From 13cd6c2fe5f25181ea0fcea6f7a20f57469a317b Mon Sep 17 00:00:00 2001
From: TJ VanToll <tj.vantoll@gmail.com>
Date: Tue, 19 Nov 2013 08:35:19 -0500
Subject: [PATCH] Datepicker: Support changing `eachDay` after initialization

---
 tests/unit/datepicker/datepicker_options.js | 38 ++++++++++++++++++++-
 ui/datepicker.js                            |  5 +++
 2 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/tests/unit/datepicker/datepicker_options.js b/tests/unit/datepicker/datepicker_options.js
index 9218303ed..52ae74a74 100644
--- a/tests/unit/datepicker/datepicker_options.js
+++ b/tests/unit/datepicker/datepicker_options.js
@@ -45,7 +45,43 @@ test( "dateFormat", function() {
 });
 
 test( "eachDay", function() {
-	expect( 0 );
+	expect( 5 );
+	var timestamp,
+		input = $( "#datepicker" ).datepicker(),
+		picker = input.datepicker( "widget" );
+		firstCell = picker.find( "td[id]:first" );
+
+	equal( firstCell.find( "a" ).length, 1, "days are selectable by default" );
+	timestamp = parseInt( firstCell.find( "a" ).attr( "data-timestamp" ), 10 );
+	equal( new Date( timestamp ).getDate(), 1, "first available day is the 1st by default" );
+
+	// Do not render the 1st of the month
+	input.datepicker( "option", "eachDay", function( day ) {
+		if ( day.date === 1 ) {
+			day.render = false;
+		}
+	});
+	firstCell = picker.find( "td[id]:first" );
+	timestamp = parseInt( firstCell.find( "a" ).attr( "data-timestamp" ), 10 );
+	equal( new Date( timestamp ).getDate(), 2, "first available day is the 2nd" );
+
+	// Display the 1st of the month but make it not selectable.
+	input.datepicker( "option", "eachDay", function( day ) {
+		if ( day.date === 1 ) {
+			day.selectable = false;
+		}
+	});
+	firstCell = picker.find( "td[id]:first" );
+	equal( firstCell.find( "a" ).length, 0, "the 1st is not selectable" );
+
+	input.datepicker( "option", "eachDay", function( day ) {
+		if ( day.date === 1 ) {
+			day.extraClasses = "ui-custom";
+		}
+	});
+	ok( picker.find( "td[id]:first a" ).hasClass( "ui-custom" ), "extraClasses applied" );
+
+	input.datepicker( "destroy" );
 });
 
 test( "numberOfMonths", function() {
diff --git a/ui/datepicker.js b/ui/datepicker.js
index 6839ca7e4..3afe5afd0 100644
--- a/ui/datepicker.js
+++ b/ui/datepicker.js
@@ -627,6 +627,11 @@ $.widget( "ui.datepicker", {
 			this.picker.appendTo( this._appendTo() );
 		}
 
+		if ( key === "eachDay" ) {
+			this.date.eachDay = this.options.eachDay;
+			this.refresh();
+		}
+
 		if ( key === "showWeek" ) {
 			this.refresh();
 		}