Winson Chung | 0499834 | 2011-01-05 13:54:43 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 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 | |
Daniel Sandler | 325dc23 | 2013-06-05 22:57:57 -0400 | [diff] [blame] | 17 | package com.android.launcher3; |
Winson Chung | 0499834 | 2011-01-05 13:54:43 -0800 | [diff] [blame] | 18 | |
| 19 | import java.util.ArrayList; |
| 20 | import java.util.HashMap; |
| 21 | import java.util.HashSet; |
| 22 | import java.util.List; |
| 23 | |
| 24 | import android.appwidget.AppWidgetProviderInfo; |
| 25 | import android.content.ComponentName; |
| 26 | import android.content.pm.ComponentInfo; |
| 27 | import android.content.pm.ResolveInfo; |
| 28 | import android.graphics.Bitmap; |
| 29 | |
| 30 | /** |
| 31 | * Simple cache mechanism for PagedView outlines. |
| 32 | */ |
| 33 | public class PagedViewIconCache { |
| 34 | public static class Key { |
| 35 | public enum Type { |
| 36 | ApplicationInfoKey, |
| 37 | AppWidgetProviderInfoKey, |
| 38 | ResolveInfoKey |
| 39 | } |
| 40 | private final ComponentName mComponentName; |
| 41 | private final Type mType; |
| 42 | |
| 43 | public Key(ApplicationInfo info) { |
| 44 | mComponentName = info.componentName; |
| 45 | mType = Type.ApplicationInfoKey; |
| 46 | } |
| 47 | public Key(ResolveInfo info) { |
| 48 | final ComponentInfo ci = info.activityInfo != null ? info.activityInfo : |
| 49 | info.serviceInfo; |
| 50 | mComponentName = new ComponentName(ci.packageName, ci.name); |
Winson Chung | 61fa419 | 2011-06-12 15:15:29 -0700 | [diff] [blame] | 51 | mType = Type.ResolveInfoKey; |
Winson Chung | 0499834 | 2011-01-05 13:54:43 -0800 | [diff] [blame] | 52 | } |
| 53 | public Key(AppWidgetProviderInfo info) { |
| 54 | mComponentName = info.provider; |
Winson Chung | 61fa419 | 2011-06-12 15:15:29 -0700 | [diff] [blame] | 55 | mType = Type.AppWidgetProviderInfoKey; |
Winson Chung | 0499834 | 2011-01-05 13:54:43 -0800 | [diff] [blame] | 56 | } |
| 57 | |
| 58 | private ComponentName getComponentName() { |
| 59 | return mComponentName; |
| 60 | } |
| 61 | public boolean isKeyType(Type t) { |
| 62 | return (mType == t); |
| 63 | } |
| 64 | |
| 65 | @Override |
| 66 | public boolean equals(Object o) { |
| 67 | if (o instanceof Key) { |
| 68 | Key k = (Key) o; |
| 69 | return mComponentName.equals(k.mComponentName); |
| 70 | } |
| 71 | return super.equals(o); |
| 72 | } |
| 73 | @Override |
| 74 | public int hashCode() { |
| 75 | return getComponentName().hashCode(); |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | private final HashMap<Key, Bitmap> mIconOutlineCache = new HashMap<Key, Bitmap>(); |
| 80 | |
| 81 | public void clear() { |
| 82 | for (Key key : mIconOutlineCache.keySet()) { |
| 83 | mIconOutlineCache.get(key).recycle(); |
| 84 | } |
| 85 | mIconOutlineCache.clear(); |
| 86 | } |
| 87 | private void retainAll(HashSet<Key> keysToKeep, Key.Type t) { |
| 88 | HashSet<Key> keysToRemove = new HashSet<Key>(mIconOutlineCache.keySet()); |
| 89 | keysToRemove.removeAll(keysToKeep); |
| 90 | for (Key key : keysToRemove) { |
| 91 | if (key.isKeyType(t)) { |
| 92 | mIconOutlineCache.get(key).recycle(); |
| 93 | mIconOutlineCache.remove(key); |
| 94 | } |
| 95 | } |
| 96 | } |
| 97 | /** Removes all the keys to applications that aren't in the passed in collection */ |
| 98 | public void retainAllApps(ArrayList<ApplicationInfo> keys) { |
| 99 | HashSet<Key> keysSet = new HashSet<Key>(); |
| 100 | for (ApplicationInfo info : keys) { |
| 101 | keysSet.add(new Key(info)); |
| 102 | } |
| 103 | retainAll(keysSet, Key.Type.ApplicationInfoKey); |
| 104 | } |
| 105 | /** Removes all the keys to shortcuts that aren't in the passed in collection */ |
| 106 | public void retainAllShortcuts(List<ResolveInfo> keys) { |
| 107 | HashSet<Key> keysSet = new HashSet<Key>(); |
| 108 | for (ResolveInfo info : keys) { |
| 109 | keysSet.add(new Key(info)); |
| 110 | } |
| 111 | retainAll(keysSet, Key.Type.ResolveInfoKey); |
| 112 | } |
| 113 | /** Removes all the keys to widgets that aren't in the passed in collection */ |
| 114 | public void retainAllAppWidgets(List<AppWidgetProviderInfo> keys) { |
| 115 | HashSet<Key> keysSet = new HashSet<Key>(); |
| 116 | for (AppWidgetProviderInfo info : keys) { |
| 117 | keysSet.add(new Key(info)); |
| 118 | } |
| 119 | retainAll(keysSet, Key.Type.AppWidgetProviderInfoKey); |
| 120 | } |
| 121 | public void addOutline(Key key, Bitmap b) { |
| 122 | mIconOutlineCache.put(key, b); |
| 123 | } |
| 124 | public void removeOutline(Key key) { |
| 125 | if (mIconOutlineCache.containsKey(key)) { |
| 126 | mIconOutlineCache.get(key).recycle(); |
| 127 | mIconOutlineCache.remove(key); |
| 128 | } |
| 129 | } |
| 130 | public Bitmap getOutline(Key key) { |
| 131 | return mIconOutlineCache.get(key); |
| 132 | } |
| 133 | } |