tmux/cmd-swap-window.c

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/* $Id: cmd-swap-window.c,v 1.8 2008-06-03 16:55:09 nicm Exp $ */
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/*
* Copyright (c) 2007 Nicholas Marriott <nicm@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 <getopt.h>
#include <stdlib.h>
#include "tmux.h"
/*
* Swap one window with another.
*/
int cmd_swap_window_parse(struct cmd *, void **, int, char **, char **);
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void cmd_swap_window_exec(void *, struct cmd_ctx *);
void cmd_swap_window_send(void *, struct buffer *);
void cmd_swap_window_recv(void **, struct buffer *);
void cmd_swap_window_free(void *);
struct cmd_swap_window_data {
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char *cname;
char *sname;
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int dstidx;
int srcidx;
char *srcname;
int flag_detached;
};
const struct cmd_entry cmd_swap_window_entry = {
"swap-window", "swapw",
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"[-c client-tty|-s session-name] [-i index] session-name index",
0,
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cmd_swap_window_parse,
cmd_swap_window_exec,
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cmd_swap_window_send,
cmd_swap_window_recv,
cmd_swap_window_free,
NULL
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};
int
cmd_swap_window_parse(
struct cmd *self, void **ptr, int argc, char **argv, char **cause)
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{
struct cmd_swap_window_data *data;
const char *errstr;
int opt;
*ptr = data = xmalloc(sizeof *data);
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data->cname = NULL;
data->sname = NULL;
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data->flag_detached = 0;
data->dstidx = -1;
data->srcidx = -1;
data->srcname = NULL;
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while ((opt = getopt(argc, argv, "c:di:s:")) != EOF) {
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switch (opt) {
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case 'c':
if (data->sname != NULL)
goto usage;
if (data->cname == NULL)
data->cname = xstrdup(optarg);
break;
case 'd':
data->flag_detached = 1;
break;
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case 'i':
data->dstidx = strtonum(optarg, 0, INT_MAX, &errstr);
if (errstr != NULL) {
xasprintf(cause, "index %s", errstr);
goto error;
}
break;
case 's':
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if (data->cname != NULL)
goto usage;
if (data->sname == NULL)
data->sname = xstrdup(optarg);
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break;
default:
goto usage;
}
}
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argc -= optind;
argv += optind;
if (argc != 2)
goto usage;
data->srcname = xstrdup(argv[0]);
data->srcidx = strtonum(argv[1], 0, INT_MAX, &errstr);
if (errstr != NULL) {
xasprintf(cause, "index %s", errstr);
goto error;
}
return (0);
usage:
xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
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error:
cmd_swap_window_free(data);
return (-1);
}
void
cmd_swap_window_exec(void *ptr, struct cmd_ctx *ctx)
{
struct cmd_swap_window_data *data = ptr;
struct session *s, *src;
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struct winlink *srcwl, *dstwl;
struct window *w;
if (data == NULL)
return;
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if ((s = cmd_find_session(ctx, data->cname, data->sname)) == NULL)
return;
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if ((src = session_find(data->srcname)) == NULL) {
ctx->error(ctx, "session not found: %s", data->srcname);
return;
}
if (data->srcidx < 0)
data->srcidx = -1;
if (data->srcidx == -1)
srcwl = src->curw;
else {
srcwl = winlink_find_by_index(&src->windows, data->srcidx);
if (srcwl == NULL) {
ctx->error(ctx, "no window %d", data->srcidx);
return;
}
}
if (data->dstidx < 0)
data->dstidx = -1;
if (data->dstidx == -1)
dstwl = s->curw;
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else {
dstwl = winlink_find_by_index(&s->windows, data->dstidx);
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if (dstwl == NULL) {
ctx->error(ctx, "no window %d", data->dstidx);
return;
}
}
w = dstwl->window;
dstwl->window = srcwl->window;
srcwl->window = w;
if (!data->flag_detached) {
session_select(s, dstwl->idx);
if (src != s)
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session_select(src, srcwl->idx);
}
server_redraw_session(src);
if (src != s)
server_redraw_session(s);
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if (ctx->cmdclient != NULL)
server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
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}
void
cmd_swap_window_send(void *ptr, struct buffer *b)
{
struct cmd_swap_window_data *data = ptr;
buffer_write(b, data, sizeof *data);
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cmd_send_string(b, data->cname);
cmd_send_string(b, data->sname);
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cmd_send_string(b, data->srcname);
}
void
cmd_swap_window_recv(void **ptr, struct buffer *b)
{
struct cmd_swap_window_data *data;
*ptr = data = xmalloc(sizeof *data);
buffer_read(b, data, sizeof *data);
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data->cname = cmd_recv_string(b);
data->sname = cmd_recv_string(b);
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data->srcname = cmd_recv_string(b);
}
void
cmd_swap_window_free(void *ptr)
{
struct cmd_swap_window_data *data = ptr;
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if (data->cname != NULL)
xfree(data->cname);
if (data->sname != NULL)
xfree(data->sname);
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if (data->srcname != NULL)
xfree(data->srcname);
xfree(data);
}