Home | History | Annotate | Download | only in model 
      1 /*
      2  * Copyright (C) 2016 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.launcher3.model;
     18 
     19 import android.content.BroadcastReceiver;
     20 import android.content.Context;
     21 import android.content.Intent;
     22 import android.content.pm.PackageManager;
     23 import android.os.UserHandle;
     24 
     25 import com.android.launcher3.LauncherModel;
     26 import com.android.launcher3.compat.LauncherAppsCompat;
     27 import com.android.launcher3.util.MultiHashMap;
     28 import com.android.launcher3.util.PackageManagerHelper;
     29 
     30 import java.util.ArrayList;
     31 import java.util.HashSet;
     32 import java.util.Map.Entry;
     33 
     34 /**
     35  * Helper class to re-query app status when SD-card becomes available.
     36  *
     37  * During first load, just after reboot, some apps on sdcard might not be available immediately due
     38  * to some race conditions in the system. We wait for ACTION_BOOT_COMPLETED and process such
     39  * apps again.
     40  */
     41 public class SdCardAvailableReceiver extends BroadcastReceiver {
     42 
     43     private final LauncherModel mModel;
     44     private final Context mContext;
     45     private final MultiHashMap<UserHandle, String> mPackages;
     46 
     47     public SdCardAvailableReceiver(LauncherModel model, Context context,
     48             MultiHashMap<UserHandle, String> packages) {
     49         mModel = model;
     50         mContext = context;
     51         mPackages = packages;
     52     }
     53 
     54     @Override
     55     public void onReceive(Context context, Intent intent) {
     56         final LauncherAppsCompat launcherApps = LauncherAppsCompat.getInstance(context);
     57         final PackageManagerHelper pmHelper = new PackageManagerHelper(context);
     58         for (Entry<UserHandle, ArrayList<String>> entry : mPackages.entrySet()) {
     59             UserHandle user = entry.getKey();
     60 
     61             final ArrayList<String> packagesRemoved = new ArrayList<>();
     62             final ArrayList<String> packagesUnavailable = new ArrayList<>();
     63 
     64             for (String pkg : new HashSet<>(entry.getValue())) {
     65                 if (!launcherApps.isPackageEnabledForProfile(pkg, user)) {
     66                     if (pmHelper.isAppOnSdcard(pkg, user)) {
     67                         packagesUnavailable.add(pkg);
     68                     } else {
     69                         packagesRemoved.add(pkg);
     70                     }
     71                 }
     72             }
     73             if (!packagesRemoved.isEmpty()) {
     74                 mModel.onPackagesRemoved(user,
     75                         packagesRemoved.toArray(new String[packagesRemoved.size()]));
     76             }
     77             if (!packagesUnavailable.isEmpty()) {
     78                 mModel.onPackagesUnavailable(
     79                         packagesUnavailable.toArray(new String[packagesUnavailable.size()]),
     80                         user, false);
     81             }
     82         }
     83 
     84         // Unregister the broadcast receiver, just in case
     85         mContext.unregisterReceiver(this);
     86     }
     87 }
     88