52 lines
1.6 KiB
JavaScript
52 lines
1.6 KiB
JavaScript
document.addEventListener("DOMContentLoaded", function () {
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var content = document.querySelector("main");
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if (!content) return;
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var headings = content.querySelectorAll("h2, h3, h4");
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if (headings.length < 2) return;
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var nav = document.createElement("nav");
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nav.className = "toc";
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var header = document.createElement("div");
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header.className = "panel-header";
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header.textContent = "Contents";
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nav.appendChild(header);
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var list = document.createElement("ul");
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headings.forEach(function (h) {
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if (!h.id) return;
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var li = document.createElement("li");
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li.className = "toc-" + h.tagName.toLowerCase();
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var a = document.createElement("a");
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a.href = "#" + h.id;
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var clone = h.cloneNode(true);
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clone.querySelectorAll(".btn, .muted, .heading-anchor").forEach(function (el) { el.remove(); });
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a.textContent = clone.textContent.trim();
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li.appendChild(a);
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list.appendChild(li);
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});
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nav.appendChild(list);
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var rail = document.querySelector(".right-rail");
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if (!rail) {
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rail = document.createElement("div");
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rail.className = "right-rail";
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document.body.appendChild(rail);
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}
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rail.appendChild(nav);
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var fab = document.createElement("button");
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fab.type = "button";
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fab.className = "btn btn-fab fab";
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fab.title = "Contents";
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fab.setAttribute("aria-label", "Contents");
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fab.setAttribute("aria-expanded", "false");
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fab.textContent = "≡";
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fab.addEventListener("click", function () {
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var open = nav.classList.toggle("is-open");
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fab.setAttribute("aria-expanded", open ? "true" : "false");
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});
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document.body.appendChild(fab);
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});
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