DefaultVoiceInputPicker.java revision 03a3b518debfb3870d780a6e29c8f115013cd866 
1/*
2 * Copyright (C) 2017 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
17package com.android.settings.applications.assist;
18
19import android.content.ComponentName;
20import android.content.Context;
21import android.content.Intent;
22import android.provider.Settings;
23import android.text.TextUtils;
24
25import com.android.internal.app.AssistUtils;
26import com.android.internal.logging.nano.MetricsProto;
27import com.android.settings.R;
28import com.android.settings.applications.defaultapps.DefaultAppInfo;
29import com.android.settings.applications.defaultapps.DefaultAppPickerFragment;
30import com.android.settingslib.wrapper.PackageManagerWrapper;
31
32import java.util.ArrayList;
33import java.util.List;
34
35public class DefaultVoiceInputPicker extends DefaultAppPickerFragment {
36
37    private VoiceInputHelper mHelper;
38    private AssistUtils mAssistUtils;
39    private String mAssistRestrict;
40
41    @Override
42    public int getMetricsCategory() {
43        return MetricsProto.MetricsEvent.DEFAULT_VOICE_INPUT_PICKER;
44    }
45
46    @Override
47    public void onAttach(Context context) {
48        super.onAttach(context);
49        mAssistUtils = new AssistUtils(context);
50        mHelper = new VoiceInputHelper(context);
51        mHelper.buildUi();
52        final ComponentName assist = getCurrentAssist();
53        if (isCurrentAssistVoiceService(assist, getCurrentService(mHelper))) {
54            mAssistRestrict = assist.flattenToShortString();
55        }
56    }
57
58    @Override
59    protected int getPreferenceScreenResId() {
60        return R.xml.default_voice_settings;
61    }
62
63    @Override
64    protected List<VoiceInputDefaultAppInfo> getCandidates() {
65        final List<VoiceInputDefaultAppInfo> candidates = new ArrayList<>();
66        final Context context = getContext();
67        boolean hasEnabled = true;
68        for (VoiceInputHelper.InteractionInfo info : mHelper.mAvailableInteractionInfos) {
69            final boolean enabled = TextUtils.equals(info.key, mAssistRestrict);
70            hasEnabled |= enabled;
71            candidates.add(new VoiceInputDefaultAppInfo(context, mPm, mUserId, info, enabled));
72        }
73
74        final boolean assistIsService = !hasEnabled;
75        for (VoiceInputHelper.RecognizerInfo info : mHelper.mAvailableRecognizerInfos) {
76            final boolean enabled = !assistIsService;
77            candidates.add(new VoiceInputDefaultAppInfo(context, mPm, mUserId, info, enabled));
78        }
79        return candidates;
80    }
81
82    @Override
83    protected String getDefaultKey() {
84        final ComponentName currentService = getCurrentService(mHelper);
85        if (currentService == null) {
86            return null;
87        }
88        return currentService.flattenToShortString();
89    }
90
91    @Override
92    protected boolean setDefaultKey(String value) {
93        for (VoiceInputHelper.InteractionInfo info : mHelper.mAvailableInteractionInfos) {
94            if (TextUtils.equals(value, info.key)) {
95                Settings.Secure.putString(getContext().getContentResolver(),
96                        Settings.Secure.VOICE_INTERACTION_SERVICE, value);
97                Settings.Secure.putString(getContext().getContentResolver(),
98                        Settings.Secure.VOICE_RECOGNITION_SERVICE,
99                        new ComponentName(info.service.packageName,
100                                info.serviceInfo.getRecognitionService())
101                                .flattenToShortString());
102                return true;
103            }
104        }
105
106        for (VoiceInputHelper.RecognizerInfo info : mHelper.mAvailableRecognizerInfos) {
107            if (TextUtils.equals(value, info.key)) {
108                Settings.Secure.putString(getContext().getContentResolver(),
109                        Settings.Secure.VOICE_INTERACTION_SERVICE, "");
110                Settings.Secure.putString(getContext().getContentResolver(),
111                        Settings.Secure.VOICE_RECOGNITION_SERVICE, value);
112                return true;
113            }
114        }
115        return true;
116    }
117
118    public static ComponentName getCurrentService(VoiceInputHelper helper) {
119        if (helper.mCurrentVoiceInteraction != null) {
120            return helper.mCurrentVoiceInteraction;
121        } else if (helper.mCurrentRecognizer != null) {
122            return helper.mCurrentRecognizer;
123        } else {
124            return null;
125        }
126    }
127
128    private ComponentName getCurrentAssist() {
129        return mAssistUtils.getAssistComponentForUser(mUserId);
130    }
131
132    public static boolean isCurrentAssistVoiceService(ComponentName currentAssist,
133            ComponentName currentVoiceService) {
134        return currentAssist == null && currentVoiceService == null ||
135                currentAssist != null && currentAssist.equals(currentVoiceService);
136    }
137
138    public static class VoiceInputDefaultAppInfo extends DefaultAppInfo {
139
140        public VoiceInputHelper.BaseInfo mInfo;
141
142        public VoiceInputDefaultAppInfo(Context context, PackageManagerWrapper pm, int userId,
143                VoiceInputHelper.BaseInfo info, boolean enabled) {
144            super(context, pm, userId, info.componentName, null /* summary */, enabled);
145            mInfo = info;
146        }
147
148        @Override
149        public String getKey() {
150            return mInfo.key;
151        }
152
153        @Override
154        public CharSequence loadLabel() {
155            if (mInfo instanceof VoiceInputHelper.InteractionInfo) {
156                return mInfo.appLabel;
157            } else {
158                return mInfo.label;
159            }
160        }
161
162        public Intent getSettingIntent() {
163            if (mInfo.settings == null) {
164                return null;
165            }
166            return new Intent(Intent.ACTION_MAIN).setComponent(mInfo.settings);
167        }
168    }
169}
170