[PATCH v5] emacs: Let the user choose where to compose new mails

Jameson Graef Rollins jrollins at finestructure.net
Sat Apr 14 13:42:17 PDT 2012

From: Thomas Jost <schnouki at schnouki.net>

Introduce a new defcustom notmuch-mua-compose-in that allows users to
specify where new mails are composed, either in the current window or
in a new window or frame.

Signed-off-by: Jameson Rollins <jrollins at finestructure.net>
There was a small bug in the previous rebased version of this patch
that this new version fixes.  Sorry about the noise.

I also updated the subject line to indicate that this is in fact the
fifth version of this patch.

 emacs/notmuch-mua.el |   40 ++++++++++++++++++++++++++++++++++++++--
 1 file changed, 38 insertions(+), 2 deletions(-)

diff --git a/emacs/notmuch-mua.el b/emacs/notmuch-mua.el
index 87bd88d..1fb59de 100644
--- a/emacs/notmuch-mua.el
+++ b/emacs/notmuch-mua.el
@@ -36,6 +36,21 @@
   :group 'notmuch-send
   :group 'notmuch-hooks)
+(defcustom notmuch-mua-compose-in 'current-window
+  "Where to create the mail buffer used to compose a new message.
+  Possible values are `current-window' (default), `new-window'
+  and `new-frame'. If set to `current-window', the mail buffer
+  will be displayed in the current window, so the old buffer will
+  be restored when the mail buffer is killed. If set to
+  `new-window' or `new-frame', the mail buffer will be displayed
+  in a new window/frame that will be destroyed when the buffer is
+  killed. You may want to customize `message-kill-buffer-on-exit'
+  accordingly."
+  :group 'notmuch
+  :type '(choice (const :tag "Compose in the current window" current-window)
+		 (const :tag "Compose mail in a new window"  new-window)
+		 (const :tag "Compose mail in a new frame"   new-frame)))
 (defcustom notmuch-mua-user-agent-function 'notmuch-mua-user-agent-full
   "Function used to generate a `User-Agent:' string. If this is
 `nil' then no `User-Agent:' will be generated."
@@ -55,6 +70,23 @@ list."
+(defun notmuch-mua-get-switch-function ()
+  "Get a switch function according to `notmuch-mua-compose-in'."
+  (cond ((eq notmuch-mua-compose-in 'current-window)
+	 'switch-to-buffer)
+	((eq notmuch-mua-compose-in 'new-window)
+	 'switch-to-buffer-other-window)
+	((eq notmuch-mua-compose-in 'new-frame)
+	 'switch-to-buffer-other-frame)
+	(t (error "Invalid value for `notmuch-mua-compose-in'"))))
+(defun notmuch-mua-maybe-set-window-dedicated ()
+  "Set the selected window as dedicated according to
+  (when (or (eq notmuch-mua-compose-in 'new-frame)
+	    (eq notmuch-mua-compose-in 'new-window))
+    (set-window-dedicated-p (selected-window) t)))
 (defun notmuch-mua-user-agent-full ()
   "Generate a `User-Agent:' string suitable for notmuch."
   (concat (notmuch-mua-user-agent-notmuch)
@@ -148,7 +180,8 @@ list."
 		     collect pair)))
 	  (notmuch-mua-mail (plist-get reply-headers :To)
 			    (plist-get reply-headers :Subject)
-			    (notmuch-headers-plist-to-alist reply-headers))))
+			    (notmuch-headers-plist-to-alist reply-headers)
+			    nil (notmuch-mua-get-switch-function))))
       ;; Insert the message body - but put it in front of the signature
       ;; if one is present
@@ -186,6 +219,7 @@ list."
   (set-buffer-modified-p nil))
 (defun notmuch-mua-forward-message ()
+  (funcall (notmuch-mua-get-switch-function) (current-buffer))
   (when notmuch-mua-user-agent-function
@@ -195,6 +229,7 @@ list."
   (set-buffer-modified-p nil)
+  (notmuch-mua-maybe-set-window-dedicated)
@@ -217,6 +252,7 @@ OTHER-ARGS are passed through to `message-mail'."
   (set-buffer-modified-p nil)
+  (notmuch-mua-maybe-set-window-dedicated)
@@ -273,7 +309,7 @@ the From: address first."
   (let ((other-headers
 	 (when (or prompt-for-sender notmuch-always-prompt-for-sender)
 	   (list (cons 'From (notmuch-mua-prompt-for-sender))))))
-    (notmuch-mua-mail nil nil other-headers)))
+    (notmuch-mua-mail nil nil other-headers nil (notmuch-mua-get-switch-function))))
 (defun notmuch-mua-new-forward-message (&optional prompt-for-sender)
   "Invoke the notmuch message forwarding window.

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