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."
47 #include <arpa/inet.h>
52 #include <talloc/talloc.h>
53 #include <types/types.h>
55 #include <util/util.h>
56 #include <i18n/i18n.h>
57 #include <fold/fold.h>
61 #include "nc-widgets.h"
65 #define to_checkbox(w) container_of(w, struct nc_widget_checkbox, widget)
66 #define to_textbox(w) container_of(w, struct nc_widget_textbox, widget)
67 #define to_button(w) container_of(w, struct nc_widget_button, widget)
68 #define to_select(w) container_of(w, struct nc_widget_select, widget)
69 #define to_subset(w) container_of(w, struct nc_widget_subset, widget)
71 static const char *checkbox_checked_str = "[*]";
72 static const char *checkbox_unchecked_str = "[ ]";
74 static const char *select_selected_str = "(*)";
75 static const char *select_unselected_str = "( )";
82 int n_fields, n_alloc_fields;
83 void (*widget_focus)(struct nc_widget *, void *);
84 void *widget_focus_arg;
87 /* custom validators */
88 FIELDTYPE *ip_multi_type;
95 bool (*process_key)(struct nc_widget *, FORM *, int);
96 void (*set_visible)(struct nc_widget *, bool);
97 void (*move)(struct nc_widget *, int, int);
98 void (*field_focus)(struct nc_widget *, FIELD *);
108 struct nc_widget_label {
109 struct nc_widget widget;
113 struct nc_widget_checkbox {
114 struct nc_widget widget;
118 struct nc_widget_textbox {
119 struct nc_widgetset *set;
120 struct nc_widget widget;
123 struct nc_widget_subset {
124 struct nc_widget widget;
127 struct subset_option {
134 struct nc_widgetset *set;
135 void (*on_change)(void *, int);
137 void (*screen_cb)(void *,
138 struct nc_widget_subset *, int);
141 struct nc_widget_select {
142 struct nc_widget widget;
143 struct select_option {
150 int n_options, selected_option;
151 struct nc_widgetset *set;
152 void (*on_change)(void *, int);
156 struct nc_widget_button {
157 struct nc_widget widget;
158 void (*click)(void *arg);
162 static void widgetset_add_field(struct nc_widgetset *set, FIELD *field);
163 static void widgetset_remove_field(struct nc_widgetset *set, FIELD *field);
165 static bool key_is_select(int key)
167 return key == ' ' || key == '\r' || key == '\n' || key == KEY_ENTER;
170 static bool process_key_nop(struct nc_widget *widget __attribute__((unused)),
171 FORM *form __attribute((unused)),
172 int key __attribute__((unused)))
177 static void field_set_visible(FIELD *field, bool visible)
179 int opts = field_opts(field) & ~O_VISIBLE;
182 set_field_opts(field, opts);
185 static bool field_visible(FIELD *field)
187 return (field_opts(field) & O_VISIBLE) == O_VISIBLE;
190 static void field_move(FIELD *field, int y, int x)
192 move_field(field, y, x);
195 static int label_destructor(void *ptr)
197 struct nc_widget_label *label = ptr;
198 free_field(label->widget.field);
203 struct nc_widget_label *widget_new_label(struct nc_widgetset *set,
204 int y, int x, char *str)
206 struct nc_widget_label *label;
212 label = talloc_zero(set, struct nc_widget_label);
213 label->widget.height = 1;
214 label->widget.width = len;
217 label->widget.process_key = process_key_nop;
218 label->widget.field = f = new_field(1, len, y, x, 0, 0);
219 label->widget.focussed_attr = A_NORMAL;
220 label->widget.unfocussed_attr = A_NORMAL;
222 field_opts_off(f, O_ACTIVE);
223 set_field_buffer(f, 0, str);
224 set_field_userptr(f, &label->widget);
226 widgetset_add_field(set, label->widget.field);
227 talloc_set_destructor(label, label_destructor);
232 bool widget_checkbox_get_value(struct nc_widget_checkbox *checkbox)
