From: ArthurHoaro <arthur@hoa.ro>
Date: Sun, 1 Oct 2017 09:49:17 +0000 (+0200)
Subject: Fix jumpy textarea with long content in post edit
X-Git-Tag: v0.9.2~1^2~3^2
X-Git-Url: https://git.immae.eu/?a=commitdiff_plain;h=9c46b347b8118a127ca965106f66bb4d4d43f427;hp=a59bbf50d7530d7e82a91896a210b9da49cb1568;p=github%2Fshaarli%2FShaarli.git

Fix jumpy textarea with long content in post edit

We manually reset the scroll position, to avoid height = 'auto' jump to the top

Fixes #971
---

diff --git a/tpl/default/js/shaarli.js b/tpl/default/js/shaarli.js
index 1c66ebbd..55656f80 100644
--- a/tpl/default/js/shaarli.js
+++ b/tpl/default/js/shaarli.js
@@ -275,8 +275,14 @@ window.onload = function () {
     };
     function init () {
         function resize () {
+            /* Fix jumpy resizing: https://stackoverflow.com/a/18262927/1484919 */
+            var scrollTop  = window.pageYOffset ||
+                (document.documentElement || document.body.parentNode || document.body).scrollTop;
+
             description.style.height = 'auto';
             description.style.height = description.scrollHeight+10+'px';
+
+            window.scrollTo(0, scrollTop);
         }
         /* 0-timeout to get the already changed text */
         function delayedResize () {