From 284fc1d040dc1b2d1222aebbeade19fc900adeaa Mon Sep 17 00:00:00 2001
From: Ryan Boren <ryan@git.wordpress.org>
Date: Tue, 18 Nov 2008 20:49:39 +0000
Subject: [PATCH] register_column_headers()

git-svn-id: https://develop.svn.wordpress.org/trunk@9763 602fd350-edb4-49c9-b593-d223f7449a82
---
 wp-admin/includes/template.php | 51 ++++++++++++++++++++++++----------
 1 file changed, 36 insertions(+), 15 deletions(-)

diff --git a/wp-admin/includes/template.php b/wp-admin/includes/template.php
index a3fcce2581..3bafb79f6f 100644
--- a/wp-admin/includes/template.php
+++ b/wp-admin/includes/template.php
@@ -745,21 +745,24 @@ function wp_manage_pages_columns() {
  * @return unknown
  */
 function get_column_headers($page) {
-	static $columns = array();
+	global $_wp_column_headers;
+
+	if ( !isset($_wp_column_headers) )
+		$_wp_column_headers = array();
 
 	// Store in static to avoid running filters on each call
-	if ( isset($columns[$page]) )
-		return $columns[$page];
+	if ( isset($_wp_column_headers[$page]) )
+		return $_wp_column_headers[$page];
 
 	switch ($page) {
 		case 'edit':
-			 $columns[$page] = wp_manage_posts_columns();
+			 $_wp_column_headers[$page] = wp_manage_posts_columns();
 			 break;
 		case 'edit-pages':
-			$columns[$page] = wp_manage_pages_columns();
+			$_wp_column_headers[$page] = wp_manage_pages_columns();
 			break;
 		case 'edit-comments':
-			$columns[$page] = array(
+			$_wp_column_headers[$page] = array(
 				'cb' => '<input type="checkbox" />',
 				'comment' => __('Comment'),
 				'author' => __('Author'),
@@ -769,7 +772,7 @@ function get_column_headers($page) {
 
 			break;
 		case 'link-manager':
-			$columns[$page] = array(
+			$_wp_column_headers[$page] = array(
 				'cb' => '<input type="checkbox" />',
 				'name' => __('Name'),
 				'url' => __('URL'),
@@ -780,10 +783,10 @@ function get_column_headers($page) {
 
 			break;
 		case 'upload':
-			$columns[$page] = wp_manage_media_columns();
+			$_wp_column_headers[$page] = wp_manage_media_columns();
 			break;
 		case 'categories':
-			$columns[$page] = array(
+			$_wp_column_headers[$page] = array(
 				'cb' => '<input type="checkbox" />',
 				'name' => __('Name'),
 				'description' => __('Description'),
@@ -793,7 +796,7 @@ function get_column_headers($page) {
 
 			break;
 		case 'edit-link-categories':
-			$columns[$page] = array(
+			$_wp_column_headers[$page] = array(
 				'cb' => '<input type="checkbox" />',
 				'name' => __('Name'),
 				'description' => __('Description'),
@@ -802,7 +805,7 @@ function get_column_headers($page) {
 
 			break;
 		case 'edit-tags':
-			$columns[$page] = array(
+			$_wp_column_headers[$page] = array(
 				'cb' => '<input type="checkbox" />',
 				'name' => __('Name'),
 				'slug' => __('Slug'),
@@ -811,7 +814,7 @@ function get_column_headers($page) {
 
 			break;
 		case 'users':
-			$columns[$page] = array(
+			$_wp_column_headers[$page] = array(
 				'cb' => '<input type="checkbox" />',
 				'username' => __('Username'),
 				'name' => __('Name'),
@@ -821,11 +824,11 @@ function get_column_headers($page) {
 			);
 			break;
 		default :
-			$columns[$page] = array();
+			$_wp_column_headers[$page] = array();
 	}
 
-	$columns[$page] = apply_filters('manage_' . $page . '_columns', $columns[$page]);
-	return $columns[$page];
+	$_wp_column_headers[$page] = apply_filters('manage_' . $page . '_columns', $_wp_column_headers[$page]);
+	return $_wp_column_headers[$page];
 }
 
 /**
@@ -870,6 +873,24 @@ function print_column_headers( $type, $id = true ) {
 <?php }
 }
 
+/**
+ * Register column headers for a particular screen.  The header names will be listed in the Screen Options.
+ *
+ * @since 2.7.0
+ *
+ * @param string $screen The handle for the screen to add help to.  This is usually the hook name returned by the add_*_page() functions.
+ * @param array $columns An array of columns with column IDs as the keys and translated column names as the values
+ * @see get_column_headers(), print_column_headers(), get_hidden_columns()
+ */
+function register_column_headers($screen, $columns) {
+	global $_wp_column_headers;
+
+	if ( !isset($_wp_column_headers) )
+		$_wp_column_headers = array();
+
+	$_wp_column_headers[$screen] = $columns;
+}
+
 /**
  * {@internal Missing Short Description}}
  *