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Update man page for update-environment.
[tmux-openbsd.git] / window-copy.c
blobb66eb74ff1012cc78c3c23927cd13493054b71b7
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_copy_selection(struct window_pane *, struct session *);
56 void window_copy_clear_selection(struct window_pane *);
57 void window_copy_copy_line(
58 struct window_pane *, char **, size_t *, u_int, u_int, u_int);
59 int window_copy_in_set(struct window_pane *, u_int, u_int, const char *);
60 u_int window_copy_find_length(struct window_pane *, u_int);
61 void window_copy_cursor_start_of_line(struct window_pane *);
62 void window_copy_cursor_back_to_indentation(struct window_pane *);
63 void window_copy_cursor_end_of_line(struct window_pane *);
64 void window_copy_cursor_left(struct window_pane *);
65 void window_copy_cursor_right(struct window_pane *);
66 void window_copy_cursor_up(struct window_pane *, int);
67 void window_copy_cursor_down(struct window_pane *, int);
68 void window_copy_cursor_jump(struct window_pane *);
69 void window_copy_cursor_jump_back(struct window_pane *);
70 void window_copy_cursor_next_word(struct window_pane *, const char *);
71 void window_copy_cursor_next_word_end(struct window_pane *, const char *);
72 void window_copy_cursor_previous_word(struct window_pane *, const char *);
73 void window_copy_scroll_up(struct window_pane *, u_int);
74 void window_copy_scroll_down(struct window_pane *, u_int);
75 void window_copy_rectangle_toggle(struct window_pane *);
76
77 const struct window_mode window_copy_mode = {
78 window_copy_init,
79 window_copy_free,
80 window_copy_resize,
81 window_copy_key,
82 window_copy_mouse,
83 NULL,
84 };
85
86 enum window_copy_input_type {
87 WINDOW_COPY_OFF,
88 WINDOW_COPY_NUMERICPREFIX,
89 WINDOW_COPY_SEARCHUP,
90 WINDOW_COPY_SEARCHDOWN,
91 WINDOW_COPY_JUMPFORWARD,
92 WINDOW_COPY_JUMPBACK,
93 WINDOW_COPY_GOTOLINE,
94 };
95
96 /*
97 * Copy-mode's visible screen (the "screen" field) is filled from one of
98 * two sources: the original contents of the pane (used when we
99 * actually enter via the "copy-mode" command, to copy the contents of
100 * the current pane), or else a series of lines containing the output
101 * from an output-writing tmux command (such as any of the "show-*" or
102 * "list-*" commands).
103 *
104 * In either case, the full content of the copy-mode grid is pointed at
105 * by the "backing" field, and is copied into "screen" as needed (that
106 * is, when scrolling occurs). When copy-mode is backed by a pane,
107 * backing points directly at that pane's screen structure (&wp->base);
108 * when backed by a list of output-lines from a command, it points at
109 * a newly-allocated screen structure (which is deallocated when the
110 * mode ends).
111 */
112 struct window_copy_mode_data {
113 struct screen screen;
114
115 struct screen *backing;
116 int backing_written; /* backing display has started */
117
118 struct mode_key_data mdata;
119
120 u_int oy;
121
122 u_int selx;
123 u_int sely;
124
125 u_int rectflag; /* are we in rectangle copy mode? */
126
127 u_int cx;
128 u_int cy;
129
130 u_int lastcx; /* position in last line with content */
131 u_int lastsx; /* size of last line with content */
132
133 enum window_copy_input_type inputtype;
134 const char *inputprompt;
135 char *inputstr;
136
137 u_int numprefix;
138
139 enum window_copy_input_type searchtype;
140 char *searchstr;
141
142 enum window_copy_input_type jumptype;
143 char jumpchar;
144 };
145
146 struct screen *
147 window_copy_init(struct window_pane *wp)
148 {
149 struct window_copy_mode_data *data;
150 struct screen *s;
151 int keys;
152
153 wp->modedata = data = xmalloc(sizeof *data);
154 data->oy = 0;
155 data->cx = 0;
156 data->cy = 0;
157
158 data->lastcx = 0;
159 data->lastsx = 0;
160
161 data->backing_written = 0;
162
163 data->rectflag = 0;
164
165 data->inputtype = WINDOW_COPY_OFF;
166 data->inputprompt = NULL;
167 data->inputstr = xstrdup("");
168 data->numprefix = 0;
169
170 data->searchtype = WINDOW_COPY_OFF;
171 data->searchstr = NULL;
172
173 wp->flags |= PANE_FREEZE;
174 if (wp->fd != -1)
175 bufferevent_disable(wp->event, EV_READ|EV_WRITE);
176
177 data->jumptype = WINDOW_COPY_OFF;
178 data->jumpchar = '\0';
179
180 s = &data->screen;
181 screen_init(s, screen_size_x(&wp->base), screen_size_y(&wp->base), 0);
182 if (options_get_number(&wp->window->options, "mode-mouse"))
183 s->mode |= MODE_MOUSE;
184
185 keys = options_get_number(&wp->window->options, "mode-keys");
186 if (keys == MODEKEY_EMACS)
187 mode_key_init(&data->mdata, &mode_key_tree_emacs_copy);
188 else
189 mode_key_init(&data->mdata, &mode_key_tree_vi_copy);
190
191 data->backing = NULL;
192
193 return (s);
194 }
195
196 void
197 window_copy_init_from_pane(struct window_pane *wp)
198 {
199 struct window_copy_mode_data *data = wp->modedata;
200 struct screen *s = &data->screen;
201 struct screen_write_ctx ctx;
202 u_int i;
203
204 if (wp->mode != &window_copy_mode)
205 fatalx("not in copy mode");
206
207 data->backing = &wp->base;
208 data->cx = data->backing->cx;
209 data->cy = data->backing->cy;
210
211 s->cx = data->cx;
212 s->cy = data->cy;
213
214 screen_write_start(&ctx, NULL, s);
215 for (i = 0; i < screen_size_y(s); i++)
216 window_copy_write_line(wp, &ctx, i);
217 screen_write_cursormove(&ctx, data->cx, data->cy);
218 screen_write_stop(&ctx);
219 }
220
221 void
222 window_copy_init_for_output(struct window_pane *wp)
223 {
224 struct window_copy_mode_data *data = wp->modedata;
225
226 data->backing = xmalloc(sizeof *data->backing);
227 screen_init(data->backing, screen_size_x(&wp->base),
228 screen_size_y(&wp->base), UINT_MAX);
229 data->backing->mode &= ~MODE_WRAP;
230 }
231
232 void
233 window_copy_free(struct window_pane *wp)
234 {
235 struct window_copy_mode_data *data = wp->modedata;
236
237 wp->flags &= ~PANE_FREEZE;
238 if (wp->fd != -1)
239 bufferevent_enable(wp->event, EV_READ|EV_WRITE);
240
241 if (data->searchstr != NULL)
242 xfree(data->searchstr);
243 xfree(data->inputstr);
244
245 if (data->backing != &wp->base) {
246 screen_free(data->backing);
247 xfree(data->backing);
248 }
249 screen_free(&data->screen);
250
251 xfree(data);
252 }
253
254 void
255 window_copy_add(struct window_pane *wp, const char *fmt, ...)
256 {
257 va_list ap;
258
259 va_start(ap, fmt);
260 window_copy_vadd(wp, fmt, ap);
261 va_end(ap);
262 }
263
264 void
265 window_copy_vadd(struct window_pane *wp, const char *fmt, va_list ap)
266 {
267 struct window_copy_mode_data *data = wp->modedata;
268 struct screen *backing = data->backing;
269 struct screen_write_ctx back_ctx, ctx;
270 struct grid_cell gc;
271 int utf8flag;
272 u_int old_hsize;
273
274 if (backing == &wp->base)
275 return;
276
277 utf8flag = options_get_number(&wp->window->options, "utf8");
278 memcpy(&gc, &grid_default_cell, sizeof gc);
279
280 old_hsize = screen_hsize(data->backing);
281 screen_write_start(&back_ctx, NULL, backing);
282 if (data->backing_written) {
283 /*
284 * On the second or later line, do a CRLF before writing
285 * (so it's on a new line).
