lisp/mh-e/mh-tool-bar.el

   1 ;;; mh-tool-bar.el --- MH-E tool bar support
   2
   3 ;; Copyright (C) 2002, 2003, 2005, 2006 Free Software Foundation, Inc.
   4
   5 ;; Author: Satyaki Das <satyaki@theforce.stanford.edu>
   6 ;; Maintainer: Bill Wohler <wohler@newt.com>
   7 ;; Keywords: mail
   8 ;; See: mh-e.el
   9
  10 ;; This file is part of GNU Emacs.
  11
  12 ;; GNU Emacs is free software; you can redistribute it and/or modify
  13 ;; it under the terms of the GNU General Public License as published by
  14 ;; the Free Software Foundation; either version 2, or (at your option)
  15 ;; any later version.
  16
  17 ;; GNU Emacs is distributed in the hope that it will be useful,
  18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ;; GNU General Public License for more details.
  21
  22 ;; You should have received a copy of the GNU General Public License
  23 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  24 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  25 ;; Boston, MA 02110-1301, USA.
  26
  27 ;;; Commentary:
  28
  29 ;;; Change Log:
  30
  31 ;;; Code:
  32
  33 (require 'mh-e)
  34
  35 ;;; Tool Bar Commands
  36
  37 (defun mh-tool-bar-search (&optional arg)
  38   "Interactively call `mh-tool-bar-search-function'.
  39 Optional argument ARG is not used."
  40   (interactive "P")
  41   (call-interactively mh-tool-bar-search-function))
  42
  43 (defun mh-tool-bar-customize ()
  44   "Call `mh-customize' from the tool bar."
  45   (interactive)
  46   (mh-customize t))
  47
  48 (defun mh-tool-bar-folder-help ()
  49   "Visit \"(mh-e)Top\"."
  50   (interactive)
  51   (info "(mh-e)Top")
  52   (delete-other-windows))
  53
  54 (defun mh-tool-bar-letter-help ()
  55   "Visit \"(mh-e)Editing Drafts\"."
  56   (interactive)
  57   (info "(mh-e)Editing Drafts")
  58   (delete-other-windows))
  59
  60 (defmacro mh-tool-bar-reply-generator (function recipient folder-buffer-flag)
  61   "Generate FUNCTION that replies to RECIPIENT.
  62 If FOLDER-BUFFER-FLAG is nil then the function generated...
  63 When INCLUDE-FLAG is non-nil, include message body being replied to."
  64   `(defun ,function (&optional arg)
  65      ,(format "Reply to \"%s\".\nWhen ARG is non-nil include message in reply."
  66               recipient)
  67      (interactive "P")
  68      ,(if folder-buffer-flag nil '(set-buffer mh-show-folder-buffer))
  69      (mh-reply (mh-get-msg-num nil) ,recipient arg)))
  70
  71 (mh-tool-bar-reply-generator mh-tool-bar-reply-from "from" t)
  72 (mh-tool-bar-reply-generator mh-show-tool-bar-reply-from "from" nil)
  73 (mh-tool-bar-reply-generator mh-tool-bar-reply-to "to" t)
  74 (mh-tool-bar-reply-generator mh-show-tool-bar-reply-to "to" nil)
  75 (mh-tool-bar-reply-generator mh-tool-bar-reply-all "all" t)
  76 (mh-tool-bar-reply-generator mh-show-tool-bar-reply-all "all" nil)
  77
  78 \f
  79
  80 ;;; Tool Bar Creation
  81
  82 (defmacro mh-tool-bar-define (defaults &rest buttons)
  83   "Define a tool bar for MH-E.
  84 DEFAULTS is the list of buttons that are present by default. It
  85 is a list of lists where the sublists are of the following form:
  86
  87   (:KEYWORD FUNC1 FUNC2 FUNC3 ...)
  88
  89 Here :KEYWORD is one of :folder or :letter. If it is :folder then
  90 the default buttons in the folder and show mode buffers are being
  91 specified. If it is :letter then the default buttons in the
  92 letter mode are listed. FUNC1, FUNC2, FUNC3, ... are the names of
  93 the functions that the buttons would execute.
  94
  95 Each element of BUTTONS is a list consisting of four mandatory
  96 items and one optional item as follows:
  97
  98   (FUNCTION MODES ICON DOC &optional ENABLE-EXPR)
  99
 100 where,
 101
 102   FUNCTION is the name of the function that will be executed when
 103   the button is clicked.
