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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#import "CDVLocation.h"
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#import <Cordova/NSArray+Comparisons.h>
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#pragma mark Constants
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#define kPGLocationErrorDomain @"kPGLocationErrorDomain"
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#define kPGLocationDesiredAccuracyKey @"desiredAccuracy"
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#define kPGLocationForcePromptKey @"forcePrompt"
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#define kPGLocationDistanceFilterKey @"distanceFilter"
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#define kPGLocationFrequencyKey @"frequency"
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#pragma mark -
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#pragma mark Categories
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@interface CLHeading (JSONMethods)
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- (NSString*)JSONRepresentation;
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@end
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@implementation CDVLocationData
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@synthesize locationStatus, locationInfo, locationCallbacks, watchCallbacks;
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- (CDVLocationData*)init
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{
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self = (CDVLocationData*)[super init];
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if (self) {
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self.locationInfo = nil;
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self.locationCallbacks = nil;
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self.watchCallbacks = nil;
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}
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return self;
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}
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@end
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#pragma mark -
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#pragma mark CDVLocation
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@implementation CDVLocation
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@synthesize locationManager, locationData;
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- (CDVPlugin*)initWithWebView:(UIWebView*)theWebView
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{
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self = (CDVLocation*)[super initWithWebView:(UIWebView*)theWebView];
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if (self) {
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self.locationManager = [[CLLocationManager alloc] init];
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self.locationManager.delegate = self; // Tells the location manager to send updates to this object
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__locationStarted = NO;
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__highAccuracyEnabled = NO;
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self.locationData = nil;
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}
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return self;
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}
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- (BOOL)isAuthorized
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{
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BOOL authorizationStatusClassPropertyAvailable = [CLLocationManager respondsToSelector:@selector(authorizationStatus)]; // iOS 4.2+
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if (authorizationStatusClassPropertyAvailable) {
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NSUInteger authStatus = [CLLocationManager authorizationStatus];
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return (authStatus == kCLAuthorizationStatusAuthorized) || (authStatus == kCLAuthorizationStatusNotDetermined);
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}
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// by default, assume YES (for iOS < 4.2)
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return YES;
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}
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- (BOOL)isLocationServicesEnabled
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{
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BOOL locationServicesEnabledInstancePropertyAvailable = [self.locationManager respondsToSelector:@selector(locationServicesEnabled)]; // iOS 3.x
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BOOL locationServicesEnabledClassPropertyAvailable = [CLLocationManager respondsToSelector:@selector(locationServicesEnabled)]; // iOS 4.x
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if (locationServicesEnabledClassPropertyAvailable) { // iOS 4.x
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return [CLLocationManager locationServicesEnabled];
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} else if (locationServicesEnabledInstancePropertyAvailable) { // iOS 2.x, iOS 3.x
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return [(id)self.locationManager locationServicesEnabled];
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} else {
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return NO;
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}
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}
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- (void)startLocation:(BOOL)enableHighAccuracy
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{
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if (![self isLocationServicesEnabled]) {
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[self returnLocationError:PERMISSIONDENIED withMessage:@"Location services are not enabled."];
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return;
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}
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if (![self isAuthorized]) {
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NSString* message = nil;
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BOOL authStatusAvailable = [CLLocationManager respondsToSelector:@selector(authorizationStatus)]; // iOS 4.2+
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if (authStatusAvailable) {
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NSUInteger code = [CLLocationManager authorizationStatus];
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if (code == kCLAuthorizationStatusNotDetermined) {
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// could return POSITION_UNAVAILABLE but need to coordinate with other platforms
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message = @"User undecided on application's use of location services.";
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} else if (code == kCLAuthorizationStatusRestricted) {
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message = @"Application's use of location services is restricted.";
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}
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}
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// PERMISSIONDENIED is only PositionError that makes sense when authorization denied
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[self returnLocationError:PERMISSIONDENIED withMessage:message];
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return;
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}
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// Tell the location manager to start notifying us of location updates. We
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// first stop, and then start the updating to ensure we get at least one
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// update, even if our location did not change.
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[self.locationManager stopUpdatingLocation];
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[self.locationManager startUpdatingLocation];
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__locationStarted = YES;
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if (enableHighAccuracy) {
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__highAccuracyEnabled = YES;
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// Set to distance filter to "none" - which should be the minimum for best results.
