<?php

/***************************************************************
 * Copyright notice
 *
 * (c) 2013 Yohann CERDAN <cerdanyohann@yahoo.fr>
 * All rights reserved
 *
 * This script is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * This copyright notice MUST APPEAR in all copies of the script!
 ***************************************************************/

/**
 * Class to use the Google Maps v3 API
 *
 * @author Yohann CERDAN <cerdanyohann@yahoo.fr>
 */
class GoogleMapAPI
{
    /** GoogleMap ID for the HTML DIV and identifier for all the methods (to have several gmaps) **/
    protected $googleMapId = 'googlemapapi';

    /** GoogleMap  Direction ID for the HTML DIV **/
    protected $googleMapDirectionId = 'route';

    /** Width of the gmap **/
    protected $width = '';

    /** Height of the gmap **/
    protected $height = '';

    /** Icon width of the gmarker **/
    protected $iconWidth = 57;

    /** Icon height of the gmarker **/
    protected $iconHeight = 34;

    /** Infowindow width of the gmarker **/
    protected $infoWindowWidth = 250;

    /** Default zoom of the gmap **/
    protected $zoom = 9;

    /** Enable the zoom of the Infowindow **/
    protected $enableWindowZoom = FALSE;

    /** Default zoom of the Infowindow **/
    protected $infoWindowZoom = 3;

    /** Lang of the gmap **/
    protected $lang = 'fr';

    /**Center of the gmap **/
    protected $center = 'Paris France';

    /** Content of the HTML generated **/
    protected $content = '';

    /** Add the direction button to the infowindow **/
    protected $displayDirectionFields = FALSE;

    /** Hide the marker by default **/
    protected $defaultHideMarker = FALSE;

    /** Extra content (marker, etc...) **/
    protected $contentMarker = '';

    /** Use clusterer to display a lot of markers on the gmap **/
    protected $useClusterer = FALSE;
    protected $gridSize = 100;
    protected $maxZoom = 9;
    protected $clustererLibrarypath = 'http://google-maps-utility-library-v3.googlecode.com/svn/tags/markerclusterer/1.0/src/markerclusterer_packed.js';

    /** Enable automatic center/zoom **/
    protected $enableAutomaticCenterZoom = FALSE;

    /** maximum longitude of all markers **/
    protected $maxLng = -1000000;

    /** minimum longitude of all markers **/
    protected $minLng = 1000000;

    /** max latitude of all markers **/
    protected $maxLat = -1000000;

    /** min latitude of all markers **/
    protected $minLat = 1000000;

    /** map center latitude (horizontal), calculated automatically as markers are added to the map **/
    protected $centerLat = NULL;

    /** map center longitude (vertical),  calculated automatically as markers are added to the map **/
    protected $centerLng = NULL;

    /** factor by which to fudge the boundaries so that when we zoom encompass, the markers aren't too close to the edge **/
    protected $coordCoef = 0.01;

    /** Type of map to display **/
    protected $mapType = 'ROADMAP';

    /** Include the JS or not (if you have multiple maps **/
    protected $includeJs = TRUE;

    /**
     * Class constructor
     */
    public function __construct() {
    }

    /**
     * Set the useClusterer parameter (optimization to display a lot of marker)
     *
     * @param boolean $useClusterer         use cluster or not
     * @param int     $gridSize             grid size (The grid size of a cluster in pixel.Each cluster will be a square.If you want the algorithm to run faster, you can set this value larger.The default value is 100.)
     * @param int     $maxZoom              maxZoom (The max zoom level monitored by a marker cluster.If not given, the marker cluster assumes the maximum map zoom level.When maxZoom is reached or exceeded all markers will be shown without cluster.)
     * @param string  $clustererLibraryPath clustererLibraryPath
     *
     * @return void
     */
    public function setClusterer($useClusterer, $gridSize = 100, $maxZoom = 9, $clustererLibraryPath = '') {
        $this->useClusterer = $useClusterer;
        $this->gridSize = $gridSize;
        $this->maxZoom = $maxZoom;
        ($clustererLibraryPath == '')
            ? $this->clustererLibraryPath = 'http://google-maps-utility-library-v3.googlecode.com/svn/tags/markerclusterer/1.0/src/markerclusterer_packed.js'
            : $this->clustererLibraryPath = $clustererLibraryPath;
    }