286 */
287 screen_write_carriagereturn(&back_ctx);
288 screen_write_linefeed(&back_ctx, 0);
289 } else
290 data->backing_written = 1;
291 screen_write_vnputs(&back_ctx, 0, &gc, utf8flag, fmt, ap);
292 screen_write_stop(&back_ctx);
293
294 data->oy += screen_hsize(data->backing) - old_hsize;
295
296 screen_write_start(&ctx, wp, &data->screen);
297
298 /*
299 * If the history has changed, draw the top line.
300 * (If there's any history at all, it has changed.)
301 */
302 if (screen_hsize(data->backing))
303 window_copy_redraw_lines(wp, 0, 1);
304
305 /* Write the line, if it's visible. */
306 if (backing->cy + data->oy < screen_size_y(backing))
307 window_copy_redraw_lines(wp, backing->cy, 1);
308
309 screen_write_stop(&ctx);
310 }
311
312 void
313 window_copy_pageup(struct window_pane *wp)
314 {
315 struct window_copy_mode_data *data = wp->modedata;
316 struct screen *s = &data->screen;
317 u_int n;
318
319 n = 1;
320 if (screen_size_y(s) > 2)
321 n = screen_size_y(s) - 2;
322 if (data->oy + n > screen_hsize(data->backing))
323 data->oy = screen_hsize(data->backing);
324 else
325 data->oy += n;
326 window_copy_update_selection(wp);
327 window_copy_redraw_screen(wp);
328 }
329
330 void
331 window_copy_resize(struct window_pane *wp, u_int sx, u_int sy)
332 {
333 struct window_copy_mode_data *data = wp->modedata;
334 struct screen *s = &data->screen;
335 struct screen_write_ctx ctx;
336
337 screen_resize(s, sx, sy);
338 if (data->backing != &wp->base)
339 screen_resize(data->backing, sx, sy);
340
341 if (data->cy > sy - 1)
342 data->cy = sy - 1;
343 if (data->cx > sx)
344 data->cx = sx;
345 if (data->oy > screen_hsize(data->backing))
346 data->oy = screen_hsize(data->backing);
347
348 window_copy_clear_selection(wp);
349
350 screen_write_start(&ctx, NULL, s);
351 window_copy_write_lines(wp, &ctx, 0, screen_size_y(s) - 1);
352 screen_write_stop(&ctx);
353
354 window_copy_redraw_screen(wp);
355 }
356
357 void
358 window_copy_key(struct window_pane *wp, struct session *sess, int key)
359 {
360 const char *word_separators;
361 struct window_copy_mode_data *data = wp->modedata;
362 struct screen *s = &data->screen;
363 u_int n, np;
364 int keys;
365 enum mode_key_cmd cmd;
366
367 np = data->numprefix;
368 if (np == 0)
369 np = 1;
370
371 if (data->inputtype == WINDOW_COPY_JUMPFORWARD
372 || data->inputtype == WINDOW_COPY_JUMPBACK) {
373 /* Ignore keys with modifiers. */
374 if ((key & KEYC_MASK_MOD) == 0) {
375 data->jumpchar = key;
376 if (data->inputtype == WINDOW_COPY_JUMPFORWARD) {
377 for (; np != 0; np--)
378 window_copy_cursor_jump(wp);
379 } else {
380 for (; np != 0; np--)
381 window_copy_cursor_jump_back(wp);
382 }
383 }
384 data->jumptype = data->inputtype;
385 data->inputtype = WINDOW_COPY_OFF;
386 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
387 return;
388 } if (data->inputtype == WINDOW_COPY_NUMERICPREFIX) {
389 if (window_copy_key_numeric_prefix(wp, key) == 0)
390 return;
391 data->inputtype = WINDOW_COPY_OFF;
392 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
393 } else if (data->inputtype != WINDOW_COPY_OFF) {
394 if (window_copy_key_input(wp, key) != 0)
395 goto input_off;
396 return;
397 }
398
399 cmd = mode_key_lookup(&data->mdata, key);
400 switch (cmd) {
401 case MODEKEYCOPY_CANCEL:
402 window_pane_reset_mode(wp);
403 return;
404 case MODEKEYCOPY_LEFT:
405 for (; np != 0; np--)
406 window_copy_cursor_left(wp);
407 break;
408 case MODEKEYCOPY_RIGHT:
409 for (; np != 0; np--)
410 window_copy_cursor_right(wp);
411 break;
412 case MODEKEYCOPY_UP:
413 for (; np != 0; np--)
414 window_copy_cursor_up(wp, 0);
415 break;
416 case MODEKEYCOPY_DOWN:
417 for (; np != 0; np--)
418 window_copy_cursor_down(wp, 0);
419 break;
420 case MODEKEYCOPY_SCROLLUP:
421 for (; np != 0; np--)
422 window_copy_cursor_up(wp, 1);
423 break;
424 case MODEKEYCOPY_SCROLLDOWN:
425 for (; np != 0; np--)
426 window_copy_cursor_down(wp, 1);
427 break;
428 case MODEKEYCOPY_PREVIOUSPAGE:
429 for (; np != 0; np--)
430 window_copy_pageup(wp);
431 break;
432 case MODEKEYCOPY_NEXTPAGE:
433 n = 1;
434 if (screen_size_y(s) > 2)
435 n = screen_size_y(s) - 2;
436 for (; np != 0; np--) {
437 if (data->oy < n)
438 data->oy = 0;
439 else
440 data->oy -= n;
441 }
442 window_copy_update_selection(wp);
443 window_copy_redraw_screen(wp);
444 break;
445 case MODEKEYCOPY_HALFPAGEUP:
446 n = screen_size_y(s) / 2;
447 for (; np != 0; np--) {
448 if (data->oy + n > screen_hsize(data->backing))
449 data->oy = screen_hsize(data->backing);
450 else
451 data->oy += n;
452 }
453 window_copy_update_selection(wp);
454 window_copy_redraw_screen(wp);
455 break;
456 case MODEKEYCOPY_HALFPAGEDOWN:
457 n = screen_size_y(s) / 2;
458 for (; np != 0; np--) {
459 if (data->oy < n)
460 data->oy = 0;
461 else
462 data->oy -= n;
463 }
464 window_copy_update_selection(wp);
465 window_copy_redraw_screen(wp);
466 break;
467 case MODEKEYCOPY_TOPLINE:
468 data->cx = 0;
469 data->cy = 0;
470 window_copy_update_selection(wp);
471 window_copy_redraw_screen(wp);
472 break;
473 case MODEKEYCOPY_MIDDLELINE:
474 data->cx = 0;
475 data->cy = (screen_size_y(s) - 1) / 2;
476 window_copy_update_selection(wp);
477 window_copy_redraw_screen(wp);
478 break;
479 case MODEKEYCOPY_BOTTOMLINE:
480 data->cx = 0;
481 data->cy = screen_size_y(s) - 1;
482 window_copy_update_selection(wp);
483 window_copy_redraw_screen(wp);
484 break;
485 case MODEKEYCOPY_HISTORYTOP:
486 data->cx = 0;
487 data->cy = 0;
488 data->oy = screen_hsize(data->backing);
489 window_copy_update_selection(wp);
490 window_copy_redraw_screen(wp);
491 break;
492 case MODEKEYCOPY_HISTORYBOTTOM:
493 data->cx = 0;
494 data->cy = screen_size_y(s) - 1;
495 data->oy = 0;
496 window_copy_update_selection(wp);
497 window_copy_redraw_screen(wp);
498 break;
499 case MODEKEYCOPY_STARTSELECTION:
500 window_copy_start_selection(wp);
501 window_copy_redraw_screen(wp);
502 break;
503 case MODEKEYCOPY_CLEARSELECTION:
504 window_copy_clear_selection(wp);
505 window_copy_redraw_screen(wp);
506 break;
507 case MODEKEYCOPY_COPYSELECTION:
508 if (sess != NULL) {
509 window_copy_copy_selection(wp, sess);
510 window_pane_reset_mode(wp);
511 return;
512 }
513 break;
514 case MODEKEYCOPY_STARTOFLINE:
515 window_copy_cursor_start_of_line(wp);
516 break;
517 case MODEKEYCOPY_BACKTOINDENTATION:
518 window_copy_cursor_back_to_indentation(wp);
519 break;
520 case MODEKEYCOPY_ENDOFLINE:
521 window_copy_cursor_end_of_line(wp);
522 break;
523 case MODEKEYCOPY_NEXTSPACE:
524 for (; np != 0; np--)
525 window_copy_cursor_next_word(wp, " ");
526 break;
527 case MODEKEYCOPY_NEXTSPACEEND:
528 for (; np != 0; np--)
529 window_copy_cursor_next_word_end(wp, " ");
530 break;
531 case MODEKEYCOPY_NEXTWORD:
532 word_separators =
533 options_get_string(&wp->window->options, "word-separators");
534 for (; np != 0; np--)
535 window_copy_cursor_next_word(wp, word_separators);
536 break;
537 case MODEKEYCOPY_NEXTWORDEND:
538 word_separators =
