├── public
├── robots.txt
├── favicon.ico
├── logo192.png
├── logo512.png
├── manifest.json
└── index.html
├── scroll-arrow.gif
├── src
├── setupTests.js
├── App.js
├── App.test.js
├── index.css
├── App.css
├── index.js
├── components
│ └── ScrollTopArrow.js
├── logo.svg
└── serviceWorker.js
├── README.md
├── .gitignore
└── package.json
/public/robots.txt:
--------------------------------------------------------------------------------
1 | # https://www.robotstxt.org/robotstxt.html
2 | User-agent: *
3 | Disallow:
4 |
--------------------------------------------------------------------------------
/scroll-arrow.gif:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/macro6461/react-scroll-arrow-old/HEAD/scroll-arrow.gif
--------------------------------------------------------------------------------
/public/favicon.ico:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/macro6461/react-scroll-arrow-old/HEAD/public/favicon.ico
--------------------------------------------------------------------------------
/public/logo192.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/macro6461/react-scroll-arrow-old/HEAD/public/logo192.png
--------------------------------------------------------------------------------
/public/logo512.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/macro6461/react-scroll-arrow-old/HEAD/public/logo512.png
--------------------------------------------------------------------------------
/src/setupTests.js:
--------------------------------------------------------------------------------
1 | // jest-dom adds custom jest matchers for asserting on DOM nodes.
2 | // allows you to do things like:
3 | // expect(element).toHaveTextContent(/react/i)
4 | // learn more: https://github.com/testing-library/jest-dom
5 | import '@testing-library/jest-dom/extend-expect';
6 |
--------------------------------------------------------------------------------
/src/App.js:
--------------------------------------------------------------------------------
1 | import React from 'react';
2 | import './App.css';
3 | import ScrollTopArrow from './components/ScrollTopArrow';
4 |
5 | function App() {
6 | return (
7 |
8 |
9 |
10 | );
11 | }
12 |
13 | export default App;
14 |
--------------------------------------------------------------------------------
/src/App.test.js:
--------------------------------------------------------------------------------
1 | import React from 'react';
2 | import { render } from '@testing-library/react';
3 | import App from './App';
4 |
5 | test('renders learn react link', () => {
6 | const { getByText } = render();
7 | const linkElement = getByText(/learn react/i);
8 | expect(linkElement).toBeInTheDocument();
9 | });
10 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # React Scroll Arrow (OLD)
2 |
3 | ## **NOTE: YOU CAN NOW TRY OUT THE NPM PACKAGE I MADE FOR THIS. [GO TO THE REPO ON GITHUB FOR MORE INFO.](https://github.com/macro6461/react-scroll-arrow)**
4 |
5 | This is the code for making your own react scroll arrow that is hidden until you reach a certain scroll length.
6 |
7 | 
8 |
--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
1 | # See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
2 |
3 | # dependencies
4 | /node_modules
5 | /.pnp
6 | .pnp.js
7 |
8 | # testing
9 | /coverage
10 |
11 | # production
12 | /build
13 |
14 | # misc
15 | .DS_Store
16 | .env.local
17 | .env.development.local
18 | .env.test.local
19 | .env.production.local
20 |
21 | npm-debug.log*
22 | yarn-debug.log*
23 | yarn-error.log*
24 |
--------------------------------------------------------------------------------
/src/index.css:
--------------------------------------------------------------------------------
1 | body {
2 | margin: 0;
3 | font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
4 | 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
5 | sans-serif;
6 | -webkit-font-smoothing: antialiased;
7 | -moz-osx-font-smoothing: grayscale;
8 | }
9 |
10 | code {
11 | font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
12 | monospace;
13 | }
14 |
--------------------------------------------------------------------------------
/src/App.css:
--------------------------------------------------------------------------------
1 | .App {
2 | text-align: center;
3 | height: 5000px;
4 | }
5 |
6 | .scrollTop {
7 | position: fixed;
8 | width: 100%;
9 | bottom: 20px;
10 | align-items: center;
11 | height: 20px;
12 | justify-content: center;
13 | z-index: 1000;
14 | cursor: pointer;
15 | animation: fadeIn 0.3s;
16 | transition: opacity 0.4s;
17 | opacity: 0.5;
18 | }
19 |
20 | .scrollTop:hover{
21 | opacity: 1;
22 | }
23 |
24 | @keyframes fadeIn {
25 | 0% {
26 | opacity: 0;
27 | }
28 | 100% {
29 | opacity: 0.5;
30 | }
31 | }
32 |
--------------------------------------------------------------------------------
/src/index.js:
--------------------------------------------------------------------------------
1 | import React from 'react';
2 | import ReactDOM from 'react-dom';
3 | import './index.css';
4 | import App from './App';
5 | import * as serviceWorker from './serviceWorker';
6 |
7 | ReactDOM.render(
8 |
9 |
10 | ,
11 | document.getElementById('root')
12 | );
13 |
14 | // If you want your app to work offline and load faster, you can change
15 | // unregister() to register() below. Note this comes with some pitfalls.
