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')
155 for (; s < s_end; s++)
156 if (*s != ' ' && *s != '\t')
162 static struct pb_kexec_data *ked_prepare_data(struct ked *ked)
164 struct pb_kexec_data *kd;
167 kd = talloc(ked, struct pb_kexec_data);
172 s = ked_chomp(field_buffer(ked->fields[0], 0));
173 kd->image = *s ? talloc_strdup(kd, s) : NULL;
175 s = ked_chomp(field_buffer(ked->fields[1], 0));
176 kd->initrd = *s ? talloc_strdup(kd, s) : NULL;
178 s = ked_chomp(field_buffer(ked->fields[2], 0));
179 kd->args = *s ? talloc_strdup(kd, s) : NULL;
185 * ked_process_key - Process a user keystroke.
187 * Called from the cui via the scr:process_key method.
190 static void ked_process_key(struct nc_scr *scr)
192 struct ked *ked = ked_from_scr(scr);
193 struct pb_kexec_data *kd;
201 /* DBGS("%d (%o)\n", c, c); */
205 ked_move_cursor(ked, c);
210 ked->on_exit(ked, ked_cancel, NULL);
215 form_driver(ked->ncf, REQ_VALIDATION);
216 kd = ked_prepare_data(ked);
217 ked->on_exit(ked, ked_update, kd);
223 ked_insert_mode_tog(ked);
228 ked_move_field(ked, REQ_FIRST_FIELD);
231 ked_move_field(ked, REQ_LAST_FIELD);
234 ked_move_field(ked, REQ_NEXT_FIELD);
237 ked_move_field(ked, REQ_PREV_FIELD);
242 ked_move_cursor(ked, REQ_BEG_FIELD);
245 ked_move_cursor(ked, REQ_END_FIELD);
248 ked_move_cursor(ked, REQ_LEFT_CHAR);
251 ked_move_cursor(ked, REQ_RIGHT_CHAR);
254 if (ked_move_cursor(ked, REQ_LEFT_CHAR) == E_OK)
255 ked_move_cursor(ked, REQ_DEL_CHAR);
258 ked_move_cursor(ked, REQ_DEL_CHAR);
265 * ked_destructor - The talloc destructor for a ked.
268 static int ked_destructor(void *arg)
270 struct ked *ked = ked_from_arg(arg);
273 for (f = ked->fields; *f; f++)
277 ked->scr.sig = pb_removed_sig;
282 static FIELD *ked_setup_field(unsigned int y, unsigned int x, char *str)
286 f = new_field(1, COLS - 1 - x, y, x, 0, 0);
287 field_opts_off(f, O_STATIC | O_WRAP);
288 set_max_field(f, 256);
289 set_field_buffer(f, 0, str);
290 set_field_status(f, 0);
294 static FIELD *ked_setup_label(unsigned int y, unsigned int x, char *str)
298 f = new_field(1, strlen(str), y, x, 0, 0);
299 field_opts_off(f, O_ACTIVE);
300 set_field_buffer(f, 0, str);
304 struct ked *ked_init(void *ui_ctx, const struct pb_kexec_data *kd,
305 void (*on_exit)(struct ked *, enum ked_result, struct pb_kexec_data *))
309 pb_log("%s: image: '%s'\n", __func__, kd->image);
310 pb_log("%s: initrd: '%s'\n", __func__, kd->initrd);
311 pb_log("%s: args: '%s'\n", __func__, kd->args);
315 ked = talloc_zero(ui_ctx, struct ked);
320 talloc_set_destructor(ked, ked_destructor);
322 nc_scr_init(&ked->scr, pb_ked_sig, 0, ui_ctx, ked_process_key,
323 ked_post, ked_unpost, ked_resize);
325 ked->scr.frame.title = talloc_strdup(ked, "Petitboot Option Editor");
326 ked->scr.frame.help = talloc_strdup(ked,
327 "ESC=cancel, Enter=accept");
329 ked->on_exit = on_exit;
331 ked->fields = talloc_array(ked, FIELD *, 7);
333 ked->fields[0] = ked_setup_field(0, 9, kd->image);
334 ked->fields[1] = ked_setup_field(1, 9, kd->initrd);
335 ked->fields[2] = ked_setup_field(2, 9, kd->args);
336 ked->fields[3] = ked_setup_label(0, 1, "image:");
337 ked->fields[4] = ked_setup_label(1, 1, "initrd:");
338 ked->fields[5] = ked_setup_label(2, 1, "args:");
339 ked->fields[6] = NULL;
341 ked->ncf = new_form(ked->fields);
343 set_form_win(ked->ncf, ked->scr.main_ncw);
344 set_form_sub(ked->ncf, ked->scr.sub_ncw);