Ticket #9605: screen_options.diff

wp-admin/includes/template.php

@@ -3545 +3545 @@
 }
 
 function screen_options($screen) {
-        switch ( $screen ) {
-                case 'edit':
-                        $per_page_label = __('Posts per page:');
-                        break;
-                case 'edit-pages':
-                        $per_page_label = __('Pages per page:');
-                        break;
-                case 'edit-comments':
-                        $per_page_label = __('Comments per page:');
-                        break;
-                case 'upload':
-                        $per_page_label = __('Media items per page:');
-                        break;
-                case 'categories':
-                        $per_page_label = __('Categories per page:');
-                        break;
-                case 'edit-tags':
-                        $per_page_label = __('Tags per page:');
-                        break;
-                case 'plugins':
-                        $per_page_label = __('Plugins per page:');
-                        break;
-                default:
-                        return '';
-        }
 
+        $per_page_labels                                = array();
+        $per_page_labels['edit']                = __('Posts per page:');
+        $per_page_labels['edit-pages']  = __('Pages per page:');
+        $per_page_labels['edit-comments']       = __('Comments per page:');
+        $per_page_labels['upload']              = __('Media items per page:');
+        $per_page_labels['categories']  = __('Categories per page:');
+        $per_page_labels['edit-tags']   = __('Tags per page:');
+        $per_page_labels['plugins']             = __('Plugins per page:');
+        
+        $per_page_labels = apply_filters('per_page_labels', $per_page_labels, $screen);
+
+        if (!isset($per_page_labels[$screen])) return '';
+
+        $per_page_label = $per_page_labels[$screen];
+
         $option = str_replace('-', '_', "${screen}_per_page");
         $per_page = get_user_option($option);
         if ( empty($per_page) )