    /**
     * Set the type of map, can be :
     * HYBRID, TERRAIN, ROADMAP, SATELLITE
     *
     * @param string $type
     * @return void
     */
    public function setMapType($type) {
        $mapsType = array('ROADMAP', 'HYBRID', 'TERRAIN', 'SATELLITE');
        if (!in_array(strtoupper($type), $mapsType)) {
            $this->mapType = $mapsType[0];
        } else {
            $this->mapType = strtoupper($type);
        }
    }

    /**
     * Set the ID of the default gmap DIV
     *
     * @param string $googleMapId the google div ID
     *
     * @return void
     */
    public function setDivId($googleMapId) {
        $this->googleMapId = $googleMapId;
    }

    /**
     * Set the ID of the default gmap direction DIV
     *
     * @param string $googleMapDirectionId GoogleMap  Direction ID for the HTML DIV
     *
     * @return void
     */
    public function setDirectionDivId($googleMapDirectionId) {
        $this->googleMapDirectionId = $googleMapDirectionId;
    }

    /**
     * Set the size of the gmap
     *
     * @param int $width  GoogleMap  width
     * @param int $height GoogleMap  height
     *
     * @return void
     */
    public function setSize($width, $height) {
        $this->width = $width;
        $this->height = $height;
    }

    /**
     * Set the with of the gmap infowindow (on marker clik)
     *
     * @param int $infoWindowWidth GoogleMap  info window width
     *
     * @return void
     */
    public function setInfoWindowWidth($infoWindowWidth) {
        $this->infoWindowWidth = $infoWindowWidth;
    }

    /**
     * Set the size of the icon markers
     *
     * @param int $iconWidth  GoogleMap  marker icon width
     * @param int $iconHeight GoogleMap  marker icon height
     *
     * @return void
     */
    public function setIconSize($iconWidth, $iconHeight) {
        $this->iconWidth = $iconWidth;
        $this->iconHeight = $iconHeight;
    }

    /**
     * Set the lang of the gmap
     *
     * @param string $lang GoogleMap  lang : fr,en,..
     *
     * @return void
     */
    public function setLang($lang) {
        $this->lang = $lang;
    }

    /**
     * Set the zoom of the gmap
     *
     * @param int $zoom GoogleMap  zoom.
     *
     * @return void
     */
    public function setZoom($zoom) {
        $this->zoom = $zoom;
    }

    /**
     * Set the zoom of the infowindow
     *
     * @param int $infoWindowZoom GoogleMap  zoom.
     *
     * @return void
     */
    public function setInfoWindowZoom($infoWindowZoom) {
        $this->infoWindowZoom = $infoWindowZoom;
    }

    /**
     * Enable the zoom on the marker when you click on it
     *
     * @param int $enableWindowZoom GoogleMap  zoom.
     *
     * @return void
     */
    public function setEnableWindowZoom($enableWindowZoom) {
        $this->enableWindowZoom = $enableWindowZoom;
    }

    /**
     * Enable theautomatic center/zoom at the gmap load
     *
     * @param int $enableAutomaticCenterZoom GoogleMap  zoom.
     *
     * @return void
     */
    public function setEnableAutomaticCenterZoom($enableAutomaticCenterZoom) {
        $this->enableAutomaticCenterZoom = $enableAutomaticCenterZoom;
    }

    /**
     * Set the center of the gmap (an address)
     *
     * @param string $center GoogleMap  center (an address)
     *
     * @return void
     */
    public function setCenter($center) {
        $this->center = $center;
    }

    /**
     * Set the center of the gmap (a lat and lng)
     *
     * @param string $lat
     * @param string $lng
     *
     * @return void
     */
    public function setCenterLatLng($lat, $lng) {
        $this->centerLatLng = 'new google.maps.LatLng(' . $lat . ', ' . $lng . ')';
    }

    /**
     * Set the center of the gmap
     *
     * @param boolean $displayDirectionFields display directions or not in the info window
     *
     * @return void
     */
    public function setDisplayDirectionFields($displayDirectionFields) {
        $this->displayDirectionFields = $displayDirectionFields;
    }

    /**
     * Set the defaultHideMarker
     *
     * @param boolean $defaultHideMarker hide all the markers on the map by default
     *
     * @return void
     */
    public function setDefaultHideMarker($defaultHideMarker) {
        $this->defaultHideMarker = $defaultHideMarker;
    }

