Implement marker cluster.

2025-11-30 20:13:49 +01:00 · 2015-01-21 14:24:22 +01:00
parent 3c9d30e1d7
commit 5d1ccb1d54
8 changed files with 320 additions and 47 deletions
--- a/src/Netzmacht/Contao/Leaflet/Mapper/Layer/MarkerClusterLayerMapper.php
+++ b/src/Netzmacht/Contao/Leaflet/Mapper/Layer/MarkerClusterLayerMapper.php
@@ -0,0 +1,113 @@
+<?php
+
+/**
+ * @package    dev
+ * @author     David Molineus <david.molineus@netzmacht.de>
+ * @copyright  2015 netzmacht creative David Molineus
+ * @license    LGPL 3.0
+ * @filesource
+ *
+ */
+
+namespace Netzmacht\Contao\Leaflet\Mapper\Layer;
+
+use Netzmacht\Contao\Leaflet\Mapper\DefinitionMapper;
+use Netzmacht\Contao\Leaflet\Model\LayerModel;
+use Netzmacht\JavascriptBuilder\Type\AnonymousFunction;
+use Netzmacht\JavascriptBuilder\Type\Expression;
+use Netzmacht\LeafletPHP\Definition;
+use Netzmacht\LeafletPHP\Definition\HasEvents;
+use Netzmacht\LeafletPHP\Definition\Layer;
+use Netzmacht\LeafletPHP\Definition\Type\LatLngBounds;
+use Netzmacht\LeafletPHP\Plugins\MarkerCluster\MarkerClusterGroup;
+use Netzmacht\LeafletPHP\Plugins\Omnivore\OmnivoreLayer;
+
+/**
+ * Class MarkerClusterLayerMapper maps the layer database model to the marker cluster definition.
+ *
+ * @package Netzmacht\Contao\Leaflet\Mapper\Layer
+ */
+class MarkerClusterLayerMapper extends AbstractLayerMapper
+{
+    /**
+     * Class of the definition being created.
+     *
+     * @var string
+     */
+    protected static $definitionClass = 'Netzmacht\LeafletPHP\Plugins\MarkerCluster\MarkerClusterGroup';
+
+    /**
+     * Layer type.
+     *
+     * @var string
+     */
+    protected static $type = 'markercluster';
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function initialize()
+    {
+        parent::initialize();
+
+        $this
+            ->addOptions('showCoverageOnHover', 'zoomToBoundsOnClick', 'spiderfyOnMaxZoom')
+            ->addOption('removeOutsideVisibleBounds')
+            ->addConditionalOption('maxClusterRadius')
+            ->addConditionalOption('singleMarkerMode')
+            ->addConditionalOption('animateAddingMarkers')
+            ->addConditionalOption('disableClusteringAtZoom')
+            ->addConditionalOption('spiderfyDistanceMultiplier');
+    }
+
+    /**
+     * {@inheritdoc}
+     * @SuppressWarnings(PHPMD.Superglobals)
+     */
+    protected function build(
+        Definition $definition,
+        \Model $model,
+        DefinitionMapper $mapper,
+        LatLngBounds $bounds = null,
+        Definition $parent = null
+    ) {
+        parent::build($definition, $model, $mapper, $bounds, $parent);
+
+        /** @var MarkerClusterGroup $definition */
+
+        if ($model->iconCreateFunction) {
+            $definition->setIconCreateFunction(new Expression($model->iconCreateFunction));
+        }
+
+        if ($model->polygonOptions) {
+            $definition->setPolygonOptions((array) json_decode($model->polygonOptions, true));
+        }
+
+        if (!$model->disableDefaultStyle) {
+            $GLOBALS['TL_CSS'][] = 'assets/leaflet/libs/leaflet-markercluster/MarkerCluster.Default.css||static';
+        }
+
+        $collection = LayerModel::findBy(
+            array('pid=?', 'active=1'),
+            array($model->id),
+            array('order' => 'sorting')
+        );
+
+        if ($collection) {
+            foreach ($collection as $layerModel) {
+                $layer = $mapper->handle($layerModel);
+
+                if ($layer instanceof Layer) {
+                    $definition->addLayer($layer);
+
+                    if ($layer instanceof OmnivoreLayer) {
+                        $callback = new AnonymousFunction();
+                        $callback->addLine('layers.' . $definition->getId() . '.addLayers(this.getLayers())');
+
+                        $layer->on('ready', $callback);
+                    }
+                }
+            }
+        }
+    }
+}