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675 lines
20 KiB
JavaScript
675 lines
20 KiB
JavaScript
import graphlib from 'graphlib';
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import { select, line, curveLinear, curveCardinal, curveBasis, selectAll } from 'd3';
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import { log, getConfig, setupGraphViewbox } from './mermaidUtils';
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import { insertNode } from '../../mermaid/src/dagre-wrapper/nodes.js';
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import insertMarkers from '../../mermaid/src/dagre-wrapper/markers.js';
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// Replace with other function to avoid dependency to dagre-d3
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import { addHtmlLabel } from 'dagre-d3-es/src/dagre-js/label/add-html-label.js';
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import common, { evaluate } from '../../mermaid/src/diagrams/common/common';
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import { interpolateToCurve, getStylesFromArray } from '../../mermaid/src/utils';
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import cytoscape from 'cytoscape';
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const conf = {};
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export const setConf = function (cnf) {
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const keys = Object.keys(cnf);
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for (const key of keys) {
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conf[key] = cnf[key];
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}
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};
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// /**
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// * Function that adds the vertices found during parsing to the graph to be rendered.
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// *
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// * @param vert Object containing the vertices.
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// * @param g The graph that is to be drawn.
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// * @param svgId
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// * @param root
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// * @param doc
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// * @param diagObj
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// */
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export const addVertices = function (vert, cy, svgId, root, doc, diagObj, parentLookUpDb) {
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const svg = root.select(`[id="${svgId}"]`);
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const nodes = svg.insert('g').attr('class', 'nodes');
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const keys = Object.keys(vert);
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// Iterate through each item in the vertex object (containing all the vertices found) in the graph definition
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keys.forEach(function (id) {
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const vertex = vert[id];
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/**
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* Variable for storing the classes for the vertex
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*
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* @type {string}
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*/
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let classStr = 'default';
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if (vertex.classes.length > 0) {
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classStr = vertex.classes.join(' ');
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}
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const styles = getStylesFromArray(vertex.styles);
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// Use vertex id as text in the box if no text is provided by the graph definition
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let vertexText = vertex.text !== undefined ? vertex.text : vertex.id;
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// We create a SVG label, either by delegating to addHtmlLabel or manually
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let vertexNode;
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if (evaluate(getConfig().flowchart.htmlLabels)) {
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// TODO: addHtmlLabel accepts a labelStyle. Do we possibly have that?
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const node = {
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label: vertexText.replace(
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/fa[blrs]?:fa-[\w-]+/g,
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(s) => `<i class='${s.replace(':', ' ')}'></i>`
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),
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};
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vertexNode = addHtmlLabel(svg, node).node();
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vertexNode.parentNode.removeChild(vertexNode);
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} else {
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const svgLabel = doc.createElementNS('http://www.w3.org/2000/svg', 'text');
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svgLabel.setAttribute('style', styles.labelStyle.replace('color:', 'fill:'));
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const rows = vertexText.split(common.lineBreakRegex);
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for (const row of rows) {
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const tspan = doc.createElementNS('http://www.w3.org/2000/svg', 'tspan');
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tspan.setAttributeNS('http://www.w3.org/XML/1998/namespace', 'xml:space', 'preserve');
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tspan.setAttribute('dy', '1em');
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tspan.setAttribute('x', '1');
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tspan.textContent = row;
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svgLabel.appendChild(tspan);
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}
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vertexNode = svgLabel;
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}
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let radious = 0;
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let _shape = '';
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// Set the shape based parameters
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switch (vertex.type) {
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case 'round':
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radious = 5;
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_shape = 'rect';
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break;
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case 'square':
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_shape = 'rect';
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break;
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case 'diamond':
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_shape = 'question';
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break;
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case 'hexagon':
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_shape = 'hexagon';
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break;
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case 'odd':
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_shape = 'rect_left_inv_arrow';
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break;
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case 'lean_right':
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_shape = 'lean_right';
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break;
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case 'lean_left':
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_shape = 'lean_left';
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break;
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case 'trapezoid':
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_shape = 'trapezoid';
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break;
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case 'inv_trapezoid':
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_shape = 'inv_trapezoid';
