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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 "screen.h"
+#include "extern.h"
+#include "list_generic.h"
+
+#ifdef MULTI
+
+extern struct layer *flayer;
+extern struct display *display, *displays;
+extern struct mchar mchar_blank, mchar_so;
+
+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(struct ListData *ldata)
+{
+ leftline("term-type size user interface window Perms", 0, 0);
+ leftline("---------- ------- ---------- ----------------- ---------- -----", 1, 0);
+ return 2;
+}
+
+static int
+gl_Display_footer(struct ListData *ldata)
+{
+ centerline("[Press Space to refresh; Return to end.]", flayer->l_height - 1);
+ return 1;
+}
+
+static int
+gl_Display_row(struct ListData *ldata, struct ListRow *lrow)
+{
+ struct display *d = lrow->data;
+ char tbuf[80];
+ static char *blockstates[5] = {"nb", "NB", "Z<", "Z>", "BL"};
+ struct win *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
+ */
+#ifdef MULTIUSER
+ (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')
+#else
+ 'r', 'w', 'x'
+#endif
+ );
+ }
+ leftline(tbuf, lrow->y, lrow == ldata->selected ? &mchar_so : d == display ? &m_current : 0);
+
+ return 1;
+}
+
+static void
+gl_Display_rebuild(struct ListData *ldata)
+{
+ /* recreate the rows */
+ struct display *d;
+ struct ListRow *row = NULL;
+ 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);
+}
+
+static int
+gl_Display_input(struct ListData *ldata, char **inp, int *len)
+{
+ struct display *cd = display;
+ unsigned char ch;
+
+ if (!ldata->selected)
+ return 0;
+
+ ch = (unsigned char) **inp;
+ ++*inp;
+ --*len;
+
+ switch (ch)
+ {
+ case ' ': /* Space to refresh */
+ glist_remove_rows(ldata);
+ gl_Display_rebuild(ldata);
+ break;
+
+ case '\r':
+ case '\n':
+ glist_abort();
+ *len = 0;
+ break;
+
+#ifdef REMOTE_DETACH
+ case 'd': /* Detach */
+ case 'D': /* Power detach */
+ display = ldata->selected->data;
+ if (display == cd) /* We do not allow detaching the current display */
+ break;
+ Detach(
+#ifdef POW_DETACH
+ ch == 'D' ? D_REMOTE_POWER : D_REMOTE
+#else
+ D_REMOTE
+#endif
+ );
+ display = cd;
+ glist_remove_rows(ldata);
+ gl_Display_rebuild(ldata);
+ break;
+#endif
+
+ default:
+ /* We didn't actually process the input. */
+ --*inp;
+ ++*len;
+ return 0;
+ }
+ return 1;
+}
+
+static int
+gl_Display_freerow(struct ListData *ldata, struct ListRow *row)
+{
+ /* There was no allocation when row->data was set. So nothing to do here. */
+ return 0;
+}
+
+static int
+gl_Display_free(struct ListData *ldata)
+{
+ /* There was no allocation in ldata->data. So nothing to do here. */
+ return 0;
+}
+
+static struct GenericList gl_Display =
+{
+ gl_Display_header,
+ gl_Display_footer,
+ gl_Display_row,
+ gl_Display_input,
+ gl_Display_freerow,
+ gl_Display_free,
+ NULL /* We do not allow searching in the display list, at the moment */
+};
+
+void
+display_displays()
+{
+ struct 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);
+}
+
+#endif /* MULTI */
+
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