Described 4.0.0 changes.

[elisp/riece.git] / lisp / riece-display.el

diff --git a/lisp/riece-display.el b/lisp/riece-display.el
index 82af80f..96c32ff 100644 (file)
--- a/lisp/riece-display.el
+++ b/lisp/riece-display.el
@@ -19,8 +19,8 @@
 
 ;; 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.
 
 ;;; Code:
 
@@ -29,6 +29,7 @@
 (require 'riece-misc)
 (require 'riece-layout)
 (require 'riece-signal)
+(require 'riece-mcat)
 
 (autoload 'derived-mode-class "derived")
 
@@ -125,11 +126,13 @@ Local to the buffer in `riece-buffer-list'.")
                 (riece-identity-server riece-current-channel))
          (riece-with-server-buffer (riece-identity-server
                                     riece-current-channel)
-           (riece-identity-assoc
-            (riece-identity-prefix (nth 1 (riece-signal-args signal)))
-            (riece-channel-get-users (riece-identity-prefix
-                                      riece-current-channel))
-            t)))))
+           (when (riece-channel-p (riece-identity-prefix
+                                   riece-current-channel))
+             (riece-identity-assoc
+              (riece-identity-prefix (nth 1 (riece-signal-args signal)))
+              (riece-channel-get-users (riece-identity-prefix
+                                        riece-current-channel))
+              t))))))
   (riece-connect-signal
    'user-renamed
    (lambda (signal handback)
@@ -278,7 +281,7 @@ Local to the buffer in `riece-buffer-list'.")
   (setq riece-channel-indicator
        (if riece-current-channel
            (riece-format-identity riece-current-channel)
-         "None")))
+         (riece-mcat "None"))))
 
 (defun riece-update-long-channel-indicator ()
   (setq riece-long-channel-indicator
@@ -290,7 +293,7 @@ Local to the buffer in `riece-buffer-list'.")
                  riece-current-channel
                  (riece-format-identity riece-current-channel)))
              (riece-format-identity riece-current-channel))
-         "None")))
+         (riece-mcat "None"))))
 
 (defun riece-format-identity-for-channel-list-indicator (index identity)
   (or (run-hook-with-args-until-success
@@ -328,7 +331,7 @@ Local to the buffer in `riece-buffer-list'.")
          (setq pointer (cdr (cdr pointer))))
        (setq riece-channel-list-indicator
              (riece-normalize-modeline-string riece-channel-list-indicator)))
-    (setq riece-channel-list-indicator "No channel")))
+    (setq riece-channel-list-indicator (riece-mcat "No channel"))))
 
 (defun riece-update-status-indicators ()
   (let ((server-name (riece-current-server-name)))
@@ -402,7 +405,8 @@ Local to the buffer in `riece-buffer-list'.")
     (if channels
        (setq identity (car channels))
       (if riece-debug
-         (message "%S is not a member of riece-current-channels" identity)))
+         (riece-debug (format "%S is not a member of riece-current-channels"
+                              identity))))
     (format riece-channel-buffer-format (riece-format-identity identity))))
 
 (eval-when-compile
@@ -418,15 +422,21 @@ Local to the buffer in `riece-buffer-list'.")
       (riece-channel-mode)
       (let (buffer-read-only)
        (riece-insert-info (current-buffer)
-                          (concat "Created on "
+                          (format (riece-mcat "Created on %s\n")
                                   (funcall riece-format-time-function
-                                           (current-time))
-                                  "\n"))
+                                           (current-time))))
        (run-hook-with-args 'riece-channel-buffer-create-functions identity)))
     (current-buffer)))
 
 (defun riece-channel-buffer (identity)
-  (cdr (riece-identity-assoc identity riece-channel-buffer-alist)))
+  (let ((entry (riece-identity-assoc identity riece-channel-buffer-alist)))
+    (if entry
+       (if (buffer-live-p (cdr entry))
+           (cdr entry)
+         (if riece-debug
+             (riece-debug
+              (format "riece-channel-buffer: nonexistent buffer: %s"
+                      (riece-format-identity identity))))))))
 
 (defun riece-switch-to-channel (identity)
   (let ((last riece-current-channel)
@@ -473,10 +483,12 @@ Local to the buffer in `riece-buffer-list'.")
 
 (defun riece-part-channel (identity)
   (let ((pointer (riece-identity-member identity riece-current-channels)))
-    (if pointer
-       (setcar pointer nil))
+    (unless pointer
+      (error "No such channel!"))
+    (setcar pointer nil)
     (if (riece-identity-equal identity riece-current-channel)
-       (riece-switch-to-nearest-channel pointer))
+       (riece-switch-to-nearest-channel pointer)
+      (riece-emit-signal 'channel-list-changed))
     (funcall riece-buffer-dispose-function (riece-channel-buffer identity))))
 
 (defun riece-redisplay-buffers (&optional force)