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import { selection, select } from 'd3-selection';
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import { max, min, sum, cumsum } from 'd3-array';
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import { tree, stratify } from 'd3-hierarchy';
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import { zoom, zoomIdentity } from 'd3-zoom';
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import { flextree } from 'd3-flextree';
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import { linkHorizontal } from 'd3-shape';
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const d3 = {
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selection,
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select,
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max,
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min,
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sum,
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cumsum,
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tree,
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stratify,
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zoom,
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zoomIdentity,
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linkHorizontal,
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};
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export class OrgChart {
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constructor() {
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// Exposed variables
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const attrs = {
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id: `ID${Math.floor(Math.random() * 1000000)}`, // Id for event handlings
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firstDraw: true,
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svgWidth: 800,
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svgHeight: window.innerHeight - 100,
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scaleExtent: [0.001, 20],
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container: 'body',
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defaultTextFill: '#2C3E50',
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defaultFont: 'Helvetica',
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ctx: document.createElement('canvas').getContext('2d'),
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data: null,
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duration: 400,
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setActiveNodeCentered: true,
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expandLevel: 0,
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compact: true,
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rootMargin: 40,
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nodeDefaultBackground: 'none',
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connections: [],
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lastTransform: { x: 0, y: 0, k: 1 },
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nodeId: (d) => d.nodeId || d.id,
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parentNodeId: (d) => d.parentNodeId || d.parentId,
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backgroundColor: 'none',
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zoomBehavior: null,
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defs: function (state, visibleConnections) {
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return `<defs>
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${visibleConnections
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.map((conn) => {
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const labelWidth = this.getTextWidth(conn.label, {
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ctx: state.ctx,
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fontSize: 2,
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defaultFont: state.defaultFont,
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});
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return `
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<marker id="${conn.from + '_' + conn.to}" refX="${
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conn._source.x < conn._target.x ? -7 : 7
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}" refY="5" markerWidth="500" markerHeight="500" orient="${
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conn._source.x < conn._target.x
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? 'auto'
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: 'auto-start-reverse'
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}" >
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<rect rx=0.5 width=${
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conn.label ? labelWidth + 3 : 0
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} height=3 y=1 fill="#152785"></rect>
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<text font-size="2px" x=1 fill="white" y=3>${
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conn.label || ''
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}</text>
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</marker>
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<marker id="arrow-${
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conn.from + '_' + conn.to
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}" markerWidth="500" markerHeight="500" refY="2" refX="1" orient="${
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conn._source.x < conn._target.x
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? 'auto'
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: 'auto-start-reverse'
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}" >
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<path transform="translate(0)" d='M0,0 V4 L2,2 Z' fill='#152785' />
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</marker>
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`;
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})
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.join('')}
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</defs>
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`;
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},
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connectionsUpdate: function (d, i, arr) {
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d3.select(this)
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.attr('stroke', (d) => '#152785')
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.attr('stroke-linecap', 'round')
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.attr('stroke-width', (d) => '5')
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.attr('pointer-events', 'none')
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.attr('marker-start', (d) => `url(#${d.from + '_' + d.to})`)
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.attr('marker-end', (d) => `url(#arrow-${d.from + '_' + d.to})`);
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},
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linkUpdate: function (d, i, arr) {
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d3.select(this)
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.attr('stroke', (d) =>
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d.data._upToTheRootHighlighted ? '#152785' : 'lightgray',
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)
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.attr('stroke-width', (d) =>
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d.data._upToTheRootHighlighted ? 5 : 2,
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);
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if (d.data._upToTheRootHighlighted) {
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d3.select(this).raise();
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}
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},
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nodeUpdate: function (d, i, arr) {
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d3.select(this)
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.select('.node-rect')
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.attr('stroke', (d) =>
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d.data._highlighted || d.data._upToTheRootHighlighted
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? '#152785'
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: 'none',
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)
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.attr(
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'stroke-width',
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d.data._highlighted || d.data._upToTheRootHighlighted ? 10 : 1,
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);
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},
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nodeWidth: (d3Node) => 250,
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nodeHeight: (d) => 150,
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siblingsMargin: (d3Node) => 20,
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childrenMargin: (d) => 60,
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neightbourMargin: (n1, n2) => 80,
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compactMarginPair: (d) => 100,
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compactMarginBetween: (d3Node) => 20,
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onNodeClick: (d) => d,
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linkGroupArc: d3
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.linkHorizontal()
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.x((d) => d.x)
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.y((d) => d.y),
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// ({ source, target }) => {
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// return
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// return `M ${source.x} , ${source.y} Q ${(source.x + target.x) / 2 + 100},${source.y-100} ${target.x}, ${target.y}`;
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// },
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nodeContent: (
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d,
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) => `<div style="padding:5px;font-size:10px;">Sample Node(id=${d.id}), override using <br/> <br/>
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<code>chart<br/>
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.nodeContent({data}=>{ <br/>
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return '' // Custom HTML <br/>
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})</code>
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<br/> <br/>
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Or check different <a href="https://github.com/bumbeishvili/org-chart#jump-to-examples" target="_blank">layout examples</a>
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</div>`,
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layout: 'top', // top, left,right, bottom
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buttonContent: ({ node, state }) => {
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const icons = {
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left: (d) =>
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d
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? `<div style="margin-top:-10px;line-height:1.2;font-size:25px;height:22px">‹</div>`
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: `<div style="margin-top:-10px;font-size:25px;height:23px">›</div>`,
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bottom: (d) =>
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d
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? `<div style="margin-top:-20px;font-size:25px">ˬ</div>`
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: `<div style="margin-top:0px;line-height:1.2;height:11px;font-size:25px">ˆ</div>`,
