NetworkRequestDialog: Exit the dialog on connect failure

Connection failure (similar to connection success) is the end of the
processng of a request. We should dismiss the dialog on connection
failure.

Bug: 158844146
Test: Manual tests - Simulate connection failure and ensure that the
dialog vanishes with a toast.

Change-Id: I625ca76298ed549dbed76d398aea0c957c9102fc

res/values/strings.xml

@@ -11836,6 +11836,8 @@
     <string name="network_connection_errorstate_dialog_message">Something came up. The application has cancelled the request to choose a device.</string>
     <!-- Toast message when connection is successful [CHAR LIMIT=30] -->
     <string name="network_connection_connect_successful">Connection successful</string>
+    <!-- Toast message when connection is failure [CHAR LIMIT=30] -->
+    <string name="network_connection_connect_failure">Connection failed</string>
     <!-- Neutral button for Network connection request Dialog [CHAR LIMIT=30] -->
     <string name="network_connection_request_dialog_showall">Show all</string>
     <!-- Message for Network connection searching progress Dialog. Searching for wifi ap. [CHAR LIMIT=40] -->

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

@@ -217,13 +217,12 @@ public class NetworkRequestDialogActivity extends FragmentActivity implements
 
     @Override
     public void onUserSelectionConnectFailure(WifiConfiguration wificonfiguration) {
-        if (mIsSpecifiedSsid) {
-            showSingleSsidRequestDialog(
-                    WifiInfo.sanitizeSsid(mMatchedConfig.SSID), true /* isTryAgain */);
-            return;
+        if (!isFinishing()) {
+            Toast.makeText(this, R.string.network_connection_connect_failure, Toast.LENGTH_SHORT)
+                    .show();
+            setResult(RESULT_OK);
+            finish();
         }
-
-        mDialogFragment.onUserSelectionConnectFailure(wificonfiguration);
     }
 
     // Called when user click "Connect" button. Called by

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

@@ -21,7 +21,6 @@ import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.net.wifi.ScanResult;
-import android.net.wifi.WifiConfiguration;
 import android.net.wifi.WifiManager.NetworkRequestUserSelectionCallback;
 
 import androidx.annotation.NonNull;
@@ -91,7 +90,4 @@ abstract public class NetworkRequestDialogBaseFragment extends InstrumentedDialo
 
     protected void onMatch(List<ScanResult> scanResults) {
     }
-
-    protected void onUserSelectionConnectFailure(WifiConfiguration wificonfiguration) {
-    }
 }

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

@@ -324,11 +324,6 @@ public class NetworkRequestDialogFragment extends NetworkRequestDialogBaseFragme
         }
     }
 
-    @Override
-    public void onUserSelectionConnectFailure(WifiConfiguration wificonfiguration) {
-        // Do nothing when selection is failed, let user could try again easily.
-    }
-
     @VisibleForTesting
     final class FilterWifiTracker {
         private final List<String> mAccessPointKeys;

tests/robotests/src/com/android/settings/wifi/NetworkRequestDialogActivityTest.java

@@ -230,4 +230,13 @@ public class NetworkRequestDialogActivityTest {
         assertThat(mActivity.mProgressDialog).isNull();
         assertThat(mActivity.mDialogFragment).isNull();
     }
+
+    @Test
+    public void updateAccessPointList_onUserSelectionConnectFailure_shouldFinishActivity() {
+        final WifiConfiguration config = new WifiConfiguration();
+        config.SSID = "Test AP 3";
+        mActivity.onUserSelectionConnectFailure(config);
+
+        verify(mActivity).finish();
+    }
 }