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   1 /*
   2  * Copyright © 2014 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  17  */
  18 package org.altusmetrum.AltosDroid;
  19
  20 import java.util.*;
  21
  22 import android.content.Context;
  23 import org.altusmetrum.altoslib_13.*;
  24
  25 public class AltosDroidPreferences extends AltosPreferences {
  26
  27         /* Active device preference name */
  28         final static String activeDeviceAddressPreference = "ACTIVE-DEVICE-ADDRESS";
  29         final static String activeDeviceNamePreference = "ACTIVE-DEVICE-NAME";
  30
  31         static DeviceAddress    active_device_address;
  32
  33         /* Map source preference name */
  34         final static String mapSourcePreference = "MAP-SOURCE";
  35
  36         static final int        MAP_SOURCE_OFFLINE = 0;
  37         static final int        MAP_SOURCE_ONLINE = 1;
  38
  39         static int      map_source;
  40
  41         public static void init(Context context) {
  42                 if (backend != null)
  43                         return;
  44
  45                 AltosPreferences.init(new AltosDroidPreferencesBackend(context));
  46
  47                 String address = backend.getString(activeDeviceAddressPreference, null);
  48                 String name = backend.getString(activeDeviceNamePreference, null);
  49
  50                 if (address != null && name != null)
  51                         active_device_address = new DeviceAddress (address, name);
  52
  53                 map_source = backend.getInt(mapSourcePreference, MAP_SOURCE_ONLINE);
  54         }
  55
  56         public static void set_active_device(DeviceAddress address) {
  57                 synchronized(backend) {
  58                         active_device_address = address;
  59                         if (active_device_address != null) {
  60                                 backend.putString(activeDeviceAddressPreference, active_device_address.address);
  61                                 backend.putString(activeDeviceNamePreference, active_device_address.name);
  62                         } else {
  63                                 backend.remove(activeDeviceAddressPreference);
  64                                 backend.remove(activeDeviceNamePreference);
  65                         }
  66                         flush_preferences();
  67                 }
  68         }
  69
  70         public static DeviceAddress active_device() {
  71                 synchronized(backend) {
  72                         return active_device_address;
  73                 }
  74         }
  75
  76         static LinkedList<AltosDroidMapSourceListener> map_source_listeners;
  77
  78         public static void set_map_source(int map_source) {
  79                 synchronized(backend) {
  80                         AltosDroidPreferences.map_source = map_source;
  81                         backend.putInt(mapSourcePreference, map_source);
  82                         flush_preferences();
  83                 }
  84                 if (map_source_listeners != null) {
  85                         for (AltosDroidMapSourceListener l : map_source_listeners) {
  86                                 l.map_source_changed(map_source);
  87                         }
  88                 }
  89         }
  90
  91         public static int map_source() {
  92                 synchronized(backend) {
  93                         return map_source;
  94                 }
  95         }
  96
  97         public static void register_map_source_listener(AltosDroidMapSourceListener l) {
  98                 synchronized(backend) {
  99                         if (map_source_listeners == null)
 100                                 map_source_listeners = new LinkedList<AltosDroidMapSourceListener>();
 101                         map_source_listeners.add(l);
 102                 }
 103         }
 104
 105         public static void unregister_map_source_listener(AltosDroidMapSourceListener l) {
 106                 synchronized(backend) {
 107                         map_source_listeners.remove(l);
 108                 }
 109         }
 110 }