 104
 105   MODES is a list of symbols. List elements must be from \"folder\",
 106   \"letter\" and \"sequence\". If \"folder\" is present then the button is
 107   available in the folder and show buffer. If the name of FUNCTION is
 108   of the form \"mh-foo\", where foo is some arbitrary string, then we
 109   check if the function `mh-show-foo' exists. If it exists then that
 110   function is used in the show buffer. Otherwise the original function
 111   `mh-foo' is used in the show buffer as well. Presence of \"sequence\"
 112   is handled similar to the above. The only difference is that the
 113   button is shown only when the folder is narrowed to a sequence. If
 114   \"letter\" is present in MODES, then the button is available during
 115   draft editing and runs FUNCTION when clicked.
 116
 117   ICON is the icon that is drawn in the button.
 118
 119   DOC is the documentation for the button. It is used in tool-tips and
 120   in providing other help to the user. GNU Emacs uses only the first
 121   line of the string. So the DOC should be formatted such that the
 122   first line is useful and complete without the rest of the string.
 123
 124   Optional item ENABLE-EXPR is an arbitrary lisp expression. If it
 125   evaluates to nil, then the button is deactivated, otherwise it is
 126   active. If it isn't present then the button is always active."
 127   ;; The following variable names have been carefully chosen to make code
 128   ;; generation easier. Modifying the names should be done carefully.
 129   (let (folder-buttons folder-docs folder-button-setter sequence-button-setter
 130                        show-buttons show-button-setter show-seq-button-setter
 131                        letter-buttons letter-docs letter-button-setter
 132                        folder-defaults letter-defaults
 133                        folder-vectors show-vectors letter-vectors)
 134     (dolist (x defaults)
 135       (cond ((eq (car x) :folder) (setq folder-defaults (cdr x)))
 136             ((eq (car x) :letter) (setq letter-defaults (cdr x)))))
 137     (dolist (button buttons)
 138       (unless (and (listp button)
 139                    (or (equal (length button) 4) (equal (length button) 5)))
 140         (error "Incorrect MH-E tool-bar button specification: %s" button))
 141       (let* ((name (nth 0 button))
 142              (name-str (symbol-name name))
 143              (icon (nth 2 button))
 144              (xemacs-icon (mh-do-in-xemacs
 145                             (cdr (assoc (intern icon) mh-xemacs-icon-map))))
 146              (full-doc (nth 3 button))
 147              (doc (if (string-match "\\(.*\\)\n" full-doc)
 148                       (match-string 1 full-doc)
 149                     full-doc))
 150              (enable-expr (or (nth 4 button) t))
 151              (modes (nth 1 button))
 152              functions show-sym)
 153         (when (memq 'letter modes) (setq functions `(:letter ,name)))
 154         (when (or (memq 'folder modes) (memq 'sequence modes))
 155           (setq functions
 156                 (append `(,(if (memq 'folder modes) :folder :sequence) ,name)
 157                         functions))
 158           (setq show-sym
 159                 (if (string-match "^mh-\\(.*\\)$" name-str)
 160                     (intern (concat "mh-show-" (match-string 1 name-str)))
 161                   name))
 162           (setq functions
 163                 (append `(,(if (memq 'folder modes) :show :show-seq)
 164                           ,(if (fboundp show-sym) show-sym name))
 165                         functions)))
 166         (do ((functions functions (cddr functions)))
 167             ((null functions))
 168           (let* ((type (car functions))
 169                  (function (cadr functions))
 170                  (type1 (substring (symbol-name type) 1))
 171                  (vector-list (cond ((eq type :show) 'show-vectors)
 172                                     ((eq type :show-seq) 'show-vectors)
 173                                     ((eq type :letter) 'letter-vectors)
 174                                     (t 'folder-vectors)))
 175                  (list (cond ((eq type :letter) 'mh-tool-bar-letter-buttons)
 176                              (t 'mh-tool-bar-folder-buttons)))
 177                  (key (intern (concat "mh-" type1 "tool-bar-" name-str)))
 178                  (setter (intern (concat type1 "-button-setter")))
 179                  (mbuttons (cond ((eq type :letter) 'letter-buttons)
 180                                  ((eq type :show) 'show-buttons)
 181                                  ((eq type :show-seq) 'show-buttons)
 182                                  (t 'folder-buttons)))
 183                  (docs (cond ((eq mbuttons 'letter-buttons) 'letter-docs)
 184                              ((eq mbuttons 'folder-buttons) 'folder-docs))))
 185             (add-to-list vector-list `[,xemacs-icon ,function t ,full-doc])
 186             (add-to-list
 187              setter `(when (member ',name ,list)
 188                        (mh-funcall-if-exists
 189                         tool-bar-add-item ,icon ',function ',key
 190                         :help ,doc :enable ',enable-expr)))
 191             (add-to-list mbuttons name)
 192             (if docs (add-to-list docs doc))))))
 193     (setq folder-buttons (nreverse folder-buttons)
 194           letter-buttons (nreverse letter-buttons)
 195           show-buttons (nreverse show-buttons)
 196           letter-docs (nreverse letter-docs)
 197           folder-docs (nreverse folder-docs)
 198           folder-vectors (nreverse folder-vectors)
 199           show-vectors (nreverse show-vectors)
 200           letter-vectors (nreverse letter-vectors))
 201     (dolist (x folder-defaults)
 202       (unless (memq x folder-buttons)
 203         (error "Folder defaults contains unknown button '%s'" x)))
 204     (dolist (x letter-defaults)
 205       (unless (memq x letter-buttons)
 206         (error "Letter defaults contains unknown button '%s'" x)))
 207     `(eval-when (compile load eval)
 208        (defun mh-buffer-exists-p (mode)
 209          "Test whether a buffer with major mode MODE is present."
