mirror of
https://git.notmuchmail.org/git/notmuch
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e8414a72d4
To ease the transition to a JSON based implementation of `notmuch-show', move the current implementation into a separate file. Create `notmuch-lib.el' to hold common variables.
997 lines
37 KiB
EmacsLisp
997 lines
37 KiB
EmacsLisp
;; notmuch-show.el --- display notmuch messages within emacs
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;;
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;; Copyright © Carl Worth
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;;
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;; This file is part of Notmuch.
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;;
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;; Notmuch is free software: you can redistribute it and/or modify it
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;; under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;;
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;; Notmuch is distributed in the hope that it will be useful, but
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;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;; General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with Notmuch. If not, see <http://www.gnu.org/licenses/>.
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;;
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;; Authors: Carl Worth <cworth@cworth.org>
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;; This is an part of an emacs-based interface to the notmuch mail system.
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(require 'cl)
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(require 'mm-view)
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(require 'message)
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(require 'notmuch-lib)
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(declare-function notmuch-call-notmuch-process "notmuch" (&rest args))
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(declare-function notmuch-count-attachments "notmuch" (mm-handle))
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(declare-function notmuch-reply "notmuch" (query-string))
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(declare-function notmuch-fontify-headers "notmuch" nil)
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(declare-function notmuch-toggle-invisible-action "notmuch" (cite-button))
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(declare-function notmuch-select-tag-with-completion "notmuch" (prompt &rest search-terms))
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(declare-function notmuch-search-show-thread "notmuch" nil)
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(declare-function notmuch-save-attachments "notmuch" (mm-handle &optional queryp))
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(defvar notmuch-show-stash-map
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(let ((map (make-sparse-keymap)))
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(define-key map "c" 'notmuch-show-stash-cc)
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(define-key map "d" 'notmuch-show-stash-date)
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(define-key map "F" 'notmuch-show-stash-filename)
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(define-key map "f" 'notmuch-show-stash-from)
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(define-key map "i" 'notmuch-show-stash-message-id)
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(define-key map "s" 'notmuch-show-stash-subject)
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(define-key map "T" 'notmuch-show-stash-tags)
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(define-key map "t" 'notmuch-show-stash-to)
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map)
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"Submap for stash commands"
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)
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(fset 'notmuch-show-stash-map notmuch-show-stash-map)
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(defvar notmuch-show-mode-map
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(let ((map (make-sparse-keymap)))
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(define-key map "?" 'notmuch-help)
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(define-key map "q" 'kill-this-buffer)
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(define-key map (kbd "C-p") 'notmuch-show-previous-line)
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(define-key map (kbd "C-n") 'notmuch-show-next-line)
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(define-key map (kbd "M-TAB") 'notmuch-show-previous-button)
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(define-key map (kbd "TAB") 'notmuch-show-next-button)
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(define-key map "s" 'notmuch-search)
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(define-key map "m" 'message-mail)
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(define-key map "f" 'notmuch-show-forward-current)
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(define-key map "r" 'notmuch-show-reply)
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(define-key map "|" 'notmuch-show-pipe-message)
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(define-key map "w" 'notmuch-show-save-attachments)
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(define-key map "V" 'notmuch-show-view-raw-message)
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(define-key map "v" 'notmuch-show-view-all-mime-parts)
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(define-key map "c" 'notmuch-show-stash-map)
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(define-key map "b" 'notmuch-show-toggle-current-body)
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(define-key map "h" 'notmuch-show-toggle-current-header)
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(define-key map "-" 'notmuch-show-remove-tag)
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(define-key map "+" 'notmuch-show-add-tag)
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(define-key map "x" 'notmuch-show-archive-thread-then-exit)
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(define-key map "a" 'notmuch-show-archive-thread)
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(define-key map "P" 'notmuch-show-previous-message)
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(define-key map "N" 'notmuch-show-next-message)
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(define-key map "p" 'notmuch-show-previous-open-message)
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(define-key map "n" 'notmuch-show-next-open-message)
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(define-key map (kbd "DEL") 'notmuch-show-rewind)
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(define-key map " " 'notmuch-show-advance-and-archive)
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map)
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"Keymap for \"notmuch show\" buffers.")
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(fset 'notmuch-show-mode-map notmuch-show-mode-map)
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(defvar notmuch-show-signature-regexp "\\(-- ?\\|_+\\)$"
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"Pattern to match a line that separates content from signature.
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The regexp can (and should) include $ to match the end of the
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line, but should not include ^ to match the beginning of the
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line. This is because notmuch may have inserted additional space
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for indentation at the beginning of the line. But notmuch will
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move past the indentation when testing this pattern, (so that the
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pattern can still test against the entire line).")
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(defvar notmuch-show-signature-button-format
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"[ %d-line signature. Click/Enter to toggle visibility. ]"
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"String used to construct button text for hidden signatures
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Can use up to one integer format parameter, i.e. %d")
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(defvar notmuch-show-citation-button-format
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"[ %d more citation lines. Click/Enter to toggle visibility. ]"
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"String used to construct button text for hidden citations.
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Can use up to one integer format parameter, i.e. %d")
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(defvar notmuch-show-signature-lines-max 12
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"Maximum length of signature that will be hidden by default.")
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(defvar notmuch-show-citation-lines-prefix 4
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"Always show at least this many lines of a citation.
