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;;; mu4e-speedbar --- Speedbar support for mu4e -*- lexical-binding: t -*-
;; Copyright (C) 2012-2021 Antono Vasiljev, Dirk-Jan C. Binnema
;; Author: Antono Vasiljev <self@antono.info>
;; Version: 0.1
;; Keywords: file, tags, tools
;; This file is not part of GNU Emacs.
;; This program 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, or (at your option)
;; any later version.
;; This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;
;; Speedbar provides a frame in which files, and locations in files
;; are displayed. These functions provide mu4e specific support,
;; showing maildir list in the side-bar.
;;
;; This file requires speedbar.
;;; Code:
(require 'speedbar)
(require 'mu4e-vars)
(require 'mu4e-headers)
(require 'mu4e-context)
(require 'mu4e-bookmarks)
(defvar mu4e-main-speedbar-key-map nil
"Keymap used when in mu4e display mode.")
(defvar mu4e-headers-speedbar-key-map nil
"Keymap used when in mu4e display mode.")
(defvar mu4e-view-speedbar-key-map nil
"Keymap used when in mu4e display mode.")
(defvar mu4e-main-speedbar-menu-items nil
"Additional menu-items to add to speedbar frame.")
(defvar mu4e-headers-speedbar-menu-items nil
"Additional menu-items to add to speedbar frame.")
(defvar mu4e-view-speedbar-menu-items nil
"Additional menu-items to add to speedbar frame.")
(defun mu4e-speedbar-install-variables ()
"Install those variables used by speedbar to enhance mu4e."
(add-hook 'mu4e-context-changed-hook
#'mu4e~speedbar-context-changed-hook-fn)
(dolist (keymap
'( mu4e-main-speedbar-key-map
mu4e-headers-speedbar-key-map
mu4e-view-speedbar-key-map))
(unless keymap
(setq keymap (speedbar-make-specialized-keymap))
(define-key keymap "RET" 'speedbar-edit-line)
(define-key keymap "e" 'speedbar-edit-line))))
(defun mu4e~speedbar-context-changed-hook-fn ()
(when (buffer-live-p speedbar-buffer)
(with-current-buffer speedbar-buffer
(let ((inhibit-read-only t))
(mu4e-speedbar-buttons)))))
(with-eval-after-load 'speedbar
(mu4e-speedbar-install-variables))
(defun mu4e~speedbar-render-maildir-list ()
"Insert the list of maildirs in the speedbar."
(interactive)
(when (buffer-live-p speedbar-buffer)
(with-current-buffer speedbar-buffer
(mapcar (lambda (maildir-name)
(speedbar-insert-button
(concat " " maildir-name)
'mu4e-highlight-face
'highlight
'mu4e~speedbar-maildir
maildir-name))
(mu4e-get-maildirs)))))
(defun mu4e~speedbar-maildir (&optional _text token _ident)
"Jump to maildir TOKEN. TEXT and INDENT are not used."
(dframe-with-attached-buffer
(mu4e-search (concat "\"maildir:" token "\"") current-prefix-arg)))
(defun mu4e~speedbar-render-bookmark-list ()
"Insert the list of bookmarks in the speedbar"
(interactive)
(mapcar (lambda (bookmark)
(unless (plist-get bookmark :hide)
(speedbar-insert-button
(concat " " (plist-get bookmark :name))
'mu4e-highlight-face
'highlight
'mu4e~speedbar-bookmark
(plist-get bookmark :query))))
(mu4e-bookmarks)))
(defun mu4e~speedbar-bookmark (&optional _text token _ident)
"Run bookmarked query TOKEN. TEXT and INDENT are not used."
(dframe-with-attached-buffer
(mu4e-search token current-prefix-arg)))
;;;###autoload
(defun mu4e-speedbar-buttons (&optional _buffer)
"Create buttons for any mu4e BUFFER."
(interactive)
(erase-buffer)
(insert (propertize "* mu4e\n\n" 'face 'mu4e-title-face))
(insert (propertize " Bookmarks\n" 'face 'mu4e-title-face))
(mu4e~speedbar-render-bookmark-list)
(insert "\n")
(insert (propertize " Maildirs\n" 'face 'mu4e-title-face))
(mu4e~speedbar-render-maildir-list))
(defun mu4e-main-speedbar-buttons (buffer) (mu4e-speedbar-buttons buffer))
(defun mu4e-headers-speedbar-buttons (buffer) (mu4e-speedbar-buttons buffer))
(defun mu4e-view-speedbar-buttons (buffer) (mu4e-speedbar-buttons buffer))
;;; _
(provide 'mu4e-speedbar)
;;; mu4e-speedbar.el ends here
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