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only update floatingTitle innerHTML if active article changes

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This will boost scrolling performance pretty much and avoid flickering of floatingTitle
This commit is contained in:
Veit Lehmann 2013-06-09 02:02:14 +03:00
parent 496195db4e
commit 5313ae17e4
1 changed files with 4 additions and 3 deletions
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7
js/viewfeed.js
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@ -2208,9 +2208,10 @@ function updateFloatingTitle() {
var header = child.getElementsByClassName("cdmHeader")[0];
$("floatingTitle").setAttribute("rowid", child.id);
$("floatingTitle").innerHTML =
header.innerHTML;
if (child.id != $("floatingTitle").getAttribute("rowid")) {
$("floatingTitle").setAttribute("rowid", child.id);
$("floatingTitle").innerHTML = header.innerHTML;
}
if (child.offsetTop < hf.scrollTop - header.offsetHeight - 100 &&
child.offsetTop + child.offsetHeight - hf.scrollTop > 100)