1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
;;; talk.el --- allow several users to talk to each other through Emacs
;; Copyright (C) 1995, 2001, 2002, 2003, 2004, 2005,
;; 2006, 2007, 2008 Free Software Foundation, Inc.
;; Maintainer: FSF
;; Keywords: comm, frames
;; 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 3, 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, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;; This is a multi-user talk package that runs in Emacs.
;; Use talk-connect to bring a new person into the conversation.
;;; Code:
(defvar talk-display-alist nil
"Alist of displays on which Emacs talk is now running.
Each element has the form (DISPLAY FRAME BUFFER).")
;;;###autoload
(defun talk-connect (display)
"Connect to display DISPLAY for the Emacs talk group."
(interactive "sTalk to display: ")
;; Make sure we have an entry for the current display.
(let ((mydisp (cdr (assq 'display (frame-parameters (selected-frame))))))
(talk-add-display mydisp))
;; Make sure we have an entry for the specified display.
(talk-add-display display)
;; Add the new buffers to all talk frames.
(talk-update-buffers))
;;;###autoload
(defun talk ()
"Connect to the Emacs talk group from the current X display or tty frame."
(interactive)
(let ((type (frame-live-p (selected-frame)))
(display (frame-terminal (selected-frame))))
(cond
((eq type t)
(talk-add-display (selected-frame)))
((eq type 'x)
(talk-add-display (frame-terminal (selected-frame))))
(t
(error "Unknown frame type"))))
(talk-update-buffers))
(defun talk-add-display (frame)
(let* ((display (if (frame-live-p frame)
(frame-terminal frame)
frame))
(elt (assoc display talk-display-alist))
(name (concat "*talk-" (terminal-name display) "*"))
buffer)
(unless (frame-live-p frame)
(setq frame (make-frame-on-display display (list (cons 'name name)))))
(if (and elt (frame-live-p (nth 1 elt)))
(setq frame (nth 1 elt)))
(if (not (and elt (buffer-name (get-buffer (setq buffer (nth 2 elt))))))
(setq buffer (get-buffer-create name)))
(add-to-list 'delete-frame-functions 'talk-handle-delete-frame)
(setq talk-display-alist
(cons (list display frame buffer) (delq elt talk-display-alist)))))
(defun talk-handle-delete-frame (frame)
(dolist (d talk-display-alist)
(when (eq (nth 1 d) frame)
(setq talk-display-alist (delq d talk-display-alist))
(talk-update-buffers))))
(defun talk-disconnect ()
"Disconnect this display from the Emacs talk group."
(interactive)
(let* ((mydisp (cdr (assq 'display (frame-parameters (selected-frame)))))
(elt (assoc mydisp talk-display-alist)))
(delete-frame (nth 1 elt))
(kill-buffer (nth 2 elt))
(setq talk-display-alist (delq elt talk-display-alist))
(talk-update-buffers)))
(defun talk-update-buffers ()
"Update all the talk frames so that each shows all the talk buffers."
(let ((tail talk-display-alist))
(while tail
(let ((frame (nth 1 (car tail)))
(this-buffer (nth 2 (car tail)))
(buffers
(mapcar (function (lambda (elt) (nth 2 elt)))
talk-display-alist)))
;; Put this display's own talk buffer
;; at the front of the list.
(setq buffers (cons this-buffer (delq this-buffer buffers)))
(talk-split-up-frame frame buffers))
(setq tail (cdr tail)))))
(defun talk-split-up-frame (frame buffers)
"Split FRAME into equal-sized windows displaying the buffers in BUFFERS.
Select the first of these windows, displaying the first of the buffers."
(let ((lines-per-buffer (/ (frame-height frame) (length buffers)))
(old-frame (selected-frame)))
(unwind-protect
(progn
(select-frame frame)
(select-window (frame-first-window frame))
(delete-other-windows)
(while (progn
(switch-to-buffer (car buffers))
(setq buffers (cdr buffers)))
(split-window-vertically lines-per-buffer)
(other-window 1))
(select-window (frame-first-window frame)))
(select-frame old-frame))))
(provide 'talk)
;; arch-tag: 7ab0ad88-1788-4886-a44c-ae685e6f8a1a
;;; talk.el ends here
|