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right: (d) =>
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d
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? `<div style="margin-top:-10px;font-size:25px;height:23px">›</div>`
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: `<div style="margin-top:-10px;line-height:1.2;font-size:25px;height:22px">‹</div>`,
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top: (d) =>
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d
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? `<div style="margin-top:0px;line-height:1.2;height:11px;font-size:25px">ˆ</div>`
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: `<div style="margin-top:-20px;font-size:25px">ˬ</div>`,
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};
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return `<div style="border-radius:3px;padding:3px;font-size:10px;margin:auto auto;background-color:lightgray"> ${icons[
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state.layout
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](node.children)} </div>`;
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},
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layoutBindings: {
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left: {
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nodeLeftX: (node) => node.width / 0.4,
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nodeRightX: (node) => node.width,
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nodeTopY: (node) => -node.height / 2,
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nodeBottomY: (node) => node.height / 2,
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nodeJoinX: (node) => node.x + node.width,
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nodeJoinY: (node) => node.y - node.height / 2,
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linkJoinX: (node) => node.x + node.width,
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linkJoinY: (node) => node.y,
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linkX: (node) => node.x,
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linkY: (node) => node.y,
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linkCompactXStart: (node) => node.x + node.width / 2, //node.x + (node.compactEven ? node.width / 2 : -node.width / 2),
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linkCompactYStart: (node) =>
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node.y + (node.compactEven ? node.height / 2 : -node.height / 2),
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compactLinkMidX: (node, state) => node.firstCompactNode.x, // node.firstCompactNode.x + node.firstCompactNode.flexCompactDim[0] / 4 + state.compactMarginPair(node) / 4,
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compactLinkMidY: (node, state) =>
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node.firstCompactNode.y +
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node.firstCompactNode.flexCompactDim[0] / 4 +
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state.compactMarginPair(node) / 4,
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linkParentX: (node) => node.parent.x + node.parent.width,
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linkParentY: (node) => node.parent.y,
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buttonX: (node) => node.width,
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buttonY: (node) => node.height / 2,
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centerTransform: ({ root, rootMargin, centerY, scale, centerX }) =>
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`translate(${rootMargin},${centerY}) scale(${scale})`,
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compactDimension: {
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sizeColumn: (node) => node.height,
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sizeRow: (node) => node.width,
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reverse: (arr) => arr.slice().reverse(),
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},
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nodeFlexSize: ({
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height,
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width,
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siblingsMargin,
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childrenMargin,
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state,
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node,
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}) => {
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if (state.compact && node.flexCompactDim) {
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const result = [node.flexCompactDim[0], node.flexCompactDim[1]];
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return result;
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}
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return [height + siblingsMargin, width + childrenMargin];
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},
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zoomTransform: ({ centerY, scale }) =>
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`translate(${0},${centerY}) scale(${scale})`,
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diagonal: this.hdiagonal.bind(this),
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swap: (d) => {
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const x = d.x;
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d.x = d.y;
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d.y = x;
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},
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nodeUpdateTransform: ({ x, y, width, height }) =>
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`translate(${x},${y - height / 2})`,
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},
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top: {
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nodeLeftX: (node) => -node.width / 2,
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nodeRightX: (node) => node.width / 2,
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//nodeTopY: (node) => 0,
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nodeTopY: (node) => node.height / 0.4,
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nodeBottomY: (node) => node.height,
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nodeJoinX: (node) => node.x - node.width / 2,
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nodeJoinY: (node) => node.y + node.height,
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linkJoinX: (node) => node.x,
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linkJoinY: (node) => node.y + node.height,
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linkCompactXStart: (node) =>
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node.x + (node.compactEven ? node.width / 2 : -node.width / 2),
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linkCompactYStart: (node) => node.y + node.height / 2,
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compactLinkMidX: (node, state) =>
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node.firstCompactNode.x +
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node.firstCompactNode.flexCompactDim[0] / 4 +
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state.compactMarginPair(node) / 4,
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compactLinkMidY: (node) => node.firstCompactNode.y,
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compactDimension: {
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sizeColumn: (node) => node.width,
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sizeRow: (node) => node.height,
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reverse: (arr) => arr,
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},
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linkX: (node) => node.x,
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linkY: (node) => node.y,
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linkParentX: (node) => node.parent.x,
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linkParentY: (node) => node.parent.y + node.parent.height,
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buttonX: (node) => node.width / 2,
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buttonY: (node) => node.height,
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centerTransform: ({ root, rootMargin, centerY, scale, centerX }) =>
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`translate(${centerX},${rootMargin}) scale(${scale})`,
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nodeFlexSize: ({
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height,
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width,
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siblingsMargin,
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childrenMargin,
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state,
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node,
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compactViewIndex,
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}) => {
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if (state.compact && node.flexCompactDim) {
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const result = [node.flexCompactDim[0], node.flexCompactDim[1]];
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return result;
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}
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return [width + siblingsMargin, height + childrenMargin];
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},
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zoomTransform: ({ centerX, scale }) =>
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`translate(${centerX},0}) scale(${scale})`,
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diagonal: this.diagonal.bind(this),
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swap: (d) => {},
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nodeUpdateTransform: ({ x, y, width, height }) =>
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`translate(${x - width / 2},${y})`,
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},
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bottom: {
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nodeLeftX: (node) => -node.width / 2,
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nodeRightX: (node) => node.width / 2,
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nodeTopY: (node) => -node.height,
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nodeBottomY: (node) => 0,
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nodeJoinX: (node) => node.x - node.width / 2,
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nodeJoinY: (node) => node.y - node.height - node.height,
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linkJoinX: (node) => node.x,
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linkJoinY: (node) => node.y - node.height,
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linkCompactXStart: (node) =>
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node.x + (node.compactEven ? node.width / 2 : -node.width / 2),
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linkCompactYStart: (node) => node.y - node.height / 2,
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compactLinkMidX: (node, state) =>
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node.firstCompactNode.x +
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node.firstCompactNode.flexCompactDim[0] / 4 +
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state.compactMarginPair(node) / 4,
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compactLinkMidY: (node) => node.firstCompactNode.y,
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linkX: (node) => node.x,
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linkY: (node) => node.y,
