-;;; xt-mouse.el --- Support the mouse when emacs run in an xterm.
+;;; xt-mouse.el --- support the mouse when emacs run in an xterm
-;; Copyright (C) 1994, 2000 Free Software Foundation
+;; Copyright (C) 1994, 2000, 2001 Free Software Foundation
;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
;; Keywords: mouse, terminals
(down-where (nth 1 down-data))
(down-binding (key-binding (if (symbolp down-where)
(vector down-where down-command)
- (vector down-command)))))
- (or (and (eq (read-char) ?\e)
- (eq (read-char) ?\[)
- (eq (read-char) ?M))
- (error "Unexpected escape sequence from XTerm"))
- (let* ((click (xterm-mouse-event))
+ (vector down-command))))
+ (is-click (string-match "^mouse" (symbol-name (car down)))))
+
+ (unless is-click
+ (unless (and (eq (read-char) ?\e)
+ (eq (read-char) ?\[)
+ (eq (read-char) ?M))
+ (error "Unexpected escape sequence from XTerm")))
+
+ (let* ((click (if is-click down (xterm-mouse-event)))
(click-command (nth 0 click))
(click-data (nth 1 click))
(click-where (nth 1 click-data)))
"Position of last xterm mouse event relative to the frame.")
;; Indicator for the xterm-mouse mode.
-(defvar xterm-mouse-mode nil)
(defun xterm-mouse-position-function (pos)
"Bound to `mouse-position-function' in XTerm mouse mode."
(setcdr pos (cons xterm-mouse-x xterm-mouse-y))
pos)
+;; read xterm sequences above ascii 127 (#x7f)
+(defun xterm-mouse-event-read ()
+ (let ((c (read-char)))
+ (if (< c 0)
+ (+ c #x8000000 128)
+ c)))
+
(defun xterm-mouse-event ()
"Convert XTerm mouse event to Emacs mouse event."
- (let* ((type (- (read-char) ? ))
- (x (- (read-char) ? 1))
- (y (- (read-char) ? 1))
+ (let* ((type (- (xterm-mouse-event-read) #o40))
+ (x (- (xterm-mouse-event-read) #o40 1))
+ (y (- (xterm-mouse-event-read) #o40 1))
(point (cons x y))
(window (window-at x y))
(where (if window
(progn
(select-window window)
(goto-char (window-start window))
- (move-to-window-line (cdr where))
- (move-to-column (+ (car where) (current-column)
+ (move-to-window-line (-
+ (cdr where)
+ (if (or header-line-format
+ default-header-line-format)
+ 1
+ 0)))
+ (move-to-column (- (+ (car where) (current-column)
(if (string-match "\\` \\*Minibuf"
(buffer-name))
(- (minibuffer-prompt-width))
0)
- (max 0 (1- (window-hscroll)))))
+ (max 0 (1- (window-hscroll))))
+ left-margin-width))
(point))
where))
- (mouse (intern (if (eq type 3)
- (format "mouse-%d" (+ 1 xterm-mouse-last))
- (setq xterm-mouse-last type)
- (format "down-mouse-%d" (+ 1 type))))))
+ (mouse (intern
+ ;; For buttons > 3, the release-event looks
+ ;; differently (see xc/programs/xterm/button.c,
+ ;; function EditorButton), and there seems to come in
+ ;; a release-event only, no down-event.
+ (cond ((>= type 64)
+ (format "mouse-%d" (- type 60)))
+ ((= type 3)
+ (format "mouse-%d" (+ 1 xterm-mouse-last)))
+ (t
+ (setq xterm-mouse-last type)
+ (format "down-mouse-%d" (+ 1 type)))))))
(setq xterm-mouse-x x
xterm-mouse-y y)
(list mouse
(list window pos point
(/ (nth 2 (current-time)) 1000)))))
-(or (assq 'xterm-mouse-mode minor-mode-alist)
- (setq minor-mode-alist
- (cons '(xterm-mouse-mode (" Mouse")) minor-mode-alist)))
-
;;;###autoload
-(defun xterm-mouse-mode (arg)
+(define-minor-mode xterm-mouse-mode
"Toggle XTerm mouse mode.
With prefix arg, turn XTerm mouse mode on iff arg is positive.
Turn it on to use emacs mouse commands, and off to use xterm mouse commands."
- (interactive "P")
- (if (or (and (null arg) xterm-mouse-mode)
- (<= (prefix-numeric-value arg) 0))
- ;; Turn it off
- (if xterm-mouse-mode
- (progn
- (turn-off-xterm-mouse-tracking)
- (setq xterm-mouse-mode nil
- mouse-position-function nil)
- (set-buffer-modified-p (buffer-modified-p))))
- ;;Turn it on
- (unless (or window-systemxterm-mouse-mode)
- (setq xterm-mouse-mode t
- mouse-position-function #'xterm-mouse-position-function)
- (turn-on-xterm-mouse-tracking)
- (set-buffer-modified-p (buffer-modified-p)))))
+ nil " Mouse" nil :global t
+ (if xterm-mouse-mode
+ ;; Turn it on
+ (unless window-system
+ (setq mouse-position-function #'xterm-mouse-position-function)
+ (turn-on-xterm-mouse-tracking))
+ ;; Turn it off
+ (turn-off-xterm-mouse-tracking 'force)
+ (setq mouse-position-function nil)))
(defun turn-on-xterm-mouse-tracking ()
"Enable Emacs mouse tracking in xterm."
(if xterm-mouse-mode
(send-string-to-terminal "\e[?1000h")))
-(defun turn-off-xterm-mouse-tracking ()
- "Disable disable Emacs mouse tracking in xterm."
- (if xterm-mouse-mode
+(defun turn-off-xterm-mouse-tracking (&optional force)
+ "Disable Emacs mouse tracking in xterm."
+ (if (or force xterm-mouse-mode)
(send-string-to-terminal "\e[?1000l")))
;; Restore normal mouse behaviour outside Emacs.
(provide 'xt-mouse)
+;;; arch-tag: 84962d4e-fae9-4c13-a9d7-ef4925a4ac03
;;; xt-mouse.el ends here