[#814,tutorial,docs][xl]: add initial version of the second tutorial, rename basic-example to learn-example, clean up learn-example

examples/learn-example/.gitignore

@@ -0,0 +1,36 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# local env files
+.env*.local
+
+# vercel
+.vercel
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts

examples/learn-example/README.md

@@ -0,0 +1 @@
+PortalJS Learn Example - https://portaljs.org/docs

examples/learn-example/components/DRD.tsx

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+import { MDXRemote } from 'next-mdx-remote';
+import dynamic from 'next/dynamic';
+import { Mermaid } from '@flowershow/core';
+
+// Custom components/renderers to pass to MDX.
+// Since the MDX files aren't loaded by webpack, they have no knowledge of how
+// to handle import statements. Instead, you must include components in scope
+// here.
+const components = {
+  Table: dynamic(() => import('./Table')),
+  mermaid: Mermaid,
+  // Excel: dynamic(() => import('../components/Excel')),
+  // TODO: try and make these dynamic ...
+  Vega: dynamic(() => import('./Vega')),
+  VegaLite: dynamic(() => import('./VegaLite')),
+  LineChart: dynamic(() => import('./LineChart')),
+} as any;
+
+export default function DRD({ source }: { source: any }) {
+  return <MDXRemote {...source} components={components} />;
+}

examples/learn-example/components/DebouncedInput.tsx

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+import { useEffect, useState } from "react";
+
+const DebouncedInput = ({
+  value: initialValue,
+  onChange,
+  debounce = 500,
+  ...props
+}) => {
+  const [value, setValue] = useState(initialValue);
+
+  useEffect(() => {
+    setValue(initialValue);
+  }, [initialValue]);
+
+  useEffect(() => {
+    const timeout = setTimeout(() => {
+      onChange(value);
+    }, debounce);
+
+    return () => clearTimeout(timeout);
+  }, [value]);
+
+  return (
+    <input
+      {...props}
+      value={value}
+      onChange={(e) => setValue(e.target.value)}
+    />
+  );
+};
+
+export default DebouncedInput;

examples/learn-example/components/LineChart.tsx

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+import VegaLite from "./VegaLite";
+
+export default function LineChart({
+  data = [],
+  fullWidth = false,
+  title = "",
+  xAxis = "x",
+  yAxis = "y",
+}) {
+  var tmp = data;
+  if (Array.isArray(data)) {
+    tmp = data.map((r, i) => {
+      return { x: r[0], y: r[1] };
+    });
+  }
+  const vegaData = { table: tmp };
+  const spec = {
+    $schema: "https://vega.github.io/schema/vega-lite/v5.json",
+    title,
+    width: "container",
+    height: 300,
+    mark: {
+      type: "line",
+      color: "black",
+      strokeWidth: 1,
+      tooltip: true,
+    },
+    data: {
+      name: "table",
+    },
+    selection: {
+      grid: {
+        type: "interval",
+        bind: "scales",
+      },
+    },
+    encoding: {
+      x: {
+        field: xAxis,
+        timeUnit: "year",
+        type: "temporal",
+      },
+      y: {
+        field: yAxis,
+        type: "quantitative",
+      },
+    },
+  };
+  if (typeof data === 'string') {
+    spec.data = { "url": data } as any
+    return <VegaLite fullWidth={fullWidth} spec={spec} />;
+  }
+
+  return <VegaLite fullWidth={fullWidth} data={vegaData} spec={spec} />;
+}

