leaflet-editable/src/Leaflet.Editable.js

Make geometries editable in Leaflet

;((factory, window) => {
  /*globals define, module, require*/

  // define an AMD module that relies on 'leaflet'
  if (typeof define === 'function' && define.amd) {
    define(['leaflet'], factory)

    // define a Common JS module that relies on 'leaflet'
  } else if (typeof exports === 'object') {
    module.exports = factory(require('leaflet'))
  }

  // attach your plugin to the global 'L' variable
  if (typeof window !== 'undefined' && window.L) {
    factory(window.L)
  }
})((L) => {
  // 🍂miniclass CancelableEvent (Event objects)
  // 🍂method cancel()
  // Cancel any subsequent action.

  // 🍂miniclass VertexEvent (Event objects)
  // 🍂property vertex: VertexMarker
  // The vertex that fires the event.

  // 🍂miniclass ShapeEvent (Event objects)
  // 🍂property shape: Array
  // The shape (LatLngs array) subject of the action.

  // 🍂miniclass CancelableVertexEvent (Event objects)
  // 🍂inherits VertexEvent
  // 🍂inherits CancelableEvent

  // 🍂miniclass CancelableShapeEvent (Event objects)
  // 🍂inherits ShapeEvent
  // 🍂inherits CancelableEvent

  // 🍂miniclass LayerEvent (Event objects)
  // 🍂property layer: object
  // The Layer (Marker, Polyline…) subject of the action.

  // 🍂namespace Editable; 🍂class Editable; 🍂aka L.Editable
  // Main edition handler. By default, it is attached to the map
  // as `map.editTools` property.
  // Leaflet.Editable is made to be fully extendable. You have three ways to customize
  // the behaviour: using options, listening to events, or extending.
  L.Editable = L.Evented.extend({
    statics: {
      FORWARD: 1,
      BACKWARD: -1,
    },

    options: {
      // You can pass them when creating a map using the `editOptions` key.
      // 🍂option zIndex: int = 1000
      // The default zIndex of the editing tools.
      zIndex: 1000,

      // 🍂option polygonClass: class = L.Polygon
      // Class to be used when creating a new Polygon.
      polygonClass: L.Polygon,

      // 🍂option polylineClass: class = L.Polyline
      // Class to be used when creating a new Polyline.
      polylineClass: L.Polyline,

      // 🍂option markerClass: class = L.Marker
      // Class to be used when creating a new Marker.
      markerClass: L.Marker,

      // 🍂option circleMarkerClass: class = L.CircleMarker
      // Class to be used when creating a new CircleMarker.
      circleMarkerClass: L.CircleMarker,

      // 🍂option rectangleClass: class = L.Rectangle
      // Class to be used when creating a new Rectangle.
      rectangleClass: L.Rectangle,

      // 🍂option circleClass: class = L.Circle
      // Class to be used when creating a new Circle.
      circleClass: L.Circle,

      // 🍂option drawingCSSClass: string = 'leaflet-editable-drawing'
      // CSS class to be added to the map container while drawing.
      drawingCSSClass: 'leaflet-editable-drawing',

      // 🍂option drawingCursor: const = 'crosshair'
      // Cursor mode set to the map while drawing.
      drawingCursor: 'crosshair',

      // 🍂option editLayer: Layer = new L.LayerGroup()
      // Layer used to store edit tools (vertex, line guide…).
      editLayer: undefined,

      // 🍂option featuresLayer: Layer = new L.LayerGroup()
      // Default layer used to store drawn features (Marker, Polyline…).
      featuresLayer: undefined,

      // 🍂option polylineEditorClass: class = PolylineEditor
      // Class to be used as Polyline editor.
      polylineEditorClass: undefined,

      // 🍂option polygonEditorClass: class = PolygonEditor
      // Class to be used as Polygon editor.
      polygonEditorClass: undefined,

      // 🍂option markerEditorClass: class = MarkerEditor
      // Class to be used as Marker editor.
      markerEditorClass: undefined,

      // 🍂option circleMarkerEditorClass: class = CircleMarkerEditor
      // Class to be used as CircleMarker editor.
      circleMarkerEditorClass: undefined,

      // 🍂option rectangleEditorClass: class = RectangleEditor
      // Class to be used as Rectangle editor.
      rectangleEditorClass: undefined,

      // 🍂option circleEditorClass: class = CircleEditor
      // Class to be used as Circle editor.
      circleEditorClass: undefined,

      // 🍂option lineGuideOptions: hash = {}
      // Options to be passed to the line guides.
      lineGuideOptions: {},

      // 🍂option skipMiddleMarkers: boolean = false
      // Set this to true if you don't want middle markers.
      skipMiddleMarkers: false,
    },

    initialize: function (map, options) {
      L.setOptions(this, options)
      this._lastZIndex = this.options.zIndex
      this.map = map
      this.editLayer = this.createEditLayer()
      this.featuresLayer = this.createFeaturesLayer()
      this.forwardLineGuide = this.createLineGuide()
      this.backwardLineGuide = this.createLineGuide()
    },

    fireAndForward: function (type, e) {
      e = e || {}
      e.editTools = this
      this.fire(type, e)
      this.map.fire(type, e)
    },

    createLineGuide: function () {
      const options = L.extend(
        { dashArray: '5,10', weight: 1, interactive: false },
        this.options.lineGuideOptions
      )
      return L.polyline([], options)
    },

    createVertexIcon: (options) =>
      L.Browser.mobile && L.Browser.touch
        ? new L.Editable.TouchVertexIcon(options)
        : new L.Editable.VertexIcon(options),

    createEditLayer: function () {
      return this.options.editLayer || new L.LayerGroup().addTo(this.map)
    },

    createFeaturesLayer: function () {
      return this.options.featuresLayer || new L.LayerGroup().addTo(this.map)
    },

    moveForwardLineGuide: function (latlng) {
      if (this.forwardLineGuide._latlngs.length) {
        this.forwardLineGuide._latlngs[1] = latlng
        this.forwardLineGuide._bounds.extend(latlng)
        this.forwardLineGuide.redraw()
      }
    },

    moveBackwardLineGuide: function (latlng) {
      if (this.backwardLineGuide._latlngs.length) {
        this.backwardLineGuide._latlngs[1] = latlng
        this.backwardLineGuide._bounds.extend(latlng)
        this.backwardLineGuide.redraw()
      }
    },

