JimV-C/static/widgets/maps/gmaps/gmaps.js

(function(root, factory) {
    if(typeof exports === 'object') {
        module.exports = factory();
    }
    else if(typeof define === 'function' && define.amd) {
        define('GMaps', [], factory);
    }

    root.GMaps = factory();

}(this, function() {

    /*!
     * GMaps.js v0.4.14
     * http://hpneo.github.com/gmaps/
     *
     * Copyright 2014, Gustavo Leon
     * Released under the MIT License.
     */

    if (!(typeof window.google === 'object' && window.google.maps)) {
        throw 'Google Maps API is required. Please register the following JavaScript library http://maps.google.com/maps/api/js?sensor=true.'
    }

    var extend_object = function(obj, new_obj) {
        var name;

        if (obj === new_obj) {
            return obj;
        }

        for (name in new_obj) {
            obj[name] = new_obj[name];
        }

        return obj;
    };

    var replace_object = function(obj, replace) {
        var name;

        if (obj === replace) {
            return obj;
        }

        for (name in replace) {
            if (obj[name] != undefined) {
                obj[name] = replace[name];
            }
        }

        return obj;
    };

    var array_map = function(array, callback) {
        var original_callback_params = Array.prototype.slice.call(arguments, 2),
            array_return = [],
            array_length = array.length,
            i;

        if (Array.prototype.map && array.map === Array.prototype.map) {
            array_return = Array.prototype.map.call(array, function(item) {
                callback_params = original_callback_params;
                callback_params.splice(0, 0, item);

                return callback.apply(this, callback_params);
            });
        }
        else {
            for (i = 0; i < array_length; i++) {
                callback_params = original_callback_params;
                callback_params.splice(0, 0, array[i]);
                array_return.push(callback.apply(this, callback_params));
            }
        }

        return array_return;
    };

    var array_flat = function(array) {
        var new_array = [],
            i;

        for (i = 0; i < array.length; i++) {
            new_array = new_array.concat(array[i]);
        }

        return new_array;
    };

    var coordsToLatLngs = function(coords, useGeoJSON) {
        var first_coord = coords[0],
            second_coord = coords[1];

        if (useGeoJSON) {
            first_coord = coords[1];
            second_coord = coords[0];
        }

        return new google.maps.LatLng(first_coord, second_coord);
    };

    var arrayToLatLng = function(coords, useGeoJSON) {
        var i;

        for (i = 0; i < coords.length; i++) {
            if (!(coords[i] instanceof google.maps.LatLng)) {
                if (coords[i].length > 0 && typeof(coords[i][0]) == "object") {
                    coords[i] = arrayToLatLng(coords[i], useGeoJSON);
                }
                else {
                    coords[i] = coordsToLatLngs(coords[i], useGeoJSON);
                }
            }
        }

        return coords;
    };

    var getElementById = function(id, context) {
        var element,
            id = id.replace('#', '');

        if ('jQuery' in this && context) {
            element = $("#" + id, context)[0];
        } else {
            element = document.getElementById(id);
        };

        return element;
    };

    var findAbsolutePosition = function(obj)  {
        var curleft = 0,
            curtop = 0;

        if (obj.offsetParent) {
            do {
                curleft += obj.offsetLeft;
                curtop += obj.offsetTop;
            } while (obj = obj.offsetParent);
        }

        return [curleft, curtop];
    };

    var GMaps = (function(global) {
        "use strict";

        var doc = document;

        var GMaps = function(options) {
            if (!this) return new GMaps(options);

            options.zoom = options.zoom || 15;
            options.mapType = options.mapType || 'roadmap';

            var self = this,
                i,
                events_that_hide_context_menu = ['bounds_changed', 'center_changed', 'click', 'dblclick', 'drag', 'dragend', 'dragstart', 'idle', 'maptypeid_changed', 'projection_changed', 'resize', 'tilesloaded', 'zoom_changed'],
                events_that_doesnt_hide_context_menu = ['mousemove', 'mouseout', 'mouseover'],
                options_to_be_deleted = ['el', 'lat', 'lng', 'mapType', 'width', 'height', 'markerClusterer', 'enableNewStyle'],
                container_id = options.el || options.div,
                markerClustererFunction = options.markerClusterer,
                mapType = google.maps.MapTypeId[options.mapType.toUpperCase()],
                map_center = new google.maps.LatLng(options.lat, options.lng),
                zoomControl = options.zoomControl || true,
                zoomControlOpt = options.zoomControlOpt || {
                        style: 'DEFAULT',
                        position: 'TOP_LEFT'
                    },
                zoomControlStyle = zoomControlOpt.style || 'DEFAULT',
                zoomControlPosition = zoomControlOpt.position || 'TOP_LEFT',
                panControl = options.panControl || true,
                mapTypeControl = options.mapTypeControl || true,
                scaleControl = options.scaleControl || true,
                streetViewControl = options.streetViewControl || true,
                overviewMapControl = overviewMapControl || true,
                map_options = {},
                map_base_options = {
                    zoom: this.zoom,
                    center: map_center,
                    mapTypeId: mapType
                },
                map_controls_options = {
                    panControl: panControl,
                    zoomControl: zoomControl,
                    zoomControlOptions: {
                        style: google.maps.ZoomControlStyle[zoomControlStyle],
                        position: google.maps.ControlPosition[zoomControlPosition]
                    },
                    mapTypeControl: mapTypeControl,
                    scaleControl: scaleControl,
                    streetViewControl: streetViewControl,
                    overviewMapControl: overviewMapControl
                };

            if (typeof(options.el) === 'string' || typeof(options.div) === 'string') {
                this.el = getElementById(container_id, options.context);
            } else {
                this.el = container_id;
            }

            if (typeof(this.el) === 'undefined' || this.el === null) {
                throw 'No element defined.';
            }

            window.context_menu = window.context_menu || {};
            window.context_menu[self.el.id] = {};

            this.controls = [];
            this.overlays = [];
            this.layers = []; // array with kml/georss and fusiontables layers, can be as many
            this.singleLayers = {}; // object with the other layers, only one per layer
            this.markers = [];
            this.polylines = [];
            this.routes = [];
            this.polygons = [];
            this.infoWindow = null;
            this.overlay_el = null;
            this.zoom = options.zoom;
            this.registered_events = {};

            this.el.style.width = options.width || this.el.scrollWidth || this.el.offsetWidth;
            this.el.style.height = options.height || this.el.scrollHeight || this.el.offsetHeight;

            google.maps.visualRefresh = options.enableNewStyle;

            for (i = 0; i < options_to_be_deleted.length; i++) {
                delete options[options_to_be_deleted[i]];
            }

            if(options.disableDefaultUI != true) {
                map_base_options = extend_object(map_base_options, map_controls_options);
            }

            map_options = extend_object(map_base_options, options);

            for (i = 0; i < events_that_hide_context_menu.length; i++) {
                delete map_options[events_that_hide_context_menu[i]];
            }

            for (i = 0; i < events_that_doesnt_hide_context_menu.length; i++) {
                delete map_options[events_that_doesnt_hide_context_menu[i]];
            }

            this.map = new google.maps.Map(this.el, map_options);

            if (markerClustererFunction) {
                this.markerClusterer = markerClustererFunction.apply(this, [this.map]);
            }

            var buildContextMenuHTML = function(control, e) {
                var html = '',
                    options = window.context_menu[self.el.id][control];

                for (var i in options){
                    if (options.hasOwnProperty(i)) {
                        var option = options[i];

