Remove XEmacs compat code from reftex

* lisp/textmodes/reftex-toc.el (reftex-toc, reftex-toc-dframe-p)
(reftex-toc-revert, reftex-toc-toggle-dedicated-frame): Delete
XEmacs compat code.
* lisp/textmodes/reftex.el (reftex-window-height): Make into
obsolete function alias of 'window-height'.  Update all callers.
(reftex-create-customize-menu): Assume recent version of cus-edit.el.

3 files changed, 24 insertions, 41 deletions

diff --git a/lisp/textmodes/reftex-ref.el b/lisp/textmodes/reftex-ref.el
index da0779c8e8d..d0a44eca17c 100644
--- a/lisp/textmodes/reftex-ref.el
+++ b/lisp/textmodes/reftex-ref.el
@@ -784,7 +784,7 @@ When called with 2 \\[universal-argument] prefix args, disable magic word recogn
 (defvar font-lock-mode)
 (defun reftex-show-entry (beg-hlt end-hlt)
   ;; Show entry if point is hidden
-  (let* ((n (/ (reftex-window-height) 2))
+  (let* ((n (/ (window-height) 2))
          (beg (save-excursion
                (re-search-backward "[\n\r]" nil 1 n) (point)))
          (end (save-excursion
diff --git a/lisp/textmodes/reftex-toc.el b/lisp/textmodes/reftex-toc.el
index 3b3f892a688..858d805332a 100644
--- a/lisp/textmodes/reftex-toc.el
+++ b/lisp/textmodes/reftex-toc.el
@@ -1,6 +1,6 @@
 ;;; reftex-toc.el --- RefTeX's table of contents mode  -*- lexical-binding: t; -*-
 
-;; Copyright (C) 1997-2000, 2003-2023 Free Software Foundation, Inc.
+;; Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 ;; Author: Carsten Dominik <dominik@science.uva.nl>
 ;; Maintainer: auctex-devel@gnu.org
@@ -215,9 +215,7 @@ When called with a raw \\[universal-argument] prefix, rescan the document first.
          (here-I-am (if reftex--rebuilding-toc
                         (get 'reftex-toc :reftex-data)
                       (car (reftex-where-am-I))))
-         (unsplittable (if (fboundp 'frame-property)
-                           (frame-property (selected-frame) 'unsplittable)
-                         (frame-parameter nil 'unsplittable)))
+         (unsplittable (frame-parameter nil 'unsplittable))
          offset toc-window)
 
     (if (setq toc-window (get-buffer-window
@@ -385,11 +383,8 @@ SPC=view TAB=goto RET=goto+hide [q]uit [r]escan [l]abels [f]ollow [x]r [?]Help
   ;; Check if FRAME is the dedicated TOC frame.
   ;; If yes, and ERROR is non-nil, throw an error.
   (setq frame (or frame (selected-frame)))
-  (let ((res (equal
-              (if (fboundp 'frame-property)
-                  (frame-property frame 'name)
-                (frame-parameter  frame 'name))
-              "RefTeX TOC Frame")))
+  (let ((res (equal (frame-parameter frame 'name)
+                    "RefTeX TOC Frame")))
     (if (and res error)
         (error (substitute-command-keys
                 "This frame is view-only.  Use \\[reftex-toc] \
@@ -586,10 +581,7 @@ With prefix arg 1, restrict index to the section at point."
 (defun reftex-toc-revert (&rest _)
   "Regenerate the TOC from the internal lists."
   (interactive)
-  (let ((unsplittable
-         (if (fboundp 'frame-property)
-             (frame-property (selected-frame) 'unsplittable)
-           (frame-parameter nil 'unsplittable)))
+  (let ((unsplittable (frame-parameter nil 'unsplittable))
         (reftex--rebuilding-toc t))
     (if unsplittable
         (switch-to-buffer
@@ -1036,12 +1028,9 @@ always show the current section in connection with the option
 `reftex-auto-recenter-toc'."
   (interactive)
   (catch 'exit
-    (let* ((frames (frame-list)) frame
-           (get-frame-prop-func (if (fboundp 'frame-property)
-                                    'frame-property
-                                  'frame-parameter)))
+    (let* ((frames (frame-list)) frame)
       (while (setq frame (pop frames))
-        (if (equal (funcall get-frame-prop-func frame 'name)
+        (if (equal (frame-parameter frame 'name)
                    "RefTeX TOC Frame")
             (progn
               (delete-frame frame)
diff --git a/lisp/textmodes/reftex.el b/lisp/textmodes/reftex.el
index 916e0d89a1d..50bec6ef172 100644
--- a/lisp/textmodes/reftex.el
+++ b/lisp/textmodes/reftex.el
@@ -1,6 +1,6 @@
 ;;; reftex.el --- minor mode for doing \label, \ref, \cite, \index in LaTeX  -*- lexical-binding: t; -*-
 
