From b4fe65a1347ebeb47d6deb05e5c49d76be01bb0b Mon Sep 17 00:00:00 2001
From: TJ VanToll <tj.vantoll@gmail.com>
Date: Fri, 3 Jan 2014 09:07:38 -0500
Subject: [PATCH] Datepicker: Add an `isValid()` method

---
 tests/unit/datepicker/datepicker_methods.js | 13 +++++++++++++
 ui/datepicker.js                            |  3 +++
 2 files changed, 16 insertions(+)

diff --git a/tests/unit/datepicker/datepicker_methods.js b/tests/unit/datepicker/datepicker_methods.js
index 81d1b096b..98034dacd 100644
--- a/tests/unit/datepicker/datepicker_methods.js
+++ b/tests/unit/datepicker/datepicker_methods.js
@@ -111,4 +111,17 @@ test( "valueAsDate", function() {
 	inline.datepicker( "destroy" );
 });
 
+test( "isValid", function() {
+	expect( 2 );
+	var input = $( "#datepicker" ).datepicker();
+
+	input.val( "1/1/14" );
+	ok( input.datepicker( "isValid" ) );
+
+	input.val( "1/1/abc" );
+	ok( !input.datepicker( "isValid" ) );
+
+	input.datepicker( "destroy" );
+});
+
 })( jQuery );
diff --git a/ui/datepicker.js b/ui/datepicker.js
index 43f640e4e..9f0e1905e 100644
--- a/ui/datepicker.js
+++ b/ui/datepicker.js
@@ -654,6 +654,9 @@ $.widget( "ui.datepicker", {
 			return this.date.date();
 		}
 	},
+	isValid: function() {
+		return Globalize.parseDate( this.element.val(), this.options.dateFormat ) !== null;
+	},
 	_destroy: function() {
 		if ( this.inline ) {
 			this.picker.empty();