2 * Copyright (C) 2009 Sony Computer Entertainment Inc.
3 * Copyright 2009 Sony Corp.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; version 2 of the License.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #include "talloc/talloc.h"
28 static struct ked *ked_from_scr(struct nc_scr *scr)
32 assert(scr->sig == pb_ked_sig);
33 ked = (struct ked *)((char *)scr - (size_t)&((struct ked *)0)->scr);
34 assert(ked->scr.sig == pb_ked_sig);
38 static struct ked *ked_from_arg(void *arg)
40 struct ked *ked = arg;
42 assert(ked->scr.sig == pb_ked_sig);
47 * ked_move_cursor - Move the cursor, setting correct attributes.
48 * @req: An ncurses request or char to send to form_driver().
51 static int ked_move_cursor(struct ked *ked, int req)
55 wchgat(ked->scr.sub_ncw, 1, ked_attr_field_selected, 0, 0);
56 result = form_driver(ked->ncf, req);
57 wchgat(ked->scr.sub_ncw, 1, ked->attr_cursor, 0, 0);
58 wrefresh(ked->scr.main_ncw);
63 * ked_insert_mode_set - Set the insert mode.
66 static void ked_insert_mode_set(struct ked *ked, int req)
70 ked->attr_cursor = ked_attr_cursor_ins;
73 ked->attr_cursor = ked_attr_cursor_ovl;
76 assert(0 && "bad req");
79 ked_move_cursor(ked, req);
83 * ked_insert_mode_tog - Toggle the insert mode.
86 static void ked_insert_mode_tog(struct ked *ked)
88 if (ked->attr_cursor == ked_attr_cursor_ins)
89 ked_insert_mode_set(ked, REQ_OVL_MODE);
91 ked_insert_mode_set(ked, REQ_INS_MODE);
95 * ked_move_field - Move selected field, setting correct attributes.
96 * @req: An ncurses request to send to form_driver().
99 static int ked_move_field(struct ked *ked, int req)
103 set_field_back(current_field(ked->ncf), ked_attr_field_normal);
104 result = form_driver(ked->ncf, req);
105 set_field_back(current_field(ked->ncf), ked_attr_field_selected);
106 ked_move_cursor(ked, REQ_END_FIELD);
110 static int ked_post(struct nc_scr *scr)
112 struct ked *ked = ked_from_scr(scr);
116 nc_scr_frame_draw(scr);
117 ked_move_field(ked, REQ_FIRST_FIELD);
118 ked_move_field(ked, REQ_END_FIELD);
119 ked_insert_mode_set(ked, REQ_INS_MODE);
121 redrawwin(ked->scr.main_ncw);
122 wrefresh(ked->scr.main_ncw);
127 static int ked_unpost(struct nc_scr *scr)
129 return unpost_form(ked_from_scr(scr)->ncf);
132 static void ked_resize(struct nc_scr *scr)
134 /* FIXME: forms can't be resized, need to recreate here */
140 * ked_chomp - Eat leading and trailing WS.
143 static char *ked_chomp(char *s)
147 char *const s_end = s + strlen(s);
149 for (; s < s_end; s++)
150 if (*s != ' ' && *s != '\t')
154 for (++s; s < s_end; s++)
155 if (*s != ' ' && *s != '\t')
161 static struct pb_kexec_data *ked_prepare_data(struct ked *ked)
163 struct pb_kexec_data *kd;
166 kd = talloc(ked, struct pb_kexec_data);
171 s = ked_chomp(field_buffer(ked->fields[0], 0));
172 kd->image = *s ? talloc_strdup(kd, s) : NULL;
174 s = ked_chomp(field_buffer(ked->fields[1], 0));
175 kd->initrd = *s ? talloc_strdup(kd, s) : NULL;
177 s = ked_chomp(field_buffer(ked->fields[2], 0));
178 kd->args = *s ? talloc_strdup(kd, s) : NULL;
184 * ked_process_key - Process a user keystroke.
