/**
* Maplace.js
*
* Copyright (c) 2013 Daniele Moraschi
* Licensed under the MIT license
* For all details and documentation:
* http://maplacejs.com
*
* @version  @VERSION
* @preserve
*/

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

}(this, function($) {
    'use strict';

    var html_dropdown,
        html_ullist;

    //dropdown menu type
    html_dropdown = {
        activateCurrent: function(index) {
            this.html_element.find('select').val(index);
        },

        getHtml: function() {
            var self = this,
                html = '',
                title,
                a;

            if (this.ln > 1) {
                html += '<select class="dropdown controls ' + this.o.controls_cssclass + '">';

                if (this.ShowOnMenu(this.view_all_key)) {
                    html += '<option value="' + this.view_all_key + '">' + this.o.view_all_text + '</option>';
                }

                for (a = 0; a < this.ln; a += 1) {
                    if (this.ShowOnMenu(a)) {
                        html += '<option value="' + (a + 1) + '">' + (this.o.locations[a].title || ('#' + (a + 1))) + '</option>';
                    }
                }
                html += '</select>';

                html = $(html).bind('change', function() {
                    self.ViewOnMap(this.value);
                });
            }

            title = this.o.controls_title;
            if (this.o.controls_title) {
                title = $('<div class="controls_title"></div>').css(this.o.controls_applycss ? {
                    fontWeight: 'bold',
                    fontSize: this.o.controls_on_map ? '12px' : 'inherit',
                    padding: '3px 10px 5px 0'
                } : {}).append(this.o.controls_title);
            }

            this.html_element = $('<div class="wrap_controls"></div>').append(title).append(html);

            return this.html_element;
        }
    };


    //ul list menu type
    html_ullist = {
        html_a: function(i, hash, ttl) {
            var self = this,
                index = hash || (i + 1),
                title = ttl || this.o.locations[i].title,
                el_a = $('<a data-load="' + index + '" id="ullist_a_' + index + '" href="#' + index + '" title="' + title + '"><span>' + (title || ('#' + (i + 1))) + '</span></a>');

            el_a.css(this.o.controls_applycss ? {
                color: '#666',
                display: 'block',
                padding: '5px',
                fontSize: this.o.controls_on_map ? '12px' : 'inherit',
                textDecoration: 'none'
            } : {});

            el_a.on('click', function(e) {
                e.preventDefault();
                var i = $(this).attr('data-load');
                self.ViewOnMap(i);
            });

            return el_a;
        },

        activateCurrent: function(index) {
            this.html_element.find('li').removeClass('active');
            this.html_element.find('#ullist_a_' + index).parent().addClass('active');
        },

        getHtml: function() {
            var html = $('<ul class=\'ullist controls ' + this.o.controls_cssclass + '\'></ul>').css(this.o.controls_applycss ? {
                margin: 0,
                padding: 0,
                listStyleType: 'none'
            } : {}),
                title, a;

            if (this.ShowOnMenu(this.view_all_key)) {
                html.append($('<li></li>').append(html_ullist.html_a.call(this, false, this.view_all_key, this.o.view_all_text)));
            }

            for (a = 0; a < this.ln; a++) {
                if (this.ShowOnMenu(a)) {
                    html.append($('<li></li>').append(html_ullist.html_a.call(this, a)));
                }
            }

            title = this.o.controls_title;
            if (this.o.controls_title) {
                title = $('<div class="controls_title"></div>').css(this.o.controls_applycss ? {
                    fontWeight: 'bold',
                    padding: '3px 10px 5px 0',
                    fontSize: this.o.controls_on_map ? '12px' : 'inherit'
                } : {}).append(this.o.controls_title);
            }

            this.html_element = $('<div class="wrap_controls"></div>').append(title).append(html);

            return this.html_element;
        }
    };


