Annotation of src/usr.bin/tmux/cmd-display-menu.c, Revision 1.1
1.1 ! nicm 1: /* $OpenBSD$ */
! 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_from_string(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: }
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