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| 1 | +/* eslint-disable arrow-body-style */ |
| 2 | +/* eslint-disable max-len */ |
| 3 | +/* eslint-disable @typescript-eslint/no-explicit-any */ |
| 4 | +/* eslint-disable @typescript-eslint/explicit-module-boundary-types */ |
| 5 | +/* eslint-disable @typescript-eslint/ban-types */ |
| 6 | + |
| 7 | +import React, { useRef, useState, useEffect } from 'react'; |
| 8 | +import * as d3 from 'd3'; |
| 9 | + |
| 10 | +const Map = (props) => { |
| 11 | + const { snapshot } = props; |
| 12 | + console.log('MAP SNAPSHOT', snapshot); |
| 13 | + |
| 14 | + // set the heights and width of the tree to be passed into treeMap function |
| 15 | + const width: number = 600; |
| 16 | + const height: number = 1100; |
| 17 | + |
| 18 | + // this state allows the canvas to stay at the zoom level on multiple re-renders |
| 19 | + const [{ x, y, k }, setZoomState]: any = useState({ x: 0, y: 0, k: 0 }); |
| 20 | + |
| 21 | + useEffect(() => { |
| 22 | + setZoomState(d3.zoomTransform(d3.select('#canvas').node())); |
| 23 | + }, [snapshot]); |
| 24 | + |
| 25 | + // this only clears the canvas if Visualizer is already rendered on the extension |
| 26 | + useEffect(() => { |
| 27 | + document.getElementById('canvas').innerHTML = ''; |
| 28 | + |
| 29 | + // creating the main svg container for d3 elements |
| 30 | + const svgContainer: any = d3 |
| 31 | + .select('#canvas') |
| 32 | + .attr('width', width) |
| 33 | + .attr('height', height); |
| 34 | + |
| 35 | + // creating a pseudo-class for reusability |
| 36 | + const g: any = svgContainer |
| 37 | + .append('g') |
| 38 | + .attr('transform', `translate(${x}, ${y}), scale(${k})`); // sets the canvas to the saved zoomState |
| 39 | + |
| 40 | + // atomState is the object that is passed into d3.hierarchy |
| 41 | + const childrenArr = []; |
| 42 | + if (snapshot.children[0].state.hooksState) { |
| 43 | + snapshot.children[0].state.hooksState[0].undefined.forEach((el) => |
| 44 | + childrenArr.push(el) |
| 45 | + ); |
| 46 | + } |
| 47 | + console.log(childrenArr); |
| 48 | + |
| 49 | + const atomState: any = { |
| 50 | + name: ' Root', |
| 51 | + // pass in parsed data here |
| 52 | + // call the helper function passing in the most recent snapshot |
| 53 | + children: childrenArr, |
| 54 | + }; |
| 55 | + |
| 56 | + console.log('STATE', atomState); |
| 57 | + // creating the tree map |
| 58 | + const treeMap: any = d3.tree().nodeSize([width, height]); |
| 59 | + |
| 60 | + // creating the nodes of the tree |
| 61 | + // pass |
| 62 | + const hierarchyNodes: any = d3.hierarchy(atomState); |
| 63 | + |
| 64 | + // calling the tree function with nodes created from data |
| 65 | + const finalMap: any = treeMap(hierarchyNodes); |
| 66 | + |
| 67 | + // renders a flat array of objects containing all parent-child links |
| 68 | + // renders the paths onto the component |
| 69 | + let paths: any = finalMap.links(); |
| 70 | + console.log('PATHS', paths); |
| 71 | + |
| 72 | + // this creates the paths to each atom and its contents in the tree |
| 73 | + g.append('g') |
| 74 | + .attr('fill', 'none') |
| 75 | + .attr('stroke', '#646464') |
| 76 | + .attr('stroke-width', 5) |
| 77 | + .selectAll('path') |
| 78 | + .data(paths) |
| 79 | + .enter() |
| 80 | + .append('path') |
| 81 | + .attr( |
| 82 | + 'd', |
| 83 | + d3 |
| 84 | + .linkHorizontal() |
| 85 | + .x((d: any) => d.y) |
| 86 | + .y((d: any) => d.x) |
| 87 | + ); |
| 88 | + |
| 89 | + // returns a flat array of objects containing all the nodes and their information |
| 90 | + // renders nodes onto the canvas |
| 91 | + let nodes: any = hierarchyNodes.descendants(); |
| 92 | + |
