(x_set_alpha): Set alpha to -1 if nil given.

[bpt/emacs.git] / src / terminal.c

diff --git a/src/terminal.c b/src/terminal.c
index 8b1836b..6b6edf1 100644 (file)
--- a/src/terminal.c
+++ b/src/terminal.c
@@ -1,12 +1,12 @@
 /* Functions related to terminal devices.
-   Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc.
+   Copyright (C) 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
 
-GNU Emacs is free software; you can redistribute it and/or modify
+GNU Emacs 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.
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
 
 GNU Emacs is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -14,9 +14,7 @@ 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 GNU Emacs; see the file COPYING.  If not, write to
-the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA.  */
+along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include <stdio.h>
@@ -271,6 +269,7 @@ delete_terminal (struct terminal *terminal)
       struct frame *f = XFRAME (frame);
       if (FRAME_LIVE_P (f) && f->terminal == terminal)
         {
+         /* Maybe this should pass Qnoelisp rather than Qt?  */
           Fdelete_frame (frame, Qt);
         }
     }
@@ -285,15 +284,17 @@ delete_terminal (struct terminal *terminal)
   xfree (terminal->terminal_coding);
   terminal->terminal_coding = NULL;
   
-#ifdef MULTI_KBOARD
   if (terminal->kboard && --terminal->kboard->reference_count == 0)
     {
       delete_kboard (terminal->kboard);
       terminal->kboard = NULL;
     }
-#endif
 }
 
+Lisp_Object Qrun_hook_with_args;
+static Lisp_Object Qdelete_terminal_functions;
+static Lisp_Object Vdelete_terminal_functions;
+
 DEFUN ("delete-terminal", Fdelete_terminal, Sdelete_terminal, 0, 2, 0,
        doc: /* Delete TERMINAL by deleting all frames on it and closing the terminal.
 TERMINAL may be a terminal id, a frame, or nil (meaning the selected
@@ -304,19 +305,30 @@ but if the second argument FORCE is non-nil, you may do so. */)
   (terminal, force)
      Lisp_Object terminal, force;
 {
-  struct terminal *t, *p;
-
-  t = get_terminal (terminal, 0);
+  struct terminal *t = get_terminal (terminal, 0);
 
   if (!t)
     return Qnil;
 
-  p = terminal_list;
-  while (p && (p == t || !TERMINAL_ACTIVE_P (p)))
-    p = p->next_terminal;
-  
-  if (NILP (force) && !p)
-    error ("Attempt to delete the sole active display terminal");
+  if (NILP (force))
+    {
+      struct terminal *p = terminal_list;
+      while (p && (p == t || !TERMINAL_ACTIVE_P (p)))
+       p = p->next_terminal;
+      
+      if (!p)
+       error ("Attempt to delete the sole active display terminal");
+    }
+
+  if (NILP (Vrun_hooks))
+    ;
+  else if (EQ (force, Qnoelisp))
+    pending_funcalls
+      = Fcons (list3 (Qrun_hook_with_args,
+                     Qdelete_terminal_functions, terminal),
+              pending_funcalls);
+  else
+    safe_call2 (Qrun_hook_with_args, Qdelete_terminal_functions, terminal);
 
   if (t->delete_terminal_hook)
     (*t->delete_terminal_hook) (t);
@@ -383,6 +395,8 @@ possible return values.  */)
       return Qpc;
     case output_mac:
       return Qmac;
+    case output_ns:
+      return Qns;
     default:
       abort ();
     }
@@ -519,9 +533,7 @@ init_initial_terminal (void)
   initial_terminal = create_terminal ();
   initial_terminal->type = output_initial;
   initial_terminal->name = xstrdup ("initial_terminal");
-#ifdef MULTI_KBOARD
   initial_terminal->kboard = initial_kboard;
-#endif
   initial_terminal->delete_terminal_hook = &delete_initial_terminal;
   /* All other hooks are NULL. */
 
@@ -550,6 +562,17 @@ syms_of_terminal ()
 The function should accept no arguments.  */);
   Vring_bell_function = Qnil;
 
+  DEFVAR_LISP ("delete-terminal-functions", &Vdelete_terminal_functions,
+    doc: /* Special hook run when a terminal is deleted.
+Each function is called with argument, the terminal.
+This may be called just before actually deleting the terminal,
+or some time later.  */);
+  Vdelete_terminal_functions = Qnil;
+  Qdelete_terminal_functions = intern ("delete-terminal-functions");
+  staticpro (&Qdelete_terminal_functions);
+  Qrun_hook_with_args = intern ("run-hook-with-args");
+  staticpro (&Qrun_hook_with_args);
+
   defsubr (&Sdelete_terminal);
   defsubr (&Sframe_terminal);
   defsubr (&Sterminal_live_p);