tmux/cmd-link-window.c

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/* $Id: cmd-link-window.c,v 1.9 2007-12-06 09:46:21 nicm Exp $ */
/*
* 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"
/*
* Link a window into another session.
*/
int cmd_link_window_parse(void **, int, char **, char **);
void cmd_link_window_exec(void *, struct cmd_ctx *);
void cmd_link_window_send(void *, struct buffer *);
void cmd_link_window_recv(void **, struct buffer *);
void cmd_link_window_free(void *);
struct cmd_link_window_data {
int flag_detached;
int flag_kill;
int dstidx;
int srcidx;
char *srcname;
};
const struct cmd_entry cmd_link_window_entry = {
"link-window", "linkw", "[-dk] [-i index] name index",
CMD_NOCLIENT,
cmd_link_window_parse,
cmd_link_window_exec,
cmd_link_window_send,
cmd_link_window_recv,
cmd_link_window_free
};
int
cmd_link_window_parse(void **ptr, int argc, char **argv, char **cause)
{
struct cmd_link_window_data *data;
const char *errstr;
int opt;
*ptr = data = xmalloc(sizeof *data);
data->flag_detached = 0;
data->flag_kill = 0;
data->dstidx = -1;
data->srcidx = -1;
data->srcname = NULL;
while ((opt = getopt(argc, argv, "dki:")) != EOF) {
switch (opt) {
case 'i':
data->dstidx = strtonum(optarg, 0, INT_MAX, &errstr);
if (errstr != NULL) {
xasprintf(cause, "index %s", errstr);
goto error;
}
break;
case 'd':
data->flag_detached = 1;
break;
case 'k':
data->flag_kill = 1;
break;
default:
goto usage;
}
}
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:
usage(cause, "%s %s",
cmd_link_window_entry.name, cmd_link_window_entry.usage);
error:
cmd_link_window_free(data);
return (-1);
}
void
cmd_link_window_exec(void *ptr, struct cmd_ctx *ctx)
{
struct cmd_link_window_data *data = ptr;
struct session *dst = ctx->session, *src;
struct winlink *wl, *wl2;
if (data == NULL)
return;
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)
wl = src->curw;
else {
wl = winlink_find_by_index(&src->windows, data->srcidx);
if (wl == NULL) {
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ctx->error(ctx, "no window %d", data->srcidx);
return;
}
}
if (data->dstidx < 0)
data->dstidx = -1;
if (data->flag_kill && data->dstidx != -1) {
wl2 = winlink_find_by_index(&dst->windows, data->dstidx);
/*
* Can't use session_detach as it will destroy session if this
* makes it empty.
*/
session_cancelbell(dst, wl2);
winlink_remove(&dst->windows, wl2);
/* Force select/redraw if current. */
if (wl2 == dst->curw) {
data->flag_detached = 0;
dst->curw = NULL;
}
if (wl2 == dst->lastw)
dst->lastw = NULL;
/*
* Can't error out after this or there could be an empty
* session!
*/
}
wl = session_attach(dst, wl->window, data->dstidx);
if (wl == NULL) {
ctx->error(ctx, "index in use: %d", data->dstidx);
return;
}
if (!data->flag_detached) {
session_select(dst, wl->idx);
server_redraw_session(dst);
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} else
server_status_session(dst);
if (ctx->cmdclient != NULL)
server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
}
void
cmd_link_window_send(void *ptr, struct buffer *b)
{
struct cmd_link_window_data *data = ptr;
buffer_write(b, data, sizeof *data);
cmd_send_string(b, data->srcname);
}
void
cmd_link_window_recv(void **ptr, struct buffer *b)
{
struct cmd_link_window_data *data;
*ptr = data = xmalloc(sizeof *data);
buffer_read(b, data, sizeof *data);
data->srcname = cmd_recv_string(b);
}
void
cmd_link_window_free(void *ptr)
{
struct cmd_link_window_data *data = ptr;
if (data->srcname != NULL)
xfree(data->srcname);
xfree(data);
}