    anchorForwardLineGuide: function (latlng) {
      this.forwardLineGuide._latlngs[0] = latlng
      this.forwardLineGuide._bounds.extend(latlng)
      this.forwardLineGuide.redraw()
    },

    anchorBackwardLineGuide: function (latlng) {
      this.backwardLineGuide._latlngs[0] = latlng
      this.backwardLineGuide._bounds.extend(latlng)
      this.backwardLineGuide.redraw()
    },

    attachForwardLineGuide: function () {
      this.editLayer.addLayer(this.forwardLineGuide)
    },

    attachBackwardLineGuide: function () {
      this.editLayer.addLayer(this.backwardLineGuide)
    },

    detachForwardLineGuide: function () {
      this.forwardLineGuide.setLatLngs([])
      this.editLayer.removeLayer(this.forwardLineGuide)
    },

    detachBackwardLineGuide: function () {
      this.backwardLineGuide.setLatLngs([])
      this.editLayer.removeLayer(this.backwardLineGuide)
    },

    blockEvents: function () {
      // Hack: force map not to listen to other layers events while drawing.
      if (!this._oldTargets) {
        this._oldTargets = this.map._targets
        this.map._targets = {}
      }
    },

    unblockEvents: function () {
      if (this._oldTargets) {
        // Reset, but keep targets created while drawing.
        this.map._targets = L.extend(this.map._targets, this._oldTargets)
        delete this._oldTargets
      }
    },

    registerForDrawing: function (editor) {
      if (this._drawingEditor) this.unregisterForDrawing(this._drawingEditor)
      this.blockEvents()
      editor.reset() // Make sure editor tools still receive events.
      this._drawingEditor = editor
      this.map.on('mousemove touchmove', editor.onDrawingMouseMove, editor)
      this.map.on('mousedown', this.onMousedown, this)
      this.map.on('mouseup', this.onMouseup, this)
      L.DomUtil.addClass(this.map._container, this.options.drawingCSSClass)
      this.defaultMapCursor = this.map._container.style.cursor
      this.map._container.style.cursor = this.options.drawingCursor
    },

    unregisterForDrawing: function (editor) {
      this.unblockEvents()
      L.DomUtil.removeClass(this.map._container, this.options.drawingCSSClass)
      this.map._container.style.cursor = this.defaultMapCursor
      editor = editor || this._drawingEditor
      if (!editor) return
      this.map.off('mousemove touchmove', editor.onDrawingMouseMove, editor)
      this.map.off('mousedown', this.onMousedown, this)
      this.map.off('mouseup', this.onMouseup, this)
      if (editor !== this._drawingEditor) return
      delete this._drawingEditor
      if (editor._drawing) editor.cancelDrawing()
    },

    onMousedown: function (e) {
      if (e.originalEvent.which != 1) return
      this._mouseDown = e
      this._drawingEditor.onDrawingMouseDown(e)
    },

    onMouseup: function (e) {
      if (this._mouseDown) {
        const editor = this._drawingEditor
        const mouseDown = this._mouseDown
        this._mouseDown = null
        editor.onDrawingMouseUp(e)
        if (this._drawingEditor !== editor) return // onDrawingMouseUp may call unregisterFromDrawing.
        const origin = L.point(
          mouseDown.originalEvent.clientX,
          mouseDown.originalEvent.clientY
        )
        const distance = L.point(
          e.originalEvent.clientX,
          e.originalEvent.clientY
        ).distanceTo(origin)
        if (Math.abs(distance) < 9 * (window.devicePixelRatio || 1))
          this._drawingEditor.onDrawingClick(e)
      }
    },

    // 🍂section Public methods
    // You will generally access them by the `map.editTools`
    // instance:
    //
    // `map.editTools.startPolyline();`

    // 🍂method drawing(): boolean
    // Return true if any drawing action is ongoing.
    drawing: function () {
      return this._drawingEditor?.drawing()
    },

    // 🍂method stopDrawing()
    // When you need to stop any ongoing drawing, without needing to know which editor is active.
    stopDrawing: function () {
      this.unregisterForDrawing()
    },

    // 🍂method commitDrawing()
    // When you need to commit any ongoing drawing, without needing to know which editor is active.
    commitDrawing: function (e) {
      if (!this._drawingEditor) return
      this._drawingEditor.commitDrawing(e)
    },

    connectCreatedToMap: function (layer) {
      return this.featuresLayer.addLayer(layer)
    },

    // 🍂method startPolyline(latlng: L.LatLng, options: hash): L.Polyline
    // Start drawing a Polyline. If `latlng` is given, a first point will be added. In any case, continuing on user click.
    // If `options` is given, it will be passed to the Polyline class constructor.
    startPolyline: function (latlng, options) {
      const line = this.createPolyline([], options)
      line.enableEdit(this.map).newShape(latlng)
      return line
    },

    // 🍂method startPolygon(latlng: L.LatLng, options: hash): L.Polygon
    // Start drawing a Polygon. If `latlng` is given, a first point will be added. In any case, continuing on user click.
    // If `options` is given, it will be passed to the Polygon class constructor.
    startPolygon: function (latlng, options) {
      const polygon = this.createPolygon([], options)
      polygon.enableEdit(this.map).newShape(latlng)
      return polygon
    },

    // 🍂method startMarker(latlng: L.LatLng, options: hash): L.Marker
    // Start adding a Marker. If `latlng` is given, the Marker will be shown first at this point.
    // In any case, it will follow the user mouse, and will have a final `latlng` on next click (or touch).
    // If `options` is given, it will be passed to the Marker class constructor.
    startMarker: function (latlng, options) {
      latlng = latlng || this.map.getCenter().clone()
      const marker = this.createMarker(latlng, options)
      marker.enableEdit(this.map).startDrawing()
      return marker
    },

    // 🍂method startCircleMarker(latlng: L.LatLng, options: hash): L.CircleMarker
    // Start adding a CircleMarker. If `latlng` is given, the CircleMarker will be shown first at this point.
    // In any case, it will follow the user mouse, and will have a final `latlng` on next click (or touch).
    // If `options` is given, it will be passed to the CircleMarker class constructor.
    startCircleMarker: function (latlng, options) {
      latlng = latlng || this.map.getCenter().clone()
      const marker = this.createCircleMarker(latlng, options)
      marker.enableEdit(this.map).startDrawing()
      return marker
    },