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break;
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case 'odd_right':
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_shape = 'rect_left_inv_arrow';
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break;
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case 'circle':
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_shape = 'circle';
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break;
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case 'ellipse':
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_shape = 'ellipse';
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break;
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case 'stadium':
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_shape = 'stadium';
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break;
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case 'subroutine':
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_shape = 'subroutine';
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break;
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case 'cylinder':
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_shape = 'cylinder';
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break;
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case 'group':
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_shape = 'rect';
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break;
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case 'doublecircle':
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_shape = 'doublecircle';
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break;
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default:
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_shape = 'rect';
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}
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// // Add the node
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const node = {
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labelStyle: styles.labelStyle,
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shape: _shape,
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labelText: vertexText,
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rx: radious,
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ry: radious,
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class: classStr,
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style: styles.style,
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id: vertex.id,
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link: vertex.link,
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linkTarget: vertex.linkTarget,
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tooltip: diagObj.db.getTooltip(vertex.id) || '',
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domId: diagObj.db.lookUpDomId(vertex.id),
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haveCallback: vertex.haveCallback,
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width: vertex.type === 'group' ? 500 : undefined,
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dir: vertex.dir,
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type: vertex.type,
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props: vertex.props,
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padding: getConfig().flowchart.padding,
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};
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const nodeEl = insertNode(nodes, node, vertex.dir);
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const boundingBox = nodeEl.node().getBBox();
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cy.add({
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group: 'nodes',
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data: {
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id: vertex.id,
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labelStyle: styles.labelStyle,
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shape: _shape,
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labelText: vertexText,
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rx: radious,
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ry: radious,
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class: classStr,
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style: styles.style,
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link: vertex.link,
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linkTarget: vertex.linkTarget,
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tooltip: diagObj.db.getTooltip(vertex.id) || '',
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domId: diagObj.db.lookUpDomId(vertex.id),
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haveCallback: vertex.haveCallback,
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width: vertex.type === 'group' ? 500 : undefined,
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dir: vertex.dir,
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type: vertex.type,
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props: vertex.props,
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padding: getConfig().flowchart.padding,
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boundingBox,
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el: nodeEl,
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parent: parentLookUpDb[vertex.id],
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},
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});
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log.trace('setNode', {
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labelStyle: styles.labelStyle,
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shape: _shape,
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labelText: vertexText,
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rx: radious,
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ry: radious,
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class: classStr,
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style: styles.style,
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id: vertex.id,
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domId: diagObj.db.lookUpDomId(vertex.id),
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width: vertex.type === 'group' ? 500 : undefined,
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type: vertex.type,
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dir: vertex.dir,
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props: vertex.props,
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padding: getConfig().flowchart.padding,
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parent: parentLookUpDb[vertex.id],
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});
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});
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};
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/**
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* Add edges to graph based on parsed graph definition
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*
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* @param {object} edges The edges to add to the graph
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* @param {object} g The graph object
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* @param cy
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* @param diagObj
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*/
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export const addEdges = function (edges, cy, diagObj) {
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// log.info('abc78 edges = ', edges);
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let cnt = 0;
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let linkIdCnt = {};
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let defaultStyle;
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let defaultLabelStyle;
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if (edges.defaultStyle !== undefined) {
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const defaultStyles = getStylesFromArray(edges.defaultStyle);
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defaultStyle = defaultStyles.style;
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defaultLabelStyle = defaultStyles.labelStyle;
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}
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edges.forEach(function (edge) {
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cnt++;
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// Identify Link