    /**
     * Set the includeJs
     *
     * @param boolean $includeJs do not include JS
     *
     * @return void
     */
    public function setincludeJs($includeJs) {
        $this->includeJs = $includeJs;
    }

    /**
     * Get the google map content
     *
     * @return string the google map html code
     */
    public function getGoogleMap() {
        return $this->content;
    }

    /**
     * Get URL content using cURL.
     *
     * @param string $url the url
     *
     * @return string the html code
     *
     * @todo add proxy settings
     */
    public function getContent($url) {
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_TIMEOUT, 10);
        curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 5);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE);
        curl_setopt($curl, CURLOPT_URL, $url);
        $data = curl_exec($curl);
        curl_close($curl);
        return $data;
    }

    /**
     * Geocoding an address (address -> lat,lng)
     *
     * @param string $address an address
     *
     * @return array array with precision, lat & lng
     */
    public function geocoding($address) {
        $url = 'http://maps.googleapis.com/maps/api/geocode/json?address=' . urlencode($address) . '&sensor=true';

        if (function_exists('curl_init')) {
            $data = $this->getContent($url);
        } else {
            $data = file_get_contents($url);
        }

        $response = json_decode($data, TRUE);
        $status = $response['status'];

        if ($status == 'OK') {
            $return = array(
                $status,
                $response['results'][0]['types'],
                $response['results'][0]['geometry']['location']['lat'],
                $response['results'][0]['geometry']['location']['lng']
            ); // successful geocode, $status-$precision-$lat-$lng
        } else {
            echo '<!-- geocoding : failure to geocode : ' . $status . " -->\n";
            $return = NULL; // failure to geocode
        }

        return $return;
    }

    /**
     * Add marker by his coord
     *
     * @param string $lat      lat
     * @param string $lng      lngs
     * @param string $title    title
     * @param string $html     html code display in the info window
     * @param string $category marker category
     * @param string $icon     an icon url
     *
     * @return void
     */
    public function addMarkerByCoords($lat, $lng, $title, $html = '', $category = '', $icon = '') {
        if ($icon == '') {
            $icon = 'http://maps.gstatic.com/mapfiles/markers2/marker.png';
        }

        // Save the lat/lon to enable the automatic center/zoom
        $this->maxLng = (float)max((float)$lng, $this->maxLng);
        $this->minLng = (float)min((float)$lng, $this->minLng);
        $this->maxLat = (float)max((float)$lat, $this->maxLat);
        $this->minLat = (float)min((float)$lat, $this->minLat);
        $this->centerLng = (float)($this->minLng + $this->maxLng) / 2;
        $this->centerLat = (float)($this->minLat + $this->maxLat) / 2;

        $this->contentMarker .= "\t" . 'addMarker(new google.maps.LatLng("' . $lat . '","' . $lng . '"),"' . $title . '","' . $html . '","' . $category . '","' . $icon . '",map' . $this->googleMapId . ');' . "\n";
    }

    /**
     * Add marker by his address
     *
     * @param string $address  an ddress
     * @param string $title    title
     * @param string $content  html code display in the info window
     * @param string $category marker category
     * @param string $icon     an icon url
     *
     * @return void
     */
    public function addMarkerByAddress($address, $title = '', $content = '', $category = '', $icon = '') {
        $point = $this->geocoding($address);
        if ($point !== NULL) {
            $this->addMarkerByCoords($point[2], $point[3], $title, $content, $category, $icon);
        } else {
            echo '<!-- addMarkerByAddress : ADDRESS NOT FOUND ' . strip_tags($address) . " -->\n";
        }
    }

    /**
     * Add marker by an array of coord
     *
     * @param string $coordtab an array of lat,lng,content
     * @param string $category marker category
     * @param string $icon     an icon url
     *
     * @return void
     */
    public function addArrayMarkerByCoords($coordtab, $category = '', $icon = '') {
        foreach ($coordtab as $coord) {
            $this->addMarkerByCoords($coord[0], $coord[1], $coord[2], $coord[3], $category, $icon);
        }
    }

    /**
     * Add marker by an array of address
     *
     * @param string $coordtab an array of address
     * @param string $category marker category
     * @param string $icon     an icon url
     *
     * @return void
     */
    public function addArrayMarkerByAddress($coordtab, $category = '', $icon = '') {
        foreach ($coordtab as $coord) {
            $this->addMarkerByAddress($coord[0], $coord[1], $coord[2], $category, $icon);
        }
    }

