| /* |
| * Copyright (C) 2016 The CyanogenMod 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 cyanogenmod.preference; |
| |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.database.ContentObserver; |
| import android.net.Uri; |
| import android.os.Handler; |
| import android.provider.Settings; |
| import android.util.ArrayMap; |
| import android.util.ArraySet; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import cyanogenmod.providers.CMSettings; |
| |
| public class SettingsHelper { |
| |
| private static final String SETTINGS_GLOBAL = Settings.Global.CONTENT_URI.toString(); |
| private static final String SETTINGS_SECURE = Settings.Secure.CONTENT_URI.toString(); |
| private static final String SETTINGS_SYSTEM = Settings.System.CONTENT_URI.toString(); |
| |
| private static final String CMSETTINGS_GLOBAL = CMSettings.Global.CONTENT_URI.toString(); |
| private static final String CMSETTINGS_SECURE = CMSettings.Secure.CONTENT_URI.toString(); |
| private static final String CMSETTINGS_SYSTEM = CMSettings.System.CONTENT_URI.toString(); |
| |
| private static SettingsHelper sInstance; |
| |
| private final Context mContext; |
| private final Observatory mObservatory; |
| |
| private SettingsHelper(Context context) { |
| mContext = context; |
| mObservatory = new Observatory(context, new Handler()); |
| } |
| |
| public static synchronized SettingsHelper get(Context context) { |
| if (sInstance == null) { |
| sInstance = new SettingsHelper(context); |
| } |
| return sInstance; |
| } |
| |
| public String getString(Uri settingsUri) { |
| final String uri = settingsUri.toString(); |
| final ContentResolver resolver = mContext.getContentResolver(); |
| |
| if (uri.startsWith(SETTINGS_SECURE)) { |
| return Settings.Secure.getString(resolver, uri.substring(SETTINGS_SECURE.length())); |
| } else if (uri.startsWith(SETTINGS_SYSTEM)) { |
| return Settings.System.getString(resolver, uri.substring(SETTINGS_SYSTEM.length())); |
| } else if (uri.startsWith(SETTINGS_GLOBAL)) { |
| return Settings.Global.getString(resolver, uri.substring(SETTINGS_GLOBAL.length())); |
| } else if (uri.startsWith(CMSETTINGS_SECURE)) { |
| return CMSettings.Secure.getString(resolver, uri.substring(CMSETTINGS_SECURE.length())); |
| } else if (uri.startsWith(CMSETTINGS_SYSTEM)) { |
| return CMSettings.System.getString(resolver, uri.substring(CMSETTINGS_SYSTEM.length())); |
| } else if (uri.startsWith(CMSETTINGS_GLOBAL)) { |
| return CMSettings.Global.getString(resolver, uri.substring(CMSETTINGS_GLOBAL.length())); |
| } |
| return null; |
| } |
| |
| public int getInt(Uri settingsUri, int def) { |
| final String uri = settingsUri.toString(); |
| final ContentResolver resolver = mContext.getContentResolver(); |
| |
| if (uri.startsWith(SETTINGS_SECURE)) { |
| return Settings.Secure.getInt(resolver, uri.substring(SETTINGS_SECURE.length()), def); |
| } else if (uri.startsWith(SETTINGS_SYSTEM)) { |
| return Settings.System.getInt(resolver, uri.substring(SETTINGS_SYSTEM.length()), def); |
| } else if (uri.startsWith(SETTINGS_GLOBAL)) { |
| return Settings.Global.getInt(resolver, uri.substring(SETTINGS_GLOBAL.length()), def); |
| } else if (uri.startsWith(CMSETTINGS_SECURE)) { |
| return CMSettings.Secure.getInt(resolver, uri.substring(CMSETTINGS_SECURE.length()), def); |
| } else if (uri.startsWith(CMSETTINGS_SYSTEM)) { |
| return CMSettings.System.getInt(resolver, uri.substring(CMSETTINGS_SYSTEM.length()), def); |
| } else if (uri.startsWith(CMSETTINGS_GLOBAL)) { |
| return CMSettings.Global.getInt(resolver, uri.substring(CMSETTINGS_GLOBAL.length()), def); |
| } |
| return def; |
| } |
| |
| public boolean getBoolean(Uri settingsUri, boolean def) { |
| int value = getInt(settingsUri, def ? 1 : 0); |
| return value == 1; |
| } |
| |
| public void putString(Uri settingsUri, String value) { |
| final String uri = settingsUri.toString(); |
| final ContentResolver resolver = mContext.getContentResolver(); |
| |
| if (uri.startsWith(SETTINGS_SECURE)) { |
| Settings.Secure.putString(resolver, uri.substring(SETTINGS_SECURE.length()), value); |