234 return checkbox->checked;
237 static void checkbox_set_buffer(struct nc_widget_checkbox *checkbox)
240 str = checkbox->checked ? checkbox_checked_str : checkbox_unchecked_str;
241 set_field_buffer(checkbox->widget.field, 0, str);
244 static bool checkbox_process_key(struct nc_widget *widget,
245 FORM *form __attribute__((unused)), int key)
247 struct nc_widget_checkbox *checkbox = to_checkbox(widget);
249 if (!key_is_select(key))
252 checkbox->checked = !checkbox->checked;
253 checkbox_set_buffer(checkbox);
258 static int checkbox_destructor(void *ptr)
260 struct nc_widget_checkbox *checkbox = ptr;
261 free_field(checkbox->widget.field);
265 struct nc_widget_checkbox *widget_new_checkbox(struct nc_widgetset *set,
266 int y, int x, bool checked)
268 struct nc_widget_checkbox *checkbox;
271 checkbox = talloc_zero(set, struct nc_widget_checkbox);
272 checkbox->checked = checked;
273 checkbox->widget.height = 1;
274 checkbox->widget.width = strlen(checkbox_checked_str);
275 checkbox->widget.x = x;
276 checkbox->widget.y = y;
277 checkbox->widget.process_key = checkbox_process_key;
278 checkbox->widget.focussed_attr = A_REVERSE;
279 checkbox->widget.unfocussed_attr = A_NORMAL;
280 checkbox->widget.field = f = new_field(1, strlen(checkbox_checked_str),
283 field_opts_off(f, O_EDIT);
284 set_field_userptr(f, &checkbox->widget);
285 checkbox_set_buffer(checkbox);
287 widgetset_add_field(set, checkbox->widget.field);
288 talloc_set_destructor(checkbox, checkbox_destructor);
293 static char *strip_string(char *str)
299 /* clear trailing space */
300 for (i = len - 1; i >= 0; i--) {
301 if (!isspace(str[i]))
306 /* increment str past leading space */
307 for (i = 0; i < len; i++) {
308 if (str[i] == '\0' || !isspace(str[i]))
315 char *widget_textbox_get_value(struct nc_widget_textbox *textbox)
317 char *str = field_buffer(textbox->widget.field, 0);
318 return str ? strip_string(str) : NULL;
321 static bool textbox_process_key(
322 struct nc_widget *widget __attribute__((unused)),
327 form_driver(form, REQ_BEG_FIELD);
330 form_driver(form, REQ_END_FIELD);
333 form_driver(form, REQ_LEFT_CHAR);
336 form_driver(form, REQ_RIGHT_CHAR);
339 if (form_driver(form, REQ_LEFT_CHAR) != E_OK)
343 form_driver(form, REQ_DEL_CHAR);
351 /* Don't catch navigational keys */
354 form_driver(form, key);
361 static int textbox_destructor(void *ptr)
363 struct nc_widget_textbox *textbox = ptr;
364 free_field(textbox->widget.field);
368 struct nc_widget_textbox *widget_new_textbox(struct nc_widgetset *set,
369 int y, int x, int len, char *str)
371 struct nc_widget_textbox *textbox;
374 textbox = talloc_zero(set, struct nc_widget_textbox);
376 textbox->widget.height = 1;
377 textbox->widget.width = len;
378 textbox->widget.x = x;
379 textbox->widget.y = y;
380 textbox->widget.process_key = textbox_process_key;
381 textbox->widget.field = f = new_field(1, len, y, x, 0, 0);
382 textbox->widget.focussed_attr = A_REVERSE;
383 textbox->widget.unfocussed_attr = A_UNDERLINE;
385 field_opts_off(f, O_STATIC | O_WRAP | O_BLANK);
386 set_field_buffer(f, 0, str);
387 set_field_back(f, textbox->widget.unfocussed_attr);
388 set_field_userptr(f, &textbox->widget);
390 widgetset_add_field(set, textbox->widget.field);
391 talloc_set_destructor(textbox, textbox_destructor);
396 void widget_textbox_set_fixed_size(struct nc_widget_textbox *textbox)
398 field_opts_on(textbox->widget.field, O_STATIC);
401 void widget_textbox_set_validator_integer(struct nc_widget_textbox *textbox,
