| | |
| | | const bufferPx = 150 |
| | | const observer = new IntersectionObserver((entries) => { |
| | | for (const entry of entries) { |
| | | const slug = entry.target.id |
| | |
| | | |
| | | function toggleToc(this: HTMLElement) { |
| | | this.classList.toggle("collapsed") |
| | | this.setAttribute( |
| | | "aria-expanded", |
| | | this.getAttribute("aria-expanded") === "true" ? "false" : "true", |
| | | ) |
| | | const content = this.nextElementSibling as HTMLElement | undefined |
| | | if (!content) return |
| | | content.classList.toggle("collapsed") |
| | | content.style.maxHeight = content.style.maxHeight === "0px" ? content.scrollHeight + "px" : "0px" |
| | | } |
| | | |
| | | function setupToc() { |
| | | const toc = document.getElementById("toc") |
| | | if (toc) { |
| | | const collapsed = toc.classList.contains("collapsed") |
| | | const content = toc.nextElementSibling as HTMLElement | undefined |
| | | if (!content) return |
| | | content.style.maxHeight = collapsed ? "0px" : content.scrollHeight + "px" |
| | | toc.removeEventListener("click", toggleToc) |
| | | toc.addEventListener("click", toggleToc) |
| | | for (const toc of document.querySelectorAll(".toc")) { |
| | | const button = toc.querySelector(".toc-header") |
| | | const content = toc.querySelector(".toc-content") |
| | | if (!button || !content) return |
| | | button.addEventListener("click", toggleToc) |
| | | window.addCleanup(() => button.removeEventListener("click", toggleToc)) |
| | | } |
| | | } |
| | | |
| | | window.addEventListener("resize", setupToc) |
| | | document.addEventListener("nav", () => { |
| | | setupToc() |
| | | |