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var linkIdBase = 'L-' + edge.start + '-' + edge.end;
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// count the links from+to the same node to give unique id
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if (linkIdCnt[linkIdBase] === undefined) {
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linkIdCnt[linkIdBase] = 0;
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log.info('abc78 new entry', linkIdBase, linkIdCnt[linkIdBase]);
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} else {
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linkIdCnt[linkIdBase]++;
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log.info('abc78 new entry', linkIdBase, linkIdCnt[linkIdBase]);
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}
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let linkId = linkIdBase + '-' + linkIdCnt[linkIdBase];
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log.info('abc78 new link id to be used is', linkIdBase, linkId, linkIdCnt[linkIdBase]);
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var linkNameStart = 'LS-' + edge.start;
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var linkNameEnd = 'LE-' + edge.end;
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const edgeData = { style: '', labelStyle: '' };
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edgeData.minlen = edge.length || 1;
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//edgeData.id = 'id' + cnt;
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// Set link type for rendering
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if (edge.type === 'arrow_open') {
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edgeData.arrowhead = 'none';
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} else {
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edgeData.arrowhead = 'normal';
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}
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// Check of arrow types, placed here in order not to break old rendering
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edgeData.arrowTypeStart = 'arrow_open';
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edgeData.arrowTypeEnd = 'arrow_open';
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/* eslint-disable no-fallthrough */
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switch (edge.type) {
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case 'double_arrow_cross':
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edgeData.arrowTypeStart = 'arrow_cross';
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case 'arrow_cross':
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edgeData.arrowTypeEnd = 'arrow_cross';
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break;
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case 'double_arrow_point':
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edgeData.arrowTypeStart = 'arrow_point';
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case 'arrow_point':
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edgeData.arrowTypeEnd = 'arrow_point';
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break;
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case 'double_arrow_circle':
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edgeData.arrowTypeStart = 'arrow_circle';
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case 'arrow_circle':
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edgeData.arrowTypeEnd = 'arrow_circle';
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break;
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}
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let style = '';
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let labelStyle = '';
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switch (edge.stroke) {
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case 'normal':
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style = 'fill:none;';
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if (defaultStyle !== undefined) {
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style = defaultStyle;
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}
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if (defaultLabelStyle !== undefined) {
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labelStyle = defaultLabelStyle;
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}
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edgeData.thickness = 'normal';
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edgeData.pattern = 'solid';
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break;
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case 'dotted':
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edgeData.thickness = 'normal';
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edgeData.pattern = 'dotted';
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edgeData.style = 'fill:none;stroke-width:2px;stroke-dasharray:3;';
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break;
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case 'thick':
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edgeData.thickness = 'thick';
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edgeData.pattern = 'solid';
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edgeData.style = 'stroke-width: 3.5px;fill:none;';
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break;
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}
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if (edge.style !== undefined) {
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const styles = getStylesFromArray(edge.style);
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style = styles.style;
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labelStyle = styles.labelStyle;
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}
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edgeData.style = edgeData.style += style;
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edgeData.labelStyle = edgeData.labelStyle += labelStyle;
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if (edge.interpolate !== undefined) {
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edgeData.curve = interpolateToCurve(edge.interpolate, curveLinear);
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} else if (edges.defaultInterpolate !== undefined) {
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edgeData.curve = interpolateToCurve(edges.defaultInterpolate, curveLinear);
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} else {
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edgeData.curve = interpolateToCurve(conf.curve, curveLinear);
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}
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if (edge.text === undefined) {
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if (edge.style !== undefined) {
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edgeData.arrowheadStyle = 'fill: #333';
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}
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} else {
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edgeData.arrowheadStyle = 'fill: #333';
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edgeData.labelpos = 'c';
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}
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edgeData.labelType = 'text';
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edgeData.label = edge.text.replace(common.lineBreakRegex, '\n');
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if (edge.style === undefined) {
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edgeData.style = edgeData.style || 'stroke: #333; stroke-width: 1.5px;fill:none;';
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}
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edgeData.labelStyle = edgeData.labelStyle.replace('color:', 'fill:');
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edgeData.id = linkId;
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edgeData.classes = 'flowchart-link ' + linkNameStart + ' ' + linkNameEnd;
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// Add the edge to the graph
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cy.add({ group: 'edges', data: { source: edge.start, target: edge.end, edgeData, id: cnt } });
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});
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};
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const addmarkers = function (svgPath, edgeData, diagramType, arrowMarkerAbsolute) {
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// // TODO: Can we load this config only from the rendered graph type?