186 * Called from the cui via the scr:process_key method.
189 static void ked_process_key(struct nc_scr *scr)
191 struct ked *ked = ked_from_scr(scr);
192 struct pb_kexec_data *kd;
200 /* DBGS("%d (%o)\n", c, c); */
204 ked_move_cursor(ked, c);
209 ked->on_exit(ked, ked_cancel, NULL);
214 form_driver(ked->ncf, REQ_VALIDATION);
215 kd = ked_prepare_data(ked);
216 ked->on_exit(ked, ked_update, kd);
222 ked_insert_mode_tog(ked);
227 ked_move_field(ked, REQ_FIRST_FIELD);
230 ked_move_field(ked, REQ_LAST_FIELD);
233 ked_move_field(ked, REQ_NEXT_FIELD);
236 ked_move_field(ked, REQ_PREV_FIELD);
241 ked_move_cursor(ked, REQ_BEG_FIELD);
244 ked_move_cursor(ked, REQ_END_FIELD);
247 ked_move_cursor(ked, REQ_LEFT_CHAR);
250 ked_move_cursor(ked, REQ_RIGHT_CHAR);
253 if (ked_move_cursor(ked, REQ_LEFT_CHAR) == E_OK)
254 ked_move_cursor(ked, REQ_DEL_CHAR);
257 ked_move_cursor(ked, REQ_DEL_CHAR);
264 * ked_destructor - The talloc destructor for a ked.
267 static int ked_destructor(void *arg)
269 struct ked *ked = ked_from_arg(arg);
272 for (f = ked->fields; *f; f++)
276 ked->scr.sig = pb_removed_sig;
281 static FIELD *ked_setup_field(unsigned int y, unsigned int x, char *str)
285 f = new_field(1, COLS - 1 - x, y, x, 0, 0);
286 field_opts_off(f, O_STATIC | O_WRAP);
287 set_max_field(f, 256);
288 set_field_buffer(f, 0, str);
289 set_field_status(f, 0);
293 static FIELD *ked_setup_label(unsigned int y, unsigned int x, char *str)
297 f = new_field(1, strlen(str), y, x, 0, 0);
298 field_opts_off(f, O_ACTIVE);
299 set_field_buffer(f, 0, str);
303 struct ked *ked_init(void *ui_ctx, const struct pb_kexec_data *kd,
304 void (*on_exit)(struct ked *, enum ked_result, struct pb_kexec_data *))
308 pb_log("%s: image: '%s'\n", __func__, kd->image);
309 pb_log("%s: initrd: '%s'\n", __func__, kd->initrd);
310 pb_log("%s: args: '%s'\n", __func__, kd->args);
314 ked = talloc_zero(ui_ctx, struct ked);
319 talloc_set_destructor(ked, ked_destructor);
321 nc_scr_init(&ked->scr, pb_ked_sig, 0, ui_ctx, ked_process_key,
322 ked_post, ked_unpost, ked_resize);
324 ked->scr.frame.title = talloc_strdup(ked, "Petitboot Option Editor");
325 ked->scr.frame.help = talloc_strdup(ked,
326 "ESC=cancel, Enter=accept");
328 ked->on_exit = on_exit;
330 ked->fields = talloc_array(ked, FIELD *, 7);
332 ked->fields[0] = ked_setup_field(0, 9, kd->image);
333 ked->fields[1] = ked_setup_field(1, 9, kd->initrd);
334 ked->fields[2] = ked_setup_field(2, 9, kd->args);
335 ked->fields[3] = ked_setup_label(0, 1, "image:");
336 ked->fields[4] = ked_setup_label(1, 1, "initrd:");
337 ked->fields[5] = ked_setup_label(2, 1, "args:");
338 ked->fields[6] = NULL;
340 ked->ncf = new_form(ked->fields);
342 set_form_win(ked->ncf, ked->scr.main_ncw);
343 set_form_sub(ked->ncf, ked->scr.sub_ncw);