                        html += '<li><a id="' + control + '_' + i + '" href="#">' + option.title + '</a></li>';
                    }
                }

                if (!getElementById('gmaps_context_menu')) return;

                var context_menu_element = getElementById('gmaps_context_menu');

                context_menu_element.innerHTML = html;

                var context_menu_items = context_menu_element.getElementsByTagName('a'),
                    context_menu_items_count = context_menu_items.length,
                    i;

                for (i = 0; i < context_menu_items_count; i++) {
                    var context_menu_item = context_menu_items[i];

                    var assign_menu_item_action = function(ev){
                        ev.preventDefault();

                        options[this.id.replace(control + '_', '')].action.apply(self, [e]);
                        self.hideContextMenu();
                    };

                    google.maps.event.clearListeners(context_menu_item, 'click');
                    google.maps.event.addDomListenerOnce(context_menu_item, 'click', assign_menu_item_action, false);
                }

                var position = findAbsolutePosition.apply(this, [self.el]),
                    left = position[0] + e.pixel.x - 15,
                    top = position[1] + e.pixel.y- 15;

                context_menu_element.style.left = left + "px";
                context_menu_element.style.top = top + "px";

                context_menu_element.style.display = 'block';
            };

            this.buildContextMenu = function(control, e) {
                if (control === 'marker') {
                    e.pixel = {};

                    var overlay = new google.maps.OverlayView();
                    overlay.setMap(self.map);

                    overlay.draw = function() {
                        var projection = overlay.getProjection(),
                            position = e.marker.getPosition();

                        e.pixel = projection.fromLatLngToContainerPixel(position);

                        buildContextMenuHTML(control, e);
                    };
                }
                else {
                    buildContextMenuHTML(control, e);
                }
            };

            this.setContextMenu = function(options) {
                window.context_menu[self.el.id][options.control] = {};

                var i,
                    ul = doc.createElement('ul');

                for (i in options.options) {
                    if (options.options.hasOwnProperty(i)) {
                        var option = options.options[i];

                        window.context_menu[self.el.id][options.control][option.name] = {
                            title: option.title,
                            action: option.action
                        };
                    }
                }

                ul.id = 'gmaps_context_menu';
                ul.style.display = 'none';
                ul.style.position = 'absolute';
                ul.style.minWidth = '100px';
                ul.style.background = 'white';
                ul.style.listStyle = 'none';
                ul.style.padding = '8px';
                ul.style.boxShadow = '2px 2px 6px #ccc';

                doc.body.appendChild(ul);

                var context_menu_element = getElementById('gmaps_context_menu')

                google.maps.event.addDomListener(context_menu_element, 'mouseout', function(ev) {
                    if (!ev.relatedTarget || !this.contains(ev.relatedTarget)) {
                        window.setTimeout(function(){
                            context_menu_element.style.display = 'none';
                        }, 400);
                    }
                }, false);
            };

            this.hideContextMenu = function() {
                var context_menu_element = getElementById('gmaps_context_menu');

                if (context_menu_element) {
                    context_menu_element.style.display = 'none';
                }
            };

            var setupListener = function(object, name) {
                google.maps.event.addListener(object, name, function(e){
                    if (e == undefined) {
                        e = this;
                    }

                    options[name].apply(this, [e]);

                    self.hideContextMenu();
                });
            };

            //google.maps.event.addListener(this.map, 'idle', this.hideContextMenu);
            google.maps.event.addListener(this.map, 'zoom_changed', this.hideContextMenu);

            for (var ev = 0; ev < events_that_hide_context_menu.length; ev++) {
                var name = events_that_hide_context_menu[ev];

                if (name in options) {
                    setupListener(this.map, name);
                }
            }

            for (var ev = 0; ev < events_that_doesnt_hide_context_menu.length; ev++) {
                var name = events_that_doesnt_hide_context_menu[ev];

                if (name in options) {
                    setupListener(this.map, name);
                }
            }

            google.maps.event.addListener(this.map, 'rightclick', function(e) {
                if (options.rightclick) {
                    options.rightclick.apply(this, [e]);
                }

                if(window.context_menu[self.el.id]['map'] != undefined) {
                    self.buildContextMenu('map', e);
                }
            });

            this.refresh = function() {
                google.maps.event.trigger(this.map, 'resize');
            };

            this.fitZoom = function() {
                var latLngs = [],
                    markers_length = this.markers.length,
                    i;

                for (i = 0; i < markers_length; i++) {
                    if(typeof(this.markers[i].visible) === 'boolean' && this.markers[i].visible) {
                        latLngs.push(this.markers[i].getPosition());
                    }
                }

                this.fitLatLngBounds(latLngs);
            };

            this.fitLatLngBounds = function(latLngs) {
                var total = latLngs.length;
                var bounds = new google.maps.LatLngBounds();

                for(var i=0; i < total; i++) {
                    bounds.extend(latLngs[i]);
                }

                this.map.fitBounds(bounds);
            };

            this.setCenter = function(lat, lng, callback) {
                this.map.panTo(new google.maps.LatLng(lat, lng));

                if (callback) {
                    callback();
                }
            };

            this.getElement = function() {
                return this.el;
            };

            this.zoomIn = function(value) {
                value = value || 1;

                this.zoom = this.map.getZoom() + value;
                this.map.setZoom(this.zoom);
            };

            this.zoomOut = function(value) {
                value = value || 1;

                this.zoom = this.map.getZoom() - value;
                this.map.setZoom(this.zoom);
            };

            var native_methods = [],
                method;

            for (method in this.map) {
                if (typeof(this.map[method]) == 'function' && !this[method]) {
                    native_methods.push(method);
                }
            }

            for (i=0; i < native_methods.length; i++) {
                (function(gmaps, scope, method_name) {
                    gmaps[method_name] = function(){
                        return scope[method_name].apply(scope, arguments);
                    };
                })(this, this.map, native_methods[i]);
            }
        };

        return GMaps;
    })(this);

    GMaps.prototype.createControl = function(options) {
        var control = document.createElement('div');

        control.style.cursor = 'pointer';

        if (options.disableDefaultStyles !== true) {
            control.style.fontFamily = 'Roboto, Arial, sans-serif';
            control.style.fontSize = '11px';
            control.style.boxShadow = 'rgba(0, 0, 0, 0.298039) 0px 1px 4px -1px';
        }

        for (var option in options.style) {
            control.style[option] = options.style[option];
        }

        if (options.id) {
            control.id = options.id;
        }

        if (options.classes) {
            control.className = options.classes;
        }

        if (options.content) {
            control.innerHTML = options.content;
        }

        if (options.position) {
            control.position = google.maps.ControlPosition[options.position.toUpperCase()];
        }

        for (var ev in options.events) {
            (function(object, name) {
                google.maps.event.addDomListener(object, name, function(){
                    options.events[name].apply(this, [this]);
                });
            })(control, ev);
        }

        control.index = 1;

        return control;
    };

