diff options
| author | Veit Lehmann <[email protected]> | 2013-06-25 06:08:44 +0300 |
|---|---|---|
| committer | Veit Lehmann <[email protected]> | 2013-06-25 06:08:44 +0300 |
| commit | d1754390cc1c45eb469daf0221e235ca1a02d555 (patch) | |
| tree | b4e5f382efed6b6d21a5918c9ea0b7df9dc42d57 | |
| parent | d1343b844d96e808620a230ee8f39764acedb581 (diff) | |
only do article update operations once when scrolling
I discovered that DOM operations and function calls were done several times inside the 100px mirror when scrolling through articles. Especially painful on seamless scrolling systems like Mac OS, where dozens of updates would slow down this part dramatically. This change fixes it.
| -rw-r--r-- | js/viewfeed.js | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/js/viewfeed.js b/js/viewfeed.js index 9c48fbcdb..1c5811fe7 100644 --- a/js/viewfeed.js +++ b/js/viewfeed.js @@ -1281,7 +1281,8 @@ function headlines_scroll_handler(e) { var child = rows[i]; if ($("headlines-frame").scrollTop < child.offsetTop && - child.offsetTop - $("headlines-frame").scrollTop < 100) { + child.offsetTop - $("headlines-frame").scrollTop < 100 && + child.id.replace("RROW-", "") != _active_article_id) { if (_active_article_id) { var row = $("RROW-" + _active_article_id); |