From c4cf0dcb022ff826433b63b8ff68830bb8503895 Mon Sep 17 00:00:00 2001
From: Jacky Zhao <j.zhao2k19@gmail.com>
Date: Sun, 18 Jun 2023 17:47:07 +0000
Subject: [PATCH] local and global graph

---
 quartz/components/Head.tsx |   69 +++++++++++++++++++++-------------
 1 files changed, 42 insertions(+), 27 deletions(-)

diff --git a/quartz/components/Head.tsx b/quartz/components/Head.tsx
index cc9dd77..a0b62b7 100644
--- a/quartz/components/Head.tsx
+++ b/quartz/components/Head.tsx
@@ -2,32 +2,47 @@
 import { JSResourceToScriptElement } from "../resources"
 import { QuartzComponentConstructor, QuartzComponentProps } from "./types"
 
-function Head({ fileData, externalResources }: QuartzComponentProps) {
-  const slug = fileData.slug!
-  const title = fileData.frontmatter?.title ?? "Untitled"
-  const description = fileData.description ?? "No description provided"
-  const { css, js } = externalResources
-  const baseDir = resolveToRoot(slug)
-  const iconPath = baseDir + "/static/icon.png"
-  const ogImagePath = baseDir + "/static/og-image.png"
-
-  return <head>
-    <title>{title}</title>
-    <meta charSet="utf-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1" />
-    <meta property="og:title" content={title} />
-    <meta property="og:description" content={title} />
-    <meta property="og:image" content={ogImagePath} />
-    <meta property="og:width" content="1200" />
-    <meta property="og:height" content="675" />
-    <link rel="icon" href={iconPath} />
-    <meta name="description" content={description} />
-    <meta name="generator" content="Quartz" />
-    <link rel="preconnect" href="https://fonts.googleapis.com" />
-    <link rel="preconnect" href="https://fonts.gstatic.com" />
-    {css.map(href => <link key={href} href={href} rel="stylesheet" type="text/css" spa-preserve />)}
-    {js.filter(resource => resource.loadTime === "beforeDOMReady").map(res => JSResourceToScriptElement(res, true))}
-  </head>
+interface Options {
+  prefetchContentIndex: boolean
 }
 
-export default (() => Head) satisfies QuartzComponentConstructor
+const defaultOptions: Options = {
+  prefetchContentIndex: true
+}
+
+export default ((opts?: Options) => {
+  function Head({ fileData, externalResources }: QuartzComponentProps) {
+    const slug = fileData.slug!
+    const title = fileData.frontmatter?.title ?? "Untitled"
+    const description = fileData.description ?? "No description provided"
+    const { css, js } = externalResources
+    const baseDir = resolveToRoot(slug)
+    const iconPath = baseDir + "/static/icon.png"
+    const ogImagePath = baseDir + "/static/og-image.png"
+
+    const prefetchContentIndex = opts?.prefetchContentIndex ?? defaultOptions.prefetchContentIndex
+    const contentIndexPath = baseDir + "/static/contentIndex.json"
+    const contentIndexScript = `const fetchData = fetch(\`${contentIndexPath}\`).then(data => data.json())`
+
+    return <head>
+      <title>{title}</title>
+      <meta charSet="utf-8" />
+      <meta name="viewport" content="width=device-width, initial-scale=1" />
+      <meta property="og:title" content={title} />
+      <meta property="og:description" content={title} />
+      <meta property="og:image" content={ogImagePath} />
+      <meta property="og:width" content="1200" />
+      <meta property="og:height" content="675" />
+      <link rel="icon" href={iconPath} />
+      <meta name="description" content={description} />
+      <meta name="generator" content="Quartz" />
+      <link rel="preconnect" href="https://fonts.googleapis.com" />
+      <link rel="preconnect" href="https://fonts.gstatic.com" />
+      {prefetchContentIndex && <script spa-preserve>{contentIndexScript}</script>}
+      {css.map(href => <link key={href} href={href} rel="stylesheet" type="text/css" spa-preserve />)}
+      {js.filter(resource => resource.loadTime === "beforeDOMReady").map(res => JSResourceToScriptElement(res, true))}
+    </head>
+  }
+
+  return Head
+}) satisfies QuartzComponentConstructor

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