Merge pull request #378 from gmag11/resetConfigCallback

Add a callback when reset settings is triggered, changed to development branch

WiFiManager.cpp

@@ -1887,6 +1887,9 @@ void WiFiManager::resetSettings() {
   DEBUG_WM(F("SETTINGS ERASED"));
   WiFi_enableSTA(true,true); // must be sta to disconnect erase
   
+  if (_resetcallback != NULL)
+      _resetcallback();
+  
   #ifdef ESP32
     WiFi.disconnect(true,true);
   #else
@@ -2020,6 +2023,12 @@ void WiFiManager::setSaveConfigCallback( std::function<void()> func ) {
   _savecallback = func;
 }
 
+//start up reset config callback
+void WiFiManager::setConfigResetCallback(void(*func)(void)) {
+    _resetcallback = func;
+}
+
+//sets a custom element to add to head, like a new style tag
 /**
  * setPreSaveConfigCallback, set a pre save config callback after closing configportal
  * @todo only calls if configportal stopped

WiFiManager.h

@@ -196,6 +196,8 @@ class WiFiManager
     void          setSTAStaticIPConfig(IPAddress ip, IPAddress gw, IPAddress sn, IPAddress dns);
     //called when AP mode and config portal is started
     void          setAPCallback( std::function<void(WiFiManager*)> func );
+    //called when settings reset have been triggered
+    void          setConfigResetCallback(void(*func)(void));
     //called when settings have been changed and connection was successful
     void          setSaveConfigCallback( std::function<void()> func );
     //called when settings before have been changed and connection was successful
@@ -462,7 +464,8 @@ class WiFiManager
     
     template <typename Generic>
     void        DEBUG_WM(Generic text);
-    template <typename Generic>
+
+  template <typename Generic>
     void        DEBUG_WM(wm_debuglevel_t level,Generic text);
     template <typename Generic, typename Genericb>
     void        DEBUG_WM(Generic text,Genericb textb);
@@ -473,6 +476,7 @@ class WiFiManager
     std::function<void(WiFiManager*)> _apcallback;
     std::function<void()> _savecallback;
     std::function<void()> _presavecallback;
+    void (*_resetcallback)(void) = NULL; // @todo change to std func
 
     template <class T>
     auto optionalIPFromString(T *obj, const char *s) -> decltype(  obj->fromString(s)  ) {