tmux/cmd-choose-buffer.c
Nicholas Marriott 3964309c67 Add a command queue to standardize and simplify commands that call other
commands and allow a command to block execution of subsequent commands. This
allows run-shell and if-shell to be synchronous which has been much requested.

Each client has a default command queue and commands are consumed one at a time
from it. A command may suspend execution from the queue by returning
CMD_RETURN_WAIT and then resume it by calling cmd_continue() - for example
run-shell does this from the callback that is fired after the job is freed.

When the command queue becomes empty, command clients are automatically exited
(unless attaching). A callback is also fired - this is used for nested commands
in, for example, if-shell which can block execution of the client's cmdq until
a new cmdq becomes empty.

Also merge all the old error/info/print functions together and lose the old
curclient/cmdclient distinction - a cmdq is bound to one client (or none if in
the configuration file), this is a command client if c->session is NULL
otherwise an attached client.
2013-02-23 22:25:58 +00:00

97 lines
2.6 KiB
C

/* $Id$ */
/*
* Copyright (c) 2010 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 <stdlib.h>
#include "tmux.h"
/*
* Enter choice mode to choose a buffer.
*/
enum cmd_retval cmd_choose_buffer_exec(struct cmd *, struct cmd_q *);
const struct cmd_entry cmd_choose_buffer_entry = {
"choose-buffer", NULL,
"F:t:", 0, 1,
CMD_TARGET_WINDOW_USAGE " [-F format] [template]",
0,
NULL,
NULL,
cmd_choose_buffer_exec
};
enum cmd_retval
cmd_choose_buffer_exec(struct cmd *self, struct cmd_q *cmdq)
{
struct args *args = self->args;
struct client *c;
struct window_choose_data *cdata;
struct winlink *wl;
struct paste_buffer *pb;
char *action, *action_data;
const char *template;
u_int idx;
if ((c = cmd_current_client(cmdq)) == NULL) {
cmdq_error(cmdq, "no client available");
return (CMD_RETURN_ERROR);
}
if ((template = args_get(args, 'F')) == NULL)
template = CHOOSE_BUFFER_TEMPLATE;
if ((wl = cmd_find_window(cmdq, args_get(args, 't'), NULL)) == NULL)
return (CMD_RETURN_ERROR);
if (paste_get_top(&global_buffers) == NULL)
return (CMD_RETURN_NORMAL);
if (window_pane_set_mode(wl->window->active, &window_choose_mode) != 0)
return (CMD_RETURN_NORMAL);
if (args->argc != 0)
action = xstrdup(args->argv[0]);
else
action = xstrdup("paste-buffer -b '%%'");
idx = 0;
while ((pb = paste_walk_stack(&global_buffers, &idx)) != NULL) {
cdata = window_choose_data_create(TREE_OTHER, c, c->session);
cdata->idx = idx - 1;
cdata->ft_template = xstrdup(template);
format_add(cdata->ft, "line", "%u", idx - 1);
format_paste_buffer(cdata->ft, pb);
xasprintf(&action_data, "%u", idx - 1);
cdata->command = cmd_template_replace(action, action_data, 1);
free(action_data);
window_choose_add(wl->window->active, cdata);
}
free(action);
window_choose_ready(wl->window->active, 0, NULL);
return (CMD_RETURN_NORMAL);
}