From b6a0450ef6394da5c5123be41dab51d8af75fb6c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Minh=20Nguy=E1=BB=85n?= <mxn@1ec5.org>
Date: Tue, 30 Jun 2015 15:35:04 -0700
Subject: [PATCH] Go dormant before termination

Speculative fix for #1460 per https://github.com/mapbox/mapbox-gl-native/issues/1460#issuecomment-99959434.
---
 platform/ios/MGLMapView.mm | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/platform/ios/MGLMapView.mm b/platform/ios/MGLMapView.mm
index 4957a0329..982a3e297 100644
--- a/platform/ios/MGLMapView.mm
+++ b/platform/ios/MGLMapView.mm
@@ -367,6 +367,7 @@ std::chrono::steady_clock::duration secondsAsDuration(float duration)
 
     // observe app activity
     //
+    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(willTerminate) name:UIApplicationWillTerminateNotification object:nil];
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(sleepGL:) name:UIApplicationWillResignActiveNotification object:nil];
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(sleepGL:) name:UIApplicationDidEnterBackgroundNotification object:nil];
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(wakeGL:) name:UIApplicationWillEnterForegroundNotification object:nil];
@@ -709,6 +710,18 @@ std::chrono::steady_clock::duration secondsAsDuration(float duration)
 
 #pragma mark - Life Cycle -
 
+- (void)willTerminate
+{
+    MGLAssertIsMainThread();
+
+    if ( ! self.isDormant)
+    {
+        self.dormant = YES;
+        _mbglMap->pause();
+        [self.glView deleteDrawable];
+    }
+}
+
 - (void)sleepGL:(__unused NSNotification *)notification
 {
     MGLAssertIsMainThread();