cmd-display-menu.c - tmux - Rivoreo Source Code Repositories

 /* $OpenBSD$ */

 /*
  * Copyright (c) 2019 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 <paths.h>
 #include <stdlib.h>
 #include <string.h>

 #include "tmux.h"

 /*
  * Display a menu on a client.
  */

 static enum args_parse_type	cmd_display_menu_args_parse(struct args *,
 				    u_int, char **);
 static enum cmd_retval		cmd_display_menu_exec(struct cmd *,
 				    struct cmdq_item *);
 static enum cmd_retval		cmd_display_popup_exec(struct cmd *,
 				    struct cmdq_item *);

 const struct cmd_entry cmd_display_menu_entry = {
 	.name = "display-menu",
 	.alias = "menu",

 	.args = { "c:t:OT:x:y:", 1, -1, cmd_display_menu_args_parse },
 	.usage = "[-O] [-c target-client] " CMD_TARGET_PANE_USAGE " [-T title] "
 		 "[-x position] [-y position] name key command ...",

 	.target = { 't', CMD_FIND_PANE, 0 },

 	.flags = CMD_AFTERHOOK|CMD_CLIENT_CFLAG,
 	.exec = cmd_display_menu_exec
 };

 const struct cmd_entry cmd_display_popup_entry = {
 	.name = "display-popup",
 	.alias = "popup",

 	.args = { "Bb:Cc:d:e:Eh:t:T:w:x:y:", 0, -1, NULL },
 	.usage = "[-BCE] [-b border-lines] [-c target-client] "
 		 "[-d start-directory] [-e environment] [-h height] "
 		 CMD_TARGET_PANE_USAGE " [-T title] "
 		 "[-w width] [-x position] [-y position] [shell-command]",

 	.target = { 't', CMD_FIND_PANE, 0 },

 	.flags = CMD_AFTERHOOK|CMD_CLIENT_CFLAG,
 	.exec = cmd_display_popup_exec
 };

 static enum args_parse_type
 cmd_display_menu_args_parse(struct args *args, u_int idx, __unused char **cause)
 {
 	u_int			 i = 0;
 	enum args_parse_type	 type = ARGS_PARSE_STRING;

 	for (;;) {
 		type = ARGS_PARSE_STRING;
 		if (i == idx)
 			break;
 		if (*args_string(args, i++) == '\0')
 			continue;

 		type = ARGS_PARSE_STRING;
 		if (i++ == idx)
 			break;

 		type = ARGS_PARSE_COMMANDS_OR_STRING;
 		if (i++ == idx)
 			break;
 	}
 	return (type);
 }

 static int
 cmd_display_menu_get_position(struct client *tc, struct cmdq_item *item,
     struct args *args, u_int *px, u_int *py, u_int w, u_int h)
 {
 	struct tty		*tty = &tc->tty;
 	struct cmd_find_state	*target = cmdq_get_target(item);
 	struct key_event	*event = cmdq_get_event(item);
 	struct session		*s = tc->session;
 	struct winlink		*wl = target->wl;
 	struct window_pane	*wp = target->wp;
 	struct style_ranges	*ranges = NULL;
 	struct style_range	*sr = NULL;
 	const char		*xp, *yp;
 	char			*p;
 	int			 top;
 	u_int			 line, ox, oy, sx, sy, lines, position;
 	long			 n;
 	struct format_tree	*ft;

 	/*
 	 * Work out the position from the -x and -y arguments. This is the
 	 * bottom-left position.
 	 */

 	/* If the popup is too big, stop now. */
 	if (w > tty->sx || h > tty->sy)
 		return (0);

 	/* Create format with mouse position if any. */
 	ft = format_create_from_target(item);
 	if (event->m.valid) {
 		format_add(ft, "popup_mouse_x", "%u", event->m.x);
 		format_add(ft, "popup_mouse_y", "%u", event->m.y);
 	}

