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.annotation.SuppressLint; 20 import android.app.ActivityManager; 21 import android.app.Application; 22 import android.content.BroadcastReceiver; 23 import android.content.ContentProviderClient; 24 import android.content.ContentResolver; 25 import android.content.Context; 26 import android.content.Intent; 27 import android.content.IntentFilter; 28 import android.content.om.OverlayManager; 29 import android.net.Uri; 30 import android.os.RemoteException; 31 import android.text.format.DateUtils; 32 import android.util.Log; 33 34 import androidx.localbroadcastmanager.content.LocalBroadcastManager; 35 36 import com.android.documentsui.base.Lookup; 37 import com.android.documentsui.base.UserId; 38 import com.android.documentsui.clipping.ClipStorage; 39 import com.android.documentsui.clipping.ClipStore; 40 import com.android.documentsui.clipping.DocumentClipper; 41 import com.android.documentsui.queries.SearchHistoryManager; 42 import com.android.documentsui.roots.ProvidersCache; 43 import com.android.documentsui.theme.ThemeOverlayManager; 44 45 import com.google.common.collect.Lists; 46 47 import java.util.List; 48 49 public class DocumentsApplication extends Application { 50 private static final String TAG = "DocumentsApplication"; 51 private static final long PROVIDER_ANR_TIMEOUT = 20 * DateUtils.SECOND_IN_MILLIS; 52 53 private static final List<String> PACKAGE_FILTER_ACTIONS = Lists.newArrayList( 54 Intent.ACTION_PACKAGE_ADDED, 55 Intent.ACTION_PACKAGE_CHANGED, 56 Intent.ACTION_PACKAGE_REMOVED, 57 Intent.ACTION_PACKAGE_DATA_CLEARED 58 ); 59 60 private static final List<String> MANAGED_PROFILE_FILTER_ACTIONS = Lists.newArrayList( 61 Intent.ACTION_MANAGED_PROFILE_ADDED, 62 Intent.ACTION_MANAGED_PROFILE_REMOVED, 63 Intent.ACTION_MANAGED_PROFILE_UNLOCKED, 64 Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE 65 ); 66 67 private ProvidersCache mProviders; 68 private ThumbnailCache mThumbnailCache; 69 private ClipStorage mClipStore; 70 private DocumentClipper mClipper; 71 private DragAndDropManager mDragAndDropManager; 72 private UserIdManager mUserIdManager; 73 private Lookup<String, String> mFileTypeLookup; 74 getProvidersCache(Context context)75 public static ProvidersCache getProvidersCache(Context context) { 76 return ((DocumentsApplication) context.getApplicationContext()).mProviders; 77 } 78 getThumbnailCache(Context context)79 public static ThumbnailCache getThumbnailCache(Context context) { 80 final DocumentsApplication app = (DocumentsApplication) context.getApplicationContext(); 81 return app.mThumbnailCache; 82 } 83 acquireUnstableProviderOrThrow( ContentResolver resolver, String authority)84 public static ContentProviderClient acquireUnstableProviderOrThrow( 85 ContentResolver resolver, String authority) throws RemoteException { 86 final ContentProviderClient client = resolver.acquireUnstableContentProviderClient( 87 authority); 88 if (client == null) { 89 throw new RemoteException("Failed to acquire provider for " + authority); 90 } 91 client.setDetectNotResponding(PROVIDER_ANR_TIMEOUT); 92 return client; 93 } 94 getDocumentClipper(Context context)95 public static DocumentClipper getDocumentClipper(Context context) { 96 return ((DocumentsApplication) context.getApplicationContext()).mClipper; 97 } 98 getClipStore(Context context)99 public static ClipStore getClipStore(Context context) { 100 return ((DocumentsApplication) context.getApplicationContext()).mClipStore; 101 } 102 getUserIdManager(Context context)103 public static UserIdManager getUserIdManager(Context context) { 104 return ((DocumentsApplication) context.getApplicationContext()).mUserIdManager; 105 } 106 getDragAndDropManager(Context context)107 public static DragAndDropManager getDragAndDropManager(Context context) { 108 return ((DocumentsApplication) context.getApplicationContext()).mDragAndDropManager; 109 } 110 getFileTypeLookup(Context context)111 public static Lookup<String, String> getFileTypeLookup(Context context) { 112 return ((DocumentsApplication) context.getApplicationContext()).mFileTypeLookup; 113 } 114 onApplyOverlayFinish(boolean result)115 private void onApplyOverlayFinish(boolean result) { 116 Log.d(TAG, "OverlayManager.setEnabled() result: " + result); 117 } 118 119 @SuppressLint("NewApi") // OverlayManager.class is @hide 120 @Override onCreate()121 public void onCreate() { 122 super.onCreate(); 123 124 final ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE); 125 final OverlayManager om = getSystemService(OverlayManager.class); 126 final int memoryClassBytes = am.getMemoryClass() * 1024 * 1024; 127 128 if (om != null) { 129 new ThemeOverlayManager(om, getPackageName()).applyOverlays(this, true, 130 this::onApplyOverlayFinish); 131 } else { 132 Log.w(TAG, "Can't obtain OverlayManager from System Service!"); 133 } 134 135 mUserIdManager = UserIdManager.create(this); 136 137 mProviders = new ProvidersCache(this, mUserIdManager); 138 mProviders.updateAsync(/* forceRefreshAll= */ false, /* callback= */ null); 139 140 mThumbnailCache = new ThumbnailCache(memoryClassBytes / 4); 141 142 mClipStore = new ClipStorage( 143 ClipStorage.prepareStorage(getCacheDir()), 144 getSharedPreferences(ClipStorage.PREF_NAME, 0)); 145 mClipper = DocumentClipper.create(this, mClipStore); 146 147 mDragAndDropManager = DragAndDropManager.create(this, mClipper); 148 149 mFileTypeLookup = new FileTypeMap(this); 150 151 final IntentFilter packageFilter = new IntentFilter(); 152 for (String packageAction : PACKAGE_FILTER_ACTIONS) { 153 packageFilter.addAction(packageAction); 154 } 155 packageFilter.addDataScheme("package"); 156 registerReceiver(mCacheReceiver, packageFilter); 157 158 final IntentFilter localeFilter = new IntentFilter(); 159 localeFilter.addAction(Intent.ACTION_LOCALE_CHANGED); 160 registerReceiver(mCacheReceiver, localeFilter); 161 162 final IntentFilter managedProfileFilter = new IntentFilter(); 163 for (String managedProfileAction : MANAGED_PROFILE_FILTER_ACTIONS) { 164 managedProfileFilter.addAction(managedProfileAction); 165 } 166 registerReceiver(mCacheReceiver, managedProfileFilter); 167 168 SearchHistoryManager.getInstance(getApplicationContext()); 169 } 170 171 @Override onTrimMemory(int level)172 public void onTrimMemory(int level) { 173 super.onTrimMemory(level); 174 175 mThumbnailCache.onTrimMemory(level); 176 } 177 178 private BroadcastReceiver mCacheReceiver = new BroadcastReceiver() { 179 @Override 180 public void onReceive(Context context, Intent intent) { 181 final Uri data = intent.getData(); 182 final String action = intent.getAction(); 183 if (PACKAGE_FILTER_ACTIONS.contains(action) && data != null) { 184 final String packageName = data.getSchemeSpecificPart(); 185 mProviders.updatePackageAsync(UserId.DEFAULT_USER, packageName); 186 } else if (MANAGED_PROFILE_FILTER_ACTIONS.contains(action)) { 187 // After we have reloaded roots. Resend the broadcast locally so the other 188 // components can reload properly after roots are updated. 189 mProviders.updateAsync(/* forceRefreshAll= */ true, 190 () -> LocalBroadcastManager.getInstance(context).sendBroadcast(intent)); 191 } else { 192 mProviders.updateAsync(/* forceRefreshAll= */ true, /* callback= */ null); 193 } 194 } 195 }; 196 } 197