XEmacs 21.2-b1

[chise/xemacs-chise.git.1] / src / dialog.c

diff --git a/src/dialog.c b/src/dialog.c
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+/* Implements elisp-programmable dialog boxes -- generic.
+   Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+   Copyright (C) 1995 Tinker Systems and INS Engineering Corp.
+
+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. */
+
+/* #### There ain't nothin' here because dialog boxes have not been
+   properly abstracted yet. */
+
+#include <config.h>
+#include "lisp.h"
+#include "frame.h"
+#include "device.h"
+
+DEFUN ("popup-dialog-box", Fpopup_dialog_box, 1, 1, 0, /*
+Pop up a dialog box.
+A dialog box description is a list.
+
+The first element of a dialog box must be a string, which is the title or
+question.
+
+The rest of the elements are descriptions of the dialog box's buttons.
+Each of these is a vector, the syntax of which is essentially the same as
+that of popup menu items.  They may have any of the following forms:
+
+ [ "name" callback <active-p> ]
+ [ "name" callback <active-p> "suffix" ]
+ [ "name" callback :<keyword> <value>  :<keyword> <value> ... ]
+
+The name is the string to display on the button; it is filtered through the
+resource database, so it is possible for resources to override what string
+is actually displayed.
+
+If the `callback' of a button is a symbol, then it must name a command.
+It will be invoked with `call-interactively'.  If it is a list, then it is
+evaluated with `eval'.
+
+One (and only one) of the buttons may be `nil'.  This marker means that all
+following buttons should be flushright instead of flushleft.
+
+Though the keyword/value syntax is supported for dialog boxes just as in
+popup menus, the only keyword which is both meaningful and fully implemented
+for dialog box buttons is `:active'.
+*/
+     (dbox_desc))
+{
+  struct frame *f = selected_frame ();
+  struct device *d = XDEVICE (f->device);
+
+  if (!HAS_DEVMETH_P (d, popup_dialog_box))
+    signal_simple_error ("Device does not support dialogs", f->device);
+
+  if (SYMBOLP (dbox_desc))
+    dbox_desc = Fsymbol_value (dbox_desc);
+  CHECK_CONS (dbox_desc);
+  CHECK_STRING (XCAR (dbox_desc));
+  if (!CONSP (XCDR (dbox_desc)))
+    signal_simple_error ("Dialog descriptor must supply at least one button", dbox_desc);
+
+  DEVMETH (d, popup_dialog_box, (f, dbox_desc));
+
+  return Qnil;
+}
+
+void
+syms_of_dialog (void)
+{
+  DEFSUBR (Fpopup_dialog_box);
+}
+
+void
+vars_of_dialog (void)
+{
+  Fprovide (intern ("dialog"));
+}