 	/*
 	 * If there are any status lines, add this window position and the
 	 * status line position.
 	 */
 	top = status_at_line(tc);
 	if (top != -1) {
 		lines = status_line_size(tc);
 		if (top == 0)
 			top = lines;
 		else
 			top = 0;
 		position = options_get_number(s->options, "status-position");

 		for (line = 0; line < lines; line++) {
 			ranges = &tc->status.entries[line].ranges;
 			TAILQ_FOREACH(sr, ranges, entry) {
 				if (sr->type != STYLE_RANGE_WINDOW)
 					continue;
 				if (sr->argument == (u_int)wl->idx)
 					break;
 			}
 			if (sr != NULL)
 				break;
 		}

 		if (sr != NULL) {
 			format_add(ft, "popup_window_status_line_x", "%u",
 			    sr->start);
 			if (position == 0) {
 				format_add(ft, "popup_window_status_line_y",
 				    "%u", line + 1 + h);
 			} else {
 				format_add(ft, "popup_window_status_line_y",
 				    "%u", tty->sy - lines + line);
 			}
 		}

 		if (position == 0)
 			format_add(ft, "popup_status_line_y", "%u", lines + h);
 		else {
 			format_add(ft, "popup_status_line_y", "%u",
 			    tty->sy - lines);
 		}
 	} else
 		top = 0;

 	/* Popup width and height. */
 	format_add(ft, "popup_width", "%u", w);
 	format_add(ft, "popup_height", "%u", h);

 	/* Position so popup is in the centre. */
 	n = (long)(tty->sx - 1) / 2 - w / 2;
 	if (n < 0)
 		format_add(ft, "popup_centre_x", "%u", 0);
 	else
 		format_add(ft, "popup_centre_x", "%ld", n);
 	n = (tty->sy - 1) / 2 + h / 2;
 	if (n >= tty->sy)
 		format_add(ft, "popup_centre_y", "%u", tty->sy - h);
 	else
 		format_add(ft, "popup_centre_y", "%ld", n);

 	/* Position of popup relative to mouse. */
 	if (event->m.valid) {
 		n = (long)event->m.x - w / 2;
 		if (n < 0)
 			format_add(ft, "popup_mouse_centre_x", "%u", 0);
 		else
 			format_add(ft, "popup_mouse_centre_x", "%ld", n);
 		n = event->m.y - h / 2;
 		if (n + h >= tty->sy) {
 			format_add(ft, "popup_mouse_centre_y", "%u",
 			    tty->sy - h);
 		} else
 			format_add(ft, "popup_mouse_centre_y", "%ld", n);
 		n = (long)event->m.y + h;
 		if (n >= tty->sy)
 			format_add(ft, "popup_mouse_top", "%u", tty->sy - 1);
 		else
 			format_add(ft, "popup_mouse_top", "%ld", n);
 		n = event->m.y - h;
 		if (n < 0)
 			format_add(ft, "popup_mouse_bottom", "%u", 0);
 		else
 			format_add(ft, "popup_mouse_bottom", "%ld", n);
 	}

 	/* Position in pane. */
 	tty_window_offset(&tc->tty, &ox, &oy, &sx, &sy);
 	n = top + wp->yoff - oy + h;
 	if (n >= tty->sy)
 		format_add(ft, "popup_pane_top", "%u", tty->sy - h);
 	else
 		format_add(ft, "popup_pane_top", "%ld", n);
 	format_add(ft, "popup_pane_bottom", "%u", top + wp->yoff + wp->sy - oy);
 	format_add(ft, "popup_pane_left", "%u", wp->xoff - ox);
 	n = (long)wp->xoff + wp->sx - ox - w;
 	if (n < 0)
 		format_add(ft, "popup_pane_right", "%u", 0);
 	else
 		format_add(ft, "popup_pane_right", "%ld", n);