 210          (loop for buf in (buffer-list)
 211                when (save-excursion
 212                       (set-buffer buf)
 213                       (eq major-mode mode))
 214                return t))
 215
 216        ;; GNU Emacs tool bar specific code
 217        (mh-do-in-gnu-emacs
 218          ;; Tool bar initialization functions
 219          (defun mh-tool-bar-folder-buttons-init ()
 220            (when (mh-buffer-exists-p 'mh-folder-mode)
 221              (mh-image-load-path)
 222              (setq mh-folder-tool-bar-map
 223                    (let ((tool-bar-map (make-sparse-keymap)))
 224                      ,@(nreverse folder-button-setter)
 225                      tool-bar-map))
 226              (setq mh-show-tool-bar-map
 227                    (let ((tool-bar-map (make-sparse-keymap)))
 228                      ,@(nreverse show-button-setter)
 229                      tool-bar-map))
 230              (setq mh-show-seq-tool-bar-map
 231                    (let ((tool-bar-map (copy-keymap mh-show-tool-bar-map)))
 232                      ,@(nreverse show-seq-button-setter)
 233                      tool-bar-map))
 234              (setq mh-folder-seq-tool-bar-map
 235                    (let ((tool-bar-map (copy-keymap mh-folder-tool-bar-map)))
 236                      ,@(nreverse sequence-button-setter)
 237                      tool-bar-map))))
 238          (defun mh-tool-bar-letter-buttons-init ()
 239            (when (mh-buffer-exists-p 'mh-letter-mode)
 240              (mh-image-load-path)
 241              (setq mh-letter-tool-bar-map
 242                    (let ((tool-bar-map (make-sparse-keymap)))
 243                      ,@(nreverse letter-button-setter)
 244                      tool-bar-map))))
 245          ;; Custom setter functions
 246          (defun mh-tool-bar-folder-buttons-set (symbol value)
 247            "Construct tool bar for `mh-folder-mode' and `mh-show-mode'."
 248            (set-default symbol value)
 249            (mh-tool-bar-folder-buttons-init))
 250          (defun mh-tool-bar-letter-buttons-set (symbol value)
 251            "Construct tool bar for `mh-letter-mode'."
 252            (set-default symbol value)
 253            (mh-tool-bar-letter-buttons-init)))
 254        ;; XEmacs specific code
 255        (mh-do-in-xemacs
 256          (defvar mh-tool-bar-folder-vector-map
 257            ',(loop for button in folder-buttons
 258                    for vector in folder-vectors
 259                    collect (cons button vector)))
 260          (defvar mh-tool-bar-show-vector-map
 261            ',(loop for button in show-buttons
 262                    for vector in show-vectors
 263                    collect (cons button vector)))
 264          (defvar mh-tool-bar-letter-vector-map
 265            ',(loop for button in letter-buttons
 266                    for vector in letter-vectors
 267                    collect (cons button vector)))
 268          (defvar mh-tool-bar-folder-buttons nil)
 269          (defvar mh-tool-bar-show-buttons nil)
 270          (defvar mh-tool-bar-letter-buttons nil)
 271          ;; Custom setter functions
 272          (defun mh-tool-bar-letter-buttons-set (symbol value)
 273            (set-default symbol value)
 274            (when mh-xemacs-has-tool-bar-flag
 275              (setq mh-tool-bar-letter-buttons
 276                    (loop for b in value
 277                          collect (cdr (assoc b mh-tool-bar-letter-vector-map))))))
 278          (defun mh-tool-bar-folder-buttons-set (symbol value)
 279            (set-default symbol value)
 280            (when mh-xemacs-has-tool-bar-flag
 281              (setq mh-tool-bar-folder-buttons
 282                    (loop for b in value
 283                          collect (cdr (assoc b mh-tool-bar-folder-vector-map))))
 284              (setq mh-tool-bar-show-buttons
 285                    (loop for b in value
 286                          collect (cdr (assoc b mh-tool-bar-show-vector-map))))))
 287          (defun mh-tool-bar-init (mode)
 288            "Install tool bar in MODE."
