From fb2df21037795589d71489c64a5e17cbcb5f1254 Mon Sep 17 00:00:00 2001
From: Jesse Bounds <jesse@rebounds.net>
Date: Fri, 21 Jul 2017 10:29:49 -0700
Subject: [ios] Add option to disable background location updates

---
 platform/ios/src/MGLLocationManager.h |  1 +
 platform/ios/src/MGLLocationManager.m | 10 ++++++++--
 platform/ios/src/MGLMapboxEvents.m    |  4 ++++
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/platform/ios/src/MGLLocationManager.h b/platform/ios/src/MGLLocationManager.h
index ea23801813..65d2ee9b84 100644
--- a/platform/ios/src/MGLLocationManager.h
+++ b/platform/ios/src/MGLLocationManager.h
@@ -6,6 +6,7 @@
 @interface MGLLocationManager : NSObject <CLLocationManagerDelegate>
 
 @property (nonatomic, weak) id<MGLLocationManagerDelegate> delegate;
+@property (nonatomic) BOOL allowsBackgroundLocationUpdates;
 
 - (void)startUpdatingLocation;
 - (void)stopUpdatingLocation;
diff --git a/platform/ios/src/MGLLocationManager.m b/platform/ios/src/MGLLocationManager.m
index b0d2e17d5d..f1a109876d 100644
--- a/platform/ios/src/MGLLocationManager.m
+++ b/platform/ios/src/MGLLocationManager.m
@@ -23,7 +23,8 @@ static NSString * const MGLLocationManagerRegionIdentifier = @"MGLLocationManage
     self = [super init];
     if (self) {
         NSArray *backgroundModes = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"UIBackgroundModes"];
-       _hostAppHasBackgroundCapability = [backgroundModes containsObject:@"location"];
+        _hostAppHasBackgroundCapability = [backgroundModes containsObject:@"location"];
+        _allowsBackgroundLocationUpdates = YES;
     }
     return self;
 }
@@ -55,6 +56,11 @@ static NSString * const MGLLocationManagerRegionIdentifier = @"MGLLocationManage
     }
 }
 
+- (void)setAllowsBackgroundLocationUpdates:(BOOL)allowsBackgroundLocationUpdates {
+    _allowsBackgroundLocationUpdates = allowsBackgroundLocationUpdates;
+    self.standardLocationManager.allowsBackgroundLocationUpdates = _allowsBackgroundLocationUpdates;
+}
+
 #pragma mark - Utilities
 
 - (void)configurePassiveStandardLocationManager {
@@ -82,7 +88,7 @@ static NSString * const MGLLocationManagerRegionIdentifier = @"MGLLocationManage
             [self startBackgroundTimeoutTimer];
             // On iOS 9 and above also allow background location updates
             if ([self.standardLocationManager respondsToSelector:@selector(allowsBackgroundLocationUpdates)]) {
-                self.standardLocationManager.allowsBackgroundLocationUpdates = YES;
+                self.standardLocationManager.allowsBackgroundLocationUpdates = _allowsBackgroundLocationUpdates;
             }
         }
 
diff --git a/platform/ios/src/MGLMapboxEvents.m b/platform/ios/src/MGLMapboxEvents.m
index 4f1413d300..e31fdf3515 100644
--- a/platform/ios/src/MGLMapboxEvents.m
+++ b/platform/ios/src/MGLMapboxEvents.m
@@ -140,6 +140,7 @@ const NSTimeInterval MGLFlushInterval = 180;
              @"MGLMapboxAccountType": accountTypeNumber ?: @0,
              @"MGLMapboxMetricsEnabled": @YES,
              @"MGLMapboxMetricsDebugLoggingEnabled": @NO,
+             @"MGLMapboxMetricsAllowsBackgroundLocationUpdates": @YES,
          }];
     }
 }
@@ -272,6 +273,9 @@ const NSTimeInterval MGLFlushInterval = 180;
         [self pauseMetricsCollection];
         return;
     }
+    
+    BOOL allowsBackgroundLocationUpdates = [[NSUserDefaults standardUserDefaults] boolForKey:@"MGLMapboxMetricsAllowsBackgroundLocationUpdates"];
+    self.locationManager.allowsBackgroundLocationUpdates = allowsBackgroundLocationUpdates;
 
     // Toggle pause based on current pause state, user opt-out state, and low-power state.
     BOOL enabled = [[self class] isEnabled];
-- 
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