examples/learn-example/components/Table.tsx

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+import {
+  createColumnHelper,
+  FilterFn,
+  flexRender,
+  getCoreRowModel,
+  getFilteredRowModel,
+  getPaginationRowModel,
+  getSortedRowModel,
+  useReactTable,
+} from "@tanstack/react-table";
+
+import {
+  ArrowDownIcon,
+  ArrowUpIcon,
+  ChevronDoubleLeftIcon,
+  ChevronDoubleRightIcon,
+  ChevronLeftIcon,
+  ChevronRightIcon,
+} from "@heroicons/react/24/solid";
+
+import React, { useEffect, useMemo, useState } from "react";
+
+import parseCsv from "../lib/parseCsv";
+import DebouncedInput from "./DebouncedInput";
+import loadData from "../lib/loadData";
+
+const Table = ({
+  data: ogData = [],
+  cols: ogCols = [],
+  csv = "",
+  url = "",
+  fullWidth = false,
+}) => {
+  if (csv) {
+    const out = parseCsv(csv);
+    ogData = out.rows;
+    ogCols = out.fields;
+  }
+
+  const [data, setData] = React.useState(ogData);
+  const [cols, setCols] = React.useState(ogCols);
+  const [error, setError] = React.useState(""); //  TODO: add error handling
+
+  const tableCols = useMemo(() => {
+    const columnHelper = createColumnHelper();
+    return cols.map((c) =>
+      columnHelper.accessor(c.key, {
+        header: () => c.name,
+        cell: (info) => info.getValue(),
+      })
+    );
+  }, [data, cols]);
+
+  const [globalFilter, setGlobalFilter] = useState("");
+
+  const table = useReactTable({
+    data,
+    columns: tableCols,
+    getCoreRowModel: getCoreRowModel(),
+    state: {
+      globalFilter,
+    },
+    globalFilterFn: globalFilterFn,
+    onGlobalFilterChange: setGlobalFilter,
+    getFilteredRowModel: getFilteredRowModel(),
+    getPaginationRowModel: getPaginationRowModel(),
+    getSortedRowModel: getSortedRowModel(),
+  });
+
+  useEffect(() => {
+    if (url) {
+      loadData(url).then((data) => {
+        const { rows, fields } = parseCsv(data);
+        setData(rows);
+        setCols(fields);
+      });
+    }
+  }, [url]);
+
+  return (
+    <div className={`${fullWidth ? "w-[90vw] ml-[calc(50%-45vw)]" : "w-full"}`}>
+      <DebouncedInput
+        value={globalFilter ?? ""}
+        onChange={(value) => setGlobalFilter(String(value))}
+        className="p-2 text-sm shadow border border-block"
+        placeholder="Search all columns..."
+      />
+      <table>
+        <thead>
+          {table.getHeaderGroups().map((hg) => (
+            <tr key={hg.id}>
+              {hg.headers.map((h) => (
+                <th key={h.id}>
+                  <div
+                    {...{
+                      className: h.column.getCanSort()
+                        ? "cursor-pointer select-none"
+                        : "",
+                      onClick: h.column.getToggleSortingHandler(),
+                    }}
+                  >
+                    {flexRender(h.column.columnDef.header, h.getContext())}
+                    {{
+                      asc: (
+                        <ArrowUpIcon className="inline-block ml-2 h-4 w-4" />
+                      ),
+                      desc: (
+                        <ArrowDownIcon className="inline-block ml-2 h-4 w-4" />
+                      ),
+                    }[h.column.getIsSorted() as string] ?? (
+                      <div className="inline-block ml-2 h-4 w-4" />
+                    )}
+                  </div>
+                </th>
+              ))}
+            </tr>
+          ))}
+        </thead>
+        <tbody>
+          {table.getRowModel().rows.map((r) => (
+            <tr key={r.id}>
+              {r.getVisibleCells().map((c) => (
+                <td key={c.id}>
+                  {flexRender(c.column.columnDef.cell, c.getContext())}
+                </td>
+              ))}
+            </tr>
+          ))}
+        </tbody>
+      </table>
+      <div className="flex gap-2 items-center justify-center">
+        <button
+          className={`w-6 h-6 ${
+            !table.getCanPreviousPage() ? "opacity-25" : "opacity-100"
+          }`}
+          onClick={() => table.setPageIndex(0)}
+          disabled={!table.getCanPreviousPage()}
+        >
+          <ChevronDoubleLeftIcon />
+        </button>
+        <button
+          className={`w-6 h-6 ${
+            !table.getCanPreviousPage() ? "opacity-25" : "opacity-100"
+          }`}
+          onClick={() => table.previousPage()}
+          disabled={!table.getCanPreviousPage()}
+        >
+          <ChevronLeftIcon />
+        </button>
+        <span className="flex items-center gap-1">
+          <div>Page</div>
+          <strong>
+            {table.getState().pagination.pageIndex + 1} of{" "}
+            {table.getPageCount()}
+          </strong>
+        </span>
+        <button
+          className={`w-6 h-6 ${
+            !table.getCanNextPage() ? "opacity-25" : "opacity-100"
+          }`}
+          onClick={() => table.nextPage()}
+          disabled={!table.getCanNextPage()}
+        >
+          <ChevronRightIcon />
+        </button>
+        <button
+          className={`w-6 h-6 ${
+            !table.getCanNextPage() ? "opacity-25" : "opacity-100"
+          }`}
+          onClick={() => table.setPageIndex(table.getPageCount() - 1)}
+          disabled={!table.getCanNextPage()}
+        >
+          <ChevronDoubleRightIcon />
+        </button>
+      </div>
+    </div>
+  );
+};
+
+const globalFilterFn: FilterFn<any> = (row, columnId, filterValue: string) => {
+  const search = filterValue.toLowerCase();
+
+  let value = row.getValue(columnId) as string;
+  if (typeof value === "number") value = String(value);
+
+  return value?.toLowerCase().includes(search);
+};
+
+export default Table;

