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/* $Id: cmd-choose-window.c,v 1.26 2011/01/07 16:55:40 tcunha Exp $ */

/*
* Copyright (c) 2009 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 <ctype.h>

#include "tmux.h"

/*
* Enter choice mode to choose a window.
*/

int cmd_choose_window_exec(struct cmd *, struct cmd_ctx *);

void cmd_choose_window_callback(void *, int);
void cmd_choose_window_free(void *);

const struct cmd_entry cmd_choose_window_entry = {
"choose-window", NULL,
"t:", 0, 1,
CMD_TARGET_WINDOW_USAGE " [template]",
0,
NULL,
NULL,
cmd_choose_window_exec
};

struct cmd_choose_window_data {
struct client *client;
struct session *session;
char *template;
};

int
cmd_choose_window_exec(struct cmd *self, struct cmd_ctx *ctx)
{
struct args *args = self->args;
struct cmd_choose_window_data *cdata;
struct session *s;
struct winlink *wl, *wm;
struct window *w;
u_int idx, cur;
char *flags, *title;
const char *left, *right;

if (ctx->curclient == NULL) {
ctx->error(ctx, "must be run interactively");
return (-1);
}
s = ctx->curclient->session;

if ((wl = cmd_find_window(ctx, args_get(args, 't'), NULL)) == NULL)
return (-1);

if (window_pane_set_mode(wl->window->active, &window_choose_mode) != 0)
return (0);

cur = idx = 0;
RB_FOREACH(wm, winlinks, &s->windows) {
w = wm->window;

if (wm == s->curw)
cur = idx;
idx++;

flags = window_printable_flags(s, wm);
title = w->active->screen->title;
if (wm == wl)
title = w->active->base.title;
left = " \"";
right = "\"";
if (*title == '\0')
left = right = "";

window_choose_add(wl->window->active,
wm->idx, "%3d: %s%s [%ux%u] (%u panes%s)%s%s%s",
wm->idx, w->name, flags, w->sx, w->sy, window_count_panes(w),
w->active->fd == -1 ? ", dead" : "",
left, title, right);

xfree(flags);
}

cdata = xmalloc(sizeof *cdata);
if (args->argc != 0)
cdata->template = xstrdup(args->argv[0]);
else
cdata->template = xstrdup("select-window -t '%%'");
cdata->session = s;
cdata->session->references++;
cdata->client = ctx->curclient;
cdata->client->references++;

window_choose_ready(wl->window->active,
cur, cmd_choose_window_callback, cmd_choose_window_free, cdata);

return (0);
}

void
cmd_choose_window_callback(void *data, int idx)
{
struct cmd_choose_window_data *cdata = data;
struct session *s = cdata->session;
struct cmd_list *cmdlist;
struct cmd_ctx ctx;
char *target, *template, *cause;

if (idx == -1)
return;
if (!session_alive(s))
return;
if (cdata->client->flags & CLIENT_DEAD)
return;

xasprintf(&target, "%s:%d", s->name, idx);
template = cmd_template_replace(cdata->template, target, 1);
xfree(target);

if (cmd_string_parse(template, &cmdlist, &cause) != 0) {
if (cause != NULL) {
*cause = toupper((u_char) *cause);
status_message_set(cdata->client, "%s", cause);
xfree(cause);
}
xfree(template);
return;
}
xfree(template);

ctx.msgdata = NULL;
ctx.curclient = cdata->client;

ctx.error = key_bindings_error;
ctx.print = key_bindings_print;
ctx.info = key_bindings_info;

ctx.cmdclient = NULL;

cmd_list_exec(cmdlist, &ctx);
cmd_list_free(cmdlist);
}

void
cmd_choose_window_free(void *data)
{
struct cmd_choose_window_data *cdata = data;

cdata->session->references--;
cdata->client->references--;
xfree(cdata->template);
xfree(cdata);
}
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