    // 🍂method startRectangle(latlng: L.LatLng, options: hash): L.Rectangle
    // Start drawing a Rectangle. If `latlng` is given, the Rectangle anchor will be added. In any case, continuing on user drag.
    // If `options` is given, it will be passed to the Rectangle class constructor.
    startRectangle: function (latlng, options) {
      const corner = latlng || L.latLng([0, 0])
      const bounds = new L.LatLngBounds(corner, corner)
      const rectangle = this.createRectangle(bounds, options)
      rectangle.enableEdit(this.map).startDrawing()
      return rectangle
    },

    // 🍂method startCircle(latlng: L.LatLng, options: hash): L.Circle
    // Start drawing a Circle. If `latlng` is given, the Circle anchor will be added. In any case, continuing on user drag.
    // If `options` is given, it will be passed to the Circle class constructor.
    startCircle: function (latlng, options) {
      latlng = latlng || this.map.getCenter().clone()
      const circle = this.createCircle(latlng, options)
      circle.enableEdit(this.map).startDrawing()
      return circle
    },

    startHole: (editor, latlng) => {
      editor.newHole(latlng)
    },

    createLayer: function (klass, latlngs, options) {
      options = L.Util.extend({ editOptions: { editTools: this } }, options)
      const layer = new klass(latlngs, options)
      // 🍂namespace Editable
      // 🍂event editable:created: LayerEvent
      // Fired when a new feature (Marker, Polyline…) is created.
      this.fireAndForward('editable:created', { layer: layer })
      return layer
    },

    createPolyline: function (latlngs, options) {
      return this.createLayer(
        options?.polylineClass || this.options.polylineClass,
        latlngs,
        options
      )
    },

    createPolygon: function (latlngs, options) {
      return this.createLayer(
        options?.polygonClass || this.options.polygonClass,
        latlngs,
        options
      )
    },

    createMarker: function (latlng, options) {
      return this.createLayer(
        options?.markerClass || this.options.markerClass,
        latlng,
        options
      )
    },

    createCircleMarker: function (latlng, options) {
      return this.createLayer(
        options?.circleMarkerClass || this.options.circleMarkerClass,
        latlng,
        options
      )
    },

    createRectangle: function (bounds, options) {
      return this.createLayer(
        options?.rectangleClass || this.options.rectangleClass,
        bounds,
        options
      )
    },

    createCircle: function (latlng, options) {
      return this.createLayer(
        options?.circleClass || this.options.circleClass,
        latlng,
        options
      )
    },
  })

  L.extend(L.Editable, {
    makeCancellable: (e) => {
      e.cancel = () => {
        e._cancelled = true
      }
    },
  })

  // 🍂namespace Map; 🍂class Map
  // Leaflet.Editable add options and events to the `L.Map` object.
  // See `Editable` events for the list of events fired on the Map.
  // 🍂example
  //
  // ```js
  // var map = L.map('map', {
  //  editable: true,
  //  editOptions: {
  //    …
  // }
  // });
  // ```
  // 🍂section Editable Map Options
  L.Map.mergeOptions({
    // 🍂namespace Map
    // 🍂section Map Options
    // 🍂option editToolsClass: class = L.Editable
    // Class to be used as vertex, for path editing.
    editToolsClass: L.Editable,

    // 🍂option editable: boolean = false
    // Whether to create a L.Editable instance at map init.
    editable: false,

    // 🍂option editOptions: hash = {}
    // Options to pass to L.Editable when instantiating.
    editOptions: {},
  })

  L.Map.addInitHook(function () {
    this.whenReady(function () {
      if (this.options.editable) {
        this.editTools = new this.options.editToolsClass(this, this.options.editOptions)
      }
    })
  })

  L.Editable.VertexIcon = L.DivIcon.extend({
    options: {
      iconSize: new L.Point(8, 8),
    },
  })

  L.Editable.TouchVertexIcon = L.Editable.VertexIcon.extend({
    options: {
      iconSize: new L.Point(20, 20),
    },
  })

  // 🍂namespace Editable; 🍂class VertexMarker; Handler for dragging path vertices.
  L.Editable.VertexMarker = L.Marker.extend({
    options: {
      draggable: true,
      className: 'leaflet-div-icon leaflet-vertex-icon',
    },

    // 🍂section Public methods
    // The marker used to handle path vertex. You will usually interact with a `VertexMarker`
    // instance when listening for events like `editable:vertex:ctrlclick`.

    initialize: function (latlng, latlngs, editor, options) {
      // We don't use this._latlng, because on drag Leaflet replace it while
      // we want to keep reference.
      this.latlng = latlng
      this.latlngs = latlngs
      this.editor = editor
      L.Marker.prototype.initialize.call(this, latlng, options)
      this.options.icon = this.editor.tools.createVertexIcon({
        className: this.options.className,
      })
      this.latlng.__vertex = this
      this.connect()
      this.setZIndexOffset(editor.tools._lastZIndex + 1)
    },

    connect: function () {
      this.editor.editLayer.addLayer(this)
    },

    onAdd: function (map) {
      L.Marker.prototype.onAdd.call(this, map)
      this.on('drag', this.onDrag)
      this.on('dragstart', this.onDragStart)
      this.on('dragend', this.onDragEnd)
      this.on('mouseup', this.onMouseup)
      this.on('click', this.onClick)
      this.on('contextmenu', this.onContextMenu)
      this.on('mousedown touchstart', this.onMouseDown)
      this.on('mouseover', this.onMouseOver)
      this.on('mouseout', this.onMouseOut)
      this.addMiddleMarkers()
    },

    onRemove: function (map) {
      if (this.middleMarker) this.middleMarker.delete()
      delete this.latlng.__vertex
      this.off('drag', this.onDrag)
      this.off('dragstart', this.onDragStart)
      this.off('dragend', this.onDragEnd)
      this.off('mouseup', this.onMouseup)
      this.off('click', this.onClick)
      this.off('contextmenu', this.onContextMenu)
      this.off('mousedown touchstart', this.onMouseDown)
      this.off('mouseover', this.onMouseOver)
      this.off('mouseout', this.onMouseOut)
      L.Marker.prototype.onRemove.call(this, map)
    },

    onDrag: function (e) {
      e.vertex = this
      this.editor.onVertexMarkerDrag(e)
      const iconPos = L.DomUtil.getPosition(this._icon)
      const latlng = this._map.layerPointToLatLng(iconPos)
      this.latlng.update(latlng)
      this._latlng = this.latlng // Push back to Leaflet our reference.
      this.editor.refresh()
      if (this.middleMarker) this.middleMarker.updateLatLng()
      const next = this.getNext()
      if (next?.middleMarker) next.middleMarker.updateLatLng()
    },

