Implement overpass layer.

src/Netzmacht/Contao/Leaflet/Mapper/Layer/OverpassLayerMapper.php

@@ -0,0 +1,74 @@
+<?php
+
+/**
+ * @package    netzmacht
+ * @author     David Molineus <david.molineus@netzmacht.de>
+ * @copyright  2016 netzmacht David Molineus. All rights reserved.
+ * @filesource
+ *
+ */
+
+namespace Netzmacht\Contao\Leaflet\Mapper\Layer;
+
+use Netzmacht\Contao\Leaflet\Filter\Filter;
+use Netzmacht\Contao\Leaflet\Mapper\DefinitionMapper;
+use Netzmacht\Contao\Leaflet\Mapper\OptionsBuilder;
+use Netzmacht\JavascriptBuilder\Type\Expression;
+use Netzmacht\LeafletPHP\Definition;
+use Netzmacht\LeafletPHP\Plugins\OverpassLayer\OverpassLayer;
+
+/**
+ * Class OverpassLayerMapper
+ *
+ * @package Netzmacht\Contao\Leaflet\Mapper\Layer
+ */
+class OverpassLayerMapper extends AbstractLayerMapper
+{
+    /**
+     * The definition type.
+     *
+     * @var string
+     */
+    protected static $type = 'overpass';
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function initialize()
+    {
+        parent::initialize();
+
+        $this->optionsBuilder
+            ->addOption('overpassQuery', 'query')
+            ->addConditionalOption('minZoom')
+            ->addConditionalOption('overpassEndpoint', 'endpoint');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function build(
+        Definition $definition,
+        \Model $model,
+        DefinitionMapper $mapper,
+        Filter $filter = null,
+        Definition $parent = null
+    ) {
+        if (!$definition instanceof OverpassLayer) {
+            return;
+        }
+
+        $minZoomIndicatorOptions        = $definition->getMinZoomIndicatorOptions();
+        $minZoomIndicatorOptionsBuilder = new OptionsBuilder();
+        $minZoomIndicatorOptionsBuilder
+            ->addConditionalOption('minZoomIndicatorPosition', 'position')
+            ->addConditionalOption('minZoomIndicatorMessageNoLayer', 'minZoomMessageNoLayer')
+            ->addConditionalOption('minZoomIndicatorMessage', 'minZoomMessage');
+
+        $minZoomIndicatorOptionsBuilder->build($minZoomIndicatorOptions, $model);
+
+        if ($model->overpassCallback) {
+            $definition->setCallback(new Expression($model->overpassCallback));
+        }
+    }
+}

src/Netzmacht/Contao/Leaflet/Mapper/OptionsBuilder.php

@@ -162,7 +162,7 @@ class OptionsBuilder
      *
      * @return void
      */
-    private function buildConditionals(Definition $definition, \Model $model)
+    private function buildConditionals($definition, \Model $model)
     {
         foreach ($this->conditional as $column => $conditions) {
             foreach ($conditions as $value => $options) {