1478 lines
33 KiB
C
1478 lines
33 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2005,2006,2007,2008,2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/normal.h>
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#include <grub/term.h>
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#include <grub/misc.h>
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#include <grub/mm.h>
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#include <grub/loader.h>
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#include <grub/command.h>
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#include <grub/parser.h>
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#include <grub/script_sh.h>
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#include <grub/auth.h>
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#include <grub/i18n.h>
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#include <grub/charset.h>
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enum update_mode
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{
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NO_LINE,
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SINGLE_LINE,
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ALL_LINES
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};
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struct line
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{
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/* The line buffer. */
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grub_uint32_t *buf;
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/* The length of the line. */
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int len;
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/* The maximum length of the line. */
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int max_len;
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};
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struct per_term_screen
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{
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struct grub_term_output *term;
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/* The X coordinate. */
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int x;
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/* The Y coordinate. */
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int y;
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int y_line_start;
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/* Number of entries. */
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int num_entries;
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};
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struct screen
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{
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/* The array of lines. */
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struct line *lines;
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/* The number of lines. */
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int num_lines;
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/* The current column. */
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int column;
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/* The real column. */
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int real_column;
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/* The current line. */
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int line;
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/* The kill buffer. */
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char *killed_text;
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/* The flag of a completion window. */
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int completion_shown;
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int submenu;
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struct per_term_screen *terms;
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unsigned nterms;
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};
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/* Used for storing completion items temporarily. */
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static struct {
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char *buf;
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grub_size_t len;
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grub_size_t max_len;
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} completion_buffer;
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static int completion_type;
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/* Initialize a line. */
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static int
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init_line (struct line *linep)
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{
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linep->len = 0;
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linep->max_len = 80;
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linep->buf = grub_malloc ((linep->max_len + 1) * sizeof (linep->buf[0]));
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if (! linep->buf)
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return 0;
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return 1;
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}
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/* Allocate extra space if necessary. */
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static int
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ensure_space (struct line *linep, int extra)
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{
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if (linep->max_len < linep->len + extra)
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{
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linep->max_len = 2 * (linep->len + extra);
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linep->buf = grub_realloc (linep->buf, (linep->max_len + 1) * sizeof (linep->buf[0]));
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if (! linep->buf)
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return 0;
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}
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return 1;
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}
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/* Return the number of lines occupied by this line on the screen. */
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static int
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get_logical_num_lines (struct line *linep, struct per_term_screen *term_screen)
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{
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return (grub_getstringwidth (linep->buf, linep->buf + linep->len,
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term_screen->term)
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/ grub_term_entry_width (term_screen->term)) + 1;
