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9ca1f945d9
We need to load `cl-lib' at run-time because we use more from it than
just macros. Never-the-less many, but not all libraries required it
only at compile-time, which we got away with because at least some
libraries already required it at run-time as well.
We use `cl-lib' and (currently to a lesser extend) `pcase' throughout
the code-base, which means that we should require these features in
most libraries.
In the past we tried to only require these features in just the
libraries that actually need them, without fully succeeding. We did
not succeed in doing so because that means we would have to check
every time that we use a function from these features whether they
are already being required in the current library.
An alternative would be to add the `require' forms at the top of every
library but that is a bit annoying too.
In order to make sure that these features are loaded when needed but
also to keep the noise down we only require them in "notmuch-lib.el",
which most other libraries require, and in most of the few libraries
that do not do so, namely "notmuch-draft.el", "notmuch-message.el" and
"notmuch-parser.el". ("coolj.el", "make-deps.el", various generated
libraries, and "notmuch-compat.el" are left touched.)
105 lines
3.7 KiB
EmacsLisp
105 lines
3.7 KiB
EmacsLisp
;;; notmuch-company.el --- Mail address completion for notmuch via company-mode -*- lexical-binding: t -*-
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;;
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;; Copyright © Trevor Jim
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;; Copyright © Michal Sojka
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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 <https://www.gnu.org/licenses/>.
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;;
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;; Authors: Trevor Jim <tjim@mac.com>
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;; Michal Sojka <sojkam1@fel.cvut.cz>
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;; Keywords: mail, completion
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;;; Commentary:
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;; Mail address completion for notmuch via company-mode. To enable
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;; this, install company mode from <https://company-mode.github.io/>.
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;;
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;; NB company-minimum-prefix-length defaults to 3 so you don't get
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;; completion unless you type 3 characters.
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;;; Code:
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(require 'notmuch-lib)
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(defvar-local notmuch-company-last-prefix nil)
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(declare-function company-begin-backend "company")
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(declare-function company-grab "company")
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(declare-function company-mode "company")
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(declare-function company-manual-begin "company")
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(defvar company-backends)
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(defvar company-idle-delay)
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(declare-function notmuch-address-harvest "notmuch-address")
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(declare-function notmuch-address-harvest-trigger "notmuch-address")
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(declare-function notmuch-address-matching "notmuch-address")
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(declare-function notmuch-address--harvest-ready "notmuch-address")
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(defvar notmuch-address-completion-headers-regexp)
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(defvar notmuch-address-command)
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;;;###autoload
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(defun notmuch-company-setup ()
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(company-mode)
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(setq-local company-backends '(notmuch-company))
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;; Disable automatic company completion unless an internal
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;; completion method is configured. Company completion (using
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;; internal completion) can still be accessed via standard company
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;; functions, e.g., company-complete.
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(unless (eq notmuch-address-command 'internal)
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(setq-local company-idle-delay nil)))
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;;;###autoload
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(defun notmuch-company (command &optional arg &rest _ignore)
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"`company-mode' completion back-end for `notmuch'."
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(interactive (list 'interactive))
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(require 'company)
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(let ((case-fold-search t)
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(completion-ignore-case t))
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(cl-case command
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(interactive (company-begin-backend 'notmuch-company))
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(prefix (and (derived-mode-p 'message-mode)
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(looking-back
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(concat notmuch-address-completion-headers-regexp ".*")
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(line-beginning-position))
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(setq notmuch-company-last-prefix
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(company-grab "[:,][ \t]*\\(.*\\)" 1 (point-at-bol)))))
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(candidates (cond
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((notmuch-address--harvest-ready)
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;; Update harvested addressed from time to time
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(notmuch-address-harvest-trigger)
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(notmuch-address-matching arg))
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(t
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(cons :async
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(lambda (callback)
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;; First run quick asynchronous harvest
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;; based on what the user entered so far
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(notmuch-address-harvest
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arg nil
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(lambda (_proc _event)
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(funcall callback (notmuch-address-matching arg))
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;; Then start the (potentially long-running)
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;; full asynchronous harvest if necessary
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(notmuch-address-harvest-trigger))))))))
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(match (if (string-match notmuch-company-last-prefix arg)
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(match-end 0)
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0))
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(post-completion
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(run-hook-with-args 'notmuch-address-post-completion-functions arg))
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(no-cache t))))
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(provide 'notmuch-company)
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;;; notmuch-company.el ends here
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