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compactDimension: {
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sizeColumn: (node) => node.width,
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sizeRow: (node) => node.height,
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reverse: (arr) => arr,
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},
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linkParentX: (node) => node.parent.x,
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linkParentY: (node) => node.parent.y - node.parent.height,
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buttonX: (node) => node.width / 2,
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buttonY: (node) => 0,
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centerTransform: ({
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root,
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rootMargin,
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centerY,
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scale,
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centerX,
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chartHeight,
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}) =>
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`translate(${centerX},${chartHeight - rootMargin}) scale(${scale})`,
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nodeFlexSize: ({
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height,
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width,
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siblingsMargin,
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childrenMargin,
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state,
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node,
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}) => {
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if (state.compact && node.flexCompactDim) {
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const result = [node.flexCompactDim[0], node.flexCompactDim[1]];
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return result;
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}
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return [width + siblingsMargin, height + childrenMargin];
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},
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zoomTransform: ({ centerX, scale }) =>
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`translate(${centerX},0}) scale(${scale})`,
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diagonal: this.diagonal.bind(this),
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swap: (d) => {
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d.y = -d.y;
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},
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nodeUpdateTransform: ({ x, y, width, height }) =>
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`translate(${x - width / 2},${y - height})`,
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},
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right: {
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nodeLeftX: (node) => -node.width,
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nodeRightX: (node) => 0,
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nodeTopY: (node) => -node.height / 2,
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nodeBottomY: (node) => node.height / 2,
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nodeJoinX: (node) => node.x - node.width - node.width,
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nodeJoinY: (node) => node.y - node.height / 2,
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linkJoinX: (node) => node.x - node.width,
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linkJoinY: (node) => node.y,
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linkX: (node) => node.x,
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linkY: (node) => node.y,
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linkParentX: (node) => node.parent.x - node.parent.width,
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linkParentY: (node) => node.parent.y,
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buttonX: (node) => 0,
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buttonY: (node) => node.height / 2,
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linkCompactXStart: (node) => node.x - node.width / 2, //node.x + (node.compactEven ? node.width / 2 : -node.width / 2),
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linkCompactYStart: (node) =>
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node.y + (node.compactEven ? node.height / 2 : -node.height / 2),
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compactLinkMidX: (node, state) => node.firstCompactNode.x, // node.firstCompactNode.x + node.firstCompactNode.flexCompactDim[0] / 4 + state.compactMarginPair(node) / 4,
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compactLinkMidY: (node, state) =>
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node.firstCompactNode.y +
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node.firstCompactNode.flexCompactDim[0] / 4 +
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state.compactMarginPair(node) / 4,
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centerTransform: ({
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root,
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rootMargin,
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centerY,
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scale,
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centerX,
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chartWidth,
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}) =>
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`translate(${chartWidth - rootMargin},${centerY}) scale(${scale})`,
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nodeFlexSize: ({
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height,
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width,
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siblingsMargin,
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childrenMargin,
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state,
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node,
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}) => {
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if (state.compact && node.flexCompactDim) {
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const result = [node.flexCompactDim[0], node.flexCompactDim[1]];
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return result;
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}
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|
return [height + siblingsMargin, width + childrenMargin];
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|
|
},
|
|
|
compactDimension: {
|
|
|
sizeColumn: (node) => node.height,
|
|
|
sizeRow: (node) => node.width,
|
|
|
reverse: (arr) => arr.slice().reverse(),
|
|
|
},
|
|
|
zoomTransform: ({ centerY, scale }) =>
|
|
|
`translate(${0},${centerY}) scale(${scale})`,
|
|
|
diagonal: this.hdiagonal.bind(this),
|
|
|
swap: (d) => {
|
|
|
const x = d.x;
|
|
|
d.x = -d.y;
|
|
|
d.y = x;
|
|
|
},
|
|
|
nodeUpdateTransform: ({ x, y, width, height }) =>
|
|
|
`translate(${x - width},${y - height / 2})`,
|
|
|
},
|
|
|
},
|
|
|
};
|
|
|
|
|
|
this.getChartState = () => attrs;
|
|
|
|
|
|
// Dynamically set getter and setter functions for Chart class
|
|
|
Object.keys(attrs).forEach((key) => {
|
|
|
//@ts-ignore
|
|
|
this[key] = function (_) {
|
|
|
if (!arguments.length) {
|
|
|
return attrs[key];
|
|
|
} else {
|
|
|
attrs[key] = _;
|
|
|
}
|
|
|
return this;
|
|
|
};
|
|
|
});
|
|
|
|
|
|
this.initializeEnterExitUpdatePattern();
|
|
|
}
|
|
|
|
|
|
initializeEnterExitUpdatePattern() {
|
|
|
d3.selection.prototype.patternify = function (params) {
|
|
|
var container = this;
|
|
|
var selector = params.selector;
|
|
|
var elementTag = params.tag;
|
|
|
var data = params.data || [selector];
|
|
|
|
|
|
// Pattern in action
|
|
|
var selection = container.selectAll('.' + selector).data(data, (d, i) => {
|
|
|
if (typeof d === 'object') {
|
|
|
if (d.id) {
|
|
|
return d.id;
|
|
|
}
|
|
|
}
|
|
|
return i;
|
|
|
});
|
|
|
selection.exit().remove();
|
|
|
selection = selection.enter().append(elementTag).merge(selection);
|
|
|
selection.attr('class', selector);
|
|
|
return selection;
|
|
|
};
|
|
|
}
|
|
|
|
|
|
// This method retrieves passed node's children IDs (including node)
|
|
|
getNodeChildren({ data, children, _children }, nodeStore) {
|
|
|
// Store current node ID
|
|
|
nodeStore.push(data);
|
|
|
|
|
|
// Loop over children and recursively store descendants id (expanded nodes)
|
|
|
if (children) {
|
|
|
children.forEach((d) => {
|
|
|
this.getNodeChildren(d, nodeStore);
|
|
|
});
|
|
|
}
|
|
|
|
|
|
// Loop over _children and recursively store descendants id (collapsed nodes)
|
|
|
if (_children) {
|
|
|
_children.forEach((d) => {
|
|
|
this.getNodeChildren(d, nodeStore);
|
|
|
});
|
|
|
}
|
|
|
|
|
|
// Return result
|
|
|
return nodeStore;
|
|
|
}
|
|
|
|
|
|
// This method can be invoked via chart.setZoomFactor API, it zooms to particulat scale
|
|
|
initialZoom(zoomLevel) {
|
|
|
const attrs = this.getChartState();
|
|
|
attrs.lastTransform.k = zoomLevel;
|
|
|
return this;
|
|
|
}
|
|
|
|
|
|
render() {
|
|
|
//InnerFunctions which will update visuals
|
|
|
const attrs = this.getChartState();
|
|
|
if (!attrs.data || attrs.data.length == 0) {
|
|
|
return this;
|
|
|
}
|
|
|
|
|
|
//Drawing containers
|
|
|
const container = d3.select(attrs.container);
|
|
|
const containerRect = container.node().getBoundingClientRect();
|
|
|
if (containerRect.width > 0) attrs.svgWidth = containerRect.width;
|
|
|
|
|
|
//Calculated properties
|
|
|
const calc = {
|
|
|
id: `ID${Math.floor(Math.random() * 1000000)}`, // id for event handlings,
|
|
|
chartWidth: attrs.svgWidth,
|
|
|
chartHeight: attrs.svgHeight,
|
|
|
};
|
|
|
attrs.calc = calc;
|
|
|
|
|
|
// Calculate max node depth (it's needed for layout heights calculation)
|
|
|
calc.centerX = calc.chartWidth / 2;
|
|
|
calc.centerY = calc.chartHeight / 2;
|
|
|
|
|
|
// ******************* BEHAVIORS **********************
|
|
|
if (attrs.firstDraw) {
|
|
|
const behaviors = {
|
|
|
zoom: null,
|
|
|
};
|
|
|
|
|
|
// Get zooming function
|
|
|
behaviors.zoom = d3
|
|
|
.zoom()
|
|
|
.on('zoom', (event, d) => {
|
|
|
this.zoomed(event, d);
|
|
|
})
|
|
|
.scaleExtent(attrs.scaleExtent);
|
|
|
attrs.zoomBehavior = behaviors.zoom;
|
|
|
}
|
|
|
|
|
|
//****************** ROOT node work ************************
|
|
|
|
|
|
attrs.flexTreeLayout = flextree({
|
|
|
nodeSize: (node) => {
|
|
|
const width = attrs.nodeWidth(node);
|
|
|
const height = attrs.nodeHeight(node);
|
|
|
const siblingsMargin = attrs.siblingsMargin(node);
|
|
|
const childrenMargin = attrs.childrenMargin(node);
|
|
|
return attrs.layoutBindings[attrs.layout].nodeFlexSize({
|
|
|
state: attrs,
|
|
|
node: node,
|
|
|
width,
|
|
|
height,
|
|
|
siblingsMargin,
|
|
|
childrenMargin,
|
|
|
});
|
|
|
},
|
|
|
}).spacing((nodeA, nodeB) =>
|
|
|
nodeA.parent == nodeB.parent ? 0 : attrs.neightbourMargin(nodeA, nodeB),
|
|
|
);
|
|
|
|
|
|
this.setLayouts({ expandNodesFirst: false });
|
|
|
|
|
|
// ************************* DRAWING **************************
|
|
|
//Add svg
|
|
|
const svg = container
|
|
|
.patternify({
|
|
|
tag: 'svg',
|
|
|
selector: 'svg-chart-container',
|
|
|
})
|
|
|
.style('background-color', attrs.backgroundColor)
|
|
|
.attr('width', attrs.svgWidth)
|
|
|
.attr('height', attrs.svgHeight)
|
|
|
.attr('font-family', attrs.defaultFont);
|
|
|
if (attrs.firstDraw) {
|
|
|
svg
|
|
|
.call(attrs.zoomBehavior)
|
|
|
.on('dblclick.zoom', null)
|
|
|
.attr('cursor', 'move');
|
|
|
}
|
|
|
|
|
|
attrs.svg = svg;
|
|
|
|
|
|
//Add container g element
|
|
|
const chart = svg.patternify({
|
|
|
tag: 'g',
|
|
|
selector: 'chart',
|
|
|
});
|
|
|
|
|
|
// Add one more container g element, for better positioning controls
|
|
|