examples/learn-example/components/Vega.tsx

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+//  Wrapper for the Vega component
+import { Vega as VegaOg } from "react-vega";
+
+export default function Vega(props) {
+  return <VegaOg {...props} />;
+}

examples/learn-example/components/VegaLite.tsx

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+//  Wrapper for the Vega Lite component
+import { VegaLite as VegaLiteOg } from "react-vega";
+import applyFullWidthDirective from "../lib/applyFullWidthDirective";
+
+export default function VegaLite(props) {
+  const Component = applyFullWidthDirective({ Component: VegaLiteOg });
+
+  return <Component {...props} />;
+}

examples/learn-example/content/index.md

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+# My Dataset
+
+Built with PortalJS 
+
+## Table 
+
+<Table url="data.csv" />

examples/learn-example/lib/applyFullWidthDirective.tsx

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+export default function applyFullWidthDirective({
+  Component,
+  defaultWFull = true,
+}) {
+  return (props) => {
+    const newProps = { ...props };
+
+    let newClassName = newProps.className || "";
+    if (newProps.fullWidth === true) {
+      newClassName += " w-[90vw] ml-[calc(50%-45vw)] max-w-none";
+    } else if (defaultWFull) {
+      //  So that charts and tables will have the
+      //  same width as the text content, but images
+      //  can have its width set using the width prop
+      newClassName += " w-full";
+    }
+    newProps.className = newClassName;
+
+    return <Component {...newProps} />;
+  };
+}

examples/learn-example/lib/loadData.tsx

@@ -0,0 +1,5 @@
+export default async function loadData(url: string) {
+  const response = await fetch(url)
+  const data = await response.text()
+  return data
+}

