/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.service.autofill;
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import static android.view.autofill.Helper.sDebug;
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import android.annotation.NonNull;
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import android.annotation.TestApi;
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import android.icu.text.DateFormat;
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import android.os.Parcel;
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import android.os.Parcelable;
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import android.util.Log;
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import android.view.autofill.AutofillId;
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import android.view.autofill.AutofillValue;
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import android.widget.RemoteViews;
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import android.widget.TextView;
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import com.android.internal.util.Preconditions;
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import java.util.Date;
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/**
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* Replaces a {@link TextView} child of a {@link CustomDescription} with the contents of a field
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* that is expected to have a {@link AutofillValue#forDate(long) date value}.
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*
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* <p>For example, a transformation to display a credit card expiration date as month/year would be:
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*
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* <pre class="prettyprint">
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* new DateTransformation(ccExpDate, new java.text.SimpleDateFormat("MM/yyyy")
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* </pre>
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*/
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public final class DateTransformation extends InternalTransformation implements
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Transformation, Parcelable {
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private static final String TAG = "DateTransformation";
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private final AutofillId mFieldId;
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private final DateFormat mDateFormat;
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/**
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* Creates a new transformation.
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*
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* @param id id of the screen field.
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* @param dateFormat object used to transform the date value of the field to a String.
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*/
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public DateTransformation(@NonNull AutofillId id, @NonNull DateFormat dateFormat) {
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mFieldId = Preconditions.checkNotNull(id);
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mDateFormat = Preconditions.checkNotNull(dateFormat);
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}
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/** @hide */
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@Override
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@TestApi
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public void apply(@NonNull ValueFinder finder, @NonNull RemoteViews parentTemplate,
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int childViewId) throws Exception {
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final AutofillValue value = finder.findRawValueByAutofillId(mFieldId);
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if (value == null) {
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Log.w(TAG, "No value for id " + mFieldId);
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return;
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}
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if (!value.isDate()) {
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Log.w(TAG, "Value for " + mFieldId + " is not date: " + value);
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return;
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}
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try {
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final Date date = new Date(value.getDateValue());
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final String transformed = mDateFormat.format(date);
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if (sDebug) Log.d(TAG, "Transformed " + date + " to " + transformed);
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parentTemplate.setCharSequence(childViewId, "setText", transformed);
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} catch (Exception e) {
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Log.w(TAG, "Could not apply " + mDateFormat + " to " + value + ": " + e);
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}
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}
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/////////////////////////////////////
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// Object "contract" methods. //
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/////////////////////////////////////
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@Override
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public String toString() {
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if (!sDebug) return super.toString();
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return "DateTransformation: [id=" + mFieldId + ", format=" + mDateFormat + "]";
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}
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/////////////////////////////////////
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// Parcelable "contract" methods. //
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/////////////////////////////////////
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@Override
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public int describeContents() {
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return 0;
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}
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@Override
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public void writeToParcel(Parcel parcel, int flags) {
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parcel.writeParcelable(mFieldId, flags);
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parcel.writeSerializable(mDateFormat);
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}
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public static final @android.annotation.NonNull Parcelable.Creator<DateTransformation> CREATOR =
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new Parcelable.Creator<DateTransformation>() {
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@Override
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public DateTransformation createFromParcel(Parcel parcel) {
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return new DateTransformation(parcel.readParcelable(null),
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(DateFormat) parcel.readSerializable());
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}
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@Override
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public DateTransformation[] newArray(int size) {
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return new DateTransformation[size];
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}
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};
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}
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