From 782c0cc4f6211f64bb170368c15c64832cacd631 Mon Sep 17 00:00:00 2001
From: Veselin Nikolov <vesoNikolov@gmail.com>
Date: Sat, 25 Aug 2018 22:33:39 +0200
Subject: [PATCH] Use pull request #11409 from
 veselinn/fix/slider-handle-negative-data-start for v6.5.0

81fc284e9 fix: slider handle negative data-start values
da0b014de fix: remove unnecessary if from slider
9851a17ff test: add tests for Slider._adjustValue

Signed-off-by: Nicolas Coden <nicolas@ncoden.fr>
---
 js/foundation.slider.js              |  6 +++++-
 test/javascript/components/slider.js | 24 ++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/js/foundation.slider.js b/js/foundation.slider.js
index e7d4e1870..6f29fbe21 100644
--- a/js/foundation.slider.js
+++ b/js/foundation.slider.js
@@ -426,7 +426,11 @@ class Slider extends Plugin {
     else {
       val = value;
     }
-    left = val % step;
+    if (val >= 0) {
+      left = val % step;
+    } else {
+      left = step + (val % step);
+    }
     prev_val = val - left;
     next_val = prev_val + step;
     if (left === 0) {
diff --git a/test/javascript/components/slider.js b/test/javascript/components/slider.js
index 364919af2..9c1480aca 100644
--- a/test/javascript/components/slider.js
+++ b/test/javascript/components/slider.js
@@ -153,6 +153,30 @@ describe('Slider', function() {
     });
   });
 
+  describe('adjustValue()', function() {
+    it('handles positive values', function() {
+      $html = $(template).appendTo('body');
+      plugin = new Foundation.Slider($html, {});
+
+      plugin._adjustValue(null, 1).should.equal(1);
+      plugin._adjustValue(null, 2).should.equal(2);
+      plugin._adjustValue(null, 1.2).should.equal(1);
+      plugin._adjustValue(null, 1.9).should.equal(2);
+      plugin._adjustValue(null, 1.5).should.equal(2);
+    });
+
+    it('handles negative values', function() {
+      $html = $(template).appendTo('body');
+      plugin = new Foundation.Slider($html, {});
+
+      plugin._adjustValue(null, -1).should.equal(-1);
+      plugin._adjustValue(null, -2).should.equal(-2);
+      plugin._adjustValue(null, -1.2).should.equal(-1);
+      plugin._adjustValue(null, -1.9).should.equal(-2);
+      plugin._adjustValue(null, -1.5).should.equal(-1);
+    });
+  });
+
   describe('keyboard events', function() {
     it('sets value to minimum using HOME', function() {
       $html = $(template).appendTo('body');
-- 
2.47.2