view lisp/gpm.el @ 800:a5954632b187

[xemacs-hg @ 2002-03-31 08:27:14 by ben] more fixes, first crack at finishing behavior implementation TODO.ben-mule-21-5: Update. configure.in: Fix for new error-checking types. make-mswin-unicode.pl: Don't be fucked up by CRLF. Output code to force errors when nonintercepted Windows calls issued. behavior.el, dumped-lisp.el, menubar-items.el: Add support for saving using custom. Load into a dumped XEmacs. Correct :title to :short-doc in accordance with behavior-defs.el. Add a submenu under Options for turning on/off behaviors. cl-macs.el: Properly document `loop'. Fix a minor bug in keymap iteration and add support for bit-vector iteration. lisp-mode.el: Rearrange and add items for macro expanding. menubar-items.el: Document connection between these two functions. window.el: Port stuff from GNU 21.1. config.inc.samp, xemacs.mak: Separate out and add new variable for controlling error-checking. s/windowsnt.h: Use new ERROR_CHECK_ALL; not related to DEBUG_XEMACS. alloc.c, backtrace.h, buffer.c, buffer.h, bytecode.c, callproc.c, casetab.c, charset.h, chartab.c, cmdloop.c, config.h.in, console-msw.c, console-stream.c, console-tty.c, console.c, console.h, data.c, device-msw.c, device.c, device.h, dired-msw.c, dired.c, dumper.c, editfns.c, eldap.c, elhash.c, emacs.c, eval.c, event-Xt.c, event-gtk.c, event-msw.c, event-stream.c, events.c, extents.c, faces.c, file-coding.c, file-coding.h, fileio.c, frame-msw.c, frame.c, frame.h, glyphs-gtk.c, glyphs-msw.c, glyphs-shared.c, glyphs-widget.c, glyphs-x.c, glyphs.c, glyphs.h, insdel.c, intl-auto-encap-win32.c, intl-auto-encap-win32.h, intl-encap-win32.c, intl-win32.c, keymap.c, lisp-union.h, lisp.h, lread.c, lrecord.h, lstream.c, lstream.h, macros.c, marker.c, md5.c, menubar-x.c, menubar.c, mule-coding.c, ntproc.c, objects-gtk.c, objects-msw.c, objects-x.c, objects.c, opaque.c, print.c, process-nt.c, process-unix.c, process.c, rangetab.c, redisplay-msw.c, redisplay-output.c, redisplay.c, regex.c, scrollbar-msw.c, select-msw.c, signal.c, specifier.c, specifier.h, symbols.c, sysdep.c, syswindows.h, text.c, text.h, toolbar-msw.c, tooltalk.c, ui-gtk.c, unicode.c, window.c: Redo error-checking macros: ERROR_CHECK_TYPECHECK -> ERROR_CHECK_TYPES, ERROR_CHECK_CHARBPOS -> ERROR_CHECK_TEXT, add ERROR_CHECK_DISPLAY, ERROR_CHECK_STRUCTURES. Document these in config.h.in. Fix code to follow docs. Fix *_checking_assert() in accordance with new names. Attempt to fix periodic redisplay crash freeing display line structures. Add first implementation of sledgehammer redisplay check. Redo print_*() to use write_fmt_string(), write_fmt_string_lisp(). Fix bug in md5 handling. Rename character-to-unicode to char-to-unicode; same for unicode-to-char{acter}. Move chartab documentation to `make-char-table'. Some header cleanup. Clean up remaining places where nonintercepted Windows calls are being used. automated/mule-tests.el: Fix for new Unicode support.
author ben
date Sun, 31 Mar 2002 08:30:17 +0000
parents 023b83f4e54b
children 308d34e9f07d
line wrap: on
line source

;;; gpm.el --- Support the mouse when emacs run on a Linux console.

;; Copyright (C) 1999 Free Software Foundation

;; Author: William Perry <wmperry@gnu.org>
;; Keywords: mouse, terminals

;; This file is part of XEmacs.

;; XEmacs 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 2, or (at your option)
;; any later version.

;; XEmacs 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 XEmacs; see the file COPYING.  If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

(defvar gpm-enabled-devices (make-hash-table :test 'eq
					     :size 13
					     :weakness 'key)
  "A hash table of devices with GPM currently turned on.")
 
(defun gpm-mode (&optional arg device)
  "Toggle GPM mouse mode.
With prefix arg, turn GPM mouse mode on if and only if arg is positive."
  (interactive (list current-prefix-arg (selected-device)))
  (with-fboundp 'gpm-enable
    (cond
     ((null arg)				; Toggle
      (if (gethash device gpm-enabled-devices)
	  (progn
	    (gpm-enable device nil)
	    (remhash device gpm-enabled-devices))
	(gpm-enable device t)
	(puthash device t gpm-enabled-devices)))
     ((> arg 0)				; Turn on
      (gpm-enable device t)
      (puthash device t gpm-enabled-devices))
     ((gethash device gpm-enabled-devices) ; Turn off
      (gpm-enable device nil)
      (remhash device gpm-enabled-devices)))))

(defun turn-on-gpm-mouse-tracking (&optional device)
  ;; Enable mouse tracking on linux console
  (gpm-mode 5 device))

(defun turn-off-gpm-mouse-tracking (&optional device)
  ;; Disable mouse tracking on linux console
  (gpm-mode -5 device))

(defun gpm-is-supported-p (device)
  "Returns non-nil if GPM is usable right now on DEVICE in this XEmacs session.
This checks whether GPM support was compiled in, TTY support was
compiled in, XEmacs is running on Linux, the current console/device is
TTY, and its terminal type has been set to `linux'."
  (and (not noninteractive)	; Don't want to do this in batch mode
       (fboundp 'gpm-enable)	; Must have C-level GPM support
       (eq system-type 'linux)	; Must be running linux
       (eq (device-type device) 'tty) ; on a tty
       (equal "linux" (declare-fboundp ; an a linux terminal type
		       (console-tty-terminal-type (device-console device))))))
  
(defun gpm-create-device-hook (device)
  (if (gpm-is-supported-p device)
      (turn-on-gpm-mouse-tracking device)))

(defun gpm-delete-device-hook (device)
  (if (gpm-is-supported-p device)
      (turn-off-gpm-mouse-tracking device)))

;; Restore normal mouse behavior outside Emacs

(add-hook 'suspend-hook 'turn-off-gpm-mouse-tracking)
(add-hook 'suspend-resume-hook 'turn-on-gpm-mouse-tracking)
(add-hook 'create-device-hook 'gpm-create-device-hook)
(add-hook 'delete-device-hook 'gpm-delete-device-hook)

(provide 'gpm)