[notmuch] [PATCH] Make notmuch-show 'X' (and 'x') commands remove inbox (and unread) tags

[Keith Packard]

When closing a thread view, mark the thread as archived by removing
the "inbox" tag, and for the 'x' variant, the "unread" tag as well,
then kill the buffer and update the search window view as well.

This makes 'x' much the same as 'a', but instead of taking you to the
next message, it takes you back to the search window instead.

Signed-off-by: Keith Packard <keithp at keithp.com>
---
 notmuch.el |   86 ++++++++++++++++++++++++++++++++++++++++++++++-------------
 1 files changed, 67 insertions(+), 19 deletions(-)

This adds new functionality without removing any; without this patch,
the 'x' and 'q' commands do the same thing,  killing the buffer
without clearing any tags. With this patch, the 'x' command clears the
inbox and unread tags from the current message and returns to the
search index view, while the existing 'q' command continues to provide
old behaviour.

diff --git a/notmuch.el b/notmuch.el
index cd3780f..544f281 100644
--- a/notmuch.el
+++ b/notmuch.el
@@ -31,8 +31,8 @@
     ; Will be much preferable to switch to direct manipulation for
     ; toggling visibility of these components. Probably using
     ; overlays-at to query and manipulate the current overlay.
-    (define-key map "a" 'notmuch-show-archive-thread)
-    (define-key map "A" 'notmuch-show-mark-read-then-archive-thread)
+    (define-key map "a" 'notmuch-show-mark-read-archive-thread-next-thread)
+    (define-key map "A" 'notmuch-show-archive-thread-next-thread)
     (define-key map "b" 'notmuch-show-toggle-body-read-visible)
     (define-key map "c" 'notmuch-show-toggle-citations-visible)
     (define-key map "h" 'notmuch-show-toggle-headers-visible)
@@ -47,7 +47,8 @@
     (define-key map "s" 'notmuch-show-toggle-signatures-visible)
     (define-key map "v" 'notmuch-show-view-all-mime-parts)
     (define-key map "w" 'notmuch-show-view-raw-message)
-    (define-key map "x" 'kill-this-buffer)
+    (define-key map "x" 'notmuch-show-mark-read-archive-thread-kill-buffer)
+    (define-key map "X" 'notmuch-show-archive-thread-kill-buffer)
     (define-key map "+" 'notmuch-show-add-tag)
     (define-key map "-" 'notmuch-show-remove-tag)
     (define-key map (kbd "DEL") 'notmuch-show-rewind)
@@ -193,7 +194,33 @@ Unlike builtin `next-line' this version accepts no arguments."
 			 (cons (notmuch-show-get-message-id) nil)))
 	  (notmuch-show-set-tags (sort (set-difference tags toremove :test 'string=) 'string<))))))
 
-(defun notmuch-show-archive-thread-maybe-mark-read (markread)
+(defun notmuch-show-next-thread (markread)
+  (let ((parent-buffer notmuch-show-parent-buffer))
+    (kill-this-buffer)
+    (if parent-buffer
+	(progn
+	  (switch-to-buffer parent-buffer)
+	  (forward-line)
+	  (notmuch-search-show-thread)))))
+  
+(defun notmuch-delete-tags (to-remove from)
+  (if to-remove
+      (delete (car to-remove) (notmuch-delete-tags (cdr to-remove) from))
+    from))
+
+(defun notmuch-kill-message-buffer (markread)
+  (let ((parent-buffer notmuch-show-parent-buffer))
+    (kill-this-buffer)
+    (if parent-buffer
+	(progn
+	  (switch-to-buffer parent-buffer)
+	  (let ((tags (notmuch-search-get-tags)))
+	    (setq tags (delete "inbox" tags))
+	    (if markread (setq tags (delete "unread" tags)))
+	    (notmuch-search-set-tags tags))
+	  (forward-line)))))
+
+(defun notmuch-show-archive-thread-maybe-mark-read (markread shownext)
   (save-excursion
     (goto-char (point-min))
     (while (not (eobp))
@@ -204,15 +231,9 @@ Unlike builtin `next-line' this version accepts no arguments."
 	  (forward-char))
       (if (not (re-search-forward notmuch-show-message-begin-regexp nil t))
 	  (goto-char (point-max)))))
-  (let ((parent-buffer notmuch-show-parent-buffer))
-    (kill-this-buffer)
-    (if parent-buffer
-	(progn
-	  (switch-to-buffer parent-buffer)
-	  (forward-line)
-	  (notmuch-search-show-thread)))))
+  (if shownext (notmuch-show-next-thread markread) (notmuch-kill-message-buffer markread)))
 
