Add feature provider for face unlock

Bug: 146085546

Test: Builds
Change-Id: If5c7d57c12a3f679d81cee22fb94a53fce1de29a

src/com/android/settings/biometrics/face/FaceEnrollIntroduction.java

@@ -26,6 +26,7 @@ import android.widget.TextView;
 import com.android.settings.R;
 import com.android.settings.Utils;
 import com.android.settings.biometrics.BiometricEnrollIntroduction;
+import com.android.settings.overlay.FeatureFactory;
 import com.android.settings.password.ChooseLockSettingsHelper;
 import com.android.settingslib.RestrictedLockUtilsInternal;
 
@@ -40,12 +41,15 @@ public class FaceEnrollIntroduction extends BiometricEnrollIntroduction {
     private static final String TAG = "FaceIntro";
 
     private FaceManager mFaceManager;
+    private FaceFeatureProvider mFaceFeatureProvider;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
         mFaceManager = Utils.getFaceManagerOrNull(this);
+        mFaceFeatureProvider = FeatureFactory.getFactory(getApplicationContext())
+                .getFaceFeatureProvider();
 
         mFooterBarMixin = getLayout().getMixin(FooterBarMixin.class);
         if (WizardManagerHelper.isAnySetupWizard(getIntent())) {
@@ -87,6 +91,12 @@ public class FaceEnrollIntroduction extends BiometricEnrollIntroduction {
                     });
         }
 
+        final TextView footer2 = findViewById(R.id.face_enroll_introduction_footer_part_2);
+        final int footer2TextResource =
+                mFaceFeatureProvider.isAttentionSupported(getApplicationContext())
+                        ? R.string.security_settings_face_enroll_introduction_footer_part_2
+                        : R.string.security_settings_face_settings_footer_attention_not_supported;
+        footer2.setText(footer2TextResource);
     }
 
     @Override

src/com/android/settings/biometrics/face/FaceFeatureProvider.java

@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.settings.biometrics.face;
+
+import android.content.Context;
+
+/** Feature provider for face unlock */
+public interface FaceFeatureProvider {
+    /** Returns true if attention checking is supported. */
+    boolean isAttentionSupported(Context context);
+}

src/com/android/settings/biometrics/face/FaceFeatureProviderImpl.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.settings.biometrics.face;
+
+import android.content.Context;
+import android.provider.Settings;
+
+public class FaceFeatureProviderImpl implements FaceFeatureProvider {
+
+    @Override
+    public boolean isAttentionSupported(Context context) {
+        return true;
+    }
+}

src/com/android/settings/biometrics/face/FaceSettings.java

@@ -37,6 +37,7 @@ import com.android.settings.R;
 import com.android.settings.SettingsActivity;
 import com.android.settings.Utils;
 import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.overlay.FeatureFactory;
 import com.android.settings.password.ChooseLockSettingsHelper;
 import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settingslib.core.AbstractPreferenceController;
@@ -69,6 +70,7 @@ public class FaceSettings extends DashboardFragment {
     private List<Preference> mTogglePreferences;
     private Preference mRemoveButton;
     private Preference mEnrollButton;
+    private FaceFeatureProvider mFaceFeatureProvider;
 
     private boolean mConfirmingPassword;
 
@@ -119,6 +121,7 @@ public class FaceSettings extends DashboardFragment {
         mFaceManager = getPrefContext().getSystemService(FaceManager.class);
         mUserId = getActivity().getIntent().getIntExtra(
                 Intent.EXTRA_USER_ID, UserHandle.myUserId());
+        mFaceFeatureProvider = FeatureFactory.getFactory(getContext()).getFaceFeatureProvider();
 
         if (mUserManager.getUserInfo(mUserId).isManagedProfile()) {
             getActivity().setTitle(getActivity().getResources().getString(
@@ -192,6 +195,10 @@ public class FaceSettings extends DashboardFragment {
         final boolean hasEnrolled = mFaceManager.hasEnrolledTemplates(mUserId);
         mEnrollButton.setVisible(!hasEnrolled);
         mRemoveButton.setVisible(hasEnrolled);
+
+        if (!mFaceFeatureProvider.isAttentionSupported(getContext())) {
+            removePreference(FaceSettingsAttentionPreferenceController.KEY);
+        }
     }
 
     @Override

src/com/android/settings/biometrics/face/FaceSettingsFooterPreferenceController.java

