From 68c81b86034b459e7b13f66db61bd0e416548c8c Mon Sep 17 00:00:00 2001
From: Mischa POSLAWSKY <perl@shiar.org>
Date: Tue, 7 Dec 2010 22:43:00 +0100
Subject: [PATCH] browser: delay automatic search preview

Continuous application of query focus prevents rapid entry due to update on
each key press.  Ensure at most 1 request every 300ms after first keyup.
---
 searchlocal.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/searchlocal.js b/searchlocal.js
index 5d7493b..6c37fc9 100644
--- a/searchlocal.js
+++ b/searchlocal.js
@@ -1,3 +1,5 @@
+var filterupdate;
+
 function filtercell(el, set, action) {
 	switch (action) {
 		case 'focus':
@@ -54,6 +56,8 @@ function filterrows(table, match, action) {
 }
 
 function filtertable(query, action) {
+	filterupdate = undefined;
+	if (query === undefined) query = document.getElementById('search').q.value;
 	var table = document.getElementsByTagName('TABLE')[0];
 
 	if (!action) {
@@ -128,7 +132,8 @@ function prependsearch(target) {
 			newelement('input', {
 				type: 'search',
 				name: 'q',
-				onkeyup: "filtertable(this.value, 'focus')",
+				onkeyup: "if (!filterupdate) filterupdate = "
+					+ "window.setTimeout(filtertable, 300, undefined, 'focus')",
 			}),
 			newelement('input', {
 				type: 'button',
-- 
2.30.0