 289            (let ((tool-bar (cond ((eq mode :folder) mh-tool-bar-folder-buttons)
 290                                 ((eq mode :letter) mh-tool-bar-letter-buttons)
 291                                 ((eq mode :show) mh-tool-bar-show-buttons)))
 292                  (height 37)
 293                  (width 40)
 294                  (buffer (current-buffer)))
 295              (when mh-xemacs-use-tool-bar-flag
 296                (cond
 297                 ((eq mh-xemacs-tool-bar-position 'top)
 298                  (set-specifier top-toolbar tool-bar buffer)
 299                  (set-specifier top-toolbar-visible-p t)
 300                  (set-specifier top-toolbar-height height))
 301                 ((eq mh-xemacs-tool-bar-position 'bottom)
 302                  (set-specifier bottom-toolbar tool-bar buffer)
 303                  (set-specifier bottom-toolbar-visible-p t)
 304                  (set-specifier bottom-toolbar-height height))
 305                 ((eq mh-xemacs-tool-bar-position 'left)
 306                  (set-specifier left-toolbar tool-bar buffer)
 307                  (set-specifier left-toolbar-visible-p t)
 308                  (set-specifier left-toolbar-width width))
 309                 ((eq mh-xemacs-tool-bar-position 'right)
 310                  (set-specifier right-toolbar tool-bar buffer)
 311                  (set-specifier right-toolbar-visible-p t)
 312                  (set-specifier right-toolbar-width width))
 313                 (t (set-specifier default-toolbar tool-bar buffer)))))))
 314        ;; Declare customizable tool bars
 315        (custom-declare-variable
 316         'mh-tool-bar-folder-buttons
 317         '(list ,@(mapcar (lambda (x) `(quote ,x)) folder-defaults))
 318         "List of buttons to include in MH-Folder tool bar."
 319         :group 'mh-tool-bar :set 'mh-tool-bar-folder-buttons-set
 320         :type '(set ,@(loop for x in folder-buttons
 321                             for y in folder-docs
 322                             collect `(const :tag ,y ,x))))
 323        (custom-declare-variable
 324         'mh-tool-bar-letter-buttons
 325         '(list ,@(mapcar (lambda (x) `(quote ,x)) letter-defaults))
 326         "List of buttons to include in MH-Letter tool bar."
 327         :group 'mh-tool-bar :set 'mh-tool-bar-letter-buttons-set
 328         :type '(set ,@(loop for x in letter-buttons
 329                             for y in letter-docs
 330                             collect `(const :tag ,y ,x)))))))
 331
 332 (mh-tool-bar-define
 333     ((:folder mh-inc-folder mh-mime-save-parts mh-previous-undeleted-msg
 334               mh-page-msg  mh-next-undeleted-msg mh-delete-msg mh-refile-msg
 335               mh-undo mh-execute-commands mh-toggle-tick mh-reply
 336               mh-alias-grab-from-field mh-send mh-rescan-folder
 337               mh-tool-bar-search mh-visit-folder
 338               mh-tool-bar-customize mh-tool-bar-folder-help mh-widen)
 339      (:letter mh-send-letter mh-compose-insertion ispell-message save-buffer
 340               undo kill-region menu-bar-kill-ring-save yank mh-fully-kill-draft
 341               mh-tool-bar-customize mh-tool-bar-letter-help))
 342   ;; Folder/Show buffer buttons
 343   (mh-inc-folder (folder) "mail"
 344     "Incorporate new mail in Inbox
 345 This button runs `mh-inc-folder' which drags any
 346 new mail into your Inbox folder.")
