Mercurial > hg > xemacs-beta
annotate lisp/gpm.el @ 5894:23178aa71f8b
Define ALIGNOF using C11 and C++11 operators.
See <CAHCOHQmG51R61KwGUNY7T5t9tXxzbyg=aGijUKYstbE+wL2-6Q@mail.gmail.com> in
xemacs-patches for more information.
| author | Jerry James <james@xemacs.org> |
|---|---|
| date | Mon, 20 Apr 2015 15:09:11 -0600 |
| parents | 308d34e9f07d |
| children |
| rev | line source |
|---|---|
| 398 | 1 ;;; gpm.el --- Support the mouse when emacs run on a Linux console. |
| 2 | |
| 3 ;; Copyright (C) 1999 Free Software Foundation | |
| 4 | |
| 5 ;; Author: William Perry <wmperry@gnu.org> | |
| 6 ;; Keywords: mouse, terminals | |
| 7 | |
| 8 ;; This file is part of XEmacs. | |
| 9 | |
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10 ;; XEmacs is free software: you can redistribute it and/or modify it |
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11 ;; under the terms of the GNU General Public License as published by the |
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12 ;; Free Software Foundation, either version 3 of the License, or (at your |
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13 ;; option) any later version. |
| 398 | 14 |
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15 ;; XEmacs is distributed in the hope that it will be useful, but WITHOUT |
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16 ;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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17 ;; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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18 ;; for more details. |
| 398 | 19 |
| 20 ;; You should have received a copy of the GNU General Public License | |
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21 ;; along with XEmacs. If not, see <http://www.gnu.org/licenses/>. |
| 398 | 22 |
| 23 (defvar gpm-enabled-devices (make-hash-table :test 'eq | |
| 24 :size 13 | |
| 25 :weakness 'key) | |
| 26 "A hash table of devices with GPM currently turned on.") | |
| 502 | 27 |
| 398 | 28 (defun gpm-mode (&optional arg device) |
| 29 "Toggle GPM mouse mode. | |
| 30 With prefix arg, turn GPM mouse mode on if and only if arg is positive." | |
| 31 (interactive (list current-prefix-arg (selected-device))) | |
| 502 | 32 (with-fboundp 'gpm-enable |
| 33 (cond | |
| 34 ((null arg) ; Toggle | |
| 35 (if (gethash device gpm-enabled-devices) | |
| 36 (progn | |
| 37 (gpm-enable device nil) | |
| 38 (remhash device gpm-enabled-devices)) | |
| 39 (gpm-enable device t) | |
| 40 (puthash device t gpm-enabled-devices))) | |
| 41 ((> arg 0) ; Turn on | |
| 398 | 42 (gpm-enable device t) |
| 502 | 43 (puthash device t gpm-enabled-devices)) |
| 44 ((gethash device gpm-enabled-devices) ; Turn off | |
| 45 (gpm-enable device nil) | |
| 46 (remhash device gpm-enabled-devices))))) | |
| 398 | 47 |
| 48 (defun turn-on-gpm-mouse-tracking (&optional device) | |
| 49 ;; Enable mouse tracking on linux console | |
| 50 (gpm-mode 5 device)) | |
| 51 | |
| 52 (defun turn-off-gpm-mouse-tracking (&optional device) | |
| 53 ;; Disable mouse tracking on linux console | |
| 54 (gpm-mode -5 device)) | |
| 55 | |
| 502 | 56 (defun gpm-is-supported-p (device) |
| 57 "Returns non-nil if GPM is usable right now on DEVICE in this XEmacs session. | |
| 58 This checks whether GPM support was compiled in, TTY support was | |
| 59 compiled in, XEmacs is running on Linux, the current console/device is | |
| 60 TTY, and its terminal type has been set to `linux'." | |
| 61 (and (not noninteractive) ; Don't want to do this in batch mode | |
| 62 (fboundp 'gpm-enable) ; Must have C-level GPM support | |
| 63 (eq system-type 'linux) ; Must be running linux | |
| 64 (eq (device-type device) 'tty) ; on a tty | |
| 65 (equal "linux" (declare-fboundp ; an a linux terminal type | |
| 66 (console-tty-terminal-type (device-console device)))))) | |
| 67 | |
| 398 | 68 (defun gpm-create-device-hook (device) |
| 502 | 69 (if (gpm-is-supported-p device) |
| 398 | 70 (turn-on-gpm-mouse-tracking device))) |
| 71 | |
| 72 (defun gpm-delete-device-hook (device) | |
| 502 | 73 (if (gpm-is-supported-p device) |
| 398 | 74 (turn-off-gpm-mouse-tracking device))) |
| 75 | |
| 442 | 76 ;; Restore normal mouse behavior outside Emacs |
| 398 | 77 |
| 78 (add-hook 'suspend-hook 'turn-off-gpm-mouse-tracking) | |
| 79 (add-hook 'suspend-resume-hook 'turn-on-gpm-mouse-tracking) | |
| 80 (add-hook 'create-device-hook 'gpm-create-device-hook) | |
| 81 (add-hook 'delete-device-hook 'gpm-delete-device-hook) | |
| 82 | |
| 83 (provide 'gpm) |