attrs.centerG = chart.patternify({
|
|
|
tag: 'g',
|
|
|
selector: 'center-group',
|
|
|
});
|
|
|
|
|
|
attrs.linksWrapper = attrs.centerG.patternify({
|
|
|
tag: 'g',
|
|
|
selector: 'links-wrapper',
|
|
|
});
|
|
|
|
|
|
attrs.nodesWrapper = attrs.centerG.patternify({
|
|
|
tag: 'g',
|
|
|
selector: 'nodes-wrapper',
|
|
|
});
|
|
|
|
|
|
attrs.connectionsWrapper = attrs.centerG.patternify({
|
|
|
tag: 'g',
|
|
|
selector: 'connections-wrapper',
|
|
|
});
|
|
|
|
|
|
attrs.defsWrapper = svg.patternify({
|
|
|
tag: 'g',
|
|
|
selector: 'defs-wrapper',
|
|
|
});
|
|
|
|
|
|
if (attrs.firstDraw) {
|
|
|
attrs.centerG.attr('transform', () => {
|
|
|
return attrs.layoutBindings[attrs.layout].centerTransform({
|
|
|
centerX: calc.centerX,
|
|
|
centerY: calc.centerY,
|
|
|
scale: attrs.lastTransform.k,
|
|
|
rootMargin: attrs.rootMargin,
|
|
|
root: attrs.root,
|
|
|
chartHeight: calc.chartHeight,
|
|
|
chartWidth: calc.chartWidth,
|
|
|
});
|
|
|
});
|
|
|
}
|
|
|
|
|
|
attrs.chart = chart;
|
|
|
|
|
|
// Display tree contenrs
|
|
|
this.update(attrs.root);
|
|
|
|
|
|
//######################################### UTIL FUNCS ##################################
|
|
|
// This function restyles foreign object elements ()
|
|
|
|
|
|
d3.select(window).on(`resize.${attrs.id}`, () => {
|
|
|
const containerRect = d3
|
|
|
.select(attrs.container)
|
|
|
.node()
|
|
|
.getBoundingClientRect();
|
|
|
attrs.svg.attr('width', containerRect.width);
|
|
|
});
|
|
|
|
|
|
if (attrs.firstDraw) {
|
|
|
attrs.firstDraw = false;
|
|
|
}
|
|
|
|
|
|
return this;
|
|
|
}
|
|
|
|
|
|
// This function can be invoked via chart.addNode API, and it adds node in tree at runtime
|
|
|
addNode(obj) {
|
|
|
const attrs = this.getChartState();
|
|
|
const nodeFound = attrs.allNodes.filter(
|
|
|
({ data }) => attrs.nodeId(data) === attrs.nodeId(obj),
|
|
|
)[0];
|
|
|
const parentFound = attrs.allNodes.filter(
|
|
|
({ data }) => attrs.nodeId(data) === attrs.parentNodeId(obj),
|
|
|
)[0];
|
|
|
if (nodeFound) {
|
|
|
return this;
|
|
|
}
|
|
|
if (!parentFound) {
|
|
|
return this;
|
|
|
}
|
|
|
if (obj._centered && !obj._expanded) obj._expanded = true;
|
|
|
attrs.data.push(obj);
|
|
|
|
|
|
// Update state of nodes and redraw graph
|
|
|
this.updateNodesState();
|
|
|
|
|
|
return this;
|
|
|
}
|
|
|
|
|
|
addAyncNode(obj) {
|
|
|
const attrs = this.getChartState();
|
|
|
const nodeFound = attrs.allNodes.filter(
|
|
|
({ data }) => attrs.nodeId(data) === attrs.nodeId(obj),
|
|
|
)[0];
|
|
|
const parentFound = attrs.allNodes.filter(
|
|
|
({ data }) => attrs.nodeId(data) === attrs.parentNodeId(obj),
|
|
|
)[0];
|
|
|
if (nodeFound) {
|
|
|
return this;
|
|
|
}
|
|
|
if (!parentFound) {
|
|
|
return this;
|
|
|
}
|
|
|
obj._expanded = true;
|
|
|
attrs.data.push(obj);
|
|
|
|
|
|
// Update state of nodes and redraw graph
|
|
|
this.updateNodesState();
|
|
|
|
|
|
return this;
|
|
|
}
|
|
|
|
|
|
// This function can be invoked via chart.removeNode API, and it removes node from tree at runtime
|
|
|
removeNode(nodeId) {
|
|
|
const attrs = this.getChartState();
|
|
|
const node = attrs.allNodes.filter(
|
|
|
({ data }) => attrs.nodeId(data) == nodeId,
|
|
|
)[0];
|
|
|
if (!node) {
|
|
|
return this;
|
|
|
}
|
|
|
|
|
|
// Remove all node childs
|
|
|
// Retrieve all children nodes ids (including current node itself)
|
|
|
node.descendants().forEach((d) => (d.data._filteredOut = true));
|
|
|
|
|
|
const descendants = this.getNodeChildren(node, [], attrs.nodeId);
|
|
|
descendants.forEach((d) => (d._filtered = true));
|
|
|
|
|
|
// Filter out retrieved nodes and reassign data
|
|
|
attrs.data = attrs.data.filter((d) => !d._filtered);
|
|
|
|
|
|
const updateNodesState = this.updateNodesState.bind(this);
|
|
|
// Update state of nodes and redraw graph
|
|
|
updateNodesState();
|
|
|
|
|
|
return this;
|
|
|
}
|
|
|
|
|
|
groupBy(array, accessor, aggegator) {
|
|
|
const grouped = {};
|
|
|
array.forEach((item) => {
|
|
|
const key = accessor(item);
|
|
|
if (!grouped[key]) {
|
|
|
grouped[key] = [];
|
|
|
}
|
|
|
grouped[key].push(item);
|
|
|
});
|
|
|
|
|
|
Object.keys(grouped).forEach((key) => {
|
|
|
grouped[key] = aggegator(grouped[key]);
|
|
|
});
|
|
|
return Object.entries(grouped);
|
|
|
}
|
|
|
calculateCompactFlexDimensions(root) {
|
|
|
const attrs = this.getChartState();
|
|
|
root.eachBefore((node) => {
|
|
|
node.firstCompact = null;
|
|
|
node.compactEven = null;
|
|
|
node.flexCompactDim = null;
|
|
|
node.firstCompactNode = null;
|
|
|
});
|
|
|
root.eachBefore((node) => {
|
|
|
if (node.children && node.children.length > 1) {
|
|
|
const compactChildren = node.children.filter((d) => !d.children);
|
|
|
if (compactChildren.length < 2) return;
|
|
|
compactChildren.forEach((child, i) => {
|
|
|
if (!i) child.firstCompact = true;
|
|
|
if (i % 2) child.compactEven = false;
|
|
|
else child.compactEven = true;
|
|
|
child.row = Math.floor(i / 2);
|
|
|
});
|
|
|
const evenMaxColumnDimension = d3.max(
|
|
|
compactChildren.filter((d) => d.compactEven),
|
|
|
attrs.layoutBindings[attrs.layout].compactDimension.sizeColumn,
|
|
|
);
|
|
|
const oddMaxColumnDimension = d3.max(
|
|
|
compactChildren.filter((d) => !d.compactEven),
|
|
|
attrs.layoutBindings[attrs.layout].compactDimension.sizeColumn,
|
|
|
);
|
|
|
const columnSize =
|
|
|
Math.max(evenMaxColumnDimension, oddMaxColumnDimension) * 2;
|
|
|
const rowsMapNew = this.groupBy(
|
|
|
compactChildren,
|
|
|
(d) => d.row,
|
|
|
(reducedGroup) =>
|
|
|
d3.max(
|
|
|
reducedGroup,
|
|
|
(d) =>
|
|
|
attrs.layoutBindings[attrs.layout].compactDimension.sizeRow(d) +
|
|
|
attrs.compactMarginBetween(d),
|
|
|
),
|
|
|
);
|
|
|
const rowSize = d3.sum(rowsMapNew.map((v) => v[1]));
|
|
|
compactChildren.forEach((node) => {
|
|
|
node.firstCompactNode = compactChildren[0];
|
|
|
if (node.firstCompact) {
|
|
|
node.flexCompactDim = [
|
|
|
columnSize + attrs.compactMarginPair(node),
|
|
|
rowSize - attrs.compactMarginBetween(node),
|
|
|
];
|
|
|
} else {
|
|
|
node.flexCompactDim = [0, 0];
|
|
|
}
|
|
|
});
|
|
|
node.flexCompactDim = null;
|
|
|
}
|
|
|
});
|
|
|
}
|
|
|
|
|
|
calculateCompactFlexPositions(root) {
|
|
|
const attrs = this.getChartState();
|
|
|
root.eachBefore((node) => {
|
|
|
if (node.children) {
|
|
|
const compactChildren = node.children.filter((d) => d.flexCompactDim);
|
|
|
const fch = compactChildren[0];
|
|
|
if (!fch) return;
|
|
|
compactChildren.forEach((child, i, arr) => {
|
|
|
if (i == 0) fch.x -= fch.flexCompactDim[0] / 2;
|
|
|
if (i & ((i % 2) - 1))
|
|
|
child.x =
|
|
|
fch.x +
|
|
|
fch.flexCompactDim[0] * 0.25 -
|
|
|
attrs.compactMarginPair(child) / 4;
|
|
|
else if (i)
|
|
|
child.x =
|
|
|
fch.x +
|
|
|
fch.flexCompactDim[0] * 0.75 +
|
|
|
attrs.compactMarginPair(child) / 4;
|
|
|
});
|
|
|
const centerX = fch.x + fch.flexCompactDim[0] * 0.5;
|
|
|
fch.x =
|
|
|
fch.x +
|
|
|
fch.flexCompactDim[0] * 0.25 -
|
|
|
attrs.compactMarginPair(fch) / 4;
|
|
|
const offsetX = node.x - centerX;
|
|
|
if (Math.abs(offsetX) < 10) {
|
|
|
compactChildren.forEach((d) => (d.x += offsetX));
|
|
|
}
|
|
|
|
|
|
const rowsMapNew = this.groupBy(
|
|
|
compactChildren,
|
|
|
(d) => d.row,
|
|
|
(reducedGroup) =>
|
|
|
d3.max(reducedGroup, (d) =>
|
|
|
attrs.layoutBindings[attrs.layout].compactDimension.sizeRow(d),
|
|
|
),
|
|
|
);
|
|
|
const cumSum = d3.cumsum(
|
|
|
rowsMapNew.map((d) => d[1] + attrs.compactMarginBetween(d)),
|
|
|
);
|
|
|
compactChildren.forEach((node, i) => {
|
|
|
if (node.row) {
|
|
|
node.y = fch.y + cumSum[node.row - 1];
|
|
|
} else {
|
|
|
node.y = fch.y;
|
|
|
}
|
|
|
});
|
|
|
}
|
|
|
});
|
|
|
}
|
|
|
|
|
|
// This function basically redraws visible graph, based on nodes state
|
|
|
update({ x0, y0, x = 0, y = 0, width, height }, type) {
|
|
|
const attrs = this.getChartState();
|
|
|
const calc = attrs.calc;
|
|
|
|
|
|
if (attrs.compact) {
|
|
|
this.calculateCompactFlexDimensions(attrs.root);
|
|
|
}
|
|
|
|
|
|
// Assigns the x and y position for the nodes
|
|
|
const treeData = attrs.flexTreeLayout(attrs.root);
|
|
|
|
|
|
// Reassigns the x and y position for the based on the compact layout
|
|
|
if (attrs.compact) {
|
|
|
this.calculateCompactFlexPositions(attrs.root);
|
|
|
}
|
|
|
|
|
|
const nodes = treeData.descendants();
|
|
|
|
|
|
// console.table(nodes.map(d => ({ x: d.x, y: d.y, width: d.width, height: d.height, flexCompactDim: d.flexCompactDim + "" })))
|
|
|
|
|
|
// Get all links
|
|
|
const links = treeData.descendants().slice(1);
|
|
|
nodes.forEach(attrs.layoutBindings[attrs.layout].swap);
|
|
|
|
|
|
// Connections
|
|
|
const connections = attrs.connections;
|
|
|
const allNodesMap = {};
|
|
|
attrs.allNodes.forEach((d) => (allNodesMap[attrs.nodeId(d.data)] = d));
|
|
|
|
|
|
const visibleNodesMap = {};
|
|
|
nodes.forEach((d) => (visibleNodesMap[attrs.nodeId(d.data)] = d));
|
|
|
|
|
|
connections.forEach((connection) => {
|
|
|
const source = allNodesMap[connection.from];
|
|
|
const target = allNodesMap[connection.to];
|
|
|
connection._source = source;
|
|
|
connection._target = target;
|
|
|
});
|
|
|
const visibleConnections = connections.filter(
|
|
|
(d) => visibleNodesMap[d.from] && visibleNodesMap[d.to],
|
|
|
);
|
|
|
const defsString = attrs.defs.bind(this)(attrs, visibleConnections);
|
|
|
const existingString = attrs.defsWrapper.html();
|
|
|
if (defsString !== existingString) {
|
|
|
attrs.defsWrapper.html(defsString);
|
|
|
}
|
|
|
|
|
|
// -------------------------- LINKS ----------------------
|
|
|
// Get links selection
|
|
|
const linkSelection = attrs.linksWrapper
|
|
|
.selectAll('path.link')
|
|
|
.data(links, (d) => attrs.nodeId(d.data));
|
|
|
|
|
|
// Enter any new links at the parent's previous position.
|
|
|
const linkEnter = linkSelection
|
|
|
.enter()
|
|
|
.insert('path', 'g')
|
|
|
.attr('class', 'link')
|
|
|
.attr('d', (d) => {
|
|
|
const xo = attrs.layoutBindings[attrs.layout].linkJoinX({
|
|
|
x: x0,
|
|
|
y: y0,
|
|
|
width,
|
|
|
height,
|
|
|
});
|
|
|
const yo = attrs.layoutBindings[attrs.layout].linkJoinY({
|
|
|
x: x0,
|
|
|
y: y0,
|
|
|
width,
|
|
|
height,
|
|
|
});
|
|
|
const o = { x: xo, y: yo };
|
|
|
return attrs.layoutBindings[attrs.layout].diagonal(o, o, o);
|
|
|
});
|
|
|
|
|
|
// Get links update selection
|
|
|
const linkUpdate = linkEnter.merge(linkSelection);
|
|
|
|
|
|
// Styling links
|
|
|
linkUpdate.attr('fill', 'none');
|
|
|
|
|
|
// Allow external modifications
|
|
|
linkUpdate.each(attrs.linkUpdate);
|
|
|
|
|
|
// Transition back to the parent element position
|
|
|
linkUpdate
|
|
|
.transition()
|
|
|
.duration(attrs.duration)
|
|
|
.attr('d', (d) => {
|
|
|
const n =
|
|
|
attrs.compact && d.flexCompactDim
|
|
|
? {
|
|
|
x: attrs.layoutBindings[attrs.layout].compactLinkMidX(d, attrs),
|
|
|
y: attrs.layoutBindings[attrs.layout].compactLinkMidY(d, attrs),
|
|
|
}
|
|
|
: {
|
|
|
x: attrs.layoutBindings[attrs.layout].linkX(d),
|
|
|
y: attrs.layoutBindings[attrs.layout].linkY(d),
|
|
|
};
|
|
|
|
|
|
const p = {
|
|
|
x: attrs.layoutBindings[attrs.layout].linkParentX(d),
|
|
|
y: attrs.layoutBindings[attrs.layout].linkParentY(d),
|
|
|
};
|
|
|
|
|
|
const m =
|
|
|
attrs.compact && d.flexCompactDim
|
|
|
? {
|
|
|
x: attrs.layoutBindings[attrs.layout].linkCompactXStart(d),
|
|
|
y: attrs.layoutBindings[attrs.layout].linkCompactYStart(d),
|
|
|
}
|
|
|
: n;
|
|
|
return attrs.layoutBindings[attrs.layout].diagonal(n, p, m);
|
|
|
});
|
|
|
|
|
|
// Remove any links which is exiting after animation
|
|
|
const linkExit = linkSelection
|
|
|
.exit()
|
|
|
.transition()
|
|
|
.duration(attrs.duration)
|
|
|
.attr('d', (d) => {
|
|
|
const xo = attrs.layoutBindings[attrs.layout].linkJoinX({
|
|
|
x,
|
|
|
y,
|
|
|
width,
|
|
|
height,
|
|
|
});
|
|
|
const yo = attrs.layoutBindings[attrs.layout].linkJoinY({
|
|
|
x,
|
|
|
y,
|
|
|
width,
|
|
|
height,
|
|
|
});
|
|
|
const o = { x: xo, y: yo };
|
|
|
return attrs.layoutBindings[attrs.layout].diagonal(o, o);
|
|
|
})
|
|
|
.remove();
|
|
|
|
|
|
// -------------------------- CONNECTIONS ----------------------
|
|
|
|
|
|
const connectionsSel = attrs.connectionsWrapper
|
|
|
.selectAll('path.connection')
|
|
|
.data(visibleConnections);
|
|
|
|
|
|
// Enter any new connections at the parent's previous position.