    onDragStart: function (e) {
      e.vertex = this
      this.editor.onVertexMarkerDragStart(e)
    },

    onDragEnd: function (e) {
      e.vertex = this
      this.editor.onVertexMarkerDragEnd(e)
    },

    onClick: function (e) {
      e.vertex = this
      this.editor.onVertexMarkerClick(e)
    },

    onMouseup: function (e) {
      L.DomEvent.stop(e)
      e.vertex = this
      this.editor.map.fire('mouseup', e)
    },

    onContextMenu: function (e) {
      e.vertex = this
      this.editor.onVertexMarkerContextMenu(e)
    },

    onMouseDown: function (e) {
      e.vertex = this
      this.editor.onVertexMarkerMouseDown(e)
    },

    onMouseOver: function (e) {
      e.vertex = this
      this.editor.onVertexMarkerMouseOver(e)
    },

    onMouseOut: function (e) {
      e.vertex = this
      this.editor.onVertexMarkerMouseOut(e)
    },

    // 🍂method delete()
    // Delete a vertex and the related LatLng.
    delete: function () {
      const next = this.getNext() // Compute before changing latlng
      this.latlngs.splice(this.getIndex(), 1)
      this.editor.editLayer.removeLayer(this)
      this.editor.onVertexDeleted({ latlng: this.latlng, vertex: this })
      if (!this.latlngs.length) this.editor.deleteShape(this.latlngs)
      if (next) next.resetMiddleMarker()
      this.editor.refresh()
    },

    // 🍂method getIndex(): int
    // Get the index of the current vertex among others of the same LatLngs group.
    getIndex: function () {
      return this.latlngs.indexOf(this.latlng)
    },

    // 🍂method getLastIndex(): int
    // Get last vertex index of the LatLngs group of the current vertex.
    getLastIndex: function () {
      return this.latlngs.length - 1
    },

    // 🍂method getPrevious(): VertexMarker
    // Get the previous VertexMarker in the same LatLngs group.
    getPrevious: function () {
      if (this.latlngs.length < 2) return
      const index = this.getIndex()
      let previousIndex = index - 1
      if (index === 0 && this.editor.CLOSED) previousIndex = this.getLastIndex()
      const previous = this.latlngs[previousIndex]
      if (previous) return previous.__vertex
    },

    // 🍂method getNext(): VertexMarker
    // Get the next VertexMarker in the same LatLngs group.
    getNext: function () {
      if (this.latlngs.length < 2) return
      const index = this.getIndex()
      let nextIndex = index + 1
      if (index === this.getLastIndex() && this.editor.CLOSED) nextIndex = 0
      const next = this.latlngs[nextIndex]
      if (next) return next.__vertex
    },

    addMiddleMarker: function (previous) {
      if (!this.editor.hasMiddleMarkers()) return
      previous = previous || this.getPrevious()
      if (previous && !this.middleMarker)
        this.middleMarker = this.editor.addMiddleMarker(
          previous,
          this,
          this.latlngs,
          this.editor
        )
    },

    addMiddleMarkers: function () {
      if (!this.editor.hasMiddleMarkers()) return
      const previous = this.getPrevious()
      if (previous) this.addMiddleMarker(previous)
      const next = this.getNext()
      if (next) next.resetMiddleMarker()
    },

    resetMiddleMarker: function () {
      if (this.middleMarker) this.middleMarker.delete()
      this.addMiddleMarker()
    },

    // 🍂method split()
    // Split the vertex LatLngs group at its index, if possible.
    split: function () {
      if (!this.editor.splitShape) return // Only for PolylineEditor
      this.editor.splitShape(this.latlngs, this.getIndex())
    },

    // 🍂method continue()
    // Continue the vertex LatLngs from this vertex. Only active for first and last vertices of a Polyline.
    continue: function () {
      if (!this.editor.continueBackward) return // Only for PolylineEditor
      const index = this.getIndex()
      if (index === 0) this.editor.continueBackward(this.latlngs)
      else if (index === this.getLastIndex()) this.editor.continueForward(this.latlngs)
    },
  })

  L.Editable.mergeOptions({
    // 🍂namespace Editable
    // 🍂option vertexMarkerClass: class = VertexMarker
    // Class to be used as vertex, for path editing.
    vertexMarkerClass: L.Editable.VertexMarker,
  })

  L.Editable.MiddleMarker = L.Marker.extend({
    options: {
      opacity: 0.5,
      className: 'leaflet-div-icon leaflet-middle-icon',
      draggable: true,
    },

    initialize: function (left, right, latlngs, editor, options) {
      this.left = left
      this.right = right
      this.editor = editor
      this.latlngs = latlngs
      L.Marker.prototype.initialize.call(this, this.computeLatLng(), options)
      this._opacity = this.options.opacity
      this.options.icon = this.editor.tools.createVertexIcon({
        className: this.options.className,
      })
      this.editor.editLayer.addLayer(this)
      this.setVisibility()
    },

    setVisibility: function () {
      const leftPoint = this._map.latLngToContainerPoint(this.left.latlng)
      const rightPoint = this._map.latLngToContainerPoint(this.right.latlng)
      const size = L.point(this.options.icon.options.iconSize)
      if (leftPoint.distanceTo(rightPoint) < size.x * 3) this.hide()
      else this.show()
    },

    show: function () {
      this.setOpacity(this._opacity)
    },

    hide: function () {
      this.setOpacity(0)
    },

    updateLatLng: function () {
      this.setLatLng(this.computeLatLng())
      this.setVisibility()
    },

    computeLatLng: function () {
      const leftPoint = this.editor.map.latLngToContainerPoint(this.left.latlng)
      const rightPoint = this.editor.map.latLngToContainerPoint(this.right.latlng)
      const y = (leftPoint.y + rightPoint.y) / 2
      const x = (leftPoint.x + rightPoint.x) / 2
      return this.editor.map.containerPointToLatLng([x, y])
    },

    onAdd: function (map) {
      L.Marker.prototype.onAdd.call(this, map)
      L.DomEvent.on(this._icon, 'mousedown touchstart', this.onMouseDown, this)
      map.on('zoomend', this.setVisibility, this)
    },

