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emacs: show: hide large text attachments by default

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notmuch-show can be slow displaying large attachments so hide them by
default. The default maximum size is 10000 bytes/characters but it is
customizable.

Note that notmuch-show-insert-bodypart is also called from the reply
code so we need to be a little careful.
This commit is contained in:
Mark Walters 2015-03-28 11:08:59 +00:00 committed by David Bremner
parent 3d1483df12
commit 6518f0d2bc
1 changed files with 15 additions and 2 deletions
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17
emacs/notmuch-show.el
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@ -99,6 +99,13 @@ visible for any given message."
:group 'notmuch-show :group 'notmuch-show
:group 'notmuch-hooks) :group 'notmuch-hooks)
(defcustom notmuch-show-max-text-part-size 10000
"Maximum size of a text part to be shown by default in characters.
Set to 0 to show the part regardless of size."
:type 'integer
:group 'notmuch-show)
;; Mostly useful for debugging. ;; Mostly useful for debugging.
(defcustom notmuch-show-all-multipart/alternative-parts nil (defcustom notmuch-show-all-multipart/alternative-parts nil
"Should all parts of multipart/alternative parts be shown?" "Should all parts of multipart/alternative parts be shown?"
@ -937,14 +944,20 @@ useful for quoting in replies)."
"text/x-diff") "text/x-diff")
content-type)) content-type))
(nth (plist-get part :id)) (nth (plist-get part :id))
(long (and (notmuch-match-content-type mime-type "text/*")
(> notmuch-show-max-text-part-size 0)
(> (length (plist-get part :content)) notmuch-show-max-text-part-size)))
(beg (point)) (beg (point))
;; Hide the part initially if HIDE is t.
(show-part (not (equal hide t)))
;; We omit the part button for the first (or only) part if ;; We omit the part button for the first (or only) part if
;; this is text/plain, or HIDE is 'no-buttons. ;; this is text/plain, or HIDE is 'no-buttons.
(button (unless (or (equal hide 'no-buttons) (button (unless (or (equal hide 'no-buttons)
(and (string= mime-type "text/plain") (<= nth 1))) (and (string= mime-type "text/plain") (<= nth 1)))
(notmuch-show-insert-part-header nth mime-type content-type (plist-get part :filename)))) (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
;; uses 'no-buttons automatically includes long parts)
(show-part (not (or (equal hide t)
(and long button))))
(content-beg (point))) (content-beg (point)))
;; Store the computed mime-type for later use (e.g. by attachment handlers). ;; Store the computed mime-type for later use (e.g. by attachment handlers).