[1.0] Add Hacker News data source plugin as well as a HN clone site

.gitignore

@@ -39,3 +39,4 @@ test/**/public
 public/
 node_modules/
 .cache/
+.netlify

examples/hn/.babelrc

@@ -0,0 +1,4 @@
+{
+  "presets": ['react', 'es2015', 'stage-1'],
+  "plugins": ['add-module-exports']
+}

examples/hn/.gitignore

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+public
+.intermediate-representation
+node_modules

examples/hn/README.md

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+# Gatsbygram
+
+https://gatsbygram.gatsbyjs.org/
+
+Built with Gatsby 1.0 (Alpha 11) as a demo of Gatsby's new built-in
+image processing capabilities.

examples/hn/gatsby-config.js

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+module.exports = {
+  siteMetadata: {
+    title: `Gatsby Hacker News`,
+  },
+  plugins: [
+    /*
+     * Gatsby's data processing layer begins with “source”
+     * plugins.  You can source data nodes from anywhere but
+     * most sites, like Gatsbygram, will include data from
+     * the filesystem so we start here with
+     * “gatsby-source-filesystem”.
+     *
+     * A site can have as many instances of
+     * gatsby-source-filesystem as you need.  Each plugin
+     * instance is configured with a root path where it then
+     * recursively reads in files and adds them to the data
+     * tree.
+     */
+    `gatsby-source-hacker-news`,
+    {
+      resolve: `gatsby-plugin-manifest`,
+      options: {
+        name: `Gatsby Hacker News`,
+        short_name: `Gatsby Hacker News`,
+        start_url: `/`,
+        background_color: `#f7f7f7`,
+        theme_color: `#191919`,
+        display: `minimal-ui`,
+      },
+    },
+    // This plugin generates a service worker and AppShell
+    // html file so the site works offline and is otherwise
+    // resistant to bad networks. Works with almost any
+    // site!
+    `gatsby-plugin-offline`,
+    // This plugin sets up Google Analytics for you.
+    {
+      resolve: `gatsby-plugin-google-analytics`,
+      options: {
+        // trackingId: `UA-91652198-1`,
+      },
+    },
+  ],
+}

examples/hn/gatsby-node.js

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+const _ = require("lodash")
+const Promise = require("bluebird")
+const path = require("path")
+const slash = require("slash")
+
+// Implement the Gatsby API “createPages”. This is
+// called after the Gatsby bootstrap is finished so you have
+// access to any information necessary to programatically
+// create pages.
+exports.createPages = ({ graphql, boundActionCreators }) => {
+  const { upsertPage } = boundActionCreators
+  return new Promise((resolve, reject) => {
+    // The “graphql” function allows us to run arbitrary
+    // queries against local Hacker News graphql schema. Think of
+    // it like the site has a built-in database constructed
+    // from the fetched data that you can run queries against.
+
+    // HnStory is a data node type created from the HN API “allHnStory” is a
+    // "connection" (a GraphQL convention for accessing a list of nodes) gives
+    // us an easy way to query all HnStory nodes.
+    graphql(
+      `
+      {
+        allHnStory(limit: 1000) {
+          edges {
+            node {
+              id
+            }
+          }
+        }
+      }
+    `
+    ).then(result => {
+      if (result.errors) {
+        console.log(result.errors)
+        reject(result.errors)
+      }
+
+      // Create HN story pages.
+      const pageTemplate = path.resolve(`./src/templates/story.js`)
+      // We want to create a detailed page for each
+      // story page. We'll just use the HN story ID for the slug.
+      _.each(result.data.allHnStory.edges, edge => {
+        // Gatsby uses Redux to manage its internal state.
+        // Plugins and sites can use functions like "upsertPage"
+        // to interact with Gatsby.
+        upsertPage({
+          // Each page is required to have a `path` as well
+          // as a template component. The `context` is
+          // optional but is often necessary so the template
+          // can query data specific to each page.
+          path: `/item/${edge.node.id}/`,
+          component: slash(pageTemplate),
+          context: {
+            id: edge.node.id,
+          },
+        })
+      })
+
+      resolve()
+    })
+  })
+}

examples/hn/package.json

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+{
+  "name": "gatsby-example-image-gallery",
+  "private": true,
+  "description": "Gatsby example site: image gallery",
+  "version": "1.0.0",
+  "author": "Kyle Mathews <[email protected]>",
+  "dependencies": {
+    "flat": "^2.0.1",
+    "gatsby": "1.0.0-alpha12-alpha.8370739a",
+    "gatsby-link": "1.0.0-alpha12-alpha.8370739a",
+    "gatsby-plugin-google-analytics": "1.0.0-alpha12-alpha.8370739a",
+    "gatsby-plugin-manifest": "1.0.0-alpha12-alpha.8370739a",
+    "gatsby-plugin-offline": "1.0.0-alpha12-alpha.8370739a",
+    "gatsby-source-hacker-news": "1.0.0-alpha12-alpha.8370739a",
+    "lodash": "^4.16.4",
+    "slash": "^1.0.0"
+  },
+  "keywords": [
+    "gatsby"
+  ],
+  "license": "MIT",
+  "main": "n/a",
+  "scripts": {
+    "develop": "gatsby develop",
+    "build": "gatsby build"
+  }
+}

