From 25ae57058383ea58a8c77e709f3509fd64a47afe Mon Sep 17 00:00:00 2001
From: jao <jao@gnu.org>
Date: Sun, 9 Jan 2022 03:43:14 +0000
Subject: notmuch: message counts only in header line

---
 lib/net/jao-notmuch.el | 64 +++++++++++++++++++-------------------------------
 1 file changed, 24 insertions(+), 40 deletions(-)

(limited to 'lib')

diff --git a/lib/net/jao-notmuch.el b/lib/net/jao-notmuch.el
index ea8dc2a..f11556e 100644
--- a/lib/net/jao-notmuch.el
+++ b/lib/net/jao-notmuch.el
@@ -228,18 +228,6 @@
 
 ;;;; Keeping track of unread messages in current tree view
 
-(defvar-local jao-notmuch--query-name nil)
-
-(defun jao-notmuch--query-name ()
-  (when notmuch-tree-basic-query
-    (or jao-notmuch--query-name
-        (setq jao-notmuch--query-name
-              (let ((q (seq-find (lambda (q)
-                                   (string= (or (plist-get q :query) "")
-                                            notmuch-tree-basic-query))
-                                 notmuch-saved-searches)))
-                (or (plist-get q :name) notmuch-tree-basic-query))))))
-
 (defun jao-notmuch--looking-at-new-p (&optional p)
   (when-let (ts (if p (plist-get p :tags) (notmuch-show-get-tags)))
     (or (member "unread" ts) (member "new" ts))))
@@ -247,7 +235,7 @@
 (defsubst jao-notmuch-tree--first-p (&optional msg)
   (plist-get (or msg (notmuch-tree-get-message-properties)) :first))
 
-(defun jao-notmuch--unread-counts (&optional thread)
+(defun jao-notmuch--message-counts (&optional thread)
   (let ((cnt) (total 0) (match 0) (msg))
     (save-excursion
       (if thread
@@ -265,41 +253,38 @@
         (forward-line 1)))
     (when cnt (list total match cnt))))
 
-(defvar jao-notmuch-tree-buffer-name-format "%Q")
-(defvar jao-notmuch-header-line-format "[%N / %M / %T] %n / %m / %t  -  %S")
+(defvar jao-notmuch-header-line-format "%S  -  %Q  [%N / %M / %T] %n / %m / %t")
 
-(defun jao-notmuch-tree--format-name (sb query total match new ttotal tmatch tnew)
-  (format-spec (if sb
-                   jao-notmuch-header-line-format
-                 jao-notmuch-tree-buffer-name-format)
+(defun jao-notmuch--format-counts (sb query total match new ttotal tmatch tnew)
+  (format-spec jao-notmuch-header-line-format
                `((?S . ,sb) (?Q . ,query) (?T . ,total) (?N . ,new) (?M . ,match)
                  (?t . ,ttotal) (?n . ,tnew) (?m . ,tmatch))))
 
-(defun jao-notmuch--update-header-line (q nc)
-  (let ((s (thread-last (notmuch-show-get-subject)
-                        (notmuch-show-strip-re)
-                        (notmuch-sanitize))))
-    (setq-local header-line-format
-                (apply 'jao-notmuch-tree--format-name s q nc))))
-
-(defun jao-notmuch--tree-update-buffer-name (&optional mb)
-  (when-let* ((n (jao-notmuch--unread-counts))
-              (nc (append n (jao-notmuch--unread-counts t)))
-              (q (jao-notmuch--query-name)))
-    (prog1 (rename-buffer (apply #'jao-notmuch-tree--format-name nil q nc))
-      (when mb (with-current-buffer mb (jao-notmuch--update-header-line q nc)))
-      (when (fboundp 'jao-minibuffer-refresh) (jao-minibuffer-refresh)))))
-
-(defun jao-notmuch-tree--find-update-buffer-name (&rest _args)
-  (when-let ((mb (window-buffer notmuch-tree-message-window)))
+(defun jao-notmuch--update-header-line (mb)
+  (let* ((n (or (jao-notmuch--message-counts) '(0 0 0)))
+         (nc (append n (or (jao-notmuch--message-counts t) '(0 0 0))))
+         (q (buffer-name)))
+    (with-current-buffer mb
+      (let ((s (thread-last (notmuch-show-get-subject)
+                            (notmuch-show-strip-re)
+                            (notmuch-sanitize))))
+        (setq-local header-line-format
+                    (apply 'jao-notmuch--format-counts s q nc))))))
+
+(defun jao-notmuch-tree--find-update-header-line (&rest _args)
+  (when-let ((mb (if (derived-mode-p 'notmuch-show-mode)
+                     (current-buffer)
+                   (window-buffer notmuch-tree-message-window))))
     (seq-find (lambda (b)
                 (with-current-buffer b
                   (and (derived-mode-p 'notmuch-tree-mode)
-                       (eq notmuch-tree-message-buffer mb)
-                       (jao-notmuch--tree-update-buffer-name mb))))
+                       (or (null notmuch-tree-message-buffer)
+                           (eq notmuch-tree-message-buffer mb))
+                       (jao-notmuch--update-header-line mb))))
               (buffer-list))))
 
-(add-hook 'notmuch-after-tag-hook #'jao-notmuch-tree--find-update-buffer-name)
+(add-hook 'notmuch-after-tag-hook #'jao-notmuch-tree--find-update-header-line)
+(add-hook 'notmuch-show-hook #'jao-notmuch-tree--find-update-header-line)
 
 
 ;;;; Outline mode for tree view
@@ -375,7 +360,6 @@
 
 (defun jao-notmuch--tree-sentinel (proc &rest _)
   (when (eq (process-status proc) 'exit)
-    (jao-notmuch--tree-update-buffer-name)
     (jao-notmuch-tree-hide-others)))
 
 (defun jao-notmuch-tree-setup (&optional prefix)
-- 
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