1package eu.siacs.conversations.ui;
2
3import android.Manifest;
4import android.annotation.TargetApi;
5import android.content.Context;
6import android.content.SharedPreferences;
7import android.content.pm.PackageManager;
8import android.graphics.Bitmap;
9import android.graphics.BitmapFactory;
10import android.location.Location;
11import android.location.LocationListener;
12import android.location.LocationManager;
13import android.os.Build;
14import android.os.Bundle;
15import android.preference.PreferenceManager;
16import android.provider.Settings;
17import android.util.Log;
18import android.view.MenuItem;
19
20import androidx.annotation.BoolRes;
21import androidx.annotation.NonNull;
22
23import org.osmdroid.api.IGeoPoint;
24import org.osmdroid.api.IMapController;
25import org.osmdroid.config.Configuration;
26import org.osmdroid.config.IConfigurationProvider;
27import org.osmdroid.tileprovider.tilesource.TileSourceFactory;
28import org.osmdroid.util.GeoPoint;
29import org.osmdroid.views.CustomZoomButtonsController;
30import org.osmdroid.views.MapView;
31import org.osmdroid.views.overlay.CopyrightOverlay;
32import org.osmdroid.views.overlay.Overlay;
33
34import eu.siacs.conversations.BuildConfig;
35import eu.siacs.conversations.Config;
36import eu.siacs.conversations.R;
37import eu.siacs.conversations.http.HttpConnectionManager;
38import eu.siacs.conversations.services.QuickConversationsService;
39import eu.siacs.conversations.ui.util.LocationHelper;
40import eu.siacs.conversations.ui.widget.Marker;
41import eu.siacs.conversations.ui.widget.MyLocation;
42import eu.siacs.conversations.ui.util.SettingsUtils;
43
44public abstract class LocationActivity extends ActionBarActivity implements LocationListener {
45 protected LocationManager locationManager;
46 protected boolean hasLocationFeature;
47
48 public static final int REQUEST_CODE_CREATE = 0;
49 public static final int REQUEST_CODE_FAB_PRESSED = 1;
50 public static final int REQUEST_CODE_SNACKBAR_PRESSED = 2;
51
52 protected static final String KEY_LOCATION = "loc";
53 protected static final String KEY_ZOOM_LEVEL = "zoom";
54
55 protected Location myLoc = null;
56 private MapView map = null;
57 protected IMapController mapController = null;
58
59 protected Bitmap marker_icon;
60
61 protected void clearMarkers() {
62 synchronized (this.map.getOverlays()) {
63 for (final Overlay overlay : this.map.getOverlays()) {
64 if (overlay instanceof Marker || overlay instanceof MyLocation) {
65 this.map.getOverlays().remove(overlay);
66 }
67 }
68 }
69 }
70
71
72 protected void updateLocationMarkers() {
73 clearMarkers();
74 }
75
76 @Override
77 protected void onCreate(final Bundle savedInstanceState) {
78 super.onCreate(savedInstanceState);
79 final Context ctx = getApplicationContext();
80
81 final PackageManager packageManager = ctx.getPackageManager();
82 hasLocationFeature = packageManager.hasSystemFeature(PackageManager.FEATURE_LOCATION) ||
83 packageManager.hasSystemFeature(PackageManager.FEATURE_LOCATION_GPS) ||
84 packageManager.hasSystemFeature(PackageManager.FEATURE_LOCATION_NETWORK);
85 this.locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);
86 this.marker_icon = BitmapFactory.decodeResource(ctx.getResources(), R.drawable.marker);
87
88 // Ask for location permissions if location services are enabled and we're
89 // just starting the activity (we don't want to keep pestering them on every
90 // screen rotation or if there's no point because it's disabled anyways).
91 if (savedInstanceState == null) {
92 requestPermissions(REQUEST_CODE_CREATE);
93 }
94
95 final IConfigurationProvider config = Configuration.getInstance();
96 config.load(ctx, getPreferences());
97 config.setUserAgentValue(BuildConfig.APPLICATION_ID + "/" + BuildConfig.VERSION_CODE);
98 if (getBooleanPreference("use_tor", R.bool.use_tor)) {
99 config.setHttpProxy(HttpConnectionManager.getProxy());
100 }
101 }
102
103 @Override
104 protected void onSaveInstanceState(@NonNull final Bundle outState) {
105 super.onSaveInstanceState(outState);
106
107 final IGeoPoint center = map.getMapCenter();
108 outState.putParcelable(KEY_LOCATION, new GeoPoint(
109 center.getLatitude(),
110 center.getLongitude()
111 ));
112 outState.putDouble(KEY_ZOOM_LEVEL, map.getZoomLevelDouble());
113 }
114
115 @Override
116 protected void onRestoreInstanceState(@NonNull final Bundle savedInstanceState) {
117 super.onRestoreInstanceState(savedInstanceState);
118
119 if (savedInstanceState.containsKey(KEY_LOCATION)) {
120 mapController.setCenter(savedInstanceState.getParcelable(KEY_LOCATION));
121 }
122 if (savedInstanceState.containsKey(KEY_ZOOM_LEVEL)) {
123 mapController.setZoom(savedInstanceState.getDouble(KEY_ZOOM_LEVEL));
124 }
125 }
126
127 protected void setupMapView(MapView mapView, final GeoPoint pos) {
128 map = mapView;
129 map.getOverlays().add(new CopyrightOverlay(this));
130 map.setTileSource(TileSourceFactory.MAPNIK);
131 map.getZoomController().setVisibility(CustomZoomButtonsController.Visibility.NEVER);
132 map.setMultiTouchControls(true);
