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      1 /*
      2  * Copyright (C) 2014 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.compat;
     18 
     19 import android.content.Context;
     20 import android.content.pm.PackageInstaller;
     21 import android.content.pm.PackageInstaller.SessionCallback;
     22 import android.content.pm.PackageInstaller.SessionInfo;
     23 import android.os.Handler;
     24 import android.util.Log;
     25 import android.util.SparseArray;
     26 
     27 import com.android.launcher3.IconCache;
     28 import com.android.launcher3.LauncherAppState;
     29 
     30 import java.util.ArrayList;
     31 import java.util.HashSet;
     32 
     33 public class PackageInstallerCompatVL extends PackageInstallerCompat implements Runnable {
     34 
     35     private static final String TAG = "PackageInstallerCompatVL";
     36     private static final boolean DEBUG = false;
     37 
     38     // All updates to these sets must happen on the {@link #mWorker} thread.
     39     private final SparseArray<SessionInfo> mPendingReplays = new SparseArray<SessionInfo>();
     40     private final HashSet<String> mPendingBadgeUpdates = new HashSet<String>();
     41 
     42     private final PackageInstaller mInstaller;
     43     private final IconCache mCache;
     44     private final Handler mWorker;
     45 
     46     private boolean mResumed;
     47     private boolean mBound;
     48 
     49     PackageInstallerCompatVL(Context context) {
     50         mInstaller = context.getPackageManager().getPackageInstaller();
     51         LauncherAppState.setApplicationContext(context.getApplicationContext());
     52         mCache = LauncherAppState.getInstance().getIconCache();
     53         mWorker = new Handler();
     54 
     55         mResumed = false;
     56         mBound = false;
     57 
     58         mInstaller.registerSessionCallback(mCallback, mWorker);
     59 
     60         // On start, send updates for all active sessions
     61         mWorker.post(new Runnable() {
     62 
     63             @Override
     64             public void run() {
     65                 for (SessionInfo info : mInstaller.getAllSessions()) {
     66                     mPendingReplays.append(info.getSessionId(), info);
     67                 }
     68             }
     69         });
     70     }
     71 
     72     @Override
     73     public HashSet<String> updateAndGetActiveSessionCache() {
     74         HashSet<String> activePackages = new HashSet<String>();
     75         UserHandleCompat user = UserHandleCompat.myUserHandle();
     76         for (SessionInfo info : mInstaller.getAllSessions()) {
     77             addSessionInfoToCahce(info, user);
     78             if (info.getAppPackageName() != null) {
     79                 activePackages.add(info.getAppPackageName());
     80             }
     81         }
     82         return activePackages;
     83     }
     84 
     85     private void addSessionInfoToCahce(SessionInfo info, UserHandleCompat user) {
     86         String packageName = info.getAppPackageName();
     87         if (packageName != null) {
     88             mCache.cachePackageInstallInfo(packageName, user, info.getAppIcon(),
     89                     info.getAppLabel());
     90         }
     91     }
     92 
     93     @Override
     94     public void onStop() {
     95         mInstaller.unregisterSessionCallback(mCallback);
     96     }
     97 
     98     @Override
     99     public void onFinishBind() {
    100         mBound = true;
    101         mWorker.post(this);
    102     }
    103 
    104     @Override
    105     public void onPause() {
    106         mResumed = false;
    107     }
    108 
    109     @Override
    110     public void onResume() {
    111         mResumed = true;
    112         mWorker.post(this);
    113     }
    114 
    115     @Override
    116     public void recordPackageUpdate(String packageName, int state, int progress) {
    117         // No op
    118     }
    119 
    120     @Override
    121     public void run() {
    122         // Called on mWorker thread.
    123         replayUpdates(null);
    124     }
    125 
    126     private void replayUpdates(PackageInstallInfo newInfo) {
    127         if (DEBUG) Log.d(TAG, "updates resumed");
    128         if (!mResumed || !mBound) {
    129             // Not yet ready
    130             return;
    131         }
    132         if ((mPendingReplays.size() == 0) && (newInfo == null)) {
    133             // Nothing to update
    134             return;
    135         }
    136 
    137         LauncherAppState app = LauncherAppState.getInstanceNoCreate();
    138         if (app == null) {
    139             // Try again later
    140             if (DEBUG) Log.d(TAG, "app is null, delaying send");
    141             return;
    142         }
    143 
    144         ArrayList<PackageInstallInfo> updates = new ArrayList<PackageInstallInfo>();
    145         if ((newInfo != null) && (newInfo.state != STATUS_INSTALLED)) {
    146             updates.add(newInfo);
    147         }
    148         for (int i = mPendingReplays.size() - 1; i >= 0; i--) {
    149             SessionInfo session = mPendingReplays.valueAt(i);
    150             if (session.getAppPackageName() != null) {
    151                 updates.add(new PackageInstallInfo(session.getAppPackageName(),
    152                         STATUS_INSTALLING,
    153                         (int) (session.getProgress() * 100)));
    154             }
    155         }
    156         mPendingReplays.clear();
    157         if (!updates.isEmpty()) {
    158             app.setPackageState(updates);
    159         }
    160 
    161         if (!mPendingBadgeUpdates.isEmpty()) {
    162             for (String pkg : mPendingBadgeUpdates) {
    163                 app.updatePackageBadge(pkg);
    164             }
    165             mPendingBadgeUpdates.clear();
    166         }
    167     }
    168 
    169     private final SessionCallback mCallback = new SessionCallback() {
    170 
    171         @Override
    172         public void onCreated(int sessionId) {
    173             pushSessionBadgeToLauncher(sessionId);
    174         }
    175 
    176         @Override
    177         public void onFinished(int sessionId, boolean success) {
    178             mPendingReplays.remove(sessionId);
    179             SessionInfo session = mInstaller.getSessionInfo(sessionId);
    180             if ((session != null) && (session.getAppPackageName() != null)) {
    181                 mPendingBadgeUpdates.remove(session.getAppPackageName());
    182                 // Replay all updates with a one time update for this installed package. No
    183                 // need to store this record for future updates, as the app list will get
    184                 // refreshed on resume.
    185                 replayUpdates(new PackageInstallInfo(session.getAppPackageName(),
    186                         success ? STATUS_INSTALLED : STATUS_FAILED, 0));
    187             }
    188         }
    189 
    190         @Override
    191         public void onProgressChanged(int sessionId, float progress) {
    192             SessionInfo session = mInstaller.getSessionInfo(sessionId);
    193             if (session != null) {
    194                 mPendingReplays.put(sessionId, session);
    195                 replayUpdates(null);
    196             }
    197         }
    198 
    199         @Override
    200         public void onActiveChanged(int sessionId, boolean active) { }
    201 
    202         @Override
    203         public void onBadgingChanged(int sessionId) {
    204             pushSessionBadgeToLauncher(sessionId);
    205         }
    206 
    207         private void pushSessionBadgeToLauncher(int sessionId) {
    208             SessionInfo session = mInstaller.getSessionInfo(sessionId);
    209             if (session != null) {
    210                 addSessionInfoToCahce(session, UserHandleCompat.myUserHandle());
    211                 if (session.getAppPackageName() != null) {
    212                     mPendingBadgeUpdates.add(session.getAppPackageName());
    213                 }
    214                 mPendingReplays.put(sessionId, session);
    215                 replayUpdates(null);
    216             }
    217         }
    218     };
    219 }
    220