/
app-client.js
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/
app-client.js
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// app-client.js
import React, { Component } from 'react'
import { render } from 'react-dom'
import Cosmic from 'cosmicjs'
import io from 'socket.io-client'
import config from './config'
import uuid from 'node-uuid'
import S from 'shorti'
import _ from 'lodash'
import { Input } from 'react-bootstrap'
class App extends Component {
constructor() {
super()
this.state = {
data: {
messages: []
}
}
}
componentDidMount() {
let data = this.state.data
setTimeout(() => {
this.refs.author.refs.input.focus()
}, 100)
const socket = io()
Cosmic.getObjects(config, (err, res) => {
const messages = res.objects.type.messages
if (messages) {
messages.reverse()
this.setState({
data: {
author: data.author,
messages
}
})
}
})
// Listen for messages coming in
socket.on('chat message', message => {
data = this.state.data
const messages = this.state.data.messages
if (data.author !== message.metafield.author.value) {
messages.push(message)
this.setState({
data: {
author: data.author,
messages
}
})
}
})
}
componentDidUpdate() {
if (this.refs.message)
this.refs.message.refs.input.focus()
if (this.refs.messages_scroll_area)
this.refs.messages_scroll_area.scrollTop = this.refs.messages_scroll_area.scrollHeight
}
setAuthor() {
const author = this.refs.author.refs.input.value.trim()
if (!author)
return
this.refs.author.refs.input.value = ''
const messages = this.state.data.messages
this.setState({
data: {
author,
messages
}
})
}
createMessage() {
const data = this.state.data
const messages = data.messages
const socket = io()
const message_text = this.refs.message.refs.input.value.trim()
if (!message_text)
return
const message_emit = {
message: message_text,
author: data.author
}
// Send message out
socket.emit('chat message', message_emit)
// Render to browser
const message_browser = {
_id: uuid.v1(),
metafield: {
author: {
value: data.author
},
message: {
value: message_text
}
}
}
messages.push(message_browser)
this.setState({
data: {
author: data.author,
messages
}
})
this.refs.message.refs.input.value = ''
}
handleSubmit(e) {
e.preventDefault()
const data = this.state.data
if (data.author)
this.createMessage()
else
this.setAuthor()
}
render() {
const data = this.state.data
let form_input
if (!data.author) {
form_input = (
<div>
Hi, what is your name?<br />
<Input type="text" ref="author" />
</div>
)
} else {
form_input = (
<div>
Hello { data.author }, type a message:<br />
<Input type="text" ref="message" />
</div>
)
}
const messages = data.messages
let messages_list
if (messages) {
// order by created
const sorted_messages = _.sortBy(messages, message => {
return message.created
})
messages_list = sorted_messages.map(message_object => {
if (message_object) {
return (
<li style={ { listStyle: 'none', ...S('mb-5') } } key={ message_object._id }>
<b>{ message_object.metafield.author.value }</b><br/>
{ message_object.metafield.message.value }
</li>
)
}
})
}
const scroll_area_style = {
...S('h-' + (window.innerHeight - 140)),
overflowY: 'scroll'
}
return (
<div>
<div style={ S('pl-15') }>
<h2>React Chat App</h2>
<div ref="messages_scroll_area" style={ scroll_area_style }>
<ul style={ S('p-0') }>{ messages_list }</ul>
</div>
</div>
<div style={ S('absolute b-0 w-100p pl-15 pr-15') }>
<form onSubmit={ this.handleSubmit.bind(this) }>
{ form_input }
</form>
</div>
</div>
)
}
}
const app = document.getElementById('app')
render(<App />, app)