    /**
    * Create a new instance
    * @class Maplace
    * @constructor
    */
    function Maplace(args) {
        this.VERSION = '@VERSION';
        this.loaded = false;
        this.markers = [];
        this.circles = [];
        this.oMap = false;
        this.view_all_key = 'all';

        this.infowindow = null;
        this.maxZIndex = 0;
        this.ln = 0;
        this.oMap = false;
        this.oBounds = null;
        this.map_div = null;
        this.canvas_map = null;
        this.controls_wrapper = null;
        this.current_control = null;
        this.current_index = null;
        this.Polyline = null;
        this.Polygon = null;
        this.Fusion = null;
        this.directionsService = null;
        this.directionsDisplay = null;

        //default options
        this.o = {
            debug: false,
            map_div: '#gmap',
            controls_div: '#controls',
            generate_controls: true,
            controls_type: 'dropdown',
            controls_cssclass: '',
            controls_title: '',
            controls_on_map: true,
            controls_applycss: true,
            controls_position: google.maps.ControlPosition.RIGHT_TOP,
            type: 'marker',
            view_all: true,
            view_all_text: 'View All',
            pan_on_click: true,
            start: 0,
            locations: [],
            shared: {},
            map_options: {
                mapTypeId: google.maps.MapTypeId.ROADMAP
            },
            stroke_options: {
                strokeColor: '#0000FF',
                strokeOpacity: 0.8,
                strokeWeight: 2,
                fillColor: '#0000FF',
                fillOpacity: 0.4
            },
            directions_options: {
                travelMode: google.maps.TravelMode.DRIVING,
                unitSystem: google.maps.UnitSystem.METRIC,
                optimizeWaypoints: false,
                provideRouteAlternatives: false,
                avoidHighways: false,
                avoidTolls: false
            },
            circle_options: {
                radius: 100,
                visible: true
            },
            styles: {},
            fusion_options: {},
            directions_panel: null,
            draggable: false,
            editable: false,
            show_infowindows: true,
            show_markers: true,
            infowindow_type: 'bubble',
            listeners: {},

            //events
            beforeViewAll: function() {},
            afterViewAll: function() {},
            beforeShow: function(index, location, marker) {},
            afterShow: function(index, location, marker) {},
            afterCreateMarker: function(index, location, marker) {},

            beforeCloseInfowindow: function(index, location) {},
            afterCloseInfowindow: function(index, location) {},
            beforeOpenInfowindow: function(index, location, marker) {},
            afterOpenInfowindow: function(index, location, marker) {},

            afterRoute: function(distance, status, result) {},
            onPolylineClick: function(obj) {},
            onPolygonClick: function(obj) {},

            circleRadiusChanged: function(index, circle, marker) {},
            circleCenterChanged: function(index, circle, marker) {},

            drag: function(index, location, marker) {},
            dragEnd: function(index, location, marker) {},
            dragStart: function(index, location, marker) {}
        };

        //default menu types
        this.AddControl('dropdown', html_dropdown);
        this.AddControl('list', html_ullist);

        if (args && args.type === 'directions') {
            !args.show_markers && (args.show_markers = false);
            !args.show_infowindows && (args.show_infowindows = false);
        }

        //init
        $.extend(true, this.o, args);
    }

    //where to store the menu types
    Maplace.prototype.controls = {};

    //initialize google map object
    Maplace.prototype.create_objMap = function() {
        var self = this,
            count = 0,
            i;

        //if styled
        for (i in this.o.styles) {
            if (this.o.styles.hasOwnProperty(i)) {
                if (count === 0) {
                    this.o.map_options.mapTypeControlOptions = {
                        mapTypeIds: [google.maps.MapTypeId.ROADMAP]
                    };
                }
                count++;
                this.o.map_options.mapTypeControlOptions.mapTypeIds.push('map_style_' + count);
            }
        }

        //if init
        if (!this.loaded) {
            try {
                this.map_div.css({
                    position: 'relative',
                    overflow: 'hidden'
                });

