X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;f=lisp%2Friece-history.el;h=25b8e7e6c57b514beb10856e83ffcf8abf03d781;hb=bf2df5d4bf0f70c7f102eb924e352f83d46f3fa4;hp=aece8294c803697ade61aa19a3477ca08ace6d07;hpb=b548b4a448ec0f207c010ec7e449f818f3b77a02;p=elisp%2Friece.git

diff --git a/lisp/riece-history.el b/lisp/riece-history.el
index aece829..25b8e7e 100644
--- a/lisp/riece-history.el
+++ b/lisp/riece-history.el
@@ -1,4 +1,4 @@
-;;; riece-history.el --- channel history management add-on
+;;; riece-history.el --- manage history of channel shifting
 ;; Copyright (C) 1998-2003 Daiki Ueno
 
 ;; Author: Daiki Ueno <ueno@unixuser.org>
@@ -18,11 +18,13 @@
 
 ;; 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., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
 
 ;;; Commentary:
 
+;; NOTE: This is an add-on module for Riece.
+
 ;; You can check recently visited channels via `C-c g' in the commands
 ;; buffer, by adding the following lines to ~/.riece/init.el:
 
@@ -33,12 +35,13 @@
 
 (require 'riece-options)
 (require 'riece-globals)
-(require 'riece-highlight)
 (require 'riece-identity)
+(require 'riece-signal)
 (require 'ring)
+(require 'riece-highlight)
 
 (defgroup riece-history nil
-  "Channel history"
+  "Manage history of channel shifting."
   :tag "History"
   :prefix "riece-"
   :group 'riece)
@@ -61,8 +64,21 @@
   :group 'riece-highlight-faces)
 (defvar riece-channel-list-history-face 'riece-channel-list-history-face)
 
+(unless (riece-facep 'riece-modeline-history-face)
+  (make-face 'riece-modeline-history-face
+	     "Face used for displaying history channels in modeline.")
+  (if (featurep 'xemacs)
+      (set-face-parent 'riece-modeline-history-face 'modeline))
+  (set-face-foreground 'riece-modeline-history-face
+		       (face-foreground 'riece-channel-list-history-face)))
+
+(defvar riece-modeline-history-face 'riece-modeline-history-face)
+
 (defvar riece-channel-history nil)
 
+(defconst riece-history-description
+  "Manage history of channel shifting.")
+
 (defun riece-guess-channel-from-history ()
   (let ((length (ring-length riece-channel-history))
 	(index 0)
@@ -72,32 +88,48 @@
 	    index (1+ index)))
     (nreverse result)))
 
-(defun riece-history-format-channel-list-line (index channel)
-  (if (and (not (ring-empty-p riece-channel-history))
-	   (riece-identity-equal channel (ring-ref riece-channel-history 0)))
+(defun riece-history-format-identity-for-channel-list-buffer (index identity)
+  (if (and (get 'riece-history 'riece-addon-enabled)
+	   (not (ring-empty-p riece-channel-history))
+	   (riece-identity-equal identity (ring-ref riece-channel-history 0)))
       (concat (format "%2d:+" index)
-		(riece-format-identity channel)
-		"\n")))
+	      (riece-format-identity identity))))
+
+(defun riece-history-format-identity-for-channel-list-indicator (index
+								 identity)
+  (if (and (get 'riece-history 'riece-addon-enabled)
+	   (not (ring-empty-p riece-channel-history))
+	   (riece-identity-equal identity (ring-ref riece-channel-history 0)))
+      (let ((string (riece-format-identity identity))
+	    (start 0))
+	;; Escape % -> %%.
+	(while (string-match "%" string start)
+	  (setq start (1+ (match-end 0))
+		string (replace-match "%%" nil nil string)))
+	(list (format "%d:" index)
+	      (riece-propertize-modeline-string
+	       string 'face 'riece-modeline-history-face)))))
 
 ;;; (defun riece-history-requires ()
 ;;;   (if (memq 'riece-guess riece-addons)
 ;;;       '(riece-guess)))
 
+(defun riece-history-after-switch-to-channel-functions (last)
+  (if (and (get 'riece-history 'riece-addon-enabled) last
+	   (not (riece-identity-equal last riece-current-channel)))
+      (ring-insert riece-channel-history last)))
+
+(defun riece-history-requires ()
+  (if (memq 'riece-highlight riece-addons)
+      '(riece-highlight)))
+
 (defun riece-history-insinuate ()
-  (add-hook 'riece-startup-hook
-	    (lambda ()
-	      (setq riece-channel-history
-		    (make-ring riece-channel-history-length))))
-  (add-hook 'riece-exit-hook
-	    (lambda ()
-	      (setq riece-channel-history nil)))
   (add-hook 'riece-after-switch-to-channel-functions
-	    (lambda (last)
-	      (if (and last
-		       (not (riece-identity-equal last riece-current-channel)))
-		  (ring-insert riece-channel-history last))))
-  (add-hook 'riece-format-channel-list-line-functions
-	    'riece-history-format-channel-list-line)
+	    'riece-history-after-switch-to-channel-functions)
+  (add-hook 'riece-format-identity-for-channel-list-buffer-functions
+	    'riece-history-format-identity-for-channel-list-buffer)
+  (add-hook 'riece-format-identity-for-channel-list-indicator-functions
+	    'riece-history-format-identity-for-channel-list-indicator)
   (if (memq 'riece-highlight riece-addons)
       (setq riece-channel-list-mark-face-alist
 	    (cons '(?+ . riece-channel-list-history-face)
@@ -107,7 +139,26 @@
 ;;;		'riece-guess-channel-from-history))
   )
 
+(defun riece-history-uninstall ()
+  (remove-hook 'riece-after-switch-to-channel-functions
+	       'riece-history-after-switch-to-channel-functions)
+  (remove-hook 'riece-format-identity-for-channel-list-buffer-functions
+	       'riece-history-format-identity-for-channel-list-buffer)
+  (remove-hook 'riece-format-identity-for-channel-list-indicator-functions
+	       'riece-history-format-identity-for-channel-list-indicator)
+  (setq riece-channel-list-mark-face-alist
+	(delq (assq ?+ riece-channel-list-mark-face-alist)
+	      riece-channel-list-mark-face-alist)))
+
+(defun riece-history-enable ()
+  (setq riece-channel-history
+	(make-ring riece-channel-history-length))
+  (riece-emit-signal 'channel-list-changed))
+
+(defun riece-history-disable ()
+  (setq riece-channel-history nil)
+  (riece-emit-signal 'channel-list-changed))
+
 (provide 'riece-history)
 
 ;;; riece-history.el ends here
-