Jacky Zhao
2024-01-24 fa6c02d3213dfd4e6da8e78bd3a2e7004555fd01
quartz/components/renderPage.tsx
@@ -3,9 +3,10 @@
import HeaderConstructor from "./Header"
import BodyConstructor from "./Body"
import { JSResourceToScriptElement, StaticResources } from "../util/resources"
import { FullSlug, RelativeURL, joinSegments } from "../util/path"
import { FullSlug, RelativeURL, joinSegments, normalizeHastElement } from "../util/path"
import { visit } from "unist-util-visit"
import { Root, Element } from "hast"
import { Root, Element, ElementContent } from "hast"
import { QuartzPluginData } from "../plugins/vfile"
interface RenderComponents {
  head: QuartzComponent
@@ -22,7 +23,7 @@
  staticResources: StaticResources,
): StaticResources {
  const contentIndexPath = joinSegments(baseDir, "static/contentIndex.json")
  const contentIndexScript = `const fetchData = fetch(\`${contentIndexPath}\`).then(data => data.json())`
  const contentIndexScript = `const fetchData = fetch("${contentIndexPath}").then(data => data.json())`
  return {
    css: [joinSegments(baseDir, "index.css"), ...staticResources.css],
@@ -49,6 +50,18 @@
  }
}
let pageIndex: Map<FullSlug, QuartzPluginData> | undefined = undefined
function getOrComputeFileIndex(allFiles: QuartzPluginData[]): Map<FullSlug, QuartzPluginData> {
  if (!pageIndex) {
    pageIndex = new Map()
    for (const file of allFiles) {
      pageIndex.set(file.slug!, file)
    }
  }
  return pageIndex
}
export function renderPage(
  slug: FullSlug,
  componentData: QuartzComponentProps,
@@ -61,22 +74,85 @@
      const classNames = (node.properties?.className ?? []) as string[]
      if (classNames.includes("transclude")) {
        const inner = node.children[0] as Element
        const blockSlug = inner.properties?.["data-slug"] as FullSlug
        const blockRef = node.properties!.dataBlock as string
        const transcludeTarget = inner.properties["data-slug"] as FullSlug
        const page = getOrComputeFileIndex(componentData.allFiles).get(transcludeTarget)
        if (!page) {
          return
        }
        // TODO: avoid this expensive find operation and construct an index ahead of time
        let blockNode = componentData.allFiles.find((f) => f.slug === blockSlug)?.blocks?.[blockRef]
        if (blockNode) {
          if (blockNode.tagName === "li") {
            blockNode = {
              type: "element",
              tagName: "ul",
              children: [blockNode],
        let blockRef = node.properties.dataBlock as string | undefined
        if (blockRef?.startsWith("#^")) {
          // block transclude
          blockRef = blockRef.slice("#^".length)
          let blockNode = page.blocks?.[blockRef]
          if (blockNode) {
            if (blockNode.tagName === "li") {
              blockNode = {
                type: "element",
                tagName: "ul",
                properties: {},
                children: [blockNode],
              }
            }
            node.children = [
              normalizeHastElement(blockNode, slug, transcludeTarget),
              {
                type: "element",
                tagName: "a",
                properties: { href: inner.properties?.href, class: ["internal"] },
                children: [{ type: "text", value: `Link to original` }],
              },
            ]
          }
        } else if (blockRef?.startsWith("#") && page.htmlAst) {
          // header transclude
          blockRef = blockRef.slice(1)
          let startIdx = undefined
          let endIdx = undefined
          for (const [i, el] of page.htmlAst.children.entries()) {
            if (el.type === "element" && el.tagName.match(/h[1-6]/)) {
              if (endIdx) {
                break
              }
              if (startIdx !== undefined) {
                endIdx = i
              } else if (el.properties?.id === blockRef) {
                startIdx = i
              }
            }
          }
          if (startIdx === undefined) {
            return
          }
          node.children = [
            blockNode,
            ...(page.htmlAst.children.slice(startIdx, endIdx) as ElementContent[]).map((child) =>
              normalizeHastElement(child as Element, slug, transcludeTarget),
            ),
            {
              type: "element",
              tagName: "a",
              properties: { href: inner.properties?.href, class: ["internal"] },
              children: [{ type: "text", value: `Link to original` }],
            },
          ]
        } else if (page.htmlAst) {
          // page transclude
          node.children = [
            {
              type: "element",
              tagName: "h1",
              properties: {},
              children: [
                { type: "text", value: page.frontmatter?.title ?? `Transclude of ${page.slug}` },
              ],
            },
            ...(page.htmlAst.children as ElementContent[]).map((child) =>
              normalizeHastElement(child as Element, slug, transcludeTarget),
            ),
            {
              type: "element",
              tagName: "a",