Fixed typo.

[riece] / lisp / riece-signal.el

diff --git a/lisp/riece-signal.el b/lisp/riece-signal.el
index 7fedd2f..844c3cc 100644 (file)
--- a/lisp/riece-signal.el
+++ b/lisp/riece-signal.el
@@ -29,6 +29,9 @@
 
 ;;; Code:
 
+(require 'riece-options)
+(require 'riece-debug)
+
 (defvar riece-signal-slot-obarray
   (make-vector 31 0))
 
@@ -70,12 +73,27 @@ This function is for internal use only."
   (aref signal 1))
 
 (defun riece-connect-signal (signal-name function &optional filter handback)
-  "Add SLOT as a listener of a signal identified by SIGNAL-NAME."
+  "Add FUNCTION as a listener of a signal identified by SIGNAL-NAME."
   (let ((symbol (intern (symbol-name signal-name) riece-signal-slot-obarray)))
     (set symbol (cons (riece-make-slot function filter handback)
                      (if (boundp symbol)
                          (symbol-value symbol))))))
 
+(defun riece-disconnect-signal (signal-name function)
+  "Remove FUNCTION from the listener of the signal identified by SIGNAL-NAME."
+  (let* ((symbol (intern-soft (symbol-name signal-name)
+                            riece-signal-slot-obarray))
+        (slots (symbol-value symbol)))
+    (while slots
+      (if (eq (riece-slot-function (car slots))
+             function)
+         (set symbol (delq (car slots) (symbol-value symbol))))
+      (setq slots (cdr slots)))))
+
+(defun riece-clear-signal-slots ()
+  "Remove all functions from listeners list."
+  (fillarray riece-signal-slot-obarray 0))
+
 (defun riece-emit-signal (signal-name &rest args)
   "Emit SIGNAL."
   (let ((symbol (intern-soft (symbol-name signal-name)
@@ -86,22 +104,14 @@ This function is for internal use only."
       (setq signal (riece-make-signal signal-name args)
            slots (symbol-value symbol))
       (while slots
-       (condition-case error
-           (if (or (null (riece-slot-filter (car slots)))
-                   (condition-case error
-                       (funcall (riece-slot-filter (car slots)) signal)
-                     (error
-                      (if riece-debug
-                          (message
-                           "Error occurred in signal filter for \"%S\": %S"
-                           signal-name error)))
-                     nil))
-               (funcall (riece-slot-function (car slots))
-                        signal (riece-slot-handback (car slots))))
-         (error
-          (if riece-debug
-              (message "Error occurred in slot function for \"%S\": %S"
-                       signal-name error))))
+       (riece-ignore-errors (format "slot function for \"%S\""
+                                    signal-name)
+         (if (or (null (riece-slot-filter (car slots)))
+                 (riece-ignore-errors (format "signal filter for \"%S\""
+                                              signal-name)
+                   (funcall (riece-slot-filter (car slots)) signal)))
+             (funcall (riece-slot-function (car slots))
+                      signal (riece-slot-handback (car slots)))))
        (setq slots (cdr slots))))))
 
 (provide 'riece-signal)