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