substance/model/ChangeRecorder.js

Substance is a JavaScript library for web-based content editing. It provides building blocks for realizing custom text editors and web-based publishing systems.

import EditingInterface from './EditingInterface'
import DocumentChange from './DocumentChange'

export default
class ChangeRecorder extends EditingInterface {

  constructor(doc) {
    super(doc.clone())
  }

  generateChange() {
    const doc = this.getDocument()
    const ops = doc._ops.slice()
    doc._ops.length = 0
    let change = new DocumentChange(ops, {}, {})
    change._extractInformation(doc)
    return change
  }

}