Adding upstream version 4.9.0.upstream/4.9.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 245 insertions, 0 deletions

diff --git a/list_display.c b/list_display.c
new file mode 100644
index 0000000..12f181f
--- /dev/null
+++ b/list_display.c
@@ -0,0 +1,245 @@
+/* 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 */
+