From dd316883c0a23f8598182f2ab76c5537d1ff3a8f Mon Sep 17 00:00:00 2001
From: Pim Willems <pwillems@thesupplygroup.nl>
Date: Fri, 24 Aug 2018 13:25:23 +0200
Subject: [PATCH] Added a listener for using an offset for fixed navbars

---
 src/js/modules/scrollspy.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/js/modules/scrollspy.js b/src/js/modules/scrollspy.js
index ae17cac..6a92e8c 100644
--- a/src/js/modules/scrollspy.js
+++ b/src/js/modules/scrollspy.js
@@ -13,6 +13,8 @@ function ScrollSpy (wrapper, opt) {
 
   this.callback = opt.callback;
 
+  this.fixedNavbarOffset = opt.fixedNavbarOffset;
+
   this.init();
 }
 
@@ -109,7 +111,7 @@ ScrollSpy.prototype.isInView = function (el) {
     scrollBottom = scrollTop + winH,
     rect = el.getBoundingClientRect(),
     elTop = rect.top + scrollTop,
-    elBottom = elTop + el.offsetHeight;
+    elBottom = elTop + el.offsetHeight - this.fixedNavbarOffset;
 
   return (elTop < scrollBottom) && (elBottom > scrollTop);
 };
@@ -129,4 +131,4 @@ ScrollSpy.prototype.markNav = function (elems) {
 };
 
 
-module.exports = ScrollSpy;
+module.exports = ScrollSpy;
\ No newline at end of file