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Drop main() prototype. Syncs with NetBSD-8
[minix.git] / external / bsd / tmux / dist / window-copy.c
blobdc714c5a072be60cf55d049e44ebdd7b381cf624
1 /* Id */
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 <ctype.h>
22 #include <stdlib.h>
23 #include <string.h>
24
25 #include "tmux.h"
26
27 struct screen *window_copy_init(struct window_pane *);
28 void window_copy_free(struct window_pane *);
29 void window_copy_resize(struct window_pane *, u_int, u_int);
30 void window_copy_key(struct window_pane *, struct session *, int);
31 int window_copy_key_input(struct window_pane *, int);
32 int window_copy_key_numeric_prefix(struct window_pane *, int);
33 void window_copy_mouse(
34 struct window_pane *, struct session *, struct mouse_event *);
35
36 void window_copy_redraw_lines(struct window_pane *, u_int, u_int);
37 void window_copy_redraw_screen(struct window_pane *);
38 void window_copy_write_line(
39 struct window_pane *, struct screen_write_ctx *, u_int);
40 void window_copy_write_lines(
41 struct window_pane *, struct screen_write_ctx *, u_int, u_int);
42
43 void window_copy_scroll_to(struct window_pane *, u_int, u_int);
44 int window_copy_search_compare(
45 struct grid *, u_int, u_int, struct grid *, u_int, int);
46 int window_copy_search_lr(
47 struct grid *, struct grid *, u_int *, u_int, u_int, u_int, int);
48 int window_copy_search_rl(
49 struct grid *, struct grid *, u_int *, u_int, u_int, u_int, int);
50 void window_copy_search_up(struct window_pane *, const char *);
51 void window_copy_search_down(struct window_pane *, const char *);
52 void window_copy_goto_line(struct window_pane *, const char *);
53 void window_copy_update_cursor(struct window_pane *, u_int, u_int);
54 void window_copy_start_selection(struct window_pane *);
55 int window_copy_update_selection(struct window_pane *, int);
56 void *window_copy_get_selection(struct window_pane *, size_t *);
57 void window_copy_copy_buffer(struct window_pane *, int, void *, size_t);
58 void window_copy_copy_pipe(
59 struct window_pane *, struct session *, int, const char *);
60 void window_copy_copy_selection(struct window_pane *, int);
61 void window_copy_clear_selection(struct window_pane *);
62 void window_copy_copy_line(
63 struct window_pane *, char **, size_t *, u_int, u_int, u_int);
64 int window_copy_in_set(struct window_pane *, u_int, u_int, const char *);
65 u_int window_copy_find_length(struct window_pane *, u_int);
66 void window_copy_cursor_start_of_line(struct window_pane *);
67 void window_copy_cursor_back_to_indentation(struct window_pane *);
68 void window_copy_cursor_end_of_line(struct window_pane *);
69 void window_copy_other_end(struct window_pane *);
70 void window_copy_cursor_left(struct window_pane *);
71 void window_copy_cursor_right(struct window_pane *);
72 void window_copy_cursor_up(struct window_pane *, int);
73 void window_copy_cursor_down(struct window_pane *, int);
74 void window_copy_cursor_jump(struct window_pane *);
75 void window_copy_cursor_jump_back(struct window_pane *);
76 void window_copy_cursor_jump_to(struct window_pane *);
77 void window_copy_cursor_jump_to_back(struct window_pane *);
78 void window_copy_cursor_next_word(struct window_pane *, const char *);
79 void window_copy_cursor_next_word_end(struct window_pane *, const char *);
80 void window_copy_cursor_previous_word(struct window_pane *, const char *);
81 void window_copy_scroll_up(struct window_pane *, u_int);
82 void window_copy_scroll_down(struct window_pane *, u_int);
83 void window_copy_rectangle_toggle(struct window_pane *);
84
85 const struct window_mode window_copy_mode = {
86 window_copy_init,
87 window_copy_free,
88 window_copy_resize,
89 window_copy_key,
90 window_copy_mouse,
91 NULL,
92 };
93
94 enum window_copy_input_type {
95 WINDOW_COPY_OFF,
96 WINDOW_COPY_NUMERICPREFIX,
97 WINDOW_COPY_SEARCHUP,
98 WINDOW_COPY_SEARCHDOWN,
99 WINDOW_COPY_JUMPFORWARD,
100 WINDOW_COPY_JUMPBACK,
101 WINDOW_COPY_JUMPTOFORWARD,
102 WINDOW_COPY_JUMPTOBACK,
103 WINDOW_COPY_GOTOLINE,
104 };
105
106 /*
107 * Copy-mode's visible screen (the "screen" field) is filled from one of
108 * two sources: the original contents of the pane (used when we
109 * actually enter via the "copy-mode" command, to copy the contents of
110 * the current pane), or else a series of lines containing the output
111 * from an output-writing tmux command (such as any of the "show-*" or
112 * "list-*" commands).
113 *
114 * In either case, the full content of the copy-mode grid is pointed at
115 * by the "backing" field, and is copied into "screen" as needed (that
116 * is, when scrolling occurs). When copy-mode is backed by a pane,
117 * backing points directly at that pane's screen structure (&wp->base);
118 * when backed by a list of output-lines from a command, it points at
119 * a newly-allocated screen structure (which is deallocated when the
120 * mode ends).
121 */
122 struct window_copy_mode_data {
123 struct screen screen;
124
125 struct screen *backing;
126 int backing_written; /* backing display has started */
127
128 struct mode_key_data mdata;
129
130 u_int oy;
131
132 u_int selx;
133 u_int sely;
134
135 u_int rectflag; /* are we in rectangle copy mode? */
136
137 u_int cx;
138 u_int cy;
139
140 u_int lastcx; /* position in last line with content */
141 u_int lastsx; /* size of last line with content */
142
143 enum window_copy_input_type inputtype;
144 const char *inputprompt;
145 char *inputstr;
146
147 int numprefix;
148
149 enum window_copy_input_type searchtype;
150 char *searchstr;
151
152 enum window_copy_input_type jumptype;
153 char jumpchar;
154 };
155
156 struct screen *
157 window_copy_init(struct window_pane *wp)
158 {
159 struct window_copy_mode_data *data;
160 struct screen *s;
161 int keys;
162
163 wp->modedata = data = xmalloc(sizeof *data);
164 data->oy = 0;
165 data->cx = 0;
166 data->cy = 0;
167
168 data->lastcx = 0;
169 data->lastsx = 0;
170
171 data->backing_written = 0;
172
173 data->rectflag = 0;
174
175 data->inputtype = WINDOW_COPY_OFF;
176 data->inputprompt = NULL;
177 data->inputstr = xstrdup("");
178 data->numprefix = -1;
179
180 data->searchtype = WINDOW_COPY_OFF;
181 data->searchstr = NULL;
182
183 if (wp->fd != -1)
184 bufferevent_disable(wp->event, EV_READ|EV_WRITE);
185
186 data->jumptype = WINDOW_COPY_OFF;
187 data->jumpchar = '\0';
188
189 s = &data->screen;
190 screen_init(s, screen_size_x(&wp->base), screen_size_y(&wp->base), 0);
191 if (options_get_number(&wp->window->options, "mode-mouse"))
192 s->mode |= MODE_MOUSE_STANDARD;
193
194 keys = options_get_number(&wp->window->options, "mode-keys");
195 if (keys == MODEKEY_EMACS)
196 mode_key_init(&data->mdata, &mode_key_tree_emacs_copy);
197 else
198 mode_key_init(&data->mdata, &mode_key_tree_vi_copy);
199
200 data->backing = NULL;
201
202 return (s);
203 }
204
205 void
206 window_copy_init_from_pane(struct window_pane *wp)
207 {
208 struct window_copy_mode_data *data = wp->modedata;
209 struct screen *s = &data->screen;
210 struct screen_write_ctx ctx;
211 u_int i;
212
213 if (wp->mode != &window_copy_mode)
214 fatalx("not in copy mode");
215
216 data->backing = &wp->base;
217 data->cx = data->backing->cx;
218 data->cy = data->backing->cy;
219
220 s->cx = data->cx;
221 s->cy = data->cy;
222
223 screen_write_start(&ctx, NULL, s);
224 for (i = 0; i < screen_size_y(s); i++)
225 window_copy_write_line(wp, &ctx, i);
226 screen_write_cursormove(&ctx, data->cx, data->cy);
227 screen_write_stop(&ctx);
228 }
229
230 void
231 window_copy_init_for_output(struct window_pane *wp)
232 {
233 struct window_copy_mode_data *data = wp->modedata;
234
235 data->backing = xmalloc(sizeof *data->backing);
236 screen_init(data->backing, screen_size_x(&wp->base),
237 screen_size_y(&wp->base), UINT_MAX);
238 data->backing->mode &= ~MODE_WRAP;
239 }
240
241 void
242 window_copy_free(struct window_pane *wp)
243 {
244 struct window_copy_mode_data *data = wp->modedata;
245
246 if (wp->fd != -1)
247 bufferevent_enable(wp->event, EV_READ|EV_WRITE);
248
249 free(data->searchstr);
250 free(data->inputstr);
251
252 if (data->backing != &wp->base) {
253 screen_free(data->backing);
254 free(data->backing);
255 }
256 screen_free(&data->screen);
257
258 free(data);
259 }
260
261 void
262 window_copy_add(struct window_pane *wp, const char *fmt, ...)