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let url;
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if (arrowMarkerAbsolute) {
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url =
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window.location.protocol +
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'//' +
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window.location.host +
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window.location.pathname +
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window.location.search;
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url = url.replace(/\(/g, '\\(');
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url = url.replace(/\)/g, '\\)');
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}
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switch (edgeData.arrowTypeStart) {
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case 'arrow_cross':
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svgPath.attr('marker-start', 'url(' + url + '#' + diagramType + '-crossStart' + ')');
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break;
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case 'arrow_point':
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svgPath.attr('marker-start', 'url(' + url + '#' + diagramType + '-pointStart' + ')');
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break;
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case 'arrow_barb':
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svgPath.attr('marker-start', 'url(' + url + '#' + diagramType + '-barbStart' + ')');
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break;
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case 'arrow_circle':
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svgPath.attr('marker-start', 'url(' + url + '#' + diagramType + '-circleStart' + ')');
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break;
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case 'aggregation':
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svgPath.attr('marker-start', 'url(' + url + '#' + diagramType + '-aggregationStart' + ')');
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break;
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case 'extension':
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svgPath.attr('marker-start', 'url(' + url + '#' + diagramType + '-extensionStart' + ')');
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break;
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case 'composition':
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svgPath.attr('marker-start', 'url(' + url + '#' + diagramType + '-compositionStart' + ')');
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break;
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case 'dependency':
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svgPath.attr('marker-start', 'url(' + url + '#' + diagramType + '-dependencyStart' + ')');
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break;
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case 'lollipop':
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svgPath.attr('marker-start', 'url(' + url + '#' + diagramType + '-lollipopStart' + ')');
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break;
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default:
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}
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switch (edgeData.arrowTypeEnd) {
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case 'arrow_cross':
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svgPath.attr('marker-end', 'url(' + url + '#' + diagramType + '-crossEnd' + ')');
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break;
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case 'arrow_point':
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svgPath.attr('marker-end', 'url(' + url + '#' + diagramType + '-pointEnd' + ')');
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break;
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case 'arrow_barb':
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svgPath.attr('marker-end', 'url(' + url + '#' + diagramType + '-barbEnd' + ')');
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break;
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case 'arrow_circle':
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svgPath.attr('marker-end', 'url(' + url + '#' + diagramType + '-circleEnd' + ')');
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break;
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case 'aggregation':
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svgPath.attr('marker-end', 'url(' + url + '#' + diagramType + '-aggregationEnd' + ')');
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break;
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case 'extension':
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svgPath.attr('marker-end', 'url(' + url + '#' + diagramType + '-extensionEnd' + ')');
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break;
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case 'composition':
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svgPath.attr('marker-end', 'url(' + url + '#' + diagramType + '-compositionEnd' + ')');
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break;
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case 'dependency':
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svgPath.attr('marker-end', 'url(' + url + '#' + diagramType + '-dependencyEnd' + ')');
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break;
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case 'lollipop':
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svgPath.attr('marker-end', 'url(' + url + '#' + diagramType + '-lollipopEnd' + ')');
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break;
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default:
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}
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};
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/**
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* Returns the all the styles from classDef statements in the graph definition.
