// SPDX-License-Identifier: GPL-2.0+/* * inputbox.c -- implements the input box * * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk) * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com) */ #include "dialog.h" char dialog_input_result[MAX_LEN + 1]; /* * Print the termination buttons */static void print_buttons(WINDOW * dialog, int height, int width, int selected){ int x = width / 2 - 11; int y = height - 2; print_button(dialog, " Ok ", y, x, selected == 0); print_button(dialog, " Help ", y, x + 14, selected == 1); wmove(dialog, y, x + 1 + 14 * selected); wrefresh(dialog);} /* * Display a dialog box for inputing a string */int dialog_inputbox(const char *title, const char *prompt, int height, int width, const char *init){ int i, x, y, box_y, box_x, box_width; int input_x = 0, key = 0, button = -1; int show_x, len, pos; char *instr = dialog_input_result; WINDOW *dialog; if (!init) instr[0] = '\0'; else { strncpy(instr, init, sizeof(dialog_input_result) - 1); instr[sizeof(dialog_input_result) - 1] = '\0'; } do_resize: if (getmaxy(stdscr) <= (height - INPUTBOX_HEIGHT_MIN)) return -ERRDISPLAYTOOSMALL; if (getmaxx(stdscr) <= (width - INPUTBOX_WIDTH_MIN)) return -ERRDISPLAYTOOSMALL; /* center dialog box on screen */ x = (getmaxx(stdscr) - width) / 2; y = (getmaxy(stdscr) - height) / 2; draw_shadow(stdscr, y, x, height, width); dialog = newwin(height, width, y, x); keypad(dialog, TRUE); draw_box(dialog, 0, 0, height, width, dlg.dialog.atr, dlg.border.atr); wattrset(dialog, dlg.border.atr); mvwaddch(dialog, height - 3, 0, ACS_LTEE); for (i = 0; i < width - 2; i++) waddch(dialog, ACS_HLINE); wattrset(dialog, dlg.dialog.atr); waddch(dialog, ACS_RTEE); print_title(dialog, title, width); wattrset(dialog, dlg.dialog.atr); print_autowrap(dialog, prompt, width - 2, 1, 3); /* Draw the input field box */ box_width = width - 6; getyx(dialog, y, x); box_y = y + 2; box_x = (width - box_width) / 2; draw_box(dialog, y + 1, box_x - 1, 3, box_width + 2, dlg.dialog.atr, dlg.border.atr); print_buttons(dialog, height, width, 0); /* Set up the initial value */ wmove(dialog, box_y, box_x); wattrset(dialog, dlg.inputbox.atr); len = strlen(instr); pos = len; if (len >= box_width) { show_x = len - box_width + 1; input_x = box_width - 1; for (i = 0; i < box_width - 1; i++) waddch(dialog, instr[show_x + i]); } else { show_x = 0; input_x = len; waddstr(dialog, instr); } wmove(dialog, box_y, box_x + input_x); wrefresh(dialog); while (key != KEY_ESC) { key = wgetch(dialog); if (button == -1) { /* Input box selected */ switch (key) { case TAB: case KEY_UP: case KEY_DOWN: break; case KEY_BACKSPACE: case 8: /* ^H */ case 127: /* ^? */ if (pos) { wattrset(dialog, dlg.inputbox.atr); if (input_x == 0) { show_x--; } else input_x--; if (pos < len) { for (i = pos - 1; i < len; i++) { instr[i] = instr[i+1]; } } pos--; len--; instr[len] = '\0'; wmove(dialog, box_y, box_x); for (i = 0; i < box_width; i++) { if (!instr[show_x + i]) { waddch(dialog, ' '); break; } waddch(dialog, instr[show_x + i]); } wmove(dialog, box_y, input_x + box_x); wrefresh(dialog); } continue; case KEY_LEFT: if (pos > 0) { if (input_x > 0) { wmove(dialog, box_y, --input_x + box_x); } else if (input_x == 0) { show_x--; wmove(dialog, box_y, box_x); for (i = 0; i < box_width; i++) { if (!instr[show_x + i]) { waddch(dialog, ' '); break; } waddch(dialog, instr[show_x + i]); } wmove(dialog, box_y, box_x); } pos--; } continue; case KEY_RIGHT: if (pos < len) { if (input_x < box_width - 1) { wmove(dialog, box_y, ++input_x + box_x); } else if (input_x == box_width - 1) { show_x++; wmove(dialog, box_y, box_x); for (i = 0; i < box_width; i++) { if (!instr[show_x + i]) { waddch(dialog, ' '); break; } waddch(dialog, instr[show_x + i]); } wmove(dialog, box_y, input_x + box_x); } pos++; } continue; default: if (key < 0x100 && isprint(key)) { if (len < MAX_LEN) { wattrset(dialog, dlg.inputbox.atr); if (pos < len) { for (i = len; i > pos; i--) instr[i] = instr[i-1]; instr[pos] = key; } else { instr[len] = key; } pos++; len++; instr[len] = '\0'; if (input_x == box_width - 1) { show_x++; } else { input_x++; } wmove(dialog, box_y, box_x); for (i = 0; i < box_width; i++) { if (!instr[show_x + i]) { waddch(dialog, ' '); break; } waddch(dialog, instr[show_x + i]); } wmove(dialog, box_y, input_x + box_x); wrefresh(dialog); } else flash(); /* Alarm user about overflow */ continue; } } } switch (key) { case 'O': case 'o': delwin(dialog); return 0; case 'H': case 'h': delwin(dialog); return 1; case KEY_UP: case KEY_LEFT: switch (button) { case -1: button = 1; /* Indicates "Help" button is selected */ print_buttons(dialog, height, width, 1); break; case 0: button = -1; /* Indicates input box is selected */ print_buttons(dialog, height, width, 0); wmove(dialog, box_y, box_x + input_x); wrefresh(dialog); break; case 1: button = 0; /* Indicates "OK" button is selected */ print_buttons(dialog, height, width, 0); break; } break; case TAB: case KEY_DOWN: case KEY_RIGHT: switch (button) { case -1: button = 0; /* Indicates "OK" button is selected */ print_buttons(dialog, height, width, 0); break; case 0: button = 1; /* Indicates "Help" button is selected */ print_buttons(dialog, height, width, 1); break; case 1: button = -1; /* Indicates input box is selected */ print_buttons(dialog, height, width, 0); wmove(dialog, box_y, box_x + input_x); wrefresh(dialog); break; } break; case ' ': case '\n': delwin(dialog); return (button == -1 ? 0 : button); case 'X': case 'x': key = KEY_ESC; break; case KEY_ESC: key = on_key_esc(dialog); break; case KEY_RESIZE: delwin(dialog); on_key_resize(); goto do_resize; } } delwin(dialog); return KEY_ESC; /* ESC pressed */}
// SPDX-License-Identifier: GPL-2.0+
/*
* inputbox.c -- implements the input box
*
* ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
* MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
*/
#include "dialog.h"
char dialog_input_result[MAX_LEN + 1];
/*
* Print the termination buttons
*/
static void print_buttons(WINDOW * dialog, int height, int width, int selected)
{
int x = width / 2 - 11;
int y = height - 2;
print_button(dialog, " Ok ", y, x, selected == 0);
print_button(dialog, " Help ", y, x + 14, selected == 1);
wmove(dialog, y, x + 1 + 14 * selected);
wrefresh(dialog);
}
/*
* Display a dialog box for inputing a string
*/
int dialog_inputbox(const char *title, const char *prompt, int height, int width,
const char *init)
{
int i, x, y, box_y, box_x, box_width;
int input_x = 0, key = 0, button = -1;
int show_x, len, pos;
char *instr = dialog_input_result;
WINDOW *dialog;
if (!init)
instr[0] = '\0';
else {
strncpy(instr, init, sizeof(dialog_input_result) - 1);
instr[sizeof(dialog_input_result) - 1] = '\0';
}
do_resize:
if (getmaxy(stdscr) <= (height - INPUTBOX_HEIGHT_MIN))
return -ERRDISPLAYTOOSMALL;
if (getmaxx(stdscr) <= (width - INPUTBOX_WIDTH_MIN))
return -ERRDISPLAYTOOSMALL;
/* center dialog box on screen */
x = (getmaxx(stdscr) - width) / 2;
y = (getmaxy(stdscr) - height) / 2;
draw_shadow(stdscr, y, x, height, width);
dialog = newwin(height, width, y, x);
keypad(dialog, TRUE);
draw_box(dialog, 0, 0, height, width,
dlg.dialog.atr, dlg.border.atr);
wattrset(dialog, dlg.border.atr);
mvwaddch(dialog, height - 3, 0, ACS_LTEE);
for (i = 0; i < width - 2; i++)
waddch(dialog, ACS_HLINE);
wattrset(dialog, dlg.dialog.atr);
waddch(dialog, ACS_RTEE);
print_title(dialog, title, width);
wattrset(dialog, dlg.dialog.atr);
print_autowrap(dialog, prompt, width - 2, 1, 3);
/* Draw the input field box */
box_width = width - 6;
getyx(dialog, y, x);
box_y = y + 2;