404 set_field_type(textbox->widget.field, TYPE_INTEGER, 1, min, max);
407 static bool check_url_field(FIELD *field,
408 const void *arg __attribute__((unused)))
410 return is_url(field_buffer(field, 0));
413 void widget_textbox_set_validator_url(struct nc_widget_textbox *textbox)
415 if (!textbox->set->url_type)
416 textbox->set->url_type = new_fieldtype(check_url_field, NULL);
418 set_field_type(textbox->widget.field, textbox->set->url_type);
421 static bool check_ip_field(FIELD *field,
422 const void *arg __attribute__((unused)))
427 str = strip_string(field_buffer(field, 0));
429 rc = addr_scheme(str);
431 return (rc == AF_INET || rc == AF_INET6);
435 static bool check_ipv6_multi_char(int c)
437 return isdigit(c) || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F') ||
438 c == ':' || c == ' ';
441 static bool check_ipv4_multi_char(int c)
443 return isdigit(c) || c == '.' || c == ' ';
446 static bool check_ip_multi_field(FIELD *field,
447 const void *arg __attribute__((unused)))
449 char *buf, *tok, *saveptr;
453 /* Use strdup directly since we can't easily reach a talloc parent */
454 buf = strdup(strip_string(field_buffer(field, 0)));
460 tok = strtok_r(buf, " ", &saveptr);
461 if (!tok || *tok == '\0')
465 type = addr_scheme(tok);
466 if (!(type == AF_INET || type == AF_INET6))
469 tok = strtok_r(NULL, " ", &saveptr);
478 static bool check_ip_multi_char(int c, const void *arg __attribute__((unused)))
480 return (check_ipv4_multi_char(c) || check_ipv6_multi_char(c));
483 void widget_textbox_set_validator_ip(struct nc_widget_textbox *textbox)
485 if (!textbox->set->ip_type) {
486 textbox->set->ip_type = new_fieldtype(check_ip_field, NULL);
488 set_field_type(textbox->widget.field, textbox->set->ip_type);
492 * In a perfect world we would use link_fieldtype() but segfaults do not
493 * enhance the user experience.
495 void widget_textbox_set_validator_ip_multi(struct nc_widget_textbox *textbox)
497 if (!textbox->set->ip_multi_type) {
498 textbox->set->ip_multi_type = new_fieldtype(
499 check_ip_multi_field,
500 check_ip_multi_char);
502 set_field_type(textbox->widget.field, textbox->set->ip_multi_type);
505 static void subset_update_order(struct nc_widget_subset *subset)
510 for (i = 0; i < subset->n_active; i++) {
511 val = subset->active[i];
512 str = talloc_asprintf(subset, "(%d) %s",
513 i, subset->options[val].str);
514 set_field_buffer(subset->options[val].field, 0,
520 static void widget_focus_change(struct nc_widget *widget, FIELD *field,
523 static void subset_delete_active(struct nc_widget_subset *subset, int idx)
525 bool last = idx == (subset->n_active - 1);
526 struct nc_widgetset *set = subset->set;
527 struct nc_widget *widget;
532 /* Shift field focus to nearest active option or next visible field */
533 if (subset->n_active > 1) {
535 val = subset->active[idx - 1];
537 val = subset->active[idx + 1];
538 set->cur_field = subset->options[val].field;
540 for (i = 0; i < set->n_fields; i++)
541 if (field_visible(set->fields[i])) {
542 opts = field_opts(set->fields[i]);
543 if ((opts & O_ACTIVE) == O_ACTIVE) {
544 set->cur_field = set->fields[i];
550 set_current_field(set->form, set->cur_field);
551 widget = field_userptr(set->cur_field);
552 widget_focus_change(widget, set->cur_field, true);
553 if (set->widget_focus)
554 set->widget_focus(widget, set->widget_focus_arg);
556 /* Update active array */
557 rem = sizeof(int) * (subset->n_active - idx - 1);
558 val = subset->active[idx];
559 field_set_visible(subset->options[val].field, false);