                //create the container div into map_div
                this.canvas_map = $('<div>').addClass('canvas_map').css({
                    width: '100%',
                    height: '100%'
                }).appendTo(this.map_div);

                this.oMap = new google.maps.Map(this.canvas_map.get(0), this.o.map_options);

            } catch (err) {
                this.debug('create_objMap::' + this.map_div.selector, err.toString());
            }

        //else loads the new optionsl
        } else {
            self.oMap.setOptions(this.o.map_options);
        }

        //if styled
        count = 0;
        for (i in this.o.styles) {
            if (this.o.styles.hasOwnProperty(i)) {
                count++;
                this.oMap.mapTypes.set('map_style_' + count, new google.maps.StyledMapType(this.o.styles[i], {
                    name: i
                }));
                this.oMap.setMapTypeId('map_style_' + count);
            }
        }
    };

    //adds markers to the map
    Maplace.prototype.add_markers_to_objMap = function() {
        var a,
            point,
            type = this.o.type || 'marker';

        //switch how to display the locations
        switch (type) {
            case 'marker':
                for (a = 0; a < this.ln; a++) {
                    point = this.create_objPoint(a);
                    this.create.marker.call(this, a, point);
                }
                break;
            default:
                this.create[type].apply(this);
                break;
        }
    };

    //create the main object point
    Maplace.prototype.create_objPoint = function(index) {
        var point = $.extend({}, this.o.locations[index]),
            visibility = point.visible === undefined ? undefined : point.visible;

        !point.type && (point.type = this.o.type);

        //set obj map
        point.map = this.oMap;
        point.position = new google.maps.LatLng(point.lat, point.lon);
        point.zIndex = point.zIndex === undefined ? 10000 : (point.zIndex + 100);
        point.visible = visibility === undefined  ? this.o.show_markers : visibility;

        this.o.maxZIndex = point.zIndex > this.maxZIndex ? point.zIndex : this.maxZIndex;

        if (point.image) {
            point.icon = new google.maps.MarkerImage(
                point.image,
                new google.maps.Size(point.image_w || 32, point.image_h || 32),
                new google.maps.Point(0, 0),
                new google.maps.Point((point.image_w || 32) / 2, (point.image_h || 32)  / 2)
            );
        }

        return point;
    };

    //create the main object circle
    Maplace.prototype.create_objCircle = function(point) {
        var def_stroke_opz,
            def_circle_opz,
            circle;

        circle = $.extend({}, point);
        def_stroke_opz = $.extend({}, this.o.stroke_options);
        def_circle_opz = $.extend({}, this.o.circle_options);

        $.extend(def_stroke_opz, point.stroke_options || {});
        $.extend(circle, def_stroke_opz);

        $.extend(def_circle_opz, point.circle_options || {});
        $.extend(circle, def_circle_opz);

        circle.center = point.position;
        circle.draggable = false;
        circle.zIndex = point.zIndex > 0 ? point.zIndex - 10 : 1;

        return circle;
    };

    //create the main object point
    Maplace.prototype.add_markerEv = function(index, point, marker) {
        var self = this;

        google.maps.event.addListener(marker, 'click', function(ev) {
            self.CloseInfoWindow();
            self.o.beforeShow.call(self, index, point, marker);

            //show infowindow?
            if (self.o.show_infowindows && (point.show_infowindow === false ? false : true)) {
                self.open_infowindow(index, marker, ev);
            }

            //pan and zoom the map
            if (self.o.pan_on_click && (point.pan_on_click === false ? false : true)) {
                self.oMap.panTo(point.position);
                point.zoom && self.oMap.setZoom(point.zoom);
            }

            //activate related menu link
            if (self.current_control && self.o.generate_controls && self.current_control.activateCurrent) {
                self.current_control.activateCurrent.call(self, index + 1);
            }

            //update current location index
            self.current_index = index;

            self.o.afterShow.call(self, index, point, marker);
        });

        if (point.draggable) {
            this.add_dragEv(index, point, marker);
        }
    };

