| /** |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.android.settingslib.drawer; |
| |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.support.annotation.VisibleForTesting; |
| import android.text.TextUtils; |
| import android.util.ArrayMap; |
| import android.util.ArraySet; |
| import android.util.Log; |
| import android.util.Pair; |
| |
| import com.android.settingslib.applications.InterestingConfigChanges; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| import java.util.Set; |
| |
| import static java.lang.String.CASE_INSENSITIVE_ORDER; |
| |
| public class CategoryManager { |
| |
| private static final String TAG = "CategoryManager"; |
| |
| private static CategoryManager sInstance; |
| private final InterestingConfigChanges mInterestingConfigChanges; |
| |
| // Tile cache (key: <packageName, activityName>, value: tile) |
| private final Map<Pair<String, String>, Tile> mTileByComponentCache; |
| |
| // Tile cache (key: category key, value: category) |
| private final Map<String, DashboardCategory> mCategoryByKeyMap; |
| |
| private List<DashboardCategory> mCategories; |
| |
| public static CategoryManager get(Context context) { |
| if (sInstance == null) { |
| sInstance = new CategoryManager(context); |
| } |
| return sInstance; |
| } |
| |
| CategoryManager(Context context) { |
| mTileByComponentCache = new ArrayMap<>(); |
| mCategoryByKeyMap = new ArrayMap<>(); |
| mInterestingConfigChanges = new InterestingConfigChanges(); |
| mInterestingConfigChanges.applyNewConfig(context.getResources()); |
| } |
| |
| public synchronized DashboardCategory getTilesByCategory(Context context, String categoryKey) { |
| tryInitCategories(context); |
| |
| return mCategoryByKeyMap.get(categoryKey); |
| } |
| |
| public synchronized List<DashboardCategory> getCategories(Context context) { |
| tryInitCategories(context); |
| return mCategories; |
| } |
| |
| public synchronized void reloadAllCategories(Context context) { |
| final boolean forceClearCache = mInterestingConfigChanges.applyNewConfig( |
| context.getResources()); |
| mCategories = null; |
| tryInitCategories(context, forceClearCache); |
| } |
| |
| public synchronized void updateCategoryFromBlacklist(Set<ComponentName> tileBlacklist) { |
| if (mCategories == null) { |
| Log.w(TAG, "Category is null, skipping blacklist update"); |
| } |
| for (int i = 0; i < mCategories.size(); i++) { |
| DashboardCategory category = mCategories.get(i); |
| for (int j = 0; j < category.tiles.size(); j++) { |
| Tile tile = category.tiles.get(j); |
| if (tileBlacklist.contains(tile.intent.getComponent())) { |
| category.tiles.remove(j--); |
| } |
| } |
| } |
| } |
| |
| private synchronized void tryInitCategories(Context context) { |
| // Keep cached tiles by default. The cache is only invalidated when InterestingConfigChange |
| // happens. |
| tryInitCategories(context, false /* forceClearCache */); |
| } |
| |
| private synchronized void tryInitCategories(Context context, boolean forceClearCache) { |
| if (mCategories == null) { |
| if (forceClearCache) { |
| mTileByComponentCache.clear(); |
| } |
| mCategoryByKeyMap.clear(); |
| mCategories = TileUtils.getCategories(context, mTileByComponentCache, |
| false /* categoryDefinedInManifest */); |
| for (DashboardCategory category : mCategories) { |
| mCategoryByKeyMap.put(category.key, category); |
| } |
| backwardCompatCleanupForCategory(mTileByComponentCache, mCategoryByKeyMap); |
| normalizePriority(context, mCategoryByKeyMap); |
| filterDuplicateTiles(mCategoryByKeyMap); |
| } |
| } |
| |
| @VisibleForTesting |
| synchronized void backwardCompatCleanupForCategory( |
| Map<Pair<String, String>, Tile> tileByComponentCache, |
| Map<String, DashboardCategory> categoryByKeyMap) { |
| // A package can use a) CategoryKey, b) old category keys, c) both. |
| // Check if a package uses old category key only. |
| // If yes, map them to new category key. |
| |
| // Build a package name -> tile map first. |
| final Map<String, List<Tile>> packageToTileMap = new HashMap<>(); |
| for (Entry<Pair<String, String>, Tile> tileEntry : tileByComponentCache.entrySet()) { |
| final String packageName = tileEntry.getKey().first; |
