JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://rawgithub.com/Wolfy87/EventEmitter/master/EventEmitter.min.js"></script>
<a href="#" id="sol">sol</a>
<a href="#" id="dora">dora</a>
<div id="bicho"></div>
<br>
the buttons change the state object of the component, and this changed state is passed to the form elements, which should change also, but don't, only the h1 changes.

CoffeeScript

sol =
  _id: "3579b78f78dbdc62a7755e53b6020405"
  descricao: "Uma cã gorda."
  nome: "Sol"
    
dora =
  _id: "3579b78f78dbdc62a7755e53b602442e"
  descricao: "A cãnificação da maldade."
  nome: "Dora"

main = ->
  {style, button, div, span, a, p, hr, dl, dt, dd, label, fieldset, legend, table, tr, th, td, h1, h2, h3, form, input, textarea} = React.DOM

  Bicho = React.createClass
    getInitialState: ->
      bicho: @props.bicho or {}

    componentDidMount: ->
      self = this
      ee.on 'showBicho', (bicho) ->
        self.setState bicho: bicho

    show: (e) ->
      console.log(@state.bicho)
      e.preventDefault()
    
    handleInputChange: (e) ->
      doc = @state.bicho
      doc[e.target.name] = e.target.value
      @setState bicho: doc

    render: ->
      bicho = @state.bicho
      if bicho._id
        (div ref: bicho._id,
          (h1 {}, "Editar #{bicho.nome}" or 'Adicionar bicho'),
          (form ref: 'form', onSubmit: @show,
            (input
              type: 'text'
              placeholder: 'Nome'
              name: 'nome'
              onChange: @handleInputChange
              value: bicho.nome
            ),
            (textarea
              name: 'descricao'
              onChange: @handleInputChange
              value: bicho.descricao),
            (button type: 'submit', 'Criar')
          )
        )
      else
        (div {})

  React.renderComponent Bicho(), document.getElementById 'bicho'

window.ee = new EventEmitter()
main()

document.getElementById('sol').onclick = ->
  ee.emit 'showBicho', sol

document.getElementById('dora').onclick = ->
  ee.emit 'showBicho', dora