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If there is one more line, show that, otherwise collapse
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remaining lines into a button.")
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(defvar notmuch-show-message-begin-regexp "\fmessage{")
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(defvar notmuch-show-message-end-regexp "\fmessage}")
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(defvar notmuch-show-header-begin-regexp "\fheader{")
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(defvar notmuch-show-header-end-regexp "\fheader}")
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(defvar notmuch-show-body-begin-regexp "\fbody{")
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(defvar notmuch-show-body-end-regexp "\fbody}")
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(defvar notmuch-show-attachment-begin-regexp "\fattachment{")
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(defvar notmuch-show-attachment-end-regexp "\fattachment}")
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(defvar notmuch-show-part-begin-regexp "\fpart{")
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(defvar notmuch-show-part-end-regexp "\fpart}")
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(defvar notmuch-show-marker-regexp "\f\\(message\\|header\\|body\\|attachment\\|part\\)[{}].*$")
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(defvar notmuch-show-id-regexp "\\(id:[^ ]*\\)")
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(defvar notmuch-show-depth-match-regexp " depth:\\([0-9]*\\).*match:\\([01]\\) ")
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(defvar notmuch-show-filename-regexp "filename:\\(.*\\)$")
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(defvar notmuch-show-contentype-regexp "Content-type: \\(.*\\)")
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(defvar notmuch-show-tags-regexp "(\\([^)]*\\))$")
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(defvar notmuch-show-parent-buffer nil)
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(defvar notmuch-show-body-read-visible nil)
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(defvar notmuch-show-citations-visible nil)
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(defvar notmuch-show-signatures-visible nil)
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(defvar notmuch-show-headers-visible nil)
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(defun notmuch-show-next-line ()
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"Like builtin `next-line' but ensuring we end on a visible character.
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By advancing forward until reaching a visible character.
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Unlike builtin `next-line' this version accepts no arguments."
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(interactive)
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(set 'this-command 'next-line)
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(call-interactively 'next-line)
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(while (point-invisible-p)
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(forward-char)))
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(defun notmuch-show-previous-line ()
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"Like builtin `previous-line' but ensuring we end on a visible character.
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By advancing forward until reaching a visible character.
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Unlike builtin `previous-line' this version accepts no arguments."
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(interactive)
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(set 'this-command 'previous-line)
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(call-interactively 'previous-line)
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(while (point-invisible-p)
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(forward-char)))
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(defun notmuch-show-get-message-id ()
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(save-excursion
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(beginning-of-line)
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(if (not (looking-at notmuch-show-message-begin-regexp))
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(re-search-backward notmuch-show-message-begin-regexp))
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(re-search-forward notmuch-show-id-regexp)
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(buffer-substring-no-properties (match-beginning 1) (match-end 1))))
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(defun notmuch-show-get-filename ()
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(save-excursion
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(beginning-of-line)
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(if (not (looking-at notmuch-show-message-begin-regexp))
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(re-search-backward notmuch-show-message-begin-regexp))
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(re-search-forward notmuch-show-filename-regexp)
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(buffer-substring-no-properties (match-beginning 1) (match-end 1))))
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(defun notmuch-show-set-tags (tags)
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(save-excursion
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(beginning-of-line)
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(if (not (looking-at notmuch-show-message-begin-regexp))
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(re-search-backward notmuch-show-message-begin-regexp))
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(re-search-forward notmuch-show-tags-regexp)
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(let ((inhibit-read-only t)
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(beg (match-beginning 1))
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(end (match-end 1)))
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(delete-region beg end)
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(goto-char beg)
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(insert (mapconcat 'identity tags " ")))))
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(defun notmuch-show-get-tags ()
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(save-excursion
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(beginning-of-line)
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(if (not (looking-at notmuch-show-message-begin-regexp))
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(re-search-backward notmuch-show-message-begin-regexp))
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(re-search-forward notmuch-show-tags-regexp)
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(split-string (buffer-substring (match-beginning 1) (match-end 1)))))
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(defun notmuch-show-get-bcc ()
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"Return BCC address(es) of current message"
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(notmuch-show-get-header-field 'bcc))
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(defun notmuch-show-get-cc ()
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"Return CC address(es) of current message"
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(notmuch-show-get-header-field 'cc))
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(defun notmuch-show-get-date ()
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"Return Date of current message"
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(notmuch-show-get-header-field 'date))
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(defun notmuch-show-get-from ()
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"Return From address of current message"
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(notmuch-show-get-header-field 'from))
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(defun notmuch-show-get-subject ()
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"Return Subject of current message"
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(notmuch-show-get-header-field 'subject))
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(defun notmuch-show-get-to ()
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"Return To address(es) of current message"
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(notmuch-show-get-header-field 'to))
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(defun notmuch-show-get-header-field (name)
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"Retrieve the header field NAME from the current message.
