#include <grub/term.h>
#include <grub/misc.h>
#include <grub/loader.h>
+#include <grub/mm.h>
#include <grub/machine/time.h>
/* FIXME: These below are all runaround. */
#define DISP_LL 0x2517
#define DISP_LR 0x251B
+/* FIXME: These should be dynamically obtained from a terminal. */
+#define TERM_WIDTH (80 - 1)
+#define TERM_HEIGHT 25
+
+/* The number of lines of "GRUB version..." at the top. */
+#define TERM_INFO_HEIGHT 1
+
+/* The number of columns/lines between messages/borders/etc. */
+#define TERM_MARGIN 1
+
+/* The number of columns of scroll information. */
+#define TERM_SCROLL_WIDTH 1
+
+/* The Y position of the top border. */
+#define TERM_TOP_BORDER_Y (TERM_MARGIN + TERM_HEIGHT + TERM_MARGIN)
+
+/* The X position of the left border. */
+#define TERM_LEFT_BORDER_X TERM_MARGIN
+
+/* The width of the border. */
+#define TERM_BORDER_WIDTH (TERM_WIDTH \
+ - TERM_MARGIN * 3 \
+ - TERM_SCROLL_WIDTH)
+
+/* The number of lines of messages at the bottom. */
+#define TERM_MESSAGE_HEIGHT 8
+
+/* The height of the border. */
+#define TERM_BORDER_HEIGHT (TERM_HEIGHT \
+ - TERM_TOP_BORDER_Y \
+ - TERM_MESSAGE_HEIGHT)
+
+/* The number of entries shown at a time. */
+#define TERM_NUM_ENTRIES (TERM_BORDER_HEIGHT - 2)
+
+/* The Y position of the first entry. */
+#define TERM_FIRST_ENTRY_Y (TERM_TOP_BORDER_Y + 1)
+
+/* The max column number of an entry. The last "-1" is for a
+ continuation marker. */
+#define TERM_ENTRY_WIDTH (TERM_BORDER_WIDTH - 2 - TERM_MARGIN * 2 - 1)
+
+/* The standard X position of the cursor. */
+#define TERM_CURSOR_X (TERM_LEFT_BORDER_X \
+ + TERM_BORDER_WIDTH \
+ - TERM_MARGIN \
+ - 1)
+
static void
draw_border (void)
{
grub_setcolorstate (GRUB_TERM_COLOR_NORMAL);
- grub_gotoxy (1, 3);
+ grub_gotoxy (TERM_MARGIN, TERM_TOP_BORDER_Y);
grub_putcode (DISP_UL);
- for (i = 0; i < 73; i++)
+ for (i = 0; i < TERM_BORDER_WIDTH - 2; i++)
grub_putcode (DISP_HLINE);
grub_putcode (DISP_UR);
i = 1;
while (1)
{
- grub_gotoxy (1, 3 + i);
+ grub_gotoxy (TERM_MARGIN, TERM_TOP_BORDER_Y + i);
- if (i > 12)
+ if (i > (unsigned) TERM_NUM_ENTRIES)
break;
grub_putcode (DISP_VLINE);
- grub_gotoxy (75, 3 + i);
+ grub_gotoxy (TERM_MARGIN + TERM_BORDER_WIDTH - 1, TERM_TOP_BORDER_Y + i);
grub_putcode (DISP_VLINE);
i++;
}
grub_putcode (DISP_LL);
- for (i = 0; i < 73; i++)
+ for (i = 0; i < TERM_BORDER_WIDTH - 2; i++)
grub_putcode (DISP_HLINE);
grub_putcode (DISP_LR);
}
static void
-print_message (int nested)
+print_message (int nested, int edit)
{
- grub_printf ("\n\
+ if (edit)
+ {
+ grub_printf ("\n\
+ Minimum Emacs-like screen editing is supported. TAB lists\n\
+ available completions. Press C-x (\'x\' with Ctrl) to boot,\n\
+ C-c (\'c\' with Ctrl) for a command-line or ESC to return menu.");
+ }
+ else
+ {
+ grub_printf ("\n\
Use the %C and %C keys to select which entry is highlighted.\n",
- (grub_uint32_t) DISP_UP, (grub_uint32_t) DISP_DOWN);
- grub_printf ("\
+ (grub_uint32_t) DISP_UP, (grub_uint32_t) DISP_DOWN);
+ grub_printf ("\
Press enter to boot the selected OS, \'e\' to edit the\n\
- commands before booting, or \'c\' for a command-line.");
- if (nested)
- grub_printf ("\n\
+ commands before booting or \'c\' for a command-line.");
+ if (nested)
+ grub_printf ("\n\
ESC to return previous menu.");
+ }
+
}
static grub_menu_entry_t
? GRUB_TERM_COLOR_HIGHLIGHT
: GRUB_TERM_COLOR_NORMAL);
- grub_gotoxy (2, y);
+ grub_gotoxy (TERM_LEFT_BORDER_X + TERM_MARGIN, y);
grub_putchar (' ');
- for (x = 3; x < 75; x++)
+ for (x = TERM_LEFT_BORDER_X + TERM_MARGIN + 1;
+ x < TERM_LEFT_BORDER_X + TERM_BORDER_WIDTH - 1;
+ x++)
{
- if (*title && x <= 72)
+ if (*title && x <= TERM_LEFT_BORDER_X + TERM_ENTRY_WIDTH + 1)
{
- if (x == 72)
+ if (x == TERM_LEFT_BORDER_X + TERM_ENTRY_WIDTH + 1)
