--- /dev/null
+/*
+ * Copyright (C) 2009 Sony Computer Entertainment Inc.
+ * Copyright 2009 Sony Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#define _GNU_SOURCE
+
+#include <assert.h>
+#include <string.h>
+
+#include "log/log.h"
+#include "talloc/talloc.h"
+#include "nc-ked.h"
+
+static struct ked *ked_from_scr(struct nc_scr *scr)
+{
+ struct ked *ked;
+
+ assert(scr->sig == pb_ked_sig);
+ ked = (struct ked *)((char *)scr - (size_t)&((struct ked *)0)->scr);
+ assert(ked->scr.sig == pb_ked_sig);
+ return ked;
+}
+
+static struct ked *ked_from_arg(void *arg)
+{
+ struct ked *ked = arg;
+
+ assert(ked->scr.sig == pb_ked_sig);
+ return ked;
+}
+
+/**
+ * ked_move_cursor - Move the cursor, setting correct attributes.
+ * @req: An ncurses request or char to send to form_driver().
+ */
+
+static void ked_move_cursor(struct ked *ked, int req)
+{
+ wchgat(ked->scr.sub_ncw, 1, ked_attr_field_selected, 0, 0);
+ form_driver(ked->ncf, req);
+ wchgat(ked->scr.sub_ncw, 1, ked->attr_cursor, 0, 0);
+ wrefresh(ked->scr.main_ncw);
+}
+
+/**
+ * ked_insert_mode_set - Set the insert mode.
+ */
+
+static void ked_insert_mode_set(struct ked *ked, int req)
+{
+ switch (req) {
+ case REQ_INS_MODE:
+ ked->attr_cursor = ked_attr_cursor_ins;
+ break;
+ case REQ_OVL_MODE:
+ ked->attr_cursor = ked_attr_cursor_ovl;
+ break;
+ default:
+ assert(0 && "bad req");
+ break;
+ }
+ ked_move_cursor(ked, req);
+}
+
+/**
+ * ked_insert_mode_tog - Toggle the insert mode.
+ */
+
+static void ked_insert_mode_tog(struct ked *ked)
+{
+ if (ked->attr_cursor == ked_attr_cursor_ins)
+ ked_insert_mode_set(ked, REQ_OVL_MODE);
+ else
+ ked_insert_mode_set(ked, REQ_INS_MODE);
+}
+
+/**
+ * ked_move_field - Move selected field, setting correct attributes.
+ * @req: An ncurses request to send to form_driver().
+ */
+
+static void ked_move_field(struct ked *ked, int req)
+{
+ set_field_back(current_field(ked->ncf), ked_attr_field_normal);
+ form_driver(ked->ncf, req);
+ set_field_back(current_field(ked->ncf), ked_attr_field_selected);
+ ked_move_cursor(ked, REQ_END_FIELD);
+}
+
+static int ked_post(struct nc_scr *scr)
+{
+ struct ked *ked = ked_from_scr(scr);
+
+ post_form(ked->ncf);
+
+ nc_scr_frame_draw(scr);
+ ked_move_field(ked, REQ_FIRST_FIELD);
+ ked_move_field(ked, REQ_END_FIELD);
+ ked_insert_mode_set(ked, REQ_INS_MODE);
+
+ redrawwin(ked->scr.main_ncw);
+ wrefresh(ked->scr.main_ncw);
+
+ return 0;
+}
+
+static int ked_unpost(struct nc_scr *scr)
+{
+ return unpost_form(ked_from_scr(scr)->ncf);
+}
+
+static void ked_resize(struct nc_scr *scr)
+{
+ /* FIXME: forms can't be resized, need to recreate here */
+ ked_unpost(scr);
+ ked_post(scr);
+}
+
+/**
+ * ked_chomp - Eat leading and trailing WS.
