[WIP PATCH] emacs: tag-jump allow post tag functions

[Mark Walters]

This adds an option to the tag-jump defcustom to apply a post-tagging
function. One natural option is to go to the next thread/message.
---

This is a first attempt at this. The main change needed is to update
the docstrings.

The structure is a little weird (a list with a plist as an
element). However this has two advantage, it is backward compatible,
and it is possible to hide the more complicated options.

Best wishes

Mark




 emacs/notmuch-tag.el | 33 ++++++++++++++++++++++++++++++---
 1 file changed, 30 insertions(+), 3 deletions(-)

diff --git a/emacs/notmuch-tag.el b/emacs/notmuch-tag.el
index 09d182d..a6506dc 100644
--- a/emacs/notmuch-tag.el
+++ b/emacs/notmuch-tag.el
@@ -42,7 +42,25 @@
 		(key-sequence :tag "Key")
 		(radio :tag "Tag operations" (repeat :tag "Tag list" (string :format "%v" :tag "change"))
 		       (variable :tag "Tag variable"))
-		(string :tag "Name"))))
+		(string :tag "Name")
+		(choice :tag "Advanced Options"
+			(const :tag "None" nil)
+			(list :tag "Choose"
+			      (const :format "" :post-search)
+			      (choice :tag "Post tag in search view: "
+				      (const :tag "None" ignore)
+				      (const :tag "Next" notmuch-search-next-thread)
+				      (function :tag "Custom function" :format "%v"))
+			      (const :format "" :post-tree)
+			      (choice :tag "Post tag in tree view: "
+				      (const :tag "None" ignore)
+				      (const :tag "Next" notmuch-tree-next-message)
+				      (function :tag "Custom function" :format "%v"))
+			      (const :format "" :post-show)
+			      (choice :tag "Post tag in show view: "
+				      (const :tag "None" ignore)
+				      (const :tag "Next" notmuch-show-next-message)
+				      (function :tag "Custom function" :format "%v")))))))
 
 (defcustom notmuch-tagging-keys
   `((,(kbd "a") notmuch-archive-tags "Archive")
@@ -530,9 +548,18 @@ and vice versa."
 	     (name-string (if name
 			      (if reverse (concat "Reverse " name)
 				name)
-			    (mapconcat #'identity tag-change " "))))
+			    (mapconcat #'identity tag-change " ")))
+	     (adv-opts (fourth binding))
+	     (post-tag-function
+	      (case major-mode
+		    (notmuch-search-mode (plist-get adv-opts :post-search))
+		    (notmuch-show-mode (plist-get adv-opts :post-show))
+		    (notmuch-tree-mode (plist-get adv-opts :post-tree)))))
 	(push (list key name-string
-		     `(lambda () (,tag-function ',tag-change)))
+		    `(lambda () (,tag-function ',tag-change)
+		       ,(if post-tag-function
+			    `(,post-tag-function)
+			  '(ignore))))
 	      action-map)))
     (push (list notmuch-tag-jump-reverse-key
 		(if reverse
-- 
2.1.4