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1121 lines
35 KiB
1121 lines
35 KiB
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let util = require('../../util');
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let Hammer = require('../../module/hammer');
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let hammerUtil = require('../../hammerUtil');
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let locales = require('../locales');
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/**
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* clears the toolbar div element of children
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*
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* @private
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*/
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class ManipulationSystem {
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constructor(body, canvas, selectionHandler) {
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this.body = body;
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this.canvas = canvas;
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this.selectionHandler = selectionHandler;
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this.editMode = false;
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this.manipulationDiv = undefined;
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this.editModeDiv = undefined;
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this.closeDiv = undefined;
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this.manipulationHammers = [];
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this.temporaryUIFunctions = {};
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this.temporaryEventFunctions = [];
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this.touchTime = 0;
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this.temporaryIds = {nodes: [], edges:[]};
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this.guiEnabled = false;
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this.inMode = false;
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this.selectedControlNode = undefined;
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this.options = {};
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this.defaultOptions = {
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enabled: false,
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initiallyActive: false,
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locale: 'en',
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locales: locales,
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addNode: true,
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addEdge: true,
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editNode: undefined,
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editEdge: true,
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deleteNode: true,
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deleteEdge: true,
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controlNodeStyle:{
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shape:'dot',
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size:6,
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color: {background: '#ff0000', border: '#3c3c3c', highlight: {background: '#07f968', border: '#3c3c3c'}},
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borderWidth: 2,
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borderWidthSelected: 2
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}
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}
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util.extend(this.options, this.defaultOptions);
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this.body.emitter.on('destroy', () => {this._clean();});
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this.body.emitter.on('_dataChanged',this._restore.bind(this));
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this.body.emitter.on('_resetData', this._restore.bind(this));
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}
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/**
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* If something changes in the data during editing, switch back to the initial datamanipulation state and close all edit modes.
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* @private
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*/
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_restore() {
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if (this.inMode !== false) {
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if (this.options.initiallyActive === true) {
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this.enableEditMode();
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}
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else {
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this.disableEditMode();
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}
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}
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}
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/**
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* Set the Options
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* @param options
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*/
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setOptions(options) {
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if (options !== undefined) {
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if (typeof options === 'boolean') {
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this.options.enabled = options;
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}
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else {
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this.options.enabled = true;
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util.deepExtend(this.options, options);
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}
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if (this.options.initiallyActive === true) {
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this.editMode = true;
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}
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this._setup();
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}
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}
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/**
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* Enable or disable edit-mode. Draws the DOM required and cleans up after itself.
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*
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* @private
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*/
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toggleEditMode() {
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if (this.editMode === true) {
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this.disableEditMode();
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}
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else {
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this.enableEditMode();
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}
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}
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enableEditMode() {
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this.editMode = true;
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this._clean();
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if (this.guiEnabled === true) {
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this.manipulationDiv.style.display = 'block';
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this.closeDiv.style.display = 'block';
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this.editModeDiv.style.display = 'none';
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this.showManipulatorToolbar();
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}
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}
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disableEditMode() {
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this.editMode = false;
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this._clean();
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if (this.guiEnabled === true) {
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this.manipulationDiv.style.display = 'none';
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this.closeDiv.style.display = 'none';
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this.editModeDiv.style.display = 'block';
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this._createEditButton();
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}
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}
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/**
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* Creates the main toolbar. Removes functions bound to the select event. Binds all the buttons of the toolbar.
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*
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* @private
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*/
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showManipulatorToolbar() {
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// restore the state of any bound functions or events, remove control nodes, restore physics
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this._clean();
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// reset global letiables
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this.manipulationDOM = {};
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// if the gui is enabled, draw all elements.
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if (this.guiEnabled === true) {
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// a _restore will hide these menus
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this.editMode = true;
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this.manipulationDiv.style.display = 'block';
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this.closeDiv.style.display = 'block';
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let selectedNodeCount = this.selectionHandler._getSelectedNodeCount();
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let selectedEdgeCount = this.selectionHandler._getSelectedEdgeCount();
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let selectedTotalCount = selectedNodeCount + selectedEdgeCount;
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let locale = this.options.locales[this.options.locale];
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let needSeperator = false;
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if (this.options.addNode !== false) {
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this._createAddNodeButton(locale);
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needSeperator = true;
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}
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if (this.options.addEdge !== false) {
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if (needSeperator === true) {
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this._createSeperator(1);
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} else {
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needSeperator = true;
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}
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this._createAddEdgeButton(locale);
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}
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if (selectedNodeCount === 1 && typeof this.options.editNode === 'function') {
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if (needSeperator === true) {
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this._createSeperator(2);
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} else {
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needSeperator = true;
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}
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this._createEditNodeButton(locale);
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}
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else if (selectedEdgeCount === 1 && selectedNodeCount === 0 && this.options.editEdge !== false) {
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if (needSeperator === true) {
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this._createSeperator(3);
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} else {
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needSeperator = true;
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}
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this._createEditEdgeButton(locale);
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}
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// remove buttons
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if (selectedTotalCount !== 0) {
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if (selectedNodeCount === 1 && this.options.deleteNode !== false) {
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if (needSeperator === true) {
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this._createSeperator(4);
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}
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this._createDeleteButton(locale);
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}
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else if (selectedNodeCount === 0 && this.options.deleteEdge !== false) {
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if (needSeperator === true) {
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this._createSeperator(4);
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}
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this._createDeleteButton(locale);
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}
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}
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// bind the close button
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this._bindHammerToDiv(this.closeDiv, this.toggleEditMode.bind(this));
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// refresh this bar based on what has been selected
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this._temporaryBindEvent('select', this.showManipulatorToolbar.bind(this));
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}
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// redraw to show any possible changes
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this.body.emitter.emit('_redraw');
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}
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/**
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* Create the toolbar for adding Nodes
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*
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* @private
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*/
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addNodeMode() {
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// when using the gui, enable edit mode if it wasnt already.