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NAME should be a symbol, in lower case, as returned by
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mail-header-extract-no-properties"
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(let* ((result (assoc name (notmuch-show-get-header)))
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(val (and result (cdr result))))
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val))
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(defun notmuch-show-get-header ()
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"Retrieve and parse the header from the current message. Returns an alist with of (header . value)
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where header is a symbol and value is a string. The summary from notmuch-show is returned as the
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pseudoheader summary"
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(require 'mailheader)
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(save-excursion
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(beginning-of-line)
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(if (not (looking-at notmuch-show-message-begin-regexp))
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(re-search-backward notmuch-show-message-begin-regexp))
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(re-search-forward (concat notmuch-show-header-begin-regexp "\n[[:space:]]*\\(.*\\)\n"))
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(let* ((summary (buffer-substring-no-properties (match-beginning 1) (match-end 1)))
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(beg (point)))
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(re-search-forward notmuch-show-header-end-regexp)
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(let ((text (buffer-substring beg (match-beginning 0))))
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(with-temp-buffer
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(insert text)
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(goto-char (point-min))
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(while (looking-at "\\([[:space:]]*\\)[A-Za-z][-A-Za-z0-9]*:")
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(delete-region (match-beginning 1) (match-end 1))
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(forward-line)
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)
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(goto-char (point-min))
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(cons (cons 'summary summary) (mail-header-extract-no-properties)))))))
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(defun notmuch-show-add-tag (&rest toadd)
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"Add a tag to the current message."
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(interactive
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(list (notmuch-select-tag-with-completion "Tag to add: ")))
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(apply 'notmuch-call-notmuch-process
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(append (cons "tag"
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(mapcar (lambda (s) (concat "+" s)) toadd))
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(cons (notmuch-show-get-message-id) nil)))
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(notmuch-show-set-tags (sort (union toadd (notmuch-show-get-tags) :test 'string=) 'string<)))
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(defun notmuch-show-remove-tag (&rest toremove)
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"Remove a tag from the current message."
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(interactive
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(list (notmuch-select-tag-with-completion "Tag to remove: " (notmuch-show-get-message-id))))
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(let ((tags (notmuch-show-get-tags)))
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(if (intersection tags toremove :test 'string=)
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(progn
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(apply 'notmuch-call-notmuch-process
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(append (cons "tag"
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(mapcar (lambda (s) (concat "-" s)) toremove))
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(cons (notmuch-show-get-message-id) nil)))
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(notmuch-show-set-tags (sort (set-difference tags toremove :test 'string=) 'string<))))))
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(defun notmuch-show-archive-thread ()
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"Archive each message in thread, then show next thread from search.
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Archive each message currently shown by removing the \"inbox\"
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tag from each. Then kill this buffer and show the next thread
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from the search from which this thread was originally shown.
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Note: This command is safe from any race condition of new messages
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being delivered to the same thread. It does not archive the
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entire thread, but only the messages shown in the current
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buffer."
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(interactive)
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(save-excursion
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(goto-char (point-min))
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(while (not (eobp))
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(notmuch-show-remove-tag "inbox")
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(if (not (eobp))
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(forward-char))
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(if (not (re-search-forward notmuch-show-message-begin-regexp nil t))
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(goto-char (point-max)))))
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(let ((parent-buffer notmuch-show-parent-buffer))
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(kill-this-buffer)
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(if parent-buffer
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(progn
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(switch-to-buffer parent-buffer)
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(forward-line)
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(notmuch-search-show-thread)))))
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(defun notmuch-show-archive-thread-then-exit ()
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"Archive each message in thread, then exit back to search results."
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(interactive)
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(notmuch-show-archive-thread)
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(kill-this-buffer))
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(defun notmuch-show-view-raw-message ()
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"View the raw email of the current message."
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(interactive)
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(view-file (notmuch-show-get-filename)))
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(defmacro with-current-notmuch-show-message (&rest body)
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"Evaluate body with current buffer set to the text of current message"
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`(save-excursion
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(let ((filename (notmuch-show-get-filename)))
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(let ((buf (generate-new-buffer (concat "*notmuch-msg-" filename "*"))))
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(with-current-buffer buf
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(insert-file-contents filename nil nil nil t)
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,@body)
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(kill-buffer buf)))))
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(defun notmuch-show-view-all-mime-parts ()
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"Use external viewers to view all attachments from the current message."
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(interactive)
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(with-current-notmuch-show-message
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; We ovverride the mm-inline-media-tests to indicate which message
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; parts are already sufficiently handled by the original
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; presentation of the message in notmuch-show mode. These parts
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; will be inserted directly into the temporary buffer of
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; with-current-notmuch-show-message and silently discarded.
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;
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; Any MIME part not explicitly mentioned here will be handled by an
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; external viewer as configured in the various mailcap files.
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(let ((mm-inline-media-tests '(
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("text/.*" ignore identity)
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("application/pgp-signature" ignore identity)
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("multipart/alternative" ignore identity)
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("multipart/mixed" ignore identity)
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("multipart/related" ignore identity)
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)))
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(mm-display-parts (mm-dissect-buffer)))))
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(defun notmuch-show-save-attachments ()
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"Save all attachments from the current message."
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(interactive)
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(with-current-notmuch-show-message
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(let ((mm-handle (mm-dissect-buffer)))
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(notmuch-save-attachments
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mm-handle (> (notmuch-count-attachments mm-handle) 1))))
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(message "Done"))
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(defun notmuch-show-reply ()
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"Begin composing a reply to the current message in a new buffer."
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(interactive)
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(let ((message-id (notmuch-show-get-message-id)))
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(notmuch-reply message-id)))
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(defun notmuch-show-forward-current ()
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"Forward the current message."
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(interactive)
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(with-current-notmuch-show-message
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(message-forward)))
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(defun notmuch-show-pipe-message (command)
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"Pipe the contents of the current message to the given command.
