From 58d9dc0528cc5d7232ac7a237c98213ff1075f39 Mon Sep 17 00:00:00 2001
From: Jacky Zhao <j.zhao2k19@gmail.com>
Date: Thu, 17 Aug 2023 07:55:52 +0000
Subject: [PATCH] format
---
quartz/components/scripts/spa.inline.ts | 148 ++++++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 145 insertions(+), 3 deletions(-)
diff --git a/quartz/components/scripts/spa.inline.ts b/quartz/components/scripts/spa.inline.ts
index 4020c23..1b44ade 100644
--- a/quartz/components/scripts/spa.inline.ts
+++ b/quartz/components/scripts/spa.inline.ts
@@ -1,3 +1,145 @@
-import flamethrower from 'flamethrower-router'
-const router = flamethrower()
-export default "SpaScript"
+import micromorph from "micromorph"
+import { CanonicalSlug, RelativeURL, getCanonicalSlug } from "../../util/path"
+
+// adapted from `micromorph`
+// https://github.com/natemoo-re/micromorph
+
+const NODE_TYPE_ELEMENT = 1
+let announcer = document.createElement("route-announcer")
+const isElement = (target: EventTarget | null): target is Element =>
+ (target as Node)?.nodeType === NODE_TYPE_ELEMENT
+const isLocalUrl = (href: string) => {
+ try {
+ const url = new URL(href)
+ if (window.location.origin === url.origin) {
+ if (url.pathname === window.location.pathname) {
+ return !url.hash
+ }
+ return true
+ }
+ } catch (e) {}
+ return false
+}
+
+const getOpts = ({ target }: Event): { url: URL; scroll?: boolean } | undefined => {
+ if (!isElement(target)) return
+ const a = target.closest("a")
+ if (!a) return
+ if ("routerIgnore" in a.dataset) return
+ const { href } = a
+ if (!isLocalUrl(href)) return
+ return { url: new URL(href), scroll: "routerNoscroll" in a.dataset ? false : undefined }
+}
+
+function notifyNav(url: CanonicalSlug) {
+ const event: CustomEventMap["nav"] = new CustomEvent("nav", { detail: { url } })
+ document.dispatchEvent(event)
+}
+
+let p: DOMParser
+async function navigate(url: URL, isBack: boolean = false) {
+ p = p || new DOMParser()
+ const contents = await fetch(`${url}`)
+ .then((res) => res.text())
+ .catch(() => {
+ window.location.assign(url)
+ })
+
+ if (!contents) return
+ if (!isBack) {
+ history.pushState({}, "", url)
+ window.scrollTo({ top: 0 })
+ }
+
+ const html = p.parseFromString(contents, "text/html")
+ let title = html.querySelector("title")?.textContent
+ if (title) {
+ document.title = title
+ } else {
+ const h1 = document.querySelector("h1")
+ title = h1?.innerText ?? h1?.textContent ?? url.pathname
+ }
+ if (announcer.textContent !== title) {
+ announcer.textContent = title
+ }
+ announcer.dataset.persist = ""
+ html.body.appendChild(announcer)
+
+ micromorph(document.body, html.body)
+
+ // now, patch head
+ const elementsToRemove = document.head.querySelectorAll(":not([spa-preserve])")
+ elementsToRemove.forEach((el) => el.remove())
+ const elementsToAdd = html.head.querySelectorAll(":not([spa-preserve])")
+ elementsToAdd.forEach((el) => document.head.appendChild(el))
+
+ notifyNav(getCanonicalSlug(window))
+ delete announcer.dataset.persist
+}
+
+window.spaNavigate = navigate
+
+function createRouter() {
+ if (typeof window !== "undefined") {
+ window.addEventListener("click", async (event) => {
+ const { url } = getOpts(event) ?? {}
+ if (!url) return
+ event.preventDefault()
+ try {
+ navigate(url, false)
+ } catch (e) {
+ window.location.assign(url)
+ }
+ })
+
+ window.addEventListener("popstate", () => {
+ if (window.location.hash) return
+ try {
+ navigate(new URL(window.location.toString()), true)
+ } catch (e) {
+ window.location.reload()
+ }
+ return
+ })
+ }
+
+ return new (class Router {
+ go(pathname: RelativeURL) {
+ const url = new URL(pathname, window.location.toString())
+ return navigate(url, false)
+ }
+
+ back() {
+ return window.history.back()
+ }
+
+ forward() {
+ return window.history.forward()
+ }
+ })()
+}
+
+createRouter()
+notifyNav(getCanonicalSlug(window))
+
+if (!customElements.get("route-announcer")) {
+ const attrs = {
+ "aria-live": "assertive",
+ "aria-atomic": "true",
+ style:
+ "position: absolute; left: 0; top: 0; clip: rect(0 0 0 0); clip-path: inset(50%); overflow: hidden; white-space: nowrap; width: 1px; height: 1px",
+ }
+ customElements.define(
+ "route-announcer",
+ class RouteAnnouncer extends HTMLElement {
+ constructor() {
+ super()
+ }
+ connectedCallback() {
+ for (const [key, value] of Object.entries(attrs)) {
+ this.setAttribute(key, value)
+ }
+ }
+ },
+ )
+}
--
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