561 memmove(&subset->active[idx], &subset->active[idx + 1], rem);
563 subset->active = talloc_realloc(subset, subset->active,
564 int, subset->n_active);
566 subset->widget.height = subset->n_active;
569 static bool subset_process_key(struct nc_widget *w, FORM *form, int key)
571 struct nc_widget_subset *subset = to_subset(w);
572 int i, val, opt_idx = -1;
575 if (key != '-' && key != '+' && key != KEY_DC && key != KEY_BACKSPACE)
578 field = current_field(form);
580 for (i = 0; i < subset->n_active; i++) {
581 val = subset->active[i];
582 if (subset->options[val].field == field) {
591 if (key == KEY_DC || key == KEY_BACKSPACE)
592 subset_delete_active(subset, opt_idx);
598 val = subset->active[opt_idx];
599 subset->active[opt_idx] = subset->active[opt_idx - 1];
600 subset->active[opt_idx - 1] = val;
604 if (opt_idx >= subset->n_active - 1)
607 val = subset->active[opt_idx];
608 subset->active[opt_idx] = subset->active[opt_idx + 1];
609 subset->active[opt_idx + 1] = val;
612 subset_update_order(subset);
614 if (subset->on_change)
615 subset->on_change(subset->on_change_arg, 0);
620 static void subset_set_visible(struct nc_widget *widget, bool visible)
622 struct nc_widget_subset *subset = to_subset(widget);
625 for (i = 0; i < subset->n_active; i++) {
626 val = subset->active[i];
627 field_set_visible(subset->options[val].field, visible);
631 static void subset_move(struct nc_widget *widget, int y, int x)
633 struct nc_widget_subset *subset = to_subset(widget);
636 for (i = 0; i < subset->n_active; i++) {
637 val = subset->active[i];
638 field_move(subset->options[val].field, y + i , x);
642 static void subset_field_focus(struct nc_widget *widget, FIELD *field)
644 struct nc_widget_subset *subset = to_subset(widget);
647 for (i = 0; i < subset->n_active; i++) {
648 val = subset->active[i];
649 if (field == subset->options[val].field) {
656 static int subset_destructor(void *ptr)
658 struct nc_widget_subset *subset = ptr;
661 for (i = 0; i < subset->n_options; i++)
662 free_field(subset->options[i].field);
667 struct nc_widget_subset *widget_new_subset(struct nc_widgetset *set,
668 int y, int x, int len, void *screen_cb)
670 struct nc_widget_subset *subset;
672 subset = talloc_zero(set, struct nc_widget_subset);
673 subset->widget.width = len;
674 subset->widget.height = 0;
675 subset->widget.x = x;
676 subset->widget.y = y;
677 subset->widget.process_key = subset_process_key;
678 subset->widget.set_visible = subset_set_visible;
679 subset->widget.move = subset_move;
680 subset->widget.field_focus = subset_field_focus;
681 subset->widget.focussed_attr = A_REVERSE;
682 subset->widget.unfocussed_attr = A_NORMAL;
687 subset->n_active = subset->n_options = 0;
688 subset->active = NULL;
689 subset->options = NULL;
690 subset->screen_cb = screen_cb;
692 talloc_set_destructor(subset, subset_destructor);
697 void widget_subset_add_option(struct nc_widget_subset *subset, const char *text)
702 i = subset->n_options++;
703 subset->options = talloc_realloc(subset, subset->options,
704 struct subset_option, i + 1);
706 subset->options[i].str = talloc_strdup(subset->options, text);
708 subset->options[i].field = f = new_field(1, subset->size, subset->top + i,
711 field_opts_off(f, O_WRAP | O_EDIT);
712 set_field_userptr(f, &subset->widget);
713 set_field_buffer(f, 0, subset->options[i].str);
714 field_set_visible(f, false);
715 widgetset_add_field(subset->set, f);
718 void widget_subset_make_active(struct nc_widget_subset *subset, int idx)
