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343 lines
11 KiB
343 lines
11 KiB
import React, { Component } from 'react'
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import PropTypes from 'prop-types'
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import * as d3 from 'd3'
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import c3 from 'c3'
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function setTickPosition (axis, n, newPosition, secondNewPosition) {
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const positionToShift = axis === 'y' ? 'x' : 'y'
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const secondPositionToShift = axis === 'y' ? 'y' : 'x'
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d3.select('#chart')
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.select(`.c3-axis-${axis}`)
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.selectAll('.tick')
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.filter((d, i) => i === n)
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.select('text')
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.attr(positionToShift, 0)
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.select('tspan')
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.attr(positionToShift, newPosition)
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.attr(secondPositionToShift, secondNewPosition || 0)
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.style('visibility', 'visible')
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}
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function appendOrUpdateCircle ({ circle, data, itemIndex, cx, cy, cssId, appendOnly }) {
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if (appendOnly || circle.empty()) {
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circle.data([data])
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.enter().append('circle')
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.attr('class', () => this.generateClass('c3-selected-circle', itemIndex))
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.attr('id', cssId)
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.attr('cx', cx)
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.attr('cy', cy)
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.attr('stroke', () => this.color(data))
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.attr('r', 6)
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} else {
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circle.data([data])
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.attr('cx', cx)
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.attr('cy', cy)
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}
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}
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export default class GasPriceChart extends Component {
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static contextTypes = {
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t: PropTypes.func,
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}
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static propTypes = {
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priceAndTimeEstimates: PropTypes.array,
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}
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renderChart (priceAndTimeEstimates) {
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const gasPrices = priceAndTimeEstimates.map(({ gasprice }) => gasprice)
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const gasPricesMax = gasPrices[gasPrices.length - 1] + 1
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const estimatedTimes = priceAndTimeEstimates.map(({ expectedTime }) => expectedTime)
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const estimatedTimesMax = estimatedTimes[0]
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const chart = c3.generate({
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size: {
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height: 165,
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},
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transition: {
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duration: 0,
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},
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padding: {left: 20, right: 15, top: 6, bottom: 10},
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data: {
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x: 'x',
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columns: [
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['x', ...gasPrices],
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['data1', ...estimatedTimes],
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],
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types: {
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data1: 'area',
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},
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selection: {
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enabled: false,
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},
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},
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color: {
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data1: '#259de5',
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},
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axis: {
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x: {
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min: gasPrices[0],
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max: gasPricesMax,
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tick: {
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values: [Math.floor(gasPrices[0]), Math.ceil(gasPricesMax)],
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outer: false,
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format: function (val) { return val + ' GWEI' },
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},
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padding: {left: gasPricesMax / 50, right: gasPricesMax / 50},
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label: {
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text: 'Gas Price ($)',
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position: 'outer-center',
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},
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},
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y: {
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padding: {top: 7, bottom: 7},
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tick: {
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values: [Math.floor(estimatedTimesMax * 0.05), Math.ceil(estimatedTimesMax * 0.97)],
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outer: false,
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},
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label: {
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text: 'Confirmation time (sec)',
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position: 'outer-middle',
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},
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min: 0,
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},
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},
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legend: {
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show: false,
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},
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grid: {
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x: {},
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lines: {
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front: false,
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},
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},
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point: {
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focus: {
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expand: {
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enabled: false,
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r: 3.5,
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},
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},
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},
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tooltip: {
