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-rw-r--r--scripts/kconfig/lxdialog/inputbox.c224
1 files changed, 224 insertions, 0 deletions
diff --git a/scripts/kconfig/lxdialog/inputbox.c b/scripts/kconfig/lxdialog/inputbox.c
new file mode 100644
index 000000000000..779503726b0a
--- /dev/null
+++ b/scripts/kconfig/lxdialog/inputbox.c
@@ -0,0 +1,224 @@
1/*
2 * inputbox.c -- implements the input box
3 *
4 * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
5 * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22#include "dialog.h"
23
24char dialog_input_result[MAX_LEN + 1];
25
26/*
27 * Print the termination buttons
28 */
29static void print_buttons(WINDOW * dialog, int height, int width, int selected)
30{
31 int x = width / 2 - 11;
32 int y = height - 2;
33
34 print_button(dialog, " Ok ", y, x, selected == 0);
35 print_button(dialog, " Help ", y, x + 14, selected == 1);
36
37 wmove(dialog, y, x + 1 + 14 * selected);
38 wrefresh(dialog);
39}
40
41/*
42 * Display a dialog box for inputing a string
43 */
44int dialog_inputbox(const char *title, const char *prompt, int height, int width,
45 const char *init)
46{
47 int i, x, y, box_y, box_x, box_width;
48 int input_x = 0, scroll = 0, key = 0, button = -1;
49 char *instr = dialog_input_result;
50 WINDOW *dialog;
51
52 /* center dialog box on screen */
53 x = (COLS - width) / 2;
54 y = (LINES - height) / 2;
55
56 draw_shadow(stdscr, y, x, height, width);
57
58 dialog = newwin(height, width, y, x);
59 keypad(dialog, TRUE);
60
61 draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
62 wattrset(dialog, border_attr);
63 mvwaddch(dialog, height - 3, 0, ACS_LTEE);
64 for (i = 0; i < width - 2; i++)
65 waddch(dialog, ACS_HLINE);
66 wattrset(dialog, dialog_attr);
67 waddch(dialog, ACS_RTEE);
68
69 print_title(dialog, title, width);
70
71 wattrset(dialog, dialog_attr);
72 print_autowrap(dialog, prompt, width - 2, 1, 3);
73
74 /* Draw the input field box */
75 box_width = width - 6;
76 getyx(dialog, y, x);
77 box_y = y + 2;
78 box_x = (width - box_width) / 2;
79 draw_box(dialog, y + 1, box_x - 1, 3, box_width + 2, border_attr, dialog_attr);
80
81 print_buttons(dialog, height, width, 0);
82
83 /* Set up the initial value */
84 wmove(dialog, box_y, box_x);
85 wattrset(dialog, inputbox_attr);
86
87 if (!init)
88 instr[0] = '\0';
89 else
90 strcpy(instr, init);
91
92 input_x = strlen(instr);
93
94 if (input_x >= box_width) {
95 scroll = input_x - box_width + 1;
96 input_x = box_width - 1;
97 for (i = 0; i < box_width - 1; i++)
98 waddch(dialog, instr[scroll + i]);
99 } else {
100 waddstr(dialog, instr);
101 }
102
103 wmove(dialog, box_y, box_x + input_x);
104
105 wrefresh(dialog);
106
107 while (key != ESC) {
108 key = wgetch(dialog);
109
110 if (button == -1) { /* Input box selected */
111 switch (key) {
112 case TAB:
113 case KEY_UP:
114 case KEY_DOWN:
115 break;
116 case KEY_LEFT:
117 continue;
118 case KEY_RIGHT:
119 continue;
120 case KEY_BACKSPACE:
121 case 127:
122 if (input_x || scroll) {
123 wattrset(dialog, inputbox_attr);
124 if (!input_x) {
125 scroll = scroll < box_width - 1 ? 0 : scroll - (box_width - 1);
126 wmove(dialog, box_y, box_x);
127 for (i = 0; i < box_width; i++)
128 waddch(dialog,
129 instr[scroll + input_x + i] ?
130 instr[scroll + input_x + i] : ' ');
131 input_x = strlen(instr) - scroll;
132 } else
133 input_x--;
134 instr[scroll + input_x] = '\0';
135 mvwaddch(dialog, box_y, input_x + box_x, ' ');
136 wmove(dialog, box_y, input_x + box_x);
137 wrefresh(dialog);
138 }
139 continue;
140 default:
141 if (key < 0x100 && isprint(key)) {
142 if (scroll + input_x < MAX_LEN) {
143 wattrset(dialog, inputbox_attr);
144 instr[scroll + input_x] = key;
145 instr[scroll + input_x + 1] = '\0';
146 if (input_x == box_width - 1) {
147 scroll++;
148 wmove(dialog, box_y, box_x);
149 for (i = 0; i < box_width - 1; i++)
150 waddch(dialog, instr [scroll + i]);
151 } else {
152 wmove(dialog, box_y, input_x++ + box_x);
153 waddch(dialog, key);
154 }
155 wrefresh(dialog);
156 } else
157 flash(); /* Alarm user about overflow */
158 continue;
159 }
160 }
161 }
162 switch (key) {
163 case 'O':
164 case 'o':
165 delwin(dialog);
166 return 0;
167 case 'H':
168 case 'h':
169 delwin(dialog);
170 return 1;
171 case KEY_UP:
172 case KEY_LEFT:
173 switch (button) {
174 case -1:
175 button = 1; /* Indicates "Cancel" button is selected */
176 print_buttons(dialog, height, width, 1);
177 break;
178 case 0:
179 button = -1; /* Indicates input box is selected */
180 print_buttons(dialog, height, width, 0);
181 wmove(dialog, box_y, box_x + input_x);
182 wrefresh(dialog);
183 break;
184 case 1:
185 button = 0; /* Indicates "OK" button is selected */
186 print_buttons(dialog, height, width, 0);
187 break;
188 }
189 break;
190 case TAB:
191 case KEY_DOWN:
192 case KEY_RIGHT:
193 switch (button) {
194 case -1:
195 button = 0; /* Indicates "OK" button is selected */
196 print_buttons(dialog, height, width, 0);
197 break;
198 case 0:
199 button = 1; /* Indicates "Cancel" button is selected */
200 print_buttons(dialog, height, width, 1);
201 break;
202 case 1:
203 button = -1; /* Indicates input box is selected */
204 print_buttons(dialog, height, width, 0);
205 wmove(dialog, box_y, box_x + input_x);
206 wrefresh(dialog);
207 break;
208 }
209 break;
210 case ' ':
211 case '\n':
212 delwin(dialog);
213 return (button == -1 ? 0 : button);
214 case 'X':
215 case 'x':
216 key = ESC;
217 case ESC:
218 break;
219 }
220 }
221
222 delwin(dialog);
223 return -1; /* ESC pressed */
224}
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