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/*-
* Copyright (c) 1993, 1994
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1992, 1993, 1994, 1995, 1996
* Keith Bostic. All rights reserved.
*
* See the LICENSE file for redistribution information.
*/
#include "config.h"
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/time.h>
#include <bitstring.h>
#include <limits.h>
#include <stdio.h>
#include "../common/common.h"
#include "vi.h"
/*
* v_screen -- ^W
* Switch screens.
*
* PUBLIC: int v_screen(SCR *, VICMD *);
*/
int
v_screen(SCR *sp, VICMD *vp)
{
/*
* You can't leave a colon command-line edit window -- it's not that
* it won't work, but it gets real weird, real fast when you execute
* a colon command out of a window that was forked from a window that's
* now backgrounded... You get the idea.
*/
if (F_ISSET(sp, SC_COMEDIT)) {
msgq(sp, M_ERR,
"308|Enter <CR> to execute a command, :q to exit");
return (1);
}
/*
* Try for the next lower screen, or, go back to the first
* screen on the stack.
*/
if (TAILQ_NEXT(sp, q) != NULL)
sp->nextdisp = TAILQ_NEXT(sp, q);
else if (TAILQ_FIRST(sp->gp->dq) == sp) {
msgq(sp, M_ERR, "187|No other screen to switch to");
return (1);
} else
sp->nextdisp = TAILQ_FIRST(sp->gp->dq);
F_SET(sp->nextdisp, SC_STATUS);
F_SET(sp, SC_SSWITCH | SC_STATUS);
return (0);
}
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