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/* Copyright (c) 2010
* Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de)
* Sadrul Habib Chowdhury (sadrul@users.sourceforge.net)
* Copyright (c) 2008, 2009
* Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de)
* Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de)
* Micah Cowan (micah@cowan.name)
* Sadrul Habib Chowdhury (sadrul@users.sourceforge.net)
* Copyright (c) 1993-2002, 2003, 2005, 2006, 2007
* Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de)
* Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de)
* Copyright (c) 1987 Oliver Laumann
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program (see the file COPYING); if not, see
* https://www.gnu.org/licenses/, or contact Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*
****************************************************************
*/
/* Deals with the list of displays */
#include "config.h"
#include "list_generic.h"
#include <stdbool.h>
#include <stdint.h>
#include "screen.h"
#include "misc.h"
static char ListID[] = "display";
/*
* layout of the displays page is as follows:
xterm 80x42 jnweiger@/dev/ttyp4 0(m11) &rWx
facit 80x24 nb mlschroe@/dev/ttyhf 11(tcsh) rwx
xterm 80x42 jnhollma@/dev/ttyp5 0(m11) &R.x
| | | | | | | | ¦___ window permissions
| | | | | | | | (R. is locked r-only,
| | | | | | | | W has wlock)
| | | | | | | |___ Window is shared
| | | | | | |___ Name/Title of window
| | | | | |___ Number of window
| | | | |___ Name of the display (the attached device)
| | | |___ Username who is logged in at the display
| | |___ Display is in nonblocking mode. Shows 'NB' if obuf is full.
| |___ Displays geometry as width x height.
|___ the terminal type known by screen for this display.
*/
static int gl_Display_header(ListData *ldata)
{
(void)ldata; /* unused */
leftline("term-type size user interface window Perms", 0, NULL);
leftline("---------- ------- ---------- ----------------- ---------- -----", 1, NULL);
return 2;
}
static int gl_Display_footer(ListData *ldata)
{
(void)ldata; /* unused */
centerline("[Press ctrl-l to refresh; Return to end.]", flayer->l_height - 1);
return 1;
}
static int gl_Display_row(ListData *ldata, ListRow *lrow)
{
Display *d = lrow->data;
char tbuf[80];
static char *blockstates[5] = { "nb", "NB", "Z<", "Z>", "BL" };
Window *w = d->d_fore;
struct mchar m_current = mchar_blank;
m_current.attr = A_BD;
sprintf(tbuf, " %-10.10s%4dx%-4d%10.10s@%-16.16s%s",
d->d_termname, d->d_width, d->d_height, d->d_user->u_name,
d->d_usertty,
(d->d_blocked || d->d_nonblock >= 0) && d->d_blocked <= 4 ? blockstates[d->d_blocked] : " ");
if (w) {
int l = 10 - strlen(w->w_title);
if (l < 0)
l = 0;
sprintf(tbuf + strlen(tbuf), "%3d(%.10s)%*s%c%c%c%c", w->w_number, w->w_title, l, "",
/* w->w_dlist->next */ 0 ? '&' : ' ',
/*
* The rwx triple:
* -,r,R no read, read, read only due to foreign wlock
* -,.,w,W no write, write suppressed by foreign wlock,
* write, own wlock
* -,x no execute, execute
*/
(AclCheckPermWin(d->d_user, ACL_READ, w) ? '-' :
((w->w_wlock == WLOCK_OFF || d->d_user == w->w_wlockuser) ?
'r' : 'R')),
(AclCheckPermWin(d->d_user, ACL_READ, w) ? '-' :
((w->w_wlock == WLOCK_OFF) ? 'w' :
((d->d_user == w->w_wlockuser) ? 'W' : 'v'))),
(AclCheckPermWin(d->d_user, ACL_READ, w) ? '-' : 'x')
);
}
leftline(tbuf, lrow->y, lrow == ldata->selected ? &mchar_so : d == display ? &m_current : NULL);
return 1;
}
static int gl_Display_rebuild(ListData *ldata)
{
/* recreate the rows */
Display *d;
ListRow *row = NULL;
if (flayer->l_width < 10 || flayer->l_height < 5)
return -1;
for (d = displays; d; d = d->d_next) {
row = glist_add_row(ldata, d, row);
if (d == display)
ldata->selected = row;
}
glist_display_all(ldata);
return 0;
}
static int gl_Display_input(ListData *ldata, char **inp, size_t *len)
{
Display *cd = display;
unsigned char ch;
if (!ldata->selected)
return 0;
ch = (unsigned char)**inp;
++*inp;
--*len;
switch (ch) {
case '\f': /* ^L to refresh */
glist_remove_rows(ldata);
gl_Display_rebuild(ldata);
break;
case '\r':
case '\n':
glist_abort();
*len = 0;
break;
case 'd': /* Detach */
case 'D': /* Power detach */
display = ldata->selected->data;
if (display == cd) /* We do not allow detaching the current display */
break;
Detach(ch == 'D' ? D_REMOTE_POWER : D_REMOTE);
display = cd;
glist_remove_rows(ldata);
gl_Display_rebuild(ldata);
break;
default:
/* We didn't actually process the input. */
--*inp;
++*len;
return 0;
}
return 1;
}
static int gl_Display_freerow(ListData *ldata, ListRow *row)
{
(void)ldata; /* unused */
(void)row; /* unused */
/* There was no allocation when row->data was set. So nothing to do here. */
return 0;
}
static int gl_Display_free(ListData *ldata)
{
(void)ldata; /* unused */
/* There was no allocation in ldata->data. So nothing to do here. */
return 0;
}
static const GenericList gl_Display = {
gl_Display_header,
gl_Display_footer,
gl_Display_row,
gl_Display_input,
gl_Display_freerow,
gl_Display_free,
gl_Display_rebuild,
NULL /* We do not allow searching in the display list, at the moment */
};
void display_displays(void)
{
ListData *ldata;
if (flayer->l_width < 10 || flayer->l_height < 5) {
LMsg(0, "Window size too small for displays page");
return;
}
ldata = glist_display(&gl_Display, ListID);
if (!ldata)
return;
gl_Display_rebuild(ldata);
}
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