    //add events to circles objs
    Maplace.prototype.add_circleEv = function(index, circle, marker) {
        var self = this;

        google.maps.event.addListener(marker, 'click', function() {
            self.ViewOnMap(index + 1);
        });

        google.maps.event.addListener(marker, 'center_changed', function() {
            self.o.circleCenterChanged.call(self, index, circle, marker);
        });

        google.maps.event.addListener(marker, 'radius_changed', function() {
            self.o.circleRadiusChanged.call(self, index, circle, marker);
        });

        if (circle.draggable) {
            this.add_dragEv(index, circle, marker);
        }
    };

    //add drag events
    Maplace.prototype.add_dragEv = function(index, obj, marker) {
        var self = this;

        google.maps.event.addListener(marker, 'drag', function(ev) {
            var pos,
                extraType;

            if (marker.getPosition) {
                pos = marker.getPosition();
            } else if (marker.getCenter) {
                pos = marker.getCenter();
            } else {
                return;
            }

            //update circle position
            if (self.circles[index]) {
                self.circles[index].setCenter(pos);
            }

            //update polygon or polyline if defined
            if (self.Polyline) {
                extraType = 'Polyline';
            } else if (self.Polygon) {
                extraType = 'Polygon';
            }

            if (extraType) {
                var path = self[extraType].getPath(),
                    pathArray = path.getArray(),
                    arr = [],
                    i = 0;

                for (; i < pathArray.length; ++i) {
                    arr[i] = (index === i) ?
                        new google.maps.LatLng(pos.lat(), pos.lng())
                        : new google.maps.LatLng(pathArray[i].lat(), pathArray[i].lng());
                }

                self[extraType].setPath(new google.maps.MVCArray(arr));
                self.add_polyEv(extraType);
            }

            //fire drag event
            self.o.drag.call(self, index, obj, marker);
        });

        google.maps.event.addListener(marker, 'dragend', function() {
            self.o.dragEnd.call(self, index, obj, marker);
        });

        google.maps.event.addListener(marker, 'dragstart', function() {
            self.o.dragStart.call(self, index, obj, marker);
        });

        google.maps.event.addListener(marker, 'center_changed', function() {
            //update marker position
            if (self.markers[index] && marker.getCenter) {
                self.markers[index].setPosition(marker.getCenter());
            }

            self.o.drag.call(self, index, obj, marker);
        });
    };

    //add events to poly objs
    Maplace.prototype.add_polyEv = function(typeName) {
        var self = this;

        google.maps.event.addListener(this[typeName].getPath(), 'set_at', function(index, obj) {
            self.trigger_polyEv(typeName, index, obj);
        });

        google.maps.event.addListener(this[typeName].getPath(), 'insert_at', function(index, obj) {
            self.trigger_polyEv(typeName, index, obj);
        });
    };

    //trigger events to poly objs
    Maplace.prototype.trigger_polyEv = function(typeName, index, obj) {
        var item = this[typeName].getPath().getAt(index),
            newPos = new google.maps.LatLng(item.lat(), item.lng());

        this.markers[index] && this.markers[index].setPosition(newPos);
        this.circles[index] && this.circles[index].setCenter(newPos);

        this.o['on' + typeName + 'Changed'](index, obj, this[typeName].getPath().getArray());
    };

    //wrapper for the map types
    Maplace.prototype.create = {

        //single marker
        marker: function(index, point, marker) {
            //allow mix circles with markers
            if (point.type === 'circle' && !marker) {
                var circle = this.create_objCircle(point);

                if (!point.visible) {
                    circle.draggable = point.draggable;
                }

                marker = new google.maps.Circle(circle);
                this.add_circleEv(index, circle, marker);

                //store the new circle
                this.circles[index] = marker;
            }

            point.type = 'marker';

            //create the marker and add click event
            marker = new google.maps.Marker(point);
            this.add_markerEv(index, point, marker);

            //extends bounds with this location
            this.oBounds.extend(point.position);

