| /* |
| * 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.NonNull; |
| import android.annotation.Nullable; |
| import android.app.Activity; |
| import android.content.IntentSender; |
| import android.os.RemoteException; |
| import android.util.Log; |
| |
| import com.android.internal.util.Preconditions; |
| |
| /** |
| * Handles save requests from the {@link AutofillService} into the {@link Activity} being |
| * autofilled. |
| */ |
| public final class SaveCallback { |
| |
| private static final String TAG = "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. |
| * |
| * @throws IllegalStateException if this method, {@link #onSuccess(IntentSender)}, or |
| * {@link #onFailure(CharSequence)} was already called. |
| */ |
| public void onSuccess() { |
| onSuccessInternal(null); |
| } |
| |
| /** |
| * Notifies the Android System that an |
| * {@link AutofillService#onSaveRequest(SaveRequest, SaveCallback)} was successfully handled |
| * by the service. |
| * |
| * <p>This method is useful when the service requires extra work—for example, launching an |
| * activity asking the user to authenticate first —before it can process the request, |
| * as the intent will be launched from the context of the activity being autofilled and hence |
| * will be part of that activity's stack. |
| * |
| * @param intentSender intent that will be launched from the context of activity being |
| * autofilled. |
| * |
| * @throws IllegalStateException if this method, {@link #onSuccess()}, |
| * or {@link #onFailure(CharSequence)} was already called. |
| */ |
| public void onSuccess(@NonNull IntentSender intentSender) { |
| onSuccessInternal(Preconditions.checkNotNull(intentSender)); |
| } |
| |
| private void onSuccessInternal(@Nullable IntentSender intentSender) { |
| assertNotCalled(); |
| mCalled = true; |
| try { |
| mCallback.onSuccess(intentSender); |
| } 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()} or |
| * {@link #onSuccess(IntentSender)} instead. |
| * |
| * @param message error message to be displayed to the user. <b>Note: </b> this message is |
| * displayed on {@code logcat} logs and should not contain PII (Personally Identifiable |
| * Information, such as username or email address). |
| * |
| * @throws IllegalStateException if this method, {@link #onSuccess()}, |
| * or {@link #onSuccess(IntentSender)} was already called. |
| */ |
| public void onFailure(CharSequence message) { |
| Log.w(TAG, "onFailure(): " + (message == null ? null : message.length() + "_chars")); |
| assertNotCalled(); |
| mCalled = true; |
| try { |
| mCallback.onFailure(message); |
| } catch (RemoteException e) { |
| e.rethrowAsRuntimeException(); |
| } |
| } |
| |
| private void assertNotCalled() { |
| if (mCalled) { |
| throw new IllegalStateException("Already called"); |
| } |
| } |
| } |