-(defun notmuch-show-mark-read-then-archive-thread ()
+(defun notmuch-show-mark-read-archive-thread-next-thread ()
   "Remove \"unread\" tag from each message, then archive and show next thread.
 
 Archive each message currently shown by removing the \"unread\"
@@ -225,9 +246,22 @@ being delivered to the same thread. It does not archive the
 entire thread, but only the messages shown in the current
 buffer."
   (interactive)
-  (notmuch-show-archive-thread-maybe-mark-read t))
+  (notmuch-show-archive-thread-maybe-mark-read t t))
+
+(defun notmuch-show-mark-read-archive-thread-kill-buffer ()
+  "Remove \"unread\" tag from each message, then archive and kill the buffer.
+
+Archive each message currrently shown by removing the \"unread\"
+and \"inbox\" tag from each. Then kill this buffer.
 
-(defun notmuch-show-archive-thread ()
+Note: This command is safe from any race condition of new messages
+being delivered to the same thread. It does not archive the
+entire thread, but only the messages shown in the current
+buffer."
+  (interactive)
+  (notmuch-show-archive-thread-maybe-mark-read t nil))
+
+(defun notmuch-show-archive-thread-next-thread ()
   "Archive each message in thread, and show next thread from search.
 
 Archive each message currently shown by removing the \"inbox\"
@@ -239,7 +273,20 @@ being delivered to the same thread. It does not archive the
 entire thread, but only the messages shown in the current
 buffer."
   (interactive)
-  (notmuch-show-archive-thread-maybe-mark-read nil))
+  (notmuch-show-archive-thread-maybe-mark-read nil t))
+
+(defun notmuch-show-archive-thread-kill-buffer ()
+  "Archive each message in thread, and kill the thread buffer.
+
+Archive each message currrently shown by removing the \"inbox\"
+tag from each. Then kill this buffer.
+
+Note: This command is safe from any race condition of new messages
+being delivered to the same thread. It does not archive the
+entire thread, but only the messages shown in the current
+buffer."
+  (interactive)
+  (notmuch-show-archive-thread-maybe-mark-read nil t))
 
 (defun notmuch-show-view-raw-message ()
   "View the raw email of the current message."
@@ -310,7 +357,7 @@ by searching backward)."
       (not (re-search-forward notmuch-show-message-begin-regexp nil t)))))
 
 (defun notmuch-show-message-unread-p ()
-  "Preficate testing whether current message is unread."
+  "Predicate testing whether current message is unread."
   (member "unread" (notmuch-show-get-tags)))
 
 (defun notmuch-show-next-message ()
@@ -447,7 +494,7 @@ which this thread was originally shown."
       (let ((last (notmuch-show-last-message-p)))
 	(notmuch-show-mark-read-then-next-open-message)
 	(if last
-	    (notmuch-show-archive-thread))))))
+	    (notmuch-show-archive-thread-next-thread))))))
 
 (defun notmuch-show-markup-citations-region (beg end depth)
   (goto-char beg)
@@ -631,8 +678,9 @@ messages. Each time you navigate away from a message with
 
 You can add or remove tags from the current message with '+' and
 '-'.  You can also archive all messages in the current
-view, (remove the \"inbox\" tag from each), with
-`notmuch-show-archive-thread' (bound to 'a' by default).
+view, (remove the \"inbox\" tag from each), with either
+`notmuch-show-archive-thread-next-thread' (bound to 'a' by default) or
+`notmuch-show-archive-thread-kill-buffer' (bound to 'x' by default).
 
 \\{notmuch-show-mode-map}"
   (interactive)
-- 
1.6.5.2