@@ -23,6 +23,7 @@ import androidx.preference.Preference;
 
 import com.android.settings.R;
 import com.android.settings.core.BasePreferenceController;
+import com.android.settings.overlay.FeatureFactory;
 import com.android.settings.utils.AnnotationSpan;
 import com.android.settingslib.HelpUtils;
 import com.android.settingslib.widget.FooterPreference;
@@ -34,8 +35,11 @@ public class FaceSettingsFooterPreferenceController extends BasePreferenceContro
 
     private static final String ANNOTATION_URL = "url";
 
+    private FaceFeatureProvider mProvider;
+
     public FaceSettingsFooterPreferenceController(Context context, String preferenceKey) {
         super(context, preferenceKey);
+        mProvider = FeatureFactory.getFactory(context).getFaceFeatureProvider();
     }
 
     public FaceSettingsFooterPreferenceController(Context context) {
@@ -55,7 +59,12 @@ public class FaceSettingsFooterPreferenceController extends BasePreferenceContro
                 mContext, mContext.getString(R.string.help_url_face), getClass().getName());
         final AnnotationSpan.LinkInfo linkInfo =
                 new AnnotationSpan.LinkInfo(mContext, ANNOTATION_URL, helpIntent);
+
+        final int footerRes = mProvider.isAttentionSupported(mContext)
+                ? R.string.security_settings_face_settings_footer
+                : R.string.security_settings_face_settings_footer_attention_not_supported;
+
         preference.setTitle(AnnotationSpan.linkify(
-                mContext.getText(R.string.security_settings_face_settings_footer), linkInfo));
+                mContext.getText(footerRes), linkInfo));
     }
 }

src/com/android/settings/overlay/FeatureFactory.java

@@ -26,6 +26,7 @@ import com.android.settings.R;
 import com.android.settings.accounts.AccountFeatureProvider;
 import com.android.settings.applications.ApplicationFeatureProvider;
 import com.android.settings.aware.AwareFeatureProvider;
+import com.android.settings.biometrics.face.FaceFeatureProvider;
 import com.android.settings.bluetooth.BluetoothFeatureProvider;
 import com.android.settings.dashboard.DashboardFeatureProvider;
 import com.android.settings.dashboard.suggestions.SuggestionFeatureProvider;
@@ -133,6 +134,8 @@ public abstract class FeatureFactory {
 
     public abstract AwareFeatureProvider getAwareFeatureProvider();
 
+    public abstract FaceFeatureProvider getFaceFeatureProvider();
+
     public static final class FactoryNotFoundException extends RuntimeException {
         public FactoryNotFoundException(Throwable throwable) {
             super("Unable to create factory. Did you misconfigure Proguard?", throwable);

src/com/android/settings/overlay/FeatureFactoryImpl.java

@@ -30,6 +30,8 @@ import com.android.settings.applications.ApplicationFeatureProvider;
 import com.android.settings.applications.ApplicationFeatureProviderImpl;
 import com.android.settings.aware.AwareFeatureProvider;
 import com.android.settings.aware.AwareFeatureProviderImpl;
+import com.android.settings.biometrics.face.FaceFeatureProvider;
+import com.android.settings.biometrics.face.FaceFeatureProviderImpl;
 import com.android.settings.bluetooth.BluetoothFeatureProvider;
 import com.android.settings.bluetooth.BluetoothFeatureProviderImpl;
 import com.android.settings.connecteddevice.dock.DockUpdaterFeatureProviderImpl;
@@ -84,6 +86,7 @@ public class FeatureFactoryImpl extends FeatureFactory {
     private ContextualCardFeatureProvider mContextualCardFeatureProvider;
     private BluetoothFeatureProvider mBluetoothFeatureProvider;
     private AwareFeatureProvider mAwareFeatureProvider;
+    private FaceFeatureProvider mFaceFeatureProvider;
 
     @Override
     public SupportFeatureProvider getSupportFeatureProvider(Context context) {
@@ -255,4 +258,12 @@ public class FeatureFactoryImpl extends FeatureFactory {
         }
         return mAwareFeatureProvider;
     }
+
+    @Override
+    public FaceFeatureProvider getFaceFeatureProvider() {
+        if (mFaceFeatureProvider == null) {
+            mFaceFeatureProvider = new FaceFeatureProviderImpl();
+        }
+        return mFaceFeatureProvider;
+    }
 }