examples/hn/src/components/modal.js

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+import React from "react"
+import Modal from "react-modal"
+import browserHistory from "react-router/lib/browserHistory"
+import CaretRight from "react-icons/lib/fa/caret-right"
+import CaretLeft from "react-icons/lib/fa/caret-left"
+import Close from "react-icons/lib/md/close"
+import findIndex from "lodash/findIndex"
+import mousetrap from "mousetrap"
+
+import { rhythm, scale } from "../utils/typography"
+
+class GatsbyGramModal extends React.Component {
+  componentDidMount() {
+    mousetrap.bind("left", () => this.previous())
+    mousetrap.bind("right", () => this.next())
+    mousetrap.bind("spacebar", () => this.next())
+  }
+
+  componentWillUnmount() {
+    mousetrap.unbind("left")
+    mousetrap.unbind("right")
+    mousetrap.unbind("spacebar")
+  }
+
+  findCurrentIndex() {
+    let index
+    index = findIndex(this.props.edges, edge => {
+      return edge.node.id === this.props.location.pathname.split(`/`)[1]
+    })
+
+    return index
+  }
+
+  next(e) {
+    if (e) {
+      e.stopPropagation()
+    }
+    const currentIndex = this.findCurrentIndex()
+    if (currentIndex || currentIndex === 0) {
+      const edges = this.props.edges
+      let nextPost
+      // Wrap around if at end.
+      if (currentIndex + 1 === edges.length) {
+        nextPost = edges[0]
+      } else {
+        nextPost = edges[currentIndex + 1]
+      }
+      browserHistory.push(`/${nextPost.node.id}/`)
+    }
+  }
+
+  previous(e) {
+    if (e) {
+      e.stopPropagation()
+    }
+    const currentIndex = this.findCurrentIndex()
+    if (currentIndex || currentIndex === 0) {
+      const edges = this.props.edges
+      let previousPost
+      // Wrap around if at start.
+      if (currentIndex === 0) {
+        previousPost = edges.slice(-1)[0]
+      } else {
+        previousPost = edges[currentIndex - 1]
+      }
+      browserHistory.push(`/${previousPost.node.id}/`)
+    }
+  }
+
+  render() {
+    return (
+      <Modal
+        isOpen={this.props.isOpen}
+        onRequestClose={() => browserHistory.push(`/`)}
+        style={{
+          overlay: {
+            position: "fixed",
+            top: 0,
+            left: 0,
+            right: 0,
+            bottom: 0,
+            backgroundColor: "rgba(0, 0, 0, 0.75)",
+          },
+          content: {
+            position: "absolute",
+            border: `none`,
+            background: `none`,
+            padding: 0,
+            top: 0,
+            bottom: 0,
+            right: 0,
+            left: 0,
+            overflow: "auto",
+            WebkitOverflowScrolling: "touch",
+          },
+        }}
+        contentLabel="Modal"
+      >
+        <div
+          onClick={() => browserHistory.push(`/`)}
+          css={{
+            display: `flex`,
+            position: `relative`,
+            height: `100vh`,
+          }}
+        >
+          <div
+            css={{
+              display: `flex`,
+              alignItems: `center`,
+              justifyItems: `center`,
+              maxWidth: rhythm(40.25), // Gets it right around Instagram's maxWidth.
+              margin: `auto`,
+              width: `100%`,
+            }}
+          >
+            <CaretLeft
+              css={{
+                cursor: `pointer`,
+                fontSize: `50px`,
+                color: `rgba(255,255,255,0.7)`,
+                userSelect: `none`,
+              }}
+              onClick={e => this.previous(e)}
+            />
+            {this.props.children}
+            <CaretRight
+              css={{
+                cursor: `pointer`,
+                fontSize: `50px`,
+                color: `rgba(255,255,255,0.7)`,
+                userSelect: `none`,
+              }}
+              onClick={e => this.next(e)}
+            />
+          </div>
+          <Close
+            onClick={() => browserHistory.push(`/`)}
+            css={{
+              cursor: `pointer`,
+              color: `rgba(255,255,255,0.8)`,
+              fontSize: `30px`,
+              position: `absolute`,
+              top: rhythm(1 / 4),
+              right: rhythm(1 / 4),
+            }}
+          />
+        </div>
+      </Modal>
+    )
+  }
+}
+
+export default GatsbyGramModal