add emacs tip about custom keybindings

[obsolete/notmuch-wiki] / emacstips.mdwn

diff --git a/emacstips.mdwn b/emacstips.mdwn
index 16d0ee1c85e278f0f72c7002d295a3e5ded7be58..94b09ff9fcbc54fb730917ba4b201a570c202c2c 100644 (file)
--- a/emacstips.mdwn
+++ b/emacstips.mdwn
@@ -70,6 +70,33 @@ As its name implies, notmuch isn't really doing that much (which is part of its
 -----
 
 <h2 id="advanced_tips">Advanced tips and tweaks</h2>
+
+* <span id="custom_keybinding">**Add a keybinding to add/remove/toggle a tag.**</span>
+
+  Here's an example of how to add a key binding to notmuch-show-mode
+  to toggle a "deleted" tag:
+
+               (define-key notmuch-show-mode-map "d"
+                 (lambda ()
+                   "toggle deleted tag for message"
+                   (interactive)
+                   (if (member "deleted" (notmuch-show-get-tags))
+                       (notmuch-show-remove-tag "deleted")
+                     (notmuch-show-add-tag "deleted"))))
+
+  You can do the same for threads in notmuch-search-mode by just
+  replacing "show" with "search" in the called functions.  This
+  definition makes use of a lambda function, but you could just as
+  easily defined a separate function first:
+
+               (defun notmuch-show-toggle-deleted-tag()
+                 "toggle deleted tag for message"
+                 (interactive)
+                 (if (member "deleted" (notmuch-show-get-tags))
+                     (notmuch-show-remove-tag "deleted")
+                   (notmuch-show-add-tag "deleted")))
+               (define-key notmuch-show-mode-map "d" 'notmuch-show-toggle-deleted-tag)
+
 * <span id="fcc">**How to do FCC/BCC...**</span>
 
   Any notmuch reply will automatically include your primary email
@@ -218,33 +245,6 @@ As its name implies, notmuch isn't really doing that much (which is part of its
     (id:87fx3uflkx.fsf@jhu.edu) which contains links to the git
     repositories which contain the files.
 
-* <span id="insert_user_agent">**how to insert a user agent header**</span>
-
-  Sometimes it is good to let the world know which email client you use, so others know which quirks to expect. And it is no shame to let others know that you are way ahead of mail2.0. Notmuch is mail3.0 (at least)!
-
-  [This mail](http://mid.gmane.org/87y6gtnkch.fsf@SSpaeth.de) (id:87y6gtnkch.fsf@SSpaeth.de) posted the below code, that -when inserted in your .emacs file- will add a User-Agent header (which is hidden during composing and in notmuch show, but which can be seen when viewing all headers of a mail). The header will looke like this:
-  `User-Agent: notmuch version 0.1-92-g3893a9a (Emacs 23.1.1/x86_64-pc-linux-gnu)`
-
-
-               ;; set the User-Agent string whenever we invoke message mode
-               (add-hook 'message-mode-hook '(lambda()
-                   ;; check if User-Agent is a required header and set it if not
-                   (if (not (memq 'User-Agent message-required-mail-headers))
-                       (setq message-required-mail-headers 
-                             (append message-required-mail-headers '(User-Agent))))
-                   ;; hide the User-Agent header if not already hidden
-                   (if (not (memq '"^User-Agent:" message-hidden-headers))
-                       (setq message-hidden-headers 
-                             (append message-hidden-headers '("^User-Agent:"))))
-                   ;; create user agent string
-                   (let ((notmuch-user-agent (concat 
-                                              (substring (shell-command-to-string (concat notmuch-command " --version")) 0 -1)
-                                              " (Emacs " emacs-version "/"
-                                               system-configuration ")")))
-                     (setq message-newsreader notmuch-user-agent))
-               ))
-               
-
 * <span id="sign_messages_gpg">**how to sign/encrypt my messages with
   gpg**</span>
 
@@ -261,4 +261,4 @@ As its name implies, notmuch isn't really doing that much (which is part of its
   This inserts the blurb `<#part sign=pgpmime>` into the beginning of
   my mail text body and will be converted into a pgp signature when
   sending (so I can just manually delete that line if I do not want a
-  mail to be signed).
\ No newline at end of file
+  mail to be signed).