2 * Copyright (C) 2013 IBM Corporation
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.
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.
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
18 #if defined(HAVE_CONFIG_H)
22 #include <linux/input.h> /* This must be included before ncurses.h */
23 #if defined HAVE_NCURSESW_CURSES_H
24 # include <ncursesw/curses.h>
25 #elif defined HAVE_NCURSESW_H
26 # include <ncursesw.h>
27 #elif defined HAVE_NCURSES_CURSES_H
28 # include <ncurses/curses.h>
29 #elif defined HAVE_NCURSES_H
31 #elif defined HAVE_CURSES_H
34 # error "Curses header file not found."
37 #if defined HAVE_NCURSESW_FORM_H
38 # include <ncursesw/form.h>
39 #elif defined HAVE_NCURSES_FORM_H
40 # include <ncurses/form.h>
41 #elif defined HAVE_FORM_H
44 # error "Curses form.h not found."
50 #include <talloc/talloc.h>
51 #include <types/types.h>
53 #include <util/util.h>
54 #include <i18n/i18n.h>
55 #include <fold/fold.h>
58 #include "nc-widgets.h"
62 #define to_checkbox(w) container_of(w, struct nc_widget_checkbox, widget)
63 #define to_textbox(w) container_of(w, struct nc_widget_textbox, widget)
64 #define to_button(w) container_of(w, struct nc_widget_button, widget)
65 #define to_select(w) container_of(w, struct nc_widget_select, widget)
66 #define to_subset(w) container_of(w, struct nc_widget_subset, widget)
68 static const char *checkbox_checked_str = "[*]";
69 static const char *checkbox_unchecked_str = "[ ]";
71 static const char *select_selected_str = "(*)";
72 static const char *select_unselected_str = "( )";
79 int n_fields, n_alloc_fields;
80 void (*widget_focus)(struct nc_widget *, void *);
81 void *widget_focus_arg;
84 /* custom validators */
85 FIELDTYPE *ipv4_multi_type;
90 bool (*process_key)(struct nc_widget *, FORM *, int);
91 void (*set_visible)(struct nc_widget *, bool);
92 void (*move)(struct nc_widget *, int, int);
93 void (*field_focus)(struct nc_widget *, FIELD *);
103 struct nc_widget_label {
104 struct nc_widget widget;
108 struct nc_widget_checkbox {
109 struct nc_widget widget;
113 struct nc_widget_textbox {
114 struct nc_widgetset *set;
115 struct nc_widget widget;
118 struct nc_widget_subset {
119 struct nc_widget widget;
122 struct subset_option {
129 struct nc_widgetset *set;
130 void (*on_change)(void *, int);
132 void (*screen_cb)(void *,
133 struct nc_widget_subset *, int);
136 struct nc_widget_select {
137 struct nc_widget widget;
138 struct select_option {
145 int n_options, selected_option;
146 struct nc_widgetset *set;
147 void (*on_change)(void *, int);
151 struct nc_widget_button {
152 struct nc_widget widget;
153 void (*click)(void *arg);
157 static void widgetset_add_field(struct nc_widgetset *set, FIELD *field);
158 static void widgetset_remove_field(struct nc_widgetset *set, FIELD *field);
160 static bool key_is_select(int key)
162 return key == ' ' || key == '\r' || key == '\n' || key == KEY_ENTER;
165 static bool process_key_nop(struct nc_widget *widget __attribute__((unused)),
166 FORM *form __attribute((unused)),
167 int key __attribute__((unused)))
172 static void field_set_visible(FIELD *field, bool visible)
174 int opts = field_opts(field) & ~O_VISIBLE;
177 set_field_opts(field, opts);
180 static bool field_visible(FIELD *field)
182 return (field_opts(field) & O_VISIBLE) == O_VISIBLE;
185 static void field_move(FIELD *field, int y, int x)
187 move_field(field, y, x);
190 static int label_destructor(void *ptr)
