git.ozlabs.org Git - petitboot/blob - ui/ncurses/nc-config.c

   1 /*
   2  *  Copyright (C) 2013 IBM Corporation
   3  *
   4  *  This program is free software; you can redistribute it and/or modify
   5  *  it under the terms of the GNU General Public License as published by
   6  *  the Free Software Foundation; version 2 of the License.
   7  *
   8  *  This program is distributed in the hope that it will be useful,
   9  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *  GNU General Public License for more details.
  12  *
  13  *  You should have received a copy of the GNU General Public License
  14  *  along with this program; if not, write to the Free Software
  15  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  */
  17
  18 #define _GNU_SOURCE
  19
  20
  21 #include <string.h>
  22
  23 #include <talloc/talloc.h>
  24 #include <types/types.h>
  25 #include <log/log.h>
  26
  27 #include "config.h"
  28 #include "nc-cui.h"
  29 #include "nc-config.h"
  30 #include "nc-widgets.h"
  31
  32 #define N_FIELDS        9
  33
  34 struct config_screen {
  35         struct nc_scr           scr;
  36         struct cui              *cui;
  37         struct nc_widgetset     *widgetset;
  38         bool                    exit;
  39         void                    (*on_exit)(struct cui *);
  40
  41         int                     label_x;
  42         int                     field_x;
  43
  44         struct {
  45                 struct nc_widget_checkbox       *autoboot_f;
  46                 struct nc_widget_label          *autoboot_l;
  47                 struct nc_widget_textbox        *timeout_f;
  48                 struct nc_widget_label          *timeout_l;
  49
  50                 struct nc_widget_label          *network_l;
  51                 struct nc_widget_label          *iface_l;
  52                 struct nc_widget_select         *iface_f;
  53
  54                 struct nc_widget_button         *ok_b;
  55                 struct nc_widget_button         *cancel_b;
  56         } widgets;
  57 };
  58
  59 static struct config_screen *config_screen_from_scr(struct nc_scr *scr)
  60 {
  61         struct config_screen *config_screen;
  62
  63         assert(scr->sig == pb_config_screen_sig);
  64         config_screen = (struct config_screen *)
  65                 ((char *)scr - (size_t)&((struct config_screen *)0)->scr);
  66         assert(config_screen->scr.sig == pb_config_screen_sig);
  67         return config_screen;
  68 }
  69
  70 static void config_screen_process_key(struct nc_scr *scr, int key)
  71 {
  72         struct config_screen *screen = config_screen_from_scr(scr);
  73         bool handled;
  74
  75         handled = widgetset_process_key(screen->widgetset, key);
  76         if (screen->exit)
  77                 screen->on_exit(screen->cui);
  78         else if (handled)
  79                 wrefresh(screen->scr.main_ncw);
  80 }
  81
  82 static void config_screen_resize(struct nc_scr *scr)
  83 {
  84         struct config_screen *screen = config_screen_from_scr(scr);
  85         (void)screen;
  86 }
  87
  88 static int config_screen_post(struct nc_scr *scr)
  89 {
  90         struct config_screen *screen = config_screen_from_scr(scr);
  91         widgetset_post(screen->widgetset);
  92         nc_scr_frame_draw(scr);
  93         wrefresh(scr->main_ncw);
  94         return 0;
  95 }
  96
  97 static int config_screen_unpost(struct nc_scr *scr)
  98 {
  99         struct config_screen *screen = config_screen_from_scr(scr);
 100         widgetset_unpost(screen->widgetset);
 101         return 0;
 102 }
 103
 104 struct nc_scr *config_screen_scr(struct config_screen *screen)
 105 {
 106         return &screen->scr;
 107 }
 108
 109 static void ok_click(void *arg)
 110 {
 111         struct config_screen *screen = arg;
 112         /* todo: save config */
 113         screen->on_exit(screen->cui);
 114 }
 115