    /**
     * Set a direction between 2 addresss and set a text panel
     *
     * @param string $from an address
     * @param string $to   an address
     *
     * @return void
     */
    public function addDirection($from, $to) {
        $this->contentMarker .= 'addDirection("' . $from . '","' . $to . '");';
    }

    /**
     * Parse a KML file and add markers to a category
     *
     * @param string $url      url of the kml file compatible with gmap and gearth
     * @param string $category marker category
     * @param string $icon     an icon url
     *
     * @return void
     */
    public function addKML($url, $category = '', $icon = '') {
        $xml = new SimpleXMLElement($url, NULL, TRUE);
        foreach ($xml->Document->Folder->Placemark as $item) {
            $coordinates = explode(',', (string)$item->Point->coordinates);
            $name = (string)$item->name;
            $this->addMarkerByCoords($coordinates[1], $coordinates[0], $name, $name, $category, $icon);
        }
    }

    /**
     * Initialize the javascript code
     *
     * @return void
     */
    public function init() {
        // Google map DIV
        if (($this->width != '') && ($this->height != '')) {
            $this->content .= "\t" . '<div id="' . $this->googleMapId . '" style="width:' . $this->width . ';height:' . $this->height . '"></div>' . "\n";
        } else {
            $this->content .= "\t" . '<div id="' . $this->googleMapId . '"></div>' . "\n";
        }

        if ($this->includeJs === TRUE) {
            // Google map JS
            $this->content .= '<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false&language=' . $this->lang . '">';
            $this->content .= '</script>' . "\n";

            // Clusterer JS
            if ($this->useClusterer == TRUE) {
                $this->content .= '<script src="' . $this->clustererLibraryPath . '" type="text/javascript"></script>' . "\n";
            }
        }

        $this->content .= '<script type="text/javascript">' . "\n";


        $this->content .= 'function addLoadEvent(func) { ' . "\n";
        $this->content .= 'var oldonload = window.onload; ' . "\n";
        $this->content .= 'if (typeof window.onload != \'function\') { ' . "\n";
        $this->content .= 'window.onload = func; ' . "\n";
        $this->content .= '} else { ' . "\n";
        $this->content .= 'window.onload = function() { ' . "\n";
        $this->content .= 'if (oldonload) { ' . "\n";
        $this->content .= ' oldonload(); ' . "\n";
        $this->content .= '} ' . "\n";
        $this->content .= ' func(); ' . "\n";
        $this->content .= '} ' . "\n";
        $this->content .= '}' . "\n";
        $this->content .= '} ' . "\n";

        //global variables
        $this->content .= 'var geocoder = new google.maps.Geocoder();' . "\n";
        $this->content .= 'var map' . $this->googleMapId . ';' . "\n";
        $this->content .= 'var gmarkers = [];' . "\n";
        $this->content .= 'var infowindow;' . "\n";
        $this->content .= 'var directions = new google.maps.DirectionsRenderer();' . "\n";
        $this->content .= 'var directionsService = new google.maps.DirectionsService();' . "\n";
        $this->content .= 'var current_lat = 0;' . "\n";
        $this->content .= 'var current_lng = 0;' . "\n";

        // JS public function to get current Lat & Lng
        $this->content .= "\t" . 'function getCurrentLat() {' . "\n";
        $this->content .= "\t\t" . 'return current_lat;' . "\n";
        $this->content .= "\t" . '}' . "\n";
        $this->content .= "\t" . 'function getCurrentLng() {' . "\n";
        $this->content .= "\t\t" . 'return current_lng;' . "\n";
        $this->content .= "\t" . '}' . "\n";

        // JS public function to add a  marker
        $this->content .= "\t" . 'function addMarker(latlng,title,content,category,icon,currentmap) {' . "\n";
        $this->content .= "\t\t" . 'var marker = new google.maps.Marker({' . "\n";
        $this->content .= "\t\t\t" . 'map:  currentmap,' . "\n";
        $this->content .= "\t\t\t" . 'title : title,' . "\n";
        $this->content .= "\t\t\t" . 'icon:  new google.maps.MarkerImage(icon, new google.maps.Size(' . $this->iconWidth . ', ' . $this->iconHeight . ')),' . "\n";
        $this->content .= "\t\t\t" . 'position: latlng' . "\n";
        $this->content .= "\t\t" . '});' . "\n";

