soocrate-core/src/communication/TextManager/TitleManager.js

this is the core of soocrate application

import { TextEvent } from './TextEvent'
var debug = require('debug')('CRATE:Communication:TextManager:TitleManager')
export class TitleManager extends TextEvent {
  constructor(opts) {
    const EventName = opts.EventName || 'Title'
    super({ EventName, ...opts })
    this._textManager = opts.TextManager
    this._communicationChannel = this._document._communication._behaviors_comm
    this.action = this.sendChangeTitle
  }
  /**
   * [sendChangeTitle Broadcast the new title]
   * @param  {[type]} title [description]
   * @return {[type]}       [description]
   */
  sendChangeTitle(title, id = null) {
    debug('Title sent ', title)
    this._document.name = title
    const msg = {
      id: this._document.uid,
      title: title
    }

    if (!id) {
      this.broadcast(msg)
    } else {
      debug('send title in unicast')
      this.unicast(id, msg)
    }
  }
  /**
   * [changeTitle At the reception of MTitleChanged ]
   * @param  {[type]} title [description]
   * @return {[type]}       [description]
   */

  receive(msg) {
    this.emit('changeTitle', msg.title)
    this._document.name = msg.title
  }
}