emacs: Add `notmuch-jump-to-recent-buffer'.

From a Carl Worth idea: add a function which will select the most
recently used notmuch buffer (search, show or hello). If no recent
buffer is found, run `notmuch'.

It is expected that the user will global bind this command to a key
sequence.

diff --git a/emacs/notmuch.el b/emacs/notmuch.el
index 675a1105dc3b109ce0d1cb1dc8f199a6d3bf7dad..982b7d3ff7a2f713eec3f99e02860d5f9b0a741b 100644 (file)
--- a/emacs/notmuch.el
+++ b/emacs/notmuch.el
@@ -1055,6 +1055,23 @@ current search results AND that are tagged with the given tag."
   (interactive)
   (notmuch-hello))
 
+;;;###autoload
+(defun notmuch-jump-to-recent-buffer ()
+  "Jump to the most recent notmuch buffer (search, show or hello).
+
+If no recent buffer is found, run `notmuch'."
+  (interactive)
+  (let ((last
+        (loop for buffer in (buffer-list)
+              if (with-current-buffer buffer
+                   (memq major-mode '(notmuch-show-mode
+                                      notmuch-search-mode
+                                      notmuch-hello-mode)))
+              return buffer)))
+    (if last
+       (switch-to-buffer last)
+      (notmuch))))
+
 (setq mail-user-agent 'notmuch-user-agent)
 
 (provide 'notmuch)