mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-16 09:50:25 +00:00
89 lines
3.3 KiB
EmacsLisp
89 lines
3.3 KiB
EmacsLisp
;;; t-mouse.el --- mouse support within the text terminal
|
||
|
||
;; Author: Nick Roberts <nickrob@gnu.org>
|
||
;; Maintainer: emacs-devel@gnu.org
|
||
;; Keywords: mouse gpm linux
|
||
|
||
;; Copyright (C) 1994-1995, 1998, 2006-2015 Free Software Foundation,
|
||
;; Inc.
|
||
|
||
;; This file is part of GNU Emacs.
|
||
|
||
;; GNU Emacs 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.
|
||
|
||
;; GNU Emacs 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
|
||
|
||
;;; Commentary:
|
||
|
||
;; This package provides access to mouse event as reported by the gpm-Linux
|
||
;; package. It tries to reproduce the functionality offered by Emacs under X.
|
||
;; The "gpm" server runs under Linux, so this package is rather
|
||
;; Linux-dependent.
|
||
|
||
;; The file, t-mouse.el was originally written by Alessandro Rubini and Ian T
|
||
;; Zimmerman, and Emacs communicated with gpm through a client program called
|
||
;; mev. Now the interface with gpm is directly through a Unix socket, so this
|
||
;; file is reduced to a single minor mode macro call.
|
||
|
||
;;
|
||
|
||
;;; Code:
|
||
|
||
;; Prevent warning when compiling in an Emacs without gpm support.
|
||
(declare-function gpm-mouse-start "term.c" ())
|
||
|
||
(defun gpm-mouse-enable ()
|
||
"Try to enable gpm mouse support on the current terminal."
|
||
(let ((activated nil))
|
||
(unwind-protect
|
||
(progn
|
||
(unless (fboundp 'gpm-mouse-start)
|
||
(error "Emacs must be built with Gpm to use this mode"))
|
||
(when gpm-mouse-mode
|
||
(gpm-mouse-start)
|
||
(set-terminal-parameter nil 'gpm-mouse-active t)
|
||
(setq activated t)))
|
||
;; If something failed to turn it on, try to turn it off as well,
|
||
;; just in case.
|
||
(unless activated (gpm-mouse-disable)))))
|
||
|
||
(defun gpm-mouse-disable ()
|
||
"Try to disable gpm mouse support on the current terminal."
|
||
(when (fboundp 'gpm-mouse-stop)
|
||
(gpm-mouse-stop))
|
||
(set-terminal-parameter nil 'gpm-mouse-active nil))
|
||
|
||
;;;###autoload
|
||
(define-obsolete-function-alias 't-mouse-mode 'gpm-mouse-mode "23.1")
|
||
;;;###autoload
|
||
(define-minor-mode gpm-mouse-mode
|
||
"Toggle mouse support in GNU/Linux consoles (GPM Mouse mode).
|
||
With a prefix argument ARG, enable GPM Mouse mode if ARG is
|
||
positive, and disable it otherwise. If called from Lisp, enable
|
||
the mode if ARG is omitted or nil.
|
||
|
||
This allows the use of the mouse when operating on a GNU/Linux console,
|
||
in the same way as you can use the mouse under X11.
|
||
It relies on the `gpm' daemon being activated."
|
||
:global t :group 'mouse :init-value t
|
||
(dolist (terminal (terminal-list))
|
||
(when (and (eq t (terminal-live-p terminal))
|
||
(not (eq gpm-mouse-mode
|
||
(terminal-parameter terminal 'gpm-mouse-active))))
|
||
;; Simulate selecting a terminal by selecting one of its frames ;-(
|
||
(with-selected-frame (car (frames-on-display-list terminal))
|
||
(if gpm-mouse-mode (gpm-mouse-enable) (gpm-mouse-disable))))))
|
||
|
||
(provide 't-mouse)
|
||
|
||
;;; t-mouse.el ends here
|