 	/* Expand horizontal position. */
 	xp = args_get(args, 'x');
 	if (xp == NULL || strcmp(xp, "C") == 0)
 		xp = "#{popup_centre_x}";
 	else if (strcmp(xp, "R") == 0)
 		xp = "#{popup_pane_right}";
 	else if (strcmp(xp, "P") == 0)
 		xp = "#{popup_pane_left}";
 	else if (strcmp(xp, "M") == 0)
 		xp = "#{popup_mouse_centre_x}";
 	else if (strcmp(xp, "W") == 0)
 		xp = "#{popup_window_status_line_x}";
 	p = format_expand(ft, xp);
 	n = strtol(p, NULL, 10);
 	if (n + w >= tty->sx)
 		n = tty->sx - w;
 	else if (n < 0)
 		n = 0;
 	*px = n;
 	log_debug("%s: -x: %s = %s = %u (-w %u)", __func__, xp, p, *px, w);
 	free(p);

 	/* Expand vertical position  */
 	yp = args_get(args, 'y');
 	if (yp == NULL || strcmp(yp, "C") == 0)
 		yp = "#{popup_centre_y}";
 	else if (strcmp(yp, "P") == 0)
 		yp = "#{popup_pane_bottom}";
 	else if (strcmp(yp, "M") == 0)
 		yp = "#{popup_mouse_top}";
 	else if (strcmp(yp, "S") == 0)
 		yp = "#{popup_status_line_y}";
 	else if (strcmp(yp, "W") == 0)
 		yp = "#{popup_window_status_line_y}";
 	p = format_expand(ft, yp);
 	n = strtol(p, NULL, 10);
 	if (n < h)
 		n = 0;
 	else
 		n -= h;
 	if (n + h >= tty->sy)
 		n = tty->sy - h;
 	else if (n < 0)
 		n = 0;
 	*py = n;
 	log_debug("%s: -y: %s = %s = %u (-h %u)", __func__, yp, p, *py, h);
 	free(p);

 	return (1);
 }

 static enum cmd_retval
 cmd_display_menu_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = cmd_get_args(self);
 	struct cmd_find_state	*target = cmdq_get_target(item);
 	struct key_event	*event = cmdq_get_event(item);
 	struct client		*tc = cmdq_get_target_client(item);
 	struct menu		*menu = NULL;
 	struct menu_item	 menu_item;
 	const char		*key, *name;
 	char			*title;
 	int			 flags = 0;
 	u_int			 px, py, i, count = args_count(args);

 	if (tc->overlay_draw != NULL)
 		return (CMD_RETURN_NORMAL);

 	if (args_has(args, 'T'))
 		title = format_single_from_target(item, args_get(args, 'T'));
 	else
 		title = xstrdup("");
 	menu = menu_create(title);

 	for (i = 0; i != count; /* nothing */) {
 		name = args_string(args, i++);
 		if (*name == '\0') {
 			menu_add_item(menu, NULL, item, tc, target);
 			continue;
 		}

 		if (count - i < 2) {
 			cmdq_error(item, "not enough arguments");
 			free(title);
 			menu_free(menu);
 			return (CMD_RETURN_ERROR);
 		}
 		key = args_string(args, i++);

 		menu_item.name = name;
 		menu_item.key = key_string_lookup_string(key);
 		menu_item.command = args_string(args, i++);

 		menu_add_item(menu, &menu_item, item, tc, target);
 	}
 	free(title);
 	if (menu == NULL) {
 		cmdq_error(item, "invalid menu arguments");
 		return (CMD_RETURN_ERROR);
 	}
 	if (menu->count == 0) {
 		menu_free(menu);
 		return (CMD_RETURN_NORMAL);
 	}
 	if (!cmd_display_menu_get_position(tc, item, args, &px, &py,
 	    menu->width + 4, menu->count + 2)) {
 		menu_free(menu);
 		return (CMD_RETURN_NORMAL);
 	}

 	if (args_has(args, 'O'))
 		flags |= MENU_STAYOPEN;
 	if (!event->m.valid)
 		flags |= MENU_NOMOUSE;
 	if (menu_display(menu, flags, item, px, py, tc, target, NULL,
 	    NULL) != 0)
 		return (CMD_RETURN_NORMAL);
 	return (CMD_RETURN_WAIT);
 }

