1 files changed, 46 insertions, 0 deletions
diff --git a/chess-chat.el b/chess-chat.el
new file mode 100644
index 0000000..ab1dd3b
--- /dev/null
+++ b/chess-chat.el
@@ -0,0 +1,46 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; Implements chess chat, which is very much like kibitzing, but not
+;; saved.  RET is used to send each chat line.
+;;
+
+(defvar chess-chat-input-last nil)
+
+(make-variable-buffer-local 'chess-chat-input-last)
+
+(define-derived-mode chess-chat-mode text-mode "Chat"
+  "A mode for editing chess annotations."
+  (set-buffer-modified-p nil)
+  (setq chess-chat-input-last (copy-marker (point-max) t))
+  (let ((map (current-local-map)))
+    (define-key map [return] 'chess-chat-send)
+    (define-key map [(control ?m)] 'chess-chat-send)))
+
+(defun chess-chat-send ()
+  (interactive)
+  (chess-game-run-hooks chess-module-game 'chat
+			(buffer-substring-no-properties
+			 chess-chat-input-last (point-max)))
+  (set-marker chess-chat-input-last (point-max))
+  (set-buffer-modified-p nil))
+
+(defun chess-chat-handler (game event &rest args)
+  (cond
+   ((eq event 'initialize)
+    (kill-buffer (current-buffer))
+    (set-buffer (generate-new-buffer "*Chat*"))
+    (chess-chat-mode)
+    t)
+
+   ((eq event 'switch-to-chat)
+    (switch-to-buffer-other-window (current-buffer)))
+
+   ((eq event 'chat)
+    (chess-chat-handler 'switch-to-chat)
+    (save-excursion
+      (goto-char chess-chat-input-last)
+      (insert (car args))))))
+
+(provide 'chess-chat)
+
+;;; chess-chat.el ends here