* lisp/subr.el (read-quoted-char): Fix up last change.
[emacs.git] / lisp / term / sup-mouse.el
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1 ;;; sup-mouse.el --- supdup mouse support for lisp machines
3 ;; Copyright (C) 1985, 1986, 2001, 2002, 2003, 2004,
4 ;; 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
6 ;; Author: Wolfgang Rupprecht
7 ;; Maintainer: FSF
8 ;; Created: 21 Nov 1986
9 ;; Keywords: hardware
11 ;; (from code originally written by John Robinson@bbn for the bitgraph)
13 ;; This file is part of GNU Emacs.
15 ;; GNU Emacs is free software: you can redistribute it and/or modify
16 ;; it under the terms of the GNU General Public License as published by
17 ;; the Free Software Foundation, either version 3 of the License, or
18 ;; (at your option) any later version.
20 ;; GNU Emacs is distributed in the hope that it will be useful,
21 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
22 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 ;; GNU General Public License for more details.
25 ;; You should have received a copy of the GNU General Public License
26 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
28 ;;; Commentary:
30 ;;; Code:
32 ;;; User customization option:
34 (defvar sup-mouse-fast-select-window nil
35 "*Non-nil for mouse hits to select new window, then execute; else just select.")
37 (defconst mouse-left 0)
38 (defconst mouse-center 1)
39 (defconst mouse-right 2)
41 (defconst mouse-2left 4)
42 (defconst mouse-2center 5)
43 (defconst mouse-2right 6)
45 (defconst mouse-3left 8)
46 (defconst mouse-3center 9)
47 (defconst mouse-3right 10)
49 ;;; Defuns:
51 (defun sup-mouse-report ()
52 "This function is called directly by the mouse, it parses and
53 executes the mouse commands.
55 L move point * |---- These apply for mouse click in a window.
56 2L delete word |
57 3L copy word | If sup-mouse-fast-select-window is nil,
58 C move point and yank * | just selects that window.
59 2C yank pop |
60 R set mark * |
61 2R delete region |
62 3R copy region |
64 on modeline on \"scroll bar\" in minibuffer
65 L scroll-up line to top execute-extended-command
66 C proportional goto-char line to middle mouse-help
67 R scroll-down line to bottom eval-expression"
69 (interactive)
70 (let*
71 ;; expect a string of <esc>:<buttons>;<x-pos>;<y-pos>c
72 ((buttons (sup-get-tty-num ?\;))
73 (x (sup-get-tty-num ?\;))
74 (y (sup-get-tty-num ?c))
75 (window (sup-pos-to-window x y))
76 (edges (window-edges window))
77 (old-window (selected-window))
78 (in-minibuf-p (eq y (1- (frame-height))))
79 (same-window-p (and (not in-minibuf-p) (eq window old-window)))
80 (in-modeline-p (eq y (1- (nth 3 edges))))
81 (in-scrollbar-p (>= x (1- (nth 2 edges)))))
82 (setq x (- x (nth 0 edges)))
83 (setq y (- y (nth 1 edges)))
85 ; (error "mouse-hit %d %d %d" buttons x y) ;;;; debug
87 (cond (in-modeline-p
88 (select-window window)
89 (cond ((= buttons mouse-left)
90 (scroll-up))
91 ((= buttons mouse-right)
92 (scroll-down))
93 ((= buttons mouse-center)
94 (goto-char (/ (* x
95 (- (point-max) (point-min)))
96 (1- (window-width))))
97 (beginning-of-line)
98 (what-cursor-position)))
99 (select-window old-window))
100 (in-scrollbar-p
101 (select-window window)
102 (scroll-up
103 (cond ((= buttons mouse-left)
105 ((= buttons mouse-right)
106 (+ y (- 2 (window-height))))
107 ((= buttons mouse-center)
108 (/ (+ 2 y y (- (window-height))) 2))
110 0)))
111 (select-window old-window))
112 (same-window-p
113 (cond ((= buttons mouse-left)
114 (sup-move-point-to-x-y x y))
115 ((= buttons mouse-2left)
116 (sup-move-point-to-x-y x y)
117 (kill-word 1))
118 ((= buttons mouse-3left)
119 (sup-move-point-to-x-y x y)
120 (save-excursion
121 (copy-region-as-kill
122 (point) (progn (forward-word 1) (point))))
123 (setq this-command 'yank)
125 ((= buttons mouse-right)
126 (push-mark)
127 (sup-move-point-to-x-y x y)
128 (exchange-point-and-mark))
129 ((= buttons mouse-2right)
130 (push-mark)
131 (sup-move-point-to-x-y x y)
132 (kill-region (mark) (point)))
133 ((= buttons mouse-3right)
134 (push-mark)
135 (sup-move-point-to-x-y x y)
136 (copy-region-as-kill (mark) (point))
137 (setq this-command 'yank))
138 ((= buttons mouse-center)
139 (sup-move-point-to-x-y x y)
140 (setq this-command 'yank)
141 (yank))
142 ((= buttons mouse-2center)
143 (yank-pop 1))
146 (in-minibuf-p
147 (cond ((= buttons mouse-right)
148 (call-interactively 'eval-expression))
149 ((= buttons mouse-left)
150 (call-interactively 'execute-extended-command))
151 ((= buttons mouse-center)
152 (describe-function 'sup-mouse-report)); silly self help
154 (t ;in another window
155 (select-window window)
156 (cond ((not sup-mouse-fast-select-window))
157 ((= buttons mouse-left)
158 (sup-move-point-to-x-y x y))
159 ((= buttons mouse-right)
160 (push-mark)
161 (sup-move-point-to-x-y x y)
162 (exchange-point-and-mark))
163 ((= buttons mouse-center)
164 (sup-move-point-to-x-y x y)
165 (setq this-command 'yank)
166 (yank))
171 (defun sup-get-tty-num (term-char)
172 "Read from terminal until TERM-CHAR is read, and return intervening number.
173 Upon non-numeric not matching TERM-CHAR signal an error."
174 (let
175 ((num 0)
176 (char (read-char)))
177 (while (and (>= char ?0)
178 (<= char ?9))
179 (setq num (+ (* num 10) (- char ?0)))
180 (setq char (read-char)))
181 (or (eq term-char char)
182 (error "Invalid data format in mouse command"))
183 num))
185 (defun sup-move-point-to-x-y (x y)
186 "Position cursor in window coordinates.
187 X and Y are 0-based character positions in the window."
188 (move-to-window-line y)
189 (move-to-column x)
192 (defun sup-pos-to-window (x y)
193 "Find window corresponding to frame coordinates.
194 X and Y are 0-based character positions on the frame."
195 (get-window-with-predicate (lambda (w)
196 (coordinates-in-window-p (cons x y) w))))
198 ;; arch-tag: ec644ed4-cac4-43b8-b3db-cfe83e9098d7
199 ;;; sup-mouse.el ends here