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rws-pdf-viewer
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  1. 3
      .gitignore
  2. 50
      README.md
  3. 34
      package.json
  4. BIN
      public/favicon.ico
  5. 43
      public/index.html
  6. BIN
      public/logo192.png
  7. BIN
      public/logo512.png
  8. 25
      public/manifest.json
  9. BIN
      public/pdf-open-parameters.pdf
  10. 3
      public/robots.txt
  11. 33
      src/App.js
  12. 11
      src/index.css
  13. 21
      src/index.js
  14. 134
      src/serviceWorker.js

3
.gitignore vendored
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.eslintcache
node_modules
package-lock.json

50
README.md
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This folder demonstrates how to use [React PDF viewer](https://react-pdf-viewer.dev) with [Create React App](https://github.com/facebook/create-react-app).
## Install
* Install the dependencies
```console
$ npm install
```
* Build
```console
$ npm run build
```
* Run locally
```console
$ npm run start
```
Visit http://localhost:3000 to see it in action.
## Spotlights
[App.js](src/App.js):
``` javascript
import { Viewer, Worker } from '@react-pdf-viewer/core';
import { defaultLayoutPlugin } from '@react-pdf-viewer/default-layout';
import '@react-pdf-viewer/core/lib/styles/index.css';
import '@react-pdf-viewer/default-layout/lib/styles/index.css';
const defaultLayoutPluginInstance = defaultLayoutPlugin();
return (
<Worker workerUrl="https://unpkg.com/pdfjs-dist@2.15.349/build/pdf.worker.js">
<div style={{ height: '750px' }}>
<Viewer
fileUrl={`${process.env.PUBLIC_URL}/pdf-open-parameters.pdf`}
plugins={[
defaultLayoutPluginInstance,
]}
/>
</div>
</Worker>
);
```

34
package.json
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{
"name": "react-pdf-viewer-create-react-app",
"private": true,
"version": "0.0.0",
"dependencies": {
"@react-pdf-viewer/core": "3.6.0",
"@react-pdf-viewer/default-layout": "3.6.0",
"pdfjs-dist": "^2.15.349",
"react": "^18.2.0",
"react-dom": "^18.2.0",
"react-router-dom": "^6.7.0",
"react-scripts": "^5.0.1"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"eject": "react-scripts eject"
},
"eslintConfig": {
"extends": "react-app"
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
}
}

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public/index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="theme-color" content="#000000" />
<meta
name="description"
content="Web site created using create-react-app"
/>
<link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
<!--
manifest.json provides metadata used when your web app is installed on a
user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
-->
<link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
<!--
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>

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public/manifest.json
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{
"short_name": "React App",
"name": "Create React App Sample",
"icons": [
{
"src": "favicon.ico",
"sizes": "64x64 32x32 24x24 16x16",
"type": "image/x-icon"
},
{
"src": "logo192.png",
"type": "image/png",
"sizes": "192x192"
},
{
"src": "logo512.png",
"type": "image/png",
"sizes": "512x512"
}
],
"start_url": ".",
"display": "standalone",
"theme_color": "#000000",
"background_color": "#ffffff"
}

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# https://www.robotstxt.org/robotstxt.html
User-agent: *
Disallow:

33
src/App.js
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import * as React from "react";
import { Viewer, Worker } from "@react-pdf-viewer/core";
import { defaultLayoutPlugin } from "@react-pdf-viewer/default-layout";
import "@react-pdf-viewer/core/lib/styles/index.css";
import "@react-pdf-viewer/default-layout/lib/styles/index.css";
import { useLocation, useSearchParams } from "react-router-dom";
const App = () => {
const defaultLayoutPluginInstance = defaultLayoutPlugin();
const [searchParams, setSearchParams] = useSearchParams();
if (!searchParams.get("url")) return null;
return (
<Worker workerUrl="https://unpkg.com/pdfjs-dist@2.16.105/build/pdf.worker.js">
<div
style={{
height: "750px",
width: "900px",
marginLeft: "auto",
marginRight: "auto",
}}
>
<Viewer
fileUrl={searchParams.get("url")}
plugins={[defaultLayoutPluginInstance]}
/>
</div>
</Worker>
);
};
export default App;