 static enum cmd_retval
 cmd_display_popup_exec(struct cmd *self, struct cmdq_item *item)
 {
 	struct args		*args = cmd_get_args(self);
 	struct cmd_find_state	*target = cmdq_get_target(item);
 	struct session		*s = target->s;
 	struct client		*tc = cmdq_get_target_client(item);
 	struct tty		*tty = &tc->tty;
 	const char		*value, *shell, *shellcmd = NULL;
 	char			*cwd, *cause = NULL, **argv = NULL, *title;
 	int			 flags = 0, argc = 0;
 	enum box_lines		 lines = BOX_LINES_DEFAULT;
 	u_int			 px, py, w, h, count = args_count(args);
 	struct args_value	*av;
 	struct environ		*env = NULL;
 	struct options		*o = s->curw->window->options;
 	struct options_entry	*oe;

 	if (args_has(args, 'C')) {
 		server_client_clear_overlay(tc);
 		return (CMD_RETURN_NORMAL);
 	}
 	if (tc->overlay_draw != NULL)
 		return (CMD_RETURN_NORMAL);

 	h = tty->sy / 2;
 	if (args_has(args, 'h')) {
 		h = args_percentage(args, 'h', 1, tty->sy, tty->sy, &cause);
 		if (cause != NULL) {
 			cmdq_error(item, "height %s", cause);
 			free(cause);
 			return (CMD_RETURN_ERROR);
 		}
 	}

 	w = tty->sx / 2;
 	if (args_has(args, 'w')) {
 		w = args_percentage(args, 'w', 1, tty->sx, tty->sx, &cause);
 		if (cause != NULL) {
 			cmdq_error(item, "width %s", cause);
 			free(cause);
 			return (CMD_RETURN_ERROR);
 		}
 	}

 	if (w > tty->sx)
 		w = tty->sx;
 	if (h > tty->sy)
 		h = tty->sy;
 	if (!cmd_display_menu_get_position(tc, item, args, &px, &py, w, h))
 		return (CMD_RETURN_NORMAL);

 	value = args_get(args, 'b');
 	if (args_has(args, 'B'))
 		lines = BOX_LINES_NONE;
 	else if (value != NULL) {
 		oe = options_get(o, "popup-border-lines");
 		lines = options_find_choice(options_table_entry(oe), value,
 		    &cause);
 		if (cause != NULL) {
 			cmdq_error(item, "popup-border-lines %s", cause);
 			free(cause);
 			return (CMD_RETURN_ERROR);
 		}
 	}

 	value = args_get(args, 'd');
 	if (value != NULL)
 		cwd = format_single_from_target(item, value);
 	else
 		cwd = xstrdup(server_client_get_cwd(tc, s));
 	if (count == 0)
 		shellcmd = options_get_string(s->options, "default-command");
 	else if (count == 1)
 		shellcmd = args_string(args, 0);
 	if (count <= 1 && (shellcmd == NULL || *shellcmd == '\0')) {
 		shellcmd = NULL;
 		shell = options_get_string(s->options, "default-shell");
 		if (!checkshell(shell))
 			shell = _PATH_BSHELL;
 		cmd_append_argv(&argc, &argv, shell);
 	} else
 		args_to_vector(args, &argc, &argv);

 	if (args_has(args, 'e') >= 1) {
 		env = environ_create();
 		av = args_first_value(args, 'e');
 		while (av != NULL) {
 			environ_put(env, av->string, 0);
 			av = args_next_value(av);
 		}
 	}

 	if (args_has(args, 'T'))
 		title = format_single_from_target(item, args_get(args, 'T'));
 	else
 		title = xstrdup("");
 	if (args_has(args, 'E') > 1)
 		flags |= POPUP_CLOSEEXITZERO;
 	else if (args_has(args, 'E'))
 		flags |= POPUP_CLOSEEXIT;
 	if (popup_display(flags, lines, item, px, py, w, h, env, shellcmd, argc,
 	    argv, cwd, title, tc, s, NULL, NULL) != 0) {
 		cmd_free_argv(argc, argv);
 		if (env != NULL)
 			environ_free(env);
 		free(title);
 		return (CMD_RETURN_NORMAL);
 	}
 	if (env != NULL)
 		environ_free(env);
 	free(title);
 	cmd_free_argv(argc, argv);
 	return (CMD_RETURN_WAIT);
 }
	/* $OpenBSD$ */