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*
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* @param text
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* @param diagObj
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* @returns {object} ClassDef styles
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*/
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export const getClasses = function (text, diagObj) {
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log.info('Extracting classes');
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diagObj.db.clear();
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try {
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// Parse the graph definition
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diagObj.parse(text);
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return diagObj.db.getClasses();
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} catch (e) {
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return;
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}
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};
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const addSubGraphs = function (cy, db) {
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const parentLookUpDb = {};
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const subgraphs = db.getSubGraphs();
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subgraphs.forEach(function (subgraph) {
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parentLookUpDb[subgraph.id] = subgraph.parent;
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});
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subgraphs.forEach(function (subgraph) {
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cy.add({
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group: 'nodes',
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data: { id: subgraph.id, parent: parentLookUpDb[subgraph.id], classes: 'flowchart-subgraph' },
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});
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});
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return parentLookUpDb;
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};
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const insertEdge = function (edgesEl, edge, edgeData, bounds, diagObj) {
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const src = edge.sourceEndpoint();
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const segments = edge.segmentPoints();
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// const dest = edge.target().position();
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const dest = edge.targetEndpoint();
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const segPoints = segments.map((segment) => [segment.x, segment.y]);
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const points = [
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[src.x, src.y],
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[segments[0].x, segments[0].y],
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[dest.x, dest.y],
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];
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// console.log('Edge ctrl points:', edge.segmentPoints(), 'Bounds:', bounds, edge.source(), points);
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// console.log('Edge ctrl points:', points);
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const curve = line().curve(curveCardinal);
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const edge2 = edgesEl
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.insert('path')
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.attr('d', curve(points))
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.attr('class', 'path')
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.attr('fill', 'none');
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addmarkers(edge2, edgeData, diagObj.type, diagObj.arrowMarkerAbsolute);
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// edgesEl
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// .append('circle')
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// .style('stroke', 'red')
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// .style('fill', 'red')
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// .attr('r', 1)
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// .attr('cx', src.x)
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// .attr('cy', src.y);
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// edgesEl
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// .append('circle')
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// .style('stroke', 'white')
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// .style('fill', 'white')
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// .attr('r', 1)
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// .attr('cx', segments[0].x)
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// .attr('cy', segments[0].y);
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// edgesEl
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// .append('circle')