        // Display direction inputs in the info window
        if ($this->displayDirectionFields == TRUE) {
            $this->content .= "\t\t" . 'content += \'<div style="clear:both;height:20px;"></div>\';' . "\n";
            $this->content .= "\t\t" . 'id_name = \'marker_\'+gmarkers.length;' . "\n";
            $this->content .= "\t\t" . 'content += \'<input type="text" id="\'+id_name+\'"/>\';' . "\n";
            $this->content .= "\t\t" . 'var from = ""+latlng.lat()+","+latlng.lng();' . "\n";
            $this->content .= "\t\t" . 'content += \'<br /><input type="button" onClick="addDirection(to.value,document.getElementById(\\\'\'+id_name+\'\\\').value);" value="Arrivée"/>\';' . "\n";
            $this->content .= "\t\t" . 'content += \'<input type="button" onClick="addDirection(document.getElementById(\\\'\'+id_name+\'\\\').value,to.value);" value="Départ"/>\';' . "\n";
        }

        $this->content .= "\t\t" . 'var html = \'<div style="text-align:left;width:' . $this->infoWindowWidth . 'px;" class="infoGmaps">\'+content+\'</div>\'' . "\n";
        $this->content .= "\t\t" . 'google.maps.event.addListener(marker, "click", function() {' . "\n";
        $this->content .= "\t\t\t" . 'if (infowindow) infowindow.close();' . "\n";
        $this->content .= "\t\t\t" . 'infowindow = new google.maps.InfoWindow({content: html});' . "\n";
        $this->content .= "\t\t\t" . 'infowindow.open(currentmap,marker);' . "\n";

        // Enable the zoom when you click on a marker
        if ($this->enableWindowZoom == TRUE) {
            $this->content .= "\t\t" . 'currentmap.setCenter(new google.maps.LatLng(latlng.lat(),latlng.lng()),' . $this->infoWindowZoom . ');' . "\n";
        }

        $this->content .= "\t\t" . '});' . "\n";
        $this->content .= "\t\t" . 'marker.mycategory = category;' . "\n";
        $this->content .= "\t\t" . 'gmarkers.push(marker);' . "\n";

        // Hide marker by default
        if ($this->defaultHideMarker == TRUE) {
            $this->content .= "\t\t" . 'marker.setVisible(false);' . "\n";
        }
        $this->content .= "\t" . '}' . "\n";

        // JS public function to add a geocode marker
        $this->content .= "\t" . 'function geocodeMarker(address,title,content,category,icon) {' . "\n";
        $this->content .= "\t\t" . 'if (geocoder) {' . "\n";
        $this->content .= "\t\t\t" . 'geocoder.geocode( { "address" : address}, function(results, status) {' . "\n";
        $this->content .= "\t\t\t\t" . 'if (status == google.maps.GeocoderStatus.OK) {' . "\n";
        $this->content .= "\t\t\t\t\t" . 'var latlng =  results[0].geometry.location;' . "\n";
        $this->content .= "\t\t\t\t\t" . 'addMarker(results[0].geometry.location,title,content,category,icon)' . "\n";
        $this->content .= "\t\t\t\t" . '}' . "\n";
        $this->content .= "\t\t\t" . '});' . "\n";
        $this->content .= "\t\t" . '}' . "\n";
        $this->content .= "\t" . '}' . "\n";

        // JS public function to center the gmaps dynamically
        $this->content .= "\t" . 'function geocodeCenter(address) {' . "\n";
        $this->content .= "\t\t" . 'if (geocoder) {' . "\n";
        $this->content .= "\t\t\t" . 'geocoder.geocode( { "address": address}, function(results, status) {' . "\n";
        $this->content .= "\t\t\t\t" . 'if (status == google.maps.GeocoderStatus.OK) {' . "\n";
        $this->content .= "\t\t\t\t" . 'map' . $this->googleMapId . '.setCenter(results[0].geometry.location);' . "\n";
        $this->content .= "\t\t\t\t" . '} else {' . "\n";
        $this->content .= "\t\t\t\t" . 'alert("Geocode was not successful for the following reason: " + status);' . "\n";
        $this->content .= "\t\t\t\t" . '}' . "\n";
        $this->content .= "\t\t\t" . '});' . "\n";
        $this->content .= "\t\t" . '}' . "\n";
        $this->content .= "\t" . '}' . "\n";

