(function () {
    'use strict';

    /**
     * GoogleMutant by Iván Sánchez Ortega <ivan@sanchezortega.es> https://ivan.sanchezortega.es
     * Source and issue tracking: https://gitlab.com/IvanSanchez/Leaflet.GridLayer.GoogleMutant/
     *
     * Based on techniques from https://github.com/shramov/leaflet-plugins
     * and https://avinmathew.com/leaflet-and-google-maps/ , but relying on MutationObserver.
     *
     * "THE BEER-WARE LICENSE":
     * <ivan@sanchezortega.es> wrote this file. As long as you retain this notice you
     * can do whatever you want with this stuff. If we meet some day, and you think
     * this stuff is worth it, you can buy me a beer in return.
     *
     * Uses MIT-licensed code from https://github.com/rsms/js-lru/
     */

    // This implementation of LRUMap is a copy of https://github.com/rsms/js-lru/ ,
    // trivially adapted for ES6 exports.

    /*
    The MIT License

    Copyright (c) 2010-2020 Rasmus Andersson <https://rsms.me/>

    Permission is hereby granted, free of charge, to any person obtaining a copy
    of this software and associated documentation files (the "Software"), to deal
    in the Software without restriction, including without limitation the rights
    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    copies of the Software, and to permit persons to whom the Software is
    furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included in
    all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    THE SOFTWARE.
    */

    /**
     * A doubly linked list-based Least Recently Used (LRU) cache. Will keep most
     * recently used items while discarding least recently used items when its limit
     * is reached.
     *
     * Licensed under MIT. Copyright (c) 2010 Rasmus Andersson <http://hunch.se/>
     * See README.md for details.
     *
     * Illustration of the design:
     *
     *       entry             entry             entry             entry
     *       ______            ______            ______            ______
     *      | head |.newer => |      |.newer => |      |.newer => | tail |
     *      |  A   |          |  B   |          |  C   |          |  D   |
     *      |______| <= older.|______| <= older.|______| <= older.|______|
     *
     *  removed  <--  <--  <--  <--  <--  <--  <--  <--  <--  <--  <--  added
     */

    var NEWER = Symbol("newer");
    var OLDER = Symbol("older");

    var LRUMap = function LRUMap(limit, entries) {
        if (typeof limit !== "number") {
            // called as (entries)
            entries = limit;
            limit = 0;
        }

        this.size = 0;
        this.limit = limit;
        this.oldest = this.newest = undefined;
        this._keymap = new Map();

        if (entries) {
            this.assign(entries);
            if (limit < 1) {
                this.limit = this.size;
            }
        }
    };

    LRUMap.prototype._markEntryAsUsed = function _markEntryAsUsed (entry) {
        if (entry === this.newest) {
            // Already the most recenlty used entry, so no need to update the list
            return;
        }
        // HEAD--------------TAIL
        //   <.older   .newer>
        //  <--- add direction --
        //   A  B  C  <D>  E
        if (entry[NEWER]) {
            if (entry === this.oldest) {
                this.oldest = entry[NEWER];
            }
            entry[NEWER][OLDER] = entry[OLDER]; // C <-- E.
        }
        if (entry[OLDER]) {
            entry[OLDER][NEWER] = entry[NEWER]; // C. --> E
        }
        entry[NEWER] = undefined; // D --x
        entry[OLDER] = this.newest; // D. --> E
        if (this.newest) {
            this.newest[NEWER] = entry; // E. <-- D
        }
        this.newest = entry;
    };

    LRUMap.prototype.assign = function assign (entries) {
        var entry,
            limit = this.limit || Number.MAX_VALUE;
        this._keymap.clear();
        var it = entries[Symbol.iterator]();
        for (var itv = it.next(); !itv.done; itv = it.next()) {
            var e = new Entry(itv.value[0], itv.value[1]);
            this._keymap.set(e.key, e);
            if (!entry) {
                this.oldest = e;
            } else {
                entry[NEWER] = e;
                e[OLDER] = entry;
            }
            entry = e;
            if (limit-- == 0) {
                throw new Error("overflow");
            }
        }
        this.newest = entry;
        this.size = this._keymap.size;
    };

    LRUMap.prototype.get = function get (key) {
        // First, find our cache entry
        var entry = this._keymap.get(key);
        if (!entry) { return; } // Not cached. Sorry.
        // As <key> was found in the cache, register it as being requested recently
        this._markEntryAsUsed(entry);
        return entry.value;
    };

