[PATCH v7 1/8] emacs: Rework crypto switch toggle.
David Edmondson
dme at dme.org
Tue Feb 7 22:21:34 PST 2012
On Wed, 8 Feb 2012 00:10:16 -0500, Austin Clements <amdragon at MIT.EDU> wrote:
> Seems reasonable. I'm definitely in favor of erasing buffers instead
> of killing and recreating them. Two questions below.
Thanks for the review.
> Quoth David Edmondson on Feb 06 at 9:21 am:
> > Re-work the existing crypto switch toggle to be based on a persistant
> > buffer-local variable.
> >
> > To allow this, modify `notmuch-show-refresh-view' to erase and re-draw
> > in the current buffer rather than killing the current buffer and
> > creating a new one. (This will also allow more per-buffer behaviour in
> > future patches.)
> >
> > Add a binding ('$') to toggle crypto processing of the current buffer
> > and remove the prefix argument approach that achieves a similar
> > result.
> > ---
> > emacs/notmuch-show.el | 126 ++++++++++++++++++++++++------------------------
> > emacs/notmuch.el | 7 +--
> > 2 files changed, 66 insertions(+), 67 deletions(-)
> >
> > diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
> > index 7469e2e..4b29dbd 100644
> > --- a/emacs/notmuch-show.el
> > +++ b/emacs/notmuch-show.el
> > @@ -125,6 +125,22 @@ indentation."
> > (const :tag "View interactively"
> > notmuch-show-interactively-view-part)))
> >
> > +(defvar notmuch-show-thread-id nil)
> > +(make-variable-buffer-local 'notmuch-show-thread-id)
> > +(put 'notmuch-show-thread-id 'permanent-local t)
> > +
> > +(defvar notmuch-show-parent-buffer nil)
> > +(make-variable-buffer-local 'notmuch-show-parent-buffer)
> > +(put 'notmuch-show-parent-buffer 'permanent-local t)
> > +
> > +(defvar notmuch-show-query-context nil)
> > +(make-variable-buffer-local 'notmuch-show-query-context)
> > +(put 'notmuch-show-query-context 'permanent-local t)
> > +
> > +(defvar notmuch-show-process-crypto nil)
> > +(make-variable-buffer-local 'notmuch-show-process-crypto)
> > +(put 'notmuch-show-process-crypto 'permanent-local t)
> > +
>
> Do these need to be permanent-local given that refreshing is now done
> by erasing the buffer instead of killing it?
Yes. `notmuch-show-worker' (which does the refreshing) still calls
`notmuch-show-mode', which still calls `kill-all-local-variables'.
Tidying that is for another patch.
> > (defmacro with-current-notmuch-show-message (&rest body)
> > "Evaluate body with current buffer set to the text of current message"
> > `(save-excursion
> > @@ -421,14 +437,11 @@ message at DEPTH in the current thread."
> >
> > (defmacro notmuch-with-temp-part-buffer (message-id nth &rest body)
> > (declare (indent 2))
> > - (let ((process-crypto (make-symbol "process-crypto")))
> > - `(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))
> > - , at body))))
> > + `(with-temp-buffer
> > + ;; 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))
> > + , at body))
>
> Why is the piping of notmuch-show-process-crypto no longer necessary?
> It's still buffer-local, and hence will be nil in the temp buffer.
It's a bug. v8 after breakfast.
> >
> > (defun notmuch-show-save-part (message-id nth &optional filename content-type)
> > (notmuch-with-temp-part-buffer message-id nth
> > @@ -610,7 +623,7 @@ current buffer, if possible."
> > (sigstatus (car (plist-get part :sigstatus))))
> > (notmuch-crypto-insert-sigstatus-button sigstatus from))
> > ;; if we're not adding sigstatus, tell the user how they can get it
> > - (button-put button 'help-echo "Set notmuch-crypto-process-mime to process cryptographic mime parts.")))
> > + (button-put button 'help-echo "Set notmuch-crypto-process-mime to process cryptographic MIME parts.")))
> >
> > (let ((inner-parts (plist-get part :content))
> > (start (point)))
> > @@ -636,7 +649,7 @@ current buffer, if possible."
> > (sigstatus (car (plist-get part :sigstatus))))
> > (notmuch-crypto-insert-sigstatus-button sigstatus from))))
> > ;; if we're not adding encstatus, tell the user how they can get it
> > - (button-put button 'help-echo "Set notmuch-crypto-process-mime to process cryptographic mime parts.")))
> > + (button-put button 'help-echo "Set notmuch-crypto-process-mime to process cryptographic MIME parts.")))
