Add various functions to print notmuch messages and tie them together
with a simple frontend.
Add a binding ('#') in `notmuch-show-mode' to print the current
message.
---
Updates based on Aaron's review - the comments were very useful in
improving things - thanks!
Add a keybinding to `notmuch-show-mode'.
emacs/Makefile.local | 3 +-
emacs/notmuch-print.el | 85 ++++++++++++++++++++++++++++++++++++++++++++++++
emacs/notmuch-show.el | 53 ++++++++++++++++++++++++++++++
3 files changed, 140 insertions(+), 1 deletions(-)
create mode 100644 emacs/notmuch-print.el
diff --git a/emacs/Makefile.local b/emacs/Makefile.local
index 0c58b82..4fee0e8 100644
--- a/emacs/Makefile.local
+++ b/emacs/Makefile.local
@@ -13,7 +13,8 @@ emacs_sources := \
$(dir)/notmuch-maildir-fcc.el \
$(dir)/notmuch-message.el \
$(dir)/notmuch-crypto.el \
- $(dir)/coolj.el
+ $(dir)/coolj.el \
+ $(dir)/notmuch-print.el
emacs_images := \
$(srcdir)/$(dir)/notmuch-logo.png
diff --git a/emacs/notmuch-print.el b/emacs/notmuch-print.el
new file mode 100644
index 0000000..77f10bb
--- /dev/null
+++ b/emacs/notmuch-print.el
@@ -0,0 +1,85 @@
+;; notmuch-print.el --- printing messages from notmuch.
+;;
+;; Copyright © David Edmondson
+;;
+;; This file is part of Notmuch.
+;;
+;; Notmuch is free software: you can redistribute it and/or modify it
+;; under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+;;
+;; Notmuch is distributed in the hope that it will be useful, but
+;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+;; General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with Notmuch. If not, see <http://www.gnu.org/licenses/>.
+;;
+;; Authors: David Edmondson <dme@dme.org>
+
+(defcustom notmuch-print-mechanism 'notmuch-print-lpr
+ "How should printing be done?"
+ :group 'notmuch
+ :type '(choice
+ (function :tag "Use lpr" notmuch-print-lpr)
+ (function :tag "Use ps-print" notmuch-print-ps-print)
+ (function :tag "Use ps-print then evince" notmuch-print-ps-print/evince)
+ (function :tag "Use muttprint" notmuch-print-muttprint)
+ (function :tag "Use muttprint then evince" notmuch-print-muttprint/evince)
+ (function :tag "Using a custom function")))
+
+;; Utility functions:
+
+(defun notmuch-print-run-evince (file)
+ "View FILE using 'evince'."
+ (start-process "evince" nil "evince" file))
+
+(defun notmuch-print-run-muttprint (&optional output)
+ "Pass the contents of the current buffer to 'muttprint'.
+
+Optional OUTPUT allows passing a list of flags to muttprint."
+ (apply #'call-process-region (point-min) (point-max)
+ ;; Reads from stdin.
+ "muttprint"
+ nil nil nil
+ ;; Show the tags.
+ "--printed-headers" "Date_To_From_CC_Newsgroups_*Subject*_/Tags/"
+ output))
+
+;; User-visible functions:
+
+(defun notmuch-print-lpr (msg)
+ "Print a message buffer using lpr."
+ (lpr-buffer))
+
+(defun notmuch-print-ps-print (msg)
+ "Print a message buffer using the ps-print package."
+ (let ((subject (plist-get (notmuch-show-get-prop :headers msg) :Subject)))
+ (rename-buffer subject t)
+ (ps-print-buffer)))
+
+(defun notmuch-print-ps-print/evince (msg)
+ "Preview a message buffer using ps-print and evince."
+ (let ((ps-file (make-temp-file "notmuch"))
+ (subject (plist-get (notmuch-show-get-prop :headers msg) :Subject)))
+ (rename-buffer subject t)
+ (ps-print-buffer ps-file)
+ (notmuch-print-run-evince ps-file)))
+
+(defun notmuch-print-muttprint (msg)
+ "Print a message using muttprint."
