;;; lmenu.el --- emulate Lucid's menubar support
-;; Keywords: emulations
+;; Copyright (C) 1992, 1993, 1994, 1997 Free Software Foundation, Inc.
-;; Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
+;; Keywords: emulations obsolete
;; This file is part of GNU Emacs.
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to
-;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+;; along with GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+;;; Commentary:
;;; Code:
;; Arrange to use current-menubar to set up part of the menu bar.
+(defvar current-menubar)
+
(setq recompute-lucid-menubar 'recompute-lucid-menubar)
(defun recompute-lucid-menubar ()
(define-key lucid-menubar-map [menu-bar]
(cons (cons 'current-menubar lucid-menubar-map)
minor-mode-map-alist)))
+;; XEmacs compatibility
(defun set-menubar-dirty-flag ()
(force-mode-line-update)
(setq lucid-menu-bar-dirty-flag t))
(defvar add-menu-item-count 0)
+;; This is a variable whose value is always nil.
+(defvar make-lucid-menu-keymap-disable nil)
+
;; Return a menu keymap corresponding to a Lucid-style menu list
;; MENU-ITEMS, and with name MENU-NAME.
(defun make-lucid-menu-keymap (menu-name menu-items)
;; since the define-key loop reverses them again.
(setq menu-items (reverse menu-items))
(while menu-items
- (let* ((item (car menu-items))
- (callback (if (vectorp item) (aref item 1)))
- command enabler name)
+ (let ((item (car menu-items))
+ command name callback)
(cond ((stringp item)
(setq command nil)
(setq name (if (string-match "^-+$" item) "" item)))
(setq name (car item)))
((vectorp item)
(setq command (make-symbol (format "menu-function-%d"
- add-menu-item-count)))
- (setq enabler (make-symbol (format "menu-function-%d-enabler"
- add-menu-item-count)))
- (setq add-menu-item-count (1+ add-menu-item-count))
- (put command 'menu-enable enabler)
- (set enabler (aref item 2))
- (setq name (aref item 0))
+ add-menu-item-count))
+ add-menu-item-count (1+ add-menu-item-count)
+ name (aref item 0)
+ callback (aref item 1))
(if (symbolp callback)
(fset command callback)
- (fset command (list 'lambda () '(interactive) callback)))))
+ (fset command (list 'lambda () '(interactive) callback)))
+ (put command 'menu-alias t)
+ (let ((i 2))
+ (while (< i (length item))
+ (cond
+ ((eq (aref item i) ':active)
+ (put command 'menu-enable
+ (or (aref item (1+ i))
+ 'make-lucid-menu-keymap-disable))
+ (setq i (+ 2 i)))
+ ((eq (aref item i) ':suffix)
+ ;; unimplemented
+ (setq i (+ 2 i)))
+ ((eq (aref item i) ':keys)
+ ;; unimplemented
+ (setq i (+ 2 i)))
+ ((eq (aref item i) ':style)
+ ;; unimplemented
+ (setq i (+ 2 i)))
+ ((eq (aref item i) ':selected)
+ ;; unimplemented
+ (setq i (+ 2 i)))
+ ((and (symbolp (aref item i))
+ (= ?: (string-to-char (symbol-name (aref item i)))))
+ (error "Unrecognized menu item keyword: %S"
+ (aref item i)))
+ ((= i 2)
+ ;; old-style format: active-p &optional suffix
+ (put command 'menu-enable
+ (or (aref item i) 'make-lucid-menu-keymap-disable))
+ ;; suffix is unimplemented
+ (setq i (length item)))
+ (t
+ (error "Unexpected menu item value: %S"
+ (aref item i))))))))
(if (null command)
;; Handle inactive strings specially--allow any number
;; of identical ones.
(setcdr menu (cons (list nil name) (cdr menu)))
- (if name
+ (if name
(define-key menu (vector (intern name)) (cons name command)))))
(setq menu-items (cdr menu-items)))
menu))
-(defun popup-menu (menu-desc)
- "Pop up the given menu.
-A menu is a list of menu items, strings, and submenus.
-
-The first element of a menu must be a string, which is the name of the
-menu. This is the string that will be displayed in the parent menu, if
-any. For toplevel menus, it is ignored. This string is not displayed
-in the menu itself.
