1 /*
2  * Copyright (C) 2019 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.car.settings.applications.assist;
18 
19 import android.car.drivingstate.CarUxRestrictions;
20 import android.content.ComponentName;
21 import android.content.Context;
22 import android.provider.Settings;
23 import android.text.TextUtils;
24 
25 import androidx.annotation.NonNull;
26 import androidx.annotation.VisibleForTesting;
27 
28 import com.android.car.settings.applications.defaultapps.DefaultAppsPickerBasePreferenceController;
29 import com.android.car.settings.common.FragmentController;
30 import com.android.internal.app.AssistUtils;
31 import com.android.settingslib.applications.DefaultAppInfo;
32 
33 import java.util.ArrayList;
34 import java.util.List;
35 import java.util.Objects;
36 
37 /** Business logic for displaying and choosing the default voice input service. */
38 public class DefaultVoiceInputPickerPreferenceController extends
39         DefaultAppsPickerBasePreferenceController {
40 
41     private final AssistUtils mAssistUtils;
42     private final VoiceInputInfoProvider mVoiceInputInfoProvider;
43 
44     // Current assistant component name, used to restrict available voice inputs.
45     private String mAssistComponentName = null;
46 
DefaultVoiceInputPickerPreferenceController(Context context, String preferenceKey, FragmentController fragmentController, CarUxRestrictions uxRestrictions)47     public DefaultVoiceInputPickerPreferenceController(Context context, String preferenceKey,
48             FragmentController fragmentController, CarUxRestrictions uxRestrictions) {
49         this(context, preferenceKey, fragmentController, uxRestrictions, new AssistUtils(context),
50                 new VoiceInputInfoProvider(context));
51     }
52 
53     @VisibleForTesting
DefaultVoiceInputPickerPreferenceController(Context context, String preferenceKey, FragmentController fragmentController, CarUxRestrictions uxRestrictions, AssistUtils assistUtils, VoiceInputInfoProvider voiceInputInfoProvider)54     DefaultVoiceInputPickerPreferenceController(Context context, String preferenceKey,
55             FragmentController fragmentController, CarUxRestrictions uxRestrictions,
56             AssistUtils assistUtils, VoiceInputInfoProvider voiceInputInfoProvider) {
57         super(context, preferenceKey, fragmentController, uxRestrictions);
58         mAssistUtils = assistUtils;
59         mVoiceInputInfoProvider = voiceInputInfoProvider;
60         if (Objects.equals(mAssistUtils.getAssistComponentForUser(getCurrentProcessUserId()),
61                 VoiceInputUtils.getCurrentService(getContext()))) {
62             ComponentName cn = mAssistUtils.getAssistComponentForUser(getCurrentProcessUserId());
63             if (cn != null) {
64                 mAssistComponentName = cn.flattenToString();
65             }
66         }
67     }
68 
69     @NonNull
70     @Override
getCandidates()71     protected List<DefaultAppInfo> getCandidates() {
72         List<DefaultAppInfo> candidates = new ArrayList<>();
73         for (VoiceInputInfoProvider.VoiceInteractionInfo info :
74                 mVoiceInputInfoProvider.getVoiceInteractionInfoList()) {
75             boolean enabled = TextUtils.equals(info.getComponentName().flattenToString(),
76                     mAssistComponentName);
77             candidates.add(
78                     new DefaultVoiceInputServiceInfo(getContext(), getContext().getPackageManager(),
79                             getCurrentProcessUserId(), info, enabled));
80         }
81 
82         for (VoiceInputInfoProvider.VoiceRecognitionInfo info :
83                 mVoiceInputInfoProvider.getVoiceRecognitionInfoList()) {
84             candidates.add(
85                     new DefaultVoiceInputServiceInfo(getContext(), getContext().getPackageManager(),
86                             getCurrentProcessUserId(), info, /* enabled= */ true));
87         }
88         return candidates;
89     }
90 
91     @Override
getCurrentDefaultKey()92     protected String getCurrentDefaultKey() {
93         ComponentName cn = VoiceInputUtils.getCurrentService(getContext());
94         if (cn == null) {
95             return null;
96         }
97         return cn.flattenToString();
98     }
99 
100     @Override
setCurrentDefault(String key)101     protected void setCurrentDefault(String key) {
102         ComponentName cn = ComponentName.unflattenFromString(key);
103         VoiceInputInfoProvider.VoiceInputInfo info = mVoiceInputInfoProvider.getInfoForComponent(
104                 cn);
105 
106         if (info instanceof VoiceInputInfoProvider.VoiceInteractionInfo) {
107             VoiceInputInfoProvider.VoiceInteractionInfo interactionInfo =
108                     (VoiceInputInfoProvider.VoiceInteractionInfo) info;
109             Settings.Secure.putString(getContext().getContentResolver(),
110                     Settings.Secure.VOICE_INTERACTION_SERVICE, key);
111             Settings.Secure.putString(getContext().getContentResolver(),
112                     Settings.Secure.VOICE_RECOGNITION_SERVICE,
113                     new ComponentName(interactionInfo.getPackageName(),
114                             interactionInfo.getRecognitionService())
115                             .flattenToString());
116         } else if (info instanceof VoiceInputInfoProvider.VoiceRecognitionInfo) {
117             Settings.Secure.putString(getContext().getContentResolver(),
118                     Settings.Secure.VOICE_INTERACTION_SERVICE, "");
119             Settings.Secure.putString(getContext().getContentResolver(),
120                     Settings.Secure.VOICE_RECOGNITION_SERVICE, key);
121         }
122     }
123 
124     @Override
includeNonePreference()125     protected boolean includeNonePreference() {
126         return false;
127     }
128 }
129