From f6b058f3c960d9fdfd1c02d32b3a202fbc6b65ba Mon Sep 17 00:00:00 2001
From: Rae Che <raeche@agoa.org.uk>
Date: Mon, 20 Aug 2018 17:20:13 +0100
Subject: [PATCH] brewRenderer: Capture event properties while still in event
 loop.

React [pools events](https://github.com/facebook/react/issues/2850),
which means that once the lambda runs later on the properties we want
to read will be null. Instead, we capture the properties in the event
loop.
---
 client/homebrew/brewRenderer/brewRenderer.jsx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/client/homebrew/brewRenderer/brewRenderer.jsx b/client/homebrew/brewRenderer/brewRenderer.jsx
index 2f2d964..2729b6a 100644
--- a/client/homebrew/brewRenderer/brewRenderer.jsx
+++ b/client/homebrew/brewRenderer/brewRenderer.jsx
@@ -58,8 +58,9 @@ const BrewRenderer = createClass({
 	},
 
 	handleScroll : function(e){
+		let target = e.target;
 		this.setState((prevState)=>({
-			viewablePageNumber : Math.floor(e.target.scrollTop / e.target.scrollHeight * prevState.pages.length)
+			viewablePageNumber : Math.floor(target.scrollTop / target.scrollHeight * prevState.pages.length)
 		}));
 	},