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
17package com.android.launcher3.model;
18
19import android.content.BroadcastReceiver;
20import android.content.Context;
21import android.content.Intent;
22import android.os.UserHandle;
23
24import com.android.launcher3.LauncherAppState;
25import com.android.launcher3.LauncherModel;
26import com.android.launcher3.compat.LauncherAppsCompat;
27import com.android.launcher3.util.MultiHashMap;
28import com.android.launcher3.util.PackageManagerHelper;
29
30import java.util.ArrayList;
31import java.util.HashSet;
32import 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 */
41public 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(LauncherAppState app,
48            MultiHashMap<UserHandle, String> packages) {
49        mModel = app.getModel();
50        mContext = app.getContext();
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