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The given command will be executed with the raw contents of the
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current email message as stdin. Anything printed by the command
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to stdout or stderr will appear in the *Messages* buffer."
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(interactive "sPipe message to command: ")
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(apply 'start-process-shell-command "notmuch-pipe-command" "*notmuch-pipe*"
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(list command " < " (shell-quote-argument (notmuch-show-get-filename)))))
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(defun notmuch-show-move-to-current-message-summary-line ()
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"Move to the beginning of the one-line summary of the current message.
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This gives us a stable place to move to and work from since the
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summary line is always visible. This is important since moving to
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an invisible location is unreliable, (the main command loop moves
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point either forward or backward to the next visible character
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when a command ends with point on an invisible character).
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Emits an error if point is not within a valid message, (that is
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no pattern of `notmuch-show-message-begin-regexp' could be found
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by searching backward)."
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(beginning-of-line)
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(if (not (looking-at notmuch-show-message-begin-regexp))
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(if (re-search-backward notmuch-show-message-begin-regexp nil t)
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(forward-line 2)
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(error "Not within a valid message."))
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(forward-line 2)))
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(defun notmuch-show-last-message-p ()
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"Predicate testing whether point is within the last message."
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(save-window-excursion
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(save-excursion
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(notmuch-show-move-to-current-message-summary-line)
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(not (re-search-forward notmuch-show-message-begin-regexp nil t)))))
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(defun notmuch-show-message-unread-p ()
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"Predicate testing whether current message is unread."
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(member "unread" (notmuch-show-get-tags)))
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(defun notmuch-show-message-open-p ()
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"Predicate testing whether current message is open (body is visible)."
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(let ((btn (previous-button (point) t)))
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(while (not (button-has-type-p btn 'notmuch-button-body-toggle-type))
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(setq btn (previous-button (button-start btn))))
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(not (invisible-p (button-get btn 'invisibility-spec)))))
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|
(defun notmuch-show-next-message-without-marking-read ()
|
|
"Advance to the beginning of the next message in the buffer.
|
|
|
|
Moves to the last visible character of the current message if
|
|
already on the last message in the buffer.
|
|
|
|
Returns nil if already on the last message in the buffer."
|
|
(notmuch-show-move-to-current-message-summary-line)
|
|
(if (re-search-forward notmuch-show-message-begin-regexp nil t)
|
|
(progn
|
|
(notmuch-show-move-to-current-message-summary-line)
|
|
(recenter 0)
|
|
t)
|
|
(goto-char (- (point-max) 1))
|
|
(while (point-invisible-p)
|
|
(backward-char))
|
|
(recenter 0)
|
|
nil))
|
|
|
|
(defun notmuch-show-next-message ()
|
|
"Advance to the next message (whether open or closed)
|
|
and remove the unread tag from that message.
|
|
|
|
Moves to the last visible character of the current message if
|
|
already on the last message in the buffer.
|
|
|
|
Returns nil if already on the last message in the buffer."
|
|
(interactive)
|
|
(notmuch-show-next-message-without-marking-read)
|
|
(notmuch-show-mark-read))
|
|
|
|
(defun notmuch-show-find-next-message ()
|
|
"Returns the position of the next message in the buffer.
|
|
|
|
Or the position of the last visible character of the current
|
|
message if already within the last message in the buffer."
|
|
; save-excursion doesn't save our window position
|
|
; save-window-excursion doesn't save point
|
|
; Looks like we have to use both.
|
|
(save-excursion
|
|
(save-window-excursion
|
|
(notmuch-show-next-message-without-marking-read)
|
|
(point))))
|
|
|
|
(defun notmuch-show-next-unread-message ()
|
|
"Advance to the next unread message.
|
|
|
|
Moves to the last visible character of the current message if
|
|
there are no more unread messages past the current point."
|
|
(notmuch-show-next-message-without-marking-read)
|
|
(while (and (not (notmuch-show-last-message-p))
|
|
(not (notmuch-show-message-unread-p)))
|
|
(notmuch-show-next-message-without-marking-read))
|
|
(if (not (notmuch-show-message-unread-p))
|
|
(notmuch-show-next-message-without-marking-read))
|
|
(notmuch-show-mark-read))
|
|
|
|
(defun notmuch-show-next-open-message ()
|
|
"Advance to the next open message (that is, body is visible).
|
|
|
|
Moves to the last visible character of the final message in the buffer
|
|
if there are no more open messages."
|
|
(interactive)
|
|
(while (and (notmuch-show-next-message-without-marking-read)
|
|
(not (notmuch-show-message-open-p))))
|
|
(notmuch-show-mark-read))
|
|
|
|
(defun notmuch-show-previous-message-without-marking-read ()
|
|
"Backup to the beginning of the previous message in the buffer.
|
|
|
|
If within a message rather than at the beginning of it, then
|
|
simply move to the beginning of the current message.
|
|
|
|
Returns nil if already on the first message in the buffer."
|
|
(let ((start (point)))
|
|
(notmuch-show-move-to-current-message-summary-line)
|
|
(if (not (< (point) start))
|
|
; Go backward twice to skip the current message's marker
|
|
(progn
|
|
(re-search-backward notmuch-show-message-begin-regexp nil t)
|
|
(re-search-backward notmuch-show-message-begin-regexp nil t)
|
|
(notmuch-show-move-to-current-message-summary-line)
|
|
(recenter 0)
|
|
(if (= (point) start)
|
|
nil
|
|
t))
|
|
(recenter 0)
|
|
nil)))
|
|
|
|
(defun notmuch-show-previous-message ()
|
|
"Backup to the previous message (whether open or closed)
|
|
and remove the unread tag from that message.
