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blob 93607af79aaf26df2a9fd6791aa999773de14aea 3602 bytes (raw)
name: lisp/t-mouse.el 	 # note: path name is non-authoritative(*)

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;;; t-mouse.el --- mouse support within the text terminal -*- lexical-binding: t -*-

;; Author: Nick Roberts <nickrob@gnu.org>
;; Maintainer: emacs-devel@gnu.org
;; Keywords: mouse gpm linux

;; Copyright (C) 1994-1995, 1998, 2006-2016 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.

;;
\f
;;; 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.

Note that when `gpm-mouse-mode' is enabled, you cannot use the
mouse to transfer text between Emacs and other programs which use
GPM.  This is due to limitations in GPM and the Linux kernel."
  :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

debug log:

solving 93607af ...
found 93607af in https://yhetil.org/emacs-devel/20160813181832.GA15753@holos.localdomain/
found 5ea1bdd in https://git.savannah.gnu.org/cgit/emacs.git
preparing index
index prepared:
100644 5ea1bdd3449cdd5ec3fadcfa5777e160c4be896c	lisp/t-mouse.el

applying [1/1] https://yhetil.org/emacs-devel/20160813181832.GA15753@holos.localdomain/
diff --git a/lisp/t-mouse.el b/lisp/t-mouse.el
index 5ea1bdd..93607af 100644

Checking patch lisp/t-mouse.el...
Applied patch lisp/t-mouse.el cleanly.

index at:
100644 93607af79aaf26df2a9fd6791aa999773de14aea	lisp/t-mouse.el

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