98 lines
2.9 KiB
PHP
98 lines
2.9 KiB
PHP
<?php
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namespace Drupal\farm_map\Element;
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use Drupal\Component\Utility\Html;
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use Drupal\Core\Render\Element\RenderElement;
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use Drupal\farm_map\Event\MapRenderEvent;
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/**
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* Provides a farm_map render element.
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*
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* @RenderElement("farm_map")
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*/
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class FarmMap extends RenderElement {
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/**
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* {@inheritdoc}
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*/
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public function getInfo() {
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$class = get_class($this);
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return [
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'#pre_render' => [
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[$class, 'preRenderMap'],
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],
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'#theme' => 'farm_map',
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'#map_type' => 'default',
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'#map_settings' => [],
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'#behaviors' => [],
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];
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}
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/**
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* Pre-render callback for the map render array.
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*
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* @param array $element
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* A renderable array containing a #map_type property, which will be
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* appended to 'farm-map-' as the map element ID if one has not already
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* been provided.
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*
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* @return array
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* A renderable array representing the map.
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*
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* @see \Drupal\farm_map\Event\MapRenderEvent
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*/
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public static function preRenderMap(array $element) {
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if (empty($element['#attributes']['id'])) {
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// Set the id to the map name.
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$map_id = Html::getUniqueId('farm-map-' . $element['#map_type']);
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$element['#attributes']['id'] = $map_id;
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}
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else {
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$map_id = $element['#attributes']['id'];
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}
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// Get the map type.
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/** @var \Drupal\farm_map\Entity\MapTypeInterface $map */
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$map = \Drupal::entityTypeManager()->getStorage('map_type')->load($element['#map_type']);
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// Add the farm-map class.
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$element['#attributes']['class'][] = 'farm-map';
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// By default, inform farm_map.js that it should instantiate the map.
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if (empty($element['#attributes']['data-map-instantiator'])) {
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$element['#attributes']['data-map-instantiator'] = 'farm_map';
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}
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// Attach the farmOS-map and farm_map libraries.
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$element['#attached']['library'][] = 'farm_map/farmOS-map';
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$element['#attached']['library'][] = 'farm_map/farm_map';
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// If #behaviors are included, attach each one.
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foreach ($element['#behaviors'] as $behavior_name) {
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/** @var \Drupal\farm_map\Entity\MapBehaviorInterface $behavior */
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$behavior = \Drupal::entityTypeManager()->getStorage('map_behavior')->load($behavior_name);
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if (!empty($behavior)) {
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$element['#attached']['library'][] = $behavior->getLibrary();
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}
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}
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// Include the map options.
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$map_options = $map->getMapOptions();
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// Add the instance settings under the map id key.
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$instance_settings = array_merge_recursive($element['#map_settings'], $map_options);
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$element['#attached']['drupalSettings']['farm_map'][$map_id] = $instance_settings;
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// Create and dispatch a MapRenderEvent.
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$event = new MapRenderEvent($map, $element);
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\Drupal::service('event_dispatcher')->dispatch(MapRenderEvent::EVENT_NAME, $event);
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// Return the element.
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return $event->element;
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}
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}
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