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