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self.locationManager.distanceFilter = kCLDistanceFilterNone;
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// Set desired accuracy to Best.
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self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
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} else {
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__highAccuracyEnabled = NO;
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// TODO: Set distance filter to 10 meters? and desired accuracy to nearest ten meters? arbitrary.
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self.locationManager.distanceFilter = 10;
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self.locationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters;
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}
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}
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- (void)_stopLocation
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{
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if (__locationStarted) {
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if (![self isLocationServicesEnabled]) {
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return;
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}
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[self.locationManager stopUpdatingLocation];
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__locationStarted = NO;
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__highAccuracyEnabled = NO;
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}
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}
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- (void)locationManager:(CLLocationManager*)manager
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didUpdateToLocation:(CLLocation*)newLocation
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fromLocation:(CLLocation*)oldLocation
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{
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CDVLocationData* cData = self.locationData;
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cData.locationInfo = newLocation;
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if (self.locationData.locationCallbacks.count > 0) {
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for (NSString* callbackId in self.locationData.locationCallbacks) {
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[self returnLocationInfo:callbackId andKeepCallback:NO];
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}
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[self.locationData.locationCallbacks removeAllObjects];
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}
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if (self.locationData.watchCallbacks.count > 0) {
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for (NSString* timerId in self.locationData.watchCallbacks) {
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[self returnLocationInfo:[self.locationData.watchCallbacks objectForKey:timerId] andKeepCallback:YES];
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}
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} else {
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// No callbacks waiting on us anymore, turn off listening.
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[self _stopLocation];
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}
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}
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- (void)getLocation:(CDVInvokedUrlCommand*)command
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{
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NSString* callbackId = command.callbackId;
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BOOL enableHighAccuracy = [[command.arguments objectAtIndex:0] boolValue];
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if ([self isLocationServicesEnabled] == NO) {
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NSMutableDictionary* posError = [NSMutableDictionary dictionaryWithCapacity:2];
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[posError setObject:[NSNumber numberWithInt:PERMISSIONDENIED] forKey:@"code"];
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[posError setObject:@"Location services are disabled." forKey:@"message"];
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CDVPluginResult* result = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR messageAsDictionary:posError];
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[self.commandDelegate sendPluginResult:result callbackId:callbackId];
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} else {
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if (!self.locationData) {
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self.locationData = [[CDVLocationData alloc] init];
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}
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CDVLocationData* lData = self.locationData;
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if (!lData.locationCallbacks) {
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lData.locationCallbacks = [NSMutableArray arrayWithCapacity:1];
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}
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if (!__locationStarted || (__highAccuracyEnabled != enableHighAccuracy)) {
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// add the callbackId into the array so we can call back when get data
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if (callbackId != nil) {
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[lData.locationCallbacks addObject:callbackId];
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}
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// Tell the location manager to start notifying us of heading updates
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[self startLocation:enableHighAccuracy];
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} else {
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[self returnLocationInfo:callbackId andKeepCallback:NO];
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}
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}
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}
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- (void)addWatch:(CDVInvokedUrlCommand*)command
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{
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NSString* callbackId = command.callbackId;
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NSString* timerId = [command.arguments objectAtIndex:0];
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BOOL enableHighAccuracy = [[command.arguments objectAtIndex:1] boolValue];
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if (!self.locationData) {
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self.locationData = [[CDVLocationData alloc] init];
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}
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CDVLocationData* lData = self.locationData;
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if (!lData.watchCallbacks) {
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lData.watchCallbacks = [NSMutableDictionary dictionaryWithCapacity:1];
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}
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// add the callbackId into the dictionary so we can call back whenever get data
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[lData.watchCallbacks setObject:callbackId forKey:timerId];
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if ([self isLocationServicesEnabled] == NO) {
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NSMutableDictionary* posError = [NSMutableDictionary dictionaryWithCapacity:2];
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[posError setObject:[NSNumber numberWithInt:PERMISSIONDENIED] forKey:@"code"];
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[posError setObject:@"Location services are disabled." forKey:@"message"];
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CDVPluginResult* result = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR messageAsDictionary:posError];