        // JS public function to set direction
        $this->content .= "\t" . 'function addDirection(from,to) {' . "\n";
        $this->content .= "\t\t" . 'var request = {' . "\n";
        $this->content .= "\t\t" . 'origin:from, ' . "\n";
        $this->content .= "\t\t" . 'destination:to,' . "\n";
        $this->content .= "\t\t" . 'travelMode: google.maps.DirectionsTravelMode.DRIVING' . "\n";
        $this->content .= "\t\t" . '};' . "\n";
        $this->content .= "\t\t" . 'directionsService.route(request, function(response, status) {' . "\n";
        $this->content .= "\t\t" . 'if (status == google.maps.DirectionsStatus.OK) {' . "\n";
        $this->content .= "\t\t" . 'directions.setDirections(response);' . "\n";
        $this->content .= "\t\t" . '}' . "\n";
        $this->content .= "\t\t" . '});' . "\n";

        $this->content .= "\t\t" . 'if(infowindow) { infowindow.close(); }' . "\n";
        $this->content .= "\t" . '}' . "\n";

        // JS public function to show a category of marker
        $this->content .= "\t" . 'function showCategory(category) {' . "\n";
        $this->content .= "\t\t" . 'for (var i=0; i<gmarkers.length; i++) {' . "\n";
        $this->content .= "\t\t\t" . 'if (gmarkers[i].mycategory == category) {' . "\n";
        $this->content .= "\t\t\t\t" . 'gmarkers[i].setVisible(true);' . "\n";
        $this->content .= "\t\t\t" . '}' . "\n";
        $this->content .= "\t\t" . '}' . "\n";
        $this->content .= "\t" . '}' . "\n";

        // JS public function to hide a category of marker
        $this->content .= "\t" . 'function hideCategory(category) {' . "\n";
        $this->content .= "\t\t" . 'for (var i=0; i<gmarkers.length; i++) {' . "\n";
        $this->content .= "\t\t\t" . 'if (gmarkers[i].mycategory == category) {' . "\n";
        $this->content .= "\t\t\t\t" . 'gmarkers[i].setVisible(false);' . "\n";
        $this->content .= "\t\t\t" . '}' . "\n";
        $this->content .= "\t\t" . '}' . "\n";
        $this->content .= "\t\t" . 'if(infowindow) { infowindow.close(); }' . "\n";
        $this->content .= "\t" . '}' . "\n";

        // JS public function to hide all the markers
        $this->content .= "\t" . 'function hideAll() {' . "\n";
        $this->content .= "\t\t" . 'for (var i=0; i<gmarkers.length; i++) {' . "\n";
        $this->content .= "\t\t\t" . 'gmarkers[i].setVisible(false);' . "\n";
        $this->content .= "\t\t" . '}' . "\n";
        $this->content .= "\t\t" . 'if(infowindow) { infowindow.close(); }' . "\n";
        $this->content .= "\t" . '}' . "\n";

        // JS public function to show all the markers
        $this->content .= "\t" . 'function showAll() {' . "\n";
        $this->content .= "\t\t" . 'for (var i=0; i<gmarkers.length; i++) {' . "\n";
        $this->content .= "\t\t\t" . 'gmarkers[i].setVisible(true);' . "\n";
        $this->content .= "\t\t" . '}' . "\n";
        $this->content .= "\t\t" . 'if(infowindow) { infowindow.close(); }' . "\n";
        $this->content .= "\t" . '}' . "\n";

        // JS public function to hide/show a category of marker - TODO BUG
        $this->content .= "\t" . 'function toggleHideShow(category) {' . "\n";
        $this->content .= "\t\t" . 'for (var i=0; i<gmarkers.length; i++) {' . "\n";
        $this->content .= "\t\t\t" . 'if (gmarkers[i].mycategory === category) {' . "\n";
        $this->content .= "\t\t\t\t" . 'if (gmarkers[i].getVisible()===true) { gmarkers[i].setVisible(false); }' . "\n";
        $this->content .= "\t\t\t\t" . 'else gmarkers[i].setVisible(true);' . "\n";
        $this->content .= "\t\t\t" . '}' . "\n";
        $this->content .= "\t\t" . '}' . "\n";
        $this->content .= "\t\t" . 'if(infowindow) { infowindow.close(); }' . "\n";
        $this->content .= "\t" . '}' . "\n";