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}
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static void
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advance (struct screen *screen)
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{
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unsigned i;
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struct grub_unicode_glyph glyph;
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screen->column += grub_unicode_aglomerate_comb (screen->lines[screen->line].buf + screen->column,
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screen->lines[screen->line].len - screen->column,
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&glyph);
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for (i = 0; i < screen->nterms; i++)
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{
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grub_ssize_t width;
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width = grub_term_getcharwidth (screen->terms[i].term, &glyph);
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screen->terms[i].x += width;
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if (screen->terms[i].x
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== grub_term_entry_width (screen->terms[i].term))
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{
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screen->terms[i].x = 0;
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screen->terms[i].y++;
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}
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if (screen->terms[i].x
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> grub_term_entry_width (screen->terms[i].term))
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{
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screen->terms[i].x = width;
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screen->terms[i].y++;
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}
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}
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grub_free (glyph.combining);
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}
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static void
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advance_to (struct screen *screen, int c)
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{
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if (c > screen->lines[screen->line].len)
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c = screen->lines[screen->line].len;
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while (screen->column < c)
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advance (screen);
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}
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/* Print a line. */
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static int
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print_line (struct line *linep, int offset, int y,
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struct per_term_screen *term_screen, int dry_run)
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{
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int x;
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int i;
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grub_term_gotoxy (term_screen->term,
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GRUB_TERM_LEFT_BORDER_X + GRUB_TERM_MARGIN + 1,
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y + GRUB_TERM_FIRST_ENTRY_Y);
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x = 0;
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for (i = 0; i + offset < (int) linep->len;)
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{
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grub_ssize_t width;
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grub_size_t delta = 0;
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struct grub_unicode_glyph glyph;
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delta = grub_unicode_aglomerate_comb (linep->buf + offset + i,
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linep->len - offset - i,
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&glyph);
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width = grub_term_getcharwidth (term_screen->term, &glyph);
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grub_free (glyph.combining);
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if (x + width > grub_term_entry_width (term_screen->term) && x != 0)
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break;
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x += width;
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i += delta;
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}
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if (dry_run)
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return i;
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grub_print_ucs4 (linep->buf + offset,
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linep->buf + offset + i, 0, 0, term_screen->term);
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if (i + offset != linep->len)
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grub_putcode ('\\', term_screen->term);
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else
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{
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for (;
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x <= (int) grub_term_entry_width (term_screen->term);
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x++)
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grub_putcode (' ', term_screen->term);
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}
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return i;
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}
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/* Print an empty line. */
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static void
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print_empty_line (int y, struct per_term_screen *term_screen)
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{
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int i;
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grub_term_gotoxy (term_screen->term,
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GRUB_TERM_LEFT_BORDER_X + GRUB_TERM_MARGIN + 1,
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y + GRUB_TERM_FIRST_ENTRY_Y);
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for (i = 0; i < grub_term_entry_width (term_screen->term) + 1; i++)
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grub_putcode (' ', term_screen->term);
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}
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/* Print an up arrow. */
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static void
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print_up (int flag, struct per_term_screen *term_screen)
