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Annotation of qemu/roms/ipxe/src/hci/tui/login_ui.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (C) 2009 Michael Brown <[email protected]>.
        !             3:  *
        !             4:  * This program is free software; you can redistribute it and/or
        !             5:  * modify it under the terms of the GNU General Public License as
        !             6:  * published by the Free Software Foundation; either version 2 of the
        !             7:  * License, or any later version.
        !             8:  *
        !             9:  * This program is distributed in the hope that it will be useful, but
        !            10:  * WITHOUT ANY WARRANTY; without even the implied warranty of
        !            11:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
        !            12:  * General Public License for more details.
        !            13:  *
        !            14:  * You should have received a copy of the GNU General Public License
        !            15:  * along with this program; if not, write to the Free Software
        !            16:  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
        !            17:  */
        !            18: 
        !            19: FILE_LICENCE ( GPL2_OR_LATER );
        !            20: 
        !            21: /** @file
        !            22:  *
        !            23:  * Login UI
        !            24:  *
        !            25:  */
        !            26: 
        !            27: #include <string.h>
        !            28: #include <errno.h>
        !            29: #include <curses.h>
        !            30: #include <ipxe/console.h>
        !            31: #include <ipxe/settings.h>
        !            32: #include <ipxe/editbox.h>
        !            33: #include <ipxe/keys.h>
        !            34: #include <ipxe/login_ui.h>
        !            35: 
        !            36: /* Colour pairs */
        !            37: #define CPAIR_NORMAL           1
        !            38: #define CPAIR_LABEL            2
        !            39: #define CPAIR_EDITBOX          3
        !            40: 
        !            41: /* Screen layout */
        !            42: #define USERNAME_LABEL_ROW     8
        !            43: #define USERNAME_ROW           10
        !            44: #define PASSWORD_LABEL_ROW     14
        !            45: #define PASSWORD_ROW           16
        !            46: #define LABEL_COL              36
        !            47: #define EDITBOX_COL            30
        !            48: #define EDITBOX_WIDTH          20
        !            49: 
        !            50: int login_ui ( void ) {
        !            51:        char username[64];
        !            52:        char password[64];
        !            53:        struct edit_box username_box;
        !            54:        struct edit_box password_box;
        !            55:        struct edit_box *current_box = &username_box;
        !            56:        int key;
        !            57:        int rc = -EINPROGRESS;
        !            58: 
        !            59:        /* Fetch current setting values */
        !            60:        fetch_string_setting ( NULL, &username_setting, username,
        !            61:                               sizeof ( username ) );
        !            62:        fetch_string_setting ( NULL, &password_setting, password,
        !            63:                               sizeof ( password ) );
        !            64: 
        !            65:        /* Initialise UI */
        !            66:        initscr();
        !            67:        start_color();
        !            68:        init_pair ( CPAIR_NORMAL, COLOR_WHITE, COLOR_BLACK );
        !            69:        init_pair ( CPAIR_LABEL, COLOR_WHITE, COLOR_BLACK );
        !            70:        init_pair ( CPAIR_EDITBOX, COLOR_WHITE, COLOR_BLUE );
        !            71:        init_editbox ( &username_box, username, sizeof ( username ), NULL,
        !            72:                       USERNAME_ROW, EDITBOX_COL, EDITBOX_WIDTH, 0 );
        !            73:        init_editbox ( &password_box, password, sizeof ( password ), NULL,
        !            74:                       PASSWORD_ROW, EDITBOX_COL, EDITBOX_WIDTH,
        !            75:                       EDITBOX_STARS );
        !            76: 
        !            77:        /* Draw initial UI */
        !            78:        erase();
        !            79:        color_set ( CPAIR_LABEL, NULL );
        !            80:        mvprintw ( USERNAME_LABEL_ROW, LABEL_COL, "Username:" );
        !            81:        mvprintw ( PASSWORD_LABEL_ROW, LABEL_COL, "Password:" );
        !            82:        color_set ( CPAIR_EDITBOX, NULL );
        !            83:        draw_editbox ( &username_box );
        !            84:        draw_editbox ( &password_box );
        !            85: 
        !            86:        /* Main loop */
        !            87:        while ( rc == -EINPROGRESS ) {
        !            88: 
        !            89:                draw_editbox ( current_box );
        !            90: 
        !            91:                key = getkey ( 0 );
        !            92:                switch ( key ) {
        !            93:                case KEY_DOWN:
        !            94:                        current_box = &password_box;
        !            95:                        break;
        !            96:                case KEY_UP:
        !            97:                        current_box = &username_box;
        !            98:                        break;
        !            99:                case TAB:
        !           100:                        current_box = ( ( current_box == &username_box ) ?
        !           101:                                        &password_box : &username_box );
        !           102:                        break;
        !           103:                case KEY_ENTER:
        !           104:                        if ( current_box == &username_box ) {
        !           105:                                current_box = &password_box;
        !           106:                        } else {
        !           107:                                rc = 0;
        !           108:                        }
        !           109:                        break;
        !           110:                case CTRL_C:
        !           111:                case ESC:
        !           112:                        rc = -ECANCELED;
        !           113:                        break;
        !           114:                default:
        !           115:                        edit_editbox ( current_box, key );
        !           116:                        break;
        !           117:                }
        !           118:        }
        !           119: 
        !           120:        /* Terminate UI */
        !           121:        color_set ( CPAIR_NORMAL, NULL );
        !           122:        erase();
        !           123:        endwin();
        !           124: 
        !           125:        if ( rc != 0 )
        !           126:                return rc;
        !           127: 
        !           128:        /* Store settings */
        !           129:        if ( ( rc = store_setting ( NULL, &username_setting, username,
        !           130:                                    strlen ( username ) ) ) != 0 )
        !           131:                return rc;
        !           132:        if ( ( rc = store_setting ( NULL, &password_setting, password,
        !           133:                                    strlen ( password ) ) ) != 0 )
        !           134:                return rc;
        !           135: 
        !           136:        return 0;
        !           137: }

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