leaflet.draw.js

/*
 Leaflet.draw, a plugin that adds drawing and editing tools to Leaflet powered maps.
 (c) 2012-2013, Jacob Toye, Smartrak

 https://github.com/Leaflet/Leaflet.draw
 http://leafletjs.com
 https://github.com/jacobtoye
 */
(function (window, document, undefined) {/*
 * Leaflet.draw assumes that you have already included the Leaflet library.
 */

    L.drawVersion = '0.2.3-dev';

    L.drawLocal = {
        draw: {
            toolbar: {
                actions: {
                    title: 'Cancel drawing',
                    text: 'Cancel'
                },
                buttons: {
                    polyline: 'Draw a polyline',
                    polygon: 'Draw a polygon',
                    rectangle: 'Draw a rectangle',
                    circle: 'Draw a circle',
                    marker1: 'Draw first marker',
                    marker2: 'Draw second marker'
                }
            },
            handlers: {
                circle: {
                    tooltip: {
                        start: 'Click and drag to draw circle.'
                    }
                },
                polygon: {
                    tooltip: {
                        start: 'Click to start drawing shape.',
                        cont: 'Click to continue drawing shape.',
                        end: 'Click first point to close this shape.'
                    }
                },
                polyline: {
                    error: '<strong>Error:</strong> shape edges cannot cross!',
                    tooltip: {
                        start: 'Click to start drawing line.',
                        cont: 'Click to continue drawing line.',
                        end: 'Click last point to finish line.'
                    }
                },
                rectangle: {
                    tooltip: {
                        start: 'Click and drag to draw rectangle.'
                    }
                },
                simpleshape: {
                    tooltip: {
                        end: 'Release mouse to finish drawing.'
                    }
                },
                marker: {
                    tooltip: {
                        start: 'Click map to place marker.'
                    }
                }
            }
        },
        edit: {
            toolbar: {
                actions: {
                    save: {
                        title: 'Save changes.',
                        text: 'Save'
                    },
                    cancel: {
                        title: 'Cancel editing, discards all changes.',
                        text: 'Cancel'
                    }
                },
                buttons: {
                    edit: 'Edit layers.',
                    editDisabled: 'No layers to edit.',
                    remove: 'Delete layers.',
                    removeDisabled: 'No layers to delete.'
                }
            },
            handlers: {
                edit: {
                    tooltip: {
                        text: 'Drag handles, or marker to edit feature.',
                        subtext: 'Click cancel to undo changes.'
                    }
                },
                remove: {
                    tooltip: {
                        text: 'Click on a feature to remove'
                    }
                }
            }
        }
    };

    L.Draw = {};

    L.Draw.Feature = L.Handler.extend({
        includes: L.Mixin.Events,

        initialize: function (map, options) {
            this._map = map;
            this._container = map._container;
            this._overlayPane = map._panes.overlayPane;
            this._popupPane = map._panes.popupPane;

            // Merge default shapeOptions options with custom shapeOptions
            if (options && options.shapeOptions) {
                options.shapeOptions = L.Util.extend({}, this.options.shapeOptions, options.shapeOptions);
            }
            L.setOptions(this, options);
        },

        enable: function () {
            if (this._enabled) { return; }

            L.Handler.prototype.enable.call(this);

            this.fire('enabled', { handler: this.type });

            this._map.fire('draw:drawstart', { layerType: this.type });
        },

        disable: function () {
            if (!this._enabled) { return; }

            L.Handler.prototype.disable.call(this);

            this.fire('disabled', { handler: this.type });

            this._map.fire('draw:drawstop', { layerType: this.type });
        },

        addHooks: function () {
            var map = this._map;

            if (map) {
                L.DomUtil.disableTextSelection();

                map.getContainer().focus();

                this._tooltip = new L.Tooltip(this._map);

                L.DomEvent.addListener(this._container, 'keyup', this._cancelDrawing, this);
            }
        },

        removeHooks: function () {
            if (this._map) {
                L.DomUtil.enableTextSelection();

                this._tooltip.dispose();
                this._tooltip = null;

                L.DomEvent.removeListener(this._container, 'keyup', this._cancelDrawing);
            }
        },

        setOptions: function (options) {
            L.setOptions(this, options);
        },

        _fireCreatedEvent: function (layer) {
            this._map.fire('draw:created', { layer: layer, layerType: this.type });
        },

        // Cancel drawing when the escape key is pressed
        _cancelDrawing: function (e) {
            if (e.keyCode === 27) {
                this.disable();
            }
        }
    });

    L.Draw.Polyline = L.Draw.Feature.extend({
        statics: {
            TYPE: 'polyline'
        },

        Poly: L.Polyline,

        options: {
            allowIntersection: true,
            repeatMode: false,
            drawError: {
                color: '#b00b00',
                timeout: 2500
            },
            icon: new L.DivIcon({
                iconSize: new L.Point(8, 8),
                className: 'leaflet-div-icon leaflet-editing-icon'
            }),
            guidelineDistance: 20,
            shapeOptions: {
                stroke: true,
                color: '#f06eaa',
                weight: 4,
                opacity: 0.5,
                fill: false,
                clickable: true
            },
            metric: true, // Whether to use the metric meaurement system or imperial
            showLength: true, // Whether to display distance in the tooltip
            zIndexOffset: 2000 // This should be > than the highest z-index any map layers
        },

        initialize: function (map, options) {
            // Need to set this here to ensure the correct message is used.
            this.options.drawError.message = L.drawLocal.draw.handlers.polyline.error;

            // Merge default drawError options with custom options
            if (options && options.drawError) {
                options.drawError = L.Util.extend({}, this.options.drawError, options.drawError);
            }

            // Save the type so super can fire, need to do this as cannot do this.TYPE :(
            this.type = L.Draw.Polyline.TYPE;

            L.Draw.Feature.prototype.initialize.call(this, map, options);
        },

        addHooks: function () {
            L.Draw.Feature.prototype.addHooks.call(this);
            if (this._map) {
                this._markers = [];

                this._markerGroup = new L.LayerGroup();
                this._map.addLayer(this._markerGroup);

                this._poly = new L.Polyline([], this.options.shapeOptions);

                this._tooltip.updateContent(this._getTooltipText());

                // Make a transparent marker that will used to catch click events. These click
                // events will create the vertices. We need to do this so we can ensure that
                // we can create vertices over other map layers (markers, vector layers). We
                // also do not want to trigger any click handlers of objects we are clicking on
                // while drawing.
                if (!this._mouseMarker) {
                    this._mouseMarker = L.marker(this._map.getCenter(), {
                        icon: L.divIcon({
                            className: 'leaflet-mouse-marker',
                            iconAnchor: [20, 20],
                            iconSize: [40, 40]
                        }),
                        opacity: 0,
                        zIndexOffset: this.options.zIndexOffset
                    });
                }

                this._mouseMarker
                    .on('click', this._onClick, this)
                    .addTo(this._map);

                this._map
                    .on('mousemove', this._onMouseMove, this)
                    .on('zoomend', this._onZoomEnd, this);
            }
        },

        removeHooks: function () {
            L.Draw.Feature.prototype.removeHooks.call(this);

            this._clearHideErrorTimeout();

            this._cleanUpShape();

            // remove markers from map
            this._map.removeLayer(this._markerGroup);
            delete this._markerGroup;
            delete this._markers;

            this._map.removeLayer(this._poly);
            delete this._poly;

            this._mouseMarker.off('click', this._onClick, this);
            this._map.removeLayer(this._mouseMarker);
            delete this._mouseMarker;

            // clean up DOM
            this._clearGuides();

            this._map
                .off('mousemove', this._onMouseMove, this)
                .off('zoomend', this._onZoomEnd, this);
        },

        _finishShape: function () {
            var intersects = this._poly.newLatLngIntersects(this._poly.getLatLngs()[0], true);

            if ((!this.options.allowIntersection && intersects) || !this._shapeIsValid()) {
                this._showErrorTooltip();
                return;
            }

            this._fireCreatedEvent();
            this.disable();
            if (this.options.repeatMode) {
                this.enable();
            }
        },

        //Called to verify the shape is valid when the user tries to finish it
        //Return false if the shape is not valid
        _shapeIsValid: function () {
            return true;
        },

        _onZoomEnd: function () {
            this._updateGuide();
        },

        _onMouseMove: function (e) {
            var newPos = e.layerPoint,
                latlng = e.latlng;

            // Save latlng
            // should this be moved to _updateGuide() ?
            this._currentLatLng = latlng;

            this._updateTooltip(latlng);

            // Update the guide line
            this._updateGuide(newPos);

            // Update the mouse marker position
            this._mouseMarker.setLatLng(latlng);

            L.DomEvent.preventDefault(e.originalEvent);
        },

        _onClick: function (e) {
            var latlng = e.target.getLatLng(),
                markerCount = this._markers.length;

            if (markerCount > 0 && !this.options.allowIntersection && this._poly.newLatLngIntersects(latlng)) {
                this._showErrorTooltip();
                return;
            }
            else if (this._errorShown) {
                this._hideErrorTooltip();
            }

            this._markers.push(this._createMarker(latlng));

            this._poly.addLatLng(latlng);

            if (this._poly.getLatLngs().length === 2) {
                this._map.addLayer(this._poly);
            }

            this._updateFinishHandler();

            this._vertexAdded(latlng);

            this._clearGuides();

            this._updateTooltip();
        },

        _updateFinishHandler: function () {
            var markerCount = this._markers.length;
            // The last marker should have a click handler to close the polyline
            if (markerCount > 1) {
                this._markers[markerCount - 1].on('click', this._finishShape, this);
            }

            // Remove the old marker click handler (as only the last point should close the polyline)
            if (markerCount > 2) {
                this._markers[markerCount - 2].off('click', this._finishShape, this);
            }
        },

