File ManipulationSystem.js has 783 lines of code (exceeds 250 allowed). Consider refactoring.

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let util = require('../../util');
let Hammer = require('../../module/hammer');
let hammerUtil = require('../../hammerUtil');

ManipulationSystem has 45 functions (exceeds 20 allowed). Consider refactoring.

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class ManipulationSystem {
  /**
   * @param {Object} body
   * @param {Canvas} canvas
   * @param {SelectionHandler} selectionHandler

Function showManipulatorToolbar has a Cognitive Complexity of 36 (exceeds 5 allowed). Consider refactoring.

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  showManipulatorToolbar() {
    // restore the state of any bound functions or events, remove control nodes, restore physics
    this._clean();

    // reset global variables

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Function showManipulatorToolbar has 57 lines of code (exceeds 25 allowed). Consider refactoring.

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  showManipulatorToolbar() {
    // restore the state of any bound functions or events, remove control nodes, restore physics
    this._clean();

    // reset global variables

Function deleteSelected has a Cognitive Complexity of 17 (exceeds 5 allowed). Consider refactoring.

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  deleteSelected() {
    // when using the gui, enable edit mode if it wasnt already.
    if (this.editMode !== true) {
      this.enableEditMode();
    }

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Function editEdgeMode has 55 lines of code (exceeds 25 allowed). Consider refactoring.

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  editEdgeMode() {
    // when using the gui, enable edit mode if it wasn't already.
    if (this.editMode !== true) {
      this.enableEditMode();
    }

Function deleteSelected has 50 lines of code (exceeds 25 allowed). Consider refactoring.

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  deleteSelected() {
    // when using the gui, enable edit mode if it wasnt already.
    if (this.editMode !== true) {
      this.enableEditMode();
    }

Function editNode has a Cognitive Complexity of 15 (exceeds 5 allowed). Consider refactoring.

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  editNode() {
    // when using the gui, enable edit mode if it wasnt already.
    if (this.editMode !== true) {
      this.enableEditMode();
    }

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Function _controlNodeDragEnd has a Cognitive Complexity of 15 (exceeds 5 allowed). Consider refactoring.

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  _controlNodeDragEnd(event) {
    let pointer = this.body.functions.getPointer(event.center);
    let pointerObj = this.selectionHandler._pointerToPositionObject(pointer);
    let edge = this.body.edges[this.edgeBeingEditedId];
    // if the node that was dragged is not a control node, return

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Function setOptions has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.

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  setOptions(options, allOptions, globalOptions) {
    if (allOptions !== undefined) {
      if (allOptions.locale !== undefined)  {this.options.locale = allOptions.locale}   else {this.options.locale = globalOptions.locale;}
      if (allOptions.locales !== undefined) {this.options.locales = allOptions.locales} else {this.options.locales = globalOptions.locales;}
    }

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Function _finishConnect has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.

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  _finishConnect(event) {
    let pointer = this.body.functions.getPointer(event.center);
    let pointerObj = this.selectionHandler._pointerToPositionObject(pointer);

    // remember the edge id

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Function constructor has 37 lines of code (exceeds 25 allowed). Consider refactoring.

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  constructor(body, canvas, selectionHandler) {
    this.body = body;
    this.canvas = canvas;
    this.selectionHandler = selectionHandler;

Function editNode has 35 lines of code (exceeds 25 allowed). Consider refactoring.

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  editNode() {
    // when using the gui, enable edit mode if it wasnt already.
    if (this.editMode !== true) {
      this.enableEditMode();
    }

Function _controlNodeDragEnd has 34 lines of code (exceeds 25 allowed). Consider refactoring.

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  _controlNodeDragEnd(event) {
    let pointer = this.body.functions.getPointer(event.center);
    let pointerObj = this.selectionHandler._pointerToPositionObject(pointer);
    let edge = this.body.edges[this.edgeBeingEditedId];
    // if the node that was dragged is not a control node, return

Function _handleConnect has 32 lines of code (exceeds 25 allowed). Consider refactoring.

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  _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

Function _performEditEdge has 29 lines of code (exceeds 25 allowed). Consider refactoring.

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  _performEditEdge(sourceNodeId, targetNodeId) {
    let defaultData = {id: this.edgeBeingEditedId, from: sourceNodeId, to: targetNodeId, label: this.body.data.edges._data[this.edgeBeingEditedId].label };
    let eeFunct = this.options.editEdge;
    if (typeof eeFunct === 'object') {
      eeFunct = eeFunct.editWithoutDrag;

Function _createWrappers has 28 lines of code (exceeds 25 allowed). Consider refactoring.

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  _createWrappers() {
    // load the manipulator HTML elements. All styling done in css.
    if (this.manipulationDiv === undefined) {
      this.manipulationDiv = document.createElement('div');
      this.manipulationDiv.className = 'vis-manipulation';

Function _finishConnect has 26 lines of code (exceeds 25 allowed). Consider refactoring.

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  _finishConnect(event) {
    let pointer = this.body.functions.getPointer(event.center);
    let pointerObj = this.selectionHandler._pointerToPositionObject(pointer);

    // remember the edge id

Function _createWrappers has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.

Open

  _createWrappers() {
    // load the manipulator HTML elements. All styling done in css.
    if (this.manipulationDiv === undefined) {
      this.manipulationDiv = document.createElement('div');
      this.manipulationDiv.className = 'vis-manipulation';

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Function editEdgeMode has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.

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  editEdgeMode() {
    // when using the gui, enable edit mode if it wasn't already.
    if (this.editMode !== true) {
      this.enableEditMode();
    }

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Avoid deeply nested control flow statements.

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          if (needSeperator === true) {
            this._createSeperator(4);
          }

Avoid deeply nested control flow statements.

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              if (finalizedData !== null && finalizedData !== undefined && this.inMode === 'editNode') { // if for whatever reason the mode has changes (due to dataset change) disregard the callback) {
                this.body.data.nodes.getDataSet().update(finalizedData);
              }

Function _handleConnect has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.

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  _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

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Function _performEditEdge has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

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  _performEditEdge(sourceNodeId, targetNodeId) {
    let defaultData = {id: this.edgeBeingEditedId, from: sourceNodeId, to: targetNodeId, label: this.body.data.edges._data[this.edgeBeingEditedId].label };
    let eeFunct = this.options.editEdge;
    if (typeof eeFunct === 'object') {
      eeFunct = eeFunct.editWithoutDrag;

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Function _cleanupTemporaryNodesAndEdges has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

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  _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]];

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