From b2ae1bc0fc406d1655aef28f009b515beaa7d652 Mon Sep 17 00:00:00 2001
From: miskreant <miskreant@users.noreply.github.com>
Date: Tue, 19 Jul 2016 19:34:49 -0600
Subject: [PATCH] feat: identify upper/lower range handles (#118)

Extend the handle classNames, and provide props so that
upper/lower handles are easily distinguishable in CSS & React.

* Use classNames() instead of string concatenation
---
 src/Slider.jsx | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/Slider.jsx b/src/Slider.jsx
index 310bcd9..117ff68 100644
--- a/src/Slider.jsx
+++ b/src/Slider.jsx
@@ -337,15 +337,26 @@ class Slider extends React.Component {
     const lowerOffset = this.calcOffset(lowerBound);
 
     const handleClassName = prefixCls + '-handle';
+
+    const upperClassName = classNames({
+      [handleClassName]: true,
+      [handleClassName + '-upper']: true,
+    });
+
+    const lowerClassName = classNames({
+      [handleClassName]: true,
+      [handleClassName + '-lower']: true,
+    });
+
     const isNoTip = (step === null) || (tipFormatter === null);
 
-    const upper = cloneElement(customHandle, { className: handleClassName,
+    const upper = cloneElement(customHandle, { className: upperClassName,
         noTip: isNoTip, tipTransitionName: tipTransitionName, tipFormatter: tipFormatter,
         vertical: vertical, offset: upperOffset, value: upperBound, dragging: handle === 'upperBound' });
 
     let lower = null;
     if (range) {
-      lower = cloneElement(customHandle, { className: handleClassName,
+      lower = cloneElement(customHandle, { className: lowerClassName,
         noTip: isNoTip, tipTransitionName: tipTransitionName, tipFormatter: tipFormatter,
         vertical: vertical, offset: lowerOffset, value: lowerBound, dragging: handle === 'lowerBound' });
     }