263 {
264 va_list ap;
265
266 va_start(ap, fmt);
267 window_copy_vadd(wp, fmt, ap);
268 va_end(ap);
269 }
270
271 void
272 window_copy_vadd(struct window_pane *wp, const char *fmt, va_list ap)
273 {
274 struct window_copy_mode_data *data = wp->modedata;
275 struct screen *backing = data->backing;
276 struct screen_write_ctx back_ctx, ctx;
277 struct grid_cell gc;
278 int utf8flag;
279 u_int old_hsize;
280
281 if (backing == &wp->base)
282 return;
283
284 utf8flag = options_get_number(&wp->window->options, "utf8");
285 memcpy(&gc, &grid_default_cell, sizeof gc);
286
287 old_hsize = screen_hsize(data->backing);
288 screen_write_start(&back_ctx, NULL, backing);
289 if (data->backing_written) {
290 /*
291 * On the second or later line, do a CRLF before writing
292 * (so it's on a new line).
293 */
294 screen_write_carriagereturn(&back_ctx);
295 screen_write_linefeed(&back_ctx, 0);
296 } else
297 data->backing_written = 1;
298 screen_write_vnputs(&back_ctx, 0, &gc, utf8flag, fmt, ap);
299 screen_write_stop(&back_ctx);
300
301 data->oy += screen_hsize(data->backing) - old_hsize;
302
303 screen_write_start(&ctx, wp, &data->screen);
304
305 /*
306 * If the history has changed, draw the top line.
307 * (If there's any history at all, it has changed.)
308 */
309 if (screen_hsize(data->backing))
310 window_copy_redraw_lines(wp, 0, 1);
311
312 /* Write the line, if it's visible. */
313 if (backing->cy + data->oy < screen_size_y(backing))
314 window_copy_redraw_lines(wp, backing->cy, 1);
315
316 screen_write_stop(&ctx);
317 }
318
319 void
320 window_copy_pageup(struct window_pane *wp)
321 {
322 struct window_copy_mode_data *data = wp->modedata;
323 struct screen *s = &data->screen;
324 u_int n;
325
326 n = 1;
327 if (screen_size_y(s) > 2)
328 n = screen_size_y(s) - 2;
329 if (data->oy + n > screen_hsize(data->backing))
330 data->oy = screen_hsize(data->backing);
331 else
332 data->oy += n;
333 window_copy_update_selection(wp, 1);
334 window_copy_redraw_screen(wp);
335 }
336
337 void
338 window_copy_resize(struct window_pane *wp, u_int sx, u_int sy)
339 {
340 struct window_copy_mode_data *data = wp->modedata;
341 struct screen *s = &data->screen;
342 struct screen_write_ctx ctx;
343
344 screen_resize(s, sx, sy, 0);
345 if (data->backing != &wp->base)
346 screen_resize(data->backing, sx, sy, 0);
347
348 if (data->cy > sy - 1)
349 data->cy = sy - 1;
350 if (data->cx > sx)
351 data->cx = sx;
352 if (data->oy > screen_hsize(data->backing))
353 data->oy = screen_hsize(data->backing);
354
355 window_copy_clear_selection(wp);
356
357 screen_write_start(&ctx, NULL, s);
358 window_copy_write_lines(wp, &ctx, 0, screen_size_y(s) - 1);
359 screen_write_stop(&ctx);
360
361 window_copy_redraw_screen(wp);
362 }
363
364 void
365 window_copy_key(struct window_pane *wp, struct session *sess, int key)
366 {
367 const char *word_separators;
368 struct window_copy_mode_data *data = wp->modedata;
369 struct screen *s = &data->screen;
370 u_int n;
371 int np, keys;
372 enum mode_key_cmd cmd;
373 const char *arg;
374
375 np = data->numprefix;
376 if (np <= 0)
377 np = 1;
378
379 if (data->inputtype == WINDOW_COPY_JUMPFORWARD ||
380 data->inputtype == WINDOW_COPY_JUMPBACK ||
381 data->inputtype == WINDOW_COPY_JUMPTOFORWARD ||
382 data->inputtype == WINDOW_COPY_JUMPTOBACK) {
383 /* Ignore keys with modifiers. */
384 if ((key & KEYC_MASK_MOD) == 0) {
385 data->jumpchar = key;
386 if (data->inputtype == WINDOW_COPY_JUMPFORWARD) {
387 for (; np != 0; np--)
388 window_copy_cursor_jump(wp);
389 } else if (data->inputtype == WINDOW_COPY_JUMPBACK) {
390 for (; np != 0; np--)
391 window_copy_cursor_jump_back(wp);
392 } else if (data->inputtype == WINDOW_COPY_JUMPTOFORWARD) {
393 for (; np != 0; np--)
394 window_copy_cursor_jump_to(wp);
395 } else if (data->inputtype == WINDOW_COPY_JUMPTOBACK) {
396 for (; np != 0; np--)
397 window_copy_cursor_jump_to_back(wp);
398 }
399 }
400 data->jumptype = data->inputtype;
401 data->inputtype = WINDOW_COPY_OFF;
402 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
403 return;
404 } else if (data->inputtype == WINDOW_COPY_NUMERICPREFIX) {
405 if (window_copy_key_numeric_prefix(wp, key) == 0)
406 return;
407 data->inputtype = WINDOW_COPY_OFF;
408 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
409 } else if (data->inputtype != WINDOW_COPY_OFF) {
410 if (window_copy_key_input(wp, key) != 0)
411 goto input_off;
412 return;
413 }
414
415 cmd = mode_key_lookup(&data->mdata, key, &arg);
416 switch (cmd) {
417 case MODEKEYCOPY_CANCEL:
418 window_pane_reset_mode(wp);
419 return;
420 case MODEKEYCOPY_OTHEREND:
421 for (; np != 0; np--)
422 window_copy_other_end(wp);
423 break;
424 case MODEKEYCOPY_LEFT:
425 for (; np != 0; np--)
426 window_copy_cursor_left(wp);
427 break;
428 case MODEKEYCOPY_RIGHT:
429 for (; np != 0; np--)
430 window_copy_cursor_right(wp);
431 break;
432 case MODEKEYCOPY_UP:
433 for (; np != 0; np--)
434 window_copy_cursor_up(wp, 0);
435 break;
436 case MODEKEYCOPY_DOWN:
437 for (; np != 0; np--)
438 window_copy_cursor_down(wp, 0);
439 break;
440 case MODEKEYCOPY_SCROLLUP:
441 for (; np != 0; np--)
442 window_copy_cursor_up(wp, 1);
443 break;
444 case MODEKEYCOPY_SCROLLDOWN:
445 for (; np != 0; np--)
446 window_copy_cursor_down(wp, 1);
447 break;
448 case MODEKEYCOPY_PREVIOUSPAGE:
449 for (; np != 0; np--)
450 window_copy_pageup(wp);
451 break;
452 case MODEKEYCOPY_NEXTPAGE:
453 n = 1;
454 if (screen_size_y(s) > 2)
455 n = screen_size_y(s) - 2;
456 for (; np != 0; np--) {
457 if (data->oy < n)
458 data->oy = 0;
459 else
460 data->oy -= n;
461 }
462 window_copy_update_selection(wp, 1);
463 window_copy_redraw_screen(wp);
464 break;
465 case MODEKEYCOPY_HALFPAGEUP:
466 n = screen_size_y(s) / 2;
467 for (; np != 0; np--) {
468 if (data->oy + n > screen_hsize(data->backing))
469 data->oy = screen_hsize(data->backing);
470 else
471 data->oy += n;
472 }
473 window_copy_update_selection(wp, 1);
474 window_copy_redraw_screen(wp);
475 break;
476 case MODEKEYCOPY_HALFPAGEDOWN:
477 n = screen_size_y(s) / 2;
478 for (; np != 0; np--) {
479 if (data->oy < n)
480 data->oy = 0;
481 else
482 data->oy -= n;
483 }
484 window_copy_update_selection(wp, 1);
485 window_copy_redraw_screen(wp);
486 break;
487 case MODEKEYCOPY_TOPLINE:
488 data->cx = 0;
489 data->cy = 0;
490 window_copy_update_selection(wp, 1);
491 window_copy_redraw_screen(wp);
492 break;
493 case MODEKEYCOPY_MIDDLELINE:
494 data->cx = 0;
495 data->cy = (screen_size_y(s) - 1) / 2;
496 window_copy_update_selection(wp, 1);
497 window_copy_redraw_screen(wp);
498 break;
499 case MODEKEYCOPY_BOTTOMLINE:
500 data->cx = 0;
501 data->cy = screen_size_y(s) - 1;
502 window_copy_update_selection(wp, 1);
503 window_copy_redraw_screen(wp);
504 break;
505 case MODEKEYCOPY_HISTORYTOP:
506 data->cx = 0;
507 data->cy = 0;
508 data->oy = screen_hsize(data->backing);
509 window_copy_update_selection(wp, 1);
510 window_copy_redraw_screen(wp);
511 break;
512 case MODEKEYCOPY_HISTORYBOTTOM:
513 data->cx = 0;
514 data->cy = screen_size_y(s) - 1;
515 data->oy = 0;
516 window_copy_update_selection(wp, 1);
517 window_copy_redraw_screen(wp);
518 break;
519 case MODEKEYCOPY_STARTSELECTION:
520 window_copy_start_selection(wp);
521 window_copy_redraw_screen(wp);
522 break;
523 case MODEKEYCOPY_COPYLINE:
524 case MODEKEYCOPY_SELECTLINE:
525 window_copy_cursor_start_of_line(wp);
526 /* FALLTHROUGH */
527 case MODEKEYCOPY_COPYENDOFLINE:
528 window_copy_start_selection(wp);
529 for (; np > 1; np--)
530 window_copy_cursor_down(wp, 0);
531 window_copy_cursor_end_of_line(wp);
