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383 lines
17 KiB
EmacsLisp
383 lines
17 KiB
EmacsLisp
;;; mh-tool-bar.el --- MH-E tool bar support -*- lexical-binding: t; -*-
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;; Copyright (C) 2002-2003, 2005-2024 Free Software Foundation, Inc.
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;; Author: Satyaki Das <satyaki@theforce.stanford.edu>
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;; Maintainer: Bill Wohler <wohler@newt.com>
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;; Keywords: mail
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;; See: mh-e.el
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it 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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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Code:
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(require 'mh-e)
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(require 'mh-acros)
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(require 'tool-bar)
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;;; Tool Bar Commands
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(defun mh-tool-bar-search (&optional _arg)
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"Interactively call `mh-tool-bar-search-function'.
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Optional argument ARG is not used."
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(interactive "P")
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(call-interactively mh-tool-bar-search-function))
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(defun mh-tool-bar-customize ()
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"Call `mh-customize' from the tool bar."
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(interactive)
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(mh-customize t))
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(defun mh-tool-bar-folder-help ()
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"Visit \"(mh-e)Top\"."
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(interactive)
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(info "(mh-e)Top")
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(delete-other-windows))
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(defun mh-tool-bar-letter-help ()
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"Visit \"(mh-e)Editing Drafts\"."
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(interactive)
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(info "(mh-e)Editing Drafts")
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(delete-other-windows))
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(defmacro mh-tool-bar-reply-generator (function recipient folder-buffer-flag)
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"Generate FUNCTION that replies to RECIPIENT.
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If FOLDER-BUFFER-FLAG is nil then the function generated...
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When INCLUDE-FLAG is non-nil, include message body being replied to."
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`(defun ,function (&optional arg)
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,(format "Reply to \"%s\".\nWhen ARG is non-nil include message in reply."
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recipient)
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(interactive "P")
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,(if folder-buffer-flag nil '(set-buffer mh-show-folder-buffer))
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(mh-reply (mh-get-msg-num nil) ,recipient arg)))
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(mh-tool-bar-reply-generator mh-tool-bar-reply-from "from" t)
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(mh-tool-bar-reply-generator mh-show-tool-bar-reply-from "from" nil)
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(mh-tool-bar-reply-generator mh-tool-bar-reply-to "to" t)
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(mh-tool-bar-reply-generator mh-show-tool-bar-reply-to "to" nil)
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(mh-tool-bar-reply-generator mh-tool-bar-reply-all "all" t)
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(mh-tool-bar-reply-generator mh-show-tool-bar-reply-all "all" nil)
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;;; Tool Bar Creation
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(defmacro mh-tool-bar-define (defaults &rest buttons)
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"Define a tool bar for MH-E.
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DEFAULTS is the list of buttons that are present by default. It
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is a list of lists where the sublists are of the following form:
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(:KEYWORD FUNC1 FUNC2 FUNC3 ...)
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Here :KEYWORD is one of :folder or :letter. If it is :folder then
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the default buttons in the folder and show mode buffers are being
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specified. If it is :letter then the default buttons in the
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letter mode are listed. FUNC1, FUNC2, FUNC3, ... are the names of
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the functions that the buttons would execute.
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Each element of BUTTONS is a list consisting of four mandatory
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items and one optional item as follows:
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(FUNCTION MODES ICON DOC &optional ENABLE-EXPR)
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where,
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FUNCTION is the name of the function that will be executed when
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the button is clicked.
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MODES is a list of symbols. List elements must be from \"folder\",
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\"letter\" and \"sequence\". If \"folder\" is present then the button is
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available in the folder and show buffer. If the name of FUNCTION is
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of the form \"mh-foo\", where foo is some arbitrary string, then we
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check if the function `mh-show-foo' exists. If it exists then that
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function is used in the show buffer. Otherwise the original function
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`mh-foo' is used in the show buffer as well. Presence of \"sequence\"
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is handled similar to the above. The only difference is that the
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button is shown only when the folder is narrowed to a sequence. If
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\"letter\" is present in MODES, then the button is available during
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draft editing and runs FUNCTION when clicked.
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ICON is the icon that is drawn in the button.
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DOC is the documentation for the button. It is used in tool-tips and
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in providing other help to the user. GNU Emacs uses only the first
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line of the string. So the DOC should be formatted such that the
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first line is useful and complete without the rest of the string.