> >
> > (let ((inner-parts (plist-get part :content))
> > (start (point)))
> > @@ -763,8 +776,6 @@ current buffer, if possible."
> >
> > ;; Helper for parts which are generally not included in the default
> > ;; JSON output.
> > -;; Uses the buffer-local variable notmuch-show-process-crypto to
> > -;; determine if parts should be decrypted first.
> > (defun notmuch-show-get-bodypart-internal (message-id part-number)
> > (let ((args '("show" "--format=raw"))
> > (part-arg (format "--part=%s" part-number)))
> > @@ -918,6 +929,15 @@ current buffer, if possible."
> > ;; criteria.
> > (notmuch-show-message-visible msg (plist-get msg :match))))
> >
> > +(defun notmuch-show-toggle-process-crypto ()
> > + "Toggle the processing of cryptographic MIME parts."
> > + (interactive)
> > + (setq notmuch-show-process-crypto (not notmuch-show-process-crypto))
> > + (message (if notmuch-show-process-crypto
> > + "Processing cryptographic MIME parts."
> > + "Not processing cryptographic MIME parts."))
> > + (notmuch-show-refresh-view))
> > +
> > (defun notmuch-show-insert-tree (tree depth)
> > "Insert the message tree TREE at depth DEPTH in the current thread."
> > (let ((msg (car tree))
> > @@ -933,15 +953,6 @@ current buffer, if possible."
> > "Insert the forest of threads FOREST."
> > (mapc (lambda (thread) (notmuch-show-insert-thread thread 0)) forest))
> >
> > -(defvar notmuch-show-thread-id nil)
> > -(make-variable-buffer-local 'notmuch-show-thread-id)
> > -(defvar notmuch-show-parent-buffer nil)
> > -(make-variable-buffer-local 'notmuch-show-parent-buffer)
> > -(defvar notmuch-show-query-context nil)
> > -(make-variable-buffer-local 'notmuch-show-query-context)
> > -(defvar notmuch-show-buffer-name nil)
> > -(make-variable-buffer-local 'notmuch-show-buffer-name)
> > -
> > (defun notmuch-show-buttonise-links (start end)
> > "Buttonise URLs and mail addresses between START and END.
> >
> > @@ -961,7 +972,7 @@ a corresponding notmuch search."
> > 'face goto-address-mail-face))))
> >
> > ;;;###autoload
> > -(defun notmuch-show (thread-id &optional parent-buffer query-context buffer-name crypto-switch)
> > +(defun notmuch-show (thread-id &optional parent-buffer query-context buffer-name)
> > "Run \"notmuch show\" with the given thread ID and display results.
> >
> > The optional PARENT-BUFFER is the notmuch-search buffer from
> > @@ -976,46 +987,41 @@ non-nil.
> > The optional BUFFER-NAME provides the name of the buffer in
> > which the message thread is shown. If it is nil (which occurs
> > when the command is called interactively) the argument to the
> > -function is used.
> > -
> > -The optional CRYPTO-SWITCH toggles the value of the
> > -notmuch-crypto-process-mime customization variable for this show
> > -buffer."
> > +function is used."
> > (interactive "sNotmuch show: ")
> > - (let* ((process-crypto (if crypto-switch
> > - (not notmuch-crypto-process-mime)
> > - notmuch-crypto-process-mime)))
> > - (notmuch-show-worker thread-id parent-buffer query-context buffer-name process-crypto)))
> > -
> > -(defun notmuch-show-worker (thread-id parent-buffer query-context buffer-name process-crypto)
> > - (let* ((buffer-name (generate-new-buffer-name
> > - (or buffer-name
> > - (concat "*notmuch-" thread-id "*"))))
> > - (buffer (get-buffer-create buffer-name))
> > - (inhibit-read-only t))
> > - (switch-to-buffer buffer)
> > + (let ((buffer-name (generate-new-buffer-name
> > + (or buffer-name
> > + (concat "*notmuch-" thread-id "*")))))
> > + (switch-to-buffer (get-buffer-create buffer-name))
> > + ;; Set the default value for `notmuch-show-process-crypto' in this
> > + ;; buffer.