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if (this.editMode !== true) {
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this.enableEditMode();
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}
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// restore the state of any bound functions or events, remove control nodes, restore physics
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this._clean();
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this.inMode = 'addNode';
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if (this.guiEnabled === true) {
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let locale = this.options.locales[this.options.locale];
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this.manipulationDOM = {};
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this._createBackButton(locale);
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this._createSeperator();
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this._createDescription(locale['addDescription'])
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// bind the close button
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this._bindHammerToDiv(this.closeDiv, this.toggleEditMode.bind(this));
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}
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this._temporaryBindEvent('click', this._performAddNode.bind(this));
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}
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/**
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* call the bound function to handle the editing of the node. The node has to be selected.
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*
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* @private
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*/
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editNodeMode() {
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// when using the gui, enable edit mode if it wasnt already.
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if (this.editMode !== true) {
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this.enableEditMode();
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}
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// restore the state of any bound functions or events, remove control nodes, restore physics
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this._clean();
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this.inMode = 'editNode';
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if (typeof this.options.editNode === 'function') {
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let node = this.selectionHandler._getSelectedNode();
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if (node.isCluster !== true) {
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let data = util.deepExtend({}, node.options, true);
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data.x = node.x;
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data.y = node.y;
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if (this.options.editNode.length === 2) {
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this.options.editNode(data, (finalizedData) => {
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if (finalizedData !== null && finalizedData !== undefined && this.inMode === 'delete') { // if for whatever reason the mode has changes (due to dataset change) disregard the callback) {
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this.body.data.nodes.update(finalizedData);
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this.showManipulatorToolbar();
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}
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});
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}
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else {
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throw new Error('The function for edit does not support two arguments (data, callback)');
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}
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}
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else {
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alert(this.options.locales[this.options.locale]['editClusterError']);
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}
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}
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else {
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throw new Error('No function has been configured to handle the editing of nodes.');
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}
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}
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/**
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* create the toolbar to connect nodes
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*
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* @private
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*/
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addEdgeMode() {
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// when using the gui, enable edit mode if it wasnt already.
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if (this.editMode !== true) {
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this.enableEditMode();
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}
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// restore the state of any bound functions or events, remove control nodes, restore physics
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this._clean();
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this.inMode = 'addEdge';
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if (this.guiEnabled === true) {
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let locale = this.options.locales[this.options.locale];
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this.manipulationDOM = {};
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this._createBackButton(locale);
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this._createSeperator();
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this._createDescription(locale['edgeDescription']);
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// bind the close button
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this._bindHammerToDiv(this.closeDiv, this.toggleEditMode.bind(this));
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}
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// temporarily overload functions
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this._temporaryBindUI('onTouch', this._handleConnect.bind(this));
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this._temporaryBindUI('onDragEnd', this._finishConnect.bind(this));
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this._temporaryBindUI('onDrag', this._dragControlNode.bind(this));
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this._temporaryBindUI('onRelease', this._finishConnect.bind(this));
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this._temporaryBindUI('onDragStart', () => {});
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this._temporaryBindUI('onHold', () => {});
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}
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/**
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* create the toolbar to edit edges
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*
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* @private
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*/
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editEdgeMode() {
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// when using the gui, enable edit mode if it wasnt already.
