Initial commit

transient-navigation.el

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+;;; transient-navigation.el --- Navigate with a transient mode  -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2013  Tom Willemse
+
+;; Author: Tom Willemse <tom@ryuslash.org>
+;; Keywords: convenience
+;; Version: 0.1.0
+
+;; This program 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 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;;
+
+;;; Code:
+
+(defvar transient-navigation-map
+  (let ((map (make-sparse-keymap)))
+    (define-key map (kbd "f") #'transient-forward-char)
+    (define-key map (kbd "b") #'transient-backward-char)
+    (define-key map (kbd "n") #'transient-next-line)
+    (define-key map (kbd "p") #'transient-previous-line)
+    map))
+
+(defmacro transnav-make-transient (func)
+  "Wrap FUNC with a transient map."
+  (let ((funcname (intern (concat "transient-" (symbol-name func)))))
+    `(defun ,funcname (&optional n)
+       (interactive)
+       (ignore n)
+       (call-interactively #',func)
+       (set-transient-map transient-navigation-map t))))
+
+(transnav-make-transient forward-char)
+(transnav-make-transient backward-char)
+(transnav-make-transient next-line)
+(transnav-make-transient previous-line)
+
+;;;###autoload
+(define-minor-mode transient-navigation-mode
+  "Remap certain navigation commands to ones with a transient map."
+  nil nil nil
+  (if transient-navigation-mode
+      (progn
+        (define-key global-map [remap forward-char] #'transient-forward-char)
+        (define-key global-map [remap backward-char] #'transient-backward-char)
+        (define-key global-map [remap next-line] #'transient-next-line)
+        (define-key global-map [remap previous-line] #'transient-previous-line))
+    (define-key global-map [remap transient-forward-char] #'forward-char)
+    (define-key global-map [remap transient-backward-char] #'backward-char)
+    (define-key global-map [remap transient-next-line] #'next-line)
+    (define-key global-map [remap transient-previous-line] #'previous-line)))
+
+(provide 'transient-navigation)
+;;; transient-navigation.el ends here