722 for (i = 0; i < subset->n_active; i++)
723 if (subset->active[i] == idx) {
724 pb_debug("%s: Index %d already active\n", __func__, idx);
728 i = subset->n_active++;
729 subset->widget.height = subset->n_active;
730 subset->active = talloc_realloc(subset, subset->active,
732 subset->active[i] = idx;
734 subset_update_order(subset);
737 int widget_subset_get_order(void *ctx, unsigned int **order,
738 struct nc_widget_subset *subset)
740 unsigned int *buf = talloc_array(ctx, unsigned int, subset->n_active);
743 for (i = 0; i < subset->n_active; i++)
744 buf[i] = subset->active[i];
750 void widget_subset_show_inactive(struct nc_widget_subset *subset,
751 struct nc_widget_select *select)
753 bool active = false, first = true;
756 for (i = 0; i < subset->n_options; i++) {
758 for (j = 0; j < subset->n_active; j++)
759 if (subset->active[j] == i)
765 widget_select_add_option(select, i,
766 subset->options[i].str, first);
772 int widget_subset_n_inactive(struct nc_widget_subset *subset)
774 return subset->n_options - subset->n_active;
777 int widget_subset_height(struct nc_widget_subset *subset)
779 return subset->n_active;
782 void widget_subset_on_change(struct nc_widget_subset *subset,
783 void (*on_change)(void *, int), void *arg)
785 subset->on_change = on_change;
786 subset->on_change_arg = arg;
789 void widget_subset_drop_options(struct nc_widget_subset *subset)
791 struct nc_widgetset *set = subset->set;
794 for (i = 0; i < subset->n_options; i++) {
795 FIELD *field = subset->options[i].field;
796 widgetset_remove_field(set, field);
797 if (field == set->cur_field)
798 set->cur_field = NULL;
799 free_field(subset->options[i].field);
802 talloc_free(subset->options);
803 talloc_free(subset->active);
804 subset->options = NULL;
805 subset->active = NULL;
806 subset->n_options = 0;
807 subset->n_active = 0;
808 subset->widget.height = 0;
809 subset->widget.focus_y = 0;
812 void widget_subset_clear_active(struct nc_widget_subset *subset)
816 for (i = 0; i < subset->n_options; i++)
817 field_set_visible(subset->options[i].field, false);
819 talloc_free(subset->active);
820 subset->active = NULL;
821 subset->n_active = 0;
822 subset->widget.height = 0;
823 subset->widget.focus_y = 0;
826 void widget_subset_callback(void *arg,
827 struct nc_widget_subset *subset, int idx)
829 subset->screen_cb(arg, subset, idx);
832 static void select_option_change(struct select_option *opt, bool selected)
836 str = selected ? select_selected_str : select_unselected_str;
838 memcpy(opt->str, str, strlen(str));
839 set_field_buffer(opt->field, 0, opt->str);
842 static bool select_process_key(struct nc_widget *w, FORM *form, int key)
844 struct nc_widget_select *select = to_select(w);
845 struct select_option *new_opt, *old_opt;
849 if (!key_is_select(key))
852 field = current_field(form);
855 for (i = 0; i < select->n_options; i++) {
856 if (select->options[i].field == field) {
857 new_opt = &select->options[i];
866 if (new_idx == select->selected_option)
869 old_opt = &select->options[select->selected_option];
871 select_option_change(old_opt, false);
872 select_option_change(new_opt, true);
874 select->selected_option = new_idx;
876 if (select->on_change)
877 select->on_change(select->on_change_arg, new_opt->val);
882 static void select_set_visible(struct nc_widget *widget, bool visible)
884 struct nc_widget_select *select = to_select(widget);
887 for (i = 0; i < select->n_options; i++)
888 field_set_visible(select->options[i].field, visible);
891 static void select_move(struct nc_widget *widget, int y, int x)
