125 lines
4.2 KiB
Java
125 lines
4.2 KiB
Java
/*
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* Copyright (C) 2016 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 android.annotation.NonNull;
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import android.annotation.Nullable;
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import android.app.Activity;
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import android.content.IntentSender;
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import android.os.RemoteException;
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import android.util.Log;
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import java.util.Objects;
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/**
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* Handles save requests from the {@link AutofillService} into the {@link Activity} being
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* autofilled.
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*/
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public final class SaveCallback {
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private static final String TAG = "SaveCallback";
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private final ISaveCallback mCallback;
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private boolean mCalled;
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/** @hide */
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SaveCallback(ISaveCallback callback) {
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mCallback = callback;
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}
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/**
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* Notifies the Android System that an
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* {@link AutofillService#onSaveRequest(SaveRequest, SaveCallback)} was successfully handled
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* by the service.
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*
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* @throws IllegalStateException if this method, {@link #onSuccess(IntentSender)}, or
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* {@link #onFailure(CharSequence)} was already called.
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*/
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public void onSuccess() {
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onSuccessInternal(null);
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}
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/**
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* Notifies the Android System that an
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* {@link AutofillService#onSaveRequest(SaveRequest, SaveCallback)} was successfully handled
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* by the service.
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*
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* <p>This method is useful when the service requires extra work—for example, launching an
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* activity asking the user to authenticate first —before it can process the request,
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* as the intent will be launched from the context of the activity being autofilled and hence
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* will be part of that activity's stack.
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*
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* @param intentSender intent that will be launched from the context of activity being
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* autofilled.
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*
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* @throws IllegalStateException if this method, {@link #onSuccess()},
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* or {@link #onFailure(CharSequence)} was already called.
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*/
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public void onSuccess(@NonNull IntentSender intentSender) {
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onSuccessInternal(Objects.requireNonNull(intentSender));
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}
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private void onSuccessInternal(@Nullable IntentSender intentSender) {
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assertNotCalled();
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mCalled = true;
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try {
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mCallback.onSuccess(intentSender);
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} catch (RemoteException e) {
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e.rethrowAsRuntimeException();
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}
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}
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/**
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* Notifies the Android System that an
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* {@link AutofillService#onSaveRequest(SaveRequest, SaveCallback)} could not be handled
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* by the service.
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*
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* <p>This method is just used for logging purposes, the Android System won't call the service
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* again in case of failures—if you need to recover from the failure, just save the
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* {@link SaveRequest} and try again later.
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*
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* <p><b>Note: </b>for apps targeting {@link android.os.Build.VERSION_CODES#Q} or higher, this
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* method just logs the message on {@code logcat}; for apps targetting older SDKs, it also
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* displays the message to user using a {@link android.widget.Toast}.
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*
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* @param message error message. <b>Note: </b> this message should <b>not</b> contain PII
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* (Personally Identifiable Information, such as username or email address).
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*
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* @throws IllegalStateException if this method, {@link #onSuccess()},
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* or {@link #onSuccess(IntentSender)} was already called.
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*/
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public void onFailure(CharSequence message) {
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Log.w(TAG, "onFailure(): " + message);
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assertNotCalled();
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mCalled = true;
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try {
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mCallback.onFailure(message);
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} catch (RemoteException e) {
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e.rethrowAsRuntimeException();
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}
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}
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private void assertNotCalled() {
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if (mCalled) {
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throw new IllegalStateException("Already called");
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}
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}
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}
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