        _createMarker: function (latlng) {
            var marker = new L.Marker(latlng, {
                icon: this.options.icon,
                zIndexOffset: this.options.zIndexOffset * 2
            });

            this._markerGroup.addLayer(marker);

            return marker;
        },

        _updateGuide: function (newPos) {
            var markerCount = this._markers.length;

            if (markerCount > 0) {
                newPos = newPos || this._map.latLngToLayerPoint(this._currentLatLng);

                // draw the guide line
                this._clearGuides();
                this._drawGuide(
                    this._map.latLngToLayerPoint(this._markers[markerCount - 1].getLatLng()),
                    newPos
                );
            }
        },

        _updateTooltip: function (latLng) {
            var text = this._getTooltipText();

            if (latLng) {
                this._tooltip.updatePosition(latLng);
            }

            if (!this._errorShown) {
                this._tooltip.updateContent(text);
            }
        },

        _drawGuide: function (pointA, pointB) {
            var length = Math.floor(Math.sqrt(Math.pow((pointB.x - pointA.x), 2) + Math.pow((pointB.y - pointA.y), 2))),
                i,
                fraction,
                dashPoint,
                dash;

            //create the guides container if we haven't yet
            if (!this._guidesContainer) {
                this._guidesContainer = L.DomUtil.create('div', 'leaflet-draw-guides', this._overlayPane);
            }

            //draw a dash every GuildeLineDistance
            for (i = this.options.guidelineDistance; i < length; i += this.options.guidelineDistance) {
                //work out fraction along line we are
                fraction = i / length;

                //calculate new x,y point
                dashPoint = {
                    x: Math.floor((pointA.x * (1 - fraction)) + (fraction * pointB.x)),
                    y: Math.floor((pointA.y * (1 - fraction)) + (fraction * pointB.y))
                };

                //add guide dash to guide container
                dash = L.DomUtil.create('div', 'leaflet-draw-guide-dash', this._guidesContainer);
                dash.style.backgroundColor =
                    !this._errorShown ? this.options.shapeOptions.color : this.options.drawError.color;

                L.DomUtil.setPosition(dash, dashPoint);
            }
        },

        _updateGuideColor: function (color) {
            if (this._guidesContainer) {
                for (var i = 0, l = this._guidesContainer.childNodes.length; i < l; i++) {
                    this._guidesContainer.childNodes[i].style.backgroundColor = color;
                }
            }
        },

        // removes all child elements (guide dashes) from the guides container
        _clearGuides: function () {
            if (this._guidesContainer) {
                while (this._guidesContainer.firstChild) {
                    this._guidesContainer.removeChild(this._guidesContainer.firstChild);
                }
            }
        },

        _getTooltipText: function () {
            var showLength = this.options.showLength,
                labelText, distanceStr;

            if (this._markers.length === 0) {
                labelText = {
                    text: L.drawLocal.draw.handlers.polyline.tooltip.start
                };
            } else {
                distanceStr = showLength ? this._getMeasurementString() : '';

                if (this._markers.length === 1) {
                    labelText = {
                        text: L.drawLocal.draw.handlers.polyline.tooltip.cont,
                        subtext: distanceStr
                    };
                } else {
                    labelText = {
                        text: L.drawLocal.draw.handlers.polyline.tooltip.end,
                        subtext: distanceStr
                    };
                }
            }
            return labelText;
        },

        _getMeasurementString: function () {
            var currentLatLng = this._currentLatLng,
                previousLatLng = this._markers[this._markers.length - 1].getLatLng(),
                distance;

            // calculate the distance from the last fixed point to the mouse position
            distance = this._measurementRunningTotal + currentLatLng.distanceTo(previousLatLng);

            return L.GeometryUtil.readableDistance(distance, this.options.metric);
        },

        _showErrorTooltip: function () {
            this._errorShown = true;

            // Update tooltip
            this._tooltip
                .showAsError()
                .updateContent({ text: this.options.drawError.message });

            // Update shape
            this._updateGuideColor(this.options.drawError.color);
            this._poly.setStyle({ color: this.options.drawError.color });

            // Hide the error after 2 seconds
            this._clearHideErrorTimeout();
            this._hideErrorTimeout = setTimeout(L.Util.bind(this._hideErrorTooltip, this), this.options.drawError.timeout);
        },

        _hideErrorTooltip: function () {
            this._errorShown = false;

            this._clearHideErrorTimeout();

            // Revert tooltip
            this._tooltip
                .removeError()
                .updateContent(this._getTooltipText());

            // Revert shape
            this._updateGuideColor(this.options.shapeOptions.color);
            this._poly.setStyle({ color: this.options.shapeOptions.color });
        },

        _clearHideErrorTimeout: function () {
            if (this._hideErrorTimeout) {
                clearTimeout(this._hideErrorTimeout);
                this._hideErrorTimeout = null;
            }
        },

        _vertexAdded: function (latlng) {
            if (this._markers.length === 1) {
                this._measurementRunningTotal = 0;
            }
            else {
                this._measurementRunningTotal +=
                    latlng.distanceTo(this._markers[this._markers.length - 2].getLatLng());
            }
        },

        _cleanUpShape: function () {
            if (this._markers.length > 1) {
                this._markers[this._markers.length - 1].off('click', this._finishShape, this);
            }
        },

        _fireCreatedEvent: function () {
            var poly = new this.Poly(this._poly.getLatLngs(), this.options.shapeOptions);
            L.Draw.Feature.prototype._fireCreatedEvent.call(this, poly);
        }
    });


    L.Draw.Polygon = L.Draw.Polyline.extend({
        statics: {
            TYPE: 'polygon'
        },

        Poly: L.Polygon,

        options: {
            showArea: false,
            shapeOptions: {
                stroke: true,
                color: '#f06eaa',
                weight: 4,
                opacity: 0.5,
                fill: true,
                fillColor: null, //same as color by default
                fillOpacity: 0.2,
                clickable: true
            }
        },

        initialize: function (map, options) {
            L.Draw.Polyline.prototype.initialize.call(this, map, options);

            // Save the type so super can fire, need to do this as cannot do this.TYPE :(
            this.type = L.Draw.Polygon.TYPE;
        },

        _updateFinishHandler: function () {
            var markerCount = this._markers.length;

            // The first marker should have a click handler to close the polygon
            if (markerCount === 1) {
                this._markers[0].on('click', this._finishShape, this);
            }

            // Add and update the double click handler
            if (markerCount > 2) {
                this._markers[markerCount - 1].on('dblclick', this._finishShape, this);
                // Only need to remove handler if has been added before
                if (markerCount > 3) {
                    this._markers[markerCount - 2].off('dblclick', this._finishShape, this);
                }
            }
        },

        _getTooltipText: function () {
            var text, subtext;

            if (this._markers.length === 0) {
                text = L.drawLocal.draw.handlers.polygon.tooltip.start;
            } else if (this._markers.length < 3) {
                text = L.drawLocal.draw.handlers.polygon.tooltip.cont;
            } else {
                text = L.drawLocal.draw.handlers.polygon.tooltip.end;
                subtext = this._getMeasurementString();
            }

            return {
                text: text,
                subtext: subtext
            };
        },

        _getMeasurementString: function () {
            var area = this._area;

            if (!area) {
                return null;
            }

            return L.GeometryUtil.readableArea(area, this.options.metric);
        },

        _shapeIsValid: function () {
            return this._markers.length >= 3;
        },

        _vertexAdded: function () {
            // Check to see if we should show the area
            if (this.options.allowIntersection || !this.options.showArea) {
                return;
            }

            var latLngs = this._poly.getLatLngs();

            this._area = L.GeometryUtil.geodesicArea(latLngs);
        },

        _cleanUpShape: function () {
            var markerCount = this._markers.length;

            if (markerCount > 0) {
                this._markers[0].off('click', this._finishShape, this);

                if (markerCount > 2) {
                    this._markers[markerCount - 1].off('dblclick', this._finishShape, this);
                }
            }
        }
    });


    L.SimpleShape = {};

    L.Draw.SimpleShape = L.Draw.Feature.extend({
        options: {
            repeatMode: false
        },

        initialize: function (map, options) {
            this._endLabelText = L.drawLocal.draw.handlers.simpleshape.tooltip.end;

            L.Draw.Feature.prototype.initialize.call(this, map, options);
        },

        addHooks: function () {
            L.Draw.Feature.prototype.addHooks.call(this);
            if (this._map) {
                this._map.dragging.disable();
                //TODO refactor: move cursor to styles
                this._container.style.cursor = 'crosshair';

                this._tooltip.updateContent({ text: this._initialLabelText });

                this._map
                    .on('mousedown', this._onMouseDown, this)
                    .on('mousemove', this._onMouseMove, this);
            }
        },

        removeHooks: function () {
            L.Draw.Feature.prototype.removeHooks.call(this);
            if (this._map) {
                this._map.dragging.enable();
                //TODO refactor: move cursor to styles
                this._container.style.cursor = '';

                this._map
                    .off('mousedown', this._onMouseDown, this)
                    .off('mousemove', this._onMouseMove, this);

                L.DomEvent.off(document, 'mouseup', this._onMouseUp);

                // If the box element doesn't exist they must not have moved the mouse, so don't need to destroy/return
                if (this._shape) {
                    this._map.removeLayer(this._shape);
                    delete this._shape;
                }
            }
            this._isDrawing = false;
        },

        _onMouseDown: function (e) {
            this._isDrawing = true;
            this._startLatLng = e.latlng;

            L.DomEvent
                .on(document, 'mouseup', this._onMouseUp, this)
                .preventDefault(e.originalEvent);
        },

        _onMouseMove: function (e) {
            var latlng = e.latlng;

            this._tooltip.updatePosition(latlng);
            if (this._isDrawing) {
                this._tooltip.updateContent({ text: this._endLabelText });
                this._drawShape(latlng);
            }
        },

        _onMouseUp: function () {
            if (this._shape) {
                this._fireCreatedEvent();
            }

            this.disable();
            if (this.options.repeatMode) {
                this.enable();
            }
        }
    });

