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      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 
     17 package com.android.settings.applications.defaultapps;
     18 
     19 import android.content.ComponentName;
     20 import android.content.Context;
     21 import android.content.IntentFilter;
     22 import android.content.pm.ActivityInfo;
     23 import android.content.pm.ApplicationInfo;
     24 import android.content.pm.PackageManager;
     25 import android.content.pm.ResolveInfo;
     26 import android.content.pm.UserInfo;
     27 import android.os.Build;
     28 import android.text.TextUtils;
     29 
     30 import com.android.internal.logging.nano.MetricsProto;
     31 import com.android.settings.R;
     32 
     33 import java.util.ArrayList;
     34 import java.util.List;
     35 
     36 public class DefaultHomePicker extends DefaultAppPickerFragment {
     37 
     38     private String mPackageName;
     39 
     40     @Override
     41     public void onAttach(Context context) {
     42         super.onAttach(context);
     43         mPackageName = context.getPackageName();
     44     }
     45 
     46     @Override
     47     public int getMetricsCategory() {
     48         return MetricsProto.MetricsEvent.DEFAULT_HOME_PICKER;
     49     }
     50 
     51     @Override
     52     protected List<DefaultAppInfo> getCandidates() {
     53         final boolean mustSupportManagedProfile = hasManagedProfile();
     54         final List<DefaultAppInfo> candidates = new ArrayList<>();
     55         final List<ResolveInfo> homeActivities = new ArrayList<>();
     56         mPm.getHomeActivities(homeActivities);
     57 
     58         for (ResolveInfo resolveInfo : homeActivities) {
     59             final ActivityInfo info = resolveInfo.activityInfo;
     60             final ComponentName activityName = new ComponentName(info.packageName, info.name);
     61             if (info.packageName.equals(mPackageName)) {
     62                 continue;
     63             }
     64 
     65             final String summary;
     66             boolean enabled = true;
     67             if (mustSupportManagedProfile && !launcherHasManagedProfilesFeature(resolveInfo)) {
     68                 summary = getContext().getString(R.string.home_work_profile_not_supported);
     69                 enabled = false;
     70             } else {
     71                 summary = null;
     72             }
     73             final DefaultAppInfo candidate =
     74                     new DefaultAppInfo(mPm, mUserId, activityName, summary, enabled);
     75             candidates.add(candidate);
     76         }
     77         return candidates;
     78     }
     79 
     80     @Override
     81     protected String getDefaultKey() {
     82         final ArrayList<ResolveInfo> homeActivities = new ArrayList<>();
     83         final ComponentName currentDefaultHome = mPm.getHomeActivities(homeActivities);
     84         if (currentDefaultHome != null) {
     85             return currentDefaultHome.flattenToString();
     86         }
     87         return null;
     88     }
     89 
     90     @Override
     91     protected boolean setDefaultKey(String key) {
     92         if (!TextUtils.isEmpty(key)) {
     93             final ComponentName component = ComponentName.unflattenFromString(key);
     94             final List<ResolveInfo> homeActivities = new ArrayList<>();
     95             mPm.getHomeActivities(homeActivities);
     96             final List<ComponentName> allComponents = new ArrayList<>();
     97             for (ResolveInfo info : homeActivities) {
     98                 final ActivityInfo appInfo = info.activityInfo;
     99                 ComponentName activityName = new ComponentName(appInfo.packageName, appInfo.name);
    100                 allComponents.add(activityName);
    101             }
    102             mPm.replacePreferredActivity(
    103                     DefaultHomePreferenceController.HOME_FILTER,
    104                     IntentFilter.MATCH_CATEGORY_EMPTY,
    105                     allComponents.toArray(new ComponentName[0]),
    106                     component);
    107             return true;
    108         }
    109         return false;
    110     }
    111 
    112     private boolean hasManagedProfile() {
    113         final Context context = getContext();
    114         List<UserInfo> profiles = mUserManager.getProfiles(context.getUserId());
    115         for (UserInfo userInfo : profiles) {
    116             if (userInfo.isManagedProfile()) {
    117                 return true;
    118             }
    119         }
    120         return false;
    121     }
    122 
    123     private boolean launcherHasManagedProfilesFeature(ResolveInfo resolveInfo) {
    124         try {
    125             ApplicationInfo appInfo = mPm.getPackageManager().getApplicationInfo(
    126                     resolveInfo.activityInfo.packageName, 0 /* default flags */);
    127             return versionNumberAtLeastL(appInfo.targetSdkVersion);
    128         } catch (PackageManager.NameNotFoundException e) {
    129             return false;
    130         }
    131     }
    132 
    133     private boolean versionNumberAtLeastL(int versionNumber) {
    134         return versionNumber >= Build.VERSION_CODES.LOLLIPOP;
    135     }
    136 }
    137