Merge pull request #1577 from mapbox/1ec5-did-fail-to-fail

Properly fail to load the map

gyp/platform-ios.gypi

@@ -35,6 +35,7 @@
         '../platform/ios/MGLUserLocationAnnotationView.h',
         '../platform/ios/MGLUserLocationAnnotationView.m',
         '../include/mbgl/ios/MGLTypes.h',
+        '../platform/ios/MGLTypes.m',
         '../platform/ios/NSBundle+MGLAdditions.h',
         '../platform/ios/NSBundle+MGLAdditions.m',
         '../platform/ios/NSException+MGLAdditions.h',

include/mbgl/ios/MGLTypes.h

@@ -1,5 +1,7 @@
 #import <Foundation/Foundation.h>
 
+extern NSString * const MGLErrorDomain;
+
 /** The mode used to track the user location on the map. */
 typedef NS_ENUM(NSUInteger, MGLUserTrackingMode)
 {

platform/ios/MGLMapView.mm

@@ -2352,9 +2352,10 @@ CLLocationCoordinate2D latLngToCoordinate(mbgl::LatLng latLng)
         }
         case mbgl::MapChangeDidFailLoadingMap:
         {
-            if ([self.delegate respondsToSelector:@selector(mapViewDidFailLoadingMap:withError::)])
+            if ([self.delegate respondsToSelector:@selector(mapViewDidFailLoadingMap:withError:)])
             {
-                [self.delegate mapViewDidFailLoadingMap:self withError:nil];
+                NSError *error = [NSError errorWithDomain:MGLErrorDomain code:0 userInfo:nil];
+                [self.delegate mapViewDidFailLoadingMap:self withError:error];
             }
             break;
         }

platform/ios/MGLTypes.m

@@ -0,0 +1,3 @@
+#import "MGLTypes.h"
+
+NSString * const MGLErrorDomain = @"MGLErrorDomain";