|
|
|
const connEnter = connectionsSel
|
|
|
.enter()
|
|
|
.insert('path', 'g')
|
|
|
.attr('class', 'connection')
|
|
|
.attr('d', (d) => {
|
|
|
const xo = attrs.layoutBindings[attrs.layout].linkJoinX({
|
|
|
x: x0,
|
|
|
y: y0,
|
|
|
width,
|
|
|
height,
|
|
|
});
|
|
|
const yo = attrs.layoutBindings[attrs.layout].linkJoinY({
|
|
|
x: x0,
|
|
|
y: y0,
|
|
|
width,
|
|
|
height,
|
|
|
});
|
|
|
const o = { x: xo, y: yo };
|
|
|
return attrs.layoutBindings[attrs.layout].diagonal(o, o);
|
|
|
});
|
|
|
|
|
|
// Get connections update selection
|
|
|
const connUpdate = connEnter.merge(connectionsSel);
|
|
|
|
|
|
// Styling connections
|
|
|
connUpdate.attr('fill', 'none');
|
|
|
|
|
|
// Transition back to the parent element position
|
|
|
connUpdate
|
|
|
.transition()
|
|
|
.duration(attrs.duration)
|
|
|
.attr('d', (d) => {
|
|
|
const xs = attrs.layoutBindings[attrs.layout].linkX({
|
|
|
x: d._source.x,
|
|
|
y: d._source.y,
|
|
|
width: d._source.width,
|
|
|
height: d._source.height,
|
|
|
});
|
|
|
const ys = attrs.layoutBindings[attrs.layout].linkY({
|
|
|
x: d._source.x,
|
|
|
y: d._source.y,
|
|
|
width: d._source.width,
|
|
|
height: d._source.height,
|
|
|
});
|
|
|
const xt = attrs.layoutBindings[attrs.layout].linkJoinX({
|
|
|
x: d._target.x,
|
|
|
y: d._target.y,
|
|
|
width: d._target.width,
|
|
|
height: d._target.height,
|
|
|
});
|
|
|
const yt = attrs.layoutBindings[attrs.layout].linkJoinY({
|
|
|
x: d._target.x,
|
|
|
y: d._target.y,
|
|
|
width: d._target.width,
|
|
|
height: d._target.height,
|
|
|
});
|
|
|
return attrs.linkGroupArc({
|
|
|
source: { x: xs, y: ys },
|
|
|
target: { x: xt, y: yt },
|
|
|
});
|
|
|
});
|
|
|
|
|
|
// Allow external modifications
|
|
|
connUpdate.each(attrs.connectionsUpdate);
|
|
|
|
|
|
// Remove any links which is exiting after animation
|
|
|
const connExit = connectionsSel
|
|
|
.exit()
|
|
|
.transition()
|
|
|
.duration(attrs.duration)
|
|
|
.attr('opacity', 0)
|
|
|
.remove();
|
|
|
|
|
|
// -------------------------- NODES ----------------------
|
|
|
// Get nodes selection
|
|
|
const nodesSelection = attrs.nodesWrapper
|
|
|
.selectAll('g.node')
|
|
|
.data(nodes, ({ data }) => attrs.nodeId(data));
|
|
|
|
|
|
// Enter any new nodes at the parent's previous position.
|
|
|
const nodeEnter = nodesSelection
|
|
|
.enter()
|
|
|
.append('g')
|
|
|
.attr('class', 'node')
|
|
|
.attr('transform', (d) => {
|
|
|
if (d == attrs.root) return `translate(${x0},${y0})`;
|
|
|
const xj = attrs.layoutBindings[attrs.layout].nodeJoinX({
|
|
|
x: x0,
|
|
|
y: y0,
|
|
|
width,
|
|
|
height,
|
|
|
});
|
|
|
const yj = attrs.layoutBindings[attrs.layout].nodeJoinY({
|
|
|
x: x0,
|
|
|
y: y0,
|
|
|
width,
|
|
|
height,
|
|
|
});
|
|
|
return `translate(${xj},${yj})`;
|
|
|
})
|
|
|
.attr('cursor', 'pointer')
|
|
|
.on('click', (event, { data }) => {
|
|
|
if (
|
|
|
[...event.srcElement.classList].includes('node-button-foreign-object')
|
|
|
) {
|
|
|
return;
|
|
|
}
|
|
|
//attrs.onNodeClick(attrs.nodeId(data));
|
|
|
attrs.onNodeClick(data);
|
|
|
});
|
|
|
|
|
|
// Add background rectangle for the nodes
|
|
|
nodeEnter.patternify({
|
|
|
tag: 'rect',
|
|
|
selector: 'node-rect',
|
|
|
data: (d) => [d],
|
|
|
});
|
|
|
|
|
|
// Node update styles
|
|
|
const nodeUpdate = nodeEnter
|
|
|
.merge(nodesSelection)
|
|
|
.style('font', '12px sans-serif');
|
|
|
|
|
|
// Add foreignObject element inside rectangle
|
|
|
const fo = nodeUpdate
|
|
|
.patternify({
|
|
|
tag: 'foreignObject',
|
|
|
selector: 'node-foreign-object',
|
|
|
data: (d) => [d],
|
|
|
})
|
|
|
.style('overflow', 'visible');
|
|
|
|
|
|
// Add foreign object
|
|
|
fo.patternify({
|
|
|
tag: 'xhtml:div',
|
|
|
selector: 'node-foreign-object-div',
|
|
|
data: (d) => [d],
|
|
|
});
|
|
|
|
|
|
this.restyleForeignObjectElements();
|
|
|
|
|
|
// Add Node button circle's group (expand-collapse button)
|
|
|
const nodeButtonGroups = nodeEnter
|
|
|
.patternify({
|
|
|
tag: 'g',
|
|
|
selector: 'node-button-g',
|
|
|
data: (d) => [d],
|
|
|
})
|
|
|
.on('click', (event, d) => this.onButtonClick(event, d));
|
|
|
|
|
|
nodeButtonGroups
|
|
|
.patternify({
|
|
|
tag: 'rect',
|
|
|
selector: 'node-button-rect',
|
|
|
data: (d) => [d],
|
|
|
})
|
|
|
.attr('opacity', 0)
|
|
|
.attr('pointer-events', 'all')
|
|
|
.attr('width', 40)
|
|
|
.attr('height', 40)
|
|
|
.attr('x', -20)
|
|
|
.attr('y', -20);
|
|
|
|
|
|
// Add expand collapse button content
|
|
|
const nodeFo = nodeButtonGroups
|
|
|
.patternify({
|
|
|
tag: 'foreignObject',
|
|
|
selector: 'node-button-foreign-object',
|
|
|
data: (d) => [d],
|
|
|
})
|
|
|
.attr('width', 40)
|
|
|
.attr('height', 40)
|
|
|
.attr('x', -20)
|
|
|
.attr('y', -20)
|
|
|
.style('overflow', 'visible')
|
|
|
.patternify({
|
|
|
tag: 'xhtml:div',
|
|
|
selector: 'node-button-div',
|
|
|
data: (d) => [d],
|
|
|
})
|
|
|
.style('pointer-events', 'none')
|
|
|
.style('display', 'flex')
|
|
|
.style('width', '100%')
|
|
|
.style('height', '100%');
|
|
|
|
|
|
// Transition to the proper position for the node
|
|
|
nodeUpdate
|
|
|
.transition()
|
|
|
.attr('opacity', 0)
|
|
|
.duration(attrs.duration)
|
|
|
.attr('transform', ({ x, y, width, height }) => {
|
|
|
return attrs.layoutBindings[attrs.layout].nodeUpdateTransform({
|
|
|
x,
|
|
|
y,
|
|
|
width,
|
|
|
height,
|
|
|
});
|
|
|
})
|
|
|
.attr('opacity', 1);
|
|
|
|
|
|
// Style node rectangles
|
|
|
nodeUpdate
|
|
|
.select('.node-rect')
|
|
|
.attr('width', ({ width }) => width)
|
|
|
.attr('height', ({ height }) => height)
|
|
|
.attr('x', ({ width }) => 0)
|
|
|
.attr('y', ({ height }) => 0)
|
|
|
.attr('cursor', 'pointer')
|
|
|
.attr('rx', 3)
|
|
|
.attr('fill', attrs.nodeDefaultBackground);
|
|
|
|
|
|
// Move node button group to the desired position
|
|
|
nodeUpdate
|
|
|
.select('.node-button-g')
|
|
|
.attr('transform', ({ data, width, height }) => {
|
|
|
const x = attrs.layoutBindings[attrs.layout].buttonX({ width, height });
|
|
|
const y = attrs.layoutBindings[attrs.layout].buttonY({ width, height });
|
|
|
return `translate(${x},${y})`;
|
|
|
})
|
|
|
.attr('display', ({ data }) => {
|
|
|
return data._directSubordinates > 0 ? null : 'none';
|
|
|
})
|
|
|
.attr('opacity', ({ children, _children }) => {
|
|
|
if (children || _children) {
|
|
|
return 1;
|
|
|
}
|
|
|
return 0;
|
|
|
});
|
|
|
|
|
|
// Restyle node button circle
|
|
|
nodeUpdate
|
|
|
.select('.node-button-foreign-object .node-button-div')
|
|
|
.html((node) => {
|
|
|
return attrs.buttonContent({ node, state: attrs });
|
|
|
});
|
|
|
|
|
|
// Restyle button texts
|
|
|
nodeUpdate
|
|
|
.select('.node-button-text')
|
|
|
.attr('text-anchor', 'middle')
|
|
|
.attr('alignment-baseline', 'middle')
|
|
|
.attr('fill', attrs.defaultTextFill)
|
|
|
.attr('font-size', ({ children }) => {
|
|
|
if (children) return 40;
|
|
|
return 26;
|
|
|
})
|
|
|
.text(({ children }) => {
|
|
|
if (children) return '-';
|
|
|
return '+';
|
|
|
})
|
|
|
.attr('y', this.isEdge() ? 10 : 0);
|
|
|
|
|
|
nodeUpdate.each(attrs.nodeUpdate);
|
|
|
|
|
|
// Remove any exiting nodes after transition
|
|
|
const nodeExitTransition = nodesSelection
|
|
|
.exit()
|
|
|
.attr('opacity', 1)
|
|
|
.transition()
|
|
|
.duration(attrs.duration)
|
|
|
.attr('transform', (d) => {
|
|
|
const ex = attrs.layoutBindings[attrs.layout].nodeJoinX({
|
|
|
x,
|
|
|
y,
|
|
|
width,
|
|
|
height,
|
|
|
});
|
|
|
const ey = attrs.layoutBindings[attrs.layout].nodeJoinY({
|
|
|
x,
|
|
|
y,
|
|
|
width,
|
|
|
height,
|
|
|
});
|
|
|
return `translate(${ex},${ey})`;
|
|
|
})
|
|
|
.on('end', function () {
|
|
|
d3.select(this).remove();
|
|
|
})
|
|
|
.attr('opacity', 0);
|
|
|
|
|
|
// Store the old positions for transition.
