaults, &pd->defaults, sizeof ttyctx->defaults); 143 ttyctx->palette = &pd->palette; 144 ttyctx->redraw_cb = popup_redraw_cb; 145 ttyctx->set_client_cb = popup_set_client_cb; 146 ttyctx->arg = pd; 147 } 148 149 static struct screen * 150 popup_mode_cb(__unused struct client *c, void *data, u_int *cx, u_int *cy) 151 { 152 struct popup_data *pd = data; 153 154 if (pd->md != NULL) 155 return (menu_mode_cb(c, pd->md, cx, cy)); 156 157 if (pd->border_lines == BOX_LINES_NONE) { 158 *cx = pd->px + pd->s.cx; 159 *cy = pd->py + pd->s.cy; 160 } else { 161 *cx = pd->px + 1 + pd->s.cx; 162 *cy = pd->py + 1 + pd->s.cy; 163 } 164 return (&pd->s); 165 } 166 167 /* Return parts of the input range which are not obstructed by the popup. */ 168 static void 169 popup_check_cb(struct client* c, void *data, u_int px, u_int py, u_int nx, 170 struct overlay_ranges *r) 171 { 172 struct popup_data *pd = data; 173 struct overlay_ranges or[2]; 174 u_int i, j, k = 0; 175 176 if (pd->md != NULL) { 177 /* Check each returned range for the menu against the popup. */ 178 menu_check_cb(c, pd->md, px, py, nx, r); 179 for (i = 0; i < 2; i++) { 180 server_client_overlay_range(pd->px, pd->py, pd->sx, 181 pd->sy, r->px[i], py, r->nx[i], &or[i]); 182 } 183 184 /* 185 * or has up to OVERLAY_MAX_RANGES non-overlapping ranges, 186 * ordered from left to right. Collect them in the output. 187 */ 188 for (i = 0; i < 2; i++) { 189 /* Each or[i] only has 2 ranges. */ 190 for (j = 0; j < 2; j++) { 191 if (or[i].nx[j] > 0) { 192 r->px[k] = or[i].px[j]; 193 r->nx[k] = or[i].nx[j]; 194 k++; 195 } 196 } 197 } 198 199 /* Zero remaining ranges if any. */ 200 for (i = k; i < OVERLAY_MAX_RANGES; i++) { 201 r->px[i] = 0; 202 r->nx[i] = 0; 203 } 204 205 return; 206 } 207 208 server_client_overlay_range(pd->px, pd->py, pd->sx, pd->sy, px, py, nx, 209 r); 210 } 211 212 static void 213 popup_draw_cb(struct client *c, void *data, struct screen_redraw_ctx *rctx) 214 { 215 struct popup_data *pd = data; 216 struct tty *tty = &c->tty; 217 struct screen s; 218 struct screen_write_ctx ctx; 219 u_int i, px = pd->px, py = pd->py; 220 struct colour_palette *palette = &pd->palette; 221 struct grid_cell defaults; 222 223 screen_init(&s, pd->sx, pd->sy, 0); 224 screen_write_start(&ctx, &s); 225 screen_write_clearscreen(&ctx, 8); 226 227 if (pd->border_lines == BOX_LINES_NONE) { 228 screen_write_cursormove(&ctx, 0, 0, 0); 229 screen_write_fast_copy(&ctx, &pd->s, 0, 0, pd->sx, pd->sy); 230 } else if (pd->sx > 2 && pd->sy > 2) { 231 screen_write_box(&ctx, pd->sx, pd->sy, pd->border_lines, 232 &pd->border_cell, pd->title); 233 screen_write_cursormove(&ctx, 1, 1, 0); 234 screen_write_fast_copy(&ctx, &pd->s, 0, 0, pd->sx - 2, 235 pd->sy - 2); 236 } 237 screen_write_stop(&ctx); 238 239 memcpy(&defaults, &pd->defaults, sizeof defaults); 240 if (defaults.fg == 8) 241 defaults.fg = palette->fg; 242 if (defaults.bg == 8) 