Add accessibility for Face

Bug: 111548033

Test: manual
Change-Id: I6638d471f5c6de76934b90d131a221813a38d2b3

src/com/android/settings/biometrics/BiometricEnrollBase.java

@@ -40,8 +40,10 @@ import com.google.android.setupdesign.GlifLayout;
  */
 public abstract class BiometricEnrollBase extends InstrumentedActivity
         implements View.OnClickListener {
-    public static final String EXTRA_KEY_LAUNCHED_CONFIRM = "launched_confirm_lock";
 
+    public static final String EXTRA_KEY_LAUNCHED_CONFIRM = "launched_confirm_lock";
+    public static final String EXTRA_KEY_REQUIRE_VISION = "accessibility_vision";
+    public static final String EXTRA_KEY_REQUIRE_DIVERSITY = "accessibility_diversity";
 
     /**
      * Used by the choose fingerprint wizard to indicate the wizard is

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

@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2018 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.content.res.TypedArray;
+import android.util.AttributeSet;
+import android.view.LayoutInflater;
+import android.widget.LinearLayout;
+import android.widget.Switch;
+import android.widget.TextView;
+
+import com.android.settings.R;
+
+/**
+ * A layout that contains a start-justified title, and an end-justified switch.
+ */
+public class FaceEnrollAccessibilityToggle extends LinearLayout {
+
+    private Switch mSwitch;
+
+    public FaceEnrollAccessibilityToggle(Context context) {
+        this(context, null /* attrs */);
+    }
+
+    public FaceEnrollAccessibilityToggle(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public FaceEnrollAccessibilityToggle(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+
+        LayoutInflater.from(context).inflate(R.layout.face_enroll_accessibility_toggle,
+                this, true /* attachToRoot */);
+
+        final TypedArray a =
+                context.obtainStyledAttributes(attrs, R.styleable.FaceEnrollAccessibilityToggle);
+        try {
+            final CharSequence title =
+                    a.getText(R.styleable.FaceEnrollAccessibilityToggle_messageText);
+            final TextView titleTextView = findViewById(R.id.title);
+            titleTextView.setText(title);
+        } finally {
+            a.recycle();
+        }
+        mSwitch = findViewById(R.id.toggle);
+    }
+
+    public boolean isChecked() {
+        return mSwitch.isChecked();
+    }
+}

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

@@ -29,11 +29,12 @@ import android.widget.TextView;
 
 import com.android.internal.logging.nano.MetricsProto;
 import com.android.settings.R;
-import com.android.settings.Utils;
+import com.android.settings.biometrics.BiometricEnrollBase;
 import com.android.settings.biometrics.BiometricEnrollSidecar;
 import com.android.settings.biometrics.BiometricErrorDialog;
 import com.android.settings.biometrics.BiometricsEnrollEnrolling;
-import com.android.settings.password.ChooseLockSettingsHelper;
+
+import java.util.ArrayList;
 
 
 public class FaceEnrollEnrolling extends BiometricsEnrollEnrolling {
@@ -46,6 +47,8 @@ public class FaceEnrollEnrolling extends BiometricsEnrollEnrolling {
     private Interpolator mLinearOutSlowInInterpolator;
     private FaceEnrollPreviewFragment mPreviewFragment;
 
+    private ArrayList<Integer> mDisabledFeatures = new ArrayList<>();
+
     private FaceFeatureProvider.Listener mListener = new FaceFeatureProvider.Listener() {
         @Override
         public void onEnrolled() {
@@ -91,6 +94,13 @@ public class FaceEnrollEnrolling extends BiometricsEnrollEnrolling {
         Button skipButton = findViewById(R.id.skip_button);
         skipButton.setOnClickListener(this);
 
+        if (!getIntent().getBooleanExtra(BiometricEnrollBase.EXTRA_KEY_REQUIRE_DIVERSITY, true)) {
+            mDisabledFeatures.add(FaceManager.FEATURE_REQUIRE_REQUIRE_DIVERSITY);
+        }
+        if (!getIntent().getBooleanExtra(BiometricEnrollBase.EXTRA_KEY_REQUIRE_VISION, true)) {
+            mDisabledFeatures.add(FaceManager.FEATURE_REQUIRE_ATTENTION);
+        }
+
         startEnrollment();
     }
 