            //store the new marker
            this.markers[index] = marker;

            this.o.afterCreateMarker.call(this, index, point, marker);

            return marker;
        },


        //circle mode
        circle: function() {
            var self = this,
                a,
                point,
                circle,
                marker;

            for (a = 0; a < this.ln; a++) {
                point = this.create_objPoint(a);

                //allow mix markers with circles
                if (point.type === 'circle') {
                    circle = this.create_objCircle(point);

                    if (!point.visible) {
                        circle.draggable = point.draggable;
                    }

                    marker = new google.maps.Circle(circle);
                    this.add_circleEv(a, circle, marker);

                    //store the new circle
                    this.circles[a] = marker;
                }

                point.type = 'marker';
                this.create.marker.call(this, a, point, marker);
            }
        },


        //polyline mode
        polyline: function() {
            var self = this,
                a,
                point,
                stroke = $.extend({}, this.o.stroke_options);

            stroke.path = [];
            stroke.draggable = this.o.draggable;
            stroke.editable = this.o.editable;
            stroke.map = this.oMap;
            stroke.zIndex = this.o.maxZIndex + 100;

            //create the path and location marker
            for (a = 0; a < this.ln; a++) {
                point = this.create_objPoint(a);
                this.create.marker.call(this, a, point);

                stroke.path.push(point.position);
            }

            this.Polyline ?
                this.Polyline.setOptions(stroke)
                : this.Polyline = new google.maps.Polyline(stroke);

            this.add_polyEv('Polyline');
        },


        //polygon mode
        polygon: function() {
            var self = this,
                a,
                point,
                stroke = $.extend({}, this.o.stroke_options);

            stroke.path = [];
            stroke.draggable = this.o.draggable;
            stroke.editable = this.o.editable;
            stroke.map = this.oMap;
            stroke.zIndex = this.o.maxZIndex + 100;

            //create the path and location marker
            for (a = 0; a < this.ln; a++) {
                point = this.create_objPoint(a);
                this.create.marker.call(this, a, point);

                stroke.path.push(point.position);
            }

            this.Polygon ?
                this.Polygon.setOptions(stroke)
                : this.Polygon = new google.maps.Polygon(stroke);

            google.maps.event.addListener(this.Polygon, 'click', function(obj) {
                self.o.onPolygonClick.call(self, obj);
            });

            this.add_polyEv('Polygon');
        },


        //fusion tables
        fusion: function() {
            this.o.fusion_options.styles = [this.o.stroke_options];
            this.o.fusion_options.map = this.oMap;

            this.Fusion ?
                this.Fusion.setOptions(this.o.fusion_options)
                : this.Fusion = new google.maps.FusionTablesLayer(this.o.fusion_options);
        },


        //directions mode
        directions: function() {
            var self = this,
                a,
                point,
                stopover,
                origin,
                destination,
                waypoints = [],
                distance = 0;

            //create the waypoints and location marker
            for (a = 0; a < this.ln; a++) {
                point = this.create_objPoint(a);

                //first location start point
                if (a === 0) {
                    origin = point.position;

                //last location end point
                } else if (a === (this.ln - 1)) {
                    destination = point.position;

                //waypoints in the middle
                } else {
                    stopover = this.o.locations[a].stopover === true ? true : false;
                    waypoints.push({
                        location: point.position,
                        stopover: stopover
                    });
                }

                this.create.marker.call(this, a, point);
            }

            this.o.directions_options.origin = origin;
            this.o.directions_options.destination = destination;
            this.o.directions_options.waypoints = waypoints;

            this.directionsService || (this.directionsService = new google.maps.DirectionsService());
            this.directionsDisplay ?
                this.directionsDisplay.setOptions({draggable: this.o.draggable})
                : this.directionsDisplay = new google.maps.DirectionsRenderer({draggable: this.o.draggable});

            this.directionsDisplay.setMap(this.oMap);

