;;; x-win.el --- parse switches controlling interface with X window system
+;; Copyright (C) 1993, 1994 Free Software Foundation, Inc.
;; Author: FSF
;; Keywords: terminals
-;; Copyright (C) 1993 Free Software Foundation, Inc.
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY. No author or distributor
-;; accepts responsibility to anyone for the consequences of using it
-;; or for whether it serves any particular purpose or works at all,
-;; unless he says so in writing. Refer to the GNU Emacs General Public
-;; License for full details.
-
-;; Everyone is granted permission to copy, modify and redistribute
-;; GNU Emacs, but only under the conditions described in the
-;; GNU Emacs General Public License. A copy of this license is
-;; supposed to have been given to you along with GNU Emacs so you
-;; can know your rights and responsibilities. It should be in a
-;; file named COPYING. Among other things, the copyright notice
-;; and this notice must be preserved on all copies.
+;;; 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 2, 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; see the file COPYING. If not, write to
+;;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
;;; Commentary:
;; ../startup.el.
(if (not (eq window-system 'x))
- (error "Loading x-win.el but not compiled for X"))
+ (error "%s: Loading x-win.el but not compiled for X" (invocation-name)))
(require 'frame)
(require 'mouse)
(require 'select)
(require 'menu-bar)
+(defvar x-invocation-args)
+
(defvar x-command-line-resources nil)
(setq command-switch-alist
(append '(("-bw" . x-handle-numeric-switch)
("-d" . x-handle-display)
("-display" . x-handle-display)
- ("-name" . x-handle-switch)
+ ("-name" . x-handle-name-rn-switch)
+ ("-rn" . x-handle-name-rn-switch)
("-T" . x-handle-switch)
("-r" . x-handle-switch)
("-rv" . x-handle-switch)
("-reverse" . x-handle-switch)
("-fn" . x-handle-switch)
("-font" . x-handle-switch)
- ("-ib" . x-handle-switch)
+ ("-ib" . x-handle-numeric-switch)
("-g" . x-handle-geometry)
("-geometry" . x-handle-geometry)
("-fg" . x-handle-switch)
("-ms" . x-handle-switch)
("-itype" . x-handle-switch)
("-i" . x-handle-switch)
- ("-iconic" . x-handle-switch)
- ("-rn" . x-handle-rn-switch)
+ ("-iconic" . x-handle-iconic)
+ ("-xrm" . x-handle-xrm-switch)
("-cr" . x-handle-switch)
("-vb" . x-handle-switch)
("-hb" . x-handle-switch)
("-cr" cursor-color)
("-itype" icon-type t)
("-i" icon-type t)
- ("-iconic" iconic-startup t)
("-vb" vertical-scroll-bars t)
("-hb" horizontal-scroll-bars t)
("-bd" border-color)
default-frame-alist)
x-invocation-args (cdr x-invocation-args))))))
+;; Make -iconic apply only to the initial frame!
+(defun x-handle-iconic (switch)
+ (setq initial-frame-alist
+ (cons '(visibility . icon) initial-frame-alist)))
+
;; Handler for switches of the form "-switch n"
(defun x-handle-numeric-switch (switch)
(let ((aelt (assoc switch x-switch-definitions)))
x-invocation-args
(cdr x-invocation-args)))))
-;; Handle the -rn option.
-(defun x-handle-rn-switch (switch)
+;; Handle the -xrm option.
+(defun x-handle-xrm-switch (switch)
+ (or (consp x-invocation-args)
+ (error "%s: missing argument to `%s' option" (invocation-name) switch))
(setq x-command-line-resources (car x-invocation-args))
(setq x-invocation-args (cdr x-invocation-args)))
;; Handle the geometry option
(defun x-handle-geometry (switch)
- (setq initial-frame-alist
- (append initial-frame-alist
- (x-parse-geometry (car x-invocation-args)))
- x-invocation-args (cdr x-invocation-args)))
+ (let ((geo (x-parse-geometry (car x-invocation-args))))
+ (setq initial-frame-alist
+ (append initial-frame-alist
+ (if (or (assq 'left geo) (assq 'top geo))
+ '((user-position . t)))
+ (if (or (assq 'height geo) (assq 'width geo))
+ '((user-size . t)))
+ geo)
+ x-invocation-args (cdr x-invocation-args))))
+
+;; Handle the -name and -rn options. Set the variable x-resource-name
+;; to the option's operand; if the switch was `-name', set the name of
+;; the initial frame, too.
