154d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov/* 254d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov * Copyright (C) 2006-2011 The Android Open Source Project 354d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov * 454d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov * Licensed under the Apache License, Version 2.0 (the "License"); 554d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov * you may not use this file except in compliance with the License. 654d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov * You may obtain a copy of the License at 754d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov * 854d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov * http://www.apache.org/licenses/LICENSE-2.0 954d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov * 1054d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov * Unless required by applicable law or agreed to in writing, software 1154d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov * distributed under the License is distributed on an "AS IS" BASIS, 1254d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1354d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov * See the License for the specific language governing permissions and 1454d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov * limitations under the License. 1554d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov */ 1654d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov 1754d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganovpackage com.android.server.am; 1854d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov 1954d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganovimport android.content.Context; 2054d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganovimport android.database.ContentObserver; 2154d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganovimport android.net.Uri; 2254d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganovimport android.os.Bundle; 2354d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganovimport android.provider.Settings; 2454d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganovimport android.provider.Settings.SettingNotFoundException; 2554d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganovimport android.util.Log; 2654d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov 2754d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganovimport java.util.HashMap; 2854d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganovimport java.util.Map; 2954d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov 3054d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov/** 3154d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov * Helper class for watching a set of core settings which the framework 3254d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov * propagates to application processes to avoid multiple lookups and potentially 3354d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov * disk I/O operations. Note: This class assumes that all core settings reside 3454d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov * in {@link Settings.Secure}. 3554d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov */ 36be4e6aaa0252dd7da28b7aa85beba982538efa46Dianne Hackbornfinal class CoreSettingsObserver extends ContentObserver { 3754d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov private static final String LOG_TAG = CoreSettingsObserver.class.getSimpleName(); 3854d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov 3954d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov // mapping form property name to its type 4054d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov private static final Map<String, Class<?>> sCoreSettingToTypeMap = new HashMap< 4154d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov String, Class<?>>(); 4254d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov static { 4354d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov sCoreSettingToTypeMap.put(Settings.Secure.LONG_PRESS_TIMEOUT, int.class); 4454d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov // add other core settings here... 4554d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov } 4654d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov 4754d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov private final Bundle mCoreSettings = new Bundle(); 4854d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov 4954d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov private final ActivityManagerService mActivityManagerService; 5054d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov 5154d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov public CoreSettingsObserver(ActivityManagerService activityManagerService) { 5254d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov super(activityManagerService.mHandler); 5354d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov mActivityManagerService = activityManagerService; 5454d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov beginObserveCoreSettings(); 559aa597e68b3fb30b079d627e1fcdea766e98ad26Svetoslav Ganov sendCoreSettings(); 5654d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov } 5754d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov 5854d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov public Bundle getCoreSettingsLocked() { 5954d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov return (Bundle) mCoreSettings.clone(); 6054d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov } 6154d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov 6254d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov @Override 6354d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov public void onChange(boolean selfChange) { 6454d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov synchronized (mActivityManagerService) { 659aa597e68b3fb30b079d627e1fcdea766e98ad26Svetoslav Ganov sendCoreSettings(); 6654d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov } 6754d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov } 6854d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov 699aa597e68b3fb30b079d627e1fcdea766e98ad26Svetoslav Ganov private void sendCoreSettings() { 709aa597e68b3fb30b079d627e1fcdea766e98ad26Svetoslav Ganov populateCoreSettings(mCoreSettings); 719aa597e68b3fb30b079d627e1fcdea766e98ad26Svetoslav Ganov mActivityManagerService.onCoreSettingsChange(mCoreSettings); 729aa597e68b3fb30b079d627e1fcdea766e98ad26Svetoslav Ganov } 739aa597e68b3fb30b079d627e1fcdea766e98ad26Svetoslav Ganov 7454d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov private void beginObserveCoreSettings() { 7554d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov for (String setting : sCoreSettingToTypeMap.keySet()) { 7654d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov Uri uri = Settings.Secure.getUriFor(setting); 7754d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov mActivityManagerService.mContext.getContentResolver().registerContentObserver( 7854d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov uri, false, this); 7954d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov } 8054d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov } 8154d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov 8254d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov private void populateCoreSettings(Bundle snapshot) { 8354d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov Context context = mActivityManagerService.mContext; 8454d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov for (Map.Entry<String, Class<?>> entry : sCoreSettingToTypeMap.entrySet()) { 8554d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov String setting = entry.getKey(); 8654d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov Class<?> type = entry.getValue(); 8754d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov try { 8854d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov if (type == String.class) { 8954d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov String value = Settings.Secure.getString(context.getContentResolver(), 9054d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov setting); 9154d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov snapshot.putString(setting, value); 9254d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov } else if (type == int.class) { 9354d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov int value = Settings.Secure.getInt(context.getContentResolver(), 9454d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov setting); 9554d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov snapshot.putInt(setting, value); 9654d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov } else if (type == float.class) { 9754d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov float value = Settings.Secure.getFloat(context.getContentResolver(), 9854d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov setting); 9954d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov snapshot.putFloat(setting, value); 10054d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov } else if (type == long.class) { 10154d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov long value = Settings.Secure.getLong(context.getContentResolver(), 10254d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov setting); 10354d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov snapshot.putLong(setting, value); 10454d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov } 10554d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov } catch (SettingNotFoundException snfe) { 10654d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov Log.w(LOG_TAG, "Cannot find setting \"" + setting + "\"", snfe); 10754d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov } 10854d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov } 10954d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov } 11054d068ec6af0ee6d261a135400efe6816c6f5ffeSvetoslav Ganov} 111