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Don't limit width and height to 222 in standard mouse mode.
[tmux-openbsd.git] / window-copy.c
blobf5f78cf276e2eb723e61b969d02213869301f18b
1 /* $OpenBSD$ */
2
3 /*
4 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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
21 #include <stdlib.h>
22 #include <string.h>
23
24 #include "tmux.h"
25
26 struct screen *window_copy_init(struct window_pane *);
27 void window_copy_free(struct window_pane *);
28 void window_copy_resize(struct window_pane *, u_int, u_int);
29 void window_copy_key(struct window_pane *, struct session *, int);
30 int window_copy_key_input(struct window_pane *, int);
31 int window_copy_key_numeric_prefix(struct window_pane *, int);
32 void window_copy_mouse(
33 struct window_pane *, struct session *, struct mouse_event *);
34
35 void window_copy_redraw_lines(struct window_pane *, u_int, u_int);
36 void window_copy_redraw_screen(struct window_pane *);
37 void window_copy_write_line(
38 struct window_pane *, struct screen_write_ctx *, u_int);
39 void window_copy_write_lines(
40 struct window_pane *, struct screen_write_ctx *, u_int, u_int);
41
42 void window_copy_scroll_to(struct window_pane *, u_int, u_int);
43 int window_copy_search_compare(
44 struct grid *, u_int, u_int, struct grid *, u_int);
45 int window_copy_search_lr(
46 struct grid *, struct grid *, u_int *, u_int, u_int, u_int);
47 int window_copy_search_rl(
48 struct grid *, struct grid *, u_int *, u_int, u_int, u_int);
49 void window_copy_search_up(struct window_pane *, const char *);
50 void window_copy_search_down(struct window_pane *, const char *);
51 void window_copy_goto_line(struct window_pane *, const char *);
52 void window_copy_update_cursor(struct window_pane *, u_int, u_int);
53 void window_copy_start_selection(struct window_pane *);
54 int window_copy_update_selection(struct window_pane *);
55 void *window_copy_get_selection(struct window_pane *, size_t *);
56 void window_copy_copy_buffer(struct window_pane *, int, void *, size_t);
57 void window_copy_copy_pipe(
58 struct window_pane *, struct session *, int, const char *);
59 void window_copy_copy_selection(struct window_pane *, int);
60 void window_copy_clear_selection(struct window_pane *);
61 void window_copy_copy_line(
62 struct window_pane *, char **, size_t *, u_int, u_int, u_int);
63 int window_copy_in_set(struct window_pane *, u_int, u_int, const char *);
64 u_int window_copy_find_length(struct window_pane *, u_int);
65 void window_copy_cursor_start_of_line(struct window_pane *);
66 void window_copy_cursor_back_to_indentation(struct window_pane *);
67 void window_copy_cursor_end_of_line(struct window_pane *);
68 void window_copy_cursor_left(struct window_pane *);
69 void window_copy_cursor_right(struct window_pane *);
70 void window_copy_cursor_up(struct window_pane *, int);
71 void window_copy_cursor_down(struct window_pane *, int);
72 void window_copy_cursor_jump(struct window_pane *);
73 void window_copy_cursor_jump_back(struct window_pane *);
74 void window_copy_cursor_jump_to(struct window_pane *);
75 void window_copy_cursor_jump_to_back(struct window_pane *);
76 void window_copy_cursor_next_word(struct window_pane *, const char *);
77 void window_copy_cursor_next_word_end(struct window_pane *, const char *);
78 void window_copy_cursor_previous_word(struct window_pane *, const char *);
79 void window_copy_scroll_up(struct window_pane *, u_int);
80 void window_copy_scroll_down(struct window_pane *, u_int);
81 void window_copy_rectangle_toggle(struct window_pane *);
82
83 const struct window_mode window_copy_mode = {
84 window_copy_init,
85 window_copy_free,
86 window_copy_resize,
87 window_copy_key,
88 window_copy_mouse,
89 NULL,
90 };
91
92 enum window_copy_input_type {
93 WINDOW_COPY_OFF,
94 WINDOW_COPY_NUMERICPREFIX,
95 WINDOW_COPY_SEARCHUP,
96 WINDOW_COPY_SEARCHDOWN,
97 WINDOW_COPY_JUMPFORWARD,
98 WINDOW_COPY_JUMPBACK,
99 WINDOW_COPY_JUMPTOFORWARD,
100 WINDOW_COPY_JUMPTOBACK,
101 WINDOW_COPY_GOTOLINE,
102 };
103
104 /*
105 * Copy-mode's visible screen (the "screen" field) is filled from one of
106 * two sources: the original contents of the pane (used when we
107 * actually enter via the "copy-mode" command, to copy the contents of
108 * the current pane), or else a series of lines containing the output
109 * from an output-writing tmux command (such as any of the "show-*" or
110 * "list-*" commands).
111 *
112 * In either case, the full content of the copy-mode grid is pointed at
113 * by the "backing" field, and is copied into "screen" as needed (that
114 * is, when scrolling occurs). When copy-mode is backed by a pane,
115 * backing points directly at that pane's screen structure (&wp->base);
116 * when backed by a list of output-lines from a command, it points at
117 * a newly-allocated screen structure (which is deallocated when the
118 * mode ends).
119 */
120 struct window_copy_mode_data {
121 struct screen screen;
122
123 struct screen *backing;
124 int backing_written; /* backing display has started */
125
126 struct mode_key_data mdata;
127
128 u_int oy;
129
130 u_int selx;
131 u_int sely;
132
133 u_int rectflag; /* are we in rectangle copy mode? */
134
135 u_int cx;
136 u_int cy;
137
138 u_int lastcx; /* position in last line with content */
139 u_int lastsx; /* size of last line with content */
140
141 enum window_copy_input_type inputtype;
142 const char *inputprompt;
143 char *inputstr;
144
145 int numprefix;
146
147 enum window_copy_input_type searchtype;
148 char *searchstr;
149
150 enum window_copy_input_type jumptype;
151 char jumpchar;
152 };
153
154 struct screen *
155 window_copy_init(struct window_pane *wp)
156 {
157 struct window_copy_mode_data *data;
158 struct screen *s;
159 int keys;
160
161 wp->modedata = data = xmalloc(sizeof *data);
162 data->oy = 0;
163 data->cx = 0;
164 data->cy = 0;
165
166 data->lastcx = 0;
167 data->lastsx = 0;
168
169 data->backing_written = 0;
170
171 data->rectflag = 0;
172
173 data->inputtype = WINDOW_COPY_OFF;
174 data->inputprompt = NULL;
175 data->inputstr = xstrdup("");
176 data->numprefix = -1;
177
178 data->searchtype = WINDOW_COPY_OFF;
179 data->searchstr = NULL;
180
181 if (wp->fd != -1)
182 bufferevent_disable(wp->event, EV_READ|EV_WRITE);
183
184 data->jumptype = WINDOW_COPY_OFF;
185 data->jumpchar = '\0';
186
187 s = &data->screen;
188 screen_init(s, screen_size_x(&wp->base), screen_size_y(&wp->base), 0);
189 if (options_get_number(&wp->window->options, "mode-mouse"))
190 s->mode |= MODE_MOUSE_STANDARD;
191
192 keys = options_get_number(&wp->window->options, "mode-keys");
193 if (keys == MODEKEY_EMACS)
194 mode_key_init(&data->mdata, &mode_key_tree_emacs_copy);
195 else
196 mode_key_init(&data->mdata, &mode_key_tree_vi_copy);
197
198 data->backing = NULL;
199
200 return (s);
201 }
202
203 void
204 window_copy_init_from_pane(struct window_pane *wp)
205 {
206 struct window_copy_mode_data *data = wp->modedata;
207 struct screen *s = &data->screen;
208 struct screen_write_ctx ctx;
209 u_int i;
210
211 if (wp->mode != &window_copy_mode)
212 fatalx("not in copy mode");
213
214 data->backing = &wp->base;
215 data->cx = data->backing->cx;
216 data->cy = data->backing->cy;
217
218 s->cx = data->cx;
219 s->cy = data->cy;
220
221 screen_write_start(&ctx, NULL, s);
222 for (i = 0; i < screen_size_y(s); i++)
223 window_copy_write_line(wp, &ctx, i);
224 screen_write_cursormove(&ctx, data->cx, data->cy);
225 screen_write_stop(&ctx);
226 }
227
228 void
229 window_copy_init_for_output(struct window_pane *wp)
230 {
231 struct window_copy_mode_data *data = wp->modedata;
232
233 data->backing = xmalloc(sizeof *data->backing);
234 screen_init(data->backing, screen_size_x(&wp->base),
235 screen_size_y(&wp->base), UINT_MAX);
236 data->backing->mode &= ~MODE_WRAP;
237 }
238
239 void
240 window_copy_free(struct window_pane *wp)
241 {
242 struct window_copy_mode_data *data = wp->modedata;
243
244 if (wp->fd != -1)
245 bufferevent_enable(wp->event, EV_READ|EV_WRITE);
246
247 free(data->searchstr);
248 free(data->inputstr);
249
250 if (data->backing != &wp->base) {
251 screen_free(data->backing);
252 free(data->backing);
253 }
254 screen_free(&data->screen);
255
256 free(data);
257 }
258
259 void
260 window_copy_add(struct window_pane *wp, const char *fmt, ...)