        // JS public function add a KML
        $this->content .= "\t" . 'function addKML(file) {' . "\n";
        $this->content .= "\t\t" . 'var ctaLayer = new google.maps.KmlLayer(file);' . "\n";
        $this->content .= "\t\t" . 'ctaLayer.setMap(map' . $this->googleMapId . ');' . "\n";
        $this->content .= "\t" . '}' . "\n";
    }

    /**
     * Generate the HTML code of the gmap
     */
    public function generate() {
        $this->init();

        //Fonction init()
        $this->content .= "\t" . 'function initialize' . $this->googleMapId . '() {' . "\n";
        $this->content .= "\t" . 'var myLatlng = new google.maps.LatLng(48.8792,2.34778);' . "\n";
        $this->content .= "\t" . 'var myOptions = {' . "\n";
        $this->content .= "\t\t" . 'zoom: ' . $this->zoom . ',' . "\n";
        $this->content .= "\t\t" . 'center: myLatlng,' . "\n";
        $this->content .= "\t\t" . 'mapTypeId: google.maps.MapTypeId.' . $this->mapType . "\n";
        $this->content .= "\t" . '}' . "\n";

        //Goole map Div Id
        $this->content .= "\t" . 'map' . $this->googleMapId . ' = new google.maps.Map(document.getElementById("' . $this->googleMapId . '"), myOptions);' . "\n";

        // Center
        if ($this->enableAutomaticCenterZoom == TRUE) {
            $lenLng = $this->maxLng - $this->minLng;
            $lenLat = $this->maxLat - $this->minLat;
            $this->minLng -= $lenLng * $this->coordCoef;
            $this->maxLng += $lenLng * $this->coordCoef;
            $this->minLat -= $lenLat * $this->coordCoef;
            $this->maxLat += $lenLat * $this->coordCoef;

            $minLat = number_format(floatval($this->minLat), 12, '.', '');
            $minLng = number_format(floatval($this->minLng), 12, '.', '');
            $maxLat = number_format(floatval($this->maxLat), 12, '.', '');
            $maxLng = number_format(floatval($this->maxLng), 12, '.', '');
            $this->content .= "\t\t\t" . 'var bds = new google.maps.LatLngBounds(new google.maps.LatLng(' . $minLat . ',' . $minLng . '),new google.maps.LatLng(' . $maxLat . ',' . $maxLng . '));' . "\n";
            $this->content .= "\t\t\t" . 'map' . $this->googleMapId . '.fitBounds(bds);' . "\n";
        } else {
            if (isset($this->centerLatLng)) {
                $this->content .= "\t" . 'map' . $this->googleMapId . '.setCenter(' . $this->centerLatLng . ');' . "\n";
            } else {
                $this->content .= "\t" . 'geocodeCenter("' . $this->center . '");' . "\n";
            }
        }

        $this->content .= "\t" . 'google.maps.event.addListener(map' . $this->googleMapId . ',"click",function(event) { if (event) { current_lat=event.latLng.lat();current_lng=event.latLng.lng(); }}) ;' . "\n";

        $this->content .= "\t" . 'directions.setMap(map' . $this->googleMapId . ');' . "\n";
        $this->content .= "\t" . 'directions.setPanel(document.getElementById("' . $this->googleMapDirectionId . '"))' . "\n";

        // add all the markers
        $this->content .= $this->contentMarker;

        // Clusterer JS
        if ($this->useClusterer == TRUE) {
            $this->content .= "\t" . 'var markerCluster = new MarkerClusterer(map' . $this->googleMapId . ', gmarkers,{gridSize: ' . $this->gridSize . ', maxZoom: ' . $this->maxZoom . '});' . "\n";
        }

        $this->content .= '}' . "\n";

        // Chargement de la map a la fin du HTML
        //$this->content.= "\t".'window.onload=initialize;'."\n";
        $this->content .= "\t" . 'addLoadEvent(initialize' . $this->googleMapId . ');' . "\n";

        //Fermeture du javascript
        $this->content .= '</script>' . "\n";

    }

}