|
|
|
nodes.forEach((d) => {
|
|
|
d.x0 = d.x;
|
|
|
d.y0 = d.y;
|
|
|
});
|
|
|
|
|
|
// CHECK FOR CENTERING
|
|
|
|
|
|
// const centeredNode = attrs.allNodes.filter(d=> d.data._centered === null)[0];
|
|
|
const centeredNode = attrs.allNodes.filter((d) => d.data._centered)[0];
|
|
|
if (centeredNode) {
|
|
|
const centeredNodes = centeredNode.data._centeredWithDescendants
|
|
|
? centeredNode.descendants().filter((d, i) => i < 7)
|
|
|
: [centeredNode];
|
|
|
centeredNode.data._centeredWithDescendants = null;
|
|
|
centeredNode.data._centered = null;
|
|
|
// if (type == 'buttonClick') {
|
|
|
// this.fit({
|
|
|
// animate: true,
|
|
|
// scale: false,
|
|
|
// nodes: centeredNodes,
|
|
|
// transform: false,
|
|
|
// });
|
|
|
// } else {
|
|
|
// this.fit();
|
|
|
// }
|
|
|
this.fit({
|
|
|
animate: true,
|
|
|
scale: false,
|
|
|
nodes: centeredNodes,
|
|
|
transform: false,
|
|
|
});
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// This function detects whether current browser is edge
|
|
|
isEdge() {
|
|
|
return window.navigator.userAgent.includes('Edge');
|
|
|
}
|
|
|
|
|
|
// Generate horizontal diagonal - play with it here - https://observablehq.com/@bumbeishvili/curved-edges-horizontal-d3-v3-v4-v5-v6
|
|
|
hdiagonal(s, t, m) {
|
|
|
// Define source and target x,y coordinates
|
|
|
const x = s.x;
|
|
|
const y = s.y;
|
|
|
const ex = t.x;
|
|
|
const ey = t.y;
|
|
|
|
|
|
let mx = (m && m.x) || x;
|
|
|
let my = (m && m.y) || y;
|
|
|
|
|
|
// Values in case of top reversed and left reversed diagonals
|
|
|
let xrvs = ex - x < 0 ? -1 : 1;
|
|
|
let yrvs = ey - y < 0 ? -1 : 1;
|
|
|
|
|
|
// Define preferred curve radius
|
|
|
let rdef = 35;
|
|
|
|
|
|
// Reduce curve radius, if source-target x space is smaller
|
|
|
let r = Math.abs(ex - x) / 2 < rdef ? Math.abs(ex - x) / 2 : rdef;
|
|
|
|
|
|
// Further reduce curve radius, is y space is more small
|
|
|
r = Math.abs(ey - y) / 2 < r ? Math.abs(ey - y) / 2 : r;
|
|
|
|
|
|
// Defin width and height of link, excluding radius
|
|
|
let h = Math.abs(ey - y) / 2 - r;
|
|
|
let w = Math.abs(ex - x) / 2 - r;
|
|
|
|
|
|
// Build and return custom arc command
|
|
|
return `
|
|
|
M ${mx} ${my}
|
|
|
L ${mx} ${y}
|
|
|
L ${x} ${y}
|
|
|
L ${x + w * xrvs} ${y}
|
|
|
C ${x + w * xrvs + r * xrvs} ${y}
|
|
|
${x + w * xrvs + r * xrvs} ${y}
|
|
|
${x + w * xrvs + r * xrvs} ${y + r * yrvs}
|
|
|
L ${x + w * xrvs + r * xrvs} ${ey - r * yrvs}
|
|
|
C ${x + w * xrvs + r * xrvs} ${ey}
|
|
|
${x + w * xrvs + r * xrvs} ${ey}
|
|
|
${ex - w * xrvs} ${ey}
|
|
|
L ${ex} ${ey}
|
|
|
`;
|
|
|
}
|
|
|
|
|
|
// Generate custom diagonal - play with it here - https://observablehq.com/@bumbeishvili/curved-edges
|
|
|
diagonal(s, t, m) {
|
|
|
const x = s.x;
|
|
|
const y = s.y;
|
|
|
const ex = t.x;
|
|
|
const ey = t.y;
|
|
|
|
|
|
let mx = (m && m.x) || x;
|
|
|
let my = (m && m.y) || y;
|
|
|
|
|
|
let xrvs = ex - x < 0 ? -1 : 1;
|
|
|
let yrvs = ey - y < 0 ? -1 : 1;
|
|
|
|
|
|
let rdef = 35;
|
|
|
let r = Math.abs(ex - x) / 2 < rdef ? Math.abs(ex - x) / 2 : rdef;
|
|
|
|
|
|
r = Math.abs(ey - y) / 2 < r ? Math.abs(ey - y) / 2 : r;
|
|
|
|
|
|
let h = Math.abs(ey - y) / 2 - r;
|
|
|
let w = Math.abs(ex - x) - r * 2;
|
|
|
//w=0;
|
|
|
const path = `
|
|
|
M ${mx} ${my}
|
|
|
L ${x} ${my}
|
|
|
L ${x} ${y}
|
|
|
L ${x} ${y + h * yrvs}
|
|
|
C ${x} ${y + h * yrvs + r * yrvs} ${x} ${
|
|
|
y + h * yrvs + r * yrvs
|
|
|
} ${x + r * xrvs} ${y + h * yrvs + r * yrvs}
|
|
|
L ${x + w * xrvs + r * xrvs} ${y + h * yrvs + r * yrvs}
|
|
|
C ${ex} ${y + h * yrvs + r * yrvs} ${ex} ${
|
|
|
y + h * yrvs + r * yrvs
|
|
|
} ${ex} ${ey - h * yrvs}
|
|
|
L ${ex} ${ey}
|
|
|
`;
|
|
|
return path;
|
|
|
}
|
|
|
|
|
|
restyleForeignObjectElements() {
|
|
|
const attrs = this.getChartState();
|
|
|
|
|
|
attrs.svg
|
|
|
.selectAll('.node-foreign-object')
|
|
|
.attr('width', ({ width }) => width)
|
|
|
.attr('height', ({ height }) => height)
|
|
|
.attr('x', ({ width }) => 0)
|
|
|
.attr('y', ({ height }) => 0);
|
|
|
attrs.svg
|
|
|
.selectAll('.node-foreign-object-div')
|
|
|
.style('width', ({ width }) => `${width}px`)
|
|
|
.style('height', ({ height }) => `${height}px`)
|
|
|
.html(function (d, i, arr) {
|
|
|
return d.id ? attrs.nodeContent.bind(this)(d, i, arr, attrs) : '';
|
|
|
});
|
|
|
}
|
|
|
|
|
|
// Toggle children on click.
