emacs: show: add overlays for each part

This makes notmuch-show-insert-bodypart add an overlay for any
non-trivial part with a button header (currently the first text/plain
part does not have a button). At this point the overlay is available
to the button but there is no action using it yet.

In addition the argument HIDE is passed down to
notmuch-show-insert-part-overlays to request that the part be hidden
by default but this is not acted on yet.
This commit is contained in:
Mark Walters 2012-12-18 19:27:58 +00:00 committed by David Bremner
parent fff2ea2ba9
commit 0c3a63f1af

View file

@ -567,11 +567,10 @@ message at DEPTH in the current thread."
;; but it's not clear that this is the wrong thing to do - which
;; should be chosen if there are more than one that match?
(mapc (lambda (inner-part)
(let ((inner-type (plist-get inner-part :content-type)))
(if (or notmuch-show-all-multipart/alternative-parts
(string= chosen-type inner-type))
(notmuch-show-insert-bodypart msg inner-part depth)
(notmuch-show-insert-part-header (plist-get inner-part :id) inner-type inner-type nil " (not shown)"))))
(let* ((inner-type (plist-get inner-part :content-type))
(hide (not (or notmuch-show-all-multipart/alternative-parts
(string= chosen-type inner-type)))))
(notmuch-show-insert-bodypart msg inner-part depth hide)))
inner-parts)
(when notmuch-show-indent-multipart
@ -839,17 +838,33 @@ message at DEPTH in the current thread."
(setq handlers (cdr handlers))))
t)
(defun notmuch-show-insert-bodypart (msg part depth)
"Insert the body part PART at depth DEPTH in the current thread."
(defun notmuch-show-create-part-overlays (msg beg end hide)
"Add an overlay to the part between BEG and END"
(let* ((button (button-at beg))
(part-beg (and button (1+ (button-end button)))))
;; If the part contains no text we do not make it toggleable. We
;; also need to check that the button is a genuine part button not
;; a notmuch-wash button.
(when (and button (/= part-beg end) (button-get button :base-label))
(button-put button 'overlay (make-overlay part-beg end)))))
(defun notmuch-show-insert-bodypart (msg part depth &optional hide)
"Insert the body part PART at depth DEPTH in the current thread.
If HIDE is non-nil then initially hide this part."
(let ((content-type (downcase (plist-get part :content-type)))
(nth (plist-get part :id)))
(notmuch-show-insert-bodypart-internal msg part content-type nth depth content-type))
;; Some of the body part handlers leave point somewhere up in the
;; part, so we make sure that we're down at the end.
(goto-char (point-max))
;; Ensure that the part ends with a carriage return.
(unless (bolp)
(insert "\n")))
(nth (plist-get part :id))
(beg (point)))
(notmuch-show-insert-bodypart-internal msg part content-type nth depth content-type)
;; Some of the body part handlers leave point somewhere up in the
;; part, so we make sure that we're down at the end.
(goto-char (point-max))
;; Ensure that the part ends with a carriage return.
(unless (bolp)
(insert "\n"))
(notmuch-show-create-part-overlays msg beg (point) hide)))
(defun notmuch-show-insert-body (msg body depth)
"Insert the body BODY at depth DEPTH in the current thread."