261 {
262 va_list ap;
263
264 va_start(ap, fmt);
265 window_copy_vadd(wp, fmt, ap);
266 va_end(ap);
267 }
268
269 void
270 window_copy_vadd(struct window_pane *wp, const char *fmt, va_list ap)
271 {
272 struct window_copy_mode_data *data = wp->modedata;
273 struct screen *backing = data->backing;
274 struct screen_write_ctx back_ctx, ctx;
275 struct grid_cell gc;
276 int utf8flag;
277 u_int old_hsize;
278
279 if (backing == &wp->base)
280 return;
281
282 utf8flag = options_get_number(&wp->window->options, "utf8");
283 memcpy(&gc, &grid_default_cell, sizeof gc);
284
285 old_hsize = screen_hsize(data->backing);
286 screen_write_start(&back_ctx, NULL, backing);
287 if (data->backing_written) {
288 /*
289 * On the second or later line, do a CRLF before writing
290 * (so it's on a new line).
291 */
292 screen_write_carriagereturn(&back_ctx);
293 screen_write_linefeed(&back_ctx, 0);
294 } else
295 data->backing_written = 1;
296 screen_write_vnputs(&back_ctx, 0, &gc, utf8flag, fmt, ap);
297 screen_write_stop(&back_ctx);
298
299 data->oy += screen_hsize(data->backing) - old_hsize;
300
301 screen_write_start(&ctx, wp, &data->screen);
302
303 /*
304 * If the history has changed, draw the top line.
305 * (If there's any history at all, it has changed.)
306 */
307 if (screen_hsize(data->backing))
308 window_copy_redraw_lines(wp, 0, 1);
309
310 /* Write the line, if it's visible. */
311 if (backing->cy + data->oy < screen_size_y(backing))
312 window_copy_redraw_lines(wp, backing->cy, 1);
313
314 screen_write_stop(&ctx);
315 }
316
317 void
318 window_copy_pageup(struct window_pane *wp)
319 {
320 struct window_copy_mode_data *data = wp->modedata;
321 struct screen *s = &data->screen;
322 u_int n;
323
324 n = 1;
325 if (screen_size_y(s) > 2)
326 n = screen_size_y(s) - 2;
327 if (data->oy + n > screen_hsize(data->backing))
328 data->oy = screen_hsize(data->backing);
329 else
330 data->oy += n;
331 window_copy_update_selection(wp);
332 window_copy_redraw_screen(wp);
333 }
334
335 void
336 window_copy_resize(struct window_pane *wp, u_int sx, u_int sy)
337 {
338 struct window_copy_mode_data *data = wp->modedata;
339 struct screen *s = &data->screen;
340 struct screen_write_ctx ctx;
341
342 screen_resize(s, sx, sy, 0);
343 if (data->backing != &wp->base)
344 screen_resize(data->backing, sx, sy, 0);
345
346 if (data->cy > sy - 1)
347 data->cy = sy - 1;
348 if (data->cx > sx)
349 data->cx = sx;
350 if (data->oy > screen_hsize(data->backing))
351 data->oy = screen_hsize(data->backing);
352
353 window_copy_clear_selection(wp);
354
355 screen_write_start(&ctx, NULL, s);
356 window_copy_write_lines(wp, &ctx, 0, screen_size_y(s) - 1);
357 screen_write_stop(&ctx);
358
359 window_copy_redraw_screen(wp);
360 }
361
362 void
363 window_copy_key(struct window_pane *wp, struct session *sess, int key)
364 {
365 const char *word_separators;
366 struct window_copy_mode_data *data = wp->modedata;
367 struct screen *s = &data->screen;
368 u_int n;
369 int np, keys;
370 enum mode_key_cmd cmd;
371 const char *arg;
372
373 np = data->numprefix;
374 if (np <= 0)
375 np = 1;
376
377 if (data->inputtype == WINDOW_COPY_JUMPFORWARD ||
378 data->inputtype == WINDOW_COPY_JUMPBACK ||
379 data->inputtype == WINDOW_COPY_JUMPTOFORWARD ||
380 data->inputtype == WINDOW_COPY_JUMPTOBACK) {
381 /* Ignore keys with modifiers. */
382 if ((key & KEYC_MASK_MOD) == 0) {
383 data->jumpchar = key;
384 if (data->inputtype == WINDOW_COPY_JUMPFORWARD) {
385 for (; np != 0; np--)
386 window_copy_cursor_jump(wp);
387 } else if (data->inputtype == WINDOW_COPY_JUMPBACK) {
388 for (; np != 0; np--)
389 window_copy_cursor_jump_back(wp);
390 } else if (data->inputtype == WINDOW_COPY_JUMPTOFORWARD) {
391 for (; np != 0; np--)
392 window_copy_cursor_jump_to(wp);
393 } else if (data->inputtype == WINDOW_COPY_JUMPTOBACK) {
394 for (; np != 0; np--)
395 window_copy_cursor_jump_to_back(wp);
396 }
397 }
398 data->jumptype = data->inputtype;
399 data->inputtype = WINDOW_COPY_OFF;
400 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
401 return;
402 } else if (data->inputtype == WINDOW_COPY_NUMERICPREFIX) {
403 if (window_copy_key_numeric_prefix(wp, key) == 0)
404 return;
405 data->inputtype = WINDOW_COPY_OFF;
406 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
407 } else if (data->inputtype != WINDOW_COPY_OFF) {
408 if (window_copy_key_input(wp, key) != 0)
409 goto input_off;
410 return;
411 }
412
413 cmd = mode_key_lookup(&data->mdata, key, &arg);
414 switch (cmd) {
415 case MODEKEYCOPY_CANCEL:
416 window_pane_reset_mode(wp);
417 return;
418 case MODEKEYCOPY_LEFT:
419 for (; np != 0; np--)
420 window_copy_cursor_left(wp);
421 break;
422 case MODEKEYCOPY_RIGHT:
423 for (; np != 0; np--)
424 window_copy_cursor_right(wp);
425 break;
426 case MODEKEYCOPY_UP:
427 for (; np != 0; np--)
428 window_copy_cursor_up(wp, 0);
429 break;
430 case MODEKEYCOPY_DOWN:
431 for (; np != 0; np--)
432 window_copy_cursor_down(wp, 0);
433 break;
434 case MODEKEYCOPY_SCROLLUP:
435 for (; np != 0; np--)
436 window_copy_cursor_up(wp, 1);
437 break;
438 case MODEKEYCOPY_SCROLLDOWN:
439 for (; np != 0; np--)
440 window_copy_cursor_down(wp, 1);
441 break;
442 case MODEKEYCOPY_PREVIOUSPAGE:
443 for (; np != 0; np--)
444 window_copy_pageup(wp);
445 break;
446 case MODEKEYCOPY_NEXTPAGE:
447 n = 1;
448 if (screen_size_y(s) > 2)
449 n = screen_size_y(s) - 2;
450 for (; np != 0; np--) {
451 if (data->oy < n)
452 data->oy = 0;
453 else
454 data->oy -= n;
455 }
456 window_copy_update_selection(wp);
457 window_copy_redraw_screen(wp);
458 break;
459 case MODEKEYCOPY_HALFPAGEUP:
460 n = screen_size_y(s) / 2;
461 for (; np != 0; np--) {
462 if (data->oy + n > screen_hsize(data->backing))
463 data->oy = screen_hsize(data->backing);
464 else
465 data->oy += n;
466 }
467 window_copy_update_selection(wp);
468 window_copy_redraw_screen(wp);
469 break;
470 case MODEKEYCOPY_HALFPAGEDOWN:
471 n = screen_size_y(s) / 2;
472 for (; np != 0; np--) {
473 if (data->oy < n)
474 data->oy = 0;
475 else
476 data->oy -= n;
477 }
478 window_copy_update_selection(wp);
479 window_copy_redraw_screen(wp);
480 break;
481 case MODEKEYCOPY_TOPLINE:
482 data->cx = 0;
483 data->cy = 0;
484 window_copy_update_selection(wp);
485 window_copy_redraw_screen(wp);
486 break;
487 case MODEKEYCOPY_MIDDLELINE:
488 data->cx = 0;
489 data->cy = (screen_size_y(s) - 1) / 2;
490 window_copy_update_selection(wp);
491 window_copy_redraw_screen(wp);
492 break;
493 case MODEKEYCOPY_BOTTOMLINE:
494 data->cx = 0;
495 data->cy = screen_size_y(s) - 1;
496 window_copy_update_selection(wp);
497 window_copy_redraw_screen(wp);
498 break;
499 case MODEKEYCOPY_HISTORYTOP:
500 data->cx = 0;
501 data->cy = 0;
502 data->oy = screen_hsize(data->backing);
503 window_copy_update_selection(wp);
504 window_copy_redraw_screen(wp);
505 break;
506 case MODEKEYCOPY_HISTORYBOTTOM:
507 data->cx = 0;
508 data->cy = screen_size_y(s) - 1;
509 data->oy = 0;
510 window_copy_update_selection(wp);
511 window_copy_redraw_screen(wp);
512 break;
513 case MODEKEYCOPY_STARTSELECTION:
514 window_copy_start_selection(wp);
515 window_copy_redraw_screen(wp);
516 break;
517 case MODEKEYCOPY_COPYLINE:
518 case MODEKEYCOPY_SELECTLINE:
519 window_copy_cursor_start_of_line(wp);
520 /* FALLTHROUGH */
521 case MODEKEYCOPY_COPYENDOFLINE:
522 window_copy_start_selection(wp);
523 for (; np > 1; np--)
524 window_copy_cursor_down(wp, 0);
525 window_copy_cursor_end_of_line(wp);
526 window_copy_redraw_screen(wp);
527
528 /* If a copy command then copy the selection and exit. */
529 if (sess != NULL &&
530 (cmd == MODEKEYCOPY_COPYLINE ||
531 cmd == MODEKEYCOPY_COPYENDOFLINE)) {
532 window_copy_copy_selection(wp, -1);
533 window_pane_reset_mode(wp);
534 return;
535 }
536 break;
537 case MODEKEYCOPY_CLEARSELECTION:
538 window_copy_clear_selection(wp);
539 window_copy_redraw_screen(wp);
540 break;
541 case MODEKEYCOPY_COPYPIPE:
542 if (sess != NULL) {
543 window_copy_copy_pipe(wp, sess, data->numprefix, arg);
544 window_pane_reset_mode(wp);
545 return;
546 }
547 break;
548 case MODEKEYCOPY_COPYSELECTION:
549 if (sess != NULL) {
550 window_copy_copy_selection(wp, data->numprefix);
551 window_pane_reset_mode(wp);
552 return;
553 }
554 break;
555 case MODEKEYCOPY_STARTOFLINE:
556 window_copy_cursor_start_of_line(wp);
557 break;
558 case MODEKEYCOPY_BACKTOINDENTATION:
559 window_copy_cursor_back_to_indentation(wp);
560 break;
561 case MODEKEYCOPY_ENDOFLINE:
562 window_copy_cursor_end_of_line(wp);
563 break;
564 case MODEKEYCOPY_NEXTSPACE:
565 for (; np != 0; np--)
566 window_copy_cursor_next_word(wp, " ");
567 break;
568 case MODEKEYCOPY_NEXTSPACEEND:
569 for (; np != 0; np--)
570 window_copy_cursor_next_word_end(wp, " ");
571 break;
572 case MODEKEYCOPY_NEXTWORD:
573 word_separators =
574 options_get_string(&sess->options, "word-separators");
575 for (; np != 0; np--)
576 window_copy_cursor_next_word(wp, word_separators);
577 break;
578 case MODEKEYCOPY_NEXTWORDEND:
579 word_separators =
580 options_get_string(&sess->options, "word-separators");
581 for (; np != 0; np--)
582 window_copy_cursor_next_word_end(wp, word_separators);
583 break;
584 case MODEKEYCOPY_PREVIOUSSPACE:
585 for (; np != 0; np--)
586 window_copy_cursor_previous_word(wp, " ");
587 break;
588 case MODEKEYCOPY_PREVIOUSWORD:
589 word_separators =
590 options_get_string(&sess->options, "word-separators");
591 for (; np != 0; np--)
592 window_copy_cursor_previous_word(wp, word_separators);
593 break;
594 case MODEKEYCOPY_JUMP:
595 data->inputtype = WINDOW_COPY_JUMPFORWARD;
596 data->inputprompt = "Jump Forward";
597 *data->inputstr = '\0';
598 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
599 return; /* skip numprefix reset */
600 case MODEKEYCOPY_JUMPAGAIN:
601 if (data->jumptype == WINDOW_COPY_JUMPFORWARD) {
602 for (; np != 0; np--)
603 window_copy_cursor_jump(wp);
604 } else if (data->jumptype == WINDOW_COPY_JUMPBACK) {
605 for (; np != 0; np--)
606 window_copy_cursor_jump_back(wp);
607 } else if (data->jumptype == WINDOW_COPY_JUMPTOFORWARD) {
608 for (; np != 0; np--)
609 window_copy_cursor_jump_to(wp);
610 } else if (data->jumptype == WINDOW_COPY_JUMPTOBACK) {
611 for (; np != 0; np--)
612 window_copy_cursor_jump_to_back(wp);
613 }
614 break;
615 case MODEKEYCOPY_JUMPREVERSE:
616 if (data->jumptype == WINDOW_COPY_JUMPFORWARD) {
617 for (; np != 0; np--)
618 window_copy_cursor_jump_back(wp);
619 } else if (data->jumptype == WINDOW_COPY_JUMPBACK) {
620 for (; np != 0; np--)
621 window_copy_cursor_jump(wp);
622 } else if (data->jumptype == WINDOW_COPY_JUMPTOFORWARD) {
623 for (; np != 0; np--)
624 window_copy_cursor_jump_to_back(wp);
625 } else if (data->jumptype == WINDOW_COPY_JUMPTOBACK) {
626 for (; np != 0; np--)
627 window_copy_cursor_jump_to(wp);
628 }
629 break;
630 case MODEKEYCOPY_JUMPBACK:
631 data->inputtype = WINDOW_COPY_JUMPBACK;
632 data->inputprompt = "Jump Back";
633 *data->inputstr = '\0';
634 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
635 return; /* skip numprefix reset */
636 case MODEKEYCOPY_JUMPTO:
637 data->inputtype = WINDOW_COPY_JUMPTOFORWARD;
638 data->inputprompt = "Jump To";
639 *data->inputstr = '\0';
640 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
641 return; /* skip numprefix reset */
642 case MODEKEYCOPY_JUMPTOBACK:
643 data->inputtype = WINDOW_COPY_JUMPTOBACK;
644 data->inputprompt = "Jump To Back";
645 *data->inputstr = '\0';
646 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
647 return; /* skip numprefix reset */
648 case MODEKEYCOPY_SEARCHUP:
649 data->inputtype = WINDOW_COPY_SEARCHUP;
650 data->inputprompt = "Search Up";
651 goto input_on;
652 case MODEKEYCOPY_SEARCHDOWN:
653 data->inputtype = WINDOW_COPY_SEARCHDOWN;
654 data->inputprompt = "Search Down";
655 goto input_on;
656 case MODEKEYCOPY_SEARCHAGAIN:
657 case MODEKEYCOPY_SEARCHREVERSE:
658 switch (data->searchtype) {
659 case WINDOW_COPY_OFF:
660 case WINDOW_COPY_GOTOLINE:
661 case WINDOW_COPY_JUMPFORWARD:
662 case WINDOW_COPY_JUMPBACK:
663 case WINDOW_COPY_JUMPTOFORWARD:
664 case WINDOW_COPY_JUMPTOBACK:
665 case WINDOW_COPY_NUMERICPREFIX:
666 break;
667 case WINDOW_COPY_SEARCHUP:
668 if (cmd == MODEKEYCOPY_SEARCHAGAIN) {
669 for (; np != 0; np--) {
670 window_copy_search_up(
671 wp, data->searchstr);
672 }
673 } else {
674 for (; np != 0; np--) {
675 window_copy_search_down(
676 wp, data->searchstr);
677 }
678 }
679 break;
680 case WINDOW_COPY_SEARCHDOWN:
681 if (cmd == MODEKEYCOPY_SEARCHAGAIN) {
682 for (; np != 0; np--) {
683 window_copy_search_down(
684 wp, data->searchstr);
685 }
686 } else {
687 for (; np != 0; np--) {
688 window_copy_search_up(
689 wp, data->searchstr);
690 }
691 }
692 break;
693 }
694 break;
695 case MODEKEYCOPY_GOTOLINE:
696 data->inputtype = WINDOW_COPY_GOTOLINE;
697 data->inputprompt = "Goto Line";
698 *data->inputstr = '\0';
699 goto input_on;
700 case MODEKEYCOPY_STARTNUMBERPREFIX:
701 key &= KEYC_MASK_KEY;
702 if (key >= '0' && key <= '9') {
703 data->inputtype = WINDOW_COPY_NUMERICPREFIX;
704 data->numprefix = 0;
705 window_copy_key_numeric_prefix(wp, key);
706 return;
707 }
708 break;
709 case MODEKEYCOPY_RECTANGLETOGGLE:
710 window_copy_rectangle_toggle(wp);
711 break;
712 default:
713 break;
714 }
715
716 data->numprefix = -1;
717 return;
718
719 input_on:
720 keys = options_get_number(&wp->window->options, "mode-keys");
721 if (keys == MODEKEY_EMACS)
722 mode_key_init(&data->mdata, &mode_key_tree_emacs_edit);
723 else
724 mode_key_init(&data->mdata, &mode_key_tree_vi_edit);
725
726 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
727 return;
728
729 input_off:
730 keys = options_get_number(&wp->window->options, "mode-keys");
731 if (keys == MODEKEY_EMACS)
732 mode_key_init(&data->mdata, &mode_key_tree_emacs_copy);
733 else
734 mode_key_init(&data->mdata, &mode_key_tree_vi_copy);
735
736 data->inputtype = WINDOW_COPY_OFF;
737 data->inputprompt = NULL;
738
739 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
740 }
741
742 int
743 window_copy_key_input(struct window_pane *wp, int key)
744 {
745 struct window_copy_mode_data *data = wp->modedata;
746 struct screen *s = &data->screen;
747 size_t inputlen;
748 int np;
749
750 switch (mode_key_lookup(&data->mdata, key, NULL)) {
751 case MODEKEYEDIT_CANCEL:
752 data->numprefix = -1;
753 return (-1);
754 case MODEKEYEDIT_BACKSPACE:
755 inputlen = strlen(data->inputstr);
756 if (inputlen > 0)
