Add option in AuthUI.SignInIntentBuilder to disable account creation (#536)

Author: Samed Ozdemir

app/src/main/java/com/firebase/uidemo/auth/AuthUiActivity.java

@@ -102,6 +102,9 @@ public class AuthUiActivity extends AppCompatActivity {
     @BindView(R.id.smartlock_enabled)
     CheckBox mEnableSmartLock;
 
+    @BindView(R.id.allow_new_email_accounts)
+    CheckBox mAllowNewEmailAccounts;
+
     @BindView(R.id.facebook_scopes_label)
     TextView mFacebookScopesLabel;
 
@@ -183,6 +186,7 @@ public void signIn(View view) {
                         .setProviders(getSelectedProviders())
                         .setTosUrl(getSelectedTosUrl())
                         .setIsSmartLockEnabled(mEnableSmartLock.isChecked())
+                        .setAllowNewEmailAccounts(mAllowNewEmailAccounts.isChecked())
                         .build(),
                 RC_SIGN_IN);
     }

app/src/main/java/com/firebase/uidemo/database/ChatActivity.java

@@ -162,7 +162,8 @@ public void populateViewHolder(ChatHolder chatView, Chat chat, int position) {
             @Override
             protected void onDataChanged() {
                 // if there are no chat messages, show a view that invites the user to add a message
-                mEmptyListView.setVisibility(mRecyclerViewAdapter.getItemCount() == 0 ? View.VISIBLE : View.INVISIBLE);
+                mEmptyListView.setVisibility(mRecyclerViewAdapter.getItemCount() == 0 ?
+                        View.VISIBLE : View.INVISIBLE);
             }
         };
 

app/src/main/res/layout/auth_ui_layout.xml

@@ -235,6 +235,13 @@
                 android:checked="true"
                 android:text="@string/enable_smartlock"/>
 
+            <CheckBox
+                android:id="@+id/allow_new_email_accounts"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:checked="true"
+                android:text="@string/allow_new_email_acccount"/>
+
         </LinearLayout>
 
     </ScrollView>

app/src/main/res/values/strings.xml

@@ -66,7 +66,8 @@
     <string name="drive_file">Drive File</string>
 
     <!-- strings for Auth UI demo activities -->
-    <string name="start_chatting">No messages. Start chatting at the bottom!</string>
-    <string name="sign_in_failed">Sign In Failed</string>
     <string name="signed_in">Signed In</string>
+    <string name="sign_in_failed">Sign In Failed</string>
+    <string name="allow_new_email_acccount">Allow account creation if email does not exist.</string>
+    <string name="start_chatting">No messages. Start chatting at the bottom!</string>
 </resources>

auth/src/main/java/com/firebase/ui/auth/AuthUI.java

@@ -517,6 +517,7 @@ public final class SignInIntentBuilder {
         private LinkedHashSet<IdpConfig> mProviders = new LinkedHashSet<>();
         private String mTosUrl;
         private boolean mIsSmartLockEnabled = true;
+        private boolean mAllowNewEmailAccounts = true;
 
         private SignInIntentBuilder() {
             mProviders.add(new IdpConfig.Builder(EMAIL_PROVIDER).build());
@@ -632,7 +633,15 @@ public FlowParameters getFlowParams() {
                                       mTheme,
                                       mLogo,
                                       mTosUrl,
-                                      mIsSmartLockEnabled);
+                                      mIsSmartLockEnabled,
+                                      mAllowNewEmailAccounts);
         }
+
+        public SignInIntentBuilder setAllowNewEmailAccounts(boolean enabled) {
+            mAllowNewEmailAccounts = enabled;
+            return this;
+        }
+
+
     }
 }

auth/src/main/java/com/firebase/ui/auth/ui/FlowParameters.java

@@ -49,19 +49,23 @@ public class FlowParameters implements Parcelable {
 
     public final boolean smartLockEnabled;
 
+    public final boolean allowNewEmailAccounts;
+
     public FlowParameters(
             @NonNull String appName,
             @NonNull List<IdpConfig> providerInfo,
             @StyleRes int themeId,
             @DrawableRes int logoId,
             @Nullable String termsOfServiceUrl,
-            boolean smartLockEnabled) {
+            boolean smartLockEnabled,
+            boolean allowNewEmailAccounts) {
         this.appName = Preconditions.checkNotNull(appName, "appName cannot be null");
         this.providerInfo = Preconditions.checkNotNull(providerInfo, "providerInfo cannot be null");
         this.themeId = themeId;
         this.logoId = logoId;
         this.termsOfServiceUrl = termsOfServiceUrl;
         this.smartLockEnabled = smartLockEnabled;
+        this.allowNewEmailAccounts = allowNewEmailAccounts;
     }
 