893 struct nc_widget_select *select = to_select(widget);
896 for (i = 0; i < select->n_options; i++) {
897 field_move(select->options[i].field, y + cur, x);
898 cur += select->options[i].lines;
902 static void select_field_focus(struct nc_widget *widget, FIELD *field)
904 struct nc_widget_select *select = to_select(widget);
907 for (i = 0; i < select->n_options; i++) {
908 if (field != select->options[i].field) {
909 cur += select->options[i].lines;
912 widget->focus_y = cur;
917 static int select_destructor(void *ptr)
919 struct nc_widget_select *select = ptr;
922 for (i = 0; i < select->n_options; i++)
923 free_field(select->options[i].field);
928 struct nc_widget_select *widget_new_select(struct nc_widgetset *set,
929 int y, int x, int len)
931 struct nc_widget_select *select;
933 select = talloc_zero(set, struct nc_widget_select);
934 select->widget.width = len;
935 select->widget.height = 0;
936 select->widget.x = x;
937 select->widget.y = y;
938 select->widget.process_key = select_process_key;
939 select->widget.set_visible = select_set_visible;
940 select->widget.move = select_move;
941 select->widget.field_focus = select_field_focus;
942 select->widget.focussed_attr = A_REVERSE;
943 select->widget.unfocussed_attr = A_NORMAL;
949 talloc_set_destructor(select, select_destructor);
954 static int widget_select_fold_cb(void *arg, const char *buf, int len)
956 struct nc_widget_select *select = arg;
957 char *line, *newstr, *padbuf = NULL;
963 line = talloc_strndup(select->options, buf, len);
965 i = select->n_options - 1;
966 pad = max(0, select->widget.width - strncols(line));
969 padbuf = talloc_array(select->options, char, pad + 1);
970 memset(padbuf, ' ', pad);
974 if (select->options[i].str)
975 newstr = talloc_asprintf_append(select->options[i].str,
979 newstr = talloc_asprintf(select->options, "%s%s", line,
982 select->options[i].str = newstr;
983 select->options[i].lines++;
990 void widget_select_add_option(struct nc_widget_select *select, int value,
991 const char *text, bool selected)
998 /* if we never see an option with selected set, we want the first
999 * one to be selected */
1000 if (select->n_options == 0)
1003 select_option_change(&select->options[select->selected_option],
1007 select->selected_option = select->n_options;
1008 str = select_selected_str;
1010 str = select_unselected_str;
1012 i = select->n_options++;
1013 select->options = talloc_realloc(select, select->options,
1014 struct select_option, i + 2);
1015 select->options[i].val = value;
1016 select->options[i].lines = 0;
1017 select->options[i].str = NULL;
1019 full_text = talloc_asprintf(select->options, "%s %s", str, text);
1020 fold_text(full_text, select->widget.width,
1021 widget_select_fold_cb, select);
1023 select->options[i].field = f = new_field(select->options[i].lines,
1025 select->top + select->widget.height,
1026 select->left, 0, 0);
1028 select->widget.height += select->options[i].lines;
1030 field_opts_off(f, O_EDIT);
1031 set_field_userptr(f, &select->widget);
1032 set_field_buffer(f, 0, select->options[i].str);
1034 widgetset_add_field(select->set, f);
1035 talloc_free(full_text);
1038 int widget_select_get_value(struct nc_widget_select *select)
1040 if (!select->n_options)
1042 return select->options[select->selected_option].val;
1045 int widget_select_height(struct nc_widget_select *select)
1047 return select->widget.height;
1050 void widget_select_on_change(struct nc_widget_select *select,
1051 void (*on_change)(void *, int), void *arg)