-;; Copyright (C) 1997-2000, 2003-2023 Free Software Foundation, Inc.
+;; Copyright (C) 1997-2023 Free Software Foundation, Inc.
 
 ;; Author: Carsten Dominik <dominik@science.uva.nl>
 ;; Maintainer: auctex-devel@gnu.org
@@ -1664,11 +1664,6 @@ When DIE is non-nil, throw an error if file not found."
       (pop alist))
     (nreverse out)))
 
-(defun reftex-window-height ()
-  (if (fboundp 'window-displayed-height)
-      (window-displayed-height)
-    (window-height)))
-
 (defun reftex-enlarge-to-fit (buf2 &optional keep-current)
   ;; Enlarge other window displaying buffer to show whole buffer if possible.
   ;; If KEEP-CURRENT in non-nil, current buffer must remain visible.
@@ -1680,7 +1675,7 @@ When DIE is non-nil, throw an error if file not found."
       (unless (and (pos-visible-in-window-p (point-min))
                    (pos-visible-in-window-p (point-max)))
         (enlarge-window (1+ (- (count-lines (point-min) (point-max))
-                               (reftex-window-height))))))
+                               (window-height))))))
     (cond
      ((window-live-p win1) (select-window win1))
      (keep-current
@@ -1705,7 +1700,7 @@ When DIE is non-nil, throw an error if file not found."
           (unless (and (pos-visible-in-window-p (point-min))
                        (pos-visible-in-window-p (point-max)))
             (enlarge-window (1+ (- (count-lines (point-min) (point-max))
-                                   (reftex-window-height)))))
+                                   (window-height)))))
           (setq truncate-lines t))
         (if (and (pos-visible-in-window-p (point-min))
                  (pos-visible-in-window-p (point-max)))
@@ -2274,20 +2269,17 @@ IGNORE-WORDS List of words which should be removed from the string."
 (defun reftex-create-customize-menu ()
   "Create a full customization menu for RefTeX, insert it into the menu."
   (interactive)
-  (if (fboundp 'customize-menu-create)
-      (progn
-        (easy-menu-change
-         '("Ref") "Customize"
-         `(["Browse RefTeX group" reftex-customize t]
-           "--"
-           ,(customize-menu-create 'reftex)
-           ["Set" Custom-set t]
-           ["Save" Custom-save t]
-           ["Reset to Current" Custom-reset-current t]
-           ["Reset to Saved" Custom-reset-saved t]
-           ["Reset to Standard Settings" Custom-reset-standard t]))
-        (message "\"Ref\"-menu now contains full customization menu"))
-    (error "Cannot expand menu (outdated version of cus-edit.el)")))
+  (easy-menu-change
+   '("Ref") "Customize"
+   `(["Browse RefTeX group" reftex-customize t]
+     "--"
+     ,(customize-menu-create 'reftex)
+     ["Set" Custom-set t]
+     ["Save" Custom-save t]
+     ["Reset to Current" Custom-reset-current t]
+     ["Reset to Saved" Custom-reset-saved t]
+     ["Reset to Standard Settings" Custom-reset-standard t]))
+  (message "\"Ref\"-menu now contains full customization menu"))
 
 
 ;;; Misc
@@ -2348,6 +2340,8 @@ Your bug report will be posted to the AUCTeX bug reporting list.
 
 (setq reftex-tables-dirty t)  ; in case this file is evaluated by hand
 
+(define-obsolete-function-alias 'reftex-window-height #'window-height "30.1")
+
 (provide 'reftex)
 
 ;;; reftex.el ends here