16 | // Learn more about service workers: https://bit.ly/CRA-PWA
17 | serviceWorker.unregister();
18 |
--------------------------------------------------------------------------------
/public/manifest.json:
--------------------------------------------------------------------------------
1 | {
2 | "short_name": "React App",
3 | "name": "Create React App Sample",
4 | "icons": [
5 | {
6 | "src": "favicon.ico",
7 | "sizes": "64x64 32x32 24x24 16x16",
8 | "type": "image/x-icon"
9 | },
10 | {
11 | "src": "logo192.png",
12 | "type": "image/png",
13 | "sizes": "192x192"
14 | },
15 | {
16 | "src": "logo512.png",
17 | "type": "image/png",
18 | "sizes": "512x512"
19 | }
20 | ],
21 | "start_url": ".",
22 | "display": "standalone",
23 | "theme_color": "#000000",
24 | "background_color": "#ffffff"
25 | }
26 |
--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
1 | {
2 | "name": "react-scroll-arrow",
3 | "version": "0.1.0",
4 | "private": true,
5 | "dependencies": {
6 | "@testing-library/jest-dom": "^4.2.4",
7 | "@testing-library/react": "^9.3.2",
8 | "@testing-library/user-event": "^7.1.2",
9 | "react": "^16.13.1",
10 | "react-dom": "^16.13.1",
11 | "react-icons": "^3.9.0",
12 | "react-scripts": "3.4.1"
13 | },
14 | "scripts": {
15 | "start": "react-scripts start",
16 | "build": "react-scripts build",
17 | "test": "react-scripts test",
18 | "eject": "react-scripts eject"
19 | },
20 | "eslintConfig": {
21 | "extends": "react-app"
22 | },
23 | "browserslist": {
24 | "production": [
25 | ">0.2%",
26 | "not dead",
27 | "not op_mini all"
28 | ],
29 | "development": [
30 | "last 1 chrome version",
31 | "last 1 firefox version",
32 | "last 1 safari version"
33 | ]
34 | }
35 | }
36 |
--------------------------------------------------------------------------------
/src/components/ScrollTopArrow.js:
--------------------------------------------------------------------------------
1 | import React, {useState, useEffect} from 'react';
2 | import {FaArrowCircleUp} from 'react-icons/fa';
3 | import '../App.css';
4 |
5 |
6 | const ScrollTopArrow = () =>{
7 |
8 | const [showScroll, setShowScroll] = useState(false)
9 |
10 | useEffect(()=>{
11 | window.addEventListener('scroll', checkScrollTop)
12 | return function cleanup() {
13 | window.removeEventListener('scroll', checkScrollTop)
14 | }
15 | })
16 |
17 | const checkScrollTop = () => {
18 | if (!showScroll && window.pageYOffset > 400){
19 | setShowScroll(true)
20 | } else if (showScroll && window.pageYOffset <= 400){
21 | setShowScroll(false)
22 | }
23 | };
24 |
25 | const scrollTop = () =>{
26 | window.scrollTo({top: 0, behavior: 'smooth'});
27 | };
28 |
29 | return (
30 |
31 | );
32 | }
33 |
34 | export default ScrollTopArrow;
--------------------------------------------------------------------------------
/public/index.html:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
12 |
13 |
17 |
18 |
27 | React App
28 |
29 |
30 |
31 |
32 |
42 |
43 |
44 |
--------------------------------------------------------------------------------
/src/logo.svg:
--------------------------------------------------------------------------------
1 |
8 |
--------------------------------------------------------------------------------
/src/serviceWorker.js:
--------------------------------------------------------------------------------
1 | // This optional code is used to register a service worker.
2 | // register() is not called by default.
3 |
4 | // This lets the app load faster on subsequent visits in production, and gives
5 | // it offline capabilities. However, it also means that developers (and users)
6 | // will only see deployed updates on subsequent visits to a page, after all the
7 | // existing tabs open on the page have been closed, since previously cached
8 | // resources are updated in the background.
