From: David Edmondson <d...@dme.org>
This allows callers of notmuch-show-insert-bodypart to use a `let'
binding to override the default function for specifying when part
headers should be inserted.
---
emacs/notmuch-show.el | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
index f8184e2..f4a65cc 100644
--- a/emacs/notmuch-show.el
+++ b/emacs/notmuch-show.el
@@ -945,8 +945,16 @@ (defun notmuch-show-mime-type (part)
"text/x-diff")
content-type)))
+;; The following variable can be overridden by let bindings.
+(defvar notmuch-show-insert-header-p-function 'notmuch-show-insert-header-p
+ "Specify which function decides which part headers get inserted.
+
+The function should take two parameters, PART and HIDE, and
+should return non-NIL if a header button should be inserted for
+this part.")
+
(defun notmuch-show-insert-header-p (part hide)
- "Return non-NIL if a header button should be inserted for this part."
+ ;; Show all part buttons except for the first part if it is text/plain.
(let ((mime-type (notmuch-show-mime-type part)))
(not (and (string= mime-type "text/plain")
(<= (plist-get part :id) 1)))))
@@ -965,9 +973,9 @@ (defun notmuch-show-insert-bodypart (msg part depth
&optional hide)
(> notmuch-show-max-text-part-size 0)
(> (length (plist-get part :content))
notmuch-show-max-text-part-size)))
(beg (point))
- ;; We omit the part button for the first (or only) part if
- ;; this is text/plain, or HIDE is 'no-buttons.
- (button (when (notmuch-show-insert-header-p part hide)
+ ;; This default header-p function omits the part button for
+ ;; the first (or only) part if this is text/plain.
+ (button (when (funcall notmuch-show-insert-header-p-function part hide)
(notmuch-show-insert-part-header nth mime-type content-type
(plist-get part :filename))))
;; Hide the part initially if HIDE is t, or if it is too long
;; and we have a button to allow toggling (thus reply which
--
2.1.4
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