    L.Draw.Rectangle = L.Draw.SimpleShape.extend({
        statics: {
            TYPE: 'rectangle'
        },

        options: {
            shapeOptions: {
                stroke: true,
                color: '#f06eaa',
                weight: 4,
                opacity: 0.5,
                fill: true,
                fillColor: null, //same as color by default
                fillOpacity: 0.2,
                clickable: true
            }
        },

        initialize: function (map, options) {
            // Save the type so super can fire, need to do this as cannot do this.TYPE :(
            this.type = L.Draw.Rectangle.TYPE;

            this._initialLabelText = L.drawLocal.draw.handlers.rectangle.tooltip.start;

            L.Draw.SimpleShape.prototype.initialize.call(this, map, options);
        },

        _drawShape: function (latlng) {
            if (!this._shape) {
                this._shape = new L.Rectangle(new L.LatLngBounds(this._startLatLng, latlng), this.options.shapeOptions);
                this._map.addLayer(this._shape);
            } else {
                this._shape.setBounds(new L.LatLngBounds(this._startLatLng, latlng));
            }
        },

        _fireCreatedEvent: function () {
            var rectangle = new L.Rectangle(this._shape.getBounds(), this.options.shapeOptions);
            L.Draw.SimpleShape.prototype._fireCreatedEvent.call(this, rectangle);
        }
    });


    L.Draw.Circle = L.Draw.SimpleShape.extend({
        statics: {
            TYPE: 'circle'
        },

        options: {
            shapeOptions: {
                stroke: true,
                color: '#f06eaa',
                weight: 4,
                opacity: 0.5,
                fill: true,
                fillColor: null, //same as color by default
                fillOpacity: 0.2,
                clickable: true
            },
            showRadius: true,
            metric: true // Whether to use the metric meaurement system or imperial
        },

        initialize: function (map, options) {
            // Save the type so super can fire, need to do this as cannot do this.TYPE :(
            this.type = L.Draw.Circle.TYPE;

            this._initialLabelText = L.drawLocal.draw.handlers.circle.tooltip.start;

            L.Draw.SimpleShape.prototype.initialize.call(this, map, options);
        },

        _drawShape: function (latlng) {
            if (!this._shape) {
                this._shape = new L.Circle(this._startLatLng, this._startLatLng.distanceTo(latlng), this.options.shapeOptions);
                this._map.addLayer(this._shape);
            } else {
                this._shape.setRadius(this._startLatLng.distanceTo(latlng));
            }
        },

        _fireCreatedEvent: function () {
            var circle = new L.Circle(this._startLatLng, this._shape.getRadius(), this.options.shapeOptions);
            L.Draw.SimpleShape.prototype._fireCreatedEvent.call(this, circle);
        },

        _onMouseMove: function (e) {
            var latlng = e.latlng,
                showRadius = this.options.showRadius,
                useMetric = this.options.metric,
                radius;

            this._tooltip.updatePosition(latlng);
            if (this._isDrawing) {
                this._drawShape(latlng);

                // Get the new radius (rounded to 1 dp)
                radius = this._shape.getRadius().toFixed(1);

                this._tooltip.updateContent({
                    text: this._endLabelText,
                    subtext: showRadius ? 'Radius: ' + L.GeometryUtil.readableDistance(radius, useMetric) : ''
                });
            }
        }
    });


    L.Draw.Marker = L.Draw.Feature.extend({
        statics: {
            TYPE: 'marker'
        },

        options: {
            icon: new L.Icon.Default(),
            repeatMode: false,
            zIndexOffset: 2000 // This should be > than the highest z-index any markers
        },

        initialize: function (map, options) {
            // Save the type so super can fire, need to do this as cannot do this.TYPE :(
            this.type = L.Draw.Marker.TYPE;

            L.Draw.Feature.prototype.initialize.call(this, map, options);
        },

        addHooks: function () {
            L.Draw.Feature.prototype.addHooks.call(this);

            if (this._map) {
                this._tooltip.updateContent({ text: L.drawLocal.draw.handlers.marker.tooltip.start });

                // Same mouseMarker as in Draw.Polyline
                if (!this._mouseMarker) {
                    this._mouseMarker = L.marker(this._map.getCenter(), {
                        icon: L.divIcon({
                            className: 'leaflet-mouse-marker',
                            iconAnchor: [20, 20],
                            iconSize: [40, 40]
                        }),
                        opacity: 0,
                        zIndexOffset: this.options.zIndexOffset
                    });
                }

                this._mouseMarker
                    .on('click', this._onClick, this)
                    .addTo(this._map);

                this._map.on('mousemove', this._onMouseMove, this);
            }
        },

        removeHooks: function () {
            L.Draw.Feature.prototype.removeHooks.call(this);

            if (this._map) {
                if (this._marker) {
                    this._marker.off('click', this._onClick, this);
                    this._map
                        .off('click', this._onClick, this)
                        .removeLayer(this._marker);
                    delete this._marker;
                }

                this._mouseMarker.off('click', this._onClick, this);
                this._map.removeLayer(this._mouseMarker);
                delete this._mouseMarker;

                this._map.off('mousemove', this._onMouseMove, this);
            }
        },

        _onMouseMove: function (e) {
            var latlng = e.latlng;

            this._tooltip.updatePosition(latlng);
            this._mouseMarker.setLatLng(latlng);

            if (!this._marker) {
                this._marker = new L.Marker(latlng, {
                    icon: this.options.icon,
                    zIndexOffset: this.options.zIndexOffset
                });
                // Bind to both marker and map to make sure we get the click event.
                this._marker.on('click', this._onClick, this);
                this._map
                    .on('click', this._onClick, this)
                    .addLayer(this._marker);
            }
            else {
                latlng = this._mouseMarker.getLatLng();
                this._marker.setLatLng(latlng);
            }
        },

        _onClick: function () {
            this._fireCreatedEvent();

            this.disable();
            if (this.options.repeatMode) {
                this.enable();
            }
        },

        _fireCreatedEvent: function () {
            var marker = new L.Marker(this._marker.getLatLng(), { icon: this.options.icon });
            L.Draw.Feature.prototype._fireCreatedEvent.call(this, marker);
        }
    });


    L.Edit = L.Edit || {};

    /*
     * L.Edit.Poly is an editing handler for polylines and polygons.
     */

    L.Edit.Poly = L.Handler.extend({
        options: {
            icon: new L.DivIcon({
                iconSize: new L.Point(8, 8),
                className: 'leaflet-div-icon leaflet-editing-icon'
            })
        },

        initialize: function (poly, options) {
            this._poly = poly;
            L.setOptions(this, options);
        },

        addHooks: function () {
            if (this._poly._map) {
                if (!this._markerGroup) {
                    this._initMarkers();
                }
                this._poly._map.addLayer(this._markerGroup);
            }
        },

        removeHooks: function () {
            if (this._poly._map) {
                this._poly._map.removeLayer(this._markerGroup);
                delete this._markerGroup;
                delete this._markers;
            }
        },

        updateMarkers: function () {
            this._markerGroup.clearLayers();
            this._initMarkers();
        },

        _initMarkers: function () {
            if (!this._markerGroup) {
                this._markerGroup = new L.LayerGroup();
            }
            this._markers = [];

            var latlngs = this._poly._latlngs,
                i, j, len, marker;

            // TODO refactor holes implementation in Polygon to support it here

            for (i = 0, len = latlngs.length; i < len; i++) {

                marker = this._createMarker(latlngs[i], i);
                marker.on('click', this._onMarkerClick, this);
                this._markers.push(marker);
            }

            var markerLeft, markerRight;

            for (i = 0, j = len - 1; i < len; j = i++) {
                if (i === 0 && !(L.Polygon && (this._poly instanceof L.Polygon))) {
                    continue;
                }

                markerLeft = this._markers[j];
                markerRight = this._markers[i];

                this._createMiddleMarker(markerLeft, markerRight);
                this._updatePrevNext(markerLeft, markerRight);
            }
        },

        _createMarker: function (latlng, index) {
            var marker = new L.Marker(latlng, {
                draggable: true,
                icon: this.options.icon
            });

            marker._origLatLng = latlng;
            marker._index = index;

            marker.on('drag', this._onMarkerDrag, this);
            marker.on('dragend', this._fireEdit, this);

            this._markerGroup.addLayer(marker);

            return marker;
        },

        _removeMarker: function (marker) {
            var i = marker._index;

            this._markerGroup.removeLayer(marker);
            this._markers.splice(i, 1);
            this._poly.spliceLatLngs(i, 1);
            this._updateIndexes(i, -1);

            marker
                .off('drag', this._onMarkerDrag, this)
                .off('dragend', this._fireEdit, this)
                .off('click', this._onMarkerClick, this);
        },

        _fireEdit: function () {
            this._poly.edited = true;
            this._poly.fire('edit');
        },

        _onMarkerDrag: function (e) {
            var marker = e.target;

            L.extend(marker._origLatLng, marker._latlng);

            if (marker._middleLeft) {
                marker._middleLeft.setLatLng(this._getMiddleLatLng(marker._prev, marker));
            }
            if (marker._middleRight) {
                marker._middleRight.setLatLng(this._getMiddleLatLng(marker, marker._next));
            }

            this._poly.redraw();
        },

        _onMarkerClick: function (e) {
            var minPoints = L.Polygon && (this._poly instanceof L.Polygon) ? 4 : 3,
                marker = e.target;

            // If removing this point would create an invalid polyline/polygon don't remove
            if (this._poly._latlngs.length < minPoints) {
                return;
            }

            // remove the marker
            this._removeMarker(marker);

            // update prev/next links of adjacent markers
            this._updatePrevNext(marker._prev, marker._next);

            // remove ghost markers near the removed marker
            if (marker._middleLeft) {
                this._markerGroup.removeLayer(marker._middleLeft);
            }
            if (marker._middleRight) {
                this._markerGroup.removeLayer(marker._middleRight);
            }