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src/index.css
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body {
margin: 0;
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans',
'Droid Sans', 'Helvetica Neue', sans-serif;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
code {
font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New', monospace;
}

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src/index.js
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import React from "react";
import ReactDOM from "react-dom";
import "./index.css";
import App from "./App";
import * as serviceWorker from "./serviceWorker";
import { BrowserRouter } from "react-router-dom";
ReactDOM.render(
<React.StrictMode>
<BrowserRouter>
<App />
</BrowserRouter>
,
</React.StrictMode>,
document.getElementById("root")
);
// If you want your app to work offline and load faster, you can change
// unregister() to register() below. Note this comes with some pitfalls.
// Learn more about service workers: https://bit.ly/CRA-PWA
serviceWorker.unregister();

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// This optional code is used to register a service worker.
// register() is not called by default.
// 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 subsequent visits to a page, after all the
// existing tabs open on the page have been closed, since previously cached
// resources are updated in the background.
// To learn more about the benefits of this model and instructions on how to
// opt-in, read https://bit.ly/CRA-PWA
const isLocalhost = Boolean(
window.location.hostname === 'localhost' ||
// [::1] is the IPv6 localhost address.
window.location.hostname === '[::1]' ||
// 127.0.0.0/8 are considered localhost for IPv4.
window.location.hostname.match(/^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/)
);
export function register(config) {
if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
// The URL constructor is available in all browsers that support SW.
const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href);
if (publicUrl.origin !== window.location.origin) {
// Our service worker won't work if PUBLIC_URL is on a different origin
// from what our page is served on. This might happen if a CDN is used to
// serve assets; see https://github.com/facebook/create-react-app/issues/2374
return;
}
window.addEventListener('load', () => {
const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
if (isLocalhost) {
// This is running on localhost. Let's check if a service worker still exists or not.
checkValidServiceWorker(swUrl, config);
// Add some additional logging to localhost, pointing developers to the
// service worker/PWA documentation.
navigator.serviceWorker.ready.then(() => {
console.log(
'This web app is being served cache-first by a service ' +
'worker. To learn more, visit https://bit.ly/CRA-PWA'
);
});
} else {
// Is not localhost. Just register service worker
registerValidSW(swUrl, config);
}
});
}
}
function registerValidSW(swUrl, config) {
navigator.serviceWorker
.register(swUrl)
.then((registration) => {
registration.onupdatefound = () => {
const installingWorker = registration.installing;
if (installingWorker == null) {
return;
}
installingWorker.onstatechange = () => {
if (installingWorker.state === 'installed') {
if (navigator.serviceWorker.controller) {
// At this point, the updated precached content has been fetched,
// but the previous service worker will still serve the older
// content until all client tabs are closed.
console.log(
'New content is available and will be used when all ' +
'tabs for this page are closed. See https://bit.ly/CRA-PWA.'
);
// Execute callback
if (config && config.onUpdate) {
config.onUpdate(registration);
}
} 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.');
// Execute callback
if (config && config.onSuccess) {
config.onSuccess(registration);
}
}
}
};
};
})
.catch((error) => {
console.error('Error during service worker registration:', error);
});
}
function checkValidServiceWorker(swUrl, config) {
// Check if the service worker can be found. If it can't reload the page.
fetch(swUrl, {
headers: { 'Service-Worker': 'script' },
})
.then((response) => {
// Ensure service worker exists, and that we really are getting a JS file.
const contentType = response.headers.get('content-type');
if (response.status === 404 || (contentType != null && contentType.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, config);
}
})
.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();
})
.catch((error) => {
console.error(error.message);
});
}
}
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