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if (this.editMode !== true) {
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this.enableEditMode();
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}
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// restore the state of any bound functions or events, remove control nodes, restore physics
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this._clean();
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this.inMode = 'editEdge';
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if (this.guiEnabled === true) {
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let locale = this.options.locales[this.options.locale];
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this.manipulationDOM = {};
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this._createBackButton(locale);
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this._createSeperator();
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this._createDescription(locale['editEdgeDescription']);
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// bind the close button
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this._bindHammerToDiv(this.closeDiv, this.toggleEditMode.bind(this));
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}
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this.edgeBeingEditedId = this.selectionHandler.getSelectedEdges()[0];
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let edge = this.body.edges[this.edgeBeingEditedId];
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// create control nodes
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let controlNodeFrom = this._getNewTargetNode(edge.from.x, edge.from.y);
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let controlNodeTo = this._getNewTargetNode(edge.to.x, edge.to.y);
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this.temporaryIds.nodes.push(controlNodeFrom.id);
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this.temporaryIds.nodes.push(controlNodeTo.id);
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this.body.nodes[controlNodeFrom.id] = controlNodeFrom;
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this.body.nodeIndices.push(controlNodeFrom.id);
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this.body.nodes[controlNodeTo.id] = controlNodeTo;
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this.body.nodeIndices.push(controlNodeTo.id);
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// temporarily overload UI functions, cleaned up automatically because of _temporaryBindUI
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this._temporaryBindUI('onTouch', this._controlNodeTouch.bind(this)); // used to get the position
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this._temporaryBindUI('onTap', () => {}); // disabled
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this._temporaryBindUI('onHold', () => {}); // disabled
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this._temporaryBindUI('onDragStart', this._controlNodeDragStart.bind(this));// used to select control node
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this._temporaryBindUI('onDrag', this._controlNodeDrag.bind(this)); // used to drag control node
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this._temporaryBindUI('onDragEnd', this._controlNodeDragEnd.bind(this)); // used to connect or revert control nodes
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this._temporaryBindUI('onMouseMove', () => {}); // disabled
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// create function to position control nodes correctly on movement
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// automatically cleaned up because we use the temporary bind
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this._temporaryBindEvent('beforeDrawing', (ctx) => {
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let positions = edge.edgeType.findBorderPositions(ctx);
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if (controlNodeFrom.selected === false) {
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controlNodeFrom.x = positions.from.x;
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controlNodeFrom.y = positions.from.y;
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}
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if (controlNodeTo.selected === false) {
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controlNodeTo.x = positions.to.x;
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controlNodeTo.y = positions.to.y;
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}
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});
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this.body.emitter.emit('_redraw');
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}
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/**
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* delete everything in the selection
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*
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* @private
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*/
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deleteSelected() {
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// when using the gui, enable edit mode if it wasnt already.
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if (this.editMode !== true) {
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this.enableEditMode();
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}
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// restore the state of any bound functions or events, remove control nodes, restore physics
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this._clean();
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this.inMode = 'delete';
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let selectedNodes = this.selectionHandler.getSelectedNodes();
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let selectedEdges = this.selectionHandler.getSelectedEdges();
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let deleteFunction = undefined;
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if (selectedNodes.length > 0) {
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for (let i = 0; i < selectedNodes.length; i++) {
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if (this.body.nodes[selectedNodes[i]].isCluster === true) {
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alert(this.options.locales[this.options.locale]['deleteClusterError']);
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return;
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}
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}
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if (typeof this.options.deleteNode === 'function') {
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deleteFunction = this.options.deleteNode;
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}
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}
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else if (selectedEdges.length > 0) {
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if (typeof this.options.deleteEdge === 'function') {
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deleteFunction = this.options.deleteEdge;
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}
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}
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if (typeof deleteFunction === 'function') {
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let data = {nodes: selectedNodes, edges: selectedEdges};
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if (deleteFunction.length === 2) {
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deleteFunction(data, (finalizedData) => {
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if (finalizedData !== null && finalizedData !== undefined && this.inMode === 'delete') { // if for whatever reason the mode has changes (due to dataset change) disregard the callback) {
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this.body.data.edges.remove(finalizedData.edges);
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this.body.data.nodes.remove(finalizedData.nodes);
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this.body.emitter.emit('startSimulation');
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}
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});
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}
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else {
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throw new Error('The function for delete does not support two arguments (data, callback)')
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}
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}
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else {
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this.body.data.edges.remove(selectedEdges);
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this.body.data.nodes.remove(selectedNodes);
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this.body.emitter.emit('startSimulation');
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}
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}
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//********************************************** PRIVATE ***************************************//
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/**
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* draw or remove the DOM
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* @private
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*/
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_setup() {
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if (this.options.enabled === true) {
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// Enable the GUI
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this.guiEnabled = true;
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this._createWrappers();
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if (this.editMode === false) {
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this._createEditButton();
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}
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else {
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this.showManipulatorToolbar();
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}
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}
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else {
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this._removeManipulationDOM();
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// disable the gui
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this.guiEnabled = false;
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}
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}
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/**
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* create the div overlays that contain the DOM
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* @private
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*/
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_createWrappers() {
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// load the manipulator HTML elements. All styling done in css.
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if (this.manipulationDiv === undefined) {
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this.manipulationDiv = document.createElement('div');
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this.manipulationDiv.className = 'vis-manipulation';
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if (this.editMode === true) {
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this.manipulationDiv.style.display = 'block';
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}
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else {
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this.manipulationDiv.style.display = 'none';
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}
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this.canvas.frame.appendChild(this.manipulationDiv);
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}
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// container for the edit button.