    LRUMap.prototype.set = function set (key, value) {
        var entry = this._keymap.get(key);

        if (entry) {
            // update existing
            entry.value = value;
            this._markEntryAsUsed(entry);
            return this;
        }

        // new entry
        this._keymap.set(key, (entry = new Entry(key, value)));

        if (this.newest) {
            // link previous tail to the new tail (entry)
            this.newest[NEWER] = entry;
            entry[OLDER] = this.newest;
        } else {
            // we're first in -- yay
            this.oldest = entry;
        }

        // add new entry to the end of the linked list -- it's now the freshest entry.
        this.newest = entry;
        ++this.size;
        if (this.size > this.limit) {
            // we hit the limit -- remove the head
            this.shift();
        }

        return this;
    };

    LRUMap.prototype.shift = function shift () {
        // todo: handle special case when limit == 1
        var entry = this.oldest;
        if (entry) {
            if (this.oldest[NEWER]) {
                // advance the list
                this.oldest = this.oldest[NEWER];
                this.oldest[OLDER] = undefined;
            } else {
                // the cache is exhausted
                this.oldest = undefined;
                this.newest = undefined;
            }
            // Remove last strong reference to <entry> and remove links from the purged
            // entry being returned:
            entry[NEWER] = entry[OLDER] = undefined;
            this._keymap.delete(entry.key);
            --this.size;
            return [entry.key, entry.value];
        }
    };

    // -------------------------------------------------------------------------------------
    // Following code (until end of class definition) is optional and can be removed without
    // breaking the core functionality.

    LRUMap.prototype.find = function find (key) {
        var e = this._keymap.get(key);
        return e ? e.value : undefined;
    };

    LRUMap.prototype.has = function has (key) {
        return this._keymap.has(key);
    };

    LRUMap.prototype.delete = function delete$1 (key) {
        var entry = this._keymap.get(key);
        if (!entry) { return; }
        this._keymap.delete(entry.key);
        if (entry[NEWER] && entry[OLDER]) {
            // relink the older entry with the newer entry
            entry[OLDER][NEWER] = entry[NEWER];
            entry[NEWER][OLDER] = entry[OLDER];
        } else if (entry[NEWER]) {
            // remove the link to us
            entry[NEWER][OLDER] = undefined;
            // link the newer entry to head
            this.oldest = entry[NEWER];
        } else if (entry[OLDER]) {
            // remove the link to us
            entry[OLDER][NEWER] = undefined;
            // link the newer entry to head
            this.newest = entry[OLDER];
        } else {
            // if(entry[OLDER] === undefined && entry.newer === undefined) {
            this.oldest = this.newest = undefined;
        }

        this.size--;
        return entry.value;
    };

    LRUMap.prototype.clear = function clear () {
        // Not clearing links should be safe, as we don't expose live links to user
        this.oldest = this.newest = undefined;
        this.size = 0;
        this._keymap.clear();
    };

    LRUMap.prototype.keys = function keys () {
        return new KeyIterator(this.oldest);
    };

    LRUMap.prototype.values = function values () {
        return new ValueIterator(this.oldest);
    };

    LRUMap.prototype.entries = function entries () {
        return this;
    };

    LRUMap.prototype[Symbol.iterator] = function () {
        return new EntryIterator(this.oldest);
    };

    LRUMap.prototype.forEach = function forEach (fun, thisObj) {
        if (typeof thisObj !== "object") {
            thisObj = this;
        }
        var entry = this.oldest;
        while (entry) {
            fun.call(thisObj, entry.value, entry.key, this);
            entry = entry[NEWER];
        }
    };

    /** Returns a JSON (array) representation */
    LRUMap.prototype.toJSON = function toJSON () {
        var s = new Array(this.size),
            i = 0,
            entry = this.oldest;
        while (entry) {
            s[i++] = { key: entry.key, value: entry.value };
            entry = entry[NEWER];
        }
        return s;
    };