539 options_get_string(&wp->window->options, "word-separators");
540 for (; np != 0; np--)
541 window_copy_cursor_next_word_end(wp, word_separators);
542 break;
543 case MODEKEYCOPY_PREVIOUSSPACE:
544 for (; np != 0; np--)
545 window_copy_cursor_previous_word(wp, " ");
546 break;
547 case MODEKEYCOPY_PREVIOUSWORD:
548 word_separators =
549 options_get_string(&wp->window->options, "word-separators");
550 for (; np != 0; np--)
551 window_copy_cursor_previous_word(wp, word_separators);
552 break;
553 case MODEKEYCOPY_JUMP:
554 data->inputtype = WINDOW_COPY_JUMPFORWARD;
555 data->inputprompt = "Jump Forward";
556 *data->inputstr = '\0';
557 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
558 return; /* skip numprefix reset */
559 case MODEKEYCOPY_JUMPAGAIN:
560 if (data->jumptype == WINDOW_COPY_JUMPFORWARD) {
561 for (; np != 0; np--)
562 window_copy_cursor_jump(wp);
563 } else if (data->jumptype == WINDOW_COPY_JUMPBACK) {
564 for (; np != 0; np--)
565 window_copy_cursor_jump_back(wp);
566 }
567 break;
568 case MODEKEYCOPY_JUMPREVERSE:
569 if (data->jumptype == WINDOW_COPY_JUMPFORWARD) {
570 for (; np != 0; np--)
571 window_copy_cursor_jump_back(wp);
572 } else if (data->jumptype == WINDOW_COPY_JUMPBACK) {
573 for (; np != 0; np--)
574 window_copy_cursor_jump(wp);
575 }
576 break;
577 case MODEKEYCOPY_JUMPBACK:
578 data->inputtype = WINDOW_COPY_JUMPBACK;
579 data->inputprompt = "Jump Back";
580 *data->inputstr = '\0';
581 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
582 return; /* skip numprefix reset */
583 case MODEKEYCOPY_SEARCHUP:
584 data->inputtype = WINDOW_COPY_SEARCHUP;
585 data->inputprompt = "Search Up";
586 goto input_on;
587 case MODEKEYCOPY_SEARCHDOWN:
588 data->inputtype = WINDOW_COPY_SEARCHDOWN;
589 data->inputprompt = "Search Down";
590 goto input_on;
591 case MODEKEYCOPY_SEARCHAGAIN:
592 case MODEKEYCOPY_SEARCHREVERSE:
593 switch (data->searchtype) {
594 case WINDOW_COPY_OFF:
595 case WINDOW_COPY_GOTOLINE:
596 case WINDOW_COPY_JUMPFORWARD:
597 case WINDOW_COPY_JUMPBACK:
598 case WINDOW_COPY_NUMERICPREFIX:
599 break;
600 case WINDOW_COPY_SEARCHUP:
601 if (cmd == MODEKEYCOPY_SEARCHAGAIN) {
602 for (; np != 0; np--) {
603 window_copy_search_up(
604 wp, data->searchstr);
605 }
606 } else {
607 for (; np != 0; np--) {
608 window_copy_search_down(
609 wp, data->searchstr);
610 }
611 }
612 break;
613 case WINDOW_COPY_SEARCHDOWN:
614 if (cmd == MODEKEYCOPY_SEARCHAGAIN) {
615 for (; np != 0; np--) {
616 window_copy_search_down(
617 wp, data->searchstr);
618 }
619 } else {
620 for (; np != 0; np--) {
621 window_copy_search_up(
622 wp, data->searchstr);
623 }
624 }
625 break;
626 }
627 break;
628 case MODEKEYCOPY_GOTOLINE:
629 data->inputtype = WINDOW_COPY_GOTOLINE;
630 data->inputprompt = "Goto Line";
631 *data->inputstr = '\0';
632 goto input_on;
633 case MODEKEYCOPY_STARTNUMBERPREFIX:
634 key &= KEYC_MASK_KEY;
635 if (key >= '0' && key <= '9') {
636 data->inputtype = WINDOW_COPY_NUMERICPREFIX;
637 data->numprefix = 0;
638 window_copy_key_numeric_prefix(wp, key);
639 return;
640 }
641 break;
642 case MODEKEYCOPY_RECTANGLETOGGLE:
643 window_copy_rectangle_toggle(wp);
644 break;
645 default:
646 break;
647 }
648
649 data->numprefix = 0;
650 return;
651
652 input_on:
653 keys = options_get_number(&wp->window->options, "mode-keys");
654 if (keys == MODEKEY_EMACS)
655 mode_key_init(&data->mdata, &mode_key_tree_emacs_edit);
656 else
657 mode_key_init(&data->mdata, &mode_key_tree_vi_edit);
658
659 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
660 return;
661
662 input_off:
663 keys = options_get_number(&wp->window->options, "mode-keys");
664 if (keys == MODEKEY_EMACS)
665 mode_key_init(&data->mdata, &mode_key_tree_emacs_copy);
666 else
667 mode_key_init(&data->mdata, &mode_key_tree_vi_copy);
668
669 data->inputtype = WINDOW_COPY_OFF;
670 data->inputprompt = NULL;
671
672 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
673 }
674
675 int
676 window_copy_key_input(struct window_pane *wp, int key)
677 {
678 struct window_copy_mode_data *data = wp->modedata;
679 struct screen *s = &data->screen;
680 size_t inputlen;
681 u_int np;
682
683 switch (mode_key_lookup(&data->mdata, key)) {
684 case MODEKEYEDIT_CANCEL:
685 data->numprefix = 0;
686 return (-1);
687 case MODEKEYEDIT_BACKSPACE:
688 inputlen = strlen(data->inputstr);
689 if (inputlen > 0)
690 data->inputstr[inputlen - 1] = '\0';
691 break;
692 case MODEKEYEDIT_DELETELINE:
693 *data->inputstr = '\0';
694 break;
695 case MODEKEYEDIT_ENTER:
696 np = data->numprefix;
697 if (np == 0)
698 np = 1;
699
700 switch (data->inputtype) {
701 case WINDOW_COPY_OFF:
702 case WINDOW_COPY_JUMPFORWARD:
703 case WINDOW_COPY_JUMPBACK:
704 case WINDOW_COPY_NUMERICPREFIX:
705 break;
706 case WINDOW_COPY_SEARCHUP:
707 for (; np != 0; np--)
708 window_copy_search_up(wp, data->inputstr);
709 data->searchtype = data->inputtype;
710 data->searchstr = xstrdup(data->inputstr);
711 break;
712 case WINDOW_COPY_SEARCHDOWN:
713 for (; np != 0; np--)
714 window_copy_search_down(wp, data->inputstr);
715 data->searchtype = data->inputtype;
716 data->searchstr = xstrdup(data->inputstr);
717 break;
718 case WINDOW_COPY_GOTOLINE:
719 window_copy_goto_line(wp, data->inputstr);
720 *data->inputstr = '\0';
721 break;
722 }
723 data->numprefix = 0;
724 return (1);
725 case MODEKEY_OTHER:
726 if (key < 32 || key > 126)
727 break;
728 inputlen = strlen(data->inputstr) + 2;
729
730 data->inputstr = xrealloc(data->inputstr, 1, inputlen);
731 data->inputstr[inputlen - 2] = key;
732 data->inputstr[inputlen - 1] = '\0';
733 break;
734 default:
735 break;
736 }
737
738 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
739 return (0);
740 }
741
742 int
743 window_copy_key_numeric_prefix(struct window_pane *wp, int key)
744 {
745 struct window_copy_mode_data *data = wp->modedata;
746 struct screen *s = &data->screen;
747
748 key &= KEYC_MASK_KEY;
749 if (key < '0' || key > '9')
750 return 1;
751
752 if (data->numprefix >= 100) /* no more than three digits */
753 return 0;
754 data->numprefix = data->numprefix * 10 + key - '0';
755
756 window_copy_redraw_lines(wp, screen_size_y(s) - 1, 1);
757 return 0;
758 }
759
760 /* ARGSUSED */
761 void
762 window_copy_mouse(
763 struct window_pane *wp, unused struct session *sess, struct mouse_event *m)
764 {
765 struct window_copy_mode_data *data = wp->modedata;
766 struct screen *s = &data->screen;
767 u_int i;
768
769 if (m->x >= screen_size_x(s))
770 return;
771 if (m->y >= screen_size_y(s))
772 return;
773
774 /* If mouse wheel (buttons 4 and 5), scroll. */
775 if ((m->b & MOUSE_45)) {
776 if ((m->b & MOUSE_BUTTON) == MOUSE_1) {
777 for (i = 0; i < 5; i++)
778 window_copy_cursor_up(wp, 0);
779 } else if ((m->b & MOUSE_BUTTON) == MOUSE_2) {
780 for (i = 0; i < 5; i++)
781 window_copy_cursor_down(wp, 0);
782 }
783 return;
784 }
785
786 /*
787 * If already reading motion, move the cursor while buttons are still
788 * pressed, or stop the selection on their release.