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[self.commandDelegate sendPluginResult:result callbackId:callbackId];
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} else {
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if (!__locationStarted || (__highAccuracyEnabled != enableHighAccuracy)) {
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// Tell the location manager to start notifying us of location updates
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[self startLocation:enableHighAccuracy];
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}
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}
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}
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- (void)clearWatch:(CDVInvokedUrlCommand*)command
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{
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NSString* timerId = [command.arguments objectAtIndex:0];
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if (self.locationData && self.locationData.watchCallbacks && [self.locationData.watchCallbacks objectForKey:timerId]) {
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[self.locationData.watchCallbacks removeObjectForKey:timerId];
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}
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}
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- (void)stopLocation:(CDVInvokedUrlCommand*)command
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{
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[self _stopLocation];
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}
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- (void)returnLocationInfo:(NSString*)callbackId andKeepCallback:(BOOL)keepCallback
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{
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CDVPluginResult* result = nil;
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CDVLocationData* lData = self.locationData;
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if (lData && !lData.locationInfo) {
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// return error
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result = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR messageToErrorObject:POSITIONUNAVAILABLE];
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} else if (lData && lData.locationInfo) {
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CLLocation* lInfo = lData.locationInfo;
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NSMutableDictionary* returnInfo = [NSMutableDictionary dictionaryWithCapacity:8];
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NSNumber* timestamp = [NSNumber numberWithDouble:([lInfo.timestamp timeIntervalSince1970] * 1000)];
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[returnInfo setObject:timestamp forKey:@"timestamp"];
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[returnInfo setObject:[NSNumber numberWithDouble:lInfo.speed] forKey:@"velocity"];
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[returnInfo setObject:[NSNumber numberWithDouble:lInfo.verticalAccuracy] forKey:@"altitudeAccuracy"];
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[returnInfo setObject:[NSNumber numberWithDouble:lInfo.horizontalAccuracy] forKey:@"accuracy"];
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[returnInfo setObject:[NSNumber numberWithDouble:lInfo.course] forKey:@"heading"];
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[returnInfo setObject:[NSNumber numberWithDouble:lInfo.altitude] forKey:@"altitude"];
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[returnInfo setObject:[NSNumber numberWithDouble:lInfo.coordinate.latitude] forKey:@"latitude"];
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[returnInfo setObject:[NSNumber numberWithDouble:lInfo.coordinate.longitude] forKey:@"longitude"];
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result = [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsDictionary:returnInfo];
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[result setKeepCallbackAsBool:keepCallback];
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}
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if (result) {
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[self.commandDelegate sendPluginResult:result callbackId:callbackId];
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}
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}
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- (void)returnLocationError:(NSUInteger)errorCode withMessage:(NSString*)message
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{
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NSMutableDictionary* posError = [NSMutableDictionary dictionaryWithCapacity:2];
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[posError setObject:[NSNumber numberWithInt:errorCode] forKey:@"code"];
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[posError setObject:message ? message:@"" forKey:@"message"];
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CDVPluginResult* result = [CDVPluginResult resultWithStatus:CDVCommandStatus_ERROR messageAsDictionary:posError];
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for (NSString* callbackId in self.locationData.locationCallbacks) {
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[self.commandDelegate sendPluginResult:result callbackId:callbackId];
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}
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[self.locationData.locationCallbacks removeAllObjects];
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for (NSString* callbackId in self.locationData.watchCallbacks) {
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[self.commandDelegate sendPluginResult:result callbackId:callbackId];
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}
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}
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- (void)locationManager:(CLLocationManager*)manager didFailWithError:(NSError*)error
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{
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NSLog(@"locationManager::didFailWithError %@", [error localizedFailureReason]);
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CDVLocationData* lData = self.locationData;
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if (lData && __locationStarted) {
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// TODO: probably have to once over the various error codes and return one of:
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// PositionError.PERMISSION_DENIED = 1;
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// PositionError.POSITION_UNAVAILABLE = 2;
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// PositionError.TIMEOUT = 3;
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NSUInteger positionError = POSITIONUNAVAILABLE;
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if (error.code == kCLErrorDenied) {
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positionError = PERMISSIONDENIED;
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}
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[self returnLocationError:positionError withMessage:[error localizedDescription]];
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}
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[self.locationManager stopUpdatingLocation];
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__locationStarted = NO;
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}
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- (void)dealloc
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{
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self.locationManager.delegate = nil;
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}
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- (void)onReset
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{
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[self _stopLocation];
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[self.locationManager stopUpdatingHeading];
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}
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@end
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