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if (this.editModeDiv === undefined) {
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this.editModeDiv = document.createElement('div');
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this.editModeDiv.className = 'vis-edit-mode';
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if (this.editMode === true) {
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this.editModeDiv.style.display = 'none';
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}
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else {
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this.editModeDiv.style.display = 'block';
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}
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this.canvas.frame.appendChild(this.editModeDiv);
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}
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|
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// container for the close div button
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if (this.closeDiv === undefined) {
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this.closeDiv = document.createElement('div');
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this.closeDiv.className = 'vis-close';
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this.closeDiv.style.display = this.manipulationDiv.style.display;
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this.canvas.frame.appendChild(this.closeDiv);
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}
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}
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/**
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* generate a new target node. Used for creating new edges and editing edges
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* @param x
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* @param y
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* @returns {*}
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* @private
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|
*/
|
|
_getNewTargetNode(x,y) {
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let controlNodeStyle = util.deepExtend({}, this.options.controlNodeStyle);
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controlNodeStyle.id = 'targetNode' + util.randomUUID();
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controlNodeStyle.hidden = false;
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controlNodeStyle.physics = false;
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controlNodeStyle.x = x;
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controlNodeStyle.y = y;
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return this.body.functions.createNode(controlNodeStyle);
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}
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/**
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* Create the edit button
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*/
|
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_createEditButton() {
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|
// restore everything to it's original state (if applicable)
|
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this._clean();
|
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|
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// reset the manipulationDOM
|
|
this.manipulationDOM = {};
|
|
|
|
// empty the editModeDiv
|
|
util.recursiveDOMDelete(this.editModeDiv);
|
|
|
|
// create the contents for the editMode button
|
|
let locale = this.options.locales[this.options.locale];
|
|
let button = this._createButton('editMode', 'vis-button vis-edit vis-edit-mode', locale['edit']);
|
|
this.editModeDiv.appendChild(button);
|
|
|
|
// bind a hammer listener to the button, calling the function toggleEditMode.
|
|
this._bindHammerToDiv(button, this.toggleEditMode.bind(this));
|
|
}
|
|
|
|
|
|
/**
|
|
* this function cleans up after everything this module does. Temporary elements, functions and events are removed, physics restored, hammers removed.
|
|
* @private
|
|
*/
|
|
_clean() {
|
|
// not in mode
|
|
this.inMode = false;
|
|
|
|
// _clean the divs
|
|
if (this.guiEnabled === true) {
|
|
util.recursiveDOMDelete(this.editModeDiv);
|
|
util.recursiveDOMDelete(this.manipulationDiv);
|
|
|
|
// removes all the bindings and overloads
|
|
this._cleanManipulatorHammers();
|
|
}
|
|
|
|
// remove temporary nodes and edges
|
|
this._cleanupTemporaryNodesAndEdges();
|
|
|
|
// restore overloaded UI functions
|
|
this._unbindTemporaryUIs();
|
|
|
|
// remove the temporaryEventFunctions
|
|
this._unbindTemporaryEvents();
|
|
|
|
// restore the physics if required
|
|
this.body.emitter.emit('restorePhysics');
|
|
}
|
|
|
|
|
|
/**
|
|
* Each dom element has it's own hammer. They are stored in this.manipulationHammers. This cleans them up.
|
|
* @private
|
|
*/
|
|
_cleanManipulatorHammers() {
|
|
// _clean hammer bindings
|
|
if (this.manipulationHammers.length != 0) {
|
|
for (let i = 0; i < this.manipulationHammers.length; i++) {
|
|
this.manipulationHammers[i].destroy();
|
|
}
|
|
this.manipulationHammers = [];
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Remove all DOM elements created by this module.