+ */
+
+static char *ked_chomp(char *s)
+{
+ char *start;
+ char *end;
+ char *const s_end = s + strlen(s);
+
+ for (; s < s_end; s++)
+ if (*s != ' ' && *s != '\t')
+ break;
+ start = s;
+
+ for (++s; s < s_end; s++)
+ if (*s != ' ' && *s != '\t')
+ end = s;
+ *(end + 1) = 0;
+ return start;
+}
+
+static struct pb_kexec_data *ked_prepare_data(struct ked *ked)
+{
+ struct pb_kexec_data *kd;
+ char *s;
+
+ kd = talloc(ked, struct pb_kexec_data);
+
+ if (!kd)
+ return NULL;
+
+ s = ked_chomp(field_buffer(ked->fields[0], 0));
+ kd->image = *s ? talloc_strdup(kd, s) : NULL;
+
+ s = ked_chomp(field_buffer(ked->fields[1], 0));
+ kd->initrd = *s ? talloc_strdup(kd, s) : NULL;
+
+ s = ked_chomp(field_buffer(ked->fields[2], 0));
+ kd->args = *s ? talloc_strdup(kd, s) : NULL;
+
+ return kd;
+}
+
+/**
+ * ked_process_key - Process a user keystroke.
+ *
+ * Called from the cui via the scr:process_key method.
+ */
+
+static void ked_process_key(struct nc_scr *scr)
+{
+ struct ked *ked = ked_from_scr(scr);
+
+ while (1) {
+ int c = getch();
+
+ switch (c) {
+ default:
+ ked_move_cursor(ked, c);
+ break;
+ case ERR:
+ return;
+
+ /* hot keys */
+ case 2: { /* CTRL-B */
+ struct pb_kexec_data *kd;
+
+ form_driver(ked->ncf, REQ_VALIDATION);
+ kd = ked_prepare_data(ked);
+ ked->on_exit(ked, ked_boot, kd);
+ nc_flush_keys();
+ return;
+ }
+ case 27: /* ESC */
+ ked->on_exit(ked, ked_cancel, NULL);
+ nc_flush_keys();
+ return;
+ case '\n':
+ case '\r': {
+ struct pb_kexec_data *kd;
+
+ form_driver(ked->ncf, REQ_VALIDATION);
+ kd = ked_prepare_data(ked);
+ ked->on_exit(ked, ked_update, kd);
+ nc_flush_keys();
+ return;
+ }
+
+ /* insert mode */
+ case KEY_IC:
+ ked_insert_mode_tog(ked);
+ break;
+
+ /* form nav */
+ case KEY_PPAGE:
+ ked_move_field(ked, REQ_FIRST_FIELD);
+ break;
+ case KEY_NPAGE:
+ ked_move_field(ked, REQ_LAST_FIELD);
+ break;
+ case KEY_DOWN:
+ ked_move_field(ked, REQ_NEXT_FIELD);
+ break;
+ case KEY_UP:
+ ked_move_field(ked, REQ_PREV_FIELD);
+ break;
+
+ /* field nav */
+ case KEY_HOME:
+ ked_move_cursor(ked, REQ_BEG_FIELD);
+ break;
+ case KEY_END:
+ ked_move_cursor(ked, REQ_END_FIELD);
+ break;
+ case KEY_LEFT:
+ ked_move_cursor(ked, REQ_LEFT_CHAR);
+ break;
+ case KEY_RIGHT:
+ ked_move_cursor(ked, REQ_RIGHT_CHAR);
+ break;
+ case KEY_BACKSPACE:
+ ked_move_cursor(ked, REQ_LEFT_CHAR);
+ ked_move_cursor(ked, REQ_DEL_CHAR);
+ break;
+ case KEY_DC:
+ ked_move_cursor(ked, REQ_DEL_CHAR);
+ break;
+ }
+ }
+}
+
+/**
+ * ked_destructor - The talloc destructor for a ked.