            // create a ghost marker in place of the removed one
            if (marker._prev && marker._next) {
                this._createMiddleMarker(marker._prev, marker._next);

            } else if (!marker._prev) {
                marker._next._middleLeft = null;

            } else if (!marker._next) {
                marker._prev._middleRight = null;
            }

            this._fireEdit();
        },

        _updateIndexes: function (index, delta) {
            this._markerGroup.eachLayer(function (marker) {
                if (marker._index > index) {
                    marker._index += delta;
                }
            });
        },

        _createMiddleMarker: function (marker1, marker2) {
            var latlng = this._getMiddleLatLng(marker1, marker2),
                marker = this._createMarker(latlng),
                onClick,
                onDragStart,
                onDragEnd;

            marker.setOpacity(0.6);

            marker1._middleRight = marker2._middleLeft = marker;

            onDragStart = function () {
                var i = marker2._index;

                marker._index = i;

                marker
                    .off('click', onClick, this)
                    .on('click', this._onMarkerClick, this);

                latlng.lat = marker.getLatLng().lat;
                latlng.lng = marker.getLatLng().lng;
                this._poly.spliceLatLngs(i, 0, latlng);
                this._markers.splice(i, 0, marker);

                marker.setOpacity(1);

                this._updateIndexes(i, 1);
                marker2._index++;
                this._updatePrevNext(marker1, marker);
                this._updatePrevNext(marker, marker2);
            };

            onDragEnd = function () {
                marker.off('dragstart', onDragStart, this);
                marker.off('dragend', onDragEnd, this);

                this._createMiddleMarker(marker1, marker);
                this._createMiddleMarker(marker, marker2);
            };

            onClick = function () {
                onDragStart.call(this);
                onDragEnd.call(this);
                this._fireEdit();
            };

            marker
                .on('click', onClick, this)
                .on('dragstart', onDragStart, this)
                .on('dragend', onDragEnd, this);

            this._markerGroup.addLayer(marker);
        },

        _updatePrevNext: function (marker1, marker2) {
            if (marker1) {
                marker1._next = marker2;
            }
            if (marker2) {
                marker2._prev = marker1;
            }
        },

        _getMiddleLatLng: function (marker1, marker2) {
            var map = this._poly._map,
                p1 = map.project(marker1.getLatLng()),
                p2 = map.project(marker2.getLatLng());

            return map.unproject(p1._add(p2)._divideBy(2));
        }
    });

    L.Polyline.addInitHook(function () {

        // Check to see if handler has already been initialized. This is to support versions of Leaflet that still have L.Handler.PolyEdit
        if (this.editing) {
            return;
        }

        if (L.Edit.Poly) {
            this.editing = new L.Edit.Poly(this);

            if (this.options.editable) {
                this.editing.enable();
            }
        }

        this.on('add', function () {
            if (this.editing && this.editing.enabled()) {
                this.editing.addHooks();
            }
        });

        this.on('remove', function () {
            if (this.editing && this.editing.enabled()) {
                this.editing.removeHooks();
            }
        });
    });


    L.Edit = L.Edit || {};

    L.Edit.SimpleShape = L.Handler.extend({
        options: {
            moveIcon: new L.DivIcon({
                iconSize: new L.Point(8, 8),
                className: 'leaflet-div-icon leaflet-editing-icon leaflet-edit-move'
            }),
            resizeIcon: new L.DivIcon({
                iconSize: new L.Point(8, 8),
                className: 'leaflet-div-icon leaflet-editing-icon leaflet-edit-resize'
            })
        },

        initialize: function (shape, options) {
            this._shape = shape;
            L.Util.setOptions(this, options);
        },

        addHooks: function () {
            if (this._shape._map) {
                this._map = this._shape._map;

                if (!this._markerGroup) {
                    this._initMarkers();
                }
                this._map.addLayer(this._markerGroup);
            }
        },

        removeHooks: function () {
            if (this._shape._map) {
                this._unbindMarker(this._moveMarker);

                for (var i = 0, l = this._resizeMarkers.length; i < l; i++) {
                    this._unbindMarker(this._resizeMarkers[i]);
                }
                this._resizeMarkers = null;

                this._map.removeLayer(this._markerGroup);
                delete this._markerGroup;
            }

            this._map = null;
        },

        updateMarkers: function () {
            this._markerGroup.clearLayers();
            this._initMarkers();
        },

        _initMarkers: function () {
            if (!this._markerGroup) {
                this._markerGroup = new L.LayerGroup();
            }

            // Create center marker
            this._createMoveMarker();

            // Create edge marker
            this._createResizeMarker();
        },

        _createMoveMarker: function () {
            // Children override
        },

        _createResizeMarker: function () {
            // Children override
        },

        _createMarker: function (latlng, icon) {
            var marker = new L.Marker(latlng, {
                draggable: true,
                icon: icon,
                zIndexOffset: 10
            });

            this._bindMarker(marker);

            this._markerGroup.addLayer(marker);

            return marker;
        },

        _bindMarker: function (marker) {
            marker
                .on('dragstart', this._onMarkerDragStart, this)
                .on('drag', this._onMarkerDrag, this)
                .on('dragend', this._onMarkerDragEnd, this);
        },

        _unbindMarker: function (marker) {
            marker
                .off('dragstart', this._onMarkerDragStart, this)
                .off('drag', this._onMarkerDrag, this)
                .off('dragend', this._onMarkerDragEnd, this);
        },

        _onMarkerDragStart: function (e) {
            var marker = e.target;
            marker.setOpacity(0);
        },

        _fireEdit: function () {
            this._shape.edited = true;
            this._shape.fire('edit');
        },

        _onMarkerDrag: function (e) {
            var marker = e.target,
                latlng = marker.getLatLng();

            if (marker === this._moveMarker) {
                this._move(latlng);
            } else {
                this._resize(latlng);
            }

            this._shape.redraw();
        },

        _onMarkerDragEnd: function (e) {
            var marker = e.target;
            marker.setOpacity(1);

            this._fireEdit();
        },

        _move: function () {
            // Children override
        },

        _resize: function () {
            // Children override
        }
    });


    L.Edit = L.Edit || {};

    L.Edit.Rectangle = L.Edit.SimpleShape.extend({
        _createMoveMarker: function () {
            var bounds = this._shape.getBounds(),
                center = bounds.getCenter();

            this._moveMarker = this._createMarker(center, this.options.moveIcon);
        },

        _createResizeMarker: function () {
            var corners = this._getCorners();

            this._resizeMarkers = [];

            for (var i = 0, l = corners.length; i < l; i++) {
                this._resizeMarkers.push(this._createMarker(corners[i], this.options.resizeIcon));
                // Monkey in the corner index as we will need to know this for dragging
                this._resizeMarkers[i]._cornerIndex = i;
            }
        },

        _onMarkerDragStart: function (e) {
            L.Edit.SimpleShape.prototype._onMarkerDragStart.call(this, e);

            // Save a reference to the opposite point
            var corners = this._getCorners(),
                marker = e.target,
                currentCornerIndex = marker._cornerIndex;

            this._oppositeCorner = corners[(currentCornerIndex + 2) % 4];

            this._toggleCornerMarkers(0, currentCornerIndex);
        },

        _onMarkerDragEnd: function (e) {
            var marker = e.target,
                bounds, center;

            // Reset move marker position to the center
            if (marker === this._moveMarker) {
                bounds = this._shape.getBounds();
                center = bounds.getCenter();

                marker.setLatLng(center);
            }

            this._toggleCornerMarkers(1);

            this._repositionCornerMarkers();

            L.Edit.SimpleShape.prototype._onMarkerDragEnd.call(this, e);
        },

        _move: function (newCenter) {
            var latlngs = this._shape.getLatLngs(),
                bounds = this._shape.getBounds(),
                center = bounds.getCenter(),
                offset, newLatLngs = [];

            // Offset the latlngs to the new center
            for (var i = 0, l = latlngs.length; i < l; i++) {
                offset = [latlngs[i].lat - center.lat, latlngs[i].lng - center.lng];
                newLatLngs.push([newCenter.lat + offset[0], newCenter.lng + offset[1]]);
            }

            this._shape.setLatLngs(newLatLngs);

            // Reposition the resize markers
            this._repositionCornerMarkers();
        },

        _resize: function (latlng) {
            var bounds;

            // Update the shape based on the current position of this corner and the opposite point
            this._shape.setBounds(L.latLngBounds(latlng, this._oppositeCorner));

            // Reposition the move marker
            bounds = this._shape.getBounds();
            this._moveMarker.setLatLng(bounds.getCenter());
        },

        _getCorners: function () {
            var bounds = this._shape.getBounds(),
                nw = bounds.getNorthWest(),
                ne = bounds.getNorthEast(),
                se = bounds.getSouthEast(),
                sw = bounds.getSouthWest();

            return [nw, ne, se, sw];
        },

        _toggleCornerMarkers: function (opacity) {
            for (var i = 0, l = this._resizeMarkers.length; i < l; i++) {
                this._resizeMarkers[i].setOpacity(opacity);
            }
        },

        _repositionCornerMarkers: function () {
            var corners = this._getCorners();

            for (var i = 0, l = this._resizeMarkers.length; i < l; i++) {
                this._resizeMarkers[i].setLatLng(corners[i]);
            }
        }
    });

    L.Rectangle.addInitHook(function () {
        if (L.Edit.Rectangle) {
            this.editing = new L.Edit.Rectangle(this);

            if (this.options.editable) {
                this.editing.enable();
            }
        }
    });


    L.Edit = L.Edit || {};

    L.Edit.Circle = L.Edit.SimpleShape.extend({
        _createMoveMarker: function () {
            var center = this._shape.getLatLng();

            this._moveMarker = this._createMarker(center, this.options.moveIcon);
        },

        _createResizeMarker: function () {
            var center = this._shape.getLatLng(),
                resizemarkerPoint = this._getResizeMarkerPoint(center);

            this._resizeMarkers = [];
            this._resizeMarkers.push(this._createMarker(resizemarkerPoint, this.options.resizeIcon));
        },