+ (notmuch-print-run-muttprint))
+
+(defun notmuch-print-muttprint/evince (msg)
+ "Preview a message buffer using muttprint and evince."
+ (let ((ps-file (make-temp-file "notmuch")))
+ (notmuch-print-run-muttprint (list "--printer" (concat "TO_FILE:" ps-file)))
+ (notmuch-print-run-evince ps-file)))
+
+(defun notmuch-print-message (msg)
+ "Print a message using the user-selected mechanism."
+ (funcall notmuch-print-mechanism msg))
+
+(provide 'notmuch-print)
diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
index 797f94b..db25565 100644
--- a/emacs/notmuch-show.el
+++ b/emacs/notmuch-show.el
@@ -34,6 +34,7 @@
(require 'notmuch-wash)
(require 'notmuch-mua)
(require 'notmuch-crypto)
+(require 'notmuch-print)
(declare-function notmuch-call-notmuch-process "notmuch" (&rest args))
(declare-function notmuch-fontify-headers "notmuch" nil)
@@ -186,6 +187,52 @@ indentation."
mm-handle (> (notmuch-count-attachments mm-handle) 1))))
(message "Done"))
+(defun notmuch-show-with-message-as-text (fn)
+ "Apply FN to a text representation of the current message.
+
+FN is called with one argument, the message properties. It should
+operation on the contents of the current buffer."
+
+ ;; Remake the header to ensure that all information is available.
+ (let* ((to (notmuch-show-get-to))
+ (cc (notmuch-show-get-cc))
+ (from (notmuch-show-get-from))
+ (subject (notmuch-show-get-subject))
+ (date (notmuch-show-get-date))
+ (tags (notmuch-show-get-tags))
+ (depth (notmuch-show-get-depth))
+
+ (header (concat
+ "Subject: " subject "\n"
+ "To: " to "\n"
+ (if (not (string= cc ""))
+ (concat "Cc: " cc "\n")
+ "")
+ "From: " from "\n"
+ "Date: " date "\n"
+ (if tags
+ (concat "Tags: "
+ (mapconcat #'identity tags ", ") "\n")
+ "")))
+ (all (buffer-substring (notmuch-show-message-top)
+ (notmuch-show-message-bottom)))
+
+ (props (notmuch-show-get-message-properties)))
+ (with-temp-buffer
+ (insert all)
+ (indent-rigidly (point-min) (point-max) (- depth))
+ ;; Remove the original header.
+ (goto-char (point-min))
+ (re-search-forward "^$" (point-max) nil)
+ (delete-region (point-min) (point))
+ (insert header)
+ (funcall fn props))))
+
+(defun notmuch-show-print-message ()
+ "Print the current message."
+ (interactive)
+ (notmuch-show-with-message-as-text 'notmuch-print-message))
+
(defun notmuch-show-fontify-header ()
(let ((face (cond
((looking-at "[Tt]o:")
@@ -757,6 +804,8 @@ current buffer, if possible."
(overlay-put headers-overlay 'priority 10))
(overlay-put (make-overlay body-start body-end) 'invisible message-invis-spec)
+ (plist-put msg :depth depth)
+
;; Save the properties for this message. Currently this saves the
;; entire message (augmented it with other stuff), which seems
;; like overkill. We might save a reduced subset (for example, not
@@ -947,6 +996,7 @@ thread id. If a prefix is given, crypto processing is toggled."
(define-key map " " 'notmuch-show-advance-and-archive)
(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)
map)
"Keymap for \"notmuch show\" buffers.")
(fset 'notmuch-show-mode-map notmuch-show-mode-map)
@@ -1107,6 +1157,9 @@ Some useful entries are:
(defun notmuch-show-get-to ()
(notmuch-show-get-header :To))
+(defun notmuch-show-get-depth ()
+ (notmuch-show-get-prop :depth))
+
(defun notmuch-show-set-tags (tags)
"Set the tags of the current message."
(notmuch-show-set-prop :tags tags)
--
1.7.7.3