box_x = (width - box_width) / 2;
draw_box(dialog, y + 1, box_x - 1, 3, box_width + 2,
dlg.dialog.atr, dlg.border.atr);
print_buttons(dialog, height, width, 0);
/* Set up the initial value */
wmove(dialog, box_y, box_x);
wattrset(dialog, dlg.inputbox.atr);
len = strlen(instr);
pos = len;
if (len >= box_width) {
show_x = len - box_width + 1;
input_x = box_width - 1;
for (i = 0; i < box_width - 1; i++)
waddch(dialog, instr[show_x + i]);
} else {
show_x = 0;
input_x = len;
waddstr(dialog, instr);
}
wmove(dialog, box_y, box_x + input_x);
wrefresh(dialog);
while (key != KEY_ESC) {
key = wgetch(dialog);
if (button == -1) { /* Input box selected */
switch (key) {
case TAB:
case KEY_UP:
case KEY_DOWN:
break;
case KEY_BACKSPACE:
case 8: /* ^H */
case 127: /* ^? */
if (pos) {
wattrset(dialog, dlg.inputbox.atr);
if (input_x == 0) {
show_x--;
} else
input_x--;
if (pos < len) {
for (i = pos - 1; i < len; i++) {
instr[i] = instr[i+1];
}
}
pos--;
len--;
instr[len] = '\0';
wmove(dialog, box_y, box_x);
for (i = 0; i < box_width; i++) {
if (!instr[show_x + i]) {
waddch(dialog, ' ');
break;
}
waddch(dialog, instr[show_x + i]);
}
wmove(dialog, box_y, input_x + box_x);
wrefresh(dialog);
}
continue;
case KEY_LEFT:
if (pos > 0) {
if (input_x > 0) {
wmove(dialog, box_y, --input_x + box_x);
} else if (input_x == 0) {
show_x--;
wmove(dialog, box_y, box_x);
for (i = 0; i < box_width; i++) {
if (!instr[show_x + i]) {
waddch(dialog, ' ');
break;
}
waddch(dialog, instr[show_x + i]);
}
wmove(dialog, box_y, box_x);
}
pos--;
}
continue;
case KEY_RIGHT:
if (pos < len) {
if (input_x < box_width - 1) {
wmove(dialog, box_y, ++input_x + box_x);
} else if (input_x == box_width - 1) {
show_x++;
wmove(dialog, box_y, box_x);
for (i = 0; i < box_width; i++) {
if (!instr[show_x + i]) {
waddch(dialog, ' ');
break;
}
waddch(dialog, instr[show_x + i]);
}
wmove(dialog, box_y, input_x + box_x);
}
pos++;
}
continue;
default:
if (key < 0x100 && isprint(key)) {
if (len < MAX_LEN) {
wattrset(dialog, dlg.inputbox.atr);
if (pos < len) {
for (i = len; i > pos; i--)
instr[i] = instr[i-1];
instr[pos] = key;
} else {
instr[len] = key;
}
pos++;
len++;
instr[len] = '\0';
if (input_x == box_width - 1) {
show_x++;
} else {
input_x++;
}
wmove(dialog, box_y, box_x);
for (i = 0; i < box_width; i++) {
if (!instr[show_x + i]) {
waddch(dialog, ' ');
break;
}
waddch(dialog, instr[show_x + i]);
}
wmove(dialog, box_y, input_x + box_x);
wrefresh(dialog);
} else
flash(); /* Alarm user about overflow */
continue;
}
}
}
switch (key) {
case 'O':
case 'o':
delwin(dialog);
return 0;
case 'H':
case 'h':
delwin(dialog);
return 1;
case KEY_UP:
case KEY_LEFT:
switch (button) {
case -1:
button = 1; /* Indicates "Help" button is selected */
print_buttons(dialog, height, width, 1);
break;
case 0:
button = -1; /* Indicates input box is selected */
print_buttons(dialog, height, width, 0);
wmove(dialog, box_y, box_x + input_x);
wrefresh(dialog);
break;
case 1:
button = 0; /* Indicates "OK" button is selected */
print_buttons(dialog, height, width, 0);
break;
}
break;
case TAB:
case KEY_DOWN:
case KEY_RIGHT:
switch (button) {
case -1:
button = 0; /* Indicates "OK" button is selected */
print_buttons(dialog, height, width, 0);
break;
case 0:
button = 1; /* Indicates "Help" button is selected */
print_buttons(dialog, height, width, 1);
break;
case 1:
button = -1; /* Indicates input box is selected */
print_buttons(dialog, height, width, 0);
wmove(dialog, box_y, box_x + input_x);
wrefresh(dialog);
break;
}
break;
case ' ':
case '\n':
delwin(dialog);
return (button == -1 ? 0 : button);
case 'X':
case 'x':
key = KEY_ESC;
break;
case KEY_ESC:
key = on_key_esc(dialog);
break;
case KEY_RESIZE:
delwin(dialog);
on_key_resize();
goto do_resize;
}
}
delwin(dialog);
return KEY_ESC; /* ESC pressed */
}