    /** Returns a String representation */
    LRUMap.prototype.toString = function toString () {
        var s = "",
            entry = this.oldest;
        while (entry) {
            s += String(entry.key) + ":" + entry.value;
            entry = entry[NEWER];
            if (entry) {
                s += " < ";
            }
        }
        return s;
    };

    function Entry(key, value) {
        this.key = key;
        this.value = value;
        this[NEWER] = undefined;
        this[OLDER] = undefined;
    }

    function EntryIterator(oldestEntry) {
        this.entry = oldestEntry;
    }
    EntryIterator.prototype[Symbol.iterator] = function () {
        return this;
    };
    EntryIterator.prototype.next = function () {
        var ent = this.entry;
        if (ent) {
            this.entry = ent[NEWER];
            return { done: false, value: [ent.key, ent.value] };
        } else {
            return { done: true, value: undefined };
        }
    };

    function KeyIterator(oldestEntry) {
        this.entry = oldestEntry;
    }
    KeyIterator.prototype[Symbol.iterator] = function () {
        return this;
    };
    KeyIterator.prototype.next = function () {
        var ent = this.entry;
        if (ent) {
            this.entry = ent[NEWER];
            return { done: false, value: ent.key };
        } else {
            return { done: true, value: undefined };
        }
    };

    function ValueIterator(oldestEntry) {
        this.entry = oldestEntry;
    }
    ValueIterator.prototype[Symbol.iterator] = function () {
        return this;
    };
    ValueIterator.prototype.next = function () {
        var ent = this.entry;
        if (ent) {
            this.entry = ent[NEWER];
            return { done: false, value: ent.value };
        } else {
            return { done: true, value: undefined };
        }
    };

    // GoogleMutant by Iván Sánchez Ortega <ivan@sanchezortega.es>

    var GAPIPromise = (function () {
        var singletonInstance;
        return function () {
            if (!singletonInstance) {
                singletonInstance = new Promise(function (resolve, reject) {
                    var checkCounter = 0,
                        intervalId = null;

                    intervalId = setInterval(function () {
                        if (checkCounter >= 20) {
                            clearInterval(intervalId);
                            return reject(new Error("window.google not found after 10 seconds"));
                        }
                        if (!!window.google && !!window.google.maps && !!window.google.maps.Map) {
                            clearInterval(intervalId);
                            return resolve(window.google);
                        }
                        ++checkCounter;
                    }, 500);
                });
            }
            return singletonInstance;
        };
    })();

    // 🍂class GridLayer.GoogleMutant
    // 🍂extends GridLayer
    L.GridLayer.GoogleMutant = L.GridLayer.extend({
        options: {
            minZoom: 0,
            maxZoom: 21, // can be 23, but ugly if more than maxNativeZoom
            tileSize: 256,
            subdomains: "abc",
            errorTileUrl: "",
            attribution: "", // The mutant container will add its own attribution anyways.
            opacity: 1,
            continuousWorld: false,
            noWrap: false,
            // 🍂option type: String = 'roadmap'
            // Google's map type. Valid values are 'roadmap', 'satellite' or 'terrain'. 'hybrid' is not really supported.
            type: "roadmap",
            maxNativeZoom: 21,
        },

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

            this._isMounted = true;

            this.once("spawned", function () {
                if (this._subLayers) {
                    //restore previously added google layers
                    for (var layerName in this._subLayers) {
                        this._subLayers[layerName].setMap(this._mutant);
                    }
                }
            });

            // Couple data structures indexed by tile key
            this._tileCallbacks = {}; // Callbacks for promises for tiles that are expected
            this._lru = new LRUMap(100); // Tile LRU cache

            this._imagesPerTile = this.options.type === "hybrid" ? 2 : 1;

            this._boundOnMutatedImage = this._onMutatedImage.bind(this);
        },

        onAdd: function (map) {
            var this$1 = this;

            L.GridLayer.prototype.onAdd.call(this, map);
            this._initMutantContainer();

            // Attribution and logo nodes are not mutated a second time if the
            // mutant is removed and re-added to the map, hence they are
            // not cleaned up on layer removal, so they can be added here.
            if (this._logoContainer) {
                map._controlCorners.bottomleft.appendChild(this._logoContainer);
            }
            if (this._attributionContainer) {
                map._controlCorners.bottomright.appendChild(this._attributionContainer);
            }

