f3cbcdc955
<ESC><ESC> is used to step one back in the dialogs. When lxdialog became built-in pressing <ESC> once would cause one step back and pressing <ESC><ESC> would cause two steps back. This patch - based on concept from Roman Zippel <zippel@linux-m68k.org> - makes one <ESC> a noop and pressing <ESC><ESC> will cause one step backward. In addition the final yes/no dialog now has the option to go back to the the kernel configuration. So if you get too far out you can now go back to configuring the kernel without saving and starting all over again. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
105 lines
2.6 KiB
C
105 lines
2.6 KiB
C
/*
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* yesno.c -- implements the yes/no box
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*
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* ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
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* MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "dialog.h"
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/*
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* Display termination buttons
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*/
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static void print_buttons(WINDOW * dialog, int height, int width, int selected)
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{
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int x = width / 2 - 10;
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int y = height - 2;
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print_button(dialog, " Yes ", y, x, selected == 0);
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print_button(dialog, " No ", y, x + 13, selected == 1);
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wmove(dialog, y, x + 1 + 13 * selected);
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wrefresh(dialog);
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}
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/*
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* Display a dialog box with two buttons - Yes and No
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*/
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int dialog_yesno(const char *title, const char *prompt, int height, int width)
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{
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int i, x, y, key = 0, button = 0;
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WINDOW *dialog;
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/* center dialog box on screen */
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x = (COLS - width) / 2;
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y = (LINES - height) / 2;
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draw_shadow(stdscr, y, x, height, width);
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dialog = newwin(height, width, y, x);
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keypad(dialog, TRUE);
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draw_box(dialog, 0, 0, height, width,
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dlg.dialog.atr, dlg.border.atr);
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wattrset(dialog, dlg.border.atr);
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mvwaddch(dialog, height - 3, 0, ACS_LTEE);
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for (i = 0; i < width - 2; i++)
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waddch(dialog, ACS_HLINE);
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wattrset(dialog, dlg.dialog.atr);
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waddch(dialog, ACS_RTEE);
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print_title(dialog, title, width);
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wattrset(dialog, dlg.dialog.atr);
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print_autowrap(dialog, prompt, width - 2, 1, 3);
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print_buttons(dialog, height, width, 0);
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while (key != KEY_ESC) {
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key = wgetch(dialog);
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switch (key) {
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case 'Y':
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case 'y':
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delwin(dialog);
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return 0;
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case 'N':
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case 'n':
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delwin(dialog);
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return 1;
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case TAB:
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case KEY_LEFT:
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case KEY_RIGHT:
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button = ((key == KEY_LEFT ? --button : ++button) < 0) ? 1 : (button > 1 ? 0 : button);
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print_buttons(dialog, height, width, button);
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wrefresh(dialog);
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break;
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case ' ':
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case '\n':
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delwin(dialog);
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return button;
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case KEY_ESC:
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key = on_key_esc(dialog);
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break;
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}
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}
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delwin(dialog);
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return key; /* ESC pressed */
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}
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