From 578d48b303d5d615ac70f9f1f6f3edfef020d8a3 Mon Sep 17 00:00:00 2001
From: Brad Leege <bleege@gmail.com>
Date: Wed, 22 Apr 2015 17:19:59 -0500
Subject: [PATCH] #1225 - Initial setup of MapboxGL as a singleton object with
 access token

---
 gyp/platform-ios.gypi       |  1 +
 include/mbgl/ios/MapboxGL.h |  6 ++++++
 platform/ios/MapboxGL.m     | 39 +++++++++++++++++++++++++++++++++++++
 3 files changed, 46 insertions(+)
 create mode 100644 platform/ios/MapboxGL.m

diff --git a/gyp/platform-ios.gypi b/gyp/platform-ios.gypi
index f70743118..142896c4e 100644
--- a/gyp/platform-ios.gypi
+++ b/gyp/platform-ios.gypi
@@ -17,6 +17,7 @@
         '../platform/darwin/image.mm',
         '../platform/darwin/reachability.m',
         '../include/mbgl/ios/MapboxGL.h',
+        '../platform/ios/MapboxGL.m',
         '../include/mbgl/ios/MGLMapboxEvents.h',
         '../platform/ios/MGLMapboxEvents.m',
         '../include/mbgl/ios/MGLMapView.h',
diff --git a/include/mbgl/ios/MapboxGL.h b/include/mbgl/ios/MapboxGL.h
index c32915bc7..84c3f4542 100644
--- a/include/mbgl/ios/MapboxGL.h
+++ b/include/mbgl/ios/MapboxGL.h
@@ -2,3 +2,9 @@
 #import "MGLMapView.h"
 #import "MGLTypes.h"
 #import "MGLUserLocation.h"
+
+@interface MapboxGL : NSObject
+
++ (void) sharedInstanceWithAccessToken:(NSString *)token;
+
+@end
\ No newline at end of file
diff --git a/platform/ios/MapboxGL.m b/platform/ios/MapboxGL.m
new file mode 100644
index 000000000..b1cb44cbc
--- /dev/null
+++ b/platform/ios/MapboxGL.m
@@ -0,0 +1,39 @@
+#import <Foundation/Foundation.h>
+
+#import "MapboxGL.h"
+
+@interface MapboxGL()
+
+@end
+
+@property (atomic) NSString *accessToken;
+
+@implementation MapboxGL
+
+
+// Can be called from any thread. Called implicitly from any
+// public class convenience methods.
+//
++ (instancetype) sharedInstanceWithAccessToken:(NSString *)token {
+    static dispatch_once_t onceToken;
+    static MapboxGL *_sharedManager;
+    dispatch_once(&onceToken, ^{
+        if ( ! NSProcessInfo.processInfo.mgl_isInterfaceBuilderDesignablesAgent) {
+            void (^setupBlock)() = ^{
+                _sharedManager = [[self alloc] init];
+                _sharedManager.accessToken = token;
+            };
+            if ( ! [[NSThread currentThread] isMainThread]) {
+                dispatch_sync(dispatch_get_main_queue(), ^{
+                    setupBlock();
+                });
+            }
+            else {
+                setupBlock();
+            }
+        }
+    });
+    return _sharedManager;
+}
+
+@end
\ No newline at end of file