| 93 | + // const node is used to create all the nodes |
| 94 | + // this segment places all the nodes on the canvas |
| 95 | + const node: any = g |
| 96 | + .append('g') |
| 97 | + .attr('stroke-linejoin', 'round') // no clue what this does |
| 98 | + .attr('stroke-width', 1) |
| 99 | + .selectAll('g') |
| 100 | + .data(nodes) |
| 101 | + .enter() |
| 102 | + .append('g') |
| 103 | + .attr('transform', (d: any) => `translate(${d.y}, ${d.x})`) |
| 104 | + .attr('class', 'atomNodes'); |
| 105 | + |
| 106 | + // for each node that got created, append a circle element |
| 107 | + node.append('circle').attr('fill', '#c300ff').attr('r', 50); |
| 108 | + |
| 109 | + // for each node that got created, append a text element that displays the name of the node |
| 110 | + node |
| 111 | + .append('text') |
| 112 | + .attr('dy', '.31em') |
| 113 | + .attr('x', (d: any) => (d.children ? -75 : 75)) |
| 114 | + .attr('text-anchor', (d: any) => (d.children ? 'end' : 'start')) |
| 115 | + .text((d: any) => d.data.name) |
| 116 | + .style('font-size', `2rem`) |
| 117 | + .style('fill', 'white') |
| 118 | + .clone(true) |
| 119 | + .lower() |
| 120 | + .attr('stroke', '#646464') |
| 121 | + .attr('stroke-width', 2); |
| 122 | + |
| 123 | + console.log('142'); |
| 124 | + // adding a mouseOver event handler to each node |
| 125 | + // only add popup text on nodes with no children |
| 126 | + // display the data in the node on hover |
| 127 | + node.on('mouseover', function (d: any, i: number): any { |
| 128 | + if (!d.children) { |
| 129 | + d3.select(this) |
| 130 | + .append('text') |
| 131 | + .text(JSON.stringify(d.data, undefined, 2)) |
| 132 | + .style('fill', 'white') |
| 133 | + .attr('x', 75) |
| 134 | + .attr('y', 60) |
| 135 | + .style('font-size', '3rem') |
| 136 | + .attr('stroke', '#646464') |
| 137 | + .attr('id', `popup${i}`); |
| 138 | + } |
| 139 | + }); |
| 140 | + |
| 141 | + // add mouseOut event handler that removes the popup text |
| 142 | + node.on('mouseout', function (d: any, i: number): any { |
| 143 | + d3.select(`#popup${i}`).remove(); |
| 144 | + }); |
| 145 | + |
| 146 | + // allows the canvas to be draggable |
| 147 | + node.call( |
| 148 | + d3 |
| 149 | + .drag() |
| 150 | + .on('start', dragStarted) |
| 151 | + .on('drag', dragged) |
| 152 | + .on('end', dragEnded) |
| 153 | + ); |
| 154 | + |
| 155 | + // allows the canvas to be zoom-able |
| 156 | + svgContainer.call( |
| 157 | + d3 |
| 158 | + .zoom() |
| 159 | + .extent([ |
| 160 | + [0, 0], |
| 161 | + [width, height], |
| 162 | + ]) |
| 163 | + .scaleExtent([0, 8]) |
| 164 | + .on('zoom', zoomed) |
| 165 | + ); |
| 166 | + |
| 167 | + // helper functions that help with dragging functionality |
| 168 | + function dragStarted(): any { |
| 169 | + d3.select(this).raise(); |
| 170 | + g.attr('cursor', 'grabbing'); |
| 171 | + } |
| 172 | + |
| 173 | + function dragged(d: any): any { |
| 174 | + d3.select(this) |
| 175 | + .attr('dx', (d.x = d3.event.x)) |
| 176 | + .attr('dy', (d.y = d3.event.y)); |
| 177 | + } |
| 178 | + |
| 179 | + function dragEnded(): any { |
| 180 | + g.attr('cursor', 'grab'); |
| 181 | + } |
| 182 | + |
| 183 | + // helper function that allows for zooming |
| 184 | + function zoomed(): any { |
| 185 | + g.attr('transform', d3.event.transform); |
| 186 | + } |
| 187 | + }); |
| 188 | + |
| 189 | + console.log('208'); |
| 190 | + return ( |
| 191 | + <div data-testid="canvas"> |
| 192 | + <div className="Visualizer"> |
| 193 | + <svg id="canvas"></svg> |
| 194 | + </div> |
| 195 | + </div> |
| 196 | + ); |
| 197 | +}; |
| 198 | + |
| 199 | +export default Map; |
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