    onRemove: function (map) {
      delete this.right.middleMarker
      L.DomEvent.off(this._icon, 'mousedown touchstart', this.onMouseDown, this)
      map.off('zoomend', this.setVisibility, this)
      L.Marker.prototype.onRemove.call(this, map)
    },

    onMouseDown: function (e) {
      const iconPos = L.DomUtil.getPosition(this._icon)
      const latlng = this.editor.map.layerPointToLatLng(iconPos)
      e = {
        originalEvent: e,
        latlng: latlng,
      }
      if (this.options.opacity === 0) return
      L.Editable.makeCancellable(e)
      this.editor.onMiddleMarkerMouseDown(e)
      if (e._cancelled) return
      this.latlngs.splice(this.index(), 0, e.latlng)
      this.editor.refresh()
      const icon = this._icon
      const marker = this.editor.addVertexMarker(e.latlng, this.latlngs)
      this.editor.onNewVertex(marker)
      /* Hack to workaround browser not firing touchend when element is no more on DOM */
      const parent = marker._icon.parentNode
      parent.removeChild(marker._icon)
      marker._icon = icon
      parent.appendChild(marker._icon)
      marker._initIcon()
      marker._initInteraction()
      marker.setOpacity(1)
      /* End hack */
      // Transfer ongoing dragging to real marker
      L.Draggable._dragging = false
      marker.dragging._draggable._onDown(e.originalEvent)
      this.delete()
    },

    delete: function () {
      this.editor.editLayer.removeLayer(this)
    },

    index: function () {
      return this.latlngs.indexOf(this.right.latlng)
    },
  })

  L.Editable.mergeOptions({
    // 🍂namespace Editable
    // 🍂option middleMarkerClass: class = VertexMarker
    // Class to be used as middle vertex, pulled by the user to create a new point in the middle of a path.
    middleMarkerClass: L.Editable.MiddleMarker,
  })

  // 🍂namespace Editable; 🍂class BaseEditor; 🍂aka L.Editable.BaseEditor
  // When editing a feature (Marker, Polyline…), an editor is attached to it. This
  // editor basically knows how to handle the edition.
  L.Editable.BaseEditor = L.Handler.extend({
    initialize: function (map, feature, options) {
      L.setOptions(this, options)
      this.map = map
      this.feature = feature
      this.feature.editor = this
      this.editLayer = new L.LayerGroup()
      this.tools = this.options.editTools || map.editTools
    },

    // 🍂method enable(): this
    // Set up the drawing tools for the feature to be editable.
    addHooks: function () {
      if (this.isConnected()) this.onFeatureAdd()
      else this.feature.once('add', this.onFeatureAdd, this)
      this.onEnable()
      this.feature.on(this._getEvents(), this)
    },

    // 🍂method disable(): this
    // Remove the drawing tools for the feature.
    removeHooks: function () {
      this.feature.off(this._getEvents(), this)
      if (this.feature.dragging) this.feature.dragging.disable()
      this.editLayer.clearLayers()
      this.tools.editLayer.removeLayer(this.editLayer)
      this.onDisable()
      if (this._drawing) this.cancelDrawing()
    },

    // 🍂method drawing(): boolean
    // Return true if any drawing action is ongoing with this editor.
    drawing: function () {
      return !!this._drawing
    },

    reset: () => {},

    onFeatureAdd: function () {
      this.tools.editLayer.addLayer(this.editLayer)
      if (this.feature.dragging) this.feature.dragging.enable()
    },

    hasMiddleMarkers: function () {
      return !this.options.skipMiddleMarkers && !this.tools.options.skipMiddleMarkers
    },

    fireAndForward: function (type, e) {
      e = e || {}
      e.layer = this.feature
      this.feature.fire(type, e)
      this.tools.fireAndForward(type, e)
    },

    onEnable: function () {
      // 🍂namespace Editable
      // 🍂event editable:enable: Event
      // Fired when an existing feature is ready to be edited.
      this.fireAndForward('editable:enable')
    },

    onDisable: function () {
      // 🍂namespace Editable
      // 🍂event editable:disable: Event
      // Fired when an existing feature is not ready anymore to be edited.
      this.fireAndForward('editable:disable')
    },

    onEditing: function () {
      // 🍂namespace Editable
      // 🍂event editable:editing: Event
      // Fired as soon as any change is made to the feature geometry.
      this.fireAndForward('editable:editing')
    },

    onEdited: function () {
      // 🍂namespace Editable
      // 🍂event editable:edited: Event
      // Fired after any change is made to the feature geometry.
      this.fireAndForward('editable:edited')
    },

    onStartDrawing: function () {
      // 🍂namespace Editable
      // 🍂section Drawing events
      // 🍂event editable:drawing:start: Event
      // Fired when a feature is to be drawn.
      this.fireAndForward('editable:drawing:start')
    },

    onEndDrawing: function () {
      // 🍂namespace Editable
      // 🍂section Drawing events
      // 🍂event editable:drawing:end: Event
      // Fired when a feature is not drawn anymore.
      this.fireAndForward('editable:drawing:end')
    },

    onCancelDrawing: function () {
      // 🍂namespace Editable
      // 🍂section Drawing events
      // 🍂event editable:drawing:cancel: Event
      // Fired when user cancel drawing while a feature is being drawn.
      this.fireAndForward('editable:drawing:cancel')
    },

    onCommitDrawing: function (e) {
      // 🍂namespace Editable
      // 🍂section Drawing events
      // 🍂event editable:drawing:commit: Event
      // Fired when user finish drawing a feature.
      this.fireAndForward('editable:drawing:commit', e)
      this.onEdited()
    },

    onDrawingMouseDown: function (e) {
      // 🍂namespace Editable
      // 🍂section Drawing events
      // 🍂event editable:drawing:mousedown: Event
      // Fired when user `mousedown` while drawing.
      this.fireAndForward('editable:drawing:mousedown', e)
    },

    onDrawingMouseUp: function (e) {
      // 🍂namespace Editable
      // 🍂section Drawing events
      // 🍂event editable:drawing:mouseup: Event
      // Fired when user `mouseup` while drawing.
      this.fireAndForward('editable:drawing:mouseup', e)
    },

    startDrawing: function () {
      if (!this._drawing) this._drawing = L.Editable.FORWARD
      this.tools.registerForDrawing(this)
      this.onStartDrawing()
    },