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Optional item ENABLE-EXPR is an arbitrary lisp expression. If it
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evaluates to nil, then the button is inactive, otherwise it is
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active. If it isn't present then the button is always active."
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;; The following variable names have been carefully chosen to make code
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;; generation easier. Modifying the names should be done carefully.
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(mh-dlet* (folder-buttons
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folder-docs folder-button-setter sequence-button-setter
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show-buttons show-button-setter show-seq-button-setter
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letter-buttons letter-docs letter-button-setter
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folder-defaults letter-defaults
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folder-vectors show-vectors letter-vectors)
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(dolist (x defaults)
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(cond ((eq (car x) :folder) (setq folder-defaults (cdr x)))
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((eq (car x) :letter) (setq letter-defaults (cdr x)))))
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(dolist (button buttons)
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(unless (and (listp button)
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(or (equal (length button) 4) (equal (length button) 5)))
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(error "Incorrect MH-E tool-bar button specification: %s" button))
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(let* ((name (nth 0 button))
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(name-str (symbol-name name))
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(icon (nth 2 button))
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(full-doc (nth 3 button))
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(doc (if (string-match "\\(.*\\)\n" full-doc)
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(match-string 1 full-doc)
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full-doc))
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(enable-expr (if (eql (length button) 4) t (nth 4 button)))
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(modes (nth 1 button))
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functions show-sym)
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(when (memq 'letter modes) (setq functions `(:letter ,name)))
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(when (or (memq 'folder modes) (memq 'sequence modes))
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(setq functions
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(append `(,(if (memq 'folder modes) :folder :sequence) ,name)
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functions))
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(setq show-sym
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(if (string-match "\\`mh-\\(.*\\)\\'" name-str)
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(intern (concat "mh-show-" (match-string 1 name-str)))
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name))
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(setq functions
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(append `(,(if (memq 'folder modes) :show :show-seq)
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,(if (fboundp show-sym) show-sym name))
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functions)))
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(cl-do ((functions functions (cddr functions)))
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((null functions))
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(let* ((type (car functions))
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(function (cadr functions))
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(type1 (substring (symbol-name type) 1))
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(vector-list (cond ((eq type :show) 'show-vectors)
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((eq type :show-seq) 'show-vectors)
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((eq type :letter) 'letter-vectors)
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(t 'folder-vectors)))
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(list (cond ((eq type :letter) 'mh-tool-bar-letter-buttons)
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(t 'mh-tool-bar-folder-buttons)))
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(key (intern (concat "mh-" type1 "-tool-bar-" name-str)))
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(setter (intern (concat type1 "-button-setter")))
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(mbuttons (cond ((eq type :letter) 'letter-buttons)
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((eq type :show) 'show-buttons)
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((eq type :show-seq) 'show-buttons)
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(t 'folder-buttons)))
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(docs (cond ((eq mbuttons 'letter-buttons) 'letter-docs)
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((eq mbuttons 'folder-buttons) 'folder-docs))))
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(add-to-list vector-list `(vector nil ',function t ,full-doc))
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(add-to-list
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setter `(when (member ',name ,list)
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(tool-bar-add-item ,icon ',function ',key
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:help ,doc :enable ',enable-expr)))
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(add-to-list mbuttons name)
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(if docs (add-to-list docs doc))))))
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(setq folder-buttons (nreverse folder-buttons)
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letter-buttons (nreverse letter-buttons)
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show-buttons (nreverse show-buttons)
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letter-docs (nreverse letter-docs)
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folder-docs (nreverse folder-docs)
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folder-vectors (nreverse folder-vectors)
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show-vectors (nreverse show-vectors)
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letter-vectors (nreverse letter-vectors))
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(dolist (x folder-defaults)
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(unless (memq x folder-buttons)
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(error "Folder defaults contains unknown button %s" x)))
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(dolist (x letter-defaults)
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(unless (memq x letter-buttons)
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(error "Letter defaults contains unknown button %s" x)))
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`(eval-and-compile
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(defun mh-buffer-exists-p (mode)
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"Test whether a buffer with major mode MODE is present."
