From 9cce84c8f83986bcbb500b321dc6c79c35794d54 Mon Sep 17 00:00:00 2001
From: Sergey <olukyanova@MBA13-C02NLEMBG085.local>
Date: Thu, 30 Jul 2015 11:19:28 +0300
Subject: [PATCH] implemented minRange option in range slider module

---
 README.md       |  6 ++++++
 js/jcf.range.js | 11 ++++++-----
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 84f5f07..a585d14 100644
--- a/README.md
+++ b/README.md
@@ -281,6 +281,12 @@ Each module has options. Some of options are common between modules and some are
 			<td>string</td>
 			<td><code>"auto"</code></td>
 		</tr>
+		<tr>
+			<td><code>minRange</code></td>
+			<td>Works only when multiple slider handles are used. Sets the minimum range value that can be selected between the two handles</td>
+			<td>number</td>
+			<td><code>0</code></td>
+		</tr>
 		<tr>
 			<td><code>dragHandleCenter</code></td>
 			<td>Enable this option to make the cursor stick to the center of the input handle</td>
diff --git a/js/jcf.range.js b/js/jcf.range.js
index b1eb3ad..743c8fd 100644
--- a/js/jcf.range.js
+++ b/js/jcf.range.js
@@ -26,7 +26,8 @@
 			range: false, // or "min", "max", "all"
 			dragHandleCenter: true,
 			snapToMarks: true,
-			snapRadius: 5
+			snapRadius: 5,
+			minRange: 0
 		},
 		matchElement: function(element) {
 			return element.is(this.selector);
@@ -145,10 +146,10 @@
 				maxStep = Infinity;
 
 			if (handleIndex > 0) {
-				minStep = this.valueToStepIndex(this.values[handleIndex - 1]);
+				minStep = this.valueToStepIndex(parseFloat(this.values[handleIndex - 1]) + this.options.minRange);
 			}
 			if (handleIndex < this.handleCount - 1) {
-				maxStep = this.valueToStepIndex(this.values[handleIndex + 1]);
+				maxStep = this.valueToStepIndex(parseFloat(this.values[handleIndex + 1]) - this.options.minRange);
 			}
 
 			return {
@@ -411,10 +412,10 @@
 
 			if (this.handleCount > 1) {
 				if (this.activeDragHandleIndex > 0) {
-					minValue = parseFloat(this.values[this.activeDragHandleIndex - 1]);
+					minValue = parseFloat(this.values[this.activeDragHandleIndex - 1]) + this.options.minRange;
 				}
 				if (this.activeDragHandleIndex < this.handleCount - 1) {
-					maxValue = parseFloat(this.values[this.activeDragHandleIndex + 1]);
+					maxValue = parseFloat(this.values[this.activeDragHandleIndex + 1]) - this.options.minRange;
 				}
 			}