532 window_copy_redraw_screen(wp);
533
534 /* If a copy command then copy the selection and exit. */
535 if (sess != NULL &&
536 (cmd == MODEKEYCOPY_COPYLINE ||
537 cmd == MODEKEYCOPY_COPYENDOFLINE)) {
538 window_copy_copy_selection(wp, -1);
539 window_pane_reset_mode(wp);
540 return;
541 }
542 break;
543 case MODEKEYCOPY_CLEARSELECTION:
544 window_copy_clear_selection(wp);
545 window_copy_redraw_screen(wp);
546 break;
547 case MODEKEYCOPY_COPYPIPE:
548 if (sess != NULL) {
549 window_copy_copy_pipe(wp, sess, data->numprefix, arg);
550 window_pane_reset_mode(wp);
551 return;
552 }
553 break;
554 case MODEKEYCOPY_COPYSELECTION:
555 if (sess != NULL) {
556 window_copy_copy_selection(wp, data->numprefix);
557 window_pane_reset_mode(wp);
558 return;
559 }
560 break;
561 case MODEKEYCOPY_STARTOFLINE:
562 window_copy_cursor_start_of_line(wp);
563 break;
564 case MODEKEYCOPY_BACKTOINDENTATION:
565 window_copy_cursor_back_to_indentation(wp);
566 break;
567 case MODEKEYCOPY_ENDOFLINE:
568 window_copy_cursor_end_of_line(wp);
569 break;
570 case MODEKEYCOPY_NEXTSPACE:
571 for (; np != 0; np--)
572 window_copy_cursor_next_word(wp, " ");
573 break;
574 case MODEKEYCOPY_NEXTSPACEEND:
575 for (; np != 0; np--)
576 window_copy_cursor_next_word_end(wp, " ");
577 break;
578 case MODEKEYCOPY_NEXTWORD:
579 word_separators =
580 options_get_string(&sess->options, "word-separators");
581 for (; np != 0; np--)
582 window_copy_cursor_next_word(wp, word_separators);
583 break;
584 case MODEKEYCOPY_NEXTWORDEND:
585 word_separators =
586 options_get_string(&sess->options, "word-separators");
587 for (; np != 0; np--)
588 window_copy_cursor_next_word_end(wp, word_separators);
589 break;
590 case MODEKEYCOPY_PREVIOUSSPACE:
591 for (; np != 0; np--)
592 window_copy_cursor_previous_word(wp, " ");
593 break;
594 case MODEKEYCOPY_PREVIOUSWORD:
595 word_separators =
596 options_get_string(&sess->options, "word-separators");
597 for (; np != 0; np--)
598 window_copy_cursor_previous_word(wp, word_separators);
599 break;
600 case MODEKEYCOPY_JUMP:
601 data->inputtype = WINDOW_COPY_JUMPFORWARD;
602 data->inputprompt = "Jump Forward";
603 *data->inputstr = '\0';
604 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
605 return; /* skip numprefix reset */
606 case MODEKEYCOPY_JUMPAGAIN:
607 if (data->jumptype == WINDOW_COPY_JUMPFORWARD) {
608 for (; np != 0; np--)
609 window_copy_cursor_jump(wp);
610 } else if (data->jumptype == WINDOW_COPY_JUMPBACK) {
611 for (; np != 0; np--)
612 window_copy_cursor_jump_back(wp);
613 } else if (data->jumptype == WINDOW_COPY_JUMPTOFORWARD) {
614 for (; np != 0; np--)
615 window_copy_cursor_jump_to(wp);
616 } else if (data->jumptype == WINDOW_COPY_JUMPTOBACK) {
617 for (; np != 0; np--)
618 window_copy_cursor_jump_to_back(wp);
619 }
620 break;
621 case MODEKEYCOPY_JUMPREVERSE:
622 if (data->jumptype == WINDOW_COPY_JUMPFORWARD) {
623 for (; np != 0; np--)
624 window_copy_cursor_jump_back(wp);
625 } else if (data->jumptype == WINDOW_COPY_JUMPBACK) {
626 for (; np != 0; np--)
627 window_copy_cursor_jump(wp);
628 } else if (data->jumptype == WINDOW_COPY_JUMPTOFORWARD) {
629 for (; np != 0; np--)
630 window_copy_cursor_jump_to_back(wp);
631 } else if (data->jumptype == WINDOW_COPY_JUMPTOBACK) {
632 for (; np != 0; np--)
633 window_copy_cursor_jump_to(wp);
634 }
635 break;
636 case MODEKEYCOPY_JUMPBACK:
637 data->inputtype = WINDOW_COPY_JUMPBACK;
638 data->inputprompt = "Jump Back";
639 *data->inputstr = '\0';
640 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
641 return; /* skip numprefix reset */
642 case MODEKEYCOPY_JUMPTO:
643 data->inputtype = WINDOW_COPY_JUMPTOFORWARD;
644 data->inputprompt = "Jump To";
645 *data->inputstr = '\0';
646 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
647 return; /* skip numprefix reset */
648 case MODEKEYCOPY_JUMPTOBACK:
649 data->inputtype = WINDOW_COPY_JUMPTOBACK;
650 data->inputprompt = "Jump To Back";
651 *data->inputstr = '\0';
652 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
653 return; /* skip numprefix reset */
654 case MODEKEYCOPY_SEARCHUP:
655 data->inputtype = WINDOW_COPY_SEARCHUP;
656 data->inputprompt = "Search Up";
657 goto input_on;
658 case MODEKEYCOPY_SEARCHDOWN:
659 data->inputtype = WINDOW_COPY_SEARCHDOWN;
660 data->inputprompt = "Search Down";
661 goto input_on;
662 case MODEKEYCOPY_SEARCHAGAIN:
663 case MODEKEYCOPY_SEARCHREVERSE:
664 switch (data->searchtype) {
665 case WINDOW_COPY_OFF:
666 case WINDOW_COPY_GOTOLINE:
667 case WINDOW_COPY_JUMPFORWARD:
668 case WINDOW_COPY_JUMPBACK:
669 case WINDOW_COPY_JUMPTOFORWARD:
670 case WINDOW_COPY_JUMPTOBACK:
671 case WINDOW_COPY_NUMERICPREFIX:
672 break;
673 case WINDOW_COPY_SEARCHUP:
674 if (cmd == MODEKEYCOPY_SEARCHAGAIN) {
675 for (; np != 0; np--) {
676 window_copy_search_up(
677 wp, data->searchstr);
678 }
679 } else {
680 for (; np != 0; np--) {
681 window_copy_search_down(
682 wp, data->searchstr);
683 }
684 }
685 break;
686 case WINDOW_COPY_SEARCHDOWN:
687 if (cmd == MODEKEYCOPY_SEARCHAGAIN) {
688 for (; np != 0; np--) {
689 window_copy_search_down(
690 wp, data->searchstr);
691 }
692 } else {
693 for (; np != 0; np--) {
694 window_copy_search_up(
695 wp, data->searchstr);
696 }
697 }
698 break;
699 }
700 break;
701 case MODEKEYCOPY_GOTOLINE:
702 data->inputtype = WINDOW_COPY_GOTOLINE;
703 data->inputprompt = "Goto Line";
704 *data->inputstr = '\0';
705 goto input_on;
706 case MODEKEYCOPY_STARTNUMBERPREFIX:
707 key &= KEYC_MASK_KEY;
708 if (key >= '0' && key <= '9') {
709 data->inputtype = WINDOW_COPY_NUMERICPREFIX;
710 data->numprefix = 0;
711 window_copy_key_numeric_prefix(wp, key);
712 return;
713 }
714 break;
715 case MODEKEYCOPY_RECTANGLETOGGLE:
716 window_copy_rectangle_toggle(wp);
717 break;
718 default:
719 break;
720 }
721
722 data->numprefix = -1;
723 return;
724
725 input_on:
726 keys = options_get_number(&wp->window->options, "mode-keys");
727 if (keys == MODEKEY_EMACS)
728 mode_key_init(&data->mdata, &mode_key_tree_emacs_edit);
729 else
730 mode_key_init(&data->mdata, &mode_key_tree_vi_edit);
731
732 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
733 return;
734
735 input_off:
736 keys = options_get_number(&wp->window->options, "mode-keys");
737 if (keys == MODEKEY_EMACS)
738 mode_key_init(&data->mdata, &mode_key_tree_emacs_copy);
739 else
740 mode_key_init(&data->mdata, &mode_key_tree_vi_copy);
741
742 data->inputtype = WINDOW_COPY_OFF;
743 data->inputprompt = NULL;
744
745 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
746 }
747
748 int
749 window_copy_key_input(struct window_pane *wp, int key)
750 {
751 struct window_copy_mode_data *data = wp->modedata;
752 struct screen *s = &data->screen;
753 size_t inputlen, n;
754 int np;
755 struct paste_buffer *pb;
756 u_char ch;
757
758 switch (mode_key_lookup(&data->mdata, key, NULL)) {
759 case MODEKEYEDIT_CANCEL:
760 data->numprefix = -1;
761 return (-1);
762 case MODEKEYEDIT_BACKSPACE:
763 inputlen = strlen(data->inputstr);
764 if (inputlen > 0)
765 data->inputstr[inputlen - 1] = '\0';
766 break;
767 case MODEKEYEDIT_DELETELINE:
768 *data->inputstr = '\0';
769 break;
770 case MODEKEYEDIT_PASTE:
771 if ((pb = paste_get_top(&global_buffers)) == NULL)
772 break;
773 for (n = 0; n < pb->size; n++) {
774 ch = (u_char) pb->data[n];
775 if (ch < 32 || ch == 127)
776 break;
777 }
778 inputlen = strlen(data->inputstr);
779
780 data->inputstr = xrealloc(data->inputstr, 1, inputlen + n + 1);
781 memcpy(data->inputstr + inputlen, pb->data, n);
782 data->inputstr[inputlen + n] = '\0';
783 break;
784 case MODEKEYEDIT_ENTER:
785 np = data->numprefix;
786 if (np <= 0)
787 np = 1;
788
789 switch (data->inputtype) {
790 case WINDOW_COPY_OFF:
791 case WINDOW_COPY_JUMPFORWARD:
792 case WINDOW_COPY_JUMPBACK:
793 case WINDOW_COPY_JUMPTOFORWARD:
794 case WINDOW_COPY_JUMPTOBACK:
795 case WINDOW_COPY_NUMERICPREFIX:
796 break;
797 case WINDOW_COPY_SEARCHUP:
798 for (; np != 0; np--)
799 window_copy_search_up(wp, data->inputstr);
800 data->searchtype = data->inputtype;
801 data->searchstr = xstrdup(data->inputstr);
802 break;
803 case WINDOW_COPY_SEARCHDOWN:
804 for (; np != 0; np--)
805 window_copy_search_down(wp, data->inputstr);
806 data->searchtype = data->inputtype;
807 data->searchstr = xstrdup(data->inputstr);
808 break;
809 case WINDOW_COPY_GOTOLINE:
810 window_copy_goto_line(wp, data->inputstr);
811 *data->inputstr = '\0';
812 break;
813 }
814 data->numprefix = -1;
815 return (1);
816 case MODEKEY_OTHER:
817 if (key < 32 || key > 126)
818 break;
819 inputlen = strlen(data->inputstr) + 2;
820
821 data->inputstr = xrealloc(data->inputstr, 1, inputlen);
822 data->inputstr[inputlen - 2] = key;
823 data->inputstr[inputlen - 1] = '\0';
824 break;
825 default:
826 break;
827 }
828
829 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
830 return (0);
831 }
832
833 int
834 window_copy_key_numeric_prefix(struct window_pane *wp, int key)
835 {
836 struct window_copy_mode_data *data = wp->modedata;
837 struct screen *s = &data->screen;
838
839 key &= KEYC_MASK_KEY;
840 if (key < '0' || key > '9')
841 return (1);
842
843 if (data->numprefix >= 100) /* no more than three digits */
844 return (0);
845 data->numprefix = data->numprefix * 10 + key - '0';
846
847 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
848 return (0);
849 }
850
851 void
852 window_copy_mouse(
853 struct window_pane *wp, struct session *sess, struct mouse_event *m)
854 {
855 struct window_copy_mode_data *data = wp->modedata;
856 struct screen *s = &data->screen;
857 u_int i;
858
859 if (m->x >= screen_size_x(s))
860 return;
861 if (m->y >= screen_size_y(s))
862 return;
863
864 /* If mouse wheel (buttons 4 and 5), scroll. */
865 if (m->event == MOUSE_EVENT_WHEEL) {
866 if (m->wheel == MOUSE_WHEEL_UP) {
867 for (i = 0; i < 5; i++)
868 window_copy_cursor_up(wp, 1);
869 } else if (m->wheel == MOUSE_WHEEL_DOWN) {
870 for (i = 0; i < 5; i++)
871 window_copy_cursor_down(wp, 1);
872 /*
873 * We reached the bottom, leave copy mode,
874 * but only if no selection is in progress.
875 */
876 if (data->oy == 0 && !s->sel.flag)
877 goto reset_mode;
878 }
879 return;
880 }
881
882 /*
883 * If already reading motion, move the cursor while buttons are still
884 * pressed, or stop the selection on their release.
885 */
886 if (s->mode & MODE_MOUSE_BUTTON) {
887 if (~m->event & MOUSE_EVENT_UP) {
888 window_copy_update_cursor(wp, m->x, m->y);
889 if (window_copy_update_selection(wp, 1))
890 window_copy_redraw_screen(wp);
891 return;
892 }
893 goto reset_mode;
894 }
895
896 /* Otherwise if other buttons pressed, start selection and motion. */
897 if (~m->event & MOUSE_EVENT_UP) {
898 s->mode &= ~MODE_MOUSE_STANDARD;
899 s->mode |= MODE_MOUSE_BUTTON;
900
901 window_copy_update_cursor(wp, m->x, m->y);
902 window_copy_start_selection(wp);
903 window_copy_redraw_screen(wp);
904 }
905
906 return;
907
908 reset_mode:
909 s->mode &= ~MODE_MOUSE_BUTTON;
910 s->mode |= MODE_MOUSE_STANDARD;
911 if (sess != NULL) {
912 window_copy_copy_selection(wp, -1);
913 window_pane_reset_mode(wp);
914 }
915 }
916
917 void
918 window_copy_scroll_to(struct window_pane *wp, u_int px, u_int py)
919 {
920 struct window_copy_mode_data *data = wp->modedata;
921 struct grid *gd = data->backing->grid;
922 u_int offset, gap;
923
924 data->cx = px;
925
926 gap = gd->sy / 4;
927 if (py < gd->sy) {
928 offset = 0;
929 data->cy = py;
930 } else if (py > gd->hsize + gd->sy - gap) {
931 offset = gd->hsize;
932 data->cy = py - gd->hsize;
933 } else {
934 offset = py + gap - gd->sy;
935 data->cy = py - offset;
936 }
937 data->oy = gd->hsize - offset;
938
939 window_copy_update_selection(wp, 1);
940 window_copy_redraw_screen(wp);
941 }
942
943 int
944 window_copy_search_compare(
945 struct grid *gd, u_int px, u_int py, struct grid *sgd, u_int spx, int cis)
946 {
947 const struct grid_cell *gc, *sgc;
948 struct utf8_data ud, sud;
949
950 gc = grid_peek_cell(gd, px, py);
951 grid_cell_get(gc, &ud);
952 sgc = grid_peek_cell(sgd, spx, 0);
953 grid_cell_get(sgc, &sud);
954
955 if (ud.size != sud.size || ud.width != sud.width)
956 return (0);
957
958 if (cis && ud.size == 1)
959 return (tolower(ud.data[0]) == sud.data[0]);
960
961 return (memcmp(ud.data, sud.data, ud.size) == 0);
962 }
963
964 int
965 window_copy_search_lr(struct grid *gd,
966 struct grid *sgd, u_int *ppx, u_int py, u_int first, u_int last, int cis)
967 {
968 u_int ax, bx, px;
969 int matched;
970
971 for (ax = first; ax < last; ax++) {
972 if (ax + sgd->sx >= gd->sx)
973 break;
974 for (bx = 0; bx < sgd->sx; bx++) {
975 px = ax + bx;
976 matched = window_copy_search_compare(gd, px, py, sgd,
977 bx, cis);
978 if (!matched)
979 break;
980 }
981 if (bx == sgd->sx) {
982 *ppx = ax;
983 return (1);
984 }
985 }
986 return (0);
987 }
988
989 int
990 window_copy_search_rl(struct grid *gd,
991 struct grid *sgd, u_int *ppx, u_int py, u_int first, u_int last, int cis)
992 {
993 u_int ax, bx, px;
994 int matched;
995
996 for (ax = last + 1; ax > first; ax--) {
997 if (gd->sx - (ax - 1) < sgd->sx)
998 continue;
999 for (bx = 0; bx < sgd->sx; bx++) {
1000 px = ax - 1 + bx;
1001 matched = window_copy_search_compare(gd, px, py, sgd,
1002 bx, cis);
1003 if (!matched)
1004 break;
1005 }
1006 if (bx == sgd->sx) {
1007 *ppx = ax - 1;
1008 return (1);
1009 }
1010 }
1011 return (0);
1012 }
1013
1014 void
1015 window_copy_search_up(struct window_pane *wp, const char *searchstr)
1016 {
1017 struct window_copy_mode_data *data = wp->modedata;
1018 struct screen *s = data->backing, ss;
1019 struct screen_write_ctx ctx;
1020 struct grid *gd = s->grid, *sgd;
1021 struct grid_cell gc;
1022 size_t searchlen;
1023 u_int i, last, fx, fy, px;
1024 int utf8flag, n, wrapped, wrapflag, cis;
1025 const char *ptr;
1026
1027 if (*searchstr == '\0')
1028 return;
1029 utf8flag = options_get_number(&wp->window->options, "utf8");
1030 wrapflag = options_get_number(&wp->window->options, "wrap-search");
1031 searchlen = screen_write_strlen(utf8flag, "%s", searchstr);
1032
1033 screen_init(&ss, searchlen, 1, 0);
1034 screen_write_start(&ctx, NULL, &ss);
1035 memcpy(&gc, &grid_default_cell, sizeof gc);
1036 screen_write_nputs(&ctx, -1, &gc, utf8flag, "%s", searchstr);
1037 screen_write_stop(&ctx);
1038
1039 fx = data->cx;
1040 fy = gd->hsize - data->oy + data->cy;
1041
1042 if (fx == 0) {
1043 if (fy == 0)
1044 return;
1045 fx = gd->sx - 1;
1046 fy--;
1047 } else
1048 fx--;
1049 n = wrapped = 0;
1050
1051 cis = 1;
1052 for (ptr = searchstr; *ptr != '\0'; ptr++) {
1053 if (*ptr != tolower((u_char)*ptr)) {
1054 cis = 0;
1055 break;
1056 }
1057 }
1058
1059 retry:
1060 sgd = ss.grid;
1061 for (i = fy + 1; i > 0; i--) {
1062 last = screen_size_x(s);
1063 if (i == fy + 1)
1064 last = fx;
1065 n = window_copy_search_rl(gd, sgd, &px, i - 1, 0, last, cis);
1066 if (n) {
1067 window_copy_scroll_to(wp, px, i - 1);
1068 break;
1069 }
1070 }
1071 if (wrapflag && !n && !wrapped) {
1072 fx = gd->sx - 1;
1073 fy = gd->hsize + gd->sy - 1;
1074 wrapped = 1;
1075 goto retry;
1076 }
1077
1078 screen_free(&ss);
1079 }
1080
1081 void
1082 window_copy_search_down(struct window_pane *wp, const char *searchstr)
1083 {