192 struct nc_widget_label *label = ptr;
193 free_field(label->widget.field);
198 struct nc_widget_label *widget_new_label(struct nc_widgetset *set,
199 int y, int x, char *str)
201 struct nc_widget_label *label;
207 label = talloc_zero(set, struct nc_widget_label);
208 label->widget.height = 1;
209 label->widget.width = len;
212 label->widget.process_key = process_key_nop;
213 label->widget.field = f = new_field(1, len, y, x, 0, 0);
214 label->widget.focussed_attr = A_NORMAL;
215 label->widget.unfocussed_attr = A_NORMAL;
217 field_opts_off(f, O_ACTIVE);
218 set_field_buffer(f, 0, str);
219 set_field_userptr(f, &label->widget);
221 widgetset_add_field(set, label->widget.field);
222 talloc_set_destructor(label, label_destructor);
227 bool widget_checkbox_get_value(struct nc_widget_checkbox *checkbox)
229 return checkbox->checked;
232 static void checkbox_set_buffer(struct nc_widget_checkbox *checkbox)
235 str = checkbox->checked ? checkbox_checked_str : checkbox_unchecked_str;
236 set_field_buffer(checkbox->widget.field, 0, str);
239 static bool checkbox_process_key(struct nc_widget *widget,
240 FORM *form __attribute__((unused)), int key)
242 struct nc_widget_checkbox *checkbox = to_checkbox(widget);
244 if (!key_is_select(key))
247 checkbox->checked = !checkbox->checked;
248 checkbox_set_buffer(checkbox);
253 static int checkbox_destructor(void *ptr)
255 struct nc_widget_checkbox *checkbox = ptr;
256 free_field(checkbox->widget.field);
260 struct nc_widget_checkbox *widget_new_checkbox(struct nc_widgetset *set,
261 int y, int x, bool checked)
263 struct nc_widget_checkbox *checkbox;
266 checkbox = talloc_zero(set, struct nc_widget_checkbox);
267 checkbox->checked = checked;
268 checkbox->widget.height = 1;
269 checkbox->widget.width = strlen(checkbox_checked_str);
270 checkbox->widget.x = x;
271 checkbox->widget.y = y;
272 checkbox->widget.process_key = checkbox_process_key;
273 checkbox->widget.focussed_attr = A_REVERSE;
274 checkbox->widget.unfocussed_attr = A_NORMAL;
275 checkbox->widget.field = f = new_field(1, strlen(checkbox_checked_str),
278 field_opts_off(f, O_EDIT);
279 set_field_userptr(f, &checkbox->widget);
280 checkbox_set_buffer(checkbox);
282 widgetset_add_field(set, checkbox->widget.field);
283 talloc_set_destructor(checkbox, checkbox_destructor);
288 static char *strip_string(char *str)
294 /* clear trailing space */
295 for (i = len - 1; i >= 0; i--) {
296 if (!isspace(str[i]))
301 /* increment str past leading space */
302 for (i = 0; i < len; i++) {
303 if (str[i] == '\0' || !isspace(str[i]))
310 char *widget_textbox_get_value(struct nc_widget_textbox *textbox)
312 char *str = field_buffer(textbox->widget.field, 0);
313 return str ? strip_string(str) : NULL;
316 static bool textbox_process_key(
317 struct nc_widget *widget __attribute__((unused)),
322 form_driver(form, REQ_BEG_FIELD);
325 form_driver(form, REQ_END_FIELD);
328 form_driver(form, REQ_LEFT_CHAR);
331 form_driver(form, REQ_RIGHT_CHAR);
334 if (form_driver(form, REQ_LEFT_CHAR) != E_OK)
338 form_driver(form, REQ_DEL_CHAR);
341 form_driver(form, key);
348 static int textbox_destructor(void *ptr)
350 struct nc_widget_textbox *textbox = ptr;
351 free_field(textbox->widget.field);
355 struct nc_widget_textbox *widget_new_textbox(struct nc_widgetset *set,
356 int y, int x, int len, char *str)
358 struct nc_widget_textbox *textbox;
361 textbox = talloc_zero(set, struct nc_widget_textbox);