-
-A menu item is a vector of three or four elements:
-
- - the name of the menu item (a string);
- - the `callback' of that item;
- - whether this item is active (selectable);
- - and an optional string to append to the name.
-
-If the `callback' of a menu item is a symbol, then it must name a command.
-It will be invoked with `call-interactively'. If it is a list, then it is
-evaluated with `eval'.
-
-The fourth element of a menu item is a convenient way of adding the name
-of a command's ``argument'' to the menu, like ``Kill Buffer NAME''.
-
-If an element of a menu is a string, then that string will be presented in
-the menu as unselectable text.
-
-If an element of a menu is a string consisting solely of hyphens, then that
-item will be presented as a solid horizontal line.
-
-If an element of a menu is a list, it is treated as a submenu. The name of
-that submenu (the first element in the list) will be used as the name of the
-item representing this menu on the parent.
-
-The syntax, more precisely:
-
- form := <something to pass to `eval'>
- command := <a symbol or string, to pass to `call-interactively'>
- callback := command | form
- active-p := <t or nil, whether this thing is selectable>
- text := <string, non selectable>
- name := <string>
- argument := <string>
- menu-item := '[' name callback active-p [ argument ] ']'
- menu := '(' name [ menu-item | menu | text ]+ ')'
-"
- (let ((menu (make-lucid-menu-keymap (car menu-desc) (cdr menu-desc)))
- (pos (mouse-pixel-position))
- answer cmd)
- (while menu
- (setq answer (x-popup-menu (list (list (nth 1 pos) (nthcdr 2 pos))
- (car pos))
- menu))
- (setq cmd (lookup-key menu (vector answer)))
- (setq menu nil)
- (and cmd
- (if (keymapp cmd)
- (setq menu cmd)
- (call-interactively cmd))))))
-
+;; XEmacs compatibility function
(defun popup-dialog-box (data)
"Pop up a dialog box.
A dialog box description is a list.
It will be invoked with `call-interactively'. If it is a list, then it is
evaluated with `eval'.
-One (and only one) of the buttons may be `nil'. This marker means that all
+One (and only one) of the buttons may be nil. This marker means that all
following buttons should be flushright instead of flushleft.
The syntax, more precisely:
(let ((name (car data))
(tail (cdr data))
converted
- choice)
+ choice meaning)
(while tail
(if (null (car tail))
(setq converted (cons nil converted))
converted))))
(setq tail (cdr tail)))
(setq choice (x-popup-dialog t (cons name (nreverse converted))))
- (setq meaning (assq choice converted))
- (if meaning
- (if (symbolp (cdr meaning))
- (call-interactively (cdr meaning))
- (eval (cdr meaning))))))
+ (if choice
+ (if (symbolp choice)
+ (call-interactively choice)
+ (eval choice)))))
\f
-;; This is empty because the usual elements of the menu bar
+;; This is empty because the usual elements of the menu bar
;; are provided by menu-bar.el instead.
;; It would not make sense to duplicate them here.
(defconst default-menubar nil)
+;; XEmacs compatibility
(defun set-menubar (menubar)
"Set the default menubar to be menubar."
(setq-default current-menubar (copy-sequence menubar))
(set-menubar-dirty-flag))
+;; XEmacs compatibility
(defun set-buffer-menubar (menubar)
"Set the buffer-local menubar to be menubar."
(make-local-variable 'current-menubar)
\f
;;; menu manipulation functions
+;; XEmacs compatibility
(defun find-menu-item (menubar item-path-list &optional parent)
"Searches MENUBAR for item given by ITEM-PATH-LIST.
Returns (ITEM . PARENT), where PARENT is the immediate parent of
(cons result parent)))))
+;; XEmacs compatibility
(defun disable-menu-item (path)
"Make the named menu item be unselectable.
-PATH is a list of strings which identify the position of the menu item in
+PATH is a list of strings which identify the position of the menu item in
the menu hierarchy. (\"File\" \"Save\") means the menu item called \"Save\"
-under the toplevel \"File\" menu. (\"Menu\" \"Foo\" \"Item\") means the
+under the toplevel \"File\" menu. (\"Menu\" \"Foo\" \"Item\") means the
menu item called \"Item\" under the \"Foo\" submenu of \"Menu\"."