757 data->inputstr[inputlen - 1] = '\0';
758 break;
759 case MODEKEYEDIT_DELETELINE:
760 *data->inputstr = '\0';
761 break;
762 case MODEKEYEDIT_ENTER:
763 np = data->numprefix;
764 if (np <= 0)
765 np = 1;
766
767 switch (data->inputtype) {
768 case WINDOW_COPY_OFF:
769 case WINDOW_COPY_JUMPFORWARD:
770 case WINDOW_COPY_JUMPBACK:
771 case WINDOW_COPY_JUMPTOFORWARD:
772 case WINDOW_COPY_JUMPTOBACK:
773 case WINDOW_COPY_NUMERICPREFIX:
774 break;
775 case WINDOW_COPY_SEARCHUP:
776 for (; np != 0; np--)
777 window_copy_search_up(wp, data->inputstr);
778 data->searchtype = data->inputtype;
779 data->searchstr = xstrdup(data->inputstr);
780 break;
781 case WINDOW_COPY_SEARCHDOWN:
782 for (; np != 0; np--)
783 window_copy_search_down(wp, data->inputstr);
784 data->searchtype = data->inputtype;
785 data->searchstr = xstrdup(data->inputstr);
786 break;
787 case WINDOW_COPY_GOTOLINE:
788 window_copy_goto_line(wp, data->inputstr);
789 *data->inputstr = '\0';
790 break;
791 }
792 data->numprefix = -1;
793 return (1);
794 case MODEKEY_OTHER:
795 if (key < 32 || key > 126)
796 break;
797 inputlen = strlen(data->inputstr) + 2;
798
799 data->inputstr = xrealloc(data->inputstr, 1, inputlen);
800 data->inputstr[inputlen - 2] = key;
801 data->inputstr[inputlen - 1] = '\0';
802 break;
803 default:
804 break;
805 }
806
807 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
808 return (0);
809 }
810
811 int
812 window_copy_key_numeric_prefix(struct window_pane *wp, int key)
813 {
814 struct window_copy_mode_data *data = wp->modedata;
815 struct screen *s = &data->screen;
816
817 key &= KEYC_MASK_KEY;
818 if (key < '0' || key > '9')
819 return (1);
820
821 if (data->numprefix >= 100) /* no more than three digits */
822 return (0);
823 data->numprefix = data->numprefix * 10 + key - '0';
824
825 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
826 return (0);
827 }
828
829 void
830 window_copy_mouse(
831 struct window_pane *wp, struct session *sess, struct mouse_event *m)
832 {
833 struct window_copy_mode_data *data = wp->modedata;
834 struct screen *s = &data->screen;
835 u_int i;
836
837 if (m->x >= screen_size_x(s))
838 return;
839 if (m->y >= screen_size_y(s))
840 return;
841
842 /* If mouse wheel (buttons 4 and 5), scroll. */
843 if (m->event == MOUSE_EVENT_WHEEL) {
844 if (m->wheel == MOUSE_WHEEL_UP) {
845 for (i = 0; i < 5; i++)
846 window_copy_cursor_up(wp, 1);
847 } else if (m->wheel == MOUSE_WHEEL_DOWN) {
848 for (i = 0; i < 5; i++)
849 window_copy_cursor_down(wp, 1);
850 if (data->oy == 0)
851 goto reset_mode;
852 }
853 return;
854 }
855
856 /*
857 * If already reading motion, move the cursor while buttons are still
858 * pressed, or stop the selection on their release.
859 */
860 if (s->mode & MODE_MOUSE_BUTTON) {
861 if (~m->event & MOUSE_EVENT_UP) {
862 window_copy_update_cursor(wp, m->x, m->y);
863 if (window_copy_update_selection(wp))
864 window_copy_redraw_screen(wp);
865 return;
866 }
867 goto reset_mode;
868 }
869
870 /* Otherwise if other buttons pressed, start selection and motion. */
871 if (~m->event & MOUSE_EVENT_UP) {
872 s->mode &= ~MODE_MOUSE_STANDARD;
873 s->mode |= MODE_MOUSE_BUTTON;
874
875 window_copy_update_cursor(wp, m->x, m->y);
876 window_copy_start_selection(wp);
877 window_copy_redraw_screen(wp);
878 }
879
880 return;
881
882 reset_mode:
883 s->mode &= ~MODE_MOUSE_BUTTON;
884 s->mode |= MODE_MOUSE_STANDARD;
885 if (sess != NULL) {
886 window_copy_copy_selection(wp, -1);
887 window_pane_reset_mode(wp);
888 }
889 }
890
891 void
892 window_copy_scroll_to(struct window_pane *wp, u_int px, u_int py)
893 {
894 struct window_copy_mode_data *data = wp->modedata;
895 struct grid *gd = data->backing->grid;
896 u_int offset, gap;
897
898 data->cx = px;
899
900 gap = gd->sy / 4;
901 if (py < gd->sy) {
902 offset = 0;
903 data->cy = py;
904 } else if (py > gd->hsize + gd->sy - gap) {
905 offset = gd->hsize;
906 data->cy = py - gd->hsize;
907 } else {
908 offset = py + gap - gd->sy;
909 data->cy = py - offset;
910 }
911 data->oy = gd->hsize - offset;
912
913 window_copy_update_selection(wp);
914 window_copy_redraw_screen(wp);
915 }
916
917 int
918 window_copy_search_compare(
919 struct grid *gd, u_int px, u_int py, struct grid *sgd, u_int spx)
920 {
921 const struct grid_cell *gc, *sgc;
922 struct utf8_data ud, sud;
923
924 gc = grid_peek_cell(gd, px, py);
925 grid_cell_get(gc, &ud);
926 sgc = grid_peek_cell(sgd, spx, 0);
927 grid_cell_get(sgc, &sud);
928
929 if (ud.size != sud.size || ud.width != sud.width)
930 return (0);
931 return (memcmp(ud.data, sud.data, ud.size) == 0);
932 }
933
934 int
935 window_copy_search_lr(struct grid *gd,
936 struct grid *sgd, u_int *ppx, u_int py, u_int first, u_int last)
937 {
938 u_int ax, bx, px;
939
940 for (ax = first; ax < last; ax++) {
941 if (ax + sgd->sx >= gd->sx)
942 break;
943 for (bx = 0; bx < sgd->sx; bx++) {
944 px = ax + bx;
945 if (!window_copy_search_compare(gd, px, py, sgd, bx))
946 break;
947 }
948 if (bx == sgd->sx) {
949 *ppx = ax;
950 return (1);
951 }
952 }
953 return (0);
954 }
955
956 int
957 window_copy_search_rl(struct grid *gd,
958 struct grid *sgd, u_int *ppx, u_int py, u_int first, u_int last)
959 {
960 u_int ax, bx, px;
961
962 for (ax = last + 1; ax > first; ax--) {
963 if (gd->sx - (ax - 1) < sgd->sx)
964 continue;
965 for (bx = 0; bx < sgd->sx; bx++) {
966 px = ax - 1 + bx;
967 if (!window_copy_search_compare(gd, px, py, sgd, bx))
968 break;
969 }
970 if (bx == sgd->sx) {
971 *ppx = ax - 1;
972 return (1);
973 }
974 }
975 return (0);
976 }
977
978 void
979 window_copy_search_up(struct window_pane *wp, const char *searchstr)
980 {
981 struct window_copy_mode_data *data = wp->modedata;
982 struct screen *s = data->backing, ss;
983 struct screen_write_ctx ctx;
984 struct grid *gd = s->grid, *sgd;
985 struct grid_cell gc;
986 size_t searchlen;
987 u_int i, last, fx, fy, px;
988 int utf8flag, n, wrapped, wrapflag;
989
990 if (*searchstr == '\0')
991 return;
992 utf8flag = options_get_number(&wp->window->options, "utf8");
993 wrapflag = options_get_number(&wp->window->options, "wrap-search");
994 searchlen = screen_write_strlen(utf8flag, "%s", searchstr);
995
996 screen_init(&ss, searchlen, 1, 0);
997 screen_write_start(&ctx, NULL, &ss);
998 memcpy(&gc, &grid_default_cell, sizeof gc);
999 screen_write_nputs(&ctx, -1, &gc, utf8flag, "%s", searchstr);
1000 screen_write_stop(&ctx);
1001
1002 fx = data->cx;
1003 fy = gd->hsize - data->oy + data->cy;
1004
1005 if (fx == 0) {
1006 if (fy == 0)
1007 return;
1008 fx = gd->sx - 1;
1009 fy--;
1010 } else
1011 fx--;
1012 n = wrapped = 0;
1013
1014 retry:
1015 sgd = ss.grid;
1016 for (i = fy + 1; i > 0; i--) {
1017 last = screen_size_x(s);
1018 if (i == fy + 1)
1019 last = fx;
1020 n = window_copy_search_rl(gd, sgd, &px, i - 1, 0, last);
1021 if (n) {
1022 window_copy_scroll_to(wp, px, i - 1);
1023 break;
1024 }
1025 }
1026 if (wrapflag && !n && !wrapped) {
1027 fx = gd->sx - 1;
1028 fy = gd->hsize + gd->sy - 1;
1029 wrapped = 1;
1030 goto retry;
1031 }
1032
1033 screen_free(&ss);
1034 }
1035
1036 void
1037 window_copy_search_down(struct window_pane *wp, const char *searchstr)
1038 {
1039 struct window_copy_mode_data *data = wp->modedata;