363 textbox->widget.height = 1;
364 textbox->widget.width = len;
365 textbox->widget.x = x;
366 textbox->widget.y = y;
367 textbox->widget.process_key = textbox_process_key;
368 textbox->widget.field = f = new_field(1, len, y, x, 0, 0);
369 textbox->widget.focussed_attr = A_REVERSE;
370 textbox->widget.unfocussed_attr = A_UNDERLINE;
372 field_opts_off(f, O_STATIC | O_WRAP | O_BLANK);
373 set_field_buffer(f, 0, str);
374 set_field_back(f, textbox->widget.unfocussed_attr);
375 set_field_userptr(f, &textbox->widget);
377 widgetset_add_field(set, textbox->widget.field);
378 talloc_set_destructor(textbox, textbox_destructor);
383 void widget_textbox_set_fixed_size(struct nc_widget_textbox *textbox)
385 field_opts_on(textbox->widget.field, O_STATIC);
388 void widget_textbox_set_validator_integer(struct nc_widget_textbox *textbox,
391 set_field_type(textbox->widget.field, TYPE_INTEGER, 1, min, max);
394 void widget_textbox_set_validator_ipv4(struct nc_widget_textbox *textbox)
396 set_field_type(textbox->widget.field, TYPE_IPV4);
399 static bool check_ipv4_multi_char(int c,
400 const void *arg __attribute__((unused)))
402 return isdigit(c) || c == '.' || c == ' ';
405 static bool check_ipv4_multi_field(FIELD *field,
406 const void *arg __attribute__((unused)))
408 char *buf = field_buffer(field, 0);
412 while (*buf != '\0') {
413 n = sscanf(buf, "%u.%u.%u.%u%n",
414 &ip[0], &ip[1], &ip[2], &ip[3], &len);
418 if (ip[0] > 255 || ip[1] > 255 || ip[2] > 255 || ip[3] > 255)
421 for (buf += len; *buf != '\0'; buf++) {
424 else if (isdigit(*buf))
434 void widget_textbox_set_validator_ipv4_multi(struct nc_widget_textbox *textbox)
436 if (!textbox->set->ipv4_multi_type) {
437 textbox->set->ipv4_multi_type = new_fieldtype(
438 check_ipv4_multi_field,
439 check_ipv4_multi_char);
441 set_field_type(textbox->widget.field, textbox->set->ipv4_multi_type);
444 static void subset_update_order(struct nc_widget_subset *subset)
449 for (i = 0; i < subset->n_active; i++) {
450 val = subset->active[i];
451 str = talloc_asprintf(subset, "(%d) %s",
452 i, subset->options[val].str);
453 set_field_buffer(subset->options[val].field, 0,
459 static void widget_focus_change(struct nc_widget *widget, FIELD *field,
462 static void subset_delete_active(struct nc_widget_subset *subset, int idx)
464 bool last = idx == (subset->n_active - 1);
465 struct nc_widgetset *set = subset->set;
466 struct nc_widget *widget;
471 /* Shift field focus to nearest active option or next visible field */
472 if (subset->n_active > 1) {
474 val = subset->active[idx - 1];
476 val = subset->active[idx + 1];
477 set->cur_field = subset->options[val].field;
479 for (i = 0; i < set->n_fields; i++)
480 if (field_visible(set->fields[i])) {
481 opts = field_opts(set->fields[i]);
482 if ((opts & O_ACTIVE) == O_ACTIVE) {
483 set->cur_field = set->fields[i];
489 set_current_field(set->form, set->cur_field);
490 widget = field_userptr(set->cur_field);
491 widget_focus_change(widget, set->cur_field, true);
492 if (set->widget_focus)
493 set->widget_focus(widget, set->widget_focus_arg);
495 /* Update active array */
496 rem = sizeof(int) * (subset->n_active - idx - 1);
497 val = subset->active[idx];
498 field_set_visible(subset->options[val].field, false);
500 memmove(&subset->active[idx], &subset->active[idx + 1], rem);
502 subset->active = talloc_realloc(subset, subset->active,
503 int, subset->n_active);
505 subset->widget.height = subset->n_active;
