Show password field when authentication failed.

- add onAuthenticationFailure() method to prepare
  appropriate UIs.
- set "edit" boolean to true so that users can modify
  password when re-seleting a network.
- keep mStatusText shown for simplicity. It has been hidden
  during "editing" phase, but we don't need to do that any more
- modify Connect button handling so that the button
  hides/appears at appropriate time
- manage visibility state of some fields so that
  we can "reset" the status when authentication failed
- show keyboard again when password field re-appears

Bug: 3330109
Change-Id: I1cdf0573280ab46882117e21501a43a447e50b40

src/com/android/settings/wifi/WifiSettings.java

@@ -445,6 +445,10 @@ public class WifiSettings extends SettingsPreferenceFragment
                 updateConnectionState(WifiInfo.getDetailedStateOf((SupplicantState)
                         intent.getParcelableExtra(WifiManager.EXTRA_NEW_STATE)));
             }
+
+            if (mInXlSetupWizard) {
+                ((WifiSettingsForSetupWizardXL)getActivity()).onSupplicantStateChanged(intent);
+            }
         } else if (WifiManager.NETWORK_STATE_CHANGED_ACTION.equals(action)) {
             NetworkInfo info = (NetworkInfo) intent.getParcelableExtra(
                     WifiManager.EXTRA_NETWORK_INFO);
@@ -588,11 +592,11 @@ public class WifiSettings extends SettingsPreferenceFragment
                     }
                 } else if (config.networkId != INVALID_NETWORK_ID) {
                     if (mSelectedAccessPoint != null) {
-                        mWifiManager.saveNetwork(config);
+                        saveNetwork(config);
                     }
                 } else {
                     if (configController.isEdit() || requireKeyStore(config)) {
-                        mWifiManager.saveNetwork(config);
+                        saveNetwork(config);
                     } else {
                         mWifiManager.connectNetwork(config);
                     }
@@ -606,6 +610,14 @@ public class WifiSettings extends SettingsPreferenceFragment
         updateAccessPoints();
     }
 
+    private void saveNetwork(WifiConfiguration config) {
+        if (mInXlSetupWizard) {
+            ((WifiSettingsForSetupWizardXL)getActivity()).onSaveNetwork(config);
+        } else {
+            mWifiManager.saveNetwork(config);
+        }
+    }
+
     /* package */ void forget() {
         mWifiManager.forgetNetwork(mSelectedAccessPoint.networkId);