// Load custom shapes into CanvasRenderingContext2D require('./shapes'); let Emitter = require('emitter-component'); let Hammer = require('../module/hammer'); let util = require('../util'); let DataSet = require('../DataSet'); let DataView = require('../DataView'); let dotparser = require('./dotparser'); let gephiParser = require('./gephiParser'); let Images = require('./Images'); let Activator = require('../shared/Activator'); let locales = require('./locales'); import Groups from './modules/Groups'; import NodesHandler from './modules/NodesHandler'; import EdgesHandler from './modules/EdgesHandler'; import PhysicsEngine from './modules/PhysicsEngine'; import ClusterEngine from './modules/Clustering'; import CanvasRenderer from './modules/CanvasRenderer'; import Canvas from './modules/Canvas'; import View from './modules/View'; import InteractionHandler from './modules/InteractionHandler'; import SelectionHandler from "./modules/SelectionHandler"; import LayoutEngine from "./modules/LayoutEngine"; import ManipulationSystem from "./modules/ManipulationSystem"; import ConfigurationSystem from "./../shared/ConfigurationSystem"; import Validator from "./../shared/Validator"; import {printStyle} from "./../shared/Validator"; import {allOptions, configureOptions} from './options.js'; /** * @constructor Network * Create a network visualization, displaying nodes and edges. * * @param {Element} container The DOM element in which the Network will * be created. Normally a div element. * @param {Object} data An object containing parameters * {Array} nodes * {Array} edges * @param {Object} options Options */ function Network(container, data, options) { if (!(this instanceof Network)) { throw new SyntaxError('Constructor must be called with the new operator'); } // set constant values this.options = {}; this.defaultOptions = { locale: 'en', locales: locales, clickToUse: false }; util.extend(this.options, this.defaultOptions); // containers for nodes and edges this.body = { nodes: {}, nodeIndices: [], edges: {}, edgeIndices: [], data: { nodes: null, // A DataSet or DataView edges: null // A DataSet or DataView }, functions: { createNode: function() {}, createEdge: function() {}, getPointer: function() {} }, emitter: { on: this.on.bind(this), off: this.off.bind(this), emit: this.emit.bind(this), once: this.once.bind(this) }, eventListeners: { onTap: function() {}, onTouch: function() {}, onDoubleTap: function() {}, onHold: function() {}, onDragStart: function() {}, onDrag: function() {}, onDragEnd: function() {}, onMouseWheel: function() {}, onPinch: function() {}, onMouseMove: function() {}, onRelease: function() {}, onContext: function() {} }, container: container, view: { scale: 1, translation: {x: 0, y: 0} } }; // bind the event listeners this.bindEventListeners(); // setting up all modules this.images = new Images(() => this.body.emitter.emit("_requestRedraw")); // object with images this.groups = new Groups(); // object with groups this.canvas = new Canvas(this.body); // DOM handler this.selectionHandler = new SelectionHandler(this.body, this.canvas); // Selection handler this.interactionHandler = new InteractionHandler(this.body, this.canvas, this.selectionHandler); // Interaction handler handles all the hammer bindings (that are bound by canvas), key this.view = new View(this.body, this.canvas); // camera handler, does animations and zooms this.renderer = new CanvasRenderer(this.body, this.canvas); // renderer, starts renderloop, has events that modules can hook into this.physics = new PhysicsEngine(this.body); // physics engine, does all the simulations this.layoutEngine = new LayoutEngine(this.body); // layout engine for inital layout and hierarchical layout this.clustering = new ClusterEngine(this.body); // clustering api this.manipulation = new ManipulationSystem(this.body, this.canvas, this.selectionHandler); // data manipulation system this.nodesHandler = new NodesHandler(this.body, this.images, this.groups, this.layoutEngine); // Handle adding, deleting and updating of nodes as well as global options this.edgesHandler = new EdgesHandler(this.body, this.images, this.groups); // Handle adding, deleting and updating of edges as well as global options // create the DOM elements this.canvas._create(); // setup configuration system this.configurationSystem = new ConfigurationSystem(this, this.body.container, configureOptions, this.canvas.pixelRatio); // apply options this.setOptions(options); // load data (the disable start variable will be the same as the enabled clustering) this.setData(data); } // Extend Network with an Emitter mixin Emitter(Network.prototype); /** * Set options * @param {Object} options */ Network.prototype.setOptions = function (options) { if (options !