|
|
|
|
If within a message rather than at the beginning of it, then
|
|
simply move to the beginning of the current message."
|
|
(interactive)
|
|
(notmuch-show-previous-message-without-marking-read)
|
|
(notmuch-show-mark-read))
|
|
|
|
(defun notmuch-show-find-previous-message ()
|
|
"Returns the position of the previous message in the buffer.
|
|
|
|
Or the position of the beginning of the current message if point
|
|
is originally within the message rather than at the beginning of
|
|
it."
|
|
; save-excursion doesn't save our window position
|
|
; save-window-excursion doesn't save point
|
|
; Looks like we have to use both.
|
|
(save-excursion
|
|
(save-window-excursion
|
|
(notmuch-show-previous-message-without-marking-read)
|
|
(point))))
|
|
|
|
(defun notmuch-show-previous-open-message ()
|
|
"Backup to previous open message (that is, body is visible).
|
|
|
|
Moves to the first message in the buffer if there are no previous
|
|
open messages."
|
|
(interactive)
|
|
(while (and (notmuch-show-previous-message-without-marking-read)
|
|
(not (notmuch-show-message-open-p))))
|
|
(notmuch-show-mark-read))
|
|
|
|
(defun notmuch-show-rewind ()
|
|
"Backup through the thread, (reverse scrolling compared to \\[notmuch-show-advance-and-archive]).
|
|
|
|
Specifically, if the beginning of the previous email is fewer
|
|
than `window-height' lines from the current point, move to it
|
|
just like `notmuch-show-previous-message'.
|
|
|
|
Otherwise, just scroll down a screenful of the current message.
|
|
|
|
This command does not modify any message tags, (it does not undo
|
|
any effects from previous calls to
|
|
`notmuch-show-advance-and-archive'."
|
|
(interactive)
|
|
(let ((previous (notmuch-show-find-previous-message)))
|
|
(if (> (count-lines previous (point)) (- (window-height) next-screen-context-lines))
|
|
(progn
|
|
(condition-case nil
|
|
(scroll-down nil)
|
|
((beginning-of-buffer) nil))
|
|
(goto-char (window-start))
|
|
; Because count-lines counts invivisible lines, we may have
|
|
; scrolled to far. If so., notice this and fix it up.
|
|
(if (< (point) previous)
|
|
(progn
|
|
(goto-char previous)
|
|
(recenter 0))))
|
|
(notmuch-show-previous-message))))
|
|
|
|
(defun notmuch-show-advance-and-archive ()
|
|
"Advance through thread and archive.
|
|
|
|
This command is intended to be one of the simplest ways to
|
|
process a thread of email. It does the following:
|
|
|
|
If the current message in the thread is not yet fully visible,
|
|
scroll by a near screenful to read more of the message.
|
|
|
|
Otherwise, (the end of the current message is already within the
|
|
current window), advance to the next open message.
|
|
|
|
Finally, if there is no further message to advance to, and this
|
|
last message is already read, then archive the entire current
|
|
thread, (remove the \"inbox\" tag from each message). Also kill
|
|
this buffer, and display the next thread from the search from
|
|
which this thread was originally shown."
|
|
(interactive)
|
|
(let ((next (notmuch-show-find-next-message))
|
|
(unread (notmuch-show-message-unread-p)))
|
|
(if (> next (window-end))
|
|
(scroll-up nil)
|
|
(let ((last (notmuch-show-last-message-p)))
|
|
(notmuch-show-next-open-message)
|
|
(if last
|
|
(notmuch-show-archive-thread))))))
|
|
|
|
(defun notmuch-show-next-button ()
|
|
"Advance point to the next button in the buffer."
|
|
(interactive)
|
|
(forward-button 1))
|
|
|
|
(defun notmuch-show-previous-button ()
|
|
"Move point back to the previous button in the buffer."
|
|
(interactive)
|
|
(backward-button 1))
|
|
|
|
(defun notmuch-show-toggle-current-body ()
|
|
"Toggle the display of the current message body."
|
|
(interactive)
|
|
(save-excursion
|
|
(notmuch-show-move-to-current-message-summary-line)
|
|
(unless (button-at (point))
|
|
(notmuch-show-next-button))
|
|
(push-button))
|
|
)
|
|
|
|
(defun notmuch-show-toggle-current-header ()
|
|
"Toggle the display of the current message header."
|
|
(interactive)
|
|
(save-excursion
|
|
(notmuch-show-move-to-current-message-summary-line)
|
|
(forward-line)
|
|
(unless (button-at (point))
|
|
(notmuch-show-next-button))
|
|
(push-button))
|
|
)
|
|
|
|
(defun notmuch-show-citation-regexp (depth)
|
|
"Build a regexp for matching citations at a given DEPTH (indent)"
|
|
(let ((line-regexp (format "[[:space:]]\\{%d\\}>.*\n" depth)))
|
|
(concat "\\(?:^" line-regexp
|
|
"\\(?:[[:space:]]*\n" line-regexp
|
|
"\\)?\\)+")))
|
|
|
|
(defun notmuch-show-region-to-button (beg end type prefix button-text)
|
|
"Auxilary function to do the actual making of overlays and buttons
|
|
|
|
BEG and END are buffer locations. TYPE should a string, either
|
|
\"citation\" or \"signature\". PREFIX is some arbitrary text to
|
|
insert before the button, probably for indentation. BUTTON-TEXT
|
|
is what to put on the button."