|
|
|
onButtonClick(event, d) {
|
|
|
const attrs = this.getChartState();
|
|
|
if (attrs.setActiveNodeCentered) {
|
|
|
d.data._centered = true;
|
|
|
d.data._centeredWithDescendants = true;
|
|
|
}
|
|
|
|
|
|
// If childrens are expanded
|
|
|
if (d.children) {
|
|
|
//Collapse them
|
|
|
d._children = d.children;
|
|
|
d.children = null;
|
|
|
|
|
|
// Set descendants expanded property to false
|
|
|
this.setExpansionFlagToChildren(d, false);
|
|
|
} else {
|
|
|
// Expand children
|
|
|
d.children = d._children;
|
|
|
d._children = null;
|
|
|
|
|
|
// Set each children as expanded
|
|
|
if (d.children) {
|
|
|
d.children.forEach(({ data }) => (data._expanded = true));
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// Redraw Graph
|
|
|
this.update(d, 'buttonClick');
|
|
|
}
|
|
|
|
|
|
// This function changes `expanded` property to descendants
|
|
|
setExpansionFlagToChildren({ data, children, _children }, flag) {
|
|
|
// Set flag to the current property
|
|
|
data._expanded = flag;
|
|
|
|
|
|
// Loop over and recursively update expanded children's descendants
|
|
|
if (children) {
|
|
|
children.forEach((d) => {
|
|
|
this.setExpansionFlagToChildren(d, flag);
|
|
|
});
|
|
|
}
|
|
|
|
|
|
// Loop over and recursively update collapsed children's descendants
|
|
|
if (_children) {
|
|
|
_children.forEach((d) => {
|
|
|
this.setExpansionFlagToChildren(d, flag);
|
|
|
});
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// Method which only expands nodes, which have property set "expanded=true"
|
|
|
expandSomeNodes(d) {
|
|
|
// If node has expanded property set
|
|
|
if (d.data._expanded) {
|
|
|
// Retrieve node's parent
|
|
|
let parent = d.parent;
|
|
|
|
|
|
// While we can go up
|
|
|
while (parent) {
|
|
|
// Expand all current parent's children
|
|
|
if (parent._children) {
|
|
|
parent.children = parent._children;
|
|
|
}
|
|
|
|
|
|
// Replace current parent holding object
|
|
|
parent = parent.parent;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// Recursivelly do the same for collapsed nodes
|
|
|
if (d._children) {
|
|
|
d._children.forEach((ch) => this.expandSomeNodes(ch));
|
|
|
}
|
|
|
|
|
|
// Recursivelly do the same for expanded nodes
|
|
|
if (d.children) {
|
|
|
d.children.forEach((ch) => this.expandSomeNodes(ch));
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// This function updates nodes state and redraws graph, usually after data change
|
|
|
updateNodesState() {
|
|
|
const attrs = this.getChartState();
|
|
|
|
|
|
this.setLayouts({ expandNodesFirst: true });
|
|
|
|
|
|
// Redraw Graphs
|
|
|
this.update(attrs.root);
|
|
|
}
|
|
|
|
|
|
setLayouts({ expandNodesFirst = true }) {
|
|
|
const attrs = this.getChartState();
|
|
|
// Store new root by converting flat data to hierarchy
|
|
|
attrs.root = d3
|
|
|
.stratify()
|
|
|
.id((d) => attrs.nodeId(d))
|
|
|
.parentId((d) => attrs.parentNodeId(d))(attrs.data);
|
|
|
|
|
|
attrs.root.each((node, i, arr) => {
|
|
|
let width = attrs.nodeWidth(node);
|
|
|
let height = attrs.nodeHeight(node);
|
|
|
Object.assign(node, { width, height });
|
|
|
});
|
|
|
|
|
|
// Store positions, where children appear during their enter animation
|
|
|
attrs.root.x0 = 0;
|
|
|
attrs.root.y0 = 0;
|
|
|
attrs.allNodes = attrs.root.descendants();
|
|
|
|
|
|
// Store direct and total descendants count
|
|
|
attrs.allNodes.forEach((d) => {
|
|
|
Object.assign(d.data, {
|
|
|
_directSubordinates: d.children ? d.children.length : 0,
|
|
|
_totalSubordinates: d.descendants().length - 1,
|
|
|
});
|
|
|
});
|
|
|
|
|
|
if (attrs.root.children) {
|
|
|
if (expandNodesFirst) {
|
|
|
// Expand all nodes first
|
|
|
attrs.root.children.forEach(this.expand);
|
|
|
attrs.root.children.forEach((item) => {
|
|
|
item?.children?.forEach(this.expand);
|
|
|
});
|
|
|
}
|
|
|
// Then collapse them all
|
|
|
attrs.root.children.forEach((d) => this.collapse(d));
|
|
|
|
|
|
// Collapse root if level is 0
|
|
|
if (attrs.expandLevel == 0) {
|
|
|
attrs.root._children = attrs.root.children;
|
|
|
attrs.root.children = null;
|
|
|
}
|
|
|
|
|
|
// Then only expand nodes, which have expanded proprty set to true
|
|
|
[attrs.root].forEach((ch) => this.expandSomeNodes(ch));
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// Function which collapses passed node and it's descendants
|
|
|
collapse(d) {
|
|
|
if (d.children) {
|
|
|
d._children = d.children;
|
|
|
d._children.forEach((ch) => this.collapse(ch));
|
|
|
d.children = null;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// Function which expands passed node and it's descendants
|
|
|
expand(d) {
|
|
|
if (d._children) {
|
|
|
d.children = d._children;
|
|
|
d.children.forEach((ch) => this.expand(ch));
|
|
|
d._children = null;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// Zoom handler function
|
|
|
zoomed(event, d) {
|
|
|
const attrs = this.getChartState();
|
|
|
const chart = attrs.chart;
|
|
|
|
|
|
// Get d3 event's transform object
|
|
|
const transform = event.transform;
|
|
|
|
|
|
// Store it
|
|
|
attrs.lastTransform = transform;
|
|
|
|
|
|
// Reposition and rescale chart accordingly
|
|
|
chart.attr('transform', transform);
|
|
|
|
|
|
// Apply new styles to the foreign object element
|
|
|
if (this.isEdge()) {
|
|
|
this.restyleForeignObjectElements();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
zoomTreeBounds({ x0, x1, y0, y1, params = { animate: true, scale: true } }) {
|
|
|
const {
|
|
|
centerG,
|
|
|
svgWidth: w,
|
|
|
svgHeight: h,
|
|
|
svg,
|
|
|
zoomBehavior,
|
|
|
duration,
|
|
|
lastTransform,
|
|
|
} = this.getChartState();
|
|
|
let scaleVal = Math.min(8, 0.9 / Math.max((x1 - x0) / w, (y1 - y0) / h));
|
|
|
let identity = d3.zoomIdentity.translate(w / 2, h / 2);
|
|
|
identity = identity.scale(params.scale ? scaleVal : lastTransform.k);
|
|
|
|
|
|
identity = identity.translate(-(x0 + x1) / 2, -(y0 + y1) / 2);
|
|
|
// Transition zoom wrapper component into specified bounds
|
|
|
svg
|
|
|
.transition()
|
|
|
.duration(params.animate ? duration : 0)
|
|
|
.call(zoomBehavior.transform, identity);
|
|
|
centerG
|
|
|
.transition()
|
|
|
.duration(params.animate ? duration : 0)
|
|
|
.attr('transform', 'translate(0,0)');
|
|
|
}
|
|
|
|
|
|
fit({ animate = true, nodes, scale = true, transform = true } = {}) {
|
|
|
const attrs = this.getChartState();
|
|
|
const { root } = attrs;
|
|
|
let descendants = nodes ? nodes : root.descendants();
|
|
|
const minX = d3.min(
|
|
|
descendants,
|
|
|
(d) => d.x + attrs.layoutBindings[attrs.layout].nodeLeftX(d),
|
|
|
);
|
|
|
const maxX = d3.max(
|
|
|
descendants,
|
|
|
(d) => d.x + attrs.layoutBindings[attrs.layout].nodeRightX(d),
|
|
|
);
|
|
|
const minY = d3.min(
|
|
|
descendants,
|
|
|
(d) => d.y + attrs.layoutBindings[attrs.layout].nodeTopY(d),
|
|
|
);
|
|
|
const maxY = d3.max(
|
|
|
descendants,
|
|
|
(d) => d.y + attrs.layoutBindings[attrs.layout].nodeBottomY(d),
|
|
|
);
|
|
|
this.zoomTreeBounds({
|
|
|
params: { animate: animate, scale },
|
|
|
x0: transform == 'export' ? minX - 700 : minX - 50,
|
|
|
x1: transform == 'export' ? maxX + 0 : maxX - 50,
|
|
|
y0: transform == false ? minY - 250 : minY - 0,
|
|
|
y1: transform == false ? maxY + 350 : maxY + 250,
|
|
|
});
|
|
|
return this;
|
|
|
}
|
|
|
|
|
|
// This function can be invoked via chart.setExpanded API, it expands or collapses particular node
|
|
|
setExpanded(id, expandedFlag = true) {
|
|
|
const attrs = this.getChartState();
|
|
|
// Retrieve node by node Id
|
|
|
const node = attrs.allNodes.filter(
|
|
|
({ data }) => attrs.nodeId(data) == id,
|
|
|
)[0];
|
|
|
|
|
|
if (!node) {
|
|
|
return this;
|
|
|
}
|
|
|
node.data._expanded = expandedFlag;
|
|
|
return this;
|
|
|
}
|
|
|
|
|
|
setCentered(nodeId) {
|
|
|
const attrs = this.getChartState();
|
|
|
// this.setExpanded(nodeId)
|
|
|
const node = attrs.allNodes?.filter(
|
|
|
(d) => attrs.nodeId(d.data) === nodeId,
|
|
|
)[0];
|
|
|
if (!node) {
|
|
|
return this;
|
|
|
}
|
|
|
node.data._centered = true;
|
|
|
node.data._expanded = true;
|
|
|
return this;
|
|
|
}
|
|
|
|
|
|
setHighlighted(nodeId) {
|
|
|
const attrs = this.getChartState();
|
|
|
const node = attrs.allNodes.filter(
|
|
|
(d) => attrs.nodeId(d.data) === nodeId,
