openlayers-8.x-4.x-dev/src/Plugin/Interaction/DragPan/DragPan.php

<?php

namespace Drupal\openlayers\Plugin\Interaction\DragPan;

use Drupal\Core\Form\FormStateInterface;
use Drupal\openlayers\Types\Interaction;

/**
 * FIX - Insert short comment here.
 *
 * @OpenlayersPlugin(
 *   id = "ol_interaction_dragpan",
 *   label = @Translation("Drag Pan"),
 *   description = @Translation("Allows the user to pan the map by dragging the map."),
 *   service = "openlayers.Interaction:DragPan",
 *   library = "openlayers-plugin-interaction-dragpan",
 *   is_configurable = "true",
 *   type = "interaction"
 * )
 */
class DragPan extends Interaction {

  /**
   * {@inheritdoc}
   */
  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {

    $form['options']['decay'] = array(
      '#type' => 'textfield',
      '#title' => t('Decay'),
      '#default_value' => $this->getOption('decay', -0.005),
      '#description' => t('Rate of decay (must be negative).'),
    );
    $form['options']['minVelocity'] = array(
      '#type' => 'textfield',
      '#title' => t('Minimum velocity'),
      '#default_value' => $this->getOption('minVelocity', 0.05),
      '#description' => t('Minimum velocity (pixels/millisecond).'),
    );
    $form['options']['delay'] = array(
      '#type' => 'textfield',
      '#title' => t('Delay'),
      '#default_value' => $this->getOption('delay', 100),
      '#description' => t('Delay to consider to calculate the kinetic.'),
    );
    
    return $form;
  }

}