1053 select->on_change = on_change;
1054 select->on_change_arg = arg;
1057 void widget_select_drop_options(struct nc_widget_select *select)
1059 struct nc_widgetset *set = select->set;
1062 for (i = 0; i < select->n_options; i++) {
1063 FIELD *field = select->options[i].field;
1064 widgetset_remove_field(set, field);
1065 if (field == set->cur_field)
1066 set->cur_field = NULL;
1067 free_field(select->options[i].field);
1070 talloc_free(select->options);
1071 select->options = NULL;
1072 select->n_options = 0;
1073 select->widget.height = 0;
1074 select->widget.focus_y = 0;
1078 static bool button_process_key(struct nc_widget *widget,
1079 FORM *form __attribute__((unused)), int key)
1081 struct nc_widget_button *button = to_button(widget);
1086 if (!key_is_select(key))
1089 button->click(button->arg);
1093 static int button_destructor(void *ptr)
1095 struct nc_widget_button *button = ptr;
1096 free_field(button->widget.field);
1100 struct nc_widget_button *widget_new_button(struct nc_widgetset *set,
1101 int y, int x, int size, const char *str,
1102 void (*click)(void *), void *arg)
1104 struct nc_widget_button *button;
1105 int idx, len, pad1, pad2, bufsz;
1109 int field_size = size + 2;
1111 button = talloc_zero(set, struct nc_widget_button);
1112 button->widget.height = 1;
1113 button->widget.width = field_size;
1114 button->widget.x = x;
1115 button->widget.y = y;
1116 button->widget.field = f = new_field(1, field_size, y, x, 0, 0);
1117 button->widget.process_key = button_process_key;
1118 button->widget.focussed_attr = A_REVERSE;
1119 button->widget.unfocussed_attr = A_NORMAL;
1120 button->click = click;
1123 field_opts_off(f, O_EDIT);
1124 set_field_userptr(f, &button->widget);
1126 /* Center str in the field. This depends on the number of columns used
1127 * by the string, not the number of chars in str */
1128 len = strncols(str);
1130 idx = (field_size - len) / 2;
1133 pb_log("Warning: '%s' %d columns wide "
1134 "but button is %d columns wide\n",
1138 pad1 = max(idx - 1, 0);
1139 pad2 = max(size - len - pad1, 0);
1140 bufsz = 1 + pad1 + strlen(str) + pad2 + 2;
1142 text = talloc_array(button, char, bufsz);
1143 memset(text, ' ', bufsz);
1144 memcpy(text + idx, str, strlen(str));
1146 text[bufsz - 2] = ']';
1147 text[bufsz - 1] = '\0';
1149 set_field_buffer(f, 0, text);
1151 widgetset_add_field(set, button->widget.field);
1152 talloc_set_destructor(button, button_destructor);
1157 void widget_focus_change(struct nc_widget *widget, FIELD *field,
1160 int attr = focussed ? widget->focussed_attr : widget->unfocussed_attr;
1161 set_field_back(field, attr);
1164 bool widgetset_process_key(struct nc_widgetset *set, int key)
1166 struct nc_widget *widget;
1171 field = current_field(set->form);
1174 widget = field_userptr(field);
1176 if (widget->process_key)
1177 if (widget->process_key(widget, set->form, key))
1182 /* handle field change events */
1188 req = REQ_SPREV_FIELD;
1194 req = REQ_SNEXT_FIELD;
1197 req = REQ_SFIRST_FIELD;
1200 req = REQ_SLAST_FIELD;
1203 req = REQ_LEFT_FIELD;
1206 req = REQ_RIGHT_FIELD;
1211 widget_focus_change(widget, field, false);
1212 form_driver(set->form, req);
1214 /* if we're doing a tabbed-field-change, skip until we
1215 * see the next widget */
1217 field = current_field(set->form);
1219 for (; tab && tmp != field && field_userptr(field) == widget;) {
1220 form_driver(set->form, req);
1221 field = current_field(set->form);
1224 form_driver(set->form, REQ_END_FIELD);