 347   (mh-mime-save-parts (folder) "attach"
 348     "Save MIME parts from this message
 349 This button runs `mh-mime-save-parts' which saves a message's
 350 different parts into separate files.")
 351   (mh-previous-undeleted-msg (folder) "left-arrow"
 352     "Go to the previous undeleted message
 353 This button runs `mh-previous-undeleted-msg'")
 354   (mh-page-msg (folder) "page-down"
 355     "Page the current message forwards\nThis button runs `mh-page-msg'")
 356   (mh-next-undeleted-msg (folder) "right-arrow"
 357     "Go to the next undeleted message\nThe button runs `mh-next-undeleted-msg'")
 358   (mh-delete-msg (folder) "close"
 359     "Mark this message for deletion\nThis button runs `mh-delete-msg'")
 360   (mh-refile-msg (folder) "mail/refile"
 361     "Refile this message\nThis button runs `mh-refile-msg'")
 362   (mh-undo (folder) "undo" "Undo last operation\nThis button runs `undo'"
 363     (mh-outstanding-commands-p))
 364   (mh-execute-commands (folder) "execute"
 365     "Perform moves and deletes\nThis button runs `mh-execute-commands'"
 366     (mh-outstanding-commands-p))
 367   (mh-toggle-tick (folder) "highlight"
 368     "Toggle tick mark\nThis button runs `mh-toggle-tick'")
 369   (mh-toggle-showing (folder) "show"
 370     "Toggle showing message\nThis button runs `mh-toggle-showing'")
 371   (mh-tool-bar-reply-from (folder) "mail/reply-from" "Reply to \"from\"")
 372   (mh-tool-bar-reply-to (folder) "mail/reply-to" "Reply to \"to\"")
 373   (mh-tool-bar-reply-all (folder) "mail/reply-all" "Reply to \"all\"")
 374   (mh-reply (folder) "mail/reply"
 375     "Reply to this message\nThis button runs `mh-reply'")
 376   (mh-alias-grab-from-field (folder) "mail/alias"
 377     "Grab From alias\nThis button runs `mh-alias-grab-from-field'"
 378     (and (mh-extract-from-header-value) (not (mh-alias-for-from-p))))
 379   (mh-send (folder) "mail/compose"
 380     "Compose new message\nThis button runs `mh-send'")
 381   (mh-rescan-folder (folder) "refresh"
 382     "Rescan this folder\nThis button runs `mh-rescan-folder'")
 383   (mh-pack-folder (folder) "mail/repack"
 384     "Repack this folder\nThis button runs `mh-pack-folder'")
 385   (mh-tool-bar-search (folder) "search"
 386     "Search\nThis button runs `mh-tool-bar-search-function'")
 387   (mh-visit-folder (folder) "fld-open"
 388     "Visit other folder\nThis button runs `mh-visit-folder'")
 389   ;; Letter buffer buttons
 390   (mh-send-letter (letter) "mail/send" "Send this letter")
 391   (mh-compose-insertion (letter) "attach" "Insert attachment")
 392   (ispell-message (letter) "spell" "Check spelling")
 393   (save-buffer (letter) "save" "Save current buffer to its file"
 394     (buffer-modified-p))
 395   (undo (letter) "undo" "Undo last operation")
 396   (kill-region (letter) "cut"
 397     "Cut (kill) text in region between mark and current position")
 398   (menu-bar-kill-ring-save (letter) "copy"
 399     "Copy text in region between mark and current position")
 400   (yank (letter) "paste" "Paste (yank) text cut or copied earlier")
 401   (mh-fully-kill-draft (letter) "close" "Kill this draft")
 402   ;; Common buttons
 403   (mh-tool-bar-customize (folder letter) "preferences" "MH-E Preferences")
 404   (mh-tool-bar-folder-help (folder) "help"
 405     "Help! (general help)\nThis button runs `info'")
 406   (mh-tool-bar-letter-help (letter) "help"
 407     "Help! (general help)\nThis button runs `info'")
 408   ;; Folder narrowed to sequence buttons
 409   (mh-widen (sequence) "widen"
 410     "Widen from the sequence\nThis button runs `mh-widen'"))
 411
 412 (provide 'mh-tool-bar)
 413
 414 ;; Local Variables:
 415 ;; indent-tabs-mode: nil
 416 ;; sentence-end-double-space: nil
 417 ;; End:
 418
 419 ;;; mh-tool-bar.el ends here