lisp/url/url-dired.el

   1 ;;; url-dired.el --- URL Dired minor mode
   2 ;; Author: $Author: fx $
   3 ;; Created: $Date: 2001/05/05 16:44:20 $
   4 ;; Version: $Revision: 1.3 $
   5 ;; Keywords: comm, files
   6
   7 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
   8 ;;; Copyright (c) 1993 - 1996 by William M. Perry <wmperry@cs.indiana.edu>
   9 ;;; Copyright (c) 1996 - 1999 Free Software Foundation, Inc.
  10 ;;;
  11 ;;; This file is part of GNU Emacs.
  12 ;;;
  13 ;;; GNU Emacs is free software; you can redistribute it and/or modify
  14 ;;; it under the terms of the GNU General Public License as published by
  15 ;;; the Free Software Foundation; either version 2, or (at your option)
  16 ;;; any later version.
  17 ;;;
  18 ;;; GNU Emacs is distributed in the hope that it will be useful,
  19 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 ;;; GNU General Public License for more details.
  22 ;;;
  23 ;;; You should have received a copy of the GNU General Public License
  24 ;;; along with GNU Emacs; see the file COPYING.  If not, write to the
  25 ;;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  26 ;;; Boston, MA 02111-1307, USA.
  27 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  28
  29 (autoload 'w3-fetch "w3")
  30 (autoload 'w3-open-local "w3")
  31 (autoload 'dired-get-filename "dired")
  32
  33 (defvar url-dired-minor-mode-map
  34   (let ((map (make-sparse-keymap)))
  35     (define-key map "\C-m" 'url-dired-find-file)
  36     (if (featurep 'xemacs)
  37         (define-key map [button2] 'url-dired-find-file-mouse)
  38       (define-key map [mouse-2] 'url-dired-find-file-mouse))
  39     map)
  40   "Keymap used when browsing directories.")
  41
  42 (defvar url-dired-minor-mode nil
  43   "Whether we are in url-dired-minor-mode")
  44
  45 (make-variable-buffer-local 'url-dired-minor-mode)
  46
  47 (defun url-dired-find-file ()
  48   "In dired, visit the file or directory named on this line, using Emacs-W3."
  49   (interactive)
  50   (let ((filename (dired-get-filename)))
  51     (cond ((string-match "/\\(.*@.*\\):\\(/.*\\)" filename)
  52            (w3-fetch (concat "file://" (match-string 1 filename) (match-string 2 filename))))
  53           (t
  54            (w3-open-local filename)))))
  55
  56 (defun url-dired-find-file-mouse (event)
  57   "In dired, visit the file or directory name you click on, using Emacs-W3."
  58   (interactive "@e")
  59   (mouse-set-point event)
  60   (url-dired-find-file))
  61
  62 (defun url-dired-minor-mode (&optional arg)
  63   "Minor mode for directory browsing with Emacs-W3."
  64   (interactive "P")
  65   (cond
  66    ((null arg)
  67     (setq url-dired-minor-mode (not url-dired-minor-mode)))
  68    ((equal 0 arg)
  69     (setq url-dired-minor-mode nil))
  70    (t
  71     (setq url-dired-minor-mode t))))
  72
  73 (if (not (fboundp 'add-minor-mode))
  74     (defun add-minor-mode (toggle name &optional keymap after toggle-fun)
  75       "Add a minor mode to `minor-mode-alist' and `minor-mode-map-alist'.
  76 TOGGLE is a symbol which is used as the variable which toggle the minor mode,
  77 NAME is the name that should appear in the modeline (it should be a string
  78 beginning with a space), KEYMAP is a keymap to make active when the minor
  79 mode is active, and AFTER is the toggling symbol used for another minor
  80 mode.  If AFTER is non-nil, then it is used to position the new mode in the
  81 minor-mode alists.  TOGGLE-FUN specifies an interactive function that
  82 is called to toggle the mode on and off; this affects what appens when
  83 button2 is pressed on the mode, and when button3 is pressed somewhere
  84 in the list of modes.  If TOGGLE-FUN is nil and TOGGLE names an
  85 interactive function, TOGGLE is used as the toggle function.
  86
  87 Example:  (add-minor-mode 'view-minor-mode \" View\" view-mode-map)"
  88       (if (not (assq toggle minor-mode-alist))
  89           (setq minor-mode-alist (cons (list toggle name) minor-mode-alist)))
  90       (if (and keymap (not (assq toggle minor-mode-map-alist)))
  91           (setq minor-mode-map-alist (cons (cons toggle keymap)
  92                                            minor-mode-map-alist)))))
  93
  94 (add-minor-mode 'url-dired-minor-mode " URL" url-dired-minor-mode-map)
  95
  96 (defun url-find-file-dired (dir)
  97   "\"Edit\" directory DIR, but with additional URL-friendly bindings."
  98   (interactive "DURL Dired (directory): ")
  99   (find-file dir)
 100   (url-dired-minor-mode t))
 101
 102 (provide 'url-dired)