Removes toggle lock icon, just lock or unlock it, depending the status returned by the server.

app.js

         connection.emuc.lockRoom(sharedKey);
     else
         connection.emuc.lockRoom('');
-
-    Toolbar.updateLockButton();
 }
 
 /**

muc.js

                     // FIXME: is muc#roomconfig_passwordprotectedroom required?
                     this.connection.sendIQ(formsubmit,
                         function (res) {
-                            console.log('set room password');
+                            // password is required
+                            if (sharedKey)
+                            {
+                                console.log('set room password');
+                                Toolbar.lockLockButton();
+                            }
+                            else
+                            {
+                                console.log('removed room password');
+                                Toolbar.unlockLockButton();
+                            }
                         },
                         function (err) {
                             console.warn('setting password failed', err);
                             messageHandler.showError('Lock failed',
                                 'Failed to lock conference.',
                                 err);
+                            setSharedKey('');
                         }
                     );
                 } else {
                     console.warn('room passwords not supported');
                     messageHandler.showError('Warning',
                         'Room passwords are currently not supported.');
+                    setSharedKey('');
 
                 }
             },
                 messageHandler.showError('Lock failed',
                     'Failed to lock conference.',
                     err);
+                setSharedKey('');
             }
         );
     },

toolbar.js

         }
     };
     /**
-     * Updates the lock button state.
+     * Unlocks the lock button state.
      */
-    my.updateLockButton = function() {
-        buttonClick("#lockIcon", "icon-security icon-security-locked");
+    my.unlockLockButton = function() {
+        if($("#lockIcon").hasClass("icon-security-locked"))
+            buttonClick("#lockIcon", "icon-security icon-security-locked");
     };
     /**
      * Updates the lock button state to locked.