243 defaults.bg = palette->bg; 244 245 if (pd->md != NULL) { 246 c->overlay_check = menu_check_cb; 247 c->overlay_data = pd->md; 248 } else { 249 c->overlay_check = NULL; 250 c->overlay_data = NULL; 251 } 252 for (i = 0; i < pd->sy; i++) { 253 tty_draw_line(tty, &s, 0, i, pd->sx, px, py + i, &defaults, 254 palette); 255 } 256 if (pd->md != NULL) { 257 c->overlay_check = NULL; 258 c->overlay_data = NULL; 259 menu_draw_cb(c, pd->md, rctx); 260 } 261 c->overlay_check = popup_check_cb; 262 c->overlay_data = pd; 263 } 264 265 static void 266 popup_free_cb(struct client *c, void *data) 267 { 268 struct popup_data *pd = data; 269 struct cmdq_item *item = pd->item; 270 271 if (pd->md != NULL) 272 menu_free_cb(c, pd->md); 273 274 if (pd->cb != NULL) 275 pd->cb(pd->status, pd->arg); 276 277 if (item != NULL) { 278 if (cmdq_get_client(item) != NULL && 279 cmdq_get_client(item)->session == NULL) 280 cmdq_get_client(item)->retval = pd->status; 281 cmdq_continue(item); 282 } 283 server_client_unref(pd->c); 284 285 if (pd->job != NULL) 286 job_free(pd->job); 287 input_free(pd->ictx); 288 289 screen_free(&pd->s); 290 colour_palette_free(&pd->palette); 291 292 free(pd->title); 293 free(pd); 294 } 295 296 static void 297 popup_resize_cb(__unused struct client *c, void *data) 298 { 299 struct popup_data *pd = data; 300 struct tty *tty = &c->tty; 301 302 if (pd == NULL) 303 return; 304 if (pd->md != NULL) 305 menu_free_cb(c, pd->md); 306 307 /* Adjust position and size. */ 308 if (pd->psy > tty->sy) 309 pd->sy = tty->sy; 310 else 311 pd->sy = pd->psy; 312 if (pd->psx > tty->sx) 313 pd->sx = tty->sx; 314 else 315 pd->sx = pd->psx; 316 if (pd->ppy + pd->sy > tty->sy) 317 pd->py = tty->sy - pd->sy; 318 else 319 pd->py = pd->ppy; 320 if (pd->ppx + pd->sx > tty->sx) 321 pd->px = tty->sx - pd->sx; 322 else 323 pd->px = pd->ppx; 324 325 /* Avoid zero size screens. */ 326 if (pd->border_lines == BOX_LINES_NONE) { 327 screen_resize(&pd->s, pd->sx, pd->sy, 0); 328 if (pd->job != NULL) 329 job_resize(pd->job, pd->sx, pd->sy ); 330 } else if (pd->sx > 2 && pd->sy > 2) { 331 screen_resize(&pd->s, pd->sx - 2, pd->sy - 2, 0); 332 if (pd->job != NULL) 333 job_resize(pd->job, pd->sx - 2, pd->sy - 2); 334 } 335 } 336 337 static void 338 popup_make_pane(struct popup_data *pd, enum layout_type type) 339 { 340 struct client *c = pd->c; 341 struct session *s = c->session; 342 struct window *w = s->curw->window; 343 struct layout_cell *lc; 344 struct window_pane *wp = w->active, *new_wp; 345 u_int hlimit; 346 const char *shell; 347 348 window_unzoom(w); 349 350 lc = layout_split_pane(wp, type, -1, 0); 351 hlimit = options_get_number(s->options, "history-limit"); 352 new_wp = window_add_pane(wp->window, NULL, hlimit, 0); 353 layout_assign_pane(lc, new_wp, 0); 354 355 new_wp->fd = job_transfer(pd->job, &new_wp->pid, new_wp->tty, 356 sizeof new_wp->tty); 357 pd->job = NULL; 358 359 