    GMaps.prototype.addControl = function(options) {
        var control = this.createControl(options);
        this.controls.push(control);
        this.map.controls[control.position].push(control);

        return control;
    };

    GMaps.prototype.removeControl = function(control) {
        var position = null;

        for (var i = 0; i < this.controls.length; i++) {
            if (this.controls[i] == control) {
                position = this.controls[i].position;
                this.controls.splice(i, 1);
            }
        }

        if (position) {
            for (i = 0; i < this.map.controls.length; i++) {
                var controlsForPosition = this.map.controls[control.position]
                if (controlsForPosition.getAt(i) == control) {
                    controlsForPosition.removeAt(i);
                    break;
                }
            }
        }

        return control;
    };

    GMaps.prototype.createMarker = function(options) {
        if (options.lat == undefined && options.lng == undefined && options.position == undefined) {
            throw 'No latitude or longitude defined.';
        }

        var self = this,
            details = options.details,
            fences = options.fences,
            outside = options.outside,
            base_options = {
                position: new google.maps.LatLng(options.lat, options.lng),
                map: null
            },
            marker_options = extend_object(base_options, options);

        delete marker_options.lat;
        delete marker_options.lng;
        delete marker_options.fences;
        delete marker_options.outside;

        var marker = new google.maps.Marker(marker_options);

        marker.fences = fences;

        if (options.infoWindow) {
            marker.infoWindow = new google.maps.InfoWindow(options.infoWindow);

            var info_window_events = ['closeclick', 'content_changed', 'domready', 'position_changed', 'zindex_changed'];

            for (var ev = 0; ev < info_window_events.length; ev++) {
                (function(object, name) {
                    if (options.infoWindow[name]) {
                        google.maps.event.addListener(object, name, function(e){
                            options.infoWindow[name].apply(this, [e]);
                        });
                    }
                })(marker.infoWindow, info_window_events[ev]);
            }
        }

        var marker_events = ['animation_changed', 'clickable_changed', 'cursor_changed', 'draggable_changed', 'flat_changed', 'icon_changed', 'position_changed', 'shadow_changed', 'shape_changed', 'title_changed', 'visible_changed', 'zindex_changed'];

        var marker_events_with_mouse = ['dblclick', 'drag', 'dragend', 'dragstart', 'mousedown', 'mouseout', 'mouseover', 'mouseup'];

        for (var ev = 0; ev < marker_events.length; ev++) {
            (function(object, name) {
                if (options[name]) {
                    google.maps.event.addListener(object, name, function(){
                        options[name].apply(this, [this]);
                    });
                }
            })(marker, marker_events[ev]);
        }

        for (var ev = 0; ev < marker_events_with_mouse.length; ev++) {
            (function(map, object, name) {
                if (options[name]) {
                    google.maps.event.addListener(object, name, function(me){
                        if(!me.pixel){
                            me.pixel = map.getProjection().fromLatLngToPoint(me.latLng)
                        }

                        options[name].apply(this, [me]);
                    });
                }
            })(this.map, marker, marker_events_with_mouse[ev]);
        }

        google.maps.event.addListener(marker, 'click', function() {
            this.details = details;

            if (options.click) {
                options.click.apply(this, [this]);
            }

            if (marker.infoWindow) {
                self.hideInfoWindows();
                marker.infoWindow.open(self.map, marker);
            }
        });

        google.maps.event.addListener(marker, 'rightclick', function(e) {
            e.marker = this;

            if (options.rightclick) {
                options.rightclick.apply(this, [e]);
            }

            if (window.context_menu[self.el.id]['marker'] != undefined) {
                self.buildContextMenu('marker', e);
            }
        });

        if (marker.fences) {
            google.maps.event.addListener(marker, 'dragend', function() {
                self.checkMarkerGeofence(marker, function(m, f) {
                    outside(m, f);
                });
            });
        }

        return marker;
    };

    GMaps.prototype.addMarker = function(options) {
        var marker;
        if(options.hasOwnProperty('gm_accessors_')) {
            // Native google.maps.Marker object
            marker = options;
        }
        else {
            if ((options.hasOwnProperty('lat') && options.hasOwnProperty('lng')) || options.position) {
                marker = this.createMarker(options);
            }
            else {
                throw 'No latitude or longitude defined.';
            }
        }

        marker.setMap(this.map);

        if(this.markerClusterer) {
            this.markerClusterer.addMarker(marker);
        }

        this.markers.push(marker);

        GMaps.fire('marker_added', marker, this);

        return marker;
    };

    GMaps.prototype.addMarkers = function(array) {
        for (var i = 0, marker; marker=array[i]; i++) {
            this.addMarker(marker);
        }

        return this.markers;
    };

    GMaps.prototype.hideInfoWindows = function() {
        for (var i = 0, marker; marker = this.markers[i]; i++){
            if (marker.infoWindow) {
                marker.infoWindow.close();
            }
        }
    };

    GMaps.prototype.removeMarker = function(marker) {
        for (var i = 0; i < this.markers.length; i++) {
            if (this.markers[i] === marker) {
                this.markers[i].setMap(null);
                this.markers.splice(i, 1);

                if(this.markerClusterer) {
                    this.markerClusterer.removeMarker(marker);
                }

                GMaps.fire('marker_removed', marker, this);

                break;
            }
        }

        return marker;
    };

    GMaps.prototype.removeMarkers = function (collection) {
        var new_markers = [];

        if (typeof collection == 'undefined') {
            for (var i = 0; i < this.markers.length; i++) {
                this.markers[i].setMap(null);
            }

            this.markers = new_markers;
        }
        else {
            for (var i = 0; i < collection.length; i++) {
                if (this.markers.indexOf(collection[i]) > -1) {
                    this.markers[i].setMap(null);
                }
            }

            for (var i = 0; i < this.markers.length; i++) {
                if (this.markers[i].getMap() != null) {
                    new_markers.push(this.markers[i]);
                }
            }

            this.markers = new_markers;
        }
    };

    GMaps.prototype.drawOverlay = function(options) {
        var overlay = new google.maps.OverlayView(),
            auto_show = true;

        overlay.setMap(this.map);

        if (options.auto_show != null) {
            auto_show = options.auto_show;
        }

        overlay.onAdd = function() {
            var el = document.createElement('div');

            el.style.borderStyle = "none";
            el.style.borderWidth = "0px";
            el.style.position = "absolute";
            el.style.zIndex = 100;
            el.innerHTML = options.content;

            overlay.el = el;

            if (!options.layer) {
                options.layer = 'overlayLayer';
            }

            var panes = this.getPanes(),
                overlayLayer = panes[options.layer],
                stop_overlay_events = ['contextmenu', 'DOMMouseScroll', 'dblclick', 'mousedown'];

            overlayLayer.appendChild(el);

            for (var ev = 0; ev < stop_overlay_events.length; ev++) {
                (function(object, name) {
                    google.maps.event.addDomListener(object, name, function(e){
                        if (navigator.userAgent.toLowerCase().indexOf('msie') != -1 && document.all) {
                            e.cancelBubble = true;
                            e.returnValue = false;
                        }
                        else {
                            e.stopPropagation();
                        }
                    });
                })(el, stop_overlay_events[ev]);
            }