789 */
790 if (s->mode & MODE_MOUSEMOTION) {
791 if ((m->b & MOUSE_BUTTON) != MOUSE_UP) {
792 window_copy_update_cursor(wp, m->x, m->y);
793 if (window_copy_update_selection(wp))
794 window_copy_redraw_screen(wp);
795 } else {
796 s->mode &= ~MODE_MOUSEMOTION;
797 if (sess != NULL) {
798 window_copy_copy_selection(wp, sess);
799 window_pane_reset_mode(wp);
800 }
801 }
802 return;
803 }
804
805 /* Otherwise i other buttons pressed, start selection and motion. */
806 if ((m->b & MOUSE_BUTTON) != MOUSE_UP) {
807 s->mode |= MODE_MOUSEMOTION;
808
809 window_copy_update_cursor(wp, m->x, m->y);
810 window_copy_start_selection(wp);
811 window_copy_redraw_screen(wp);
812 }
813 }
814
815 void
816 window_copy_scroll_to(struct window_pane *wp, u_int px, u_int py)
817 {
818 struct window_copy_mode_data *data = wp->modedata;
819 struct grid *gd = data->backing->grid;
820 u_int offset, gap;
821
822 data->cx = px;
823
824 gap = gd->sy / 4;
825 if (py < gd->sy) {
826 offset = 0;
827 data->cy = py;
828 } else if (py > gd->hsize + gd->sy - gap) {
829 offset = gd->hsize;
830 data->cy = py - gd->hsize;
831 } else {
832 offset = py + gap - gd->sy;
833 data->cy = py - offset;
834 }
835 data->oy = gd->hsize - offset;
836
837 window_copy_update_selection(wp);
838 window_copy_redraw_screen(wp);
839 }
840
841 int
842 window_copy_search_compare(
843 struct grid *gd, u_int px, u_int py, struct grid *sgd, u_int spx)
844 {
845 const struct grid_cell *gc, *sgc;
846 const struct grid_utf8 *gu, *sgu;
847
848 gc = grid_peek_cell(gd, px, py);
849 sgc = grid_peek_cell(sgd, spx, 0);
850
851 if ((gc->flags & GRID_FLAG_UTF8) != (sgc->flags & GRID_FLAG_UTF8))
852 return (0);
853
854 if (gc->flags & GRID_FLAG_UTF8) {
855 gu = grid_peek_utf8(gd, px, py);
856 sgu = grid_peek_utf8(sgd, spx, 0);
857 if (grid_utf8_compare(gu, sgu))
858 return (1);
859 } else {
860 if (gc->data == sgc->data)
861 return (1);
862 }
863 return (0);
864 }
865
866 int
867 window_copy_search_lr(struct grid *gd,
868 struct grid *sgd, u_int *ppx, u_int py, u_int first, u_int last)
869 {
870 u_int ax, bx, px;
871
872 for (ax = first; ax < last; ax++) {
873 if (ax + sgd->sx >= gd->sx)
874 break;
875 for (bx = 0; bx < sgd->sx; bx++) {
876 px = ax + bx;
877 if (!window_copy_search_compare(gd, px, py, sgd, bx))
878 break;
879 }
880 if (bx == sgd->sx) {
881 *ppx = ax;
882 return (1);
883 }
884 }
885 return (0);
886 }
887
888 int
889 window_copy_search_rl(struct grid *gd,
890 struct grid *sgd, u_int *ppx, u_int py, u_int first, u_int last)
891 {
892 u_int ax, bx, px;
893
894 for (ax = last + 1; ax > first; ax--) {
895 if (gd->sx - (ax - 1) < sgd->sx)
896 continue;
897 for (bx = 0; bx < sgd->sx; bx++) {
898 px = ax - 1 + bx;
899 if (!window_copy_search_compare(gd, px, py, sgd, bx))
900 break;
901 }
902 if (bx == sgd->sx) {
903 *ppx = ax - 1;
904 return (1);
905 }
906 }
907 return (0);
908 }
909
910 void
911 window_copy_search_up(struct window_pane *wp, const char *searchstr)
912 {
913 struct window_copy_mode_data *data = wp->modedata;
914 struct screen *s = data->backing, ss;
915 struct screen_write_ctx ctx;
916 struct grid *gd = s->grid, *sgd;
917 struct grid_cell gc;
918 size_t searchlen;
919 u_int i, last, fx, fy, px;
920 int utf8flag, n, wrapped;
921
922 if (*searchstr == '\0')
923 return;
924 utf8flag = options_get_number(&wp->window->options, "utf8");
925 searchlen = screen_write_strlen(utf8flag, "%s", searchstr);
926
927 screen_init(&ss, searchlen, 1, 0);
928 screen_write_start(&ctx, NULL, &ss);
929 memcpy(&gc, &grid_default_cell, sizeof gc);
930 screen_write_nputs(&ctx, -1, &gc, utf8flag, "%s", searchstr);
931 screen_write_stop(&ctx);
932
933 fx = data->cx;
934 fy = gd->hsize - data->oy + data->cy;
935
936 if (fx == 0) {
937 if (fy == 0)
938 return;
939 fx = gd->sx - 1;
940 fy--;
941 } else
942 fx--;
943 n = wrapped = 0;
944
945 retry:
946 sgd = ss.grid;
947 for (i = fy + 1; i > 0; i--) {
948 last = screen_size_x(s);
949 if (i == fy + 1)
950 last = fx;
951 n = window_copy_search_rl(gd, sgd, &px, i - 1, 0, last);
952 if (n) {
953 window_copy_scroll_to(wp, px, i - 1);
954 break;
955 }
956 }
957 if (!n && !wrapped) {
958 fx = gd->sx - 1;
959 fy = gd->hsize + gd->sy - 1;
960 wrapped = 1;
961 goto retry;
962 }
963
964 screen_free(&ss);
965 }
966
967 void
968 window_copy_search_down(struct window_pane *wp, const char *searchstr)
969 {
970 struct window_copy_mode_data *data = wp->modedata;
971 struct screen *s = data->backing, ss;
972 struct screen_write_ctx ctx;
973 struct grid *gd = s->grid, *sgd;
974 struct grid_cell gc;
975 size_t searchlen;
976 u_int i, first, fx, fy, px;
977 int utf8flag, n, wrapped;
978
979 if (*searchstr == '\0')
980 return;
981 utf8flag = options_get_number(&wp->window->options, "utf8");
982 searchlen = screen_write_strlen(utf8flag, "%s", searchstr);
983
984 screen_init(&ss, searchlen, 1, 0);
985 screen_write_start(&ctx, NULL, &ss);
986 memcpy(&gc, &grid_default_cell, sizeof gc);
987 screen_write_nputs(&ctx, -1, &gc, utf8flag, "%s", searchstr);
988 screen_write_stop(&ctx);
989
990 fx = data->cx;
991 fy = gd->hsize - data->oy + data->cy;
992
993 if (fx == gd->sx - 1) {
994 if (fy == gd->hsize + gd->sy)
995 return;
996 fx = 0;
997 fy++;
998 } else
999 fx++;
1000 n = wrapped = 0;
1001
1002 retry:
1003 sgd = ss.grid;
1004 for (i = fy + 1; i < gd->hsize + gd->sy; i++) {
1005 first = 0;
1006 if (i == fy + 1)
1007 first = fx;
1008 n = window_copy_search_lr(gd, sgd, &px, i - 1, first, gd->sx);
1009 if (n) {
1010 window_copy_scroll_to(wp, px, i - 1);
1011 break;
1012 }
1013 }
1014 if (!n && !wrapped) {
1015 fx = 0;
1016 fy = 0;
1017 wrapped = 1;
1018 goto retry;
1019 }
1020
1021 screen_free(&ss);
1022 }
1023
1024 void
1025 window_copy_goto_line(struct window_pane *wp, const char *linestr)
1026 {
1027 struct window_copy_mode_data *data = wp->modedata;
1028 const char *errstr;
1029 u_int lineno;
1030
1031 lineno = strtonum(linestr, 0, screen_hsize(data->backing), &errstr);
