copelandhouse2 · copelandhouse2 · Sep 6, 2017 · Sep 9, 2017 · reneemeyer · Sep 11, 2017
diff --git a/09week/hacker-news/.gitignore b/09week/hacker-news/.gitignore
@@ -0,0 +1,21 @@
+# See https://help.github.com/ignore-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
diff --git a/09week/hacker-news/README.md b/09week/hacker-news/README.md
diff --git a/09week/hacker-news/package.json b/09week/hacker-news/package.json
@@ -0,0 +1,16 @@
+{
+  "name": "hacker-news",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "react": "^15.6.1",
+    "react-dom": "^15.6.1",
+    "react-scripts": "1.0.13"
+  },
+  "scripts": {
+    "start": "react-scripts start",
+    "build": "react-scripts build",
+    "test": "react-scripts test --env=jsdom",
+    "eject": "react-scripts eject"
+  }
+}
diff --git a/09week/hacker-news/public/index.html b/09week/hacker-news/public/index.html
@@ -0,0 +1,35 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+    <meta name="theme-color" content="#000000">
+
+    <!--
+      Notice the use of %PUBLIC_URL% in the tags above.
+      It will be replaced with the URL of the `public` folder during the build.
+      Only files inside the `public` folder can be referenced from the HTML.
+
+      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
+      work correctly both with client-side routing and a non-root public URL.
+      Learn how to configure a non-root public URL by running `npm run build`.
+    -->
+    <title>React App</title>
+  </head>
+  <body>
+    <noscript>
+      You need to enable JavaScript to run this app.
+    </noscript>
+    <div id="root"></div>
+    <!--
+      This HTML file is a template.
+      If you open it directly in the browser, you will see an empty page.
+
+      You can add webfonts, meta tags, or analytics to this file.
+      The build step will place the bundled scripts into the <body> tag.
+
+      To begin the development, run `npm start` or `yarn start`.
+      To create a production bundle, use `npm run build` or `yarn build`.
+    -->
+  </body>
+</html>
diff --git a/09week/hacker-news/src/App.css b/09week/hacker-news/src/App.css
@@ -0,0 +1,50 @@
+.App {
+  text-align: center;
+}
+
+.App-logo {
+  animation: App-logo-spin infinite 20s linear;
+  height: 80px;
+}
+
+.App-header {
+  background-color: #222;
+  height: 150px;
+  padding: 20px;
+  color: white;
+}
+
+.App-intro {
+  font-size: large;
+}
+
+@keyframes App-logo-spin {
+  from { transform: rotate(0deg); }
+  to { transform: rotate(360deg); }
+}
+
+/*const colors = ['red', 'green', 'blue', 'yellow', 'purple', 'orange']*/
+
+.red {
+  color: red;
+}
+
+.green {
+  color: green;
+}
+
+.blue {
+  color: blue;
+}
+
+.yellow {
+  color: yellow;
+}
+
+.purple {
+  color: purple;
+}
+
+.orange {
+  color: orange;
+}
diff --git a/09week/hacker-news/src/App.js b/09week/hacker-news/src/App.js
@@ -0,0 +1,53 @@
+/*************** WHITE BOARD NOTES ********************
+// This app.js will be the driver program.  It will  call
+// List.
+*******************************************************/
+
+import React, { Component } from 'react';
+import './App.css';
+import Header from './Header';
+import List from './List';
+
+class App extends Component {
+
+  state = {
+    stories: [],
+    color : ''
+  };
+
+  componentDidMount(){
+    fetch('https://hacker-news.firebaseio.com/v0/topstories.json?print=pretty').then((res) => {
+      res.json().then((storyIds) => {
+        storyIds.slice(0, 10).forEach((storyId) => {
+          fetch(`https://hacker-news.firebaseio.com/v0/item/${storyId}.json?print=pretty`).then((res) => {
+            res.json().then((story) => {
+              console.log('in story', story);
+              this.setState({ stories: [...this.state.stories, story] })
+            });
+          });
+        });
+      });
+    });
+  }
+
+  handleClick = () => {
+    console.log('in handleClick');
+    const colors = ['red', 'green', 'blue', 'yellow', 'purple', 'orange'];
+    const ID = Math.floor(Math.random() * colors.length);
+    this.setState({ color: colors[ID] });
+
+  }
+
+  render() {
+    return (
+      <List
+        stories = {this.state.stories}
+        handleClick = {this.handleClick}
+        color = {this.state['color']}
+      />
+    );
+  }
+}
+
+export default App;
+// {this.state.stories.title}
diff --git a/09week/hacker-news/src/App.test.js b/09week/hacker-news/src/App.test.js
@@ -0,0 +1,8 @@
+import React from 'react';
+import ReactDOM from 'react-dom';
+import App from './App';
+
+it('renders without crashing', () => {
+  const div = document.createElement('div');
+  ReactDOM.render(<App />, div);
+});
diff --git a/09week/hacker-news/src/Entry.js b/09week/hacker-news/src/Entry.js
@@ -0,0 +1,25 @@
+/*************** WHITE BOARD NOTES ********************
+// This will be an article entry.  it will control the
+// formatting of the entry.
+*******************************************************/
+import React, { Component } from 'react';
+import './App.css';
+// import './style.css';
+
+
+class Entry extends Component {
+  render() {
+    return (
+      <h3>
+        <a href={this.props.story['url']} target="_blank" className={this.props.color}
+>
+          {this.props.story['title']}
+        </a>
+      </h3>
+    );
+  }
+}
+
+export default Entry;
+// onClick = {this.props.handleClick}
+// className={this.props.color}
diff --git a/09week/hacker-news/src/Header.js b/09week/hacker-news/src/Header.js
@@ -0,0 +1,16 @@
+/*************** WHITE BOARD NOTES ********************
+// This will be header.  it will call class Entry
+// for each entry.  It will also format the List.