| List<Tile> tiles = packageToTileMap.get(packageName); |
| if (tiles == null) { |
| tiles = new ArrayList<>(); |
| packageToTileMap.put(packageName, tiles); |
| } |
| tiles.add(tileEntry.getValue()); |
| } |
| |
| for (Entry<String, List<Tile>> entry : packageToTileMap.entrySet()) { |
| final List<Tile> tiles = entry.getValue(); |
| // Loop map, find if all tiles from same package uses old key only. |
| boolean useNewKey = false; |
| boolean useOldKey = false; |
| for (Tile tile : tiles) { |
| if (CategoryKey.KEY_COMPAT_MAP.containsKey(tile.category)) { |
| useOldKey = true; |
| } else { |
| useNewKey = true; |
| break; |
| } |
| } |
| // Uses only old key, map them to new keys one by one. |
| if (useOldKey && !useNewKey) { |
| for (Tile tile : tiles) { |
| final String newCategoryKey = CategoryKey.KEY_COMPAT_MAP.get(tile.category); |
| tile.category = newCategoryKey; |
| // move tile to new category. |
| DashboardCategory newCategory = categoryByKeyMap.get(newCategoryKey); |
| if (newCategory == null) { |
| newCategory = new DashboardCategory(); |
| categoryByKeyMap.put(newCategoryKey, newCategory); |
| } |
| newCategory.tiles.add(tile); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Normalize priority values on tiles across injected from all apps to make sure they don't set |
| * the same priority value. However internal tiles' priority remains unchanged. |
| * <p/> |
| * A list of tiles are considered normalized when their priority value increases in a linear |
| * scan. |
| */ |
| @VisibleForTesting |
| synchronized void normalizePriority(Context context, |
| Map<String, DashboardCategory> categoryByKeyMap) { |
| for (Entry<String, DashboardCategory> categoryEntry : categoryByKeyMap.entrySet()) { |
| normalizePriorityForExternalTiles(context, categoryEntry.getValue()); |
| } |
| } |
| |
| /** |
| * Filter out duplicate tiles from category. Duplicate tiles are the ones pointing to the |
| * same intent. |
| */ |
| @VisibleForTesting |
| synchronized void filterDuplicateTiles(Map<String, DashboardCategory> categoryByKeyMap) { |
| for (Entry<String, DashboardCategory> categoryEntry : categoryByKeyMap.entrySet()) { |
| final DashboardCategory category = categoryEntry.getValue(); |
| final int count = category.tiles.size(); |
| final Set<ComponentName> components = new ArraySet<>(); |
| for (int i = count - 1; i >= 0; i--) { |
| final Tile tile = category.tiles.get(i); |
| if (tile.intent == null) { |
| continue; |
| } |
| final ComponentName tileComponent = tile.intent.getComponent(); |
| if (components.contains(tileComponent)) { |
| category.tiles.remove(i); |
| } else { |
| components.add(tileComponent); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Normalize priority value for tiles within a single {@code DashboardCategory}. |
| * |
| * @see #normalizePriority(Context, Map) |
| */ |
| private synchronized void normalizePriorityForExternalTiles(Context context, |
| DashboardCategory dashboardCategory) { |
| final String skipPackageName = context.getPackageName(); |
| |
| // Sort tiles based on [package, priority within package] |
| Collections.sort(dashboardCategory.tiles, (tile1, tile2) -> { |
| final String package1 = tile1.intent.getComponent().getPackageName(); |
| final String package2 = tile2.intent.getComponent().getPackageName(); |
| final int packageCompare = CASE_INSENSITIVE_ORDER.compare(package1, package2); |
| // First sort by package name |
| if (packageCompare != 0) { |
| return packageCompare; |
| } else if (TextUtils.equals(package1, skipPackageName)) { |
| return 0; |
| } |
| // Then sort by priority |
| return tile1.priority - tile2.priority; |
| }); |
| // Update priority for all items so no package define the same priority value. |
| final int count = dashboardCategory.tiles.size(); |
| for (int i = 0; i < count; i++) { |
| final String packageName = |
| dashboardCategory.tiles.get(i).intent.getComponent().getPackageName(); |
| if (TextUtils.equals(packageName, skipPackageName)) { |
| // We skip this tile because it's a intent pointing to our own app. We trust the |
| // priority is set correctly, so don't normalize. |
| continue; |
| } |
| dashboardCategory.tiles.get(i).priority = i; |
| } |
| } |
| } |