1032 if (errstr != NULL)
1033 return;
1034
1035 data->oy = lineno;
1036 window_copy_update_selection(wp);
1037 window_copy_redraw_screen(wp);
1038 }
1039
1040 void
1041 window_copy_write_line(
1042 struct window_pane *wp, struct screen_write_ctx *ctx, u_int py)
1043 {
1044 struct window_copy_mode_data *data = wp->modedata;
1045 struct screen *s = &data->screen;
1046 struct options *oo = &wp->window->options;
1047 struct grid_cell gc;
1048 char hdr[32];
1049 size_t last, xoff = 0, size = 0;
1050
1051 memcpy(&gc, &grid_default_cell, sizeof gc);
1052 colour_set_fg(&gc, options_get_number(oo, "mode-fg"));
1053 colour_set_bg(&gc, options_get_number(oo, "mode-bg"));
1054 gc.attr |= options_get_number(oo, "mode-attr");
1055
1056 last = screen_size_y(s) - 1;
1057 if (py == 0) {
1058 size = xsnprintf(hdr, sizeof hdr,
1059 "[%u/%u]", data->oy, screen_hsize(data->backing));
1060 if (size > screen_size_x(s))
1061 size = screen_size_x(s);
1062 screen_write_cursormove(ctx, screen_size_x(s) - size, 0);
1063 screen_write_puts(ctx, &gc, "%s", hdr);
1064 } else if (py == last && data->inputtype != WINDOW_COPY_OFF) {
1065 if (data->inputtype == WINDOW_COPY_NUMERICPREFIX) {
1066 xoff = size = xsnprintf(hdr, sizeof hdr,
1067 "Repeat: %u", data->numprefix);
1068 } else {
1069 xoff = size = xsnprintf(hdr, sizeof hdr,
1070 "%s: %s", data->inputprompt, data->inputstr);
1071 }
1072 screen_write_cursormove(ctx, 0, last);
1073 screen_write_puts(ctx, &gc, "%s", hdr);
1074 } else
1075 size = 0;
1076
1077 screen_write_cursormove(ctx, xoff, py);
1078 screen_write_copy(ctx, data->backing, xoff,
1079 (screen_hsize(data->backing) - data->oy) + py,
1080 screen_size_x(s) - size, 1);
1081
1082 if (py == data->cy && data->cx == screen_size_x(s)) {
1083 memcpy(&gc, &grid_default_cell, sizeof gc);
1084 screen_write_cursormove(ctx, screen_size_x(s) - 1, py);
1085 screen_write_putc(ctx, &gc, '$');
1086 }
1087 }
1088
1089 void
1090 window_copy_write_lines(
1091 struct window_pane *wp, struct screen_write_ctx *ctx, u_int py, u_int ny)
1092 {
1093 u_int yy;
1094
1095 for (yy = py; yy < py + ny; yy++)
1096 window_copy_write_line(wp, ctx, py);
1097 }
1098
1099 void
1100 window_copy_redraw_lines(struct window_pane *wp, u_int py, u_int ny)
1101 {
1102 struct window_copy_mode_data *data = wp->modedata;
1103 struct screen_write_ctx ctx;
1104 u_int i;
1105
1106 screen_write_start(&ctx, wp, NULL);
1107 for (i = py; i < py + ny; i++)
1108 window_copy_write_line(wp, &ctx, i);
1109 screen_write_cursormove(&ctx, data->cx, data->cy);
1110 screen_write_stop(&ctx);
1111 }
1112
1113 void
1114 window_copy_redraw_screen(struct window_pane *wp)
1115 {
1116 struct window_copy_mode_data *data = wp->modedata;
1117
1118 window_copy_redraw_lines(wp, 0, screen_size_y(&data->screen));
1119 }
1120
1121 void
1122 window_copy_update_cursor(struct window_pane *wp, u_int cx, u_int cy)
1123 {
1124 struct window_copy_mode_data *data = wp->modedata;
1125 struct screen *s = &data->screen;
1126 struct screen_write_ctx ctx;
1127 u_int old_cx, old_cy;
1128
1129 old_cx = data->cx; old_cy = data->cy;
1130 data->cx = cx; data->cy = cy;
1131 if (old_cx == screen_size_x(s))
1132 window_copy_redraw_lines(wp, old_cy, 1);
1133 if (data->cx == screen_size_x(s))
1134 window_copy_redraw_lines(wp, data->cy, 1);
1135 else {
1136 screen_write_start(&ctx, wp, NULL);
1137 screen_write_cursormove(&ctx, data->cx, data->cy);
1138 screen_write_stop(&ctx);
1139 }
1140 }
1141
1142 void
1143 window_copy_start_selection(struct window_pane *wp)
1144 {
1145 struct window_copy_mode_data *data = wp->modedata;
1146 struct screen *s = &data->screen;
1147
1148 data->selx = data->cx;
1149 data->sely = screen_hsize(data->backing) + data->cy - data->oy;
1150
1151 s->sel.flag = 1;
1152 window_copy_update_selection(wp);
1153 }
1154
1155 int
1156 window_copy_update_selection(struct window_pane *wp)
1157 {
1158 struct window_copy_mode_data *data = wp->modedata;
1159 struct screen *s = &data->screen;
1160 struct options *oo = &wp->window->options;
1161 struct grid_cell gc;
1162 u_int sx, sy, ty, cy;
1163
1164 if (!s->sel.flag)
1165 return (0);
1166
1167 /* Set colours. */
1168 memcpy(&gc, &grid_default_cell, sizeof gc);
1169 colour_set_fg(&gc, options_get_number(oo, "mode-fg"));
1170 colour_set_bg(&gc, options_get_number(oo, "mode-bg"));
1171 gc.attr |= options_get_number(oo, "mode-attr");
1172
1173 /* Find top of screen. */
1174 ty = screen_hsize(data->backing) - data->oy;
1175
1176 /* Adjust the selection. */
1177 sx = data->selx;
1178 sy = data->sely;
1179 if (sy < ty) { /* above screen */
1180 if (!data->rectflag)
1181 sx = 0;
1182 sy = 0;
1183 } else if (sy > ty + screen_size_y(s) - 1) { /* below screen */
1184 if (!data->rectflag)
1185 sx = screen_size_x(s) - 1;
1186 sy = screen_size_y(s) - 1;
1187 } else
1188 sy -= ty;
1189 sy = screen_hsize(s) + sy;
1190
1191 screen_set_selection(s,
1192 sx, sy, data->cx, screen_hsize(s) + data->cy, data->rectflag, &gc);
1193
1194 if (data->rectflag) {
1195 /*
1196 * Can't rely on the caller to redraw the right lines for
1197 * rectangle selection - find the highest line and the number
1198 * of lines, and redraw just past that in both directions
1199 */
1200 cy = data->cy;
1201 if (sy < cy)
1202 window_copy_redraw_lines(wp, sy, cy - sy + 1);
1203 else
1204 window_copy_redraw_lines(wp, cy, sy - cy + 1);
1205 }
1206
1207 return (1);
1208 }
1209
1210 void
1211 window_copy_copy_selection(struct window_pane *wp, struct session *sess)
1212 {
1213 struct window_copy_mode_data *data = wp->modedata;
1214 struct screen *s = &data->screen;
1215 char *buf;
1216 size_t off;
1217 u_int i, xx, yy, sx, sy, ex, ey, limit;
1218 u_int firstsx, lastex, restex, restsx;
1219
1220 if (!s->sel.flag)
1221 return;
1222
1223 buf = xmalloc(1);
1224 off = 0;
1225
1226 *buf = '\0';
1227
1228 /*
1229 * The selection extends from selx,sely to (adjusted) cx,cy on
1230 * the base screen.