|
|
|
|
;; This uses some slightly tricky conversions between strings and
|
|
;; symbols because of the way the button code works. Note that
|
|
;; replacing intern-soft with make-symbol will cause this to fail,
|
|
;; since the newly created symbol has no plist.
|
|
|
|
(let ((overlay (make-overlay beg end))
|
|
(invis-spec (make-symbol (concat "notmuch-" type "-region")))
|
|
(button-type (intern-soft (concat "notmuch-button-"
|
|
type "-toggle-type"))))
|
|
(add-to-invisibility-spec invis-spec)
|
|
(overlay-put overlay 'invisible invis-spec)
|
|
(goto-char (1+ end))
|
|
(save-excursion
|
|
(goto-char (1- beg))
|
|
(insert prefix)
|
|
(insert-button button-text
|
|
'invisibility-spec invis-spec
|
|
:type button-type)
|
|
)))
|
|
|
|
(defun notmuch-show-markup-citations-region (beg end depth)
|
|
"Markup citations, and up to one signature in the given region"
|
|
;; it would be nice if the untabify was not required, but
|
|
;; that would require notmuch to indent with spaces.
|
|
(untabify beg end)
|
|
(let ((citation-regexp (notmuch-show-citation-regexp depth))
|
|
(signature-regexp (concat (format "^[[:space:]]\\{%d\\}" depth)
|
|
notmuch-show-signature-regexp))
|
|
(indent (concat "\n" (make-string depth ? ))))
|
|
(goto-char beg)
|
|
(beginning-of-line)
|
|
(while (and (< (point) end)
|
|
(re-search-forward citation-regexp end t))
|
|
(let* ((cite-start (match-beginning 0))
|
|
(cite-end (match-end 0))
|
|
(cite-lines (count-lines cite-start cite-end)))
|
|
(when (> cite-lines (1+ notmuch-show-citation-lines-prefix))
|
|
(goto-char cite-start)
|
|
(forward-line notmuch-show-citation-lines-prefix)
|
|
(notmuch-show-region-to-button
|
|
(point) cite-end
|
|
"citation"
|
|
indent
|
|
(format notmuch-show-citation-button-format
|
|
(- cite-lines notmuch-show-citation-lines-prefix))
|
|
))))
|
|
(if (and (< (point) end)
|
|
(re-search-forward signature-regexp end t))
|
|
(let* ((sig-start (match-beginning 0))
|
|
(sig-end (match-end 0))
|
|
(sig-lines (1- (count-lines sig-start end))))
|
|
(if (<= sig-lines notmuch-show-signature-lines-max)
|
|
(notmuch-show-region-to-button
|
|
sig-start
|
|
end
|
|
"signature"
|
|
indent
|
|
(format notmuch-show-signature-button-format sig-lines)
|
|
))))))
|
|
|
|
(defun notmuch-show-markup-part (beg end depth)
|
|
(if (re-search-forward notmuch-show-part-begin-regexp nil t)
|
|
(progn
|
|
(let (mime-message mime-type)
|
|
(save-excursion
|
|
(re-search-forward notmuch-show-contentype-regexp end t)
|
|
(setq mime-type (car (split-string (buffer-substring
|
|
(match-beginning 1) (match-end 1))))))
|
|
|
|
(if (equal mime-type "text/html")
|
|
(let ((filename (notmuch-show-get-filename)))
|
|
(with-temp-buffer
|
|
(insert-file-contents filename nil nil nil t)
|
|
(setq mime-message (mm-dissect-buffer)))))
|
|
(forward-line)
|
|
(let ((beg (point-marker)))
|
|
(re-search-forward notmuch-show-part-end-regexp)
|
|
(let ((end (copy-marker (match-beginning 0))))
|
|
(goto-char end)
|
|
(if (not (bolp))
|
|
(insert "\n"))
|
|
(indent-rigidly beg end depth)
|
|
(if (not (eq mime-message nil))
|
|
(save-excursion
|
|
(goto-char beg)
|
|
(forward-line -1)
|
|
(let ((handle-type (mm-handle-type mime-message))
|
|
mime-type)
|
|
(if (sequencep (car handle-type))
|
|
(setq mime-type (car handle-type))
|
|
(setq mime-type (car (car (cdr handle-type))))
|
|
)
|
|
(if (equal mime-type "text/html")
|
|
(mm-display-part mime-message))))
|
|
)
|
|
(notmuch-show-markup-citations-region beg end depth)
|
|
; Advance to the next part (if any) (so the outer loop can
|
|
; determine whether we've left the current message.
|
|
(if (re-search-forward notmuch-show-part-begin-regexp nil t)
|
|
(beginning-of-line)))))
|
|
(goto-char end))
|
|
(goto-char end)))
|
|
|
|
(defun notmuch-show-markup-parts-region (beg end depth)
|
|
(save-excursion
|
|
(goto-char beg)
|
|
(while (< (point) end)
|
|
(notmuch-show-markup-part beg end depth))))
|
|
|
|
(defun notmuch-show-markup-body (depth match btn)
|
|
"Markup a message body, (indenting, buttonizing citations,
|
|
etc.), and hiding the body itself if the message does not match
|
|
the current search.
