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gallery-dl/docs/links.js

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JavaScript
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"use strict";
function add_header_links()
{
let style = document.createElement("style");
style.id = "headerlinks"
document.head.appendChild(style);
style.sheet.insertRule(
"a.headerlink {" +
" visibility: hidden;" +
" text-decoration: none;" +
" font-size: 0.8em;" +
" padding: 0 4px 0 4px;" +
"}");
style.sheet.insertRule(
":hover > a.headerlink {" +
" visibility: visible;" +
"}");
let headers = document.querySelectorAll("h2, h3, h4, h5, h6");
for (let i = 0, len = headers.length; i < len; ++i)
{
let header = headers[i];
let id = header.id || header.parentNode.id;
if (!id)
continue;
let link = document.createElement("a");
link.href = "#" + id;
link.className = "headerlink";
link.textContent = "¶";
header.appendChild(link);
}
}
if (document.readyState !== "loading") {
add_header_links();
} else {
document.addEventListener("DOMContentLoaded", add_header_links);
}