Extend available callbacks by allowing to register a callback in case of failure to establish connection.

Author: aentinger

src/Arduino_ConnectionHandler.cpp

@@ -107,9 +107,10 @@ void ConnectionHandler::addCallback(NetworkConnectionEvent const event, OnNetwor
 {
   switch (event)
   {
-    case NetworkConnectionEvent::CONNECTED:    _on_connect_event_callback    = callback; break;
-    case NetworkConnectionEvent::DISCONNECTED: _on_disconnect_event_callback = callback; break;
-    case NetworkConnectionEvent::ERROR:        _on_error_event_callback      = callback; break;
+    case NetworkConnectionEvent::CONNECTED:         _on_connect_event_callback           = callback; break;
+    case NetworkConnectionEvent::DISCONNECTED:      _on_disconnect_event_callback        = callback; break;
+    case NetworkConnectionEvent::ERROR:             _on_error_event_callback             = callback; break;
+    case NetworkConnectionEvent::CONNECTION_FAILED: _on_connection_failed_event_callback = callback; break;
   }
 }
 

src/Arduino_ConnectionHandler.h

@@ -152,7 +152,8 @@ enum class NetworkConnectionState : unsigned int {
 enum class NetworkConnectionEvent {
   CONNECTED,
   DISCONNECTED,
-  ERROR
+  ERROR,
+  CONNECTION_FAILED,
 };
 
 typedef void (*OnNetworkEventCallback)();
@@ -218,6 +219,10 @@ class ConnectionHandler {
     virtual NetworkConnectionState update_handleDisconnecting() = 0;
     virtual NetworkConnectionState update_handleDisconnected () = 0;
 
+  protected:
+
+    OnNetworkEventCallback _on_connection_failed_event_callback = NULL;
+
 
   private:
 

src/Arduino_WiFiConnectionHandler.cpp

@@ -103,6 +103,8 @@ NetworkConnectionState WiFiConnectionHandler::update_handleConnecting()
 
   if (WiFi.status() != NETWORK_CONNECTED)
   {
+    if (_on_connection_failed_event_callback)
+      _on_connection_failed_event_callback();
 #if !defined(__AVR__)
     Debug.print(DBG_ERROR, F("Connection to \"%s\" failed"), _ssid);
     Debug.print(DBG_INFO, F("Retrying in  \"%d\" milliseconds"), CHECK_INTERVAL_TABLE[static_cast<unsigned int>(NetworkConnectionState::CONNECTING)]);