wp-acf-google-map-options-marker-style-front-init.js

function new_map($el){

    var $markers = $el.find('.marker');

    var args = {
        zoom		: 16,
        center		: new google.maps.LatLng(0, 0),
        mapTypeId	: google.maps.MapTypeId.ROADMAP
    };
    
    // Ajout du Zoom
    if($el.attr('data-zoom') != '')
        args.zoom = parseInt($acf_map.attr('data-zoom'));
    
    // Ajout du Style
    if($el.attr('data-style') != '')
        args.styles = $.parseJSON($acf_map.attr('data-style'));
        	
    var map = new google.maps.Map( $el[0], args);

    map.markers = [];

    $markers.each(function(){
        add_marker( $(this), map );
    });

    center_map( map );

    return map;

}

function add_marker($marker, map){

    var latlng = new google.maps.LatLng( $marker.attr('data-lat'), $marker.attr('data-lng') );

    var marker_args = {
        position	: latlng,
        map			: map
    };
    
    // Ajout du Marker
    if($marker.attr('data-icon') != '')
        marker_args.icon = {
            url: $marker.attr('data-icon'),
            scaledSize: new google.maps.Size(50, 50)
        };

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

    map.markers.push(marker);

    if($marker.html()){

        var infowindow = new google.maps.InfoWindow({
            content		: $marker.html()
        });

        google.maps.event.addListener(marker, 'click', function() {
            infowindow.open( map, marker );
        });
        
    }

}

function center_map(map){

    var bounds = new google.maps.LatLngBounds();

    $.each( map.markers, function( i, marker ){
        var latlng = new google.maps.LatLng( marker.position.lat(), marker.position.lng() );
        bounds.extend( latlng );
    });

    if(map.markers.length == 1){
        map.setCenter(bounds.getCenter());
        
    } else{
        map.fitBounds(bounds);
        
    }

}