    commitDrawing: function (e) {
      this.onCommitDrawing(e)
      this.endDrawing()
    },

    cancelDrawing: function () {
      // If called during a vertex drag, the vertex will be removed before
      // the mouseup fires on it. This is a workaround. Maybe better fix is
      // To have L.Draggable reset it's status on disable (Leaflet side).
      L.Draggable._dragging = false
      this.onCancelDrawing()
      this.endDrawing()
    },

    endDrawing: function () {
      this._drawing = false
      this.tools.unregisterForDrawing(this)
      this.onEndDrawing()
    },

    onDrawingClick: function (e) {
      if (!this.drawing()) return
      L.Editable.makeCancellable(e)
      // 🍂namespace Editable
      // 🍂section Drawing events
      // 🍂event editable:drawing:click: CancelableEvent
      // Fired when user `click` while drawing, before any internal action is being processed.
      this.fireAndForward('editable:drawing:click', e)
      if (e._cancelled) return
      if (!this.isConnected()) this.connect(e)
      this.processDrawingClick(e)
    },

    isConnected: function () {
      return this.map.hasLayer(this.feature)
    },

    connect: function () {
      this.tools.connectCreatedToMap(this.feature)
      this.tools.editLayer.addLayer(this.editLayer)
    },

    onMove: function (e) {
      // 🍂namespace Editable
      // 🍂section Drawing events
      // 🍂event editable:drawing:move: Event
      // Fired when `move` mouse while drawing, while dragging a marker, and while dragging a vertex.
      this.fireAndForward('editable:drawing:move', e)
    },

    onDrawingMouseMove: function (e) {
      this.onMove(e)
    },

    _getEvents: function () {
      return {
        dragstart: this.onDragStart,
        drag: this.onDrag,
        dragend: this.onDragEnd,
        remove: this.disable,
      }
    },

    onDragStart: function (e) {
      this.onEditing()
      // 🍂namespace Editable
      // 🍂event editable:dragstart: Event
      // Fired before a path feature is dragged.
      this.fireAndForward('editable:dragstart', e)
    },

    onDrag: function (e) {
      this.onMove(e)
      // 🍂namespace Editable
      // 🍂event editable:drag: Event
      // Fired when a path feature is being dragged.
      this.fireAndForward('editable:drag', e)
    },

    onDragEnd: function (e) {
      // 🍂namespace Editable
      // 🍂event editable:dragend: Event
      // Fired after a path feature has been dragged.
      this.fireAndForward('editable:dragend', e)
      this.onEdited()
    },
  })

  // 🍂namespace Editable; 🍂class MarkerEditor; 🍂aka L.Editable.MarkerEditor
  // 🍂inherits BaseEditor
  // Editor for Marker.
  L.Editable.MarkerEditor = L.Editable.BaseEditor.extend({
    onDrawingMouseMove: function (e) {
      L.Editable.BaseEditor.prototype.onDrawingMouseMove.call(this, e)
      if (this._drawing) this.feature.setLatLng(e.latlng)
    },

    processDrawingClick: function (e) {
      // 🍂namespace Editable
      // 🍂section Drawing events
      // 🍂event editable:drawing:clicked: Event
      // Fired when user `click` while drawing, after all internal actions.
      this.fireAndForward('editable:drawing:clicked', e)
      this.commitDrawing(e)
    },

    connect: function (e) {
      // On touch, the latlng has not been updated because there is
      // no mousemove.
      if (e) this.feature._latlng = e.latlng
      L.Editable.BaseEditor.prototype.connect.call(this, e)
    },
  })

  // 🍂namespace Editable; 🍂class CircleMarkerEditor; 🍂aka L.Editable.CircleMarkerEditor
  // 🍂inherits BaseEditor
  // Editor for CircleMarker.
  L.Editable.CircleMarkerEditor = L.Editable.BaseEditor.extend({
    onDrawingMouseMove: function (e) {
      L.Editable.BaseEditor.prototype.onDrawingMouseMove.call(this, e)
      if (this._drawing) this.feature.setLatLng(e.latlng)
    },

    processDrawingClick: function (e) {
      // 🍂namespace Editable
      // 🍂section Drawing events
      // 🍂event editable:drawing:clicked: Event
      // Fired when user `click` while drawing, after all internal actions.
      this.fireAndForward('editable:drawing:clicked', e)
      this.commitDrawing(e)
    },

    connect: function (e) {
      // On touch, the latlng has not been updated because there is
      // no mousemove.
      if (e) this.feature._latlng = e.latlng
      L.Editable.BaseEditor.prototype.connect.call(this, e)
    },
  })

  // 🍂namespace Editable; 🍂class PathEditor; 🍂aka L.Editable.PathEditor
  // 🍂inherits BaseEditor
  // Base class for all path editors.
  L.Editable.PathEditor = L.Editable.BaseEditor.extend({
    CLOSED: false,
    MIN_VERTEX: 2,

    addHooks: function () {
      L.Editable.BaseEditor.prototype.addHooks.call(this)
      if (this.feature) {
        this.initVertexMarkers()
        this.map.on('moveend', this.onMoveEnd, this)
      }
      return this
    },

    removeHooks: function () {
      L.Editable.BaseEditor.prototype.removeHooks.call(this)
      if (this.feature) {
        this.map.off('moveend', this.onMoveEnd, this)
      }
    },

    onMoveEnd: function () {
      this.initVertexMarkers()
    },

    initVertexMarkers: function (latlngs) {
      if (!this.enabled()) return
      latlngs = latlngs || this.getLatLngs()
      if (isFlat(latlngs)) {
        this.addVertexMarkers(latlngs)
      } else {
        for (const member of latlngs) {
          this.initVertexMarkers(member)
        }
      }
    },

    getLatLngs: function () {
      return this.feature.getLatLngs()
    },

    // 🍂method reset()
    // Rebuild edit elements (Vertex, MiddleMarker, etc.).
    reset: function () {
      this.editLayer.clearLayers()
      this.initVertexMarkers()
    },

    addVertexMarker: function (latlng, latlngs) {
      if (latlng.__vertex) {
        latlng.__vertex.connect()
        return latlng.__vertex
      }
      return new this.tools.options.vertexMarkerClass(latlng, latlngs, this)
    },

    onNewVertex: function (vertex) {
      // 🍂namespace Editable
      // 🍂section Vertex events
      // 🍂event editable:vertex:new: VertexEvent
      // Fired when a new vertex is created.
      this.fireAndForward('editable:vertex:new', {
        latlng: vertex.latlng,
        vertex: vertex,
      })
    },

