56 lines
1.4 KiB
JavaScript
56 lines
1.4 KiB
JavaScript
/**
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* Expand or close the sidebar in mobile screens.
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* v2.0
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* https://github.com/cotes2020/jekyll-theme-chirpy
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* © 2018-2019 Cotes Chung
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* MIT License
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*/
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$(function(){
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var isExpanded = false;
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$("#sidebar-trigger").click(function() {
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if (isExpanded == false) {
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$("#sidebar").addClass("sidebar-expand");
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openModal();
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isExpanded = true;
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}
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});
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$("#mask").click(function() {
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$("#sidebar").removeClass("sidebar-expand");
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closeModal();
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isExpanded = false;
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});
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/**
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* ModalHelper helpers resolve the modal scrolling issue on mobile devices
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* https://github.com/twbs/bootstrap/issues/15852
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* requires document.scrollingElement polyfill https://github.com/yangg/scrolling-element
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*/
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var ModalHelper = (function(bodyCls) {
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var scrollTop;
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return {
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afterOpen: function() {
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scrollTop = document.scrollingElement.scrollTop;
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document.body.classList.add(bodyCls);
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document.body.style.top = -scrollTop + 'px';
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},
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beforeClose: function() {
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document.body.classList.remove(bodyCls);
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// scrollTop lost after set position:fixed, restore it back.
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document.scrollingElement.scrollTop = scrollTop;
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document.body.style.top = '';
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}
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};
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})('no-scroll');
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function openModal() {
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ModalHelper.afterOpen();
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}
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function closeModal() {
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ModalHelper.beforeClose();
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}
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}); |