From fd013df20399531c6a8abe606bef5e702efe662f Mon Sep 17 00:00:00 2001
From: Nicholas Riley <com-github@sabi.net>
Date: Sun, 25 Oct 2015 17:37:51 -0400
Subject: [PATCH] Make 3D Touch work to bring up contextual menus.

Also makes delay-based contextual menu trigger work on 3D
Touch-capable devices (#781).
---
 clients/ios/Classes/EventWindow.m | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/clients/ios/Classes/EventWindow.m b/clients/ios/Classes/EventWindow.m
index a81ff6244..8db509ee8 100644
--- a/clients/ios/Classes/EventWindow.m
+++ b/clients/ios/Classes/EventWindow.m
@@ -56,12 +56,21 @@
                 
             case UITouchPhaseEnded:
                 [contextualMenuTimer invalidate];
+                contextualMenuTimer = nil;
                 if (unmoved) {
                     [self tapAction];
                 }
                 break;
 
-            case UITouchPhaseMoved:
+            case UITouchPhaseMoved: // Changes in force are also "moves"
+                if (CGPointEqualToPoint([touch locationInView:self], tapLocation)) {
+                    if (touch.force > 0.75) {
+                        [contextualMenuTimer invalidate];
+                        contextualMenuTimer = nil;
+                        [self tapAndHoldAction:nil];
+                    }
+                    break;
+                }
             case UITouchPhaseCancelled:
                 unmoved = NO;
                 [contextualMenuTimer invalidate];