            if (options.click) {
                google.maps.event.addDomListener(overlay.el, 'click', function() {
                    options.click.apply(overlay, [overlay]);
                });
            }

            google.maps.event.trigger(this, 'ready');
        };

        overlay.draw = function() {
            var projection = this.getProjection(),
                pixel = projection.fromLatLngToDivPixel(new google.maps.LatLng(options.lat, options.lng));

            options.horizontalOffset = options.horizontalOffset || 0;
            options.verticalOffset = options.verticalOffset || 0;

            var el = overlay.el,
                content = el.children[0],
                content_height = content.clientHeight,
                content_width = content.clientWidth;

            switch (options.verticalAlign) {
                case 'top':
                    el.style.top = (pixel.y - content_height + options.verticalOffset) + 'px';
                    break;
                default:
                case 'middle':
                    el.style.top = (pixel.y - (content_height / 2) + options.verticalOffset) + 'px';
                    break;
                case 'bottom':
                    el.style.top = (pixel.y + options.verticalOffset) + 'px';
                    break;
            }

            switch (options.horizontalAlign) {
                case 'left':
                    el.style.left = (pixel.x - content_width + options.horizontalOffset) + 'px';
                    break;
                default:
                case 'center':
                    el.style.left = (pixel.x - (content_width / 2) + options.horizontalOffset) + 'px';
                    break;
                case 'right':
                    el.style.left = (pixel.x + options.horizontalOffset) + 'px';
                    break;
            }

            el.style.display = auto_show ? 'block' : 'none';

            if (!auto_show) {
                options.show.apply(this, [el]);
            }
        };

        overlay.onRemove = function() {
            var el = overlay.el;

            if (options.remove) {
                options.remove.apply(this, [el]);
            }
            else {
                overlay.el.parentNode.removeChild(overlay.el);
                overlay.el = null;
            }
        };

        this.overlays.push(overlay);
        return overlay;
    };

    GMaps.prototype.removeOverlay = function(overlay) {
        for (var i = 0; i < this.overlays.length; i++) {
            if (this.overlays[i] === overlay) {
                this.overlays[i].setMap(null);
                this.overlays.splice(i, 1);

                break;
            }
        }
    };

    GMaps.prototype.removeOverlays = function() {
        for (var i = 0, item; item = this.overlays[i]; i++) {
            item.setMap(null);
        }

        this.overlays = [];
    };

    GMaps.prototype.drawPolyline = function(options) {
        var path = [],
            points = options.path;

        if (points.length) {
            if (points[0][0] === undefined) {
                path = points;
            }
            else {
                for (var i=0, latlng; latlng=points[i]; i++) {
                    path.push(new google.maps.LatLng(latlng[0], latlng[1]));
                }
            }
        }

        var polyline_options = {
            map: this.map,
            path: path,
            strokeColor: options.strokeColor,
            strokeOpacity: options.strokeOpacity,
            strokeWeight: options.strokeWeight,
            geodesic: options.geodesic,
            clickable: true,
            editable: false,
            visible: true
        };

        if (options.hasOwnProperty("clickable")) {
            polyline_options.clickable = options.clickable;
        }

        if (options.hasOwnProperty("editable")) {
            polyline_options.editable = options.editable;
        }

        if (options.hasOwnProperty("icons")) {
            polyline_options.icons = options.icons;
        }

        if (options.hasOwnProperty("zIndex")) {
            polyline_options.zIndex = options.zIndex;
        }

        var polyline = new google.maps.Polyline(polyline_options);

        var polyline_events = ['click', 'dblclick', 'mousedown', 'mousemove', 'mouseout', 'mouseover', 'mouseup', 'rightclick'];

        for (var ev = 0; ev < polyline_events.length; ev++) {
            (function(object, name) {
                if (options[name]) {
                    google.maps.event.addListener(object, name, function(e){
                        options[name].apply(this, [e]);
                    });
                }
            })(polyline, polyline_events[ev]);
        }

        this.polylines.push(polyline);

        GMaps.fire('polyline_added', polyline, this);

        return polyline;
    };

    GMaps.prototype.removePolyline = function(polyline) {
        for (var i = 0; i < this.polylines.length; i++) {
            if (this.polylines[i] === polyline) {
                this.polylines[i].setMap(null);
                this.polylines.splice(i, 1);

                GMaps.fire('polyline_removed', polyline, this);

                break;
            }
        }
    };

    GMaps.prototype.removePolylines = function() {
        for (var i = 0, item; item = this.polylines[i]; i++) {
            item.setMap(null);
        }

        this.polylines = [];
    };

    GMaps.prototype.drawCircle = function(options) {
        options =  extend_object({
            map: this.map,
            center: new google.maps.LatLng(options.lat, options.lng)
        }, options);

        delete options.lat;
        delete options.lng;

        var polygon = new google.maps.Circle(options),
            polygon_events = ['click', 'dblclick', 'mousedown', 'mousemove', 'mouseout', 'mouseover', 'mouseup', 'rightclick'];

        for (var ev = 0; ev < polygon_events.length; ev++) {
            (function(object, name) {
                if (options[name]) {
                    google.maps.event.addListener(object, name, function(e){
                        options[name].apply(this, [e]);
                    });
                }
            })(polygon, polygon_events[ev]);
        }

        this.polygons.push(polygon);

        return polygon;
    };

    GMaps.prototype.drawRectangle = function(options) {
        options = extend_object({
            map: this.map
        }, options);

        var latLngBounds = new google.maps.LatLngBounds(
            new google.maps.LatLng(options.bounds[0][0], options.bounds[0][1]),
            new google.maps.LatLng(options.bounds[1][0], options.bounds[1][1])
        );

        options.bounds = latLngBounds;

        var polygon = new google.maps.Rectangle(options),
            polygon_events = ['click', 'dblclick', 'mousedown', 'mousemove', 'mouseout', 'mouseover', 'mouseup', 'rightclick'];

        for (var ev = 0; ev < polygon_events.length; ev++) {
            (function(object, name) {
                if (options[name]) {
                    google.maps.event.addListener(object, name, function(e){
                        options[name].apply(this, [e]);
                    });
                }
            })(polygon, polygon_events[ev]);
        }

        this.polygons.push(polygon);

        return polygon;
    };

    GMaps.prototype.drawPolygon = function(options) {
        var useGeoJSON = false;

        if(options.hasOwnProperty("useGeoJSON")) {
            useGeoJSON = options.useGeoJSON;
        }

        delete options.useGeoJSON;

        options = extend_object({
            map: this.map
        }, options);

        if (useGeoJSON == false) {
            options.paths = [options.paths.slice(0)];
        }

        if (options.paths.length > 0) {
            if (options.paths[0].length > 0) {
                options.paths = array_flat(array_map(options.paths, arrayToLatLng, useGeoJSON));
            }
        }

        var polygon = new google.maps.Polygon(options),
            polygon_events = ['click', 'dblclick', 'mousedown', 'mousemove', 'mouseout', 'mouseover', 'mouseup', 'rightclick'];

        for (var ev = 0; ev < polygon_events.length; ev++) {
            (function(object, name) {
                if (options[name]) {
                    google.maps.event.addListener(object, name, function(e){
                        options[name].apply(this, [e]);
                    });
                }
            })(polygon, polygon_events[ev]);
        }

        this.polygons.push(polygon);

