1 /*
2  * Copyright (C) 2019 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
5  * except in compliance with the License. You may obtain a copy of the License at
6  *
7  *      http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software distributed under the
10  * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
11  * KIND, either express or implied. See the License for the specific language governing
12  * permissions and limitations under the License.
13  */
14 package com.android.car.developeroptions.applications;
15 
16 import android.app.Application;
17 import android.content.Context;
18 
19 import androidx.annotation.VisibleForTesting;
20 import androidx.preference.Preference;
21 import androidx.preference.PreferenceScreen;
22 
23 import com.android.car.developeroptions.R;
24 import com.android.car.developeroptions.core.BasePreferenceController;
25 import com.android.car.developeroptions.datausage.AppStateDataUsageBridge;
26 import com.android.car.developeroptions.datausage.AppStateDataUsageBridge.DataUsageState;
27 import com.android.car.developeroptions.datausage.DataSaverBackend;
28 import com.android.settingslib.applications.ApplicationsState;
29 import com.android.settingslib.core.lifecycle.Lifecycle;
30 import com.android.settingslib.core.lifecycle.LifecycleObserver;
31 import com.android.settingslib.core.lifecycle.events.OnDestroy;
32 import com.android.settingslib.core.lifecycle.events.OnStart;
33 import com.android.settingslib.core.lifecycle.events.OnStop;
34 
35 import java.util.ArrayList;
36 
37 public class SpecialAppAccessPreferenceController extends BasePreferenceController implements
38         AppStateBaseBridge.Callback, ApplicationsState.Callbacks, LifecycleObserver, OnStart,
39         OnStop, OnDestroy {
40 
41     @VisibleForTesting
42     ApplicationsState.Session mSession;
43 
44     private final ApplicationsState mApplicationsState;
45     private final AppStateDataUsageBridge mDataUsageBridge;
46     private final DataSaverBackend mDataSaverBackend;
47 
48     private Preference mPreference;
49     private boolean mExtraLoaded;
50 
51 
SpecialAppAccessPreferenceController(Context context, String key)52     public SpecialAppAccessPreferenceController(Context context, String key) {
53         super(context, key);
54         mApplicationsState = ApplicationsState.getInstance(
55                 (Application) context.getApplicationContext());
56         mDataSaverBackend = new DataSaverBackend(context);
57         mDataUsageBridge = new AppStateDataUsageBridge(mApplicationsState, this, mDataSaverBackend);
58     }
59 
setSession(Lifecycle lifecycle)60     public void setSession(Lifecycle lifecycle) {
61         mSession = mApplicationsState.newSession(this, lifecycle);
62     }
63 
64     @Override
getAvailabilityStatus()65     public int getAvailabilityStatus() {
66         return AVAILABLE_UNSEARCHABLE;
67     }
68 
69     @Override
displayPreference(PreferenceScreen screen)70     public void displayPreference(PreferenceScreen screen) {
71         super.displayPreference(screen);
72         mPreference = screen.findPreference(getPreferenceKey());
73     }
74 
75     @Override
onStart()76     public void onStart() {
77         mDataUsageBridge.resume();
78     }
79 
80     @Override
onStop()81     public void onStop() {
82         mDataUsageBridge.pause();
83     }
84 
85     @Override
onDestroy()86     public void onDestroy() {
87         mDataUsageBridge.release();
88     }
89 
90     @Override
updateState(Preference preference)91     public void updateState(Preference preference) {
92         updateSummary();
93     }
94 
95     @Override
onExtraInfoUpdated()96     public void onExtraInfoUpdated() {
97         mExtraLoaded = true;
98         updateSummary();
99     }
100 
updateSummary()101     private void updateSummary() {
102         if (!mExtraLoaded || mPreference == null) {
103             return;
104         }
105 
106         final ArrayList<ApplicationsState.AppEntry> allApps = mSession.getAllApps();
107         int count = 0;
108         for (ApplicationsState.AppEntry entry : allApps) {
109             if (!ApplicationsState.FILTER_DOWNLOADED_AND_LAUNCHER.filterApp(entry)) {
110                 continue;
111             }
112             if (entry.extraInfo instanceof DataUsageState
113                     && ((DataUsageState) entry.extraInfo).isDataSaverWhitelisted) {
114                 count++;
115             }
116         }
117         mPreference.setSummary(mContext.getResources().getQuantityString(
118                 R.plurals.special_access_summary, count, count));
119     }
120 
121     @Override
onRunningStateChanged(boolean running)122     public void onRunningStateChanged(boolean running) {
123     }
124 
125     @Override
onPackageListChanged()126     public void onPackageListChanged() {
127     }
128 
129     @Override
onRebuildComplete(ArrayList<ApplicationsState.AppEntry> apps)130     public void onRebuildComplete(ArrayList<ApplicationsState.AppEntry> apps) {
131     }
132 
133     @Override
onPackageIconChanged()134     public void onPackageIconChanged() {
135     }
136 
137     @Override
onPackageSizeChanged(String packageName)138     public void onPackageSizeChanged(String packageName) {
139     }
140 
141     @Override
onAllSizesComputed()142     public void onAllSizesComputed() {
143     }
144 
145     @Override
onLauncherInfoChanged()146     public void onLauncherInfoChanged() {
147     }
148 
149     @Override
onLoadEntriesCompleted()150     public void onLoadEntriesCompleted() {
151     }
152 
153 }
154