Initial implementation of the new Save APIs.
Test: manual verification with sample app (CTS tests coming later)
Bug: 62534917
Change-Id: I085a9c933bb5e8316d673976e059e13abd7098e5
diff --git a/core/java/android/service/autofill/RequiredValidators.java b/core/java/android/service/autofill/RequiredValidators.java
new file mode 100644
index 0000000..f2b7db8
--- /dev/null
+++ b/core/java/android/service/autofill/RequiredValidators.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2017 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 android.service.autofill;
+
+import static android.view.autofill.Helper.sDebug;
+
+import android.annotation.NonNull;
+import android.os.Parcel;
+import android.os.Parcelable;
+
+import com.android.internal.util.Preconditions;
+
+/**
+ * Compound validator that only returns {@code true} on {@link #isValid(ValueFinder)} if all
+ * of its subvalidators return {@code true} as well.
+ *
+ * <p>Used to implement an {@code AND} logical operation.
+ *
+ * @hide
+ */
+final class RequiredValidators extends InternalValidator {
+
+ private final InternalValidator[] mValidators;
+
+ RequiredValidators(@NonNull InternalValidator[] validators) {
+ mValidators = Preconditions.checkArrayElementsNotNull(validators, "validators");
+ }
+
+ @Override
+ public boolean isValid(@NonNull ValueFinder finder) {
+ if (mValidators == null) {
+ return true;
+ }
+ // TODO(b/62534917): handle errors, like not finding the ID
+ for (InternalValidator validator : mValidators) {
+ final boolean valid = validator.isValid(finder);
+ if (!valid) return false;
+ }
+ return true;
+ }
+
+ /////////////////////////////////////
+ // Object "contract" methods. //
+ /////////////////////////////////////
+ @Override
+ public String toString() {
+ if (!sDebug) return super.toString();
+
+ return new StringBuilder("RequiredValidators: [validators=").append(mValidators)
+ .append("]")
+ .toString();
+ }
+
+ /////////////////////////////////////
+ // Parcelable "contract" methods. //
+ /////////////////////////////////////
+ @Override
+ public int describeContents() {
+ return 0;
+ }
+
+ @Override
+ public void writeToParcel(Parcel dest, int flags) {
+ dest.writeParcelableArray(mValidators, flags);
+ }
+
+ public static final Parcelable.Creator<RequiredValidators> CREATOR =
+ new Parcelable.Creator<RequiredValidators>() {
+ @Override
+ public RequiredValidators createFromParcel(Parcel parcel) {
+ return new RequiredValidators(parcel
+ .readParcelableArray(null, InternalValidator.class));
+ }
+
+ @Override
+ public RequiredValidators[] newArray(int size) {
+ return new RequiredValidators[size];
+ }
+ };
+}