            GAPIPromise().then(function () {
                if (!this$1._isMounted) {
                    return;
                }
                this$1._ready = true;

                this$1._initMutant();

                map = this$1._map;
                if (!map) {
                    return;
                }
                var moveevent = this$1.options.updateWhenIdle ? "moveend" : "move";
                map.on(moveevent, this$1._update, this$1);
                this$1.once("remove", function () {
                    this._map.off(moveevent, this._update, this);
                });
                //handle layer being added to a map for which there are no Google tiles at the given zoom
                google.maps.event.addListenerOnce(this$1._mutant, "idle", function () {
                    if (!this$1._map) {
                        return;
                    }
                    this$1._checkZoomLevels();
                    this$1._mutantIsReady = true;
                });

                this$1._update();
            });
        },

        onRemove: function (map) {
            L.GridLayer.prototype.onRemove.call(this, map);
            this._observer.disconnect();
            map._container.removeChild(this._mutantContainer);
            if (this._logoContainer) {
                L.DomUtil.remove(this._logoContainer);
            }
            if (this._attributionContainer) {
                L.DomUtil.remove(this._attributionContainer);
            }

            google.maps.event.clearListeners(map, "idle");
            if (this._mutant) {
                google.maps.event.clearListeners(this._mutant, "idle");
            }
            map.off("move moveend", this._update, this);

            this._isMounted = false;
        },

        // 🍂method addGoogleLayer(name: String, options?: Object): this
        // Adds layer with the given name and options to the google Map instance.
        // `name`: one of the google maps API layers, with it's constructor available in `google.maps` object.
        // currently following values supported: 'TrafficLayer', 'TransitLayer', 'BicyclingLayer'.
        // `options`: see https://developers.google.com/maps/documentation/javascript/reference/map
        addGoogleLayer: function (googleLayerName, options) {
            var this$1 = this;

            if (!this._subLayers) { this._subLayers = {}; }
            GAPIPromise().then(function () {
                var Constructor = google.maps[googleLayerName];
                var googleLayer = new Constructor(options);
                if (this$1._mutant) {
                    googleLayer.setMap(this$1._mutant);
                } // otherwise it will be added on 'spawned'
                this$1._subLayers[googleLayerName] = googleLayer;
            });
            return this;
        },

        // 🍂method removeGoogleLayer(name: String): this
        // Removes layer with the given name from the google Map instance.
        removeGoogleLayer: function (googleLayerName) {
            var this$1 = this;

            GAPIPromise().then(function () {
                var googleLayer = this$1._subLayers && this$1._subLayers[googleLayerName];
                if (googleLayer) {
                    googleLayer.setMap(null);
                    delete this$1._subLayers[googleLayerName];
                }
            });
            return this;
        },

        _initMutantContainer: function () {
            if (!this._mutantContainer) {
                this._mutantContainer = L.DomUtil.create(
                    "div",
                    "leaflet-google-mutant leaflet-top leaflet-left"
                );
                this._mutantContainer.id = "_MutantContainer_" + L.Util.stamp(this._mutantContainer);
                this._mutantContainer.style.zIndex = 800; //leaflet map pane at 400, controls at 1000
                this._mutantContainer.style.pointerEvents = "none";

                L.DomEvent.off(this._mutantContainer);
            }
            this._map.getContainer().appendChild(this._mutantContainer);

            this.setOpacity(this.options.opacity);
            var style = this._mutantContainer.style;
            if (this.options.zoomSnap < 1) {
                // Fractional zoom needs a bigger mutant container in order to load more (smaller) tiles
                style.width = "180%";
                style.height = "180%";
            } else {
                style.width = "100%";
                style.height = "100%";
            }
            style.zIndex = -1;

            this._attachObserver(this._mutantContainer);
        },

        _initMutant: function () {
            var this$1 = this;

            if (this._mutant) {
                // reuse old _mutant, just make sure it has the correct size
                return;
            }

            var map = new google.maps.Map(this._mutantContainer, {
                center: { lat: 0, lng: 0 },
                zoom: 0,
                tilt: 0,
                mapTypeId: this.options.type,
                disableDefaultUI: true,
                keyboardShortcuts: false,
                draggable: false,
                disableDoubleClickZoom: true,
                scrollwheel: false,
                streetViewControl: false,
                styles: this.options.styles || {},
                backgroundColor: "transparent",
            });

            this._mutant = map;

            google.maps.event.addListenerOnce(map, "idle", function () {
                var nodes = this$1._mutantContainer.querySelectorAll("a");
                for (var i = 0; i < nodes.length; ++i) {
                    nodes[i].style.pointerEvents = "auto";
                }
            });

            // 🍂event spawned
            // Fired when the mutant has been created.
            this.fire("spawned", { mapObject: map });
        },

        _attachObserver: function _attachObserver(node) {
            if (!this._observer) { this._observer = new MutationObserver(this._onMutations.bind(this)); }

