From 721146e2168d0828d5dfbe33cd6275f84241b38b Mon Sep 17 00:00:00 2001
From: ueno <ueno>
Date: Sun, 31 Dec 2006 08:21:49 +0000
Subject: [PATCH] * epa.el (epa-mail-modes): New user option.
 (epa--mail-mode-p): New function. (epa-sign): Use it.
 (epa-encrypt): Use it.

---
 ChangeLog |    7 +++++++
 epa.el    |   19 ++++++++++++++++---
 2 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 88b5e2e..d42ea99 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2006-12-31  Daiki Ueno  <ueno@unixuser.org>
 
+	* epa.el (epa-mail-modes): New user option.
+	(epa--mail-mode-p): New function.
+	(epa-sign): Use it.
+	(epa-encrypt): Use it.
+
+2006-12-31  Daiki Ueno  <ueno@unixuser.org>
+
 	* epa.el (epa--derived-mode-p): New alias.
 	(epa-sign): Use it.
 	(epa-encrypt): Use it.
diff --git a/epa.el b/epa.el
index 3e04508..35b3582 100644
--- a/epa.el
+++ b/epa.el
@@ -61,6 +61,11 @@ the separate window."
   :type 'integer
   :group 'epa)
 
+(defcustom epa-mail-modes '(mail-mode message-mode)
+  "List of major-modes to compose mails."
+  :type 'list
+  :group 'epa)
+
 (defgroup epa-faces nil
   "Faces for epa-mode."
   :group 'epa)
@@ -918,6 +923,13 @@ Uses the `derived-mode-parent' property of the symbol to trace backwards."
 		  (setq parent (get parent 'derived-mode-parent))))
       parent)))
 
+(defun epa--mail-mode-p ()
+  (let ((pointer epa-mail-modes))
+    (while (and pointer
+		(epa--derived-mode-p (car pointer)))
+      (setq pointer (cdr pointer)))
+    pointer))
+
 ;;;###autoload
 (defun epa-sign (start end signers mode)
   "Sign the current buffer.
@@ -926,7 +938,7 @@ Don't use this command in Lisp programs!"
   (interactive
    (save-excursion
      (goto-char (point-min))
-     (if (and (epa--derived-mode-p 'mail-mode)
+     (if (and (epa--mail-mode-p)
 	      (search-forward mail-header-separator nil t))
 	 (forward-line))
      (setq epa-last-coding-system-specified
@@ -997,7 +1009,7 @@ Don't use this command in Lisp programs!"
    (save-excursion
      (let (recipients)
        (goto-char (point-min))
-       (when (epa--derived-mode-p 'mail-mode)
+       (when (epa--mail-mode-p)
 	 (save-restriction
 	   (narrow-to-region (point)
 			     (progn
@@ -1011,7 +1023,8 @@ Don't use this command in Lisp programs!"
 				    (mail-fetch-field "bcc" nil nil t))
 			     ","))))
 	 (if recipients
-	     (setq recipients (delete "" (split-string recipients "[ \t\n]+"))))
+	     (setq recipients (delete ""
+				      (split-string recipients "[ \t\n]+"))))
 	 (goto-char (point-min))
 	 (if (search-forward mail-header-separator nil t)
 	     (forward-line)))
-- 
1.7.10.4