1 /*
2  * Copyright (C) 2023 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 com.android.systemui.dreams;
18 
19 import android.util.Log;
20 
21 import com.android.systemui.CoreStartable;
22 import com.android.systemui.dagger.qualifiers.SystemUser;
23 import com.android.systemui.dreams.callbacks.AssistantAttentionCallback;
24 import com.android.systemui.dreams.conditions.AssistantAttentionCondition;
25 import com.android.systemui.shared.condition.Monitor;
26 
27 import javax.inject.Inject;
28 
29 /**
30  * A {@link CoreStartable} to retain a monitor for tracking assistant attention.
31  */
32 public class AssistantAttentionMonitor implements CoreStartable {
33     private static final String TAG = "AssistAttentionMonitor";
34 
35     // We retain a reference to the monitor so it is not garbage-collected.
36     private final Monitor mConditionMonitor;
37     private final AssistantAttentionCondition mAssistantAttentionCondition;
38     private final AssistantAttentionCallback mCallback;
39 
40     @Inject
AssistantAttentionMonitor( @ystemUser Monitor monitor, AssistantAttentionCondition assistantAttentionCondition, AssistantAttentionCallback callback)41     public AssistantAttentionMonitor(
42             @SystemUser Monitor monitor,
43             AssistantAttentionCondition assistantAttentionCondition,
44             AssistantAttentionCallback callback) {
45         mConditionMonitor = monitor;
46         mAssistantAttentionCondition = assistantAttentionCondition;
47         mCallback = callback;
48 
49     }
50     @Override
start()51     public void start() {
52         if (Log.isLoggable(TAG, Log.DEBUG)) {
53             Log.d(TAG, "started");
54         }
55 
56         mConditionMonitor.addSubscription(new Monitor.Subscription.Builder(mCallback)
57                 .addCondition(mAssistantAttentionCondition)
58                 .build());
59     }
60 }
61