[PATCH] emacs/notmuch-show.el: Add `notmuch-show-toggle-all' bound to M-RET

[David Edmondson]

`notmuch-show-toggle-all' changes the visibility all of the messages
in the current thread. By default it makes all of the messages
visible. With a prefix argument, it makes them all not visible.
---
 emacs/notmuch-show.el |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
index 916b39e..9775fb4 100644
--- a/emacs/notmuch-show.el
+++ b/emacs/notmuch-show.el
@@ -526,6 +526,7 @@ function is used. "
 	(define-key map "p" 'notmuch-show-previous-open-message)
 	(define-key map (kbd "DEL") 'notmuch-show-rewind)
 	(define-key map " " 'notmuch-show-advance-and-archive)
+	(define-key map (kbd "M-RET") 'notmuch-show-toggle-all)
 	(define-key map (kbd "RET") 'notmuch-show-toggle-message)
 	map)
       "Keymap for \"notmuch show\" buffers.")
@@ -900,6 +901,18 @@ to stdout or stderr will appear in the *Messages* buffer."
      (not (plist-get props :message-visible))))
   (force-window-update))
 
+(defun notmuch-show-toggle-all ()
+  "Change the visibility all of the messages in the current
+thread. By default make all of the messages visible. With a
+prefix argument, make them all not visible."
+  (interactive)
+  (save-excursion
+    (goto-char (point-min))
+    (loop do (notmuch-show-message-visible (notmuch-show-get-message-properties)
+					   (not current-prefix-arg))
+	  until (not (notmuch-show-goto-message-next))))
+  (force-window-update))
+
 (defun notmuch-show-next-button ()
   "Advance point to the next button in the buffer."
   (interactive)
-- 
1.7.0