1/* $Id: cmd-capture-pane.c,v 1.1.1.2 2011/08/17 18:40:04 jmmv Exp $ */
2
3/*
4 * Copyright (c) 2009 Jonathan Alvarado <radobobo@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/*
27 * Write the entire contents of a pane to a buffer.
28 */
29
30int	cmd_capture_pane_exec(struct cmd *, struct cmd_ctx *);
31
32const struct cmd_entry cmd_capture_pane_entry = {
33	"capture-pane", "capturep",
34	"b:E:S:t:", 0, 0,
35	"[-b buffer-index] [-E end-line] [-S start-line] [-t target-pane]",
36	0,
37	NULL,
38	NULL,
39	cmd_capture_pane_exec
40};
41
42int
43cmd_capture_pane_exec(struct cmd *self, struct cmd_ctx *ctx)
44{
45	struct args		*args = self->args;
46	struct window_pane	*wp;
47	char 			*buf, *line, *cause;
48	struct screen		*s;
49	struct grid		*gd;
50	int			 buffer, n;
51	u_int			 i, limit, top, bottom, tmp;
52	size_t         		 len, linelen;
53
54	if (cmd_find_pane(ctx, args_get(args, 't'), NULL, &wp) == NULL)
55		return (-1);
56	s = &wp->base;
57	gd = s->grid;
58
59	buf = NULL;
60	len = 0;
61
62	n = args_strtonum(args, 'S', SHRT_MIN, SHRT_MAX, &cause);
63	if (cause != NULL) {
64		top = gd->hsize;
65		xfree(cause);
66	} else if (n < 0 && (u_int) -n > gd->hsize)
67		top = 0;
68	else
69		top = gd->hsize + n;
70	if (top > gd->hsize + gd->sy - 1)
71		top = gd->hsize + gd->sy - 1;
72
73	n = args_strtonum(args, 'E', SHRT_MIN, SHRT_MAX, &cause);
74	if (cause != NULL) {
75		bottom = gd->hsize + gd->sy - 1;
76		xfree(cause);
77	} else if (n < 0 && (u_int) -n > gd->hsize)
78		bottom = 0;
79	else
80		bottom = gd->hsize + n;
81	if (bottom > gd->hsize + gd->sy - 1)
82		bottom = gd->hsize + gd->sy - 1;
83
84	if (bottom < top) {
85		tmp = bottom;
86		bottom = top;
87		top = tmp;
88	}
89
90	for (i = top; i <= bottom; i++) {
91	       line = grid_string_cells(s->grid, 0, i, screen_size_x(s));
92	       linelen = strlen(line);
93
94	       buf = xrealloc(buf, 1, len + linelen + 1);
95	       memcpy(buf + len, line, linelen);
96	       len += linelen;
97	       buf[len++] = '\n';
98
99	       xfree(line);
100	}
101
102	limit = options_get_number(&global_options, "buffer-limit");
103
104	if (!args_has(args, 'b')) {
105		paste_add(&global_buffers, buf, len, limit);
106		return (0);
107	}
108
109	buffer = args_strtonum(args, 'b', 0, INT_MAX, &cause);
110	if (cause != NULL) {
111		ctx->error(ctx, "buffer %s", cause);
112		xfree(cause);
113		return (-1);
114	}
115
116	if (paste_replace(&global_buffers, buffer, buf, len) != 0) {
117		ctx->error(ctx, "no buffer %d", buffer);
118		xfree(buf);
119		return (-1);
120	}
121
122	return (0);
123}
124