 116 static void cancel_click(void *arg)
 117 {
 118         struct config_screen *screen = arg;
 119         screen->exit = true;
 120 }
 121
 122 static int layout_pair(struct config_screen *screen, int y,
 123                 struct nc_widget_label *label,
 124                 struct nc_widget *field)
 125 {
 126         struct nc_widget *label_w = widget_label_base(label);
 127         widget_move(label_w, y, screen->label_x);
 128         widget_move(field, y, screen->field_x);
 129         return max(widget_height(label_w), widget_height(field));
 130 }
 131
 132 static void config_screen_layout_widgets(struct config_screen *screen)
 133 {
 134         int y;
 135
 136         y = 1;
 137
 138         y += layout_pair(screen, y, screen->widgets.autoboot_l,
 139                         widget_checkbox_base(screen->widgets.autoboot_f));
 140
 141         y += layout_pair(screen, y, screen->widgets.timeout_l,
 142                         widget_textbox_base(screen->widgets.timeout_f));
 143
 144         y++;
 145
 146         widget_move(widget_button_base(screen->widgets.ok_b),
 147                         y, screen->field_x);
 148         widget_move(widget_button_base(screen->widgets.cancel_b),
 149                         y, screen->field_x + 10);
 150 }
 151
 152 static void config_screen_setup_widgets(struct config_screen *screen,
 153                 const struct config *config,
 154                 const struct system_info *sysinfo)
 155 {
 156         struct nc_widgetset *set = screen->widgetset;
 157         char *str;
 158
 159         (void)sysinfo;
 160
 161         build_assert(sizeof(screen->widgets) / sizeof(struct widget *)
 162                         == N_FIELDS);
 163
 164         screen->widgets.autoboot_l = widget_new_label(set, 0, 0, "Autoboot:");
 165         screen->widgets.autoboot_f = widget_new_checkbox(set, 0, 0,
 166                                         config->autoboot_enabled);
 167
 168         str = talloc_asprintf(screen, "%d", config->autoboot_timeout_sec);
 169         screen->widgets.timeout_l = widget_new_label(set, 0, 0, "Timeout:");
 170         screen->widgets.timeout_f = widget_new_textbox(set, 0, 0, 5, str);
 171
 172         screen->widgets.ok_b = widget_new_button(set, 0, 0, 6, "OK",
 173                         ok_click, screen);
 174         screen->widgets.cancel_b = widget_new_button(set, 0, 0, 6, "Cancel",
 175                         cancel_click, screen);
 176
 177 }
 178
 179 struct config_screen *config_screen_init(struct cui *cui,
 180                 const struct config *config,
 181                 const struct system_info *sysinfo,
 182                 void (*on_exit)(struct cui *))
 183 {
 184         struct config_screen *screen;
 185
 186         screen = talloc_zero(cui, struct config_screen);
 187         nc_scr_init(&screen->scr, pb_config_screen_sig, 0,
 188                         cui, config_screen_process_key,
 189                         config_screen_post, config_screen_unpost,
 190                         config_screen_resize);
 191
 192         screen->cui = cui;
 193         screen->on_exit = on_exit;
 194         screen->label_x = 2;
 195         screen->field_x = 16;
 196
 197         screen->scr.frame.ltitle = talloc_strdup(screen,
 198                         "Petitboot System Configuration");
 199         screen->scr.frame.rtitle = NULL;
 200         screen->scr.frame.help = talloc_strdup(screen,
 201                         "tab=next, shift+tab=previous");
 202         nc_scr_frame_draw(&screen->scr);
 203
 204         screen->widgetset = widgetset_create(screen, screen->scr.main_ncw,
 205                         screen->scr.sub_ncw);
 206         config_screen_setup_widgets(screen, config, sysinfo);
 207         config_screen_layout_widgets(screen);
 208
 209         wrefresh(screen->scr.main_ncw);
 210         scrollok(screen->scr.sub_ncw, true);
 211
 212         return screen;
 213 }