1040 struct screen *s = data->backing, ss;
1041 struct screen_write_ctx ctx;
1042 struct grid *gd = s->grid, *sgd;
1043 struct grid_cell gc;
1044 size_t searchlen;
1045 u_int i, first, fx, fy, px;
1046 int utf8flag, n, wrapped, wrapflag;
1047
1048 if (*searchstr == '\0')
1049 return;
1050 utf8flag = options_get_number(&wp->window->options, "utf8");
1051 wrapflag = options_get_number(&wp->window->options, "wrap-search");
1052 searchlen = screen_write_strlen(utf8flag, "%s", searchstr);
1053
1054 screen_init(&ss, searchlen, 1, 0);
1055 screen_write_start(&ctx, NULL, &ss);
1056 memcpy(&gc, &grid_default_cell, sizeof gc);
1057 screen_write_nputs(&ctx, -1, &gc, utf8flag, "%s", searchstr);
1058 screen_write_stop(&ctx);
1059
1060 fx = data->cx;
1061 fy = gd->hsize - data->oy + data->cy;
1062
1063 if (fx == gd->sx - 1) {
1064 if (fy == gd->hsize + gd->sy)
1065 return;
1066 fx = 0;
1067 fy++;
1068 } else
1069 fx++;
1070 n = wrapped = 0;
1071
1072 retry:
1073 sgd = ss.grid;
1074 for (i = fy + 1; i < gd->hsize + gd->sy + 1; i++) {
1075 first = 0;
1076 if (i == fy + 1)
1077 first = fx;
1078 n = window_copy_search_lr(gd, sgd, &px, i - 1, first, gd->sx);
1079 if (n) {
1080 window_copy_scroll_to(wp, px, i - 1);
1081 break;
1082 }
1083 }
1084 if (wrapflag && !n && !wrapped) {
1085 fx = 0;
1086 fy = 0;
1087 wrapped = 1;
1088 goto retry;
1089 }
1090
1091 screen_free(&ss);
1092 }
1093
1094 void
1095 window_copy_goto_line(struct window_pane *wp, const char *linestr)
1096 {
1097 struct window_copy_mode_data *data = wp->modedata;
1098 const char *errstr;
1099 u_int lineno;
1100
1101 lineno = strtonum(linestr, 0, screen_hsize(data->backing), &errstr);
1102 if (errstr != NULL)
1103 return;
1104
1105 data->oy = lineno;
1106 window_copy_update_selection(wp);
1107 window_copy_redraw_screen(wp);
1108 }
1109
1110 void
1111 window_copy_write_line(
1112 struct window_pane *wp, struct screen_write_ctx *ctx, u_int py)
1113 {
1114 struct window_copy_mode_data *data = wp->modedata;
1115 struct screen *s = &data->screen;
1116 struct options *oo = &wp->window->options;
1117 struct grid_cell gc;
1118 char hdr[32];
1119 size_t last, xoff = 0, size = 0;
1120
1121 window_mode_attrs(&gc, oo);
1122
1123 last = screen_size_y(s) - 1;
1124 if (py == 0) {
1125 size = xsnprintf(hdr, sizeof hdr,
1126 "[%u/%u]", data->oy, screen_hsize(data->backing));
1127 if (size > screen_size_x(s))
1128 size = screen_size_x(s);
1129 screen_write_cursormove(ctx, screen_size_x(s) - size, 0);
1130 screen_write_puts(ctx, &gc, "%s", hdr);
1131 } else if (py == last && data->inputtype != WINDOW_COPY_OFF) {
1132 if (data->inputtype == WINDOW_COPY_NUMERICPREFIX) {
1133 xoff = size = xsnprintf(hdr, sizeof hdr,
1134 "Repeat: %u", data->numprefix);
1135 } else {
1136 xoff = size = xsnprintf(hdr, sizeof hdr,
1137 "%s: %s", data->inputprompt, data->inputstr);
1138 }
1139 screen_write_cursormove(ctx, 0, last);
1140 screen_write_puts(ctx, &gc, "%s", hdr);
1141 } else
1142 size = 0;
1143
1144 screen_write_cursormove(ctx, xoff, py);
1145 screen_write_copy(ctx, data->backing, xoff,
1146 (screen_hsize(data->backing) - data->oy) + py,
1147 screen_size_x(s) - size, 1);
1148
1149 if (py == data->cy && data->cx == screen_size_x(s)) {
1150 memcpy(&gc, &grid_default_cell, sizeof gc);
1151 screen_write_cursormove(ctx, screen_size_x(s) - 1, py);
1152 screen_write_putc(ctx, &gc, '$');
1153 }
1154 }
1155
1156 void
1157 window_copy_write_lines(
1158 struct window_pane *wp, struct screen_write_ctx *ctx, u_int py, u_int ny)
1159 {
1160 u_int yy;
1161
1162 for (yy = py; yy < py + ny; yy++)
1163 window_copy_write_line(wp, ctx, py);
1164 }
1165
1166 void
1167 window_copy_redraw_lines(struct window_pane *wp, u_int py, u_int ny)
1168 {
1169 struct window_copy_mode_data *data = wp->modedata;
1170 struct screen_write_ctx ctx;
1171 u_int i;
1172
1173 screen_write_start(&ctx, wp, NULL);
1174 for (i = py; i < py + ny; i++)
1175 window_copy_write_line(wp, &ctx, i);
1176 screen_write_cursormove(&ctx, data->cx, data->cy);
1177 screen_write_stop(&ctx);
1178 }
1179
1180 void
1181 window_copy_redraw_screen(struct window_pane *wp)
1182 {
1183 struct window_copy_mode_data *data = wp->modedata;
1184
1185 window_copy_redraw_lines(wp, 0, screen_size_y(&data->screen));
1186 }
1187
1188 void
1189 window_copy_update_cursor(struct window_pane *wp, u_int cx, u_int cy)
1190 {
1191 struct window_copy_mode_data *data = wp->modedata;
1192 struct screen *s = &data->screen;
1193 struct screen_write_ctx ctx;
1194 u_int old_cx, old_cy;
1195
1196 old_cx = data->cx; old_cy = data->cy;
1197 data->cx = cx; data->cy = cy;
1198 if (old_cx == screen_size_x(s))
1199 window_copy_redraw_lines(wp, old_cy, 1);
1200 if (data->cx == screen_size_x(s))
1201 window_copy_redraw_lines(wp, data->cy, 1);
1202 else {
1203 screen_write_start(&ctx, wp, NULL);
1204 screen_write_cursormove(&ctx, data->cx, data->cy);
1205 screen_write_stop(&ctx);
1206 }
1207 }
1208
1209 void
1210 window_copy_start_selection(struct window_pane *wp)
1211 {
1212 struct window_copy_mode_data *data = wp->modedata;
1213 struct screen *s = &data->screen;
1214
1215 data->selx = data->cx;
1216 data->sely = screen_hsize(data->backing) + data->cy - data->oy;
1217
1218 s->sel.flag = 1;
1219 window_copy_update_selection(wp);
1220 }
1221
1222 int
1223 window_copy_update_selection(struct window_pane *wp)
1224 {
1225 struct window_copy_mode_data *data = wp->modedata;
1226 struct screen *s = &data->screen;
1227 struct options *oo = &wp->window->options;
1228 struct grid_cell gc;
1229 u_int sx, sy, ty, cy;
1230
1231 if (!s->sel.flag)
1232 return (0);
1233
1234 /* Set colours. */
1235 window_mode_attrs(&gc, oo);
1236
1237 /* Find top of screen. */
1238 ty = screen_hsize(data->backing) - data->oy;
1239
1240 /* Adjust the selection. */
1241 sx = data->selx;
1242 sy = data->sely;
1243 if (sy < ty) { /* above screen */
1244 if (!data->rectflag)
1245 sx = 0;
1246 sy = 0;
1247 } else if (sy > ty + screen_size_y(s) - 1) { /* below screen */
1248 if (!data->rectflag)
1249 sx = screen_size_x(s) - 1;
1250 sy = screen_size_y(s) - 1;
1251 } else
1252 sy -= ty;
1253 sy = screen_hsize(s) + sy;
1254
1255 screen_set_selection(s,
1256 sx, sy, data->cx, screen_hsize(s) + data->cy, data->rectflag, &gc);
1257
1258 if (data->rectflag) {
1259 /*
1260 * Can't rely on the caller to redraw the right lines for
1261 * rectangle selection - find the highest line and the number
1262 * of lines, and redraw just past that in both directions
1263 */
1264 cy = data->cy;
1265 if (sy < cy)
1266 window_copy_redraw_lines(wp, sy, cy - sy + 1);
1267 else
1268 window_copy_redraw_lines(wp, cy, sy - cy + 1);
1269 }
1270
1271 return (1);
1272 }
1273
1274 void *
1275 window_copy_get_selection(struct window_pane *wp, size_t *len)
1276 {
1277 struct window_copy_mode_data *data = wp->modedata;
1278 struct screen *s = &data->screen;
1279 char *buf;
1280 size_t off;
1281 u_int i, xx, yy, sx, sy, ex, ey;
1282 u_int firstsx, lastex, restex, restsx;
1283 int keys;
1284
1285 if (!s->sel.flag)
1286 return (NULL);
1287
1288 buf = xmalloc(1);
1289 off = 0;
1290
1291 *buf = '\0';
1292
1293 /*
1294 * The selection extends from selx,sely to (adjusted) cx,cy on
1295 * the base screen.
