Function: mh-tool-bar-letter-buttons-set
mh-tool-bar-letter-buttons-set is a byte-compiled function defined in
mh-tool-bar.el.gz.
Signature
(mh-tool-bar-letter-buttons-set SYMBOL VALUE)
Documentation
Construct tool bar for mh-letter-mode.
Source Code
;; Defined in /usr/src/emacs/lisp/mh-e/mh-tool-bar.el.gz
(defmacro mh-tool-bar-define (defaults &rest buttons)
"Define a tool bar for MH-E.
DEFAULTS is the list of buttons that are present by default. It
is a list of lists where the sublists are of the following form:
(:KEYWORD FUNC1 FUNC2 FUNC3 ...)
Here :KEYWORD is one of :folder or :letter. If it is :folder then
the default buttons in the folder and show mode buffers are being
specified. If it is :letter then the default buttons in the
letter mode are listed. FUNC1, FUNC2, FUNC3, ... are the names of
the functions that the buttons would execute.
Each element of BUTTONS is a list consisting of four mandatory
items and one optional item as follows:
(FUNCTION MODES ICON DOC &optional ENABLE-EXPR)
where,
FUNCTION is the name of the function that will be executed when
the button is clicked.
MODES is a list of symbols. List elements must be from \"folder\",
\"letter\" and \"sequence\". If \"folder\" is present then the button is
available in the folder and show buffer. If the name of FUNCTION is
of the form \"mh-foo\", where foo is some arbitrary string, then we
check if the function `mh-show-foo' exists. If it exists then that
function is used in the show buffer. Otherwise the original function
`mh-foo' is used in the show buffer as well. Presence of \"sequence\"
is handled similar to the above. The only difference is that the
button is shown only when the folder is narrowed to a sequence. If
\"letter\" is present in MODES, then the button is available during
draft editing and runs FUNCTION when clicked.
ICON is the icon that is drawn in the button.
DOC is the documentation for the button. It is used in tool-tips and
in providing other help to the user. GNU Emacs uses only the first
line of the string. So the DOC should be formatted such that the
first line is useful and complete without the rest of the string.
Optional item ENABLE-EXPR is an arbitrary lisp expression. If it
evaluates to nil, then the button is inactive, otherwise it is
active. If it isn't present then the button is always active."
;; The following variable names have been carefully chosen to make code
;; generation easier. Modifying the names should be done carefully.
(mh-dlet* (folder-buttons
folder-docs folder-button-setter sequence-button-setter
show-buttons show-button-setter show-seq-button-setter
letter-buttons letter-docs letter-button-setter
folder-defaults letter-defaults
folder-vectors show-vectors letter-vectors)
(dolist (x defaults)
(cond ((eq (car x) :folder) (setq folder-defaults (cdr x)))
((eq (car x) :letter) (setq letter-defaults (cdr x)))))
(dolist (button buttons)
(unless (and (listp button)
(or (equal (length button) 4) (equal (length button) 5)))
(error "Incorrect MH-E tool-bar button specification: %s" button))
(let* ((name (nth 0 button))
(name-str (symbol-name name))
(icon (nth 2 button))
(xemacs-icon (mh-do-in-xemacs
`(cdr (assoc (quote ,(intern icon)) mh-xemacs-icon-map))))
(full-doc (nth 3 button))
(doc (if (string-match "\\(.*\\)\n" full-doc)
(match-string 1 full-doc)
full-doc))
(enable-expr (if (eql (length button) 4) t (nth 4 button)))
(modes (nth 1 button))
functions show-sym)
(when (memq 'letter modes) (setq functions `(:letter ,name)))
(when (or (memq 'folder modes) (memq 'sequence modes))
(setq functions
(append `(,(if (memq 'folder modes) :folder :sequence) ,name)
functions))
(setq show-sym
(if (string-match "\\`mh-\\(.*\\)\\'" name-str)
(intern (concat "mh-show-" (match-string 1 name-str)))
name))
(setq functions
(append `(,(if (memq 'folder modes) :show :show-seq)
