diff options
Diffstat (limited to 'lisp/talk.el')
| -rw-r--r-- | lisp/talk.el | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/lisp/talk.el b/lisp/talk.el index bbe9c949dde..6d542b0f99b 100644 --- a/lisp/talk.el +++ b/lisp/talk.el @@ -45,6 +45,20 @@ Each element has the form (DISPLAY FRAME BUFFER).") ;; 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)))) + (if (eq type t) + ;; Termcap frame + (talk-add-tty-frame (selected-frame)) + (if (eq type 'x) + ;; X frame + (talk-add-display (frame-parameter (selected-frame) 'display)) + (error "Could not determine frame type")))) + (talk-update-buffers)) + (defun talk-add-display (display) (let* ((elt (assoc display talk-display-alist)) (name (concat "*talk-" display "*")) @@ -56,6 +70,21 @@ Each element has the form (DISPLAY FRAME BUFFER).") (setq talk-display-alist (cons (list display frame buffer) (delq elt talk-display-alist))))) +(defun talk-add-tty-frame (frame) + (let* ((elt (assoc (frame-tty-name frame) talk-display-alist)) + (name (concat "*talk-" (frame-tty-name frame) "*")) + buffer) + (if (not (and elt (buffer-name (get-buffer (setq buffer (nth 2 elt)))))) + (setq buffer (get-buffer-create name))) + (add-to-list 'delete-tty-after-functions 'talk-handle-delete-tty) + (setq talk-display-alist + (cons (list (frame-tty-name frame) frame buffer) (delq elt talk-display-alist))))) + +(defun talk-handle-delete-tty (tty) + (let ((elt (assoc tty talk-display-alist))) + (setq talk-display-alist (delq elt talk-display-alist)) + (talk-update-buffers))) + (defun talk-disconnect () "Disconnect this display from the Emacs talk group." (interactive) |