508 static bool subset_process_key(struct nc_widget *w, FORM *form, int key)
510 struct nc_widget_subset *subset = to_subset(w);
511 int i, val, opt_idx = -1;
514 if (key != '-' && key != '+' && key != KEY_DC && key != KEY_BACKSPACE)
517 field = current_field(form);
519 for (i = 0; i < subset->n_active; i++) {
520 val = subset->active[i];
521 if (subset->options[val].field == field) {
530 if (key == KEY_DC || key == KEY_BACKSPACE)
531 subset_delete_active(subset, opt_idx);
537 val = subset->active[opt_idx];
538 subset->active[opt_idx] = subset->active[opt_idx - 1];
539 subset->active[opt_idx - 1] = val;
543 if (opt_idx >= subset->n_active - 1)
546 val = subset->active[opt_idx];
547 subset->active[opt_idx] = subset->active[opt_idx + 1];
548 subset->active[opt_idx + 1] = val;
551 subset_update_order(subset);
553 if (subset->on_change)
554 subset->on_change(subset->on_change_arg, 0);
559 static void subset_set_visible(struct nc_widget *widget, bool visible)
561 struct nc_widget_subset *subset = to_subset(widget);
564 for (i = 0; i < subset->n_active; i++) {
565 val = subset->active[i];
566 field_set_visible(subset->options[val].field, visible);
570 static void subset_move(struct nc_widget *widget, int y, int x)
572 struct nc_widget_subset *subset = to_subset(widget);
575 for (i = 0; i < subset->n_active; i++) {
576 val = subset->active[i];
577 field_move(subset->options[val].field, y + i , x);
581 static void subset_field_focus(struct nc_widget *widget, FIELD *field)
583 struct nc_widget_subset *subset = to_subset(widget);
586 for (i = 0; i < subset->n_active; i++) {
587 val = subset->active[i];
588 if (field == subset->options[val].field) {
595 static int subset_destructor(void *ptr)
597 struct nc_widget_subset *subset = ptr;
600 for (i = 0; i < subset->n_options; i++)
601 free_field(subset->options[i].field);
606 struct nc_widget_subset *widget_new_subset(struct nc_widgetset *set,
607 int y, int x, int len, void *screen_cb)
609 struct nc_widget_subset *subset;
611 subset = talloc_zero(set, struct nc_widget_subset);
612 subset->widget.width = len;
613 subset->widget.height = 0;
614 subset->widget.x = x;
615 subset->widget.y = y;
616 subset->widget.process_key = subset_process_key;
617 subset->widget.set_visible = subset_set_visible;
618 subset->widget.move = subset_move;
619 subset->widget.field_focus = subset_field_focus;
620 subset->widget.focussed_attr = A_REVERSE;
621 subset->widget.unfocussed_attr = A_NORMAL;
626 subset->n_active = subset->n_options = 0;
627 subset->active = NULL;
628 subset->options = NULL;
629 subset->screen_cb = screen_cb;
631 talloc_set_destructor(subset, subset_destructor);
636 void widget_subset_add_option(struct nc_widget_subset *subset, const char *text)
641 i = subset->n_options++;
642 subset->options = talloc_realloc(subset, subset->options,
643 struct subset_option, i + 1);
645 subset->options[i].str = talloc_strdup(subset->options, text);
647 subset->options[i].field = f = new_field(1, subset->size, subset->top + i,
650 field_opts_off(f, O_WRAP | O_EDIT);
651 set_field_userptr(f, &subset->widget);
652 set_field_buffer(f, 0, subset->options[i].str);
653 field_set_visible(f, false);
654 widgetset_add_field(subset->set, f);
657 void widget_subset_make_active(struct nc_widget_subset *subset, int idx)
661 for (i = 0; i < subset->n_active; i++)
662 if (subset->active[i] == idx) {
663 pb_debug("%s: Index %d already active\n", __func__, idx);
