root/usr/src/lib/libcurses/screen/endwin.c
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*      Copyright (c) 1988 AT&T */
/*        All Rights Reserved   */

/*
 * University Copyright- Copyright (c) 1982, 1986, 1988
 * The Regents of the University of California
 * All Rights Reserved
 *
 * University Acknowledgment- Portions of this document are derived from
 * software developed by the University of California, Berkeley, and its
 * contributors.
 */

/*LINTLIBRARY*/

/* Clean things up before exiting. */

#include        <stdlib.h>
#include        <sys/types.h>
#include        "curses_inc.h"

#ifdef  _VR2_COMPAT_CODE
char    _endwin = 0;
#endif  /* _VR2_COMPAT_CODE */

int
isendwin(void)
{
        /*
         * The test below must stay at TRUE because the value of 2
         * has special meaning to wrefresh but does not mean that
         * endwin has been called.
         */
        if (SP && (SP->fl_endwin == TRUE))
                return (TRUE);
        else
                return (FALSE);
}

int
endwin(void)
{
        /* make sure we're in program mode */
        if (SP->fl_endwin) {
                /* If endwin is equal to 2 it means we just did a newscreen. */
                if (SP->fl_endwin == TRUE) {
                        (void) reset_prog_mode();
                        if (SP->kp_state)
                                (void) tputs(keypad_xmit, 1, _outch);
                        if (SP->fl_meta)
                                (void) tputs(meta_on, 1, _outch);
                        if (cur_term->_cursorstate != 1)
                                _PUTS(cur_term->cursor_seq
                                    [cur_term->_cursorstate], 0);
                }
                _PUTS(enter_ca_mode, 1);
                (void) tputs(ena_acs, 1, _outch);
                if (exit_attribute_mode)
                        _PUTS(tparm_p0(exit_attribute_mode), 1);
                else
                        /*
                         * If there is no exit_attribute mode, then vidupdate
                         * could only possibly turn off one of the below three
                         * so that's all we ask it turn off.
                         */
                        vidupdate(A_NORMAL,
                            (A_ALTCHARSET | A_STANDOUT | A_UNDERLINE), _outch);

                SP->fl_endwin = FALSE;

#ifdef  _VR2_COMPAT_CODE
                _endwin = (char) FALSE;
#endif  /* _VR2_COMPAT_CODE */
        }

        /* See comment above why this test is explicitly against TRUE. */
        if (SP->fl_endwin == TRUE)
                return (ERR);

        /* Flush out any output not output due to typeahead. */
        if (_INPUTPENDING)
                (void) force_doupdate();

        /* Close things down. */
        (void) ttimeout(-1);
        if (SP->fl_meta)
                (void) tputs(meta_off, 1, _outch);
        (void) mvcur(curscr->_cury, curscr->_curx, curscr->_maxy - 1, 0);

        if (SP->kp_state)
                (void) tputs(keypad_local, 1, _outch);
        if (cur_term->_cursorstate != 1)
                (void) tputs(cursor_normal, 0, _outch);

        /* don't bother turning off colors: it will be done later anyway */
        curscr->_attrs &= ~A_COLOR;             /* SS: colors */

        if ((curscr->_attrs != A_NORMAL) &&
            (magic_cookie_glitch < 0) && (!ceol_standout_glitch))
                _VIDS(A_NORMAL, curscr->_attrs);

        if (SP->phys_irm)
                _OFFINSERT();

        SP->fl_endwin = TRUE;

#ifdef  _VR2_COMPAT_CODE
        _endwin = TRUE;
#endif  /* _VR2_COMPAT_CODE */

        curscr->_clear = TRUE;
        (void) reset_shell_mode();
        (void) tputs(exit_ca_mode, 0, _outch);

        /* restore colors and default color pair. SS: colors    */
        if (orig_colors)
                (void) tputs(orig_colors, 1, _outch);
        if (orig_pair)
                (void) tputs(tparm_p0(orig_pair), 1, _outch);

        /* SS-mouse: free the mouse. */

        if (get_mouse)
                (void) tputs(tparm_p1(get_mouse, 0), 1, _outch);

        (void) fflush(SP->term_file);

        return (OK);
}

int
force_doupdate(void)
{
        char    chars_onQ = cur_term->_chars_on_queue;
        int     ret;

        /*
         * This will cause _chkinput to return FALSE which will force wrefresh
         * to think there is no input waiting and it will finish its refresh.
         */

        cur_term->_chars_on_queue = INP_QSIZE;
        ret = doupdate();
        cur_term->_chars_on_queue = chars_onQ;
        return (ret);
}