Ongoing development.

src/Netzmacht/Contao/Leaflet/MapService.php

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+<?php
+
+/**
+ * @package    dev
+ * @author     David Molineus <david.molineus@netzmacht.de>
+ * @copyright  2014 netzmacht creative David Molineus
+ * @license    LGPL 3.0
+ * @filesource
+ *
+ */
+
+namespace Netzmacht\Contao\Leaflet;
+
+use Netzmacht\Contao\Leaflet\Event\GetJavascriptEvent;
+use Netzmacht\Contao\Leaflet\Mapper\DefinitionMapper;
+use Netzmacht\Contao\Leaflet\Model\MapModel;
+use Netzmacht\LeafletPHP\Assets;
+use Netzmacht\LeafletPHP\Definition\Map;
+use Netzmacht\LeafletPHP\Leaflet;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface as EventDispatcher;
+
+/**
+ * Class MapService.
+ *
+ * @package Netzmacht\Contao\Leaflet
+ */
+class MapService
+{
+    /**
+     * The definition mapper.
+     *
+     * @var DefinitionMapper
+     */
+    private $mapper;
+
+    /**
+     * The leaflet service.
+     *
+     * @var Leaflet
+     */
+    private $leaflet;
+    /**
+     * @var EventDispatcher
+     */
+    private $eventDispatcher;
+
+    /**
+     * Construct.
+     *
+     * @param DefinitionMapper $mapper          The definition mapper.
+     * @param Leaflet          $leaflet         The Leaflet instance.
+     * @param EventDispatcher  $eventDispatcher The Contao event dispatcher.
+     */
+    public function __construct(DefinitionMapper $mapper, Leaflet $leaflet, EventDispatcher $eventDispatcher)
+    {
+        $this->mapper          = $mapper;
+        $this->leaflet         = $leaflet;
+        $this->eventDispatcher = $eventDispatcher;
+    }
+
+    /**
+     * Get map definition.
+     *
+     * @param int    $mapId     The map database id.
+     * @param string $elementId Optional element id. If none given the mapId or alias is used.
+     *
+     * @return Map
+     */
+    public function getDefinition($mapId, $elementId = null)
+    {
+        $model = $this->getModel($mapId);
+
+        return $this->mapper->handle($model, $elementId);
+    }
+
+    /**
+     * Get map model.
+     *
+     * @param int $mapId Model id.
+     *
+     * @return MapModel
+     *
+     * @throws \InvalidArgumentException If no model is found.
+     */
+    public function getModel($mapId)
+    {
+        $model = MapModel::findByPk($mapId);
+
+        if ($model === null) {
+            throw new \InvalidArgumentException(sprintf('Model "%s" not found', $mapId));
+        }
+
+        return $model;
+    }
+
+    /**
+     * Get map javascript.
+     *
+     * @param int $mapId The map id.
+     * @param string $elementId Optional element id. If none given the mapId or alias is used.
+     *
+     * @return string
+     *
+     * @throws \Exception If an error occurred in the process.
+     */
+    public function getJavascript($mapId, $elementId = null)
+    {
+        $definition = $this->getDefinition($mapId, $elementId);
+        $assets     = new ContaoAssets();
+        $javascript = $this->leaflet->build($definition, $assets);
+
+        $event = new GetJavascriptEvent($definition, $javascript);
+        $this->eventDispatcher->dispatch($event::NAME, $event);
+
+        return $event->getJavascript();
+    }
+}