| /* |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you 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 org.apache.cordova; |
| |
| import org.apache.cordova.api.CallbackContext; |
| import org.apache.cordova.api.CordovaPlugin; |
| import org.apache.cordova.api.PluginResult; |
| import org.json.JSONArray; |
| import org.json.JSONException; |
| import org.json.JSONObject; |
| |
| import android.content.Context; |
| import android.location.Location; |
| import android.location.LocationManager; |
| |
| /* |
| * This class is the interface to the Geolocation. It's bound to the geo object. |
| * |
| * This class only starts and stops various GeoListeners, which consist of a GPS and a Network Listener |
| */ |
| |
| public class GeoBroker extends CordovaPlugin { |
| private GPSListener gpsListener; |
| private NetworkListener networkListener; |
| private LocationManager locationManager; |
| |
| /** |
| * Constructor. |
| */ |
| public GeoBroker() { |
| } |
| |
| /** |
| * Executes the request and returns PluginResult. |
| * |
| * @param action The action to execute. |
| * @param args JSONArry of arguments for the plugin. |
| * @param callbackContext The callback id used when calling back into JavaScript. |
| * @return True if the action was valid, or false if not. |
| */ |
| public boolean execute(String action, JSONArray args, CallbackContext callbackContext) throws JSONException { |
| if (this.locationManager == null) { |
| this.locationManager = (LocationManager) this.cordova.getActivity().getSystemService(Context.LOCATION_SERVICE); |
| this.networkListener = new NetworkListener(this.locationManager, this); |
| this.gpsListener = new GPSListener(this.locationManager, this); |
| } |
| |
| if ( locationManager.isProviderEnabled( LocationManager.GPS_PROVIDER ) || |
| locationManager.isProviderEnabled( LocationManager.NETWORK_PROVIDER )) { |
| |
| if (action.equals("getLocation")) { |
| boolean enableHighAccuracy = args.getBoolean(0); |
| int maximumAge = args.getInt(1); |
| Location last = this.locationManager.getLastKnownLocation((enableHighAccuracy ? LocationManager.GPS_PROVIDER : LocationManager.NETWORK_PROVIDER)); |
| // Check if we can use lastKnownLocation to get a quick reading and use less battery |
| if (last != null && (System.currentTimeMillis() - last.getTime()) <= maximumAge) { |
| PluginResult result = new PluginResult(PluginResult.Status.OK, this.returnLocationJSON(last)); |
| callbackContext.sendPluginResult(result); |
| } else { |
| this.getCurrentLocation(callbackContext, enableHighAccuracy, args.optInt(2, 60000)); |
| } |
| } |
| else if (action.equals("addWatch")) { |
| String id = args.getString(0); |
| boolean enableHighAccuracy = args.getBoolean(1); |
| this.addWatch(id, callbackContext, enableHighAccuracy); |
| } |
| else if (action.equals("clearWatch")) { |
| String id = args.getString(0); |
| this.clearWatch(id); |
| } |
| else { |
| return false; |
| } |
| } else { |
| PluginResult.Status status = PluginResult.Status.NO_RESULT; |
| String message = "Location API is not available for this device."; |
| PluginResult result = new PluginResult(status, message); |
| callbackContext.sendPluginResult(result); |
| } |
| return true; |
| } |
| |
| private void clearWatch(String id) { |
| this.gpsListener.clearWatch(id); |
| this.networkListener.clearWatch(id); |
| } |
| |
| private void getCurrentLocation(CallbackContext callbackContext, boolean enableHighAccuracy, int timeout) { |
| if (enableHighAccuracy) { |
| this.gpsListener.addCallback(callbackContext, timeout); |
| } else { |
| this.networkListener.addCallback(callbackContext, timeout); |
| } |
| } |
| |
| private void addWatch(String timerId, CallbackContext callbackContext, boolean enableHighAccuracy) { |
| if (enableHighAccuracy) { |
| this.gpsListener.addWatch(timerId, callbackContext); |
| } else { |
| this.networkListener.addWatch(timerId, callbackContext); |
| } |
| } |
| |
| /** |
| * Called when the activity is to be shut down. |
| * Stop listener. |
| */ |
| public void onDestroy() { |
| if (this.networkListener != null) { |
| this.networkListener.destroy(); |
| this.networkListener = null; |
| } |
| if (this.gpsListener != null) { |
| this.gpsListener.destroy(); |
| this.gpsListener = null; |
| } |
| } |
| |
| /** |
| * Called when the view navigates. |
| * Stop the listeners. |
| */ |
| public void onReset() { |
| this.onDestroy(); |
| } |
| |
| public JSONObject returnLocationJSON(Location loc) { |
| JSONObject o = new JSONObject(); |
| |
| try { |
| o.put("latitude", loc.getLatitude()); |
| o.put("longitude", loc.getLongitude()); |
| o.put("altitude", (loc.hasAltitude() ? loc.getAltitude() : null)); |
| o.put("accuracy", loc.getAccuracy()); |
| o.put("heading", (loc.hasBearing() ? (loc.hasSpeed() ? loc.getBearing() : null) : null)); |
| o.put("velocity", loc.getSpeed()); |
| o.put("timestamp", loc.getTime()); |
| } catch (JSONException e) { |
| // TODO Auto-generated catch block |
| e.printStackTrace(); |
| } |
| |
| return o; |
| } |
| |
| public void win(Location loc, CallbackContext callbackContext, boolean keepCallback) { |
| PluginResult result = new PluginResult(PluginResult.Status.OK, this.returnLocationJSON(loc)); |
| result.setKeepCallback(keepCallback); |
| callbackContext.sendPluginResult(result); |
| } |
| |
| /** |
| * Location failed. Send error back to JavaScript. |
| * |
| * @param code The error code |
| * @param msg The error message |
| * @throws JSONException |
| */ |
| public void fail(int code, String msg, CallbackContext callbackContext, boolean keepCallback) { |
| JSONObject obj = new JSONObject(); |
| String backup = null; |
| try { |
| obj.put("code", code); |
| obj.put("message", msg); |
| } catch (JSONException e) { |
| obj = null; |
| backup = "{'code':" + code + ",'message':'" + msg.replaceAll("'", "\'") + "'}"; |
| } |
| PluginResult result; |
| if (obj != null) { |
| result = new PluginResult(PluginResult.Status.ERROR, obj); |
| } else { |
| result = new PluginResult(PluginResult.Status.ERROR, backup); |
| } |
| |
| result.setKeepCallback(keepCallback); |
| callbackContext.sendPluginResult(result); |
| } |
| |
| public boolean isGlobalListener(CordovaLocationListener listener) |
| { |
| if (gpsListener != null && networkListener != null) |
| { |
| return gpsListener.equals(listener) || networkListener.equals(listener); |
| } |
| else |
| return false; |
| } |
| } |