1231 */
1232
1233 /* Find start and end. */
1234 xx = data->cx;
1235 yy = screen_hsize(data->backing) + data->cy - data->oy;
1236 if (yy < data->sely || (yy == data->sely && xx < data->selx)) {
1237 sx = xx; sy = yy;
1238 ex = data->selx; ey = data->sely;
1239 } else {
1240 sx = data->selx; sy = data->sely;
1241 ex = xx; ey = yy;
1242 }
1243
1244 /* Trim ex to end of line. */
1245 xx = window_copy_find_length(wp, ey);
1246 if (ex > xx)
1247 ex = xx;
1248
1249 /*
1250 * Deal with rectangle-copy if necessary; four situations: start of
1251 * first line (firstsx), end of last line (lastex), start (restsx) and
1252 * end (restex) of all other lines.
1253 */
1254 xx = screen_size_x(s);
1255 if (data->rectflag) {
1256 /*
1257 * Need to ignore the column with the cursor in it, which for
1258 * rectangular copy means knowing which side the cursor is on.
1259 */
1260 if (data->selx < data->cx) {
1261 /* Selection start is on the left. */
1262 lastex = data->cx;
1263 restex = data->cx;
1264 firstsx = data->selx;
1265 restsx = data->selx;
1266 } else {
1267 /* Cursor is on the left. */
1268 lastex = data->selx + 1;
1269 restex = data->selx + 1;
1270 firstsx = data->cx + 1;
1271 restsx = data->cx + 1;
1272 }
1273 } else {
1274 /*
1275 * Like emacs, keep the top-left-most character, and drop the
1276 * bottom-right-most, regardless of copy direction.
1277 */
1278 lastex = ex;
1279 restex = xx;
1280 firstsx = sx;
1281 restsx = 0;
1282 }
1283
1284 /* Copy the lines. */
1285 if (sy == ey)
1286 window_copy_copy_line(wp, &buf, &off, sy, firstsx, lastex);
1287 else {
1288 window_copy_copy_line(wp, &buf, &off, sy, firstsx, restex);
1289 if (ey - sy > 1) {
1290 for (i = sy + 1; i < ey; i++) {
1291 window_copy_copy_line(
1292 wp, &buf, &off, i, restsx, restex);
1293 }
1294 }
1295 window_copy_copy_line(wp, &buf, &off, ey, restsx, lastex);
1296 }
1297
1298 /* Don't bother if no data. */
1299 if (off == 0) {
1300 xfree(buf);
1301 return;
1302 }
1303 off--; /* remove final \n */
1304
1305 /* Add the buffer to the stack. */
1306 limit = options_get_number(&sess->options, "buffer-limit");
1307 paste_add(&sess->buffers, buf, off, limit);
1308 }
1309
1310 void
1311 window_copy_copy_line(struct window_pane *wp,
1312 char **buf, size_t *off, u_int sy, u_int sx, u_int ex)
1313 {
1314 struct window_copy_mode_data *data = wp->modedata;
1315 struct grid *gd = data->backing->grid;
1316 const struct grid_cell *gc;
1317 const struct grid_utf8 *gu;
1318 struct grid_line *gl;
1319 u_int i, xx, wrapped = 0;
1320 size_t size;
1321
1322 if (sx > ex)
1323 return;
1324
1325 /*
1326 * Work out if the line was wrapped at the screen edge and all of it is
1327 * on screen.
1328 */
1329 gl = &gd->linedata[sy];
1330 if (gl->flags & GRID_LINE_WRAPPED && gl->cellsize <= gd->sx)
1331 wrapped = 1;
1332
1333 /* If the line was wrapped, don't strip spaces (use the full length). */
1334 if (wrapped)
1335 xx = gl->cellsize;
1336 else
1337 xx = window_copy_find_length(wp, sy);
1338 if (ex > xx)
1339 ex = xx;
1340 if (sx > xx)
1341 sx = xx;
1342
1343 if (sx < ex) {
1344 for (i = sx; i < ex; i++) {
1345 gc = grid_peek_cell(gd, i, sy);
1346 if (gc->flags & GRID_FLAG_PADDING)
1347 continue;
1348 if (!(gc->flags & GRID_FLAG_UTF8)) {
1349 *buf = xrealloc(*buf, 1, (*off) + 1);
1350 (*buf)[(*off)++] = gc->data;
1351 } else {
1352 gu = grid_peek_utf8(gd, i, sy);
1353 size = grid_utf8_size(gu);
1354 *buf = xrealloc(*buf, 1, (*off) + size);
1355 *off += grid_utf8_copy(gu, *buf + *off, size);
1356 }
1357 }
1358 }
1359
1360 /* Only add a newline if the line wasn't wrapped. */
1361 if (!wrapped || ex != xx) {
1362 *buf = xrealloc(*buf, 1, (*off) + 1);
1363 (*buf)[(*off)++] = '\n';
1364 }
1365 }
1366
1367 void
1368 window_copy_clear_selection(struct window_pane *wp)
1369 {
1370 struct window_copy_mode_data *data = wp->modedata;
1371 u_int px, py;
1372
1373 screen_clear_selection(&data->screen);
1374
1375 py = screen_hsize(data->backing) + data->cy - data->oy;
1376 px = window_copy_find_length(wp, py);
1377 if (data->cx > px)
1378 window_copy_update_cursor(wp, px, data->cy);
1379 }
1380
1381 int
1382 window_copy_in_set(struct window_pane *wp, u_int px, u_int py, const char *set)
1383 {
1384 struct window_copy_mode_data *data = wp->modedata;
1385 const struct grid_cell *gc;
1386
1387 gc = grid_peek_cell(data->backing->grid, px, py);
1388 if (gc->flags & (GRID_FLAG_PADDING|GRID_FLAG_UTF8))
1389 return (0);
1390 if (gc->data == 0x00 || gc->data == 0x7f)
1391 return (0);
1392 return (strchr(set, gc->data) != NULL);
1393 }
1394
1395 u_int
1396 window_copy_find_length(struct window_pane *wp, u_int py)
1397 {
1398 struct window_copy_mode_data *data = wp->modedata;
1399 struct screen *s = data->backing;
1400 const struct grid_cell *gc;
1401 u_int px;
1402
1403 /*
1404 * If the pane has been resized, its grid can contain old overlong
1405 * lines. grid_peek_cell does not allow accessing cells beyond the
1406 * width of the grid, and screen_write_copy treats them as spaces, so
1407 * ignore them here too.