grub_putcode (DISP_RIGHT);
else
grub_putchar (*title++);
else
grub_putchar (' ');
}
- grub_gotoxy (74, y);
+ grub_gotoxy (TERM_CURSOR_X, y);
grub_setcolorstate (GRUB_TERM_COLOR_STANDARD);
}
grub_menu_entry_t e;
int i;
- grub_gotoxy (77, 4);
+ grub_gotoxy (TERM_LEFT_BORDER_X + TERM_BORDER_WIDTH + TERM_MARGIN,
+ TERM_FIRST_ENTRY_Y);
if (first)
grub_putcode (DISP_UP);
e = get_entry (menu, first);
- for (i = 0; i < 12; i++)
+ for (i = 0; i < TERM_NUM_ENTRIES; i++)
{
- print_entry (4 + i, offset == i, e);
+ print_entry (TERM_FIRST_ENTRY_Y + i, offset == i, e);
if (e)
e = e->next;
}
- grub_gotoxy (77, 4 + 12);
+ grub_gotoxy (TERM_LEFT_BORDER_X + TERM_BORDER_WIDTH + TERM_MARGIN,
+ TERM_TOP_BORDER_Y + TERM_NUM_ENTRIES);
if (e)
grub_putcode (DISP_DOWN);
else
grub_putchar (' ');
- grub_gotoxy (74, 4 + offset);
+ grub_gotoxy (TERM_CURSOR_X, TERM_FIRST_ENTRY_Y + offset);
}
static void
-init_page (int nested)
+init_page (int nested, int edit)
{
grub_normal_init_page ();
draw_border ();
- print_message (nested);
+ print_message (nested, edit);
+}
+
+/* Edit a menu entry with an Emacs-like interface. */
+static void
+edit_menu_entry (grub_menu_entry_t entry)
+{
+ /* Not yet implemented. */
}
static int
int first, offset;
unsigned long saved_time;
- grub_setcursor (0);
-
first = 0;
offset = menu->default_entry;
- if (offset > 11)
+ if (offset > TERM_NUM_ENTRIES - 1)
{
- first = offset - 11;
- offset = 11;
+ first = offset - (TERM_NUM_ENTRIES - 1);
+ offset = TERM_NUM_ENTRIES - 1;
}
- init_page (nested);
+ /* Initialize the time. */
+ saved_time = grub_get_rtc ();
+
+ refresh:
+ grub_setcursor (0);
+ init_page (nested, 0);
print_entries (menu, first, offset);
grub_refresh ();
- /* Initialize the time. */
- saved_time = grub_get_rtc ();
-
while (1)
{
int c;
saved_time = current_time;
}
- grub_gotoxy (3, 22);
- grub_printf ("The highlighted entry will be booted automatically in %d seconds. ",
+ grub_gotoxy (0, TERM_HEIGHT - 3);
+ /* NOTE: Do not remove the trailing space characters.
+ They are required to clear the line. */
+ grub_printf ("\
+ The highlighted entry will be booted automatically in %d seconds. ",
menu->timeout);
- grub_gotoxy (74, 4 + offset);
+ grub_gotoxy (TERM_CURSOR_X, TERM_FIRST_ENTRY_Y + offset);
grub_refresh ();
}
if (menu->timeout >= 0)
{
- grub_gotoxy (3, 22);
- grub_printf (" ");
+ grub_gotoxy (0, TERM_HEIGHT - 3);
+ grub_printf ("\
+ ");
menu->timeout = -1;
menu->fallback_entry = -1;
- grub_gotoxy (74, 4 + offset);
+ grub_gotoxy (TERM_CURSOR_X, TERM_FIRST_ENTRY_Y + offset);
}
switch (c)
case '^':
if (offset > 0)
{
- print_entry (4 + offset, 0,
+ print_entry (TERM_FIRST_ENTRY_Y + offset, 0,
get_entry (menu, first + offset));
offset--;
- print_entry (4 + offset, 1,
+ print_entry (TERM_FIRST_ENTRY_Y + offset, 1,
get_entry (menu, first + offset));
}
else if (first > 0)
case 'v':
if (menu->size > first + offset + 1)
{
- if (offset < 11)
+ if (offset < TERM_NUM_ENTRIES - 1)
{
- print_entry (4 + offset, 0,
+ print_entry (TERM_FIRST_ENTRY_Y + offset, 0,
get_entry (menu, first + offset));
offset++;
- print_entry (4 + offset, 1,
+ print_entry (TERM_FIRST_ENTRY_Y + offset, 1,
get_entry (menu, first + offset));
}
else
case 'c':
grub_setcursor (1);
grub_cmdline_run (1);
- grub_setcursor (0);
- init_page (nested);
- print_entries (menu, first, offset);
- break;
+ goto refresh;
+
+ case 'e':
+ edit_menu_entry (get_entry (menu, first + offset));
+ goto refresh;
default:
break;
for (cl = entry->command_list; cl != 0; cl = cl->next)
{
grub_command_t c;
+
+ if (cl->command[0] == '\0')
+ /* Ignore an empty command line. */
+ continue;
c = grub_command_find (cl->command);
if (! c)
projects / thirdparty / grub.git / commitdiff
