From cea8ed485fbf0dff7bc1ca304cf5dd7f07a98c10 Mon Sep 17 00:00:00 2001
From: Cameron Gutman <aicommander@gmail.com>
Date: Wed, 6 Oct 2021 23:28:29 -0500
Subject: [PATCH] Improve scrolling behavior for continuous scroll input

---
 Limelight/Input/StreamView.m | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/Limelight/Input/StreamView.m b/Limelight/Input/StreamView.m
index 9c7df6c..f90cdf7 100644
--- a/Limelight/Input/StreamView.m
+++ b/Limelight/Input/StreamView.m
@@ -459,17 +459,20 @@ static const double X1_MOUSE_SPEED_DIVISOR = 2.5;
     switch (gesture.state) {
         case UIGestureRecognizerStateBegan:
         case UIGestureRecognizerStateChanged:
-        case UIGestureRecognizerStateEnded:
             break;
         
+        case UIGestureRecognizerStateEnded:
         default:
             // Ignore recognition failure and other states
+            lastScrollTranslation = CGPointMake(0, 0);
             return;
     }
     
-    short velocityY = [gesture velocityInView:self].y;
-    if (velocityY != 0) {
-        LiSendHighResScrollEvent(velocityY);
+    CGPoint currentScrollTranslation = [gesture translationInView:self];
+    short translationDeltaY = ((currentScrollTranslation.y - lastScrollTranslation.y) / self.bounds.size.height) * 120; // WHEEL_DELTA
+    if (translationDeltaY != 0) {
+        LiSendHighResScrollEvent(translationDeltaY);
+        lastScrollTranslation = currentScrollTranslation;
     }
 }