            //show the directions panel
            if (this.o.directions_panel) {
                this.o.directions_panel = $(this.o.directions_panel);
                this.directionsDisplay.setPanel(this.o.directions_panel.get(0));
            }

            if (this.o.draggable) {
                google.maps.event.addListener(this.directionsDisplay, 'directions_changed', function() {
                    var result = self.directionsDisplay.getDirections();
                    distance = self.compute_distance(self.directionsDisplay.directions);
                    self.o.afterRoute.call(self, distance, result.status, result);
                });
            }

            this.directionsService.route(this.o.directions_options, function(result, status) {
                //directions found
                if (status === google.maps.DirectionsStatus.OK) {
                    distance = self.compute_distance(result);
                    self.directionsDisplay.setDirections(result);
                }
                self.o.afterRoute.call(self, distance, status, result);
            });
        }
    };

    //route distance
    Maplace.prototype.compute_distance = function(result) {
        var total = 0,
            i,
            myroute = result.routes[0],
            rlen = myroute.legs.length;

        for (i = 0; i < rlen; i++) {
            total += myroute.legs[i].distance.value;
        }

        return total;
    };

    //wrapper for the infowindow types
    Maplace.prototype.type_to_open = {
        //google default infowindow
        bubble: function(location) {
            var self = this,
                infoWindow = { content: location.html || '' };
            if (location.infoWindowMaxWidth) {
                infoWindow.maxWidth = location.infoWindowMaxWidth;
            }
            this.infowindow = new google.maps.InfoWindow(infoWindow);
            google.maps.event.addListener(this.infowindow, 'closeclick', function(){
                self.CloseInfoWindow();
            });
        }
    };

    //open the infowindow
    Maplace.prototype.open_infowindow = function(index, marker, ev) {
        var point = this.o.locations[index],
            type = this.o.infowindow_type;

        //show if content and valid infowindow type provided
        if (point.html && this.type_to_open[type]) {
            this.o.beforeOpenInfowindow.call(this, index, point, marker);
            this.type_to_open[type].call(this, point);
            this.infowindow.open(this.oMap, marker);
            this.o.afterOpenInfowindow.call(this, index, point, marker);
        }
    };

    //gets the html for the menu
    Maplace.prototype.get_html_controls = function() {
        if (this.controls[this.o.controls_type] && this.controls[this.o.controls_type].getHtml) {
            this.current_control = this.controls[this.o.controls_type];

            return this.current_control.getHtml.apply(this);
        }
        return '';
    };

    //creates the controls menu
    Maplace.prototype.generate_controls = function() {
        //append menu on the div container
        if (!this.o.controls_on_map) {
            this.controls_wrapper.empty();
            this.controls_wrapper.append(this.get_html_controls());
            return;
        }

        //else
        //controls in map
        var cntr = $('<div class="on_gmap ' + this.o.controls_type + ' gmap_controls"></div>')
            .css(this.o.controls_applycss ? {margin: '5px'} : {}),

            inner = $(this.get_html_controls()).css(this.o.controls_applycss ? {
                background: '#fff',
                padding: '5px',
                border: '1px solid #eee',
                boxShadow: 'rgba(0, 0, 0, 0.298039) 0px 1px 4px -1px',
                maxHeight: this.map_div.find('.canvas_map').outerHeight() - 80,
                minWidth: 100,
                overflowY: 'auto',
                overflowX: 'hidden'
            } : {});

        cntr.append(inner);

        //attach controls
        this.oMap.controls[this.o.controls_position].clear();
        this.oMap.controls[this.o.controls_position].push(cntr.get(0));
    };

