This adds a button action to show hidden parts. In this version "t"
toggles the visibility of a part. In addition "RET" on a non-shown
part shows it.
The button is used to hide parts when appropriate (eg text/html in
multipart/alternative).
---
emacs/notmuch-show.el | 35 +++++++++++++++++++++++++++++++++--
1 files changed, 33 insertions(+), 2 deletions(-)
diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
index b65c339..b11d65d 100644
--- a/emacs/notmuch-show.el
+++ b/emacs/notmuch-show.el
@@ -554,6 +554,28 @@ message at DEPTH in the current thread."
(let ((handle (mm-make-handle (current-buffer) (list content-type))))
(mm-pipe-part handle))))
+;; This is taken from notmuch-wash: maybe it should be unified?
+(defun notmuch-show-toggle-part-invisibility (&optional button)
+ (interactive)
+ (let* ((button (or button (button-at (point))))
+ (overlay (button-get button 'overlay))
+ (invis-spec (button-get button 'invisibility-spec))
+ (show (invisible-p invis-spec)))
+ (when overlay
+ (if show
+ (remove-from-invisibility-spec invis-spec)
+ (add-to-invisibility-spec invis-spec))
+ (let* ((new-start (button-start button))
+ (button-label (button-get button :base-label))
+ (old-point (point))
+ (inhibit-read-only t))
+ (goto-char new-start)
+ (insert "[ " button-label (if show " ]" " (hidden) ]"))
+ (let ((old-end (button-end button)))
+ (move-overlay button new-start (point))
+ (delete-region (point) old-end))
+ (goto-char (min old-point (1- (button-end button))))))))
+
(defun notmuch-show-multipart/*-to-list (part)
(mapcar (lambda (inner-part) (plist-get inner-part :content-type))
(plist-get part :content)))
@@ -862,7 +884,13 @@ message at DEPTH in the current thread."
(cons invis-spec (overlay-get inner
'invisible)))))
(button-put button 'invisibility-spec invis-spec)
- (button-put button 'overlay overlay)))))
+ (button-put button 'overlay overlay))
+
+ ;; We toggle the button for hidden parts as that gets the
+ ;; button label right.
+ (save-excursion
+ (when hide
+ (notmuch-show-toggle-part-invisibility button))))))
(defun notmuch-show-insert-bodypart (msg part depth &optional hide)
"Insert the body part PART at depth DEPTH in the current thread.
@@ -1991,7 +2019,10 @@ the user (see
`notmuch-show-stash-mlarchive-link-alist')."
(defun notmuch-show-part-button-default (&optional button)
(interactive)
- (notmuch-show-part-button-internal button
notmuch-show-part-button-default-action))
+ (let ((button (or button (button-at (point)))))
+ (if (button-get button 'invisibility-spec)
+ (notmuch-show-toggle-part-invisibility button)
+ (notmuch-show-part-button-internal button
notmuch-show-part-button-default-action))))
(defun notmuch-show-part-button-save (&optional button)
(interactive)
--
1.7.9.1