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{
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grub_term_gotoxy (term_screen->term, GRUB_TERM_LEFT_BORDER_X
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+ grub_term_border_width (term_screen->term),
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GRUB_TERM_FIRST_ENTRY_Y);
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if (flag)
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grub_putcode (GRUB_UNICODE_UPARROW, term_screen->term);
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else
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grub_putcode (' ', term_screen->term);
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}
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/* Print a down arrow. */
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static void
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print_down (int flag, struct per_term_screen *term_screen)
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{
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grub_term_gotoxy (term_screen->term, GRUB_TERM_LEFT_BORDER_X
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+ grub_term_border_width (term_screen->term),
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GRUB_TERM_TOP_BORDER_Y
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+ term_screen->num_entries);
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if (flag)
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grub_putcode (GRUB_UNICODE_DOWNARROW, term_screen->term);
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else
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grub_putcode (' ', term_screen->term);
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}
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/* Draw the lines of the screen SCREEN. */
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static void
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update_screen (struct screen *screen, struct per_term_screen *term_screen,
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int region_start, int region_column,
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int up, int down, enum update_mode mode)
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{
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int up_flag = 0;
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int down_flag = 0;
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int y;
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int i;
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struct line *linep;
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/* Check if scrolling is necessary. */
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if (term_screen->y < 0 || term_screen->y >= term_screen->num_entries)
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{
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int delta;
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if (term_screen->y < 0)
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delta = -term_screen->y;
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else
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delta = term_screen->num_entries - 1 - term_screen->y;
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term_screen->y += delta;
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term_screen->y_line_start += delta;
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region_start = 0;
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region_column = 0;
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up = 1;
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down = 1;
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mode = ALL_LINES;
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}
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if (mode != NO_LINE)
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{
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/* Draw lines. This code is tricky, because this must calculate logical
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positions. */
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y = term_screen->y_line_start;
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i = screen->line;
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linep = screen->lines + i;
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while (y > 0)
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{
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i--;
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linep--;
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y -= get_logical_num_lines (linep, term_screen);
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}
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if (y < 0 || i > 0)
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up_flag = 1;
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do
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{
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int column;
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int off = 0;
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int full_len;
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if (linep >= screen->lines + screen->num_lines)
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break;
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full_len = grub_getstringwidth (linep->buf, linep->buf + linep->len,
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term_screen->term);
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for (column = 0;
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column <= full_len
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&& y < term_screen->num_entries;
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column += grub_term_entry_width (term_screen->term), y++)
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{
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if (y < 0)
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{
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off += print_line (linep, off, y, term_screen, 1);
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continue;
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}
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if (i == region_start)
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{
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if (region_column >= column
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&& region_column
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< (column
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+ grub_term_entry_width (term_screen->term)))
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off += print_line (linep, off, y, term_screen, 0);
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else if (region_column < column)
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off += print_line (linep, off, y, term_screen, 0);
