;;; ehelp.el --- bindings for electric-help mode -*- lexical-binding: t -*-
-;; Copyright (C) 1986, 1995, 2000-2011 Free Software Foundation, Inc.
+;; Copyright (C) 1986, 1995, 2000-2013 Free Software Foundation, Inc.
;; Author: Richard Mlynarik
;; (according to ack.texi and authors.el)
(defvar electric-help-map
(let ((map (make-keymap)))
+ ;; FIXME fragile. Should derive from help-mode-map in a smarter way.
+ (set-keymap-parent map button-buffer-map)
;; allow all non-self-inserting keys - search, scroll, etc, but
;; let M-x and C-x exit ehelp mode and retain buffer:
(suppress-keymap map)
(define-key map (char-to-string help-char) 'electric-help-help)
(define-key map "?" 'electric-help-help)
(define-key map " " 'scroll-up)
+ (define-key map [?\S-\ ] 'scroll-down)
(define-key map "\^?" 'scroll-down)
(define-key map "." 'beginning-of-buffer)
(define-key map "<" 'beginning-of-buffer)
(setq buffer-read-only t)
(setq electric-help-orig-major-mode major-mode)
(setq mode-name "Help")
- (setq major-mode 'help)
+ (setq major-mode 'help-mode)
(setq mode-line-buffer-identification '(" Help: %b"))
(use-local-map electric-help-map)
(add-hook 'mouse-leave-buffer-hook 'electric-help-retain)
(replace-buffer-in-windows buffer)
;; must do this outside of save-window-excursion
(bury-buffer buffer))
- (eval electric-help-form-to-execute))))
+ (if (functionp electric-help-form-to-execute)
+ (funcall electric-help-form-to-execute)
+ (eval electric-help-form-to-execute)))))
(defun electric-help-command-loop ()
(catch 'exit
;; continues with execute-extended-command.
(defun electric-help-execute-extended (_prefixarg)
(interactive "p")
- (setq electric-help-form-to-execute '(execute-extended-command nil))
+ (setq electric-help-form-to-execute
+ (lambda () (execute-extended-command nil)))
(electric-help-retain))
;; This is to be buond to C-x in ehelp mode. Retains ehelp buffer and then
;; continues with ctrl-x prefix.
(defun electric-help-ctrl-x-prefix (_prefixarg)
(interactive "p")
- (setq electric-help-form-to-execute '(progn (message nil) (setq unread-command-char ?\C-x)))
+ (setq electric-help-form-to-execute
+ (lambda ()
+ (message nil)
+ (setq unread-command-events
+ (append unread-command-events '(?\C-x)))))
(electric-help-retain))
\f