    //resets obj map, markers, bounds, listeners, controllers
    Maplace.prototype.init_map = function() {
        var self = this;

        this.Polyline && this.Polyline.setMap(null);
        this.Polygon && this.Polygon.setMap(null);
        this.Fusion && this.Fusion.setMap(null);
        this.directionsDisplay && this.directionsDisplay.setMap(null);

        for (var i = this.markers.length - 1; i >= 0; i -= 1) {
            try {
                this.markers[i] && this.markers[i].setMap(null);
            } catch (err) {
                self.debug('init_map::markers::setMap', err.stack);
            }
        }

        this.markers.length = 0;
        this.markers = [];

        for (var e = this.circles.length - 1; e >= 0; e -= 1) {
            try {
                this.circles[e] && this.circles[e].setMap(null);
            } catch (err) {
                self.debug('init_map::circles::setMap', err.stack);
            }
        }

        this.circles.length = 0;
        this.circles = [];

        if (this.o.controls_on_map && this.oMap.controls) {
            this.oMap.controls[this.o.controls_position].forEach(function(element, index) {
                try {
                    self.oMap.controls[this.o.controls_position].removeAt(index);
                } catch (err) {
                    self.debug('init_map::removeAt', err.stack);
                }
            });
        }

        this.oBounds = new google.maps.LatLngBounds();
    };

    //perform the first view of the map
    Maplace.prototype.perform_load = function() {
        this.CloseInfoWindow();

        //one location
        if (this.ln === 1) {
            if (this.o.map_options.set_center) {
                this.oMap.setCenter(new google.maps.LatLng(this.o.map_options.set_center[0], this.o.map_options.set_center[1]));

            } else {
                this.oMap.fitBounds(this.oBounds);
                this.ViewOnMap(1);
            }

            this.o.map_options.zoom && this.oMap.setZoom(this.o.map_options.zoom);

        //no locations
        } else if (this.ln === 0) {
            if (this.o.map_options.set_center) {
                this.oMap.setCenter(new google.maps.LatLng(this.o.map_options.set_center[0], this.o.map_options.set_center[1]));

            } else {
                this.oMap.fitBounds(this.oBounds);
            }

            this.oMap.setZoom(this.o.map_options.zoom || 1);

        //n+ locations
        } else {
            this.oMap.fitBounds(this.oBounds);

            //check the start option
            if (typeof (this.o.start - 0) === 'number' && this.o.start > 0 && this.o.start <= this.ln) {
                this.ViewOnMap(this.o.start);

            //check if set_center exists
            } else if (this.o.map_options.set_center) {
                this.oMap.setCenter(new google.maps.LatLng(this.o.map_options.set_center[0], this.o.map_options.set_center[1]));

            //view all
            } else {
                this.ViewOnMap(this.view_all_key);
            }

            this.o.map_options.zoom && this.oMap.setZoom(this.o.map_options.zoom);
        }
    };

    Maplace.prototype.debug = function(code, msg) {
        this.o.debug && console.log(code, msg);
        return this;
    };


    /////////////////////////////////////////////////////////////////////////
    /////////////////////////////////////////////////////////////////////////


    //adds a custom menu to the class
    Maplace.prototype.AddControl = function(name, func) {
        if (!name || !func) {
            self.debug('AddControl', 'Missing "name" and "func" callback.');
            return false;
        }
        this.controls[name] = func;
        return this;
    };

    //close the infowindow
    Maplace.prototype.CloseInfoWindow = function() {
        if (this.infowindow && (this.current_index || this.current_index === 0)) {
            this.o.beforeCloseInfowindow.call(this, this.current_index, this.o.locations[this.current_index]);
            this.infowindow.close();
            this.infowindow = null;
            this.o.afterCloseInfowindow.call(this, this.current_index, this.o.locations[this.current_index]);
        }
        return this;
    };

    //checks if a location has to be in menu
    Maplace.prototype.ShowOnMenu = function(index) {
        if (index === this.view_all_key && this.o.view_all && this.ln > 1) {
            return true;
        }

        index = parseInt(index, 10);
        if (typeof (index - 0) === 'number' && index >= 0 && index < this.ln) {
            var on_menu = this.o.locations[index].on_menu === false ? false : true;
            if (on_menu) {
                return true;
            }
        }

        return false;
    };

