IITC plugin: Draw multi links and fields (forked from https://github.com/kewwwa/iitc-plugin-multidraw)

iitc-multi-draw.user.js

// ==UserScript==
// @id             iitc-plugin-multidraw@jd
// @name           IITC plugin: Multi draw
// @description    Draw multiple links/fields
//                 *:   Draw line between this and prev portal
//                 O:   Draw field from selected portal to base portals
//                      (available after drawing a line)
//                 Close panel to draw new set
// @category       Layer
// @version        0.1.7
// @author         jd, kewwwa
// @namespace      https://github.com/johnd0e/
// @updateURL      https://gist.github.com/johnd0e/df3315e0578b1ac0df6fd87241089030/raw/iitc-multi-draw.user.js
// @downloadURL    https://gist.github.com/johnd0e/df3315e0578b1ac0df6fd87241089030/raw/iitc-multi-draw.user.js
// @include        https://intel.ingress.com/*
// @grant          none
// ==/UserScript==

function wrapper(plugin_info) {
// ensure plugin framework is there, even if iitc is not yet loaded
if(typeof window.plugin !== 'function') window.plugin = function() {};

    // PLUGIN START ////////////////////////////////////////////////////////
// use own namespace for plugin
var multidraw = function () {};
window.plugin.multidraw = multidraw;

var multidrawControl = L.Control.extend({
  options: {position:'topleft'},

  initialize: function () {
    this.lastPortal = []
  },

  onAdd: function () {
    var container = L.DomUtil.create('div', 'leaflet-control-multidraw leaflet-draw');
    L.DomEvent.disableClickPropagation(container);

    var section = L.DomUtil.create('div', 'leaflet-draw-section', container);
    this._toolbar = L.DomUtil.create('div', 'leaflet-bar leaflet-draw-toolbar-top', section);

    var button = L.DomUtil.create('a', 'leaflet-multidraw-edit', this._toolbar);
    button.title = 'Draw multi links';
    L.DomEvent.on(button, 'click', this.toggleMenu, this);

    this._actions = L.DomUtil.create('ul', 'leaflet-draw-actions leaflet-draw-actions-top leaflet-draw-actions-bottom', section);

    this._actionField = L.DomUtil.create('li');
    var setFieldLink = L.DomUtil.create('a', null, this._actionField);
    setFieldLink.innerHTML = 'O';
    setFieldLink.title = 'Set Field';
    L.DomEvent.on(setFieldLink, 'click', this.setField, this);

    this._actionLine = L.DomUtil.create('li');
    var setLineLink = L.DomUtil.create('a', null, this._actionLine);
    setLineLink.innerHTML = '*';
    setLineLink.title = 'Set Line';
    L.DomEvent.on(setLineLink, 'click', this.setLine, this);

    return container;
  },

  toggleMenu: function () {
    if (this._actions.classList.contains('active')) {
      this._actions.classList.remove('active');
      this._toolbar.classList.remove('leaflet-draw-toolbar-notop', 'leaflet-draw-toolbar-nobottom');
      delete this.portalA;
      delete this.portalB;
      this.lastPortal = [];
      this._actionField.remove();
    } else {
      this._actions.appendChild(this._actionLine);
      this._actions.classList.add('active');
      this._toolbar.classList.add('leaflet-draw-toolbar-notop', 'leaflet-draw-toolbar-nobottom');
    }
  },

  setField: function () {
    if (!selectedPortal || !portals[selectedPortal]) { return };
    if (!this.portalA) {
      var len = this.lastPortal.length
      if (len<2) return;
      this.portalA = this.lastPortal[len-2];
      this.portalB = this.lastPortal[len-1];
    }
    if (selectedPortal === this.portalA || selectedPortal === this.portalB) { return; }

    this._draw([this.portalA, selectedPortal, this.portalB]);
    this._actionLine.remove();

    this.lastPortal.push(selectedPortal);
 },

  setLine: function () {
    if (!selectedPortal || !portals[selectedPortal]) { return };

    var last = this.lastPortal[this.lastPortal.length-1]
    if (last) {
      if (last === selectedPortal) { return };
      this._draw([last, selectedPortal]);
      this._actions.appendChild(this._actionField);
    }

    this.lastPortal.push(selectedPortal);
  },

  _draw: function (guids) {
    var layer, layerType;
    var latlngs = guids.map(function (guid) {
      return window.portals[guid].getLatLng();
    });
    if (latlngs.length === 2) {
      layer = L.geodesicPolyline(latlngs, window.plugin.drawTools.lineOptions);
      layerType = 'polyline';
    } else {
      layer = L.geodesicPolygon(latlngs, window.plugin.drawTools.polygonOptions);
      layerType = 'polygon';
    }
    this._map.fire('draw:created', {
      layer: layer,
      layerType: layerType
    });

    if (!this._map.hasLayer(window.plugin.drawTools.drawnItems)) {
      this._map.addLayer(window.plugin.drawTools.drawnItems);
    }
  }
});

function setup() {
  $('<style>').prop('type', 'text/css')
    .html('.leaflet-draw-actions.active{display:block; top:-1px;} .leaflet-draw-actions a {width:inherit;} ' +
          '.leaflet-draw-actions a.active {background-color:#008902;} ' +
          '.leaflet-touch .leaflet-draw-actions-top.leaflet-draw-actions-bottom a {height:30px; line-height:30px;} ' +
          '.leaflet-touch .leaflet-draw-actions {top:1px;} ' +
          'a.leaflet-multidraw-edit {background-image: url("data:image/png;base64,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"); background-size: 70%;}')
    .appendTo('head');

  multidraw.control = (new multidrawControl).addTo(window.map);
}
// PLUGIN END //////////////////////////////////////////////////////////


setup.info = plugin_info; //add the script info data to the function as a property
if(!window.bootPlugins) window.bootPlugins = [];
window.bootPlugins.push(setup);
// if IITC has already booted, immediately run the 'setup' function
if(window.iitcLoaded && typeof setup === 'function') setup();
} // wrapper end
// inject code into site context
var script = document.createElement('script');
var info = {};
if (typeof GM_info !== 'undefined' && GM_info && GM_info.script) info.script = { version: GM_info.script.version, name: GM_info.script.name, description: GM_info.script.description };
script.appendChild(document.createTextNode('('+ wrapper +')('+JSON.stringify(info)+');'));
(document.body || document.head || document.documentElement).appendChild(script);

Does this have any major differences then the original?

This is early fork of https://kewwwa.github.io/
At the time of forking that was completely non-functional.