667 i = subset->n_active++;
668 subset->widget.height = subset->n_active;
669 subset->active = talloc_realloc(subset, subset->active,
671 subset->active[i] = idx;
673 subset_update_order(subset);
676 int widget_subset_get_order(void *ctx, unsigned int **order,
677 struct nc_widget_subset *subset)
679 unsigned int *buf = talloc_array(ctx, unsigned int, subset->n_active);
682 for (i = 0; i < subset->n_active; i++)
683 buf[i] = subset->active[i];
689 void widget_subset_show_inactive(struct nc_widget_subset *subset,
690 struct nc_widget_select *select)
692 bool active = false, first = true;
695 for (i = 0; i < subset->n_options; i++) {
697 for (j = 0; j < subset->n_active; j++)
698 if (subset->active[j] == i)
704 widget_select_add_option(select, i,
705 subset->options[i].str, first);
711 int widget_subset_n_inactive(struct nc_widget_subset *subset)
713 return subset->n_options - subset->n_active;
716 int widget_subset_height(struct nc_widget_subset *subset)
718 return subset->n_active;
721 void widget_subset_on_change(struct nc_widget_subset *subset,
722 void (*on_change)(void *, int), void *arg)
724 subset->on_change = on_change;
725 subset->on_change_arg = arg;
728 void widget_subset_drop_options(struct nc_widget_subset *subset)
730 struct nc_widgetset *set = subset->set;
733 for (i = 0; i < subset->n_options; i++) {
734 FIELD *field = subset->options[i].field;
735 widgetset_remove_field(set, field);
736 if (field == set->cur_field)
737 set->cur_field = NULL;
738 free_field(subset->options[i].field);
741 talloc_free(subset->options);
742 talloc_free(subset->active);
743 subset->options = NULL;
744 subset->active = NULL;
745 subset->n_options = 0;
746 subset->n_active = 0;
747 subset->widget.height = 0;
748 subset->widget.focus_y = 0;
751 void widget_subset_clear_active(struct nc_widget_subset *subset)
755 for (i = 0; i < subset->n_options; i++)
756 field_set_visible(subset->options[i].field, false);
758 talloc_free(subset->active);
759 subset->active = NULL;
760 subset->n_active = 0;
761 subset->widget.height = 0;
762 subset->widget.focus_y = 0;
765 void widget_subset_callback(void *arg,
766 struct nc_widget_subset *subset, int idx)
768 subset->screen_cb(arg, subset, idx);
771 static void select_option_change(struct select_option *opt, bool selected)
775 str = selected ? select_selected_str : select_unselected_str;
777 memcpy(opt->str, str, strlen(str));
778 set_field_buffer(opt->field, 0, opt->str);
781 static bool select_process_key(struct nc_widget *w, FORM *form, int key)
783 struct nc_widget_select *select = to_select(w);
784 struct select_option *new_opt, *old_opt;
788 if (!key_is_select(key))
791 field = current_field(form);
794 for (i = 0; i < select->n_options; i++) {
795 if (select->options[i].field == field) {
796 new_opt = &select->options[i];
805 if (new_idx == select->selected_option)
808 old_opt = &select->options[select->selected_option];
810 select_option_change(old_opt, false);
811 select_option_change(new_opt, true);
813 select->selected_option = new_idx;
815 if (select->on_change)
816 select->on_change(select->on_change_arg, new_opt->val);
821 static void select_set_visible(struct nc_widget *widget, bool visible)
823 struct nc_widget_select *select = to_select(widget);
826 for (i = 0; i < select->n_options; i++)
827 field_set_visible(select->options[i].field, visible);
830 static void select_move(struct nc_widget *widget, int y, int x)