	/*
	* Copyright (c) 2019 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 <paths.h>
	#include <stdlib.h>
	#include <string.h>

	#include "tmux.h"

	/*
	* Display a menu on a client.
	*/

	static enum args_parse_type cmd_display_menu_args_parse(struct args *,
	u_int, char **);
	static enum cmd_retval cmd_display_menu_exec(struct cmd *,
	struct cmdq_item *);
	static enum cmd_retval cmd_display_popup_exec(struct cmd *,
	struct cmdq_item *);

	const struct cmd_entry cmd_display_menu_entry = {
	.name = "display-menu",
	.alias = "menu",

	.args = { "c:t:OT:x:y:", 1, -1, cmd_display_menu_args_parse },
	.usage = "[-O] [-c target-client] " CMD_TARGET_PANE_USAGE " [-T title] "
	"[-x position] [-y position] name key command ...",

	.target = { 't', CMD_FIND_PANE, 0 },

	.flags = CMD_AFTERHOOK\|CMD_CLIENT_CFLAG,
	.exec = cmd_display_menu_exec
	};

	const struct cmd_entry cmd_display_popup_entry = {
	.name = "display-popup",
	.alias = "popup",

	.args = { "Bb:Cc:d:e:Eh:t:T:w:x:y:", 0, -1, NULL },
	.usage = "[-BCE] [-b border-lines] [-c target-client] "
	"[-d start-directory] [-e environment] [-h height] "
	CMD_TARGET_PANE_USAGE " [-T title] "
	"[-w width] [-x position] [-y position] [shell-command]",

	.target = { 't', CMD_FIND_PANE, 0 },

	.flags = CMD_AFTERHOOK\|CMD_CLIENT_CFLAG,
	.exec = cmd_display_popup_exec
	};

	static enum args_parse_type
	cmd_display_menu_args_parse(struct args args, u_int idx, __unused char *cause)
	{
	u_int i = 0;
	enum args_parse_type type = ARGS_PARSE_STRING;

	for (;;) {
	type = ARGS_PARSE_STRING;
	if (i == idx)
	break;
	if (*args_string(args, i++) == '\0')
	continue;

	type = ARGS_PARSE_STRING;
	if (i++ == idx)
	break;

	type = ARGS_PARSE_COMMANDS_OR_STRING;
	if (i++ == idx)
	break;
	}
	return (type);
	}

	static int
	cmd_display_menu_get_position(struct client tc, struct cmdq_item item,
	struct args args, u_int px, u_int *py, u_int w, u_int h)
	{
	struct tty *tty = &tc->tty;
	struct cmd_find_state *target = cmdq_get_target(item);
	struct key_event *event = cmdq_get_event(item);
	struct session *s = tc->session;
	struct winlink *wl = target->wl;
	struct window_pane *wp = target->wp;
	struct style_ranges *ranges = NULL;
	struct style_range *sr = NULL;
	const char xp, yp;
	char *p;
	int top;
	u_int line, ox, oy, sx, sy, lines, position;
	long n;
	struct format_tree *ft;

	/*
	* Work out the position from the -x and -y arguments. This is the
	* bottom-left position.
	*/

	/* If the popup is too big, stop now. */
	if (w > tty->sx \|\| h > tty->sy)
	return (0);