1408 */
1409 px = s->grid->linedata[py].cellsize;
1410 if (px > screen_size_x(s))
1411 px = screen_size_x(s);
1412 while (px > 0) {
1413 gc = grid_peek_cell(s->grid, px - 1, py);
1414 if (gc->flags & GRID_FLAG_UTF8)
1415 break;
1416 if (gc->data != ' ')
1417 break;
1418 px--;
1419 }
1420 return (px);
1421 }
1422
1423 void
1424 window_copy_cursor_start_of_line(struct window_pane *wp)
1425 {
1426 struct window_copy_mode_data *data = wp->modedata;
1427 struct screen *back_s = data->backing;
1428 struct grid *gd = back_s->grid;
1429 u_int py;
1430
1431 if (data->cx == 0) {
1432 py = screen_hsize(back_s) + data->cy - data->oy;
1433 while (py > 0 && gd->linedata[py-1].flags & GRID_LINE_WRAPPED) {
1434 window_copy_cursor_up(wp, 0);
1435 py = screen_hsize(back_s) + data->cy - data->oy;
1436 }
1437 }
1438 window_copy_update_cursor(wp, 0, data->cy);
1439 if (window_copy_update_selection(wp))
1440 window_copy_redraw_lines(wp, data->cy, 1);
1441 }
1442
1443 void
1444 window_copy_cursor_back_to_indentation(struct window_pane *wp)
1445 {
1446 struct window_copy_mode_data *data = wp->modedata;
1447 u_int px, py, xx;
1448 const struct grid_cell *gc;
1449
1450 px = 0;
1451 py = screen_hsize(data->backing) + data->cy - data->oy;
1452 xx = window_copy_find_length(wp, py);
1453
1454 while (px < xx) {
1455 gc = grid_peek_cell(data->backing->grid, px, py);
1456 if (gc->flags & GRID_FLAG_UTF8)
1457 break;
1458 if (gc->data != ' ')
1459 break;
1460 px++;
1461 }
1462
1463 window_copy_update_cursor(wp, px, data->cy);
1464 if (window_copy_update_selection(wp))
1465 window_copy_redraw_lines(wp, data->cy, 1);
1466 }
1467
1468 void
1469 window_copy_cursor_end_of_line(struct window_pane *wp)
1470 {
1471 struct window_copy_mode_data *data = wp->modedata;
1472 struct screen *back_s = data->backing;
1473 struct grid *gd = back_s->grid;
1474 u_int px, py;
1475
1476 py = screen_hsize(back_s) + data->cy - data->oy;
1477 px = window_copy_find_length(wp, py);
1478
1479 if (data->cx == px) {
1480 if (data->screen.sel.flag && data->rectflag)
1481 px = screen_size_x(back_s);
1482 if (gd->linedata[py].flags & GRID_LINE_WRAPPED) {
1483 while (py < gd->sy + gd->hsize &&
1484 gd->linedata[py].flags & GRID_LINE_WRAPPED) {
1485 window_copy_cursor_down(wp, 0);
1486 py = screen_hsize(back_s)
1487 + data->cy - data->oy;
1488 }
1489 px = window_copy_find_length(wp, py);
1490 }
1491 }
1492 window_copy_update_cursor(wp, px, data->cy);
1493
1494 if (window_copy_update_selection(wp))
1495 window_copy_redraw_lines(wp, data->cy, 1);
1496 }
1497
1498 void
1499 window_copy_cursor_left(struct window_pane *wp)
1500 {
1501 struct window_copy_mode_data *data = wp->modedata;
1502
1503 if (data->cx == 0) {
1504 window_copy_cursor_up(wp, 0);
1505 window_copy_cursor_end_of_line(wp);
1506 } else {
1507 window_copy_update_cursor(wp, data->cx - 1, data->cy);
1508 if (window_copy_update_selection(wp))
1509 window_copy_redraw_lines(wp, data->cy, 1);
1510 }
1511 }
1512
1513 void
1514 window_copy_cursor_right(struct window_pane *wp)
1515 {
1516 struct window_copy_mode_data *data = wp->modedata;
1517 u_int px, py;
1518
1519 if (data->screen.sel.flag && data->rectflag)
1520 px = screen_size_x(&data->screen);
1521 else {
1522 py = screen_hsize(data->backing) + data->cy - data->oy;
1523 px = window_copy_find_length(wp, py);
1524 }
1525
1526 if (data->cx >= px) {
1527 window_copy_cursor_start_of_line(wp);
1528 window_copy_cursor_down(wp, 0);
1529 } else {
1530 window_copy_update_cursor(wp, data->cx + 1, data->cy);
1531 if (window_copy_update_selection(wp))
1532 window_copy_redraw_lines(wp, data->cy, 1);
1533 }
1534 }
1535
1536 void
1537 window_copy_cursor_up(struct window_pane *wp, int scroll_only)
1538 {
1539 struct window_copy_mode_data *data = wp->modedata;
1540 struct screen *s = &data->screen;
1541 u_int ox, oy, px, py;
1542
1543 oy = screen_hsize(data->backing) + data->cy - data->oy;
1544 ox = window_copy_find_length(wp, oy);
1545 if (ox != 0) {
1546 data->lastcx = data->cx;
1547 data->lastsx = ox;
1548 }
1549
1550 data->cx = data->lastcx;
1551 if (scroll_only || data->cy == 0) {
1552 window_copy_scroll_down(wp, 1);
1553 if (scroll_only) {
1554 if (data->cy == screen_size_y(s) - 1)
1555 window_copy_redraw_lines(wp, data->cy, 1);
1556 else
1557 window_copy_redraw_lines(wp, data->cy, 2);
1558 }
1559 } else {
1560 window_copy_update_cursor(wp, data->cx, data->cy - 1);
1561 if (window_copy_update_selection(wp)) {
1562 if (data->cy == screen_size_y(s) - 1)
1563 window_copy_redraw_lines(wp, data->cy, 1);
1564 else
1565 window_copy_redraw_lines(wp, data->cy, 2);
1566 }
1567 }
1568
1569 if (!data->screen.sel.flag || !data->rectflag) {
1570 py = screen_hsize(data->backing) + data->cy - data->oy;
1571 px = window_copy_find_length(wp, py);
1572 if ((data->cx >= data->lastsx && data->cx != px) ||
1573 data->cx > px)
1574 window_copy_cursor_end_of_line(wp);
1575 }
1576 }
1577
1578 void
1579 window_copy_cursor_down(struct window_pane *wp, int scroll_only)
1580 {
1581 struct window_copy_mode_data *data = wp->modedata;
1582 struct screen *s = &data->screen;
1583 u_int ox, oy, px, py;
1584
1585 oy = screen_hsize(data->backing) + data->cy - data->oy;
1586 ox = window_copy_find_length(wp, oy);
1587 if (ox != 0) {
1588 data->lastcx = data->cx;
1589 data->lastsx = ox;
1590 }
1591
1592 data->cx = data->lastcx;
1593 if (scroll_only || data->cy == screen_size_y(s) - 1) {
1594 window_copy_scroll_up(wp, 1);
1595 if (scroll_only && data->cy > 0)
1596 window_copy_redraw_lines(wp, data->cy - 1, 2);
1597 } else {
1598 window_copy_update_cursor(wp, data->cx, data->cy + 1);
1599 if (window_copy_update_selection(wp))
1600 window_copy_redraw_lines(wp, data->cy - 1, 2);
1601 }
1602
1603 if (!data->screen.sel.flag || !data->rectflag) {
1604 py = screen_hsize(data->backing) + data->cy - data->oy;
1605 px = window_copy_find_length(wp, py);
1606 if ((data->cx >= data->lastsx && data->cx != px) ||
1607 data->cx > px)
1608 window_copy_cursor_end_of_line(wp);
1609 }
1610 }
1611
1612 void
1613 window_copy_cursor_jump(struct window_pane *wp)
1614 {
1615 struct window_copy_mode_data *data = wp->modedata;
1616 struct screen *back_s = data->backing;
1617 const struct grid_cell *gc;
1618 uint px, py, xx;
1619
1620 px = data->cx + 1;
1621 py = screen_hsize(back_s) + data->cy - data->oy;
1622 xx = window_copy_find_length(wp, py);
1623
1624 while (px < xx) {
1625 gc = grid_peek_cell(back_s->grid, px, py);
1626 if ((gc->flags & (GRID_FLAG_PADDING|GRID_FLAG_UTF8)) == 0
1627 && gc->data == data->jumpchar) {
1628
1629 window_copy_update_cursor(wp, px, data->cy);
1630 if (window_copy_update_selection(wp))
1631 window_copy_redraw_lines(wp, data->cy, 1);
1632 return;
1633 }
1634 px++;
1635 }
1636 }
1637
1638 void
1639 window_copy_cursor_jump_back(struct window_pane *wp)
1640 {
1641 struct window_copy_mode_data *data = wp->modedata;
1642 struct screen *back_s = data->backing;
1643 const struct grid_cell *gc;
1644 uint px, py;
1645
1646 px = data->cx;
1647 py = screen_hsize(back_s) + data->cy - data->oy;
1648
1649 if (px > 0)
1650 px--;
1651
1652 for (;;) {
1653 gc = grid_peek_cell(back_s->grid, px, py);
1654 if ((gc->flags & (GRID_FLAG_PADDING|GRID_FLAG_UTF8)) == 0
1655 && gc->data == data->jumpchar) {
1656
1657 window_copy_update_cursor(wp, px, data->cy);
1658 if (window_copy_update_selection(wp))
1659 window_copy_redraw_lines(wp, data->cy, 1);
1660 return;
1661 }
1662 if (px == 0)
1663 break;
1664 px--;
1665 }
1666 }
1667
1668 void
1669 window_copy_cursor_next_word(struct window_pane *wp, const char *separators)
1670 {
1671 struct window_copy_mode_data *data = wp->modedata;
1672 struct screen *back_s = data->backing;
1673 u_int px, py, xx, yy;
1674 int expected = 0;
1675
1676 px = data->cx;
1677 py = screen_hsize(back_s) + data->cy - data->oy;
1678 xx = window_copy_find_length(wp, py);
1679 yy = screen_hsize(back_s) + screen_size_y(back_s) - 1;
1680
1681 /*
1682 * First skip past any nonword characters and then any word characters.