+(defun x-handle-name-rn-switch (switch)
+ (or (consp x-invocation-args)
+ (error "%s: missing argument to `%s' option" (invocation-name) switch))
+ (setq x-resource-name (car x-invocation-args)
+ x-invocation-args (cdr x-invocation-args))
+ (if (string= switch "-name")
+ (setq initial-frame-alist (cons (cons 'name x-resource-name)
+ initial-frame-alist))))
(defvar x-display-name nil
"The X display name specifying server and X frame.")
(defvar x-invocation-args nil)
(defun x-handle-args (args)
- "Here the X-related command line options in ARGS are processed,
-before the user's startup file is loaded. They are copied to
+ "Process the X-related command line options in ARGS.
+This is done before the user's startup file is loaded. They are copied to
x-invocation args from which the X-related things are extracted, first
the switch (e.g., \"-fg\") in the following code, and possible values
-(e.g., \"black\") in the option handler code (e.g., x-handle-switch).
+\(e.g., \"black\") in the option handler code (e.g., x-handle-switch).
This returns ARGS with the arguments that have been processed removed."
(setq x-invocation-args args
args nil)
\f
;;;; Function keys
-(substitute-key-definition 'suspend-emacs 'iconify-frame global-map)
+(defun iconify-or-deiconify-frame ()
+ "Iconify the selected frame, or deiconify if it's currently an icon."
+ (interactive)
+ (if (eq (cdr (assq 'visibility (frame-parameters))) t)
+ (iconify-frame)
+ (make-frame-visible)))
+
+(substitute-key-definition 'suspend-emacs 'iconify-or-deiconify-frame
+ global-map)
;; Map certain keypad keys into ASCII characters
;; that people usually expect.
(put 'clear 'ascii-character 12)
(put 'return 'ascii-character 13)
(put 'escape 'ascii-character ?\e)
+
+;; Set up to recognize vendor-specific keysyms.
+;; Unless/until there is a real conflict,
+;; we need not try to make this list depend on
+;; the type of X server in use.
+(setq system-key-alist
+ '(
+ ;; These are some HP keys.
+ ( 168 . mute-acute)
+ ( 169 . mute-grave)
+ ( 170 . mute-asciicircum)
+ ( 171 . mute-diaeresis)
+ ( 172 . mute-asciitilde)
+ ( 175 . lira)
+ ( 190 . guilder)
+ ( 252 . block)
+ ( 256 . longminus)
+ (65388 . reset)
+ (65389 . system)
+ (65390 . user)
+ (65391 . clearline)
+ (65392 . insertline)
+ (65393 . deleteline)
+ (65394 . insertchar)
+ (65395 . deletechar)
+ (65396 . backtab)
+ (65397 . kp-backtab)
+ ;; This is used by DEC's X server.
+ (65280 . remove)
+ ;; These are for Sun.
+ (392963 . mute-acute)
+ (392976 . f35)
+ (392977 . f36)
+ (393056 . req)
+ ;; These are for Sun under X11R6
+ (393072 . props)
+ (393073 . front)
+ (393074 . copy)
+ (393075 . open)
+ (393076 . paste)
+ (393077 . cut)
+ ))
\f
;;;; Selections and cut buffers
;;; from x-cut-buffer-or-selection-value.
(defvar x-last-selected-text nil)
-;;; Make TEXT, a string, the primary and clipboard X selections.
-;;; If you are running xclipboard, this means you can effectively
-;;; have a window on a copy of the kill-ring.
+;;; It is said that overlarge strings are slow to put into the cut buffer.
+;;; Note this value is overridden below.
+(defvar x-cut-buffer-max 20000
+ "Max number of characters to put in the cut buffer.")
+
+(defvar x-select-enable-clipboard nil
+ "Non-nil means cutting and pasting uses the clipboard.
