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/*
* Copyright (C) 2016 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 android.app.Activity;
import android.os.RemoteException;
/**
* Handles save requests from the {@link AutofillService} into the {@link Activity} being
* autofilled.
*/
public final class SaveCallback {
private final ISaveCallback mCallback;
private boolean mCalled;
/** @hide */
SaveCallback(ISaveCallback callback) {
mCallback = callback;
}
/**
* Notifies the Android System that an
* {@link AutofillService#onSaveRequest(SaveRequest, SaveCallback)} was successfully handled
* by the service.
*
* <p>If the service could not handle the request right away—for example, because it must
* launch an activity asking the user to authenticate first or because the network is
* down—it should still call {@link #onSuccess()}.
*
* @throws RuntimeException if an error occurred while calling the Android System.
*/
public void onSuccess() {
assertNotCalled();
mCalled = true;
try {
mCallback.onSuccess();
} catch (RemoteException e) {
e.rethrowAsRuntimeException();
}
}
/**
* Notifies the Android System that an
* {@link AutofillService#onSaveRequest(SaveRequest, SaveCallback)} could not be handled
* by the service.
*
* <p>This method should only be called when the service could not handle the request right away
* and could not recover or retry it. If the service could retry or recover, it could keep
* the {@link SaveRequest} and call {@link #onSuccess()} instead.
*
* <p><b>Note:</b> The Android System displays an UI with the supplied error message; if
* you prefer to show your own message, call {@link #onSuccess()} instead.
*
* @param message error message to be displayed to the user.
*
* @throws RuntimeException if an error occurred while calling the Android System.
*/
public void onFailure(CharSequence message) {
assertNotCalled();
mCalled = true;
try {
mCallback.onFailure(message);
} catch (RemoteException e) {
e.rethrowAsRuntimeException();
}
}
private void assertNotCalled() {
if (mCalled) {
throw new IllegalStateException("Already called");
}
}
}
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