1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
/*
* Copyright (C) 2020 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.inputmethodservice;
import static android.inputmethodservice.InputMethodService.DEBUG;
import static com.android.internal.util.function.pooled.PooledLambda.obtainMessage;
import android.annotation.NonNull;
import android.content.ComponentName;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.os.RemoteException;
import android.util.Log;
import android.view.inputmethod.InlineSuggestionsRequest;
import android.view.inputmethod.InlineSuggestionsResponse;
import com.android.internal.view.IInlineSuggestionsRequestCallback;
import com.android.internal.view.IInlineSuggestionsResponseCallback;
import java.lang.ref.WeakReference;
import java.util.function.Consumer;
import java.util.function.Supplier;
/**
* Maintains an active inline suggestion session.
*
* <p>
* Each session corresponds to one inline suggestion request, but there may be multiple callbacks
* with the inline suggestions response.
*/
class InlineSuggestionSession {
private static final String TAG = InlineSuggestionSession.class.getSimpleName();
private final Handler mHandler = new Handler(Looper.getMainLooper(), null, true);
@NonNull
private final ComponentName mComponentName;
@NonNull
private final IInlineSuggestionsRequestCallback mCallback;
@NonNull
private final InlineSuggestionsResponseCallbackImpl mResponseCallback;
@NonNull
private final Supplier<String> mClientPackageNameSupplier;
@NonNull
private final Supplier<InlineSuggestionsRequest> mRequestSupplier;
@NonNull
private final Supplier<IBinder> mHostInputTokenSupplier;
@NonNull
private final Consumer<InlineSuggestionsResponse> mResponseConsumer;
private volatile boolean mInvalidated = false;
InlineSuggestionSession(@NonNull ComponentName componentName,
@NonNull IInlineSuggestionsRequestCallback callback,
@NonNull Supplier<String> clientPackageNameSupplier,
@NonNull Supplier<InlineSuggestionsRequest> requestSupplier,
@NonNull Supplier<IBinder> hostInputTokenSupplier,
@NonNull Consumer<InlineSuggestionsResponse> responseConsumer) {
mComponentName = componentName;
mCallback = callback;
mResponseCallback = new InlineSuggestionsResponseCallbackImpl(this);
mClientPackageNameSupplier = clientPackageNameSupplier;
mRequestSupplier = requestSupplier;
mHostInputTokenSupplier = hostInputTokenSupplier;
mResponseConsumer = responseConsumer;
makeInlineSuggestionsRequest();
}
/**
* This needs to be called before creating a new session, such that the later response callbacks
* will be discarded.
*/
void invalidateSession() {
mInvalidated = true;
}
/**
* Sends an {@link InlineSuggestionsRequest} obtained from {@cocde supplier} to the current
* Autofill Session through
* {@link IInlineSuggestionsRequestCallback#onInlineSuggestionsRequest}.
*/
private void makeInlineSuggestionsRequest() {
try {
final InlineSuggestionsRequest request = mRequestSupplier.get();
if (request == null) {
if (DEBUG) {
Log.d(TAG, "onCreateInlineSuggestionsRequest() returned null request");
}
mCallback.onInlineSuggestionsUnsupported();
} else {
request.setHostInputToken(mHostInputTokenSupplier.get());
mCallback.onInlineSuggestionsRequest(request, mResponseCallback);
}
} catch (RemoteException e) {
Log.w(TAG, "makeInlinedSuggestionsRequest() remote exception:" + e);
}
}
private void handleOnInlineSuggestionsResponse(@NonNull InlineSuggestionsResponse response) {
if (mInvalidated) {
if (DEBUG) {
Log.d(TAG, "handleOnInlineSuggestionsResponse() called on invalid session");
}
return;
}
// TODO(b/149522488): checking the current focused input field to make sure we don't send
// inline responses for previous input field
if (!mComponentName.getPackageName().equals(mClientPackageNameSupplier.get())) {
if (DEBUG) {
Log.d(TAG, "handleOnInlineSuggestionsResponse() called on the wrong package name");
}
return;
}
mResponseConsumer.accept(response);
}
/**
* Internal implementation of {@link IInlineSuggestionsResponseCallback}.
*/
static final class InlineSuggestionsResponseCallbackImpl
extends IInlineSuggestionsResponseCallback.Stub {
private final WeakReference<InlineSuggestionSession> mInlineSuggestionSession;
private InlineSuggestionsResponseCallbackImpl(
InlineSuggestionSession inlineSuggestionSession) {
mInlineSuggestionSession = new WeakReference<>(inlineSuggestionSession);
}
@Override
public void onInlineSuggestionsResponse(InlineSuggestionsResponse response)
throws RemoteException {
final InlineSuggestionSession session = mInlineSuggestionSession.get();
if (session != null) {
session.mHandler.sendMessage(obtainMessage(
InlineSuggestionSession::handleOnInlineSuggestionsResponse, session,
response));
}
}
}
}
|