|
|
|
|
DEPTH specifies the depth at which this message appears in the
|
|
tree of the current thread, (the top-level messages have depth 0
|
|
and each reply increases depth by 1). MATCH indicates whether
|
|
this message is regarded as matching the current search. BTN is
|
|
the button which is used to toggle the visibility of this
|
|
message.
|
|
|
|
When this function is called, point must be within the message, but
|
|
before the delimiter marking the beginning of the body."
|
|
(re-search-forward notmuch-show-body-begin-regexp)
|
|
(forward-line)
|
|
(let ((beg (point-marker)))
|
|
(re-search-forward notmuch-show-body-end-regexp)
|
|
(let ((end (copy-marker (match-beginning 0))))
|
|
(notmuch-show-markup-parts-region beg end depth)
|
|
(let ((invis-spec (make-symbol "notmuch-show-body-read")))
|
|
(overlay-put (make-overlay beg end)
|
|
'invisible invis-spec)
|
|
(button-put btn 'invisibility-spec invis-spec)
|
|
(if (not match)
|
|
(add-to-invisibility-spec invis-spec)))
|
|
(set-marker beg nil)
|
|
(set-marker end nil)
|
|
)))
|
|
|
|
(defun notmuch-show-markup-header (message-begin depth)
|
|
"Buttonize and decorate faces in a message header.
|
|
|
|
MESSAGE-BEGIN is the position of the absolute first character in
|
|
the message (including all delimiters that will end up being
|
|
invisible etc.). This is to allow a button to reliably extend to
|
|
the beginning of the message even if point is positioned at an
|
|
invisible character (such as the beginning of the buffer).
|
|
|
|
DEPTH specifies the depth at which this message appears in the
|
|
tree of the current thread, (the top-level messages have depth 0
|
|
and each reply increases depth by 1)."
|
|
(re-search-forward notmuch-show-header-begin-regexp)
|
|
(forward-line)
|
|
(let ((beg (point-marker))
|
|
(summary-end (copy-marker (line-beginning-position 2)))
|
|
(subject-end (copy-marker (line-end-position 2)))
|
|
(invis-spec (make-symbol "notmuch-show-header"))
|
|
(btn nil))
|
|
(re-search-forward notmuch-show-header-end-regexp)
|
|
(beginning-of-line)
|
|
(let ((end (point-marker)))
|
|
(indent-rigidly beg end depth)
|
|
(goto-char beg)
|
|
(setq btn (make-button message-begin summary-end :type 'notmuch-button-body-toggle-type))
|
|
(forward-line)
|
|
(add-to-invisibility-spec invis-spec)
|
|
(overlay-put (make-overlay subject-end end)
|
|
'invisible invis-spec)
|
|
(make-button (line-beginning-position) subject-end
|
|
'invisibility-spec invis-spec
|
|
:type 'notmuch-button-headers-toggle-type)
|
|
(while (looking-at "[[:space:]]*[A-Za-z][-A-Za-z0-9]*:")
|
|
(beginning-of-line)
|
|
(notmuch-fontify-headers)
|
|
(forward-line)
|
|
)
|
|
(goto-char end)
|
|
(insert "\n")
|
|
(set-marker beg nil)
|
|
(set-marker summary-end nil)
|
|
(set-marker subject-end nil)
|
|
(set-marker end nil)
|
|
)
|
|
btn))
|
|
|
|
(defun notmuch-show-markup-message ()
|
|
(if (re-search-forward notmuch-show-message-begin-regexp nil t)
|
|
(let ((message-begin (match-beginning 0)))
|
|
(re-search-forward notmuch-show-depth-match-regexp)
|
|
(let ((depth (string-to-number (buffer-substring (match-beginning 1) (match-end 1))))
|
|
(match (string= "1" (buffer-substring (match-beginning 2) (match-end 2))))
|
|
(btn nil))
|
|
(setq btn (notmuch-show-markup-header message-begin depth))
|
|
(notmuch-show-markup-body depth match btn)))
|
|
(goto-char (point-max))))
|
|
|
|
(defun notmuch-show-hide-markers ()
|
|
(save-excursion
|
|
(goto-char (point-min))
|
|
(while (not (eobp))
|
|
(if (re-search-forward notmuch-show-marker-regexp nil t)
|
|
(progn
|
|
(overlay-put (make-overlay (match-beginning 0) (+ (match-end 0) 1))
|
|
'invisible 'notmuch-show-marker))
|
|
(goto-char (point-max))))))
|
|
|
|
(defun notmuch-show-markup-messages ()
|
|
(save-excursion
|
|
(goto-char (point-min))
|
|
(while (not (eobp))
|
|
(notmuch-show-markup-message)))
|
|
(notmuch-show-hide-markers))
|
|
|
|
;;;###autoload
|
|
(defun notmuch-show-mode ()
|
|
"Major mode for viewing a thread with notmuch.
|
|
|
|
This buffer contains the results of the \"notmuch show\" command
|
|
for displaying a single thread of email from your email archives.