== undefined) { let errorFound = Validator.validate(options, allOptions); if (errorFound === true) { console.log('%cErrors have been found in the supplied options object.', printStyle); } // copy the global fields over let fields = ['locale','locales','clickToUse']; util.selectiveDeepExtend(fields,this.options, options); // the hierarchical system can adapt the edges and the physics to it's own options because not all combinations work with the hierarichical system. options = this.layoutEngine.setOptions(options.layout, options); this.canvas.setOptions(options); // options for canvas are in globals // pass the options to the modules this.groups.setOptions(options.groups); this.nodesHandler.setOptions(options.nodes); this.edgesHandler.setOptions(options.edges); this.physics.setOptions(options.physics); this.manipulation.setOptions(options.manipulation,options); // manipulation uses the locales in the globals this.interactionHandler.setOptions(options.interaction); this.renderer.setOptions(options.interaction); // options for rendering are in interaction this.selectionHandler.setOptions(options.interaction); // options for selection are in interaction // these two do not have options at the moment, here for completeness //this.view.setOptions(options.view); //this.clustering.setOptions(options.clustering); this.configurationSystem.setOptions(options.configure); // if the configuration system is enabled, copy all options and put them into the config system if (this.configurationSystem.options.enabled === true) { let networkOptions = {nodes:{},edges:{},layout:{},interaction:{},manipulation:{},physics:{},global:{}}; util.deepExtend(networkOptions.nodes, this.nodesHandler.options); util.deepExtend(networkOptions.edges, this.edgesHandler.options); util.deepExtend(networkOptions.layout, this.layoutEngine.options); // load the selectionHandler and rendere default options in to the interaction group util.deepExtend(networkOptions.interaction, this.selectionHandler.options); util.deepExtend(networkOptions.interaction, this.renderer.options); util.deepExtend(networkOptions.interaction, this.interactionHandler.options); util.deepExtend(networkOptions.manipulation, this.manipulation.options); util.deepExtend(networkOptions.physics, this.physics.options); // load globals into the global object util.deepExtend(networkOptions.global, this.canvas.options); util.deepExtend(networkOptions.global, this.options); this.configurationSystem.setModuleOptions(networkOptions); } // handle network global options if (options.clickToUse !== undefined) { if (options.clickToUse === true) { if (this.activator === undefined) { this.activator = new Activator(this.frame); this.activator.on('change', this._createKeyBinds.bind(this)); } } else { if (this.activator !== undefined) { this.activator.destroy(); delete this.activator; } this.body.emitter.emit("activate"); } } else { this.body.emitter.emit("activate"); } this.canvas.setSize(); // start the physics simulation. Can be safely called multiple times. this.body.emitter.emit("startSimulation"); } }; /** * Update the this.body.nodeIndices with the most recent node index list * @private */ Network.prototype._updateVisibleIndices = function () { let nodes = this.body.nodes; let edges = this.body.edges; this.body.nodeIndices = []; this.body.edgeIndices = []; for (let nodeId in nodes) { if (nodes.hasOwnProperty(nodeId)) { if (nodes[nodeId].options.hidden === false) { this.body.nodeIndices.push(nodeId); } } } for (let edgeId in edges) { if (edges.hasOwnProperty(edgeId)) { if (edges[edgeId].options.hidden === false) { this.body.edgeIndices.push(edgeId); } } } }; /** * Bind all events */ Network.prototype.bindEventListeners = function () { // this event will trigger a rebuilding of the cache everything. Used when nodes or edges have been added or removed. this.body.emitter.on("_dataChanged", () => { // update shortcut lists this._updateVisibleIndices(); this.physics.updatePhysicsIndices(); // call