emacs-jabber/jabber-chatbuffer.el

138 lines
4.8 KiB
EmacsLisp

;; jabber-chatbuffer.el - functions common to all chat buffers
;; Copyright (C) 2005, 2007, 2008 - Magnus Henoch - mange@freemail.hu
;; This file is a part of jabber.el.
;; This program 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 2 of the License, or
;; (at your option) any later version.
;; This program 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 this program; if not, write to the Free Software
;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
(require 'jabber-keymap)
(defvar jabber-point-insert nil
"Position where the message being composed starts")
(defvar jabber-send-function nil
"Function for sending a message from a chat buffer.")
(defvar jabber-chat-mode-hook nil
"Hook called at the end of `jabber-chat-mode'.
Note that functions in this hook have no way of knowing
what kind of chat buffer is being created.")
(defcustom jabber-chat-fill-long-lines t
"If non-nil, fill long lines in chat buffers.
Lines are broken at word boundaries at the width of the
window or at `fill-column', whichever is shorter."
:group 'jabber-chat
:type 'boolean)
(defvar jabber-chat-ewoc nil
"The ewoc showing the messages of this chat buffer.")
;;;###autoload
(defvar jabber-buffer-connection nil
"The connection used by this buffer.")
;;;###autoload
(make-variable-buffer-local 'jabber-buffer-connection)
(defun jabber-chat-mode (jc ewoc-pp)
"\\{jabber-chat-mode-map}"
(kill-all-local-variables)
;; Make sure to set this variable somewhere
(make-local-variable 'jabber-send-function)
(make-local-variable 'scroll-conservatively)
(make-local-variable 'jabber-point-insert)
(make-local-variable 'jabber-chat-ewoc)
(make-local-variable 'buffer-undo-list)
(setq jabber-buffer-connection jc
scroll-conservatively 5
buffer-undo-list t) ;dont keep undo list for chatbuffer
(unless jabber-chat-ewoc
(setq jabber-chat-ewoc
(ewoc-create ewoc-pp nil "---"))
(goto-char (point-max))
(put-text-property (point-min) (point) 'read-only t)
(let ((inhibit-read-only t))
(put-text-property (point-min) (point) 'front-sticky t)
(put-text-property (point-min) (point) 'rear-nonsticky t))
(setq jabber-point-insert (point-marker)))
;;(setq header-line-format jabber-chat-header-line-format)
(setq major-mode 'jabber-chat-mode
mode-name "jabber-chat")
(use-local-map jabber-chat-mode-map)
(if (fboundp 'run-mode-hooks)
(run-mode-hooks 'jabber-chat-mode-hook)
(run-hooks 'jabber-chat-mode-hook)))
(put 'jabber-chat-mode 'mode-class 'special)
;; Spell check only what you're currently writing
(defun jabber-chat-mode-flyspell-verify ()
(>= (point) jabber-point-insert))
(put 'jabber-chat-mode 'flyspell-mode-predicate
'jabber-chat-mode-flyspell-verify)
(defvar jabber-chat-mode-map
(let ((map (make-sparse-keymap)))
(set-keymap-parent map jabber-common-keymap)
(define-key map "\r" 'jabber-chat-buffer-send)
map))
(defun jabber-chat-buffer-send ()
(interactive)
;; If user accidentally hits RET without writing anything, just
;; ignore it.
(when (plusp (- (point-max) jabber-point-insert))
;; If connection was lost...
(unless (memq jabber-buffer-connection jabber-connections)
;; ...maybe there is a new connection to the same account.
(let ((new-jc (jabber-find-active-connection jabber-buffer-connection)))
(if new-jc
;; If so, just use it.
(setq jabber-buffer-connection new-jc)
;; Otherwise, ask for a new account.
(setq jabber-buffer-connection (jabber-read-account t)))))
(let ((body (delete-and-extract-region jabber-point-insert (point-max))))
(funcall jabber-send-function jabber-buffer-connection body))))
(defun jabber-chat-buffer-fill-long-lines ()
"Fill lines that are wider than the window width."
;; This was mostly stolen from article-fill-long-lines
(interactive)
(save-excursion
(let ((inhibit-read-only t)
(width (window-width (get-buffer-window (current-buffer)))))
(goto-char (point-min))
(let ((adaptive-fill-mode nil)) ;Why? -sm
(while (not (eobp))
(end-of-line)
(when (>= (current-column) (min fill-column width))
(save-restriction
(narrow-to-region (min (1+ (point)) (point-max))
(point-at-bol))
(let ((goback (point-marker)))
(fill-paragraph nil)
(goto-char (marker-position goback)))))
(forward-line 1))))))
(provide 'jabber-chatbuffer)
;; arch-tag: 917e5b60-5894-4c49-b3bc-12e1f97ffdc6