|
|
* @private
|
|
*/
|
|
_removeManipulationDOM() {
|
|
// removes all the bindings and overloads
|
|
this._clean();
|
|
|
|
// empty the manipulation divs
|
|
util.recursiveDOMDelete(this.manipulationDiv);
|
|
util.recursiveDOMDelete(this.editModeDiv);
|
|
util.recursiveDOMDelete(this.closeDiv);
|
|
|
|
// remove the manipulation divs
|
|
this.canvas.frame.removeChild(this.manipulationDiv);
|
|
this.canvas.frame.removeChild(this.editModeDiv);
|
|
this.canvas.frame.removeChild(this.closeDiv);
|
|
|
|
// set the references to undefined
|
|
this.manipulationDiv = undefined;
|
|
this.editModeDiv = undefined;
|
|
this.closeDiv = undefined;
|
|
}
|
|
|
|
|
|
/**
|
|
* create a seperator line. the index is to differentiate in the manipulation dom
|
|
* @param index
|
|
* @private
|
|
*/
|
|
_createSeperator(index = 1) {
|
|
this.manipulationDOM['seperatorLineDiv' + index] = document.createElement('div');
|
|
this.manipulationDOM['seperatorLineDiv' + index].className = 'vis-separator-line';
|
|
this.manipulationDiv.appendChild(this.manipulationDOM['seperatorLineDiv' + index]);
|
|
}
|
|
|
|
// ---------------------- DOM functions for buttons --------------------------//
|
|
|
|
_createAddNodeButton(locale) {
|
|
let button = this._createButton('addNode', 'vis-button vis-add', locale['addNode']);
|
|
this.manipulationDiv.appendChild(button);
|
|
this._bindHammerToDiv(button, this.addNodeMode.bind(this));
|
|
}
|
|
|
|
_createAddEdgeButton(locale) {
|
|
let button = this._createButton('addEdge', 'vis-button vis-connect', locale['addEdge']);
|
|
this.manipulationDiv.appendChild(button);
|
|
this._bindHammerToDiv(button, this.addEdgeMode.bind(this));
|
|
}
|
|
|
|
_createEditNodeButton(locale) {
|
|
let button = this._createButton('editNodeMode', 'vis-button vis-edit', locale['editNodeMode']);
|
|
this.manipulationDiv.appendChild(button);
|
|
this._bindHammerToDiv(button, this.editNodeMode.bind(this));
|
|
}
|
|
|
|
_createEditEdgeButton(locale) {
|
|
let button = this._createButton('editEdge', 'vis-button vis-edit', locale['editEdge']);
|
|
this.manipulationDiv.appendChild(button);
|
|
this._bindHammerToDiv(button, this.editEdgeMode.bind(this));
|
|
}
|
|
|
|
_createDeleteButton(locale) {
|
|
let button = this._createButton('delete', 'vis-button vis-delete', locale['del']);
|
|
this.manipulationDiv.appendChild(button);
|
|
this._bindHammerToDiv(button, this.deleteSelected.bind(this));
|
|
}
|
|
|
|
_createBackButton(locale) {
|
|
let button = this._createButton('back', 'vis-button vis-back', locale['back']);
|
|
this.manipulationDiv.appendChild(button);
|
|
this._bindHammerToDiv(button, this.showManipulatorToolbar.bind(this));
|
|
}
|
|
|
|
_createButton(id, className, label, labelClassName = 'vis-label') {
|
|
|
|
this.manipulationDOM[id+'Div'] = document.createElement('div');
|
|
this.manipulationDOM[id+'Div'].className = className;
|
|
this.manipulationDOM[id+'Label'] = document.createElement('div');
|
|
this.manipulationDOM[id+'Label'].className = labelClassName;
|
|
this.manipulationDOM[id+'Label'].innerHTML = label;
|
|
this.manipulationDOM[id+'Div'].appendChild(this.manipulationDOM[id+'Label']);
|
|
return this.manipulationDOM[id+'Div'];
|
|
}
|
|
|
|
_createDescription(label) {
|
|
this.manipulationDiv.appendChild(
|
|
this._createButton('description', 'vis-button vis-none', label)
|
|
);
|
|
}
|
|
|
|
// -------------------------- End of DOM functions for buttons ------------------------------//
|
|
|
|
/**
|
|
* this binds an event until cleanup by the clean functions.
|
|
* @param event
|
|
* @param newFunction
|
|
* @private
|
|
*/
|
|
_temporaryBindEvent(event, newFunction) {
|
|
this.temporaryEventFunctions.push({event:event, boundFunction:newFunction});
|
|
this.body.emitter.on(event, newFunction);
|
|
}
|
|
|
|
/**
|
|
* this overrides an UI function until cleanup by the clean function
|
|
* @param UIfunctionName
|
|
* @param newFunction
|
|
* @private
|
|
*/
|
|
_temporaryBindUI(UIfunctionName, newFunction) {
|
|
if (this.body.eventListeners[UIfunctionName] !== undefined) {
|
|
this.temporaryUIFunctions[UIfunctionName] = this.body.eventListeners[UIfunctionName];
|
|
this.body.eventListeners[UIfunctionName] = newFunction;
|
|
}
|
|
else {
|
|
throw new Error('This UI function does not exist. Typo? You tried: ' + UIfunctionName + ' possible are: ' + JSON.stringify(Object.keys(this.body.eventListeners)));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Restore the overridden UI functions to their original state.
|
|
*
|
|
* @private
|
|
*/
|
|
_unbindTemporaryUIs() {
|
|
for (let functionName in this.temporaryUIFunctions) {
|
|
if (this.temporaryUIFunctions.hasOwnProperty(functionName)) {
|
|
this.body.eventListeners[functionName] = this.temporaryUIFunctions[functionName];
|
|
delete this.temporaryUIFunctions[functionName];
|
|
}
|
|
}
|
|
this.temporaryUIFunctions = {};
|
|
}
|
|
|
|
/**
|
|
* Unbind the events created by _temporaryBindEvent
|
|
* @private
|
|
*/
|
|
_unbindTemporaryEvents() {
|
|
for (let i = 0; i < this.temporaryEventFunctions.length; i++) {
|
|
let eventName = this.temporaryEventFunctions[i].event;
|
|
let boundFunction = this.temporaryEventFunctions[i].boundFunction;
|
|
this.body.emitter.off(eventName, boundFunction);
|
|
}
|
|
this.temporaryEventFunctions = [];
|
|
}
|
|
|
|
/**
|
|
* Bind an hammer instance to a DOM element.