        _getResizeMarkerPoint: function (latlng) {
            // From L.shape.getBounds()
            var delta = this._shape._radius * Math.cos(Math.PI / 4),
                point = this._map.project(latlng);
            return this._map.unproject([point.x + delta, point.y - delta]);
        },

        _move: function (latlng) {
            var resizemarkerPoint = this._getResizeMarkerPoint(latlng);

            // Move the resize marker
            this._resizeMarkers[0].setLatLng(resizemarkerPoint);

            // Move the circle
            this._shape.setLatLng(latlng);
        },

        _resize: function (latlng) {
            var moveLatLng = this._moveMarker.getLatLng(),
                radius = moveLatLng.distanceTo(latlng);

            this._shape.setRadius(radius);
        }
    });

    L.Circle.addInitHook(function () {
        if (L.Edit.Circle) {
            this.editing = new L.Edit.Circle(this);

            if (this.options.editable) {
                this.editing.enable();
            }
        }

        this.on('add', function () {
            if (this.editing && this.editing.enabled()) {
                this.editing.addHooks();
            }
        });

        this.on('remove', function () {
            if (this.editing && this.editing.enabled()) {
                this.editing.removeHooks();
            }
        });
    });

    /*
     * L.LatLngUtil contains different utility functions for LatLngs.
     */

    L.LatLngUtil = {
        // Clones a LatLngs[], returns [][]
        cloneLatLngs: function (latlngs) {
            var clone = [];
            for (var i = 0, l = latlngs.length; i < l; i++) {
                clone.push(this.cloneLatLng(latlngs[i]));
            }
            return clone;
        },

        cloneLatLng: function (latlng) {
            return L.latLng(latlng.lat, latlng.lng);
        }
    };

    L.GeometryUtil = L.extend(L.GeometryUtil || {}, {
        // Ported from the OpenLayers implementation. See https://github.com/openlayers/openlayers/blob/master/lib/OpenLayers/Geometry/LinearRing.js#L270
        geodesicArea: function (latLngs) {
            var pointsCount = latLngs.length,
                area = 0.0,
                d2r = L.LatLng.DEG_TO_RAD,
                p1, p2;

            if (pointsCount > 2) {
                for (var i = 0; i < pointsCount; i++) {
                    p1 = latLngs[i];
                    p2 = latLngs[(i + 1) % pointsCount];
                    area += ((p2.lng - p1.lng) * d2r) *
                        (2 + Math.sin(p1.lat * d2r) + Math.sin(p2.lat * d2r));
                }
                area = area * 6378137.0 * 6378137.0 / 2.0;
            }

            return Math.abs(area);
        },

        readableArea: function (area, isMetric) {
            var areaStr;

            if (isMetric) {
                if (area >= 10000) {
                    areaStr = (area * 0.0001).toFixed(2) + ' ha';
                } else {
                    areaStr = area.toFixed(2) + ' m&sup2;';
                }
            } else {
                area *= 0.836127; // Square yards in 1 meter

                if (area >= 3097600) { //3097600 square yards in 1 square mile
                    areaStr = (area / 3097600).toFixed(2) + ' mi&sup2;';
                } else if (area >= 4840) {//48040 square yards in 1 acre
                    areaStr = (area / 4840).toFixed(2) + ' acres';
                } else {
                    areaStr = Math.ceil(area) + ' yd&sup2;';
                }
            }

            return areaStr;
        },

        readableDistance: function (distance, isMetric) {
            var distanceStr;

            if (isMetric) {
                // show metres when distance is < 1km, then show km
                if (distance > 1000) {
                    distanceStr = (distance  / 1000).toFixed(2) + ' km';
                } else {
                    distanceStr = Math.ceil(distance) + ' m';
                }
            } else {
                distance *= 1.09361;

                if (distance > 1760) {
                    distanceStr = (distance / 1760).toFixed(2) + ' miles';
                } else {
                    distanceStr = Math.ceil(distance) + ' yd';
                }
            }

            return distanceStr;
        }
    });

    L.Util.extend(L.LineUtil, {
        // Checks to see if two line segments intersect. Does not handle degenerate cases.
        // http://compgeom.cs.uiuc.edu/~jeffe/teaching/373/notes/x06-sweepline.pdf
        segmentsIntersect: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2, /*Point*/ p3) {
            return	this._checkCounterclockwise(p, p2, p3) !==
                this._checkCounterclockwise(p1, p2, p3) &&
                this._checkCounterclockwise(p, p1, p2) !==
                    this._checkCounterclockwise(p, p1, p3);
        },

        // check to see if points are in counterclockwise order
        _checkCounterclockwise: function (/*Point*/ p, /*Point*/ p1, /*Point*/ p2) {
            return (p2.y - p.y) * (p1.x - p.x) > (p1.y - p.y) * (p2.x - p.x);
        }
    });

    L.Polyline.include({
        // Check to see if this polyline has any linesegments that intersect.
        // NOTE: does not support detecting intersection for degenerate cases.
        intersects: function () {
            var points = this._originalPoints,
                len = points ? points.length : 0,
                i, p, p1;

            if (this._tooFewPointsForIntersection()) {
                return false;
            }

            for (i = len - 1; i >= 3; i--) {
                p = points[i - 1];
                p1 = points[i];


                if (this._lineSegmentsIntersectsRange(p, p1, i - 2)) {
                    return true;
                }
            }

            return false;
        },

        // Check for intersection if new latlng was added to this polyline.
        // NOTE: does not support detecting intersection for degenerate cases.
        newLatLngIntersects: function (latlng, skipFirst) {
            // Cannot check a polyline for intersecting lats/lngs when not added to the map
            if (!this._map) {
                return false;
            }

            return this.newPointIntersects(this._map.latLngToLayerPoint(latlng), skipFirst);
        },

        // Check for intersection if new point was added to this polyline.
        // newPoint must be a layer point.
        // NOTE: does not support detecting intersection for degenerate cases.
        newPointIntersects: function (newPoint, skipFirst) {
            var points = this._originalPoints,
                len = points ? points.length : 0,
                lastPoint = points ? points[len - 1] : null,
            // The previous previous line segment. Previous line segment doesn't need testing.
                maxIndex = len - 2;

            if (this._tooFewPointsForIntersection(1)) {
                return false;
            }

            return this._lineSegmentsIntersectsRange(lastPoint, newPoint, maxIndex, skipFirst ? 1 : 0);
        },

        // Polylines with 2 sides can only intersect in cases where points are collinear (we don't support detecting these).
        // Cannot have intersection when < 3 line segments (< 4 points)
        _tooFewPointsForIntersection: function (extraPoints) {
            var points = this._originalPoints,
                len = points ? points.length : 0;
            // Increment length by extraPoints if present
            len += extraPoints || 0;

            return !this._originalPoints || len <= 3;
        },

        // Checks a line segment intersections with any line segments before its predecessor.
        // Don't need to check the predecessor as will never intersect.
        _lineSegmentsIntersectsRange: function (p, p1, maxIndex, minIndex) {
            var points = this._originalPoints,
                p2, p3;

            minIndex = minIndex || 0;

            // Check all previous line segments (beside the immediately previous) for intersections
            for (var j = maxIndex; j > minIndex; j--) {
                p2 = points[j - 1];
                p3 = points[j];

                if (L.LineUtil.segmentsIntersect(p, p1, p2, p3)) {
                    return true;
                }
            }

            return false;
        }
    });


    L.Polygon.include({
        // Checks a polygon for any intersecting line segments. Ignores holes.
        intersects: function () {
            var polylineIntersects,
                points = this._originalPoints,
                len, firstPoint, lastPoint, maxIndex;

            if (this._tooFewPointsForIntersection()) {
                return false;
            }

            polylineIntersects = L.Polyline.prototype.intersects.call(this);

            // If already found an intersection don't need to check for any more.
            if (polylineIntersects) {
                return true;
            }

            len = points.length;
            firstPoint = points[0];
            lastPoint = points[len - 1];
            maxIndex = len - 2;

            // Check the line segment between last and first point. Don't need to check the first line segment (minIndex = 1)
            return this._lineSegmentsIntersectsRange(lastPoint, firstPoint, maxIndex, 1);
        }
    });

    L.Control.Draw = L.Control.extend({

        options: {
            position: 'topleft',
            draw: {},
            edit: false
        },

        initialize: function (options) {
            if (L.version < '0.7') {
                throw new Error('Leaflet.draw 0.2.3+ requires Leaflet 0.7.0+. Download latest from https://github.com/Leaflet/Leaflet/');
            }

            L.Control.prototype.initialize.call(this, options);

            var id, toolbar;

            this._toolbars = {};

            // Initialize toolbars
            if (L.DrawToolbar && this.options.draw) {
                toolbar = new L.DrawToolbar(this.options.draw);
                id = L.stamp(toolbar);
                this._toolbars[id] = toolbar;

                // Listen for when toolbar is enabled
                this._toolbars[id].on('enable', this._toolbarEnabled, this);
            }

            if (L.EditToolbar && this.options.edit) {
                toolbar = new L.EditToolbar(this.options.edit);
                id = L.stamp(toolbar);
                this._toolbars[id] = toolbar;

                // Listen for when toolbar is enabled
                this._toolbars[id].on('enable', this._toolbarEnabled, this);
            }
        },

        onAdd: function (map) {
            var container = L.DomUtil.create('div', 'leaflet-draw'),
                addedTopClass = false,
                topClassName = 'leaflet-draw-toolbar-top',
                toolbarContainer;

            for (var toolbarId in this._toolbars) {
                if (this._toolbars.hasOwnProperty(toolbarId)) {
                    toolbarContainer = this._toolbars[toolbarId].addToolbar(map);