the dataUpdated event because the only difference between the two is the updating of the indices this.body.emitter.emit("_dataUpdated"); }); // this is called when options of EXISTING nodes or edges have changed. this.body.emitter.on("_dataUpdated", () => { // update values this._updateValueRange(this.body.nodes); this._updateValueRange(this.body.edges); // start simulation (can be called safely, even if already running) this.body.emitter.emit("startSimulation"); }); }; /** * Set nodes and edges, and optionally options as well. * * @param {Object} data Object containing parameters: * {Array | DataSet | DataView} [nodes] Array with nodes * {Array | DataSet | DataView} [edges] Array with edges * {String} [dot] String containing data in DOT format * {String} [gephi] String containing data in gephi JSON format * {Options} [options] Object with options */ Network.prototype.setData = function (data) { // reset the physics engine. this.body.emitter.emit("resetPhysics"); this.body.emitter.emit("_resetData"); // unselect all to ensure no selections from old data are carried over. this.selectionHandler.unselectAll(); if (data && data.dot && (data.nodes || data.edges)) { throw new SyntaxError('Data must contain either parameter "dot" or ' + ' parameter pair "nodes" and "edges", but not both.'); } // set options this.setOptions(data && data.options); // set all data if (data && data.dot) { // parse DOT file if (data && data.dot) { var dotData = dotparser.DOTToGraph(data.dot); this.setData(dotData); return; } } else if (data && data.gephi) { // parse DOT file if (data && data.gephi) { var gephiData = gephiParser.parseGephi(data.gephi); this.setData(gephiData); return; } } else { this.nodesHandler.setData(data && data.nodes, true); this.edgesHandler.setData(data && data.edges, true); } // emit change in data this.body.emitter.emit("_dataChanged"); // find a stable position or start animating to a stable position this.body.emitter.emit("initPhysics"); }; /** * Cleans up all bindings of the network, removing it fully from the memory IF the variable is set to null after calling this function. * var network = new vis.Network(..); * network.destroy(); * network = null; */ Network.prototype.destroy = function () { this.body.emitter.emit("destroy"); // clear events this.body.emitter.off(); this.off(); // delete modules delete this.groups; delete this.canvas; delete this.selectionHandler; delete this.interactionHandler; delete this.view; delete this.renderer; delete this.physics; delete this.layoutEngine; delete this.clustering; delete this.manipulation; delete this.nodesHandler; delete this.edgesHandler; delete this.configurationSystem; delete this.images; // delete emitter bindings delete this.body.emitter.emit; delete this.body.emitter.on; delete this.body.emitter.off; delete this.body.emitter.once; delete this.body.emitter; for (var nodeId in this.body.nodes) { delete this.body.nodes[nodeId]; } for (var edgeId in this.body.edges) { delete this.body.edges[edgeId]; } // remove the container and everything inside it recursively util.recursiveDOMDelete(this.body.container); }; /** * Update the values of all object in the given array according to the current * value range of the objects in the array. * @param {Object} obj An object containing a set of Edges or Nodes * The objects must have a method getValue() and * setValueRange(min, max). * @private */ Network.prototype._updateValueRange = function (obj) { var id; // determine the range of the objects var valueMin = undefined; var valueMax = undefined; var valueTotal = 0; for (id in obj) { if (obj.hasOwnProperty(id)) { var value = obj[id].getValue(); if (value !== undefined) { valueMin = (valueMin === undefined) ? value : Math.min(value, valueMin); valueMax = (valueMax === undefined) ? value : Math.max(value, valueMax); valueTotal += value; } } } // adjust the range of all objects if (valueMin !== undefined && valueMax !