        GMaps.fire('polygon_added', polygon, this);

        return polygon;
    };

    GMaps.prototype.removePolygon = function(polygon) {
        for (var i = 0; i < this.polygons.length; i++) {
            if (this.polygons[i] === polygon) {
                this.polygons[i].setMap(null);
                this.polygons.splice(i, 1);

                GMaps.fire('polygon_removed', polygon, this);

                break;
            }
        }
    };

    GMaps.prototype.removePolygons = function() {
        for (var i = 0, item; item = this.polygons[i]; i++) {
            item.setMap(null);
        }

        this.polygons = [];
    };

    GMaps.prototype.getFromFusionTables = function(options) {
        var events = options.events;

        delete options.events;

        var fusion_tables_options = options,
            layer = new google.maps.FusionTablesLayer(fusion_tables_options);

        for (var ev in events) {
            (function(object, name) {
                google.maps.event.addListener(object, name, function(e) {
                    events[name].apply(this, [e]);
                });
            })(layer, ev);
        }

        this.layers.push(layer);

        return layer;
    };

    GMaps.prototype.loadFromFusionTables = function(options) {
        var layer = this.getFromFusionTables(options);
        layer.setMap(this.map);

        return layer;
    };

    GMaps.prototype.getFromKML = function(options) {
        var url = options.url,
            events = options.events;

        delete options.url;
        delete options.events;

        var kml_options = options,
            layer = new google.maps.KmlLayer(url, kml_options);

        for (var ev in events) {
            (function(object, name) {
                google.maps.event.addListener(object, name, function(e) {
                    events[name].apply(this, [e]);
                });
            })(layer, ev);
        }

        this.layers.push(layer);

        return layer;
    };

    GMaps.prototype.loadFromKML = function(options) {
        var layer = this.getFromKML(options);
        layer.setMap(this.map);

        return layer;
    };

    GMaps.prototype.addLayer = function(layerName, options) {
        //var default_layers = ['weather', 'clouds', 'traffic', 'transit', 'bicycling', 'panoramio', 'places'];
        options = options || {};
        var layer;

        switch(layerName) {
            case 'weather': this.singleLayers.weather = layer = new google.maps.weather.WeatherLayer();
                break;
            case 'clouds': this.singleLayers.clouds = layer = new google.maps.weather.CloudLayer();
                break;
            case 'traffic': this.singleLayers.traffic = layer = new google.maps.TrafficLayer();
                break;
            case 'transit': this.singleLayers.transit = layer = new google.maps.TransitLayer();
                break;
            case 'bicycling': this.singleLayers.bicycling = layer = new google.maps.BicyclingLayer();
                break;
            case 'panoramio':
                this.singleLayers.panoramio = layer = new google.maps.panoramio.PanoramioLayer();
                layer.setTag(options.filter);
                delete options.filter;

                //click event
                if (options.click) {
                    google.maps.event.addListener(layer, 'click', function(event) {
                        options.click(event);
                        delete options.click;
                    });
                }
                break;
            case 'places':
                this.singleLayers.places = layer = new google.maps.places.PlacesService(this.map);

                //search, nearbySearch, radarSearch callback, Both are the same
                if (options.search || options.nearbySearch || options.radarSearch) {
                    var placeSearchRequest  = {
                        bounds : options.bounds || null,
                        keyword : options.keyword || null,
                        location : options.location || null,
                        name : options.name || null,
                        radius : options.radius || null,
                        rankBy : options.rankBy || null,
                        types : options.types || null
                    };

                    if (options.radarSearch) {
                        layer.radarSearch(placeSearchRequest, options.radarSearch);
                    }

                    if (options.search) {
                        layer.search(placeSearchRequest, options.search);
                    }

                    if (options.nearbySearch) {
                        layer.nearbySearch(placeSearchRequest, options.nearbySearch);
                    }
                }

                //textSearch callback
                if (options.textSearch) {
                    var textSearchRequest  = {
                        bounds : options.bounds || null,
                        location : options.location || null,
                        query : options.query || null,
                        radius : options.radius || null
                    };

                    layer.textSearch(textSearchRequest, options.textSearch);
                }
                break;
        }

        if (layer !== undefined) {
            if (typeof layer.setOptions == 'function') {
                layer.setOptions(options);
            }
            if (typeof layer.setMap == 'function') {
                layer.setMap(this.map);
            }

            return layer;
        }
    };

    GMaps.prototype.removeLayer = function(layer) {
        if (typeof(layer) == "string" && this.singleLayers[layer] !== undefined) {
            this.singleLayers[layer].setMap(null);

            delete this.singleLayers[layer];
        }
        else {
            for (var i = 0; i < this.layers.length; i++) {
                if (this.layers[i] === layer) {
                    this.layers[i].setMap(null);
                    this.layers.splice(i, 1);

                    break;
                }
            }
        }
    };

    var travelMode, unitSystem;

    GMaps.prototype.getRoutes = function(options) {
        switch (options.travelMode) {
            case 'bicycling':
                travelMode = google.maps.TravelMode.BICYCLING;
                break;
            case 'transit':
                travelMode = google.maps.TravelMode.TRANSIT;
                break;
            case 'driving':
                travelMode = google.maps.TravelMode.DRIVING;
                break;
            default:
                travelMode = google.maps.TravelMode.WALKING;
                break;
        }

        if (options.unitSystem === 'imperial') {
            unitSystem = google.maps.UnitSystem.IMPERIAL;
        }
        else {
            unitSystem = google.maps.UnitSystem.METRIC;
        }

        var base_options = {
                avoidHighways: false,
                avoidTolls: false,
                optimizeWaypoints: false,
                waypoints: []
            },
            request_options =  extend_object(base_options, options);

        request_options.origin = /string/.test(typeof options.origin) ? options.origin : new google.maps.LatLng(options.origin[0], options.origin[1]);
        request_options.destination = /string/.test(typeof options.destination) ? options.destination : new google.maps.LatLng(options.destination[0], options.destination[1]);
        request_options.travelMode = travelMode;
        request_options.unitSystem = unitSystem;

        delete request_options.callback;
        delete request_options.error;

        var self = this,
            service = new google.maps.DirectionsService();

        service.route(request_options, function(result, status) {
            if (status === google.maps.DirectionsStatus.OK) {
                for (var r in result.routes) {
                    if (result.routes.hasOwnProperty(r)) {
                        self.routes.push(result.routes[r]);
                    }
                }

                if (options.callback) {
                    options.callback(self.routes);
                }
            }
            else {
                if (options.error) {
                    options.error(result, status);
                }
            }
        });
    };

    GMaps.prototype.removeRoutes = function() {
        this.routes = [];
    };