1296 */
1297
1298 /* Find start and end. */
1299 xx = data->cx;
1300 yy = screen_hsize(data->backing) + data->cy - data->oy;
1301 if (yy < data->sely || (yy == data->sely && xx < data->selx)) {
1302 sx = xx; sy = yy;
1303 ex = data->selx; ey = data->sely;
1304 } else {
1305 sx = data->selx; sy = data->sely;
1306 ex = xx; ey = yy;
1307 }
1308
1309 /* Trim ex to end of line. */
1310 xx = window_copy_find_length(wp, ey);
1311 if (ex > xx)
1312 ex = xx;
1313
1314 /*
1315 * Deal with rectangle-copy if necessary; four situations: start of
1316 * first line (firstsx), end of last line (lastex), start (restsx) and
1317 * end (restex) of all other lines.
1318 */
1319 xx = screen_size_x(s);
1320
1321 /*
1322 * Behave according to mode-keys. If it is emacs, copy like emacs,
1323 * keeping the top-left-most character, and dropping the
1324 * bottom-right-most, regardless of copy direction. If it is vi, also
1325 * keep bottom-right-most character.
1326 */
1327 keys = options_get_number(&wp->window->options, "mode-keys");
1328 if (data->rectflag) {
1329 /*
1330 * Need to ignore the column with the cursor in it, which for
1331 * rectangular copy means knowing which side the cursor is on.
1332 */
1333 if (data->selx < data->cx) {
1334 /* Selection start is on the left. */
1335 if (keys == MODEKEY_EMACS) {
1336 lastex = data->cx;
1337 restex = data->cx;
1338 }
1339 else {
1340 lastex = data->cx + 1;
1341 restex = data->cx + 1;
1342 }
1343 firstsx = data->selx;
1344 restsx = data->selx;
1345 } else {
1346 /* Cursor is on the left. */
1347 lastex = data->selx + 1;
1348 restex = data->selx + 1;
1349 firstsx = data->cx;
1350 restsx = data->cx;
1351 }
1352 } else {
1353 if (keys == MODEKEY_EMACS)
1354 lastex = ex;
1355 else
1356 lastex = ex + 1;
1357 restex = xx;
1358 firstsx = sx;
1359 restsx = 0;
1360 }
1361
1362 /* Copy the lines. */
1363 if (sy == ey)
1364 window_copy_copy_line(wp, &buf, &off, sy, firstsx, lastex);
1365 else {
1366 window_copy_copy_line(wp, &buf, &off, sy, firstsx, restex);
1367 if (ey - sy > 1) {
1368 for (i = sy + 1; i < ey; i++) {
1369 window_copy_copy_line(
1370 wp, &buf, &off, i, restsx, restex);
1371 }
1372 }
1373 window_copy_copy_line(wp, &buf, &off, ey, restsx, lastex);
1374 }
1375
1376 /* Don't bother if no data. */
1377 if (off == 0) {
1378 free(buf);
1379 return (NULL);
1380 }
1381 *len = off - 1; /* remove final \n */
1382 return (buf);
1383 }
1384
1385 void
1386 window_copy_copy_buffer(struct window_pane *wp, int idx, void *buf, size_t len)
1387 {
1388 u_int limit;
1389 struct screen_write_ctx ctx;
1390
1391 if (options_get_number(&global_options, "set-clipboard")) {
1392 screen_write_start(&ctx, wp, NULL);
1393 screen_write_setselection(&ctx, buf, len);
1394 screen_write_stop(&ctx);
1395 }
1396
1397 if (idx == -1) {
1398 limit = options_get_number(&global_options, "buffer-limit");
1399 paste_add(&global_buffers, buf, len, limit);
1400 } else
1401 paste_replace(&global_buffers, idx, buf, len);
1402 }
1403
1404 void
1405 window_copy_copy_pipe(
1406 struct window_pane *wp, struct session *sess, int idx, const char *arg)
1407 {
1408 void *buf;
1409 size_t len;
1410 struct job *job;
1411
1412
1413 buf = window_copy_get_selection(wp, &len);
1414 if (buf == NULL)
1415 return;
1416
1417 job = job_run(arg, sess, NULL, NULL, NULL);
1418 bufferevent_write(job->event, buf, len);
1419
1420 window_copy_copy_buffer(wp, idx, buf, len);
1421 }
1422
1423 void
1424 window_copy_copy_selection(struct window_pane *wp, int idx)
1425 {
1426 void* buf;
1427 size_t len;
1428
1429 buf = window_copy_get_selection(wp, &len);
1430 if (buf == NULL)
1431 return;
1432
1433 window_copy_copy_buffer(wp, idx, buf, len);
1434 }
1435
1436 void
1437 window_copy_copy_line(struct window_pane *wp,
1438 char **buf, size_t *off, u_int sy, u_int sx, u_int ex)
1439 {
1440 struct window_copy_mode_data *data = wp->modedata;
1441 struct grid *gd = data->backing->grid;
1442 const struct grid_cell *gc;
1443 struct grid_line *gl;
1444 struct utf8_data ud;
1445 u_int i, xx, wrapped = 0;
1446
1447 if (sx > ex)
1448 return;
1449
1450 /*
1451 * Work out if the line was wrapped at the screen edge and all of it is
1452 * on screen.
1453 */
1454 gl = &gd->linedata[sy];
1455 if (gl->flags & GRID_LINE_WRAPPED && gl->cellsize <= gd->sx)
1456 wrapped = 1;
1457
1458 /* If the line was wrapped, don't strip spaces (use the full length). */
1459 if (wrapped)
1460 xx = gl->cellsize;
1461 else
1462 xx = window_copy_find_length(wp, sy);
1463 if (ex > xx)
1464 ex = xx;
1465 if (sx > xx)
1466 sx = xx;
1467
1468 if (sx < ex) {
1469 for (i = sx; i < ex; i++) {
1470 gc = grid_peek_cell(gd, i, sy);
1471 if (gc->flags & GRID_FLAG_PADDING)
1472 continue;
1473 grid_cell_get(gc, &ud);
1474
1475 *buf = xrealloc(*buf, 1, (*off) + ud.size);
1476 memcpy(*buf + *off, ud.data, ud.size);
1477 *off += ud.size;
1478 }
1479 }
1480
1481 /* Only add a newline if the line wasn't wrapped. */
1482 if (!wrapped || ex != xx) {
1483 *buf = xrealloc(*buf, 1, (*off) + 1);
1484 (*buf)[(*off)++] = '\n';
1485 }
1486 }
1487
1488 void
1489 window_copy_clear_selection(struct window_pane *wp)
1490 {
1491 struct window_copy_mode_data *data = wp->modedata;
1492 u_int px, py;
1493
1494 screen_clear_selection(&data->screen);
1495
1496 py = screen_hsize(data->backing) + data->cy - data->oy;
1497 px = window_copy_find_length(wp, py);
1498 if (data->cx > px)
1499 window_copy_update_cursor(wp, px, data->cy);
1500 }
1501
1502 int
1503 window_copy_in_set(struct window_pane *wp, u_int px, u_int py, const char *set)
1504 {
1505 struct window_copy_mode_data *data = wp->modedata;
1506 const struct grid_cell *gc;
1507 struct utf8_data ud;
1508
1509 gc = grid_peek_cell(data->backing->grid, px, py);
1510 grid_cell_get(gc, &ud);
1511 if (ud.size != 1 || gc->flags & GRID_FLAG_PADDING)
1512 return (0);
1513 if (*ud.data == 0x00 || *ud.data == 0x7f)
1514 return (0);
1515 return (strchr(set, *ud.data) != NULL);
1516 }
1517
1518 u_int
1519 window_copy_find_length(struct window_pane *wp, u_int py)
1520 {
1521 struct window_copy_mode_data *data = wp->modedata;
1522 struct screen *s = data->backing;
1523 const struct grid_cell *gc;
1524 struct utf8_data ud;
1525 u_int px;
1526
1527 /*
1528 * If the pane has been resized, its grid can contain old overlong
1529 * lines. grid_peek_cell does not allow accessing cells beyond the
1530 * width of the grid, and screen_write_copy treats them as spaces, so
1531 * ignore them here too.