    //triggers to show a location in map
    Maplace.prototype.ViewOnMap = function(index) {
        //view all
        if (index === this.view_all_key) {
            this.o.beforeViewAll.call(this);

            this.current_index = index;
            if (this.o.locations.length > 0 && this.o.generate_controls && this.current_control && this.current_control.activateCurrent) {
                this.current_control.activateCurrent.apply(this, [index]);
            }
            this.oMap.fitBounds(this.oBounds);

            this.o.afterViewAll.call(this);

        //specific location
        } else {
            index = parseInt(index, 10);
            if (typeof (index - 0) === 'number' && index > 0 && index <= this.ln) {
                try {
                    google.maps.event.trigger(this.markers[index - 1], 'click');
                } catch (err) {
                    this.debug('ViewOnMap::trigger', err.stack);
                }
            }
        }
        return this;
    };

    //replace current locations
    Maplace.prototype.SetLocations = function(locs, reload) {
        this.o.locations = locs;
        reload && this.Load();
        return this;
    };

    //adds one or more locations to the end of the array
    Maplace.prototype.AddLocations = function(locs, reload) {
        var self = this;

        if ($.isArray(locs)) {
            $.each(locs, function(index, value) {
                self.o.locations.push(value);
            });
        }

        if ($.isPlainObject(locs)) {
            this.o.locations.push(locs);
        }

        reload && this.Load();
        return this;
    };

    //adds a location at the specific index
    Maplace.prototype.AddLocation = function(location, index, reload) {
        var self = this;

        if ($.isPlainObject(location)) {
            this.o.locations.splice(index, 0, location);
        }

        reload && this.Load();
        return this;
    };

    //remove one or more locations
    Maplace.prototype.RemoveLocations = function(locs, reload) {
        var self = this,
            k = 0;

        if ($.isArray(locs)) {
            $.each(locs, function(index, value) {
                if ((value - k) < self.ln) {
                    self.o.locations.splice(value - k, 1);
                }
                k++;
            });
        } else {
            if (locs < this.ln) {
                this.o.locations.splice(locs, 1);
            }
        }

        reload && this.Load();
        return this;
    };

    //check if already initialized with a Load()
    Maplace.prototype.Loaded = function() {
        return this.loaded;
    };

    //loads the options
    Maplace.prototype._init = function() {
        //store the locations length
        this.ln = this.o.locations.length;

        //update all locations with shared
        for (var i = 0; i < this.ln; i++) {
            var common = $.extend({}, this.o.shared);
            this.o.locations[i] = $.extend(common, this.o.locations[i]);
            if (this.o.locations[i].html) {
                this.o.locations[i].html = this.o.locations[i].html.replace('%index', i + 1);
                this.o.locations[i].html = this.o.locations[i].html.replace('%title', (this.o.locations[i].title || ''));
            }
        }

        //store dom references
        this.map_div = $(this.o.map_div);
        this.controls_wrapper = $(this.o.controls_div);
        return this;
    };

    //creates the map and menu
    Maplace.prototype.Load = function(args) {
        $.extend(true, this.o, args);
        args && args.locations && (this.o.locations = args.locations);
        this._init();

        //reset/init google map objects
        this.o.visualRefresh === false ? (google.maps.visualRefresh = false) : (google.maps.visualRefresh = true);
        this.init_map();
        this.create_objMap();

        //add markers
        this.add_markers_to_objMap();

        //generate controls
        if ((this.ln > 1 && this.o.generate_controls) || this.o.force_generate_controls)  {
            this.o.generate_controls = true;
            this.generate_controls();
        } else {
            this.o.generate_controls = false;
        }

        var self = this;

        //first call
        if (!this.loaded) {
            google.maps.event.addListenerOnce(this.oMap, 'idle', function() {
                self.perform_load();
            });

            //add custom listeners
            for (var i in this.o.listeners) {
                if (this.o.listeners.hasOwnProperty(i)) {
                    google.maps.event.addListener(this.oMap, i, this.o.listeners[i]);
                }
            }

        //all other calls
        } else {
            this.perform_load();
        }

        this.loaded = true;

        return this;
    };

    return Maplace;
}));