@@ -114,7 +124,12 @@ public class FaceEnrollEnrolling extends BiometricsEnrollEnrolling {
 
     @Override
     protected BiometricEnrollSidecar getSidecar() {
-        return new FaceEnrollSidecar();
+        final int[] disabledFeatures = new int[mDisabledFeatures.size()];
+        for (int i = 0; i < mDisabledFeatures.size(); i++) {
+            disabledFeatures[i] = mDisabledFeatures.get(i);
+        }
+
+        return new FaceEnrollSidecar(disabledFeatures);
     }
 
     @Override

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

@@ -20,7 +20,9 @@ import android.app.admin.DevicePolicyManager;
 import android.content.Intent;
 import android.hardware.face.FaceManager;
 import android.os.Bundle;
+import android.view.View;
 import android.widget.Button;
+import android.widget.LinearLayout;
 import android.widget.TextView;
 
 import com.android.internal.logging.nano.MetricsProto;
@@ -37,11 +39,22 @@ public class FaceEnrollIntroduction extends BiometricEnrollIntroduction {
     private static final String TAG = "FaceIntro";
 
     private FaceManager mFaceManager;
+    private FaceEnrollAccessibilityToggle mSwitchVision;
+    private FaceEnrollAccessibilityToggle mSwitchDiversity;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         mFaceManager = Utils.getFaceManagerOrNull(this);
+        final LinearLayout accessibilityLayout = findViewById(R.id.accessibility_layout);
+        final Button accessibilityButton = findViewById(R.id.accessibility_button);
+        accessibilityButton.setOnClickListener(view -> {
+            accessibilityButton.setVisibility(View.INVISIBLE);
+            accessibilityLayout.setVisibility(View.VISIBLE);
+        });
+
+        mSwitchVision = findViewById(R.id.toggle_vision);
+        mSwitchDiversity = findViewById(R.id.toggle_diversity);
     }
 
     @Override
@@ -116,7 +129,10 @@ public class FaceEnrollIntroduction extends BiometricEnrollIntroduction {
 
     @Override
     protected Intent getEnrollingIntent() {
-        return new Intent(this, FaceEnrollEnrolling.class);
+        final Intent intent = new Intent(this, FaceEnrollEnrolling.class);
+        intent.putExtra(EXTRA_KEY_REQUIRE_VISION, mSwitchVision.isChecked());
+        intent.putExtra(EXTRA_KEY_REQUIRE_DIVERSITY, mSwitchDiversity.isChecked());
+        return intent;
     }
 
     @Override

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

@@ -24,13 +24,22 @@ import com.android.internal.logging.nano.MetricsProto;
 import com.android.settings.Utils;
 import com.android.settings.biometrics.BiometricEnrollSidecar;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+
 /**
  * Sidecar fragment to handle the state around face enrollment
  */
 public class FaceEnrollSidecar extends BiometricEnrollSidecar {
 
+    private final int[] mDisabledFeatures;
+
     private FaceManager mFaceManager;
 
+    public FaceEnrollSidecar(int[] disabledFeatures) {
+        mDisabledFeatures = Arrays.copyOf(disabledFeatures, disabledFeatures.length);
+    }
+
     @Override
     public void onAttach(Activity activity) {
         super.onAttach(activity);
@@ -43,9 +52,9 @@ public class FaceEnrollSidecar extends BiometricEnrollSidecar {
         if (mUserId != UserHandle.USER_NULL) {
             mFaceManager.setActiveUser(mUserId);
         }
-        // TODO: Send the list of disabled features
+
         mFaceManager.enroll(mToken, mEnrollmentCancel,
-                mEnrollmentCallback, new int[0] /* disabledFeatures */);
+                mEnrollmentCallback, mDisabledFeatures);
     }
 
     private FaceManager.EnrollmentCallback mEnrollmentCallback