Merge "Add internal API for credential text in BiometricPrompt"
diff --git a/core/java/android/hardware/biometrics/BiometricPrompt.java b/core/java/android/hardware/biometrics/BiometricPrompt.java
index ef28e6c..ac36188 100644
--- a/core/java/android/hardware/biometrics/BiometricPrompt.java
+++ b/core/java/android/hardware/biometrics/BiometricPrompt.java
@@ -75,6 +75,18 @@
     /**
      * @hide
      */
+    public static final String KEY_DEVICE_CREDENTIAL_TITLE = "device_credential_title";
+    /**
+     * @hide
+     */
+    public static final String KEY_DEVICE_CREDENTIAL_SUBTITLE = "device_credential_subtitle";
+    /**
+     * @hide
+     */
+    public static final String KEY_DEVICE_CREDENTIAL_DESCRIPTION = "device_credential_description";
+    /**
+     * @hide
+     */
     public static final String KEY_NEGATIVE_TEXT = "negative_text";
     /**
      * @hide
@@ -221,6 +233,30 @@
         }
 
         /**
+         * Sets an optional title, subtitle, and/or description that will override other text when
+         * the user is authenticating with PIN/pattern/password. Currently for internal use only.
+         * @return This builder.
+         * @hide
+         */
+        @RequiresPermission(USE_BIOMETRIC_INTERNAL)
+        @NonNull
+        public Builder setTextForDeviceCredential(
+                @Nullable CharSequence title,
+                @Nullable CharSequence subtitle,
+                @Nullable CharSequence description) {
+            if (title != null) {
+                mBundle.putCharSequence(KEY_DEVICE_CREDENTIAL_TITLE, title);
+            }
+            if (subtitle != null) {
+                mBundle.putCharSequence(KEY_DEVICE_CREDENTIAL_SUBTITLE, subtitle);
+            }
+            if (description != null) {
+                mBundle.putCharSequence(KEY_DEVICE_CREDENTIAL_DESCRIPTION, description);
+            }
+            return this;
+        }
+
+        /**
          * Required: Sets the text, executor, and click listener for the negative button on the
          * prompt. This is typically a cancel button, but may be also used to show an alternative
          * method for authentication, such as a screen that asks for a backup password.
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/AuthCredentialView.java b/packages/SystemUI/src/com/android/systemui/biometrics/AuthCredentialView.java
index 68b05e3..9de1040 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/AuthCredentialView.java
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/AuthCredentialView.java
@@ -16,6 +16,7 @@
 
 package com.android.systemui.biometrics;
 
+import android.annotation.NonNull;
 import android.content.Context;
 import android.graphics.drawable.Drawable;
 import android.hardware.biometrics.BiometricPrompt;
@@ -33,6 +34,8 @@
 import android.widget.LinearLayout;
 import android.widget.TextView;
 
+import androidx.annotation.Nullable;
+
 import com.android.internal.widget.LockPatternUtils;
 import com.android.systemui.Interpolators;
 import com.android.systemui.R;
@@ -126,18 +129,18 @@
         mHandler.postDelayed(mClearErrorRunnable, ERROR_DURATION_MS);
     }
 
-    private void setTextOrHide(TextView view, String string) {
-        if (TextUtils.isEmpty(string)) {
+    private void setTextOrHide(TextView view, CharSequence text) {
+        if (TextUtils.isEmpty(text)) {
             view.setVisibility(View.GONE);
         } else {
-            view.setText(string);
+            view.setText(text);
         }
 
         Utils.notifyAccessibilityContentChanged(mAccessibilityManager, this);
     }
 
-    private void setText(TextView view, String string) {
-        view.setText(string);
+    private void setText(TextView view, CharSequence text) {
+        view.setText(text);
     }
 
     void setEffectiveUserId(int effectiveUserId) {
@@ -173,11 +176,9 @@
     protected void onAttachedToWindow() {
         super.onAttachedToWindow();
 
-        setText(mTitleView, mBiometricPromptBundle.getString(BiometricPrompt.KEY_TITLE));
-        setTextOrHide(mSubtitleView,
-                mBiometricPromptBundle.getString(BiometricPrompt.KEY_SUBTITLE));
-        setTextOrHide(mDescriptionView,
-                mBiometricPromptBundle.getString(BiometricPrompt.KEY_DESCRIPTION));
+        setText(mTitleView, getTitle(mBiometricPromptBundle));
+        setTextOrHide(mSubtitleView, getSubtitle(mBiometricPromptBundle));
+        setTextOrHide(mDescriptionView, getDescription(mBiometricPromptBundle));
 
         final boolean isManagedProfile = Utils.isManagedProfile(mContext, mEffectiveUserId);
         final Drawable image;
@@ -279,4 +280,28 @@
             }
         }
     }
+
+    @Nullable
+    private static CharSequence getTitle(@NonNull Bundle bundle) {
+        final CharSequence credentialTitle =
+                bundle.getCharSequence(BiometricPrompt.KEY_DEVICE_CREDENTIAL_TITLE);
+        return credentialTitle != null ? credentialTitle
+                : bundle.getCharSequence(BiometricPrompt.KEY_TITLE);
+    }
+
+    @Nullable
+    private static CharSequence getSubtitle(@NonNull Bundle bundle) {
+        final CharSequence credentialSubtitle =
+                bundle.getCharSequence(BiometricPrompt.KEY_DEVICE_CREDENTIAL_SUBTITLE);
+        return credentialSubtitle != null ? credentialSubtitle
+                : bundle.getCharSequence(BiometricPrompt.KEY_SUBTITLE);
+    }
+
+    @Nullable
+    private static CharSequence getDescription(@NonNull Bundle bundle) {
+        final CharSequence credentialDescription =
+                bundle.getCharSequence(BiometricPrompt.KEY_DEVICE_CREDENTIAL_DESCRIPTION);
+        return credentialDescription != null ? credentialDescription
+                : bundle.getCharSequence(BiometricPrompt.KEY_DESCRIPTION);
+    }
 }
diff --git a/services/core/java/com/android/server/biometrics/AuthService.java b/services/core/java/com/android/server/biometrics/AuthService.java
index c9c2c96..204f072 100644
--- a/services/core/java/com/android/server/biometrics/AuthService.java
+++ b/services/core/java/com/android/server/biometrics/AuthService.java
@@ -153,7 +153,12 @@
 
             // Only allow internal clients to enable non-public options.
             if (bundle.getBoolean(BiometricPrompt.EXTRA_DISALLOW_BIOMETRICS_IF_POLICY_EXISTS)
-                    || bundle.getBoolean(BiometricPrompt.KEY_USE_DEFAULT_TITLE, false)) {
+                    || bundle.getBoolean(BiometricPrompt.KEY_USE_DEFAULT_TITLE, false)
+                    || bundle.getCharSequence(BiometricPrompt.KEY_DEVICE_CREDENTIAL_TITLE) != null
+                    || bundle.getCharSequence(
+                            BiometricPrompt.KEY_DEVICE_CREDENTIAL_SUBTITLE) != null
+                    || bundle.getCharSequence(
+                            BiometricPrompt.KEY_DEVICE_CREDENTIAL_DESCRIPTION) != null) {
                 checkInternalPermission();
             }