,(if (fboundp show-sym) show-sym name))
functions)))
(cl-do ((functions functions (cddr functions)))
((null functions))
(let* ((type (car functions))
(function (cadr functions))
(type1 (substring (symbol-name type) 1))
(vector-list (cond ((eq type :show) 'show-vectors)
((eq type :show-seq) 'show-vectors)
((eq type :letter) 'letter-vectors)
(t 'folder-vectors)))
(list (cond ((eq type :letter) 'mh-tool-bar-letter-buttons)
(t 'mh-tool-bar-folder-buttons)))
(key (intern (concat "mh-" type1 "-tool-bar-" name-str)))
(setter (intern (concat type1 "-button-setter")))
(mbuttons (cond ((eq type :letter) 'letter-buttons)
((eq type :show) 'show-buttons)
((eq type :show-seq) 'show-buttons)
(t 'folder-buttons)))
(docs (cond ((eq mbuttons 'letter-buttons) 'letter-docs)
((eq mbuttons 'folder-buttons) 'folder-docs))))
(add-to-list vector-list `(vector ,xemacs-icon ',function t ,full-doc))
(add-to-list
setter `(when (member ',name ,list)
(mh-funcall-if-exists
tool-bar-add-item ,icon ',function ',key
:help ,doc :enable ',enable-expr)))
(add-to-list mbuttons name)
(if docs (add-to-list docs doc))))))
(setq folder-buttons (nreverse folder-buttons)
letter-buttons (nreverse letter-buttons)
show-buttons (nreverse show-buttons)
letter-docs (nreverse letter-docs)
folder-docs (nreverse folder-docs)
folder-vectors (nreverse folder-vectors)
show-vectors (nreverse show-vectors)
letter-vectors (nreverse letter-vectors))
(dolist (x folder-defaults)
(unless (memq x folder-buttons)
(error "Folder defaults contains unknown button %s" x)))
(dolist (x letter-defaults)
(unless (memq x letter-buttons)
(error "Letter defaults contains unknown button %s" x)))
`(eval-and-compile
;; GNU Emacs tool bar specific code
(mh-do-in-gnu-emacs
(defun mh-buffer-exists-p (mode)
"Test whether a buffer with major mode MODE is present."
(cl-loop for buf in (buffer-list)
when (with-current-buffer buf
(eq major-mode mode))
return t))
;; Tool bar initialization functions
(defun mh-tool-bar-folder-buttons-init ()
(when (mh-buffer-exists-p 'mh-folder-mode)
(let* ((load-path (mh-image-load-path-for-library "mh-e"
"mh-logo.xpm"))
(image-load-path (cons (car load-path)
(when (boundp 'image-load-path)
image-load-path))))
(setq mh-folder-tool-bar-map
(let ((tool-bar-map (make-sparse-keymap)))
,@(nreverse folder-button-setter)
tool-bar-map))
(setq mh-folder-seq-tool-bar-map
(let ((tool-bar-map (copy-keymap mh-folder-tool-bar-map)))
,@(nreverse sequence-button-setter)
tool-bar-map))
(setq mh-show-tool-bar-map
(let ((tool-bar-map (make-sparse-keymap)))
,@(nreverse show-button-setter)
tool-bar-map))
(setq mh-show-seq-tool-bar-map
(let ((tool-bar-map (copy-keymap mh-show-tool-bar-map)))
,@(nreverse show-seq-button-setter)
tool-bar-map)))))
(defun mh-tool-bar-letter-buttons-init ()
(when (mh-buffer-exists-p 'mh-letter-mode)
(let* ((load-path (mh-image-load-path-for-library "mh-e"
"mh-logo.xpm"))
(image-load-path (cons (car load-path)
(when (boundp 'image-load-path)
image-load-path))))
(setq mh-letter-tool-bar-map
(let ((tool-bar-map (make-sparse-keymap)))
,@(nreverse letter-button-setter)
tool-bar-map)))))
;; Custom setter functions
(defun mh-tool-bar-update (mode default-map sequence-map)
"Update `tool-bar-map' in all buffers of MODE.
Use SEQUENCE-MAP if display is limited; DEFAULT-MAP otherwise."
(cl-loop for buf in (buffer-list)
do (with-current-buffer buf
(when (eq mode major-mode) ;FIXME: derived-mode-p?
(let ((map (if mh-folder-view-stack
sequence-map
default-map)))
;; Yes, make-local-variable is necessary since we
;; get here during initialization when loading
;; mh-e.el, after the +inbox buffer has been
;; created, but before mh-folder-mode has run and
;; created the local map.
(set (make-local-variable 'tool-bar-map) map))))))
(defun mh-tool-bar-folder-buttons-set (symbol value)
"Construct tool bar for `mh-folder-mode' and `mh-show-mode'."
