(highlight-changes-mode): Removed references to hooks that no longer exist.

Because define-minor-mode is used the hook highlight-changes-mode-hook exists
and can do what both the old hooks used to do.  The documentation at the top
of the file was updated to demonstrate this.
(highlight-changes-mode): Remove commented out call to a hook function that
is no longer there.
(hilit-chg-set): Remove running of highlight-changes-enable-hook.

2 files changed, 26 insertions, 27 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 90017503bae..334ffe154a8 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,14 @@
+2008-05-02  Richard Sharman  <rsharman@pobox.com>
+
+        * hilit-chg.el (highlight-changes-mode): Removed references to
+        hooks that no longer exist.  Because define-minor-mode is used the
+        hook highlight-changes-mode-hook exists and can do what both the
+        old hooks used to do.  The documentation at the top of the file
+        was updated to demonstrate this.
+        (highlight-changes-mode): Remove commented out call to a hook
+        function that is no longer there.
+        (hilit-chg-set): Remove running of highlight-changes-enable-hook.
+
 2008-05-02  Eric S. Raymond  <esr@snark.thyrsus.com>
 
         * vc.el (vc-default-dired-state-info): Change name of primitive
diff --git a/lisp/hilit-chg.el b/lisp/hilit-chg.el
index 5d85bc37615..5d2531d6e66 100644
--- a/lisp/hilit-chg.el
+++ b/lisp/hilit-chg.el
@@ -62,24 +62,17 @@
 ;; You can automatically rotate faces when the buffer is saved;
 ;; see function `highlight-changes-rotate-faces' for how to do this.
 
-;; There are two hooks used by `highlight-changes-mode':
-;; `highlight-changes-enable-hook'  - is run when Highlight Changes mode
-;;                                  is enabled for a buffer.
-;; `highlight-changes-disable-hook' - is run when Highlight Changes mode
-;;                                  is disabled for a buffer.
-
-;; Example usage:
-;; (defun my-highlight-changes-enable-hook ()
-;;   (add-hook 'write-file-functions 'highlight-changes-rotate-faces nil t)
-;; )
-;;
-;; (defun my-highlight-changes-disable-hook ()
-;;   (remove-hook 'write-file-functions 'highlight-changes-rotate-faces t)
-;; )
+;; The hook `highlight-changes-mode-hook' is called when
+;; Highlight Changes mode is turned on or off.
+;; When it called, variable `highlight-changes-mode' has been updated
+;; to the new value.
 ;;
-;; (add-hook 'highlight-changes-enable-hook 'my-highlight-changes-enable-hook)
-;; (add-hook 'highlight-changes-disable-hook
-;;              'my-highlight-changes-disable-hook)
+;; Example usage:
+;; (defun my-highlight-changes-mode-hook ()
+;;   (if highlight-changes-mode
+;;       (add-hook 'write-file-functions 'highlight-changes-rotate-faces nil t)
+;;     (remove-hook 'write-file-functions 'highlight-changes-rotate-faces t)
+;;     ))
 
 
 ;;           Automatically enabling Highlight Changes mode
@@ -175,7 +168,9 @@
 ;;   previous active/passive aspect of highlight-changes-mode.
 ;; - Removed highlight-changes-toggle-hook
 ;; - Put back eval-and-compile inadvertently dropped
-
+;; May 2008
+;; - Removed highlight-changes-disable-hook and highlight-changes-enable-hook
+;;   because highlight-changes-mode-hook can do both.
 
 ;;; Code:
 
@@ -353,11 +348,7 @@ Other functions for buffers in this mode include:
 through various faces.
 \\[highlight-compare-with-file] - mark text as changed by comparing this
 buffer with the contents of a file
-\\[highlight-compare-buffers] highlights differences between two buffers.
-
-Hook variables:
-`highlight-changes-enable-hook': called when enabling Highlight Changes mode.
-`highlight-changes-disable-hook': called when disabling Highlight Changes mode."
+\\[highlight-compare-buffers] highlights differences between two buffers."
   nil                   ;; init-value
   hilit-chg-string      ;; lighter
   nil                   ;; keymap
@@ -372,8 +363,6 @@ Hook variables:
             (setq highlight-changes-mode (not highlight-changes-mode)))
         (if highlight-changes-mode
             ;; it is being turned on
-            ;; the hook has been moved into hilit-chg-set
-            ;; (run-hooks 'highlight-changes-enable-hook))
             (hilit-chg-set)
           ;; mode is turned off
           (hilit-chg-clear)))
@@ -634,8 +623,7 @@ This allows you to manually remove highlighting from uninteresting changes."
   (setq highlight-changes-visible-mode highlight-changes-visibility-initial-state)
   (hilit-chg-update)
   (force-mode-line-update)
-  (add-hook 'after-change-functions 'hilit-chg-set-face-on-change nil t)
-  (run-hooks 'highlight-changes-enable-hook))
+  (add-hook 'after-change-functions 'hilit-chg-set-face-on-change nil t))
 
 (defun hilit-chg-clear ()
   "Remove Highlight Changes mode for this buffer.