Merge pull request #68 from jkaufy/master

import Wkt from "wicket";

import { func } from "prop-types";

/**

 * @class AstroDraw

 * @aka L.Control.AstroDraw

 * @extends L.Control

 * Class that extends from the class L.Control.Draw and handles the back-end when a user draws on the leaflet map.

 * Since this class inherits L.Control, it is added to the AstroMap in the same way as other controls, like the zoom control.

 *

 * * @example

 *

 * ```js

 * // add a feature group to the map

 * let drawnItems = new L.FeatureGroup();

 * map.addLayer(drawnItems);

 * 

 * // add draw control to map

 * let drawControl = new Draw({

 * edit: {

 *    featureGroup: drawnItems

 * },

 *    targetMap: map

 * }).addTo(map);

 * ```

 */

export default L.Control.AstroDraw = L.Control.Draw.extend({

	options: {

		position: 'topleft',

    edit: false

  },

  /**

   * Adds the draw control to the map provided. Creates an on-draw and on-click event

   * that allows users to draw polygons onto the leaflet map. 

   * @param  {AstroMap} map - The AstroMap to add the control to.

   * @return {Object} The div-container the control is in.

   */

  onAdd: function (map) {

    let container = L.DomUtil.create('div', 'leaflet-draw'),

			addedTopClass = false,

    return container;

  },

  /**

   * Is called when a user draws a shape using the on map drawing features.

   * Converts the shaped drawn into a Well-Known text string and inserts it into the

   * Well-Known text box.  

   * @param  {DomEvent} e  - On draw.

   */

  shapesToWKT: function(e){

    this.myLayer.clearLayers();

    this.options.edit['featureGroup'].clearLayers();

    this.wktTextBox.value = this.wkt.write();

  },

  /**

   * Is called when a user clicks the draw button below the AstroMap.

   * Will take the Well-Known text string and draw the shape onto the map.

   * If the Well-Known text string is invalid an error will show in the text box. 

   * @param  {DomEvent} e  - On Click of Well-Known text button.

   */

  mapWKTString: function(e){

    this.myLayer.clearLayers();

    this.options.edit['featureGroup'].clearLayers();