Extend 2amigos Leaflet Map Class - Allowing for Global access to Map variable

CustomMapWidget.php

<?php
namespace app\components;

use dosamigos\leaflet\LeafLet;
use dosamigos\leaflet\widgets\Map;
use dosamigos\leaflet\LeafLetAsset;
use yii\base\InvalidConfigException;
use yii\base\Widget;
use yii\helpers\ArrayHelper;
use yii\helpers\Html;
use yii\helpers\Json;


class CustomMapWidget extends Map
{

    public function registerScript()
    {
        $view = $this->getView();

        LeafLetAsset::register($view);
        $this->leafLet->getPlugins()->registerAssetBundles($view);

        $id = $this->options['id'];
        $name = $this->leafLet->name;
        $js = $this->leafLet->getJs();

        $clientOptions = $this->leafLet->clientOptions;

        $options = empty($clientOptions) ? '{}' : Json::encode($clientOptions);
        array_unshift($js, "$name = L.map('$id', $options);");
        if ($this->leafLet->getTileLayer() !== null) {
            $js[] = $this->leafLet->getTileLayer()->encode();
        }

        $clientEvents = $this->leafLet->clientEvents;

        if (!empty($clientEvents)) {
            foreach ($clientEvents as $event => $handler) {
                $js[] = "$name.on('$event', $handler);";
            }
        }
        $view->registerJs("function {$name}_init(){\n" . implode("\n", $js) . "}\n{$name}_init();");
    }
}

leaflet_map.php

<?php

// first lets setup the center of our map
$center = new dosamigos\leaflet\types\LatLng(['lat' => 51.508, 'lng' => -0.11]);

// now lets create a marker that we are going to place on our map
$marker = new \dosamigos\leaflet\layers\Marker(['latLng' => $center, 'popupContent' => 'Hi!']);

// The Tile Layer (very important)
$tileLayer = new \dosamigos\leaflet\layers\TileLayer([
   'urlTemplate' => 'http://{s}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}.png',
]);

// now our component and we are going to configure it
$leaflet = new \dosamigos\leaflet\LeafLet([
    'center' => $center, // set the center
]);

// Different layers can be added to our map using the `addLayer` function.
$leaflet->addLayer($marker)      // add the marker
        ->addLayer($tileLayer);  // add the tile layer





// Render Custom Map Widget
echo \app\components\CustomMapWidget::widget([
    'leafLet'   => $leaflet,
    'id'        => 'ww_map',
    'height'    => '400',
]);

?>

WWMapWidget.php

<?php
namespace app\components\widgets;

use dosamigos\leaflet\LeafLet;
use dosamigos\leaflet\widgets\Map;
use dosamigos\leaflet\LeafLetAsset;
use yii\base\InvalidConfigException;
use yii\base\Widget;
use yii\helpers\ArrayHelper;
use yii\helpers\Html;
use yii\helpers\Json;


class WWMap extends Map
{

    public function registerScript()
    {
        $view = $this->getView();

        LeafLetAsset::register($view);
        $this->leafLet->getPlugins()->registerAssetBundles($view);

        $id = $this->options['id'];
        $name = $this->leafLet->name;
        $js = $this->leafLet->getJs();

        $clientOptions = $this->leafLet->clientOptions;

        $options = empty($clientOptions) ? '{}' : Json::encode($clientOptions);
        array_unshift($js, "$name = L.map('$id', $options);");
        if ($this->leafLet->getTileLayer() !== null) {
            $js[] = $this->leafLet->getTileLayer()->encode();
        }

        $clientEvents = $this->leafLet->clientEvents;

        if (!empty($clientEvents)) {
            foreach ($clientEvents as $event => $handler) {
                $js[] = "$name.on('$event', $handler);";
            }
        }
        $view->registerJs("function {$name}_init(){\n" . implode("\n", $js) . "}\n{$name}_init();");
    }
}