	/* Create format with mouse position if any. */
	ft = format_create_from_target(item);
	if (event->m.valid) {
	format_add(ft, "popup_mouse_x", "%u", event->m.x);
	format_add(ft, "popup_mouse_y", "%u", event->m.y);
	}

	/*
	* If there are any status lines, add this window position and the
	* status line position.
	*/
	top = status_at_line(tc);
	if (top != -1) {
	lines = status_line_size(tc);
	if (top == 0)
	top = lines;
	else
	top = 0;
	position = options_get_number(s->options, "status-position");

	for (line = 0; line < lines; line++) {
	ranges = &tc->status.entries[line].ranges;
	TAILQ_FOREACH(sr, ranges, entry) {
	if (sr->type != STYLE_RANGE_WINDOW)
	continue;
	if (sr->argument == (u_int)wl->idx)
	break;
	}
	if (sr != NULL)
	break;
	}

	if (sr != NULL) {
	format_add(ft, "popup_window_status_line_x", "%u",
	sr->start);
	if (position == 0) {
	format_add(ft, "popup_window_status_line_y",
	"%u", line + 1 + h);
	} else {
	format_add(ft, "popup_window_status_line_y",
	"%u", tty->sy - lines + line);
	}
	}

	if (position == 0)
	format_add(ft, "popup_status_line_y", "%u", lines + h);
	else {
	format_add(ft, "popup_status_line_y", "%u",
	tty->sy - lines);
	}
	} else
	top = 0;

	/* Popup width and height. */
	format_add(ft, "popup_width", "%u", w);
	format_add(ft, "popup_height", "%u", h);

	/* Position so popup is in the centre. */
	n = (long)(tty->sx - 1) / 2 - w / 2;
	if (n < 0)
	format_add(ft, "popup_centre_x", "%u", 0);
	else
	format_add(ft, "popup_centre_x", "%ld", n);
	n = (tty->sy - 1) / 2 + h / 2;
	if (n >= tty->sy)
	format_add(ft, "popup_centre_y", "%u", tty->sy - h);
	else
	format_add(ft, "popup_centre_y", "%ld", n);

	/* Position of popup relative to mouse. */
	if (event->m.valid) {
	n = (long)event->m.x - w / 2;
	if (n < 0)
	format_add(ft, "popup_mouse_centre_x", "%u", 0);
	else
	format_add(ft, "popup_mouse_centre_x", "%ld", n);
	n = event->m.y - h / 2;
	if (n + h >= tty->sy) {
	format_add(ft, "popup_mouse_centre_y", "%u",
	tty->sy - h);
	} else
	format_add(ft, "popup_mouse_centre_y", "%ld", n);
	n = (long)event->m.y + h;
	if (n >= tty->sy)
	format_add(ft, "popup_mouse_top", "%u", tty->sy - 1);
	else
	format_add(ft, "popup_mouse_top", "%ld", n);
	n = event->m.y - h;
	if (n < 0)
	format_add(ft, "popup_mouse_bottom", "%u", 0);
	else
	format_add(ft, "popup_mouse_bottom", "%ld", n);
	}

	/* Position in pane. */
	tty_window_offset(&tc->tty, &ox, &oy, &sx, &sy);
	n = top + wp->yoff - oy + h;
	if (n >= tty->sy)
	format_add(ft, "popup_pane_top", "%u", tty->sy - h);
	else
	format_add(ft, "popup_pane_top", "%ld", n);
	format_add(ft, "popup_pane_bottom", "%u", top + wp->yoff + wp->sy - oy);
	format_add(ft, "popup_pane_left", "%u", wp->xoff - ox);
	n = (long)wp->xoff + wp->sx - ox - w;
	if (n < 0)
	format_add(ft, "popup_pane_right", "%u", 0);
	else
	format_add(ft, "popup_pane_right", "%ld", n);