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else
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off += print_line (linep, off, y, term_screen, 1);
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}
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else if (i > region_start && mode == ALL_LINES)
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off += print_line (linep, off, y, term_screen, 0);
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}
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if (y == term_screen->num_entries)
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{
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if (off <= linep->len || i + 1 < screen->num_lines)
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down_flag = 1;
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}
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linep++;
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i++;
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if (mode == ALL_LINES && i == screen->num_lines)
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for (; y < term_screen->num_entries; y++)
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print_empty_line (y, term_screen);
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}
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while (y < term_screen->num_entries);
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/* Draw up and down arrows. */
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if (up)
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print_up (up_flag, term_screen);
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if (down)
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print_down (down_flag, term_screen);
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}
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/* Place the cursor. */
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grub_term_gotoxy (term_screen->term,
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GRUB_TERM_LEFT_BORDER_X + GRUB_TERM_MARGIN + 1
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+ term_screen->x,
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GRUB_TERM_FIRST_ENTRY_Y + term_screen->y);
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grub_term_refresh (term_screen->term);
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}
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static void
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update_screen_all (struct screen *screen,
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int region_start, int region_column,
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int up, int down, enum update_mode mode)
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{
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unsigned i;
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for (i = 0; i < screen->nterms; i++)
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update_screen (screen, &screen->terms[i], region_start, region_column,
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up, down, mode);
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}
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static int
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insert_string (struct screen *screen, const char *s, int update)
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{
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int region_start = screen->num_lines;
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int region_column = 0;
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int down[screen->nterms];
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enum update_mode mode[screen->nterms];
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unsigned i;
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for (i = 0; i < screen->nterms; i++)
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{
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down[i] = 0;
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mode[i] = NO_LINE;
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}
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while (*s)
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{
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if (*s == '\n')
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{
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/* LF is special because it creates a new line. */
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struct line *current_linep;
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struct line *next_linep;
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int size;
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/* Make a new line. */
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screen->num_lines++;
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screen->lines = grub_realloc (screen->lines,
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screen->num_lines
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* sizeof (screen->lines[0]));
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if (! screen->lines)
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return 0;
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/* Scroll down. */
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grub_memmove (screen->lines + screen->line + 2,
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screen->lines + screen->line + 1,
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((screen->num_lines - screen->line - 2)
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* sizeof (struct line)));
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if (! init_line (screen->lines + screen->line + 1))
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return 0;
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/* Fold the line. */
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current_linep = screen->lines + screen->line;
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next_linep = current_linep + 1;
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size = current_linep->len - screen->column;
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if (! ensure_space (next_linep, size))
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return 0;
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grub_memmove (next_linep->buf,
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current_linep->buf + screen->column,
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size * sizeof (next_linep->buf[0]));
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current_linep->len = screen->column;
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next_linep->len = size;
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/* Update a dirty region. */
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if (region_start > screen->line)
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{
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region_start = screen->line;