    addVertexMarkers: function (latlngs) {
      const bounds = this.map.getBounds()
      for (const latlng of latlngs) {
        if (!bounds.contains(latlng)) continue
        this.addVertexMarker(latlng, latlngs)
      }
    },

    refreshVertexMarkers: function (latlngs) {
      latlngs = latlngs || this.getDefaultLatLngs()
      for (const latlng of latlngs) {
        latlng.__vertex.update()
      }
    },

    addMiddleMarker: function (left, right, latlngs) {
      return new this.tools.options.middleMarkerClass(left, right, latlngs, this)
    },

    onVertexMarkerClick: function (e) {
      L.Editable.makeCancellable(e)
      // 🍂namespace Editable
      // 🍂section Vertex events
      // 🍂event editable:vertex:click: CancelableVertexEvent
      // Fired when a `click` is issued on a vertex, before any internal action is being processed.
      this.fireAndForward('editable:vertex:click', e)
      if (e._cancelled) return
      if (this.tools.drawing() && this.tools._drawingEditor !== this) return
      const index = e.vertex.getIndex()
      let commit
      if (e.originalEvent.ctrlKey) {
        this.onVertexMarkerCtrlClick(e)
      } else if (e.originalEvent.altKey) {
        this.onVertexMarkerAltClick(e)
      } else if (e.originalEvent.shiftKey) {
        this.onVertexMarkerShiftClick(e)
      } else if (e.originalEvent.metaKey) {
        this.onVertexMarkerMetaKeyClick(e)
      } else if (
        index === e.vertex.getLastIndex() &&
        this._drawing === L.Editable.FORWARD
      ) {
        if (index >= this.MIN_VERTEX - 1) commit = true
      } else if (
        index === 0 &&
        this._drawing === L.Editable.BACKWARD &&
        this._drawnLatLngs.length >= this.MIN_VERTEX
      ) {
        commit = true
      } else if (
        index === 0 &&
        this._drawing === L.Editable.FORWARD &&
        this._drawnLatLngs.length >= this.MIN_VERTEX &&
        this.CLOSED
      ) {
        commit = true // Allow to close on first point also for polygons
      } else {
        this.onVertexRawMarkerClick(e)
      }
      // 🍂namespace Editable
      // 🍂section Vertex events
      // 🍂event editable:vertex:clicked: VertexEvent
      // Fired when a `click` is issued on a vertex, after all internal actions.
      this.fireAndForward('editable:vertex:clicked', e)
      if (commit) this.commitDrawing(e)
    },

    onVertexRawMarkerClick: function (e) {
      // 🍂namespace Editable
      // 🍂section Vertex events
      // 🍂event editable:vertex:rawclick: CancelableVertexEvent
      // Fired when a `click` is issued on a vertex without any special key and without being in drawing mode.
      this.fireAndForward('editable:vertex:rawclick', e)
      if (e._cancelled) return
      if (!this.vertexCanBeDeleted(e.vertex)) return
      e.vertex.delete()
    },

    vertexCanBeDeleted: function (vertex) {
      return vertex.latlngs.length > this.MIN_VERTEX
    },

    onVertexDeleted: function (e) {
      // 🍂namespace Editable
      // 🍂section Vertex events
      // 🍂event editable:vertex:deleted: VertexEvent
      // Fired after a vertex has been deleted by user.
      this.fireAndForward('editable:vertex:deleted', e)
      this.onEdited()
    },

    onVertexMarkerCtrlClick: function (e) {
      // 🍂namespace Editable
      // 🍂section Vertex events
      // 🍂event editable:vertex:ctrlclick: VertexEvent
      // Fired when a `click` with `ctrlKey` is issued on a vertex.
      this.fireAndForward('editable:vertex:ctrlclick', e)
    },

    onVertexMarkerShiftClick: function (e) {
      // 🍂namespace Editable
      // 🍂section Vertex events
      // 🍂event editable:vertex:shiftclick: VertexEvent
      // Fired when a `click` with `shiftKey` is issued on a vertex.
      this.fireAndForward('editable:vertex:shiftclick', e)
    },

    onVertexMarkerMetaKeyClick: function (e) {
      // 🍂namespace Editable
      // 🍂section Vertex events
      // 🍂event editable:vertex:metakeyclick: VertexEvent
      // Fired when a `click` with `metaKey` is issued on a vertex.
      this.fireAndForward('editable:vertex:metakeyclick', e)
    },

    onVertexMarkerAltClick: function (e) {
      // 🍂namespace Editable
      // 🍂section Vertex events
      // 🍂event editable:vertex:altclick: VertexEvent
      // Fired when a `click` with `altKey` is issued on a vertex.
      this.fireAndForward('editable:vertex:altclick', e)
    },

    onVertexMarkerContextMenu: function (e) {
      // 🍂namespace Editable
      // 🍂section Vertex events
      // 🍂event editable:vertex:contextmenu: VertexEvent
      // Fired when a `contextmenu` is issued on a vertex.
      this.fireAndForward('editable:vertex:contextmenu', e)
    },

    onVertexMarkerMouseDown: function (e) {
      // 🍂namespace Editable
      // 🍂section Vertex events
      // 🍂event editable:vertex:mousedown: VertexEvent
      // Fired when user `mousedown` a vertex.
      this.fireAndForward('editable:vertex:mousedown', e)
    },

    onVertexMarkerMouseOver: function (e) {
      // 🍂namespace Editable
      // 🍂section Vertex events
      // 🍂event editable:vertex:mouseover: VertexEvent
      // Fired when a user's mouse enters the vertex
      this.fireAndForward('editable:vertex:mouseover', e)
    },

    onVertexMarkerMouseOut: function (e) {
      // 🍂namespace Editable
      // 🍂section Vertex events
      // 🍂event editable:vertex:mouseout: VertexEvent
      // Fired when a user's mouse leaves the vertex
      this.fireAndForward('editable:vertex:mouseout', e)
    },

    onMiddleMarkerMouseDown: function (e) {
      // 🍂namespace Editable
      // 🍂section MiddleMarker events
      // 🍂event editable:middlemarker:mousedown: VertexEvent
      // Fired when user `mousedown` a middle marker.
      this.fireAndForward('editable:middlemarker:mousedown', e)
    },