| } else if (uri.startsWith(SETTINGS_SYSTEM)) { |
| Settings.System.putString(resolver, uri.substring(SETTINGS_SYSTEM.length()), value); |
| } else if (uri.startsWith(SETTINGS_GLOBAL)) { |
| Settings.Global.putString(resolver, uri.substring(SETTINGS_GLOBAL.length()), value); |
| } else if (uri.startsWith(CMSETTINGS_SECURE)) { |
| CMSettings.Secure.putString(resolver, uri.substring(CMSETTINGS_SECURE.length()), value); |
| } else if (uri.startsWith(CMSETTINGS_SYSTEM)) { |
| CMSettings.System.putString(resolver, uri.substring(CMSETTINGS_SYSTEM.length()), value); |
| } else if (uri.startsWith(CMSETTINGS_GLOBAL)) { |
| CMSettings.Global.putString(resolver, uri.substring(CMSETTINGS_GLOBAL.length()), value); |
| } |
| } |
| |
| public void putInt(Uri settingsUri, int value) { |
| final String uri = settingsUri.toString(); |
| final ContentResolver resolver = mContext.getContentResolver(); |
| |
| if (uri.startsWith(SETTINGS_SECURE)) { |
| Settings.Secure.putInt(resolver, uri.substring(SETTINGS_SECURE.length()), value); |
| } else if (uri.startsWith(SETTINGS_SYSTEM)) { |
| Settings.System.putInt(resolver, uri.substring(SETTINGS_SYSTEM.length()), value); |
| } else if (uri.startsWith(SETTINGS_GLOBAL)) { |
| Settings.Global.putInt(resolver, uri.substring(SETTINGS_GLOBAL.length()), value); |
| } else if (uri.startsWith(CMSETTINGS_SECURE)) { |
| CMSettings.Secure.putInt(resolver, uri.substring(CMSETTINGS_SECURE.length()), value); |
| } else if (uri.startsWith(CMSETTINGS_SYSTEM)) { |
| CMSettings.System.putInt(resolver, uri.substring(CMSETTINGS_SYSTEM.length()), value); |
| } else if (uri.startsWith(CMSETTINGS_GLOBAL)) { |
| CMSettings.Global.putInt(resolver, uri.substring(CMSETTINGS_GLOBAL.length()), value); |
| } |
| } |
| |
| public void putBoolean(Uri settingsUri, boolean value) { |
| putInt(settingsUri, value ? 1 : 0); |
| } |
| |
| public void startWatching(OnSettingsChangeListener listener, Uri... settingsUris) { |
| mObservatory.register(listener, settingsUris); |
| } |
| |
| public void stopWatching(OnSettingsChangeListener listener) { |
| mObservatory.unregister(listener); |
| } |
| |
| public interface OnSettingsChangeListener { |
| public void onSettingsChanged(Uri settingsUri); |
| } |
| |
| /** |
| * A scalable ContentObserver that aggregates all listeners thru a single entrypoint. |
| */ |
| private static class Observatory extends ContentObserver { |
| |
| private final Map<OnSettingsChangeListener, Set<Uri>> mTriggers = new ArrayMap<>(); |
| private final List<Uri> mRefs = new ArrayList<>(); |
| |
| private final Context mContext; |
| private final ContentResolver mResolver; |
| |
| public Observatory(Context context, Handler handler) { |
| super(handler); |
| mContext = context; |
| mResolver = mContext.getContentResolver(); |
| } |
| |
| public void register(OnSettingsChangeListener listener, Uri... contentUris) { |
| synchronized (mRefs) { |
| Set<Uri> uris = mTriggers.get(listener); |
| if (uris == null) { |
| uris = new ArraySet<Uri>(); |
| mTriggers.put(listener, uris); |
| } |
| for (Uri contentUri : contentUris) { |
| uris.add(contentUri); |
| if (!mRefs.contains(contentUri)) { |
| mResolver.registerContentObserver(contentUri, false, this); |
| listener.onSettingsChanged(null); |
| } |
| mRefs.add(contentUri); |
| } |
| } |
| } |
| |
| public void unregister(OnSettingsChangeListener listener) { |
| synchronized (mRefs) { |
| Set<Uri> uris = mTriggers.remove(listener); |
| if (uris != null) { |
| for (Uri uri : uris) { |
| mRefs.remove(uri); |
| } |
| } |
| if (mRefs.size() == 0) { |
| mResolver.unregisterContentObserver(this); |
| } |
| } |
| } |
| |
| @Override |
| public void onChange(boolean selfChange, Uri uri) { |
| synchronized (mRefs) { |
| super.onChange(selfChange, uri); |
| |
| final Set<OnSettingsChangeListener> notify = new ArraySet<>(); |
| for (Map.Entry<OnSettingsChangeListener, Set<Uri>> entry : mTriggers.entrySet()) { |
| if (entry.getValue().contains(uri)) { |
| notify.add(entry.getKey()); |
| } |
| } |
| |
| for (OnSettingsChangeListener listener : notify) { |
| listener.onSettingsChanged(uri); |
| } |
| } |
| } |
| } |
| } |