show "back to top" only when needed

This commit is contained in:
botsi 2020-02-03 21:26:34 +01:00
parent 6162b3fcae
commit b30754a243

View file

@ -16,11 +16,11 @@ var Cl = window.Cl || {};
// ############################################################################# // #############################################################################
// BASE // BASE
// istanbul ignore next // istanbul ignore next
(function ($) { (function($) {
'use strict'; 'use strict';
// shorthand for invoking jQuery(document).ready // shorthand for invoking jQuery(document).ready
$(function () { $(function() {
// removes noscript form body and adds print-js // removes noscript form body and adds print-js
if (window.Cl && window.Cl.Utils) { if (window.Cl && window.Cl.Utils) {
Cl.Utils._document(); Cl.Utils._document();
@ -33,6 +33,18 @@ var Cl = window.Cl || {};
'lowerThan': 'boxShadow' 'lowerThan': 'boxShadow'
}); });
} }
// custom functions "botsicode"
const backTop = document.querySelector('.list-inline .pull-right'),
bodyContainer = document.querySelector('body>div.container'),
shBackTop = function() {
if (backTop && bodyContainer) {
backTop.style.opacity = +(bodyContainer.offsetTop + bodyContainer.getBoundingClientRect().height > window.innerHeight);
}
};
$(window).resize(shBackTop);
$(window).scroll(shBackTop);
shBackTop();
}); });
})(jQuery); })(jQuery);