From 001740db3fed614204be7e950ddb95c4df1f0334 Mon Sep 17 00:00:00 2001
From: Alexander Ebert <ebert@woltlab.com>
Date: Fri, 1 Feb 2019 18:35:12 +0100
Subject: [PATCH] Decrease ACP search frequency and ignore control characters

The search still yields quite a few requests, but this is fine considering that it is (a) limited to the admin panel and (b) having faster results is a worthy trade off.
---
 wcfsetup/install/files/acp/js/WCF.ACP.js |  2 ++
 wcfsetup/install/files/js/WCF.js         | 12 ++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/wcfsetup/install/files/acp/js/WCF.ACP.js b/wcfsetup/install/files/acp/js/WCF.ACP.js
index 6e246add6d..d48e7c392b 100644
--- a/wcfsetup/install/files/acp/js/WCF.ACP.js
+++ b/wcfsetup/install/files/acp/js/WCF.ACP.js
@@ -1678,6 +1678,8 @@ WCF.ACP.Category.Collapsible = WCF.Collapsible.SimpleRemote.extend({
  * @see	WCF.Search.Base
  */
 WCF.ACP.Search = WCF.Search.Base.extend({
+	_delay: 250,
+	
 	/**
 	 * name of the selected search provider
 	 * @var	string
diff --git a/wcfsetup/install/files/js/WCF.js b/wcfsetup/install/files/js/WCF.js
index 66d6682d3b..c223d5f3cb 100755
--- a/wcfsetup/install/files/js/WCF.js
+++ b/wcfsetup/install/files/js/WCF.js
@@ -4101,6 +4101,11 @@ WCF.Search.Base = Class.extend({
 	 */
 	_itemIndex: -1,
 	
+	/**
+	 * @var string
+	 */
+	_lastValue: '',
+	
 	/**
 	 * result list
 	 * @var	jQuery
@@ -4156,6 +4161,7 @@ WCF.Search.Base = Class.extend({
 		this._caretAt = -1;
 		this._delay = 0;
 		this._excludedSearchValues = [];
+		this._lastValue = '';
 		if (excludedSearchValues) {
 			this._excludedSearchValues = excludedSearchValues;
 		}
@@ -4257,6 +4263,12 @@ WCF.Search.Base = Class.extend({
 			this._clearList(false);
 		}
 		else if ($content.length >= this._triggerLength) {
+			if (this._lastValue === $content) {
+				return;
+			}
+			
+			this._lastValue = $content;
+			
 			var $parameters = {
 				data: {
 					excludedSearchValues: this._excludedSearchValues,
-- 
2.20.1