1532 */
1533 px = s->grid->linedata[py].cellsize;
1534 if (px > screen_size_x(s))
1535 px = screen_size_x(s);
1536 while (px > 0) {
1537 gc = grid_peek_cell(s->grid, px - 1, py);
1538 grid_cell_get(gc, &ud);
1539 if (ud.size != 1 || *ud.data != ' ')
1540 break;
1541 px--;
1542 }
1543 return (px);
1544 }
1545
1546 void
1547 window_copy_cursor_start_of_line(struct window_pane *wp)
1548 {
1549 struct window_copy_mode_data *data = wp->modedata;
1550 struct screen *back_s = data->backing;
1551 struct grid *gd = back_s->grid;
1552 u_int py;
1553
1554 if (data->cx == 0) {
1555 py = screen_hsize(back_s) + data->cy - data->oy;
1556 while (py > 0 && gd->linedata[py-1].flags & GRID_LINE_WRAPPED) {
1557 window_copy_cursor_up(wp, 0);
1558 py = screen_hsize(back_s) + data->cy - data->oy;
1559 }
1560 }
1561 window_copy_update_cursor(wp, 0, data->cy);
1562 if (window_copy_update_selection(wp))
1563 window_copy_redraw_lines(wp, data->cy, 1);
1564 }
1565
1566 void
1567 window_copy_cursor_back_to_indentation(struct window_pane *wp)
1568 {
1569 struct window_copy_mode_data *data = wp->modedata;
1570 u_int px, py, xx;
1571 const struct grid_cell *gc;
1572 struct utf8_data ud;
1573
1574 px = 0;
1575 py = screen_hsize(data->backing) + data->cy - data->oy;
1576 xx = window_copy_find_length(wp, py);
1577
1578 while (px < xx) {
1579 gc = grid_peek_cell(data->backing->grid, px, py);
1580 grid_cell_get(gc, &ud);
1581 if (ud.size != 1 || *ud.data != ' ')
1582 break;
1583 px++;
1584 }
1585
1586 window_copy_update_cursor(wp, px, data->cy);
1587 if (window_copy_update_selection(wp))
1588 window_copy_redraw_lines(wp, data->cy, 1);
1589 }
1590
1591 void
1592 window_copy_cursor_end_of_line(struct window_pane *wp)
1593 {
1594 struct window_copy_mode_data *data = wp->modedata;
1595 struct screen *back_s = data->backing;
1596 struct grid *gd = back_s->grid;
1597 u_int px, py;
1598
1599 py = screen_hsize(back_s) + data->cy - data->oy;
1600 px = window_copy_find_length(wp, py);
1601
1602 if (data->cx == px) {
1603 if (data->screen.sel.flag && data->rectflag)
1604 px = screen_size_x(back_s);
1605 if (gd->linedata[py].flags & GRID_LINE_WRAPPED) {
1606 while (py < gd->sy + gd->hsize &&
1607 gd->linedata[py].flags & GRID_LINE_WRAPPED) {
1608 window_copy_cursor_down(wp, 0);
1609 py = screen_hsize(back_s)
1610 + data->cy - data->oy;
1611 }
1612 px = window_copy_find_length(wp, py);
1613 }
1614 }
1615 window_copy_update_cursor(wp, px, data->cy);
1616
1617 if (window_copy_update_selection(wp))
1618 window_copy_redraw_lines(wp, data->cy, 1);
1619 }
1620
1621 void
1622 window_copy_cursor_left(struct window_pane *wp)
1623 {
1624 struct window_copy_mode_data *data = wp->modedata;
1625
1626 if (data->cx == 0) {
1627 window_copy_cursor_up(wp, 0);
1628 window_copy_cursor_end_of_line(wp);
1629 } else {
1630 window_copy_update_cursor(wp, data->cx - 1, data->cy);
1631 if (window_copy_update_selection(wp))
1632 window_copy_redraw_lines(wp, data->cy, 1);
1633 }
1634 }
1635
1636 void
1637 window_copy_cursor_right(struct window_pane *wp)
1638 {
1639 struct window_copy_mode_data *data = wp->modedata;
1640 u_int px, py;
1641
1642 if (data->screen.sel.flag && data->rectflag)
1643 px = screen_size_x(&data->screen);
1644 else {
1645 py = screen_hsize(data->backing) + data->cy - data->oy;
1646 px = window_copy_find_length(wp, py);
1647 }
1648
1649 if (data->cx >= px) {
1650 window_copy_cursor_start_of_line(wp);
1651 window_copy_cursor_down(wp, 0);
1652 } else {
1653 window_copy_update_cursor(wp, data->cx + 1, data->cy);
1654 if (window_copy_update_selection(wp))
1655 window_copy_redraw_lines(wp, data->cy, 1);
1656 }
1657 }
1658
1659 void
1660 window_copy_cursor_up(struct window_pane *wp, int scroll_only)
1661 {
1662 struct window_copy_mode_data *data = wp->modedata;
1663 struct screen *s = &data->screen;
1664 u_int ox, oy, px, py;
1665
1666 oy = screen_hsize(data->backing) + data->cy - data->oy;
1667 ox = window_copy_find_length(wp, oy);
1668 if (data->cx != ox) {
1669 data->lastcx = data->cx;
1670 data->lastsx = ox;
1671 }
1672
1673 data->cx = data->lastcx;
1674 if (scroll_only || data->cy == 0) {
1675 window_copy_scroll_down(wp, 1);
1676 if (scroll_only) {
1677 if (data->cy == screen_size_y(s) - 1)
1678 window_copy_redraw_lines(wp, data->cy, 1);
1679 else
1680 window_copy_redraw_lines(wp, data->cy, 2);
1681 }
1682 } else {
1683 window_copy_update_cursor(wp, data->cx, data->cy - 1);
1684 if (window_copy_update_selection(wp)) {
1685 if (data->cy == screen_size_y(s) - 1)
1686 window_copy_redraw_lines(wp, data->cy, 1);
1687 else
1688 window_copy_redraw_lines(wp, data->cy, 2);
1689 }
1690 }
1691
1692 if (!data->screen.sel.flag || !data->rectflag) {
1693 py = screen_hsize(data->backing) + data->cy - data->oy;
1694 px = window_copy_find_length(wp, py);
1695 if ((data->cx >= data->lastsx && data->cx != px) ||
1696 data->cx > px)
1697 window_copy_cursor_end_of_line(wp);
1698 }
1699 }
1700
1701 void
1702 window_copy_cursor_down(struct window_pane *wp, int scroll_only)
1703 {
1704 struct window_copy_mode_data *data = wp->modedata;
1705 struct screen *s = &data->screen;
1706 u_int ox, oy, px, py;
1707
1708 oy = screen_hsize(data->backing) + data->cy - data->oy;
1709 ox = window_copy_find_length(wp, oy);
1710 if (data->cx != ox) {
1711 data->lastcx = data->cx;
1712 data->lastsx = ox;
1713 }
1714
1715 data->cx = data->lastcx;
1716 if (scroll_only || data->cy == screen_size_y(s) - 1) {
1717 window_copy_scroll_up(wp, 1);
1718 if (scroll_only && data->cy > 0)
1719 window_copy_redraw_lines(wp, data->cy - 1, 2);
1720 } else {
1721 window_copy_update_cursor(wp, data->cx, data->cy + 1);
1722 if (window_copy_update_selection(wp))
1723 window_copy_redraw_lines(wp, data->cy - 1, 2);
1724 }
1725
1726 if (!data->screen.sel.flag || !data->rectflag) {
1727 py = screen_hsize(data->backing) + data->cy - data->oy;
1728 px = window_copy_find_length(wp, py);
1729 if ((data->cx >= data->lastsx && data->cx != px) ||
1730 data->cx > px)
1731 window_copy_cursor_end_of_line(wp);
1732 }
1733 }
1734
1735 void
1736 window_copy_cursor_jump(struct window_pane *wp)
1737 {
1738 struct window_copy_mode_data *data = wp->modedata;
1739 struct screen *back_s = data->backing;
1740 const struct grid_cell *gc;
1741 struct utf8_data ud;
1742 u_int px, py, xx;
1743
1744 px = data->cx + 1;
1745 py = screen_hsize(back_s) + data->cy - data->oy;
1746 xx = window_copy_find_length(wp, py);
1747
1748 while (px < xx) {
1749 gc = grid_peek_cell(back_s->grid, px, py);
1750 grid_cell_get(gc, &ud);
1751 if (!(gc->flags & GRID_FLAG_PADDING) &&
1752 ud.size == 1 && *ud.data == data->jumpchar) {
1753 window_copy_update_cursor(wp, px, data->cy);
1754 if (window_copy_update_selection(wp))
1755 window_copy_redraw_lines(wp, data->cy, 1);
1756 return;
1757 }
1758 px++;
1759 }
1760 }
1761
1762 void
1763 window_copy_cursor_jump_back(struct window_pane *wp)
1764 {
1765 struct window_copy_mode_data *data = wp->modedata;
1766 struct screen *back_s = data->backing;
1767 const struct grid_cell *gc;
1768 struct utf8_data ud;
1769 u_int px, py;
1770
1771 px = data->cx;
1772 py = screen_hsize(back_s) + data->cy - data->oy;
1773
1774 if (px > 0)
1775 px--;
1776
1777 for (;;) {
1778 gc = grid_peek_cell(back_s->grid, px, py);
1779 grid_cell_get(gc, &ud);
1780 if (!(gc->flags & GRID_FLAG_PADDING) &&
1781 ud.size == 1 && *ud.data == data->jumpchar) {
1782 window_copy_update_cursor(wp, px, data->cy);
1783 if (window_copy_update_selection(wp))
1784 window_copy_redraw_lines(wp, data->cy, 1);
1785 return;
1786 }
1787 if (px == 0)
1788 break;
1789 px--;
1790 }
1791 }
1792
1793 void
1794 window_copy_cursor_jump_to(struct window_pane *wp)
1795 {
1796 struct window_copy_mode_data *data = wp->modedata;
1797 struct screen *back_s = data->backing;
1798 const struct grid_cell *gc;
1799 struct utf8_data ud;
1800 u_int px, py, xx;
1801
1802 px = data->cx + 1;
1803 py = screen_hsize(back_s) + data->cy - data->oy;
1804 xx = window_copy_find_length(wp, py);
1805
1806 while (px < xx) {
1807 gc = grid_peek_cell(back_s->grid, px, py);
1808 grid_cell_get(gc, &ud);
1809 if (!(gc->flags & GRID_FLAG_PADDING) &&
1810 ud.size == 1 && *ud.data == data->jumpchar) {
1811 window_copy_update_cursor(wp, px - 1, data->cy);
1812 if (window_copy_update_selection(wp))
1813 window_copy_redraw_lines(wp, data->cy, 1);
1814 return;
1815 }
1816 px++;
1817 }
1818 }
1819
1820 void
1821 window_copy_cursor_jump_to_back(struct window_pane *wp)
1822 {
1823 struct window_copy_mode_data *data = wp->modedata;
1824 struct screen *back_s = data->backing;
1825 const struct grid_cell *gc;
1826 struct utf8_data ud;
1827 u_int px, py;
1828
1829 px = data->cx;
1830 py = screen_hsize(back_s) + data->cy - data->oy;
1831
1832 if (px > 0)
1833 px--;
1834
1835 for (;;) {
1836 gc = grid_peek_cell(back_s->grid, px, py);
1837 grid_cell_get(gc, &ud);
1838 if (!(gc->flags & GRID_FLAG_PADDING) &&
1839 ud.size == 1 && *ud.data == data->jumpchar) {
1840 window_copy_update_cursor(wp, px + 1, data->cy);
1841 if (window_copy_update_selection(wp))
1842 window_copy_redraw_lines(wp, data->cy, 1);
1843 return;
1844 }
1845 if (px == 0)
1846 break;
1847 px--;
1848 }
1849 }
1850
1851 void
1852 window_copy_cursor_next_word(struct window_pane *wp, const char *separators)
1853 {
1854 struct window_copy_mode_data *data = wp->modedata;
1855 struct screen *back_s = data->backing;
1856 u_int px, py, xx, yy;
1857 int expected = 0;
1858
1859 px = data->cx;
1860 py = screen_hsize(back_s) + data->cy - data->oy;
1861 xx = window_copy_find_length(wp, py);
1862 yy = screen_hsize(back_s) + screen_size_y(back_s) - 1;
1863
1864 /*
1865 * First skip past any nonword characters and then any word characters.
