payloads/bayou/menu.c

   1 /*
   2  * This file is part of the bayou project.
   3  *
   4  * Copyright (C) 2008 Advanced Micro Devices, Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 #include <libpayload.h>
  17 #include <curses.h>
  18 #include "bayou.h"
  19
  20 #define SCREEN_X 80
  21 #define SCREEN_Y 25
  22
  23 static int menu_width = 0;
  24 static struct payload *mpayloads[BAYOU_MAX_ENTRIES];
  25 static int m_entries = 0;
  26 static unsigned int selected = 0;
  27 static WINDOW *menuwin, *status;
  28
  29 void create_menu(void)
  30 {
  31         int i;
  32
  33         for (i = 0; i < bayoucfg.n_entries; i++) {
  34                 struct payload *p = &(bayoucfg.entries[i]);
  35                 char *name;
  36
  37                 if ((p->pentry.parent != 0) ||
  38                     (p->pentry.flags & BPT_FLAG_NOSHOW))
  39                         continue;
  40
  41                 mpayloads[m_entries++] = p;
  42
  43                 name = payload_get_name(p);
  44
  45                 if (strlen(name) > menu_width)
  46                         menu_width = strlen(name);
  47         }
  48
  49         menu_width += 4;
  50
  51         if (menu_width < 30)
  52                 menu_width = 30;
  53
  54         menuwin = newwin(m_entries + 3, menu_width,
  55                          (SCREEN_Y - (m_entries + 3)) / 2,
  56                          (SCREEN_X - menu_width) / 2);
  57 }
  58
  59 void draw_menu(void)
  60 {
  61         struct payload *s;
  62         int i;
  63
  64         wattrset(menuwin, COLOR_PAIR(3));
  65         wclear(menuwin);
  66         wborder(menuwin, ACS_VLINE, ACS_VLINE, ACS_HLINE, ACS_HLINE,
  67                 ACS_ULCORNER, ACS_URCORNER, ACS_LLCORNER, ACS_LRCORNER);
  68
  69         wattrset(menuwin, COLOR_PAIR(4) | A_BOLD);
  70         mvwprintw(menuwin, 0, (menu_width - 17) / 2, " Payload Chooser ");
  71
  72         wattrset(menuwin, COLOR_PAIR(3));
  73
  74         for (i = 0; i < m_entries; i++) {
  75                 char *name = payload_get_name(mpayloads[i]);
  76                 int col = (menu_width - (2 + strlen(name))) / 2;
  77
  78                 if (i == selected)
  79                         wattrset(menuwin, COLOR_PAIR(5) | A_BOLD);
  80                 else
  81                         wattrset(menuwin, COLOR_PAIR(3));
  82
  83                 mvwprintw(menuwin, 2 + i, col, name);
  84         }
  85
  86         s = mpayloads[selected];
  87
  88         wclear(status);
  89
  90         if (s->params[BAYOU_PARAM_DESC] != NULL) {
  91                 char buf[66];
  92                 int len = strnlen(s->params[BAYOU_PARAM_DESC], 65);
  93
  94                 snprintf(buf, 65, s->params[BAYOU_PARAM_DESC]);
  95                 buf[65] = 0;
  96
  97                 mvwprintw(status, 0, (80 - len) / 2, buf);
  98         }
  99
 100         wrefresh(menuwin);
 101         wrefresh(status);
 102 }
 103
 104 void loop(void)
 105 {
 106         int key;
 107
 108         while (1) {
 109                 key = getch();
 110
 111                 if (key == ERR)
 112                         continue;
 113
 114                 if (key == KEY_DOWN)
 115                         selected = (selected + 1) % m_entries;
 116                 else if (key == KEY_UP)
 117                         selected = (selected - 1) % m_entries;
 118                 else if (key == KEY_ENTER) {
 119                         run_payload(mpayloads[selected]);
 120                         clear();
 121                         refresh();
 122                 } else
 123                         continue;
 124
 125                 draw_menu();
 126         }
 127 }
 128
 129 void menu(void)
 130 {
 131         initscr();
 132
 133         init_pair(1, COLOR_WHITE, COLOR_RED);
 134         init_pair(2, COLOR_BLACK, COLOR_WHITE);
 135         init_pair(3, COLOR_BLACK, COLOR_WHITE);
 136         init_pair(4, COLOR_CYAN, COLOR_WHITE);
 137         init_pair(5, COLOR_WHITE, COLOR_RED);
 138
 139         wattrset(stdscr, COLOR_PAIR(1));
 140         wclear(stdscr);
 141
 142         status = newwin(1, 80, 24, 0);
 143         wattrset(status, COLOR_PAIR(2));
 144         wclear(status);
 145
 146         refresh();
 147
 148         create_menu();
 149         draw_menu();
 150
 151         loop();
 152 }