rulimine/stage2/menu.c
2020-09-14 19:32:11 +02:00

112 lines
3.1 KiB
C

#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#include <limine.h>
#include <menu.h>
#include <lib/print.h>
#include <lib/blib.h>
#include <lib/libc.h>
#include <lib/config.h>
#include <lib/term.h>
static char *cmdline;
#define CMDLINE_MAX 1024
static char config_entry_name[1024];
char *menu(void) {
cmdline = balloc(CMDLINE_MAX);
char buf[16];
if (config_get_value(buf, 0, 16, "GRAPHICS")) {
if (!strcmp(buf, "on")) {
term_vbe();
}
}
int timeout;
if (!config_get_value(buf, 0, 16, "TIMEOUT")) {
timeout = 5;
} else {
timeout = (int)strtoui(buf);
}
disable_cursor();
int selected_entry = 0;
bool skip_timeout = false;
refresh:
clear(true);
print("\n\n \e[36m Limine " LIMINE_VERSION " \e[37m\n\n\n");
print("Select an entry:\n\n");
int max_entries;
for (max_entries = 0; ; max_entries++) {
if (config_get_entry_name(config_entry_name, max_entries, 1024) == -1)
break;
if (max_entries == selected_entry)
print(" \e[47m\e[30m %s \e[40m\e[37m\n", config_entry_name);
else
print(" %s\n", config_entry_name);
}
if (max_entries == 0)
panic("Config contains no entries.");
print("\n");
if (skip_timeout == false) {
for (int i = timeout; i; i--) {
print("\rBooting automatically in %u, press any key to stop the countdown...", i);
if (pit_sleep_and_quit_on_keypress(18)) {
skip_timeout = true;
goto refresh;
}
}
goto autoboot;
}
print("Arrows to choose, enter to select, 'e' to edit command line.");
for (;;) {
int c = getchar();
switch (c) {
case GETCHAR_CURSOR_UP:
if (--selected_entry == -1)
selected_entry = max_entries - 1;
goto refresh;
case GETCHAR_CURSOR_DOWN:
if (++selected_entry == max_entries)
selected_entry = 0;
goto refresh;
case '\r':
autoboot:
config_set_entry(selected_entry);
enable_cursor();
if (!config_get_value(cmdline, 0, CMDLINE_MAX, "KERNEL_CMDLINE")) {
if (!config_get_value(cmdline, 0, CMDLINE_MAX, "CMDLINE")) {
cmdline[0] = '\0';
}
}
clear(true);
term_textmode();
return cmdline;
case 'e':
config_set_entry(selected_entry);
enable_cursor();
if (!config_get_value(cmdline, 0, CMDLINE_MAX, "KERNEL_CMDLINE")) {
if (!config_get_value(cmdline, 0, CMDLINE_MAX, "CMDLINE")) {
cmdline[0] = '\0';
}
}
print("\n\n> ");
gets(cmdline, cmdline, CMDLINE_MAX);
clear(true);
term_textmode();
return cmdline;
}
}
}