1 /* 2 * Copyright (C) 2013 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.documentsui; 18 19 import android.app.ActivityManager; 20 import android.app.Application; 21 import android.content.BroadcastReceiver; 22 import android.content.ContentProviderClient; 23 import android.content.ContentResolver; 24 import android.content.Context; 25 import android.content.Intent; 26 import android.content.IntentFilter; 27 import android.net.Uri; 28 import android.os.RemoteException; 29 import android.text.format.DateUtils; 30 31 import com.android.documentsui.base.Lookup; 32 import com.android.documentsui.clipping.ClipStorage; 33 import com.android.documentsui.clipping.ClipStore; 34 import com.android.documentsui.clipping.DocumentClipper; 35 import com.android.documentsui.roots.ProvidersCache; 36 37 public class DocumentsApplication extends Application { 38 private static final long PROVIDER_ANR_TIMEOUT = 20 * DateUtils.SECOND_IN_MILLIS; 39 40 private ProvidersCache mProviders; 41 private ThumbnailCache mThumbnailCache; 42 private ClipStorage mClipStore; 43 private DocumentClipper mClipper; 44 private DragAndDropManager mDragAndDropManager; 45 private Lookup<String, String> mFileTypeLookup; 46 getProvidersCache(Context context)47 public static ProvidersCache getProvidersCache(Context context) { 48 return ((DocumentsApplication) context.getApplicationContext()).mProviders; 49 } 50 getThumbnailCache(Context context)51 public static ThumbnailCache getThumbnailCache(Context context) { 52 final DocumentsApplication app = (DocumentsApplication) context.getApplicationContext(); 53 return app.mThumbnailCache; 54 } 55 acquireUnstableProviderOrThrow( ContentResolver resolver, String authority)56 public static ContentProviderClient acquireUnstableProviderOrThrow( 57 ContentResolver resolver, String authority) throws RemoteException { 58 final ContentProviderClient client = resolver.acquireUnstableContentProviderClient( 59 authority); 60 if (client == null) { 61 throw new RemoteException("Failed to acquire provider for " + authority); 62 } 63 client.setDetectNotResponding(PROVIDER_ANR_TIMEOUT); 64 return client; 65 } 66 getDocumentClipper(Context context)67 public static DocumentClipper getDocumentClipper(Context context) { 68 return ((DocumentsApplication) context.getApplicationContext()).mClipper; 69 } 70 getClipStore(Context context)71 public static ClipStore getClipStore(Context context) { 72 return ((DocumentsApplication) context.getApplicationContext()).mClipStore; 73 } 74 getDragAndDropManager(Context context)75 public static DragAndDropManager getDragAndDropManager(Context context) { 76 return ((DocumentsApplication) context.getApplicationContext()).mDragAndDropManager; 77 } 78 getFileTypeLookup(Context context)79 public static Lookup<String, String> getFileTypeLookup(Context context) { 80 return ((DocumentsApplication) context.getApplicationContext()).mFileTypeLookup; 81 } 82 83 @Override onCreate()84 public void onCreate() { 85 super.onCreate(); 86 87 final ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE); 88 final int memoryClassBytes = am.getMemoryClass() * 1024 * 1024; 89 90 mProviders = new ProvidersCache(this); 91 mProviders.updateAsync(false); 92 93 mThumbnailCache = new ThumbnailCache(memoryClassBytes / 4); 94 95 mClipStore = new ClipStorage( 96 ClipStorage.prepareStorage(getCacheDir()), 97 getSharedPreferences(ClipStorage.PREF_NAME, 0)); 98 mClipper = DocumentClipper.create(this, mClipStore); 99 100 mDragAndDropManager = DragAndDropManager.create(this, mClipper); 101 102 mFileTypeLookup = new FileTypeMap(this); 103 104 final IntentFilter packageFilter = new IntentFilter(); 105 packageFilter.addAction(Intent.ACTION_PACKAGE_ADDED); 106 packageFilter.addAction(Intent.ACTION_PACKAGE_CHANGED); 107 packageFilter.addAction(Intent.ACTION_PACKAGE_REMOVED); 108 packageFilter.addAction(Intent.ACTION_PACKAGE_DATA_CLEARED); 109 packageFilter.addDataScheme("package"); 110 registerReceiver(mCacheReceiver, packageFilter); 111 112 final IntentFilter localeFilter = new IntentFilter(); 113 localeFilter.addAction(Intent.ACTION_LOCALE_CHANGED); 114 registerReceiver(mCacheReceiver, localeFilter); 115 } 116 117 @Override onTrimMemory(int level)118 public void onTrimMemory(int level) { 119 super.onTrimMemory(level); 120 121 mThumbnailCache.onTrimMemory(level); 122 } 123 124 private BroadcastReceiver mCacheReceiver = new BroadcastReceiver() { 125 @Override 126 public void onReceive(Context context, Intent intent) { 127 final Uri data = intent.getData(); 128 if (data != null) { 129 final String packageName = data.getSchemeSpecificPart(); 130 mProviders.updatePackageAsync(packageName); 131 } else { 132 mProviders.updateAsync(true); 133 } 134 } 135 }; 136 } 137