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region_column = screen->column;
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}
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for (i = 0; i < screen->nterms; i++)
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{
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mode[i] = ALL_LINES;
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down[i] = 1; /* XXX not optimal. */
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}
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/* Move the cursor. */
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screen->column = screen->real_column = 0;
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screen->line++;
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for (i = 0; i < screen->nterms; i++)
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{
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screen->terms[i].x = 0;
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screen->terms[i].y++;
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screen->terms[i].y_line_start = screen->terms[i].y;
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}
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s++;
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}
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else
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{
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/* All but LF. */
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const char *p;
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struct line *current_linep;
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int size;
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int orig_num[screen->nterms], new_num[screen->nterms];
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grub_uint32_t *unicode_msg;
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/* Find a string delimited by LF. */
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p = grub_strchr (s, '\n');
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if (! p)
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p = s + grub_strlen (s);
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/* Insert the string. */
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current_linep = screen->lines + screen->line;
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unicode_msg = grub_malloc ((p - s) * sizeof (grub_uint32_t));
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if (!unicode_msg)
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return 0;
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size = grub_utf8_to_ucs4 (unicode_msg, (p - s),
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(grub_uint8_t *) s, (p - s), 0);
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if (! ensure_space (current_linep, size))
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return 0;
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grub_memmove (current_linep->buf + screen->column + size,
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current_linep->buf + screen->column,
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(current_linep->len - screen->column)
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* sizeof (current_linep->buf[0]));
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grub_memmove (current_linep->buf + screen->column,
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unicode_msg,
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size * sizeof (current_linep->buf[0]));
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grub_free (unicode_msg);
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for (i = 0; i < screen->nterms; i++)
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orig_num[i] = get_logical_num_lines (current_linep,
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&screen->terms[i]);
|
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current_linep->len += size;
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for (i = 0; i < screen->nterms; i++)
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new_num[i] = get_logical_num_lines (current_linep,
|
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&screen->terms[i]);
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|
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/* Update the dirty region. */
|
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if (region_start > screen->line)
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{
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region_start = screen->line;
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region_column = screen->column;
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}
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for (i = 0; i < screen->nterms; i++)
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if (orig_num[i] != new_num[i])
|
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{
|
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mode[i] = ALL_LINES;
|
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down[i] = 1; /* XXX not optimal. */
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}
|
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else if (mode[i] != ALL_LINES)
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mode[i] = SINGLE_LINE;
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|
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/* Move the cursor. */
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advance_to (screen, screen->column + size);
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screen->real_column = screen->column;
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s = p;
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}
|
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}
|
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|
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if (update)
|
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for (i = 0; i < screen->nterms; i++)
|
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update_screen (screen, &screen->terms[i],
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region_start, region_column, 0, down[i], mode[i]);
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|
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return 1;
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}
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|
|
/* Release the resource allocated for SCREEN. */
|
|
static void
|
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destroy_screen (struct screen *screen)
|
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{
|
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int i;
|
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|
|
if (screen->lines)
|
|
for (i = 0; i < screen->num_lines; i++)
|
|
{
|
|
struct line *linep = screen->lines + i;
|
|
|
|
if (linep)
|
|
grub_free (linep->buf);
|
|
}
|
|
|
|
grub_free (screen->killed_text);
|
|
grub_free (screen->lines);
