1 /*
2  * Copyright (C) 2016 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package android.service.autofill;
18 
19 import android.app.Activity;
20 import android.os.RemoteException;
21 
22 /**
23  * Handles save requests from the {@link AutofillService} into the {@link Activity} being
24  * autofilled.
25  */
26 public final class SaveCallback {
27     private final ISaveCallback mCallback;
28     private boolean mCalled;
29 
30     /** @hide */
SaveCallback(ISaveCallback callback)31     SaveCallback(ISaveCallback callback) {
32         mCallback = callback;
33     }
34 
35     /**
36      * Notifies the Android System that an
37      * {@link AutofillService#onSaveRequest(SaveRequest, SaveCallback)} was successfully fulfilled
38      * by the service.
39      *
40      * @throws RuntimeException if an error occurred while calling the Android System.
41      */
onSuccess()42     public void onSuccess() {
43         assertNotCalled();
44         mCalled = true;
45         try {
46             mCallback.onSuccess();
47         } catch (RemoteException e) {
48             e.rethrowAsRuntimeException();
49         }
50     }
51 
52     /**
53      * Notifies the Android System that an
54      * {@link AutofillService#onSaveRequest(SaveRequest, SaveCallback)} could not be fulfilled
55      * by the service.
56      *
57      * @param message error message to be displayed to the user.
58      *
59      * @throws RuntimeException if an error occurred while calling the Android System.
60      */
onFailure(CharSequence message)61     public void onFailure(CharSequence message) {
62         assertNotCalled();
63         mCalled = true;
64         try {
65             mCallback.onFailure(message);
66         } catch (RemoteException e) {
67             e.rethrowAsRuntimeException();
68         }
69     }
70 
assertNotCalled()71     private void assertNotCalled() {
72         if (mCalled) {
73             throw new IllegalStateException("Already called");
74         }
75     }
76 }
77