AMR/docs/articles/SPSS_files/anchor-sections-1.0/anchor-sections.js

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2020-10-26 12:23:03 +01:00
// Anchor sections v1.0 written by Atsushi Yasumoto on Oct 3rd, 2020.
document.addEventListener('DOMContentLoaded', function() {
// Do nothing if AnchorJS is used
if (typeof window.anchors === 'object' && anchors.hasOwnProperty('hasAnchorJSLink')) {
return;
}
const h = document.querySelectorAll('h1, h2, h3, h4, h5, h6');
// Do nothing if sections are already anchored
if (Array.from(h).some(x => x.classList.contains('hasAnchor'))) {
return null;
}
// Use section id when pandoc runs with --section-divs
const section_id = function(x) {
return ((x.classList.contains('section') || (x.tagName === 'SECTION'))
? x.id : '');
};
// Add anchors
h.forEach(function(x) {
const id = x.id || section_id(x.parentElement);
if (id === '') {
return null;
}
let anchor = document.createElement('a');
anchor.href = '#' + id;
anchor.classList = ['anchor-section'];
x.classList.add('hasAnchor');
x.appendChild(anchor);
});
});