screen_set_title(&pd->s, new_wp->base.title); 360 screen_free(&new_wp->base); 361 memcpy(&new_wp->base, &pd->s, sizeof wp->base); 362 screen_resize(&new_wp->base, new_wp->sx, new_wp->sy, 1); 363 screen_init(&pd->s, 1, 1, 0); 364 365 shell = options_get_string(s->options, "default-shell"); 366 if (!checkshell(shell)) 367 shell = _PATH_BSHELL; 368 new_wp->shell = xstrdup(shell); 369 370 window_pane_set_event(new_wp); 371 window_set_active_pane(w, new_wp, 1); 372 new_wp->flags |= PANE_CHANGED; 373 374 pd->close = 1; 375 } 376 377 static void 378 popup_menu_done(__unused struct menu *menu, __unused u_int choice, 379 key_code key, void *data) 380 { 381 struct popup_data *pd = data; 382 struct client *c = pd->c; 383 struct paste_buffer *pb; 384 const char *buf; 385 size_t len; 386 387 pd->md = NULL; 388 pd->menu = NULL; 389 server_redraw_client(pd->c); 390 391 switch (key) { 392 case 'p': 393 pb = paste_get_top(NULL); 394 if (pb != NULL) { 395 buf = paste_buffer_data(pb, &len); 396 bufferevent_write(job_get_event(pd->job), buf, len); 397 } 398 break; 399 case 'F': 400 pd->sx = c->tty.sx; 401 pd->sy = c->tty.sy; 402 pd->px = 0; 403 pd->py = 0; 404 server_redraw_client(c); 405 break; 406 case 'C': 407 pd->px = c->tty.sx / 2 - pd->sx / 2; 408 pd->py = c->tty.sy / 2 - pd->sy / 2; 409 server_redraw_client(c); 410 break; 411 case 'h': 412 popup_make_pane(pd, LAYOUT_LEFTRIGHT); 413 break; 414 case 'v': 415 popup_make_pane(pd, LAYOUT_TOPBOTTOM); 416 break; 417 case 'q': 418 pd->close = 1; 419 break; 420 } 421 } 422 423 static void 424 popup_handle_drag(struct client *c, struct popup_data *pd, 425 struct mouse_event *m) 426 { 427 u_int px, py; 428 429 if (!MOUSE_DRAG(m->b)) 430 pd->dragging = OFF; 431 else if (pd->dragging == MOVE) { 432 if (m->x < pd->dx) 433 px = 0; 434 else if (m->x - pd->dx + pd->sx > c->tty.sx) 435 px = c->tty.sx - pd->sx; 436 else 437 px = m->x - pd->dx; 438 if (m->y < pd->dy) 439 py = 0; 440 else if (m->y - pd->dy + pd->sy > c->tty.sy) 441 py = c->tty.sy - pd->sy; 442 else 443 py = m->y - pd->dy; 444 pd->px = px; 445 pd->py = py; 446 pd->dx = m->x - pd->px; 447 pd->dy = m->y - pd->py; 448 pd->ppx = px; 449 pd->ppy = py; 450 server_redraw_client(c); 451 } else if (pd->dragging == SIZE) { 452 if (pd->border_lines == BOX_LINES_NONE) { 453 if (m->x < pd->px + 1) 454 return; 455 if (m->y < pd->py + 1) 456 return; 457 } else { 458 if (m->x < pd->px + 3) 459 return; 460 if (m->y < pd->py + 3) 461 return; 462 } 463 pd->sx = m->x - pd->px; 464 pd->sy = m->y - pd->py; 465 pd->psx = pd->sx; 466 pd->psy = pd->sy; 467 468 if (pd->border_lines == BOX_LINES_NONE) { 469 screen_resize(&pd->s, pd->sx, pd->sy, 0); 470 if (pd->job != NULL) 471 job_resize(pd->job, pd->sx, pd->sy); 472 } else { 473 screen_resize(&pd->s, pd->sx - 2, pd->sy - 2, 0); 474 if (pd->job != NULL) 475 job_resize(pd->job, pd->sx - 2, pd->sy - 2); 476 } 477 server_redraw_client(c); 