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react-file-viewer-with-pdf-and-xlsx-fixes

v0.1.4

Published

Extendable file viewer for web

Downloads

37

Readme

react-file-viewer

Extendable file viewer for web

Supported file formats:

  • Images: png, jpeg, gif, bmp, including 360-degree images
  • pdf
  • csv
  • xslx
  • docx
  • Video: mp4, webm
  • Audio: mp3

Fork of PlanGrid

This is a fork of PlanGrid's react-file-viewer. It appears that PlanGrid have decided to not maintain their version, as there are numerous pull requests and bugs open that have not been addressed. Therefore the only course of action is to fork. I would have preferred to have submitted this back to them. Pretty much this is just an upgrade of their version using all the latest packages. The number of vulnerability warnings the current PlanGrid is generating left no choice but to fork.

Fix of pdf issue in nuzz78/react-file-viewer

Changes made

  1. Removed controls of download for audio and video
  2. Fixed pdf worker error of react-pdf

Usage

Note this module works best with react 16+. If you are using React < 16 you will likely need to use version 0.5. npm install [email protected].

There is one main React component, FileViewer, that takes the following props:

fileType string: type of resource to be shown (one of the supported file formats, eg 'png'). Passing in an unsupported file type will result in displaying an unsupported file type message (or a custom component).

filePath string: the url of the resource to be shown by the FileViewer.

onError function [optional]: function that will be called when there is an error in the file viewer fetching or rendering the requested resource. This is a place where you can pass a callback for a logging utility.

errorComponent react element [optional]: A component to render in case of error instead of the default error component that comes packaged with react-file-viewer.

unsupportedComponent react element [optional]: A component to render in case the file format is not supported.

To use a custom error component, you might do the following:

// MyApp.js
import React, { Component } from 'react';
import logger from 'logging-library';
import FileViewer from 'react-file-viewer';
import { CustomErrorComponent } from 'custom-error';

const file = 'http://example.com/image.png'
const type = 'png'

class MyComponent extends Component {
  render() {
    return (
      <FileViewer
        fileType={type}
        filePath={file}
        errorComponent={CustomErrorComponent}
        onError={this.onError}/>
    );
  }

  onError(e) {
    logger.logError(e, 'error in file-viewer');
  }
}

Development

There is a demo app built into this library that can be used for development purposes. It is by default served via webpack-dev-server.

To start demo app

make start will start the demo app served by webpack-dev-server

Testing

Tests use Jest and Enzyme.

Run tests with:

make test

This starts Jest in watch mode. To run a particular test file, while in watch mode hit p and then type the path or name of the file.

Some tests use snapshots. If intended changes to a component cause snapshot tests to fail, snapshot files need to be updated (stored in __snapshots__ directories). To do this run:

npm run jest --updateSnapshot

To run the linter

make lint

Extending the file viewer

Adding supported file types is easy (and pull requests are welcome!). Say, for example, you want to add support for .rtf files. First, you need to create a "driver" for that file type. A driver is just a component that is capable of rendering that file type. (See what exists now in src/components/drivers.) After you've created the driver component and added it to src/components/drivers, you simply need to import the component into file-vewer.jsx and add a switch clause for rtf to the getDriver method. Ie:

case 'rtf':
  return RtfViewer;

Roadmap

  • Remove ignored linting rules and fix them