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      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 package com.android.launcher3.model;
     17 
     18 import android.content.ComponentName;
     19 import android.os.UserHandle;
     20 
     21 import com.android.launcher3.AllAppsList;
     22 import com.android.launcher3.AppInfo;
     23 import com.android.launcher3.IconCache;
     24 import com.android.launcher3.ItemInfo;
     25 import com.android.launcher3.LauncherAppState;
     26 import com.android.launcher3.LauncherModel.CallbackTask;
     27 import com.android.launcher3.LauncherModel.Callbacks;
     28 import com.android.launcher3.LauncherSettings;
     29 import com.android.launcher3.ShortcutInfo;
     30 
     31 import java.util.ArrayList;
     32 import java.util.HashSet;
     33 
     34 /**
     35  * Handles changes due to cache updates.
     36  */
     37 public class CacheDataUpdatedTask extends BaseModelUpdateTask {
     38 
     39     public static final int OP_CACHE_UPDATE = 1;
     40     public static final int OP_SESSION_UPDATE = 2;
     41 
     42     private final int mOp;
     43     private final UserHandle mUser;
     44     private final HashSet<String> mPackages;
     45 
     46     public CacheDataUpdatedTask(int op, UserHandle user, HashSet<String> packages) {
     47         mOp = op;
     48         mUser = user;
     49         mPackages = packages;
     50     }
     51 
     52     @Override
     53     public void execute(LauncherAppState app, BgDataModel dataModel, AllAppsList apps) {
     54         IconCache iconCache = app.getIconCache();
     55 
     56         final ArrayList<AppInfo> updatedApps = new ArrayList<>();
     57 
     58         ArrayList<ShortcutInfo> updatedShortcuts = new ArrayList<>();
     59         synchronized (dataModel) {
     60             for (ItemInfo info : dataModel.itemsIdMap) {
     61                 if (info instanceof ShortcutInfo && mUser.equals(info.user)) {
     62                     ShortcutInfo si = (ShortcutInfo) info;
     63                     ComponentName cn = si.getTargetComponent();
     64                     if (si.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION
     65                             && isValidShortcut(si) && cn != null
     66                             && mPackages.contains(cn.getPackageName())) {
     67                         iconCache.getTitleAndIcon(si, si.usingLowResIcon);
     68                         updatedShortcuts.add(si);
     69                     }
     70                 }
     71             }
     72             apps.updateIconsAndLabels(mPackages, mUser, updatedApps);
     73         }
     74         bindUpdatedShortcuts(updatedShortcuts, mUser);
     75 
     76         if (!updatedApps.isEmpty()) {
     77             scheduleCallbackTask(new CallbackTask() {
     78                 @Override
     79                 public void execute(Callbacks callbacks) {
     80                     callbacks.bindAppsAddedOrUpdated(updatedApps);
     81                 }
     82             });
     83         }
     84     }
     85 
     86     public boolean isValidShortcut(ShortcutInfo si) {
     87         switch (mOp) {
     88             case OP_CACHE_UPDATE:
     89                 return true;
     90             case OP_SESSION_UPDATE:
     91                 return si.hasPromiseIconUi();
     92             default:
     93                 return false;
     94         }
     95     }
     96 }
     97