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popup menu code

From: Bruce Ingalls
Subject: popup menu code
Date: Thu, 23 Oct 2003 20:27:24 GMT
User-agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.4) Gecko/20030701

;;Thanks to your help, I made the following improvements to my popup menu.
;;However, because I must put when(mark-active) clauses in my code, this
;;prevents the keybindings from showing up.
;;Any way around this?
;;There are multiple keybindings to Copy. I'd rather not see [f17] (from memory)
;;Are hints available to show C-Ins, M-w or C-c, if cua.el is loaded?
;;Also note that this code does not work under XEmacs.
;;Finally, I suspect that my code for menu separators is not the best

(defvar right-popup-menu
  (let ((menu (make-sparse-keymap "Commands")))
(define-key menu [dabbrev-expand] (cons "Complete word" 'dabbrev-expand))
    (define-key menu [undo] (cons "Undo" 'undo))
    (define-key menu [redo] (cons "Redo" 'redo))

    (define-key menu [--] (cons "--" 'nil)) ;separator

;;Unfortunately, keybinding is not to when() clause, which must necessarily
;;surround the function
    (define-key menu [kill-region]
      (cons "Cut"
            '(when (and mark-active (not buffer-read-only)
                       (call-interactively 'kill-region)))))
    (define-key menu [yank]
      (cons "Paste"
            '(when (and mark-active (not buffer-read-only) 'yank))))
    (define-key menu [copy-region-as-kill]
      (cons "Copy" '(when mark-active 'copy-region-as-kill)))

;;    (define-key menu [-] (cons "-" 'nil)) ;separator
;;    (define-key menu [emacro-help]
;;      (cons (concat "EMacro v" emacro-version) 'emacro-help))

(defun right-popup ()                   ;event
  "Run the command selected from `right-popup-menu'."
(call-interactively (or (car (x-popup-menu t right-popup-menu)) 'ignore)))

(global-set-key [mouse-3] 'right-popup)

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