Fix issue: LED bar button test pressed but WiFi connection still perform.

src/AgApiClient.cpp

@@ -34,7 +34,8 @@ void AgApiClient::begin(void) {
  */
 bool AgApiClient::fetchServerConfiguration(void) {
   if (config.getConfigurationControl() ==
-      ConfigurationControl::ConfigurationControlLocal) {
+          ConfigurationControl::ConfigurationControlLocal ||
+      config.isOfflineMode()) {
     logWarning("Ignore fetch server configuration");
 
     // Clear server configuration failed flag, cause it's ignore but not

src/AgConfigure.cpp

@@ -1193,7 +1193,7 @@ int Configuration::getDisplayBrightness(void) {
 
 bool Configuration::isOfflineMode(void) {
   bool offline = jconfig[jprop_offlineMode];
-  return offline;
+  return (offline || _offlineMode);
 }
 
 void Configuration::setOfflineMode(bool offline) {
@@ -1202,6 +1202,10 @@ void Configuration::setOfflineMode(bool offline) {
   saveConfig();
 }
 
+void Configuration::setOfflineModeWithoutSave(bool offline) {
+  _offlineMode = offline;
+}
+
 bool Configuration::isDisplayBrightnessChanged(void) {
   bool changed = displayBrightnessChanged;
   displayBrightnessChanged = false;

src/AgConfigure.h

@@ -17,6 +17,7 @@ private:
   bool ledBarBrightnessChanged = false;
   bool displayBrightnessChanged = false;
   String otaNewFirmwareVersion;
+  bool _offlineMode = false;
 
   AirGradient* ag;
 
@@ -80,6 +81,7 @@ public:
   String newFirmwareVersion(void);
   bool isOfflineMode(void);
   void setOfflineMode(bool offline);
+  void setOfflineModeWithoutSave(bool offline);
 };
 
 #endif /** _AG_CONFIG_H_ */