    GMaps.prototype.getElevations = function(options) {
        options = extend_object({
            locations: [],
            path : false,
            samples : 256
        }, options);

        if (options.locations.length > 0) {
            if (options.locations[0].length > 0) {
                options.locations = array_flat(array_map([options.locations], arrayToLatLng,  false));
            }
        }

        var callback = options.callback;
        delete options.callback;

        var service = new google.maps.ElevationService();

        //location request
        if (!options.path) {
            delete options.path;
            delete options.samples;

            service.getElevationForLocations(options, function(result, status) {
                if (callback && typeof(callback) === "function") {
                    callback(result, status);
                }
            });
            //path request
        } else {
            var pathRequest = {
                path : options.locations,
                samples : options.samples
            };

            service.getElevationAlongPath(pathRequest, function(result, status) {
                if (callback && typeof(callback) === "function") {
                    callback(result, status);
                }
            });
        }
    };

    GMaps.prototype.cleanRoute = GMaps.prototype.removePolylines;

    GMaps.prototype.drawRoute = function(options) {
        var self = this;

        this.getRoutes({
            origin: options.origin,
            destination: options.destination,
            travelMode: options.travelMode,
            waypoints: options.waypoints,
            unitSystem: options.unitSystem,
            error: options.error,
            callback: function(e) {
                if (e.length > 0) {
                    self.drawPolyline({
                        path: e[e.length - 1].overview_path,
                        strokeColor: options.strokeColor,
                        strokeOpacity: options.strokeOpacity,
                        strokeWeight: options.strokeWeight
                    });

                    if (options.callback) {
                        options.callback(e[e.length - 1]);
                    }
                }
            }
        });
    };

    GMaps.prototype.travelRoute = function(options) {
        if (options.origin && options.destination) {
            this.getRoutes({
                origin: options.origin,
                destination: options.destination,
                travelMode: options.travelMode,
                waypoints : options.waypoints,
                unitSystem: options.unitSystem,
                error: options.error,
                callback: function(e) {
                    //start callback
                    if (e.length > 0 && options.start) {
                        options.start(e[e.length - 1]);
                    }

                    //step callback
                    if (e.length > 0 && options.step) {
                        var route = e[e.length - 1];
                        if (route.legs.length > 0) {
                            var steps = route.legs[0].steps;
                            for (var i=0, step; step=steps[i]; i++) {
                                step.step_number = i;
                                options.step(step, (route.legs[0].steps.length - 1));
                            }
                        }
                    }

                    //end callback
                    if (e.length > 0 && options.end) {
                        options.end(e[e.length - 1]);
                    }
                }
            });
        }
        else if (options.route) {
            if (options.route.legs.length > 0) {
                var steps = options.route.legs[0].steps;
                for (var i=0, step; step=steps[i]; i++) {
                    step.step_number = i;
                    options.step(step);
                }
            }
        }
    };

    GMaps.prototype.drawSteppedRoute = function(options) {
        var self = this;

        if (options.origin && options.destination) {
            this.getRoutes({
                origin: options.origin,
                destination: options.destination,
                travelMode: options.travelMode,
                waypoints : options.waypoints,
                error: options.error,
                callback: function(e) {
                    //start callback
                    if (e.length > 0 && options.start) {
                        options.start(e[e.length - 1]);
                    }

                    //step callback
                    if (e.length > 0 && options.step) {
                        var route = e[e.length - 1];
                        if (route.legs.length > 0) {
                            var steps = route.legs[0].steps;
                            for (var i=0, step; step=steps[i]; i++) {
                                step.step_number = i;
                                self.drawPolyline({
                                    path: step.path,
                                    strokeColor: options.strokeColor,
                                    strokeOpacity: options.strokeOpacity,
                                    strokeWeight: options.strokeWeight
                                });
                                options.step(step, (route.legs[0].steps.length - 1));
                            }
                        }
                    }

                    //end callback
                    if (e.length > 0 && options.end) {
                        options.end(e[e.length - 1]);
                    }
                }
            });
        }
        else if (options.route) {
            if (options.route.legs.length > 0) {
                var steps = options.route.legs[0].steps;
                for (var i=0, step; step=steps[i]; i++) {
                    step.step_number = i;
                    self.drawPolyline({
                        path: step.path,
                        strokeColor: options.strokeColor,
                        strokeOpacity: options.strokeOpacity,
                        strokeWeight: options.strokeWeight
                    });
                    options.step(step);
                }
            }
        }
    };

    GMaps.Route = function(options) {
        this.origin = options.origin;
        this.destination = options.destination;
        this.waypoints = options.waypoints;

        this.map = options.map;
        this.route = options.route;
        this.step_count = 0;
        this.steps = this.route.legs[0].steps;
        this.steps_length = this.steps.length;

        this.polyline = this.map.drawPolyline({
            path: new google.maps.MVCArray(),
            strokeColor: options.strokeColor,
            strokeOpacity: options.strokeOpacity,
            strokeWeight: options.strokeWeight
        }).getPath();
    };

    GMaps.Route.prototype.getRoute = function(options) {
        var self = this;

        this.map.getRoutes({
            origin : this.origin,
            destination : this.destination,
            travelMode : options.travelMode,
            waypoints : this.waypoints || [],
            error: options.error,
            callback : function() {
                self.route = e[0];

                if (options.callback) {
                    options.callback.call(self);
                }
            }
        });
    };

    GMaps.Route.prototype.back = function() {
        if (this.step_count > 0) {
            this.step_count--;
            var path = this.route.legs[0].steps[this.step_count].path;

            for (var p in path){
                if (path.hasOwnProperty(p)){
                    this.polyline.pop();
                }
            }
        }
    };

    GMaps.Route.prototype.forward = function() {
        if (this.step_count < this.steps_length) {
            var path = this.route.legs[0].steps[this.step_count].path;

            for (var p in path){
                if (path.hasOwnProperty(p)){
                    this.polyline.push(path[p]);
                }
            }
            this.step_count++;
        }
    };

    GMaps.prototype.checkGeofence = function(lat, lng, fence) {
        return fence.containsLatLng(new google.maps.LatLng(lat, lng));
    };

    GMaps.prototype.checkMarkerGeofence = function(marker, outside_callback) {
        if (marker.fences) {
            for (var i = 0, fence; fence = marker.fences[i]; i++) {
                var pos = marker.getPosition();
                if (!this.checkGeofence(pos.lat(), pos.lng(), fence)) {
                    outside_callback(marker, fence);
                }
            }
        }
    };

    GMaps.prototype.toImage = function(options) {
        var options = options || {},
            static_map_options = {};

        static_map_options['size'] = options['size'] || [this.el.clientWidth, this.el.clientHeight];
        static_map_options['lat'] = this.getCenter().lat();
        static_map_options['lng'] = this.getCenter().lng();

        if (this.markers.length > 0) {
            static_map_options['markers'] = [];

            for (var i = 0; i < this.markers.length; i++) {
                static_map_options['markers'].push({
                    lat: this.markers[i].getPosition().lat(),
                    lng: this.markers[i].getPosition().lng()
                });
            }
        }

        if (this.polylines.length > 0) {
            var polyline = this.polylines[0];

            static_map_options['polyline'] = {};
            static_map_options['polyline']['path'] = google.maps.geometry.encoding.encodePath(polyline.getPath());
            static_map_options['polyline']['strokeColor'] = polyline.strokeColor
            static_map_options['polyline']['strokeOpacity'] = polyline.strokeOpacity
            static_map_options['polyline']['strokeWeight'] = polyline.strokeWeight
        }

        return GMaps.staticMapURL(static_map_options);
    };

