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Cache the window selector as 'viewport' in an attempt to improve performance.

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(imported from commit 3e01382260938737fbee663f6a9e94ad495ef21e)
This commit is contained in:
Waseem Daher
2012-10-15 22:07:52 -04:00
parent 45629a362d
commit b76422d8d0
4 changed files with 3 additions and 12 deletions
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3
zephyr/static/js/ui.js
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@@ -72,7 +72,6 @@ function mousemove() {
}
function resizehandler(e) {
var viewport = $(window);
var sidebar = $("#sidebar");
var sidebar_nav = $(".sidebar-nav");
var composebox = $("#compose");
@@ -274,13 +273,11 @@ $(function () {
$('#sidebar a[data-toggle="pill"]').on('show', function (e) {
// Save the position of our old tab away, before we switch
var viewport = $(window);
var old_tab = $(e.relatedTarget).attr('href');
scroll_positions[old_tab] = viewport.scrollTop();
});
$('#sidebar a[data-toggle="pill"]').on('shown', function (e) {
// Right after we show the new tab, restore its old scroll position
var viewport = $(window);
var target_tab = $(e.target).attr('href');
if (scroll_positions.hasOwnProperty(target_tab)) {
viewport.scrollTop(scroll_positions[target_tab]);