|
|
grub_free (screen->terms);
|
|
grub_free (screen);
|
|
}
|
|
|
|
/* Make a new screen. */
|
|
static struct screen *
|
|
make_screen (grub_menu_entry_t entry)
|
|
{
|
|
struct screen *screen;
|
|
unsigned i;
|
|
|
|
/* Initialize the screen. */
|
|
screen = grub_zalloc (sizeof (*screen));
|
|
if (! screen)
|
|
return 0;
|
|
|
|
screen->submenu = entry->submenu;
|
|
|
|
screen->num_lines = 1;
|
|
screen->lines = grub_malloc (sizeof (struct line));
|
|
if (! screen->lines)
|
|
goto fail;
|
|
|
|
/* Initialize the first line which must be always present. */
|
|
if (! init_line (screen->lines))
|
|
goto fail;
|
|
|
|
insert_string (screen, (char *) entry->sourcecode, 0);
|
|
|
|
/* Reset the cursor position. */
|
|
screen->column = 0;
|
|
screen->real_column = 0;
|
|
screen->line = 0;
|
|
for (i = 0; i < screen->nterms; i++)
|
|
{
|
|
screen->terms[i].x = 0;
|
|
screen->terms[i].y = 0;
|
|
screen->terms[i].y_line_start = screen->terms[i].y;
|
|
}
|
|
|
|
return screen;
|
|
|
|
fail:
|
|
destroy_screen (screen);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
forward_char (struct screen *screen, int update)
|
|
{
|
|
struct line *linep;
|
|
unsigned i;
|
|
|
|
linep = screen->lines + screen->line;
|
|
if (screen->column < linep->len)
|
|
advance (screen);
|
|
else if (screen->num_lines > screen->line + 1)
|
|
{
|
|
screen->column = 0;
|
|
screen->line++;
|
|
for (i = 0; i < screen->nterms; i++)
|
|
{
|
|
screen->terms[i].x = 0;
|
|
screen->terms[i].y++;
|
|
screen->terms[i].y_line_start = screen->terms[i].y;
|
|
}
|
|
}
|
|
|
|
screen->real_column = screen->column;
|
|
|
|
if (update)
|
|
update_screen_all (screen, screen->num_lines, 0, 0, 0, NO_LINE);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
backward_char (struct screen *screen, int update)
|
|
{
|
|
unsigned i;
|
|
|
|
if (screen->column > 0)
|
|
{
|
|
struct grub_unicode_glyph glyph;
|
|
struct line *linep;
|
|
|
|
linep = screen->lines + screen->line;
|
|
|
|
screen->column--;
|
|
screen->column = grub_unicode_get_comb_start (linep->buf,
|
|
linep->buf + screen->column)
|
|
- linep->buf;
|
|
|
|
grub_unicode_aglomerate_comb (screen->lines[screen->line].buf + screen->column,
|
|
screen->lines[screen->line].len - screen->column,
|
|
&glyph);
|
|
|
|
for (i = 0; i < screen->nterms; i++)
|
|
{
|
|
grub_ssize_t width;
|
|
width = grub_term_getcharwidth (screen->terms[i].term, &glyph);
|
|
screen->terms[i].x -= width;
|
|
if (screen->terms[i].x < 0)
|
|
{
|
|
screen->terms[i].x
|
|
= grub_term_entry_width (screen->terms[i].term) - 1;
|
|
screen->terms[i].y--;
|
|
}
|
|
}
|
|
grub_free (glyph.combining);
|
|
}
|
|
else if (screen->line > 0)
|
|
{
|
|
struct line *linep;
|
|
|
|
screen->column = 0;
|
|
screen->line--;
|
|
linep = screen->lines + screen->line;
|
|
|
|
for (i = 0; i < screen->nterms; i++)
|
|
{
|
|
screen->terms[i].y_line_start -= get_logical_num_lines (linep, &screen->terms[i]);
|
|
screen->terms[i].y = screen->terms[i].y_line_start;
|
|
screen->terms[i].x = 0;
|
|
}
|
|
advance_to (screen, screen->lines[screen->line].len);
|
|
}
|
|
|
|
screen->real_column = screen->column;
|
|
|
|
if (update)
|
|
update_screen_all (screen, screen->num_lines, 0, 0, 0, NO_LINE);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
previous_line (struct screen *screen, int update)
|
|
{
|
|
unsigned i;
|
|
|
|
if (screen->line > 0)
|
|
{
|
|
struct line *linep;
|
|
int col;
|
|
|
|
screen->line--;
|
|
|
|
linep = screen->lines + screen->line;
|
|
if (linep->len < screen->real_column)
|
|
col = linep->len;
|
|
else
|
|
col = screen->real_column;
|
|
|
|
screen->column = 0;
|
|
|
|
for (i = 0; i < screen->nterms; i++)
|
|
{
|
|
screen->terms[i].y_line_start -= get_logical_num_lines (linep, &screen->terms[i]);
|
|
screen->terms[i].y = screen->terms[i].y_line_start;
|
|
screen->terms[i].x = 0;
|
|
}
|
|
advance_to (screen, col);
|
|
}
|
|
else
|
|
{
|
|
for (i = 0; i < screen->nterms; i++)
|
|
{
|
|
screen->terms[i].y = screen->terms[i].y_line_start;
|
|
screen->terms[i].x = 0;
|
|
}
|
|
screen->column = 0;
|
|
}
|
|
|
|
if (update)
|
|
update_screen_all (screen, screen->num_lines, 0, 0, 0, NO_LINE);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
next_line (struct screen *screen, int update)
|
|
{
|
|
unsigned i;
|
|
|
|
if (screen->line < screen->num_lines - 1)
|
|
{
|
|
struct line *linep;
|
|
int c;
|
|
|
|
/* How many physical lines from the current position
|
|
to the last physical line? */
|
|
linep = screen->lines + screen->line;
|
|
|
|
screen->line++;
|
|
if ((linep + 1)->len < screen->real_column)
|
|
c = (linep + 1)->len;
|
|
else
|
|
c = screen->real_column;
|
|
screen->column = 0;
|
|
|
|
for (i = 0; i < screen->nterms; i++)
|
|
{
|
|
screen->terms[i].y_line_start += get_logical_num_lines (linep, &screen->terms[i]);
|
|
screen->terms[i].x = 0;
|
|
screen->terms[i].y = screen->terms[i].y_line_start;
|
|
}
|
|
advance_to (screen, c);
|
|
}
|
|
else
|
|
advance_to (screen, screen->lines[screen->line].len);
|
|
|
|
if (update)
|
|
update_screen_all (screen, screen->num_lines, 0, 0, 0, NO_LINE);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
beginning_of_line (struct screen *screen, int update)
|
|
{
|
|
unsigned i;
|
|
|
|
screen->column = screen->real_column = 0;
|
|
for (i = 0; i < screen->nterms; i++)
|
|
{
|
|
screen->terms[i].x = 0;
|
|
screen->terms[i].y = screen->terms[i].y_line_start;
|
|
}
|
|
|
|
if (update)
|
|
update_screen_all (screen, screen->num_lines, 0, 0, 0, NO_LINE);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
end_of_line (struct screen *screen, int update)
|
|
{
|
|
advance_to (screen, screen->lines[screen->line].len);
|
|
|
|
if (update)
|
|
update_screen_all (screen, screen->num_lines, 0, 0, 0, NO_LINE);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
delete_char (struct screen *screen, int update)
|
|
{
|
|
struct line *linep;
|
|
int start = screen->num_lines;
|
|
int column = 0;
|
|
|
|
linep = screen->lines + screen->line;
|
|
if (linep->len > screen->column)
|
|
{
|
|
int orig_num[screen->nterms], new_num;
|
|
unsigned i;
|
|
|
|
for (i = 0; i < screen->nterms; i++)
|
|
orig_num[i] = get_logical_num_lines (linep, &screen->terms[i]);
|
|
|
|
grub_memmove (linep->buf + screen->column,
|
|
linep->buf + screen->column + 1,
|
|
(linep->len - screen->column - 1)
|
|
* sizeof (linep->buf[0]));
|
|
linep->len--;
|
|
|
|
start = screen->line;
|
|
column = screen->column;
|
|
|
|
screen->real_column = screen->column;
|
|
|
|
if (update)
|
|
{
|
|
for (i = 0; i < screen->nterms; i++)
|
|
{
|
|
new_num = get_logical_num_lines (linep, &screen->terms[i]);
|
|
if (orig_num[i] != new_num)
|
|
update_screen (screen, &screen->terms[i],
|
|
start, column, 0, 0, ALL_LINES);
|
|
else
|
|
update_screen (screen, &screen->terms[i],
|
|
start, column, 0, 0, SINGLE_LINE);
|
|
}
|
|
}
|
|
}
|
|
else if (screen->num_lines > screen->line + 1)
|
|
{
|
|
struct line *next_linep;
|
|
|
|
next_linep = linep + 1;
|
|
if (! ensure_space (linep, next_linep->len))
|
|
return 0;
|
|
|
|
grub_memmove (linep->buf + linep->len, next_linep->buf,
|
|
next_linep->len * sizeof (linep->buf[0]));
|
|
linep->len += next_linep->len;
