Files
mqtt-explorer/app/src/components/Sidebar/ValueRenderer/MessageHistory.tsx
Thomas Nordquist c20c075bcf Fix linter errors
2019-04-04 10:54:18 +02:00

102 lines
3.0 KiB
TypeScript

import * as q from '../../../../../backend/src/Model'
import * as React from 'react'
import BarChart from '@material-ui/icons/BarChart'
import DateFormatter from '../../helper/DateFormatter'
import History from '../History'
import { TopicViewModel } from '../../../TopicViewModel'
import { Base64Message } from '../../../../../backend/src/Model/Base64Message'
const PlotHistory = React.lazy(() => import('./PlotHistory'))
const throttle = require('lodash.throttle')
interface Props {
node?: q.TreeNode<TopicViewModel>
selected?: q.Message
onSelect: (message: q.Message) => void
}
interface State {
displayMessage?: q.Message,
anchorEl?: HTMLElement
}
class MessageHistory extends React.Component<Props, State> {
constructor(props: any) {
super(props)
this.state = { }
}
private updateNode = throttle(() => {
this.setState(this.state)
}, 300)
public componentWillReceiveProps(nextProps: Props) {
this.props.node && this.props.node.onMessage.unsubscribe(this.updateNode)
nextProps.node && nextProps.node.onMessage.subscribe(this.updateNode)
}
public componentDidMount() {
this.props.node && this.props.node.onMessage.subscribe(this.updateNode)
}
public componentWillUnMount() {
this.props.node && this.props.node.onMessage.unsubscribe(this.updateNode)
}
public render() {
const { node } = this.props
if (!node) {
return null
}
const history = node.messageHistory.toArray()
let previousMessage: q.Message | undefined = node.message
const historyElements = history.reverse().map((message) => {
const element = {
title: <span><DateFormatter date={message.received} /> {previousMessage ? <i>(-<DateFormatter date={message.received} intervalSince={previousMessage.received} />)</i> : null}</span>,
value: message.value ? Base64Message.toUnicodeString(message.value) : '',
selected: message && message === this.props.selected,
}
previousMessage = message
return element
})
const numericMessages = history
.map((message: q.Message) => {
const value = message.value ? parseFloat(Base64Message.toUnicodeString(message.value)) : NaN
return { x: message.received.getTime(), y: value }
}).filter(data => !isNaN(data.y))
const showPlot = numericMessages.length >= 2
return (
<div>
<History
items={historyElements}
contentTypeIndicator={showPlot ? <BarChart /> : undefined}
onClick={this.displayMessage}
>
{showPlot ? this.renderPlot(numericMessages) : null}
</History>
</div>
)
}
public renderPlot(data: {x: number, y: number}[]) {
return (
<React.Suspense fallback={<div>Loading...</div>}>
<PlotHistory data={data} />
</React.Suspense>
)
}
private displayMessage = (index: number, eventTarget: EventTarget) => {
const message = this.props.node && this.props.node.messageHistory.toArray().reverse()[index]
if (message) {
this.props.onSelect(message)
}
}
}
export default MessageHistory