examples/learn-example/lib/markdown.js

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+import matter from "gray-matter";
+import mdxmermaid from "mdx-mermaid";
+import { h } from "hastscript";
+import remarkCallouts from "@flowershow/remark-callouts";
+import remarkEmbed from "@flowershow/remark-embed";
+import remarkGfm from "remark-gfm";
+import remarkMath from "remark-math";
+import remarkSmartypants from "remark-smartypants";
+import remarkToc from "remark-toc";
+import remarkWikiLink from "@flowershow/remark-wiki-link";
+import rehypeAutolinkHeadings from "rehype-autolink-headings";
+import rehypeKatex from "rehype-katex";
+import rehypeSlug from "rehype-slug";
+import rehypePrismPlus from "rehype-prism-plus";
+
+import { serialize } from "next-mdx-remote/serialize";
+
+/**
+ * Parse a markdown or MDX file to an MDX source form + front matter data
+ *
+ * @source: the contents of a markdown or mdx file
+ * @format: used to indicate to next-mdx-remote which format to use (md or mdx)
+ * @returns: { mdxSource: mdxSource, frontMatter: ...}
+ */
+const parse = async function (source, format) {
+  const { content, data, excerpt } = matter(source, {
+    excerpt: (file, options) => {
+      // Generate an excerpt for the file
+      file.excerpt = file.content.split("\n\n")[0];
+    },
+  });
+
+  const mdxSource = await serialize(
+    { value: content, path: format },
+    {
+      // Optionally pass remark/rehype plugins
+      mdxOptions: {
+        remarkPlugins: [
+          remarkEmbed,
+          remarkGfm,
+          [remarkSmartypants, { quotes: false, dashes: "oldschool" }],
+          remarkMath,
+          remarkCallouts,
+          remarkWikiLink,
+          [
+            remarkToc,
+            {
+              heading: "Table of contents",
+              tight: true,
+            },
+          ],
+          [mdxmermaid, {}],
+        ],
+        rehypePlugins: [
+          rehypeSlug,
+          [
+            rehypeAutolinkHeadings,
+            {
+              properties: { className: 'heading-link' },
+              test(element) {
+                return (
+                  ["h2", "h3", "h4", "h5", "h6"].includes(element.tagName) &&
+                  element.properties?.id !== "table-of-contents" &&
+                  element.properties?.className !== "blockquote-heading"
+                );
+              },
+              content() {
+                return [
+                  h(
+                    "svg",
+                    {
+                      xmlns: "http:www.w3.org/2000/svg",
+                      fill: "#ab2b65",
+                      viewBox: "0 0 20 20",
+                      className: "w-5 h-5",
+                    },
+                    [
+                      h("path", {
+                        fillRule: "evenodd",
+                        clipRule: "evenodd",
+                        d: "M9.493 2.853a.75.75 0 00-1.486-.205L7.545 6H4.198a.75.75 0 000 1.5h3.14l-.69 5H3.302a.75.75 0 000 1.5h3.14l-.435 3.148a.75.75 0 001.486.205L7.955 14h2.986l-.434 3.148a.75.75 0 001.486.205L12.456 14h3.346a.75.75 0 000-1.5h-3.14l.69-5h3.346a.75.75 0 000-1.5h-3.14l.435-3.147a.75.75 0 00-1.486-.205L12.045 6H9.059l.434-3.147zM8.852 7.5l-.69 5h2.986l.69-5H8.852z",
+                      }),
+                    ]
+                  ),
+                ];
+              },
+            },
+          ],
+          [rehypeKatex, { output: "mathml" }],
+          [rehypePrismPlus, { ignoreMissing: true }],
+        ],
+        format,
+      },
+      scope: data,
+    }
+  );
+
+  return {
+    mdxSource: mdxSource,
+    frontMatter: data,
+    excerpt,
+  };
+};
+
+export default parse;

examples/learn-example/lib/parseCsv.ts

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+import papa from "papaparse";
+
+const parseCsv = (csv) => {
+  csv = csv.trim();
+  const rawdata = papa.parse(csv, { header: true });
+  const cols = rawdata.meta.fields.map((r, i) => {
+    return { key: r, name: r };
+  });
+
+  return {
+    rows: rawdata.data,
+    fields: cols,
+  };
+};
+
+export default parseCsv;