1084 struct window_copy_mode_data *data = wp->modedata;
1085 struct screen *s = data->backing, ss;
1086 struct screen_write_ctx ctx;
1087 struct grid *gd = s->grid, *sgd;
1088 struct grid_cell gc;
1089 size_t searchlen;
1090 u_int i, first, fx, fy, px;
1091 int utf8flag, n, wrapped, wrapflag, cis;
1092 const char *ptr;
1093
1094 if (*searchstr == '\0')
1095 return;
1096 utf8flag = options_get_number(&wp->window->options, "utf8");
1097 wrapflag = options_get_number(&wp->window->options, "wrap-search");
1098 searchlen = screen_write_strlen(utf8flag, "%s", searchstr);
1099
1100 screen_init(&ss, searchlen, 1, 0);
1101 screen_write_start(&ctx, NULL, &ss);
1102 memcpy(&gc, &grid_default_cell, sizeof gc);
1103 screen_write_nputs(&ctx, -1, &gc, utf8flag, "%s", searchstr);
1104 screen_write_stop(&ctx);
1105
1106 fx = data->cx;
1107 fy = gd->hsize - data->oy + data->cy;
1108
1109 if (fx == gd->sx - 1) {
1110 if (fy == gd->hsize + gd->sy)
1111 return;
1112 fx = 0;
1113 fy++;
1114 } else
1115 fx++;
1116 n = wrapped = 0;
1117
1118 cis = 1;
1119 for (ptr = searchstr; *ptr != '\0'; ptr++) {
1120 if (*ptr != tolower((u_char)*ptr)) {
1121 cis = 0;
1122 break;
1123 }
1124 }
1125
1126 retry:
1127 sgd = ss.grid;
1128 for (i = fy + 1; i < gd->hsize + gd->sy + 1; i++) {
1129 first = 0;
1130 if (i == fy + 1)
1131 first = fx;
1132 n = window_copy_search_lr(gd, sgd, &px, i - 1, first, gd->sx,
1133 cis);
1134 if (n) {
1135 window_copy_scroll_to(wp, px, i - 1);
1136 break;
1137 }
1138 }
1139 if (wrapflag && !n && !wrapped) {
1140 fx = 0;
1141 fy = 0;
1142 wrapped = 1;
1143 goto retry;
1144 }
1145
1146 screen_free(&ss);
1147 }
1148
1149 void
1150 window_copy_goto_line(struct window_pane *wp, const char *linestr)
1151 {
1152 struct window_copy_mode_data *data = wp->modedata;
1153 const char *errstr;
1154 u_int lineno;
1155
1156 lineno = strtonum(linestr, 0, screen_hsize(data->backing), &errstr);
1157 if (errstr != NULL)
1158 return;
1159
1160 data->oy = lineno;
1161 window_copy_update_selection(wp, 1);
1162 window_copy_redraw_screen(wp);
1163 }
1164
1165 void
1166 window_copy_write_line(
1167 struct window_pane *wp, struct screen_write_ctx *ctx, u_int py)
1168 {
1169 struct window_copy_mode_data *data = wp->modedata;
1170 struct screen *s = &data->screen;
1171 struct options *oo = &wp->window->options;
1172 struct grid_cell gc;
1173 char hdr[512];
1174 size_t last, xoff = 0, size = 0, limit;
1175
1176 style_apply(&gc, oo, "mode-style");
1177
1178 last = screen_size_y(s) - 1;
1179 if (py == 0) {
1180 size = xsnprintf(hdr, sizeof hdr,
1181 "[%u/%u]", data->oy, screen_hsize(data->backing));
1182 if (size > screen_size_x(s))
1183 size = screen_size_x(s);
1184 screen_write_cursormove(ctx, screen_size_x(s) - size, 0);
1185 screen_write_puts(ctx, &gc, "%s", hdr);
1186 } else if (py == last && data->inputtype != WINDOW_COPY_OFF) {
1187 limit = sizeof hdr;
1188 if (limit > screen_size_x(s))
1189 limit = screen_size_x(s);
1190 if (data->inputtype == WINDOW_COPY_NUMERICPREFIX) {
1191 xoff = size = xsnprintf(hdr, limit,
1192 "Repeat: %u", data->numprefix);
1193 } else {
1194 xoff = size = xsnprintf(hdr, limit,
1195 "%s: %s", data->inputprompt, data->inputstr);
1196 }
1197 screen_write_cursormove(ctx, 0, last);
1198 screen_write_puts(ctx, &gc, "%s", hdr);
1199 } else
1200 size = 0;
1201
1202 screen_write_cursormove(ctx, xoff, py);
1203 screen_write_copy(ctx, data->backing, xoff,
1204 (screen_hsize(data->backing) - data->oy) + py,
1205 screen_size_x(s) - size, 1);
1206
1207 if (py == data->cy && data->cx == screen_size_x(s)) {
1208 memcpy(&gc, &grid_default_cell, sizeof gc);
1209 screen_write_cursormove(ctx, screen_size_x(s) - 1, py);
1210 screen_write_putc(ctx, &gc, '$');
1211 }
1212 }
1213
1214 void
1215 window_copy_write_lines(
1216 struct window_pane *wp, struct screen_write_ctx *ctx, u_int py, u_int ny)
1217 {
1218 u_int yy;
1219
1220 for (yy = py; yy < py + ny; yy++)
1221 window_copy_write_line(wp, ctx, py);
1222 }
1223
1224 void
1225 window_copy_redraw_lines(struct window_pane *wp, u_int py, u_int ny)
1226 {
1227 struct window_copy_mode_data *data = wp->modedata;
1228 struct screen_write_ctx ctx;
1229 u_int i;
1230
1231 screen_write_start(&ctx, wp, NULL);
1232 for (i = py; i < py + ny; i++)
1233 window_copy_write_line(wp, &ctx, i);
1234 screen_write_cursormove(&ctx, data->cx, data->cy);
1235 screen_write_stop(&ctx);
1236 }
1237
1238 void
1239 window_copy_redraw_screen(struct window_pane *wp)
1240 {
1241 struct window_copy_mode_data *data = wp->modedata;
1242
1243 window_copy_redraw_lines(wp, 0, screen_size_y(&data->screen));
1244 }
1245
1246 void
1247 window_copy_update_cursor(struct window_pane *wp, u_int cx, u_int cy)
1248 {
1249 struct window_copy_mode_data *data = wp->modedata;
1250 struct screen *s = &data->screen;
1251 struct screen_write_ctx ctx;
1252 u_int old_cx, old_cy;
1253
1254 old_cx = data->cx; old_cy = data->cy;
1255 data->cx = cx; data->cy = cy;
1256 if (old_cx == screen_size_x(s))
1257 window_copy_redraw_lines(wp, old_cy, 1);
1258 if (data->cx == screen_size_x(s))
1259 window_copy_redraw_lines(wp, data->cy, 1);
1260 else {
1261 screen_write_start(&ctx, wp, NULL);
1262 screen_write_cursormove(&ctx, data->cx, data->cy);
1263 screen_write_stop(&ctx);
1264 }
1265 }
1266
1267 void
1268 window_copy_start_selection(struct window_pane *wp)
1269 {
1270 struct window_copy_mode_data *data = wp->modedata;
1271 struct screen *s = &data->screen;
1272
1273 data->selx = data->cx;
1274 data->sely = screen_hsize(data->backing) + data->cy - data->oy;
1275
1276 s->sel.flag = 1;
1277 window_copy_update_selection(wp, 1);
1278 }
1279
1280 int
1281 window_copy_update_selection(struct window_pane *wp, int may_redraw)
1282 {
1283 struct window_copy_mode_data *data = wp->modedata;
1284 struct screen *s = &data->screen;
1285 struct options *oo = &wp->window->options;
1286 struct grid_cell gc;
1287 u_int sx, sy, ty, cy;
1288
1289 if (!s->sel.flag)
1290 return (0);
1291
1292 /* Set colours. */
1293 style_apply(&gc, oo, "mode-style");
1294
1295 /* Find top of screen. */
1296 ty = screen_hsize(data->backing) - data->oy;
1297
1298 /* Adjust the selection. */
1299 sx = data->selx;
1300 sy = data->sely;
1301 if (sy < ty) { /* above screen */
1302 if (!data->rectflag)
1303 sx = 0;
1304 sy = 0;
1305 } else if (sy > ty + screen_size_y(s) - 1) { /* below screen */
1306 if (!data->rectflag)
1307 sx = screen_size_x(s) - 1;
1308 sy = screen_size_y(s) - 1;
1309 } else
1310 sy -= ty;
1311 sy = screen_hsize(s) + sy;
1312
1313 screen_set_selection(s,
1314 sx, sy, data->cx, screen_hsize(s) + data->cy, data->rectflag, &gc);
1315
1316 if (data->rectflag && may_redraw) {
1317 /*
1318 * Can't rely on the caller to redraw the right lines for
1319 * rectangle selection - find the highest line and the number
1320 * of lines, and redraw just past that in both directions
1321 */
1322 cy = data->cy;
1323 if (sy < cy)
1324 window_copy_redraw_lines(wp, sy, cy - sy + 1);
1325 else
1326 window_copy_redraw_lines(wp, cy, sy - cy + 1);
1327 }
1328
1329 return (1);
1330 }
1331
1332 void *
1333 window_copy_get_selection(struct window_pane *wp, size_t *len)
1334 {
1335 struct window_copy_mode_data *data = wp->modedata;
1336 struct screen *s = &data->screen;
1337 char *buf;
1338 size_t off;
1339 u_int i, xx, yy, sx, sy, ex, ey;
1340 u_int firstsx, lastex, restex, restsx;
1341 int keys;
1342
1343 if (!s->sel.flag)
1344 return (NULL);
1345
1346 buf = xmalloc(1);
1347 off = 0;
1348
1349 *buf = '\0';
1350
1351 /*
1352 * The selection extends from selx,sely to (adjusted) cx,cy on
1353 * the base screen.
