From 5fbe668d8615b86aca58d7c0e36de133b63baa29 Mon Sep 17 00:00:00 2001
From: TJ VanToll <tj.vantoll@gmail.com>
Date: Fri, 15 Nov 2013 09:17:13 -0500
Subject: [PATCH] Datepicker: Various changes for the `showWeek` option

* Re-add `ui-datepicker-week-col` class name currently used.
* Add test suite.
* Support changing option after initialization.
---
 tests/unit/datepicker/datepicker_options.js | 24 ++++++++++++++++++++-
 ui/datepicker.js                            |  8 +++++--
 2 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/tests/unit/datepicker/datepicker_options.js b/tests/unit/datepicker/datepicker_options.js
index 72f459db0..67302345c 100644
--- a/tests/unit/datepicker/datepicker_options.js
+++ b/tests/unit/datepicker/datepicker_options.js
@@ -57,7 +57,29 @@ test( "position", function() {
 });
 
 test( "showWeek", function() {
-	expect( 0 );
+	expect( 7 );
+	var input = $( "#datepicker" ).datepicker(),
+		container = input.datepicker( "widget" );
+
+	equal( container.find( "thead th" ).length, 7, "just 7 days, no column cell" );
+	equal( container.find( ".ui-datepicker-week-col" ).length, 0,
+		"no week column cells present" );
+	input.datepicker( "destroy" );
+
+	input = $( "#datepicker" ).datepicker({ showWeek: true });
+	container = input.datepicker( "widget" );
+	equal( container.find( "thead th" ).length, 8, "7 days + a column cell" );
+	ok( container.find( "thead th:first" ).is( ".ui-datepicker-week-col" ),
+		"first cell should have ui-datepicker-week-col class name" );
+	equal( container.find( ".ui-datepicker-week-col" ).length,
+		container.find( "tr" ).length, "one week cell for each week" );
+	input.datepicker( "destroy" );
+
+	input = $( "#datepicker" ).datepicker();
+	container = input.datepicker( "widget" );
+	equal( container.find( "thead th" ).length, 7, "no week column" );
+	input.datepicker( "option", "showWeek", true );
+	equal( container.find( "thead th" ).length, 8, "supports changing option after init" );
 });
 
 /*
diff --git a/ui/datepicker.js b/ui/datepicker.js
index 28fd9191a..7264a556e 100644
--- a/ui/datepicker.js
+++ b/ui/datepicker.js
@@ -407,7 +407,7 @@ $.widget( "ui.datepicker", {
 			labels = Globalize.localize( "datepicker" );
 
 		if ( this.options.showWeek ) {
-			cells += "<th>" + labels.weekHeader + "</th>";
+			cells += "<th class='ui-datepicker-week-col'>" + labels.weekHeader + "</th>";
 		}
 		for ( i; i < this.date.weekdays().length; i++ ) {
 			cells += this._buildGridHeaderCell( this.date.weekdays()[i] );
@@ -436,7 +436,7 @@ $.widget( "ui.datepicker", {
 			i = 0;
 
 		if ( this.options.showWeek ) {
-			cells += "<td>" + week.number + "</td>";
+			cells += "<td class='ui-datepicker-week-col'>" + week.number + "</td>";
 		}
 		for ( i; i < week.days.length; i++ ) {
 			cells += this._buildDayCell( week.days[i] );
@@ -625,6 +625,10 @@ $.widget( "ui.datepicker", {
 		if ( key === "appendTo" ) {
 			this.picker.appendTo( this._appendTo() );
 		}
+
+		if ( key === "showWeek" ) {
+			this.refresh();
+		}
 	}
 });
 
-- 
2.39.5