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// .style('stroke', 'pink')
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// .style('fill', 'pink')
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// .attr('r', 1)
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// .attr('cx', dest.x)
|
|
// .attr('cy', dest.y);
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};
|
|
|
|
/**
|
|
* Draws a flowchart in the tag with id: id based on the graph definition in text.
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|
*
|
|
* @param text
|
|
* @param id
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|
*/
|
|
|
|
export const draw = function (text, id, _version, diagObj) {
|
|
// Add temporary render element
|
|
|
|
return new Promise(function (resolve, reject) {
|
|
const renderEl = select('body').append('div').attr('style', 'height:400px').attr('id', 'cy');
|
|
// .attr('style', 'display:none')
|
|
const cy = cytoscape({
|
|
styleEnabled: true,
|
|
// animate: false,
|
|
// ready: function () {
|
|
// log.info('Ready', this);
|
|
// },
|
|
container: document.getElementById('cy'), // container to render in
|
|
elements: [],
|
|
style: [
|
|
{
|
|
selector: 'edge',
|
|
style: {
|
|
'curve-style': 'segments',
|
|
// 'curve-style': 'bezier',
|
|
// 'segment-weights': '0.5',
|
|
// 'segment-distances': '0',
|
|
'edge-distances': 'node-position',
|
|
|
|
// 'source-endpoint': '180deg',
|
|
// 'target-endpoint': '0deg',
|
|
},
|
|
// 'edge-distance': 'intersection',
|
|
},
|
|
// {
|
|
// selector: 'node',
|
|
// style: {
|
|
// width: 70,
|
|
// height: 100,
|
|
// },
|
|
// },
|
|
],
|
|
});
|
|
log.info('Drawing flowchart using v3 renderer');
|
|
// Fetch the default direction, use TD if none was found
|
|
let dir = diagObj.db.getDirection();
|
|
if (dir === undefined) {
|
|
dir = 'TD';
|
|
}
|
|
|
|
const { securityLevel, flowchart: conf } = getConfig();
|
|
|
|
// Handle root and document for when rendering in sandbox mode
|
|
let sandboxElement;
|
|
if (securityLevel === 'sandbox') {
|
|
sandboxElement = select('#i' + id);
|
|
}
|
|
const root =
|
|
securityLevel === 'sandbox'
|
|
? select(sandboxElement.nodes()[0].contentDocument.body)
|
|
: select('body');
|
|
const doc = securityLevel === 'sandbox' ? sandboxElement.nodes()[0].contentDocument : document;
|
|
|
|
const svg = root.select(`[id="${id}"]`);
|
|
const markers = ['point', 'circle', 'cross'];
|
|
insertMarkers(svg, markers, diagObj.type, diagObj.arrowMarkerAbsolute);
|
|
// Fetch the vertices/nodes and edges/links from the parsed graph definition
|
|
const vert = diagObj.db.getVertices();
|
|
const parentLookUpDb = addSubGraphs(cy, diagObj.db);
|
|
addVertices(vert, cy, id, root, doc, diagObj, parentLookUpDb);
|
|
const edgesEl = svg.insert('g').attr('class', 'edges edgePath');
|
|
const edges = diagObj.db.getEdges();
|
|
addEdges(edges, cy, diagObj);
|
|
|
|
// c.style();
|
|
// Make cytoscape care about the dimensions of the nodes
|
|
cy.nodes().forEach(function (n) {
|
|
const boundingBox = n.data().boundingBox;
|
|
if (boundingBox) {
|
|
n.style('width', boundingBox.width);
|
|
n.style('height', boundingBox.height);
|
|
}
|
|
n.style('shape', 'square');
|
|
n.layoutDimensions = () => {
|
|
// console.log('Node dimensions', boundingBox.width, boundingBox.height);
|
|
if (boundingBox) {
|
|
return { w: boundingBox.width, h: boundingBox.height };
|
|
}
|
|
// return { w: boundingBox.width, h: boundingBox.height };
|
|
|
|
// const data = n.data();
|
|
// return { w: data.width, h: data.height };
|
|
|
|
return { w: 206, h: 160 };
|
|
};
|
|
});
|
|
|
|
cy.layout({
|
|
// name: 'grid',
|
|
name: 'preset',
|
|
// name: 'cose',
|
|
// name: 'circle',
|
|
// name: 'concentric',
|
|
headless: true,
|
|
styleEnabled: false,
|
|
animate: false,
|
|
}).run();
|
|
// log.info('Positions', cy.nodes().positions());
|
|
window.cy = cy;
|
|
cy.ready((e) => {
|
|
log.info('Ready', e);
|
|
// setTimeout(() => {
|
|
cy.nodes().map((node, id) => {
|
|
const data = node.data();
|
|
|
|
log.info(
|
|
'Position: (',
|
|
node.position().x,
|
|
', ',
|
|
node.position().y,
|
|
')',
|
|
data,
|
|
cy.elements()[0].renderedBoundingBox()
|
|
);
|
|
if (data.el) {
|
|
data.el.attr('transform', `translate(${node.position().x}, ${node.position().y})`);
|
|
// document
|
|
// .querySelector(`[id="${data.domId}"]`)
|
|
// .setAttribute('transform', `translate(${node.position().x}, ${node.position().y})`);
|
|
log.info('Id = ', data.domId, svg.select(`[id="${data.domId}"]`), data.el.node());
|
|
}
|
|
// else {
|
|
// // console.log('No element found for node', data, node.position(), node.size());
|
|
// }
|
|
});
|
|
|
|
cy.edges().map((edge, id) => {
|
|
const data = edge.data();
|
|
if (edge[0]._private.bodyBounds) {
|
|
const bounds = edge[0]._private.rscratch;
|
|
insertEdge(edgesEl, edge, data.edgeData, bounds, diagObj);
|
|
}
|
|
});
|
|
|
|
log.info(cy.json());
|
|
setupGraphViewbox({}, svg, conf.diagramPadding, conf.useMaxWidth);
|
|
// Remove element after layout
|
|
// renderEl.remove();
|
|
resolve();
|
|
// }, 500);
|
|
});
|
|
});
|
|
};
|
|
|
|
export default {
|
|
// setConf,
|
|
// addVertices,
|
|
// addEdges,
|
|
getClasses,
|
|
draw,
|
|
};
|