|
|
|
|
grub_free (next_linep->buf);
|
|
grub_memmove (next_linep,
|
|
next_linep + 1,
|
|
(screen->num_lines - screen->line - 2)
|
|
* sizeof (struct line));
|
|
screen->num_lines--;
|
|
|
|
start = screen->line;
|
|
column = screen->column;
|
|
|
|
screen->real_column = screen->column;
|
|
if (update)
|
|
update_screen_all (screen, start, column, 0, 1, ALL_LINES);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
backward_delete_char (struct screen *screen, int update)
|
|
{
|
|
int saved_column;
|
|
int saved_line;
|
|
|
|
saved_column = screen->column;
|
|
saved_line = screen->line;
|
|
|
|
if (! backward_char (screen, 0))
|
|
return 0;
|
|
|
|
if (saved_column != screen->column || saved_line != screen->line)
|
|
if (! delete_char (screen, update))
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
kill_line (struct screen *screen, int continuous, int update)
|
|
{
|
|
struct line *linep;
|
|
char *p;
|
|
int size;
|
|
int offset;
|
|
|
|
p = screen->killed_text;
|
|
if (! continuous && p)
|
|
p[0] = '\0';
|
|
|
|
linep = screen->lines + screen->line;
|
|
size = linep->len - screen->column;
|
|
|
|
if (p)
|
|
offset = grub_strlen (p);
|
|
else
|
|
offset = 0;
|
|
|
|
if (size > 0)
|
|
{
|
|
int orig_num[screen->nterms], new_num;
|
|
unsigned i;
|
|
|
|
p = grub_realloc (p, offset + size + 1);
|
|
if (! p)
|
|
return 0;
|
|
|
|
grub_memmove (p + offset, linep->buf + screen->column, size);
|
|
p[offset + size] = '\0';
|
|
|
|
screen->killed_text = p;
|
|
|
|
for (i = 0; i < screen->nterms; i++)
|
|
orig_num[i] = get_logical_num_lines (linep, &screen->terms[i]);
|
|
linep->len = screen->column;
|
|
|
|
if (update)
|
|
{
|
|
for (i = 0; i < screen->nterms; i++)
|
|
{
|
|
new_num = get_logical_num_lines (linep, &screen->terms[i]);
|
|
if (orig_num[i] != new_num)
|
|
update_screen (screen, &screen->terms[i],
|
|
screen->line, screen->column, 0, 1, ALL_LINES);
|
|
else
|
|
update_screen (screen, &screen->terms[i],
|
|
screen->line, screen->column, 0, 0, SINGLE_LINE);
|
|
}
|
|
}
|
|
}
|
|
else if (screen->line + 1 < screen->num_lines)
|
|
{
|
|
p = grub_realloc (p, offset + 1 + 1);
|
|
if (! p)
|
|
return 0;
|
|
|
|
p[offset] = '\n';
|
|
p[offset + 1] = '\0';
|
|
|
|
screen->killed_text = p;
|
|
|
|
return delete_char (screen, update);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
yank (struct screen *screen, int update)
|
|
{
|
|
if (screen->killed_text)
|
|
return insert_string (screen, screen->killed_text, update);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
open_line (struct screen *screen, int update)
|
|
{
|
|
int saved_y[screen->nterms];
|
|
unsigned i;
|
|
|
|
for (i = 0; i < screen->nterms; i++)
|
|
saved_y[i] = screen->terms[i].y;
|
|
|
|
if (! insert_string (screen, "\n", 0))
|
|
return 0;
|
|
|
|
if (! backward_char (screen, 0))
|
|
return 0;
|
|
|
|
for (i = 0; i < screen->nterms; i++)
|
|
{
|
|
screen->terms[i].y = saved_y[i];
|
|
screen->terms[i].y_line_start = screen->terms[i].y;
|
|
}
|
|
|
|
if (update)
|
|
update_screen_all (screen, screen->line, screen->column, 0, 1, ALL_LINES);
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* A completion hook to print items. */
|
|
static void
|
|
store_completion (const char *item, grub_completion_type_t type,
|
|
int count __attribute__ ((unused)))
|
|
{
|
|
char *p;
|
|
|
|
completion_type = type;
|
|
|
|
/* Make sure that the completion buffer has enough room. */
|
|
if (completion_buffer.max_len < (completion_buffer.len
|
|
+ (int) grub_strlen (item) + 1 + 1))
|
|
{
|
|
grub_size_t new_len;
|
|
|
|
new_len = completion_buffer.len + grub_strlen (item) + 80;
|
|
p = grub_realloc (completion_buffer.buf, new_len);
|
|
if (! p)
|
|
{
|
|
/* Possibly not fatal. */
|
|
grub_errno = GRUB_ERR_NONE;
|
|
return;
|
|
}
|
|
p[completion_buffer.len] = 0;
|
|
completion_buffer.buf = p;
|
|
completion_buffer.max_len = new_len;
|
|
}
|
|
|
|
p = completion_buffer.buf + completion_buffer.len;
|
|
if (completion_buffer.len != 0)
|
|
{
|
|
*p++ = ' ';
|
|
completion_buffer.len++;
|
|
}
|
|
grub_strcpy (p, item);
|
|
completion_buffer.len += grub_strlen (item);
|
|
}
|
|
|
|
static int
|
|
complete (struct screen *screen, int continuous, int update)
|
|
{
|
|
struct line *linep;
|
|
int restore;
|
|
char *insert;
|
|
static int count = -1;
|
|
unsigned i;
|
|
grub_uint32_t *ucs4;
|
|
grub_size_t buflen;
|
|
grub_ssize_t ucs4len;
|
|
char *u8;
|
|
|
|
if (continuous)
|
|
count++;
|
|
else
|
|
count = 0;
|
|
|
|
completion_buffer.buf = 0;
|
|
completion_buffer.len = 0;
|
|
completion_buffer.max_len = 0;
|
|
|
|
linep = screen->lines + screen->line;
|
|
u8 = grub_ucs4_to_utf8_alloc (linep->buf, screen->column);
|
|
if (!u8)
|
|
return 1;
|
|
|
|
insert = grub_normal_do_completion (u8, &restore, store_completion);
|
|
|
|
if (completion_buffer.buf)
|
|
{
|
|
buflen = grub_strlen (completion_buffer.buf);
|
|
ucs4 = grub_malloc (sizeof (grub_uint32_t) * (buflen + 1));
|
|
|
|
if (!ucs4)
|
|
{
|
|
grub_print_error ();
|
|
grub_errno = GRUB_ERR_NONE;
|
|
return 1;
|
|
}
|
|
|
|
ucs4len = grub_utf8_to_ucs4 (ucs4, buflen,
|
|
(grub_uint8_t *) completion_buffer.buf,
|
|
buflen, 0);
|
|
ucs4[ucs4len] = 0;
|
|
|
|
if (restore)
|
|
for (i = 0; i < screen->nterms; i++)
|
|
{
|
|
int num_sections = ((completion_buffer.len
|
|
+ grub_term_width (screen->terms[i].term)
|
|
- 8 - 1)
|
|
/ (grub_term_width (screen->terms[i].term)
|
|
- 8));
|
|
grub_uint32_t *endp;
|
|
grub_uint16_t pos;
|
|
grub_uint32_t *p = ucs4;
|
|
|
|
pos = grub_term_getxy (screen->terms[i].term);
|
|
grub_term_gotoxy (screen->terms[i].term, 0,
|
|
grub_term_height (screen->terms[i].term) - 3);
|
|
|
|
screen->completion_shown = 1;
|
|
|
|
grub_term_gotoxy (screen->terms[i].term, 0,
|
|
grub_term_height (screen->terms[i].term) - 3);
|
|
grub_puts_terminal (" ", screen->terms[i].term);
|
|
switch (completion_type)
|
|
{
|
|
case GRUB_COMPLETION_TYPE_COMMAND:
|
|
grub_puts_terminal (_("Possible commands are:"),
|
|
screen->terms[i].term);
|
|
break;
|
|
case GRUB_COMPLETION_TYPE_DEVICE:
|
|
grub_puts_terminal (_("Possible devices are:"),
|
|
screen->terms[i].term);
|
|
break;
|
|
case GRUB_COMPLETION_TYPE_FILE:
|
|
grub_puts_terminal (_("Possible files are:"),
|
|
screen->terms[i].term);
|
|
break;
|
|
case GRUB_COMPLETION_TYPE_PARTITION:
|
|
grub_puts_terminal (_("Possible partitions are:"),
|
|
screen->terms[i].term);
|
|
break;
|
|
case GRUB_COMPLETION_TYPE_ARGUMENT:
|
|
grub_puts_terminal (_("Possible arguments are:"),
|
|
screen->terms[i].term);
|
|
break;
|
|
default:
|
|
grub_puts_terminal (_("Possible things are:"),
|
|
screen->terms[i].term);
|
|
break;
|
|
}
|
|
|
|
grub_puts_terminal ("\n ", screen->terms[i].term);
|
|
|
|
p += (count % num_sections)
|
|
* (grub_term_width (screen->terms[i].term) - 8);
|
|
endp = p + (grub_term_width (screen->terms[i].term) - 8);
|
|
|
|
if (p != ucs4)
|
|
grub_putcode (GRUB_UNICODE_LEFTARROW, screen->terms[i].term);
|
|
else
|
|
grub_putcode (' ', screen->terms[i].term);
|
|
|
|
grub_print_ucs4 (p, ucs4 + ucs4len < endp ? ucs4 + ucs4len : endp,
|
|
0, 0, screen->terms[i].term);
|
|
|
|
if (ucs4 + ucs4len > endp)
|
|
grub_putcode (GRUB_UNICODE_RIGHTARROW, screen->terms[i].term);