+*******************************************************/
+import React, { Component } from 'react';
+
+class Header extends Component {
+  render() {
+    return (
+      <div className="List">
+      </div>
+    );
+  }
+}
+
+export default Header;
diff --git a/09week/hacker-news/src/List.js b/09week/hacker-news/src/List.js
@@ -0,0 +1,32 @@
+/*************** WHITE BOARD NOTES ********************
+// This will be an articles List.  it will call class Entry
+// for each entry.  It will also format the List.
+*******************************************************/
+import React, { Component } from 'react';
+import Entry from './Entry';
+
+class List extends Component {
+  render() {
+    return (
+      <div>
+      <button
+        type="button"
+        onClick = {this.props.handleClick}
+      >
+        Change Colors!
+      </button>
+      {
+        this.props.stories.map((story, idx) =>
+          <Entry
+            story = {story}
+            key = {idx}
+            color = {this.props.color}
+          />
+        )
+      }
+      </div>
+    );
+  }
+}
+
+export default List;
diff --git a/09week/hacker-news/src/index.css b/09week/hacker-news/src/index.css
@@ -0,0 +1,5 @@
+body {
+  margin: 0;
+  padding: 0;
+  font-family: sans-serif;
+}
diff --git a/09week/hacker-news/src/index.js b/09week/hacker-news/src/index.js
@@ -0,0 +1,8 @@
+import React from 'react';
+import ReactDOM from 'react-dom';
+import './index.css';
+import App from './App';
+import registerServiceWorker from './registerServiceWorker';
+
+ReactDOM.render(<App />, document.getElementById('root'));
+registerServiceWorker();
diff --git a/09week/hacker-news/src/logo.svg b/09week/hacker-news/src/logo.svg
diff --git a/09week/hacker-news/src/registerServiceWorker.js b/09week/hacker-news/src/registerServiceWorker.js
@@ -0,0 +1,108 @@
+// In production, we register a service worker to serve assets from local cache.
+
+// This lets the app load faster on subsequent visits in production, and gives
+// it offline capabilities. However, it also means that developers (and users)
+// will only see deployed updates on the "N+1" visit to a page, since previously
+// cached resources are updated in the background.
+
+// To learn more about the benefits of this model, read https://goo.gl/KwvDNy.
+// This link also includes instructions on opting out of this behavior.
+
+const isLocalhost = Boolean(
+  window.location.hostname === 'localhost' ||
+    // [::1] is the IPv6 localhost address.
+    window.location.hostname === '[::1]' ||
+    // 127.0.0.1/8 is considered localhost for IPv4.
+    window.location.hostname.match(
+      /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
+    )
+);
+
+export default function register() {
+  if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
+    // The URL constructor is available in all browsers that support SW.
+    const publicUrl = new URL(process.env.PUBLIC_URL, window.location);
+    if (publicUrl.origin !== window.location.origin) {
+      // Our service worker won't work if PUBLIC_URL is on a different origin
+      // from what our page is served on. This might happen if a CDN is used to
+      // serve assets; see https://github.com/facebookincubator/create-react-app/issues/2374
+      return;
+    }
+
+    window.addEventListener('load', () => {
+      const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
+
+      if (!isLocalhost) {
+        // Is not local host. Just register service worker
+        registerValidSW(swUrl);
+      } else {
+        // This is running on localhost. Lets check if a service worker still exists or not.
+        checkValidServiceWorker(swUrl);
+      }
+    });
+  }
+}
+
+function registerValidSW(swUrl) {
+  navigator.serviceWorker
+    .register(swUrl)
+    .then(registration => {
+      registration.onupdatefound = () => {
+        const installingWorker = registration.installing;
+        installingWorker.onstatechange = () => {
+          if (installingWorker.state === 'installed') {
+            if (navigator.serviceWorker.controller) {
+              // At this point, the old content will have been purged and
+              // the fresh content will have been added to the cache.
+              // It's the perfect time to display a "New content is
+              // available; please refresh." message in your web app.
+              console.log('New content is available; please refresh.');
+            } else {
+              // At this point, everything has been precached.
+              // It's the perfect time to display a
+              // "Content is cached for offline use." message.
+              console.log('Content is cached for offline use.');
+            }
+          }
+        };
+      };
+    })
+    .catch(error => {
+      console.error('Error during service worker registration:', error);
+    });
+}
+
+function checkValidServiceWorker(swUrl) {
+  // Check if the service worker can be found. If it can't reload the page.
+  fetch(swUrl)
+    .then(response => {
+      // Ensure service worker exists, and that we really are getting a JS file.
+      if (
+        response.status === 404 ||
+        response.headers.get('content-type').indexOf('javascript') === -1
+      ) {
+        // No service worker found. Probably a different app. Reload the page.
+        navigator.serviceWorker.ready.then(registration => {
+          registration.unregister().then(() => {
+            window.location.reload();
+          });
+        });
+      } else {
+        // Service worker found. Proceed as normal.
+        registerValidSW(swUrl);
+      }
+    })
+    .catch(() => {
+      console.log(
+        'No internet connection found. App is running in offline mode.'
+      );
+    });
+}
+
+export function unregister() {
+  if ('serviceWorker' in navigator) {
+    navigator.serviceWorker.ready.then(registration => {
+      registration.unregister();
+    });
+  }
+}