    GMaps.staticMapURL = function(options){
        var parameters = [],
            data,
            static_root = 'http://maps.googleapis.com/maps/api/staticmap';

        if (options.url) {
            static_root = options.url;
            delete options.url;
        }

        static_root += '?';

        var markers = options.markers;

        delete options.markers;

        if (!markers && options.marker) {
            markers = [options.marker];
            delete options.marker;
        }

        var styles = options.styles;

        delete options.styles;

        var polyline = options.polyline;
        delete options.polyline;

        /** Map options **/
        if (options.center) {
            parameters.push('center=' + options.center);
            delete options.center;
        }
        else if (options.address) {
            parameters.push('center=' + options.address);
            delete options.address;
        }
        else if (options.lat) {
            parameters.push(['center=', options.lat, ',', options.lng].join(''));
            delete options.lat;
            delete options.lng;
        }
        else if (options.visible) {
            var visible = encodeURI(options.visible.join('|'));
            parameters.push('visible=' + visible);
        }

        var size = options.size;
        if (size) {
            if (size.join) {
                size = size.join('x');
            }
            delete options.size;
        }
        else {
            size = '630x300';
        }
        parameters.push('size=' + size);

        if (!options.zoom && options.zoom !== false) {
            options.zoom = 15;
        }

        var sensor = options.hasOwnProperty('sensor') ? !!options.sensor : true;
        delete options.sensor;
        parameters.push('sensor=' + sensor);

        for (var param in options) {
            if (options.hasOwnProperty(param)) {
                parameters.push(param + '=' + options[param]);
            }
        }

        /** Markers **/
        if (markers) {
            var marker, loc;

            for (var i=0; data=markers[i]; i++) {
                marker = [];

                if (data.size && data.size !== 'normal') {
                    marker.push('size:' + data.size);
                    delete data.size;
                }
                else if (data.icon) {
                    marker.push('icon:' + encodeURI(data.icon));
                    delete data.icon;
                }

                if (data.color) {
                    marker.push('color:' + data.color.replace('#', '0x'));
                    delete data.color;
                }

                if (data.label) {
                    marker.push('label:' + data.label[0].toUpperCase());
                    delete data.label;
                }

                loc = (data.address ? data.address : data.lat + ',' + data.lng);
                delete data.address;
                delete data.lat;
                delete data.lng;

                for(var param in data){
                    if (data.hasOwnProperty(param)) {
                        marker.push(param + ':' + data[param]);
                    }
                }

                if (marker.length || i === 0) {
                    marker.push(loc);
                    marker = marker.join('|');
                    parameters.push('markers=' + encodeURI(marker));
                }
                // New marker without styles
                else {
                    marker = parameters.pop() + encodeURI('|' + loc);
                    parameters.push(marker);
                }
            }
        }

        /** Map Styles **/
        if (styles) {
            for (var i = 0; i < styles.length; i++) {
                var styleRule = [];
                if (styles[i].featureType){
                    styleRule.push('feature:' + styles[i].featureType.toLowerCase());
                }

                if (styles[i].elementType) {
                    styleRule.push('element:' + styles[i].elementType.toLowerCase());
                }

                for (var j = 0; j < styles[i].stylers.length; j++) {
                    for (var p in styles[i].stylers[j]) {
                        var ruleArg = styles[i].stylers[j][p];
                        if (p == 'hue' || p == 'color') {
                            ruleArg = '0x' + ruleArg.substring(1);
                        }
                        styleRule.push(p + ':' + ruleArg);
                    }
                }

                var rule = styleRule.join('|');
                if (rule != '') {
                    parameters.push('style=' + rule);
                }
            }
        }

        /** Polylines **/
        function parseColor(color, opacity) {
            if (color[0] === '#'){
                color = color.replace('#', '0x');

                if (opacity) {
                    opacity = parseFloat(opacity);
                    opacity = Math.min(1, Math.max(opacity, 0));
                    if (opacity === 0) {
                        return '0x00000000';
                    }
                    opacity = (opacity * 255).toString(16);
                    if (opacity.length === 1) {
                        opacity += opacity;
                    }

                    color = color.slice(0,8) + opacity;
                }
            }
            return color;
        }

        if (polyline) {
            data = polyline;
            polyline = [];

            if (data.strokeWeight) {
                polyline.push('weight:' + parseInt(data.strokeWeight, 10));
            }

            if (data.strokeColor) {
                var color = parseColor(data.strokeColor, data.strokeOpacity);
                polyline.push('color:' + color);
            }

            if (data.fillColor) {
                var fillcolor = parseColor(data.fillColor, data.fillOpacity);
                polyline.push('fillcolor:' + fillcolor);
            }

            var path = data.path;
            if (path.join) {
                for (var j=0, pos; pos=path[j]; j++) {
                    polyline.push(pos.join(','));
                }
            }
            else {
                polyline.push('enc:' + path);
            }

            polyline = polyline.join('|');
            parameters.push('path=' + encodeURI(polyline));
        }

        /** Retina support **/
        var dpi = window.devicePixelRatio || 1;
        parameters.push('scale=' + dpi);

        parameters = parameters.join('&');
        return static_root + parameters;
    };

    GMaps.prototype.addMapType = function(mapTypeId, options) {
        if (options.hasOwnProperty("getTileUrl") && typeof(options["getTileUrl"]) == "function") {
            options.tileSize = options.tileSize || new google.maps.Size(256, 256);

            var mapType = new google.maps.ImageMapType(options);

            this.map.mapTypes.set(mapTypeId, mapType);
        }
        else {
            throw "'getTileUrl' function required.";
        }
    };

    GMaps.prototype.addOverlayMapType = function(options) {
        if (options.hasOwnProperty("getTile") && typeof(options["getTile"]) == "function") {
            var overlayMapTypeIndex = options.index;

            delete options.index;

            this.map.overlayMapTypes.insertAt(overlayMapTypeIndex, options);
        }
        else {
            throw "'getTile' function required.";
        }
    };

    GMaps.prototype.removeOverlayMapType = function(overlayMapTypeIndex) {
        this.map.overlayMapTypes.removeAt(overlayMapTypeIndex);
    };

    GMaps.prototype.addStyle = function(options) {
        var styledMapType = new google.maps.StyledMapType(options.styles, { name: options.styledMapName });

        this.map.mapTypes.set(options.mapTypeId, styledMapType);
    };

    GMaps.prototype.setStyle = function(mapTypeId) {
        this.map.setMapTypeId(mapTypeId);
    };

    GMaps.prototype.createPanorama = function(streetview_options) {
        if (!streetview_options.hasOwnProperty('lat') || !streetview_options.hasOwnProperty('lng')) {
            streetview_options.lat = this.getCenter().lat();
            streetview_options.lng = this.getCenter().lng();
        }

        this.panorama = GMaps.createPanorama(streetview_options);

        this.map.setStreetView(this.panorama);

        return this.panorama;
    };