+This is in addition to the primary selection.")
+
+;;; Make TEXT, a string, the primary X selection.
;;; Also, set the value of X cut buffer 0, for backward compatibility
;;; with older X applications.
+;;; gildea@lcs.mit.edu says it's not desirable to put kills
+;;; in the clipboard.
(defun x-select-text (text &optional push)
- (x-set-cut-buffer text push)
- (x-set-selection 'CLIPBOARD text)
+ ;; Don't send the cut buffer too much text.
+ ;; It becomes slow, and if really big it causes errors.
+ (if (< (length text) x-cut-buffer-max)
+ (x-set-cut-buffer text push)
+ (x-set-cut-buffer "" push))
(x-set-selection 'PRIMARY text)
+ (if x-select-enable-clipboard
+ (x-set-selection 'CLIPBOARD text))
(setq x-last-selected-text text))
-;;; Return the value of the current X selection. For compatibility
-;;; with older X applications, this checks cut buffer 0 before
-;;; retrieving the value of the primary selection.
+;;; Return the value of the current X selection.
+;;; Consult the selection, then the cut buffer. Treat empty strings
+;;; as if they were unset.
(defun x-cut-buffer-or-selection-value ()
(let (text)
- ;; Consult the cut buffer, then the selection. Treat empty strings
- ;; as if they were unset.
- (setq text (x-get-cut-buffer 0))
+ ;; Don't die if x-get-selection signals an error.
+ (condition-case c
+ (setq text (x-get-selection 'PRIMARY))
+ (error (message "%s" c)))
+ (if (string= text "") (setq text nil))
+
+ (if x-select-enable-clipboard
+ (condition-case c
+ (setq text (x-get-selection 'CLIPBOARD))
+ (error (message "%s" c))))
(if (string= text "") (setq text nil))
- (or text (setq text (x-get-selection 'PRIMARY)))
+ (or text (setq text (x-get-cut-buffer 0)))
(if (string= text "") (setq text nil))
(cond
;;; functions and variables that we use now.
(setq command-line-args (x-handle-args command-line-args))
+
+;;; Make sure we have a valid resource name.
+(or (stringp x-resource-name)
+ (let (i)
+ (setq x-resource-name (invocation-name))
+
+ ;; Change any . or * characters in x-resource-name to hyphens,
+ ;; so as not to choke when we use it in X resource queries.
+ (while (setq i (string-match "[.*]" x-resource-name))
+ (aset x-resource-name i ?-))))
+
(x-open-connection (or x-display-name
(setq x-display-name (getenv "DISPLAY")))
x-command-line-resources)
(setq frame-creation-function 'x-create-frame-with-faces)
+(setq x-cut-buffer-max (min (- (/ (x-server-max-request-size) 2) 100)
+ x-cut-buffer-max))
+
+;; Sun expects the menu bar cut and paste commands to use the clipboard.
+(if (string-match "X11/NeWS - Sun Microsystems Inc\\."
+ (x-server-vendor))
+ (menu-bar-enable-clipboard))
+
;; Apply a geometry resource to the initial frame. Put it at the end
;; of the alist, so that anything specified on the command line takes
;; precedence.
(setq initial-frame-alist (append initial-frame-alist
(x-parse-geometry res-geometry)))))
+;; Check the reverseVideo resource.
+(let ((case-fold-search t))
+ (let ((rv (x-get-resource "reverseVideo" "ReverseVideo")))
+ (if (and rv
+ (string-match "^\\(true\\|yes\\|on\\)$" rv))
+ (setq default-frame-alist
+ (cons '(reverse . t) default-frame-alist)))))
+
+;; Set x-selection-timeout, measured in milliseconds.
+(let ((res-selection-timeout
+ (x-get-resource "selectionTimeout" "SelectionTimeout")))
+ (setq x-selection-timeout 20000)
+ (if res-selection-timeout
+ (setq x-selection-timeout (string-to-number res-selection-timeout))))
+
(defun x-win-suspend-error ()
(error "Suspending an emacs running under X makes no sense"))
(add-hook 'suspend-hook 'x-win-suspend-error)