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(cl-loop for buf in (buffer-list)
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when (with-current-buffer buf
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(eq major-mode mode))
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return t))
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;; Tool bar initialization functions
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(defun mh-tool-bar-folder-buttons-init ()
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(when (mh-buffer-exists-p 'mh-folder-mode)
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(mh--with-image-load-path
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(setq mh-folder-tool-bar-map
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(let ((tool-bar-map (make-sparse-keymap)))
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,@(nreverse folder-button-setter)
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tool-bar-map))
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(setq mh-folder-seq-tool-bar-map
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(let ((tool-bar-map (copy-keymap mh-folder-tool-bar-map)))
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,@(nreverse sequence-button-setter)
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tool-bar-map))
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(setq mh-show-tool-bar-map
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(let ((tool-bar-map (make-sparse-keymap)))
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,@(nreverse show-button-setter)
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tool-bar-map))
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(setq mh-show-seq-tool-bar-map
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(let ((tool-bar-map (copy-keymap mh-show-tool-bar-map)))
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,@(nreverse show-seq-button-setter)
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tool-bar-map)))))
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(defun mh-tool-bar-letter-buttons-init ()
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(when (mh-buffer-exists-p 'mh-letter-mode)
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(mh--with-image-load-path
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(setq mh-letter-tool-bar-map
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(let ((tool-bar-map (make-sparse-keymap)))
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,@(nreverse letter-button-setter)
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tool-bar-map)))))
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;; Custom setter functions
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(defun mh-tool-bar-update (mode default-map sequence-map)
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"Update `tool-bar-map' in all buffers of MODE.
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Use SEQUENCE-MAP if display is limited; DEFAULT-MAP otherwise."
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(cl-loop for buf in (buffer-list)
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do (with-current-buffer buf
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(when (eq mode major-mode) ;FIXME: derived-mode-p?
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(let ((map (if mh-folder-view-stack
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sequence-map
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default-map)))
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;; Yes, make-local-variable is necessary since we
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;; get here during initialization when loading
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;; mh-e.el, after the +inbox buffer has been
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;; created, but before mh-folder-mode has run and
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;; created the local map.
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(setq-local tool-bar-map map))))))
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(defun mh-tool-bar-folder-buttons-set (symbol value)
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"Construct tool bar for `mh-folder-mode' and `mh-show-mode'."
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(set-default symbol value)
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(mh-tool-bar-folder-buttons-init)
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(mh-tool-bar-update 'mh-folder-mode mh-folder-tool-bar-map
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mh-folder-seq-tool-bar-map)
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(mh-tool-bar-update 'mh-show-mode mh-show-tool-bar-map
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mh-show-seq-tool-bar-map))
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(defun mh-tool-bar-letter-buttons-set (symbol value)
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"Construct tool bar for `mh-letter-mode'."
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(set-default symbol value)
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(mh-tool-bar-letter-buttons-init)
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(mh-tool-bar-update 'mh-letter-mode mh-letter-tool-bar-map
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mh-letter-tool-bar-map))
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;; Declare customizable tool bars
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(custom-declare-variable
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'mh-tool-bar-folder-buttons
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'(list ,@(mapcar (lambda (x) `(quote ,x)) folder-defaults))
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"List of buttons to include in MH-Folder tool bar."
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:group 'mh-tool-bar
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:set #'mh-tool-bar-folder-buttons-set
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:type '(set ,@(cl-loop for x in folder-buttons
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for y in folder-docs
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collect `(const :tag ,y ,x)))
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;;:package-version '(MH-E "7.1")
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)
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(custom-declare-variable
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'mh-tool-bar-letter-buttons
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'(list ,@(mapcar (lambda (x) `(quote ,x)) letter-defaults))
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"List of buttons to include in MH-Letter tool bar."
