| | |
| | | import { computePosition, flip, inline, shift } from "@floating-ui/dom" |
| | | |
| | | // from micromorph/src/utils.ts |
| | | // https://github.com/natemoo-re/micromorph/blob/main/src/utils.ts#L5 |
| | | export function normalizeRelativeURLs( |
| | | el: Element | Document, |
| | | base: string | URL |
| | | ) { |
| | | const update = (el: Element, attr: string, base: string | URL) => { |
| | | el.setAttribute(attr, new URL(el.getAttribute(attr)!, base).pathname) |
| | | } |
| | | |
| | | el.querySelectorAll('[href^="./"], [href^="../"]').forEach((item) => |
| | | update(item, 'href', base) |
| | | ) |
| | | |
| | | el.querySelectorAll('[src^="./"], [src^="../"]').forEach((item) => |
| | | update(item, 'src', base) |
| | | ) |
| | | } |
| | | import { normalizeRelativeURLs } from "../../util/path" |
| | | |
| | | const p = new DOMParser() |
| | | async function mouseEnterHandler(this: HTMLLinkElement, { clientX, clientY }: { clientX: number, clientY: number }) { |
| | | async function mouseEnterHandler( |
| | | this: HTMLLinkElement, |
| | | { clientX, clientY }: { clientX: number; clientY: number }, |
| | | ) { |
| | | const link = this |
| | | if (link.dataset.noPopover === "true") { |
| | | return |
| | | } |
| | | |
| | | async function setPosition(popoverElement: HTMLElement) { |
| | | const { x, y } = await computePosition(link, popoverElement, { |
| | | middleware: [ |
| | | inline({ x: clientX, y: clientY }), |
| | | shift(), |
| | | flip() |
| | | ] |
| | | middleware: [inline({ x: clientX, y: clientY }), shift(), flip()], |
| | | }) |
| | | Object.assign(popoverElement.style, { |
| | | left: `${x}px`, |
| | |
| | | }) |
| | | } |
| | | |
| | | const hasAlreadyBeenFetched = () => |
| | | [...link.children].some((child) => child.classList.contains("popover")) |
| | | |
| | | // dont refetch if there's already a popover |
| | | if ([...link.children].some(child => child.classList.contains("popover"))) { |
| | | if (hasAlreadyBeenFetched()) { |
| | | return setPosition(link.lastChild as HTMLElement) |
| | | } |
| | | |
| | |
| | | const hash = targetUrl.hash |
| | | targetUrl.hash = "" |
| | | targetUrl.search = "" |
| | | // prevent hover of the same page |
| | | if (thisUrl.toString() === targetUrl.toString()) return |
| | | |
| | | const contents = await fetch(`${targetUrl}`) |
| | | .then((res) => res.text()) |
| | | .catch((err) => { |
| | | console.error(err) |
| | | }) |
| | | const response = await fetch(`${targetUrl}`).catch((err) => { |
| | | console.error(err) |
| | | }) |
| | | |
| | | if (!contents) return |
| | | const html = p.parseFromString(contents, "text/html") |
| | | normalizeRelativeURLs(html, targetUrl) |
| | | const elts = [...html.getElementsByClassName("popover-hint")] |
| | | if (elts.length === 0) return |
| | | // bailout if another popover exists |
| | | if (hasAlreadyBeenFetched()) { |
| | | return |
| | | } |
| | | |
| | | if (!response) return |
| | | const contentType = response.headers.get("Content-Type") |
| | | const contentTypeCategory = contentType?.split("/")[0] ?? "text" |
| | | |
| | | const popoverElement = document.createElement("div") |
| | | popoverElement.classList.add("popover") |
| | | const popoverInner = document.createElement("div") |
| | | popoverInner.classList.add("popover-inner") |
| | | popoverElement.appendChild(popoverInner) |
| | | elts.forEach(elt => popoverInner.appendChild(elt)) |
| | | |
| | | popoverInner.dataset.contentType = contentTypeCategory |
| | | |
| | | switch (contentTypeCategory) { |
| | | case "image": |
| | | const img = document.createElement("img") |
| | | |
| | | response.blob().then((blob) => { |
| | | img.src = URL.createObjectURL(blob) |
| | | }) |
| | | img.alt = targetUrl.pathname |
| | | |
| | | popoverInner.appendChild(img) |
| | | break |
| | | default: |
| | | const contents = await response.text() |
| | | const html = p.parseFromString(contents, "text/html") |
| | | normalizeRelativeURLs(html, targetUrl) |
| | | const elts = [...html.getElementsByClassName("popover-hint")] |
| | | if (elts.length === 0) return |
| | | |
| | | elts.forEach((elt) => popoverInner.appendChild(elt)) |
| | | } |
| | | |
| | | setPosition(popoverElement) |
| | | link.appendChild(popoverElement) |
| | |
| | | const heading = popoverInner.querySelector(hash) as HTMLElement | null |
| | | if (heading) { |
| | | // leave ~12px of buffer when scrolling to a heading |
| | | popoverInner.scroll({ top: heading.offsetTop - 12, behavior: 'instant' }) |
| | | popoverInner.scroll({ top: heading.offsetTop - 12, behavior: "instant" }) |
| | | } |
| | | } |
| | | } |
| | |
| | | document.addEventListener("nav", () => { |
| | | const links = [...document.getElementsByClassName("internal")] as HTMLLinkElement[] |
| | | for (const link of links) { |
| | | link.removeEventListener("mouseenter", mouseEnterHandler) |
| | | link.addEventListener("mouseenter", mouseEnterHandler) |
| | | window.addCleanup(() => link.removeEventListener("mouseenter", mouseEnterHandler)) |
| | | } |
| | | }) |