832 struct nc_widget_select *select = to_select(widget);
835 for (i = 0; i < select->n_options; i++) {
836 field_move(select->options[i].field, y + cur, x);
837 cur += select->options[i].lines;
841 static void select_field_focus(struct nc_widget *widget, FIELD *field)
843 struct nc_widget_select *select = to_select(widget);
846 for (i = 0; i < select->n_options; i++) {
847 if (field != select->options[i].field) {
848 cur += select->options[i].lines;
851 widget->focus_y = cur;
856 static int select_destructor(void *ptr)
858 struct nc_widget_select *select = ptr;
861 for (i = 0; i < select->n_options; i++)
862 free_field(select->options[i].field);
867 struct nc_widget_select *widget_new_select(struct nc_widgetset *set,
868 int y, int x, int len)
870 struct nc_widget_select *select;
872 select = talloc_zero(set, struct nc_widget_select);
873 select->widget.width = len;
874 select->widget.height = 0;
875 select->widget.x = x;
876 select->widget.y = y;
877 select->widget.process_key = select_process_key;
878 select->widget.set_visible = select_set_visible;
879 select->widget.move = select_move;
880 select->widget.field_focus = select_field_focus;
881 select->widget.focussed_attr = A_REVERSE;
882 select->widget.unfocussed_attr = A_NORMAL;
888 talloc_set_destructor(select, select_destructor);
893 static int widget_select_fold_cb(void *arg, const char *buf, int len)
895 struct nc_widget_select *select = arg;
896 char *line, *newstr, *padbuf = NULL;
902 line = talloc_strndup(select->options, buf, len);
904 i = select->n_options - 1;
905 pad = max(0, select->widget.width - strncols(line));
908 padbuf = talloc_array(select->options, char, pad + 1);
909 memset(padbuf, ' ', pad);
913 if (select->options[i].str)
914 newstr = talloc_asprintf_append(select->options[i].str,
918 newstr = talloc_asprintf(select->options, "%s%s", line,
921 select->options[i].str = newstr;
922 select->options[i].lines++;
929 void widget_select_add_option(struct nc_widget_select *select, int value,
930 const char *text, bool selected)
937 /* if we never see an option with selected set, we want the first
938 * one to be selected */
939 if (select->n_options == 0)
942 select_option_change(&select->options[select->selected_option],
946 select->selected_option = select->n_options;
947 str = select_selected_str;
949 str = select_unselected_str;
951 i = select->n_options++;
952 select->options = talloc_realloc(select, select->options,
953 struct select_option, i + 2);
954 select->options[i].val = value;
955 select->options[i].lines = 0;
956 select->options[i].str = NULL;
958 full_text = talloc_asprintf(select->options, "%s %s", str, text);
959 fold_text(full_text, select->widget.width,
960 widget_select_fold_cb, select);
962 select->options[i].field = f = new_field(select->options[i].lines,
964 select->top + select->widget.height,
967 select->widget.height += select->options[i].lines;
969 field_opts_off(f, O_EDIT);
970 set_field_userptr(f, &select->widget);
971 set_field_buffer(f, 0, select->options[i].str);
973 widgetset_add_field(select->set, f);
974 talloc_free(full_text);
977 int widget_select_get_value(struct nc_widget_select *select)
979 if (!select->n_options)
981 return select->options[select->selected_option].val;
984 int widget_select_height(struct nc_widget_select *select)
986 return select->widget.height;
989 void widget_select_on_change(struct nc_widget_select *select,
990 void (*on_change)(void *, int), void *arg)