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format: {
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title: (v) => v.toPrecision(4),
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},
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contents: function (d, defaultTitleFormat, defaultValueFormat, color) {
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const config = this.config
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const titleFormat = config.tooltip_format_title || defaultTitleFormat
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let text
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let title
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d.forEach(el => {
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if (el && (el.value || el.value === 0) && !text) {
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title = titleFormat ? titleFormat(el.x) : el.x
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text = "<table class='" + 'custom-tooltip' + "'>" + (title || title === 0 ? "<tr><th colspan='2'>" + title + '</th></tr>' : '')
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}
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})
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return text + '</table>' + "<div class='tooltip-arrow'></div>"
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},
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position: function (data, width, height, element) {
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const overlayedCircle = d3.select('#overlayed-circle')
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if (overlayedCircle.empty()) {
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return { top: -100, left: -100 }
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}
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const { x: circleX, y: circleY, width: circleWidth } = overlayedCircle.node().getBoundingClientRect()
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const { x: chartXStart, y: chartYStart } = d3.select('.c3-chart').node().getBoundingClientRect()
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// TODO: Confirm the below constants work with all data sets and screen sizes
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// TODO: simplify l149-l159
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let y = circleY - chartYStart - 19
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if (circleY - circleWidth < chartYStart + 5) {
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y = y + circleWidth + 38
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d3.select('.tooltip-arrow').style('margin-top', '-16px')
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} else {
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d3.select('.tooltip-arrow').style('margin-top', '4px')
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}
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return {
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top: y,
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left: circleX - chartXStart + circleWidth - (gasPricesMax / 50),
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}
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},
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show: true,
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},
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})
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chart.internal.selectPoint = function (data, itemIndex = (data.index || 0)) {
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const { x: circleX, y: circleY, width: circleWidth } = d3.select('#overlayed-circle')
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.node()
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.getBoundingClientRect()
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const { x: chartXStart, y: chartYStart } = d3.select('.c3-areas-data1')
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.node()
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.getBoundingClientRect()
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d3.select('#set-circle').remove()
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const circle = this.main
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.select('.' + 'c3-selected-circles' + this.getTargetSelectorSuffix(data.id))
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.selectAll('.' + 'c3-selected-circle' + '-' + itemIndex)
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appendOrUpdateCircle.bind(this)({
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circle,
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data,
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itemIndex,
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cx: () => circleX - chartXStart + circleWidth + 2,
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cy: () => circleY - chartYStart + circleWidth + 1,
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cssId: 'set-circle',
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appendOnly: true,
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})
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}
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chart.internal.overlayPoint = function (data, itemIndex) {
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const circle = this.main
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.select('.' + 'c3-selected-circles' + this.getTargetSelectorSuffix(data.id))
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.selectAll('.' + 'c3-selected-circle' + '-' + itemIndex)
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appendOrUpdateCircle.bind(this)({
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circle,
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data,
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itemIndex,
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cx: this.circleX.bind(this),
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cy: this.circleY.bind(this),
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cssId: 'overlayed-circle',
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})
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}
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chart.internal.setCurrentCircle = function (data, itemIndex) {
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const circle = this.main
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.select('.' + 'c3-selected-circles' + this.getTargetSelectorSuffix(data.id))
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.selectAll('#current-circle')
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appendOrUpdateCircle.bind(this)({
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circle,
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data,
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itemIndex,
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cx: this.circleX.bind(this),
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cy: this.circleY.bind(this),
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cssId: 'current-circle',
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})
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}
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chart.internal.showTooltip = function (selectedData, element) {
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const $$ = this
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const config = $$.config
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const forArc = $$.hasArcType()
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const dataToShow = selectedData.filter((d) => d && (d.value || d.value === 0))
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const positionFunction = config.tooltip_position || chart.internal.prototype.tooltipPosition
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if (dataToShow.length === 0 || !config.tooltip_show) {
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return
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}
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$$.tooltip.html(config.tooltip_contents.call($$, selectedData, $$.axis.getXAxisTickFormat(), $$.getYFormat(forArc), $$.color)).style('display', 'flex')
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// Get tooltip dimensions
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const tWidth = $$.tooltip.property('offsetWidth')
