Add new parameter :after-hook to define-minor-mode. Use this in the

definition of font-lock-mode.

6 files changed, 46 insertions, 15 deletions

diff --git a/doc/lispref/ChangeLog b/doc/lispref/ChangeLog
index 4c69a309ca8..151a6388c7f 100644
--- a/doc/lispref/ChangeLog
+++ b/doc/lispref/ChangeLog
@@ -1,3 +1,8 @@
+2012-02-23  Alan Mackenzie  <acm@muc.de>
+
+	* modes.texi (Defining Minor Modes): Document the new keyword
+	:after-hook.
+
 2012-02-21  Chong Yidong  <cyd@gnu.org>
 
 	* files.texi (Files): Mention magic file names as arguments.
diff --git a/doc/lispref/modes.texi b/doc/lispref/modes.texi
index 09a96f23c5e..a4ee6f8327f 100644
--- a/doc/lispref/modes.texi
+++ b/doc/lispref/modes.texi
@@ -1594,15 +1594,20 @@ anything that can be used with the @code{setf} function
 @var{place} can also be a cons @code{(@var{get} . @var{set})},
 where @var{get} is an expression that returns the current state,
 and @var{set} is a function of one argument (a state) that sets it.
+
+@item :after-hook @var{after-hook}
+This defines a single lisp form which is evaluated after the mode hooks
+have run.  It should not be quoted.
 @end table
 
 Any other keyword arguments are passed directly to the
 @code{defcustom} generated for the variable @var{mode}.
 
-The command named @var{mode} first performs the standard actions such
-as setting the variable named @var{mode} and then executes the
-@var{body} forms, if any.  It finishes by running the mode hook
-variable @code{@var{mode}-hook}.
+The command named @var{mode} first performs the standard actions such as
+setting the variable named @var{mode} and then executes the @var{body}
+forms, if any.  It then runs the mode hook variable
+@code{@var{mode}-hook} and finishes by evaluating any form in
+@code{:after-hook}.
 @end defmac
 
   The initial value must be @code{nil} except in cases where (1) the
diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index d5951bbbe26..798df418e7d 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,15 @@
+2012-02-23  Alan Mackenzie  <acm@muc.de>
+
+	* emacs-lisp/easy-mmode.el (define-minor-mode): Add extra
+	parameter "after-hook:" to allow the expansion to run code after
+	the execution of the mode hooks.
+
+	* font-lock.el (font-lock-initial-fontify): New function extracted
+	from font-lock-mode-interal.
+
+	* font-core.el (font-lock-mode): call font-lock-initial-fontify in
+	:after-hook.
+
 2012-02-23  Stefan Monnier  <monnier@iro.umontreal.ca>
 
 	* minibuffer.el: Make sure cycling is reset upon edit with icomplete.el.
diff --git a/lisp/emacs-lisp/easy-mmode.el b/lisp/emacs-lisp/easy-mmode.el
index dbacba6cd29..88698a1f069 100644
--- a/lisp/emacs-lisp/easy-mmode.el
+++ b/lisp/emacs-lisp/easy-mmode.el
@@ -135,6 +135,8 @@ BODY contains code to execute each time the mode is enabled or disabled.
 		the new state, and sets it.  If you specify a :variable,
 		this function does not define a MODE variable (nor any of
 		the terms used in :variable).
+:after-hook     A single lisp form which is evaluated after the mode hooks
+                have been run.  It should not be quoted.
 
 For example, you could write
   (define-minor-mode foo-mode \"If enabled, foo on you!\"
@@ -170,6 +172,7 @@ For example, you could write
          (setter nil)            ;The function (if any) to set the mode var.
          (modefun mode)          ;The minor mode function name we're defining.
 	 (require t)
+	 (after-hook nil)
 	 (hook (intern (concat mode-name "-hook")))
 	 (hook-on (intern (concat mode-name "-on-hook")))
 	 (hook-off (intern (concat mode-name "-off-hook")))
@@ -197,6 +200,7 @@ For example, you could write
              (setq mode variable)
            (setq mode (car variable))
            (setq setter (cdr variable))))
+	(:after-hook (setq after-hook (pop body)))
 	(t (push keyw extra-keywords) (push (pop body) extra-keywords))))
 
     (setq keymap-sym (if (and keymap (symbolp keymap)) keymap
@@ -275,7 +279,8 @@ the mode if ARG is omitted or nil, and toggle it if ARG is `toggle'.
                               (not (equal ,last-message
                                           (current-message))))
                    (message ,(format "%s %%sabled" pretty-name)
-                            (if ,mode "en" "dis"))))))
+                            (if ,mode "en" "dis")))))
+	   ,@(when after-hook `(,after-hook)))
 	 (force-mode-line-update)
 	 ;; Return the new setting.
 	 ,mode)
diff --git a/lisp/font-core.el b/lisp/font-core.el
index f6701c0c79f..9b655319bc9 100644
--- a/lisp/font-core.el
+++ b/lisp/font-core.el
@@ -138,6 +138,7 @@ The above is the default behavior of `font-lock-mode'; you may specify
 your own function which is called when `font-lock-mode' is toggled via
 `font-lock-function'. "
   nil nil nil
+  :after-hook (if font-lock-mode (font-lock-initial-fontify))
   ;; Don't turn on Font Lock mode if we don't have a display (we're running a
   ;; batch job) or if the buffer is invisible (the name starts with a space).
   (when (or noninteractive (eq (aref (buffer-name) 0) ?\s))
diff --git a/lisp/font-lock.el b/lisp/font-lock.el
index 9f9445bdea9..a65a2c94c7d 100644
--- a/lisp/font-lock.el
+++ b/lisp/font-lock.el
@@ -629,21 +629,24 @@ Major/minor modes can set this variable if they know which option applies.")
   ;; Shut up the byte compiler.
   (defvar font-lock-face-attributes))	; Obsolete but respected if set.
 
+(defun font-lock-initial-fontify ()
+  ;; The first fontification after turning the mode on.  This must
+  ;;  only be called after the mode hooks have been run.
+  (let ((max-size (font-lock-value-in-major-mode font-lock-maximum-size)))
+    (cond (font-lock-fontified
+	   nil)
+	  ((or (null max-size) (> max-size (buffer-size)))
+	   (font-lock-fontify-buffer))
+	  (font-lock-verbose
+	   (message "Fontifying %s...buffer size greater than font-lock-maximum-size"
+		    (buffer-name))))))
+
 (defun font-lock-mode-internal (arg)
   ;; Turn on Font Lock mode.
   (when arg
     (add-hook 'after-change-functions 'font-lock-after-change-function t t)
     (font-lock-set-defaults)
-    (font-lock-turn-on-thing-lock)
-    ;; Fontify the buffer if we have to.
-    (let ((max-size (font-lock-value-in-major-mode font-lock-maximum-size)))
-      (cond (font-lock-fontified
-	     nil)
-	    ((or (null max-size) (> max-size (buffer-size)))
-	     (font-lock-fontify-buffer))
-	    (font-lock-verbose
-	     (message "Fontifying %s...buffer size greater than font-lock-maximum-size"
-		      (buffer-name))))))
+    (font-lock-turn-on-thing-lock))
   ;; Turn off Font Lock mode.
   (unless font-lock-mode
     (remove-hook 'after-change-functions 'font-lock-after-change-function t)