An ePub-reader for react powered by EpubJS #react #epubjs #webpack #babel #standardjs

See demo

React reader is an react-wrapper for epub.js, using the v.03 branch. We are currently using a custom branch of epub.js#v3 to ensure that breaking changes is avoided. Its published on to @gerhardsletten/epubjs

epub.js is a great library, and this is a wrapper for this library, making it easier to use in a React-app.

import {
  EpubView, // Underlaying epub-canvas (wrapper for epub.js iframe)
  EpubViewStyle, // Styles for EpubView, you can pass it to the instance as a style prop for customize it
  ReactReader, // A simple epub-reader with left/right button and chapter navigation
  ReactReaderStyle // Styles for the epub-reader it you need to customize it
} from 'react-reader'

npm install react-reader --save

And in your react-component...

import React, {Component} from 'react'
import {ReactReader} from 'react-reader'

class App extends Component {
  render () {
    return (
      <div style={{position: 'relative', height: '100%'}}> // * Container needs a height..
        <ReactReader 
          url={'/alice.epub'} 
          title={'Alice in wonderland'}
          location={'epubcfi(/6/2[cover]!/6)'}
          locationChanged={(epubcifi) => console.log(epubcifi)}
          getRendition={this.getRendition}
        />
      </div>
    )
  }
  onRenditionSelection = (cfiRange, contents) => {
    console.log('Selection was created', cfiRange, contents)
    contents.mark(cfiRange, {}, (e) => {
      console.log('You clicked the selection')
    })
    contents.highlight(cfiRange)
    contents.window.getSelection().removeAllRanges()
  }
  getRendition = (rendition) => {
    // Get access to core events from epubjs
    rendition.on('selected', this.onRenditionSelection)
    // Add custom styles
    rendition.themes.default({
      '::selection': {
        'background': 'rgba(255,255,0, 0.3)'
      }
    })
}

See demo/App.js for an example of using the selection api in epubjs.

• url [string, required] - url to the epub-file, if its on another domain, remember to add cors for the file
• title [string] - the title of the book, displayed above the reading-canvas
• loadingView [element] - if you want to customize the loadingView
• showToc [bool] - wheather to show the toc / toc-nav
• location [string, number] - set / update location of the epub
• locationChange [func] - a function that recives the current location while user is reading
• tocChange [func] - when the the reader has parsed the book you will recive an array of the chapters
• styles [object] - override the default styles
• epubOptions [object] - pass custom properties to the epub rendition
• getRendition [func] - when epubjs has rendered the epub-file you can get access to the epubjs-rendition object here
• swipeable [bool, default false] - enable swiping left/right with react-swipeable. Warning this will disable interacting with epub.js iframe content like selection

Container needs a height.. The ReactReader will expand to 100% of width/height, so be sure to set a height on the parent element, either with position it absolute of window, set height or use paddingTop for proporsjonal scaling.

This is just the plain epub canvas, you will then need to implement the reader stuff like chapter (toc) navigation and next/prev buttons. Take a look at the implemention in ReactReader.js

import React, {Component} from 'react'
import {EpubView} from 'react-reader'

const epubOptions = {
  disableSrcdoc: true // If you use react-reader within cordova you need to set this because cordova webview will silently disable srcdoc for iframes, see https://issues.apache.org/jira/browse/CB-7379
}

class App extends Component {
  render () {
    return (
      /* The ReactReader will expand to 100% of width/height, so be sure to set a height on the parent element, either with position it absolute of window, set height or use paddingTop for proporsjonal scaling */
      <div style={{position: 'relative', height: '100%'}}>
        <EpubView 
          url={'/alice.epub'} 
          location={'epubcfi(/6/2[cover]!/6)'}
          locationChanged={(epubcifi) => console.log(epubcifi)}
          tocChanged={(toc) => console.log(toc)}
          epubOptions={epubOptions}
        />
      </div>
    )
  }
}

• url [string, required] - url to the epub-file, if its on another domain, remember to add cors for the file
• loadingView [element] - if you want to customize the loadingView
• location [string, number] - set / update location of the epub
• locationChange [func] - a function that recives the current location while user is reading
• tocChange [func] - when the the reader has parsed the book you will recive an array of the chapters
• styles [object] - override the default styles
• epubOptions [object] - pass custom properties to the epub rendition
• getRendition [func] - when epubjs has rendered the epub-file you can get access to the epubjs-rendition object here