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