|
|
* @param domElement
|
|
* @param funct
|
|
*/
|
|
_bindHammerToDiv(domElement, boundFunction) {
|
|
let hammer = new Hammer(domElement, {});
|
|
hammerUtil.onTouch(hammer, boundFunction);
|
|
this.manipulationHammers.push(hammer);
|
|
}
|
|
|
|
|
|
/**
|
|
* Neatly clean up temporary edges and nodes
|
|
* @private
|
|
*/
|
|
_cleanupTemporaryNodesAndEdges() {
|
|
// _clean temporary edges
|
|
for (let i = 0; i < this.temporaryIds.edges.length; i++) {
|
|
this.body.edges[this.temporaryIds.edges[i]].disconnect();
|
|
delete this.body.edges[this.temporaryIds.edges[i]];
|
|
let indexTempEdge = this.body.edgeIndices.indexOf(this.temporaryIds.edges[i]);
|
|
if (indexTempEdge !== -1) {this.body.edgeIndices.splice(indexTempEdge,1);}
|
|
}
|
|
|
|
// _clean temporary nodes
|
|
for (let i = 0; i < this.temporaryIds.nodes.length; i++) {
|
|
delete this.body.nodes[this.temporaryIds.nodes[i]];
|
|
let indexTempNode = this.body.nodeIndices.indexOf(this.temporaryIds.nodes[i]);
|
|
if (indexTempNode !== -1) {this.body.nodeIndices.splice(indexTempNode,1);}
|
|
}
|
|
|
|
this.temporaryIds = {nodes: [], edges: []};
|
|
}
|
|
|
|
// ------------------------------------------ EDIT EDGE FUNCTIONS -----------------------------------------//
|
|
|
|
/**
|
|
* the touch is used to get the position of the initial click
|
|
* @param event
|
|
* @private
|
|
*/
|
|
_controlNodeTouch(event) {
|
|
this.selectionHandler.unselectAll();
|
|
this.lastTouch = this.body.functions.getPointer(event.center);
|
|
this.lastTouch.translation = util.extend({},this.body.view.translation); // copy the object
|
|
}
|
|
|
|
|
|
/**
|
|
* the drag start is used to mark one of the control nodes as selected.
|
|
* @param event
|
|
* @private
|
|
*/
|
|
_controlNodeDragStart(event) {
|
|
let pointer = this.lastTouch;
|
|
let pointerObj = this.selectionHandler._pointerToPositionObject(pointer);
|
|
let from = this.body.nodes[this.temporaryIds.nodes[0]];
|
|
let to = this.body.nodes[this.temporaryIds.nodes[1]];
|
|
let edge = this.body.edges[this.edgeBeingEditedId];
|
|
this.selectedControlNode = undefined;
|
|
|
|
let fromSelect = from.isOverlappingWith(pointerObj);
|
|
let toSelect = to.isOverlappingWith(pointerObj);
|
|
|
|
if (fromSelect === true) {
|
|
this.selectedControlNode = from;
|
|
edge.edgeType.from = from;
|
|
}
|
|
else if (toSelect === true) {
|
|
this.selectedControlNode = to;
|
|
edge.edgeType.to = to;
|
|
}
|
|
|
|
this.body.emitter.emit('_redraw');
|
|
}
|
|
|
|
/**
|
|
* dragging the control nodes or the canvas
|
|
* @param event
|
|
* @private
|
|
*/
|
|
_controlNodeDrag(event) {
|
|
this.body.emitter.emit('disablePhysics');
|
|
let pointer = this.body.functions.getPointer(event.center);
|
|
let pos = this.canvas.DOMtoCanvas(pointer);
|
|
|
|
if (this.selectedControlNode !== undefined) {
|
|
this.selectedControlNode.x = pos.x;
|
|
this.selectedControlNode.y = pos.y;
|
|
}
|
|
else {
|
|
// if the drag was not started properly because the click started outside the network div, start it now.
|
|
let diffX = pointer.x - this.lastTouch.x;
|
|
let diffY = pointer.y - this.lastTouch.y;
|
|
this.body.view.translation = {x:this.lastTouch.translation.x + diffX, y:this.lastTouch.translation.y + diffY};
|
|
}
|
|
this.body.emitter.emit('_redraw');
|
|
}
|
|
|
|
|
|
/**
|
|
* connecting or restoring the control nodes.