1225 widget = field_userptr(field);
1226 widget_focus_change(widget, field, true);
1227 if (widget->field_focus)
1228 widget->field_focus(widget, field);
1229 if (set->widget_focus)
1230 set->widget_focus(widget, set->widget_focus_arg);
1237 static int widgetset_destructor(void *ptr)
1239 struct nc_widgetset *set = ptr;
1240 free_form(set->form);
1242 free_fieldtype(set->ip_type);
1243 if (set->ip_multi_type)
1244 free_fieldtype(set->ip_multi_type);
1246 free_fieldtype(set->url_type);
1250 struct nc_widgetset *widgetset_create(void *ctx, WINDOW *main, WINDOW *sub)
1252 struct nc_widgetset *set;
1254 set = talloc_zero(ctx, struct nc_widgetset);
1255 set->n_alloc_fields = 8;
1256 set->mainwin = main;
1258 set->fields = talloc_array(set, FIELD *, set->n_alloc_fields);
1259 talloc_set_destructor(set, widgetset_destructor);
1264 void widgetset_set_windows(struct nc_widgetset *set,
1265 WINDOW *main, WINDOW *sub)
1267 set->mainwin = main;
1271 void widgetset_set_widget_focus(struct nc_widgetset *set,
1272 widget_focus_cb cb, void *arg)
1274 set->widget_focus = cb;
1275 set->widget_focus_arg = arg;
1278 void widgetset_post(struct nc_widgetset *set)
1280 struct nc_widget *widget;
1283 set->form = new_form(set->fields);
1284 set_form_win(set->form, set->mainwin);
1285 set_form_sub(set->form, set->subwin);
1286 post_form(set->form);
1287 form_driver(set->form, REQ_END_FIELD);
1290 set_current_field(set->form, set->cur_field);
1292 field = current_field(set->form);
1293 widget = field_userptr(field);
1294 widget_focus_change(widget, field, true);
1295 if (set->widget_focus)
1296 set->widget_focus(widget, set->widget_focus_arg);
1299 void widgetset_unpost(struct nc_widgetset *set)
1301 set->cur_field = current_field(set->form);
1302 unpost_form(set->form);
1303 free_form(set->form);
1307 static void widgetset_add_field(struct nc_widgetset *set, FIELD *field)
1309 if (set->n_fields == set->n_alloc_fields - 1) {
1310 set->n_alloc_fields *= 2;
1311 set->fields = talloc_realloc(set, set->fields,
1312 FIELD *, set->n_alloc_fields);
1316 set->fields[set->n_fields - 1] = field;
1317 set->fields[set->n_fields] = NULL;
1320 static void widgetset_remove_field(struct nc_widgetset *set, FIELD *field)
1324 for (i = 0; i < set->n_fields; i++) {
1325 if (set->fields[i] == field)
1329 if (i == set->n_fields)
1332 memmove(&set->fields[i], &set->fields[i+i],
1333 (set->n_fields - i) * sizeof(set->fields[i]));
1337 #define DECLARE_BASEFN(type) \
1338 struct nc_widget *widget_ ## type ## _base \
1339 (struct nc_widget_ ## type *w) \
1340 { return &w->widget; }
1342 DECLARE_BASEFN(textbox);
1343 DECLARE_BASEFN(checkbox);
1344 DECLARE_BASEFN(subset);
1345 DECLARE_BASEFN(select);
1346 DECLARE_BASEFN(label);
1347 DECLARE_BASEFN(button);
1349 void widget_set_visible(struct nc_widget *widget, bool visible)
1351 if (widget->set_visible)
1352 widget->set_visible(widget, visible);
1354 field_set_visible(widget->field, visible);
1357 void widget_move(struct nc_widget *widget, int y, int x)
1360 widget->move(widget, y, x);
1362 field_move(widget->field, y, x);
1367 if (x + widget->width > COLS)
1368 pb_debug("%s: Widget at %d,%d runs over pad! (%d)", __func__,
1369 y, x, x + widget->width);
1372 int widget_height(struct nc_widget *widget)
1374 return widget->height;
1377 int widget_width(struct nc_widget *widget)
1379 return widget->width;
1382 int widget_x(struct nc_widget *widget)
1387 int widget_y(struct nc_widget *widget)
1392 int widget_focus_y(struct nc_widget *widget)
1394 return widget->focus_y;