[PATCH v2 2/4] emacs: When refreshing a show buffer, only mark read when resetting state

[Austin Clements]

If we retain state while refreshing a show buffer, it should not mark
any messages read since it's not a navigation operation (it especially
shouldn't mark the first message matching the query read, which is
what it did previously).  If the user or caller requests that refresh
reset the state of the buffer, then we consider that a navigation
operation, so we do mark the message under point after the refresh
read.

This is implemented by moving responsibility for read-marking out of
notmuch-show-worker and into its caller.
---
 emacs/notmuch-show.el |   14 +++++++++-----
 1 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
index aa9ccee..d036c54 100644
--- a/emacs/notmuch-show.el
+++ b/emacs/notmuch-show.el
@@ -1047,7 +1047,10 @@ function is used."
     (setq notmuch-show-thread-id thread-id
 	  notmuch-show-parent-buffer parent-buffer
 	  notmuch-show-query-context query-context)
-    (notmuch-show-worker)))
+    (notmuch-show-worker)
+
+    ;; Mark the first open message read
+    (notmuch-show-mark-read)))
 
 (defun notmuch-show-worker ()
   (let ((inhibit-read-only t))
@@ -1081,9 +1084,7 @@ function is used."
       (notmuch-show-next-open-message))
 
     ;; Set the header line to the subject of the first open message.
-    (setq header-line-format (notmuch-show-strip-re (notmuch-show-get-pretty-subject)))
-
-    (notmuch-show-mark-read)))
+    (setq header-line-format (notmuch-show-strip-re (notmuch-show-get-pretty-subject)))))
 
 (defun notmuch-show-capture-state ()
   "Capture the state of the current buffer.
@@ -1132,7 +1133,10 @@ buffer is stored and re-applied after the refresh."
     (erase-buffer)
     (notmuch-show-worker)
     (if state
-	(notmuch-show-apply-state state))))
+	(notmuch-show-apply-state state)
+      ;; Refreshing with state reset navigates to the first open
+      ;; message, so mark read like any other navigation operation.
+      (notmuch-show-mark-read))))
 
 (defvar notmuch-show-stash-map
   (let ((map (make-sparse-keymap)))
-- 
1.7.7.3