                    // Add class to the first toolbar to remove the margin
                    if (!addedTopClass) {
                        if (!L.DomUtil.hasClass(toolbarContainer, topClassName)) {
                            L.DomUtil.addClass(toolbarContainer.childNodes[0], topClassName);
                        }
                        addedTopClass = true;
                    }

                    container.appendChild(toolbarContainer);
                }
            }

            return container;
        },

        onRemove: function () {
            for (var toolbarId in this._toolbars) {
                if (this._toolbars.hasOwnProperty(toolbarId)) {
                    this._toolbars[toolbarId].removeToolbar();
                }
            }
        },

        setDrawingOptions: function (options) {
            for (var toolbarId in this._toolbars) {
                if (this._toolbars[toolbarId] instanceof L.DrawToolbar) {
                    this._toolbars[toolbarId].setOptions(options);
                }
            }
        },

        _toolbarEnabled: function (e) {
            var id = '' + L.stamp(e.target);

            for (var toolbarId in this._toolbars) {
                if (this._toolbars.hasOwnProperty(toolbarId) && toolbarId !== id) {
                    this._toolbars[toolbarId].disable();
                }
            }
        }
    });

    L.Map.mergeOptions({
        drawControlTooltips: true,
        drawControl: false
    });

    L.Map.addInitHook(function () {
        if (this.options.drawControl) {
            this.drawControl = new L.Control.Draw();
            this.addControl(this.drawControl);
        }
    });

    L.Toolbar = L.Class.extend({
        includes: [L.Mixin.Events],

        initialize: function (options) {
            L.setOptions(this, options);

            this._modes = {};
            this._actionButtons = [];
            this._activeMode = null;
        },

        enabled: function () {
            return this._activeMode !== null;
        },

        disable: function () {
            if (!this.enabled()) { return; }

            this._activeMode.handler.disable();
        },

        removeToolbar: function () {
            // Dispose each handler
            for (var handlerId in this._modes) {
                if (this._modes.hasOwnProperty(handlerId)) {
                    // Unbind handler button
                    this._disposeButton(this._modes[handlerId].button, this._modes[handlerId].handler.enable);

                    // Make sure is disabled
                    this._modes[handlerId].handler.disable();

                    // Unbind handler
                    this._modes[handlerId].handler
                        .off('enabled', this._handlerActivated, this)
                        .off('disabled', this._handlerDeactivated, this);
                }
            }
            this._modes = {};

            // Dispose the actions toolbar
            for (var i = 0, l = this._actionButtons.length; i < l; i++) {
                this._disposeButton(this._actionButtons[i].button, this._actionButtons[i].callback);
            }
            this._actionButtons = [];
            this._actionsContainer = null;
        },

        _initModeHandler: function (handler, container, buttonIndex, classNamePredix, buttonTitle) {
            var type = handler.type;

            this._modes[type] = {};

            this._modes[type].handler = handler;

            this._modes[type].button = this._createButton({
                title: buttonTitle,
                className: classNamePredix + '-' + type,
                container: container,
                callback: this._modes[type].handler.enable,
                context: this._modes[type].handler
            });

            this._modes[type].buttonIndex = buttonIndex;

            this._modes[type].handler
                .on('enabled', this._handlerActivated, this)
                .on('disabled', this._handlerDeactivated, this);
        },

        _createButton: function (options) {
            var link = L.DomUtil.create('a', options.className || '', options.container);
            link.href = '#';

            if (options.text) {
                link.innerHTML = options.text;
            }

            if (options.title) {
                link.title = options.title;
            }

            L.DomEvent
                .on(link, 'click', L.DomEvent.stopPropagation)
                .on(link, 'mousedown', L.DomEvent.stopPropagation)
                .on(link, 'dblclick', L.DomEvent.stopPropagation)
                .on(link, 'click', L.DomEvent.preventDefault)
                .on(link, 'click', options.callback, options.context);

            return link;
        },

        _disposeButton: function (button, callback) {
            L.DomEvent
                .off(button, 'click', L.DomEvent.stopPropagation)
                .off(button, 'mousedown', L.DomEvent.stopPropagation)
                .off(button, 'dblclick', L.DomEvent.stopPropagation)
                .off(button, 'click', L.DomEvent.preventDefault)
                .off(button, 'click', callback);
        },

        _handlerActivated: function (e) {
            // Disable active mode (if present)
            if (this._activeMode && this._activeMode.handler.enabled()) {
                this._activeMode.handler.disable();
            }

            // Cache new active feature
            this._activeMode = this._modes[e.handler];

            L.DomUtil.addClass(this._activeMode.button, 'leaflet-draw-toolbar-button-enabled');

            this._showActionsToolbar();

            this.fire('enable');
        },

        _handlerDeactivated: function () {
            this._hideActionsToolbar();

            L.DomUtil.removeClass(this._activeMode.button, 'leaflet-draw-toolbar-button-enabled');

            this._activeMode = null;

            this.fire('disable');
        },

        _createActions: function (buttons) {
            var container = L.DomUtil.create('ul', 'leaflet-draw-actions'),
                l = buttons.length,
                li, button;

            for (var i = 0; i < l; i++) {
                li = L.DomUtil.create('li', '', container);

                button = this._createButton({
                    title: buttons[i].title,
                    text: buttons[i].text,
                    container: li,
                    callback: buttons[i].callback,
                    context: buttons[i].context
                });

                this._actionButtons.push({
                    button: button,
                    callback: buttons[i].callback
                });
            }

            return container;
        },

        _showActionsToolbar: function () {
            var buttonIndex = this._activeMode.buttonIndex,
                lastButtonIndex = this._lastButtonIndex,
                buttonHeight = 26, // TODO: this should be calculated
                borderHeight = 1, // TODO: this should also be calculated
                toolbarPosition = (buttonIndex * buttonHeight) + (buttonIndex * borderHeight) - 1;

            // Correctly position the cancel button
            this._actionsContainer.style.top = toolbarPosition + 'px';

            if (buttonIndex === 0) {
                L.DomUtil.addClass(this._toolbarContainer, 'leaflet-draw-toolbar-notop');
                L.DomUtil.addClass(this._actionsContainer, 'leaflet-draw-actions-top');
            }

            if (buttonIndex === lastButtonIndex) {
                L.DomUtil.addClass(this._toolbarContainer, 'leaflet-draw-toolbar-nobottom');
                L.DomUtil.addClass(this._actionsContainer, 'leaflet-draw-actions-bottom');
            }

            this._actionsContainer.style.display = 'block';
        },

        _hideActionsToolbar: function () {
            this._actionsContainer.style.display = 'none';

            L.DomUtil.removeClass(this._toolbarContainer, 'leaflet-draw-toolbar-notop');
            L.DomUtil.removeClass(this._toolbarContainer, 'leaflet-draw-toolbar-nobottom');
            L.DomUtil.removeClass(this._actionsContainer, 'leaflet-draw-actions-top');
            L.DomUtil.removeClass(this._actionsContainer, 'leaflet-draw-actions-bottom');
        }
    });

    L.Tooltip = L.Class.extend({
        initialize: function (map) {
            this._map = map;
            this._popupPane = map._panes.popupPane;

            this._container = map.options.drawControlTooltips ? L.DomUtil.create('div', 'leaflet-draw-tooltip', this._popupPane) : null;
            this._singleLineLabel = false;
        },

        dispose: function () {
            if (this._container) {
                this._popupPane.removeChild(this._container);
                this._container = null;
            }
        },

        updateContent: function (labelText) {
            if (!this._container) {
                return this;
            }
            labelText.subtext = labelText.subtext || '';

            // update the vertical position (only if changed)
            if (labelText.subtext.length === 0 && !this._singleLineLabel) {
                L.DomUtil.addClass(this._container, 'leaflet-draw-tooltip-single');
                this._singleLineLabel = true;
            }
            else if (labelText.subtext.length > 0 && this._singleLineLabel) {
                L.DomUtil.removeClass(this._container, 'leaflet-draw-tooltip-single');
                this._singleLineLabel = false;
            }

            this._container.innerHTML =
                (labelText.subtext.length > 0 ? '<span class="leaflet-draw-tooltip-subtext">' + labelText.subtext + '</span>' + '<br />' : '') +
                    '<span>' + labelText.text + '</span>';

            return this;
        },

        updatePosition: function (latlng) {
            var pos = this._map.latLngToLayerPoint(latlng),
                tooltipContainer = this._container;

            if (this._container) {
                tooltipContainer.style.visibility = 'inherit';
                L.DomUtil.setPosition(tooltipContainer, pos);
            }

            return this;
        },

        showAsError: function () {
            if (this._container) {
                L.DomUtil.addClass(this._container, 'leaflet-error-draw-tooltip');
            }
            return this;
        },

        removeError: function () {
            if (this._container) {
                L.DomUtil.removeClass(this._container, 'leaflet-error-draw-tooltip');
            }
            return this;
        }
    });

    L.DrawToolbar = L.Toolbar.extend({

        options: {
            polyline: {},
            polygon: {},
            rectangle: {},
            circle: {},
            marker1: {},
            marker2: {},
            marker2: {},
            marker3: {},
            marker4: {},
            marker5: {},
            marker6: {},
            marker7: {},
            marker8: {},
            marker9: {}
        },

        initialize: function (options) {
            // Ensure that the options are merged correctly since L.extend is only shallow
            for (var type in this.options) {
                if (this.options.hasOwnProperty(type)) {
                    if (options[type]) {
                        options[type] = L.extend({}, this.options[type], options[type]);
                    }
                }
            }

