@bbc/react-transcript-editor

React Transcript Editor

A React component to make transcribing audio and video easier and faster.

The project uses [this github project boards to organise and the co-ordinate development](https://github.com/bbc/react-transcript-editor/projects). _--> Work in progress <--_

• You can see a demo by clicking here (and then click the load demo button)
• And you can see a list of features here.

Development env

• npm > 6.1.0
• Node 10 - dubnium

Node version is set in node version manager .nvmrc

Setup

• Fork this repository
• Clone this repository to a directory of your choice
• Run npm i to install dependencies

Usage - development

We use a tool called storybook to run the components locally. To start the Storybook, run:

npm start

Running that command should open the locally hosted Storybook, but if it doesn't, visit http://localhost:6006

Usage - production

In order to use a published version of react-transcript-editor, install the published module @bbc/react-transcript-editor by running:

npm install @bbc/react-transcript-editor

import TranscriptEditor from "@bbc/react-transcript-editor";

Basic use case

<TranscriptEditor
  transcriptData={someJsonFile}
  mediaUrl={"https://download.ted.com/talks/KateDarling_2018S-950k.mp4"}
/>

transcriptData and mediaUrl are non-optional props to use TranscriptEditor. See the full list of options here.

Advanced use case

<TranscriptEditor
  transcriptData={someJsonFile}
  mediaUrl={"https://download.ted.com/talks/KateDarling_2018S-950k.mp4"}
  handleAutoSaveChanges={this.handleAutoSaveChanges}
  autoSaveContentType={"digitalpaperedit"}
  isEditable={true}
  spellCheck={false}
  sttJsonType={"bbckaldi"}
  handleAnalyticsEvents={this.handleAnalyticsEvents}
  fileName={"ted-talk.mp4"}
  title={"Ted Talk"}
  ref={this.transcriptEditorRef}
  mediaType={"video"}
/>

TranscriptEditor Props List

Props	Description	required	type	default
transcriptData	Transcript JSON	yes	JSON
mediaUrl	URL to media (audio or video) file	yes	String
handleAutoSaveChanges	Function to handle the content of transcription after a change	no	Function
autoSaveContentType	Specify the file format for data returned by handleAutoSaveChanges	no	String	falls back to sttJsonType, if set, or draftjs
isEditable	Set to true to have the ability to edit the text	no	Boolean	False
spellCheck	Set to true to spell-check the transcript	no	Boolean	False
sttJsonType	The data model type of your transcriptData	no	String	draftjs
handleAnalyticsEvents	if you want to collect analytics events.	no	Function	false
fileName	used for saving and retrieving local storage blob files	no, but disables the local save feature	String
title	defaults to empty string	no	String
ref	If you want to have access to internal functions such as retrieving content from the editor. eg to save to a server/db.	no	React ref
mediaType	Can be audio or video. Changes the look of the UI based on media type.	no	String	if not provided the component uses the medialUrl to determine the media type

See ./demo/app.js demo as a more detailed example usage of the component.

Local save

fileName is optional but it's needed if working with user uploaded local media in the browser, to be able to save and retrieve from local storage. For instance if you are passing a blob url to mediaUrl using createObjectURL this url is randomly re-generated on every page refresh so you wouldn't be able to restore a session, as mediaUrl is used as the local storage key. See demo app for more detail example of this./src/index.js_

Typescript projects

If using in a parent project where typescript is being used you might need to add //@ts-ignore before the import statment like this

//@ts-ignore
import { TranscriptEditor } from "@bbc/react-transcript-editor";

Internal components

Direct imports

You can also import some of the underlying React components directly. See the storybook for each component details on optional and required attributes.

• TranscriptEditor
• TimedTextEditor
• MediaPlayer
• VideoPlayer
• Settings
• KeyboardShortcuts
• ProgressBar
• PlaybackRate
• PlayerControls
• RollBack
• Select

To import the components you can do as follows

import TimedTextEditor from "@bbc/react-transcript-editor/TimedTextEditor";

import { TimedTextEditor } from "@bbc/react-transcript-editor";

Import recommendation

However if you are not using TranscriptEditor it is recommended to follow the second option and import individual components like: @bbc/react-transcript-editor/TimedTextEditor rather than the entire library. Doing so pulls in only the specific components that you use, which can significantly reduce the amount of code you end up sending to the client. (Similarly to how react-bootstrap works)

Other Node Modules (non-react)

Some of these node modules can be used as standalone imports.

Export Adapter

Converts from draftJs json format to other formats

import exportAdapter from "@bbc/react-transcript-editor/exportAdapter";

STT JSON Adapter

Converts various stt json formats to draftJs

import sttJsonAdapter from "@bbc/react-transcript-editor/sttJsonAdapter";

Conversion modules to/from Timecodes

Some modules to convert to and from timecodes

import {
  secondsToTimecode,
  timecodeToSeconds,
  shortTimecode,
} from "@bbc/react-transcript-editor/timecodeConverter";

System Architecture

• Uses storybook with the setup as explained in their docs to develop this React.
• This uses CSS Modules to contain the scope of the css for this component.
• `.storybook/webpack.config.js enables the storybook webpack config to add support for css modules.
• The parts of the component are inside ./packages
• babel.config.js provides root level system config for babel 7.

Documentation

There's a docs folder in this repository, which contains subdirectories to keep:

• notes: dev notes on various aspects of the project.
• adr: Architecture Decision Record.

ADR

An architectural decision record (ADR) is a document that captures an important architectural decision made along with its context and consequences.

We are using this template for ADR

QA

There also QA testing docs to manual test the component before a major release, (QA testing does not require any technical knowledge).

Build

To transpile ./packages and create a build in the ./dist folder, run:

npm run build:component

To understand the build process, have a read through this.

Demo & storybook

• Storybook can be viewed at https://bbc.github.io/react-transcript-editor/
• Demo can be viewed at https://bbc.github.io/react-transcript-editor/iframe.html?id=demo--default

To run locally, see setup.

Build - storybook

To build the storybook as a static site, run:

npm run build:storybook

This will produce a build folder containing the static site of the demo. To serve the build folder locally, run:

npm run build:storybook:serve

Publishing to a web page

Github Pages

We use github pages to host the storybook and the demo of the component. Make sure to add your changes to git, and push to origin master to ensure the code in master is reflective of what's online on Github Pages. When you are ready, re-publish the Storybook by running:

npm run deploy:ghpages

Tests

We are using jest for the testing framework. To run tests, run:

npm run test

For convenience, during development you can use:

npm run test:watch

and watch the test be re-run at every save.

Travis CI

On commit this repo uses the .travis.yml config to run the automated test on travis CI.

Publish to NPM

To publish to npm - @bbc/react-transcript-editor run:

npm publish:public

This runs npm run build:component and npm publish --access public under the hood, building the component and publishing to NPM.

Note that only README.md and the dist folders are published to npm.

Contributing

See CONTRIBUTING.md guidelines and CODE_OF_CONDUCT.md guidelines.

Licence

See LICENCE

Legal Disclaimer

Despite using React and DraftJs, the BBC is not promoting any Facebook products or other commercial interest.