1683 *
1684 * expected is initially set to 0 for the former and then 1 for the
1685 * latter.
1686 */
1687 do {
1688 while (px > xx ||
1689 window_copy_in_set(wp, px, py, separators) == expected) {
1690 /* Move down if we're past the end of the line. */
1691 if (px > xx) {
1692 if (py == yy)
1693 return;
1694 window_copy_cursor_down(wp, 0);
1695 px = 0;
1696
1697 py = screen_hsize(back_s) + data->cy - data->oy;
1698 xx = window_copy_find_length(wp, py);
1699 } else
1700 px++;
1701 }
1702 expected = !expected;
1703 } while (expected == 1);
1704
1705 window_copy_update_cursor(wp, px, data->cy);
1706 if (window_copy_update_selection(wp))
1707 window_copy_redraw_lines(wp, data->cy, 1);
1708 }
1709
1710 void
1711 window_copy_cursor_next_word_end(struct window_pane *wp, const char *separators)
1712 {
1713 struct window_copy_mode_data *data = wp->modedata;
1714 struct screen *back_s = data->backing;
1715 u_int px, py, xx, yy;
1716 int expected = 1;
1717
1718 px = data->cx;
1719 py = screen_hsize(back_s) + data->cy - data->oy;
1720 xx = window_copy_find_length(wp, py);
1721 yy = screen_hsize(back_s) + screen_size_y(back_s) - 1;
1722
1723 /*
1724 * First skip past any word characters, then any nonword characters.
1725 *
1726 * expected is initially set to 1 for the former and then 0 for the
1727 * latter.
1728 */
1729 do {
1730 while (px > xx ||
1731 window_copy_in_set(wp, px, py, separators) == expected) {
1732 /* Move down if we're past the end of the line. */
1733 if (px > xx) {
1734 if (py == yy)
1735 return;
1736 window_copy_cursor_down(wp, 0);
1737 px = 0;
1738
1739 py = screen_hsize(back_s) + data->cy - data->oy;
1740 xx = window_copy_find_length(wp, py);
1741 } else
1742 px++;
1743 }
1744 expected = !expected;
1745 } while (expected == 0);
1746
1747 window_copy_update_cursor(wp, px, data->cy);
1748 if (window_copy_update_selection(wp))
1749 window_copy_redraw_lines(wp, data->cy, 1);
1750 }
1751
1752 /* Move to the previous place where a word begins. */
1753 void
1754 window_copy_cursor_previous_word(struct window_pane *wp, const char *separators)
1755 {
1756 struct window_copy_mode_data *data = wp->modedata;
1757 u_int px, py;
1758
1759 px = data->cx;
1760 py = screen_hsize(data->backing) + data->cy - data->oy;
1761
1762 /* Move back to the previous word character. */
1763 for (;;) {
1764 if (px > 0) {
1765 px--;
1766 if (!window_copy_in_set(wp, px, py, separators))
1767 break;
1768 } else {
1769 if (data->cy == 0 &&
1770 (screen_hsize(data->backing) == 0 ||
1771 data->oy >= screen_hsize(data->backing) - 1))
1772 goto out;
1773 window_copy_cursor_up(wp, 0);
1774
1775 py = screen_hsize(data->backing) + data->cy - data->oy;
1776 px = window_copy_find_length(wp, py);
1777 }
1778 }
1779
1780 /* Move back to the beginning of this word. */
1781 while (px > 0 && !window_copy_in_set(wp, px - 1, py, separators))
1782 px--;
1783
1784 out:
1785 window_copy_update_cursor(wp, px, data->cy);
1786 if (window_copy_update_selection(wp))
1787 window_copy_redraw_lines(wp, data->cy, 1);
1788 }
1789
1790 void
1791 window_copy_scroll_up(struct window_pane *wp, u_int ny)
1792 {
1793 struct window_copy_mode_data *data = wp->modedata;
1794 struct screen *s = &data->screen;
1795 struct screen_write_ctx ctx;
1796
1797 if (data->oy < ny)
1798 ny = data->oy;
1799 if (ny == 0)
1800 return;
1801 data->oy -= ny;
1802
1803 screen_write_start(&ctx, wp, NULL);
1804 screen_write_cursormove(&ctx, 0, 0);
1805 screen_write_deleteline(&ctx, ny);
1806 window_copy_write_lines(wp, &ctx, screen_size_y(s) - ny, ny);
1807 window_copy_write_line(wp, &ctx, 0);
1808 if (screen_size_y(s) > 1)
1809 window_copy_write_line(wp, &ctx, 1);
1810 if (screen_size_y(s) > 3)
1811 window_copy_write_line(wp, &ctx, screen_size_y(s) - 2);
1812 if (s->sel.flag && screen_size_y(s) > ny) {
1813 window_copy_update_selection(wp);
1814 window_copy_write_line(wp, &ctx, screen_size_y(s) - ny - 1);
1815 }
1816 screen_write_cursormove(&ctx, data->cx, data->cy);
1817 window_copy_update_selection(wp);
1818 screen_write_stop(&ctx);
1819 }
1820
1821 void
1822 window_copy_scroll_down(struct window_pane *wp, u_int ny)
1823 {
1824 struct window_copy_mode_data *data = wp->modedata;
1825 struct screen *s = &data->screen;
1826 struct screen_write_ctx ctx;
1827
1828 if (ny > screen_hsize(data->backing))
1829 return;
1830
1831 if (data->oy > screen_hsize(data->backing) - ny)
1832 ny = screen_hsize(data->backing) - data->oy;
1833 if (ny == 0)
1834 return;
1835 data->oy += ny;
1836
1837 screen_write_start(&ctx, wp, NULL);
1838 screen_write_cursormove(&ctx, 0, 0);
1839 screen_write_insertline(&ctx, ny);
1840 window_copy_write_lines(wp, &ctx, 0, ny);
1841 if (s->sel.flag && screen_size_y(s) > ny) {
1842 window_copy_update_selection(wp);
1843 window_copy_write_line(wp, &ctx, ny);
1844 } else if (ny == 1) /* nuke position */
1845 window_copy_write_line(wp, &ctx, 1);
1846 screen_write_cursormove(&ctx, data->cx, data->cy);
1847 window_copy_update_selection(wp);
1848 screen_write_stop(&ctx);
1849 }
1850
1851 void
1852 window_copy_rectangle_toggle(struct window_pane *wp)
1853 {
1854 struct window_copy_mode_data *data = wp->modedata;
1855 u_int px, py;
1856
1857 data->rectflag = !data->rectflag;
1858
1859 py = screen_hsize(data->backing) + data->cy - data->oy;
1860 px = window_copy_find_length(wp, py);
1861 if (data->cx > px)
1862 window_copy_update_cursor(wp, px, data->cy);
1863
1864 window_copy_update_selection(wp);
1865 window_copy_redraw_screen(wp);
1866 }