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;;; geiser-menu.el -- menu and keymaps definition
;; Copyright (c) 2010 Jose Antonio Ortega Ruiz
;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the Modified BSD License. You should
;; have received a copy of the license along with this program. If
;; not, see <http://www.xfree86.org/3.3.6/COPYRIGHT2.html#5>.
;; Start date: Sat Jun 12, 2010 03:01
(require 'geiser-custom)
(require 'geiser-base)
;;; Customization:
(geiser-custom--defcustom geiser-global-menu-always-on-p nil
"Whether the Geiser menu is always visible."
:type 'boolean
:group 'geiser)
;;; Visibility:
(make-variable-buffer-local
(defvar geiser-menu--geiser-component-p nil))
(defun geiser-menu--visible-p ()
(or geiser-global-menu-always-on-p geiser-menu--geiser-component-p))
(defun geiser-menu--provide ()
(setq geiser-menu--geiser-component-p t))
;;; Top-level menu
(define-key global-map [menu-bar geiser]
`(menu-item "Geiser" ,(make-sparse-keymap "Geiser")
:visible (geiser-menu--visible-p)))
(add-to-list 'menu-bar-final-items 'geiser)
(defmacro geiser-menu--add-items-1 (ev keymap keys)
`(progn ,@(mapcar (lambda (kd)
(let* ((ev (if (listp ev) ev (list ev)))
(title (nth 0 kd))
(binding (nth 1 kd))
(cmd (nth 2 kd))
(hlp (nth 3 kd))
(item (make-symbol title))
(hlp (and (stringp hlp) (list :help hlp)))
(rest (or (and hlp (nthcdr 4 kd))
(nthcdr 3 kd)))
(binding (if (listp binding)
binding
(list binding))))
`(progn (define-key global-map
[menu-bar geiser ,@ev ,item]
'(menu-item ,title ,cmd ,@hlp ,@rest))
,@(and binding
`((put ',cmd
:advertised-binding
,(car binding))))
,@(mapcar (lambda (b)
`(define-key ,keymap ,b ',cmd))
binding))))
keys)))
(defmacro geiser-menu--add-items (keymap keys &optional visible)
(let ((keys (if visible
(mapcar (lambda (k) (append k `(:visible ,visible))) keys)
keys)))
`(geiser-menu--add-items-1 nil ,keymap ,(reverse keys))))
(defmacro geiser-menu--add-submenu (name keymap visible keys)
(let ((ev (make-symbol name)))
`(progn
(define-key global-map [menu-bar geiser ,ev]
(list 'menu-item ,name ,keymap :visible ',visible))
(geiser-menu--add-items-1 ,ev ,keymap ,keys))))
(put 'geiser-menu--add-submenu 'lisp-indent-function 3)
(put 'geiser-menu--add-items 'lisp-indent-function 1)
(defvar geiser-menu--line-counter 0)
(defun geiser-menu--add-line ()
(let ((line (make-symbol (format "line%s"
(setq geiser-menu--line-counter
(1+ geiser-menu--line-counter))))))
(define-key global-map `[menu-bar geiser ,line]
`(menu-item "--single-line"))))
(defmacro geiser-menu--add-custom (title group keymap visible)
`(geiser-menu--add-items ,keymap
((,title nil (lambda () (interactive) (customize-group ',group))))
,visible))
(defmacro geiser-menu--mode-toggle (title bindings mode keymap visible)
`(geiser-menu--add-items ,keymap
((,title ,bindings ,mode :button (:toggle . (and (boundp ',mode) ,mode))))
,visible))
(defmacro geiser-menu--defmenu (keymap visible &rest keys)
(let ((fs))
(dolist (kd keys)
(setq fs
(cons (cond ((eq 'line kd) '(geiser-menu--add-line))
((stringp (car kd))
`(geiser-menu--add-items ,keymap
,(list kd) ,visible))
((eq 'menu (car kd))
`(geiser-menu--add-submenu ,(cadr kd) ,keymap
,visible ,(cddr kd)))
((eq 'custom (car kd))
`(geiser-menu--add-custom ,(nth 1 kd)
,(nth 2 kd)
,keymap
,visible))
((eq 'mode (car kd))
`(geiser-menu--mode-toggle ,(nth 1 kd)
,(nth 2 kd)
,(nth 3 kd)
,keymap
,visible))
(t (error "Bad form: %s" kd)))
fs)))
`(progn ,@fs)))
(put 'geiser-menu--defmenu 'lisp-indent-function 2)
;;; Implementation support
(define-key global-map [menu-bar geiser custom]
(cons "Customize" (make-sparse-keymap "Customize")))
(defun geiser-menu--add-global-custom (title group)
(define-key global-map `[menu-bar geiser custom ,(make-symbol title)]
(cons title `(lambda () (interactive) (customize-group ',group)))))
(defun geiser-menu--add-impl (name runner switcher)
(let ((title (capitalize (format "%s" name)))
(group (intern (format "geiser-%s" name))))
(define-key global-map `[menu-bar geiser run ,name] (cons title runner))
(define-key global-map `[menu-bar geiser switch ,name]
(cons title switcher))
(geiser-menu--add-global-custom title group)))
;;; Permanent entries
(geiser-menu--add-global-custom "Geiser" 'geiser)
(define-key global-map [menu-bar geiser switch]
(cons "Switch to" (make-sparse-keymap "Switch to")))
(define-key global-map [menu-bar geiser run]
(cons "Run" (make-sparse-keymap "Run")))
(geiser-menu--add-line)
(provide 'geiser-menu)
;;; geiser-menu.el ends here
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