examples/learn-example/package.json

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+{
+  "name": "basic-example",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "lint": "next lint"
+  },
+  "dependencies": {
+    "@flowershow/core": "^0.4.10",
+    "@flowershow/remark-callouts": "^1.0.0",
+    "@flowershow/remark-embed": "^1.0.0",
+    "@flowershow/remark-wiki-link": "^1.1.2",
+    "@heroicons/react": "^2.0.17",
+    "@opentelemetry/api": "^1.4.0",
+    "@tanstack/react-table": "^8.8.5",
+    "@types/node": "18.16.0",
+    "@types/react": "18.2.0",
+    "@types/react-dom": "18.2.0",
+    "eslint": "8.39.0",
+    "eslint-config-next": "13.3.1",
+    "gray-matter": "^4.0.3",
+    "hastscript": "^7.2.0",
+    "mdx-mermaid": "2.0.0-rc7",
+    "next": "13.2.1",
+    "next-mdx-remote": "^4.4.1",
+    "papaparse": "^5.4.1",
+    "react": "18.2.0",
+    "react-dom": "18.2.0",
+    "react-vega": "^7.6.0",
+    "rehype-autolink-headings": "^6.1.1",
+    "rehype-katex": "^6.0.3",
+    "rehype-prism-plus": "^1.5.1",
+    "rehype-slug": "^5.1.0",
+    "remark-gfm": "^3.0.1",
+    "remark-math": "^5.1.1",
+    "remark-smartypants": "^2.0.0",
+    "remark-toc": "^8.0.1",
+    "typescript": "5.0.4"
+  },
+  "devDependencies": {
+    "@tailwindcss/typography": "^0.5.9",
+    "autoprefixer": "^10.4.14",
+    "postcss": "^8.4.23",
+    "tailwindcss": "^3.3.1"
+  }
+}

examples/learn-example/pages/[[...path]].tsx

@@ -0,0 +1,46 @@
+import { promises as fs } from 'fs';
+import path from 'path';
+import parse from '../lib/markdown';
+import DRD from '../components/DRD';
+
+export const getServerSideProps = async (context) => {
+  let pathToFile = 'index.md';
+  if (context.params.path) {
+    pathToFile = context.params.path.join('/') + '/index.md';
+  }
+
+  const indexFile = path.join(process.cwd(), '/content/' + pathToFile);
+  const readme = await fs.readFile(indexFile, 'utf8');
+  let { mdxSource, frontMatter } = await parse(readme, '.mdx');
+  return {
+    props: {
+      mdxSource,
+      frontMatter,
+    },
+  };
+};
+
+export default function DatasetPage({ mdxSource, frontMatter }) {
+  return (
+    <div className="prose mx-auto">
+      <header>
+        <div className="mb-6">
+          <>
+            <h1>{frontMatter.title}</h1>
+            {frontMatter.author && (
+              <div className="-mt-6">
+                <p className="opacity-60 pl-1">{frontMatter.author}</p>
+              </div>
+            )}
+            {frontMatter.description && (
+              <p className="description">{frontMatter.description}</p>
+            )}
+          </>
+        </div>
+      </header>
+      <main>
+        <DRD source={mdxSource} />
+      </main>
+    </div>
+  );
+}

examples/learn-example/pages/_app.tsx

@@ -0,0 +1,6 @@
+import '../styles/globals.css'
+import type { AppProps } from 'next/app'
+
+export default function App({ Component, pageProps }: AppProps) {
+  return <Component {...pageProps} />
+}

examples/learn-example/pages/_document.tsx

@@ -0,0 +1,19 @@
+import Document, { Html, Main, Head, NextScript } from 'next/document';
+
+class MyDocument extends Document {
+  render() {
+    return (
+      <Html>
+        <Head>
+          <link rel="icon" href="/favicon.png" />
+        </Head>
+        <body>
+          <Main />
+          <NextScript />
+        </body>
+      </Html>
+    );
+  }
+}
+
+export default MyDocument;