(let* ((menubar current-menubar)
(pair (find-menu-item menubar path))
item))
+;; XEmacs compatibility
(defun enable-menu-item (path)
"Make the named menu item be selectable.
-PATH is a list of strings which identify the position of the menu item in
+PATH is a list of strings which identify the position of the menu item in
the menu hierarchy. (\"File\" \"Save\") means the menu item called \"Save\"
-under the toplevel \"File\" menu. (\"Menu\" \"Foo\" \"Item\") means the
+under the toplevel \"File\" menu. (\"Menu\" \"Foo\" \"Item\") means the
menu item called \"Item\" under the \"Foo\" submenu of \"Menu\"."
(let* ((menubar current-menubar)
(pair (find-menu-item menubar path))
(car (find-menu-item (cdr so-far) (list (car rest))))))
(or menu
(let ((rest2 so-far))
+ (or rest2
+ (error "Trying to modify a menu that doesn't exist"))
(while (and (cdr rest2) (car (cdr rest2)))
(setq rest2 (cdr rest2)))
(setcdr rest2
- (nconc (list (setq menu (list (car rest))))
- (cdr rest2)))))
+ (nconc (list (setq menu (list (car rest))))
+ (cdr rest2)))))
(setq so-far menu)
(setq rest (cdr rest)))))
(or menu (setq menu menubar))
(set-menubar-dirty-flag)
item))
+;; XEmacs compatibility
(defun add-menu-item (menu-path item-name function enabled-p &optional before)
"Add a menu item to some menu, creating the menu first if necessary.
If the named item exists already, it is changed.
ITEM-NAME is the string naming the menu item to be added.
FUNCTION is the command to invoke when this menu item is selected.
If it is a symbol, then it is invoked with `call-interactively', in the same
- way that functions bound to keys are invoked. If it is a list, then the
+ way that functions bound to keys are invoked. If it is a list, then the
list is simply evaluated.
ENABLED-P controls whether the item is selectable or not.
BEFORE, if provided, is the name of a menu item before which this item should
(add-menu-item-1 t menu-path item-name function enabled-p before))
+;; XEmacs compatibility
(defun delete-menu-item (path)
"Remove the named menu item from the menu hierarchy.
-PATH is a list of strings which identify the position of the menu item in
+PATH is a list of strings which identify the position of the menu item in
the menu hierarchy. (\"File\" \"Save\") means the menu item called \"Save\"
-under the toplevel \"File\" menu. (\"Menu\" \"Foo\" \"Item\") means the
+under the toplevel \"File\" menu. (\"Menu\" \"Foo\" \"Item\") means the
menu item called \"Item\" under the \"Foo\" submenu of \"Menu\"."
(let* ((menubar current-menubar)
(pair (find-menu-item menubar path))
item)))
+;; XEmacs compatibility
(defun relabel-menu-item (path new-name)
"Change the string of the specified menu item.
-PATH is a list of strings which identify the position of the menu item in
+PATH is a list of strings which identify the position of the menu item in
the menu hierarchy. (\"File\" \"Save\") means the menu item called \"Save\"
-under the toplevel \"File\" menu. (\"Menu\" \"Foo\" \"Item\") means the
+under the toplevel \"File\" menu. (\"Menu\" \"Foo\" \"Item\") means the
menu item called \"Item\" under the \"Foo\" submenu of \"Menu\".
NEW-NAME is the string that the menu item will be printed as from now on."
(or (stringp new-name)
(set-menubar-dirty-flag)
item))
+;; XEmacs compatibility
(defun add-menu (menu-path menu-name menu-items &optional before)
"Add a menu to the menubar or one of its submenus.
If the named menu exists already, it is changed.
Each menu item should be a vector of three elements:
- a string, the name of the menu item;
- a symbol naming a command, or a form to evaluate;
- - and t or nil, whether this item is selectable.
+ - and a form whose value determines whether this item is selectable.
BEFORE, if provided, is the name of a menu before which this menu should
be added, if this menu is not on its parent already. If the menu is already
present, it will not be moved."
\f
(provide 'lmenu)
+;;; arch-tag: 7051c396-2837-435a-ae11-b2d2e2af8fc1
;;; lmenu.el ends here