Merge from emacs--rel--22

[gnu-emacs] / lisp / emacs-lisp / easymenu.el

diff --git a/lisp/emacs-lisp/easymenu.el b/lisp/emacs-lisp/easymenu.el
index 06cafb17e61ee80e2d075b1a0c1057b7c1a1f187..b802d8acd43c19d5ae1bfd229b61a73e5816dcd0 100644 (file)
--- a/lisp/emacs-lisp/easymenu.el
+++ b/lisp/emacs-lisp/easymenu.el
@@ -1,7 +1,7 @@
 ;;; easymenu.el --- support the easymenu interface for defining a menu
 
 ;; Copyright (C) 1994, 1996, 1998, 1999, 2000, 2001, 2002, 2003,
-;;   2004, 2005, 2006 Free Software Foundation, Inc.
+;;   2004, 2005, 2006, 2007 Free Software Foundation, Inc.
 
 ;; Keywords: emulations
 ;; Author: Richard Stallman <rms@gnu.org>
@@ -10,7 +10,7 @@
 
 ;; GNU Emacs 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 2, or (at your option)
+;; the Free Software Foundation; either version 3, or (at your option)
 ;; any later version.
 
 ;; GNU Emacs is distributed in the hope that it will be useful,
@@ -152,6 +152,21 @@ A menu item can be a list with the same format as MENU.  This is a submenu."
      ,(if symbol `(defvar ,symbol nil ,doc))
      (easy-menu-do-define (quote ,symbol) ,maps ,doc ,menu)))
 
+(defun easy-menu-binding (menu &optional item-name)
+  "Return a binding suitable to pass to `define-key'.
+This is expected to be bound to a mouse event."
+  ;; Under Emacs this is almost trivial, whereas under XEmacs this may
+  ;; involve defining a function that calls popup-menu.
+  (let ((props (if (symbolp menu)
+                   (prog1 (get menu 'menu-prop)
+                     (setq menu (symbol-function menu))))))
+    (cons 'menu-item
+          (cons (or item-name
+                    (if (keymapp menu)
+                        (keymap-prompt menu))
+                    "")
+                (cons menu props)))))
+
 ;;;###autoload
 (defun easy-menu-do-define (symbol maps doc menu)
   ;; We can't do anything that might differ between Emacs dialects in
@@ -173,15 +188,10 @@ A menu item can be a list with the same format as MENU.  This is a submenu."
                                       'identity)
                                   (symbol-function ,symbol)))
                             ,symbol)))))
-    (mapcar (lambda (map)
-             (define-key map (vector 'menu-bar (easy-menu-intern (car menu)))
-               (cons 'menu-item
-                     (cons (car menu)
-                           (if (not (symbolp keymap))
-                               (list keymap)
-                             (cons (symbol-function keymap)
-                                   (get keymap 'menu-prop)))))))
-           (if (keymapp maps) (list maps) maps))))
+    (dolist (map (if (keymapp maps) (list maps) maps))
+      (define-key map
+        (vector 'menu-bar (easy-menu-intern (car menu)))
+        (easy-menu-binding keymap (car menu))))))
 
 (defun easy-menu-filter-return (menu &optional name)
  "Convert MENU to the right thing to return from a menu filter.
@@ -249,10 +259,6 @@ possibly preceded by keyword pairs as described in `easy-menu-define'."
 (defvar easy-menu-button-prefix
   '((radio . :radio) (toggle . :toggle)))
 
-(defun easy-menu-do-add-item (menu item &optional before)
-  (setq item (easy-menu-convert-item item))
-  (easy-menu-define-key menu (easy-menu-intern (car item)) (cdr item) before))
-
 (defvar easy-menu-converted-items-table (make-hash-table :test 'equal))
 
 (defun easy-menu-convert-item (item)
@@ -269,7 +275,7 @@ would always fail because the key is `equal' but not `eq'."
 (defun easy-menu-convert-item-1 (item)
   "Parse an item description and convert it to a menu keymap element.
 ITEM defines an item as in `easy-menu-define'."
-  (let (name command label prop remove help)
+  (let (name command label prop remove)
     (cond
      ((stringp item)                   ; An item or separator.
       (setq label item))
@@ -536,10 +542,11 @@ earlier by `easy-menu-define' or `easy-menu-create-menu'."
                 (setq item (symbol-value item))))
        ;; Item is a keymap, find the prompt string and use as item name.
        (setq item (cons (keymap-prompt item) item)))
-    (easy-menu-do-add-item map item before)))
+    (setq item (easy-menu-convert-item item))
+    (easy-menu-define-key map (easy-menu-intern (car item)) (cdr item) before)))
 
 (defun easy-menu-item-present-p (map path name)
-  "In submenu of MAP with path PATH, return non-nil iff item NAME is present.
+  "In submenu of MAP with path PATH, return non-nil if item NAME is present.
 MAP and PATH are defined as in `easy-menu-add-item'.
 NAME should be a string, the name of the element to be looked for."
   (easy-menu-return-item (easy-menu-get-map map path) name))
@@ -615,7 +622,8 @@ In some cases we use that to select between the local and global maps."
        (catch 'found
          (if (and map (symbolp map) (not (keymapp map)))
              (setq map (symbol-value map)))
-         (let ((maps (if map (list map) (current-active-maps))))
+         (let ((maps (if map (if (keymapp map) (list map) map)
+                       (current-active-maps))))
            ;; Look for PATH in each map.
            (unless map (push 'menu-bar path))
            (dolist (name path)