tmux/cmd-copy-mode.c
Nicholas Marriott 20636d956d 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.
2013-03-24 09:54:10 +00:00

65 lines
1.8 KiB
C

/* $OpenBSD$ */
/*
* 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 "tmux.h"
/*
* Enter copy mode.
*/
void cmd_copy_mode_key_binding(struct cmd *, int);
enum cmd_retval cmd_copy_mode_exec(struct cmd *, struct cmd_q *);
const struct cmd_entry cmd_copy_mode_entry = {
"copy-mode", NULL,
"t:u", 0, 0,
"[-u] " CMD_TARGET_PANE_USAGE,
0,
cmd_copy_mode_key_binding,
NULL,
cmd_copy_mode_exec
};
void
cmd_copy_mode_key_binding(struct cmd *self, int key)
{
self->args = args_create(0);
if (key == KEYC_PPAGE)
args_set(self->args, 'u', NULL);
}
enum cmd_retval
cmd_copy_mode_exec(struct cmd *self, struct cmd_q *cmdq)
{
struct args *args = self->args;
struct window_pane *wp;
if (cmd_find_pane(cmdq, args_get(args, 't'), NULL, &wp) == NULL)
return (CMD_RETURN_ERROR);
if (window_pane_set_mode(wp, &window_copy_mode) != 0)
return (CMD_RETURN_NORMAL);
window_copy_init_from_pane(wp);
if (wp->mode == &window_copy_mode && args_has(self->args, 'u'))
window_copy_pageup(wp);
return (CMD_RETURN_NORMAL);
}