    GMaps.createPanorama = function(options) {
        var el = getElementById(options.el, options.context);

        options.position = new google.maps.LatLng(options.lat, options.lng);

        delete options.el;
        delete options.context;
        delete options.lat;
        delete options.lng;

        var streetview_events = ['closeclick', 'links_changed', 'pano_changed', 'position_changed', 'pov_changed', 'resize', 'visible_changed'],
            streetview_options = extend_object({visible : true}, options);

        for (var i = 0; i < streetview_events.length; i++) {
            delete streetview_options[streetview_events[i]];
        }

        var panorama = new google.maps.StreetViewPanorama(el, streetview_options);

        for (var i = 0; i < streetview_events.length; i++) {
            (function(object, name) {
                if (options[name]) {
                    google.maps.event.addListener(object, name, function(){
                        options[name].apply(this);
                    });
                }
            })(panorama, streetview_events[i]);
        }

        return panorama;
    };

    GMaps.prototype.on = function(event_name, handler) {
        return GMaps.on(event_name, this, handler);
    };

    GMaps.prototype.off = function(event_name) {
        GMaps.off(event_name, this);
    };

    GMaps.custom_events = ['marker_added', 'marker_removed', 'polyline_added', 'polyline_removed', 'polygon_added', 'polygon_removed', 'geolocated', 'geolocation_failed'];

    GMaps.on = function(event_name, object, handler) {
        if (GMaps.custom_events.indexOf(event_name) == -1) {
            if(object instanceof GMaps) object = object.map;
            return google.maps.event.addListener(object, event_name, handler);
        }
        else {
            var registered_event = {
                handler : handler,
                eventName : event_name
            };

            object.registered_events[event_name] = object.registered_events[event_name] || [];
            object.registered_events[event_name].push(registered_event);

            return registered_event;
        }
    };

    GMaps.off = function(event_name, object) {
        if (GMaps.custom_events.indexOf(event_name) == -1) {
            if(object instanceof GMaps) object = object.map;
            google.maps.event.clearListeners(object, event_name);
        }
        else {
            object.registered_events[event_name] = [];
        }
    };

    GMaps.fire = function(event_name, object, scope) {
        if (GMaps.custom_events.indexOf(event_name) == -1) {
            google.maps.event.trigger(object, event_name, Array.prototype.slice.apply(arguments).slice(2));
        }
        else {
            if(event_name in scope.registered_events) {
                var firing_events = scope.registered_events[event_name];

                for(var i = 0; i < firing_events.length; i++) {
                    (function(handler, scope, object) {
                        handler.apply(scope, [object]);
                    })(firing_events[i]['handler'], scope, object);
                }
            }
        }
    };

    GMaps.geolocate = function(options) {
        var complete_callback = options.always || options.complete;

        if (navigator.geolocation) {
            navigator.geolocation.getCurrentPosition(function(position) {
                options.success(position);

                if (complete_callback) {
                    complete_callback();
                }
            }, function(error) {
                options.error(error);

                if (complete_callback) {
                    complete_callback();
                }
            }, options.options);
        }
        else {
            options.not_supported();

            if (complete_callback) {
                complete_callback();
            }
        }
    };

    GMaps.geocode = function(options) {
        this.geocoder = new google.maps.Geocoder();
        var callback = options.callback;
        if (options.hasOwnProperty('lat') && options.hasOwnProperty('lng')) {
            options.latLng = new google.maps.LatLng(options.lat, options.lng);
        }

        delete options.lat;
        delete options.lng;
        delete options.callback;

        this.geocoder.geocode(options, function(results, status) {
            callback(results, status);
        });
    };

//==========================
// Polygon containsLatLng
// https://github.com/tparkin/Google-Maps-Point-in-Polygon
// Poygon getBounds extension - google-maps-extensions
// http://code.google.com/p/google-maps-extensions/source/browse/google.maps.Polygon.getBounds.js
    if (!google.maps.Polygon.prototype.getBounds) {
        google.maps.Polygon.prototype.getBounds = function(latLng) {
            var bounds = new google.maps.LatLngBounds();
            var paths = this.getPaths();
            var path;

            for (var p = 0; p < paths.getLength(); p++) {
                path = paths.getAt(p);
                for (var i = 0; i < path.getLength(); i++) {
                    bounds.extend(path.getAt(i));
                }
            }

            return bounds;
        };
    }

    if (!google.maps.Polygon.prototype.containsLatLng) {
        // Polygon containsLatLng - method to determine if a latLng is within a polygon
        google.maps.Polygon.prototype.containsLatLng = function(latLng) {
            // Exclude points outside of bounds as there is no way they are in the poly
            var bounds = this.getBounds();

            if (bounds !== null && !bounds.contains(latLng)) {
                return false;
            }

            // Raycast point in polygon method
            var inPoly = false;

            var numPaths = this.getPaths().getLength();
            for (var p = 0; p < numPaths; p++) {
                var path = this.getPaths().getAt(p);
                var numPoints = path.getLength();
                var j = numPoints - 1;

                for (var i = 0; i < numPoints; i++) {
                    var vertex1 = path.getAt(i);
                    var vertex2 = path.getAt(j);

                    if (vertex1.lng() < latLng.lng() && vertex2.lng() >= latLng.lng() || vertex2.lng() < latLng.lng() && vertex1.lng() >= latLng.lng()) {
                        if (vertex1.lat() + (latLng.lng() - vertex1.lng()) / (vertex2.lng() - vertex1.lng()) * (vertex2.lat() - vertex1.lat()) < latLng.lat()) {
                            inPoly = !inPoly;
                        }
                    }

                    j = i;
                }
            }

            return inPoly;
        };
    }

    google.maps.LatLngBounds.prototype.containsLatLng = function(latLng) {
        return this.contains(latLng);
    };

    google.maps.Marker.prototype.setFences = function(fences) {
        this.fences = fences;
    };

    google.maps.Marker.prototype.addFence = function(fence) {
        this.fences.push(fence);
    };

    google.maps.Marker.prototype.getId = function() {
        return this['__gm_id'];
    };

//==========================
// Array indexOf
// https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Array/indexOf
    if (!Array.prototype.indexOf) {
        Array.prototype.indexOf = function (searchElement /*, fromIndex */ ) {
            "use strict";
            if (this == null) {
                throw new TypeError();
            }
            var t = Object(this);
            var len = t.length >>> 0;
            if (len === 0) {
                return -1;
            }
            var n = 0;
            if (arguments.length > 1) {
                n = Number(arguments[1]);
                if (n != n) { // shortcut for verifying if it's NaN
                    n = 0;
                } else if (n != 0 && n != Infinity && n != -Infinity) {
                    n = (n > 0 || -1) * Math.floor(Math.abs(n));
                }
            }
            if (n >= len) {
                return -1;
            }
            var k = n >= 0 ? n : Math.max(len - Math.abs(n), 0);
            for (; k < len; k++) {
                if (k in t && t[k] === searchElement) {
                    return k;
                }
            }
            return -1;
        }
    }

    return GMaps;
}));