992 select->on_change = on_change;
993 select->on_change_arg = arg;
996 void widget_select_drop_options(struct nc_widget_select *select)
998 struct nc_widgetset *set = select->set;
1001 for (i = 0; i < select->n_options; i++) {
1002 FIELD *field = select->options[i].field;
1003 widgetset_remove_field(set, field);
1004 if (field == set->cur_field)
1005 set->cur_field = NULL;
1006 free_field(select->options[i].field);
1009 talloc_free(select->options);
1010 select->options = NULL;
1011 select->n_options = 0;
1012 select->widget.height = 0;
1013 select->widget.focus_y = 0;
1017 static bool button_process_key(struct nc_widget *widget,
1018 FORM *form __attribute__((unused)), int key)
1020 struct nc_widget_button *button = to_button(widget);
1025 if (!key_is_select(key))
1028 button->click(button->arg);
1032 static int button_destructor(void *ptr)
1034 struct nc_widget_button *button = ptr;
1035 free_field(button->widget.field);
1039 struct nc_widget_button *widget_new_button(struct nc_widgetset *set,
1040 int y, int x, int size, const char *str,
1041 void (*click)(void *), void *arg)
1043 struct nc_widget_button *button;
1044 int idx, len, pad1, pad2, bufsz;
1048 int field_size = size + 2;
1050 button = talloc_zero(set, struct nc_widget_button);
1051 button->widget.height = 1;
1052 button->widget.width = field_size;
1053 button->widget.x = x;
1054 button->widget.y = y;
1055 button->widget.field = f = new_field(1, field_size, y, x, 0, 0);
1056 button->widget.process_key = button_process_key;
1057 button->widget.focussed_attr = A_REVERSE;
1058 button->widget.unfocussed_attr = A_NORMAL;
1059 button->click = click;
1062 field_opts_off(f, O_EDIT);
1063 set_field_userptr(f, &button->widget);
1065 /* Center str in the field. This depends on the number of columns used
1066 * by the string, not the number of chars in str */
1067 len = strncols(str);
1069 idx = (field_size - len) / 2;
1072 pb_log("Warning: '%s' %d columns wide "
1073 "but button is %d columns wide\n",
1077 pad1 = max(idx - 1, 0);
1078 pad2 = max(size - len - pad1, 0);
1079 bufsz = 1 + pad1 + strlen(str) + pad2 + 2;
1081 text = talloc_array(button, char, bufsz);
1082 memset(text, ' ', bufsz);
1083 memcpy(text + idx, str, strlen(str));
1085 text[bufsz - 2] = ']';
1086 text[bufsz - 1] = '\0';
1088 set_field_buffer(f, 0, text);
1090 widgetset_add_field(set, button->widget.field);
1091 talloc_set_destructor(button, button_destructor);
1096 void widget_focus_change(struct nc_widget *widget, FIELD *field,
1099 int attr = focussed ? widget->focussed_attr : widget->unfocussed_attr;
1100 set_field_back(field, attr);
1103 bool widgetset_process_key(struct nc_widgetset *set, int key)
1105 struct nc_widget *widget;
1110 field = current_field(set->form);
1115 /* handle field change events */
1122 req = REQ_SPREV_FIELD;
1129 req = REQ_SNEXT_FIELD;
1132 req = REQ_SFIRST_FIELD;
1135 req = REQ_SLAST_FIELD;
1139 widget = field_userptr(field);
1141 widget_focus_change(widget, field, false);
1142 form_driver(set->form, req);
1144 /* if we're doing a tabbed-field-change, skip until we
1145 * see the next widget */
1147 field = current_field(set->form);
1149 for (; tab && tmp != field && field_userptr(field) == widget;) {
1150 form_driver(set->form, req);
1151 field = current_field(set->form);
1154 form_driver(set->form, REQ_END_FIELD);
1155 widget = field_userptr(field);
1156 widget_focus_change(widget, field, true);
1157 if (widget->field_focus)
