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add custom spa solution
This commit is contained in:
Jacky Zhao
parent
59109a8c1d
commit
3a29f4c86e
4 changed files with 138 additions and 6 deletions
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@ -71,6 +71,10 @@ yargs(hideBin(process.argv))
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setup(build) {
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build.onLoad({ filter: /\.inline\.(ts|js)$/ }, async (args) => {
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let text = await promises.readFile(args.path, 'utf8')
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// remove default exports that we manually inserted
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text = text.replace('export default', '')
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text = text.replace('export', '')
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const transpiled = await esbuild.build({
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stdin: {
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contents: text,
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@ -9,7 +9,7 @@ export default function Head({ fileData, externalResources }: QuartzComponentPro
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const baseDir = resolveToRoot(slug)
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const iconPath = baseDir + "/static/icon.png"
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const ogImagePath = baseDir + "/static/og-image.png"
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return <head>
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<title>{title}</title>
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<meta charSet="utf-8" />
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@ -24,7 +24,7 @@ export default function Head({ fileData, externalResources }: QuartzComponentPro
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<meta name="generator" content="Quartz" />
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<link rel="preconnect" href="https://fonts.googleapis.com" />
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<link rel="preconnect" href="https://fonts.gstatic.com" />
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{css.map(href => <link key={href} href={href} rel="stylesheet" type="text/css" />)}
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{js.filter(resource => resource.loadTime === "beforeDOMReady").map(resource => <script key={resource.src} {...resource} />)}
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{css.map(href => <link key={href} href={href} rel="stylesheet" type="text/css" spa-preserve />)}
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{js.filter(resource => resource.loadTime === "beforeDOMReady").map(resource => <script key={resource.src} {...resource} spa-preserve />)}
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</head>
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}
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@ -1,3 +1,130 @@
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import flamethrower from 'flamethrower-router'
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const router = flamethrower()
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export default "SpaScript"
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import micromorph from "micromorph"
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// adapted from `micromorph`
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// https://github.com/natemoo-re/micromorph
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const NODE_TYPE_ELEMENT = 1
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let announcer = document.createElement('route-announcer')
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const isElement = (target: EventTarget | null): target is Element => (target as Node)?.nodeType === NODE_TYPE_ELEMENT
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const isLocalUrl = (href: string) => {
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try {
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const url = new URL(href)
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if (window.location.origin === url.origin) {
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if (url.pathname === window.location.pathname) {
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return !url.hash
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}
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return true
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}
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} catch (e) { }
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return false
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}
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const getOpts = ({ target }: Event): { url: URL, scroll?: boolean } | undefined => {
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if (!isElement(target)) return
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const a = target.closest("a")
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if (!a) return
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if ('routerIgnore' in a.dataset) return
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const { href } = a
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if (!isLocalUrl(href)) return
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return { url: new URL(href), scroll: 'routerNoscroll' in a.dataset ? false : undefined }
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}
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let p: DOMParser
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async function navigate(url: URL, isBack: boolean = false) {
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p = p || new DOMParser()
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const contents = await fetch(`${url}`)
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.then((res) => res.text())
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.catch(() => {
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window.location.assign(url)
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})
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if (!contents) return;
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if (!isBack) {
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history.pushState({}, "", url)
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window.scrollTo({ top: 0 })
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}
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const html = p.parseFromString(contents, "text/html")
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let title = html.querySelector("title")?.textContent
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if (title) {
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document.title = title
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} else {
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const h1 = document.querySelector('h1')
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title = h1?.innerText ?? h1?.textContent ?? url.pathname
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}
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if (announcer.textContent !== title) {
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announcer.textContent = title
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}
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announcer.dataset.persist = ''
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html.body.appendChild(announcer)
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micromorph(document.body, html.body)
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// now, patch head
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const elementsToRemove = document.head.querySelectorAll(':not([spa-preserve])')
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elementsToRemove.forEach(el => el.remove())
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const elementsToAdd = html.head.querySelectorAll(':not([spa-preserve])')
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elementsToAdd.forEach(el => document.head.appendChild(el))
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if (!document.activeElement?.closest('[data-persist]')) {
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document.body.focus()
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}
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delete announcer.dataset.persist
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}
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function createRouter() {
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if (typeof window !== "undefined") {
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window.addEventListener("click", async (event) => {
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const { url } = getOpts(event) ?? {}
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if (!url) return
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event.preventDefault()
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try {
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navigate(url, false)
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} catch (e) {
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window.location.assign(url)
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}
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})
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window.addEventListener("popstate", () => {
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if (window.location.hash) return
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try {
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navigate(new URL(window.location.toString()), true)
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} catch (e) {
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window.location.reload()
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}
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return
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})
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}
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return new class Router {
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go(pathname: string) {
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const url = new URL(pathname, window.location.toString())
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return navigate(url, false)
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}
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back() {
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return window.history.back()
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}
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forward() {
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return window.history.forward()
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}
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}
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}
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createRouter()
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if (!customElements.get('route-announcer')) {
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const attrs = {
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'aria-live': 'assertive',
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'aria-atomic': 'true',
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'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'
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}
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customElements.define('route-announcer', class RouteAnnouncer extends HTMLElement {
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constructor() {
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super()
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}
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connectedCallback() {
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for (const [key, value] of Object.entries(attrs)) {
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this.setAttribute(key, value)
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}
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}
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})
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}
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@ -4,6 +4,7 @@ import { StaticResources } from '../resources'
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import { googleFontHref, joinStyles } from '../theme'
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import { EmitCallback, PluginTypes } from './types'
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import styles from '../styles/base.scss'
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// @ts-ignore
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import spaRouterScript from '../components/scripts/spa.inline'
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export type ComponentResources = {
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