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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.annotation.Nullable;
import android.app.Activity;
import android.os.RemoteException;
/**
* Handles autofill requests from the {@link AutofillService} into the {@link Activity} being
* autofilled.
*/
public final class FillCallback {
private final IFillCallback mCallback;
private final int mRequestId;
private boolean mCalled;
/** @hide */
public FillCallback(IFillCallback callback, int requestId) {
mCallback = callback;
mRequestId = requestId;
}
/**
* Notifies the Android System that an
* {@link AutofillService#onFillRequest(FillRequest, android.os.CancellationSignal,
* FillCallback)} was successfully fulfilled by the service.
*
* @param response autofill information for that activity, or {@code null} when the activity
* cannot be autofilled (for example, if it only contains read-only fields). See
* {@link FillResponse} for examples.
*/
public void onSuccess(@Nullable FillResponse response) {
assertNotCalled();
mCalled = true;
if (response != null) {
response.setRequestId(mRequestId);
}
try {
mCallback.onSuccess(response);
} catch (RemoteException e) {
e.rethrowAsRuntimeException();
}
}
/**
* Notifies the Android System that an
* {@link AutofillService#onFillRequest(FillRequest, android.os.CancellationSignal,
* FillCallback)} could not be fulfilled by the service.
*
* @param message error message to be displayed to the user.
*/
public void onFailure(@Nullable 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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