133 map.setTilesScaledToDpi(false);
134 mapController = map.getController();
135 mapController.setZoom(Config.Map.INITIAL_ZOOM_LEVEL);
136 mapController.setCenter(pos);
137 }
138
139 protected void gotoLoc() {
140 gotoLoc(map.getZoomLevelDouble() == Config.Map.INITIAL_ZOOM_LEVEL);
141 }
142
143 protected abstract void gotoLoc(final boolean setZoomLevel);
144
145 protected abstract void setMyLoc(final Location location);
146
147 protected void requestLocationUpdates() {
148 if (!hasLocationFeature || locationManager == null) {
149 return;
150 }
151
152 Log.d(Config.LOGTAG, "Requesting location updates...");
153 final Location lastKnownLocationGps;
154 final Location lastKnownLocationNetwork;
155
156 try {
157 if (locationManager.getAllProviders().contains(LocationManager.GPS_PROVIDER)) {
158 lastKnownLocationGps = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
159
160 if (lastKnownLocationGps != null) {
161 setMyLoc(lastKnownLocationGps);
162 }
163 locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, Config.Map.LOCATION_FIX_TIME_DELTA,
164 Config.Map.LOCATION_FIX_SPACE_DELTA, this);
165 } else {
166 lastKnownLocationGps = null;
167 }
168
169 if (locationManager.getAllProviders().contains(LocationManager.NETWORK_PROVIDER)) {
170 lastKnownLocationNetwork = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
171 if (lastKnownLocationNetwork != null && LocationHelper.isBetterLocation(lastKnownLocationNetwork,
172 lastKnownLocationGps)) {
173 setMyLoc(lastKnownLocationNetwork);
174 }
175 locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, Config.Map.LOCATION_FIX_TIME_DELTA,
176 Config.Map.LOCATION_FIX_SPACE_DELTA, this);
177 }
178
179 // If something else is also querying for location more frequently than we are, the battery is already being
180 // drained. Go ahead and use the existing locations as often as we can get them.
181 if (locationManager.getAllProviders().contains(LocationManager.PASSIVE_PROVIDER)) {
182 locationManager.requestLocationUpdates(LocationManager.PASSIVE_PROVIDER, 0, 0, this);
183 }
184 } catch (final SecurityException ignored) {
185 // Do nothing if the users device has no location providers.
186 }
187 }
188
189 protected void pauseLocationUpdates() throws SecurityException {
190 if (locationManager != null) {
191 locationManager.removeUpdates(this);
192 }
193 }
194
195 @Override
196 public boolean onOptionsItemSelected(final MenuItem item) {
197 switch (item.getItemId()) {
198 case android.R.id.home:
199 finish();
200 return true;
201 }
202 return super.onOptionsItemSelected(item);
203 }
204
205 @Override
206 protected void onPause() {
207 super.onPause();
208 Configuration.getInstance().save(this, getPreferences());
209 map.onPause();
210 try {
211 pauseLocationUpdates();
212 } catch (final SecurityException ignored) {
213 }
214 }
215
216 protected abstract void updateUi();
217
218 protected boolean mapAtInitialLoc() {
219 return map.getZoomLevelDouble() == Config.Map.INITIAL_ZOOM_LEVEL;
220 }
221
222 @Override
223 protected void onResume() {
224 super.onResume();
225 Configuration.getInstance().load(this, getPreferences());
226 map.onResume();
227 this.setMyLoc(null);
228 requestLocationUpdates();
229 updateLocationMarkers();
230 updateUi();
231 map.setTileSource(TileSourceFactory.MAPNIK);
232 map.setTilesScaledToDpi(true);
233
234 if (mapAtInitialLoc()) {
235 gotoLoc();
236 }
237 }
238
239 protected boolean hasLocationPermissions() {
240 return (checkSelfPermission(Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED ||
241 checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED);
242 }
243
244 protected void requestPermissions(final int request_code) {
245 if (!hasLocationPermissions()) {
246 requestPermissions(
247 new String[]{
248 Manifest.permission.ACCESS_FINE_LOCATION,
249 Manifest.permission.ACCESS_COARSE_LOCATION,
250 },
251 request_code
252 );
253 }
254 }
255
256 @Override
257 public void onRequestPermissionsResult(final int requestCode,
258 @NonNull final String[] permissions,
259 @NonNull final int[] grantResults) {
260 super.onRequestPermissionsResult(requestCode, permissions, grantResults);
261 for (int i = 0; i < grantResults.length; i++) {
262 if (Manifest.permission.ACCESS_FINE_LOCATION.equals(permissions[i]) ||
263 Manifest.permission.ACCESS_COARSE_LOCATION.equals(permissions[i])) {
264 if (grantResults[i] == PackageManager.PERMISSION_GRANTED) {
265 requestLocationUpdates();
266 }
267 }
268 }
269 }
270
271 protected SharedPreferences getPreferences() {
272 return PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
273 }
274
275 protected boolean getBooleanPreference(String name, @BoolRes int res) {
276 return getPreferences().getBoolean(name, getResources().getBoolean(res));
277 }
278
279 protected boolean isLocationEnabled() {
280 try {
281 final int locationMode = Settings.Secure.getInt(getContentResolver(), Settings.Secure.LOCATION_MODE);
282 return locationMode != Settings.Secure.LOCATION_MODE_OFF;
283 } catch( final Settings.SettingNotFoundException e ){
284 return false;
285 }
286 }
287}