	/* Expand horizontal position. */
	xp = args_get(args, 'x');
	if (xp == NULL \|\| strcmp(xp, "C") == 0)
	xp = "#{popup_centre_x}";
	else if (strcmp(xp, "R") == 0)
	xp = "#{popup_pane_right}";
	else if (strcmp(xp, "P") == 0)
	xp = "#{popup_pane_left}";
	else if (strcmp(xp, "M") == 0)
	xp = "#{popup_mouse_centre_x}";
	else if (strcmp(xp, "W") == 0)
	xp = "#{popup_window_status_line_x}";
	p = format_expand(ft, xp);
	n = strtol(p, NULL, 10);
	if (n + w >= tty->sx)
	n = tty->sx - w;
	else if (n < 0)
	n = 0;
	*px = n;
	log_debug("%s: -x: %s = %s = %u (-w %u)", __func__, xp, p, *px, w);
	free(p);

	/* Expand vertical position */
	yp = args_get(args, 'y');
	if (yp == NULL \|\| strcmp(yp, "C") == 0)
	yp = "#{popup_centre_y}";
	else if (strcmp(yp, "P") == 0)
	yp = "#{popup_pane_bottom}";
	else if (strcmp(yp, "M") == 0)
	yp = "#{popup_mouse_top}";
	else if (strcmp(yp, "S") == 0)
	yp = "#{popup_status_line_y}";
	else if (strcmp(yp, "W") == 0)
	yp = "#{popup_window_status_line_y}";
	p = format_expand(ft, yp);
	n = strtol(p, NULL, 10);
	if (n < h)
	n = 0;
	else
	n -= h;
	if (n + h >= tty->sy)
	n = tty->sy - h;
	else if (n < 0)
	n = 0;
	*py = n;
	log_debug("%s: -y: %s = %s = %u (-h %u)", __func__, yp, p, *py, h);
	free(p);

	return (1);
	}

	static enum cmd_retval
	cmd_display_menu_exec(struct cmd self, struct cmdq_item item)
	{
	struct args *args = cmd_get_args(self);
	struct cmd_find_state *target = cmdq_get_target(item);
	struct key_event *event = cmdq_get_event(item);
	struct client *tc = cmdq_get_target_client(item);
	struct menu *menu = NULL;
	struct menu_item menu_item;
	const char key, name;
	char *title;
	int flags = 0;
	u_int px, py, i, count = args_count(args);

	if (tc->overlay_draw != NULL)
	return (CMD_RETURN_NORMAL);

	if (args_has(args, 'T'))
	title = format_single_from_target(item, args_get(args, 'T'));
	else
	title = xstrdup("");
	menu = menu_create(title);

	for (i = 0; i != count; /* nothing */) {
	name = args_string(args, i++);
	if (*name == '\0') {
	menu_add_item(menu, NULL, item, tc, target);
	continue;
	}

	if (count - i < 2) {
	cmdq_error(item, "not enough arguments");
	free(title);
	menu_free(menu);
	return (CMD_RETURN_ERROR);
	}
	key = args_string(args, i++);

	menu_item.name = name;
	menu_item.key = key_string_lookup_string(key);
	menu_item.command = args_string(args, i++);

	menu_add_item(menu, &menu_item, item, tc, target);
	}
	free(title);
	if (menu == NULL) {
	cmdq_error(item, "invalid menu arguments");
	return (CMD_RETURN_ERROR);
	}
	if (menu->count == 0) {
	menu_free(menu);
	return (CMD_RETURN_NORMAL);
	}
	if (!cmd_display_menu_get_position(tc, item, args, &px, &py,
	menu->width + 4, menu->count + 2)) {
	menu_free(menu);
	return (CMD_RETURN_NORMAL);
	}

	if (args_has(args, 'O'))
	flags \|= MENU_STAYOPEN;
	if (!event->m.valid)
	flags \|= MENU_NOMOUSE;
	if (menu_display(menu, flags, item, px, py, tc, target, NULL,
	NULL) != 0)
	return (CMD_RETURN_NORMAL);
	return (CMD_RETURN_WAIT);
	}

