scratch/edwin/xterm.scm

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#| -*-Scheme-*-
Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
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2017, 2018, 2019, 2020 Massachusetts Institute of Technology
This file is part of MIT/GNU Scheme.
MIT/GNU Scheme 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 of the License, or (at
your option) any later version.
MIT/GNU Scheme 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 MIT/GNU Scheme; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301,
USA.
|#
;;;; X Terminal
;;; Package: (edwin screen x-screen)
;;;; An X display type that autoloads the x11-screen plugin.
(define x-display-type
(make-display-type
'X #t
(named-lambda (x11-screen-available?)
(and (let ((display (get-environment-variable "DISPLAY")))
(and (string? display)
(not (string-null? display))))
(or (let ((dirpath (system-library-directory-pathname "x11-screen/")))
(and dirpath
(file-directory? dirpath)))
;; The subsystem is on the library path (not in a subdirectory on
;; the path) when testing.
(let ((filepath (system-library-pathname "x11-screen.bin" #f)))
(and filepath
(file-loadable? filepath))))))
(named-lambda (make-x11-screen #!optional geometry)
(load-option-quietly 'x11-screen)
(make-xterm-screen geometry))
(named-lambda (get-x11-screen-input-operations screen)
screen
(get-xterm-input-operations))
(named-lambda (with-x11-display-grabbed receiver)
(with-editor-interrupts-from-x receiver))
(named-lambda (with-x11-interrupts-enabled thunk)
(with-x-interrupts-enabled thunk))
(named-lambda (with-x11-interrupts-disabled thunk)
(with-x-interrupts-disabled thunk))))
(define (make-xterm-screen #!optional geometry)
geometry
(error "Not yet autoloaded."))
(define (get-xterm-input-operations)
(error "Not yet autoloaded."))
(define (with-editor-interrupts-from-x receiver)
receiver
(error "Not yet autoloaded."))
(define (with-x-interrupts-enabled thunk)
thunk
(error "Not yet autoloaded."))
(define (with-x-interrupts-disabled thunk)
thunk
(error "Not yet autoloaded."))