1 /* $OpenBSD: cmd-display-menu.c,v 1.2 2019/05/12 07:27:08 nicm Exp $ */ 2 3 /* 4 * Copyright (c) 2019 Nicholas Marriott <nicholas.marriott@gmail.com> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER 15 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 16 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/types.h> 20 21 #include <stdlib.h> 22 #include <string.h> 23 24 #include "tmux.h" 25 26 /* 27 * Display a menu on a client. 28 */ 29 30 static enum cmd_retval cmd_display_menu_exec(struct cmd *, 31 struct cmdq_item *); 32 33 const struct cmd_entry cmd_display_menu_entry = { 34 .name = "display-menu", 35 .alias = "menu", 36 37 .args = { "c:FM:t:T:x:y:", 0, 0 }, 38 .usage = "[-F] [-c target-client] [-M menu] " CMD_TARGET_PANE_USAGE " " 39 "[-T title] [-x position] [-y position]", 40 41 .target = { 't', CMD_FIND_PANE, 0 }, 42 43 .flags = CMD_AFTERHOOK, 44 .exec = cmd_display_menu_exec 45 }; 46 47 static enum cmd_retval 48 cmd_display_menu_exec(struct cmd *self, struct cmdq_item *item) 49 { 50 struct args *args = self->args; 51 struct client *c; 52 struct session *s = item->target.s; 53 struct winlink *wl = item->target.wl; 54 struct window_pane *wp = item->target.wp; 55 struct cmd_find_state *fs = &item->target; 56 struct menu *menu = NULL; 57 struct style_range *sr; 58 const char *string, *xp, *yp; 59 int at, flags; 60 u_int px, py, ox, oy, sx, sy; 61 char *title; 62 63 if ((c = cmd_find_client(item, args_get(args, 'c'), 0)) == NULL) 64 return (CMD_RETURN_ERROR); 65 if (c->overlay_draw != NULL) 66 return (CMD_RETURN_NORMAL); 67 at = status_at_line(c); 68 69 string = args_get(args, 'M'); 70 if (string == NULL) { 71 cmdq_error(item, "no menu specified"); 72 return (CMD_RETURN_ERROR); 73 } 74 if (args_has(args, 'F')) 75 string = format_single(NULL, string, c, s, wl, wp); 76 else 77 string = xstrdup(string); 78 if (args_has(args, 'T')) 79 title = format_single(NULL, args_get(args, 'T'), c, s, wl, wp); 80 else 81 title = xstrdup(""); 82 menu = menu_create(string, c, fs, title); 83 free(title); 84 if (menu == NULL) { 85 cmdq_error(item, "invalid menu %s", string); 86 return (CMD_RETURN_ERROR); 87 } 88 if (menu->count == 0) { 89 menu_free(menu); 90 return (CMD_RETURN_NORMAL); 91 } 92 93 xp = args_get(args, 'x'); 94 if (xp == NULL) 95 px = 0; 96 else if (strcmp(xp, "R") == 0) 97 px = c->tty.sx - 1; 98 else if (strcmp(xp, "P") == 0) { 99 tty_window_offset(&c->tty, &ox, &oy, &sx, &sy); 100 if (wp->xoff >= ox) 101 px = wp->xoff - ox; 102 else 103 px = 0; 104 } else if (strcmp(xp, "M") == 0 && item->shared->mouse.valid) { 105 if (item->shared->mouse.x > (menu->width + 4) / 2) 106 px = item->shared->mouse.x - (menu->width + 4) / 2; 107 else 108 px = 0; 109 } 110 else if (strcmp(xp, "W") == 0) { 111 if (at == -1) 112 px = 0; 113 else { 114 TAILQ_FOREACH(sr, &c->status.entries[0].ranges, entry) { 115 if (sr->type != STYLE_RANGE_WINDOW) 116 continue; 117 if (sr->argument == (u_int)wl->idx) 118 break; 119 } 120 if (sr != NULL) 121 px = sr->start; 122 else 123 px = 0; 124 } 125 } else 126 px = strtoul(xp, NULL, 10); 127 if (px + menu->width + 4 >= c->tty.sx) 128 px = c->tty.sx - menu->width - 4; 129 130 yp = args_get(args, 'y'); 131 if (yp == NULL) 132 py = 0; 133 else if (strcmp(yp, "P") == 0) { 134 tty_window_offset(&c->tty, &ox, &oy, &sx, &sy); 135 if (wp->yoff + wp->sy >= oy) 136 py = wp->yoff + wp->sy - oy; 137 else 138 py = 0; 139 } else if (strcmp(yp, "M") == 0 && item->shared->mouse.valid) 140 py = item->shared->mouse.y + menu->count + 2; 141 else if (strcmp(yp, "S") == 0) { 142 if (at == -1) 143 py = c->tty.sy; 144 else if (at == 0) 145 py = status_line_size(c) + menu->count + 2; 146 else 147 py = at; 148 } else 149 py = strtoul(yp, NULL, 10); 150 if (py < menu->count + 2) 151 py = 0; 152 else 153 py -= menu->count + 2; 154 if (py + menu->count + 2 >= c->tty.sy) 155 py = c->tty.sy - menu->count - 2; 156 157 flags = 0; 158 if (!item->shared->mouse.valid) 159 flags |= MENU_NOMOUSE; 160 if (menu_display(menu, flags, item, px, py, c, fs, NULL, NULL) != 0) 161 return (CMD_RETURN_NORMAL); 162 return (CMD_RETURN_WAIT); 163 } 164