From 1ee52daba65cdb2906a0789591259e0c04b234af Mon Sep 17 00:00:00 2001
From: Alexander Ebert <ebert@woltlab.com>
Date: Sat, 27 Dec 2014 12:46:57 +0100
Subject: [PATCH] Removing markers can yield empty text nodes, slowing down
 rendering

---
 .../3rdParty/redactor/plugins/wmonkeypatch.js | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/wcfsetup/install/files/js/3rdParty/redactor/plugins/wmonkeypatch.js b/wcfsetup/install/files/js/3rdParty/redactor/plugins/wmonkeypatch.js
index bdacccb906..7043fbd9a2 100644
--- a/wcfsetup/install/files/js/3rdParty/redactor/plugins/wmonkeypatch.js
+++ b/wcfsetup/install/files/js/3rdParty/redactor/plugins/wmonkeypatch.js
@@ -36,6 +36,7 @@ RedactorPlugins.wmonkeypatch = function() {
 			this.wmonkeypatch.modal();
 			this.wmonkeypatch.paste();
 			this.wmonkeypatch.observe();
+			this.wmonkeypatch.selection();
 			this.wmonkeypatch.utils();
 			
 			// templates
@@ -790,6 +791,25 @@ RedactorPlugins.wmonkeypatch = function() {
 			}).bind(this);
 		},
 		
+		/**
+		 * Partially overwrites the 'selection' module.
+		 * 
+		 *  - remove superflous empty text nodes caused by the selection markers (#2083)
+		 */
+		selection: function() {
+			// selection.removeMarkers
+			this.selection.removeMarkers = (function() {
+				this.$editor.find('span.redactor-selection-marker').each(function(index, marker) {
+					var $nextSibling = marker.nextSibling;
+					if ($nextSibling !== null && $nextSibling.nodeType === Element.TEXT_NODE && $nextSibling.length === 0) {
+						$($nextSibling).remove();
+					}
+					
+					$(marker).remove();
+				});
+			}).bind(this);
+		},
+		
 		/**
 		 * Partially overwrites the 'utils' module.
 		 * 
-- 
2.20.1