react-native-readium

Have A Bug/Feature You Care About?

We ❤️ open source. We work on the things that are important to us when we're able to work on them. Have an issue you care about?

Overview

A react-native wrapper for https://readium.org/. At a high level this package allows you to do things like:

Render an ebook view.
Register for location changes (as the user pages through the book).
Register for the Table of Contents (so that you can display things like chapters in your app)
Control settings of the Reader. Things like:
- Dark Mode, Light Mode, Sepia Mode
- Font Size
- Page Margins
- More (see the Settings documentation in the API section)
Etc. (read on for more details. 📖)

Installation
Usage
Supported Formats & DRM
API
Contributing
Release
License

Dark Mode	Light Mode

Installation

Prerequisites

iOS: Requires an iOS target >= 13.0 (see the iOS section for more details).
Android: Requires compileSdkVersion >= 31 (see the Android section for more details).

Install Module

NPM

npm install react-native-readium

Yarn

yarn add react-native-readium

iOS

Due to the current state of the Readium swift libraries you need to manually update your Podfile (see more on that here).

# ./ios/Podfile
...
platform :ios, '13.0'

...

target 'ExampleApp' do
  config = use_native_modules!
  ...
  pod 'GCDWebServer', podspec: 'https://raw.githubusercontent.com/readium/GCDWebServer/3.7.5/GCDWebServer.podspec', modular_headers: true
  pod 'R2Navigator', podspec: 'https://raw.githubusercontent.com/readium/swift-toolkit/2.6.0/Support/CocoaPods/ReadiumNavigator.podspec'
  pod 'R2Shared', podspec: 'https://raw.githubusercontent.com/readium/swift-toolkit/2.6.0/Support/CocoaPods/ReadiumShared.podspec'
  pod 'R2Streamer', podspec: 'https://raw.githubusercontent.com/readium/swift-toolkit/2.6.0/Support/CocoaPods/ReadiumStreamer.podspec'
  pod 'ReadiumInternal', podspec: 'https://raw.githubusercontent.com/readium/swift-toolkit/2.6.0/Support/CocoaPods/ReadiumInternal.podspec'
  pod 'Minizip', modular_headers: true
  ...
end

Finally, install the pods:

pod install

Android

If you're not using compileSdkVersion >= 31 you'll need to update that:

// android/build.gradle
...
buildscript {
    ...
    ext {
        ...
        compileSdkVersion = 31
...

Usage

import React, { useState } from 'react';
import { ReadiumView } from 'react-native-readium';
import type { File } from 'react-native-readium';

const MyComponent: React.FC = () => {
  const [file] = useState<File>({
    url: SOME_LOCAL_FILE_URL,
  });

  return (
    <ReadiumView
      file={file}
    />
  );
}

Take a look at the Example App for a more complex usage example.

Supported Formats & DRM

Format Support

Format	Support	Notes
Epub 2	✅
Epub 3	✅
PDF	❌	On the roadmap, feel free to submit a PR or ask for direction.
CBZ	❌	On the roadmap, feel free to submit a PR or ask for direction.

Missing a format you need? Reach out and see if it can be added to the roadmap.

DRM Support

DRM is not supported at this time. However, there is a clear path to support it via LCP and the intention is to eventually implement it.

API

View Props

Name	Type	Optional	Description
`file`	`File`	❌	A file object containing the path to the eBook file on disk.
`location`	`Locator` \| `Link`	✅	A locator prop that allows you to externally control the location of the reader (e.g. Chapters or Bookmarks). ⚠️ If you want to set the `location` of an ebook on initial load, you should use the `File.initialLocation` property (look at the `file` prop). See more here
`settings`	`Partial<Settings>`	✅	An object that allows you to control various aspects of the reader's UI (epub only)
`style`	`ViewStyle`	✅	A traditional style object.
`onLocationChange`	`(locator: Locator) => void`	✅	A callback that fires whenever the location is changed (e.g. the user transitions to a new page)
`onTableOfContents`	`(toc: Link[] \| null) => void`	✅	A callback that fires once the file is parsed and emits the table of contents embedded in the file. Returns `null` or an empty `[]` if no TOC exists. See the `Link` interface for more info.

⚠️ Web vs Native File URLs

Please note that on web the File.url should be a web accessible URL path to the manifest.json of the unpacked epub. In native contexts it needs to be a local filepath to the epub file itself on disk. If you're not sure how to serve epub books take a look at this example which is based on the dita-streamer-js project (which is built on all the readium r2-*-js libraries)

Contributing

See the contributing guide to learn how to contribute to the repository and the development workflow.

Release

The standard release command for this project is:

yarn version

This command will:

Generate/update the Changelog
Bump the package version
Tag & pushing the commit

e.g.

yarn version --new-version 1.2.17
yarn version --patch // 1.2.17 -> 1.2.18

Sponsor The Library

If you'd like to sponsor a specific feature, fix, or the library in general, please reach out on an issue and we'll have a conversation!

License

MIT

5-stones/react-native-readium