478 } 479 } 480 481 static int 482 popup_key_cb(struct client *c, void *data, struct key_event *event) 483 { 484 struct popup_data *pd = data; 485 struct mouse_event *m = &event->m; 486 const char *buf; 487 size_t len; 488 u_int px, py, x; 489 enum { NONE, LEFT, RIGHT, TOP, BOTTOM } border = NONE; 490 491 if (pd->md != NULL) { 492 if (menu_key_cb(c, pd->md, event) == 1) { 493 pd->md = NULL; 494 pd->menu = NULL; 495 if (pd->close) 496 server_client_clear_overlay(c); 497 else 498 server_redraw_client(c); 499 } 500 return (0); 501 } 502 503 if (KEYC_IS_MOUSE(event->key)) { 504 if (pd->dragging != OFF) { 505 popup_handle_drag(c, pd, m); 506 goto out; 507 } 508 if (m->x < pd->px || 509 m->x > pd->px + pd->sx - 1 || 510 m->y < pd->py || 511 m->y > pd->py + pd->sy - 1) { 512 if (MOUSE_BUTTONS(m->b) == 2) 513 goto menu; 514 return (0); 515 } 516 if (pd->border_lines != BOX_LINES_NONE) { 517 if (m->x == pd->px) 518 border = LEFT; 519 else if (m->x == pd->px + pd->sx - 1) 520 border = RIGHT; 521 else if (m->y == pd->py) 522 border = TOP; 523 else if (m->y == pd->py + pd->sy - 1) 524 border = BOTTOM; 525 } 526 if ((m->b & MOUSE_MASK_MODIFIERS) == 0 && 527 MOUSE_BUTTONS(m->b) == 2 && 528 (border == LEFT || border == TOP)) 529 goto menu; 530 if (((m->b & MOUSE_MASK_MODIFIERS) == MOUSE_MASK_META) || 531 border != NONE) { 532 if (!MOUSE_DRAG(m->b)) 533 goto out; 534 if (MOUSE_BUTTONS(m->lb) == 0) 535 pd->dragging = MOVE; 536 else if (MOUSE_BUTTONS(m->lb) == 2) 537 pd->dragging = SIZE; 538 pd->dx = m->lx - pd->px; 539 pd->dy = m->ly - pd->py; 540 goto out; 541 } 542 } 543 if ((((pd->flags & (POPUP_CLOSEEXIT|POPUP_CLOSEEXITZERO)) == 0) || 544 pd->job == NULL) && 545 (event->key == '\033' || event->key == '\003')) 546 return (1); 547 if (pd->job != NULL) { 548 if (KEYC_IS_MOUSE(event->key)) { 549 /* Must be inside, checked already. */ 550 if (pd->border_lines == BOX_LINES_NONE) { 551 px = m->x - pd->px; 552 py = m->y - pd->py; 553 } else { 554 px = m->x - pd->px - 1; 555 py = m->y - pd->py - 1; 556 } 557 if (!input_key_get_mouse(&pd->s, m, px, py, &buf, &len)) 558 return (0); 559 bufferevent_write(job_get_event(pd->job), buf, len); 560 return (0); 561 } 562 input_key(&pd->s, job_get_event(pd->job), event->key); 563 } 564 return (0); 565 566 menu: 567 pd->menu = menu_create(""); 568 if (pd->flags & POPUP_INTERNAL) { 569 menu_add_items(pd->menu, popup_internal_menu_items, NULL, NULL, 570 NULL); 571 } else 572 menu_add_items(pd->menu, popup_menu_items, NULL, NULL, NULL); 573 if (m->x >= (pd->menu->width + 4) / 2) 574 x = m->x - (pd->menu->width + 4) / 2; 575 else 576 x = 0; 577 pd->md = menu_prepare(pd->menu, 0, NULL, x, m->y, c, NULL, 578 popup_menu_done, pd); 579 c->flags |= CLIENT_REDRAWOVERLAY; 580 581 out: 582 pd->lx = m->x; 583 pd->ly = m->y; 584 pd->lb = m->b; 585 return (0); 586 } 587 588 static void 589 popup_job_update_cb(struct job *job) 590 { 591 struct popup_data *pd = job_get_data(job); 592 struct evbuffer *evb = job_get_event(job)->input; 593 struct client *c = pd->c; 594 struct screen *s = &pd->s; 595 void *data = EVBUFFER_DATA(evb); 596 size_t size = EVBUFFER_LENGTH(evb); 597 598 if (size == 0) 599 return; 600 601 if (pd->md != NULL) { 602 c->overlay_check = menu_check_cb; 603 c->overlay_data = pd->md; 604 } else { 605 c->overlay_check = NULL; 606 c->overlay_data = NULL; 607 } 608 input_parse_screen(pd->ictx, s, popup_init_ctx_cb, pd, data, size); 609 c->overlay_check = popup_check_cb; 610 c->overlay_data = pd; 611 612 evbuffer_drain(evb, size); 613 } 614 615 static void 616 popup_job_complete_cb(struct job *job) 617 { 618 struct popup_data *pd = job_get_data(job); 619 int status; 620 621 status = job_get_status(pd->job); 622 if (WIFEXITED(status)) 623 pd->status = WEXITSTATUS(status); 624 else if (WIFSIGNALED(status)) 625 pd->status = WTERMSIG(status); 626 else 627 pd->status = 0; 628 pd->job = NULL; 629 630 if ((pd->flags & POPUP_CLOSEEXIT) || 631 ((pd->flags & POPUP_CLOSEEXITZERO) && pd->status == 0)) 632 server_client_clear_overlay(pd->c); 633 } 634 635 int 636 popup_display(int flags, enum box_lines lines, struct cmdq_item *item, u_int px, 637 u_int py, u_int sx, u_int sy, struct environ *env, const char *shellcmd, 638 int argc, char **argv, const char *cwd, const char *title, struct client *c, 639 struct session *s, const char* style, const char* border_style, 640 popup_close_cb cb, void *arg) 641 { 642 struct popup_data *pd; 643 u_int jx, jy; 644 struct options *o; 645 struct style sytmp; 646 647 if (s != NULL) 648 o = s->curw->window->options; 649 else 650 o = c->session->curw->window->options; 651 652 if (lines == BOX_LINES_DEFAULT) 653 lines = options_get_number(o, "popup-border-lines"); 654 if (lines == BOX_LINES_NONE) { 655 if (sx < 1 || sy < 1) 656 return (-1); 657 jx = sx; 658 jy = sy; 659 } else { 660 if (sx < 3 || sy < 3) 661 return (-1); 662 jx = sx - 2; 663 jy = sy - 2; 664 } 665 if (c->tty.sx < sx || c->tty.sy < sy) 666 return (-1); 667 668 pd = xcalloc(1, sizeof *pd); 669 pd->item = item; 670 pd->flags = flags; 671 pd->title = xstrdup(title); 672 673 pd->c = c; 674 pd->c->references++; 675 676 pd->cb = cb; 677 pd->arg = arg; 678 pd->status = 128 + SIGHUP; 679 680 pd->border_lines = lines; 681 memcpy(&pd->border_cell, &grid_default_cell, sizeof pd->border_cell); 682 style_apply(&pd->border_cell, o, "popup-border-style", NULL); 683 if (border_style != NULL) { 684 style_set(&sytmp, &grid_default_cell); 685 if (style_parse(&sytmp, &pd->border_cell, border_style) == 0) { 686 pd->border_cell.fg = sytmp.gc.fg; 687 pd->border_cell.bg = sytmp.gc.bg; 688 } 689 } 690 pd->border_cell.attr = 0; 691 692 screen_init(&pd->s, sx - 2, sy - 2, 0); 693 colour_palette_init(&pd->palette); 694 colour_palette_from_option(&pd->palette, global_w_options); 695 696 