> > + (setq notmuch-show-process-crypto notmuch-crypto-process-mime)
> > +
> > + (setq notmuch-show-thread-id thread-id
> > + notmuch-show-parent-buffer parent-buffer
> > + notmuch-show-query-context query-context)
> > + (notmuch-show-worker)))
> > +
> > +(defun notmuch-show-worker ()
> > + (let ((inhibit-read-only t))
> > +
> > (notmuch-show-mode)
> > ;; Don't track undo information for this buffer
> > (set 'buffer-undo-list t)
> >
> > - (setq notmuch-show-thread-id thread-id)
> > - (setq notmuch-show-parent-buffer parent-buffer)
> > - (setq notmuch-show-query-context query-context)
> > - (setq notmuch-show-buffer-name buffer-name)
> > - (setq notmuch-show-process-crypto process-crypto)
> > -
> > (erase-buffer)
> > (goto-char (point-min))
> > (save-excursion
> > - (let* ((basic-args (list thread-id))
> > - (args (if query-context
> > - (append (list "\'") basic-args (list "and (" query-context ")\'"))
> > + (let* ((basic-args (list notmuch-show-thread-id))
> > + (args (if notmuch-show-query-context
> > + (append (list "\'") basic-args
> > + (list "and (" notmuch-show-query-context ")\'"))
> > (append (list "\'") basic-args (list "\'")))))
> > (notmuch-show-insert-forest (notmuch-query-get-threads args))
> > ;; If the query context reduced the results to nothing, run
> > ;; the basic query.
> > (when (and (eq (buffer-size) 0)
> > - query-context)
> > + notmuch-show-query-context)
> > (notmuch-show-insert-forest
> > (notmuch-query-get-threads basic-args))))
> >
> > @@ -1032,21 +1038,14 @@ buffer."
> >
> > (notmuch-show-mark-read)))
> >
> > -(defun notmuch-show-refresh-view (&optional crypto-switch)
> > - "Refresh the current view (with crypto switch if prefix given).
> > +(defun notmuch-show-refresh-view ()
> > + "Refresh the current view.
> >
> > -Kills the current buffer and reruns notmuch show with the same
> > -thread id. If a prefix is given, crypto processing is toggled."
> > - (interactive "P")
> > - (let ((thread-id notmuch-show-thread-id)
> > - (parent-buffer notmuch-show-parent-buffer)
> > - (query-context notmuch-show-query-context)
> > - (buffer-name notmuch-show-buffer-name)
> > - (process-crypto (if crypto-switch
> > - (not notmuch-show-process-crypto)
> > - notmuch-show-process-crypto)))
> > - (notmuch-kill-this-buffer)
> > - (notmuch-show-worker thread-id parent-buffer query-context buffer-name process-crypto)))
> > +Refreshes the current view, observing changes in cryptographic preferences."
> > + (interactive)
> > + (let ((inhibit-read-only t))
> > + (erase-buffer))
> > + (notmuch-show-worker))
> >
> > (defvar notmuch-show-stash-map
> > (let ((map (make-sparse-keymap)))
> > @@ -1097,6 +1096,7 @@ thread id. If a prefix is given, crypto processing is toggled."
> > (define-key map (kbd "M-RET") 'notmuch-show-open-or-close-all)
> > (define-key map (kbd "RET") 'notmuch-show-toggle-message)
> > (define-key map "#" 'notmuch-show-print-message)
> > + (define-key map "$" 'notmuch-show-toggle-process-crypto)
> > map)
> > "Keymap for \"notmuch show\" buffers.")
> > (fset 'notmuch-show-mode-map notmuch-show-mode-map)
> > diff --git a/emacs/notmuch.el b/emacs/notmuch.el
> > index cd04ffd..ff0db99 100644
> > --- a/emacs/notmuch.el
> > +++ b/emacs/notmuch.el
> > @@ -463,9 +463,9 @@ Complete list of currently available key bindings:
> > "Return a list of authors for the current region"
> > (notmuch-search-properties-in-region 'notmuch-search-subject beg end))
> >
> > -(defun notmuch-search-show-thread (&optional crypto-switch)
> > +(defun notmuch-search-show-thread ()
> > "Display the currently selected thread."
> > - (interactive "P")
> > + (interactive)
> > (let ((thread-id (notmuch-search-find-thread-id))
> > (subject (notmuch-prettify-subject (notmuch-search-find-subject))))
> > (if (> (length thread-id) 0)
> > @@ -473,8 +473,7 @@ Complete list of currently available key bindings:
> > (current-buffer)
> > notmuch-search-query-string
> > ;; Name the buffer based on the subject.
> > - (concat "*" (truncate-string-to-width subject 30 nil nil t) "*")
> > - crypto-switch)
> > + (concat "*" (truncate-string-to-width subject 30 nil nil t) "*"))
> > (message "End of search results."))))
> >
> > (defun notmuch-search-reply-to-thread (&optional prompt-for-sender)
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