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tmux 2.4

/* $OpenBSD$ */

/*
 * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>
 *
 * 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 <stdlib.h>
#include <string.h>

#include "tmux.h"

/*
 * Send keys to client.
 */

static enum cmd_retval	cmd_send_keys_exec(struct cmd *, struct cmdq_item *);

const struct cmd_entry cmd_send_keys_entry = {
	.name = "send-keys",
	.alias = "send",

	.args = { "lXRMN:t:", 0, -1 },
	.usage = "[-lXRM] [-N repeat-count] " CMD_TARGET_PANE_USAGE " key ...",

	.tflag = CMD_PANE,

	.flags = CMD_AFTERHOOK,
	.exec = cmd_send_keys_exec
};

const struct cmd_entry cmd_send_prefix_entry = {
	.name = "send-prefix",
	.alias = NULL,

	.args = { "2t:", 0, 0 },
	.usage = "[-2] " CMD_TARGET_PANE_USAGE,

	.tflag = CMD_PANE,

	.flags = CMD_AFTERHOOK,
	.exec = cmd_send_keys_exec
};

static enum cmd_retval
cmd_send_keys_exec(struct cmd *self, struct cmdq_item *item)
{
	struct args		*args = self->args;
	struct client		*c = item->state.c;
	struct window_pane	*wp = item->state.tflag.wp;
	struct session		*s = item->state.tflag.s;
	struct mouse_event	*m = &item->mouse;
	struct utf8_data	*ud, *uc;
	wchar_t			 wc;
	int			 i, literal;
	key_code		 key;
	u_int			 np = 1;
	char			*cause = NULL;

	if (args_has(args, 'N')) {
		np = args_strtonum(args, 'N', 1, UINT_MAX, &cause);
		if (cause != NULL) {
			cmdq_error(item, "repeat count %s", cause);
			free(cause);
			return (CMD_RETURN_ERROR);
		}
		if (args_has(args, 'X') || args->argc == 0)
			wp->modeprefix = np;
	}

	if (args_has(args, 'X')) {
		if (wp->mode == NULL || wp->mode->command == NULL) {
			cmdq_error(item, "not in a mode");
			return (CMD_RETURN_ERROR);
		}
		if (!m->valid)
			wp->mode->command(wp, c, s, args, NULL);
		else
			wp->mode->command(wp, c, s, args, m);
		return (CMD_RETURN_NORMAL);
	}

	if (args_has(args, 'M')) {
		wp = cmd_mouse_pane(m, &s, NULL);
		if (wp == NULL) {
			cmdq_error(item, "no mouse target");
			return (CMD_RETURN_ERROR);
		}
		window_pane_key(wp, NULL, s, m->key, m);
		return (CMD_RETURN_NORMAL);
	}

	if (self->entry == &cmd_send_prefix_entry) {
		if (args_has(args, '2'))
			key = options_get_number(s->options, "prefix2");
		else
			key = options_get_number(s->options, "prefix");
		window_pane_key(wp, NULL, s, key, NULL);
		return (CMD_RETURN_NORMAL);
	}

	if (args_has(args, 'R')) {
		window_pane_reset_palette(wp);
		input_reset(wp, 1);
	}

	for (; np != 0; np--) {
		for (i = 0; i < args->argc; i++) {
			literal = args_has(args, 'l');
			if (!literal) {
				key = key_string_lookup_string(args->argv[i]);
				if (key != KEYC_NONE && key != KEYC_UNKNOWN)
					window_pane_key(wp, NULL, s, key, NULL);
				else
					literal = 1;
			}
			if (literal) {
				ud = utf8_fromcstr(args->argv[i]);
				for (uc = ud; uc->size != 0; uc++) {
					if (utf8_combine(uc, &wc) != UTF8_DONE)
						continue;
					window_pane_key(wp, NULL, s, wc, NULL);
				}
				free(ud);
			}
		}

	}

	return (CMD_RETURN_NORMAL);
}