tmux/cmd-capture-pane.c

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/* $OpenBSD$ */
/*
* Copyright (c) 2009 Jonathan Alvarado <radobobo@users.sourceforge.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include "tmux.h"
/*
* Write the entire contents of a pane to a buffer.
*/
int cmd_capture_pane_parse(struct cmd *, int, char **, char **);
int cmd_capture_pane_exec(struct cmd *, struct cmd_ctx *);
void cmd_capture_pane_free(struct cmd *);
void cmd_capture_pane_init(struct cmd *, int);
size_t cmd_capture_pane_print(struct cmd *, char *, size_t);
struct cmd_capture_pane_data {
char *target;
int buffer;
};
const struct cmd_entry cmd_capture_pane_entry = {
"capture-pane", "capturep",
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"[-b buffer-index] [-t target-pane]",
0, "",
cmd_capture_pane_init,
cmd_capture_pane_parse,
cmd_capture_pane_exec,
cmd_capture_pane_free,
cmd_capture_pane_print
};
/* ARGSUSED */
void
cmd_capture_pane_init(struct cmd *self, unused int arg)
{
struct cmd_capture_pane_data *data;
self->data = data = xmalloc(sizeof *data);
data->buffer = -1;
data->target = NULL;
}
int
cmd_capture_pane_parse(struct cmd *self, int argc, char **argv, char **cause)
{
struct cmd_capture_pane_data *data;
const char *errstr;
int n, opt;
self->entry->init(self, KEYC_NONE);
data = self->data;
while ((opt = getopt(argc, argv, "b:t:")) != -1) {
switch (opt) {
case 'b':
if (data->buffer == -1) {
n = strtonum(optarg, 0, INT_MAX, &errstr);
if (errstr != NULL) {
xasprintf(cause, "buffer %s", errstr);
goto error;
}
data->buffer = n;
}
break;
case 't':
if (data->target == NULL)
data->target = xstrdup(optarg);
break;
default:
goto usage;
}
}
argc -= optind;
argv += optind;
return (0);
usage:
xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
error:
self->entry->free(self);
return (-1);
}
int
cmd_capture_pane_exec(struct cmd *self, struct cmd_ctx *ctx)
{
struct cmd_capture_pane_data *data = self->data;
struct window_pane *wp;
char *buf, *line;
struct screen *s;
u_int i, limit;
size_t len, linelen;
if (cmd_find_pane(ctx, data->target, NULL, &wp) == NULL)
return (-1);
s = &wp->base;
buf = NULL;
len = 0;
for (i = 0; i < screen_size_y(s); i++) {
line = grid_view_string_cells(s->grid, 0, i, screen_size_x(s));
linelen = strlen(line);
buf = xrealloc(buf, 1, len + linelen + 1);
memcpy(buf + len, line, linelen);
len += linelen;
buf[len++] = '\n';
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xfree(line);
}
limit = options_get_number(&global_options, "buffer-limit");
if (data->buffer == -1) {
paste_add(&global_buffers, buf, len, limit);
return (0);
}
if (paste_replace(&global_buffers, data->buffer, buf, len) != 0) {
ctx->error(ctx, "no buffer %d", data->buffer);
xfree(buf);
return (-1);
}
return (0);
}
void
cmd_capture_pane_free(struct cmd *self)
{
struct cmd_capture_pane_data *data = self->data;
if (data->target != NULL)
xfree(data->target);
xfree(data);
}
size_t
cmd_capture_pane_print(struct cmd *self, char *buf, size_t len)
{
struct cmd_capture_pane_data *data = self->data;
size_t off = 0;
off += xsnprintf(buf, len, "%s", self->entry->name);
if (data == NULL)
return (off);
if (off < len && data->buffer != -1)
off += xsnprintf(buf + off, len - off, " -b %d", data->buffer);
if (off < len && data->target != NULL)
off += xsnprintf(buf + off, len - off, " -t %s", data->target);
return (off);
}