(set-default symbol value)
(mh-tool-bar-folder-buttons-init)
(mh-tool-bar-update 'mh-folder-mode mh-folder-tool-bar-map
mh-folder-seq-tool-bar-map)
(mh-tool-bar-update 'mh-show-mode mh-show-tool-bar-map
mh-show-seq-tool-bar-map))
(defun mh-tool-bar-letter-buttons-set (symbol value)
"Construct tool bar for `mh-letter-mode'."
(set-default symbol value)
(mh-tool-bar-letter-buttons-init)
(mh-tool-bar-update 'mh-letter-mode mh-letter-tool-bar-map
mh-letter-tool-bar-map)))
;; XEmacs specific code
(mh-do-in-xemacs
(defvar mh-tool-bar-folder-vector-map
(list ,@(cl-loop for button in folder-buttons
for vector in folder-vectors
collect `(cons ',button ,vector))))
(defvar mh-tool-bar-show-vector-map
(list ,@(cl-loop for button in show-buttons
for vector in show-vectors
collect `(cons ',button ,vector))))
(defvar mh-tool-bar-letter-vector-map
(list ,@(cl-loop for button in letter-buttons
for vector in letter-vectors
collect `(cons ',button ,vector))))
(defvar mh-tool-bar-folder-buttons)
(defvar mh-tool-bar-show-buttons)
(defvar mh-tool-bar-letter-buttons)
;; Custom setter functions
(defun mh-tool-bar-letter-buttons-set (symbol value)
(set-default symbol value)
(when mh-xemacs-has-tool-bar-flag
(setq mh-tool-bar-letter-buttons
(cl-loop
for b in value
collect (cdr (assoc b mh-tool-bar-letter-vector-map))))))
(defun mh-tool-bar-folder-buttons-set (symbol value)
(set-default symbol value)
(when mh-xemacs-has-tool-bar-flag
(setq mh-tool-bar-folder-buttons
(cl-loop
for b in value
collect (cdr (assoc b mh-tool-bar-folder-vector-map))))
(setq mh-tool-bar-show-buttons
(cl-loop
for b in value
collect (cdr (assoc b mh-tool-bar-show-vector-map))))))
(defun mh-tool-bar-init (mode)
"Install tool bar in MODE."
(when mh-xemacs-use-tool-bar-flag
(let ((tool-bar (cond ((eq mode :folder)
mh-tool-bar-folder-buttons)
((eq mode :letter)
mh-tool-bar-letter-buttons)
((eq mode :show)
mh-tool-bar-show-buttons)))
(height 37)
(width 40)
(buffer (current-buffer)))
(cond
((eq mh-xemacs-tool-bar-position 'top)
(set-specifier top-toolbar tool-bar buffer)
(set-specifier top-toolbar-visible-p t)
(set-specifier top-toolbar-height height))
((eq mh-xemacs-tool-bar-position 'bottom)
(set-specifier bottom-toolbar tool-bar buffer)
(set-specifier bottom-toolbar-visible-p t)
(set-specifier bottom-toolbar-height height))
((eq mh-xemacs-tool-bar-position 'left)
(set-specifier left-toolbar tool-bar buffer)
(set-specifier left-toolbar-visible-p t)
(set-specifier left-toolbar-width width))
((eq mh-xemacs-tool-bar-position 'right)
(set-specifier right-toolbar tool-bar buffer)
(set-specifier right-toolbar-visible-p t)
(set-specifier right-toolbar-width width))
(t (set-specifier default-toolbar tool-bar buffer)))))))
;; Declare customizable tool bars
(custom-declare-variable
'mh-tool-bar-folder-buttons
'(list ,@(mapcar (lambda (x) `(quote ,x)) folder-defaults))
"List of buttons to include in MH-Folder tool bar."
:group 'mh-tool-bar
:set #'mh-tool-bar-folder-buttons-set
:type '(set ,@(cl-loop for x in folder-buttons
for y in folder-docs
collect `(const :tag ,y ,x)))
;;:package-version '(MH-E "7.1")
)
(custom-declare-variable
'mh-tool-bar-letter-buttons
'(list ,@(mapcar (lambda (x) `(quote ,x)) letter-defaults))
"List of buttons to include in MH-Letter tool bar."
:group 'mh-tool-bar
:set #'mh-tool-bar-letter-buttons-set
:type '(set ,@(cl-loop for x in letter-buttons
for y in letter-docs
collect `(const :tag ,y ,x)))
;;:package-version '(MH-E "7.1")
))))