Mon 21 Jul 22:43:21 CEST 2025
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/*
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Licensed to the Apache Software Foundation (ASF) under one
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or more contributor license agreements. See the NOTICE file
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distributed with this work for additional information
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regarding copyright ownership. The ASF licenses this file
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to you under the Apache License, Version 2.0 (the
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"License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing,
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software distributed under the License is distributed on an
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"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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KIND, either express or implied. See the License for the
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specific language governing permissions and limitations
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under the License.
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*/
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package org.apache.cordova.geolocation;
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import org.apache.cordova.CallbackContext;
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import org.apache.cordova.CordovaPlugin;
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import org.apache.cordova.PluginResult;
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import org.json.JSONArray;
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import org.json.JSONException;
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import org.json.JSONObject;
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import android.content.Context;
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import android.location.Location;
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import android.location.LocationManager;
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/*
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* This class is the interface to the Geolocation. It's bound to the geo object.
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*
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* This class only starts and stops various GeoListeners, which consist of a GPS and a Network Listener
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*/
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public class GeoBroker extends CordovaPlugin {
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private GPSListener gpsListener;
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private NetworkListener networkListener;
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private LocationManager locationManager;
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/**
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* Executes the request and returns PluginResult.
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*
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* @param action The action to execute.
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* @param args JSONArry of arguments for the plugin.
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* @param callbackContext The callback id used when calling back into JavaScript.
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* @return True if the action was valid, or false if not.
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*/
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public boolean execute(String action, JSONArray args, CallbackContext callbackContext) throws JSONException {
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if (locationManager == null) {
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locationManager = (LocationManager) this.cordova.getActivity().getSystemService(Context.LOCATION_SERVICE);
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}
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if ( locationManager.isProviderEnabled( LocationManager.GPS_PROVIDER ) ||
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locationManager.isProviderEnabled( LocationManager.NETWORK_PROVIDER )) {
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if (networkListener == null) {
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networkListener = new NetworkListener(locationManager, this);
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}
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if (gpsListener == null) {
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gpsListener = new GPSListener(locationManager, this);
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}
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if (action.equals("getLocation")) {
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boolean enableHighAccuracy = args.getBoolean(0);
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int maximumAge = args.getInt(1);
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Location last = this.locationManager.getLastKnownLocation((enableHighAccuracy ? LocationManager.GPS_PROVIDER: LocationManager.NETWORK_PROVIDER));
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// Check if we can use lastKnownLocation to get a quick reading and use less battery
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if (last != null && (System.currentTimeMillis() - last.getTime()) <= maximumAge) {
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PluginResult result = new PluginResult(PluginResult.Status.OK, this.returnLocationJSON(last));
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callbackContext.sendPluginResult(result);
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} else {
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this.getCurrentLocation(callbackContext, enableHighAccuracy, args.optInt(2, 60000));
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}
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}
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else if (action.equals("addWatch")) {
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String id = args.getString(0);
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boolean enableHighAccuracy = args.getBoolean(1);
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this.addWatch(id, callbackContext, enableHighAccuracy);
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}
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else if (action.equals("clearWatch")) {
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String id = args.getString(0);
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this.clearWatch(id);
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}
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else {
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return false;
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}
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} else {
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PluginResult.Status status = PluginResult.Status.NO_RESULT;
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String message = "Location API is not available for this device.";
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PluginResult result = new PluginResult(status, message);
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callbackContext.sendPluginResult(result);
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}
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return true;
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}
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private void clearWatch(String id) {
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this.gpsListener.clearWatch(id);
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this.networkListener.clearWatch(id);
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}
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private void getCurrentLocation(CallbackContext callbackContext, boolean enableHighAccuracy, int timeout) {
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if (enableHighAccuracy) {
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this.gpsListener.addCallback(callbackContext, timeout);
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} else {
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this.networkListener.addCallback(callbackContext, timeout);
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}
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}
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private void addWatch(String timerId, CallbackContext callbackContext, boolean enableHighAccuracy) {
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if (enableHighAccuracy) {
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this.gpsListener.addWatch(timerId, callbackContext);
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} else {
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this.networkListener.addWatch(timerId, callbackContext);
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}
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}
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/**
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* Called when the activity is to be shut down.
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* Stop listener.
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*/
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public void onDestroy() {
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if (this.networkListener != null) {
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this.networkListener.destroy();
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this.networkListener = null;
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}
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if (this.gpsListener != null) {
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this.gpsListener.destroy();
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this.gpsListener = null;
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}
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}
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/**
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* Called when the view navigates.
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* Stop the listeners.
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*/
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public void onReset() {
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this.onDestroy();
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}
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public JSONObject returnLocationJSON(Location loc) {
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JSONObject o = new JSONObject();
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try {
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o.put("latitude", loc.getLatitude());
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o.put("longitude", loc.getLongitude());
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o.put("altitude", (loc.hasAltitude() ? loc.getAltitude() : null));
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o.put("accuracy", loc.getAccuracy());
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o.put("heading", (loc.hasBearing() ? (loc.hasSpeed() ? loc.getBearing() : null) : null));
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o.put("velocity", loc.getSpeed());
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o.put("timestamp", loc.getTime());
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} catch (JSONException e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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return o;
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}
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public void win(Location loc, CallbackContext callbackContext, boolean keepCallback) {
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PluginResult result = new PluginResult(PluginResult.Status.OK, this.returnLocationJSON(loc));
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result.setKeepCallback(keepCallback);
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callbackContext.sendPluginResult(result);
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}
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/**
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* Location failed. Send error back to JavaScript.
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*
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* @param code The error code
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* @param msg The error message
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* @throws JSONException
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*/
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public void fail(int code, String msg, CallbackContext callbackContext, boolean keepCallback) {
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JSONObject obj = new JSONObject();
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String backup = null;
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try {
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obj.put("code", code);
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obj.put("message", msg);
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} catch (JSONException e) {
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obj = null;
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backup = "{'code':" + code + ",'message':'" + msg.replaceAll("'", "\'") + "'}";
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}
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PluginResult result;
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if (obj != null) {
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result = new PluginResult(PluginResult.Status.ERROR, obj);
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} else {
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result = new PluginResult(PluginResult.Status.ERROR, backup);
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}
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result.setKeepCallback(keepCallback);
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callbackContext.sendPluginResult(result);
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}
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public boolean isGlobalListener(CordovaLocationListener listener)
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{
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if (gpsListener != null && networkListener != null)
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{
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return gpsListener.equals(listener) || networkListener.equals(listener);
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}
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else
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return false;
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}
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}
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