API to allow Autofill Providers to give detection results to PCC.

Bug: 261106877
Test: atest android.autofillservice.cts.unittests.FillResponseTest
Change-Id: I58db4be31ea13327576bb097dd77b916f721b43a

core/api/current.txt

@@ -39547,6 +39547,7 @@ package android.service.autofill {
     method @Deprecated @NonNull public android.service.autofill.FillResponse.Builder setAuthentication(@NonNull android.view.autofill.AutofillId[], @Nullable android.content.IntentSender, @Nullable android.widget.RemoteViews, @Nullable android.service.autofill.InlinePresentation, @Nullable android.service.autofill.InlinePresentation);
     method @NonNull public android.service.autofill.FillResponse.Builder setAuthentication(@NonNull android.view.autofill.AutofillId[], @Nullable android.content.IntentSender, @Nullable android.service.autofill.Presentations);
     method @NonNull public android.service.autofill.FillResponse.Builder setClientState(@Nullable android.os.Bundle);
+    method @NonNull public android.service.autofill.FillResponse.Builder setDetectedFieldClassifications(@NonNull java.util.Set<android.service.assist.classification.FieldClassification>);
     method @NonNull public android.service.autofill.FillResponse.Builder setDialogHeader(@NonNull android.widget.RemoteViews);
     method @NonNull public android.service.autofill.FillResponse.Builder setFieldClassificationIds(@NonNull android.view.autofill.AutofillId...);
     method @NonNull public android.service.autofill.FillResponse.Builder setFillDialogTriggerIds(@NonNull android.view.autofill.AutofillId...);

core/api/test-current.txt

@@ -2537,6 +2537,7 @@ package android.service.autofill {
   }
 
   public final class FillResponse implements android.os.Parcelable {
+    method @NonNull public java.util.Set<android.service.assist.classification.FieldClassification> getDetectedFieldClassifications();
     method public int getFlags();
   }
 

core/java/android/service/autofill/FillResponse.java

@@ -34,6 +34,7 @@ import android.content.pm.ParceledListSlice;
 import android.os.Bundle;
 import android.os.Parcel;
 import android.os.Parcelable;
+import android.service.assist.classification.FieldClassification;
 import android.view.autofill.AutofillId;
 import android.widget.RemoteViews;
 
@@ -45,6 +46,7 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import java.util.Objects;
+import java.util.Set;
 
 /**
  * Response for an {@link
@@ -113,6 +115,7 @@ public final class FillResponse implements Parcelable {
     private final @StringRes int mServiceDisplayNameResourceId;
     private final boolean mShowFillDialogIcon;
     private final boolean mShowSaveDialogIcon;
+    private final @Nullable FieldClassification[] mDetectedFieldTypes;
 
     private FillResponse(@NonNull Builder builder) {
         mDatasets = (builder.mDatasets != null) ? new ParceledListSlice<>(builder.mDatasets) : null;
@@ -140,6 +143,14 @@ public final class FillResponse implements Parcelable {
         mServiceDisplayNameResourceId = builder.mServiceDisplayNameResourceId;
         mShowFillDialogIcon = builder.mShowFillDialogIcon;
         mShowSaveDialogIcon = builder.mShowSaveDialogIcon;
+        mDetectedFieldTypes = builder.mDetectedFieldTypes;
+    }
+
+    /** @hide */
+    @TestApi
+    @NonNull
+    public Set<FieldClassification> getDetectedFieldClassifications() {
+        return Set.of(mDetectedFieldTypes);
     }
 
     /** @hide */
@@ -312,6 +323,28 @@ public final class FillResponse implements Parcelable {
         private int mServiceDisplayNameResourceId;
         private boolean mShowFillDialogIcon = true;
         private boolean mShowSaveDialogIcon = true;
+        private FieldClassification[] mDetectedFieldTypes;
+
+        /**
+         * Adds a new {@link FieldClassification} to this response, to
+         * help the platform provide more accurate detection results.
+         *
+         * Call this when a field has been detected with a type.
+         *
+         * Altough similiarly named with {@link setFieldClassificationIds},
+         * it provides a different functionality - setFieldClassificationIds should
+         * be used when a field is only suspected to be Autofillable.
+         * This method should be used when a field is certainly Autofillable
+         * with a certain type.
+         */
+        @NonNull
+        public Builder setDetectedFieldClassifications(
+                @NonNull Set<FieldClassification> fieldInfos) {
+            throwIfDestroyed();
+            throwIfDisableAutofillCalled();
+            mDetectedFieldTypes = fieldInfos.toArray(new FieldClassification[0]);
+            return this;
+        }
 
         /**
          * Triggers a custom UI before autofilling the screen with any data set in this
@@ -1122,6 +1155,7 @@ public final class FillResponse implements Parcelable {
         parcel.writeParcelableArray(mIgnoredIds, flags);
         parcel.writeLong(mDisableDuration);
         parcel.writeParcelableArray(mFieldClassificationIds, flags);
+        parcel.writeParcelableArray(mDetectedFieldTypes, flags);
         parcel.writeInt(mIconResourceId);
         parcel.writeInt(mServiceDisplayNameResourceId);
         parcel.writeBoolean(mShowFillDialogIcon);
@@ -1192,6 +1226,12 @@ public final class FillResponse implements Parcelable {
                 builder.setFieldClassificationIds(fieldClassifactionIds);
             }
 
+            final FieldClassification[] detectedFields =
+                    parcel.readParcelableArray(null, FieldClassification.class);
+            if (detectedFields != null) {
+                builder.setDetectedFieldClassifications(Set.of(detectedFields));
+            }
+
             builder.setIconResourceId(parcel.readInt());
             builder.setServiceDisplayNameResourceId(parcel.readInt());
             builder.setShowFillDialogIcon(parcel.readBoolean());