            // pass in the target node, as well as the observer options
            this._observer.observe(node, { childList: true, subtree: true });

            // if we are reusing an old _mutantContainer, we must manually detect
            // all existing tiles in it
            Array.prototype.forEach.call(node.querySelectorAll("img"), this._boundOnMutatedImage);
        },

        _onMutations: function _onMutations(mutations) {
            for (var i = 0; i < mutations.length; ++i) {
                var mutation = mutations[i];
                for (var j = 0; j < mutation.addedNodes.length; ++j) {
                    var node = mutation.addedNodes[j];

                    if (node instanceof HTMLImageElement) {
                        this._onMutatedImage(node);
                    } else if (node instanceof HTMLElement) {
                        Array.prototype.forEach.call(
                            node.querySelectorAll("img"),
                            this._boundOnMutatedImage
                        );

                        // Check for, and remove, the "Google Maps can't load correctly" div.
                        // You *are* loading correctly, you dumbwit.
                        if (node.style.backgroundColor === "white") {
                            L.DomUtil.remove(node);
                        }

                        // Check for, and remove, the "For development purposes only" divs on the aerial/hybrid tiles.
                        if (node.textContent.indexOf("For development purposes only") === 0) {
                            L.DomUtil.remove(node);
                        }

                        // Check for, and remove, the "Sorry, we have no imagery here"
                        // empty <div>s. The [style*="text-align: center"] selector
                        // avoids matching the attribution notice.
                        // This empty div doesn't have a reference to the tile
                        // coordinates, so it's not possible to mark the tile as
                        // failed.
                        Array.prototype.forEach.call(
                            node.querySelectorAll('div[draggable=false][style*="text-align: center"]'),
                            L.DomUtil.remove
                        );

                        // Move Google attributions to leaflet's bottom-right control container
                        if (
                            node.querySelectorAll(".gmnoprint").length > 0 ||
                            node.querySelectorAll('a[title="Click to see this area on Google Maps"]')
                                .length > 0
                        ) {
                            var ctr = (this._attributionContainer = L.DomUtil.create(
                                "div",
                                "leaflet-control leaflet-control-attribution"
                            ));
                            L.DomEvent.disableClickPropagation(ctr);
                            ctr.style.height = "14px";
                            ctr.style.background = "none";
                            this._map._controlCorners.bottomright.appendChild(ctr);
                            ctr.appendChild(node);
                        }

                        // Move Google logo to leaflet's bottom-left control container
                        if (node.style.zIndex == 1000000) {
                            this._map._controlCorners.bottomleft.appendChild(node);
                            this._logoContainer = node;
                        }
                    }
                }
            }
        },

        // Only images which 'src' attrib match this will be considered for moving around.
        // Looks like some kind of string-based protobuf, maybe??
        // Only the roads (and terrain, and vector-based stuff) match this pattern
        _roadRegexp: /!1i(\d+)!2i(\d+)!3i(\d+)!/,

        // On the other hand, raster imagery matches this other pattern
        _satRegexp: /x=(\d+)&y=(\d+)&z=(\d+)/,

        // On small viewports, when zooming in/out, a static image is requested
        // This will not be moved around, just removed from the DOM.
        _staticRegExp: /StaticMapService\.GetMapImage/,

        _onMutatedImage: function _onMutatedImage(imgNode) {
            var coords;
            var match = imgNode.src.match(this._roadRegexp);
            var sublayer = 0;

            if (match) {
                coords = {
                    z: match[1],
                    x: match[2],
                    y: match[3],
                };
                if (this._imagesPerTile > 1) {
                    imgNode.style.zIndex = 1;
                    sublayer = 1;
                }
            } else {
                match = imgNode.src.match(this._satRegexp);
                if (match) {
                    coords = {
                        x: match[1],
                        y: match[2],
                        z: match[3],
                    };
                }
                // imgNode.style.zIndex = 0;
                sublayer = 0;
            }

            if (coords) {
                var tileKey = this._tileCoordsToKey(coords);
                imgNode.style.position = "absolute";
                imgNode.style.visibility = "hidden";

                var key = tileKey + "/" + sublayer;
                // Cache img so it can also be used in subsequent tile requests
                this._lru.set(key, imgNode);

