u-boot/scripts/kconfig/lxdialog/inputbox.c

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// 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;
kconfig / kbuild: re-sync with Linux 4.18 Align Kconfig and Kbuild logic to Linux 4.18 release with minimal impact on files outside of this scope. Our previous Kconfig sync was done by commit e91610da7c8a ("kconfig: re-sync with Linux 4.17-rc4"). A very small number of changes upstream since our sync with v4.17-rc4 that exist in the v4.18 release have already been applied here and have been omitted from the list in this commit (and are readily available in our own git history). The imported Linux commits are: [From prior to v4.17-rc4] 39a33ff80a25 kbuild: remove cc-option-align db547ef19064 Kbuild: don't add obj tree in additional includes b999596b963a Kbuild: don't add ../../ to include path [From v4.17 to v4.18] b3aa58d2e85d fixdep: suppress consecutive / from file paths in dependency list files 74656b682902 kbuild: disable new dtc graph and unit-address warnings 74d931716151 genksyms: remove symbol prefix support e6ecfb45072c kbuild: do not display CHK for filechk 0b669a5076fd kconfig: refactor Qt package checks for building qconf b464ef583dc7 kconfig: refactor GTK+ package checks for building gconf 1c5af5cf9308 kconfig: refactor ncurses package checks for building mconf and nconf 694c49a7c01c kconfig: drop localization support 96f60dfa5819 trace: Use -mcount-record for dynamic ftrace bb222ceeb327 kconfig: remove string expansion in file_lookup() 96d8e48da55a kconfig: remove string expansion for mainmenu after yyparse() 5b31a9746756 kconfig: remove sym_expand_string_value() 137c0118a900 kconfig: make default prompt of mainmenu less specific e298f3b49def kconfig: add built-in function support 2fd5b09c201e kconfig: add 'shell' built-in function 9de071536c87 kconfig: begin PARAM state only when seeing a command keyword 9ced3bddec08 kconfig: support user-defined function and recursively expanded variable 1175c02506ff kconfig: support simply expanded variable ed2a22f277c6 kconfig: support append assignment operator 82bc8bd82e5c kconfig: expand lefthand side of assignment statement 1d6272e6fe43 kconfig: add 'info', 'warning-if', and 'error-if' built-in functions a702a6176e2f kconfig: add 'filename' and 'lineno' built-in variables 915f64901eb3 kconfig: error out if a recursive variable references itself 2bece88f89fa kconfig: test: add Kconfig macro language tests 21c54b774744 kconfig: show compiler version text in the top comment 59f7b5847b0c kbuild: $(CHECK) doesnt need NOSTDINC_FLAGS twice 145167650b96 kbuild: add endianness flag to CHEKCFLAGS 1f2f01b122d7 kbuild: add machine size to CHECKFLAGS d6a0c8a1326b kconfig: Add testconfig into make help output bb6d83dde191 kbuild: Move last word of nconfig help to the previous line 8593080c0fcf kconfig: fix localmodconfig ed7d40bc67b8 tracing: Fix SKIP_STACK_VALIDATION=1 build due to bad merge with -mrecord-mcount b2d00d7c61c8 kconfig: fix line numbers for if-entries in menu tree ecd53ac2f2c6 kconfig: handle P_SYMBOL in print_symbol() 73d1c580f92b kconfig: loop boundary condition fix 48f6e3cf5bc6 kbuild: do not drop -I without parameter bd412d81b7ea kbuild: .PHONY is not a variable, but PHONY is 6916162c7308 kbuild: remove duplicated comments about PHONY Cc: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
2020-03-11 22:11:17 +00:00
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
strcpy(instr, init);
do_resize:
if (getmaxy(stdscr) <= (height - INPUTBOX_HEIGTH_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 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 */
}