Files
mqtt-explorer/app/src/components/Tree/Tree.tsx
2019-04-07 21:34:03 +02:00

150 lines
4.0 KiB
TypeScript

import * as q from '../../../../backend/src/Model'
import * as React from 'react'
import TreeNode from './TreeNode'
import { AppState } from '../../reducers'
import { bindActionCreators } from 'redux'
import { connect } from 'react-redux'
import { TopicOrder } from '../../reducers/Settings'
import { TopicViewModel } from '../../model/TopicViewModel'
import { treeActions } from '../../actions'
const MovingAverage = require('moving-average')
const averagingTimeInterval = 10 * 1000
const average = MovingAverage(averagingTimeInterval)
declare var window: any
interface Props {
actions: typeof treeActions
connectionId?: string
tree?: q.Tree<TopicViewModel>
filter: string
host?: string
topicOrder: TopicOrder
autoExpandLimit: number
highlightTopicUpdates: boolean
selectTopicWithMouseOver: boolean
paused: boolean
}
interface State {
lastUpdate: number
}
class Tree extends React.PureComponent<Props, State> {
private updateTimer?: any
private perf: number = 0
private renderTime = 0
constructor(props: any) {
super(props)
this.state = { lastUpdate: 0 }
}
private performanceCallback = (ms: number) => {
average.push(Date.now(), ms)
}
public time(): number {
const time = performance.now() - this.perf
this.perf = performance.now()
return time
}
public componentWillReceiveProps(nextProps: Props) {
if (this.props.tree !== nextProps.tree) {
if (this.props.tree) {
this.props.tree.didReceive.unsubscribe(this.throttledTreeUpdate)
}
if (nextProps.tree) {
nextProps.tree.didReceive.subscribe(this.throttledTreeUpdate)
}
this.setState(this.state)
}
}
public componentWillUnmount() {
this.props.tree && this.props.tree.didReceive.unsubscribe(this.throttledTreeUpdate)
}
public throttledTreeUpdate = () => {
if (this.updateTimer) {
return
}
const expectedRenderTime = average.forecast()
const updateInterval = Math.max(expectedRenderTime * 7, 300)
const timeUntilNextUpdate = updateInterval - (performance.now() - this.renderTime)
this.updateTimer = setTimeout(() => {
window.requestIdleCallback(() => {
this.updateTimer && clearTimeout(this.updateTimer)
this.updateTimer = undefined
this.renderTime = performance.now()
if (!this.props.paused) {
this.props.tree && this.props.tree.applyUnmergedChanges()
}
window.requestIdleCallback(() => {
this.setState({ lastUpdate: this.renderTime })
}, { timeout: 100 })
}, { timeout: 500 })
}, Math.max(0, timeUntilNextUpdate))
}
public render() {
const { tree, filter } = this.props
if (!tree) {
return null
}
const style: React.CSSProperties = {
lineHeight: '1.1',
cursor: 'default',
}
return (
<div style={style}>
<TreeNode
key={tree.hash()}
animateChages={true}
isRoot={true}
treeNode={tree}
name={this.props.host}
collapsed={false}
performanceCallback={this.performanceCallback}
autoExpandLimit={this.props.autoExpandLimit}
topicOrder={this.props.topicOrder}
lastUpdate={tree.lastUpdate}
didSelectTopic={this.props.actions.selectTopic}
highlightTopicUpdates={this.props.highlightTopicUpdates}
selectTopicWithMouseOver={this.props.selectTopicWithMouseOver}
/>
</div>
)
}
}
const mapStateToProps = (state: AppState) => {
return {
tree: state.tree.tree,
paused: state.tree.paused,
filter: state.tree.filter,
host: state.connection.host,
autoExpandLimit: state.settings.autoExpandLimit,
topicOrder: state.settings.topicOrder,
highlightTopicUpdates: state.settings.highlightTopicUpdates,
selectTopicWithMouseOver: state.settings.selectTopicWithMouseOver,
}
}
const mapDispatchToProps = (dispatch: any) => {
return {
actions: bindActionCreators(treeActions, dispatch),
}
}
export default connect(mapStateToProps, mapDispatchToProps)(Tree)