|
|
* @param event
|
|
* @private
|
|
*/
|
|
_controlNodeDragEnd(event) {
|
|
let pointer = this.body.functions.getPointer(event.center);
|
|
let pointerObj = this.selectionHandler._pointerToPositionObject(pointer);
|
|
let edge = this.body.edges[this.edgeBeingEditedId];
|
|
|
|
let overlappingNodeIds = this.selectionHandler._getAllNodesOverlappingWith(pointerObj);
|
|
let node = undefined;
|
|
for (let i = overlappingNodeIds.length-1; i >= 0; i--) {
|
|
if (overlappingNodeIds[i] !== this.selectedControlNode.id) {
|
|
node = this.body.nodes[overlappingNodeIds[i]];
|
|
break;
|
|
}
|
|
}
|
|
|
|
// perform the connection
|
|
if (node !== undefined && this.selectedControlNode !== undefined) {
|
|
if (node.isCluster === true) {
|
|
alert(this.options.locales[this.options.locale]['createEdgeError'])
|
|
}
|
|
else {
|
|
let from = this.body.nodes[this.temporaryIds.nodes[0]];
|
|
if (this.selectedControlNode.id === from.id) {
|
|
this._performEditEdge(node.id, edge.to.id);
|
|
}
|
|
else {
|
|
this._performEditEdge(edge.from.id, node.id);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
edge.updateEdgeType();
|
|
this.body.emitter.emit('restorePhysics');
|
|
}
|
|
this.body.emitter.emit('_redraw');
|
|
}
|
|
|
|
// ------------------------------------ END OF EDIT EDGE FUNCTIONS -----------------------------------------//
|
|
|
|
|
|
|
|
// ------------------------------------------- ADD EDGE FUNCTIONS -----------------------------------------//
|
|
/**
|
|
* the function bound to the selection event. It checks if you want to connect a cluster and changes the description
|
|
* to walk the user through the process.
|
|
*
|
|
* @private
|
|
*/
|
|
_handleConnect(event) {
|
|
// check to avoid double fireing of this function.
|
|
if (new Date().valueOf() - this.touchTime > 100) {
|
|
this.lastTouch = this.body.functions.getPointer(event.center);
|
|
this.lastTouch.translation = util.extend({},this.body.view.translation); // copy the object
|
|
|
|
let pointer = this.lastTouch;
|
|
let node = this.selectionHandler.getNodeAt(pointer);
|
|
|
|
if (node !== undefined) {
|
|
if (node.isCluster === true) {
|
|
alert(this.options.locales[this.options.locale]['createEdgeError'])
|
|
}
|
|
else {
|
|
// create a node the temporary line can look at
|
|
let targetNode = this._getNewTargetNode(node.x,node.y);
|
|
this.body.nodes[targetNode.id] = targetNode;
|
|
this.body.nodeIndices.push(targetNode.id);
|
|
|
|
// create a temporary edge
|
|
let connectionEdge = this.body.functions.createEdge({
|
|
id: 'connectionEdge' + util.randomUUID(),
|
|
from: node.id,
|
|
to: targetNode.id,
|
|
physics: false,
|
|
smooth: {
|
|
enabled: true,
|
|
dynamic: false,
|
|
type: 'continuous',
|
|
roundness: 0.5
|
|
}
|
|
});
|
|
this.body.edges[connectionEdge.id] = connectionEdge;
|
|
this.body.edgeIndices.push(connectionEdge.id);
|
|
|
|
this.temporaryIds.nodes.push(targetNode.id);
|
|
this.temporaryIds.edges.push(connectionEdge.id);
|
|
}
|
|
}
|
|
this.touchTime = new Date().valueOf();
|
|
}
|
|
}
|
|
|
|
_dragControlNode(event) {
|
|
let pointer = this.body.functions.getPointer(event.center);
|
|
if (this.temporaryIds.nodes[0] !== undefined) {
|
|
let targetNode = this.body.nodes[this.temporaryIds.nodes[0]]; // there is only one temp node in the add edge mode.
|
|
targetNode.x = this.canvas._XconvertDOMtoCanvas(pointer.x);
|
|
targetNode.y = this.canvas._YconvertDOMtoCanvas(pointer.y);
|
|
this.body.emitter.emit('_redraw');
|
|
}
|
|
else {
|
|
let diffX = pointer.x - this.lastTouch.x;
|
|
let diffY = pointer.y - this.lastTouch.y;
|
|
this.body.view.translation = {x:this.lastTouch.translation.x + diffX, y:this.lastTouch.translation.y + diffY};
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/**
|
|
* Connect the new edge to the target if one exists, otherwise remove temp line
|
|
* @param event
|
|
* @private
|
|
*/
|
|
_finishConnect(event) {
|
|
let pointer = this.body.functions.getPointer(event.center);
|
|
let pointerObj = this.selectionHandler._pointerToPositionObject(pointer);
|
|
|
|
// remember the edge id
|
|
let connectFromId = undefined;
|
|
if (this.temporaryIds.edges[0] !== undefined) {
|
|
connectFromId = this.body.edges[this.temporaryIds.edges[0]].fromId;
|
|
}
|
|
|
|
// get the overlapping node but NOT the temporary node;
|
|
let overlappingNodeIds = this.selectionHandler._getAllNodesOverlappingWith(pointerObj);
|
|
let node = undefined;
|
|
for (let i = overlappingNodeIds.length-1; i >= 0; i--) {
|
|
// if the node id is NOT a temporary node, accept the node.