== undefined) { for (id in obj) { if (obj.hasOwnProperty(id)) { obj[id].setValueRange(valueMin, valueMax, valueTotal); } } } }; /** * Returns true when the Network is active. * @returns {boolean} */ Network.prototype.isActive = function () { return !this.activator || this.activator.active; }; Network.prototype.setSize = function() {this.canvas.setSize.apply(this.canvas,arguments);}; Network.prototype.canvasToDOM = function() {this.canvas.canvasToDOM.apply(this.canvas,arguments);}; Network.prototype.DOMtoCanvas = function() {this.canvas.setSize.DOMtoCanvas(this.canvas,arguments);}; Network.prototype.findNode = function() {this.clustering.findNode.apply(this.clustering,arguments);}; Network.prototype.isCluster = function() {this.clustering.isCluster.apply(this.clustering,arguments);}; Network.prototype.openCluster = function() {this.clustering.openCluster.apply(this.clustering,arguments);}; Network.prototype.cluster = function() {this.clustering.cluster.apply(this.clustering,arguments);}; Network.prototype.clusterByConnection = function() {this.clustering.clusterByConnection.apply(this.clustering,arguments);}; Network.prototype.clusterByHubsize = function() {this.clustering.clusterByHubsize.apply(this.clustering,arguments);}; Network.prototype.clusterOutliers = function() {this.clustering.clusterOutliers.apply(this.clustering,arguments);}; Network.prototype.getSeed = function() {this.layoutEngine.getSeed.apply(this.layoutEngine,arguments);}; Network.prototype.enableEditMode = function() {this.manipulation.enableEditMode.apply(this.manipulation,arguments);}; Network.prototype.disableEditMode = function() {this.manipulation.disableEditMode.apply(this.manipulation,arguments);}; Network.prototype.addNodeMode = function() {this.manipulation.addNodeMode.apply(this.manipulation,arguments);}; Network.prototype.editNodeMode = function() {this.manipulation.editNodeMode.apply(this.manipulation,arguments);}; Network.prototype.addEdgeMode = function() {this.manipulation.addEdgeMode.apply(this.manipulation,arguments);}; Network.prototype.editEdgeMode = function() {this.manipulation.editEdgeMode.apply(this.manipulation,arguments);}; Network.prototype.deleteSelected = function() {this.manipulation.deleteSelected.apply(this.manipulation,arguments);}; Network.prototype.getPositions = function() {this.nodesHandler.getPositions.apply(this.nodesHandler,arguments);}; Network.prototype.storePositions = function() {this.nodesHandler.storePositions.apply(this.nodesHandler,arguments);}; Network.prototype.getBoundingBox = function() {this.nodesHandler.getBoundingBox.apply(this.nodesHandler,arguments);}; Network.prototype.getConnectedNodes = function() {this.nodesHandler.getConnectedNodes.apply(this.nodesHandler,arguments);}; Network.prototype.getEdges = function() {this.nodesHandler.getEdges.apply(this.nodesHandler,arguments);}; Network.prototype.startSimulation = function() {this.physics.startSimulation.apply(this.physics,arguments);}; Network.prototype.stopSimulation = function() {this.physics.stopSimulation.apply(this.physics,arguments);}; Network.prototype.stabilize = function() {this.physics.stabilize.apply(this.physics,arguments);}; Network.prototype.getSelection = function() {this.selectionHandler.getSelection.apply(this.selectionHandler,arguments);}; Network.prototype.getSelectedNodes = function() {this.selectionHandler.getSelectedNodes.apply(this.selectionHandler,arguments);}; Network.prototype.getSelectedEdges = function() {this.selectionHandler.getSelectedEdges.apply(this.selectionHandler,arguments);}; Network.prototype.getNodeAt = function() {this.selectionHandler.getNodeAt.apply(this.selectionHandler,arguments);}; Network.prototype.getEdgeAt = function() {this.selectionHandler.getEdgeAt.apply(this.selectionHandler,arguments);}; Network.prototype.selectNodes = function() {this.selectionHandler.selectNodes.apply(this.selectionHandler,arguments);}; Network.prototype.selectEdges = function() {this.selectionHandler.selectEdges.apply(this.selectionHandler,arguments);}; Network.prototype.unselectAll = function() {this.selectionHandler.unselectAll.apply(this.selectionHandler,arguments);}; Network.prototype.redraw = function() {this.renderer.redraw.apply(this.renderer,arguments);}; Network.prototype.getScale = function() {this.view.getScale.apply(this.view,arguments);}; Network.prototype.getPosition = function() {this.view.getPosition.apply(this.view,arguments);}; Network.prototype.fit = function() {this.view.fit.apply(this.view,arguments);}; Network.prototype.moveTo = function() {this.view.moveTo.apply(this.view,arguments);}; Network.prototype.focus = function() {this.view.focus.apply(this.view,arguments);}; Network.prototype.releaseNode = function() {this.view.releaseNode.apply(this.view,arguments);}; module.exports = Network;