From 4092e469829e7cc14e946b2ed4e413091bd63b3b Mon Sep 17 00:00:00 2001
From: Brad Leege <bleege@gmail.com>
Date: Mon, 6 Apr 2015 23:03:27 -0500
Subject: [PATCH] #1216 - Add pause and resume methods with corresponding
 isPaused boolean flag property

---
 include/mbgl/ios/MGLMapboxEvents.h |  2 ++
 platform/ios/MGLMapboxEvents.m     | 21 +++++++++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/include/mbgl/ios/MGLMapboxEvents.h b/include/mbgl/ios/MGLMapboxEvents.h
index e51371368..2af3d8b16 100644
--- a/include/mbgl/ios/MGLMapboxEvents.h
+++ b/include/mbgl/ios/MGLMapboxEvents.h
@@ -29,6 +29,8 @@ extern NSString *const MGLEventGestureRotateStart;
 + (void) setToken:(NSString *)token;
 + (void) setAppName:(NSString *)appName;
 + (void) setAppVersion:(NSString *)appVersion;
++ (void) pauseMetricsCollection;
++ (void) resumeMetricsCollection;
 
 // You can call this method from any thread. Significant work will
 // be dispatched to a low-priority background queue and all
diff --git a/platform/ios/MGLMapboxEvents.m b/platform/ios/MGLMapboxEvents.m
index 2dfecbd77..593a98390 100644
--- a/platform/ios/MGLMapboxEvents.m
+++ b/platform/ios/MGLMapboxEvents.m
@@ -71,6 +71,11 @@ NSString *const MGLEventGestureRotateStart = @"Rotation";
 @property (atomic) NSDateFormatter *rfc3339DateFormatter;
 @property (atomic) CGFloat scale;
 
+
+// The isPaused state tracker is only ever accessed from the main thread.
+//
+@property (nonatomic) BOOL isPaused;
+
 // The timer is only ever accessed from the main thread.
 //
 @property (nonatomic) NSTimer *timer;
@@ -168,6 +173,8 @@ NSString *const MGLEventGestureRotateStart = @"Rotation";
         // Clear Any System TimeZone Cache
         [NSTimeZone resetSystemTimeZone];
         [_rfc3339DateFormatter setTimeZone:[NSTimeZone systemTimeZone]];
+        
+        _isPaused = NO;
     }
     return self;
 }
@@ -219,6 +226,20 @@ NSString *const MGLEventGestureRotateStart = @"Rotation";
     [MGLMapboxEvents sharedManager].appVersion = appVersion;
 }
 
+// Must be called from the main thread.
+//
++ (void) pauseMetricsCollection {
+    assert([[NSThread currentThread] isMainThread]);
+    [MGLMapboxEvents sharedManager].isPaused = YES;
+}
+
+// Must be called from the main thread.
+//
++ (void) resumeMetricsCollection {
+    assert([[NSThread currentThread] isMainThread]);
+    [MGLMapboxEvents sharedManager].isPaused = NO;
+}
+
 // Can be called from any thread. Can be called rapidly from
 // the UI thread, so performance is paramount.
 //