9 |
10 | // To learn more about the benefits of this model and instructions on how to
11 | // opt-in, read https://bit.ly/CRA-PWA
12 |
13 | const isLocalhost = Boolean(
14 | window.location.hostname === 'localhost' ||
15 | // [::1] is the IPv6 localhost address.
16 | window.location.hostname === '[::1]' ||
17 | // 127.0.0.0/8 are considered localhost for IPv4.
18 | window.location.hostname.match(
19 | /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
20 | )
21 | );
22 |
23 | export function register(config) {
24 | if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
25 | // The URL constructor is available in all browsers that support SW.
26 | const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href);
27 | if (publicUrl.origin !== window.location.origin) {
28 | // Our service worker won't work if PUBLIC_URL is on a different origin
29 | // from what our page is served on. This might happen if a CDN is used to
30 | // serve assets; see https://github.com/facebook/create-react-app/issues/2374
31 | return;
32 | }
33 |
34 | window.addEventListener('load', () => {
35 | const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
36 |
37 | if (isLocalhost) {
38 | // This is running on localhost. Let's check if a service worker still exists or not.
39 | checkValidServiceWorker(swUrl, config);
40 |
41 | // Add some additional logging to localhost, pointing developers to the
42 | // service worker/PWA documentation.
43 | navigator.serviceWorker.ready.then(() => {
44 | console.log(
45 | 'This web app is being served cache-first by a service ' +
46 | 'worker. To learn more, visit https://bit.ly/CRA-PWA'
47 | );
48 | });
49 | } else {
50 | // Is not localhost. Just register service worker
51 | registerValidSW(swUrl, config);
52 | }
53 | });
54 | }
55 | }
56 |
57 | function registerValidSW(swUrl, config) {
58 | navigator.serviceWorker
59 | .register(swUrl)
60 | .then(registration => {
61 | registration.onupdatefound = () => {
62 | const installingWorker = registration.installing;
63 | if (installingWorker == null) {
64 | return;
65 | }
66 | installingWorker.onstatechange = () => {
67 | if (installingWorker.state === 'installed') {
68 | if (navigator.serviceWorker.controller) {
69 | // At this point, the updated precached content has been fetched,
70 | // but the previous service worker will still serve the older
71 | // content until all client tabs are closed.
72 | console.log(
73 | 'New content is available and will be used when all ' +
74 | 'tabs for this page are closed. See https://bit.ly/CRA-PWA.'
75 | );
76 |
77 | // Execute callback
78 | if (config && config.onUpdate) {
79 | config.onUpdate(registration);
80 | }
81 | } else {
82 | // At this point, everything has been precached.
83 | // It's the perfect time to display a
84 | // "Content is cached for offline use." message.
85 | console.log('Content is cached for offline use.');
86 |
87 | // Execute callback
88 | if (config && config.onSuccess) {
89 | config.onSuccess(registration);
90 | }
91 | }
92 | }
93 | };
94 | };
95 | })
96 | .catch(error => {
97 | console.error('Error during service worker registration:', error);
98 | });
99 | }
100 |
101 | function checkValidServiceWorker(swUrl, config) {
102 | // Check if the service worker can be found. If it can't reload the page.
103 | fetch(swUrl, {
104 | headers: { 'Service-Worker': 'script' },
105 | })
106 | .then(response => {
107 | // Ensure service worker exists, and that we really are getting a JS file.
108 | const contentType = response.headers.get('content-type');
109 | if (
110 | response.status === 404 ||
111 | (contentType != null && contentType.indexOf('javascript') === -1)
112 | ) {
113 | // No service worker found. Probably a different app. Reload the page.
114 | navigator.serviceWorker.ready.then(registration => {
115 | registration.unregister().then(() => {
116 | window.location.reload();
117 | });
118 | });
119 | } else {
120 | // Service worker found. Proceed as normal.
121 | registerValidSW(swUrl, config);
122 | }
123 | })
124 | .catch(() => {
125 | console.log(
126 | 'No internet connection found. App is running in offline mode.'
127 | );
128 | });
129 | }
130 |
131 | export function unregister() {
132 | if ('serviceWorker' in navigator) {
133 | navigator.serviceWorker.ready
134 | .then(registration => {
135 | registration.unregister();
136 | })
137 | .catch(error => {
138 | console.error(error.message);
139 | });
140 | }
141 | }
142 |
--------------------------------------------------------------------------------