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[frio] Improve back to top button behavior at bottom of page

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This commit is contained in:
Hypolite Petovan 2020-02-09 18:14:06 -05:00
parent 16acf1db95
commit 5930d94c91
1 changed files with 13 additions and 3 deletions
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16
view/theme/frio/js/theme.js
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@ -3,11 +3,21 @@ var jotcache = ''; //The jot cache. We use it as cache to restore old/original j
$(document).ready(function(){ $(document).ready(function(){
//fade in/out based on scrollTop value //fade in/out based on scrollTop value
var scrollStart;
$(window).scroll(function () { $(window).scroll(function () {
if ($(this).scrollTop() > 1000) { let currentScroll = $(this).scrollTop();
$("#back-to-top").fadeIn();
} else { // Top of the page or going down = hide the button
if (!scrollStart || !currentScroll || currentScroll > scrollStart) {
$("#back-to-top").fadeOut(); $("#back-to-top").fadeOut();
scrollStart = currentScroll;
}
// Going up enough = show the button
if (scrollStart - currentScroll > 100) {
$("#back-to-top").fadeIn();
scrollStart = currentScroll;
} }
}); });