Network: added BNetworkSettingsListener.

* Same as the configuration listener, just for SettingsUpdated().
* This is now broadcasted to all list items, too.

headers/os/add-ons/network_settings/NetworkSettingsAddOn.h

@@ -42,7 +42,14 @@ public:
 };
 
 
-class BNetworkSettingsItem : public BNetworkConfigurationListener {
+class BNetworkSettingsListener {
+public:
+	virtual void				SettingsUpdated(uint32 type) = 0;
+};
+
+
+class BNetworkSettingsItem : public BNetworkConfigurationListener,
+	BNetworkSettingsListener {
 public:
 								BNetworkSettingsItem();
 	virtual						~BNetworkSettingsItem();

src/preferences/network/NetworkWindow.cpp

@@ -477,6 +477,14 @@ NetworkWindow::_SelectItem(BListItem* listItem)
 void
 NetworkWindow::_BroadcastSettingsUpdate(uint32 type)
 {
+	for (int32 index = 0; index < fListView->FullListCountItems(); index++) {
+		BNetworkSettingsListener* listener
+			= dynamic_cast<BNetworkSettingsListener*>(
+				fListView->FullListItemAt(index));
+		if (listener != NULL)
+			listener->SettingsUpdated(type);
+	}
+
 	SettingsMap::const_iterator iterator = fSettingsMap.begin();
 	for (; iterator != fSettingsMap.end(); iterator++)
 		iterator->second->SettingsUpdated(type);