Mercurial > hg > xemacs-beta
view src/gui-gtk.c @ 4502:8748a3f7ceb4
Handle varalias chains, custom variables in #'user-variable-p.
src/ChangeLog addition:
2008-08-23 Aidan Kehoe <kehoea@parhasard.net>
* eval.c (Fuser_variable_p): Moved to symbols.c
* symbols.c (Fcustom_variable_p): Moved here from custom.el.
(user_variable_alias_check_fun): Mapper function used in
`user-variable-p'.
(Fuser_variable_p): Moved here from eval.c, to allow it to examine
the variable alias chain. Expanded to check each entry in the
variable alias chain for signs of being a user variable;
documentation updated, noting the differences between GNU's
behaviour and ours (ours is a little more sensible)
(map_varalias_chain): New.
Given a C function, call it at least once for each symbol in a
symbol's varalias chain, signalling an error if there's a cycle,
and returning immediately if the function returns something other
than Qzero.
(Fdefvaralias): Correct the use of the word "alias" in the
docstring and in the argument name. Motivate this in a
comment. Add support for a DOCSTRING argument, something GNU has
too, and document this
* gc.c (vars_of_gc): Start the docstring of
`garbage-collection-messages' with an asterisk, to indicate that
it's a user variable.
lisp/ChangeLog addition:
2008-08-23 Aidan Kehoe <kehoea@parhasard.net>
* custom.el: Move #'custom-variable-p to C, since it's now called
from #'user-variable-p.
author | Aidan Kehoe <kehoea@parhasard.net> |
---|---|
date | Sat, 23 Aug 2008 16:38:51 +0200 |
parents | 166ed8151e62 |
children | 308d34e9f07d |
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/* General GUI code -- GTK-specific. (menubars, scrollbars, toolbars, dialogs) Copyright (C) 1995 Board of Trustees, University of Illinois. Copyright (C) 1995, 1996, 2002 Ben Wing. Copyright (C) 1995 Sun Microsystems, Inc. Copyright (C) 1998 Free Software Foundation, Inc. This file is part of XEmacs. XEmacs 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 2, or (at your option) any later version. XEmacs 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 XEmacs; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Synched up with: Not in FSF. */ #include <config.h> #include "lisp.h" #include "buffer.h" #include "device-impl.h" #include "frame.h" #include "gui.h" #include "opaque.h" #include "console-gtk-impl.h" static GUI_ID gui_id_ctr = 0; GUI_ID new_gui_id (void) { return (++gui_id_ctr); } /* This is like FRAME_MENUBAR_DATA (f), but contains an alist of (id . popup-data) for GCPRO'ing the callbacks of the popup menus and dialog boxes. */ static Lisp_Object Vpopup_callbacks; void gcpro_popup_callbacks (GUI_ID id, Lisp_Object data) { Vpopup_callbacks = Fcons (Fcons (make_int (id), data), Vpopup_callbacks); } void ungcpro_popup_callbacks (GUI_ID id) { Lisp_Object lid = make_int (id); Lisp_Object this_callback = assq_no_quit (lid, Vpopup_callbacks); Vpopup_callbacks = delq_no_quit (this_callback, Vpopup_callbacks); } Lisp_Object get_gcpro_popup_callbacks (GUI_ID id) { Lisp_Object lid = make_int (id); Lisp_Object this_callback = assq_no_quit (lid, Vpopup_callbacks); if (!NILP (this_callback)) { return (XCDR (this_callback)); } return (Qnil); } void syms_of_gui_gtk (void) { #ifdef HAVE_POPUPS DEFSYMBOL (Qmenu_no_selection_hook); #endif } void vars_of_gui_gtk (void) { staticpro (&Vpopup_callbacks); Vpopup_callbacks = Qnil; #ifdef HAVE_POPUPS popup_up_p = 0; #if 0 /* This DEFVAR_LISP is just for the benefit of make-docfile. */ /* #### misnamed */ DEFVAR_LISP ("menu-no-selection-hook", &Vmenu_no_selection_hook /* Function or functions to call when a menu or dialog box is dismissed without a selection having been made. */ ); #endif Fset (Qmenu_no_selection_hook, Qnil); #endif /* HAVE_POPUPS */ }