From ee0dd09a4fb1284dff4326d83747c9a7d62c5f40 Mon Sep 17 00:00:00 2001
From: Benjy Cui <benjytrys@gmail.com>
Date: Mon, 23 Nov 2015 15:57:51 +0800
Subject: [PATCH] fix: support decimal step

---
 package.json   |  2 +-
 src/Slider.jsx | 12 +++++++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/package.json b/package.json
index 8482037..bcff807 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "rc-slider",
-  "version": "3.1.1",
+  "version": "3.1.2",
   "description": "slider ui component for react",
   "keywords": [
     "react",
diff --git a/src/Slider.jsx b/src/Slider.jsx
index df8b3bb..e858937 100644
--- a/src/Slider.jsx
+++ b/src/Slider.jsx
@@ -203,6 +203,16 @@ class Slider extends React.Component {
     return rect.left;
   }
 
+  getPrecision() {
+    const props = this.props;
+    const stepString = props.step.toString();
+    let precision = 0;
+    if (stepString.indexOf('.') >= 0) {
+      precision = stepString.length - stepString.indexOf('.') - 1;
+    }
+    return precision;
+  }
+
   trimAlignValue(v) {
     const state = this.state || {};
     const {handle, lowerBound, upperBound} = state;
@@ -231,7 +241,7 @@ class Slider extends React.Component {
     const diffs = points.map((point) => Math.abs(val - point));
     const closestPoint = points[diffs.indexOf(Math.min.apply(Math, diffs))];
 
-    return closestPoint;
+    return step !== null ? parseFloat(closestPoint.toFixed(this.getPrecision())) : closestPoint;
   }
 
   calcOffset(value) {