            L.Toolbar.prototype.initialize.call(this, options);
        },

        addToolbar: function (map) {
            var container = L.DomUtil.create('div', 'leaflet-draw-section'),
                buttonIndex = 0,
                buttonClassPrefix = 'leaflet-draw-draw';

            this._toolbarContainer = L.DomUtil.create('div', 'leaflet-draw-toolbar leaflet-bar');


            if (this.options.polyline) {
                this._initModeHandler(
                    new L.Draw.Polyline(map, this.options.polyline),
                    this._toolbarContainer,
                    buttonIndex++,
                    buttonClassPrefix,
                    L.drawLocal.draw.toolbar.buttons.polyline
                );
            }

            if (this.options.polygon) {
                this._initModeHandler(
                    new L.Draw.Polygon(map, this.options.polygon),
                    this._toolbarContainer,
                    buttonIndex++,
                    buttonClassPrefix,
                    L.drawLocal.draw.toolbar.buttons.polygon
                );
            }

            if (this.options.rectangle) {
                this._initModeHandler(
                    new L.Draw.Rectangle(map, this.options.rectangle),
                    this._toolbarContainer,
                    buttonIndex++,
                    buttonClassPrefix,
                    L.drawLocal.draw.toolbar.buttons.rectangle
                );
            }

            if (this.options.circle) {
                this._initModeHandler(
                    new L.Draw.Circle(map, this.options.circle),
                    this._toolbarContainer,
                    buttonIndex++,
                    buttonClassPrefix,
                    L.drawLocal.draw.toolbar.buttons.circle
                );
            }

            if (this.options.marker1) {
                this._initModeHandler(
                    new L.Draw.Marker(map, this.options.marker1),
                    this._toolbarContainer,
                    buttonIndex++,
                    buttonClassPrefix,
                    this.options.marker1.title
                );
            }

            if (this.options.marker2) {
                this._initModeHandler(
                    new L.Draw.Marker(map, this.options.marker2),
                    this._toolbarContainer,
                    buttonIndex++,
                    buttonClassPrefix,
                    this.options.marker2.title
                );
            }

            if (this.options.marker3) {
                this._initModeHandler(
                    new L.Draw.Marker(map, this.options.marker3),
                    this._toolbarContainer,
                    buttonIndex++,
                    buttonClassPrefix,
                    this.options.marker3.title
                );
            }

            if (this.options.marker4) {
                this._initModeHandler(
                    new L.Draw.Marker(map, this.options.marker4),
                    this._toolbarContainer,
                    buttonIndex++,
                    buttonClassPrefix,
                    this.options.marker4.title
                );
            }

            if (this.options.marker5) {
                this._initModeHandler(
                    new L.Draw.Marker(map, this.options.marker5),
                    this._toolbarContainer,
                    buttonIndex++,
                    buttonClassPrefix,
                    this.options.marker5.title
                );
            }

            if (this.options.marker6) {
                this._initModeHandler(
                    new L.Draw.Marker(map, this.options.marker6),
                    this._toolbarContainer,
                    buttonIndex++,
                    buttonClassPrefix,
                    this.options.marker6.title
                );
            }

            if (this.options.marker7) {
                this._initModeHandler(
                    new L.Draw.Marker(map, this.options.marker7),
                    this._toolbarContainer,
                    buttonIndex++,
                    buttonClassPrefix,
                    this.options.marker7.title
                );
            }

            if (this.options.marker8) {
                this._initModeHandler(
                    new L.Draw.Marker(map, this.options.marker8),
                    this._toolbarContainer,
                    buttonIndex++,
                    buttonClassPrefix,
                    this.options.marker8.title
                );
            }

            if (this.options.marker9) {
                this._initModeHandler(
                    new L.Draw.Marker(map, this.options.marker9),
                    this._toolbarContainer,
                    buttonIndex++,
                    buttonClassPrefix,
                    this.options.marker9.title
                );
            }

            // Save button index of the last button, -1 as we would have ++ after the last button
            this._lastButtonIndex = --buttonIndex;

            // Create the actions part of the toolbar
            this._actionsContainer = this._createActions([
                {
                    title: L.drawLocal.draw.toolbar.actions.title,
                    text: L.drawLocal.draw.toolbar.actions.text,
                    callback: this.disable,
                    context: this
                }
            ]);

            // Add draw and cancel containers to the control container
            container.appendChild(this._toolbarContainer);
            container.appendChild(this._actionsContainer);

            return container;
        },

        setOptions: function (options) {
            L.setOptions(this, options);

            for (var type in this._modes) {
                if (this._modes.hasOwnProperty(type) && options.hasOwnProperty(type)) {
                    this._modes[type].handler.setOptions(options[type]);
                }
            }
        }
    });

    /*L.Map.mergeOptions({
     editControl: true
     });*/

    L.EditToolbar = L.Toolbar.extend({
        options: {
            edit: {
                selectedPathOptions: {
                    color: '#fe57a1', /* Hot pink all the things! */
                    opacity: 0.6,
                    dashArray: '10, 10',

                    fill: true,
                    fillColor: '#fe57a1',
                    fillOpacity: 0.1
                }
            },
            remove: {},
            featureGroup: null /* REQUIRED! TODO: perhaps if not set then all layers on the map are selectable? */
        },

        initialize: function (options) {
            // Need to set this manually since null is an acceptable value here
            if (options.edit) {
                if (typeof options.edit.selectedPathOptions === 'undefined') {
                    options.edit.selectedPathOptions = this.options.edit.selectedPathOptions;
                }
                options.edit = L.extend({}, this.options.edit, options.edit);
            }

            if (options.remove) {
                options.remove = L.extend({}, this.options.remove, options.remove);
            }

            L.Toolbar.prototype.initialize.call(this, options);

            this._selectedFeatureCount = 0;
        },

        addToolbar: function (map) {
            var container = L.DomUtil.create('div', 'leaflet-draw-section'),
                buttonIndex = 0,
                buttonClassPrefix = 'leaflet-draw-edit',
                featureGroup = this.options.featureGroup;

            this._toolbarContainer = L.DomUtil.create('div', 'leaflet-draw-toolbar leaflet-bar');

            this._map = map;

            if (this.options.edit) {
                this._initModeHandler(
                    new L.EditToolbar.Edit(map, {
                        featureGroup: featureGroup,
                        selectedPathOptions: this.options.edit.selectedPathOptions
                    }),
                    this._toolbarContainer,
                    buttonIndex++,
                    buttonClassPrefix,
                    L.drawLocal.edit.toolbar.buttons.edit
                );
            }

            if (this.options.remove) {
                this._initModeHandler(
                    new L.EditToolbar.Delete(map, {
                        featureGroup: featureGroup
                    }),
                    this._toolbarContainer,
                    buttonIndex++,
                    buttonClassPrefix,
                    L.drawLocal.edit.toolbar.buttons.remove
                );
            }

            // Save button index of the last button, -1 as we would have ++ after the last button
            this._lastButtonIndex = --buttonIndex;

            // Create the actions part of the toolbar
            this._actionsContainer = this._createActions([
                {
                    title: L.drawLocal.edit.toolbar.actions.save.title,
                    text: L.drawLocal.edit.toolbar.actions.save.text,
                    callback: this._save,
                    context: this
                },
                {
                    title: L.drawLocal.edit.toolbar.actions.cancel.title,
                    text: L.drawLocal.edit.toolbar.actions.cancel.text,
                    callback: this.disable,
                    context: this
                }
            ]);

            // Add draw and cancel containers to the control container
            container.appendChild(this._toolbarContainer);
            container.appendChild(this._actionsContainer);

            this._checkDisabled();

            featureGroup.on('layeradd layerremove', this._checkDisabled, this);

            return container;
        },

        removeToolbar: function () {
            L.Toolbar.prototype.removeToolbar.call(this);

            this.options.featureGroup.off('layeradd layerremove', this._checkDisabled, this);
        },

        disable: function () {
            if (!this.enabled()) { return; }

            this._activeMode.handler.revertLayers();

            L.Toolbar.prototype.disable.call(this);
        },

        _save: function () {
            this._activeMode.handler.save();
            this._activeMode.handler.disable();
        },

        _checkDisabled: function () {
            var featureGroup = this.options.featureGroup,
                hasLayers = featureGroup.getLayers().length !== 0,
                button;

            if (this.options.edit) {
                button = this._modes[L.EditToolbar.Edit.TYPE].button;

                if (hasLayers) {
                    L.DomUtil.removeClass(button, 'leaflet-disabled');
                } else {
                    L.DomUtil.addClass(button, 'leaflet-disabled');
                }

                button.setAttribute(
                    'title',
                    hasLayers ?
                        L.drawLocal.edit.toolbar.buttons.edit
                        : L.drawLocal.edit.toolbar.buttons.editDisabled
                );
            }

            if (this.options.remove) {
                button = this._modes[L.EditToolbar.Delete.TYPE].button;

                if (hasLayers) {
                    L.DomUtil.removeClass(button, 'leaflet-disabled');
                } else {
                    L.DomUtil.addClass(button, 'leaflet-disabled');
                }

                button.setAttribute(
                    'title',
                    hasLayers ?
                        L.drawLocal.edit.toolbar.buttons.remove
                        : L.drawLocal.edit.toolbar.buttons.removeDisabled
                );
            }
        }
    });


    L.EditToolbar.Edit = L.Handler.extend({
        statics: {
            TYPE: 'edit'
        },

        includes: L.Mixin.Events,

        initialize: function (map, options) {
            L.Handler.prototype.initialize.call(this, map);

            // Set options to the default unless already set
            this._selectedPathOptions = options.selectedPathOptions;

            // Store the selectable layer group for ease of access
            this._featureGroup = options.featureGroup;

            if (!(this._featureGroup instanceof L.FeatureGroup)) {
                throw new Error('options.featureGroup must be a L.FeatureGroup');
            }

            this._uneditedLayerProps = {};

            // Save the type so super can fire, need to do this as cannot do this.TYPE :(
            this.type = L.EditToolbar.Edit.TYPE;
        },

        enable: function () {
            if (this._enabled || !this._hasAvailableLayers()) {
                return;
            }