|
|
if (this.temporaryIds.nodes.indexOf(overlappingNodeIds[i]) === -1) {
|
|
node = this.body.nodes[overlappingNodeIds[i]];
|
|
break;
|
|
}
|
|
}
|
|
|
|
// clean temporary nodes and edges.
|
|
this._cleanupTemporaryNodesAndEdges();
|
|
|
|
// perform the connection
|
|
if (node !== undefined) {
|
|
if (node.isCluster === true) {
|
|
alert(this.options.locales[this.options.locale]['createEdgeError']);
|
|
}
|
|
else {
|
|
if (this.body.nodes[connectFromId] !== undefined && this.body.nodes[node.id] !== undefined) {
|
|
this._performAddEdge(connectFromId, node.id);
|
|
}
|
|
}
|
|
}
|
|
this.body.emitter.emit('_redraw');
|
|
}
|
|
|
|
// --------------------------------------- END OF ADD EDGE FUNCTIONS -------------------------------------//
|
|
|
|
|
|
// ------------------------------ Performing all the actual data manipulation ------------------------//
|
|
|
|
/**
|
|
* Adds a node on the specified location
|
|
*/
|
|
_performAddNode(clickData) {
|
|
let defaultData = {
|
|
id: util.randomUUID(),
|
|
x: clickData.pointer.canvas.x,
|
|
y: clickData.pointer.canvas.y,
|
|
label: 'new'
|
|
};
|
|
|
|
if (typeof this.options.addNode === 'function') {
|
|
if (this.options.addNode.length === 2) {
|
|
this.options.addNode(defaultData, (finalizedData) => {
|
|
if (finalizedData !== null && finalizedData !== undefined && this.inMode === 'addNode') { // if for whatever reason the mode has changes (due to dataset change) disregard the callback
|
|
this.body.data.nodes.add(finalizedData);
|
|
this.showManipulatorToolbar();
|
|
}
|
|
});
|
|
}
|
|
else {
|
|
throw new Error('The function for add does not support two arguments (data,callback)');
|
|
this.showManipulatorToolbar();
|
|
}
|
|
}
|
|
else {
|
|
this.body.data.nodes.add(defaultData);
|
|
this.showManipulatorToolbar();
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* connect two nodes with a new edge.
|
|
*
|
|
* @private
|
|
*/
|
|
_performAddEdge(sourceNodeId, targetNodeId) {
|
|
let defaultData = {from: sourceNodeId, to: targetNodeId};
|
|
if (typeof this.options.addEdge === 'function') {
|
|
if (this.options.addEdge.length === 2) {
|
|
this.options.addEdge(defaultData, (finalizedData) => {
|
|
if (finalizedData !== null && finalizedData !== undefined && this.inMode === 'addEdge') { // if for whatever reason the mode has changes (due to dataset change) disregard the callback
|
|
this.body.data.edges.add(finalizedData);
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this.selectionHandler.unselectAll();
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this.showManipulatorToolbar();
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}
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});
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}
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else {
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throw new Error('The function for connect does not support two arguments (data,callback)');
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}
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}
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else {
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this.body.data.edges.add(defaultData);
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this.selectionHandler.unselectAll();
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this.showManipulatorToolbar();
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}
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}
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/**
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* connect two nodes with a new edge.
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*
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* @private
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*/
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_performEditEdge(sourceNodeId, targetNodeId) {
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let defaultData = {id: this.edgeBeingEditedId, from: sourceNodeId, to: targetNodeId};
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if (typeof this.options.editEdge === 'function') {
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if (this.options.editEdge.length === 2) {
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this.options.editEdge(defaultData, (finalizedData) => {
|
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if (finalizedData === null || finalizedData === undefined || this.inMode !== 'editEdge') { // if for whatever reason the mode has changes (due to dataset change) disregard the callback) {
|
|
this.body.edges[defaultData.id].updateEdgeType();
|
|
this.body.emitter.emit('_redraw');
|
|
}
|
|
else {
|
|
this.body.data.edges.update(finalizedData);
|
|
this.selectionHandler.unselectAll();
|
|
this.showManipulatorToolbar();
|
|
}
|
|
});
|
|
}
|
|
else {
|
|
throw new Error('The function for edit does not support two arguments (data, callback)');
|
|
}
|
|
}
|
|
else {
|
|
this.body.data.edges.update(defaultData);
|
|
this.selectionHandler.unselectAll();
|
|
this.showManipulatorToolbar();
|
|
}
|
|
}
|
|
|
|
|
|
}
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export default ManipulationSystem;
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|