119 lines
2.9 KiB
TypeScript
119 lines
2.9 KiB
TypeScript
import * as React from 'react'
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import * as q from '../../../../backend/src/Model'
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import { makeConnectionMessageEvent, rendererEvents, MqttMessage } from '../../../../events'
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import { AppState } from '../../reducers'
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import TreeNode from './TreeNode'
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import { connect } from 'react-redux'
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const MovingAverage = require('moving-average')
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const timeInterval = 10 * 1000
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const average = MovingAverage(timeInterval)
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declare var window: any
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interface Props {
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autoExpandLimit: number
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didSelectNode?: (node: q.TreeNode) => void
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connectionId?: string
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tree?: q.Tree
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}
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class Tree extends React.Component<Props, {}> {
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private updateTimer?: any
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private lastUpdate: number = 0
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private perf: number = 0
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constructor(props: any) {
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super(props)
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this.state = { }
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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.onMerge.unsubscribe(this.throttledTreeUpdate)
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}
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if (nextProps.tree) {
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nextProps.tree.onMerge.subscribe(this.throttledTreeUpdate)
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}
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}
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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.lastUpdate)
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this.updateTimer = setTimeout(() => {
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window.requestIdleCallback(() => {
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this.lastUpdate = performance.now()
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this.updateTimer && clearTimeout(this.updateTimer)
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this.updateTimer = undefined
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this.setState(this.state)
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}, { timeout: 500 })
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}, Math.max(0, timeUntilNextUpdate))
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}
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public componentWillUnmount() {
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if (this.props.connectionId) {
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const event = makeConnectionMessageEvent(this.props.connectionId)
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rendererEvents.unsubscribeAll(event)
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}
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}
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public render() {
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if (!this.props.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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animateChages={true}
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autoExpandLimit={this.props.autoExpandLimit}
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isRoot={true}
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didSelectNode={this.props.didSelectNode}
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treeNode={this.props.tree}
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name="/"
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collapsed={false}
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key="rootNode"
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lastUpdate={this.props.tree.lastUpdate}
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performanceCallback={this.performanceCallback}
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/>
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</div>
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)
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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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}
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const mapStateToProps = (state: AppState) => {
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return {
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autoExpandLimit: state.tooBigReducer.settings.autoExpandLimit,
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tree: state.connection.tree,
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}
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}
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export default connect(mapStateToProps)(Tree)
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