|
|
|
|
By default, various components of email messages, (citations,
|
|
signatures, already-read messages), are hidden. You can make
|
|
these parts visible by clicking with the mouse button or by
|
|
pressing RET after positioning the cursor on a hidden part, (for
|
|
which \\[notmuch-show-next-button] and \\[notmuch-show-previous-button] are helpful).
|
|
|
|
Reading the thread sequentially is well-supported by pressing
|
|
\\[notmuch-show-advance-and-archive]. This will
|
|
scroll the current message (if necessary), advance to the next
|
|
message, or advance to the next thread (if already on the last
|
|
message of a thread).
|
|
|
|
Other commands are available to read or manipulate the thread more
|
|
selectively, (such as '\\[notmuch-show-next-message]' and '\\[notmuch-show-previous-message]' to advance to messages without
|
|
removing any tags, and '\\[notmuch-show-archive-thread]' to archive an entire thread without
|
|
scrolling through with \\[notmuch-show-advance-and-archive]).
|
|
|
|
You can add or remove arbitary tags from the current message with
|
|
'\\[notmuch-show-add-tag]' or '\\[notmuch-show-remove-tag]'.
|
|
|
|
All currently available key bindings:
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\\{notmuch-show-mode-map}"
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(interactive)
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(kill-all-local-variables)
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(add-to-invisibility-spec 'notmuch-show-marker)
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(use-local-map notmuch-show-mode-map)
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(setq major-mode 'notmuch-show-mode
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mode-name "notmuch-show")
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(setq buffer-read-only t))
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(defcustom notmuch-show-hook nil
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"List of functions to call when notmuch displays a message."
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:type 'hook
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:options '(goto-address)
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:group 'notmuch)
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(defun notmuch-show-do-stash (text)
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(kill-new text)
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(message (concat "Saved: " text)))
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(defun notmuch-show-stash-cc ()
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"Copy CC field of current message to kill-ring."
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(interactive)
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(notmuch-show-do-stash (notmuch-show-get-cc)))
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(defun notmuch-show-stash-date ()
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"Copy date of current message to kill-ring."
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(interactive)
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(notmuch-show-do-stash (notmuch-show-get-date)))
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(defun notmuch-show-stash-filename ()
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"Copy filename of current message to kill-ring."
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(interactive)
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(notmuch-show-do-stash (notmuch-show-get-filename)))
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(defun notmuch-show-stash-from ()
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"Copy From address of current message to kill-ring."
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(interactive)
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(notmuch-show-do-stash (notmuch-show-get-from)))
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(defun notmuch-show-stash-message-id ()
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"Copy message ID of current message to kill-ring."
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(interactive)
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(notmuch-show-do-stash (notmuch-show-get-message-id)))
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(defun notmuch-show-stash-subject ()
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"Copy Subject field of current message to kill-ring."
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(interactive)
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(notmuch-show-do-stash (notmuch-show-get-subject)))
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(defun notmuch-show-stash-tags ()
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"Copy tags of current message to kill-ring as a comma separated list."
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(interactive)
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(notmuch-show-do-stash (mapconcat 'identity (notmuch-show-get-tags) ",")))
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(defun notmuch-show-stash-to ()
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"Copy To address of current message to kill-ring."
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(interactive)
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(notmuch-show-do-stash (notmuch-show-get-to)))
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; Make show mode a bit prettier, highlighting URLs and using word wrap
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(defun notmuch-show-mark-read ()
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(notmuch-show-remove-tag "unread"))
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(defun notmuch-show-pretty-hook ()
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(goto-address-mode 1)
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(visual-line-mode))
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(add-hook 'notmuch-show-hook 'notmuch-show-mark-read)
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(add-hook 'notmuch-show-hook 'notmuch-show-pretty-hook)
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(add-hook 'notmuch-search-hook
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(lambda()
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(hl-line-mode 1) ))
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(defun notmuch-show (thread-id &optional parent-buffer query-context)
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"Run \"notmuch show\" with the given thread ID and display results.
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The optional PARENT-BUFFER is the notmuch-search buffer from
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which this notmuch-show command was executed, (so that the next
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thread from that buffer can be show when done with this one).
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The optional QUERY-CONTEXT is a notmuch search term. Only messages from the thread
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matching this search term are shown if non-nil. "
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(interactive "sNotmuch show: ")
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(let ((buffer (get-buffer-create (concat "*notmuch-show-" thread-id "*"))))
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(switch-to-buffer buffer)
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(notmuch-show-mode)
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(set (make-local-variable 'notmuch-show-parent-buffer) parent-buffer)
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(let ((proc (get-buffer-process (current-buffer)))
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(inhibit-read-only t))
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(if proc
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(error "notmuch search process already running for query `%s'" thread-id)
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)
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(erase-buffer)
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(goto-char (point-min))
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(save-excursion
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(let* ((basic-args (list notmuch-command nil t nil "show" "--entire-thread" thread-id))
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(args (if query-context (append basic-args (list "and (" query-context ")")) basic-args)))
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(apply 'call-process args)
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(when (and (eq (buffer-size) 0) query-context)
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(apply 'call-process basic-args)))
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(notmuch-show-markup-messages)
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)
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(run-hooks 'notmuch-show-hook)
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; Move straight to the first open message
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(if (not (notmuch-show-message-open-p))
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(notmuch-show-next-open-message))
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)))
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(provide 'notmuch-show)
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