Define a keymap for attachment buttons to allow multiple actions.
Define 3 possible actions:
save attachment: exactly as currently,
view attachment: uses mailcap entry,
view attachment with user chosen program
Keymap on a button is: s for save, v for view and o for view with
other program. Default (i.e. enter or mouse button) is save but is
easily configurable e.g. set to view with
(setq notmuch-show-part-button-default-action 'notmuch-show-part-view-action)
One implementation detail: the view attachment function forces all
attachments to be "displayed" using mailcap even if emacs could
display them itself. Thus, for example, text/html appears in a browser
and text/plain asks whether to save (on a standard debian setup)
---
emacs/notmuch-show.el | 81 ++++++++++++++++++++++++++++++++++++++----------
1 files changed, 64 insertions(+), 17 deletions(-)
diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
index 03c1f6b..a1c0e63 100644
--- a/emacs/notmuch-show.el
+++ b/emacs/notmuch-show.el
@@ -281,10 +281,21 @@ message at DEPTH in the current thread."
(run-hooks 'notmuch-show-markup-headers-hook)))))
(define-button-type 'notmuch-show-part-button-type
- 'action 'notmuch-show-part-button-action
+ 'action 'notmuch-show-part-button-default
+ 'keymap 'notmuch-show-part-button-map
'follow-link t
'face 'message-mml)
+(defvar notmuch-show-part-button-map
+ (let ((map (make-sparse-keymap)))
+ (set-keymap-parent map button-map)
+ (define-key map "s" 'notmuch-show-part-button-save)
+ (define-key map "v" 'notmuch-show-part-button-view)
+ (define-key map "o" 'notmuch-show-part-button-interactively-view)
+ map)
+ "Submap for button commands")
+(fset 'notmuch-show-part-button-map notmuch-show-part-button-map)
+
(defun notmuch-show-insert-part-header (nth content-type declared-type
&optional name comment)
(let ((button))
(setq button
@@ -299,29 +310,43 @@ message at DEPTH in the current thread."
" ]")
:type 'notmuch-show-part-button-type
:notmuch-part nth
- :notmuch-filename name))
+ :notmuch-filename name
+ :notmuch-content-type content-type))
(insert "\n")
;; return button
button))
;; Functions handling particular MIME parts.
+;; this function is kept for the tests and any external users
(defun notmuch-show-save-part (message-id nth &optional filename)
+ (notmuch-show-part-action 'notmuch-show-part-save-action message-id nth nil
filename))
+
+(defun notmuch-show-part-action (action message-id nth content-type &optional
filename)
(let ((process-crypto notmuch-show-process-crypto))
(with-temp-buffer
(setq notmuch-show-process-crypto process-crypto)
;; Always acquires the part via `notmuch part', even if it is
;; available in the JSON output.
(insert (notmuch-show-get-bodypart-internal message-id nth))
- (let ((file (read-file-name
- "Filename to save as: "
- (or mailcap-download-directory "~/")
- nil nil
- filename)))
- ;; Don't re-compress .gz & al. Arguably we should make
- ;; `file-name-handler-alist' nil, but that would chop
- ;; ange-ftp, which is reasonable to use here.
- (mm-write-region (point-min) (point-max) file nil nil nil
'no-conversion t)))))
+ (cond ((eq action 'notmuch-show-part-save-action)
+ (let ((file (read-file-name
+ "Filename to save as: "
+ (or mailcap-download-directory "~/")
+ nil nil
+ filename)))
+ ;; Don't re-compress .gz & al. Arguably we should make
+ ;; `file-name-handler-alist' nil, but that would chop
+ ;; ange-ftp, which is reasonable to use here.
+ (mm-write-region (point-min) (point-max) file nil nil nil
'no-conversion t)))
+ ((eq action 'notmuch-show-part-view-action)
+ ;; set mm-inlined-types to nil to force an external viewer
+ (let ((handle (mm-make-handle (current-buffer) (list
content-type)))
+ (mm-inlined-types nil))
+ (mm-display-part handle)))
+ ((eq action 'notmuch-show-part-interactively-view-action)
+ (let ((handle (mm-make-handle (current-buffer) (list
content-type))))
+ (mm-interactively-view-part handle)))))))
(defun notmuch-show-mm-display-part-inline (msg part nth content-type)
"Use the mm-decode/mm-view functions to display a part in the
@@ -1502,12 +1527,34 @@ buffer."
;; Commands typically bound to buttons.
-(defun notmuch-show-part-button-action (button)
- (let ((nth (button-get button :notmuch-part)))
- (if nth
- (notmuch-show-save-part (notmuch-show-get-message-id) nth
- (button-get button :notmuch-filename))
- (message "Not a valid part (is it a fake part?)."))))
+(defvar notmuch-show-part-button-default-action
'notmuch-show-part-save-action)
+
+(defun notmuch-show-part-button-default (&optional button)
+ (interactive)
+ (notmuch-show-part-button notmuch-show-part-button-default-action button))
+
+(defun notmuch-show-part-button-save (&optional button)
+ (interactive)
+ (notmuch-show-part-button 'notmuch-show-part-save-action button))
+
+(defun notmuch-show-part-button-view (&optional button)
+ (interactive)
+ (notmuch-show-part-button 'notmuch-show-part-view-action button))
+
+(defun notmuch-show-part-button-interactively-view (&optional button)
+ (interactive)
+ (notmuch-show-part-button 'notmuch-show-part-interactively-view-action
button))
+
+(defun notmuch-show-part-button (action &optional button)
+ (interactive)
+ (let ((button (or button (button-at (point)))))
+ (if button
+ (let ((nth (button-get button :notmuch-part)))
+ (if nth
+ (notmuch-show-part-action action (notmuch-show-get-message-id) nth
+ (button-get button :notmuch-content-type)
+ (button-get button :notmuch-filename))
+ (message "Not a valid part (is it a fake part?)."))))))
;;
--
1.7.2.3