1354 */
1355
1356 /* Find start and end. */
1357 xx = data->cx;
1358 yy = screen_hsize(data->backing) + data->cy - data->oy;
1359 if (yy < data->sely || (yy == data->sely && xx < data->selx)) {
1360 sx = xx; sy = yy;
1361 ex = data->selx; ey = data->sely;
1362 } else {
1363 sx = data->selx; sy = data->sely;
1364 ex = xx; ey = yy;
1365 }
1366
1367 /* Trim ex to end of line. */
1368 xx = window_copy_find_length(wp, ey);
1369 if (ex > xx)
1370 ex = xx;
1371
1372 /*
1373 * Deal with rectangle-copy if necessary; four situations: start of
1374 * first line (firstsx), end of last line (lastex), start (restsx) and
1375 * end (restex) of all other lines.
1376 */
1377 xx = screen_size_x(s);
1378
1379 /*
1380 * Behave according to mode-keys. If it is emacs, copy like emacs,
1381 * keeping the top-left-most character, and dropping the
1382 * bottom-right-most, regardless of copy direction. If it is vi, also
1383 * keep bottom-right-most character.
1384 */
1385 keys = options_get_number(&wp->window->options, "mode-keys");
1386 if (data->rectflag) {
1387 /*
1388 * Need to ignore the column with the cursor in it, which for
1389 * rectangular copy means knowing which side the cursor is on.
1390 */
1391 if (data->selx < data->cx) {
1392 /* Selection start is on the left. */
1393 if (keys == MODEKEY_EMACS) {
1394 lastex = data->cx;
1395 restex = data->cx;
1396 }
1397 else {
1398 lastex = data->cx + 1;
1399 restex = data->cx + 1;
1400 }
1401 firstsx = data->selx;
1402 restsx = data->selx;
1403 } else {
1404 /* Cursor is on the left. */
1405 lastex = data->selx + 1;
1406 restex = data->selx + 1;
1407 firstsx = data->cx;
1408 restsx = data->cx;
1409 }
1410 } else {
1411 if (keys == MODEKEY_EMACS)
1412 lastex = ex;
1413 else
1414 lastex = ex + 1;
1415 restex = xx;
1416 firstsx = sx;
1417 restsx = 0;
1418 }
1419
1420 /* Copy the lines. */
1421 if (sy == ey)
1422 window_copy_copy_line(wp, &buf, &off, sy, firstsx, lastex);
1423 else {
1424 window_copy_copy_line(wp, &buf, &off, sy, firstsx, restex);
1425 if (ey - sy > 1) {
1426 for (i = sy + 1; i < ey; i++) {
1427 window_copy_copy_line(
1428 wp, &buf, &off, i, restsx, restex);
1429 }
1430 }
1431 window_copy_copy_line(wp, &buf, &off, ey, restsx, lastex);
1432 }
1433
1434 /* Don't bother if no data. */
1435 if (off == 0) {
1436 free(buf);
1437 return (NULL);
1438 }
1439 *len = off - 1; /* remove final \n */
1440 return (buf);
1441 }
1442
1443 void
1444 window_copy_copy_buffer(struct window_pane *wp, int idx, void *buf, size_t len)
1445 {
1446 u_int limit;
1447 struct screen_write_ctx ctx;
1448
1449 if (options_get_number(&global_options, "set-clipboard")) {
1450 screen_write_start(&ctx, wp, NULL);
1451 screen_write_setselection(&ctx, buf, len);
1452 screen_write_stop(&ctx);
1453 }
1454
1455 if (idx == -1) {
1456 limit = options_get_number(&global_options, "buffer-limit");
1457 paste_add(&global_buffers, buf, len, limit);
1458 } else if (paste_replace(&global_buffers, idx, buf, len) != 0)
1459 free(buf);
1460 }
1461
1462 void
1463 window_copy_copy_pipe(
1464 struct window_pane *wp, struct session *sess, int idx, const char *arg)
1465 {
1466 void *buf;
1467 size_t len;
1468 struct job *job;
1469
1470
1471 buf = window_copy_get_selection(wp, &len);
1472 if (buf == NULL)
1473 return;
1474
1475 job = job_run(arg, sess, NULL, NULL, NULL);
1476 bufferevent_write(job->event, buf, len);
1477
1478 window_copy_copy_buffer(wp, idx, buf, len);
1479 }
1480
1481 void
1482 window_copy_copy_selection(struct window_pane *wp, int idx)
1483 {
1484 void* buf;
1485 size_t len;
1486
1487 buf = window_copy_get_selection(wp, &len);
1488 if (buf == NULL)
1489 return;
1490
1491 window_copy_copy_buffer(wp, idx, buf, len);
1492 }
1493
1494 void
1495 window_copy_copy_line(struct window_pane *wp,
1496 char **buf, size_t *off, u_int sy, u_int sx, u_int ex)
1497 {
1498 struct window_copy_mode_data *data = wp->modedata;
1499 struct grid *gd = data->backing->grid;
1500 const struct grid_cell *gc;
1501 struct grid_line *gl;
1502 struct utf8_data ud;
1503 u_int i, xx, wrapped = 0;
1504
1505 if (sx > ex)
1506 return;
1507
1508 /*
1509 * Work out if the line was wrapped at the screen edge and all of it is
1510 * on screen.
1511 */
1512 gl = &gd->linedata[sy];
1513 if (gl->flags & GRID_LINE_WRAPPED && gl->cellsize <= gd->sx)
1514 wrapped = 1;
1515
1516 /* If the line was wrapped, don't strip spaces (use the full length). */
1517 if (wrapped)
1518 xx = gl->cellsize;
1519 else
1520 xx = window_copy_find_length(wp, sy);
1521 if (ex > xx)
1522 ex = xx;
1523 if (sx > xx)
1524 sx = xx;
1525
1526 if (sx < ex) {
1527 for (i = sx; i < ex; i++) {
1528 gc = grid_peek_cell(gd, i, sy);
1529 if (gc->flags & GRID_FLAG_PADDING)
1530 continue;
1531 grid_cell_get(gc, &ud);
1532
1533 *buf = xrealloc(*buf, 1, (*off) + ud.size);
1534 memcpy(*buf + *off, ud.data, ud.size);
1535 *off += ud.size;
1536 }
1537 }
1538
1539 /* Only add a newline if the line wasn't wrapped. */
1540 if (!wrapped || ex != xx) {
1541 *buf = xrealloc(*buf, 1, (*off) + 1);
1542 (*buf)[(*off)++] = '\n';
1543 }
1544 }
1545
1546 void
1547 window_copy_clear_selection(struct window_pane *wp)
1548 {
1549 struct window_copy_mode_data *data = wp->modedata;
1550 u_int px, py;
1551
1552 screen_clear_selection(&data->screen);
1553
1554 py = screen_hsize(data->backing) + data->cy - data->oy;
1555 px = window_copy_find_length(wp, py);
1556 if (data->cx > px)
1557 window_copy_update_cursor(wp, px, data->cy);
1558 }
1559
1560 int
1561 window_copy_in_set(struct window_pane *wp, u_int px, u_int py, const char *set)
1562 {
1563 struct window_copy_mode_data *data = wp->modedata;
1564 const struct grid_cell *gc;
1565 struct utf8_data ud;
1566
1567 gc = grid_peek_cell(data->backing->grid, px, py);
1568 grid_cell_get(gc, &ud);
1569 if (ud.size != 1 || gc->flags & GRID_FLAG_PADDING)
1570 return (0);
1571 if (*ud.data == 0x00 || *ud.data == 0x7f)
1572 return (0);
1573 return (strchr(set, *ud.data) != NULL);
1574 }
1575
1576 u_int
1577 window_copy_find_length(struct window_pane *wp, u_int py)
1578 {
1579 struct window_copy_mode_data *data = wp->modedata;
1580 struct screen *s = data->backing;
1581 const struct grid_cell *gc;
1582 struct utf8_data ud;
1583 u_int px;
1584
1585 /*
1586 * If the pane has been resized, its grid can contain old overlong
1587 * lines. grid_peek_cell does not allow accessing cells beyond the
1588 * width of the grid, and screen_write_copy treats them as spaces, so
1589 * ignore them here too.