                if (key in this._tileCallbacks && this._tileCallbacks[key]) {
                    // Use the tile for *all* pending callbacks. They'll be cloned anyway.
                    this._tileCallbacks[key].forEach(function (callback) { return callback(imgNode); });
                    delete this._tileCallbacks[key];
                }
            } else if (imgNode.src.match(this._staticRegExp)) {
                imgNode.style.visibility = "hidden";
            }
        },

        createTile: function (coords, done) {
            var key = this._tileCoordsToKey(coords),
                tileContainer = L.DomUtil.create("div");

            tileContainer.style.textAlign = "left";
            tileContainer.dataset.pending = this._imagesPerTile;
            done = done.bind(this, null, tileContainer);

            for (var i = 0; i < this._imagesPerTile; ++i) {
                var key2 = key + "/" + i,
                    imgNode = this._lru.get(key2);
                if (imgNode) {
                    tileContainer.appendChild(this._clone(imgNode));
                    --tileContainer.dataset.pending;
                } else {
                    this._tileCallbacks[key2] = this._tileCallbacks[key2] || [];
                    this._tileCallbacks[key2].push(
                        function (c /*, k2*/) {
                            return function (imgNode) {
                                c.appendChild(this._clone(imgNode));
                                --c.dataset.pending;
                                if (!parseInt(c.dataset.pending)) {
                                    done();
                                }
                            }.bind(this);
                        }.bind(this)(tileContainer /*, key2*/)
                    );
                }
            }

            if (!parseInt(tileContainer.dataset.pending)) {
                L.Util.requestAnimFrame(done);
            }
            return tileContainer;
        },

        _clone: function (imgNode) {
            var clonedImgNode = imgNode.cloneNode(true);
            clonedImgNode.style.visibility = "visible";
            return clonedImgNode;
        },

        _checkZoomLevels: function () {
            //setting the zoom level on the Google map may result in a different zoom level than the one requested
            //(it won't go beyond the level for which they have data).
            var zoomLevel = this._map.getZoom(),
                gMapZoomLevel = this._mutant.getZoom();

            if (!zoomLevel || !gMapZoomLevel) { return; }

            if (
                gMapZoomLevel !== zoomLevel || //zoom levels are out of sync, Google doesn't have data
                gMapZoomLevel > this.options.maxNativeZoom
            ) {
                //at current location, Google does have data (contrary to maxNativeZoom)
                //Update maxNativeZoom
                this._setMaxNativeZoom(gMapZoomLevel);
            }
        },

        _setMaxNativeZoom: function (zoomLevel) {
            if (zoomLevel !== this.options.maxNativeZoom) {
                this.options.maxNativeZoom = zoomLevel;
                this._resetView();
            }
        },

        _update: function () {
            // zoom level check needs to happen before super's implementation (tile addition/creation)
            // otherwise tiles may be missed if maxNativeZoom is not yet correctly determined
            if (this._mutant) {
                var center = this._map.getCenter(),
                    _center = new google.maps.LatLng(center.lat, center.lng),
                    zoom = Math.round(this._map.getZoom()),
                    mutantZoom = this._mutant.getZoom();

                this._mutant.setCenter(_center);

                //ignore fractional zoom levels
                if (zoom !== mutantZoom) {
                    this._mutant.setZoom(zoom);

                    if (this._mutantIsReady) { this._checkZoomLevels(); }
                    //else zoom level check will be done later by 'idle' handler
                }
            }

            L.GridLayer.prototype._update.call(this);
        },

        _resize: function () {
            var factor = this.options.zoomSnap < 1 ? 1.8 : 1;
            var size = this._map.getSize().multiplyBy(factor);
            if (
                this._mutantContainer.style.width === size.x &&
                this._mutantContainer.style.height === size.y
            ) {
                return;
            }
            this.setElementSize(this._mutantContainer, size);
            if (!this._mutant) { return; }
            google.maps.event.trigger(this._mutant, "resize");
        },

        _handleZoomAnim: function () {
            if (!this._mutant) { return; }

            var center = this._map.getCenter(),
                _center = new google.maps.LatLng(center.lat, center.lng);

            this._mutant.setCenter(_center);
            this._mutant.setZoom(Math.round(this._map.getZoom()));
        },
    });

    // 🍂factory gridLayer.googleMutant(options)
    // Returns a new `GridLayer.GoogleMutant` given its options
    L.gridLayer.googleMutant = function (options) {
        return new L.GridLayer.GoogleMutant(options);
    };

}());
//# sourceMappingURL=Leaflet.GoogleMutant.js.map