	static enum cmd_retval
	cmd_display_popup_exec(struct cmd self, struct cmdq_item item)
	{
	struct args *args = cmd_get_args(self);
	struct cmd_find_state *target = cmdq_get_target(item);
	struct session *s = target->s;
	struct client *tc = cmdq_get_target_client(item);
	struct tty *tty = &tc->tty;
	const char value, shell, *shellcmd = NULL;
	char cwd, cause = NULL, *argv = NULL, title;
	int flags = 0, argc = 0;
	enum box_lines lines = BOX_LINES_DEFAULT;
	u_int px, py, w, h, count = args_count(args);
	struct args_value *av;
	struct environ *env = NULL;
	struct options *o = s->curw->window->options;
	struct options_entry *oe;

	if (args_has(args, 'C')) {
	server_client_clear_overlay(tc);
	return (CMD_RETURN_NORMAL);
	}
	if (tc->overlay_draw != NULL)
	return (CMD_RETURN_NORMAL);

	h = tty->sy / 2;
	if (args_has(args, 'h')) {
	h = args_percentage(args, 'h', 1, tty->sy, tty->sy, &cause);
	if (cause != NULL) {
	cmdq_error(item, "height %s", cause);
	free(cause);
	return (CMD_RETURN_ERROR);
	}
	}

	w = tty->sx / 2;
	if (args_has(args, 'w')) {
	w = args_percentage(args, 'w', 1, tty->sx, tty->sx, &cause);
	if (cause != NULL) {
	cmdq_error(item, "width %s", cause);
	free(cause);
	return (CMD_RETURN_ERROR);
	}
	}

	if (w > tty->sx)
	w = tty->sx;
	if (h > tty->sy)
	h = tty->sy;
	if (!cmd_display_menu_get_position(tc, item, args, &px, &py, w, h))
	return (CMD_RETURN_NORMAL);

	value = args_get(args, 'b');
	if (args_has(args, 'B'))
	lines = BOX_LINES_NONE;
	else if (value != NULL) {
	oe = options_get(o, "popup-border-lines");
	lines = options_find_choice(options_table_entry(oe), value,
	&cause);
	if (cause != NULL) {
	cmdq_error(item, "popup-border-lines %s", cause);
	free(cause);
	return (CMD_RETURN_ERROR);
	}
	}

	value = args_get(args, 'd');
	if (value != NULL)
	cwd = format_single_from_target(item, value);
	else
	cwd = xstrdup(server_client_get_cwd(tc, s));
	if (count == 0)
	shellcmd = options_get_string(s->options, "default-command");
	else if (count == 1)
	shellcmd = args_string(args, 0);
	if (count <= 1 && (shellcmd == NULL \|\| *shellcmd == '\0')) {
	shellcmd = NULL;
	shell = options_get_string(s->options, "default-shell");
	if (!checkshell(shell))
	shell = _PATH_BSHELL;
	cmd_append_argv(&argc, &argv, shell);
	} else
	args_to_vector(args, &argc, &argv);

	if (args_has(args, 'e') >= 1) {
	env = environ_create();
	av = args_first_value(args, 'e');
	while (av != NULL) {
	environ_put(env, av->string, 0);
	av = args_next_value(av);
	}
	}

	if (args_has(args, 'T'))
	title = format_single_from_target(item, args_get(args, 'T'));
	else
	title = xstrdup("");
	if (args_has(args, 'E') > 1)
	flags \|= POPUP_CLOSEEXITZERO;
	else if (args_has(args, 'E'))
	flags \|= POPUP_CLOSEEXIT;
	if (popup_display(flags, lines, item, px, py, w, h, env, shellcmd, argc,
	argv, cwd, title, tc, s, NULL, NULL) != 0) {
	cmd_free_argv(argc, argv);
	if (env != NULL)
	environ_free(env);
	free(title);
	return (CMD_RETURN_NORMAL);
	}
	if (env != NULL)
	environ_free(env);
	free(title);
	cmd_free_argv(argc, argv);
	return (CMD_RETURN_WAIT);
	}