tmux/cmd-display-menu.c

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/* $OpenBSD$ */
/*
* 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 <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: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 " "
"[-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);
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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;
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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);
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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;
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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;
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, '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, tc, s, NULL, NULL) != 0) {
cmd_free_argv(argc, argv);
if (env != NULL)
environ_free(env);
return (CMD_RETURN_NORMAL);
}
if (env != NULL)
environ_free(env);
cmd_free_argv(argc, argv);
return (CMD_RETURN_WAIT);
}