Is visible

android/src/main/java/io/fullstack/oauth/OAuthManagerFragmentController.java

@@ -10,6 +10,7 @@
 
 import com.facebook.react.bridge.ReactContext;
 import com.github.scribejava.core.exceptions.OAuthConnectionException;
+import com.github.scribejava.core.model.OAuth2AccessTokenErrorResponse;
 import com.github.scribejava.core.model.OAuth1AccessToken;
 import com.github.scribejava.core.model.OAuth1RequestToken;
 import com.github.scribejava.core.model.OAuth2AccessToken;
@@ -45,6 +46,10 @@ public class OAuthManagerFragmentController {
   private Runnable onAccessToken;
   private OAuthManagerOnAccessTokenListener mListener;
 
+  public boolean webViewVisible() {
+    return this.mWebView != null && this.mWebView.isShown();
+  }
+
   private void runOnMainThread(Runnable runnable) {
     uiHandler.post(runnable);
   }
@@ -367,6 +372,10 @@ protected OAuth2AccessToken doInBackground(Void... params) {
         Log.e(TAG, "OAuth connection exception: " + ex.getMessage());
         ex.printStackTrace();
         return null;
+      } catch (OAuth2AccessTokenErrorResponse ex)
+      {
+        Log.e(TAG, "Failed to extract access token: " + ex.getMessage());
+        return null;
       } catch (IOException ex) {
         Log.e(TAG, "An exception occurred getRequestToken: " + ex.getMessage());
         ex.printStackTrace();

android/src/main/java/io/fullstack/oauth/OAuthManagerModule.java

@@ -137,25 +137,29 @@ public void onOAuth2AccessToken(final OAuth2AccessToken accessToken) {
         }
       };
 
+      OAuthManagerFragmentController ctrl = null;
+
       if (authVersion.equals("1.0")) {
         final OAuth10aService service = 
           OAuthManagerProviders.getApiFor10aProvider(providerName, cfg, params, callbackUrl);
 
-        OAuthManagerFragmentController ctrl =
+        ctrl =
           new OAuthManagerFragmentController(mReactContext, fragmentManager, providerName, service, callbackUrl);
 
         ctrl.requestAuth(cfg, listener);
       } else if (authVersion.equals("2.0")) {
         final OAuth20Service service =
           OAuthManagerProviders.getApiFor20Provider(providerName, cfg, params, callbackUrl);
 
-        OAuthManagerFragmentController ctrl =
+        ctrl =
           new OAuthManagerFragmentController(mReactContext, fragmentManager, providerName, service, callbackUrl);
 
         ctrl.requestAuth(cfg, listener);
       } else {
         Log.d(TAG, "Auth version unknown: " + (String) cfg.get("auth_version"));
       }
+
+      this.ctrlReference = ctrl;
     } catch (Exception ex) {
       Log.d(TAG, "Exception in callback " + ex.getMessage());
       exceptionCallback(ex, callback);
@@ -380,6 +384,23 @@ public void deauthorize(final String providerName, final Callback onComplete) {
     }
   }
 
+  private OAuthManagerFragmentController ctrlReference;
+
+  @ReactMethod
+  public void isVisible(final Callback callback)
+  {
+    try
+    {
+      boolean visible = this.ctrlReference != null && this.ctrlReference.webViewVisible();
+      WritableMap resp = Arguments.createMap();
+      resp.putBoolean("visible", visible);
+      callback.invoke(null, resp);
+    } catch (Exception e)
+    {
+      exceptionCallback(e, callback);
+    }
+  }
+
 
   private HashMap<String,Object> getConfiguration(
     final String providerName

react-native-oauth.js

@@ -90,6 +90,10 @@ export default class OAuthManager {
     return promisify('deauthorize')(provider);
   }
 
+  isVisible() {
+    return promisify('isVisible')();
+  }
+
   providers() {
     return OAuthManager.providers();
   }