+ */
+
+static int ked_destructor(void *arg)
+{
+ struct ked *ked = ked_from_arg(arg);
+ FIELD **f;
+
+ for (f = ked->fields; *f; f++)
+ free_field(*f);
+
+ free_form(ked->ncf);
+ ked->scr.sig = pb_removed_sig;
+
+ return 0;
+}
+
+static FIELD *ked_setup_field(unsigned int y, unsigned int x, char *str)
+{
+ FIELD *f;
+
+ f = new_field(1, COLS - 1 - x, y, x, 0, 0);
+ field_opts_off(f, O_STATIC | O_WRAP);
+ set_max_field(f, 256);
+ set_field_buffer(f, 0, str);
+ set_field_status(f, 0);
+ return f;
+}
+
+static FIELD *ked_setup_label(unsigned int y, unsigned int x, char *str)
+{
+ FIELD *f;
+
+ f = new_field(1, strlen(str), y, x, 0, 0);
+ field_opts_off(f, O_ACTIVE);
+ set_field_buffer(f, 0, str);
+ return f;
+}
+
+struct ked *ked_init(void *ui_ctx, const struct pb_kexec_data *kd,
+ void (*on_exit)(struct ked *, enum ked_result, struct pb_kexec_data *))
+{
+ struct ked *ked;
+
+ pb_log("%s: image: '%s'\n", __func__, kd->image);
+ pb_log("%s: initrd: '%s'\n", __func__, kd->initrd);
+ pb_log("%s: args: '%s'\n", __func__, kd->args);
+
+ assert(on_exit);
+
+ ked = talloc_zero(ui_ctx, struct ked);
+
+ if (!ked)
+ return NULL;
+
+ talloc_set_destructor(ked, ked_destructor);
+
+ nc_scr_init(&ked->scr, pb_ked_sig, 0, ui_ctx, ked_process_key,
+ ked_post, ked_unpost, ked_resize);
+
+ ked->scr.frame.title = talloc_strdup(ked, "Petitboot Option Editor");
+ ked->scr.frame.help = talloc_strdup(ked,
+ "ESC=cancel, Enter=accept, Ctrl-b=boot");
+
+ ked->on_exit = on_exit;
+
+ ked->fields = talloc_array(ked, FIELD *, 7);
+
+ ked->fields[0] = ked_setup_field(0, 9, kd->image);
+ ked->fields[1] = ked_setup_field(1, 9, kd->initrd);
+ ked->fields[2] = ked_setup_field(2, 9, kd->args);
+ ked->fields[3] = ked_setup_label(0, 1, "image:");
+ ked->fields[4] = ked_setup_label(1, 1, "initrd:");
+ ked->fields[5] = ked_setup_label(2, 1, "args:");
+ ked->fields[6] = NULL;
+
+ ked->ncf = new_form(ked->fields);
+
+ set_form_win(ked->ncf, ked->scr.main_ncw);
+ set_form_sub(ked->ncf, ked->scr.sub_ncw);
+
+ return ked;
+}
--- /dev/null
+/*
+ * Copyright (C) 2009 Sony Computer Entertainment Inc.
+ * Copyright 2009 Sony Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#if !defined(_PB_NC_KED_H)
+#define _PB_NC_KED_H
+
+#include <assert.h>
+#include <form.h>
+
+#include "pb-protocol/pb-protocol.h"
+#include "ui/common/ui-system.h"
+#include "nc-scr.h"
+
+enum ked_attr_field {
+ ked_attr_field_normal = A_NORMAL,
+ ked_attr_field_selected = A_REVERSE,
+};
+
+enum ked_attr_cursor {
+ ked_attr_cursor_ins = A_NORMAL,
+ ked_attr_cursor_ovl = A_NORMAL | A_UNDERLINE,
+};
+
+/**
+ * enum ked_result - Result code for ked:on_exit().
+ * @ked_cancel: The user canceled the operation.
+ * @ked_update: The args were updated.
+ * @ked_boot: The user requested a boot of this item.
+ */
+
+enum ked_result {
+ ked_cancel,
+ ked_update,
+ ked_boot,
+};
+
+/**
+ * struct ked - kexec args editor.
+ */
+
+struct ked {
+ struct nc_scr scr;
+ FORM *ncf;
+ FIELD **fields;
+ enum ked_attr_cursor attr_cursor;
+ void (*on_exit)(struct ked *ked, enum ked_result result,
+ struct pb_kexec_data *kd);
+};
+
+struct ked *ked_init(void *ui_ctx, const struct pb_kexec_data *kd,
+ void (*on_exit)(struct ked *, enum ked_result, struct pb_kexec_data *));
+
+#endif
projects / petitboot / commitdiff