[Emacs-diffs] Changes to emacs/lisp/calendar/diary-lib.el,v

[Glenn Morris]

CVSROOT:        /sources/emacs
Module name:    emacs
Changes by:     Glenn Morris <gm>       07/03/20 07:45:06

Index: diary-lib.el
===================================================================
RCS file: /sources/emacs/emacs/lisp/calendar/diary-lib.el,v
retrieving revision 1.119
retrieving revision 1.120
diff -u -b -r1.119 -r1.120
--- diary-lib.el        17 Mar 2007 17:51:56 -0000      1.119
+++ diary-lib.el        20 Mar 2007 07:45:06 -0000      1.120
@@ -290,6 +290,16 @@
 
 (defvar diary-saved-point)             ; internal
 
+(defun diary-live-p ()
+  "Return non-nil if the diary is being displayed.
+This is not the same as just visiting the `diary-file'."
+  (or (get-buffer fancy-diary-buffer)
+      (when diary-file
+        (let ((dbuff (find-buffer-visiting
+                      (substitute-in-file-name diary-file))))
+          (when dbuff
+            (with-current-buffer dbuff
+              diary-selective-display))))))
 
 (defcustom number-of-diary-entries 1
   "Specifies how many days of diary entries are to be displayed initially.
@@ -317,6 +327,15 @@
                         (integer :tag "Thursday")
                         (integer :tag "Friday")
                         (integer :tag "Saturday")))
+  :initialize 'custom-initialize-default
+  ;; Redraw a live diary buffer if necessary. Note this assumes diary
+  ;; was not called with a prefix arg.
+  :set (lambda (symbol value)
+         (let ((oldvalue number-of-diary-entries))
+           (custom-set-default symbol value)
+           (and (not (equal value oldvalue))
+                (diary-live-p)
+                (diary))))
   :group 'diary)