|
|
grub_term_gotoxy (screen->terms[i].term, pos >> 8, pos & 0xFF);
|
|
}
|
|
}
|
|
|
|
if (insert)
|
|
{
|
|
insert_string (screen, insert, update);
|
|
count = -1;
|
|
grub_free (insert);
|
|
}
|
|
else if (update)
|
|
grub_refresh ();
|
|
|
|
grub_free (completion_buffer.buf);
|
|
return 1;
|
|
}
|
|
|
|
/* Clear displayed completions. */
|
|
static void
|
|
clear_completions (struct per_term_screen *term_screen)
|
|
{
|
|
grub_uint16_t pos;
|
|
unsigned i, j;
|
|
|
|
pos = grub_term_getxy (term_screen->term);
|
|
grub_term_gotoxy (term_screen->term, 0,
|
|
grub_term_height (term_screen->term) - 3);
|
|
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
for (j = 0; j < grub_term_width (term_screen->term) - 1; j++)
|
|
grub_putcode (' ', term_screen->term);
|
|
grub_putcode ('\n', term_screen->term);
|
|
}
|
|
|
|
grub_term_gotoxy (term_screen->term, pos >> 8, pos & 0xFF);
|
|
grub_term_refresh (term_screen->term);
|
|
}
|
|
|
|
static void
|
|
clear_completions_all (struct screen *screen)
|
|
{
|
|
unsigned i;
|
|
|
|
for (i = 0; i < screen->nterms; i++)
|
|
clear_completions (&screen->terms[i]);
|
|
}
|
|
|
|
/* Execute the command list in the screen SCREEN. */
|
|
static int
|
|
run (struct screen *screen)
|
|
{
|
|
char *script;
|
|
int errs_before;
|
|
grub_menu_t menu = NULL;
|
|
char *dummy[1] = { NULL };
|
|
|
|
grub_cls ();
|
|
grub_printf (" ");
|
|
grub_printf_ (N_("Booting a command list"));
|
|
grub_printf ("\n\n");
|
|
|
|
errs_before = grub_err_printed_errors;
|
|
|
|
if (screen->submenu)
|
|
{
|
|
grub_env_context_open ();
|
|
menu = grub_zalloc (sizeof (*menu));
|
|
if (! menu)
|
|
return 0;
|
|
grub_env_set_menu (menu);
|
|
}
|
|
|
|
/* Execute the script, line for line. */
|
|
{
|
|
int i;
|
|
grub_size_t size = 0, tot_size = 0;
|
|
|
|
for (i = 0; i < screen->num_lines; i++)
|
|
tot_size += grub_get_num_of_utf8_bytes (screen->lines[i].buf,
|
|
screen->lines[i].len) + 1;
|
|
|
|
script = grub_malloc (tot_size + 1);
|
|
if (! script)
|
|
return 0;
|
|
|
|
for (i = 0; i < screen->num_lines; i++)
|
|
{
|
|
size += grub_ucs4_to_utf8 (screen->lines[i].buf, screen->lines[i].len,
|
|
(grub_uint8_t *) script + size,
|
|
tot_size - size);
|
|
script[size++] = '\n';
|
|
}
|
|
script[size] = '\0';
|
|
}
|
|
grub_script_execute_sourcecode (script, 0, dummy);
|
|
grub_free (script);
|
|
|
|
if (errs_before != grub_err_printed_errors)
|
|
grub_wait_after_message ();
|
|
|
|
if (grub_errno == GRUB_ERR_NONE && grub_loader_is_loaded ())
|
|
/* Implicit execution of boot, only if something is loaded. */
|
|
grub_command_execute ("boot", 0, 0);
|
|
|
|
if (screen->submenu)
|
|
{
|
|
if (menu && menu->size)
|
|
{
|
|
grub_show_menu (menu, 1, 0);
|
|
grub_normal_free_menu (menu);
|
|
}
|
|
grub_env_context_close ();
|
|
}
|
|
|
|
if (grub_errno != GRUB_ERR_NONE)
|
|
{
|
|
grub_print_error ();
|
|
grub_errno = GRUB_ERR_NONE;
|
|
grub_wait_after_message ();
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* Edit a menu entry with an Emacs-like interface. */
|
|
void
|
|
grub_menu_entry_run (grub_menu_entry_t entry)
|
|
{
|
|
struct screen *screen;
|
|
int prev_c;
|
|
grub_err_t err = GRUB_ERR_NONE;
|
|
unsigned i;
|
|
grub_term_output_t term;
|
|
|
|
err = grub_auth_check_authentication (NULL);
|
|
|
|
if (err)
|
|
{
|
|
grub_print_error ();
|
|
grub_errno = GRUB_ERR_NONE;
|
|
return;
|
|
}
|
|
|
|
screen = make_screen (entry);
|
|
if (! screen)
|
|
return;
|
|
|
|
screen->terms = NULL;
|
|
|
|
refresh:
|
|
grub_free (screen->terms);
|
|
screen->nterms = 0;
|
|
FOR_ACTIVE_TERM_OUTPUTS(term)
|
|
screen->nterms++;
|
|
screen->terms = grub_malloc (screen->nterms * sizeof (screen->terms[0]));
|
|
if (!screen->terms)
|
|
{
|
|
grub_print_error ();
|
|
grub_errno = GRUB_ERR_NONE;
|
|
return;
|
|
}
|
|
i = 0;
|
|
FOR_ACTIVE_TERM_OUTPUTS(term)
|
|
{
|
|
screen->terms[i].term = term;
|
|
screen->terms[i].x = 0;
|
|
screen->terms[i].y = 0;
|
|
screen->terms[i].y_line_start = screen->terms[i].y;
|
|
i++;
|
|
}
|
|
/* Draw the screen. */
|
|
for (i = 0; i < screen->nterms; i++)
|
|
grub_menu_init_page (0, 1, &screen->terms[i].num_entries,
|
|
screen->terms[i].term);
|
|
update_screen_all (screen, 0, 0, 1, 1, ALL_LINES);
|
|
for (i = 0; i < screen->nterms; i++)
|
|
grub_term_setcursor (screen->terms[i].term, 1);
|
|
prev_c = '\0';
|
|
|
|
while (1)
|
|
{
|
|
int c = grub_getkey ();
|
|
|
|
if (screen->completion_shown)
|
|
{
|
|
clear_completions_all (screen);
|
|
screen->completion_shown = 0;
|
|
}
|
|
|
|
if (grub_normal_exit_level)
|
|
{
|
|
destroy_screen (screen);
|
|
return;
|
|
}
|
|
|
|
switch (c)
|
|
{
|
|
case GRUB_TERM_KEY_UP:
|
|
case GRUB_TERM_CTRL | 'p':
|
|
if (! previous_line (screen, 1))
|
|
goto fail;
|
|
break;
|
|
|
|
case GRUB_TERM_CTRL | 'n':
|
|
case GRUB_TERM_KEY_DOWN:
|
|
if (! next_line (screen, 1))
|
|
goto fail;
|
|
break;
|
|
|
|
case GRUB_TERM_CTRL | 'f':
|
|
case GRUB_TERM_KEY_RIGHT:
|
|
if (! forward_char (screen, 1))
|
|
goto fail;
|
|
break;
|
|
|
|
case GRUB_TERM_CTRL | 'b':
|
|
case GRUB_TERM_KEY_LEFT:
|
|
if (! backward_char (screen, 1))
|
|
goto fail;
|
|
break;
|
|
|
|
case GRUB_TERM_CTRL | 'a':
|
|
case GRUB_TERM_KEY_HOME:
|
|
if (! beginning_of_line (screen, 1))
|
|
goto fail;
|
|
break;
|
|
|
|
case GRUB_TERM_CTRL | 'e':
|
|
case GRUB_TERM_KEY_END:
|
|
if (! end_of_line (screen, 1))
|
|
goto fail;
|
|
break;
|
|
|
|
case GRUB_TERM_CTRL | 'i':
|
|
case '\t':
|
|
if (! complete (screen, prev_c == c, 1))
|
|
goto fail;
|
|
break;
|
|
|
|
case GRUB_TERM_CTRL | 'd':
|
|
case GRUB_TERM_KEY_DC:
|
|
if (! delete_char (screen, 1))
|
|
goto fail;
|
|
break;
|
|
|
|
case GRUB_TERM_CTRL | 'h':
|
|
case '\b':
|
|
if (! backward_delete_char (screen, 1))
|
|
goto fail;
|
|
break;
|
|
|
|
case GRUB_TERM_CTRL | 'k':
|
|
if (! kill_line (screen, prev_c == c, 1))
|
|
goto fail;
|
|
break;
|
|
|
|
case GRUB_TERM_CTRL | 'u':
|
|
/* FIXME: What behavior is good for this key? */
|
|
break;
|
|
|
|
case GRUB_TERM_CTRL | 'y':
|
|
if (! yank (screen, 1))
|
|
goto fail;
|
|
break;
|
|
|
|
case GRUB_TERM_CTRL | 'l':
|
|
/* FIXME: centering. */
|
|
goto refresh;
|
|
|
|
case GRUB_TERM_CTRL | 'o':
|
|
if (! open_line (screen, 1))
|
|
goto fail;
|
|
break;
|
|
|
|
case '\n':
|
|
case '\r':
|
|
if (! insert_string (screen, "\n", 1))
|
|
goto fail;
|
|
break;
|
|
|
|
case '\e':
|
|
destroy_screen (screen);
|
|
return;
|
|
|
|
case GRUB_TERM_CTRL | 'c':
|
|
case GRUB_TERM_KEY_F2:
|
|
grub_cmdline_run (1);
|
|
goto refresh;
|
|
|
|
case GRUB_TERM_CTRL | 'x':
|
|
case GRUB_TERM_KEY_F10:
|
|
run (screen);
|
|
goto refresh;
|
|
|
|
case GRUB_TERM_CTRL | 'r':
|
|
case GRUB_TERM_CTRL | 's':
|
|
case GRUB_TERM_CTRL | 't':
|
|
/* FIXME */
|
|
break;
|
|
|
|
default:
|
|
if (grub_isprint (c))
|
|
{
|
|
char buf[2];
|
|
|
|
buf[0] = c;
|
|
buf[1] = '\0';
|
|
if (! insert_string (screen, buf, 1))
|
|
goto fail;
|
|
}
|
|
break;
|
|
}
|
|
|
|
prev_c = c;
|
|
}
|
|
|
|
fail:
|
|
destroy_screen (screen);
|
|
|
|
grub_cls ();
|
|
grub_print_error ();
|
|
grub_errno = GRUB_ERR_NONE;
|
|
grub_xputs ("\n");
|
|
grub_printf_ (N_("Press any key to continue..."));
|
|
(void) grub_getkey ();
|
|
}
|