1866 *
1867 * expected is initially set to 0 for the former and then 1 for the
1868 * latter.
1869 */
1870 do {
1871 while (px > xx ||
1872 window_copy_in_set(wp, px, py, separators) == expected) {
1873 /* Move down if we're past the end of the line. */
1874 if (px > xx) {
1875 if (py == yy)
1876 return;
1877 window_copy_cursor_down(wp, 0);
1878 px = 0;
1879
1880 py = screen_hsize(back_s) + data->cy - data->oy;
1881 xx = window_copy_find_length(wp, py);
1882 } else
1883 px++;
1884 }
1885 expected = !expected;
1886 } while (expected == 1);
1887
1888 window_copy_update_cursor(wp, px, data->cy);
1889 if (window_copy_update_selection(wp))
1890 window_copy_redraw_lines(wp, data->cy, 1);
1891 }
1892
1893 void
1894 window_copy_cursor_next_word_end(struct window_pane *wp, const char *separators)
1895 {
1896 struct window_copy_mode_data *data = wp->modedata;
1897 struct screen *back_s = data->backing;
1898 u_int px, py, xx, yy;
1899 int expected = 1;
1900
1901 px = data->cx;
1902 py = screen_hsize(back_s) + data->cy - data->oy;
1903 xx = window_copy_find_length(wp, py);
1904 yy = screen_hsize(back_s) + screen_size_y(back_s) - 1;
1905
1906 /*
1907 * First skip past any word characters, then any nonword characters.
1908 *
1909 * expected is initially set to 1 for the former and then 0 for the
1910 * latter.
1911 */
1912 do {
1913 while (px > xx ||
1914 window_copy_in_set(wp, px, py, separators) == expected) {
1915 /* Move down if we're past the end of the line. */
1916 if (px > xx) {
1917 if (py == yy)
1918 return;
1919 window_copy_cursor_down(wp, 0);
1920 px = 0;
1921
1922 py = screen_hsize(back_s) + data->cy - data->oy;
1923 xx = window_copy_find_length(wp, py);
1924 } else
1925 px++;
1926 }
1927 expected = !expected;
1928 } while (expected == 0);
1929
1930 window_copy_update_cursor(wp, px, data->cy);
1931 if (window_copy_update_selection(wp))
1932 window_copy_redraw_lines(wp, data->cy, 1);
1933 }
1934
1935 /* Move to the previous place where a word begins. */
1936 void
1937 window_copy_cursor_previous_word(struct window_pane *wp, const char *separators)
1938 {
1939 struct window_copy_mode_data *data = wp->modedata;
1940 u_int px, py;
1941
1942 px = data->cx;
1943 py = screen_hsize(data->backing) + data->cy - data->oy;
1944
1945 /* Move back to the previous word character. */
1946 for (;;) {
1947 if (px > 0) {
1948 px--;
1949 if (!window_copy_in_set(wp, px, py, separators))
1950 break;
1951 } else {
1952 if (data->cy == 0 &&
1953 (screen_hsize(data->backing) == 0 ||
1954 data->oy >= screen_hsize(data->backing) - 1))
1955 goto out;
1956 window_copy_cursor_up(wp, 0);
1957
1958 py = screen_hsize(data->backing) + data->cy - data->oy;
1959 px = window_copy_find_length(wp, py);
1960 }
1961 }
1962
1963 /* Move back to the beginning of this word. */
1964 while (px > 0 && !window_copy_in_set(wp, px - 1, py, separators))
1965 px--;
1966
1967 out:
1968 window_copy_update_cursor(wp, px, data->cy);
1969 if (window_copy_update_selection(wp))
1970 window_copy_redraw_lines(wp, data->cy, 1);
1971 }
1972
1973 void
1974 window_copy_scroll_up(struct window_pane *wp, u_int ny)
1975 {
1976 struct window_copy_mode_data *data = wp->modedata;
1977 struct screen *s = &data->screen;
1978 struct screen_write_ctx ctx;
1979
1980 if (data->oy < ny)
1981 ny = data->oy;
1982 if (ny == 0)
1983 return;
1984 data->oy -= ny;
1985
1986 screen_write_start(&ctx, wp, NULL);
1987 screen_write_cursormove(&ctx, 0, 0);
1988 screen_write_deleteline(&ctx, ny);
1989 window_copy_write_lines(wp, &ctx, screen_size_y(s) - ny, ny);
1990 window_copy_write_line(wp, &ctx, 0);
1991 if (screen_size_y(s) > 1)
1992 window_copy_write_line(wp, &ctx, 1);
1993 if (screen_size_y(s) > 3)
1994 window_copy_write_line(wp, &ctx, screen_size_y(s) - 2);
1995 if (s->sel.flag && screen_size_y(s) > ny) {
1996 window_copy_update_selection(wp);
1997 window_copy_write_line(wp, &ctx, screen_size_y(s) - ny - 1);
1998 }
1999 screen_write_cursormove(&ctx, data->cx, data->cy);
2000 window_copy_update_selection(wp);
2001 screen_write_stop(&ctx);
2002 }
2003
2004 void
2005 window_copy_scroll_down(struct window_pane *wp, u_int ny)
2006 {
2007 struct window_copy_mode_data *data = wp->modedata;
2008 struct screen *s = &data->screen;
2009 struct screen_write_ctx ctx;
2010
2011 if (ny > screen_hsize(data->backing))
2012 return;
2013
2014 if (data->oy > screen_hsize(data->backing) - ny)
2015 ny = screen_hsize(data->backing) - data->oy;
2016 if (ny == 0)
2017 return;
2018 data->oy += ny;
2019
2020 screen_write_start(&ctx, wp, NULL);
2021 screen_write_cursormove(&ctx, 0, 0);
2022 screen_write_insertline(&ctx, ny);
2023 window_copy_write_lines(wp, &ctx, 0, ny);
2024 if (s->sel.flag && screen_size_y(s) > ny) {
2025 window_copy_update_selection(wp);
2026 window_copy_write_line(wp, &ctx, ny);
2027 } else if (ny == 1) /* nuke position */
2028 window_copy_write_line(wp, &ctx, 1);
2029 screen_write_cursormove(&ctx, data->cx, data->cy);
2030 window_copy_update_selection(wp);
2031 screen_write_stop(&ctx);
2032 }
2033
2034 void
2035 window_copy_rectangle_toggle(struct window_pane *wp)
2036 {
2037 struct window_copy_mode_data *data = wp->modedata;
2038 u_int px, py;
2039
2040 data->rectflag = !data->rectflag;
2041
2042 py = screen_hsize(data->backing) + data->cy - data->oy;
2043 px = window_copy_find_length(wp, py);
2044 if (data->cx > px)
2045 window_copy_update_cursor(wp, px, data->cy);
2046
2047 window_copy_update_selection(wp);
2048 window_copy_redraw_screen(wp);
2049 }