     @Override
@@ -72,6 +76,7 @@ public void writeToParcel(Parcel dest, int flags) {
         dest.writeInt(logoId);
         dest.writeString(termsOfServiceUrl);
         dest.writeInt(smartLockEnabled ? 1 : 0);
+        dest.writeInt(allowNewEmailAccounts ? 1 : 0);
     }
 
     @Override
@@ -88,15 +93,19 @@ public FlowParameters createFromParcel(Parcel in) {
             int logoId = in.readInt();
             String termsOfServiceUrl = in.readString();
             int smartLockEnabledInt = in.readInt();
+            int allowNewEmailAccountsInt = in.readInt();
+
             boolean smartLockEnabled = smartLockEnabledInt != 0;
+            boolean allowNewEmailAccounts = allowNewEmailAccountsInt != 0;
 
             return new FlowParameters(
                     appName,
                     providerInfo,
                     themeId,
                     logoId,
                     termsOfServiceUrl,
-                    smartLockEnabled);
+                    smartLockEnabled,
+                    allowNewEmailAccounts);
         }
 
         @Override

auth/src/main/java/com/firebase/ui/auth/ui/email/CheckEmailFragment.java

@@ -75,6 +75,7 @@ interface CheckEmailListener {
     private static final int RC_SIGN_IN = 16;
 
     private EditText mEmailEditText;
+    private TextInputLayout mEmailLayout;
 
     private EmailFieldValidator mEmailFieldValidator;
     private CheckEmailListener mListener;
@@ -100,9 +101,11 @@ public View onCreateView(LayoutInflater inflater,
         View v = inflater.inflate(R.layout.check_email_layout, container, false);
 
         // Email field and validator
+        mEmailLayout = (TextInputLayout) v.findViewById(R.id.email_layout);
         mEmailEditText = (EditText) v.findViewById(R.id.email);
-        mEmailFieldValidator = new EmailFieldValidator(
-                (TextInputLayout) v.findViewById(R.id.email_layout));
+        mEmailFieldValidator = new EmailFieldValidator(mEmailLayout);
+        mEmailLayout.setOnClickListener(this);
+        mEmailEditText.setOnClickListener(this);
 
         // "Next" button
         v.findViewById(R.id.button_next).setOnClickListener(this);
@@ -257,6 +260,8 @@ public void onClick(View view) {
 
         if (id == R.id.button_next) {
             validateAndProceed();
+        } else if (id == R.id.email_layout || id == R.id.email) {
+            mEmailLayout.setError(null);
         }
     }
 }

auth/src/main/java/com/firebase/ui/auth/ui/email/RegisterEmailActivity.java

@@ -18,6 +18,7 @@
 import android.content.Intent;
 import android.os.Bundle;
 import android.support.annotation.RestrictTo;
+import android.support.design.widget.TextInputLayout;
 import android.support.v4.app.FragmentTransaction;
 import android.view.View;
 
@@ -118,17 +119,26 @@ public void onExistingIdpUser(User user) {
 
     @Override
     public void onNewUser(User user) {
-        // New user, direct them to create an account with email/password.
-        RegisterEmailFragment fragment = RegisterEmailFragment.getInstance(
-                mActivityHelper.getFlowParams(),
-                user);
-        FragmentTransaction ft = getSupportFragmentManager().beginTransaction()
-                .replace(R.id.fragment_register_email, fragment, RegisterEmailFragment.TAG);
+        // New user, direct them to create an account with email/password
+        // if account creation is enabled in SignInIntentBuilder
+
+        boolean createAccount = mActivityHelper.getFlowParams().allowNewEmailAccounts;
+
+        TextInputLayout mEmailLayout = (TextInputLayout) findViewById(R.id.email_layout);
 
-        View v = findViewById(R.id.email_layout);
-        if (v != null) ft.addSharedElement(v, "email_field");
+        if (createAccount) {
+            RegisterEmailFragment fragment = RegisterEmailFragment.getInstance(
+                    mActivityHelper.getFlowParams(),
+                    user);
+            FragmentTransaction ft = getSupportFragmentManager().beginTransaction()
+                    .replace(R.id.fragment_register_email, fragment, RegisterEmailFragment.TAG);
 
-        ft.disallowAddToBackStack().commit();
+            if (mEmailLayout != null) ft.addSharedElement(mEmailLayout, "email_field");
+
+            ft.disallowAddToBackStack().commit();
+        } else {
+            mEmailLayout.setError(getString(R.string.error_email_does_not_exist));
+        }
     }
 
     private void setSlideAnimation() {

auth/src/test/java/com/firebase/ui/auth/testhelpers/TestHelper.java

@@ -65,6 +65,7 @@ public static FlowParameters getFlowParameters(List<String> providerIds) {
                 AuthUI.getDefaultTheme(),
                 AuthUI.NO_LOGO,
                 null,
+                true,
                 true);
     }