            L.Handler.prototype.enable.call(this);

            this._featureGroup
                .on('layeradd', this._enableLayerEdit, this)
                .on('layerremove', this._disableLayerEdit, this);

            this.fire('enabled', {handler: this.type});
            this._map.fire('draw:editstart', { handler: this.type });
        },

        disable: function () {
            if (!this._enabled) { return; }

            this.fire('disabled', {handler: this.type});
            this._map.fire('draw:editstop', { handler: this.type });

            this._featureGroup
                .off('layeradd', this._enableLayerEdit, this)
                .off('layerremove', this._disableLayerEdit, this);

            L.Handler.prototype.disable.call(this);
        },

        addHooks: function () {
            var map = this._map;

            if (map) {
                map.getContainer().focus();

                this._featureGroup.eachLayer(this._enableLayerEdit, this);

                this._tooltip = new L.Tooltip(this._map);
                this._tooltip.updateContent({
                    text: L.drawLocal.edit.handlers.edit.tooltip.text,
                    subtext: L.drawLocal.edit.handlers.edit.tooltip.subtext
                });

                this._map.on('mousemove', this._onMouseMove, this);
            }
        },

        removeHooks: function () {
            if (this._map) {
                // Clean up selected layers.
                this._featureGroup.eachLayer(this._disableLayerEdit, this);

                // Clear the backups of the original layers
                this._uneditedLayerProps = {};

                this._tooltip.dispose();
                this._tooltip = null;

                this._map.off('mousemove', this._onMouseMove, this);
            }
        },

        revertLayers: function () {
            this._featureGroup.eachLayer(function (layer) {
                this._revertLayer(layer);
            }, this);
        },

        save: function () {
            var editedLayers = new L.LayerGroup();
            this._featureGroup.eachLayer(function (layer) {
                if (layer.edited) {
                    editedLayers.addLayer(layer);
                    layer.edited = false;
                }
            });
            this._map.fire('draw:edited', {layers: editedLayers});
        },

        _backupLayer: function (layer) {
            var id = L.Util.stamp(layer);

            if (!this._uneditedLayerProps[id]) {
                // Polyline, Polygon or Rectangle
                if (layer instanceof L.Polyline || layer instanceof L.Polygon || layer instanceof L.Rectangle) {
                    this._uneditedLayerProps[id] = {
                        latlngs: L.LatLngUtil.cloneLatLngs(layer.getLatLngs())
                    };
                } else if (layer instanceof L.Circle) {
                    this._uneditedLayerProps[id] = {
                        latlng: L.LatLngUtil.cloneLatLng(layer.getLatLng()),
                        radius: layer.getRadius()
                    };
                } else { // Marker
                    this._uneditedLayerProps[id] = {
                        latlng: L.LatLngUtil.cloneLatLng(layer.getLatLng())
                    };
                }
            }
        },

        _revertLayer: function (layer) {
            var id = L.Util.stamp(layer);
            layer.edited = false;
            if (this._uneditedLayerProps.hasOwnProperty(id)) {
                // Polyline, Polygon or Rectangle
                if (layer instanceof L.Polyline || layer instanceof L.Polygon || layer instanceof L.Rectangle) {
                    layer.setLatLngs(this._uneditedLayerProps[id].latlngs);
                } else if (layer instanceof L.Circle) {
                    layer.setLatLng(this._uneditedLayerProps[id].latlng);
                    layer.setRadius(this._uneditedLayerProps[id].radius);
                } else { // Marker
                    layer.setLatLng(this._uneditedLayerProps[id].latlng);
                }
            }
        },

        _toggleMarkerHighlight: function (marker) {
            if (!marker._icon) {
                return;
            }
            // This is quite naughty, but I don't see another way of doing it. (short of setting a new icon)
            var icon = marker._icon;

            icon.style.display = 'none';

            if (L.DomUtil.hasClass(icon, 'leaflet-edit-marker-selected')) {
                L.DomUtil.removeClass(icon, 'leaflet-edit-marker-selected');
                // Offset as the border will make the icon move.
                this._offsetMarker(icon, -4);

            } else {
                L.DomUtil.addClass(icon, 'leaflet-edit-marker-selected');
                // Offset as the border will make the icon move.
                this._offsetMarker(icon, 4);
            }

            icon.style.display = '';
        },

        _offsetMarker: function (icon, offset) {
            var iconMarginTop = parseInt(icon.style.marginTop, 10) - offset,
                iconMarginLeft = parseInt(icon.style.marginLeft, 10) - offset;

            icon.style.marginTop = iconMarginTop + 'px';
            icon.style.marginLeft = iconMarginLeft + 'px';
        },

        _enableLayerEdit: function (e) {
            var layer = e.layer || e.target || e,
                isMarker = layer instanceof L.Marker,
                pathOptions;

            // Don't do anything if this layer is a marker but doesn't have an icon. Markers
            // should usually have icons. If using Leaflet.draw with Leafler.markercluster there
            // is a chance that a marker doesn't.
            if (isMarker && !layer._icon) {
                return;
            }

            // Back up this layer (if haven't before)
            this._backupLayer(layer);

            // Update layer style so appears editable
            if (this._selectedPathOptions) {
                pathOptions = L.Util.extend({}, this._selectedPathOptions);

                if (isMarker) {
                    this._toggleMarkerHighlight(layer);
                } else {
                    layer.options.previousOptions = layer.options;

                    // Make sure that Polylines are not filled
                    if (!(layer instanceof L.Circle) && !(layer instanceof L.Polygon) && !(layer instanceof L.Rectangle)) {
                        pathOptions.fill = false;
                    }

                    layer.setStyle(pathOptions);
                }
            }

            if (isMarker) {
                layer.dragging.enable();
                layer.on('dragend', this._onMarkerDragEnd);
            } else {
                layer.editing.enable();
            }
        },

        _disableLayerEdit: function (e) {
            var layer = e.layer || e.target || e;
            layer.edited = false;

            // Reset layer styles to that of before select
            if (this._selectedPathOptions) {
                if (layer instanceof L.Marker) {
                    this._toggleMarkerHighlight(layer);
                } else {
                    // reset the layer style to what is was before being selected
                    layer.setStyle(layer.options.previousOptions);
                    // remove the cached options for the layer object
                    delete layer.options.previousOptions;
                }
            }

            if (layer instanceof L.Marker) {
                layer.dragging.disable();
                layer.off('dragend', this._onMarkerDragEnd, this);
            } else {
                layer.editing.disable();
            }
        },

        _onMarkerDragEnd: function (e) {
            var layer = e.target;
            layer.edited = true;
        },

        _onMouseMove: function (e) {
            this._tooltip.updatePosition(e.latlng);
        },

        _hasAvailableLayers: function () {
            return this._featureGroup.getLayers().length !== 0;
        }
    });


    L.EditToolbar.Delete = L.Handler.extend({
        statics: {
            TYPE: 'remove' // not delete as delete is reserved in js
        },

        includes: L.Mixin.Events,

        initialize: function (map, options) {
            L.Handler.prototype.initialize.call(this, map);

            L.Util.setOptions(this, options);

            // Store the selectable layer group for ease of access
            this._deletableLayers = this.options.featureGroup;

            if (!(this._deletableLayers instanceof L.FeatureGroup)) {
                throw new Error('options.featureGroup must be a L.FeatureGroup');
            }

            // Save the type so super can fire, need to do this as cannot do this.TYPE :(
            this.type = L.EditToolbar.Delete.TYPE;
        },

        enable: function () {
            if (this._enabled || !this._hasAvailableLayers()) {
                return;
            }

            L.Handler.prototype.enable.call(this);

            this._deletableLayers
                .on('layeradd', this._enableLayerDelete, this)
                .on('layerremove', this._disableLayerDelete, this);

            this.fire('enabled', { handler: this.type});
            this._map.fire('draw:editstart', { handler: this.type });
        },

        disable: function () {
            if (!this._enabled) { return; }

            L.Handler.prototype.disable.call(this);

            this._deletableLayers
                .off('layeradd', this._enableLayerDelete, this)
                .off('layerremove', this._disableLayerDelete, this);

            this.fire('disabled', { handler: this.type});
            this._map.fire('draw:editstop', { handler: this.type });
        },

        addHooks: function () {
            var map = this._map;

            if (map) {
                map.getContainer().focus();

                this._deletableLayers.eachLayer(this._enableLayerDelete, this);
                this._deletedLayers = new L.layerGroup();

                this._tooltip = new L.Tooltip(this._map);
                this._tooltip.updateContent({ text: L.drawLocal.edit.handlers.remove.tooltip.text });

                this._map.on('mousemove', this._onMouseMove, this);
            }
        },

        removeHooks: function () {
            if (this._map) {
                this._deletableLayers.eachLayer(this._disableLayerDelete, this);
                this._deletedLayers = null;

                this._tooltip.dispose();
                this._tooltip = null;

                this._map.off('mousemove', this._onMouseMove, this);
            }
        },

        revertLayers: function () {
            // Iterate of the deleted layers and add them back into the featureGroup
            this._deletedLayers.eachLayer(function (layer) {
                this._deletableLayers.addLayer(layer);
            }, this);
        },

        save: function () {
            this._map.fire('draw:deleted', { layers: this._deletedLayers });
        },

        _enableLayerDelete: function (e) {
            var layer = e.layer || e.target || e;

            layer.on('click', this._removeLayer, this);
        },

        _disableLayerDelete: function (e) {
            var layer = e.layer || e.target || e;

            layer.off('click', this._removeLayer, this);

            // Remove from the deleted layers so we can't accidently revert if the user presses cancel
            this._deletedLayers.removeLayer(layer);
        },

        _removeLayer: function (e) {
            var layer = e.layer || e.target || e;

            this._deletableLayers.removeLayer(layer);

            this._deletedLayers.addLayer(layer);
        },

        _onMouseMove: function (e) {
            this._tooltip.updatePosition(e.latlng);
        },

        _hasAvailableLayers: function () {
            return this._deletableLayers.getLayers().length !== 0;
        }
    });


}(window, document));