esp8266 2.3.0 compatability restored #576

asyncscannetworks not available in esp8266 2.3.0, adjusted server on to take cstr for backwards compatability

WiFiManager.cpp

@@ -445,18 +445,18 @@ void WiFiManager::setupConfigPortal() {
   dnsServer->start(DNS_PORT, F("*"), WiFi.softAPIP());
 
   /* Setup httpd callbacks, web pages: root, wifi config pages, SO captive portal detectors and not found. */
-  server->on((String)FPSTR(R_root), std::bind(&WiFiManager::handleRoot, this));
-  server->on((String)FPSTR(R_wifi), std::bind(&WiFiManager::handleWifi, this, true));
-  server->on((String)FPSTR(R_wifinoscan), std::bind(&WiFiManager::handleWifi, this, false));
-  server->on((String)FPSTR(R_wifisave), std::bind(&WiFiManager::handleWifiSave, this));
-  server->on((String)FPSTR(R_info), std::bind(&WiFiManager::handleInfo, this));
-  server->on((String)FPSTR(R_param), std::bind(&WiFiManager::handleParam, this));
-  server->on((String)FPSTR(R_paramsave), std::bind(&WiFiManager::handleParamSave, this));
-  server->on((String)FPSTR(R_restart), std::bind(&WiFiManager::handleReset, this));
-  server->on((String)FPSTR(R_exit), std::bind(&WiFiManager::handleExit, this));
-  server->on((String)FPSTR(R_close), std::bind(&WiFiManager::handleClose, this));
-  server->on((String)FPSTR(R_erase), std::bind(&WiFiManager::handleErase, this, false));
-  server->on((String)FPSTR(R_status), std::bind(&WiFiManager::handleWiFiStatus, this));
+  server->on(String(FPSTR(R_wifi)).c_str(),       std::bind(&WiFiManager::handleWifi, this, true));
+  server->on(String(FPSTR(R_root)).c_str(),       std::bind(&WiFiManager::handleRoot, this));
+  server->on(String(FPSTR(R_wifinoscan)).c_str(), std::bind(&WiFiManager::handleWifi, this, false));
+  server->on(String(FPSTR(R_wifisave)).c_str(),   std::bind(&WiFiManager::handleWifiSave, this));
+  server->on(String(FPSTR(R_info)).c_str(),       std::bind(&WiFiManager::handleInfo, this));
+  server->on(String(FPSTR(R_param)).c_str(),      std::bind(&WiFiManager::handleParam, this));
+  server->on(String(FPSTR(R_paramsave)).c_str(),  std::bind(&WiFiManager::handleParamSave, this));
+  server->on(String(FPSTR(R_restart)).c_str(),    std::bind(&WiFiManager::handleReset, this));
+  server->on(String(FPSTR(R_exit)).c_str(),       std::bind(&WiFiManager::handleExit, this));
+  server->on(String(FPSTR(R_close)).c_str(),      std::bind(&WiFiManager::handleClose, this));
+  server->on(String(FPSTR(R_erase)).c_str(),      std::bind(&WiFiManager::handleErase, this, false));
+  server->on(String(FPSTR(R_status)).c_str(),     std::bind(&WiFiManager::handleWiFiStatus, this));
   server->onNotFound (std::bind(&WiFiManager::handleNotFound, this));
 
   server->begin(); // Web server start
@@ -1010,9 +1010,13 @@ bool WiFiManager::WiFi_scanNetworks(bool force,bool async){
       if(async){
         DEBUG_WM(DEBUG_VERBOSE,F("WiFi Scan ASYNC started"));
         #ifdef ESP8266
+        #ifndef WM_NOASYNC // no async available < 2.4.0
         using namespace std::placeholders; // for `_1`
         WiFi.scanNetworksAsync(std::bind(&WiFiManager::WiFi_scanComplete,this,_1));
         #else
+        res = WiFi.scanNetworks();
+        #endif
+        #else
         res = WiFi.scanNetworks(true);
         #endif
         return false;

WiFiManager.h

@@ -13,13 +13,19 @@
 #ifndef WiFiManager_h
 #define WiFiManager_h
 
+#include <core_version.h>
 #include <vector>
 
 // #define WM_MDNS            // also set MDNS with sethostname
 // #define WM_FIXERASECONFIG  // use erase flash fix
 // #define WM_ERASE_NVS       // esp32 erase(true) will erase NVS 
 // #define WM_RTC             // esp32 info page will include reset reasons
 
+#ifdef ARDUINO_ESP8266_RELEASE_2_3_0
+#warning "ARDUINO_ESP8266_RELEASE_2_3_0, some WM features disabled" 
+#define WM_NOASYNC         // esp8266 no async scan wifi
+#endif
+
 // #include "soc/efuse_reg.h" // include to add efuse chip rev to info, getChipRevision() is almost always the same though, so not sure why it matters.
 
 // #define esp32autoreconnect    // implement esp32 autoreconnect event listener kludge