    onVertexMarkerDrag: function (e) {
      this.onMove(e)
      if (this.feature._bounds) this.extendBounds(e)
      // 🍂namespace Editable
      // 🍂section Vertex events
      // 🍂event editable:vertex:drag: VertexEvent
      // Fired when a vertex is dragged by user.
      this.fireAndForward('editable:vertex:drag', e)
    },

    onVertexMarkerDragStart: function (e) {
      // 🍂namespace Editable
      // 🍂section Vertex events
      // 🍂event editable:vertex:dragstart: VertexEvent
      // Fired before a vertex is dragged by user.
      this.fireAndForward('editable:vertex:dragstart', e)
    },

    onVertexMarkerDragEnd: function (e) {
      // 🍂namespace Editable
      // 🍂section Vertex events
      // 🍂event editable:vertex:dragend: VertexEvent
      // Fired after a vertex is dragged by user.
      this.fireAndForward('editable:vertex:dragend', e)
      this.onEdited()
    },

    setDrawnLatLngs: function (latlngs) {
      this._drawnLatLngs = latlngs || this.getDefaultLatLngs()
    },

    startDrawing: function () {
      if (!this._drawnLatLngs) this.setDrawnLatLngs()
      L.Editable.BaseEditor.prototype.startDrawing.call(this)
    },

    startDrawingForward: function () {
      this.startDrawing()
    },

    endDrawing: function () {
      this.tools.detachForwardLineGuide()
      this.tools.detachBackwardLineGuide()
      if (this._drawnLatLngs && this._drawnLatLngs.length < this.MIN_VERTEX)
        this.deleteShape(this._drawnLatLngs)
      L.Editable.BaseEditor.prototype.endDrawing.call(this)
      delete this._drawnLatLngs
    },

    addLatLng: function (latlng) {
      if (this._drawing === L.Editable.FORWARD) this._drawnLatLngs.push(latlng)
      else this._drawnLatLngs.unshift(latlng)
      this.feature._bounds.extend(latlng)
      const vertex = this.addVertexMarker(latlng, this._drawnLatLngs)
      this.onNewVertex(vertex)
      this.refresh()
    },

    newPointForward: function (latlng) {
      this.addLatLng(latlng)
      this.tools.attachForwardLineGuide()
      this.tools.anchorForwardLineGuide(latlng)
    },

    newPointBackward: function (latlng) {
      this.addLatLng(latlng)
      this.tools.anchorBackwardLineGuide(latlng)
    },

    // 🍂namespace PathEditor
    // 🍂method push()
    // Programmatically add a point while drawing.
    push: function (latlng) {
      if (!latlng)
        return console.error(
          'L.Editable.PathEditor.push expect a valid latlng as parameter'
        )
      if (this._drawing === L.Editable.FORWARD) this.newPointForward(latlng)
      else this.newPointBackward(latlng)
    },

    removeLatLng: function (latlng) {
      latlng.__vertex.delete()
      this.refresh()
    },

    // 🍂method pop(): L.LatLng or null
    // Programmatically remove last point (if any) while drawing.
    pop: function () {
      if (this._drawnLatLngs.length <= 1) return
      let latlng
      if (this._drawing === L.Editable.FORWARD) {
        latlng = this._drawnLatLngs[this._drawnLatLngs.length - 1]
      } else {
        latlng = this._drawnLatLngs[0]
      }
      this.removeLatLng(latlng)
      if (this._drawing === L.Editable.FORWARD) {
        this.tools.anchorForwardLineGuide(
          this._drawnLatLngs[this._drawnLatLngs.length - 1]
        )
      } else {
        this.tools.anchorForwardLineGuide(this._drawnLatLngs[0])
      }
      return latlng
    },

    processDrawingClick: function (e) {
      if (e.vertex && e.vertex.editor === this) return
      if (this._drawing === L.Editable.FORWARD) this.newPointForward(e.latlng)
      else this.newPointBackward(e.latlng)
      this.fireAndForward('editable:drawing:clicked', e)
    },

    onDrawingMouseMove: function (e) {
      L.Editable.BaseEditor.prototype.onDrawingMouseMove.call(this, e)
      if (this._drawing) {
        this.tools.moveForwardLineGuide(e.latlng)
        this.tools.moveBackwardLineGuide(e.latlng)
      }
    },

    refresh: function () {
      this.feature.redraw()
      this.onEditing()
    },

    // 🍂namespace PathEditor
    // 🍂method newShape(latlng?: L.LatLng)
    // Add a new shape (Polyline, Polygon) in a multi, and setup up drawing tools to draw it;
    // if optional `latlng` is given, start a path at this point.
    newShape: function (latlng) {
      const shape = this.addNewEmptyShape()
      if (!shape) return
      this.setDrawnLatLngs(shape[0] || shape) // Polygon or polyline
      this.startDrawingForward()
      // 🍂namespace Editable
      // 🍂section Shape events
      // 🍂event editable:shape:new: ShapeEvent
      // Fired when a new shape is created in a multi (Polygon or Polyline).
      this.fireAndForward('editable:shape:new', { shape: shape })
      if (latlng) this.newPointForward(latlng)
    },

    deleteShape: function (shape, latlngs) {
      const e = { shape: shape }
      L.Editable.makeCancellable(e)
      // 🍂namespace Editable
      // 🍂section Shape events
      // 🍂event editable:shape:delete: CancelableShapeEvent
      // Fired before a new shape is deleted in a multi (Polygon or Polyline).
      this.fireAndForward('editable:shape:delete', e)
      if (e._cancelled) return
      shape = this._deleteShape(shape, latlngs)
      if (this.ensureNotFlat) this.ensureNotFlat() // Polygon.
      this.feature.setLatLngs(this.getLatLngs()) // Force bounds reset.
      this.refresh()
      this.reset()
      // 🍂namespace Editable
      // 🍂section Shape events
      // 🍂event editable:shape:deleted: ShapeEvent
      // Fired after a new shape is deleted in a multi (Polygon or Polyline).
      this.fireAndForward('editable:shape:deleted', { shape: shape })
      this.onEdited()
      return shape
    },

    _deleteShape: function (shape, latlngs) {
      latlngs = latlngs || this.getLatLngs()
      if (!latlngs.length) return
      const inplaceDelete = (latlngs, shape) => {
        // Called when deleting a flat latlngs
        return latlngs.splice(0, Number.MAX_VALUE)
      }
      const spliceDelete = (latlngs, shape) => {