1158 widget->field_focus(widget, field);
1159 if (set->widget_focus)
1160 set->widget_focus(widget, set->widget_focus_arg);
1164 if (!widget->process_key)
1167 return widget->process_key(widget, set->form, key);
1170 static int widgetset_destructor(void *ptr)
1172 struct nc_widgetset *set = ptr;
1173 free_form(set->form);
1174 if (set->ipv4_multi_type)
1175 free_fieldtype(set->ipv4_multi_type);
1179 struct nc_widgetset *widgetset_create(void *ctx, WINDOW *main, WINDOW *sub)
1181 struct nc_widgetset *set;
1183 set = talloc_zero(ctx, struct nc_widgetset);
1184 set->n_alloc_fields = 8;
1185 set->mainwin = main;
1187 set->fields = talloc_array(set, FIELD *, set->n_alloc_fields);
1188 talloc_set_destructor(set, widgetset_destructor);
1193 void widgetset_set_windows(struct nc_widgetset *set,
1194 WINDOW *main, WINDOW *sub)
1196 set->mainwin = main;
1200 void widgetset_set_widget_focus(struct nc_widgetset *set,
1201 widget_focus_cb cb, void *arg)
1203 set->widget_focus = cb;
1204 set->widget_focus_arg = arg;
1207 void widgetset_post(struct nc_widgetset *set)
1209 struct nc_widget *widget;
1212 set->form = new_form(set->fields);
1213 set_form_win(set->form, set->mainwin);
1214 set_form_sub(set->form, set->subwin);
1215 post_form(set->form);
1216 form_driver(set->form, REQ_END_FIELD);
1219 set_current_field(set->form, set->cur_field);
1221 field = current_field(set->form);
1222 widget = field_userptr(field);
1223 widget_focus_change(widget, field, true);
1224 if (set->widget_focus)
1225 set->widget_focus(widget, set->widget_focus_arg);
1228 void widgetset_unpost(struct nc_widgetset *set)
1230 set->cur_field = current_field(set->form);
1231 unpost_form(set->form);
1232 free_form(set->form);
1236 static void widgetset_add_field(struct nc_widgetset *set, FIELD *field)
1238 if (set->n_fields == set->n_alloc_fields - 1) {
1239 set->n_alloc_fields *= 2;
1240 set->fields = talloc_realloc(set, set->fields,
1241 FIELD *, set->n_alloc_fields);
1245 set->fields[set->n_fields - 1] = field;
1246 set->fields[set->n_fields] = NULL;
1249 static void widgetset_remove_field(struct nc_widgetset *set, FIELD *field)
1253 for (i = 0; i < set->n_fields; i++) {
1254 if (set->fields[i] == field)
1258 if (i == set->n_fields)
1261 memmove(&set->fields[i], &set->fields[i+i],
1262 (set->n_fields - i) * sizeof(set->fields[i]));
1266 #define DECLARE_BASEFN(type) \
1267 struct nc_widget *widget_ ## type ## _base \
1268 (struct nc_widget_ ## type *w) \
1269 { return &w->widget; }
1271 DECLARE_BASEFN(textbox);
1272 DECLARE_BASEFN(checkbox);
1273 DECLARE_BASEFN(subset);
1274 DECLARE_BASEFN(select);
1275 DECLARE_BASEFN(label);
1276 DECLARE_BASEFN(button);
1278 void widget_set_visible(struct nc_widget *widget, bool visible)
1280 if (widget->set_visible)
1281 widget->set_visible(widget, visible);
1283 field_set_visible(widget->field, visible);
1286 void widget_move(struct nc_widget *widget, int y, int x)
1289 widget->move(widget, y, x);
1291 field_move(widget->field, y, x);
1296 if (x + widget->width > COLS)
1297 pb_debug("%s: Widget at %d,%d runs over pad! (%d)", __func__,
1298 y, x, x + widget->width);
1301 int widget_height(struct nc_widget *widget)
1303 return widget->height;
1306 int widget_width(struct nc_widget *widget)
1308 return widget->width;
1311 int widget_x(struct nc_widget *widget)
1316 int widget_y(struct nc_widget *widget)
1321 int widget_focus_y(struct nc_widget *widget)
1323 return widget->focus_y;