From dc6755d0a285c857aa42419d85c10e6cbecf8160 Mon Sep 17 00:00:00 2001
From: Matthias Schmidt <gravatronics@live.com>
Date: Sat, 16 May 2015 11:47:59 +0200
Subject: [PATCH] Fix WCF.Table.EmptyTableHandler when MutationObserver is used

---
 wcfsetup/install/files/js/WCF.js | 91 ++++++++++++++++++++------------
 1 file changed, 56 insertions(+), 35 deletions(-)

diff --git a/wcfsetup/install/files/js/WCF.js b/wcfsetup/install/files/js/WCF.js
index b4977b77e3..ccb730481b 100755
--- a/wcfsetup/install/files/js/WCF.js
+++ b/wcfsetup/install/files/js/WCF.js
@@ -6338,7 +6338,7 @@ WCF.PageVisibilityHandler = {
 /**
  * Namespace for table related classes.
  */
-WCF.Table = {};
+WCF.Table = { };
 
 /**
  * Handles empty tables which can be used in combination with WCF.Action.Proxy.
@@ -6378,48 +6378,69 @@ WCF.Table.EmptyTableHandler = Class.extend({
 	},
 	
 	/**
-	 * Handles the removal of a DOM node.
+	 * Returns the current number of table rows.
+	 * 
+	 * @return	integer
 	 */
-	_remove: function(event) {
-		var element = $(event.target);
-		
-		// check if DOM element is relevant
-		if (element.hasClass(this._rowClassName)) {
-			var tbody = element.parents('tbody:eq(0)');
-			
-			// check if table will be empty if DOM node is removed
-			if (tbody.children('tr').length == 1) {
-				if (this._options.emptyMessage) {
-					// insert message
-					this._tableContainer.replaceWith($('<p />').addClass(this._options.messageType).text(this._options.emptyMessage));
-				}
-				else if (this._options.refreshPage) {
-					// refresh page
-					if (this._options.updatePageNumber) {
-						// calculate the new page number
-						var pageNumberURLComponents = window.location.href.match(/(\?|&)pageNo=(\d+)/g);
-						if (pageNumberURLComponents) {
-							var currentPageNumber = pageNumberURLComponents[pageNumberURLComponents.length - 1].match(/\d+/g);
-							if (this._options.updatePageNumber > 0) {
-								currentPageNumber++;
-							}
-							else {
-								currentPageNumber--;
-							}
-							
-							window.location = window.location.href.replace(pageNumberURLComponents[pageNumberURLComponents.length - 1], pageNumberURLComponents[pageNumberURLComponents.length - 1][0] + 'pageNo=' + currentPageNumber);
-						}
+	_getRowCount: function() {
+		return this._tableContainer.find('table tr.' + this._rowClassName).length;
+	},
+	
+	/**
+	 * Handles an empty table.
+	 */
+	_handleEmptyTable: function() {
+		if (this._options.emptyMessage) {
+			// insert message
+			this._tableContainer.replaceWith($('<p />').addClass(this._options.messageType).text(this._options.emptyMessage));
+		}
+		else if (this._options.refreshPage) {
+			// refresh page
+			if (this._options.updatePageNumber) {
+				// calculate the new page number
+				var pageNumberURLComponents = window.location.href.match(/(\?|&)pageNo=(\d+)/g);
+				if (pageNumberURLComponents) {
+					var currentPageNumber = pageNumberURLComponents[pageNumberURLComponents.length - 1].match(/\d+/g);
+					if (this._options.updatePageNumber > 0) {
+						currentPageNumber++;
 					}
 					else {
-						window.location.reload();
+						currentPageNumber--;
 					}
+					
+					window.location = window.location.href.replace(pageNumberURLComponents[pageNumberURLComponents.length - 1], pageNumberURLComponents[pageNumberURLComponents.length - 1][0] + 'pageNo=' + currentPageNumber);
 				}
-				else {
-					// simply remove the table container
-					this._tableContainer.remove();
+			}
+			else {
+				window.location.reload();
+			}
+		}
+		else {
+			// simply remove the table container
+			this._tableContainer.remove();
+		}
+	},
+	
+	/**
+	 * Handles the removal of a DOM node.
+	 */
+	_remove: function(event) {
+		if ($.getLength(event)) {
+			var element = $(event.target);
+			
+			// check if DOM element is relevant
+			if (element.hasClass(this._rowClassName)) {
+				var tbody = element.parents('tbody:eq(0)');
+				
+				// check if table will be empty if DOM node is removed
+				if (tbody.children('tr').length == 1) {
+					this._handleEmptyTable();
 				}
 			}
 		}
+		else if (!this._getRowCount()) {
+			this._handleEmptyTable();
+		}
 	}
 });
 
-- 
2.20.1