examples/learn-example/postcss.config.js

@@ -0,0 +1,6 @@
+module.exports = {
+  plugins: {
+    tailwindcss: {},
+    autoprefixer: {},
+  },
+}

examples/learn-example/public/data.csv

@@ -0,0 +1,6 @@
+Year,Rating
+2008,86
+2009,96
+2010,100
+2011,100
+2012,97

examples/learn-example/styles/globals.css

@@ -0,0 +1,105 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+@import "@flowershow/remark-callouts/styles.css";
+
+.w-5 {
+  width: 1.25rem
+}
+
+.h-5 {
+  height: 1.25rem
+}
+
+/* mathjax */
+.math-inline > mjx-container > svg {
+  display: inline;
+  align-items: center;
+}
+
+/* smooth scrolling in modern browsers */
+html {
+  scroll-behavior: smooth !important;
+}
+
+/* tooltip fade-out clip */
+.tooltip-body::after {
+  content: "";
+  position: absolute;
+  right: 0;
+  top: 3.6rem; /* multiple of $line-height used on the tooltip body (defined in tooltipBodyStyle) */
+  height: 1.2rem; /* ($top + $height)/$line-height is the number of lines we want to clip tooltip text at*/
+  width: 10rem;
+  background: linear-gradient(
+    to right,
+    rgba(255, 255, 255, 0),
+    rgba(255, 255, 255, 1) 100%
+  );
+}
+
+:is(h2, h3, h4, h5, h6):not(.blogitem-title) {
+  margin-left: -2rem !important;
+  padding-left: 2rem !important;
+  scroll-margin-top: 4.5rem;
+  position: relative;
+}
+
+.heading-link {
+  padding: 1px;
+  position: absolute;
+  left: 0;
+  top: 50%;
+  transform: translateY(-50%);
+  margin: auto 0;
+  border-radius: 5px;
+  background: #1e293b;
+  opacity: 0;
+  transition: opacity 0.2s;
+}
+
+.light .heading-link {
+  /* border: 1px solid #ab2b65; */
+  /* background: none; */
+  background: #e2e8f0;
+}
+
+:is(h2, h3, h4, h5, h6):not(.blogitem-title):hover .heading-link {
+  opacity: 100;
+}
+
+.heading-link svg {
+  transform: scale(0.75);
+}
+
+@media screen and (max-width: 640px) {
+  .heading-link {
+    visibility: hidden;
+  }
+}
+
+html,
+body {
+  padding: 0;
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Oxygen,
+    Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, sans-serif;
+}
+
+a {
+  color: inherit;
+  text-decoration: none;
+}
+
+* {
+  box-sizing: border-box;
+}
+
+@media (prefers-color-scheme: dark) {
+  html {
+    color-scheme: dark;
+  }
+  body {
+    color: white;
+    background: black;
+  }
+}

examples/learn-example/tailwind.config.js

@@ -0,0 +1,12 @@
+/** @type {import('tailwindcss').Config} */
+module.exports = {
+  content: [
+    './app/**/*.{js,ts,jsx,tsx,mdx}',
+    './pages/**/*.{js,ts,jsx,tsx,mdx}',
+    './components/**/*.{js,ts,jsx,tsx,mdx}',
+  ],
+  theme: {
+    extend: {},
+  },
+  plugins: [require('@tailwindcss/typography')],
+};

examples/learn-example/tsconfig.json

@@ -0,0 +1,20 @@
+{
+  "compilerOptions": {
+    "target": "es5",
+    "lib": ["dom", "dom.iterable", "esnext"],
+    "allowJs": true,
+    "skipLibCheck": true,
+    "strict": false,
+    "forceConsistentCasingInFileNames": true,
+    "noEmit": true,
+    "esModuleInterop": true,
+    "module": "esnext",
+    "moduleResolution": "node",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "jsx": "preserve",
+    "incremental": true
+  },
+  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", "middleware.ts"],
+  "exclude": ["node_modules"]
+}