|
|
|
)[0];
|
|
|
if (!node) {
|
|
|
return this;
|
|
|
}
|
|
|
node.data._highlighted = true;
|
|
|
node.data._expanded = true;
|
|
|
node.data._centered = true;
|
|
|
return this;
|
|
|
}
|
|
|
|
|
|
setUpToTheRootHighlighted(nodeId) {
|
|
|
const attrs = this.getChartState();
|
|
|
const node = attrs.allNodes.filter(
|
|
|
(d) => attrs.nodeId(d.data) === nodeId,
|
|
|
)[0];
|
|
|
if (!node) {
|
|
|
return this;
|
|
|
}
|
|
|
node.data._upToTheRootHighlighted = true;
|
|
|
node.data._expanded = true;
|
|
|
node.ancestors().forEach((d) => (d.data._upToTheRootHighlighted = true));
|
|
|
return this;
|
|
|
}
|
|
|
|
|
|
clearHighlighting() {
|
|
|
const attrs = this.getChartState();
|
|
|
attrs.allNodes.forEach((d) => {
|
|
|
d.data._highlighted = false;
|
|
|
d.data._upToTheRootHighlighted = false;
|
|
|
});
|
|
|
this.update(attrs.root);
|
|
|
}
|
|
|
|
|
|
// It can take selector which would go fullscreen
|
|
|
fullscreen(elem) {
|
|
|
const attrs = this.getChartState();
|
|
|
const el = d3.select(elem || attrs.container).node();
|
|
|
|
|
|
d3.select(document).on('fullscreenchange.' + attrs.id, function (d) {
|
|
|
const fsElement =
|
|
|
document.fullscreenElement ||
|
|
|
document.mozFullscreenElement ||
|
|
|
document.webkitFullscreenElement;
|
|
|
if (fsElement == el) {
|
|
|
setTimeout((d) => {
|
|
|
attrs.svg.attr('height', window.innerHeight - 40);
|
|
|
}, 500);
|
|
|
} else {
|
|
|
attrs.svg.attr('height', attrs.svgHeight);
|
|
|
}
|
|
|
});
|
|
|
|
|
|
if (el.requestFullscreen) {
|
|
|
el.requestFullscreen();
|
|
|
} else if (el.mozRequestFullScreen) {
|
|
|
el.mozRequestFullScreen();
|
|
|
} else if (el.webkitRequestFullscreen) {
|
|
|
el.webkitRequestFullscreen();
|
|
|
} else if (el.msRequestFullscreen) {
|
|
|
el.msRequestFullscreen();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// Zoom in exposed method
|
|
|
zoomIn() {
|
|
|
const { svg, zoomBehavior } = this.getChartState();
|
|
|
svg.transition().call(zoomBehavior.scaleBy, 1.3);
|
|
|
}
|
|
|
|
|
|
// Zoom out exposed method
|
|
|
zoomOut() {
|
|
|
const { svg, zoomBehavior } = this.getChartState();
|
|
|
svg.transition().call(zoomBehavior.scaleBy, 0.78);
|
|
|
}
|
|
|
|
|
|
toDataURL(url, callback) {
|
|
|
var xhr = new XMLHttpRequest();
|
|
|
xhr.onload = function () {
|
|
|
var reader = new FileReader();
|
|
|
reader.onloadend = function () {
|
|
|
callback(reader.result);
|
|
|
};
|
|
|
reader.readAsDataURL(xhr.response);
|
|
|
};
|
|
|
xhr.open('GET', url);
|
|
|
xhr.responseType = 'blob';
|
|
|
xhr.send();
|
|
|
}
|
|
|
|
|
|
exportImg({ full = false, scale = 12, onLoad = (d) => d, save = true } = {}) {
|
|
|
const that = this;
|
|
|
const attrs = this.getChartState();
|
|
|
const { svg: svgImg, root } = attrs;
|
|
|
let count = 0;
|
|
|
const selection = svgImg.selectAll('img');
|
|
|
let total = selection.size();
|
|
|
|
|
|
const exportImage = () => {
|
|
|
const transform = JSON.parse(JSON.stringify(that.lastTransform()));
|
|
|
const duration = that.duration();
|
|
|
if (full) {
|
|
|
that.fit({ transform: 'export' });
|
|
|
}
|
|
|
const { svg } = that.getChartState();
|
|
|
|
|
|
setTimeout(
|
|
|
(d) => {
|
|
|
that.downloadImage({
|
|
|
node: svg.node(),
|
|
|
scale,
|
|
|
isSvg: false,
|
|
|
onAlreadySerialized: (d) => {
|
|
|
that.update(root);
|
|
|
},
|
|
|
onLoad: onLoad,
|
|
|
save,
|
|
|
});
|
|
|
},
|
|
|
full ? duration + 10 : 0,
|
|
|
);
|
|
|
};
|
|
|
|
|
|
if (total > 0) {
|
|
|
selection.each(function () {
|
|
|
that.toDataURL(this.src, (dataUrl) => {
|
|
|
this.src = dataUrl;
|
|
|
if (++count == total) {
|
|
|
exportImage();
|
|
|
}
|
|
|
});
|
|
|
});
|
|
|
} else {
|
|
|
exportImage();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
exportSvg() {
|
|
|
const { svg } = this.getChartState();
|
|
|
this.downloadImage({ node: svg.node(), scale: 3, isSvg: true });
|
|
|
return this;
|
|
|
}
|
|
|
|
|
|
expandAll() {
|
|
|
const { allNodes, root } = this.getChartState();
|
|
|
allNodes.forEach((d) => (d.data._expanded = true));
|
|
|
this.render();
|
|
|
return this;
|
|
|
}
|
|
|
|
|
|
expandExpandNodes() {
|
|
|
const { allNodes, root } = this.getChartState();
|
|
|
// allNodes.forEach(d => d.data._expanded = true);
|
|
|
allNodes.forEach(
|
|
|
(d) => (d.data._expanded = d.data.expand === '1' ? true : false),
|
|
|
);
|
|
|
this.render();
|
|
|
return this;
|
|
|
}
|
|
|
|
|
|
collapseAll() {
|
|
|
const { allNodes, root } = this.getChartState();
|
|
|
allNodes.forEach((d) => (d.data._expanded = false));
|
|
|
this.expandLevel(0);
|
|
|
this.render();
|
|
|
return this;
|
|
|
}
|
|
|
|
|
|
downloadImage({
|
|
|
node,
|
|
|
scale = 2,
|
|
|
isSvg = false,
|
|
|
save = true,
|
|
|
onAlreadySerialized = (d) => {},
|
|
|
onLoad = (d) => {},
|
|
|
}) {
|
|
|
// Retrieve svg node
|
|
|
const svgNode = node;
|
|
|
|
|
|
if (isSvg) {
|
|
|
let source = serializeString(svgNode);
|
|
|
//add xml declaration
|
|
|
source = '<?xml version="1.0" standalone="no"?>\r\n' + source;
|
|
|
//convert svg source to URI data scheme.
|
|
|
var url =
|
|
|
'data:image/svg+xml;charset=utf-8,' + encodeURIComponent(source);
|
|
|
saveAs(url, 'graph.svg');
|
|
|
onAlreadySerialized();
|
|
|
return;
|
|
|
}
|
|
|
// Get image quality index (basically, index you can zoom in)
|
|
|
const quality = scale;
|
|
|
// Create image
|
|
|
const image = document.createElement('img');
|
|
|
image.onload = function () {
|
|
|
// Create image canvas
|
|
|
const canvas = document.createElement('canvas');
|
|
|
// Set width and height based on SVG node
|
|
|
const rect = svgNode.getBoundingClientRect();
|
|
|
canvas.width = rect.width * quality;
|
|
|
canvas.height = rect.height * quality;
|
|
|
// Draw background
|
|
|
const context = canvas.getContext('2d');
|
|
|
context.fillStyle = '#FAFAFA';
|
|
|
context.fillRect(0, 0, rect.width * quality, rect.height * quality);
|
|
|
context.drawImage(
|
|
|
image,
|
|
|
0,
|
|
|
0,
|
|
|
rect.width * quality,
|
|
|
rect.height * quality,
|
|
|
);
|
|
|
// Set some image metadata
|
|
|
let dt = canvas.toDataURL('image/png');
|
|
|
if (onLoad) {
|
|
|
onLoad(dt);
|
|
|
}
|
|
|
if (save) {
|
|
|
// Invoke saving function
|
|
|
saveAs(dt, 'graph.png');
|
|
|
}
|
|
|
};
|
|
|
|
|
|
var url =
|
|
|
'data:image/svg+xml; charset=utf8, ' +
|
|
|
encodeURIComponent(serializeString(svgNode));
|
|
|
|
|
|
onAlreadySerialized();
|
|
|
|
|
|
image.src = url; // URL.createObjectURL(blob);
|
|
|
// This function invokes save window
|
|
|
function saveAs(uri, filename) {
|
|
|
// create link
|
|
|
var link = document.createElement('a');
|
|
|
if (typeof link.download === 'string') {
|
|
|
document.body.appendChild(link); // Firefox requires the link to be in the body
|
|
|
link.download = filename;
|
|
|
link.href = uri;
|
|
|
link.click();
|
|
|
document.body.removeChild(link); // remove the link when done
|
|
|
} else {
|
|
|
location.replace(uri);
|
|
|
}
|
|
|
}
|
|
|
// This function serializes SVG and sets all necessary attributes
|
|
|
function serializeString(svg) {
|
|
|
const xmlns = 'http://www.w3.org/2000/xmlns/';
|
|
|
const xlinkns = 'http://www.w3.org/1999/xlink';
|
|
|
const svgns = 'http://www.w3.org/2000/svg';
|
|
|
svg = svg.cloneNode(true);
|
|
|
const fragment = window.location.href + '#';
|
|
|
const walker = document.createTreeWalker(
|
|
|
svg,
|
|
|
NodeFilter.SHOW_ELEMENT,
|
|
|
null,
|
|
|
false,
|
|
|
);
|
|
|
while (walker.nextNode()) {
|
|
|
for (const attr of walker.currentNode.attributes) {
|
|
|
if (attr.value.includes(fragment)) {
|
|
|
attr.value = attr.value.replace(fragment, '#');
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
svg.setAttributeNS(xmlns, 'xmlns', svgns);
|
|
|
svg.setAttributeNS(xmlns, 'xmlns:xlink', xlinkns);
|
|
|
const serializer = new XMLSerializer();
|
|
|
const string = serializer.serializeToString(svg);
|
|
|
return string;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// Calculate what size text will take
|
|
|
getTextWidth(
|
|
|
text,
|
|
|
{ fontSize = 14, fontWeight = 400, defaultFont = 'Helvetice', ctx } = {},
|
|
|
) {
|
|
|
ctx.font = `${fontWeight || ''} ${fontSize}px ${defaultFont} `;
|
|
|
const measurement = ctx.measureText(text);
|
|
|
return measurement.width;
|
|
|
}
|
|
|
}
|