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:group 'mh-tool-bar
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:set #'mh-tool-bar-letter-buttons-set
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:type '(set ,@(cl-loop for x in letter-buttons
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for y in letter-docs
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collect `(const :tag ,y ,x)))
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;;:package-version '(MH-E "7.1")
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))))
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(mh-tool-bar-define
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((:folder mh-inc-folder mh-mime-save-parts
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mh-previous-undeleted-msg mh-page-msg
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mh-next-undeleted-msg mh-delete-msg mh-refile-msg
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mh-undo mh-execute-commands mh-toggle-tick mh-reply
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mh-alias-grab-from-field mh-send mh-rescan-folder
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mh-tool-bar-search mh-visit-folder
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mh-tool-bar-customize mh-tool-bar-folder-help
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mh-widen)
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(:letter mh-send-letter save-buffer mh-fully-kill-draft
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mh-compose-insertion ispell-message undo
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clipboard-kill-region clipboard-kill-ring-save
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clipboard-yank mh-tool-bar-customize
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mh-tool-bar-letter-help))
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;; Folder/Show buffer buttons
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(mh-inc-folder (folder) "mail/inbox" "Incorporate new mail in Inbox
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This button runs `mh-inc-folder' which drags any
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new mail into your Inbox folder")
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(mh-mime-save-parts (folder) "attach" "Save MIME parts from this message
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This button runs `mh-mime-save-parts' which saves a message's
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different parts into separate files")
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(mh-previous-undeleted-msg (folder) "left-arrow"
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"Go to the previous undeleted message
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This button runs `mh-previous-undeleted-msg'")
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(mh-page-msg (folder) "next-page" "Page the current message forwards
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This button runs `mh-page-msg'")
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(mh-next-undeleted-msg (folder) "right-arrow" "Go to the next undeleted message
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The button runs `mh-next-undeleted-msg'")
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(mh-delete-msg (folder) "delete" "Mark this message for deletion
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This button runs `mh-delete-msg'")
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(mh-refile-msg (folder) "mail/move" "Refile this message
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This button runs `mh-refile-msg'")
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(mh-undo (folder) "undo" "Undo last operation
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This button runs `undo'"
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(mh-outstanding-commands-p))
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(mh-execute-commands (folder) "data-save" "Perform moves and deletes
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This button runs `mh-execute-commands'"
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(mh-outstanding-commands-p))
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(mh-toggle-tick (folder) "mail/flag-for-followup" "Toggle tick mark
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This button runs `mh-toggle-tick'")
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(mh-toggle-showing (folder) "show" "Toggle showing message
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This button runs `mh-toggle-showing'")
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(mh-reply (folder) "mail/reply" "Reply to this message
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This button runs `mh-reply'")
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(mh-tool-bar-reply-from (folder) "mail/reply-from" "Reply to \"from\"")
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(mh-tool-bar-reply-to (folder) "mail/reply-to" "Reply to \"to\"")
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(mh-tool-bar-reply-all (folder) "mail/reply-all" "Reply to \"all\"")
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(mh-alias-grab-from-field (folder) "contact" "Create alias for sender
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This button runs `mh-alias-grab-from-field'"
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(and (mh-extract-from-header-value)
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(not (mh-alias-for-from-p))))
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(mh-send (folder) "mail/compose" "Compose new message
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This button runs `mh-send'")
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(mh-rescan-folder (folder) "refresh" "Rescan this folder
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This button runs `mh-rescan-folder'")
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(mh-pack-folder (folder) "mail/repack" "Repack this folder
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This button runs `mh-pack-folder'")
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(mh-tool-bar-search (folder) "search" "Search
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This button runs `mh-tool-bar-search-function'")
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(mh-visit-folder (folder) "open" "Visit other folder
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This button runs `mh-visit-folder'")
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;; Letter buffer buttons
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(mh-send-letter (letter) "mail/send" "Send this letter")
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(save-buffer (letter) "save" "Save current buffer to its file"
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(buffer-modified-p))
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(mh-fully-kill-draft (letter) "delete" "Kill this draft")
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(mh-compose-insertion (letter) "attach" "Insert attachment")
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(ispell-message (letter) "spell" "Check spelling")
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(undo (letter) "undo" "Undo last operation")
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(clipboard-kill-region (letter) "cut"
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"Cut (kill) text in region")
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(clipboard-kill-ring-save (letter) "copy"
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"Copy text in region")
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(clipboard-yank (letter) "paste"
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"Paste (yank) text cut or copied earlier")
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;; Common buttons
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(mh-tool-bar-customize (folder letter) "preferences" "MH-E Preferences")
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(mh-tool-bar-folder-help (folder) "help" "Help! (general help)
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This button runs `info'")
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(mh-tool-bar-letter-help (letter) "help" "Help! (general help)
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This button runs `info'")
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;; Folder narrowed to sequence buttons
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(mh-widen (sequence) "zoom-out" "Widen from the sequence
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This button runs `mh-widen'"))
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(provide 'mh-tool-bar)
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;; Local Variables:
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;; sentence-end-double-space: nil
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;; End:
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;;; mh-tool-bar.el ends here
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