1590 */
1591 px = s->grid->linedata[py].cellsize;
1592 if (px > screen_size_x(s))
1593 px = screen_size_x(s);
1594 while (px > 0) {
1595 gc = grid_peek_cell(s->grid, px - 1, py);
1596 grid_cell_get(gc, &ud);
1597 if (ud.size != 1 || *ud.data != ' ')
1598 break;
1599 px--;
1600 }
1601 return (px);
1602 }
1603
1604 void
1605 window_copy_cursor_start_of_line(struct window_pane *wp)
1606 {
1607 struct window_copy_mode_data *data = wp->modedata;
1608 struct screen *back_s = data->backing;
1609 struct grid *gd = back_s->grid;
1610 u_int py;
1611
1612 if (data->cx == 0) {
1613 py = screen_hsize(back_s) + data->cy - data->oy;
1614 while (py > 0 && gd->linedata[py-1].flags & GRID_LINE_WRAPPED) {
1615 window_copy_cursor_up(wp, 0);
1616 py = screen_hsize(back_s) + data->cy - data->oy;
1617 }
1618 }
1619 window_copy_update_cursor(wp, 0, data->cy);
1620 if (window_copy_update_selection(wp, 1))
1621 window_copy_redraw_lines(wp, data->cy, 1);
1622 }
1623
1624 void
1625 window_copy_cursor_back_to_indentation(struct window_pane *wp)
1626 {
1627 struct window_copy_mode_data *data = wp->modedata;
1628 u_int px, py, xx;
1629 const struct grid_cell *gc;
1630 struct utf8_data ud;
1631
1632 px = 0;
1633 py = screen_hsize(data->backing) + data->cy - data->oy;
1634 xx = window_copy_find_length(wp, py);
1635
1636 while (px < xx) {
1637 gc = grid_peek_cell(data->backing->grid, px, py);
1638 grid_cell_get(gc, &ud);
1639 if (ud.size != 1 || *ud.data != ' ')
1640 break;
1641 px++;
1642 }
1643
1644 window_copy_update_cursor(wp, px, data->cy);
1645 if (window_copy_update_selection(wp, 1))
1646 window_copy_redraw_lines(wp, data->cy, 1);
1647 }
1648
1649 void
1650 window_copy_cursor_end_of_line(struct window_pane *wp)
1651 {
1652 struct window_copy_mode_data *data = wp->modedata;
1653 struct screen *back_s = data->backing;
1654 struct grid *gd = back_s->grid;
1655 u_int px, py;
1656
1657 py = screen_hsize(back_s) + data->cy - data->oy;
1658 px = window_copy_find_length(wp, py);
1659
1660 if (data->cx == px) {
1661 if (data->screen.sel.flag && data->rectflag)
1662 px = screen_size_x(back_s);
1663 if (gd->linedata[py].flags & GRID_LINE_WRAPPED) {
1664 while (py < gd->sy + gd->hsize &&
1665 gd->linedata[py].flags & GRID_LINE_WRAPPED) {
1666 window_copy_cursor_down(wp, 0);
1667 py = screen_hsize(back_s)
1668 + data->cy - data->oy;
1669 }
1670 px = window_copy_find_length(wp, py);
1671 }
1672 }
1673 window_copy_update_cursor(wp, px, data->cy);
1674
1675 if (window_copy_update_selection(wp, 1))
1676 window_copy_redraw_lines(wp, data->cy, 1);
1677 }
1678
1679 void
1680 window_copy_other_end(struct window_pane *wp)
1681 {
1682 struct window_copy_mode_data *data = wp->modedata;
1683 struct screen *s = &data->screen;
1684 u_int selx, sely, cx, cy, yy;
1685
1686 if (!s->sel.flag)
1687 return;
1688
1689 selx = data->selx;
1690 sely = data->sely;
1691 cx = data->cx;
1692 cy = data->cy;
1693 yy = screen_hsize(data->backing) + data->cy - data->oy;
1694
1695 data->selx = cx;
1696 data->sely = yy;
1697 data->cx = selx;
1698
1699 if (sely < screen_hsize(data->backing) - data->oy) {
1700 data->oy = screen_hsize(data->backing) - sely;
1701 data->cy = 0;
1702 } else if (sely > screen_hsize(data->backing) - data->oy + screen_size_y(s)) {
1703 data->oy = screen_hsize(data->backing) - sely + screen_size_y(s) - 1;
1704 data->cy = screen_size_y(s) - 1;
1705
1706 } else
1707 data->cy = cy + sely - yy;
1708
1709 window_copy_redraw_screen(wp);
1710 }
1711
1712 void
1713 window_copy_cursor_left(struct window_pane *wp)
1714 {
1715 struct window_copy_mode_data *data = wp->modedata;
1716
1717 if (data->cx == 0) {
1718 window_copy_cursor_up(wp, 0);
1719 window_copy_cursor_end_of_line(wp);
1720 } else {
1721 window_copy_update_cursor(wp, data->cx - 1, data->cy);
1722 if (window_copy_update_selection(wp, 1))
1723 window_copy_redraw_lines(wp, data->cy, 1);
1724 }
1725 }
1726
1727 void
1728 window_copy_cursor_right(struct window_pane *wp)
1729 {
1730 struct window_copy_mode_data *data = wp->modedata;
1731 u_int px, py;
1732
1733 if (data->screen.sel.flag && data->rectflag)
1734 px = screen_size_x(&data->screen);
1735 else {
1736 py = screen_hsize(data->backing) + data->cy - data->oy;
1737 px = window_copy_find_length(wp, py);
1738 }
1739
1740 if (data->cx >= px) {
1741 window_copy_cursor_start_of_line(wp);
1742 window_copy_cursor_down(wp, 0);
1743 } else {
1744 window_copy_update_cursor(wp, data->cx + 1, data->cy);
1745 if (window_copy_update_selection(wp, 1))
1746 window_copy_redraw_lines(wp, data->cy, 1);
1747 }
1748 }
1749
1750 void
1751 window_copy_cursor_up(struct window_pane *wp, int scroll_only)
1752 {
1753 struct window_copy_mode_data *data = wp->modedata;
1754 struct screen *s = &data->screen;
1755 u_int ox, oy, px, py;
1756
1757 oy = screen_hsize(data->backing) + data->cy - data->oy;
1758 ox = window_copy_find_length(wp, oy);
1759 if (data->cx != ox) {
1760 data->lastcx = data->cx;
1761 data->lastsx = ox;
1762 }
1763
1764 data->cx = data->lastcx;
1765 if (scroll_only || data->cy == 0) {
1766 window_copy_scroll_down(wp, 1);
1767 if (scroll_only) {
1768 if (data->cy == screen_size_y(s) - 1)
1769 window_copy_redraw_lines(wp, data->cy, 1);
1770 else
1771 window_copy_redraw_lines(wp, data->cy, 2);
1772 }
1773 } else {
1774 window_copy_update_cursor(wp, data->cx, data->cy - 1);
1775 if (window_copy_update_selection(wp, 1)) {
1776 if (data->cy == screen_size_y(s) - 1)
1777 window_copy_redraw_lines(wp, data->cy, 1);
1778 else
1779 window_copy_redraw_lines(wp, data->cy, 2);
1780 }
1781 }
1782
1783 if (!data->screen.sel.flag || !data->rectflag) {
1784 py = screen_hsize(data->backing) + data->cy - data->oy;
1785 px = window_copy_find_length(wp, py);
1786 if ((data->cx >= data->lastsx && data->cx != px) ||
1787 data->cx > px)
1788 window_copy_cursor_end_of_line(wp);
1789 }
1790 }
1791
1792 void
1793 window_copy_cursor_down(struct window_pane *wp, int scroll_only)
1794 {
1795 struct window_copy_mode_data *data = wp->modedata;
1796 struct screen *s = &data->screen;
1797 u_int ox, oy, px, py;
1798
1799 oy = screen_hsize(data->backing) + data->cy - data->oy;
1800 ox = window_copy_find_length(wp, oy);
1801 if (data->cx != ox) {
1802 data->lastcx = data->cx;
1803 data->lastsx = ox;
1804 }
1805
1806 data->cx = data->lastcx;
1807 if (scroll_only || data->cy == screen_size_y(s) - 1) {
1808 window_copy_scroll_up(wp, 1);
1809 if (scroll_only && data->cy > 0)
1810 window_copy_redraw_lines(wp, data->cy - 1, 2);
1811 } else {
1812 window_copy_update_cursor(wp, data->cx, data->cy + 1);
1813 if (window_copy_update_selection(wp, 1))
1814 window_copy_redraw_lines(wp, data->cy - 1, 2);
1815 }
1816
1817 if (!data->screen.sel.flag || !data->rectflag) {
1818 py = screen_hsize(data->backing) + data->cy - data->oy;
1819 px = window_copy_find_length(wp, py);
1820 if ((data->cx >= data->lastsx && data->cx != px) ||
1821 data->cx > px)
1822 window_copy_cursor_end_of_line(wp);
1823 }
1824 }
1825
1826 void
1827 window_copy_cursor_jump(struct window_pane *wp)
1828 {
1829 struct window_copy_mode_data *data = wp->modedata;
1830 struct screen *back_s = data->backing;
1831 const struct grid_cell *gc;
1832 struct utf8_data ud;
1833 u_int px, py, xx;
1834
1835 px = data->cx + 1;
1836 py = screen_hsize(back_s) + data->cy - data->oy;
1837 xx = window_copy_find_length(wp, py);
1838
1839 while (px < xx) {
1840 gc = grid_peek_cell(back_s->grid, px, py);
1841 grid_cell_get(gc, &ud);
1842 if (!(gc->flags & GRID_FLAG_PADDING) &&
1843 ud.size == 1 && *ud.data == data->jumpchar) {
1844 window_copy_update_cursor(wp, px, data->cy);
1845 if (window_copy_update_selection(wp, 1))
1846 window_copy_redraw_lines(wp, data->cy, 1);
1847 return;
1848 }
1849 px++;
1850 }
1851 }
1852
1853 void
1854 window_copy_cursor_jump_back(struct window_pane *wp)
1855 {
1856 struct window_copy_mode_data *data = wp->modedata;
1857 struct screen *back_s = data->backing;
1858 const struct grid_cell *gc;
1859 struct utf8_data ud;
1860 u_int px, py;
1861
1862 px = data->cx;
1863 py = screen_hsize(back_s) + data->cy - data->oy;
1864
1865 if (px > 0)
1866 px--;
1867
1868 for (;;) {
1869 gc = grid_peek_cell(back_s->grid, px, py);
1870 grid_cell_get(gc, &ud);
1871 if (!(gc->flags & GRID_FLAG_PADDING) &&
1872 ud.size == 1 && *ud.data == data->jumpchar) {
1873 window_copy_update_cursor(wp, px, data->cy);
1874 if (window_copy_update_selection(wp, 1))
1875 window_copy_redraw_lines(wp, data->cy, 1);
1876 return;
1877 }
1878 if (px == 0)
1879 break;
1880 px--;
1881 }
1882 }
1883
1884 void
1885 window_copy_cursor_jump_to(struct window_pane *wp)
1886 {
1887 struct window_copy_mode_data *data = wp->modedata;
1888 struct screen *back_s = data->backing;
1889 const struct grid_cell *gc;
1890 struct utf8_data ud;
1891 u_int px, py, xx;
1892
1893 px = data->cx + 1;
1894 py = screen_hsize(back_s) + data->cy - data->oy;
1895 xx = window_copy_find_length(wp, py);
1896
1897 while (px < xx) {
1898 gc = grid_peek_cell(back_s->grid, px, py);
1899 grid_cell_get(gc, &ud);
1900 if (!(gc->flags & GRID_FLAG_PADDING) &&
1901 ud.size == 1 && *ud.data == data->jumpchar) {
1902 window_copy_update_cursor(wp, px - 1, data->cy);
1903 if (window_copy_update_selection(wp, 1))
1904 window_copy_redraw_lines(wp, data->cy, 1);
1905 return;
1906 }
1907 px++;
1908 }
1909 }
1910
1911 void
1912 window_copy_cursor_jump_to_back(struct window_pane *wp)
1913 {
1914 struct window_copy_mode_data *data = wp->modedata;
1915 struct screen *back_s = data->backing;
1916 const struct grid_cell *gc;
1917 struct utf8_data ud;
1918 u_int px, py;
1919
1920 px = data->cx;
1921 py = screen_hsize(back_s) + data->cy - data->oy;
1922
1923 if (px > 0)
1924 px--;
1925
1926 for (;;) {
1927 gc = grid_peek_cell(back_s->grid, px, py);
1928 grid_cell_get(gc, &ud);
1929 if (!(gc->flags & GRID_FLAG_PADDING) &&
1930 ud.size == 1 && *ud.data == data->jumpchar) {
1931 window_copy_update_cursor(wp, px + 1, data->cy);
1932 if (window_copy_update_selection(wp, 1))
1933 window_copy_redraw_lines(wp, data->cy, 1);
1934 return;
1935 }
1936 if (px == 0)
1937 break;
1938 px--;
1939 }
1940 }
1941
1942 void
1943 window_copy_cursor_next_word(struct window_pane *wp, const char *separators)
1944 {
1945 struct window_copy_mode_data *data = wp->modedata;
1946 struct screen *back_s = data->backing;
1947 u_int px, py, xx, yy;
1948 int expected = 0;
1949
1950 px = data->cx;
1951 py = screen_hsize(back_s) + data->cy - data->oy;
1952 xx = window_copy_find_length(wp, py);
1953 yy = screen_hsize(back_s) + screen_size_y(back_s) - 1;
1954
1955 /*
1956 * First skip past any nonword characters and then any word characters.