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const tHeight = $$.tooltip.property('offsetHeight')
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const position = positionFunction.call(this, dataToShow, tWidth, tHeight, element)
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// Set tooltip
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$$.tooltip.style('top', position.top + 'px').style('left', position.left + 'px')
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}
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setTimeout(function () {
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setTickPosition('y', 0, -5, 8)
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setTickPosition('y', 1, -3)
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setTickPosition('x', 0, 3, 20)
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setTickPosition('x', 1, 3, -10)
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// TODO: Confirm the below constants work with all data sets and screen sizes
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d3.select('.c3-axis-x-label').attr('transform', 'translate(0,-15)')
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d3.select('.c3-axis-y-label').attr('transform', 'translate(32, 2) rotate(-90)')
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d3.select('.c3-xgrid-focus line').attr('y2', 98)
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d3.select('.c3-chart').on('mouseout', () => {
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const overLayedCircle = d3.select('#overlayed-circle')
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if (!overLayedCircle.empty()) {
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overLayedCircle.remove()
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}
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d3.select('.c3-tooltip-container').style('display', 'none !important')
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})
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const chartRect = d3.select('.c3-areas-data1')
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const { x: chartXStart, width: chartWidth } = chartRect.node().getBoundingClientRect()
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d3.select('.c3-chart').on('click', () => {
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const overlayedCircle = d3.select('#overlayed-circle')
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const numberOfValues = chart.internal.data.xs.data1.length
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const { x: circleX, y: circleY } = overlayedCircle.node().getBoundingClientRect()
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chart.internal.selectPoint({
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x: circleX - chartXStart,
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value: circleY - 1.5,
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id: 'data1',
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index: numberOfValues,
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name: 'data1',
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}, numberOfValues)
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})
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d3.select('.c3-chart').on('mousemove', function () {
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const chartMouseXPos = d3.event.clientX - chartXStart
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const posPercentile = chartMouseXPos / chartWidth
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const currentPosValue = (gasPrices[gasPrices.length - 1] - gasPrices[0]) * posPercentile + gasPrices[0]
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const closestLowerValueIndex = gasPrices.findIndex((e, i, a) => {
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return e <= currentPosValue && a[i + 1] >= currentPosValue
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})
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const closestLowerValue = gasPrices[closestLowerValueIndex]
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const estimatedClosestLowerTimeEstimate = estimatedTimes[closestLowerValueIndex]
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const closestHigherValueIndex = gasPrices.findIndex((e, i, a) => {
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return e > currentPosValue
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})
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const closestHigherValue = gasPrices[closestHigherValueIndex]
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if (!closestHigherValue || !closestLowerValue) {
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const overLayedCircle = d3.select('#overlayed-circle')
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if (!overLayedCircle.empty()) {
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overLayedCircle.remove()
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}
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d3.select('.c3-tooltip-container').style('display', 'none !important')
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chart.internal.hideXGridFocus()
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return
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}
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const estimatedClosestHigherTimeEstimate = estimatedTimes[closestHigherValueIndex]
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const slope = (estimatedClosestHigherTimeEstimate - estimatedClosestLowerTimeEstimate) / (closestHigherValue - closestLowerValue)
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const newTimeEstimate = -1 * (slope * (closestHigherValue - currentPosValue) - estimatedClosestHigherTimeEstimate)
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const newEstimatedTimes = [...estimatedTimes, newTimeEstimate]
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chart.internal.overlayPoint({
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x: currentPosValue,
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value: newTimeEstimate,
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id: 'data1',
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index: newEstimatedTimes.length,
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name: 'data1',
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}, newEstimatedTimes.length)
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chart.internal.showTooltip([{
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x: currentPosValue,
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value: newTimeEstimate,
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id: 'data1',
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index: newEstimatedTimes.length,
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name: 'data1',
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}], chartRect._groups[0])
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chart.internal.showXGridFocus([{
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x: currentPosValue,
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value: newTimeEstimate,
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id: 'data1',
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index: newEstimatedTimes.length,
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name: 'data1',
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}])
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})
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}, 0)
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}
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componentDidMount () {
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this.renderChart(this.props.priceAndTimeEstimates)
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}
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render () {
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return (
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<div className="gas-price-chart" id="container">
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<div className="gas-price-chart__root" id="chart"></div>
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</div>
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)
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}
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}
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