memcpy(&pd->defaults, &grid_default_cell, sizeof pd->defaults); 697 style_apply(&pd->defaults, o, "popup-style", NULL); 698 if (style != NULL) { 699 style_set(&sytmp, &grid_default_cell); 700 if (style_parse(&sytmp, &pd->defaults, style) == 0) { 701 pd->defaults.fg = sytmp.gc.fg; 702 pd->defaults.bg = sytmp.gc.bg; 703 } 704 } 705 pd->defaults.attr = 0; 706 707 pd->px = px; 708 pd->py = py; 709 pd->sx = sx; 710 pd->sy = sy; 711 712 pd->ppx = px; 713 pd->ppy = py; 714 pd->psx = sx; 715 pd->psy = sy; 716 717 pd->job = job_run(shellcmd, argc, argv, env, s, cwd, 718 popup_job_update_cb, popup_job_complete_cb, NULL, pd, 719 JOB_NOWAIT|JOB_PTY|JOB_KEEPWRITE, jx, jy); 720 pd->ictx = input_init(NULL, job_get_event(pd->job), &pd->palette); 721 722 server_client_set_overlay(c, 0, popup_check_cb, popup_mode_cb, 723 popup_draw_cb, popup_key_cb, popup_free_cb, popup_resize_cb, pd); 724 return (0); 725 } 726 727 static void 728 popup_editor_free(struct popup_editor *pe) 729 { 730 unlink(pe->path); 731 free(pe->path); 732 free(pe); 733 } 734 735 static void 736 popup_editor_close_cb(int status, void *arg) 737 { 738 struct popup_editor *pe = arg; 739 FILE *f; 740 char *buf = NULL; 741 off_t len = 0; 742 743 if (status != 0) { 744 pe->cb(NULL, 0, pe->arg); 745 popup_editor_free(pe); 746 return; 747 } 748 749 f = fopen(pe->path, "r"); 750 if (f != NULL) { 751 fseeko(f, 0, SEEK_END); 752 len = ftello(f); 753 fseeko(f, 0, SEEK_SET); 754 755 if (len == 0 || 756 (uintmax_t)len > (uintmax_t)SIZE_MAX || 757 (buf = malloc(len)) == NULL || 758 fread(buf, len, 1, f) != 1) { 759 free(buf); 760 buf = NULL; 761 len = 0; 762 } 763 fclose(f); 764 } 765 pe->cb(buf, len, pe->arg); /* callback now owns buffer */ 766 popup_editor_free(pe); 767 } 768 769 int 770 popup_editor(struct client *c, const char *buf, size_t len, 771 popup_finish_edit_cb cb, void *arg) 772 { 773 struct popup_editor *pe; 774 int fd; 775 FILE *f; 776 char *cmd; 777 char path[] = _PATH_TMP "tmux.XXXXXXXX"; 778 const char *editor; 779 u_int px, py, sx, sy; 780 781 editor = options_get_string(global_options, "editor"); 782 if (*editor == '\0') 783 return (-1); 784 785 fd = mkstemp(path); 786 if (fd == -1) 787 return (-1); 788 f = fdopen(fd, "w"); 789 if (fwrite(buf, len, 1, f) != 1) { 790 fclose(f); 791 return (-1); 792 } 793 fclose(f); 794 795 pe = xcalloc(1, sizeof *pe); 796 pe->path = xstrdup(path); 797 pe->cb = cb; 798 pe->arg = arg; 799 800 sx = c->tty.sx * 9 / 10; 801 sy = c->tty.sy * 9 / 10; 802 px = (c->tty.sx / 2) - (sx / 2); 803 py = (c->tty.sy / 2) - (sy / 2); 804 805 xasprintf(&cmd, "%s %s", editor, path); 806 if (popup_display(POPUP_INTERNAL|POPUP_CLOSEEXIT, BOX_LINES_DEFAULT, 807 NULL, px, py, sx, sy, NULL, cmd, 0, NULL, _PATH_TMP, NULL, c, NULL, 808 NULL, NULL, popup_editor_close_cb, pe) != 0) { 809 popup_editor_free(pe); 810 free(cmd); 811 return (-1); 812 } 813 free(cmd); 814 return (0); 815 } 816