1957 *
1958 * expected is initially set to 0 for the former and then 1 for the
1959 * latter.
1960 */
1961 do {
1962 while (px > xx ||
1963 window_copy_in_set(wp, px, py, separators) == expected) {
1964 /* Move down if we're past the end of the line. */
1965 if (px > xx) {
1966 if (py == yy)
1967 return;
1968 window_copy_cursor_down(wp, 0);
1969 px = 0;
1970
1971 py = screen_hsize(back_s) + data->cy - data->oy;
1972 xx = window_copy_find_length(wp, py);
1973 } else
1974 px++;
1975 }
1976 expected = !expected;
1977 } while (expected == 1);
1978
1979 window_copy_update_cursor(wp, px, data->cy);
1980 if (window_copy_update_selection(wp, 1))
1981 window_copy_redraw_lines(wp, data->cy, 1);
1982 }
1983
1984 void
1985 window_copy_cursor_next_word_end(struct window_pane *wp, const char *separators)
1986 {
1987 struct window_copy_mode_data *data = wp->modedata;
1988 struct options *oo = &wp->window->options;
1989 struct screen *back_s = data->backing;
1990 u_int px, py, xx, yy;
1991 int keys, expected = 1;
1992
1993 px = data->cx;
1994 py = screen_hsize(back_s) + data->cy - data->oy;
1995 xx = window_copy_find_length(wp, py);
1996 yy = screen_hsize(back_s) + screen_size_y(back_s) - 1;
1997
1998 keys = options_get_number(oo, "mode-keys");
1999 if (keys == MODEKEY_VI && !window_copy_in_set(wp, px, py, separators))
2000 px++;
2001
2002 /*
2003 * First skip past any word characters, then any nonword characters.
2004 *
2005 * expected is initially set to 1 for the former and then 0 for the
2006 * latter.
2007 */
2008 do {
2009 while (px > xx ||
2010 window_copy_in_set(wp, px, py, separators) == expected) {
2011 /* Move down if we're past the end of the line. */
2012 if (px > xx) {
2013 if (py == yy)
2014 return;
2015 window_copy_cursor_down(wp, 0);
2016 px = 0;
2017
2018 py = screen_hsize(back_s) + data->cy - data->oy;
2019 xx = window_copy_find_length(wp, py);
2020 } else
2021 px++;
2022 }
2023 expected = !expected;
2024 } while (expected == 0);
2025
2026 if (keys == MODEKEY_VI && px != 0)
2027 px--;
2028
2029 window_copy_update_cursor(wp, px, data->cy);
2030 if (window_copy_update_selection(wp, 1))
2031 window_copy_redraw_lines(wp, data->cy, 1);
2032 }
2033
2034 /* Move to the previous place where a word begins. */
2035 void
2036 window_copy_cursor_previous_word(struct window_pane *wp, const char *separators)
2037 {
2038 struct window_copy_mode_data *data = wp->modedata;
2039 u_int px, py;
2040
2041 px = data->cx;
2042 py = screen_hsize(data->backing) + data->cy - data->oy;
2043
2044 /* Move back to the previous word character. */
2045 for (;;) {
2046 if (px > 0) {
2047 px--;
2048 if (!window_copy_in_set(wp, px, py, separators))
2049 break;
2050 } else {
2051 if (data->cy == 0 &&
2052 (screen_hsize(data->backing) == 0 ||
2053 data->oy >= screen_hsize(data->backing) - 1))
2054 goto out;
2055 window_copy_cursor_up(wp, 0);
2056
2057 py = screen_hsize(data->backing) + data->cy - data->oy;
2058 px = window_copy_find_length(wp, py);
2059 }
2060 }
2061
2062 /* Move back to the beginning of this word. */
2063 while (px > 0 && !window_copy_in_set(wp, px - 1, py, separators))
2064 px--;
2065
2066 out:
2067 window_copy_update_cursor(wp, px, data->cy);
2068 if (window_copy_update_selection(wp, 1))
2069 window_copy_redraw_lines(wp, data->cy, 1);
2070 }
2071
2072 void
2073 window_copy_scroll_up(struct window_pane *wp, u_int ny)
2074 {
2075 struct window_copy_mode_data *data = wp->modedata;
2076 struct screen *s = &data->screen;
2077 struct screen_write_ctx ctx;
2078
2079 if (data->oy < ny)
2080 ny = data->oy;
2081 if (ny == 0)
2082 return;
2083 data->oy -= ny;
2084
2085 window_copy_update_selection(wp, 0);
2086
2087 screen_write_start(&ctx, wp, NULL);
2088 screen_write_cursormove(&ctx, 0, 0);
2089 screen_write_deleteline(&ctx, ny);
2090 window_copy_write_lines(wp, &ctx, screen_size_y(s) - ny, ny);
2091 window_copy_write_line(wp, &ctx, 0);
2092 if (screen_size_y(s) > 1)
2093 window_copy_write_line(wp, &ctx, 1);
2094 if (screen_size_y(s) > 3)
2095 window_copy_write_line(wp, &ctx, screen_size_y(s) - 2);
2096 if (s->sel.flag && screen_size_y(s) > ny)
2097 window_copy_write_line(wp, &ctx, screen_size_y(s) - ny - 1);
2098 screen_write_cursormove(&ctx, data->cx, data->cy);
2099 screen_write_stop(&ctx);
2100 }
2101
2102 void
2103 window_copy_scroll_down(struct window_pane *wp, u_int ny)
2104 {
2105 struct window_copy_mode_data *data = wp->modedata;
2106 struct screen *s = &data->screen;
2107 struct screen_write_ctx ctx;
2108
2109 if (ny > screen_hsize(data->backing))
2110 return;
2111
2112 if (data->oy > screen_hsize(data->backing) - ny)
2113 ny = screen_hsize(data->backing) - data->oy;
2114 if (ny == 0)
2115 return;
2116 data->oy += ny;
2117
2118 window_copy_update_selection(wp, 0);
2119
2120 screen_write_start(&ctx, wp, NULL);
2121 screen_write_cursormove(&ctx, 0, 0);
2122 screen_write_insertline(&ctx, ny);
2123 window_copy_write_lines(wp, &ctx, 0, ny);
2124 if (s->sel.flag && screen_size_y(s) > ny)
2125 window_copy_write_line(wp, &ctx, ny);
2126 else if (ny == 1) /* nuke position */
2127 window_copy_write_line(wp, &ctx, 1);
2128 screen_write_cursormove(&ctx, data->cx, data->cy);
2129 screen_write_stop(&ctx);
2130 }
2131
2132 void
2133 window_copy_rectangle_toggle(struct window_pane *wp)
2134 {
2135 struct window_copy_mode_data *data = wp->modedata;
2136 u_int px, py;
2137
2138 data->rectflag = !data->rectflag;
2139
2140 py = screen_hsize(data->backing) + data->cy - data->oy;
2141 px = window_copy_find_length(wp, py);
2142 if (data->cx > px)
2143 window_copy_update_cursor(wp, px, data->cy);
2144
2145 window_copy_update_selection(wp, 1);
2146 window_copy_redraw_screen(wp);
2147 }
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